cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Resonance broadening theory of Farley-Buneman turbulence in the auroral E-region
Creators: name: Hamza, Abdelaziz M.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The conventional theory of resonance broadening for a two-species plasma in a magnetic field is revised, and applied to an ionospheric turbulence case. The assumptions made in the conventional theory of resonance broadening have, in the past, led to replacing the frequency $ω$ by $ω+ik_{\perp}^{2}D^{*}$ in the resonant part of the linear dielectric function to obtain the nonlinear dielectric function. Where $D^{*}$ is an anomalous diffusion coefficient due solely to wave scattering of the particle orbits. We show that in general these assumptions are not valid, and consequently the straightforward substitution of frequencies is not legitimate. We remedy these problems and derive expressions for the time-dependent components of the diffusion tensor. The improved resonance broadening theory is developed in the context of an ionospheric problem, namely that of the Farley-Buneman turbulence in the auroral E-region. A kinetic description of the electrons is used. A general expression for the nonlinear dielectric function is derived in the special case where no parallel electric field is present, and the differences with the conventional dispersion relation are discussed.
Asymmetric Orbifold Models of Non-supersymmetric Heterotic Strings
Creators: name: Sasada, Toshihiro
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate asymmetric orbifold models constructed from non-supersymmetric heterotic strings. We systematically classify the asymmetric orbifold models with standard embeddings and present a list of asymmetric orbifolds which are geometrically interpreted as toroidal compactifications of non-supersymmetric heterotic strings. By studying non-standard embedding models, we also construct examples of the {\em supersymmetric} asymmetric orbifold models based on non-supersymmetric heterotic strings.
description: 13 pages, LaTeX
Biochemical and functional characterisation of the Linear Ubiquitin Chain Assembly Complex (LUBAC) as a component of the TNF-Receptor 1 signalling complex
Creators: name: Emmerich, Christoph H.
Publisher: name: Imperial College London
Year: 2010

description: Tumour necrosis factor (TNF) plays a critical role in inflammatory processes and is involved in the regulation of immune responses. Depending on the cellular context, TNF initiates a complex cascade of signalling events that can lead to induction of proinflammatory cytokines, cell proliferation, differentiation or cell death. Most of the pleiotropic effects of TNF are mediated by the death-domain (DD) containing TNF-R1. Ligand-induced trimerisation of TNF-R1 leads to the formation of an intracellular multiprotein complex, the TNF-R1 signalling complex (TNF-RSC). To be able to comprehend the complex network of signalling pathways emanating from TNF-R1, the TNF-RSC and its composition need to be understood at the molecular level. Using a modified tandem affinity purification approach, HOIL-1 and HOIP were identified as two novel, functional components of the native TNF-RSC. Together they were shown to form a linear ubiquitin chain assembly complex (LUBAC), catalysing the formation of linear head-to-tail ubiquitin chains. LUBAC mediates ubiquitination of NEMO with linear ubiquitin chains, required for efficient NF-kB activation following TNF stimulation. In this thesis, it could be demonstrated that the stimulation-dependent recruitment of LUBAC to the TNF-RSC is impaired in cIAP1/2-deficient mouse embryonic fibroblast (MEF) cell lines. Furthermore, it was shown that the E3 ligase activity of cIAPs, but not of TRAF2, is required for HOIL-1 recruitment to the TNF-RSC. This result, together with the ability of HOIL-1 and HOIP to bind polyubiquitin chains of various linkage types, suggests that LUBAC is recruited to the TNF-RSC via cIAP-generated ubiquitin chains. It was also found that LUBAC enhances NEMO interaction with the TNF-RSC, that it stabilises this protein complex and that LUBAC is required for efficient TNF-induced activation of NF-kB and JNK, resulting in apoptosis inhibition. Finally, it is shown in this thesis that the catalytic activity of LUBAC is required for stabilisation of the TNF-RSC, thereby adding a novel form of ubiquitin linkage to TNF signalling. The identification of HOIL-1 and HOIP as functional constituents of the TNF-RSC provides evidence that LUBAC is an important regulator at the apex of TNF-induced signalling cascades and increases the combinatorial complexity of ubiquitin modifications within this receptor complex.
Regular Jacobi Structures and Generalized Contact Bundles
Creators: name: Schnitzer, Jonas
Publisher: name: arXiv
Year: 2018
Subjects: subject: Differential Geometry (math.DG)
subject: Complex Variables (math.CV)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 53D18, 53D10, 53D15, 53D17

description: A Jacobi structure $J$ on a line bundle $L\to M$ is weakly regular if the sharp map $J^\sharp : J^1 L \to DL$ has constant rank. A generalized contact bundle with regular Jacobi structure possess a transverse complex structure. Paralleling the work of Bailey in generalized complex geometry, we find condition on a pair consisting of a regular Jacobi structure and an transverse complex structure to come from a generalized contact structure. In this way we are able to construct interesting examples of generalized contact bundles. As applications: 1) we prove that every 5-dimensional nilmanifold is equipped with an invariant generalized contact structure, 2) we show that, unlike the generalized complex case, all contact bundles over a complex manifold possess a compatible generalized contact structure. Finally we provide a counterexample presenting a locally conformal symplectic bundle over a generalized contact manifold of complex type that do not possess a compatible generalized contact structure.
description: 24 pages, comments welcome!
Thermodynamics and Perturbative Analysis of Some Newly Developed $\mathcal{F}(R,L_m, T)$ Theories Under the Scenario of Conserved Energy-momentum Tensor
Creators: name: Zubair, M.
name: Waheed, Saira
name: Muneer, Quratulien
name: Ahmad, M.
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The present work is devoted to explore some interesting cosmological features of a newly proposed theory of gravity namely $\mathcal{F}(R,L_m,T)$ theory, where $R$ and $T$ represent the Ricci scalar and trace of energy momentum-tensor, respectively. Firstly, a non-equilibrium thermodynamical description is considered on the apparent horizon of the Friedmann's cosmos. The Friedmann equations are demonstrated to be equivalent to the first law of thermodynamics, i.e., ${T_{Ah}d\varepsilon_{h}^\prime+T_{Ah}d_{i}\varepsilon_{h}^\prime=-d\hat{E}+\hat{W}dV}$, where ${d_{i}\varepsilon_{h}^\prime}$ refers to entropy production term. We also formulate the constraint for validity of generalized second law of thermodynamics and check it for some simple well-known forms of generic function $\mathcal{F}(R,L_m,T)$. Next, we develop the energy bounds for this framework and constraint the free variables by finding the validity regions for NEC and WEC. Further, we reconstruct some interesting cosmological solutions namely power law, $Λ$CDM and de Sitter models in this theory. The reconstructed solutions are then examined by checking the validity of GSLT and energy bounds. Lastly, we analyze the stability of all reconstructed solutions by introducing suitable perturbations in the field equations. It is concluded that obtained solutions are stable and cosmologically viable.
description: 24 pages, 13 figures
The Growth of Gas Demand and Increasing Connectivity of Gas Market
Creators: name: Aviandito, Mohammad
Publisher: name: figshare
Year: 2018
Subjects: subject: 91305 Energy Generation, Conversion and Storage Engineering
subject: FOS: Mechanical engineering

description: Gas is the only fossil fuel with growing demand in recent years, driven by increasing usage in electricity generation sector. However, competition with coal in electricity generation sector could slow down the growth rate. The gas trade has been characterized as illiquid market based on oil-linked long-term contracts, but the changes in gas market between 2009-2012 has increased the urge to trade in a more liquid market. Several trends in the global gas trade has become the driving forces towards more liquid and connected gas market. These includes the increasing number of LNG importers and regasification terminals, the decreasing benefit of long-term contracts, and the emergence of regional hubs. Although a ‘global gas market’ is still far away due to gas’ physical limitation, the ever-increasing competition and mobility will improve the market liquidity and connectivity between main trade regions.
A Class III Cultural Resources Reconnaissance of Two Study Plots for the Land Surface Cleanup Project on the Nevada Test Site, Nye County, Nevada
Creators: name: Beck, Colleen M.
Publisher: name: Desert Research Institute
Year: 1991
Subjects: Clark (County)
Quartet Dome 7.5'
United States of America (Country)
Las Vegas, Nevada
Nevada (State / Territory)
Kawich Peak QUAD 7.5'
Nye (County)
Nellis Air Force Base, Nevada
USGS Plutonium Valley QUAD 7.5'
26NY7793
Reconnaissance / Survey

description: The Department of Energy (DOE) requested that the Desert Research Institute (DRI) conduct a Class III Cultural Resources Reconnaissance of two proposed study plots for the Land Surface Cleanup Project. Both study plots are accessible from existing roads. The plots measure 180 x 200 m with a 10 m buffer around the periphery of the study area. The proposed project will involve removal of the topsoil.
RNNIDS: Enhancing Network Intrusion Detection Systems through Deep Learning
Creators: name: Sohi, Soroush M.
name: Seifert, Jean-Pierre
name: Ganji, Fatemeh
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Security of information passing through the Internet is threatened by today's most advanced malware ranging from orchestrated botnets to simpler polymorphic worms. These threats, as examples of zero-day attacks, are able to change their behavior several times in the early phases of their existence to bypass the network intrusion detection systems (NIDS). In fact, even well-designed, and frequently-updated signature-based NIDS cannot detect the zero-day treats due to the lack of an adequate signature database, adaptive to intelligent attacks on the Internet. More importantly, having an NIDS, it should be tested on malicious traffic dataset that not only represents known attacks, but also can to some extent reflect the characteristics of unknown, zero-day attacks. Generating such traffic is identified in the literature as one of the main obstacles for evaluating the effectiveness of NIDS. To address these issues, we introduce RNNIDS that applies Recurrent Neural Networks (RNNs) to find complex patterns in attacks and generate similar ones. In this regard, for the first time, we demonstrate that RNNs are helpful to generate new, unseen mutants of attacks as well as synthetic signatures from the most advanced malware to improve the intrusion detection rate. Besides, to further enhance the design of an NIDS, RNNs can be employed to generate malicious datasets containing, e.g., unseen mutants of a malware. To evaluate the feasibility of our approaches, we conduct extensive experiments by incorporating publicly available datasets, where we show a considerable improvement in the detection rate of an off-the-shelf NIDS (up to 16.67%).
Characterisation of the GAAP (Golgi anti-apoptotic protein) gene family in Arabidopsis thaliana
Creators: name: Sierla, Maija Elina
Publisher: name: Imperial College London
Year: 2011

description: Programmed cell death (PCD) plays an essential role in eukaryotes during growth and development and in response to stress signals. GAAPs (Golgi anti-apoptotic protein) are a novel, evolutionarily conserved group of anti-apoptotic proteins. Human and viral GAAPs have been shown to inhibit apoptosis and modulate intracellular calcium fluxes. There is an apparent expansion of the GAAP gene family in plants, with five paralogous genes present in the Arabidopsis thaliana genome (AtGAAP1-5). AtGAAPs share the UPF0005 signature motif with animal and plant proteins that have been shown to function as inhibitors of cell death, including Bax inhibitor-1 and Lifeguard. AtGAAP genes show distinct expression patterns with AtGAAP4 and AtGAAP2 showing the highest overall transcript abundance based on publicly available microarray data and RT-PCR analysis. AtGAAP gene expression analysis using promoter-GUS fusions revealed overlapping expression patterns for AtGAAP1, AtGAAP2 and AtGAAP4 in floral organs, with AtGAAP2 and AtGAAP4 also highly expressed in leaf tissue. AtGAAP5 however showed floral-specific expression that was mostly distinct from the expression pattern of AtGAAP1, AtGAAP2 and AtGAAP4 in the flowers. AtGAAP3 expression was undetectable by GUS staining. Intracellular localisation of fluorescent protein-tagged AtGAAPs was studied using stable or transient expression in Arabidopsis and Nicotiana benthamiana, respectively. All AtGAAPs were confirmed to localise to the Golgi at low expression levels and AtGAAP1 and AtGAAP2 additionally localised to the tonoplast at higher expression levels. Analysis of single knock-out mutants of AtGAAPs revealed no obvious developmental or PCD-related phenotypes. Measurement of cytosolic Ca2+ rises following H2O2 or mannitol treatment in atgaap null mutants, transgenically expressing proaequorin, indicated a potential role for AtGAAPs in Ca2+ signalling, however, these data are preliminary. Several double and triple atgaap mutants have been generated, all of which display a wild-type growth habit suggesting either redundancy within the AtGAAP gene family or the existence of a subtle phenotype that is not apparent under the conditions used. Phenotypes have however been uncovered in plants overexpressing AtGAAP-YFP fusion proteins. AtGAAP1 overexpressors display a slight dwarf phenotype whereas AtGAAP2 overexpressors show severely twisted branches. AtGAAP5 overexpressors display a severe dwarf phenotype, enhanced senescence and development of spontaneous lesions in both rosette and cauline leaves. Moderate to high expression of AtGAAP5 presumably leads to lethality, as no transgenic plants that express AtGAAP5-YFP at these levels have been recovered.
Chemical Current-Conveyor: a new approach in biochemical computation
Creators: name: Pookaiyaudom, Panavy
Publisher: name: Imperial College London
Year: 2011

description: Biochemical sensors that are low cost, small in size and compatible with integrated circuit technology play an essential part in the drive towards personalised healthcare and the research described in this thesis is concerned with this area of medical instrumentation. A new biochemical measurement system able to sense key properties of biochemical fluids is presented. This new integrated circuit biochemical sensor, called the Chemical Current-Conveyor, uses the ion sensitive field effect transistor as the input sensor combined with the current-conveyor, an analog building-block, to produce a range of measurement systems. The concept of the Chemical Current-Conveyor is presented together with the design and subsequent fabrication of a demonstrator integrated circuit built on conventional 0.35μm CMOS silicon technology. The silicon area of the Chemical Current-Conveyor is (92μm x 172μm) for the N-channel version and (99μm x 165μm) for the P-channel version. Power consumption for the N-channel version is 30μW and 43μW for the P-channel version with a full load of 1MΩ. The maximum sensitivity achieved for pH measurement was 46mV per pH. The potential of the Chemical Current Conveyor as a versatile biochemical integrated circuit, able to produce output information in an appropriate form for direct clinical use has been confirmed by applications including measurement of (i) pH, (ii) buffer index ( ), (iii) urea, (iv) creatinine and (v) urea:creatinine ratio. In all five cases the device has been demonstrated successfully, confirming the validity of the original aim of this research project, namely to produce a versatile and flexible analog circuit for many biochemical measurement applications. Finally, the thesis closes with discussion of another potential application area for the Chemical Current Conveyor and the main contributions can be summarised by the design and development of the first: ISFET based current-conveyor biochemical sensor, called 'Chemical Current Conveyor, CCCII+' has been designed and developed. It is a general purpose biochemical analog building-block for several biochemical measurements. Real-time buffer capacity measurement system, based on the CCCII+, which exploits the imbedded analog computation capability of the CCCII+. Real-time enzyme based CCCII+ namely, Creatinine-CCCII+ and Urea-CCCII+ for real-time monitoring system of renal system. The system can provide outputs of 3 important parameters of the renal system, namely (i) urea concentration, (ii) creatinine concentration, and (ii) urea to creatinine ratio.
Entwürfe zu Lexikonartikeln
Creators: name: (:Unkn) Unknown
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1800
Subjects: subject: 090

description: Entwürfe für zahlreiche Lexikonartikel; u. a. zu jüdischen Persönlichkeiten
Mode-coupling and nonlinear Landau damping effects in auroral Farley-Buneman turbulence
Creators: name: Hamza, Abdelaziz M.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The fundamental problem of Farley-Buneman turbulence in the auroral $E$-region has been discussed and debated extensively in the past two decades. In the present paper we intend to clarify the different steps that the auroral $E$-region plasma has to undergo before reaching a steady state. The mode-coupling calculation, for Farley-Buneman turbulence, is developed in order to place it in perspective and to estimate its magnitude relative to the anomalous effects which arise through the nonlinear wave-particle interaction. This nonlinear effect, known as nonlinear ``Landau damping'' is due to the coupling of waves which produces other waves which in turn lose energy to the bulk of the particles by Landau damping. This leads to a decay of the wave energy and consequently a heating of the plasma. An equation governing the evolution of the field spectrum is derived and a physical interpration for each of its terms is provided.
Developing new tools for the expression of foreign proteins in tobacco chloroplasts
Creators: name: Niazi, Niaz Ahmad
Publisher: name: Imperial College London
Year: 2011

description: Chloroplast transformation technology is an exciting platform for the safe, inexpensive and large-scale production of recombinant proteins in plants, enabling them to be used as cellular factories. However more work is required to test this technology for the expression of membrane proteins, purification of recombinant proteins from the chloroplasts and high throughput cloning strategies. This work was undertaken with a view to expand the utility of chloroplast transformation technology. In the first part of the thesis, the potential of chloroplasts to express various membrane proteins was explored. The test proteins included a plastid terminal oxidase from Chlamydomonas reinhardtii (Cr-PTOX1) and a human G-protein coupled-receptor, adenosine receptor A (A2AR). Both proteins were successfully expressed in tobacco chloroplasts and in the case of Cr-PTOX1 in an active conformation. However, its transplastomic expression rendered the plants sensitive to high light. Interestingly protection was observed at the germination stage against salt stress in Cr-PTOX1 seedlings. The A2A receptor was also expressed; however it was not targeted to thylakoids. In the second part of the project, the expression in tobacco of two widely used affinity tags, glutathione S-transferase (GST) and His-tagged maltose-binding proteins (His6-MBP) was investigated as a mean of improving the purification of chloroplast expressed proteins. Their expression in transplastomic plant leaves reached approx. ≥7% and 37% of total soluble proteins, respectively. GST could be purified by one-step-affinity purification using a glutathione column. Much better recoveries were obtained for His6-MBP by using a twin affinity purification procedure. Interestingly, the high level expression of GST led to cytoplasmic male sterility. Similarly, the feasibility of adapting the Gateway® cloning system for chloroplast transformation was also tested. The results suggested that Gateway® cloning does not give a high expression of recombinant proteins in tobacco chloroplasts. Overall this work opens up the opportunities for the expression of foreign membrane proteins in chloroplasts and expands the tools available for purifying recombinant proteins from the chloroplasts.
A flexible polymer-based microfluidic platform to probe asymmetric organocatalytic chemical reactions
Creators: name: Valera Del Pino, Fernando Enrique
Publisher: name: Imperial College London
Year: 2011

description: Microfluidic technologies have been supported by the development of rapid-prototyping techniques that allow for the swift and inexpensive fabrication of customised devices. However, the limited chemical compatibility of microchips has hitherto limited microfluidic organic chemistry research. This thesis reports the development of a comprehensive rapid-prototyping microfluidic platform suitable for kinetic and mechanistic investigations of organic reactions. A lithographic method based on the frontal photopolymerisation (FPP) of thiol-ene resists was employed due to its remarkable solvent compatibility and 3D versatility. The FPP process was investigated and found to exhibit an interfacial instability in addition to planar frontal growth used in device fabrication. This behaviour suggested applications for one-step 3D micropatterning. Systematic studies elucidated the nature of these patterns, which were found to derive from a gel-layer swelling process. The phenomenon was effectively employed to generate 3D structures via a "lock-in" mechanism of interfacial deformation. A microreactor fabrication and operation protocol was then developed for organic reaction studies, assisted by fluid mechanics calculations of residence time distributions and reaction kinetics. The work then focused exclusively on the chemistry of three selected asymmetric organocatalytic reaction systems. A full kinetic study on the non-linear effects in the alkylation of benzaldehyde was carried out in microflow and results were validated against batch studies. Kinetic investigations of an aldol reaction system then helped debunk published claims about enhanced yields and selectivities inside microreactors. Finally, the microfluidic platform was used to investigate the Soai reaction in both single and segmented two-phase flows. This is a unique system exhibiting spontaneous chiral symmetry breaking. The stochastic behaviour of the uncatalysed reaction nonwithstanding, the methodology provided clear profiles of the temporal evolution of enantiomeric amplification. All the results obtained with the microfluidic platform successfully demonstrated the capabilities of the methodology for organic chemistry laboratory studies.
Encodings of Turing machines in Linear Logic
Creators: name: Clift, James
name: Murfet, Daniel
Publisher: name: arXiv
Year: 2018
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics

description: We give several different encodings of the step function of a Turing machine in intuitionistic linear logic, and calculate the denotations of these encodings in the Sweedler semantics.
description: 50 pages
Cytidine Deaminases are Regulators of Estrogen Receptor Activity in Breast Cancer Cells
Creators: name: Periyasamy, Manikandan
Publisher: name: Imperial College London
Year: 2011

description: Breast cancer is the most common cancer worldwide, with 1.38 million women diagnosed with the disease each year. Estrogens play a critical role in the development and progression of breast cancer, their action being mediated by the estrogen receptors (ER), ERα and ERß, which are the members of the nuclear receptor superfamily of transcription factors. This understanding has led to the development of endocrine therapies aimed at inhibiting ER action by competitive binding to the ER (anti-estrogens), or using inhibitors of estrogen biosynthesis (aromatase inhibitors). Determining the mechanisms by which ER regulate gene expression will aid our understanding of the role of ER in breast cancer progression, response and resistance to endocrine therapies. Upon binding estrogen, ER drives the expression of estrogen responsive genes through the orderly recruitment of co-regulators that act by remodelling and modifying chromatin, ultimately promoting RNA polymerase II recruitment and transcription initiation. Previous work from our laboratory has shown that the APOBEC3B cytosine deaminase acts as an ERα transcriptional coactivator in reporter gene assays. Here, I have developed these initial observations and demonstrate that APOBEC3B is important for the regulation of estrogen responsive genes and breast cancer cell growth. I show that APOBEC3B is recruited to the promoters of estrogen-responsive genes and interacts with ERα. Studies carried out to identify the molecular mechanisms by which APOBEC3B regulates the expression of estrogen-responsive genes included its potential role in DNA demethylation and identified a role for APOBEC3B in DNA strand break formation at the promoter of the estrogen regulated pS2 gene. Together, these studies identify APOBEC3B as an important new coregulator of ERα that is required for the regulation of gene expression by estrogen in breast cancer cells.
On the propagation speed of evanescent modes
Creators: name: Pablo, A.
name: Barbero, L.
name: F., Hugo E. Hernandez
name: Recami, Erasmo
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: The group-velocity of evanescent waves (in undersized waveguides, for instance) was theoretically predicted, and has been experimentally verified, to be Superluminal (v_g > c). By contrast, it is known that the precursor speed in vacuum cannot be larger than c. In this paper, by computer simulations based on Maxwell equations only, we show the existence of both phenomena. In other words, we verify the actual possibility of Superluminal group velocities, without violating the so-called (naive) Einstein causality. (Subject classes: General physics, Classical physics, Optics, Special Relativity; PACS nos.: 73.40Gk, 03.80+z, 03.65Bz; Keywords: evanescent waves; tunnelling photons; Hartman effect; group velocity; Superluminal waves; precursors; transient waves; front velocity; Maxwell equations; electromagnetic waves; computer simulations; Special Relativity; Extended Relativity).
description: plain LaTeX file (14 pages), plus 15 figures in .jpg
Wilson Loops in the Higgs Phase of Large N Field Theories on the Conifold
Creators: name: Caceres, Elena
name: Hernandez, Rafael
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the quark-antiquark interaction in the large N limit of the superconformal field theory on D-3branes at a Calabi-Yau conical singularity. We compute the Wilson loop in the AdS_5xT^{11} supergravity background for the SU(2N)x SU(2N) theory. We also calculate the Wilson loop for the Higgs phase where the gauge group is broken to SU(N)x SU(N)x SU_D(N). This corresponds to a two center configuration with some of the branes at the singularity and the rest of them at a smooth point. The calculation exhibits the expected Coulomb dependence for the interaction. The angular distribution of the BPS states is different than the one for a spherical horizon.
description: Latex2e file. 19 pages. Final version
A Review of Low Emission Technologies: Allam Cycle Power Generation and Chemical Absorption Post-Combustion Carbon Capture
Creators: name: Aviandito, Mohammad
Publisher: name: figshare
Year: 2018
Subjects: subject: 90608 Renewable Power and Energy Systems Engineering (excl. Solar Cells)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 90401 Carbon Capture Engineering (excl. Sequestration)
subject: FOS: Chemical engineering

description: Development in low emission technology will be at the forefront of transition towards a sustainable energy system, and financial support is required to achieve technological and commercial maturity. This article will review several low emission technologies, namely the gas-powered, supercritical CO2 Allam power cycle as an example of a low emission technology that is yet to achieve technological maturity, and chemical absorption post combustion carbon capture as an example of a mature and readily available technology that could act as a sustainable fix to current fossil-fueled electricity generation. Funding for these technologies to push them towards commercial maturity and widespread adoption could have an impact towards achieving carbon emission target in the future.
Nellis Air Force Range 1993 Wild Horse Gather Trapping Locations
Creators: name: Ferris, Dawna E.
Year: 1993
Subjects: Clark (County)
United States of America (Country)
Las Vegas, Nevada
Wild Horse Ranch QUAD 7.5'
Nevada (State / Territory)
Nye (County)
Nellis Air Force Base, Nevada
Reconnaissance / Survey

description: The BLM has proposed 5 locations within or immediately adjacent to the Nellis Air Force Range as potential trapping sites to be used during the September 1993 Wild horse and burro gathers.
"Gutachten in Bezug auf die jüdischen Cultus- und Unterrichts-Verhältnisse"
Creators: name: (:Unkn) Unknown
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1845
Subjects: subject: Pädagogik
subject: 090

description: Anmerkungen zu den Themen: Rechtliche Stellung des Synagogenverbandes in Posen; Anforderungen und Ausbildung jüdischer Religionslehrer; Konflikte in Kultus-Angelegenheiten; Jüdisches Schulwesen.
Statistical mechanics of an elastically pinned membrane: Equilibrium dynamics and power spectrum
Creators: name: Janeš, Josip Augustin
name: Schmidt, Daniel
name: Seifert, Udo
name: Smith, Ana-Sunčana
Publisher: name: arXiv
Year: 2018
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: In biological settings membranes typically interact locally with other membranes or the extracellular matrix in the exterior, as well as with internal cellular structures such as the cytoskeleton. Characterization of the dynamic properties of such interactions presents a difficult task. Significant progress has been achieved through simulations and experiments, yet analytical progress in modelling pinned membranes has been impeded by the complexity of governing equations. Here we circumvent these difficulties by calculating analytically the time-dependent Green's function of the operator governing the dynamics of an elastically pinned membrane in a hydrodynamic surrounding and subject to external forces. This enables us to calculate the equilibrium power spectral density for an overdamped membrane pinned by an elastic, permanently-attached spring subject to thermal excitations. By considering the effects of the finite experimental resolution on the measured spectra, we show that the elasticity of the pinning can be extracted from the experimentally measured spectrum. Membrane fluctuations can thus be used as a tool to probe mechanical properties of the underlying structures. Such a tool may be particularly relevant in the context of cell mechanics, where the elasticity of the membrane's attachment to the cytoskeleton could be measured.
A non-perturbative approach to the Coleman- Weinberg mechanism in massless scalar QED
Creators: name: Malbouisson, A. P. C.
name: Nogueira, F. S.
name: Svaiter, N. F.
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We rederive non-perturbatively the Coleman-Weinberg expression for the effective potential for massless scalar QED. Our result is not restricted to small values of the coupling constants. This shows that the Coleman- Weinberg result can be established beyond the range of validity of perturbation theory. Also, we derive it in a manifestly renormalization group invariant way. It is shown that with the derivation given no Landau ghost singularity arises. The finite temperature case is discussed. Pacs number: 11.10.Ef,11.10.Gh.
title: 03_0503
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
A Class III Cultural Resources Inventory of the Proposed Underground Test Area ER-EC-11 Well Pad and Access Road, Range EC South, Nevada Test and Training Range, Nye County, Nevada
Creators: name: Jones, Robert C.
Publisher: name: Desert Research Institute
Year: 2008
Subjects: Clark (County)
United States of America (Country)
Las Vegas, Nevada
Nevada (State / Territory)
Nye (County)
Nellis Air Force Base, Nevada
26NY13154
Reconnaissance / Survey

description: The archaeologists found site 26NY13154, a special purpose site, that is eligible to the National Register or Historic Places (NRHP) (Figure 3). DRl recommends that a new location be chosen for the well pad and access road and that site 26NY13154 be avoided by all construction activities. If the new location is near site 26NY13154, DRl recommends monitoring after all construction activities are completed. lf a new location can not be found and avoidance of the site is not possible, data recovery is recommended to mitigate potential adverse effects to the site.
Collections from Nellis Air Force Base: Sites, Materials, Curation Location
Creators: name: DeVos, Jim
Year: 1997
Subjects: Clark (County)
United States of America (Country)
Las Vegas, Nevada
Nevada (State / Territory)
Nye (County)
Nellis Air Force Base, Nevada
Artifact Inventory

description: Table listing artifacts and location from Nellis Air Force Base.
Coarse-grained model for spring friction study of micron-scale iron by smoothed particle hydrodynamics
Creators: name: Van Sang, Le
name: Yano, Akihiko
name: Fujii, Shuji
name: Sugimura, Natsuko
name: Washizu, Hitoshi
Publisher: name: arXiv
Year: 2018
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The paper constructs a coarse-grained model to investigate dry sliding friction of the body-centered-cubic Fe micron-scale system by smoothed particle hydrodynamics simulations and examines influences of the spring force on the characters of friction. The N_atom = 864 \times 10^12 atoms Fe system is coarse-grained into the two different simple-cubic particle systems, one of 432000 and the other of 16000 particles. From the detection of stick-slip motion, friction coefficient, dependence of friction coefficient on isotropy or anisotropy of the spring force and externally applied normal load, we find that the coarse-grained model is a reasonable modeling process for study of friction of the Fe system and the anisotropic behavior presents better friction of the system than the isotropic one.
Reduction of the two-body dynamics to a one-body description in classical electrodynamics
Creators: name: Buonanno, Alessandra
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the mapping of the conservative part of two-body electrodynamics onto that of a test charged particle moving in some external electromagnetic field, taking into account recoil effects and relativistic corrections up to second post-Coulombian order. Unlike the results recently obtained in general relativity, we find that in classical electrodynamics it is not possible to implement the matching without introducing external parameters in the effective electromagnetic field. Relaxing the assumption that the effective test particle moves in a flat spacetime provides a feasible way out.
description: 20 pages, revtex; minor changes
Zonal-mean atmospheric dynamics of slowly-rotating terrestrial planets
Creators: name: Colyer, G. J.
name: Vallis, G. K.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The zonal-mean atmospheric flow of an idealized terrestrial planet is analyzed using both numerical simulations and zonally symmetric theories, focusing largely on the limit of low planetary rotation rate. Two versions of a zonally symmetric theory are considered, the standard Held-Hou model, which features a discontinuous zonal wind at the edge of the Hadley cell, and a variant with continuous zonal wind but discontinuous temperature. The two models have different scalings for the boundary latitude and zonal wind. Numerical simulations are found to have smoother temperature profiles than either model, with no temperature or velocity discontinuities even in zonally symmetric simulations. Continuity is achieved because of the presence of an overturning circulation poleward of the point of maximum zonal wind, which allows the zonal velocity profile to be smoother than the original theory without the temperature discontinuities of the variant theory. Zonally symmetric simulations generally fall between the two sets of theoretical scalings, and have a faster polar zonal flow than either. Three-dimensional simulations that allow for eddy motion fall closer to the scalings of the variant model. At very low rotation rates the maximum zonal wind falls with falling planetary rotation rate, even in the three-dimensional simulations, and collapses completely at zero rotation. Nevertheless, the low-rotation limit of the overturning circulation is strong enough to drive the temperature profile close to a state of nearly constant potential temperature.
description: 25 pages, 10 figures
On the finite temperature $λφ^{4}$ and Gross-Neveu models. Is there a first order phase transition in $(λφ^{4})_{D=3}$?
Creators: name: Malbouisson, A. P. C.
name: Svaiter, N. F.
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the behavior of two diferent models at finite temperature in a $D$-dimensional spacetime. The first one is the $λφ^{4}$ model and the second one is the Gross-Neveu model. Using the one-loop approximation we show that in the $λφ^{4}$ model the thermal mass increase with the temperature while the thermal coupling constant decrese with the temperature. Using this facts we establish that in the $(λφ^{4})_{D=3}$ model there is a temperature $β^{-1}_{\star}$ above which the system can develop a first order phase transition, where the origin corresponds to a metastable vacuum. In the massless Gross-Neveu model, we demonstrate that for $D=3$ the thermal correction to the coupling constant is zero. For $D\neq 3$ our results are inconclusive. Pacs numbers: 11.10.Ef, 11.10.Gh
Experimental configuration and simulation mechanism from Experiment and simulation study of the effect of ethanol and compound additives on the urea-based selective non-catalytic reduction process under moderate temperature conditions
Creators: name: Wu, Bang
name: Pu, Ge
name: Jiantai Du
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: 90499 Chemical Engineering not elsewhere classified
subject: FOS: Chemical engineering
subject: 90799 Environmental Engineering not elsewhere classified
subject: FOS: Environmental engineering

description: ESM
Variance propagation for density surface models
Creators: name: Bravington, Mark V
name: Miller, David L
name: Hedley, Sharon L
Publisher: name: arXiv
Year: 2018
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Spatially-explicit estimates of population density, together with appropriate estimates of uncertainty, are required in many management contexts. Density Surface Models (DSMs) are a two-stage approach for estimating spatially-varying density from distance-sampling data. First, detection probabilities -- perhaps depending on covariates -- are estimated based on details of individual encounters; next, local densities are estimated using a GAM, by fitting local encounter rates to location and/or spatially-varying covariates while allowing for the estimated detectabilities. One criticism of DSMs has been that uncertainty from the two stages is not usually propagated correctly into the final variance estimates. We show how to reformulate a DSM so that the uncertainty in detection probability from the distance sampling stage (regardless of its complexity) is captured as an extra random effect in the GAM stage. In effect, we refit an approximation to the detection function model at the same time as fitting the spatial model. This allows straightforward computation of the overall variance via exactly the same software already needed to fit the GAM. A further extension allows for spatial variation in group size, which can be an important covariate for detectability as well as directly affecting abundance. We illustrate these models using point transect survey data of Island Scrub-Jays on Santa Cruz Island, CA and harbour porpoise from the SCANS-II line transect survey of European waters.
description: 38 pages (incl. supp. mat.), 5 figures
Integers and Fractions
Creators: name: Sen, Diptiman
Publisher: name: arXiv
Year: 1998
Subjects: subject: Popular Physics (physics.pop-ph)
subject: FOS: Physical sciences

description: This article briefly reviews the quantum Hall effect and the contributions of the winners of the 1998 Nobel Prize in Physics.
description: LaTeX, 6 pages, no figures. On the 1998 Nobel Prize in Physics. To appear in Current Science
Las Vegas Army Air Field/Nellis Air Force Base 1941-2011
Creators: name: DeVos, Jim
Year: 2011
Subjects: Clark (County)
United States of America (Country)
Las Vegas, Nevada
Nevada (State / Territory)
Nye (County)
Nellis Air Force Base, Nevada
Las Vegas Army Air Fied
Western Air Express Field
Flexible Gunnery School

description: Short presentation on the history of Nellis AFB. Presentation created by the 99 ABW History Office.
Certificate of English Editing from Experiment and simulation study of the effect of ethanol and compound additives on the urea-based selective non-catalytic reduction process under moderate temperature conditions
Creators: name: Wu, Bang
name: Pu, Ge
name: Jiantai Du
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: 90499 Chemical Engineering not elsewhere classified
subject: FOS: Chemical engineering
subject: 90799 Environmental Engineering not elsewhere classified
subject: FOS: Environmental engineering

description: certificate
An Inventory of 111 Acres for a Bypass Road and Staging Area at Creech Air Force Base, Clark County, Nevada NAFB Report 07-03
Creators: name: Myhrer, Keith
Year: 2007
Subjects: Clark (County)
United States of America (Country)
Las Vegas, Nevada
Creech Air Force Base
Nevada (State / Territory)
Nye (County)
Nellis Air Force Base, Nevada
Data Review
Records Search / Inventory Checking

description: Results of a data review, records search, and native american observation of an 111-acre area.