cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A phenomenological model for particle dispersion and clustering
Creators: name: Resvanis, Kyriakoulis
Publisher: name: Imperial College London
Year: 2015

description: The objective of this thesis is to propose a new model for particle dispersion and clustering for use within an (unsteady)-Reynolds Averaged Navier-Stokes ((u)RANS) computational framework. The need for an improved model stems from industrial requirements to address certain limitations of the currently used models. Namely, low predicted particle entrance into recirculation zones for particles with large Stokes numbers and unrealistically spatial and temporal uniform predicted particle concentrations. Abstract The literature review presented within this thesis examines the various computational tools available for modeling the Lagrangian phase and identifies Kinematic Simulations (KS) as potentially capable of reproducing accurate Lagrangian statistics and particle clustering across a range of physical scales while at the same time requiring a modest increase of computational resources relative to the presently used methods. Abstract The thesis proposes a combination of (u)RANS and KS in a coupled Eulerian-Lagrangian framework.The (u)RANS calculations will be responsible for modeling the large coherent motions while the KS will be employed to model the effects of all the other scales, that are represented statistically in the (u)RANS context, on particle motion. In other words, the representation of the velocity field within the `eddies' will be simulated by tracking a particle through an isotropic turbulent field constructed with the aid of KS. The extent of scales and the energy content of the isotropic field modeled by KS at every instance is determined by the local properties of the under-resolved `eddy' as determined by the Eulerian framework. Abstract The proposed model is evaluated on an axisymmetric sudden expansion test case through comparisons with experimental results, LES calculations as well as RANS simulations employing the current industry standard dispersion model. Improved overall performance was observed with significant differences between the particle trajectories computed with the proposed model and those with a model widely used in industry. This last point is of particular significance as one of the limitations of the currently used models was the high degree of spatial uniformity in the predicted particle distribution.
Spectral study of MWC560. Parameters of the system, the hot source and the jets
Creators: name: Panferov, A. A.
name: Fabrika, S. N.
name: Tomov, T.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Results of spectroscopy of unusual symbiotic star MWC560 are presented. The data have been obtained from autumn 1990 to spring 1993. The high velocity absorption line profiles demonstrate their origin in a jet, directed closely to the line of sight. These absorptions are variable at a time-scale less than one day and with an amplitude of about 10%. The fast variability of the absorption line profiles at 3 hours have been observed. An evidence of the opposite (second) jet has been found. An estimates of the orbital inclination angle about 10 deg and the jets parameters have been derived. We have simulated the continuum spectrum from UV to IR in the two different states (high and low) of MWC560. The observed spectrum is formed in a M4-5III giant, a hot source and in an absorbing screen (the jet). The object luminousity 2 10^37 erg/s is mainly from the UV source, whose temperature and size are 20000 K and 4 10^11 cm. The hot source is probably a photosphere of a massive wind (2 10^-6 M of Sun/year) rising from inner area aroung the white dwarf. We suppose that both the wind and jets are accelerated in magnetic field of the white dwarf, which accretes the gas from the giant wind as a propeller. The gas flows in accretion disk and is expelled from that by the rotating magnetic field. A sectorial structure of the outflow (jets) is formed. A surface magnetic field strength on the white dwarf is 3 10^8 G < B < 3 10^9 G, its rotational period is from 10-20 minutes to 3 hours.
description: 17 pages, 2 tables, 5 figures
Polarisation microscopy of single emitters
Creators: name: Clegg, James
Publisher: name: Imperial College London
Year: 2015

description: This thesis contains a report on the development of a new type of confocal microscope. The microscope aims to allow the user to be able to determine the three dimensional orientation of single fluorescent emitters. The microscope has at its heart a binary spatial light modulator that allows us to control the excitation electric field in the pupil of the microscope objective. This allows us to exploit the fact that the excitation of, and emission from, a single fluorescent emitter is polarisation and orientation dependent. By changing the field in the excitation pupil we can generate a set of images that when taken together can be analysed to find the emitter orientation. We show that the microscope allows us to resolve the orientation of single fluorescent molecules and nitrogen vacancy centres in nanodiamond. We designed the microscope from scratch using extensive mathematical modelling techniques. We anticipate that these models will be useful to other researchers. One example is that our model of the polarisation distortions introduced during scanning is relevant to any galvanometer-based scanning system. We also developed a full model of a confocal microscope that includes the dipole-like nature of many samples. We use this to calculate, amongst other things, the optical sectioning properties of confocal microscopes. This allows us to validate previous models that ignored polarisation distortions of high numerical aperture lenses and also to make calculations where previous models would have been inadequate, for example in calculating the sectioning strength of sheets of aligned dipoles. As well as developing numerical models, we invented a new method for controlling the polarisation of light using a binary spatial light modulator. This work has applications in materials science, and industrial applications.
Additional file 7 of Schisandra chinensis bee pollen’s chemical profiles and protective effect against H2O2-induced apoptosis in H9c2 cardiomyocytes
Creators: name: Shi, Peiying
name: Geng, Qianqian
name: Chen, Lifu
name: Du, Tianyu
name: Lin, Yan
name: Lai, Rongcai
name: Meng, Fei
name: Wu, Zhenhong
name: Miao, Xiaoqing
name: Yao, Hong
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 7:. Effect of adenosine, guanosine, uridine and nitrogen-containing quininic acid derivatives on H2O2-induced H9c2 myocardial cell injury, respectively.
Programming microbes to treat superbug infection
Creators: name: Wong, Choon Kit Adison
Publisher: name: Imperial College London
Year: 2014

description: Superbug infection is one of the greatest public health threat with grave implications across all levels of society. Towards a new solution to combat infection by multi-drug resistant bacteria, this thesis presents an engineering framework and genetic tools applied to repurpose commensal bacteria into “micro-robots” for the treatment of superbug infection. Specifically, a prototype of designer probiotic was developed using the human commensal bacteria Escherichia coli. The engineered commensal was reprogrammed with user-specified functions to sense superbug, produced pathogen-specific killing molecules and released the killing molecules via a lytic mechanism. The engineered commensal was effective in suppressing ~99% of planktonic Pseudomonas and preventing ~ 90% of biofilm formation. To enhance the sensing capabilities of engineered commensal, genetic interfaces comprising orthogonal AND & OR logic devices were developed to mediate the integration and interpretation of binary input signals. Finally, AND, OR and NOT logic gates were networked to generate a myriad of cellular logic operations including half adder and half subtractor. The creation of half adder logic represents a significant advancement of engineering human commensal to be biological equivalent of microprocessor chips in programmable computer with the ability to process input signals into diversified actions. Importantly, this thesis provides exemplary case studies to the attenuation of cellular and genetic context dependent effects through principles elucidated herein, thereby advancing our capability to engineer commensal bacteria.
Additional file 1: of Analysis of porcine body size variation using re-sequencing data of miniature and large pigs
Creators: name: C. Reimer
name: C.-J. Rubin
name: A. Sharifi
name: N.-T. Ha
name: S. Weigend
name: K.-H. Waldmann
name: O. Distl
name: S. Pant
name: M. Fredholm
name: M. Schlather
name: H. Simianer
Publisher: name: figshare
Year: 2018
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Plant Biology

description: Figure S1. Multi-Dimensional-Scaling of the distance matrix underlying the phylogenetic tree, based on chromosomes 1, 8 and 13. (DOCX 95 kb)
Erinaceus Linnaeus, 1758, gen. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Erinaceomorpha
Erinaceidae
Erinaceus

description: Erinaceus [gen. nov.]
Dentes Primores II, paralleli, subcuneati, longiores, distantes: superiores remotiores.
Laniarii II ubique, antrorsum decumbentes, parvi.
Molares III s. IV acuti, lobati.
Corpus spinis obtectum.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 52, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Large off-shell effects in the $\bar{D}^*$ contribution to $B \to \bar{D} ππ$ and $B \to \bar{D} π\bar{\ell} ν_{\ell}$ decays.}}
Creators: name: Le-Yaouanc, A.
name: Leroy, J. -P.
name: Roudeau, P.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We stress that, although the $D^*$ is very narrow (one hundred of keV), the difference between the full $D^*$ contribution to $B \to \bar{D} ππ$ and its zero width limit, which stems from the resonance tail, is surprisingly large~: several percents. This phenomenon is a general effect which appears when considering the production of particles that are coupled to an intermediate virtual state, stable or not, and it persists whether the width is large or not. The effects of various cuts and of the inclusion of damping factors at the strong and weak vertices are discussed. It is shown how the zero width limit, needed to compare with theoretical expectations, can be extracted. One also evaluates the virtual $D^*_V$ contribution, which comes out roughly as expected from theory, but which is however much more dependent on cuts and uncontrollable "off-shell" effects. We suggest a way to estimate the impact of the damping factors.
description: 26 pages, 7 figures. Second version with corrected numbers in tables, minor corrections and one Appendix added
Algorithms and architectures for MCMC acceleration in FPGAs
Creators: name: Mingas, Grigorios
Publisher: name: Imperial College London
Year: 2015

description: Markov Chain Monte Carlo (MCMC) is a family of stochastic algorithms which are used to draw random samples from arbitrary probability distributions. This task is necessary to solve a variety of problems in Bayesian modelling, e.g. prediction and model comparison, making MCMC a fundamental tool in modern statistics. Nevertheless, due to the increasing complexity of Bayesian models, the explosion in the amount of data they need to handle and the computational intensity of many MCMC algorithms, performing MCMC-based inference is often impractical in real applications. This thesis tackles this computational problem by proposing Field Programmable Gate Array (FPGA) architectures for accelerating MCMC and by designing novel MCMC algorithms and optimization methodologies which are tailored for FPGA implementation. The contributions of this work include: 1) An FPGA architecture for the Population-based MCMC algorithm, along with two modified versions of the algorithm which use custom arithmetic precision in large parts of the implementation without introducing error in the output. Mapping the two modified versions to an FPGA allows for more parallel modules to be instantiated in the same chip area. 2) An FPGA architecture for the Particle MCMC algorithm, along with a novel algorithm which combines Particle MCMC and Population-based MCMC to tackle multi-modal distributions. A proposed FPGA architecture for the new algorithm achieves higher datapath utilization than the Particle MCMC architecture. 3) A generic method to optimize the arithmetic precision of any MCMC algorithm that is implemented on FPGAs. The method selects the minimum precision among a given set of precisions, while guaranteeing a user-defined bound on the output error. By applying the above techniques to large-scale Bayesian problems, it is shown that significant speedups (one or two orders of magnitude) are possible compared to state-of-the-art MCMC algorithms implemented on CPUs and GPUs, opening the way for handling complex statistical analyses in the era of ubiquitous, ever-increasing data.
Using argumentation to improve classification in natural language problems
Creators: name: Carstens, Lucas
Publisher: name: Imperial College London
Year: 2016

description: Argumentation has proven successful in a number of domains, including multi-agent systems and decision support in medicine and engineering. We propose its application to a domain yet largely unexplored by argumentation research: computational linguistics. Over the past decade or so advances in this field have commonly relied on data-driven solutions, i.e. machine learning. Recently, however, there appears to be a growing consent that, in order to achieve significant advances in certain areas of artificial intelligence, in general, and computational linguistics, in particular, we may need to consider data-driven approaches in unison with reasoning-, logic- and rule-based solutions. To this end we have developed a novel classification methodology that incorporates reasoning through argumentation with supervised classifiers. We train classifiers and then argue about the validity of their output. To do so we identify arguments that formalise prototypical knowledge of a problem and use them to correct misclassifications. We thus have at our disposal multiple ways of incorporating knowledge in classification and are able to integrate knowledge as it becomes available, without the need to retrain classifiers. We illustrate our methodology on two tasks. On the one hand we address binary cross-domain sentiment polarity classification, where we train classifiers on one corpus, e.g. Tweets, to identify positive/negative polarity, and classify instances from another corpus, e.g. sentences from movie reviews. On the other hand we address a form of argumentation mining that we call Relation-based Argumentation Mining, where we classify pairs of sentences based on whether the first sentence attacks or supports the second, or whether it does neither. Whenever we find that one sentence attacks/supports the other we consider both to be argumentative, irrespective of their stand-alone argumentativeness. For both tasks we improve classification performance when using our methodology, compared to using standard classifiers, only.
Additional file 6: of The use of low-cost Android tablets to train community health workers in Mukono, Uganda, in the recognition, treatment and prevention of pneumonia in children under five: a pilot randomised controlled trial
Creators: name: OâDonovan, James
name: Kabali, Kenneth
name: Taylor, Celia
name: Chukhina, Margarita
name: Kading, Jacqueline
name: Fuld, Jonathan
name: OâNeil, Edward
Publisher: name: figshare
Year: 2018
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: Univariate analysis and regression analysis. (PDF 107 kb)
Recursive Estimation of Dynamic RSS Fields Based on Crowdsourcing and Gaussian Processes
Creators: name: Santos, Irene
name: Murillo-Fuentes, Juan José
name: Djurić, Petar M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, we address the estimation of a time-varying spatial field of received signal strength (RSS) by relying on measurements from randomly placed and not very accurate sensors. We employ a radio propagation model where the path loss exponent and the transmitted power are unknown with Gaussian priors whose hyper-parameters are estimated by applying the empirical Bayes method. We consider the locations of the sensors to be imperfectly known, which entails that they represent another source of error in the model. The propagation model includes shadowing which is considered to be a zero-mean Gaussian process where the correlation of attenuation between two spatial points is quantified by an exponential function of the distance between the points. The location of the transmitter is also unknown and estimated from the data with a weighted centroid approach. We propose to estimate time-varying RSS fields by a recursive Bayesian method and crowdsourcing. The method is based on Gaussian processes (GP), and it produces the joint distribution of the spatial field. Further, it summarizes all the acquired information by keeping the size of the needed memory bounded. We also present the Bayesian Cramér-Rao bound (BCRB) of the estimated parameters. Finally, we illustrate the performance of our method with experimental results on synthetic data sets.
description: This manuscript has been submitted to IEEE Transactions on Signal Processing on May 11, 2018; revised on August 9, 2018 and November 15, 2018; accepted on December 10, 2018
Erinaceus europaeus Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Erinaceomorpha
Erinaceidae
Erinaceus
Erinaceus europaeus

description: Erinaceus europaeus [spec. nov.]
Erinaceus. Fn. sv. 16. Syst. nat. 6. It. Goth. 264.
Echinus s. Erinaceus terrestris. Gesn. quadr. 368. Aldr. quadr. 459. Jonst. quadr. 119. t. 68. Raj. quadr. 231. Seb. mus. 1. p. 78. t. 49. f. 1. 8.
Habitat in Europa.
Mitis, ambrosiacus, polyphagus, nocturnus, monogamus, hybernans, nidificans e Musco in fruticibus, metu se contrahens, naribus cristatis.
Anatome E. N. C. d. 2. an. obs. 65. & an. 6. obs. 105. & cent. 10. app. 447. Barth. act. 1671. n. 90.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 52, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Laser speckle contrast detection of acoustic radiation force response
Creators: name: Li, Sinan
Publisher: name: Imperial College London
Year: 2015

description: Light and ultrasound are both non-ionizing radiations, ideal for biomedical applications. Recent studies on combining ultrasound and light for biomedical imaging show new promises in improving imaging quality and/or providing complementary imaging contrast. Among a variety of the imaging modalities that simultaneously use ultrasound and light, this work focuses on optical detection of tissue responses to acoustic radiation force (ARF). The applications include optical shear wave elastography and ultrasound modulated optical tomography. The first half of the thesis provides a systematic study on tracking shear waves in optical turbid media using CCD-based laser speckle contrast analysis. The theory, simulation and experiment are developed and cross-validated. The simulation quantitatively relates CCD speckle contrast signal with shear waves, providing useful information to understand the underlying physics. In addition, multiple shear waves are tracked using laser speckle contrast detection. Results show that two counter-propagating shear waves produce a modulation pattern in the optical signal, and the modulation pattern was suggested by simulation as a result of the dual shear wave interference. Shear wave speed measurements in phantoms suggest that the dual shear wave approach is more accurate than the single shear wave approach as that the standard deviation of the speed measurement is reduced by a factor of at least 2. The the dual shear wave approach also provides a reduced boundary effect. Both factors suggest that the dual shear wave approach should improve the accuracy of elasticity measurements. In the second half of the thesis, instead of detecting ARF response in the late phase, the study is motivated by detecting ARF response in the early stage for enhancement of ultrasound modulation of light. A pilot study on incorporating perfluorocarbon-based phase change contrast agent with ultrasound modulated optical tomography is explored. To understand the phase transition process, a quantitative measurement of acoustic nanodroplet vapourisation is developed. A preliminary result also showed that a single ultrasound burst can simultaneously vaporise the nanodroplets and sonify the converted microbubbles to provide additional ultrasound modulation of light. This additional light modulation was shown to increase the laser speckle contrast signal detected on a CCD camera.
Large-area flexible electronics based on low-temperature solution-processed oxide semiconductors
Creators: name: Lin, Yen-Hung
Publisher: name: Imperial College London
Year: 2015

description: Due to their high charge carrier mobility, optical transparency and mechanical flexibility, thin-film transistors (TFTs) based on metal oxide semiconductors represent an emerging technology that offers the potential to revolutionise the next-generations of large-area electronics. This thesis focuses on the development of high-performance TFTs based on low-temperature, solution-processed metal oxide semiconductors that are compatible with inexpensive flexible plastic substrates. The first part of the dissertation describes an ultraviolet light assisted processing method suitable for room-temperature activation of ZnO nanoparticles and their application as semiconducting channels in TFTs. The impact of the semiconductor/dielectric interface on electrical performance is studied using different device configurations and dielectric surface-passivation methods. Furthermore, a nanocomposite concept is proposed in order to assist electron transport between different crystalline domains. Using this approach, TFTs with electron mobilities of ~3 cm2/Vs are demonstrated. The second part of this work explores a carbon-free, aqueous-based Zn-ammine complex route for the synthesis of polycrystalline ZnO thin-films at low temperature and their subsequent use in TFTs. Concurrently, the development of a complementary high-κ oxide dielectric system enables the demonstration of high-performance ZnO TFTs with electron mobilities >10 cm2/Vs and operation voltage down to ~1.2 V. This low-temperature aqueous chemistry is further explored using a facile n-type doping approach. Enhancement in electrical performance is attributed to the different crystallographic properties of the Al-doped ZnO layers. The final part of the thesis introduces a novel TFT concept that exploits the enhanced electron transport properties of low-dimensional polycrystalline quasi-superlattices (QSLs), consisting of sequentially spin-cast layers of In2O3, Ga2O3 and ZnO deposited at temperatures <200 °C. Optimised oxide QSL transistors exhibit electron mobility values of >40 cm2/Vs - an order of magnitude higher than devices based on single binary oxide layers. Based on temperature dependent electron transport and capacitance-voltage measurements, it is reasoned that the enhanced electrical performance arises from the presence of quasi two-dimensional electron gas-like systems formed at the carefully engineered oxide heterointerfaces buried within the QSLs.
Talpa Linnaeus, 1758, gen. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Soricomorpha
Talpidae
Talpa

description: Talpa [gen. nov.]
Dentes Primores superiores VI.
Inferiores VIII.
Laniarii major I, & minores IV.
Molares acuminati.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 52, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Macromagnetic simulation for reservoir computing utilizing spin dynamics in magnetic tunnel junctions
Creators: name: Furuta, Taishi
name: Fujii, Keisuke
name: Nakajima, Kohei
name: Tsunegi, Sumito
name: Kubota, Hitoshi
name: Suzuki, Yoshishige
name: Miwa, Shinji
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The figures-of-merit for reservoir computing (RC), using spintronics devices called magnetic tunnel junctions (MTJs), are evaluated. RC is a type of recurrent neural network. The input information is stored in certain parts of the reservoir, and computation can be performed by optimizing a linear transform matrix for the output. While all the network characteristics should be controlled in a general recurrent neural network, such optimization is not necessary for RC. The reservoir only has to possess a non-linear response with memory effect. In this paper, macromagnetic simulation is conducted for the spin-dynamics in MTJs, for reservoir computing. It is determined that the MTJ-system possesses the memory effect and non-linearity required for RC. With RC using 5-7 MTJs, high performance can be obtained, similar to an echo-state network with 20-30 nodes, even if there are no magnetic and/or electrical interactions between the magnetizations.
Fusion for neutrons
Creators: name: McNamara, Steven
Publisher: name: Imperial College London
Year: 2016

description: This thesis addresses the application of fusion as a powerful source of energetic neutrons. The conditions for maximising fusion power density, Pf, in a neutral beam fuelled plasma are determined and used to inform a high Pf device optimisation procedure. Restrictions on the externally applied power, not previously considered, are shown to be a crucial factor in determining the optimum plasma and reactor conditions. Two distinct regimes of operation exist, separated by a discontinuity in the optimum conditions. In one regime, beam-on-target reactions dominate and Pf is maximised when operating with a pure tritium target plasma. The optimum confinement is lower than that required for high gain operation but the energy multiplication is limited to Qf~1. Fast alpha particles, if confined, reduce Pf by a factor (1+0.2Qf)^-1, but leave Qf unchanged. In the second regime, thermonuclear reactions make a significant contribution to Pf, allowing for higher energy gain but requiring improved confinement. Alpha particle heating reduces Pf by around 20% but increases Qf. By considering established tokamak stability constraints the optimum plasma conditions are used to inform a high Pf device design. The model provides a framework for simplifying and informing what would otherwise be a perplexing search for the optimal reactor configuration and allows areas of particular interest to high Pf operation to be identified. A novel tokamak operating regime - the isothermal tokamak - is investigated. An analytic equilibrium is derived and the resulting density and current profiles found to be notably different from those of a conventional device. A model of the anomalous transport due to the trapped electron mode instability is derived. Simultaneous solutions to the MHD and transport equilibria are shown to only exist for relatively shallow density profiles.
Talpa europaea Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Soricomorpha
Talpidae
Talpa
Talpa europaea

description: Talpa europaea [spec. nov.]
T. caudata, pedibus pentadactylis.
Talpa caudata. Syst. nat. 7. Faun. svec. 17. It. Scan. 332.
Talpa. Gesn. quadr. 931. Aldrov. digit. 451. Raj. quadr. 236. Seb. mus. 1. p. 68. t. 41. fig. 1, 4.
Habitat in Europae humosis sub terra, victitans e Lumbricis, non plantis, noctu praedatur.
Anatome. E. N. C. d. 1. a 2. obs. 51. & d 2. a 1. obs. 130.
Penis omnium animalium longissimus. Pellis delicatula.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 52, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
The Global Star Formation Rate from the 1.4 GHz Luminosity Function
Creators: name: Cram, L. E.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The decimetric luminosity of many galaxies appears to be dominated by synchrotron emission excited by supernova explosions. Simple models suggest that the luminosity is directly proportional to the rate of supernova explosions of massive stars averaged over the past 30 Myr. The proportionality may be used together with models of the evolving 1.4 GHz luminosity function to estimate the global star formation rate density in the era z < 1. The local value is estimated to be 0.026 solar masses per year per cubic megaparsec, some 50% larger than the value inferred from the Halpha luminosity density. The value at z ~ 1 is found to be 0.30 solar masses per year per cubic megaparsec. The 10-fold increase in star formation rate density is consistent with the increase inferred from mm-wave, far-infrared, ultra-violet and Halpha observations.
description: 10 pages, 2 figures, Astrophysical Journal Letters (in press); new PS version has improved figure placement
Transitions from low-density state towards high-density state in stochastic bistable plasma-condensate systems
Creators: name: Dvornichenko, A. V.
name: Kharchenko, V. O.
name: Kharchenko, D. O.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this article we study transitions from low-density states towards high-density states in bistable plasma-condensate systems. We take into account an anisotropy in transference of adatoms between neighbour layers induced by the electric field near substrate. We derive the generalized one-layer model by assuming that the strength of the electric field is subjected to both periodic oscillations and multiplicative fluctuations. By studying the homogeneous system we discuss the corresponding mean passage time. In the limit of weak fluctuations, we show the optimization of the mean passage time with variation in the frequency of periodic driving in the non-adiabatic limit. Noise induced effects corresponding to asynchronization and acceleration in the transition dynamics are studied in detail.
description: 8 pages, 4 figures
Large-scale structure formation for power spectra with broken scale invariance
Creators: name: Kates, R.
name: Müller, V.
name: Gottlöber, S.
name: Mücket, J. P.
name: Retzlaff, J.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have simulated the formation of large-scale structure arising from COBE-normalized spectra computed by convolving a primordial double-inflation perturbation spectrum with the CDM transfer function. Due to the broken scale invariance ('BSI') characterizing the primordial perturbation spectrum, this model has less small-scale power than the (COBE-normalized) standard CDM model. The particle-mesh code (with $512^3$ cells and $256^3$ particles) includes a model for thermodynamic evolution of baryons in addition to the usual gravitational dynamics of dark matter. It provides an estimate of the local gas temperature. In particular, our galaxy-finding procedure seeks peaks in the distribution of gas that has cooled. It exploits the fact that ``cold" particles trace visible matter better than average and thus provides a natural biasing mechanism. The basic picture of large-scale structure formation in the BSI model is the familiar hierarchical clustering scenario. We obtain particle in cell statistics, the galaxy correlation function, the cluster abundance and the cluster-cluster correlation function and statistics for large and small scale velocity fields. We also report here on a semi-quantitative study of the distribution of gas in different temperature ranges. Based on confrontation with observations and comparison with standard CDM, we conclude that the BSI scenario could represent a promising modification of the CDM picture capable of describing many details of large-scale structure formation.
description: 15 pages, Latex using mn.sty, uuencoded compressed ps-file with 15 figures by anonymous ftp to ftp://ftp.aip.de/incoming/mueller/bsi.uu
Additional file 2 of Schisandra chinensis bee pollen’s chemical profiles and protective effect against H2O2-induced apoptosis in H9c2 cardiomyocytes
Creators: name: Shi, Peiying
name: Geng, Qianqian
name: Chen, Lifu
name: Du, Tianyu
name: Lin, Yan
name: Lai, Rongcai
name: Meng, Fei
name: Wu, Zhenhong
name: Miao, Xiaoqing
name: Yao, Hong
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 2:. (−)ESI-Q-TOF MS/MS spectra of peaks 9 (A), 12 (B) and 14 (C).
Initial performance of the high sensitivity alpha particle detector at the Yangyang underground laboratory
Creators: name: Ha, C.
name: Adhikari, G.
name: Adhikari, P.
name: Jeon, E. J.
name: Kang, W. G.
name: Kim, B. H.
name: Kim, H.
name: Kim, Y. D.
name: Kim, Y. H.
name: Lee, H. S.
name: Lee, J. H.
name: Lee, M. H.
name: Leonard, D. S.
name: Olsen, S. L.
name: Park, J. S.
name: Yong, S. H.
name: Yoon, Y. S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Initial performance of the UltraLo-1800 alpha particle detector at the 700 m deep Yangyang underground laboratory in Korea is described. The ionization detector uses Argon as a counting gas for measuring alpha events of a sample. We present initial calibration results and low-activity sample measurements based on the detector's pulse discrimination method and a hardware veto. A likelihood analysis that shows a separation of a bulk component from a surface component with a contamination depth from $^{210}$Po alpha particles using simulated models is presented.
description: 14 pages, 11 figures, nima accepted
The Implications and trade-offs of near-port ship emissions reduction policies
Creators: name: Zis, Thalis
Publisher: name: Imperial College London
Year: 2015

description: Maritime shipping is considered the most efficient mode of transport in economic and environmental terms. However, its impacts on climate change through greenhouse gas emissions and on human health from air pollutants released near residential centres cannot be ignored. Over the last decades, regulatory bodies have been developing policies that seek to further improve the sector’s environmental performance and at the same time new technologies improve the efficiency of vessels. Operational practices of shipliners and port authority initiatives are also relieving the sector’s impacts. While there has been significant research on the environmental impacts of maritime transport, there has been relatively little work focusing on the effects of maritime activity in the proximity and at ports. This thesis presents a transferable framework that allows the estimation of emissions pollutant generation near the port focusing on CO2, SO2, NOx and BC emissions. The most relevant emissions reduction actions are considered and their effects on the environmental footprint of the port are modelled. The thesis emphasizes on the implementation of speed reduction programmes near the port, use of cold ironing at berth, and the effects of fuel quality regulation, considering the perspectives of the port authority, and the ship operator. The thesis considers the emerging environmental and economic trade-offs due to the different emissions reduction actions. A non-linear convex optimization model is formulated that minimizes fuel consumption in a sequence of port calls where in some areas speed limits or fuel regulations are in place. The results show that there is no universal port policy that can simultaneously minimize the environmental impact of all ships without economic or environmental penalties. This indicates that there is great scope of improvement in existing policies, and that regulators will need to decide what their priorities should be in improving the system. The achievements of this thesis can be beneficial to policy makers, port authorities, and shipping companies that wish to improve their environmental performance without sustaining environmental and economic penalties to do so.
Quantum Anomalous Hall Insulator Stabilized By Competing Interactions
Creators: name: Sur, Shouvik
name: Gong, Shou-Shu
name: Yang, Kun
name: Vafek, Oskar
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the quantum phases driven by interaction in a semimetal with a quadratic band touching at the Fermi level. By combining the density matrix renormalization group (DMRG), analytical power expanded Gibbs potential method, and the weak coupling renormalization group, we study a spinless fermion system on a checkerboard lattice at half-filling, which has a quadratic band touching in the absence of interaction. In the presence of strong nearest-neighbor ($V_1$) and next-nearest-neighbor ($V_2$) interactions, we identify a site nematic insulator phase, a stripe insulator phase, and a phase separation region, in agreement with the phase diagram obtained analytically in the strong coupling limit (i.e. in the absence of fermion hopping). In the intermediate interaction regime, we establish a quantum anomalous Hall phase in the DMRG as evidenced by the spontaneous time-reversal symmetry breaking and the appearance of a quantized Chern number $C = 1$. For weak interaction, we utilize the power expanded Gibbs potential method that treats $V_1$ and $V_2$ on equal footing, as well as the weak coupling renormalization group. Our analytical results reveal that not only the repulsive $V_1$ interaction, but also the $V_2$ interaction (both repulsive and attractive), can drive the quantum anomalous Hall phase. We also determine the phase boundary in the $V_1$-$V_2$ plane that separates the semimetal from the quantum anomalous Hall state. Finally, we show that the nematic semimetal, which was proposed for $|V_2| \gg V_1$ at weak coupling in a previous study, is absent, and the quantum anomalous Hall state is the only weak coupling instability of the spinless quadratic band touching semimetal.
description: 25 pages, 19 figures
Ausencia de un Estado nación en Noticia de un secuestro (1996), a partir de un periodo de macrocriminalidad (dos últimos decenios del siglo XX en Colombia)
Creators: name: Jesús Miguel Delgado Del Aguila
Publisher: name: Zenodo
Year: 2022
Subjects: Historia de Colombia
Gabriel García Márquez
Noticia de un secuestro
Estado nación
macrocriminalidad
análisis multidisciplinario
posboom

description: Esta investigación retoma la obra de Gabriel García Márquez, Noticia de un secuestro (1996), con la volición de cuestionar la idea de Estado nación que está inmersa en el libro. Para ello, es necesario entender que la naturaleza del texto exige un conocimiento amplio al lector o al intérprete, puesto que su contenido revela datos multidisciplinarios. Además, es insoslayable realizar un análisis discursivo de la historia de ese contexto y cotejar con pasajes del mismo libro. Para facilitar esta labor, la extrapolación de conceptos del teórico Luis Rodríguez Manzanera será de utilidad, ya que él despliega definiciones de Criminología, un tema frecuente en la obra. Verbigracia, la macrocriminalidad, una noción que él postula, permite que se comprenda la complexión del periodo histórico finisecular del siglo XX en Colombia, etapa que le corresponde a Noticia de un secuestro. Por otro lado, es menester dilucidar que este estudio no se reduce a lo literario, lo histórico y lo criminológico, sino que abarca distintas disciplinas, por lo que la exigencia en la consolidación epistemológica e interpretativa estará demostrada consuetudinariamente, sin obviar la inmanencia de la obra. Este tipo de análisis interdisciplinarios ya ha sido trabajado desde los Estudios Culturales, tal como se constata en las investigaciones de Richard Johnson (2000) o Néstor García Canclini (1997). De igual modo, el intento de establecer lineamientos y conexiones entre disciplinas como las de Literatura y Derecho ya ha sido desarrollado por Stanley Fish (1986), Faustino Martínez (2005), Carlos Pérez (2006) y Denise Schalet (2014). A diferencia de estos abordajes ya estudiados, el objetivo de esta investigación es detectar y fundamentar cómo se articula una propuesta ideológica desde una configuración que reanuda elementos históricos y literarios. En específico, lo que se busca es argumentar por qué fracasó implícitamente un proyecto sociopolítico de democracia y progreso, a partir de un panorama de violencia, narcoterrorismo, corrupción, negociaciones ilícitas, transgresión a los derechos humanos e inseguridad ciudadana. Con todo ello, esta tesis de maestría terminará siendo fructuosa para análisis postremos de discursos que tienen como esencia un soporte multidisciplinario.
Unravelling the targets of electrophilic natural products in cancer with chemical proteomics
Creators: name: Clulow, James
Publisher: name: Imperial College London
Year: 2015

description: Electrophilic natural products that are found in dietary sources such as curcumin, piperlongumine and sulforaphane have attracted considerable interest on account of their broad range of biological activities, leading to their assessment as therapeutics for a number of diseases. Despite extensive research, the mode of action and biological targets of these compounds remain poorly understood. These compounds are clearly not ‘single target’ molecules; dissecting their complex polypharmacology to determine the key targets and pathways presents a major challenge, and has limited progress in the clinic. In this study, a chemical proteomics approach using activity-based probes (ABPs) based on these small molecules has been applied to allow the profiling of their molecular targets in breast cancer cellular systems, identifying the range and relative importance of targets that these molecules bind to covalently, across the entire system in an unbiased way for the very first time. Hundreds of high confidence targets have been unravelled, providing the most comprehensive protein target set for curcumin, piperlongumine and sulforaphane to date. Translation of these targets to the mode(s) of action displayed by these compounds reveals new mediators that help to explain their anticancer effects. The previous limited target information has been a major hindrance in determining how best to apply such electrophilic natural products as therapeutics. These studies address this void and help to provide greater clarity into the underlying mechanisms of curcumin, piperlongumine and sulforaphane, as well as electrophilic natural products more generally.
Talpa asiatica Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Soricomorpha
Talpidae
Talpa
Talpa asiatica

description: Talpa asiatica [spec. nov.]
T. ecaudata, palmis tridactylis.
Talpa sibirica versicolor. Seb. mus. 1. p. 51. t. 32. f. 4, 5.
Habitat in Sibiria.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 53, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Carex maritima Gunnerus, Fl. Norveg.
Creators: name: Jiménez-Mejías, Pedro
name: Alegría-Olivera, J. José
name: Beltrán, Hamilton W.
name: Cano, Asunción
name: Granda-Paucar, Arturo
name: Maldonado Fonkén, Mónica S.
name: Riva-Regalado, Sebastián
name: Ruthsatz, Barbara
name: Escudero, Marcial
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Poales
Cyperaceae
Carex
Carex maritima

description: Carex maritima Gunnerus, Fl. Norveg. 2: 131. 1776.
Lectotype (designated by JØrgensen 2012: 1090): Oeder, Fl. Dan. 3(8): t. 432. 1769. Epitype (designated by Bakken et al. 2011: 122): NORWAY. Finnmark, MåsØy, MaasØe, 27 Jun 1767, J. E. Gunnerus s.n. (TRH V-44006 photo!).
Iconography: Barros (1969: 17, sub C. incurva Lightf.); Wheeler (2009: 330).
Material studied. PERU. Arequipa: Laguna Las Salinas, 16 O 20.95 ’ S, 71 O 8.67 ’ W, 4315 m, 3 Nov 1998, H. Beltrán et al. 3173 (USM-200014).
Notes: Carex maritima is a bipolar species present at high latitudes of both the Northern and Southern Hemispheres, whose remarkable disjunction seems to date back to the Pleistocene (Escudero et al. 2010, Villaverde et al. 2015).
Our records from Peru constitute the new northernmost occurrences of the species in the Southern Hemisphere.
description: Published as part of Jiménez-Mejías, Pedro, Alegría-Olivera, J. José, Beltrán, Hamilton W., Cano, Asunción, Granda-Paucar, Arturo, Maldonado Fonkén, Mónica S., Riva-Regalado, Sebastián, Ruthsatz, Barbara & Escudero, Marcial, 2020, Chorological and nomenclatural notes on Peruvian Carex (Cyperaceae), pp. 63-69 in Caldasia 42 (1) on page 66, DOI: 10.15446/caldasia.v42n1.76771, http://zenodo.org/record/15265307