Miracle-dz/UniFAR-FTUs huggingface dataset:
A TEST OF THE MILLISECOND MAGNETAR CENTRAL ENGINE MODEL OF GAMMA-RAY BURSTS WITH SWIFT DATA

A rapidly spinning, strongly magnetized neutron star (magnetar) has been proposed as one possible candidate of the central engine of gamma-ray bursts (GRBs). We systematically analyze the Swift/XRT light curves of long GRBs detected before 2013 August, and characterize them into four categories based on how likely they may harbor a magnetar central engine: Gold, Silver, Aluminum, and Non-magnetar. We also independently analyze the data of short GRBs with a putative magnetar central engine. We then perform a statistical study of various properties of the magnetar samples and the non-magnetar sample, and investigate whether the data are consistent with the hypothesis that there exist two types of central engines. By deriving the physical parameters of the putative magnetars, we find that the observations of the Gold and Silver samples are generally consistent with the predictions of the magnetar model. For a reasonable beaming factor for long GRBs, the derived magnetar surface magnetic field Bp and initial spin period P0 fall into the reasonable range. Magnetar winds in short GRBs, on the other hand, are consistent with being isotropic. No GRB in the magnetar sample has a beam-corrected total energy exceeding the maximum energy budget defined by the initial spin energy of the magnetar, while some non-magnetar GRBs do violate such a limit. With beaming correction, on average the non-magnetar sample is more energetic and luminous than the magnetar samples. Our analysis hints that millisecond magnetars are likely operating in a good fraction, but probably not all, GRBs.
UPPER TRIASSIC INSECTS FROM THE MOLTENO "FORMATION", SOUTH AFRICA.

Insects are recorded from eight plant fossil localities in the Molteno "Formation", but only heavily sclerotized species (Blattodea and Coleoptera) have been obtained from six of them. A small mecopteron was found at another locality, and only at Birds River, near Dordrecht, has a more diverse fauna, with representatives of the Orthoptera, ? Mantodea, Blattodea, Homoptera and Megaloptera, been obtained. The known fauna is closely comparable with the Triassic faunas of Australia. Thirteen species, nine of which are described as new, are recorded from the Molteno. Six of the new species, and one described species, are referred to Hagla, Mesorthopteron, Triassoblatta, Dysmorphoptiloides and Ademosyne, genera represented in or previously restricted to the Australian Triassic faunas. The new monotypic genera, Prosbolomorpha (type species clara: Homoptera) and AJristella (type species delicatula: Mecoptera), are similar to genera recorded from the Triassic of Australia. Euchauliodes distinctus, gen. et sp. nov., is the earliest known Corydaloidean wing (Megaloptera); it is referred to a new family. 19
Detection of very-high-energy gamma rays from the most distant and gravitationally lensed blazar QSO B0218+357 using the MAGIC telescope system

QSO B0218+357 is a blazar located at a cosmological redshift of z=0.944. It is gravitationally lensed by a spiral galaxy at a redshift of z=0.68. The blazar and its lens are well studied in the radio through X-ray bands, and several blazar outbursts were detected by Fermi-LAT at energies above 100 MeV. Strong gravitational lensing was invoked to explain the two components appar- ent in the radio and GeV light curves, separated by 10-12 days. In July 2014 another outburst was observed by Fermi-LAT, triggering follow-up observations with the MAGIC telescopes at energies above 100 GeV. The observations were scheduled at the expected time of arrival of the component delayed by the strong gravitational field of the lens, resulting in a firm detection of QSO B0218+357. Using the combined Fermi-LAT and MAGIC data sets, we report on variability of this unique blazar, the most distant among all currently known very high energy sources.
Modelling Spiral Waves Xenopus Laevis Oocyte

An investigation was made into the spiral waves solutions for the Atri et al model, a partial differential equation model for CaH dynamics in the Xenopus laevis oocyte. Spiral wave solutions, both stable and unstable, were found to exist in the oscillatory regime for this model. The spiral wave solutions were found to have a period that decreased as the initial I P3 bolus increased. Increasing the initial I P3 bolus also lead to destabilisation of the spiral waves solutions. After the break up of spiral wave solutions complex spatio-temporal patterns occurred. In some cases spirals reformed after breaking up.
USF 2 inhibits C / EBP-mediated transcriptional regulation of the RII β subunit of cAMP-dependent protein kinase

Background: Cyclic AMP-dependent protein kinase (PKA) plays a central role in regulation of energy metabolism. Upon stimulation of testicular Sertoli cells by follicle stimulating hormone (FSH), glycolysis is activated to increase the production of nutrients for the germ cells, and a new regulatory subunit of cAMP-dependent protein kinase, RIIβ, is induced. We have previously shown that production of the transcription factor C/EBPβ is rapidly increased by FSH and cAMP in primary Sertoli cell cultures, and that C/EBPβ induces the RIIβ promoter. Results: In this work we show that USF1, USF2 and truncated USF isoforms bind to a conserved E-box in the RIIβ gene. Interestingly, overexpression of USF2, but not USF1, led to inhibition of both cAMPand C/EBPβ-mediated induction of RIIβ. Furthermore, Western blots show that a novel USF1 isoform is induced by cAMP in Sertoli cells. Conclusions: These results indicate that the expression of various USF isoforms may be regulated by cAMP, and that the interplay between USF and C/EBPβ is important for cAMP-mediated regulation of RIIβ expression. The counteracting effects of USF2 and C/EBPβ observed on the RIIβ promoter is in accordance with the hypothesis that C/EBP and USF play opposite roles in regulation of glucose metabolism. Background Follicle stimulating hormone (FSH) regulates spermatogenesis through the somatic Sertoli cells of the testis [1]. Sertoli cells act as "nursing" cells and supplies germ cells with energy and controls the biochemical environment in which they develop [2]. Among the FSH-regulated functions are increased glucose uptake and oxidation. In response to glucose, transcription of several glycolytic and lipogenic genes are activated through the glucose/carbohydrate/insulin response element (GIRE, ChoRE or IRE) [3,4]. Upstream stimulatory factors (USF) 1 and 2 are characterized by a basic/helix loop helix/leucine zipper domain responsible for dimerization and DNA binding, and are major components of the GIRE complex [5–8]. The main USF isoforms USF1 (43 kDa) and USF2 (44 kDa) are ubiquitously expressed and encoded by separate genes [9–11]. In addition, more isoforms of USF2 are produced due to alternative splicing and utilization of different translation start sites [12,13]. USF factors exist as homo and heterodimers, and the heterodimer of USF1/ USF2a seems to dominate, although there are cell-type Published: 21 June 2002 BMC Molecular Biology 2002, 3:10 Received: 5 April 2002 Accepted: 21 June 2002 This article is available from: http://www.biomedcentral. com/1471-2199/3/10 © 2002 Dahle et al; licensee BioMed Central Ltd. Verbatim copying and redistribution of this article are permitted in any medium for any purpose, provided this notice is preserved along with the article's original URL.
Cloning , sequencing and disruption of a bromoperoxidase-catalase gene in Streptomyces venezuelae : evidence that it is not required for chlorination in ch loramp hen icol biosynt hesis

3 lnstitut fur Biochemie, Technische Universitat Dresden, MommsenstraBe 4, D-01062 Dresden, Germany Genomic DNA libraries of Streptomyces venezuelae lSP5230 and of a mutant blocked at the chlorination step of chloramphenicol biosynthesis were probed by hybridization with a synthetic oligonucleotide corresponding to the Nterminal amino acid sequence of a bromoperoxidase-catalase purified from the wild-type strain. Hybridizing fragments obtained from the two strains were cloned and sequenced. Analysis of the nucleotide sequences demonstrated that the fragments contained the same 1449 bp open reading frame with no differences in nucleotide sequence. The deduced polypeptide encoded 483 amino acids with a calculated M, of 54200; the N-terminal sequence was identical to that of the bromoperoxidase-catalase purified from wild-type S. venezuelae. Comparison of the amino acid sequence predicted for the cloned bromoperoxidase-catalase gene ( k a ) with database protein sequences showed a significant similarity to a group of prokaryotic and eukaryotic catalases, but none to other peroxidases or haloperoxidases. Replacement of the bca gene in the wild-type strain of S. venezuelae with a copy disrupted by insertion of a DNA fragment encoding apramycin resistance did not prevent chloramphenicol production. The results suggest that the role of the enzyme in S. venezuelae is related to i ts activity as a catalase rather than as a halogenating agent.
Effect of Si/Al Ratio on SSZ-13 Crystallization and Its Methanol-To-Olefins Catalytic Properties

SSZ-13 materials with different Si/Al ratio were prepared by varying the composition of aluminosilicate precursor solutions upon hydrothermal treatment at 150 °C. The Si/Al ratio of the initial system was systematically changed from 12.5 to infinity in order to study the limits of Al composition in precursor solutions for constructing CHA structure. The intermediates and final products were investigated by complementary techniques such as XRD, HRTEM, FESEM, and chemical analysis. NH3-TPD was used to study the Brønsted acidity of SSZ-13 samples with different Si/Al ratios. The effect of the Si/Al ratio on the precursor species, ultimate crystal size, morphology and yield was investigated. The results revealed that Al species determine the nucleation rate and the number of nuclei, which is tied to the morphology and yield of SSZ-13. The size of SSZ-13 increased and the yield decreased as the Si/Al ratio was improved. Varying Si/Al ratio of the initial system is a facile, commercially viable method of tailoring SSZ-13 crystal size and morphology. Furthermore, SSZ-13 materials with different Si/Al ratio were tested as catalysts for the methanol to olefins (MTO) reaction at 350 °C. SSZ-13 with the Si/Al ratio of 35 shows the best MTO catalytic performance. Keywords—Crystallization, MTO, Si/Al ratio, SSZ-13.
Yhtiöittäminen – valtion rakennetun kulttuuriperinnön haaksirikko?

All material supplied via JYX is protected by copyright and other intellectual property rights, and duplication or sale of all or part of any of the repository collections is not permitted, except that material may be duplicated by you for your research use or educational purposes in electronic or print form. You must obtain permission for any other use. Electronic or print copies may not be offered, whether for sale or otherwise to anyone who is not an authorised user. Yhtiöittäminen – valtion rakennetun kulttuuriperinnön haaksirikko? Vilkuna, Janne; Vuorinen, Pirjo
Fly Ash-Based Geopolymer Concrete

Abstract In recent years, attempts to increase the utilisation of fly ash to partially replace the use of Portland cement in concrete are gathering momentum. Geopolymer concrete is a ‘new’ material that does not need the presence of Portland cement as a binder. Instead, activating the source materials such as fly ash that are rich in Silicon (Si) and Aluminium (Al) using high alkaline liquids produces the binder required to manufacture the concrete. Hence, concrete with no cement. This paper presents information on fly ash-based geopolymer concrete. The paper covers the material and the mixture proportions, the manufacturing process, and the influence of various parameters on the properties of fresh and hardened concrete.
Quick and Accurate Computation of Voltage Stability Margin

It is well known that the behavior of PV curves is similar to a quadratic function. This is used in some papers to approximate PV curves and calculate the maximum-loading point by minimum number of power flow runs. This paper also based on quadratic approximation of the PV curves is aimed at completing previous works so that the computational efforts are reduced and the accuracy is maintained. To do this, an iterative method based on a quadratic function with two constant coefficients, instead of the three ones, is used. This simplifies the calculation of the quadratic function. In each iteration, to prevent the calculations from diverging, the equations are solved on the assumption that voltage magnitude at a selected load bus is known and the loading factor is unknown instead. The voltage magnitude except in the first iteration is selected equal to the one at the nose point of the latest approximated PV curve. A method is presented to put the mentioned voltage in the first iteration as close as possible to the collapse point voltage. This reduces the number of iterations needed to determine the maximum-loading point. This method is tested on four IEEE test systems.
Testing the Imports-As-Market-Discipline Hypothesis Testing the Imports-As-Market-Discipline Hypothesis

It has long been believed that intensified international competition forces domestic firms to behave more competitively. Using Turkish data spanning the course of a dramatic trade liberalization, this notion is tested. Address. Prof. James Levinsohn, Hoover Institution, Stanford, CA 94305-6010; Bitnet: LEVINSOHNOHOOVER The theory of international trade policy is becoming quite well developed. Myriad policies, real and imagined, have been investigated in models of perfect competition and, more recently, in models of imperfect competition. The more recent literature is quite nicely surveyed (and extended) in Elhanan Helpman and Paul Krugman's Trade Policy and Market Structure (1989). Econometric studies of trade policy under imperfect competition, in contrast to the theoretical investigations, are scarce. It is perhaps telling that Helpman and Krugman's survey of empirical work in the field does not mention a single econometric study. Recent empirical work in trade policy and market structure consists primarily of calibrated simulation models. Examples include Avinash Dixit's (1988) study of the United States automobile industry, Paul Krugman and Richard Baldwin's (1988) study of the semiconductor market, Alasdair Smith and Anthony Venables' (1988,1989) studies of several industries in the United Kingdom, and Dani Rodrik's (1988) study of various Turkish industries. Although none of these studies wsk exactly the same question, they share some common themes. All of these are studies of trade policy under imperfect competition employing industry level simulation models. They are calibrated, not estimated. All these studies examine normative as well as positive consequences of trade policy. Also, all these studies consider the role government policy might play in altering the game firms play and are hence studies of strategic trade policies. Finally, they are all prospective. That is, they evaluate policies that could be, but are not actually, implemented. I am grateful to Steve Berry, Jim Brander, Tim Bresnahan, Avinash Dixit, Rob Feenstra, Eban Goodstein, Gene Grossman, Jeff Mackie-Mason, Ariel Pakes, Dani Rodrik, Bob Staiger, Jim Tybout, and Frank Wolak for helpful comments and/or discussions. Also many thanks to to Lili Lui and Janet Netz for research assistance. None of the above bear any blame. I am also grateful to the World Bank which funded this paper under RP0674-46: Industrial Competition, Productive Efficiency, and their Relation to Trade Regimes.
Marine reservoir corrections for Moreton Bay, Australia

We present the first direct assessment of marine reservoir effects in the Moreton Bay region using radiocarbon dating of known-age, pre-AD 1950, shell samples from the east coast of Stradbroke Island and archaeological shell/charcoal pairs from Peel Island in Moreton Bay. The resulting ΔR value of 9±19 14C years for the open ocean conforms to regional values established for northeast Australia of 12±10 14C years. Negative ΔR values of -65±61 14C years and -216±94 14C years for southern Moreton Bay highlight the potential for larger offsets over the last ~900 years. These may be linked to changing terrestrial inputs and local circulation patterns
Evaluations of Global Wind Prediction at Fleet Numerical Meteorology and Oceanography Center: from the Perspective of a Wave Modeler

Abstract : This study describes the validation of winds fields used in a companion study ("Evaluation of global wave prediction at Fleet Numerical Meteorology and Oceanography Center," submitted for review). During this validation, it is found that conventional methods of estimating the distribution of bias across wind speeds can produce widely misleading conclusions. This is demonstrated, and a simple solution (histogram comparisons without geographic interpolation) is presented.
Body image and body schema : interdisciplinary perspectives on the body

1. Introduction (by De Preester, Helena) 2. Part 1: Embodiment, Speech and Mirror Neurons 3. Body schema, body image, and mirror neurons (by Stamenov, Maxim I.) 4. Two phenomenological logics and the mirror neurons theory (by De Preester, Helena) 5. Some comments on the emotional and motor dynamics of language embodiment: A neurophysiological understanding of the Freudian Unconscious (by Bazan, Ariane) 6. Part 2: Dissociations of body image and body schema and ways of embodiment 7. Vectorial versus configural encoding of body space: A neural basis for a distinction between Body Schema and Body Image (by Paillard, Jacques) 8. Implicit body representations in action (by Rossetti, Yves) 9. Body self and its narrative representation in schizophrenia: Does the body schema concept help establish a core deficit? (by Mishara, Aaron L.) 10. Body structure in psychotic and autistic children (by Sauvagnat, Francois) 11. Radical embodiment: Experimenting risks (by Depraz, Nathalie) 12. Part 3: Dynamic interpretations of body image and body schema 13. A functional neurodynamics for the constitution of the own body (by Petit, Jean-Luc) 14. What are we naming? (by Sheets-Johnstone, Maxine) 15. Dynamic models of body schematic processes (by Gallagher, Shaun) 16. Part 4: Clinical approaches and the mirror stage 17. Phenomenology and psychoanalysis on the mirror stage: Different metaphysical backgrounds on body image and body schema (by Van Bunder, David) 18. Looking at the mirror image: The stare and the glance (by Le Gaufey, Guy) 19. Anorectics and the mirror (by Knockaert, Veroniek) 20. Francoise Dolto's clinical conception of the unconscious body image and the body schema (by Geerardyn, Filip) 21. On the relation of the body image to sensation and its absence (by Cole, Jonathan) 22. Index
Future of Food : Perception of Consuming Virtual Food

Virtual technology, by creating new realities is re-ontologizing our world. Virtual tourism is one of the areas that gets the particular attention of software developers and consumers. The virtual tourism experiences involve all aspects of actual tourism, such as leisure and recreational activities, food, and sex. Since food is one of the most important component of daily life and the tourism experience, studies on virtual food perception and experiences are very significant. Many researches have been conducted on virtual food experiences in varies fields, such as psychology, food and computer sciences. However, virtual food relatively neglected by tourism scholars. This paper attempts to explore the perception of virtual food consumption by applying qualitative content analysis approach under social constructivism paradigm. The sociological perspective of acceptance of the virtual food consumption analysed in this paper. Data collected from comments on a shared video on virtual food on Facebook. The data set analysed using the thematic method. The key findings of this study shows that the idea virtual food technology quite accepted by most of people. They are looking forward to experience it and at the same time they suggested to implement it in sustainable development. These suggestions are including of future use of virtual food, improving health conditions, solving hunger issue and obesity, and spending less on food products. Although some did not agree to invest on this kind of projects. Background of the Study
Capital Income Taxation and Specialization Patterns: Investment Tax vs. Saving Tax

Unless free international lending/borrowing is allowed, domestic saving equals domestic investment and hence saving and investment taxes have the identical effect, as is the case in a closed-economy context. However, if it is allowed, households can accumulate foreign assets besides domestic capital and hence saving and investment are separated, causing the two taxes to have different effects. Using a two-sector growth model, we show that the two taxes generate completely different effects on industrial structure. The investment tax always shrinks the capital-intensive sector whereas the saving tax may well expand it.
Let-7, miR-125, miR-205, and miR-296 are prospective therapeutic agents in breast cancer molecular medicine

Increasing evidences in recent years demonstrate that several biological processes and disease pathogenesis are regulated by micro RNAs (miRs) and restoration of normal miR activity can be new way of treating cancers. Several genetic alterations and deregulation of miRs have been reported in breast cancer. Similarly, side effects of conventional chemotherapeutic drugs are well known. In this research, using a broad bioinformatics approach we have identified critical disease pathways and drug targets in female breast cancer. Replacement therapy with let-7 is already under clinical trails for lung cancer. Here we have shown that restoration of let-7 along with miR-125 or miR-205 or miR-296 can potentially inhibit all critical disease pathways involved in breast cancer irrespective of patient specific molecular profile. Results also suggest that these miRs might be the future therapeutic agents in breast cancer molecular medicine with out side effects.