cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Bayesian spatio-temporal model with INLA for dengue fever risk prediction in Costa Rica
Creators: name: Chou-Chen, Shu-Wei
name: Barboza, Luis A.
name: Vásquez, Paola
name: García, Yury E.
name: Calvo, Juan G.
name: Hidalgo, Hugo G.
name: Sanchez, Fabio
Publisher: name: arXiv
Year: 2023
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Due to the rapid geographic spread of the Aedes mosquito and the increase in dengue incidence, dengue fever has been an increasing concern for public health authorities in tropical and subtropical countries worldwide. Significant challenges such as climate change, the burden on health systems, and the rise of insecticide resistance highlight the need to introduce new and cost-effective tools for developing public health interventions. Various and locally adapted statistical methods for developing climate-based early warning systems have increasingly been an area of interest and research worldwide. Costa Rica, a country with micro-climates and endemic circulation of the dengue virus (DENV) since 1993, provides ideal conditions for developing projection models with the potential to help guide public health efforts and interventions to control and monitor future dengue outbreaks.
The Effect of Strategic Project Implementation Effectiveness, Integration and Strategic Alignment on Organizational Performance: the case of ACE (Achieving Competency Excellence) project in Ethiopian Airlines
Creators: name: Aklilu Gudeta
Publisher: name: Zenodo
Year: 2017

description: The purpose of this paper is to explore the influence of ACE (Achieving Competency Excellence)

project implementation, integration and strategic alignment on organizational performance in

the case of Ethiopian Airlines MRO division. The hypotheses were simultaneously tested on a

sample of 336 respondents out of 385 distributed, giving a valid response rate of 87 percent.

Simple regression analysis was used to assess the relationships among the variables under

investigation. The applications used to analyze and examine the hypotheses are the Statistical

Package for Social Sciences V.21. The findings of this study have shown a significant effect of

ACE project successful implementation, integration and strategic alignment on organizational

performance at the level of (α ≤ 0.05). The results are useful in identifying areas for strategic

focus to help the airline’s future strategic project management. As evident from the finding

section that the study was conducted in Ethiopian Airlines MRO division only, applicability of

the results in other divisions may result differently. Further, as the project is conducted in the

airlines industry with unique project, application of the similar study in other industries, like;

education, financial, and health may not come up with the same findings
Quantization of systems with internal degrees of freedom in two-dimensional manifolds
Creators: name: Rożko, Ewa Eliza
name: Gobcewicz, Ewa
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Presented is a primary step towards quantization of infinitesimal rigid body moving in a two-dimensional manifold. The special stress is laid on spaces of constant curvature like the two-dimensional sphere and pseudosphere (Lobatschevski space). Also two-dimensional torus is briefly discussed as an interesting algebraic manifold.
description: 19 pages
Energy Transformer
Creators: name: Hoover, Benjamin
name: Liang, Yuchen
name: Pham, Bao
name: Panda, Rameswar
name: Strobelt, Hendrik
name: Chau, Duen Horng
name: Zaki, Mohammed J.
name: Krotov, Dmitry
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Neurons and Cognition (q-bio.NC)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Our work combines aspects of three promising paradigms in machine learning, namely, attention mechanism, energy-based models, and associative memory. Attention is the power-house driving modern deep learning successes, but it lacks clear theoretical foundations. Energy-based models allow a principled approach to discriminative and generative tasks, but the design of the energy functional is not straightforward. At the same time, Dense Associative Memory models or Modern Hopfield Networks have a well-established theoretical foundation, and allow an intuitive design of the energy function. We propose a novel architecture, called the Energy Transformer (or ET for short), that uses a sequence of attention layers that are purposely designed to minimize a specifically engineered energy function, which is responsible for representing the relationships between the tokens. In this work, we introduce the theoretical foundations of ET, explore its empirical capabilities using the image completion task, and obtain strong quantitative results on the graph anomaly detection and graph classification tasks.
The dynamical temperature and the standard map
Creators: name: Shevchenko, I. I.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Numerical experiments with the standard map at high values of the stochasticity parameter reveal the existence of simple analytical relations connecting the volume and the dynamical temperature of the chaotic component of the phase space.
description: 14 pages, 5 figures
Involvement of Candida albicans in hyperkeratosis of the Göttingen minipig
Creators: name: Bollen, P J A
name: Madsen, L W
name: Mortensen, J T
name: Ritskes-Hoitinga, J
name: Hansen, A K
Publisher: name: Scandinavian Journal of Laboratory Animal Sciences
Year: 2019

description: At a breeding colony of Göttingen minipigs, 6404 animals born in 1995-1997 were examined for the ocurance of hyperkeratosis. and the percentage of animals with hyperkeratosis was calculated on a monthly base. From 25 animals. skin swabs were taken, and the swabs were inoculated on Saburaud’s agar. pH 4.2 at 20 C for three to seven days. All morphologically distinct colonies were sampled and grown as pure cultures on Sabauraud’s agar after which they were Gram stained. The percentage animals with hyperkeratosis varied from 1.4 to 6.9% monthly, with an average of 3.6%, 4.9% and 4 8% for the years 1995, 1996 and 1997 respectively. Candida albicans infection was not found on the skin at. the back or head of animals with hyperkeratosis. One healthy animal was positive for Candida albicans. Some animals had a brown staining at the periocular regioni of the sampled animals with brown staining at the periocular region, all findings were positive for Candida albicans. Other infections found were Candida humicola and Trichosporon spp. In connection with histological examination Candida parapsilosis was found. The underlying cause of hyperkeratosis remains unknown. Hyperkeratosis is not associated with Candida albicans infection.
description: Scandinavian Journal of Laboratory Animal Sciences, Vol. 25 No. 4 (1998)
Monitoring of Rat Colonies for Antibodies to CAR Bacillus
Creators: name: Thuis, H C W
name: Boot, R
Publisher: name: Scandinavian Journal of Laboratory Animal Sciences
Year: 2019

description: The cilia associated respiratory (CAR) bacillus is a respiratory pathogenic bacterium of rats and other species of animal. We determined by enzymelinked immunosorbent assay (ELISA) antibudies t0 CAR bacillus antigen in sera from 20 colonies of rats. Six out of 10 Mycoplasma pulmoms ELISA positive experimental colonies contained CAR bacillus seropositive rats, comprising 26 out of 45 (58 %) samples. CAR bacillus infection was not diagnosed by ELISA in 183 samples from 10 M. pulmonis free SPF-rat breeding colonies.
description: Scandinavian Journal of Laboratory Animal Sciences, Vol. 25 No. 4 (1998)
Dynamics and polarization of superparamagnetic chiral nanomotors in a rotating magnetic field
Creators: name: Morozov, Konstantin I.
name: Leshansky, Alexander M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Externally powered magnetic nanomotors are of particular interest due to the potential use for \emph{in vivo} biomedical applications. Here we develop a theory for dynamics and polarization of recently fabricated superparamagnetic chiral nanomotors powered by a rotating magnetic field. We study in detail various experimentally observed regimes of the nanomotor dynamic orientation and propulsion and establish the dependence of these properties on polarization and geometry of the propellers. Based on the proposed theory we introduce a novel "steerability" parameter $γ$ that can be used to rank polarizable nanomotors by their propulsive capability. The theoretical predictions of the nanomotor orientation and propulsion speed are in excellent agreement with available experimental results. Lastly, we apply slender-body approximation to estimate polarization anisotropy and orientation of the easy-axis of superparamagnetic helical propellers.
description: submitted for publicaiton
Effects of cage type and gnawing blocks on weight gain, organ weights and open-field behaviour in wistar rats
Creators: name: Eskola, Satu
name: Kaliste-Korhonen, Eila
Publisher: name: Scandinavian Journal of Laboratory Animal Sciences
Year: 2019

description: Two separate experiments were conducted to study the environmental enrichment value of aspen gnawing blocks in solid bottom cages with bedding '(SBC) and in grid floor cages without bedding (GFC), and the effects of housing environments on the physiology and behaviour of male outbred Wistar rats (n=90). Animals were housed in groups of 3 from weaning until the age of 8-12 weeks. The behaviour of animals in the first experiment was tested in five minute open-field tests at the age of 8 and 12 weeks. Rats gnawed blocks about four times more in GFCs than in SBCs (p<0.01). In the first experiment, animals housed in GFCs had heavier adrenal glands (p<0.001) but lower serum corticosterone concentrations (p<0.01) and their weight gain was greater than animals housed in SBCS (p<0.000). The presence of blocks in cages decreased the weight gain in both cage types (p<0 001) In the first open-field test, the animals without blocks in both cage types decreased their activity in the central area during the last 2.5 min of the test (p<0.01). The similar effect of blocks was also seen in animals later transferred into GFCs (p<0.05). These rats without blocks were also less active in the periphery (p<0.01) and had more standing alert behaviour (p<0.01) than animals with gnawing blocks. In both open-field tests, rats housed in SBCs showed more grooming behaviour than animals in GFCs (p<0.05). In the second experiment. animals in GFCs had again enlarged adrenals (p<0.05) and their brown adipose tissue weights were slightly increased (p<0.05) Altogether, SBC as a living environment resulted in lighter animals with smaller adrenals. but higher serum eortieosterone concentrations. In the openfield, blocks seemed to result in more active and less timid animals and antagonize the effects of housing in GFCs. Aspen gnawing blocks can be recommended as enrichment objects especially in GFCs.
description: Scandinavian Journal of Laboratory Animal Sciences, Vol. 25 No. 4 (1998)
Hořava-Lifshitz $F(\bar{R})$ theories and the Swampland
Creators: name: Garcia-Compean, H.
name: Mata-Pacheco, D.
name: Zapata, L.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The compatibility between the de Sitter Swampland conjecture and Hořava--Lifshitz $F(\bar{R})$ theories with a flat FLRW metric is studied. We first study the standard $f(R)$ theories and show that the only way in which the dS conjecture can be made independent of $R$ is by considering a power law of the form $f(R)\sim R^γ$. The conjecture and the consistency of the theory puts restrictions on $γ$ to be greater but close to one. For $F(\bar{R})$ theories described by its two parameters $λ$ and $μ$, we use the equations of motion to construct the function starting with an ansatz for the scale factor in the Jordan frame of the power law form. By performing a conformal transformation on the three metric to the Einstein frame, we can obtain an action of gravity plus a scalar field by relating the parameters of the theory. The non-projectable and projectable cases are studied and the differences are outlined. The obtained $F(\bar{R})$ function consists of terms of the form $\bar{R}^γ$ with the possibility of having negative power terms. The dS conjecture leads to inequalities for the $λ$ parameter; in both versions, it becomes restricted to be greater but close to $1/3$. We can also study the general case in which $μ$ and $λ$ are considered as independent. The obtained $F$ function has the same form as before. The consistency of the theory and the dS conjecture lead to a set of inequalities on both parameters that are studied numerically. In all cases, $λ$ is restricted by $μ$ around $1/3$, and we obtain $λ\to1/3$ if $μ\to0$. We consider the $f(R)$ limit $μ,λ\to 1$ and we obtain consistent results. Finally, we study the case of a constant Hubble parameter. The dS conjecture can be fulfilled by restricting the parameters of the theory; however, the constraint makes this compatibility exclusive to these kinds of theories.
description: 34 pages, 6 figures. All sections were improved. Subsection 4.5 added. References added
The Törneby Primate Facility Optimisation of housing conditions for Rhesus Macaques in Sweden
Creators: name: Guhad, Faisal
name: Augustsson, Hanna
name: Hau, Jann
Publisher: name: Scandinavian Journal of Laboratory Animal Sciences
Year: 2019

description: No abstract available
description: Scandinavian Journal of Laboratory Animal Sciences, Vol. 25 No. 4 (1998)
Additional file 1 of Gender differences in managers’ attitudes towards employees with depression: a cross-sectional study in Sweden
Creators: name: Mangerini, Ilaria
name: Bertilsson, Monica
name: Rijk, Angelique De
name: Hensing, Gunnel
Publisher: name: figshare
Year: 2020
Subjects: subject: Biotechnology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1 Appendix. Crude and adjusted odds ratio (OR) with 95% confidence interval (CI) for low negative attitudes compared with high negative attitudes in Swedish managers (N = 2663 of which 1762 were men and 901 were women): results for the covariates of binary logistic regression analyses, 2018.
Revisiting the Gamow Factor of Reactions on Light Nuclei
Creators: name: Hwang, Eunseok
name: Ko, Heamin
name: Heo, Kyoungsu
name: Cheoun, Myung-Ki
name: Jang, Dukjae
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Theory (nucl-th)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: This study provides an improved understanding of the penetration probabilities (PPs) in nuclear reactions of light nuclei by correcting the assumptions used in the conventional Gamow factor. The Gamow factor effectively describes the PP in nuclear reactions based on two assumptions: low particle energy than the Coulomb barrier and neglecting the dependence of nuclear interaction potential. However, we find that the assumptions are not valid for light nuclei. As a result of a calculation that excludes the assumptions, we obtain the PP that depends on the nuclear interaction potential depth for the light nuclei. For the potential depth fitted by the experimental fusion cross-section, we present that PPs of light nuclei (D+D, D+T, D+$^3$He, p+D, p+$^6$Li, and p+$^7$Li) become higher than the conventional one near the Coulomb barrier. We also discuss the implications of the modified PP, such as changes in the Gamow peak energy, which determine the measurement of the energy range of the nuclear cross-section in experiments, and the electron screening effect.
Strong pinning of propagation fronts in adverse flow
Creators: name: Gueudré, Thomas
name: Dubey, Awadhesh Kumar
name: Talon, Laurent
name: Rosso, Alberto
Publisher: name: arXiv
Year: 2014
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Reaction fronts evolving in a porous medium exhibit a rich dynamical behaviour. In presence of an adverse flow, experiments show that the front slows down and eventually gets pinned, displaying a particular sawtooth shape. Extensive numerical simulations of the hydrodynamic equations confirm the experimental observations. Here we propose a stylized model, predicting two possible outcomes of the experiments for large adverse flow: either the front develops a sawtooth shape, or it acquires a complicated structure with islands and overhangs. A simple criterion allows to distinguish between the two scenarios and its validity is reproduced by direct hydrodynamical simulations. Our model gives a better understanding of the transition and is relevant in a variety of domains, when the pinning regime is strong and only relies on a small number of sites.
description: 5 pages, 4 figures
Teleportation of quantum coherence
Creators: name: Sohail
name: Pati, Arun K
name: Aradhya, Vijeth
name: Chakrabarty, Indranil
name: Patro, Subhasree
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate whether it is possible to teleport the coherence of an unknown quantum state from Alice to Bob by communicating a lesser number of classical bits in comparison to what is required for teleporting an unknown quantum state. We find that we cannot achieve perfect teleportation of coherence with one bit of classical communication for an arbitrary qubit. However, we find that if the qubit is partially known, i.e., chosen from the equatorial and polar circles of the Bloch sphere, then teleportation of coherence is possible with the transfer of one cbit of information when we have maximally entangled states as a shared resource. In the case of the resource being a non-maximally entangled state, we can teleport the coherence with a certain probability of success. In a general teleportation protocol for coherence, we derive a compact formula for the final state at Bob's lab in terms of the composition of the completely positive maps corresponding to the shared resource state and joint POVM performed by Alice on her qubit and the unknown state. Using this formula, we show that teleportation of the coherence of a partially known state with real matrix elements is possible perfectly with the help of a maximally entangled state as a resource. Furthermore, we explore the teleportation of coherence with the Werner states and show that even when the Werner states become separable, the amount of teleported coherence is non-zero, implying the possibility of teleportation of coherence without entanglement.
description: 10 pages, no figures
Additional file 1 of The epidemiology of postnatal depression in Ethiopia: a systematic review and meta-analysis
Creators: name: Duko, Bereket
name: Dereje Wolde
name: Yonas Alemayehu
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1: Epidemiology of postnatal depression in Ethiopia: a systematic review and meta-analysis (Pre-designed protocol).
Before the first supernova: combined effects of HII regions and winds on molecular clouds
Creators: name: Dale, J. E.
name: Ngoumou, J.
name: Ercolano, B.
name: Bonnell, I. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We model the combined effects of photoionization and momentum--driven winds from O--stars on molecular clouds spanning a parameter space of initial conditions. The dynamical effects of the winds are very modest. However, in the lower--mass clouds, they influence the morphologies of the HII regions by creating 10pc--scale central cavities.\\ The inhomogeneous structures of the model GMCs make them highly permeable to photons, ionized gas and supernova ejecta, and the leaking of ionized gas in particular strongly affects their evolution, reducing the effectiveness of feedback. Nevertheless, feedback is able to expel large fractions of the mass of the lower escape--velocity clouds. Its impact on star formation is more modest, decreasing final star formation efficiencies by 10--20$\%$, and the rate of change of the star formation efficiency per freefall time by about one third. However, the clouds still form stars substantially faster than observed GMCs.
description: 21 pages, 19 figures, accepted for publication in MNRAS
Third quantization of open quantum systems: new dissipative symmetries and connections to phase-space and Keldysh field theory formulations
Creators: name: McDonald, Alexander
name: Clerk, Aashish A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The connections between standard theoretical tools used to study open quantum systems can sometimes seem opaque. Whether it is a Lindblad master equation, the equation of motion for the Wigner function or a dissipative Keldysh action, features evident in one formalism are often masked in another. Here, we reformulate the technique of third quantization in a way that explicitly connects all three methods. We first show that our formulation reveals a fundamental dissipative symmetry present in all quadratic bosonic or fermionic Lindbladians. This symmetry can then be used to easily diagonalize these models, and provides a intuitive way to demonstrate the separation of dissipation and fluctations in linear systems. For bosons, we then show that the Wigner function and the characteristic function can be thought of as ''wavefunctions'' of the density matrix in the eigenbasis of the third-quantized superoperators we introduce. The field-theory representation of the time-evolution operator in this basis is then the Keldysh path integral. To highlight the utility of our approach, we apply our version of third quantization to a dissipative non-linear oscillator, and use it to obtain new exact results.
Comparación de las predicciones de tres modelos de transporte de sedimento contra datos de campo, en la barra del Estero de Punta Banda, B.C. /
Creators: name: Blanco Betancourt, Jose Rafael
Publisher: name: Universidad Autónoma de Baja California.
Year: 2022
Subjects: subject: Transporte litoral||Modelos matemáticos||Sedimentos||Transporte de Costas||Ingeniería||Desarrollo portuario||Tesis
subject: GC380.2.S4 B53 1993

description: Con información de altura de ola, ángulo de incidencia y velocidad de la correitne litoral, se alimentaron los modelos CERC (1984), Komar e Inman(1970) y Kraus (1982).
Numerical Simulations of a Spin Dynamics Model Based on a Path Integral Approach
Creators: name: Nussle, Thomas
name: Nicolis, Stam
name: Barker, Joseph
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Inspired by path integral molecular dynamics, we build a spin model, in terms of spin coherent states, from which we can compute the quantum expectation values of a spin in a constant magnetic field, at finite temperature. This formulation facilitates the description of a discrete quantum spin system in terms of a continuous classical model and recasts the quantum spin effects within the framework of path integrals in a double $1/s$ and $\hbar s$ expansion, where $s$ is the magnitude of the spin. In particular, it allows for a much more direct path to the low- and high-temperature limits of the quantum system and to the definition of effective classical Hamiltonians that describe both thermal and quantum fluctuations. In this formalism, the quantum properties of the spins emerge as an effective anisotropy. We use atomistic spin dynamics to sample the path integral, calculate thermodynamic observables and show that our effective classical models can reproduce the thermal expectation values of the quantum system within temperature ranges relevant for studying magnetic ordering.
Direct measurement of the temperature dependence of the magnetic penetration depth in Ba(Fe$_{1-x}$Ni$_x$)$_2$As$_2$ superconductors
Creators: name: Rey, R. I.
name: Ramos-Álvarez, A.
name: Mosqueira, J.
name: Salem-Sugui, S.
name: Alvarenga, A. D.
name: Luo, H. -Q.
name: Lu, X. -Y.
name: Zhang, R.
name: Vidal, F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The temperature dependence of the in-plane magnetic penetration depth $λ_{ab}$ of Ba(Fe$_{1-x}$Ni$_x$)$_2$As$_2$ single crystals is determined directly from the shielding magnetic susceptibility, measured in the Meissner region with the field parallel to the ab layers. The doping levels studied cover the underdoped, optimally-doped and overdoped regimes. At temperatures below 0.5Tc a well-defined power-law behavior $λ_{ab}(T)-λ_{ab}(0)=AT^n$ (with n approximately 2.5) is observed. At lower temperatures (T<0.3Tc) the data are still consistent with n=2 and $A\propto T_c^{-3}$, as predicted by the strong pair-breaking scenario proposed by Gordon et al., Phys. Rev. B 81, 180501(R) (2010). The temperature dependence of the superfluid density $ρ_s\proptoλ_{ab}^{-2}$ presents a marked positive curvature just below Tc which is a sign of two-gap superconductivity. The analysis of $ρ_s(T)$ in terms of a two-gap model allowed to estimate parameters like the in-band and inter-band couplings, the relative weight of each band, and their dependence with the doping level. A comparison with $ρ_s(T)$ data obtained by using other techniques in compounds with a similar composition is also presented.
description: 18 pages, including 6 figures and 2 tables
Haematology in mice after weekly blood sampling for 7 weeks
Creators: name: Svendsen, O
name: Andersen, H V
name: Jorgensen, Damm
name: Klastrup, K S
Publisher: name: Scandinavian Journal of Laboratory Animal Sciences
Year: 2019

description: No abstract available
description: Scandinavian Journal of Laboratory Animal Sciences, Vol. 25 No. 1 (1998)
Additional file 1 of A genome-wide scan study identifies a single nucleotide substitution in MC1R gene associated with white coat colour in fallow deer (Dama dama)
Creators: name: Reiner, Gerald
name: Weber, Tim
name: Nietfeld, Florian
name: Fischer, Dominik
name: Wurmser, Christine
name: Fries, Ruedi
name: Willems, Hermann
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Supplementary Table S1. Genotype-phenotype associations in white and brown fallow deer for all tested single nucleotide variants.
An Integer Programming Formulation of the Minimum Common String Partition problem
Creators: name: Ferdous, S. M.
name: Rahman, M. Sohel
Publisher: name: arXiv
Year: 2014
Subjects: subject: Discrete Mathematics (cs.DM)
subject: Combinatorics (math.CO)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We consider the problem of finding a minimum common partition of two strings (MCSP). The problem has its application in genome comparison. MCSP problem is proved to be NP-hard. In this paper, we develop an Integer Programming (IP) formulation for the problem and implement it. The experimental results are compared with the previous state-of-the-art algorithms and are found to be promising.
description: arXiv admin note: text overlap with arXiv:1401.4539
Improved method for vaginal plug detection in rats
Creators: name: Voipio, Hanna-Marja
name: Nevalainen, Timo
Publisher: name: Scandinavian Journal of Laboratory Animal Sciences
Year: 2019

description: Time mating of rodents is essential in many experimental procedures. The presence of the vaginal plug is frequently used as an indicator to confirm that mating has occurred. In rats, vaginal plugs are often deep and therefore difficult to detect by vulvar inspection. This study was carried out to assess the applicability of a human otoscope for detection of deep plugs, and the predictive value of plugs for pregnancy. A total of 132 Wistar female rats in proestrous were mated and examined for vaginal plugs on the next morning with an otoscope. All the plugs were located deep inside the vagina and could not be seen without the scope. The pregnancy rate of all females in proestrous was 69.7 %. Of all females, 72.7% had a vaginal plug and the positive predictive value of plug detection was 91.7 %. The sensitivity of the vaginal plug method was 95.7 % and specificity 80.0%. In conclusion, this study shows that detection of plugs has value for predicting pregnancies in rats. The method devised is quick, straightforward and painless to the animals and it is easily taught to technicians.
description: Scandinavian Journal of Laboratory Animal Sciences, Vol. 25 No. 1 (1998)
Parallel Hybrid Networks: an interplay between quantum and classical neural networks
Creators: name: Kordzanganeh, Mo
name: Kosichkina, Daria
name: Melnikov, Alexey
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Quantum neural networks represent a new machine learning paradigm that has recently attracted much attention due to its potential promise. Under certain conditions, these models approximate the distribution of their dataset with a truncated Fourier series. The trigonometric nature of this fit could result in angle-embedded quantum neural networks struggling to fit the non-harmonic features in a given dataset. Moreover, the interpretability of neural networks remains a challenge. In this work, we introduce a new, interpretable class of hybrid quantum neural networks that pass the inputs of the dataset in parallel to 1) a classical multi-layered perceptron and 2) a variational quantum circuit, and then the outputs of the two are linearly combined. We observe that the quantum neural network creates a smooth sinusoidal foundation base on the training set, and then the classical perceptrons fill the non-harmonic gaps in the landscape. We demonstrate this claim on two synthetic datasets sampled from periodic distributions with added protrusions as noise. The training results indicate that the parallel hybrid network architecture could improve the solution optimality on periodic datasets with additional noise.
description: 12 pages, 10 figures
Rindler Modified Schwarzschild Geodesics
Creators: name: Halilsoy, M.
name: Gurtug, O.
name: Mazharimousavi, S. Habib
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The mysterious attractive constant radial force acted in the past on Pioneer spacecrafts - the so-called Pioneer anomaly - is considered within the context of Rindler acceleration. As an idea this is tempting since it is reminiscent of the cosmological constant. Fortunately the anomalous force acts radially toward the sun so that it differs from the mission of a cosmological constant. Without resorting to the physical source responsible for such a term we investigate the modified Schwarzschild geodesics. The Rindler acceleration naturally affects all massive / massless particle orbits. Stable orbits may turn unstable and vice versa with a finely-tuned acceleration parameter. The overall role of the extra term, given its attractive feature is to provide confinement in the radial geodesics.
description: 15 pages, 13 figures
Microbiological quality control of a cage washing machine by means of a thin film culture system (PetrifilmTM)
Creators: name: Andersen, H E A
name: Fosse, K
name: Fosse, R T
Publisher: name: Scandinavian Journal of Laboratory Animal Sciences
Year: 2019

description: Washing machine effectiveness is dependent on treatment of cage surface with hot water containing detergent. The temperature of the washing chamber will not reflect the degree of treatment of each individual cage. Bacteriological testing of cage surface will give a true indication of residual contamination. This study describes the use of rehydratable contact films to harvest and culture residual bacteria. The method registers numbers of colonies retrieved from the surface. It does not type the bacteria and is as such a non-specific method. The study reveals that the machine in question was effective and that no bacteria were found following a normal cycle. A machine breakdown was demonstrated before the mechanical cause was uncovered.
description: Scandinavian Journal of Laboratory Animal Sciences, Vol. 25 No. 2 (1998)
Ab initio calculation of the spectrum of Feshbach resonances in NaLi + Na collisions
Creators: name: Karman, Tijs
name: Gronowski, Marcin
name: Tomza, Michal
name: Park, Juliana J.
name: Son, Hyungmok
name: Lu, Yu-Kun
name: Jamison, Alan O.
name: Ketterle, Wolfgang
Publisher: name: arXiv
Year: 2023
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We present a combined experimental and theoretical study of the spectrum of magnetically tunable Feshbach resonances in NaLi $(a^3Σ^+)$ $+$ Na collisions. In the accompanying paper, we observe experimentally 8 and 17 resonances occur between $B=0$ and $1400$~G in upper and lower spin-stretched states, respectively. Here, we perform ab initio calculations of the NaLi $+$ Na interaction potential and describe in detail the coupled-channel scattering calculations of the Feshbach resonance spectrum. The positions of the resonances cannot be predicted with realistic uncertainty in the state-of-the-art ab initio potential, but our calculations yield a typical number of resonances that is in near-quantitative agreement with experiment. We show that the main coupling mechanism results from spin-rotation and spin-spin couplings in combination with the anisotropic atom-molecule interaction. The calculations furthermore explain the qualitative difference between the numbers of resonances in either spin state.
Reduction of Hochschild cohomology over algebras finite over their center
Creators: name: Shaul, Liran
Publisher: name: arXiv
Year: 2014
Subjects: subject: Rings and Algebras (math.RA)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: Primary: 16E40

description: We borrow ideas from Grothendieck duality theory to noncommutative algebra, and use them to prove a reduction result for Hochschild cohomology for noncommutative algebras which are finite over their center. This generalizes a result over commutative algebras by Avramov, Iyengar, Lipman and Nayak.
description: 9 pages, comments are welcome!
Additional file 1 of Knowledge self-monitoring, efficiency, and determinants of self-confidence statement in multiple choice questions in medical students
Creators: name: Tabibzadeh, Nahid
name: Mullaert, Jimmy
name: Zafrani, Lara
name: Balagny, Pauline
name: Frija-Masson, Justine
name: Marin, Stéphanie
name: Lefort, Agnès
name: Vidal-Petiot, Emmanuelle
name: Flamant, Martin
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: Science Policy

description: Additional file 1: Supplementary Table S1. Tests Characteristics.
Splenic pigment deposition in C57BL mice — an age-related phenomenon?
Creators: name: Kristiansen, Eva
Publisher: name: Scandinavian Journal of Laboratory Animal Sciences
Year: 2019

description: Pigment deposition in the spleen, seen as dark brown discolouration predominantly in the cranial part of the spleen, is a common finding in many mice of C57BL sublines. In a series of studies with C57BL mice the incidence of mice with this condition were observed to be reduced with age. The staining properties of the pigment observed suggested that the pigment predominantly consisted of melanin. The pathogenmis of spleen pigmentation is still unclear. To further shed light on the mechanism behind the present observation of an age—related reduction in splenic pigmentation in mice of C57BL sublines more advanced studies is needed.
description: Scandinavian Journal of Laboratory Animal Sciences, Vol. 25 No. 2 (1998)
A comparison of three heuristics to choose the variable ordering for CAD
Creators: name: Huang, Zongyan
name: England, Matthew
name: Wilson, David
name: Davenport, James H.
name: Paulson, Lawrence C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Symbolic Computation (cs.SC)
subject: FOS: Computer and information sciences
subject: I.1.2
subject: 68W30, O3C10

description: Cylindrical algebraic decomposition (CAD) is a key tool for problems in real algebraic geometry and beyond. When using CAD there is often a choice over the variable ordering to use, with some problems infeasible in one ordering but simple in another. Here we discuss a recent experiment comparing three heuristics for making this choice on thousands of examples.
Benchmarking scalability of stream processing frameworks deployed as microservices in the cloud
Creators: name: Henning, Sören
name: Hasselbring, Wilhelm
Publisher: name: arXiv
Year: 2023
Subjects: subject: Software Engineering (cs.SE)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Context: The combination of distributed stream processing with microservice architectures is an emerging pattern for building data-intensive software systems. In such systems, stream processing frameworks such as Apache Flink, Apache Kafka Streams, Apache Samza, Hazelcast Jet, or the Apache Beam SDK are used inside microservices to continuously process massive amounts of data in a distributed fashion. While all of these frameworks promote scalability as a core feature, there is only little empirical research evaluating and comparing their scalability. Objective: The goal of this study to obtain evidence about the scalability of state-of-the-art stream processing framework in different execution environments and regarding different scalability dimensions. Method: We benchmark five modern stream processing frameworks regarding their scalability using a systematic method. We conduct over 740 hours of experiments on Kubernetes clusters in the Google cloud and in a private cloud, where we deploy up to 110 simultaneously running microservice instances, which process up to one million messages per second. Results: All benchmarked frameworks exhibit approximately linear scalability as long as sufficient cloud resources are provisioned. However, the frameworks show considerable differences in the rate at which resources have to be added to cope with increasing load. There is no clear superior framework, but the ranking of the frameworks depends on the use case. Using Apache Beam as an abstraction layer still comes at the cost of significantly higher resource requirements regardless of the use case. We observe our results regardless of scaling load on a microservice, scaling the computational work performed inside the microservice, and the selected cloud environment. Moreover, vertical scaling can be a complementary measure to achieve scalability of stream processing frameworks.
description: 19 pages
Ovary transplantation method resulting in high reproductive performance in mice
Creators: name: Lavebratt, Catharina
name: Inzunza, José
name: Petersson, Susanna
name: Iwarsson, Krister
name: Schalling, Martin
name: Ährlund-Richter, Lars
Publisher: name: Scandinavian Journal of Laboratory Animal Sciences
Year: 2019

description: There are mutant and transgenic mouse strains which lack the ability to breed, but where the females have functional ovaries. Ovary transplantation is an important tool for maintaining and producing crosses with these non-breeding strains. We have evaluated an ovary transplantation method by transplanting ovaries from females belonging to a non-reproduetive BALB/cByJ mutant mouse strain, All transplanted mice, 10 BALB/c.C57BL/6By, produced offspring and 94% of the progeny originated from the transplanted ovaries. The mean litter size and the mating period needed for productive mating to occur were similar to what is observed for corresponding control mice.
description: Scandinavian Journal of Laboratory Animal Sciences, Vol. 25 No. 2 (1998)
title: Πειραματικό σύστημα μέτρησης θερμοκρασίας χρώματος φωτισμού και RGB τριχρωματικών συντελεστών βασισμένο σε Arduino
title: Arduino-based experimental lighting color temperature and RGB trichromatic coefficient measurement system
titleType: AlternativeTitle
Creators: name: Τζουανόπουλος, Αλέξανδρος
name: Παπαδημητρίου, Ιωάννα Μαρία
name: Βικάτος, Ανδρέας Στέφανος
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2023
Subjects: Arduino
RGB
Τριχρωματικές τιμές
Χρώμα
Θερμοκρασία
Φως
Φωτισμός
Προγραμματισμός
CMYK
Ορατό Φως
Πειραματατικό σύστημα
Αισθητήρας χρώματος

description: Σκοπός της παρούσας πτυχιακής είναι η πραγματοποίηση μιας κατασκευής βασισμένη στο σύστημα Arduino η οποία συνδέεται με έναν αισθητήρα κατάλληλο για την αναγνώριση χρωμάτων . Η εργασία αποτελείται από το κατασκευαστικό μέρος που χρειάζεται να γίνει η ένωση των καλωδίων με το ARDUINO, την λάμπα led και τον αισθητήρα αλλά και από την πραγματοποίηση ενός προγραμματισμού με τον οποίο το Arduino θα είναι ικανό να διαβάζει και να μας υποδεικνύει τις τιμές που ζητάμε αλλά θα αναπαράγει επίσης μέσω του LED το κάθε χρώμα που του υποδεικνύουμε. Επιπλέον μας έχει ζητηθεί να ορίσουμε τις τριχρωματικές τιμές, την θερμοκρασια χρώματος και την ένταση φωτεινότητας lux στο κάθε χρώμα. Στο θεωρητικό κομμάτι της εργασίας, ανάλογα με το κεφάλαιο θα αναφερθούμε σε κάποιες θεωρίες οι οποίες θα βοηθήσουν στην κατανόηση της όλης κατασκευής. Αυτές είναι η τριχρωματική θεωρία, η θεωρία και ο τύπος του Planck, η ανάλυση της θεωρίας του φωτός ανάλογα με το μήκος κύματος, τα μήκη κυμάτων των χρωμάτων αλλά και το μήκος κύματος του ορατού φάσματος. Θα γίνει μια μικρή αναφορά στη λειτουργία του ανθρώπινου οφθαλμού σε σχέση με το ορατό φάσμα αλλά και στην αντίληψη των χρωμάτων. Σημαντικό κεφάλαιο είναι η επεξήγηση των χρωμάτων και την θερμοκρασία τους σε Kelvin, ποιά είναι τα βασικά και πώς από αυτά πως δημιουργούνται τα δευτερεύοντα, η σημασία του RGB, του sRGB καθώς και γιατί δημιουργήθηκε η Διεθνής Επιτροπή Φωτισμού.
Excited electronic states of Sr$_2$: ab initio predictions and experimental observation of the $2^1Σ^{+}_{u}$ state
Creators: name: Szczepkowskia, Jacek
name: Gronowski, Marcin
name: Grochola, Anna
name: Jastrzebski, Włodzimierz
name: Tomza, Michał
name: Kowalczyk, Paweł
Publisher: name: arXiv
Year: 2023
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Despite its apparently simple nature with four valence electrons, the strontium dimer constitutes a challenge for modern electronic structure theory. Here we focus on excited electronic states of Sr$_2$, which we investigate theoretically up to 25000 cm$^{-1}$ above the ground state, to guide and explain new spectroscopic measurements. In particular, we focus on potential energy curves for the $1^1Σ^{+}_{u}$, $2^1Σ^{+}_{u}$, $1^1Π_{u}$, $2^1Π_{u}$, and $1^1Δ_{u}$ states computed using several variants of advanced \textit{ab initio} methods to benchmark them. In addition, a new experimental study of the excited $2^1Σ^{+}_{u}$ state using polarisation labelling spectroscopy is presented, which extends knowledge of this state to high vibrational levels, where perturbation by higher electronic states is observed. The available experimental observations are compared with the theoretical predictions and help to assess the accuracy and limitations of employed theoretical models. The present results pave the way for future more accurate theoretical and experimental spectroscopic studies.
description: 11 pages, 5 figures
Medical students’ view on the use of animals in biomedical research
Creators: name: Hagelin, Joakim
name: Carlsson, Hans-Erik
name: Hau, Jann
Publisher: name: Scandinavian Journal of Laboratory Animal Sciences
Year: 2019

description: The purpose of this survey was to describe medical students’ views of animals and the use of animals in biomedical research. The three explanation variables used were gender, age and year of study. A vast majority (95%) of the respondents considered that animals have rights. Possible explanations to this result could be that the term has been used by the media during a relatively long period. which has made the expression common. and the students do not consider what it philosophically and logically infers to have rights. Younger students and female students seemed to value animals higher and had a more restricted view on animals and animal research compared to other groups. More than 95% of the respondents were positive toward the possibility to use animals for scientific purposes. There was a relationship between commitment to environmental issues and caring about animal rights. A conclusion of the present study. is that more information about laboratory animals and biomedical research should be made available to the students. as well as to the general public.
description: Scandinavian Journal of Laboratory Animal Sciences, Vol. 24 No. 3 (1997)
Additional file 1 of Global prevalence of congenital heart disease in school-age children: a meta-analysis and systematic review
Creators: name: Yingjuan Liu
name: Chen, Sen
name: Zühlke, Liesl
name: Babu-Narayan, Sonya V.
name: Black, Graeme C.
name: Mun-Kit Choy
name: Ningxiu Li
name: Keavney, Bernard D.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Additional file 1. Review protocol and supplementary tables for inclusion and exclusion criteria and classification of severe CHDs.
Copulatory behavior of male house musk shrews (Suncus murinus)
Creators: name: Saito, Toru R
name: Hashimoto, Haruo
name: Moritani, Naoki
name: Taniguchi, Kazumi
name: Takahashi, Kazuaki W
Publisher: name: Scandinavian Journal of Laboratory Animal Sciences
Year: 2019

description: The copulatory behavior in male house musk shrews (Jic: SUN strain) aged 10-12 months was observed under the light (09:00-11:00) and dark (20:00-22:00) periods. The females of same strain were used as stimulus in copulatory behavior tests. Two-hour test sessions were recorded. All 14 males showed one ejaculation after a few intromissions within 2 hours. These values are similar to that of male guinea pigs. Comparing behavioral frequencies and latencies for males observed in the light and dark periods, there were no significant differences between two groups. The present study is the first to clearly establish the pattern of copulatory behavior in male house musk shrews.
description: Scandinavian Journal of Laboratory Animal Sciences, Vol. 24 No. 3 (1997)