cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Unipolar and bipolar fatigue in antiferroelectric lead zirconate thin films and evidences for switching-induced charge injection inducing fatigue
Creators: name: Lou, X. J.
name: Wang, J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: For the first time, we show that unipolar fatigue does occur in antiferroelectric capacitors, confirming the predictions of a previous work [Appl. Phys. Lett., 94, 072901 (2009)]. We also show that unipolar fatigue in antiferroelectrics is less severe than bipolar fatigue if the driving field is of the same magnitude. This phenomenon has been attributed to the switching-induced charge injection, the main cause for polarization fatigue in ferroelectric and antiferroelectric materials. Other evidences for polarization fatigue caused by the switching-induced charge injection from the nearby electrode rather than the charge injection during stable/quasi-stable leakage current stage are also discussed.
description: 10 pages and 2 figures
Histone synthesis during early development of Xenopus laevis (the South African clawed toad)
Creators: name: Byrd, Earl William
Publisher: name: University of British Columbia
Year: 2011

description: Histones are the basic proteins complexed with DNA in the chromosomes of eucaryotic organisms. The synthesis of histones and their nuclear accumulation was followed during early embryogenesis in Xenopus laevis, the South African clawed toad. Histone synthesis was first examined in total cell homogenates of Xenopus laevis embryos. Electrophoretic and chromatographic experiments indicate that histone synthesis takes place during the cleavage and swimming embryo stages of development in Xenopus laevis. Furthermore, the major classes of histones (I, II and III and IV) made during these different stages appear to be qualitatively the same, as shown by electrophoresis on polyacrylamide gels and by Amberlite chromatography, and include histones similar to those found in adult somatic tissues of this amphibian. Experiments utilizing polyacrylamide gels show that these proteins coelectrophorese with known histone markers I, Ilb1, and III from trout testes and histone IV from peas. Individual basic proteins were purified from 8M urea-2M LiCl extracts of total embryo protein by carboxymethyl cellulose chromatography and separated by Amberlite chromatography. The amino acid composition of the Amberlite peaks from swimming embryos indicates that these peaks contain histones comparable to those of other vertebrate species. Rechromatography of the first lysine-rich peak on Amberlite with a very shallow guanidine hydrochloride gradient resolved this peak into a ribosomal contaminant and at least three lysine-rich fractions in swimming embryos, suggesting that there is microheterogeneity in Xenopus laevis histone I. The synthesis and nuclear accumulation of early embryonic histones was examined next. Histones were isolated from nuclear chromatin preparations of pre-gastrula embryos and swimming tadpoles and subjected to acrylamide gel electrophoresis and amino acid analysis. Histone synthesis was demonstrated by the incorporation of ¹⁴C02 into the amino acid residues of acid hydrolyzed proteins. Gel electrophoresis indicated that each of the major groups of histones was synthesized in pre-gastrula embryos, as well as in later stages, and incorporated into nuclear chromatin. These newly synthesized embryo histones were similar to those in adult Xenopus laevis, when compared by gel electrophoresis and amino acid analysis. ftctinomycin D pulse-labeling experiments utilizing the incorporation of ³H-lysine into partially dissociated blastulae showed a 20 fold decrease of histone synthesis in Actinomycin D treated embryos from that of sibling controls when these basic proteins were separated by Amberlite chromatography. These data suggest that histones are synthesized almost entirely from newly made mRNA after stages 5 to 6 in the embryo. On the whole, these observations on histone synthesis and the role of maternal template in pre- and post-gastrula Xenopus development are in general agreement with most of the findings in sea urchin embryos.
Additional file 2 of Construction of a high-density genetic map and detection of a major QTL of resistance to powdery mildew (Erysiphe necator Sch.) in Caucasian grapes (Vitis vinifera L.)
Creators: name: Possamai, Tyrone
name: Wiedemann-Merdinoglu, Sabine
name: Merdinoglu, Didier
name: Migliaro, Daniele
name: De Mori, Gloria
name: Cipriani, Guido
name: Velasco, Riccardo
name: Testolin, Raffaele
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Figure S1. Distributions of the phenotypic data related to E. necator resistance of the cross populations.
New multi-sample nonparametric tests for panel count data
Creators: name: Balakrishnan, N.
name: Zhao, Xingqiu
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62G10 (Primary) 62G20 (Secondary)

description: This paper considers the problem of multi-sample nonparametric comparison of counting processes with panel count data, which arise naturally when recurrent events are considered. Such data frequently occur in medical follow-up studies and reliability experiments, for example. For the problem considered, we construct two new classes of nonparametric test statistics based on the accumulated weighted differences between the rates of increase of the estimated mean functions of the counting processes over observation times, wherein the nonparametric maximum likelihood approach is used to estimate the mean function instead of the nonparametric maximum pseudo-likelihood. The asymptotic distributions of the proposed statistics are derived and their finite-sample properties are examined through Monte Carlo simulations. The simulation results show that the proposed methods work quite well and are more powerful than the existing test procedures. Two real data sets are analyzed and presented as illustrative examples.
description: Published in at http://dx.doi.org/10.1214/08-AOS599 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Búmeran ludomusical
Creators: name: Porta-Pérez, Alberto
Publisher: name: Journal of Sound, Silence, Image and Technology
Year: 2023

description: Esta investigación analiza las composiciones musicales de Final Fantasy VII Remake (Square-Enix, 2020) y cómo el búmeran ludomusical ha contribuido en el diseño narrativo y sonoro del videojuego. Para ello, se ha aplicado un análisis comparativo entre este título y su original lanzado en 1997, así como con los diferentes productos transme[1]diáticos que han contribuido a la evolución sonora durante más de veinte años, a destacar: la precuela videolúdica, Crisis Core: Final Fantasy VII (Square-Enix, 2007); el largometraje, Final Fantasy VII: Advent Children Complete (Tetsuya Nomura, 2009); o los conciertos con gira internacional, Distant Worlds: Music From Final Fantasy (AWR Music Productions, 2007-). La construcción de la estrategia media-mix, propia de Japón, ha permitido que entenda[1]mos Final Fantasy VII como un amplio universo transmedia cuyas narrativas —y bandas sonoras— se han desplegado y reelaborado en diferentes medios hasta integrarse nuevamente a la capa ludonarrati[1]va del remake. En esta investigación se han analizado dos de las composiciones más distinguidas de la entrega, “J-E-N-O-V-A - Quickening” y “One-Winged Angel - Rebir[1]th”, con el objetivo de demostrar cómo el búmeran ludomusical contribuye a la inmersión del relato y al enriquecimiento de la experiencia de juego, siempre dependien[1]do del grado de alfabetización lúdica y musical mediática del jugador.
description: Journal of Sound, Silence, Image and Technology, Núm. 6 (2023)
Layered superconductors as negative-refractive-index metamaterials
Creators: name: Rakhmanov, A. L.
name: Yampol'skii, V. A.
name: Fan, J. A.
name: Capasso, Federico
name: Nori, Franco
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We analyze the use of layered superconductors as anisotropic metamaterials. Layered superconductors can have a negative refraction index in a wide frequency range for arbitrary incident angles. Indeed, low-Tc (s-wave) superconductors allow to produce artificial heterostructures with low losses for T<
description: 4 pages, 2 figures
La escucha del ojo
Creators: name: García Quiñones, Marta
Publisher: name: Journal of Sound, Silence, Image and Technology
Year: 2023

description: En la introducción a La escucha del ojo. Un recorrido por el sonido y el cine, Marina Hervás — profesora de historia de la música en la Universidad de Granada, filósofa, violinista e in[1]cansable promotora del pensamiento sobre la música y el sonido en multitud de formatos — argumenta que su libro no es ni una historia de la música y el sonido en el cine, ni un es[1]tudio sistemático de sus funciones, ni una propuesta de nuevos modelos teóricos, ni un ma[1]nual de recursos pedagógicos (p. 9). ¿Qué sería, entonces? 
description: Journal of Sound, Silence, Image and Technology, Núm. 6 (2023)
Public participation in forest management in Thailand : a case study of Sanepong Village, Kanchanaburi Province
Creators: name: Srisarin, R
Publisher: name: University Of Tasmania
Year: 2023

description: This thesis investigates some aspects of public participation by villagers in Sanepong village, Thailand, in forest management. As a tribal community living in the forests for more than 200 years, this group of Karen people have developed their traditions and culture, along with a subsistence economy, in the surrounding forests. The thesis shows how the community has developed distinctive ways of participation in forest management. The Thai Government, especially since the 1991 declaration of the Thung Yai - Hauy Khakaeng World Heritage Area that covers forests traditionally used by Sanepong villagers, has attempted to move the community out. On the other hand, during recent years there have been countervailing forces resulting in efforts by the Government, and others such as non-government organisations, environmentalists, and academics to improve national forestry management, resulting in a trend to decentralise forest resource management to the local level as well as to revive community rights. Community forestry has become an alternative to involve people in forest management. While communities reafforest, maintain, and protect the forests, on the one hand, they can benefit from them through forest products and services, on the other. The thesis case study of Sanepong shows the hierarchical village social structures which relate to public participation. The communal sense of commitment and individual villager commitment sustain villager involvement in forest management and conservation. They employ adaptive mechanisms to improve their forest management, and hope to gain recognition from the government sector for the legitimacy of their management role and for their rights of continued occupation of the forests. Sanepong is in the western sector of the World Heritage Area, in the Thung Yai Naresuan Wildlife Sanctuary. The management of this World Heritage Area has to recognise the importance of community forestry roles. The thesis results suggest that, to achieve effective public participation in forest management in such a traditional society, community forestry projects have to recognise the importance of traditions, culture, social structures, and their relationships with respect to the forests and forest management. Participation has to be accommodated in all processes in management activities, with reference to local initiatives, planning, decision-making, implementation, and evaluation. The understanding of the forest ecosystem by the local villagers, as part of the ecosystem themselves, if given expression through this participatory management, can work in favour of achieving a better quality of life for the local villagers and may be the best way of conserving biodiversity and environmental integrity in the long run.
Long-term variability of radio-bright BL Lacertae objects
Creators: name: Nieppola, E.
name: Hovatta, T.
name: Tornikoski, M.
name: Valtaoja, E.
name: Aller, M. F.
name: Aller, H. D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Radio-bright BL Lacertae objects (BLOs) are typically variable and exhibit prominent flaring. We use a sample of 24 BLOs to get a clear idea of their flaring behavior and to find possible commonalities in their variability patterns. Our goal was to compare the results given by computational time scales and the observed variability parameters determined directly from the flux curves. Also, we wanted to find out if the BLO flares adhere to the generalized shock model. We use long-term monitoring data from 4.8, 8, 14.5, 22, 37, 90 and 230 GHz. The structure function, discrete correlation function and Lomb-Scargle periodogram time scales, calculated in a previous study, are analyzed in more detail. We determine flare durations, rise and decay times, absolute and relative peak fluxes from the monitoring data. We find that BLOs demonstrate a wide range of variability behavior. BLOs include sources with fast and strong variability, such as OJ 287, PKS 1749+096 and BL Lac, but also sources with more rolling fluctuations like PKS 0735+178. The most extreme flares can last for up to 13 years or have peak fluxes of approximately 12 Jy in the observer's frame. When the Doppler boosting effect is taken into account, the peak flux of a flare does not depend on the duration of the flare. A rough analysis of the time lags and peak flux evolution indicates that BLO flares in the mm - cm wavelengths are high-peaking, i.e., are in the adiabatic stage. Thus, the results concur with the generalized shock model.
description: Published in the Astronomical Journal
Cross-fostering for the conservation of rat-kangaroos (Marsupialia: Potoroidae)
Creators: name: Sterneberg, B
Publisher: name: University Of Tasmania
Year: 2023

description: Cross-fostering is an assisted reproductive method that has been used to improve the_ productivity of endangered marsupial fauna. Pouch young from endangered species are transferred to the pouch of related common species, allowing the donor female to produce further offspring without going through the entire lactation cycle. In this project I tested the applicability of cross-fostering in rat-kangaroos (family Potoroidae) using the Tasmanian bettong (Bettongia gaimardt) and the Longnosed potoroo (Potorous tridacty/us) as model species. The effect of a 'transfer age difference' (TAD) between transferred young was investigated to determine the most beneficial time for pouch young transfer: optimising both the mother's reproductive rate and young's survival to independence. Thirty two young were transferred, 18 intra-species and 14 inter-species. The transfers were carried out at various stages of pouch life (1 to 11 weeks) with TADs ranging from 0 to 3 weeks. Nutritional analyses were undertaken on 460 milk samples. Growth measurements and development data were obtained for 110 bettong and 46 potoroo young. The effect of cross-fostering on species specific behaviour patterns was investigated using both video-recordings and direct observations. Twenty one young survived and 19 subsequently bred successfully. Milk composition and production rates did not appear to be affected by transfers. Comparisons of growth rates between cross-fostered and either fostered or untransferred young showed an advantage for cross-fostered potoroos and a disadvantage for cross-fostered bettong. These were most pronounced during the period between pouch vacation and weaning. During asynchronous intraspecies transfers the younger of the two transferees grew faster than untransferred bettong young. The magnitude of both these effects increased with TAD up to an age difference of three weeks when growth related problems appeared. Although cross-fostered young were influenced by transfer mothers' behaviour, they developed normal pecies-specific behaviour. Difficulties in reuniting cross-fostered young with their own species were probably a consequence of different levels of sociability in the two species. At maturity, all surviving transfer young were successful in both mate recognition and production of offspring. Growth and development of the transfer young are affected by the design of the fransfer procedure. The combination of species, temperament and experience of the transfer mother; the age of young at transfer arid the TAD all affect the outcome. The accessibility of the young in the pouch enables progress monitoring and, where required, early intervention for repeated transfers and/or hand-rearing. Recommendations for the management of transfer animals in captivity are provided.
Additional file 5 of Construction of a high-density genetic map and detection of a major QTL of resistance to powdery mildew (Erysiphe necator Sch.) in Caucasian grapes (Vitis vinifera L.)
Creators: name: Possamai, Tyrone
name: Wiedemann-Merdinoglu, Sabine
name: Merdinoglu, Didier
name: Migliaro, Daniele
name: De Mori, Gloria
name: Cipriani, Guido
name: Velasco, Riccardo
name: Testolin, Raffaele
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 5: Figure S4. Genetic maps marker order and distances compared to marker physical position on grape reference genome.
Available states and available space: Static properties that predict dynamics of confined fluids
Creators: name: Goel, Gaurav
name: Krekelberg, William P.
name: Pond, Mark J.
name: Mittal, Jeetain
name: Shen, Vincent K.
name: Errington, Jeffrey R.
name: Truskett, Thomas M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Although density functional theory provides reliable predictions for the static properties of simple fluids under confinement, a theory of comparative accuracy for the transport coefficients has yet to emerge. Nonetheless, there is evidence that knowledge of how confinement modifies static behavior can aid in forecasting dynamics. Specifically, molecular simulation studies have shown that the relationship between excess entropy and self diffusivity of a bulk equilibrium fluid changes only modestly when the fluid is isothermally confined, indicating that knowledge of the former might allow semi-quantitative predictions of the latter. Do other static measures, such as those that characterize free or available volume, also strongly correlate with single-particle dynamics of confined fluids? Here, we study this issue for both the single-component hard-sphere fluid and hard-sphere mixtures. Specifically, we use molecular simulations and fundamental measure theory to study these systems at approximately $10^3$ equilibrium state points. We examine three different confining geometries (slit pore, square channel, and cylindrical pore) and the effects of packing fraction and particle-boundary interactions. Although density fails to predict some key qualitative trends for the dynamics of confined fluids, we find that a new generalized measure of available volume for inhomogeneous fluids strongly correlates with the self diffusivity across a wide parameter space in these systems, approximately independent of the degree of confinement. An important consequence, which we demonstrate here, is that density functional theory predictions of this static property can be used together with knowledge of bulk fluid behavior to estimate the diffusion coefficient of confined fluids under equilibrium conditions.
description: 19 pages, 6 figures
Performance comparison of stereo and RGB sensors for UAV collision avoidance
Creators: name: Hlyvko, Andrii
Publisher: name: No Publisher Supplied
Year: 2020

description: Over the past years there have been many different approaches that have shown significant progress towards solving the challenging problem of collision avoidance for UAVs. These approaches range from SLAM to machine learning. Machine learning approaches are promising because the model learns to perform a complex task using training data instead of someone having to develop a complex and task-specific controller. In machine learning approaches we can choose whether to train in simulation or on real data. Collecting real-world UAV collision data is very time consuming and can result in a damaged UAV. On the other hand, synthetic data and real-world data come from different distributions so training using synthetic data introduces a gap between the learned distribution and the actual one, which can result in poor performance. Even though this distribution gap exists, training in simulation saves time and cost of training, making these approaches the focus of this study. Usually due to UAV size and weight constrains we can only choose one sensor for performing obstacle avoidance. Therefore, we need to select a sensor that would give the best performance when a model is trained in simulation. Many different sensors can be chosen for performing UAV collision avoidance, such as RGB, stereo, LIDAR, among others. Even if a sensor can be accurately simulated, the data it produces might not contain sufficient information for performing collision avoidance well. For instance, a sonar can be very accurately simulated but it does not contain sufficient information about the state of the environment required to avoid complex shapes. The hypothesis is that a model that is trained entirely in simulation is going to perform differently in the real-world depending on what simulated sensor was used for training. In this thesis we train using different simulated sensors to demonstrate the hypothesis that real-world performance with a model trained entirely in simulation improves when an appropriate sensor is chosen for training. Even though we cannot confirm that one sensor outperforms others for every single machine learning approach, we obtain experimental data for a few methods to support our claim. RGB cameras are one of the simplest and most widely used sensors for drone sense and avoid. On the other hand, stereo sensors are bulky and require high computing power to produce real-time results useful for collision avoidance in drones. This has changed with recent advances in stereo sensors and computing, which has made it possible to use them in micro-aerial vehicles for real-time operation [1]. Therefore, these two sensors are the most suitable for our study. In this thesis we compare how much performance do we gain, if any, by training on a simulated stereo system instead of a simulated RGB camera for obstacle avoidance using machine learning approaches.
Reflectionless PT-symmetric potentials in the one-dimensional Dirac equation
Creators: name: Cannata, Francesco
name: Ventura, Alberto
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study the one-dimensional Dirac equation with local PT-symmetric potentials whose discrete eigenfunctions and continuum asymptotic eigenfunctions are eigenfunctions of the PT operator, too: on these conditions the bound-state spectra are real and the potentials are reflectionless and conserve unitarity in the scattering process. Absence of reflection makes it meaningful to consider also PT-symmetric potentials that do not vanish asymptotically.
description: 24 pages, to appear in J. Phys. A : Math. Theor; one acknowledgement and one reference added
Electrical Characterization of Conductive Threads for Textile Electronics
Creators: name: Stavrakis, Adrian K.
name: Simić, Mitar
name: M. Stojanovic, Goran
Publisher: name: figshare
Year: 2022
Subjects: subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In recent years, advancements in technology are constantly driving the miniaturization of electronic devices, not only in the renowned domain of Internet-of-Things but also in other fields such as that of flexible and textile electronics. As the latter forms a great ecosystem for new devices, that could be functional such as heating garments or sensory, many suppliers have already started producing and bringing to market conductive threads that can be used by researchers and the mass public for their work. However, to date, no extensive characterization has been carried out with respect to the electrical performance of such threads and that is what this article is aiming to amend. Four commercially available threads by two different suppliers were put under test, to establish their limitations in terms of maximum power handling, both continuous and instantaneous. They were subsequently examined at a microscopic scale as well, to verify any potential caveats in their design, and any hidden limitations. A preliminary profile for each of the four threads was successfully established.
Mental hygiene
Creators: name: NO INDIVIDUAL AUTHOR
Publisher: name: University of Oregon
Year: 1932
Subjects: subject: Mental Health
subject: FOS: Psychology

description: Out of this movement of investigation into the workings of the mental life of man has grown the modern science of psychology. Like all sciences, psychology may be separated into several fields. This paper aims to trace the progress in one of those fields, namely, mental hygiene. The development of mental hygiene has been so closely allied to the growth of the National Committee of Mental Hygiene that the development of the former will be traced through the latter.
The shallow shelf approximation as a "sliding law" in a thermomechanically coupled ice sheet model
Creators: name: Bueler, Ed
name: Brown, Jed
Publisher: name: arXiv
Year: 2008
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: The shallow shelf approximation is a better ``sliding law'' for ice sheet modeling than those sliding laws in which basal velocity is a function of driving stress. The shallow shelf approximation as formulated by \emph{Schoof} [2006a] is well-suited to this use. Our new thermomechanically coupled sliding scheme is based on a plasticity assumption about the strength of the saturated till underlying the ice sheet in which the till yield stress is given by a Mohr-Coulomb formula using a modeled pore water pressure. Using this scheme, our prognostic whole ice sheet model has convincing ice streams. Driving stress is balanced in part by membrane stresses, the model is computable at high spatial resolution in parallel, it is stable with respect to parameter changes, and it produces surface velocities seen in actual ice streams.
description: 12 pages of text; 4 tables; 27 figures; submitted to JGR Earth Surface
Towards an Intelligent System for Risk Prevention and Management
Creators: name: Kebair, Fahem
name: Serin, Frederic
Publisher: name: arXiv
Year: 2009
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: Making a decision in a changeable and dynamic environment is an arduous task owing to the lack of information, their uncertainties and the unawareness of planners about the future evolution of incidents. The use of a decision support system is an efficient solution of this issue. Such a system can help emergency planners and responders to detect possible emergencies, as well as to suggest and evaluate possible courses of action to deal with the emergency. We are interested in our work to the modeling of a monitoring preventive and emergency management system, wherein we stress the generic aspect. In this paper we propose an agent-based architecture of this system and we describe a first step of our approach which is the modeling of information and their representation using a multiagent system.
description: 11 pages
Additional file 4 of Construction of a high-density genetic map and detection of a major QTL of resistance to powdery mildew (Erysiphe necator Sch.) in Caucasian grapes (Vitis vinifera L.)
Creators: name: Possamai, Tyrone
name: Wiedemann-Merdinoglu, Sabine
name: Merdinoglu, Didier
name: Migliaro, Daniele
name: De Mori, Gloria
name: Cipriani, Guido
name: Velasco, Riccardo
name: Testolin, Raffaele
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 4: Figure S3. Parental genetic maps.
Horava-Lifshitz f(R) Gravity
Creators: name: Kluson, J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This paper is devoted to the construction of new type of f(R) theories of gravity that are based on the principle of detailed balance. We discuss two versions of these theories with and without the projectability condition.
description: 22 pages, references added
DARAXT NOMLARI BILAN BOG'LIQ O'XSHATISHLARNING LINGVOMADANIY XUSUSIYATLARI
Creators: name: Xudayarova, Solihaposhsho
Publisher: name: Zenodo
Year: 2023

description: Ushbu maqolada o‘zbek tilidagi daraxt komponentli o‘xshatishlarning o‘ziga xos xususiyatlari haqida so‘z yuritiladi. Insonning tashqi ko‘rinishi, holatini ifodalashda daraxt komponentli o‘xshatishlarning ahamiyati ochib beriladi.,
Encountering landscapes : an exploration of environment specific learning on an extended journey
Creators: name: Stewart, Alistair
Publisher: name: University Of Tasmania
Year: 2023

description: The purpose of this study was to gain a greater understanding of the role the physical environment plays in shaping experience and learning in an outdoor education context. In February of 2001, students undertaking the Bachelor of Arts (Outdoor Education) at La Trobe University, Bendigo, spent 18 days bushwalking through the Kosciuszko National Park in New South Wales. The journey traversed three relatively different environments: the alpine regions of Mt Jagungal through to Mt Kosciuszko on the Main Range; the sub-alpine areas of The Chimneys and The Pilot; and the hot, dry, rain shadow area of the Snowy River. Drawing on the journals of 19 respondents, this qualitative project details the participants' multiple and diverse experiences and learning. Responses describe the environment providing a context for experience and learning, the factors that impacted on the experience of place, and critical thought and reflection as a consequence of experience. The findings reveal that the places encountered by respondents were not merely a backdrop but rather played a significant role in shaping the experience and learning opportunities. The findings also highlight the many contingent factors that may impact upon the experience of place. Aspects of the literature reviewed supported the findings but also drew attention to the lack of research that has been conducted in outdoor education addressing the place dependent nature of experience and learning. The findings of this project suggest that outdoor education is contingent upon place, each place having unique attributes, characteristics and history that shape the context of experience and learning.
Genetic control of the teratogenic response to acetazolamide in mice
Creators: name: Biddle, Frederick Gordon
Publisher: name: University of British Columbia
Year: 2011

description: Acetazolamide is a potent carbonic anhydrase inhibitor and a known teratogen. In mice, it Induces a specific postaxial ectrodactyly of the right forelimb; occasionally the left forelimb is also affected. No other malformations are produced by this drug except fetal death with high doses. The SWV strain of mice was found to be resistant to any teratogenic or embryotoxic action of acetazolamide. Very high doses resulted in death of the SWV dam. The teratogenic action and dose-response relationship of acetazolamide were documented for the sensitive CBA/J strain. Mid-day 10 was found to be the embryo sensitive stage for the induction of forelimb ectrodactyly. With an appropriate acetazolamide dosage regime of two injections on day 10 of pregnancy, a genetic analysis was made of the teratogenic sensitivity of the CBA/J strain and resistance of the SWV strain. Reciprocal crosses between the two demonstrated that resistance was dominant to sensitivity. No affected SWV.CBA F₁ hybrids were found in SWV dams but a low frequency of ectrodactyly was found among CBA.SWV F₁ hybrids in CBA/J dams. This disparity may be due to small sample size of the treated SWV.CBA F₁ hybrids and was not considered to be a differential influence of the dams. A backcross program was set up using the CBA/J dam throughout. Both a biometrlcal analysis and an examination of the mean frequencies of ectrodactyly in each generation suggested that three independently segregating loci controlled the trait of embryonic sensitivity to the teratogenic action of acetazolamlde. From this model, the predicted BC₃ generation mean frequency of ectrodactyly was achieved in a further breeding program. Also, the CBA/J inbred strain frequency of ectrodactyly was recovered with two BG₂ sires and this suggested that the CBA/J genotype had been recovered. It was found that induction of ectrodactyly and fetal death were two separate actions of acetazolamlde. The embryo transfer technique was used in a preliminary investigation of the CBA/J and SWV strain responses to acetazolamlde. It was demonstrated that the teratogenic environment does exist in the SWV dam after acetazolamide administration and that resistance of this strain is a property of the embryo. The sensitivity and resistance of the CBA/J and SWV strains remained with dlchlorphenamide, another ectrodactyly inducing carbonic anhydrase Inhibitor. It is suggested that SWV may have a general resistance to this .class of teratogens. The results of this study are discussed in the light of other investigations of the mechanism of acetazolamide teratogenesls as well as in the context of other studies of genetic variation in teratogenic responses.
A Universal Stellar Initial Mass Function? A Critical Look at Variations
Creators: name: Bastian, Nate
name: Covey, Kevin R.
name: Meyer, Michael R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Few topics in astronomy initiate such vigorous discussion as whether or not the initial mass function (IMF) of stars is universal, or instead sensitive to the initial conditions of star formation. The distinction is of critical importance: the IMF influences most of the observable properties of stellar populations and galaxies, and detecting variations in the IMF could provide deep insights into the process by which stars form. In this review, we take a critical look at the case for IMF variations, with a view towards whether other explanations are sufficient given the evidence. Studies of the field, local young clusters and associations, and old globular clusters suggest that the vast majority were drawn from a "universal" IMF: a power-law of Salpeter index ($Γ=1.35$) above a few solar masses, and a log normal or shallower power-law ($Γ\sim 0-0.25$) between a few tenths and a few solar masses (ignoring the effects of unresolved binaries). The shape and universality of the IMF at the stellar-substellar boundary is still under investigation and uncertainties remain large, but most observations are consistent with a IMF that declines ($Γ< -0.5$) well below the hydrogen burning limit. Observations of resolved stellar populations and the integrated properties of most galaxies are also consistent with a "universal IMF", suggesting no gross variations in the IMF over much of cosmic time. There are indications of "non-standard" IMFs in specific local and extragalactic environments, which clearly warrant further study. Nonetheless, there is no clear evidence that the IMF varies strongly and systematically as a function of initial conditions after the first few generations of stars.
description: 49 pages, 5 figures, to appear in Annual Reviews of Astronomy and Astrophysics (2010, volume 48)
Deliverable D5.3 Final report on Padua demonstration execution
Creators: name: Altobelli, Emiliano
name: Mariorenzi, Luca
Publisher: name: Zenodo
Year: 2023

description: The aim of the Deliverable 5.3 “Final report on Padua Demonstration execution” is to present the timeline and details of preparation and execution of Padua Demonstration taking place as a part of the IP4MaaS project within the framework of the Shift2Rail Joint Undertaking. The demonstrated technologies were selected functionalities of the Travel Companion application. IP4MaaS executed demonstration activities, monitoring their progress, and assessing their results in terms of effectiveness and user satisfaction. Those activities were enhanced by co-creation and collaboration activities between different partners, thus making IP4MaaS a point of reference for holistic demo execution.The demonstration consisted in testing the Travel Companion application on a group of recruited testers who got a link to download and install the Travel Companion application. The testers of the demo were selected based on evaluations of the most frequent travellers using public transport in the area. In our case, the demo team focused on passengers travelling to and from Padua. In particular, the demo team specifically targeted male and female students of the Ca' Foscari University of Venice. The testers have been proactively trained in order to understand how to participate and get the necessary instructions for the demo and provided feedback on the selected functionalities using the online questionnaire form.The deliverable aims to provide a description of what was the process that led to the physical execution of the demo. It focuses on the organizational and co-ordination phases that saw the involvement of various actors as well as collaboration with project partners.
Pedagogical applications of the one-dimensional Schrödinger's equation to proximity effect systems: Comparison of Dirichlet and Neumann boundary conditions
Creators: name: Broussard, P. R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Proximity effect systems in superconducting films can be modeled by a one-dimensional Schrödinger equation. Several systems are studied using Dirichlet and Neumann boundary conditions. It is observed that the two boundary conditions have a dramatic effect on the lowest eigenstate allowed in these systems, and points to unusual behavior for solutions of Schrödinger's equation in certain potential wells and proximity effect systems.
description: 10 pages, 7 figures. To be published in American Journal of Physics
Magnetic phagocyte biosensing framework for point-of-care sepsis diagnostics and monitoring
Creators: name: Norton, Corey Benjamin
Publisher: name: No Publisher Supplied
Year: 2020

description: Sepsis, a potentially deadly immunoresponse to infection, is a major concern in hospitals in the United States. Current laboratory processes used to diagnose and monitor sepsis are costly, time-consuming, or only provide a small piece of information about the complex condition. In order to develop specific individualized treatments for septic patients that do not heavily depend on the use of broad-spectrum antibiotics, a clinician must be provided with both pathogen information about the underlying infection and patient immunoresponse information. While there has been considerable progress towards biosensor designs that can provide pathogen information, there is still a significant demand for designs that can provide immunoresponse information.The design of a novel biosensing framework has been proposed for gathering information about a patient’s phagocytes, critical components of the innate immune system that protect the body from infection. The design is composed of electrical, microfluidic, and magnetic subsystems that work together to produce a distinct electrical signature signifying the presence of functional phagocytes in a human blood sample. The device has been simulated, fabricated, and experimentally tested using 17 blood samples collected from patients suspected of bacterial infections. Furthermore, two pattern recognition neural networks were developed to analyze and classify the experimental data. One network detects the presence of functional phagocytes in a biological sample with 88.2% accuracy, and the other network diagnoses sepsis with 88.2% accuracy by analyzing these functional phagocytes. This novel framework presents the potential to reduce the mortality rate of sepsis by allowing for earlier diagnosis and treatment.
Catalytic oxidative coupling of methane to C\\(_2\\) hydrocarbon
Creators: name: Nordin, MR
Publisher: name: University Of Tasmania
Year: 2023

description: In this work the direct conversion of methane to C\\(_2\\) hydrocarbons through the catalytic oxidative coupling reaction (nCH\\(_4\\) + y/2 0\\(_2\\) => C\\(_n\\)H\\(_{4n-2y}\\) + y H\\(_2\\)0) is investigated. The catalytic materials studied can be categorised as single chemical compounds, different loading of Li\\(_2\\)CO\\(_3\\) on MgO, various lithium salts on MgO, Li\\(_2\\)CO\\(_3\\) on various metal oxides, transition metal oxides on MgO and transition metal oxides on Li\\(_2\\)CO\\(_3\\)/Mg0 systems. Most of these materials were prepared by wet aggregation or impregnation methods and precalcined at 900\\(^o\\)C for 10 hours. Atomic absorption spectroscopy was used to determine the metal composition of these materials. Their nature after calcination was studied by SEM and X-ray Micro-Probe Analysis. Surface area measurements and XRD analysis were also performed on most of the catalytic materials. The nature of selected materials under conditions similar to the catalytic studies were monitored by FTTR, ESCA and TGA. Changes occurring on the material during the reaction were simulated and studied in situ by FTIR techniques. A conventional flow reactor operating under atmospheric pressure was used in the activity determinations. The effects of reaction temperature, reactant composition, CO partial pressure in reactant flow and time-on-stream were investigated. The decomposition of azomethane under the conditions of the catalytic studies was also performed in order to determine if similar product distributions can be achieved. The precalcination was found to cause large physical and chemical changes on some materials. Segregation of Li\\(_2\\)CO\\(_3\\) on the Li\\(_2\\)CO\\(_3\\) /Mg0 based catalysts occurred resulting in the enrichment of this component on the surface. Considerable transformation also occurred on these catalysts during the catalytic reaction. Various materials were found to be active for the oxidation of methane and generally a chemically basic material formed a better oxidative coupling catalyst. The surface area of these materials did not determine whether they were active for the oxidative reaction but for an active material, good oxidative coupling behaviour was associated with small surface area. It was noted that materials with a reducible oxidation state favoured the exhaustive oxidation reaction while the addition of Li\\(_2\\)CO\\(_3\\) increased the oxidative coupling properties accompanied by the reduction in available redox sites. An \intrinsic limit\" for the C\\(_2\\) hydrocarbon yield was also observed while the results of azomethane experiments agreed with the proposal of the occurrence of methyl radicals coupling reactions in the gaseous phase."
CAG: a real-time low-cost enhanced-robustness high-transferability content-aware adversarial attack generator
Creators: name: Phan, Van Nhat Huy
Publisher: name: No Publisher Supplied
Year: 2020

description: Deep neural networks (DNNs) are vulnerable to adversarial attack despite their tremendous success in many artificial intelligence fields. Adversarial attack is a method that causes the intended misclassfication by adding imperceptible perturbations to legitimate inputs. To date, researchers have developed numerous types of adversarial attack methods. However, from the perspective of practical deployment, these methods suffer from several drawbacks such as long attack generating time, high memory cost, insufficient robustness and low transferability. To address the drawbacks, we propose a Content-aware Adversarial Attack Generator (CAG) to achieve real-time, low-cost, enhanced-robustness and high-transferability adversarial attack. First, as a type of generative model-based attack, CAG shows significant speedup (at least 500 times) in generating adversarial examples compared to the state-of-the-art attacks such as PGD and C&W. Furthermore, CAG only needs a single generative model to perform targeted attack to any targeted class. Because CAG encodes the label information into a trainable embedding layer, it differs from prior generative model-based adversarial attacks that use $n$ different copies of generative models for $n$ different targeted classes. As a result, CAG significantly reduces the required memory cost for generating adversarial examples. Moreover, CAG can generate adversarial perturbations that focus on the critical areas of input by integrating the class activation maps information in the training process, and hence improve the robustness of CAG attack against the state-of-art adversarial defenses. In addition, CAG exhibits high transferability across different DNN classifier models in black-box attack scenario by introducing random dropout in the process of generating perturbations. Extensive experiments on different datasets and DNN models have verified the real-time, low-cost, enhanced-robustness, and high-transferability benefits of CAG.
Additional file 9 of Construction of a high-density genetic map and detection of a major QTL of resistance to powdery mildew (Erysiphe necator Sch.) in Caucasian grapes (Vitis vinifera L.)
Creators: name: Possamai, Tyrone
name: Wiedemann-Merdinoglu, Sabine
name: Merdinoglu, Didier
name: Migliaro, Daniele
name: De Mori, Gloria
name: Cipriani, Guido
name: Velasco, Riccardo
name: Testolin, Raffaele
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 9: Figure S5 Representative phenotypes at the stereomicroscope of seedlings resistant and susceptible to E. necator.