cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quark Matter in the NJL Model with a Vector Interaction and the Structure of Hybrid Stars
Creators: name: Alaverdyan, G. B.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The properties of hadron-quark hybrid stars are studied when the quark phase is described in terms of a local SU(3) Nambu--Jona-Lasinio (NJL) model taking into account the contribution of the vector and axial-vector interaction between the quarks, and the hadronic phase, in the relativistic mean field (RMF) model. For different values of the vector coupling constant $G_V$, the equations of state of the quark matter are calculated and the parameters of the hadron-quark phase transition are determined under the assumption that the phase transition takes place in accordance with Maxwell's construction. It is shown that for a larger vector coupling constant, the equation of state of the quark matter will be "stiffer" and the coexistence pressure $P_0$ of the phases will be greater. Using the resulting hybrid equations of state, the TOV equations are integrated numerically and the mass and radius of the compact star are determined for different values of the central pressure $P_c$. It is shown that when $G_V$ is larger, the maximum mass of the compact star will be larger and thereby, the radius of the configuration with maximum mass will be smaller. Questions of the stability of hybrid stars are also discussed. It is shown that in terms of the model examined here, for all values of the vector coupling constant, a hybrid star with an infinitely small quark core is stable. These results are compared with recent measurements of the mass and radius of the pulsars PSR J0030+0451 and PSR J0740+6620, carried out at the International Space Station with the NASA's Neutron star Interior Composition Explorer (NICER) X-ray telescope. A comparison of the theoretical results with observational data does not exclude the possibility of quark deconfinement in the interiors of compact stars.
description: 13 pages, 4 figures, 1 table
Dissecting simulated disc galaxies - II. The age-velocity relation
Creators: name: Martig, M.
name: Minchev, I.
name: Flynn, Christopher
Publisher: name: Swinburne
Year: 2024

description: We study the relation between stellar ages and vertical velocity dispersion (the age-velocity relation, or AVR) in a sample of seven simulated disc galaxies. In our simulations, the shape of the AVR for stars younger than 9 Gyr depends strongly on the merger history at low redshift, with even 1:10-1:15 mergers being able to create jumps in the AVR (although these jumps might not be detectable if the errors on stellar ages are of the order of 30 per cent). For galaxies with a quiescent history at low redshift, we find that the vertical velocity dispersion rises smoothly for ages up to 8-9 Gyr, following a power law with a slope of ∼0.5, similar to what is observed in the solar neighbourhood by the Geneva-Copenhagen Survey. For these galaxies, we show that the slope of the AVR is not imprinted at birth, but is the result of subsequent heating. By contrast, in all our simulations, the oldest stars form a significantly different population, with a high velocity dispersion. These stars are usually born kinematically hot in a turbulent phase of intense mergers at high redshift, and also include some stars accreted from satellites. This maximum in σz is strongly decreased when age errors are included, suggesting that observations can easily miss such a jump with the current accuracy of age measurements.
Cephaloziella pygmaea Vana, Phytotaxa
Creators: name: Söderström, Lars
name: Hagborg, Anders
name: Konrat, Matt Von
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Marchantiophyta
Jungermanniopsida
Jungermanniales
Cephaloziellaceae
Cephaloziella
Cephaloziella pygmaea

description: Cephaloziella pygmaea (Spruce) Váňa,
Phytotaxa 183 (4): 290, 2014 (see Váňa et al. 2014c). BASIONYM: Cephalozia pygmaea Spruce, Cephalozia: 69, 1882 (see Spruce 1882).
description: Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2016, Early Land Plants Today: Index of Liverworts & Hornworts 2013 - 2014, pp. 133-185 in Phytotaxa 269 (3) on page 137, DOI: 10.11646/phytotaxa.269.3.1, http://zenodo.org/record/4779693
The Magellan uniform survey of damped Lyman α systems-II. Paucity of strong molecular hydrogen absorption
Creators: name: Jorgenson, R. A.
name: Murphy, Michael
name: Thompson, R.
name: Carswell, R. F.
Publisher: name: Swinburne
Year: 2024
Subjects: classificationCode: 5101
subject: Astronomical sciences
classificationCode: 5109
subject: Space sciences

description: We present the first large, blind and uniformly selected survey for molecular hydrogen (H2) in damped Lyman α systems (DLAs) with moderate-to-high resolution spectra. 86 DLAs were searched for absorption in the many Lyman and Werner H2 transitions, with ≈79 per cent completeness for H2 column densities above N(H2) = 1017.5 cm−2 for an assumed Doppler broadening parameter b = 2 km s−1. Only a single strong H2 absorber was found - a system detected previously in Very Large Telescope/Ultraviolet and Visual Echelle Spectrograph spectra. Given our distribution of N(H2) upper limits, this ∼1 per cent detection rate is smaller than expected from previous surveys at 99.8 per cent confidence. Assuming the N(H2) distribution shape from previous surveys, our detection rate implies a covering factor of ∼1 per cent for N(H2) ≥ 1017.5 cm−2 gas in DLAs (<6 per cent at 95 per cent confidence). We obtained new Magellan/Magellan Echellette (MagE) spectra for 53 DLAs; 8 km s−1 resolution spectra were available for 27 DLAs. MagE's moderate resolution (≈71 km s−1) yields weaker N(H2) upper limits and makes them dependent on the assumed Doppler parameter. For example, half the (relevant) previous H2 detections have N(H2) ≥ 1018.1 cm−2, a factor of just 3 higher than our median upper limit. Nevertheless, several tests suggest our upper limits are accurate, and they would need to be increased by 1.8 dex to bring our detection rate within 95 per cent confidence of previous surveys.
Towards Psychologically-Grounded Dynamic Preference Models
Creators: name: Curmei, Mihaela
name: Haupt, Andreas
name: Hadfield-Menell, Dylan
name: Recht, Benjamin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Retrieval (cs.IR)
subject: Artificial Intelligence (cs.AI)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Designing recommendation systems that serve content aligned with time varying preferences requires proper accounting of the feedback effects of recommendations on human behavior and psychological condition. We argue that modeling the influence of recommendations on people's preferences must be grounded in psychologically plausible models. We contribute a methodology for developing grounded dynamic preference models. We demonstrate this method with models that capture three classic effects from the psychology literature: Mere-Exposure, Operant Conditioning, and Hedonic Adaptation. We conduct simulation-based studies to show that the psychological models manifest distinct behaviors that can inform system design. Our study has two direct implications for dynamic user modeling in recommendation systems. First, the methodology we outline is broadly applicable for psychologically grounding dynamic preference models. It allows us to critique recent contributions based on their limited discussion of psychological foundation and their implausible predictions. Second, we discuss implications of dynamic preference models for recommendation systems evaluation and design. In an example, we show that engagement and diversity metrics may be unable to capture desirable recommendation system performance.
description: In Sixteenth ACM Conference on Recommender Systems, September 18-23, 2022, Seattle, WA, USA, 14 pages
Cephaloziella uncinata var. mammillosa Damsh., Liverworts
Creators: name: Söderström, Lars
name: Hagborg, Anders
name: Konrat, Matt Von
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Marchantiophyta
Jungermanniopsida
Jungermanniales
Cephaloziellaceae
Cephaloziella
Cephaloziella uncinata
Cephaloziella uncinata var. mammillosa damsh.,

description: ** Cephaloziella uncinata var. mammillosa Damsh.,
Liverworts Greenland: 487, 2013, nom. inval. ICN Art. 40.7; herbarium not specified (see Damsholt 2013).
ORIGINAL MATERIAL: “S. Greenland, Kangikitsoq fj., mouth, 18: Tupaussat, delta juncture of Tupaussat valley and the valley to the west, near sea level, on damp, sheltered, S-facing recesses with, e.g. Lophozia sudetica, L. hatcheri, Cephaloziella aspericaulis (RMS & KD 82-1796)”.
description: Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2016, Early Land Plants Today: Index of Liverworts & Hornworts 2013 - 2014, pp. 133-185 in Phytotaxa 269 (3) on page 137, DOI: 10.11646/phytotaxa.269.3.1, http://zenodo.org/record/4779693
Success of Uncertainty-Aware Deep Models Depends on Data Manifold Geometry
Creators: name: Penrod, Mark
name: Termotto, Harrison
name: Reddy, Varshini
name: Yao, Jiayu
name: Doshi-Velez, Finale
name: Pan, Weiwei
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: I.2.6

description: For responsible decision making in safety-critical settings, machine learning models must effectively detect and process edge-case data. Although existing works show that predictive uncertainty is useful for these tasks, it is not evident from literature which uncertainty-aware models are best suited for a given dataset. Thus, we compare six uncertainty-aware deep learning models on a set of edge-case tasks: robustness to adversarial attacks as well as out-of-distribution and adversarial detection. We find that the geometry of the data sub-manifold is an important factor in determining the success of various models. Our finding suggests an interesting direction in the study of uncertainty-aware deep learning models.
Farfalle: parallel permutation-based cryptography
Creators: name: Bertoni, Guido
name: Daemen, Joan
name: Hoffert, Seth
name: Peeters, Michaël
name: Van Assche, Gilles
name: Van Keer, Ronny
Publisher: name: International Association for Cryptologic Research
Year: 2017
Subjects: pseudorandom function; permutation-based cryptography; Keccak

description: In this paper, we introduce Farfalle, a new permutation-based construction for building a pseudorandom function (PRF). The PRF takes as input a key and a sequence of arbitrary-length data strings, and returns an arbitrary-length output. It has a compression layer and an expansion layer, each involving the parallel application of a permutation. The construction also makes use of LFSR-like rolling functions for generating input and output masks and for updating the inner state during expansion. On top of the inherent parallelism, Farfalle instances can be very efficient because the construction imposes less requirements on the underlying primitive than, e.g., the duplex construction or typical block cipher modes. Farfalle has an incremental property: compression of common prefixes of inputs can be factored out. Thanks to its input-output characteristics, Farfalle is really versatile. We specify simple modes on top of it for authentication, encryption and authenticated encryption, as well as a wide block cipher mode. As a showcase, we present Kravatte, a very efficient instance of Farfalle based on Keccak-p[1600, nr] permutations and formulate concrete security claims against classical and quantum adversaries. The permutations in the compression and expansion layers of Kravatte have only 6 rounds apiece and the rolling functions are lightweight. We provide a rationale for our choices and report on software performance.
description: IACR Transactions on Symmetric Cryptology, Volume 2017, Issue 4
The density, the cosmic microwave background, and the proton-to-electron mass ratio in a cloud at redshift 0.9
Creators: name: Henkel, C.
name: Menton, K. M.
name: Murphy, Michael
name: Jethava, N.
name: Flambaum, Victor V.
name: Braatz, James A.
name: Muller, S.
name: Ott, J.
name: Mao, R. Q.
Publisher: name: Swinburne
Year: 2024

description: Based on measurements with the Effelsberg 100-m telescope, a multi-line study of molecular species is presented toward the gravitational lens system PKS 1830-211, which is by far the best known target to study dense cool gas in absorption at intermediate redshift. Determining average radial velocities and performing Large Velocity Gradient radiative transfer calculations, the aims of this study are (1) to determine the density of the gas, (2) to constrain the temperature of the cosmic microwave background (CMB), and (3) to evaluate the proton-to-electron mass ratio at redshift z ~ 0.89. Analyzing data from six rotational HC3N transitions (this includes the J = 7 6 line, which is likely detected for the first time in the interstellar medium) we obtain n(H2) ~ 2600 cm3 for the gas density of the south-western absorption component, assuming a background source covering factor, which is independent of frequency. With a possibly more realistic frequency dependence proportional to 0.5 (the maximal exponent permitted by observational boundary conditions), n(H2) ~ 1700 cm3. Again toward the south-western source, excitation temperatures of molecular species with optically thin lines and higher rotational constants are, on average, consistent with the expected temperature of the cosmic microwave background, TCMB = 5.14 K. However, individually, there is a surprisingly large scatter which far surpasses expected uncertainties. A comparison of CS J = 1 0 and 4 3 optical depths toward the weaker north-western absorption component results in Tex = 11 K and a 1- error of 3 K. For the main component, a comparison of velocities determined from ten optically thin NH3 inversion lines with those from five optically thin rotational transitions of HC3N, observed at similar frequencies, constrains potential variations of the proton-to-electron mass ratio to & 0916;/ < 1.4 106 with 3- confidence. Also including optically thin rotational lines from other molecular species, it is emphasized that systematic errors are V < 1 kms1, corresponding to / < 1.0 106.
title: Negative Appraisals and Experiences of Thriving and Burnout at Work and School During the COVID-19 Pandemic: The Moderating Effect of Embeddedness
Creators: name: Warnock, Kate Noel
Publisher: name: Old Dominion University Libraries
Year: 2022

description: The current study examines the effects of negative appraisals of COVID-19 on thriving and burnout, and whether embeddedness moderates these effects. Specifically, I examined whether negative appraisals of COVID-19 at work and school are related to less thriving and more burnout in the respective domains, and whether the predicted effects of negative appraisals of COVID-19 on thriving and burnout were stronger among those who reported more embeddedness in their job or major compared to those who are less embedded. Additionally, I investigate potential spillover effects of negative COVID-19 appraisals in one domain into the thriving and burnout in the other domain. Survey data from employed college students were used to test the hypotheses. I expected negative appraisals of COVID-19 to negatively impact one’s ability to thrive in both the work and school domains, and to be related to higher rates of burnout in both domains. It was also expected that employed students who are well embedded in their job or major would be protected against these effects, such that they would experience more thriving and less burnout in spite of their negative appraisals of COVID-19. I also expected to see spillover effects of negative appraisals of COVID-19 from one domain onto the outcomes in the other domain. Results showed support for the matching- and cross-domain hypotheses; negative appraisals of COVID-19 at work and school showed negative relationships with thriving and positive relationships with burnout in both domains. However, the moderating effects of major embeddedness were not significant, and the moderating effect of job embeddedness was positive rather than negative, as hypothesized. This suggests that the association between negative appraisals of COVID-19 and thriving at work was strengthened by job embeddedness. University administrators and organizational leaders should focus on reducing demands and increasing resources for students or employees, especially while the pandemic continues, to promote thriving and prevent burnout. Further, additional attention should be paid to highly embedded employees, as they may require even more resources during times of high demand.
Project "Agroforestry Innovation Networks" (Afinet) - 2Nd Meeting - Projecto "Redes De Inovação Agroflorestal" (Afinet) - 2ª Reunião
Creators: name: , Paulo
name: Amaral, Joana
Publisher: name: Zenodo
Year: 2018
Subjects: AFINET
RAIN
Portugal

description: Presentation of the AFINET project. Presentation of the first RAIN meeting conclusions. Definition of vehicles and concrete actions for the dissemination of identified innovations and knowledge. - Apresentação do projecto AFINET aos novos membros. Apresentação das conclusões da 1ª reunião. Definição de veículos e ações concretas para a disseminação das inovações e do conhecimento identificados.
Cephaloziella varians fm. arctica Damsh., Liverworts
Creators: name: Söderström, Lars
name: Hagborg, Anders
name: Konrat, Matt Von
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Marchantiophyta
Jungermanniopsida
Jungermanniales
Cephaloziellaceae
Cephaloziella
Cephaloziella varians
Cephaloziella varians f. arctica (bryhn et douin) damsh.,

description: Cephaloziella varians f. arctica (Bryhn et Douin) Damsh.,
Liverworts Greenland: 480, 2013 (see Damsholt 2013). BASIONYM: Cephaloziella arctica Bryhn et Douin, Lebermoose 2 (18): 159, 1913 (see Müller 1913).
description: Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2016, Early Land Plants Today: Index of Liverworts & Hornworts 2013 - 2014, pp. 133-185 in Phytotaxa 269 (3) on page 138, DOI: 10.11646/phytotaxa.269.3.1, http://zenodo.org/record/4779693
Cephaloziella villaumei Vana
Creators: name: Söderström, Lars
name: Hagborg, Anders
name: Konrat, Matt Von
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Marchantiophyta
Jungermanniopsida
Jungermanniales
Cephaloziellaceae
Cephaloziella
Cephaloziella villaumei

description: Cephaloziella villaumei (Steph.) Váňa,
Phytotaxa 112 (1): 3, 2013 (see Váňa et al. 2013i). BASIONYM: Cephalozia villaumei Steph., Sp. Hepat. (Stephani) 6: 437, 1924 (see Stephani 1924).
description: Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2016, Early Land Plants Today: Index of Liverworts & Hornworts 2013 - 2014, pp. 133-185 in Phytotaxa 269 (3) on page 138, DOI: 10.11646/phytotaxa.269.3.1, http://zenodo.org/record/4779693
Soil moisture monitoring at the field scale using neutron probe
Creators: name: Kodikara, J.
name: Rajeev, Pat
name: Chan, D.
name: Gallage, C.
Publisher: name: Swinburne
Year: 2024

description: Measurement of the moisture variation in soils is required for geotechnical design and research because soil properties and behavior can vary as moisture content changes. The neutron probe, which was developed more than 40 years ago, is commonly used to monitor soil moisture variation in the field. This study reports a full-scale field monitoring of soil moisture using a neutron moisture probe for a period of more than 2 years in the Melbourne (Australia) region. On the basis of soil types available in the Melbourne region, 23 sites were chosen for moisture monitoring down to a depth of 1500 mm. The field calibration method was used to develop correlations relating the volumetric moisture content and neutron counts. Observed results showed that the deepest 'wetting front' during the wet season was limited to the top 800 to 1000 mm of soil whilst the top soil layer down to about 550 mm responded almost immediately to the rainfall events. At greater depths (550 to 800 mm and below 800 mm), the moisture variations were relatively low and displayed predominantly periodic fluctuations. This periodic nature was captured with Fourier analysis to develop a cyclic moisture model on the basis of an analytical solution of a one-dimensional moisture flow equation for homogeneous soils. It is argued that the model developed can be used to predict the soil moisture variations as applicable to buried structures such as pipes.
Microwave-assisted synthesis and characterization of undoped and manganese doped zinc sulfide nanoparticles
Creators: name: Kuzmin, Alexei
name: Dile, Milena
name: Laganovska, Katrina
name: Zolotarjovs, Aleksejs
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Undoped and Mn-doped ZnS nanocrystals were produced by the microwave-assisted solvothermal method and characterized by X-ray diffraction, photoluminescence spectroscopy and scanning electron microscopy with energy-dispersive X-ray spectroscopy. All samples have the cubic zinc blende structure with the lattice parameter in the range of $a$ = 5.406-5.411 Å, and the average size of crystallites is in the range of 6-9 nm. These nanoparticles agglomerate and form large grains with an average size of up to 180 nm. The photoluminescence of the undoped ZnS sample shows a broad emission band located at 530 nm, attributed to the defects at the surface of nanoparticles. In all Mn-doped samples, the emission peak at 598 nm was observed assigned to the characteristic forbidden transition between excited ($^4$T$_1$) and ground ($^6$A$_1$) levels of Mn$^{2+}$. Synchrotron radiation X-ray absorption spectroscopy at the Zn and Mn K-edges combined with reverse Monte Carlo (RMC) simulations based on the evolutionary algorithm confirms that manganese ions substitute zinc ions. However, the difference in the ion sizes ($R$(Mn$^{2+}$(IV)) = 0.66 Å and $R$(Zn$^{2+}$(IV)) = 0.60 Å) is responsible for the larger interatomic distances Mn-S (2.40(2) Å) compared to Zn-S (2.33(2) Å). The static structural relaxations in ZnS:Mn nanoparticles are responsible for the large values of the mean-square displacements factors for Zn, S and Mn atoms obtained by RMC simulations.
Physical activity and sedentary behaviours among rural adults in Suixi, China: a cross-sectional study
Creators: name: Ding, Ding
name: Sallis, James F.
name: Hovell, Melbourne F.
name: Du, Jianzhong
name: Zheng, Miao
name: He, Haiying
name: Owen, Neville
Publisher: name: Swinburne
Year: 2024
Subjects: classificationCode: 4203
subject: Health services and systems
classificationCode: 4206
subject: Public health
classificationCode: 4207
subject: Sports science and exercise

description: Background: Modernisation and urbanisation have led to lifestyle changes and increasing risks for chronic diseases in China. Physical activity and sedentary behaviours among rural populations need to be better understood, as the rural areas are undergoing rapid transitions. This study assessed levels of physical activity and sedentary behaviours of farming and non-farming adults in rural Suixi, described activity differences between farming and non-farming seasons, and examined correlates of leisure-time physical activity (LTPA) and TV viewing. Methods: A random sample of rural adults (n = 287) in Suixi County, Guangdong, China were surveyed in 2009 by trained interviewers. Questionnaires assessed multiple physical activities and sedentary behaviours, and their correlates. Analysis of covariance compared activity patterns across occupations, and multiple logistic regressions assessed correlates of LTPA and TV viewing. Quantitative data analyses were followed by community consultation for validation and interpretation of findings. Results: Activity patterns differed by occupation. Farmers were more active through their work than other occupations, but were less active and more sedentary during the non-farming season than the farming season. Rural adults in Suixi generally had a low level of LTPA and a high level of TV viewing. Marital status, household size, social modelling for LTPA and owning sports equipment were significantly associated with LTPA but not with TV time. Most findings were validated through community consultation. Conclusions: For chronic disease prevention, attention should be paid to the currently decreasing occupational physical activity and increasing sedentary behaviours in rural China. Community and socially-based initiatives provide opportunities to promote LTPA and prevent further increase in sedentary behaviours.
Mediators of physical activity change in a behavioral modification program for type 2 diabetes patients
Creators: name: Van Dyck, Delfien
name: De Greef, Karlijn
name: Deforche, Benedicte
name: Ruige, Johannes
name: Tudor-Locke, Catrine E.
name: Kaufman, Jean-Marc
name: Owen, Neville
name: De Bourdeaudhuij, Ilse
Publisher: name: Swinburne
Year: 2024
Subjects: classificationCode: 4207
subject: Sports science and exercise
classificationCode: 5201
subject: Applied and developmental psychology
classificationCode: 5202
subject: Biological psychology
classificationCode: 5203
subject: Clinical and health psychology
classificationCode: 5204
subject: Cognitive and computational psychology
classificationCode: 5205
subject: Social and personality psychology

description: Background: Many studies have reported significant behavioral impact of physical activity interventions. However, few have examined changes in potential mediators of change preceding behavioral changes, resulting in a lack of information concerning how the intervention worked. Our purpose was to examine mediation effects of changes in psychosocial variables on changes in physical activity in type 2 diabetes patients. Methods: Ninety-two patients (62 +/- 9 years, 30, 0 +/- 2.5 kg/m(2), 69% males) participated in a randomized controlled trial. The 24-week intervention was based on social-cognitive constructs and consisted of a face-to-face session, telephone follow-ups, and the use of a pedometer. Social-cognitive variables and physical activity (device-based and self-reported) were collected at baseline, after the 24-week intervention and at one year post-baseline. PA was measured by pedometer, accelerometer and questionnaire. Results: Post-intervention physical activity changes were mediated by coping with relapse, changes in social norm, and social modeling from family members (p <= 0.05). One-year physical activity changes were mediated by coping with relapse, changes in social support from family and self-efficacy towards physical activity barriers (p <= 0.05) Conclusions: For patients with type 2 diabetes, initiatives to increase their physical activity could usefully focus on strategies for resuming regular patterns of activity, on engaging family social support and on building confidence about dealing with actual and perceived barriers to activity.
Multivariate Profiling of Hulls for Linear Cryptanalysis
Creators: name: Bogdanov, Andrey
name: Tischhauser, Elmar
name: Vejre, Philip S.
Publisher: name: International Association for Cryptologic Research
Year: 2018
Subjects: linear cryptanalysis; multivariate; multidimensional cryptanalysis; key-dependence; PRESENT; key recovery; statistical attack

description: Extensions of linear cryptanalysis making use of multiple approximations, such as multiple and multidimensional linear cryptanalysis, are an important tool in symmetric-key cryptanalysis, among others being responsible for the best known attacks on ciphers such as Serpent and present. At CRYPTO 2015, Huang et al. provided a refined analysis of the key-dependent capacity leading to a refined key equivalence hypothesis, however at the cost of additional assumptions. Their analysis was extended by Blondeau and Nyberg to also cover an updated wrong key randomization hypothesis, using similar assumptions. However, a recent result by Nyberg shows the equivalence of linear dependence and statistical dependence of linear approximations, which essentially invalidates a crucial assumption on which all these multidimensional models are based. In this paper, we develop a model for linear cryptanalysis using multiple linearly independent approximations which takes key-dependence into account and complies with Nyberg’s result. Our model considers an arbitrary multivariate joint distribution of the correlations, and in particular avoids any assumptions regarding normality. The analysis of this distribution is then tailored to concrete ciphers in a practically feasible way by combining a signal/noise decomposition approach for the linear hulls with a profiling of the actual multivariate distribution of the signal correlations for a large number of keys, thereby entirely avoiding assumptions regarding the shape of this distribution. As an application of our model, we provide an attack on 26 rounds of present which is faster and requires less data than previous attacks, while using more realistic assumptions and far fewer approximations. We successfully extend the attack to present the first 27-round attack which takes key-dependence into account.
description: IACR Transactions on Symmetric Cryptology, Volume 2018, Issue 1
Column Parity Mixers
Creators: name: Stoffelen, Ko
name: Daemen, Joan
Publisher: name: International Association for Cryptologic Research
Year: 2018
Subjects: mixing layers; iterative permutations; iterative block ciphers

description: We present column parity mixers (CPM), a generalization of the Θ mixing layer that is used in Keccak. Thanks to our description using matrix arithmetic, we can easily derive algebraic, diffusion, and mask propagation properties, leading to a surprising distinction between two types of CPMs. We compare CPMs to other popular types of mixing layers and argue that CPMs can be more efficient. While Keccak has a bit-oriented structure, we make the case that CPMs are also suitable for nibble- or byte-oriented designs. We outline a general substitution-permutation-network-based design strategy using a CPM, for which we show how one can attain strong bounds for differential and linear trails. We apply this strategy concretely to design a 256-bit permutation with an efficient inverse and strong trail bounds. Our permutation design uses a number of ideas that are of independent interest and allows a fast bitsliced implementation that compares quite well with other established ciphers and permutations.
description: IACR Transactions on Symmetric Cryptology, Volume 2018, Issue 1
Ceramanus E. D. Cooper, Phytotaxa
Creators: name: Söderström, Lars
name: Hagborg, Anders
name: Konrat, Matt Von
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Marchantiophyta
Jungermanniopsida
Jungermanniales
Lepidoziaceae
Ceramanus

description: Ceramanus E.D.Cooper,
Phytotaxa 97 (2): 53, 2013 (see Cooper et al. 2013).
TYPE: Ceramanus centipes (Lindenb. et Gottsche) E.D.Cooper.
description: Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2016, Early Land Plants Today: Index of Liverworts & Hornworts 2013 - 2014, pp. 133-185 in Phytotaxa 269 (3) on page 138, DOI: 10.11646/phytotaxa.269.3.1, http://zenodo.org/record/4779693
Key-Recovery Attacks on Full Kravatte
Creators: name: Chaigneau, Colin
name: Fuhr, Thomas
name: Gilbert, Henri
name: Guo, Jian
name: Jean, Jérémy
name: Reinhard, Jean-René
name: Song, Ling
Publisher: name: International Association for Cryptologic Research
Year: 2018
Subjects: Cryptanalysis; Higher Order Differential; Algebraic Attack; Filtered LFSR

description: This paper presents a cryptanalysis of full Kravatte, an instantiation of the Farfalle construction of a pseudorandom function (PRF) with variable input and output length. This new construction, proposed by Bertoni et al., introduces an efficiently parallelizable and extremely versatile building block for the design of symmetric mechanisms, e.g. message authentication codes or stream ciphers. It relies on a set of permutations and on so-called rolling functions: it can be split into a compression layer followed by a two-step expansion layer. The key is expanded and used to mask the inputs and outputs of the construction. Kravatte instantiates Farfalle using linear rolling functions and permutations obtained by iterating the Keccak round function.
We develop in this paper several attacks against this PRF, based on three different attack strategies that bypass part of the construction and target a reduced number of permutation rounds. A higher order differential distinguisher exploits the possibility to build an affine space of values in the cipher state after the compression layer. An algebraic meet-in-the-middle attack can be mounted on the second step of the expansion layer. Finally, due to the linearity of the rolling function and the low algebraic degree of the Keccak round function, a linear recurrence distinguisher can be found on intermediate states of the second step of the expansion layer. All the attacks rely on the ability to invert a small number of the final rounds of the construction. In particular, the last two rounds of the construction together with the final masking by the key can be algebraically inverted, which allows to recover the key.
The complexities of the devised attacks, applied to the Kravatte specifications published on the IACR ePrint in July 2017, or the strengthened version of Kravatte recently presented at ECC 2017, are far below the security claimed.
description: IACR Transactions on Symmetric Cryptology, Volume 2018, Issue 1
Hours spent and energy expended in physical activity domains: results from the Tomorrow Project cohort in Alberta, Canada
Creators: name: Csizmadi, Ilona
name: Lo Siou, Geraldine
name: Friedenreich, Christine M.
name: Owen, Neville
name: Robson, Paula J.
Publisher: name: Swinburne
Year: 2024
Subjects: classificationCode: 4203
subject: Health services and systems
classificationCode: 4206
subject: Public health
classificationCode: 4207
subject: Sports science and exercise

description: Background: Knowledge of adult activity patterns across domains of physical activity is essential for the planning of population-based strategies that will increase overall energy expenditure and reduce the risk of obesity and related chronic diseases. We describe domain-specific hours of activity and energy expended among participants in a prospective cohort in Alberta, Canada. Methods: The Past Year Total Physical Activity Questionnaire was completed by 15,591 Tomorrow Project (R) participants, between 2001 and 2005 detailing physical activity type, duration, frequency and intensity. Domain-specific hours of activity and activity-related energy expenditure, expressed as a percent of total energy expenditure (TEE) (Mean (SD); Median (IQR)) are reported across inactive (<1.4), low active (1.4 to 1.59), active (1.6 to 1.89) and very active (>= 1.9) Physical Activity Level (PAL = TEE:REE) categories. Results: In very active women and amongst all men except those classified as inactive, activity-related energy expenditure comprised primarily occupational activity. Amongst inactive men and women in active, low active and inactive groups, activity-related energy expenditure from household activity was comparable to, or exceeded that for occupational activity. Leisure-time activity-related energy expenditure decreased with decreasing PAL categories; however, even amongst the most active men and women it accounted for less than 10 percent of TEE. When stratified by employment status, leisure-time activity-related energy expenditure was greatest for retired men [mean (SD): 10.8 (8.5) percent of TEE], compared with those who were fully employed, employed part-time or not employed. Transportation-related activity was negligible across all categories of PAL and employment status. Conclusion: For the inactive portion of this population, active non-leisure activities, specifically in the transportation and occupational domains, need to be considered for inclusion in daily routines as a means of increasing population-wide activity levels. Environmental and policy changes to promote active transport and workplace initiatives could increase overall daily energy expenditure through reducing prolonged sitting time.
Distinguishing Attack on NORX Permutation
Creators: name: Huang, Tao
name: Wu, Hongjun
Publisher: name: International Association for Cryptologic Research
Year: 2018
Subjects: NORX; Distinguishing Attack; Differential-Linear Cryptanalysis

description: NORX is a permutation-based authentication scheme which is currently a third-round candidate of the ongoing CAESAR competition. The security bound of NORX is derived from the sponge construction applied to an ideal underlying permutation. In this paper, we show that the NORX core permutation is non-ideal with a new distinguishing attack. More specifically, we can distinguish NORX64 permutation with 248.5 queries and distinguish NORX32 permutation with 264.7 queries using carefully crafted differential-linear attacks. We have experimentally verified the distinguishing attack on NORX64 permutation. Although the distinguishing attacks reveal the weakness of the NORX permutation, it does not directly threat the security of the NORX authenticated encryption scheme.
description: IACR Transactions on Symmetric Cryptology, Volume 2018, Issue 1
Robust Acoustic Domain Identification with its Application to Speaker Diarization
Creators: name: Kumar, A Kishore
name: Waldekar, Shefali
name: Sahidullah, Md
name: Saha, Goutam
Publisher: name: arXiv
Year: 2022
Subjects: subject: Sound (cs.SD)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: With the rise in multimedia content over the years, more variety is observed in the recording environments of audio. An audio processing system might benefit when it has a module to identify the acoustic domain at its front-end. In this paper, we demonstrate the idea of \emph{acoustic domain identification} (ADI) for \emph{speaker diarization}. For this, we first present a detailed study of the various domains of the third DIHARD challenge highlighting the factors that differentiated them from each other. Our main contribution is to develop a simple and efficient solution for ADI. In the present work, we explore speaker embeddings for this task. Next, we integrate the ADI module with the speaker diarization framework of the DIHARD III challenge. The performance substantially improved over that of the baseline when the thresholds for agglomerative hierarchical clustering were optimized according to the respective domains. We achieved a relative improvement of more than $5\%$ and $8\%$ in DER for core and full conditions, respectively, on Track 1 of the DIHARD III evaluation set.
description: Accepted for publication in International Journal of Speech Technology (Springer Nature)
Searching for Subspace Trails and Truncated Differentials
Creators: name: Leander, Gregor
name: Tezcan, Cihangir
name: Wiemer, Friedrich
Publisher: name: International Association for Cryptologic Research
Year: 2018
Subjects: Subspace Trail Cryptanalysis; Truncated Differentials; Tools

description: Grassi et al. [Gra+16] introduced subspace trail cryptanalysis as a generalization of invariant subspaces and used it to give the first five round distinguisher for Aes. While it is a generic method, up to now it was only applied to the Aes and Prince. One problem for a broad adoption of the attack is a missing generic analysis algorithm. In this work we provide efficient and generic algorithms that allow to compute the provably best subspace trails for any substitution permutation cipher.
description: IACR Transactions on Symmetric Cryptology, Volume 2018, Issue 1
Linear stability of projected canonical curves with applications to the slope of fibred surfaces
Creators: name: Barja, M. A.
name: Stoppino, L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14H10 (14D06, 14J29)

description: Let f :S\to B be a non locally trivial fibred surface. We prove a lower bound for the slope of f depending increasingly from the relative irregularity of f and the Clifford index of the general fibres.
description: Latex, 19 pages, revised version; to appear in J. of Math. Soc. of Japan
Ceramanus centipes E. D. Cooper, Phytotaxa
Creators: name: Söderström, Lars
name: Hagborg, Anders
name: Konrat, Matt Von
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Marchantiophyta
Jungermanniopsida
Jungermanniales
Lepidoziaceae
Ceramanus
Ceramanus centipes

description: Ceramanus centipes (Lindenb. et Gottsche) E.D.Cooper,
Phytotaxa 97 (2): 54, 2013 (see Cooper et al. 2013). BASIONYM: Lepidozia centipes Lindenb. et Gottsche, Syn. Hepat. 2: 204, 1845 (see Gottsche et al. 1845a).
description: Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2016, Early Land Plants Today: Index of Liverworts & Hornworts 2013 - 2014, pp. 133-185 in Phytotaxa 269 (3) on page 138, DOI: 10.11646/phytotaxa.269.3.1, http://zenodo.org/record/4779693
Ceramanus clatritexta E. D. Cooper, Phytotaxa
Creators: name: Söderström, Lars
name: Hagborg, Anders
name: Konrat, Matt Von
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Marchantiophyta
Jungermanniopsida
Jungermanniales
Lepidoziaceae
Ceramanus
Ceramanus clatritexta

description: Ceramanus clatritexta (Steph.) E.D.Cooper,
Phytotaxa 97 (2): 54, 2013 (see Cooper et al. 2013). BASIONYM: Lepidozia clatritexta Steph., Sp. Hepat. (Stephani) 3: 583, 1909 (see Stephani 1909).
description: Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2016, Early Land Plants Today: Index of Liverworts & Hornworts 2013 - 2014, pp. 133-185 in Phytotaxa 269 (3) on page 138, DOI: 10.11646/phytotaxa.269.3.1, http://zenodo.org/record/4779693
Ceramanus elegans E. D. Cooper, Phytotaxa
Creators: name: Söderström, Lars
name: Hagborg, Anders
name: Konrat, Matt Von
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Marchantiophyta
Jungermanniopsida
Jungermanniales
Lepidoziaceae
Ceramanus
Ceramanus elegans

description: Ceramanus elegans (Colenso) E.D.Cooper,
Phytotaxa 97 (2): 54, 2013 (see Cooper et al. 2013). BASIONYM: Lepidozia elegans Colenso, Trans. & Proc. New Zealand Inst. 21: 65, 1889 (see Colenso 1889).
description: Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2016, Early Land Plants Today: Index of Liverworts & Hornworts 2013 - 2014, pp. 133-185 in Phytotaxa 269 (3) on page 138, DOI: 10.11646/phytotaxa.269.3.1, http://zenodo.org/record/4779693
Independent and joint associations of TV viewing time and snack food consumption with the metabolic syndrome and its components: A cross-sectional study in Australian adults
Creators: name: Thorp, Alicia A.
name: McNaughton, Sarah A.
name: Owen, Neville
name: Dunstan, David W.
Publisher: name: Swinburne
Year: 2024
Subjects: classificationCode: 4203
subject: Health services and systems
classificationCode: 4206
subject: Public health
classificationCode: 4207
subject: Sports science and exercise

description: BACKGROUND: Television (TV) viewing time is positively associated with the metabolic syndrome (MetS) in adults. However, the mechanisms through which TV viewing time is associated with MetS risk remain unclear. There is evidence that the consumption of energy-dense, nutrient poor snack foods increases during TV viewing time among adults, suggesting that these behaviors may jointly contribute towards MetS risk. While the association between TV viewing time and the MetS has previously been shown to be independent of adult's overall dietary intake, the specific influence of snack food consumption on the relationship is yet to be investigated. The purpose of this study was to examine the independent and joint associations of daily TV viewing time and snack food consumption with the MetS and its components in a sample of Australian adults. METHODS: Population-based, cross-sectional study of 3,110 women and 2,572 men (>35 years) without diabetes or cardiovascular disease. Participants were recruited between May 1999 and Dec 2000 in the six states and the Northern Territory of Australia. Participants were categorised according to self-reported TV viewing time (low: 0-2 hr/d; high: >2 hr/d) and/or consumption of snack foods (low: 0-3 serves/d; high: >3 serves/d). Multivariate odds ratios [95% CI] for the MetS and its components were estimated using gender-specific, forced entry logistic regression. RESULTS: OR [95% CI] for the MetS was 3.59 [2.25, 5.74] (p≤0.001) in women and 1.45 [1.02, 3.45] (p = 0.04) in men who jointly reported high TV viewing time and high snack food consumption. Obesity, insulin resistance and hypertension (women only) were also jointly associated with high TV viewing time and high snack food consumption. Further adjustment for diet quality and central adiposity maintained the associations in women. High snack food consumption was also shown to be independently associated with MetS risk [OR: 1.94 (95% CI: 1.45, 2.60), p < 0.001] and hypertension [OR: 1.43 (95% CI: 1.01, 2.02), p = 0.05] in women only. For both men and women, high TV viewing time was independently associated with the MetS and its individual components (except hypertension). CONCLUSION: TV viewing time and snack food consumption are independently and jointly associated with the MetS and its components, particularly in women. In addition to physical activity, population strategies targeting MetS prevention should address high TV time and excessive snack food intake.
Ceramanus grossiseta E. D. Cooper, Phytotaxa
Creators: name: Söderström, Lars
name: Hagborg, Anders
name: Konrat, Matt Von
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Marchantiophyta
Jungermanniopsida
Jungermanniales
Lepidoziaceae
Ceramanus
Ceramanus grossiseta

description: Ceramanus grossiseta (Steph.) E.D.Cooper,
Phytotaxa 97 (2): 54, 2013 (see Cooper et al. 2013). BASIONYM: Lepidozia grossiseta Steph., Sp. Hepat. (Stephani) 3: 584, 1909 (see Stephani 1909).
description: Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2016, Early Land Plants Today: Index of Liverworts & Hornworts 2013 - 2014, pp. 133-185 in Phytotaxa 269 (3) on page 138, DOI: 10.11646/phytotaxa.269.3.1, http://zenodo.org/record/4779693
On the Generalization of Butterfly Structure
Creators: name: Li, Yongqiang
name: Tian, Shizhu
name: Yu, Yuyin
name: Wang, Mingsheng
Publisher: name: International Association for Cryptologic Research
Year: 2018
Subjects: Butterfly structure; differential uniformity; nonlinearity; algebraic degree

description: Butterfly structure was proposed in CRYPTO 2016 [PUB16], and it can generate permutations over 𝔽22n from power permutations over 𝔽2n for odd n. After that, a generalized butterfly structure was proposed in IEEE IT [CDP17], which can generate permutations over 𝔽22n from any permutation over 𝔽2n. There is also another generalization which was given in [FFW17]. Up to now, three constructions based on butterfly structure and Gold type permutations are proposed. In the present paper, we give a construction which contains the three previous constructions as special cases and also generates new permutations with good cryptographic properties. Moreover, we give a characterization of the number of solutions of a special system of linear equations in a more general way, which is useful to investigate the cryptographic properties of quadratic functions obtained with butterfly construction based on Gold exponents.
description: IACR Transactions on Symmetric Cryptology, Volume 2018, Issue 1
Hedge to Retrive Studies Related to Bhutan  from the OVID EMBASE Database
Creators: Campbell, Sandra M.
Publisher: name: University of Alberta Library
Year: 2022

This hedge is designed to retrieve studies related to Bhutan from the OVID EMBASE database. This is an archived version of the hedge. For the most current version see the Health Sciences Search Filters page https://guides.library.ualberta.ca/health-sciences-search-filters