cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Physical and functional interaction of p53 and p110α and implications in ovarian carcinogenesis
Creators: name: Astanehe, Arezoo
Publisher: name: University of British Columbia
Year: 2009

description: In approximately 40% of ovarian cancers, PIK3CA, which encodes the p110α catalytic subunit of phosphatidylinositol 3-kinase (PI3K) is amplified. This amplification correlates with increased PIK3CA transcription, p110α protein expression, and PI3K activity. Moreover, PIK3CA is implicated as an oncogene in ovarian cancers. Another common mutation in ovarian cancer leads to loss of p53 function. Alterations to p53 are known to be involved in tumour development and progression. Previous studies have shown that in benign cells, the p53 and PI3K pathways are connected through the regulation of PTEN by p53. Therefore, in the presence of p53, PTEN levels increase and exert their effect through decreasing P-AKT levels, and thereby pro-survival activities. In addition, it has been suggested that in cancer cells, p53 down-regulates the pro-survival pathway, independent of PTEN, by negatively regulating p110α levels. However, it has not been shown whether the p53 effect on p110α levels is direct or indirect and whether this interaction exists in benign cells. Our studies show, for the first time, a direct relationship between p53 and PI3K pathways. We used temperature sensitive cells, in which p53 function was regulated through the shift in temperature. We showed that p53 negatively regulates PIK3CA transcript and p110α levels through direct binding to the PIK3CA promoter. Moreover, we determined that the regulation of p110α levels by p53 is also present in ovarian cancer cells where overexpression of p53 significantly reduced p110α levels. In addition, for the first time, we identified two alternate promoters (promoter la and promoter lb) upstream of two alternate first exons (exonla and exonlb) that transcribe into two alternate transcripts with different 5' untranslated regions (5' UTRs). Our results determined direct binding of p53 to PIK3CA promoter la, and studies to determine whether this direct binding is responsible for the suppression of the promoter and the down-regulation of PIK3CA transcript and p110α levels are currently in progress. Our studies suggest that the loss of p53 in ovarian cancers may result in loss of transcription suppression of PIK3CA and therefore increased p110α levels and PI3K activity, which may in turn lead to increase in proliferation and resistance to apoptosis.
Bose-Einstein condensate of kicked rotators with time-dependent interaction
Creators: name: Mieck, B.
name: Graham, R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: A modification of the quantum kicked rotator is suggested with a time-dependent delta-kicked interaction parameter which can be realized by a pulsed turn-on of a Feshbach resonance. The mean kinetic energy increases exponentially with time in contrast to a merely diffusive or linear growth for the first few kicks for the quantum kicked rotator with a constant interaction parameter. A recursive relation is derived in a self-consistent random phase approximation which describes this superdiffusive growth of the kinetic energy and is compared with numerical simulations. Unlike in the case of the quantum rotator with constant interaction, a Lax pair is not found. In general the delta-kicked interaction is found to lead to strong chaotic behaviour.
description: 4 pages, 3 figures
Thermodynamic properties of the Dicke model in the strong-coupling regime
Creators: name: Liberti, Giuseppe
name: Zaffino, Rosa Letizia
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We discuss the problem of a N two-level systems interacting with a single radiation mode in the strong-coupling regime. The thermodynamic properties of Dicke model are analyzed developing a perturbative expansion of the partition function in the high-temperature limit and we use this method to investigate the connections between the Dicke and the collective one-dimensional Ising model
description: 7 pages, accepted for publication in EPJ B
Structural properties and Raman spectra of columbite-type NiNb$_{2-x}$V$_x$O$_6$ synthesized under high pressure
Creators: name: Peña, Jully P.
name: Bouvier, Pierre
name: Isnard, Oliver
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The complete set of structural parameters of the new series of compounds NiNb$_{2-x}$V$_x$O$_6$ ($0\leq x \leq 2$) with the unusual columbite-type structure is presented here. In the samples containing vanadium, this crystalline structure was stabilized by synthesis in conditions of high pressure and high temperature. Here we report here the first Raman spectrum for the NiV$_2$O$_6$-\textsl{Pbcn} polymorph and extend the list of the previously observed modes for the NiNb$_2$O$_6$. The evolution of the vibrational Raman spectrum produced when the vanadium is substituted for niobium along the series is also presented and discussed. This evolution is interpreted by taking into account the changes in the local structural environment of the niobium/vanadium atoms and its influence over the nickel-oxygen bonds around them. The presence of vanadium atoms favors an increase of the symmetry in the arrangement of oxygen atoms around the nickel-ones; in counterpart, the vanadium is in an octahedral environment which is more distorted than that of the niobium. Because of these apparently subtle differences, the homogeneous distribution of vanadium in the solid solution NiNb$_{2-x}$V$_x$O$_6$ is not possible.
Dynamics of force-induced DNA slippage
Creators: name: Neher, Richard A.
name: Gerland, Ulrich
Publisher: name: arXiv
Year: 2004
Subjects: subject: Biomolecules (q-bio.BM)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We study the basepairing dynamics of DNA with repetitive sequences where local strand slippage can create, annihilate, and move bulge loops. Using an explicit theoretical model, we find a rich dynamical behavior as a function of an applied shear force f: reptation-like dynamics at f=f_c with a rupture time scaling as N^3 with its length N, drift-diffusion dynamics for f_c < f < f^*, and a dynamical transition to an unraveling mode of strand separation at f = f^*. We predict a viscoelastic behavior for periodic DNA with time and force scales that can be programmed into its sequence.
description: revised version with minor changes as will be published in Phys. Rev. Lett
Vehicle Automation Field Test: Impact on Driver Behavior and Trust
Creators: name: Alvarez, Walter Morales
name: Smirnov, Nikita
name: Matthes, Elmar
name: Olaverri-Monreal, Cristina
Publisher: name: arXiv
Year: 2020
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: With the growing technological advances in autonomous driving, the transport industry and research community seek to determine the impact that autonomous vehicles (AV) will have on consumers, as well as identify the different factors that will influence their use. Most of the research performed so far relies on laboratory-controlled conditions using driving simulators, as they offer a safe environment for testing advanced driving assistance systems (ADAS). In this study we analyze the behavior of drivers that are placed in control of an automated vehicle in a real life driving environment. The vehicle is equipped with advanced autonomy, making driver control of the vehicle unnecessary in many scenarios, although a driver take over is possible and sometimes required. In doing so, we aim to determine the impact of such a system on the driver and their driving performance. To this end road users' behavior from naturalistic driving data is analyzed focusing on awareness and diagnosis of the road situation. Results showed that the road features determined the level of visual attention and trust in the automation. They also showed that the activities performed during the automation affected the reaction time to take over the control of the vehicle.
description: Paper accepted for submission in The 23rd IEEE International Conference on Intelligent Transportation Systems
Confronting next-leading BFKL kernels with proton structure function data
Creators: name: Peschanski, R.
name: Royon, C.
name: Schoeffel, L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a phenomenological study of the Balitsky-Fadin-Kuraev-Lipatov (BFKL) approach applied to the data on the proton structure function F_2 measured at HERA in the small-x_{Bjorken} region. In a first part we use a simplified ``effective kernel'' approximation leading to few-parameter fits of F_2. It allows for a comparison between leading-logs (LO) and next-to-leading logs (NLO) BFKL approaches in the saddle-point approximation, using known resummed NLO-BFKL kernels. The NLO fits give a qualitatively satisfactory account of the running coupling constant effect but quantitatively the chi squared remains sizeably higher than the LO fit at fixed coupling. In a second part, a comparison of theory and data through a detailed analysis in Mellin space (x_{Bjorken} -> omega) leads to a more model independent approach to the resummed NLO-BFKL kernels we consider and points out some necessary improvements of the extrapolation at higher orders.
description: 19 pages, 11 figures, minor corrections, one figure improved, LO fit with reunning coupling constant and references added, conclusions unchanged
Large scale evaluation of importance maps in automatic speech recognition
Creators: name: Trinh, Viet Anh
name: Mandel, Michael I
Publisher: name: arXiv
Year: 2020
Subjects: subject: Sound (cs.SD)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In this paper, we propose a metric that we call the structured saliency benchmark (SSBM) to evaluate importance maps computed for automatic speech recognizers on individual utterances. These maps indicate time-frequency points of the utterance that are most important for correct recognition of a target word. Our evaluation technique is not only suitable for standard classification tasks, but is also appropriate for structured prediction tasks like sequence-to-sequence models. Additionally, we use this approach to perform a large scale comparison of the importance maps created by our previously introduced technique using "bubble noise" to identify important points through correlation with a baseline approach based on smoothed speech energy and forced alignment. Our results show that the bubble analysis approach is better at identifying important speech regions than this baseline on 100 sentences from the AMI corpus.
description: submitted to INTERSPEECH 2020
An evaluation of the potential for biodegradation of methanol in the Fraser River, BC
Creators: name: Bennett, Sharon M.
Publisher: name: University of British Columbia
Year: 2009

description: Increasing concerns over the use of fossil fuels and the decreasing supply of cheap efficient fuel has led a demand for cost effective and sustainable alternative fuels. Methanol is thought to be a promising alternative fuel for use in fuel cell vehicles and as a gasoline additive. With an increase in demand and consequently, an increase in shipping, storage and distribution facilities, the potential for the release of methanol to the environment is high. In the event of a spill, it is important to understand how the natural environment will respond. This study sought to determine the rate and factors contributing to the natural biodegradation of methanol in the Fraser River. Four experimental trials were conducted over a period of a year. Initial methanol concentrations added were 1000 mg/L and 10000 mg/L and measured using gas chromatography. Comparisons were made between samples with and without nutrient amendments. Total bacterial counts and counts of methanol degrading bacteria were also measured using epifluorescence microscopy and the most probable number technique respectively. ¹⁴C uptake was also analyzed to measure microbial activity. Results of the trials showed that volatilization played a major role in the loss of methanol. Rates of loss ranged from 6 to 180 mg/L/day. Evidence of biodegradation was found in nutrient amended samples at cooler temperatures with an initial methanol concentration of 1000 mg/L. Little to no evidence of biodegradation was found in the other test conditions. Other contributing factors to the biodegradation rate included temperature, nutrients and competition among natural flora in the river water.
Rural Income Generating Activities in Developing Countries: Re-assessing the Evidence
Creators: name: Carletto, Gero
name: Covarrubias, Katia
name: Davis, Benjamin
name: Krausova, Marika
name: Stamoulis, Kostas G.
name: Winters, Paul C.
name: Zezza, Alberto
name: Carletto, Gero
name: Covarrubias, Katia
name: Davis, Benjamin
name: Krausova, Marika
name: Stamoulis, Kostas G.
name: Winters, Paul C.
name: Zezza, Alberto
Publisher: name: Unknown
Year: 2007
Subjects: subject: Community/Rural/Urban Development
subject: International Development
subject: rural economy
subject: non-farm activities
subject: income inequality
subject: income diversification

description: This paper contributes to the understanding of the dynamics of developing country rural labour markets by re-evaluating the available evidence on the levels and composition of income sources adopted by rural households in order to understand the relationship between the various economic activities taking place in rural areas and their implications for economic growth and poverty reduction. This is achieved in two parts: First, the paper introduces the Rural Income Generating Activities (RIGA) database, a newly constructed FAO repository of household survey data, income measures and cross-country comparable indicators. Second, using the RIGA database, the paper undertakes a descriptive analysis of the agricultural and non-agricultural sectors of the rural economy, assessing the importance of rural non-farm activities within the complex income strategies adopted by rural households in developing countries and their relationship to poverty and inequality.
Observations and 3D photoionisation modelling of the Wolf-Rayet planetary nebula NGC 1501
Creators: name: Ercolano, Barbara
name: Wesson, R.
name: Zhang, Y.
name: Barlow, M. J.
name: De Marco, O.
name: Rauch, T.
name: Liu, X. -W.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Deep optical spectra of the high excitation planetary nebula NGC 1501 and its W04 central star are presented. A recombination line abundance analysis of the central star's emission-line spectrum yields He:C:O mass fractions of 0.36:0.48:0.16, similar to those of PG1159 stars. A detailed empirical analysis of the nebular collisionally excited line (CEL) and optical recombination line (ORL) spectrum is presented, together with fully three-dimensional photoionisation modelling of the nebula. We found very large ORL-CEL abundance discrepancy factors (ADFs) for O^2+ (32) and Ne^2+ (33). The mean value of 5100K for the T_e derived from HeI recombination lines ratios is 6000K lower than the value of 11100K implied by the [OIII] line ratio. A three-dimensional photoionisation model of NGC 1501 was constructed using the photoionisation code MOCASSIN, based on our new spectroscopic data and using the three-dimensional electron density distribution determined from long-slit echellograms of the nebula by Ragazzoni et al. (2001). The initial models showed higher degrees of ionisation of heavy elements than indicated by observations. We investigated the importance of the missing low-temperature dielectronic recombination rates for third-row elements and have estimated upper limits to their rate coefficients. Our model heavily under-predicts the optical recombination line emission. We conclude that the presence of a hydrogen-deficient, metal-rich component is necessary to explain the observed ORL spectrum of this object. The existence of such knots could also provide a softening of the radiation field, via the removal of ionising photons by absorption in the knots, thereby helping to alleviate the over-ionisation of the heavy elements in our models.
description: 19 pages, 2 figures, accepted by MNRAS
SEVurity: No Security Without Integrity -- Breaking Integrity-Free Memory Encryption with Minimal Assumptions
Creators: name: Wilke, Luca
name: Wichelmann, Jan
name: Morbitzer, Mathias
name: Eisenbarth, Thomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: One reason for not adopting cloud services is the required trust in the cloud provider: As they control the hypervisor, any data processed in the system is accessible to them. Full memory encryption for Virtual Machines (VM) protects against curious cloud providers as well as otherwise compromised hypervisors. AMD Secure Encrypted Virtualization (SEV) is the most prevalent hardware-based full memory encryption for VMs. Its newest extension, SEV-ES, also protects the entire VM state during context switches, aiming to ensure that the host neither learns anything about the data that is processed inside the VM, nor is able to modify its execution state. Several previous works have analyzed the security of SEV and have shown that, by controlling I/O, it is possible to exfiltrate data or even gain control over the VM's execution. In this work, we introduce two new methods that allow us to inject arbitrary code into SEV-ES secured virtual machines. Due to the lack of proper integrity protection, it is sufficient to reuse existing ciphertext to build a high-speed encryption oracle. As a result, our attack no longer depends on control over the I/O, which is needed by prior attacks. As I/O manipulation is highly detectable, our attacks are stealthier. In addition, we reverse-engineer the previously unknown, improved Xor-Encrypt-Xor (XEX) based encryption mode, that AMD is using on updated processors, and show, for the first time, how it can be overcome by our new attacks.
description: 14 pages, 6 figures, accepted at IEEE S&P 2020
Reversals of Rényi Entropy Inequalities under Log-Concavity
Creators: name: Melbourne, James
name: Tkocz, Tomasz
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: Information Theory (cs.IT)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We establish a discrete analog of the Rényi entropy comparison due to Bobkov and Madiman. For log-concave variables on the integers, the min entropy is within log e of the usual Shannon entropy. Additionally we investigate the entropic Rogers-Shephard inequality studied by Madiman and Kontoyannis, and establish a sharp Rényi version for certain parameters in both the continuous and discrete cases
Additional file 3 of Assessing validity evidence for a serious game dedicated to patient clinical deterioration and communication
Creators: name: Blanié, Antonia
name: Michel-Ange Amorim
name: Meffert, Arnaud
name: Perrot, Corinne
name: Dondelli, Lydie
name: Benhamou, Dan
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 3:Table S1. Factorial analysis (Principal Component Analysis, PCA) (a) for scores and players’ experience and (b) for scores and questions about content validity and face validity (see scores and questions in Tables 2 and 3). Table S2. Factorial analysis (Principal Component Analysis, PCA) testing various aspects of the questionnaire (realism, educational content and impact on the player) (scores and questions in Tables 2 and 3). Table S3. Factorial analysis (Principal Component Analysis, PCA) between the clinical reasoning process components (self-questionnaire) and errors made during the game (communication and situational awareness). Two students were excluded (one because data on the post-operative haemorrhage scenario were lacking and another because he/she did not answer the questionnaire).
Food Security Analysis and Policies for Transition Countries
Creators: name: Wehrheim, Peter
name: Wiesmann, Doris M.
name: Wehrheim, Peter
name: Wiesmann, Doris M.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Food Security and Poverty
subject: Food security
subject: poverty
subject: malnutrition
subject: transition countries
subject: agriculture
subject: agricultural policy
subject: safety nets

description: This article explores the characteristics of food security in the context of economies in transition. These special characteristics derive from the “legacies” of socialist systems, both economy-wide ones and others specific to the agriculture and the food sector. Food insecurity in transition countries is considered predominantly “transitory”, while social safety nets dating back to the socialist years provide some cushion. Market failures and other institutional constraints are prevalent, inhibiting the process towards improvement of the food security situation. Conflict takes a heavy toll in terms of hunger and malnutrition in economies in transition and macro level factors are at work to determine food security outcomes. At the same time, socialist legacies determine differences in food security outcomes between transition and developing countries beyond what would be explained by income differences.
Strategy correlations and timing of adaptation in Minority Games
Creators: name: Galla, Tobias
name: Sherrington, David
Publisher: name: arXiv
Year: 2005
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the role of strategy correlations and timing of adaptation for the dynamics of Minority Games, both simulationally and analytically. Using the exact generating functional approach a la De Dominicis we compute the phase diagram and the behaviour of batch and on-line games with correlated strategies, complementing exisiting replica studies of their statics. It is shown that the timing of adaptation can be relevant; while conventional games with uncorrelated strategies are nearly insensitive to the choice of on-line versus batch learning, we find qualitative differences when anti-correlations are present in the strategy assignments. The available standard approximations for the volatility in terms of persistent order parameters in the stationary ergodic states become unreliable in batch games under such circumstances. We then comment on the role of oscillations and the relation to the breakdown of ergodicity. Finally, it is discussed how the generating functional formalism can be used to study mixed populations of so-called `producers' and `speculators' in the context of the batch minority games.
description: 15 pages, 13 figures, EPJ style
The Political Economy of Decentralization in Thailand - Does Decentralization Allow for Peasant Participation?
Creators: name: Dufhues, Thomas
name: Theesfeld, Insa
name: Buchenrieder, Gertrud
name: Munkung, Nuchanata
name: Dufhues, Thomas
name: Theesfeld, Insa
name: Buchenrieder, Gertrud
name: Munkung, Nuchanata
Publisher: name: Unknown
Year: 2011
Subjects: Agricultural and Food Policy

description: One of the most important issues in rural development is empowerment and entitlement of farmers through participation. Decentralisation and participation are seemingly interdependent. Therefore, the paper begins with a theoretical discussion on the cause and effects of this interdependence. Decentralisation is often advertised as means to better incorporate the views and wishes of local actors. Yet, a decentralization process is no guaranty for political participation of local actors. The state induced decentralisation process in rural Thailand serves as an example to investigate forces that hamper or facilitate political participation. Change and uncertainty are inherent of political systems and the agricultural sector. Hence, this paper focuses in particular, on the last two politically turbulent decades in Thailand and its impact on political participation in rural Thailand. The Tambon Administration Organization (TAO) as one means of and likewise outcome of the decentralization process will serve as an example to discuss the effects of decentralisation on participation in the TAOs, using the concept of accountability. After increasing decentralization at the end of the 90s the last decade was coined by centralization policies. The ongoing political unrest could potentially trigger a new wave of political decentralization. However, the real reason for decentralization is not to distribute power but to maintain central effectiveness. Thus, we expect to see more decentralization without participation.
Scientific data of resurrecting the dead is engineering problem and not impossible science
Creators: name: mosinyan, Isaac
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 510304
subject: Thermodynamics and statistical physics
classificationCode: 510103
subject: Cosmology and extragalactic astronomy
classificationCode: 510703
subject: Particle physics
classificationCode: 460299
subject: Artificial intelligence not elsewhere classified
classificationCode: 460201
subject: Artificial life and complex adaptive systems
classificationCode: 510201
subject: Atomic and molecular physics
classificationCode: 510501
subject: Biological physics
classificationCode: 510104
subject: Galactic astronomy

description: Groundbreaking interpretation of entropy shows reversal of entropy in cosmic scales is possible. Resurrection of the dead?, it should impossible even in physics right?. Well, it was a shock to see that it was not impossible due to largerly overlooked interpretation of entropy. In recent years theoretical and empirical developments have pushed the boundaries of what we understand about entropy, the arrow of time, and the possibility of reversing death through a concept known as the "anti-entropical universe." There is a common misconception about entropy is that it is inherently tied to disorder and chaos when we understand the true nature of entropy, which it makes it a already proven explanation of how resurrecting the dead is possible which was overlooked. The article, which initially appears speculative, is deeply rooted in fundamental physics and emerging experimental data. This article explores the logical and empirical pathways that indicate the possibility of an anti-entropical universe, which could challenge the traditional view of entropy and death itself, elevating this idea to the status of a scientific theory.
Experimental investigation of quantum key distribution with position and momentum of photon pairs
Creators: name: Almeida, M. P.
name: Walborn, S. P.
name: Ribeiro, P. H. Souto
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the utility of Einstein-Podolsky-Rosen correlations of the position and momentum of photon pairs from parametric down-conversion in the implementation of a secure quantum key distribution protocol. We show that security is guaranteed by the entanglement between downconverted pairs, and can be checked by either direct comparison of Alice and Bob's measurement results or evaluation of an inequality of the sort proposed by Mancini et al. (Phys. Rev. Lett. 88, 120401 (2002)).
description: 6 pages, 6 figures, subimitted for publication
The BonaRes repository data publication workflow, tools and support system
Creators: name: Atemkeng, Maureen Fonji
name: Svoboda, Nicolai
name: Tula, Abraham
name: Specka, Xenia
name: Meier, Kristin
Publisher: name: Zenodo
Year: 2023
Subjects: RDM
DSgG

description: The poster gives an overview of the BonaRes (Soil as a sustainable resource for the bioeconomy) repository and its metadata schema. The repository hosts soil, agriculture and ecology data. The data publication service is free of charge and available for any scientist. The repository features state-of-the-art technologies such as DOI-provision, Long-term archiving and a (meta)data curation process for submitted data.
RNNs on Monitoring Physical Activity Energy Expenditure in Older People
Creators: name: Paraschiakos, Stylianos
name: de Sá, Cláudio Rebelo
name: Okai, Jeremiah
name: Slagboom, Eline P.
name: Beekman, Marian
name: Knobbe, Arno
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Human-Computer Interaction (cs.HC)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Through the quantification of physical activity energy expenditure (PAEE), health care monitoring has the potential to stimulate vital and healthy ageing, inducing behavioural changes in older people and linking these to personal health gains. To be able to measure PAEE in a monitoring environment, methods from wearable accelerometers have been developed, however, mainly targeted towards younger people. Since elderly subjects differ in energy requirements and range of physical activities, the current models may not be suitable for estimating PAEE among the elderly. Because past activities influence present PAEE, we propose a modeling approach known for its ability to model sequential data, the Recurrent Neural Network (RNN). To train the RNN for an elderly population, we used the GOTOV dataset with 34 healthy participants of 60 years and older (mean 65 years old), performing 16 different activities. We used accelerometers placed on wrist and ankle, and measurements of energy counts by means of indirect calorimetry. After optimization, we propose an architecture consisting of an RNN with 3 GRU layers and a feedforward network combining both accelerometer and participant-level data. In this paper, we describe our efforts to go beyond the standard facilities of a GRU-based RNN, with the aim of achieving accuracy surpassing the state of the art. These efforts include switching aggregation function from mean to dispersion measures (SD, IQR, ...), combining temporal and static data (person-specific details such as age, weight, BMI) and adding symbolic activity data as predicted by a previously trained ML model. The resulting architecture manages to increase its performance by approximatelly 10% while decreasing training input by a factor of 10. It can thus be employed to investigate associations of PAEE with vitality parameters related to metabolic and cognitive health and mental well-being.
description: For a revised, updated and published version (Jan 2022, open access) refer to the Journal of Data Mining and Knowledge Discovery, DOI https://doi.org/10.1007/s10618-021-00817-w. To make our experiments, scripts and results accessible to other researchers (open-source) we shared our scripts with the published version (Jan 2022)
Additional file 1 of Assessing validity evidence for a serious game dedicated to patient clinical deterioration and communication
Creators: name: Blanié, Antonia
name: Michel-Ange Amorim
name: Meffert, Arnaud
name: Perrot, Corinne
name: Dondelli, Lydie
name: Benhamou, Dan
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: Screenshot of LabForGames Warning serious game.
The BonaRes repository data publication workflow, tools and support system
Creators: name: Atemkeng, Maureen Fonji
name: Svoboda, Nicolai
name: Tula, Abraham
name: Meier, Kristin
Publisher: name: Zenodo
Year: 2023
Subjects: RDM

description: The poster gives an overview of the BonaRes (Soil as a sustainable resource for the bioeconomy) repository and its metadata schema. The repository hosts soil, agriculture and ecology data. The data publication service is free of charge and available for any scientist. The repository features state-of-the-art technologies such as DOI-provision, Long-term archiving and a (meta)data curation process for submitted data.
Parents’ perceptions of an intervention for infants with behavioral sleep problems
Creators: name: Tse, Lillian Po Ling
Publisher: name: University of British Columbia
Year: 2009

description: Between 13% and 35% of infants and young children have experienced behavioural sleep problems. A pilot study, which was entitled: Evaluation of an Intervention Aimed at Resolving Behavioural Sleep Problems in 6-lo-12-month-old Infants: A Pilot Study, was undertaken to evaluate the efficacy of an intervention. My study comprised the qualitative component of the pilot study. The purpose of my study was to explore parents' perceptions about the sleep intervention used in the pilot study and any burden associated with the study. The sleep intervention included: providing parents information about normal infant sleep, controlled comforting, bedtime routines, organized daytime schedules and naps, and completing forms to record routines and controlled comforting. Following a teaching session about the study intervention, each family implemented the intervention which also included bi-weekly follow-up phone calls to offer support. I used a descriptive, exploratory research design. Through purposive sampling, I identified and interviewed 14 families who had completed the intervention. I used inductive content analysis method to analyze the data. Nine themes emerged from my analysis: changes in perspectives about sleep, gaining a framework to tackle sleep problems, unanticipated changes resulting from using the strategies in the study, challenges for parents, fitting intervention strategies into parents' realities, factors interfering with successful interventions, parents' support systems, parents' expectations of the study, and inadvertent benefits of the study. Each theme subsumed a number of sub-themes. The thesis includes implications of these findings for nursing education, practice, and research.
Thresholds of ultraperipheral processes
Creators: name: Dremin, I. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Threshold behavior of the cross sections of ultraperipheral nuclear interactions is studied. Production of $e^+e^-$ and $μ^+μ^-$ pairs as well as $π^0$ and parapositronium is treated. The values of corresponding energy thresholds are presented and the total cross sections of these processes at the newly constructed NICA and FAIR facilities are estimated.
description: 8 pg
Consumer Acceptance of Traffic-light Labelling on Food vs. Financial Products
Creators: name: Drescher, Larissa S.
name: Marette, Stephan
name: Roosen, Jutta
name: Drescher, Larissa S.
name: Marette, Stephan
name: Roosen, Jutta
Publisher: name: Unknown
Year: 2011
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: traffic-light labelling
subject: consumer acceptance
subject: food
subject: financial products
subject: Germany

description: For products with risky characteristics, there are many debates about the best way to inform consumers. Traffic-lights have been already implemented in the UK on food products to guide consumers in making healthier food choices. In response to the recent financial crisis, a discussion about the compulsory usage of traffic-light labels on financial products has started by politicians and media in the UK and Germany. Similarly to foods, a green label on financial products would highlight a positive product attribute level (such as an above average rate of return); yellow that special attention is needed, whereas red would identify an adverse attribute level. This paper presents results of a choice experiment conducted in Germany to evaluate the impact of traffic-light labelling on food purchases in comparison to financial product purchases. Special attention is given to consumers’ involvement level in food and financial product purchases. In general, results indicate that traffic-lights affect consumers’ purchases of both product groups. While the low-fat attribute has no significant impact on food choices without traffic-lights, it has a positive impact on choices once signalled with a traffic-light label. We find that traffic-lights on financial products result in a halo-effect for the variance of returns: without traffic-lights, a product with a high variance of returns is chosen less often but more often if the product is labelled with a traffic-light.
description: Paper removed at the request of the primary author, October 2013. Please contact them for further information.
220 fs Er-Yb:glass laser mode-locked by a broadband low-loss Si/Ge saturable absorber
Creators: name: Grawert, F. J.
name: Akiyama, S.
name: Ilday, F. O.
name: Liu, J.
name: Gopinath, J. T.
name: Shen, H. M.
name: Wada, K.
name: Ippen, E. P.
name: Kimerling, L. C.
name: Kaertner, F. X.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate femtosecond performance of an ultra-broadband high-index-contrast saturable Bragg reflector consisting of a silicon/silicon-dioxide/germanium structure that is fully compatible with CMOS processing. This device offers a reflectivity bandwidth of over 700 nm and sub-picosecond recovery time of the saturable loss. It is used to achieve mode-locking of an Er-Yb:glass laser centered at 1540 nm, generating 220 fs pulses, with the broadest output spectrum to date.
The Implications of Alternative Biofuel Policies on Carbon Leakage
Creators: name: Drabik, Dusan
name: De Gorter, Harry
name: Just, David R.
name: Drabik, Dusan
name: De Gorter, Harry
name: Just, David R.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Resource /Energy Economics and Policy
subject: biofuels
subject: tax credit
subject: mandate
subject: market leakage
subject: carbon leakage
subject: emissions savings
subject: domestic leakage

description: We show carbon leakage depends on the type of biofuel policy (tax credit versus mandate), the domestic and foreign gasoline supply and fuel demand elasticities, and on consumption and production shares of world oil markets for the country introducing the biofuel policy. The components of carbon leakage – market leakage and emissions savings – are counteracting: carbon leakage increases with market leakage but decreases with emissions savings. We also distinguish domestic and international leakage where the latter is always positive, but domestic leakage can be negative with a mandate. The IPCC definition of leakage omits domestic leakage, resulting in biased estimates. Leakage with a tax credit always exceeds that of a mandate, while the combination of a mandate and tax credit generates lower leakage than a tax credit alone. In general, a gallon of ethanol (energy equivalent) is found to replace 35 percent of a gallon of gasoline – not 100 percent as assumed by life-cycle accounting. This means ethanol emits 13 percent more carbon than a gallon of gasoline if indirect land use change (iLUC) is not included in the estimated emissions savings effect and 43 percent more when iLUC is included.
Ground state optimization and hysteretic demagnetization: the random-field Ising model
Creators: name: Alava, Mikko J.
name: Basso, Vittorio
name: Colaiori, Francesca
name: Dante, Lorenzo
name: Durin, Gianfranco
name: Magni, Alessandro
name: Zapperi, Stefano
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We compare the ground state of the random-field Ising model with Gaussian distributed random fields, with its non-equilibrium hysteretic counterpart, the demagnetized state. This is a low energy state obtained by a sequence of slow magnetic field oscillations with decreasing amplitude. The main concern is how optimized the demagnetized state is with respect to the best-possible ground state. Exact results for the energy in d=1 show that in a paramagnet, with finite spin-spin correlations, there is a significant difference in the energies if the disorder is not so strong that the states are trivially almost alike. We use numerical simulations to better characterize the difference between the ground state and the demagnetized state. For d>=3 the random-field Ising model displays a disorder induced phase transition between a paramagnetic and a ferromagnetic state. The locations of the critical points R_c(DS), R_c(GS) differ for the demagnetized state and ground state. Consequently, it is in this regime that the optimization of the demagnetized stat is the worst whereas both deep in the paramagnetic regime and in the ferromagnetic one the states resemble each other to a great extent. We argue based on the numerics that in d=3 the scaling at the transition is the same in the demagnetized and ground states. This claim is corroborated by the exact solution of the model on the Bethe lattice, where the R_c's are also different.
description: 13 figs. Submitted to Phys. Rev. B
A perturbative approach to J mixing in f-electron systems: Application to actinide dioxides
Creators: name: Magnani, N.
name: Santini, P.
name: Amoretti, G.
name: Caciuffo, R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a perturbative model for crystal-field calculations, which keeps into account the possible mixing of states labelled by different quantum number J. Analytical J-mixing results are obtained for a Hamiltonian of cubic symmetry and used to interpret published experimental data for actinide dioxides. A unified picture for all the considered compounds is proposed by taking into account the scaling properties of the crystal-field potential.
description: 16 pages + 4 figures; will appear http://prb.aps.org
LMS (LEARNING MANAGEMENT SYSTEM) LEARNING MANAGEMENT SYSTEM FEATURES
Creators: name: Akhmedova, Zulhumor
name: Rahmatova, Nargisa
Publisher: name: Zenodo
Year: 2024

description: Raising the morale of young people and discovering highly qualified specialists among them is at the center of the strong social policy conducted for the youth, for the future and benefit of the youth in our republic.
Microwave photoconductivity of two-dimensional electron systems with unidirectional periodic modulation
Creators: name: Dietel, J.
name: Glazman, L.
name: Hekking, F.
name: von Oppen, F.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Motivated by the recently discovered microwave-induced ``zero-resistance'' states in two-dimensional electron systems, we study the microwave photoconductivity of a two-dimensional electron gas (2DEG) subject to a unidirectional static periodic potential. The combination of this potential, the classically strong magnetic field, and the microwave radiation may result in an anisotropic negative conductivity of the 2DEG. Similar to the case of a smooth random potential, two mechanisms contribute to the negative photoconductivity. The displacement mechanism arises from electron transitions due to disorder-assisted microwave absorption and emission. The distribution-function mechanism arises from microwave-induced changes in the electron distribution. However, the replacement of a smooth random potential by the unidirectional one, leads to different relative strengths of the two contributions to the photoconductivity. The distribution function mechanism dominates the photoconductivity in the direction of the static potential modulation, while both mechanisms contribute equally strongly to the photoconductivity in the perpendicular direction. The unidirectionality of the static potential simplifies greatly the evaluation of the photoconductivities, which follow directly from Fermi's golden rule.
description: 19 pages, 3 figures
Additional file 1 of A combined individual and group-based stabilization and skill training intervention versus treatment as usual for patients with long lasting posttraumatic reactions receiving outpatient treatment in specialized mental health care – a study protocol for a randomized controlled trial
Creators: name: K. H. Holgersen
name: I. Brønstad
name: M. Jensen
name: H. Brattland
name: S. K. Reitan
name: A. M. Hassel
name: M. Arentz
name: M. Lara-Cabrera
name: A. E. Skjervold
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. SPIRIT 2013 checklist.
Cost Analysis for Water Distribution in Agriculture
Creators: name: Dono, Gabriele
name: Giraldo, Luca
name: Dono, Gabriele
name: Giraldo, Luca
Publisher: name: Unknown
Year: 2011
Subjects: subject: Resource /Energy Economics and Policy
subject: irrigation
subject: water pricing
subject: Translog
subject: cost analysis

description: This paper uses a Translog form to estimate the water distribution cost for an irrigation consortium. The consortium operates under conditions of the under-utilization of facilities; thus, to achieve full cost recovery, water charges must be set at a higher level than efficiency. As a consequence, farmers may decide to reduce their use of the public irrigation service and instead exploit groundwater. The estimated Translog function explains the costs of water services throughout the irrigated area, and identifies items for which pricing does not accentuate the competition between the use of surface water and groundwater. Based on the estimated coefficients, a hypothesis is hence presented for pricing water provided by the consortium.
Cancellation theorem for motivic spaces with finite flat transfers
Creators: name: Bachmann, Tom
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics

description: We show that the category of motivic spaces with transfers along finite flat morphisms, over a perfect field, satisfies all the properties we have come to expect of good categories of motives. In particular we establish the analog of Voevodsky's cancellation theorem.
description: 14 pages v2: minor corrections (mostly typos) v3: final version
Additional file 1 of The addition of an amylopectin/chromium complex to branched-chain amino acids enhances muscle protein synthesis in rat skeletal muscle
Creators: name: Komorowski, James R.
name: Ojalvo, Sara Perez
name: Sylla, Sarah
name: Hakki Tastan
name: Orhan, Cemal
name: Tuzcu, Mehmet
name: Sahin, Nurhan
name: Sahin, Kazim
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1 : Figure S1. Western Blot bands for mammalian target of rapamycin (mTOR), ribosomal protein S6 kinase beta-1 (S6K1), eukaryotic translation initiation factor 4E-binding protein 1 (4E-BP1), and β-actin levels.