cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
DEMOSTRACIÓN VISUAL DE LA CONJETURA DE COLLATZ
Creators: name: Bennassar, Miquel Cerdà
Publisher: name: Zenodo
Year: 2019
Subjects: Demostración
Conjetura de Collatz
tabla 3:2
Collatz
3n+1
Problema 3n+1

description: Demostración visual de la conjetura de Collatz
Stable Dispersion of Coal Fines during Hydraulic Fracturing Flowback in Coal Seam Gas Reservoirs An Experimental Study
Creators: name: Awan, Faisal Ur Rahman
name: Keshavarz, Alireza
name: Akhondzadeh, Hamed
name: Al-Anssari, Sarmad
name: Al-Yaseri, Ahmed
name: Nosrati, Ataollah
name: Ali, Muhammad
name: Iglauer, Stefan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences
subject: 86-05

description: In subterranean coal seam gas CSG reservoirs, massive amounts of small-sized coal fines are released during the production and development stages, especially during hydraulic fracturing stimulation. These coal fines inevitably cause mechanical pump failure and permeability damage due to aggregation and subsequent pore throat blockage. This aggregation behavior is thus of key importance in CSG production and needs to be minimized. Consequently, such coal fines dispersions need to be stabilized, which can be achieved by the formulation of improved fracturing fluids. Here, we thus systematically investigated the effectiveness of two additives; ethanol, 0.5 wt percent and SDBS, 0.001 and 0.01 wt percent, on dispersion stability for a wide range of conditions: pH 6 to 11, salinity of 0.1 to 0.6 M NaCl brine. Technically, the coal suspension flowed through a glass bead proppant pack, and fines retention was measured. We found that even trace amounts of sodium dodecylbenzene sulfonate SDBS i.e. 0.001 wt per cent drastically improved dispersion stability and reduced fines retention. The retention was further quantified by fractal dimensional analysis, which showed lower values for suspensions containing SDBS. This research advances current CSG applications and thus contributes to improved energy security.
description: 12 pages, 12 figures and 4 tables
An holomorphic study of the Smarandache concept in loops
Creators: name: Jaiyeola, Temitope Gbolahan
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics
subject: 20NO5 (Primary), 08A05 (Secondary)

description: If two loops are isomorphic, then it is shown that their holomorphs are also isomorphic. Conversely, it is shown that if their holomorphs are isomorphic, then the loops are isotopic. It is shown that a loop is a Smarandache loop if and only if its holomorph is a Smarandache loop. This statement is also shown to be true for some weak Smarandache loops(inverse property, weak inverse property) but false for others(conjugacy closed, Bol, central, extra, Burn, A-, homogeneous) except if their holomorphs are nuclear or central. A necessary and sufficient condition for the Nuclear-holomorph of a Smarandache Bol loop to be a Smarandache Bruck loop is shown. Whence, it is found also to be a Smarandache Kikkawa loop if in addition the loop is a Smarandache A-loop with a centrum holomorph. Under this same necessary and sufficient condition, the Central-holomorph of a Smarandache A-loop is shown to be a Smarandache K-loop.
description: 9 pages
Characterization of air/fuel mixture and combustion processes in a DISI engine through advanced optical and X-ray based diagnostics
Creators: name: Marchitto, Luca
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2015

description: The present dissertation has investigated the influence of injection parameters on air/fuel mixture and combustion processes in a DISI engine, through advanced diagnostics. It is possible to distinguish three parts of the work: the spray macroscopic parameters characterization, the spray break-up investigation and the study of the effects of injection timing and duration on the combustion process.
In the first stage, the influence of injection pressure and duration on the fuel mass rate and the spray morphology has been analysed. A fuel injection rate meter based on the Bosch Tube principle has provided useful information about the time resolved behaviour of the delivered mass highlighting both transient, such as needle lift and nozzle closing operation, and quasi steady stages of the injection event.
2D Mie-scattering imaging and Particle Image Velocimetry technique have been used for characterizing the liquid spray morphology in terms of tip penetration, cone angle and velocity vector distribution.
Even if the injection parameters affect the overall spray geometry, the characterization of the inner structure of the spray is fundamental for featuring the atomization phenomena which influence the fuel - air interaction. Therefore, Phase Doppler Anemometry (PDA) and Laser Doppler Velocimetry (LDV) have been applied for providing information about the velocity and size of droplets.
Trials have been performed at different injection pressures and distances from the nozzle, along two different axes: the first one corresponding to the jet axis, the second one on the jet edge.
Especially at the higher injection pressure, accurate tests have been possible only at a certain distance from the nozzle, where the spray is more dilute and the laser beam can cross the jet core. For this reason X-ray absorption measurements have been performed in order to investigate high-dense regions of fuel sprays, immediately downstream of the nozzle, providing quantitative measurements of the fuel. X-rays penetrate the dense part of fuel spray because of its weak interaction with the hydrocarbon chain due to their low atomic number. X-ray radiography and tomography have been used to investigate the spray core and reconstruct the 3D inner structure.
The information about the spray development has been used to optimize the injection strategies of an optically accessible DISI engine operating at mid load condition, at a fixed speed of 2000 rpm.
UV-visible imaging has been performed on the engine for investigating the influence of the injection duration and timing on the flame front propagation, while natural emission spectroscopy has been applied to characterize the formation and the evolution of the main compounds featuring the spark ignition and combustion processes. Exhaust emission measurements (HC, CO and NOx) have been correlated with pressure related data and optical results.
Re-Transmission Diversity Multiple Access based on SIC and HARQ-IR
Creators: name: Choi, Jinho
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We consider multiple access with re-transmission diversity (RTxD) based on a hybrid automatic request (HARQ) protocol with incremental redundancy (IR) in this paper. In order to mitigate multiple access interference (MAI), we employ successive interference cancellation (SIC) at a receiver and derive conditions that all the signals from active users can be successfully decoded within a certain number of re-transmissions of IR blocks. We consider two special cases, and based on them we derive two multichannel random access schemes that have subchannels in the power and rate domains. Through the analysis and simulations, we can show that the proposed RTxD random access schemes can outperform other existing similar RTxD random access schemes.
description: 11 pages, 9 figures
Coarse-grained Interaction Potentials for Anisotropic Molecules
Creators: name: Babadi, M.
name: Everaers, R.
name: Ejtehadi, M. R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We have proposed an efficient parameterization method for a recent variant of the Gay-Berne potential for dissimilar and biaxial particles and demonstrated it for a set of small organic molecules. Compared to the previously proposed coarse-grained models, the new potential exhibits a superior performance in close contact and large distant interactions. The repercussions of thermal vibrations and elasticity has been studied through a statistical method. The study justifies that the potential of mean force is representable with the same functional form, extending the application of this coarse-grained description to a broader range of molecules. Moreover, the advantage of employing coarse-grained models over truncated atomistic summations with large distance cutoffs has been briefly studied.
description: 8 pages, 4 tables and 6 figures. To appear in J. Chem. Phys
Intergalactic medium heating by dark matter
Creators: name: Ripamonti, E.
name: Mapelli, M.
name: Ferrara, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We derive the evolution of the energy deposition in the intergalactic medium (IGM) by dark matter (DM) decays/annihilations for both sterile neutrinos and light dark matter (LDM) particles. At z > 200 sterile neutrinos transfer a fraction f_abs~0.5 of their rest mass energy into the IGM; at lower redshifts this fraction becomes 300) redshift, dropping to ~0.1 below z=100. These results indicate that the impact of DM decays/annihilations on the IGM thermal and ionization history is less important than previously thought. We find that sterile neutrinos (LDM) decays are able to increase the IGM temperature by z=5 at most up to 4K (100K), about 50-200 times less than predicted by estimates based on the assumption of complete energy transfer to the gas.
description: 13 pages, 7 figures; MNRAS, in press; matches the published version
Cosmological solutions of supercritical string theory
Creators: name: Hellerman, Simeon
name: Swanson, Ian
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study quintessence-driven, spatially flat, expanding FRW cosmologies that arise naturally from string theory formulated in a supercritical number of spacetime dimensions. The tree-level potential of the string theory produces an equation of state at the threshold between accelerating and decelerating cosmologies, and the resulting spacetime is globally conformally equivalent to Minkowski space. We demonstrate that exact solutions exist with a condensate of the closed-string tachyon, the simplest of which is a Liouville wall moving at the speed of light. We rely on the existence of this solution to derive constraints on the couplings of the tachyon to the dilaton and metric in the string theory effective action. In particular, we show that the tachyon dependence of the Einstein term must be nontrivial.
description: v2: typos corrected and references added; v3: minor corrections; 35 pages, 9 figures
Evaluation of the KLauS ASIC at low temperature
Creators: name: Wang, Wei
name: Shen, Wei
name: Yuan, Zhenxiong
name: Briggl, Konrad
name: Schultz-Coulon, Hans-Christian
name: Yan, Wenqi
name: Cao, Guofu
name: Li, Zepeng
name: Qi, Ming
name: Wen, Liangjian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The Taishan Antineutrino Observatory (TAO) is proposed to first use a cold liquid scintillator detector (-50~$^\circ$C) equipped with large-area silicon photomultipliers (SiPMs) ($\sim$10~m$^2$) to precisely measure the reactor antineutrino spectrum with a record energy resolution of < 2\% at 1 MeV. The KLauS ASIC shows excellent performance at room temperature and is a potential readout solution for TAO. In this work, we report evaluations of the fifth version of the KLauS ASIC (KLauS5) from room temperature to -50~$^\circ$C with inputs of injected charge or SiPMs. Our results show that KLauS5 has good performance at the tested temperatures with no significant degradation of the charge noise, charge linearity, gain uniformity or recovery time. Meanwhile, we also observe that several key parameters degrade when the chip operates in cold conditions, including the dynamic range and power consumption. However, even with this degradation, a good signal-to-noise ratio and good resolution of a single photoelectron can still be achieved for the tested SiPM with a gain of greater than 1.5$\times$10$^6$ and even an area of SiPM up to 1~cm$^2$ in one channel, corresponding to an input capacitance of approximately 5~nF. Thus, we conclude that KLauS5 can fulfill the TAO requirements for precise charge measurement.
description: 15 pages, 12 figures, aticle
Nonclassical characteristic functions for highly sensitive measurements
Creators: name: Richter, Th.
name: Vogel, W.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Characteristic functions are shown to be useful for highly sensitive measurements. Redistributions of motional Fock states of a trapped atom can be directly monitored via the most fragile nonclassical part of the characteristic function. The method can also be used for decoherence measurements in optical quantum-information systems.
description: 4 pages, 3 figures
Two-proton radioactivity of exotic nuclei beyond proton drip-line
Creators: name: Wang, Yanzhao
name: Cui, Jianpo
name: Gao, Yonghao
name: Gu, Jianzhong
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: To search for new candidates of the true and simultaneous two-proton ($2p$) radioactivity, the $2p$ decay energies (\textit{Q}$_{2p}$) are extracted by the Weizsäcker-Skyrme-4 (WS4) model, the finite-range droplet model (FRDM), the Kourra-Tachibaba-Uno-Yamada (KTUY) model and the Hartree-Fock-Bogoliubov mean-field model with the BSk29 Skyrme interaction (HFB29). Then, the $2p$ radioactivity half-lives are calculated within the generalized liquid drop model (GLDM) by inputting the four types of \textit{Q}$_{2p}$ values. By the energy and half-life constraints, it is found that the probable $2p$ decay candidates are the nuclei beyond the proton-drip line in the region of \textit{Z} $
Tsaagwaa Yeigi in the spirit of the Hood Bay family : repatriation of a Tlingit burial chest
Creators: name: Jackson, Dawn Skee’
Publisher: name: University of British Columbia
Year: 2009

description: The Native Peoples of the United States have continuously been aware of important items held in museum collections integral to their lifeways as distinct cultures, and until the Native American Graves Protection and Repatriation Act (NAGPRA) passed in 1990, there was no law in place to regain ownership of such important items. The focus of this thesis is a burial chest stored at the Alaska State Museum held in custody by the United States National Forest Service. There is speculation that the remains held within the chest are of Tsaagweidi ancestry, a clan or family from the Kake, AK area. In accordance with NAGPRA regulations, the Forest Service has contacted the Organized Village of Kake (OVK), the Tribal entity in Kake, regarding possible repatriation of the chest. The purpose of this thesis is to not only find a culturally appropriate approach that Native tribes like Kake can work with, but to specifically describe how ownership is established through family history, constructed through historical research and interviews with local people from Kake familiar with the Killerwhale family. This requires the understanding that there is no single Native perspective and that each tribe will define their own unique approach to repatriation. Questions of reburial practices have surfaced, for reburial by means of repatriation haven't been practiced by OVK as of yet. Since OVK hasn't formally been through a repatriation request, it is hoped that this thesis also will help OVK to establish a clan, tribal, cultural, or territorial affiliation for the burial chest in accordance with NAGPRA regulations.
A Vehicles Control Model to Alleviate Traffic Instability
Creators: name: Fang, Jiancheng
name: Xiang, Yu
name: Huang, Yu
name: Cui, Yilong
name: Wang, Wenyong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: While bringing convenience to people, the growing number of vehicles on road already cause inevitable traffic congestion. Some traffic congestion happen with observable reasons, but others occur without apparent reasons or bottlenecks, which referred to as phantom jams, are caused by traditional vehicle following model. In order to alleviate the traffic instability caused by phantom jam, several models have been proposed with the development of intelligent transportation system (ITS). these have been proved to be able to suppress traffic instability in the ideal situation. But in road scenarios, uncertainties of vehicle state measurements and time delay caused by on-board sensors, inter-vehicle communications and control system of vehicles will affect the performance of the existing models severely, and cannot be ignored. In this paper, a novel predictable bilateral control model-PBCM, which consists of best estimation and state prediction is proposed to determine accurate acceleration values of the host vehicle in traffic flow to alleviate traffic instability. Theoretical analysis and simulation results show that our model could reduce the influence of the measurement errors and the delay caused by communication and control system effectively, control the state of the vehicles in traffic flow accurately, thus achieve the goal of restrain the instability of traffic flow.
description: 13 pages, 35 figures
Assessing management of perioperative pain at the Prizren Regional Hospital in Kosovo
Creators: name: Bytyqi, Adem
Publisher: name: F1000Research
Year: 2015

description: Data about pain-related Patient Reported Outcomes (PROs) and perioperative pain management was collected in one hospital in Kosovo assessing need for optimizing management.

PAIN OUT methodology was used to collect data. PAIN OUT is an international registry, providing standardized and validated tools to assess pain management after surgery.
Edge Channel Interference Controlled by Landau Level Filling
Creators: name: Litvin, L. V.
name: Helzel, A.
name: Tranitz, H. -P.
name: Wegscheider, W.
name: Strunk, C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the visibility of Aharonov-Bohm interference in an electronic Mach-Zehnder interferometer (MZI) in the integer quantum Hall regime. The visibility is controlled by the filling factor $ν$ and is observed only between $ν\approx 2.0$ and 1.0, with an unexpected maximum near $ν=1.5$. Three energy scales extracted from the temperature and voltage dependences of the visibility change in a very similar way with the filling factor, indicating that the different aspects of the interference depend sensitively on the local structure of the compressible and incompressible strips forming the quantum Hall edge channels.
description: 5 pages, 5 figures, final version accepted for publication in Phys. Rev. B
Dijet Acoplanarity in CUJET3 as a Probe of the Nonperturbative Color Structure of QCD Perfect Fluids
Creators: name: Gyulassy, M.
name: Jacobs, P. M.
name: Liao, J.
name: Shi, S.
name: Wang, X. N.
name: Yuan, F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Using the CUJET3=DGLV+VISHNU jet-medium interaction framework, we show that dijet azimuthal acoplanarity in high energy $A+A$ collisions is sensitive to possible non-perturbative enhancement of the jet transport coefficient, $\hat{q}(T,E)$, in the QCD crossover temperature $T\sim 150-300$ MeV range. With jet-medium couplings constrained by global RHIC\& LHC $χ^2$ fits to nuclear modification data on $R_{AA}$, we compare predictions of the medium induced dijet transverse momentum squared, $Q_s^2\sim \langle \hat{q} L \rangle \sim Δϕ^2 E^2$, in two models of the temperature, $T$, and jet energy $E$ dependence of the jet medium transport coefficient, $\hat{q}(T,E)$. In one model, wQGP, only perturbative quark and gluon dof are assumed. In the second model, sQGMP, nonperturbative three component semi-Quark-Gluon and Magnetic Monopole dof are asssumed. We show that the dijet path averaged medium induced azimuthal acoplanarity, $Δϕ^2$, in sQGMP is robustly a factor of $\sim 2$ larger than in perturbative wQGP while the radiative energy loss in both models is nearly identical as required to fit the same single jet nuclear modification $R_{AA}$ data. Future A+A dijet acoplanarity measurements correlated with $R_{AA}$ and azimuthal asymmetry $v_n$ measurements therefore appears to be a promising strategy to search for possible signatures of critical opalescence like phenomena in the QCD confinement temperature range.
description: 4 pages, 5 figures, Published in the Proceedings of XXVIIIth International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (Quark Matter 2019)
Personal theories of hunger and eating
Creators: name: Assanand, Sunaina
Publisher: name: University of British Columbia
Year: 2009

description: Recent research on hunger and eating has shown (a) that among individuals with ad libitum access to food, hunger and eating are not regulated by deviations in the body's energy resources from energy set-points, and (b) that it is healthier for people to consume their daily caloric intake as several small snacks than as three large meals. People's beliefs about hunger and eating were assessed in two questionnaire studies. In Study 1, a large sample of university undergraduates was surveyed; in Study 2, dietetics students, nursing students, medical students, dietitians, nurses, and doctors were surveyed. Both studies revealed that people's personal theories of hunger and eating were inconsistent with recent research findings in ways that are likely to promote over consumption and ill health. These results suggest that educational programs designed to modify the beliefs about hunger and eating of people suffering from problems of over consumption and of health professionals who treat problems of over consumption may increase the effectiveness of current treatment regimens.
Supersymmetric low-energy theory and renormalization group for a clean Fermi gas with a repulsion in arbitrary dimensions
Creators: name: Aleiner, I. L.
name: Efetov, K. B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We suggest a new method of calculations for a clean Fermi gas with a repulsion in any dimension. This method is based on writing equations for quasiclassical Green functions and reducing them to equations for collective spin and charge excitations. The spin excitations interact with each other and this leads to non-trivial physics. Writing the solution of the equations and the partition function in terms of a functional integral over supervectors and averaging over fluctuating fields we come to an effective field theory describing the spin excitations. In some respects, the theory is similar to bosonization but also includes the ``ghost'' excitations which prevents overcounting of the degrees of freedom. Expansion in the interaction reveals logarithmic in temperature corrections. This enables us to suggest a renormalization group scheme and derive renormalization group equations. Solving these equations and using their solutions for calculating thermodynamic quantities we obtain explicit expression for the specific heat containing only an effective amplitude of the backward scattering. This amplitude has a complicated dependence on the logarithm of temperature, which leads to a non-trivial temperature dependence of the specific heat.
Towards an observational test of black hole versus naked singularity at the galactic center
Creators: name: Dey, Dipanjan
name: Joshi, Pankaj S.
name: Joshi, Ashok
name: Bambhaniya, Parth
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: While the event horizon of a black hole could cast a shadow that was observed recently, a central singularity without horizon could also give rise to such a feature. This leaves us with a question on the nature of the supermassive black holes at the galactic centers, and if they admit an event horizon necessarily. We point out that observations of motion of stars around the galactic center should give a clear idea of the nature of this central supermassive object. We examine and discuss here recent developments that indicate intriguing behavior of the star motions that could possibly distinguish the existence or otherwise of an event horizon at the galactic center. We compare the motion of the S2 star with these theoretical results, fitting the observational data with theory, and it is seen that the star motions and precession of their orbits around the galactic center provide important clues on the nature of this central compact object.
description: 12 pages, 9 figures
Frequency noise and intensity noise of next-generation gravitational-wave detectors with RF/DC readout schemes
Creators: name: Somiya, K.
name: Chen, Y.
name: Kawamura, S.
name: Mio, N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The sensitivity of next-generation gravitational-wave detectors such as Advanced LIGO and LCGT should be limited mostly by quantum noise with an expected technical progress to reduce seismic noise and thermal noise. Those detectors will employ the optical configuration of resonant-sideband-extraction that can be realized with a signal-recycling mirror added to the Fabry-Perot Michelson interferometer. While this configuration can reduce quantum noise of the detector, it can possibly increase laser frequency noise and intensity noise. The analysis of laser noise in the interferometer with the conventional configuration has been done in several papers, and we shall extend the analysis to the resonant-sideband-extraction configuration with the radiation pressure effect included. We shall also refer to laser noise in the case we employ the so-called DC readout scheme.
description: An error in Fig. 10 in the published version in PRD has been corrected in this version; an erratum has been submitted to PRD. After correction, this figure reflects a significant difference in the ways RF and DC readout schemes are susceptible to laser noise. In addition, the levels of mirror loss imbalances and input laser amplitude noise have also been updated to be more realistic for Advanced LIGO
Real-Time Detection of Simulator Sickness in Virtual Reality Games Based on Players' Psychophysiological Data during Gameplay
Creators: name: Wang, Jialin
name: Liang, Hai-Ning
name: Monteiro, Diego
name: Xu, Wenge
name: Chen, Hao
name: Chen, Qiwen
Publisher: name: arXiv
Year: 2020
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Virtual Reality (VR) technology has been proliferating in the last decade, especially in the last few years. However, Simulator Sickness (SS) still represents a significant problem for its wider adoption. Currently, the most common way to detect SS is using the Simulator Sickness Questionnaire (SSQ). SSQ is a subjective measurement and is inadequate for real-time applications such as VR games. This research aims to investigate how to use machine learning techniques to detect SS based on in-game characters' and users' physiological data during gameplay in VR games. To achieve this, we designed an experiment to collect such data with three types of games. We trained a Long Short-Term Memory neural network with the dataset eye-tracking and character movement data to detect SS in real-time. Our results indicate that, in VR games, our model is an accurate and efficient way to detect SS in real-time.
description: IEEE International Symposium on Mixed and Augmented Reality (ISMAR)
Co-creating health. Learnings from 20 game jams for health and the European hackathon against covid
Creators: name: Balli, Fabio
Publisher: name: Zenodo
Year: 2021
Subjects: health commons
health democracy
digital health
mhealth
e-health
co-creation for health
hackathons for health
hacking health
game jams for health
disease management
critical public health
community-driven
maker communities
hacker communities
interdisciplinarity
transdisciplinarity
online events
event facilitation
Emerging Change
respiratory health

description: After a quiz to show the importance or respiratory health, I present the evolution of Breathing Games, from our first hackathon in Montreal in 2014 to the game jam held in Montreal, Geneva, Paris and Besançon. The three main games developed (two for children with asthma, one multiplayer where people can recount their experience by creating a game level) and controllers are then shortly presented. The evolution of perspective, from the self-management of disease to reflecting on social and political barriers to health is briefly mentioned. I then discuss common problems in organizing hackathons (information overload, waste of resources, loss of motivation), and illustrate it with the multiplication of unfinished open-source ventilation machines where one single modular design would in fact be needed. I present numbers of the covid hackathons held between March and June 2020, which mobilized 150000 people. The workforce mobilized for the five biggest events equaled 1568 full time employees… who developed 5771 competing, redundant projects instead of building on the collective wisdom. Finally, I present today's action to build health as commons, showing that solidarity-driven medical innovation is up to 99% cheaper. I propose a method to host large-scale events to empower citizens in building democratic, plural solutions within days. A six steps model to host such events is sketched. Editable .odp file included.
Acceleration of the Universe via f(R) Gravities and The Stability of Extra Dimensions
Creators: name: Rador, Tonguç
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the possibility of obtaining the present acceleration of the universe via f(R) gravity theories which recently attracted much attention. It is known that f(R) theories generally have room for this. In this work we stress that the requirement for the stabilization of extra dimensions is naturally incorporated in such a generalization of Einstein gravity under rather orthodox assumptions. We have restricted our study to pure f(R) gravity without additional matter sources partially in view of the fact that if the acceleration is to continue indefinitely any ordinary matter term is to redshift to irrelevancy and mostly for economy in understanding. The general conditions we find is that the manifold of the extra dimensional space is to have negative internal curvature and that the Ricci scalar of the full space-time manifold is also negative. The positive curvature case for extra dimensional manifold is actually the most generic case. However this necessitates a fine tuning between the Hubble constant and the size of extra dimensions in the absence of matter sources.
description: Added and corrected some references, corrected typos and clarified an argument about vanishing curvature scalar solutions. Added further references and a note on the earlier related works of Zhuk et. al. I thank Prof. Zhuk for his comments. Added further references. Somewhat enlarged and clarified exposition
ผลการปักเข็มกระตุ้นไฟฟ้าแบบฝังเข็มร่วมกับการทำแผลด้วยวิธีมาตรฐานต่อการสมานแผล: การศึกษานำร่อง
Creators: name: จักรี ฝ้ายเทศ, จรัสพรรษ วงศ์วิเศษกาญจน์,พีระกรณ์ นิธิกรอธิวัฒน์,อารมย์ ขุนภาษี
Publisher: name: ราชวิทยาลัยแพทย์เวชศาสตร์ฟื้นฟู แห่งประเทศไทย
Year: 2558
Subjects: แผลกดทับ, แผลเรื้อรัง, การปักเข็มกระตุ้นไฟฟ้า, การสมานแผล, การฝังเข็ม

description: 3, 25, เวชศาสตร์ฟื้นฟูสาร
A mutual information-based in vivo monitoring of adaptive response to targeted therapies in melanoma
Creators: name: Bugi-Marteyn, Aurore
name: Noulet, Fanny
name: Liaudet, Nicolas
name: Merat, Rastine
Publisher: name: arXiv
Year: 2021
Subjects: subject: Tissues and Organs (q-bio.TO)
subject: FOS: Biological sciences

description: The mechanisms of adaptive resistance to genetic-based targeted therapies of solid malignancies have been the subject of intense research. These studies hold great promise for finding co-targetable hub/pathways which in turn would control the downstream non-genetic mechanisms of adaptive resistance. Many such mechanisms have been described in the paradigmatic BRAF-mutated melanoma model of adaptive response to BRAF inhibition. Currently, a major challenge for these mechanistic studies is to confirm in vivo, at the single-cell proteomic level, the existence of dependencies between the co-targeted hub/pathways and their downstream effectors. Moreover, the drug-induced in vivo modulation of these dependencies needs to be demonstrated. Here, we implement such single-cell-based in vivo expression dependency quantification using immunohistochemistry (IHC)-based analyses of sequential biopsies in two xenograft models. These mimic phase 2 and 3 trials in our own therapeutic strategy to prevent the adaptive response to BRAF inhibition. In this mechanistic model, the dependencies between the targeted Li2CO3-inducible hub HuR and the resistance effectors are more likely time-shifted and transient since the minority of HuRLow cells, which act as a reservoir of adaptive plasticity, switch to a HuRHigh state as they paradoxically proliferate under BRAF inhibition. Nevertheless, we show that a copula/kernel density estimator (KDE)-based quantification of mutual information (MI) efficiently captures, at the individual level, the dependencies between HuR and two relevant resistance markers pERK and EGFR, and outperforms classic expression correlation coefficients. Ultimately, the validation of MI as a predictive IHC-based metric of response to our therapeutic strategy will be carried in clinical trials.
description: 9 pages, 5 figures Corrected typos
The Extended Fe distribution in the intracluster medium and the implications regarding AGN Heating
Creators: name: David, Laurence P.
name: Nulsen, Paul E. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a systematic analysis of XMM-Newton observations of 8 cool-core clusters of galaxies and determine the Fe distribution in the intracluster medium relative to the stellar distribution in the central dominant galaxy (CDG). Our analysis shows that the Fe is significantly more extended than the stellar mass in the CDG in all of the clusters in our sample, with a slight trend of increasing extent with increasing central cooling time. The excess Fe within the central 100 kpc in these clusters can be produced by Type Ia supernovae from the CDG over the past 3-7 Gyr. Since the excess Fe primarily originates from the CDG, it is a useful probe for determining the motion of the gas and the mechanical energy deposited by AGN outbursts over the past $\sim$ 5 Gyr in the centers of clusters. We explore two possible mechanisms for producing the greater extent of the Fe relative to the stars in the CDG, including: bulk expansion of the gas and turbulent diffusion of Fe. Assuming the gas and Fe expand together, we find that a total energy of $10^{60} - 10^{61}$~erg~s$^{-1}$ must have been deposited into the central 100 kpc of these clusters to produce the presently observed Fe distributions. Since the required enrichment time for the excess Fe is approximately 5 Gyr in these clusters, this gives an average AGN mechanical power over this time of $10^{43} - 10^{44}$~erg~s$^{-1}$. The extended Fe distribution in cluster cores can also arise from turbulent diffusion. Assuming steady-state (i.e., the outward mass flux of Fe across a given surface is equal to the mass injection rate of Fe within that surface) we find that diffusion coefficients of $10^{29} - 10^{30}$ cm$^2$~s$^{-1}$ are required to maintain the presently observed Fe profiles (abridged).
description: 14 pages, 18 figures - Accepted for publication in The Astrophysical Journal
Quantum fidelity and quantum phase transitions in matrix product states
Creators: name: Cozzini, M.
name: Ionicioiu, R.
name: Zanardi, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Matrix product states, a key ingredient of numerical algorithms widely employed in the simulation of quantum spin chains, provide an intriguing tool for quantum phase transition engineering. At critical values of the control parameters on which their constituent matrices depend, singularities in the expectation values of certain observables can appear, in spite of the analyticity of the ground state energy. For this class of generalized quantum phase transitions we test the validity of the recently introduced fidelity approach, where the overlap modulus of ground states corresponding to slightly different parameters is considered. We discuss several examples, successfully identifying all the present transitions. We also study the finite size scaling of fidelity derivatives, pointing out its relevance in extracting critical exponents.
description: 7 pages, 3 figures
A Numerical Treatment of the Rf SQUID: I. General Properties and Noise Energy
Creators: name: Kleiner, Reinhold
name: Koelle, Dieter
name: Clarke, John
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigate the characteristics and noise performance of rf Superconducting Quantum Interference Devices (SQUIDs) by solving the corresponding Langevin equations numerically and optimizing the model parameters with respect to noise energy. After introducing the basic concepts of the numerical simulations, we give a detailed discussion of the performance of the SQUID as a function of all relevant parameters. The best performance is obtained in the crossover region between the dispersive and dissipative regimes, characterized by an inductance parameter β_L'\equiv 2πL I_0/Φ_0\approx 1; L is the loop inductance, I_0 the critical current of the Josephson junction, and Φ_0 the flux quantum. In this regime, which is not well explored by previous analytical approaches, the lowest (intrinsic) values of noise energy are a factor of about 2 above previous estimates based on analytical approaches. However, several other analytical predictions, such as the inverse proportionality of the noise energy on the tank circuit quality factor and the square of the coupling coefficient between the tank circuit and the SQUID loop, could not be well reproduced. The optimized intrinsic noise energy of the rf SQUID is superior to that of the dc SQUID at all temperatures. Although for technologically achievable parameters this advantage shrinks, particularly at low thermal fluctuation levels, we give an example for realistic parameters that leads to a noise energy comparable to that of the dc SQUID even in this regime.
description: submitted to J. Low Temp. Phys
ANASTOMOSI COLOANALE SECONDO TECNICA DELL PULL-THROUGH MODIFICATA COME PRIMA SCELTA NEL TRATTAMENTO CHIRURGICO DELL'ADENOCARCINOMA DEL RETTO BASSO
CON RISPARMIO DEGLI SFINTERI
Creators: name: De Franciscis, Silvia
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2015

description: Negli ultimi 30 anni sono avvenuti grandi cambiamenti nell'approccio alla cura del cancro del retto.
Il trattamento chirurgico si è evoluto dalla resezione addominoperineale con confezionamento di colostomia definitiva alla resezione anteriore del retto con escissione completa del mesoretto e ricostruzione della continuità intestinale grazie ad anastomosi coloanali.
Il più grande problema legato alle anastomosi coloanali è il rischio legato alle fistole anastomotiche.
Come alternativa alla coloanale si propone l'utilizzo di tecnica di Turnbull-Cutait modificata. Viene posto come obiettivo primario la riduzione delle complicanze perioperatorie rispetto alla tecnica standard.
Si presenta uno studio osservazionale prospettico su 15 pazienti affetti da adenocarcinoma del retto basso operati di resezione completa del mesoretto con ricostruzione coloanale secondo tecnica di Turnbull-Cutait modificata.
Examination of the mechanisms by which extracellular calcium stimulates gastrin release from human antral G cells
Creators: name: Ray, Jeannine Marie
Publisher: name: University of British Columbia
Year: 2009

description: In the stomach, luminal Ca²⁺ concentrations stimulate gastrin release. The objective of these studies was to determine whether voltage-dependent calcium channels (VDCCs) and the calcium receptor (CaR) mediate calcium-stimulated gastrin release from human antral gastrin (G) cells. The presence of L-type VDCCs in our preparation of G cell-enriched human antral cells was examined by reverse transcription-polymerase chain reaction (RT-PCR) analysis of extracted mRNA using oligonucleotide primers to human class C or D, L-type α₁ subunit sequences. Products of approximately the expected size were obtained, and sequence analysis confirmed a 100% homology to previously published sequences. L-type VDCCs were localized to the G cell via immunocytochemistry. Nitrendipine (1 μM), an L-type VDCC antagonist, significantly reduced Ca²⁺ (3.6 mM) or terbutaline (10⁻⁸-10⁻⁵ M) stimulated gastrin release. These findings suggest that Ca²⁺ influx through L-type VDCCs is involved in Ca²⁺- and β-adrenergic stimulated gastrin release. The presence of the CaR, was examined by RT-PCR using primers to the human parathyroid CaR sequence. One product of approximately the expected size was obtained, with a 100% sequence identity to that previously published. Immunocytochemistry localized the CaR to gastrin, but not somatostatin-containing cells. Gastrin release was stimulated by two known agonists of the CaR, Ca²⁺ (3.6-9 mM) and spermine (100 μM and 1 mM), and was reduced by 1 μM nitrendipine. These findings suggest that the CaR is present in G cells, and activation by Ca²⁺ and/or spermine activates L-type channels and stimulates gastrin release. G cells exhibit an extended dose response, therefore, the involvement of a CaR variant was examined by RT-PCR using primers spanning the entire CaR coding region. Two products approximately 306 (varl) and 100 (var2) base pairs (bps) shorter were obtained. Sequence analysis of product varl revealed a cDNA with a deletion corresponding to exon two; product var2 has yet to be cloned or sequenced. It is possible that the antral CaR splice variants have a decreased affinity for Ca²⁺. These studies suggest that Ca²⁺ stimulates gastrin release by activating L-type VDCCs, and/or the CaR. In antral cells the CaR mRNA is alternatively spliced deleting the region normally encoding exon 2.
Photo-production of Positive Parity Excited Baryons in the 1/Nc Expansion of QCD
Creators: name: Scoccola, Jose L. Goity Norberto N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the photo-production helicity amplitudes for the positive parity excited baryons in the context of the $1/N_c$ expansion of QCD. The results show that sub-leading corrections in $1/N_c$ are important and that, while 1-body effective operators are dominant, there is some evidence for the need of 2-body effects.
description: 10 pages
Inertial and viscous flywheel sensing of nanoparticles
Creators: name: Katsikis, Georgios
name: Collis, Jesse F.
name: Knudsen, Scott M.
name: Agache, Vincent
name: Sader, John E.
name: Manalis, Scott R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Rotational dynamics often challenge physical intuition while enabling unique realizations, from the rotor of a gyroscope that maintains its orientation regardless of the outer gimbals, to a tennis racket that rotates around its handle when tossed face-up in the air. In the context of inertial mass sensing, which can measure mass with atomic precision, rotational dynamics are normally considered a complication hindering measurement interpretation. Here, we exploit the rotational dynamics of a microfluidic device to develop a new modality in inertial resonant sensing. Combining theory with experiments, we show that this modality normally measures the volume of the particle while being insensitive to its density. Paradoxically, particle density only emerges when fluid viscosity becomes dominant over inertia. We explain this paradox via a viscosity-driven, hydrodynamic coupling between the fluid and the particle that activates the rotational inertia of the particle, converting it into a viscous flywheel. This modality now enables the simultaneous measurement of particle volume and mass in fluid, using a single, high-throughput measurement.
description: 20 pages, 4 figures, 12 s. figures, 2 s. tables
Triple points and phase diagrams of Born-Infeld AdS black holes in 4D Einstein-Gauss-Bonnet gravity
Creators: name: Zhang, Chao-Ming
name: Zou, De-Cheng
name: Zhang, Ming
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: By treating the cosmological constant as a thermodynamic pressure, we investigate the thermodynamic behaviors of Born-Infeld AdS black hole in 4D Einstein-Gauss-Bonnet (EGB) gravity. The result shows that the Van der Waals like small/large black hole (SBH/LBH) phase transition always appears for any positive parameters $α$ and $β$. Moreover, we observe a new phenomenon of small/intermediate/large black hole (SBH/IBH/LBH) phase transition with one tricritical and two critical points in the available parameter region for αand β. This behavior is reminiscent of the solid/liquid/gas phase transition.
Poultry Waste Management in India: A Growing Challenge
Creators: name: Dr. Rachana Sharma and Dr. Tanmay Mondal
Publisher: name: Bio Vet Innovator Magazine
Year: 2024

description: Poultry is one of the fastest-growing segments of the agricultural sector in India today. As crop production alone may not sufficient to address the food security challenges posed by the rapidly growing population, poultry production has emerged as a vital solution for fulfilling dietary needs. Currently, India ranks as the world's third-largest egg producer, the fourth-largest producer of chicken, and the fifth-largest in poultry meat production. As the poultry industry expands, it faces increasing challenges in managing the waste generated from production. It has been noted that if waste needs to be transported to a disposal site, it must be placed in sealed containers to prevent spillage. Globally, over 90% of poultry waste is typically spread on land near poultry farms. The poultry industry generates significant amounts of solid waste, including bedding material, excreta, feed, feathers, hatchery waste, mortality waste, and wastewater comprising feces, urine, sawdust, and residues from drugs and pesticides used in disinfecting chicken houses and abattoirs. Therefore, proper disposal and management of this waste are crucial for minimizing risks and maximizing the advantages of the poultry industry. Various techniques are available for managing and disposing of poultry waste to recycle nutrients and mitigate potential hazards. This article highlights different methods aimed at effective management and disposal of poultry waste, emphasizing the importance of sustainable practices in the poultry industry.