bluuebunny/crossref_metadata_2025 huggingface dataset:
TNFR2 ligation in human T regulatory cells enhances IL2-induced cell proliferation through the non-canonical NF-κB pathway
Authors: Wang Jun , Ferreira Ricardo , Lu Wanhua , Farrow Samatha , Downes Kate , Jermutus Lutz , Minter Ralph , Al-Lamki Rafia S. , Pober Jordan S. , Bradley John R.
Published: August 2018

Human T regulatory cells (T regs) express high levels of TNF receptor 2 (TNFR2). Ligation of TNFR2 with TNF, which can recognise both TNFR1 and TNFR2, or with a TNFR2-selective binding molecule, DARPin 18 (D18) activates canonical NF-κB signalling, assessed by IκBα degradation, and the magnitude of the response correlates with the level of TNFR2 expression. RNA-seq analysis of TNF- or D18-treated human T regs revealed that TNFR2 ligation induces transcription of NFKB2 and RELB, encoding proteins that form the non-canonical NF-κB transcription factor. In combination with IL2, D18 treatment is specific for T regs in (1) stabilising NF-κB-inducing kinase protein, the activator of non-canonical NF-κB signalling, (2) inducing translocation of RelB from cytosol to nucleus, (3) increasing cell cycle entry, and (4) increasing cell numbers. However, the regulatory function of the expanded T regs is unaltered. Inhibition of RelB nuclear translocation blocks the proliferative response. We conclude that ligation of TNFR2 by D18 enhances IL2-induced T regs proliferation and expansion in cell number through the non-canonical NF-κB pathway.
A universal curve of apatite crystallinity for the assessment of bone integrity and preservation
Authors: Dal Sasso Gregorio , Asscher Yotam , Angelini Ivana , Nodari Luca , Artioli Gilberto
Published: August 2018

The reliable determination of bioapatite crystallinity is of great practical interest, as a proxy to the physico-chemical and microstructural properties, and ultimately, to the integrity of bone materials. Bioapatite crystallinity is used to diagnose pathologies in modern calcified tissues as well as to assess the preservation state of fossil bones. To date, infrared spectroscopy is one of the most applied techniques for bone characterisation and the derived infrared splitting factor (IRSF) has been widely used to practically assess bioapatite crystallinity. Here we thoroughly discuss and revise the use of the IRSF parameter and its meaning as a crystallinity indicator, based on extensive measurements of fresh and fossil bones, virtually covering the known range of crystallinity degree of bioapatite. A novel way to calculate and use the infrared peak width as a suitable measurement of true apatite crystallinity is proposed, and validated by combined measurement of the same samples through X-ray diffraction. The non-linear correlation between the infrared peak width and the derived ISRF is explained. As shown, the infrared peak width at 604 cm−1can be effectively used to assess both the average crystallite size and structural carbonate content of bioapatite, thus establishing a universal calibration curve of practical use.
NMR Consequences of the Nucleus–Electron Spin Interactions
Authors: Parigi Giacomo , Luchinat Claudio
Published: August 2018

This chapter introduces readers to the principles of paramagnetism and to the effects of paramagnetism on NMR spectra. It provides an in-depth review of the equations describing the hyperfine shifts, composed of the contact and pseudocontact contributions, the paramagnetism-induced partial self-alignment and the subsequent paramagnetic residual dipolar couplings, and the paramagnetic relaxation enhancements to the nuclear relaxation rates. The dependence of these effects on the selected paramagnetic metal ion is also discussed.
Intrinsic and Extrinsic Paramagnetic Probes
Authors: Nitsche Christoph , Otting Gottfried
Published: August 2018

This chapter provides an overview of naturally occurring and chemically introduced paramagnetic centers in biomolecules. It discusses examples of paramagnetic metal ions in metalloproteins, where paramagnetic metals can act as intrinsic paramagnetic probes. Furthermore, biotechnological methods for the introduction of specific binding sites for paramagnetic metal ions are presented. Finally, the wide range of synthetic paramagnetic probes are discussed that have recently been developed for site-specific attachment to biomolecules.
Matrix effect of five kinds of meat on colloidal gold immunochromatographic assay for sulfamethazine detection
Authors: Liu Namei , Xing Keyu , Wang Chun , Zhang Ganggang , Yuan Meifang , Li Danhong , Lai Weihua , Peng Juan
Published: August 2018

A colloidal gold immunochromatographic assay (CG-ICA) was developed to detect sulfamethazine (SM2) residues in five kinds of meat: namely, chicken, pork, shrimp, beef, and fish.
Simultaneous enantiomeric analysis of chiral non-steroidal anti-inflammatory drugs in water, river sediment, and sludge using chiral liquid chromatography-tandem mass spectrometry
Authors: Yuan Xucan , Li Xianhui , Guo Ping , Xiong Zhili , Zhao Longshan
Published: August 2018

A sensitive and reliable analytical method for the simultaneous enantiomeric analysis of chiral non-steroidal anti-inflammatory drugs in water, river sediment, and sludge was established.
Structural, electrical and optical properties of epitaxial Ta-doped titania films by MOCVD
Authors: Zhao Wei , He Linan , Feng Xianjin , Luan Caina , Ma Jin
Published: August 2018

Epitaxial Ta-doped TiO2 films deposited via MOCVD were found to exhibit much improved electrical properties compared to the intrinsic TiO2.
Methanol as a hydrate inhibitor and hydrate activator
Authors: Kvamme Bjørn , Selvåg Juri , Saeidi Navid , Kuznetsova Tatiana
Published: August 2018

Water–methane interface broadening by low-dose methanol addition highlights the need for true surface sampling on the atomistic level.
A spectroscopic andab initiostudy of the hydrogen peroxide–formic acid complex: hindering the internal motion of H2O2
Authors: Li Leo Yuxiu , Seifert Nathan A. , Xie Fan , Heger Matthias , Xu Yunjie , Jäger Wolfgang
Published: August 2018

Hydrogen peroxide imprints its chirality onto the H2O2–formic acid complex, which results in an asymmetric tunnelling potential.
The role of intramolecular charge transfer and symmetry breaking in the photophysics of pyrrolo[3,2-b]pyrrole-dione
Authors: Tasior Mariusz , Hassanein Khaled , Mazur Leszek M. , Sakellari Ioanna , Gray David , Farsari Maria , Samoć Marek , Santoro Fabrizio , Ventura Barbara , Gryko Daniel T.
Published: August 2018

This paper reveals structurally unique π-expanded pyrrolo[3,2-b]pyrrole and its non-typical photophysical behaviour.
One-step electrodeposition of Pd–CeO2on high pore density foams for environmental catalytic processes
Authors: Ho P. H. , Ambrosetti M. , Groppi G. , Tronconi E. , Jaroszewicz J. , Ospitali F. , Rodríguez-Castellón E. , Fornasari G. , Vaccari A. , Benito P.
Published: August 2018

Electrodeposited Pd–CeO2on high pore density foams shows high activity and stability for environmental processes and outstanding mass transport properties.
Engineering P450LaMOstereospecificity and product selectivity for selective C–H oxidation of tetralin-like alkylbenzenes
Authors: Li Ren-Jie , Li Aitao , Zhao Jing , Chen Qi , Li Ning , Yu Hui-Lei , Xu Jian-He
Published: August 2018

ViaPhe scanning based protein engineering, P450LaMOincreased enantioselectivity to er 98 : 2 and product selectivity, alcohol : ketone, to ak 99 : 1.
White light emitting MgAl2O4:Dy3+,Eu3+ nanophosphor for multifunctional applications
Authors: Panigrahi Karamjyoti , Saha Subhajit , Sain Sumanta , Chatterjee Rituparna , Das Antika , Ghorai Uttam Kumar , Sankar Das Nirmalya , Chattopadhyay Kalyan Kumar
Published: August 2018

An efficient energy transfer from Dy3+ to Eu3+ in MgAl2O4 offers white light emission and self-referencing thermal behaviour.
Simultaneous elimination of cationic uranium(vi) and anionic rhenium(vii) by graphene oxide–poly(ethyleneimine) macrostructures: a batch, XPS, EXAFS, and DFT combined study
Authors: Huang Zhi-Wei , Li Zi-Jie , Wu Qun-Yan , Zheng Li-Rong , Zhou Li-Min , Chai Zhi-Fang , Wang Xiao-Lin , Shi Wei-Qun
Published: August 2018

Free and protonated amino groups anchored on the macrostructures are responsible for U(vi) and Re(vii) adsorption, respectively.
Thermal azide–alkene cycloaddition reactions: straightforward multi-gram access to Δ2-1,2,3-triazolines in deep eutectic solvents
Authors: Sebest Filip , Casarrubios Luis , Rzepa Henry S. , White Andrew J. P. , Díez-González Silvia
Published: August 2018

Straightforward preparation of 1,2,3-triazolines in Deep Eutectic Solvents.
Distributed fibre optofluidic laser for chip-scale arrayed biochemical sensing
Authors: Gong Chaoyang , Gong Yuan , Zhao Xuhao , Luo Yanhua , Chen Qiushu , Tan Xiaotian , Wu Yu , Fan Xudong , Peng Gang-Ding , Rao Yun-Jiang
Published: August 2018

We present a distributed fibre optofluidic laser based chip-scale arrayed sensor, which paves the way towards high-throughput biochemical sensing.
Core–shell MoS2@graphene composite microspheres as stable anodes for Li-ion batteries
Authors: Xue Haoliang , Wang Jie , Wang Shanshan , Muhammad Sohail , Feng Caihong , Wu Qin , Li Hansheng , Shi Daxin , Jiao Qingze , Zhao Yun
Published: August 2018

High-capacity lithium-ion battery anode materials of transition metal dichalcogenides often suffer from large volume expansion during lithiation, which causes capacity decay.
π-Stacked and unstacked aggregate formation of 3,3′-diethylthiatricarbocyanine iodide, a near-infrared dye
Authors: Wang Yue , Wang Rong , Imai Yoshitane , Hara Nobuyuki , Wan Xinhua , Nakano Tamaki
Published: August 2018

3,3′-Diethylthiatricarbocyanine iodide (DTCI) emits distinctive monomer and dimer emissions whose intensity ratio varied depending on concentration in methanol and water.
Supported heterogeneous catalysts: what controls cobalt nanoparticle dispersion on alumina?
Authors: Loedolff Matthys J. , Goh Bee-Min , Koutsantonis George A. , Fuller Rebecca O.
Published: August 2018

Bright field TEM and EFTEM overlay of Co and O maps highlight distribution of cobalt nanoparticles on alumina support.
Eaton's reagent assisted aromatic C–C coupling of carbazoles for optoelectronic applications
Authors: Yuan Jie , Jin Lu , Chen Runfeng , Tang Xingxing , Xie Xiang , Tang Yuting , Huang Wei
Published: August 2018

Bicarbazoles can be facilely synthesized by Eaton's reagent assisted C–C coupling via the Scholl reaction mechanism without using solvents and catalysts.
Band offsets in new BN/BX (X = P, As, Sb) lateral heterostructures based on bond-orbital theory
Authors: Zhou Wenhan , Liu Xuhai , Hu Xuemin , Zhang Shengli , Zhi Chunyi , Cai Bo , Guo Shiying , Song Xiufeng , Li Zhi , Zeng Haibo
Published: August 2018

Identifying heterostructures with tunable band alignments remains a difficult challenge.
Conjugation of a GM3 lactone mimetic on carbon nanotubes enhances the related inhibition of melanoma-associated metastatic events
Authors: Arosio Paolo , Comito Giuseppina , Orsini Francesco , Lascialfari Alessandro , Chiarugi Paola , Ménard-Moyon Cécilia , Nativi Cristina , Richichi Barbara
Published: August 2018

Carbon nanotubes conjugated to a mimetic of a melanoma-associated antigen interfere with adhesion, motility, and invasiveness of human melanoma cells.
New ferrocene modified retinoic acid with enhanced efficacy against melanoma cellsviaGSH depletion
Authors: Wang Yibo , Sun Bin , Han Bin , Hu Min
Published: August 2018

Malignant melanoma is a highly lethal disease, and advanced stages of melanoma have proven to be resistant to many chemotherapeutic drugs.
Preparation, characterization and catalytic application of nano-Fe3O4@SiO2@(CH2)3OCO2Na as a novel basic magnetic nanocatalyst for the synthesis of new pyranocoumarin derivatives
Authors: Tanuraghaj Hamideh Mohamadi , Farahi Mahnaz
Published: August 2018

We present a study on the synthesis, characterization and application of sodium carbonate tag silica-coated nano-Fe3O4 (Fe3O4@SiO2@(CH2)3OCO2Na) as a novel and efficient heterogeneous basic catalyst.
Expedient synthesis of eumelanin-inspired 5,6-dihydroxyindole-2-carboxylate ethyl ester derivatives
Authors: Aebly Andrew H. , Levy Jeffrey N. , Steger Benjamin J. , Quirke Jonathan C. , Belitsky Jason M.
Published: August 2018

Two concise syntheses of novel aryl- and heteroaryl-substituted 5,6-dimethoxyindole-2-carboxylate ethyl esters utilizing regioselective halogenation/dehalogenation and Suzuki coupling are presented.
An in situ eutectic remelting and oxide replacement reaction for superior thermoelectric performance of InSb
Authors: Xin Jiwu , Jiang Qinghui , Wen Yanwei , Li Sihui , Zhang Jie , Basit Abdul , Shu Liang , Li Xin , Yang Junyou
Published: August 2018

A synergistic strategy to improve the thermoelectric performance of InSb by introducing a replacement reaction and eutectic structure through adding TiO2.
Confined heat treatment of a Prussian blue analogue for enhanced electrocatalytic oxygen evolution
Authors: Zeng Yanhua , Chen Gao-Feng , Jiang Zhouyang , Ding Liang-Xin , Wang Suqing , Wang Haihui
Published: August 2018

A simple and feasible in situ synthesis and surface optimization strategy to enable the Ni-based Prussian blue analogue (NiFeII-PBA) with excellent electrocatalytic oxygen evolution performance by boosting its electron transport and the exposure of active sites.
Correction: Facile synthesis of NiS2 nanoparticles ingrained in a sulfur-doped carbon nitride framework with enhanced visible light photocatalytic activity: two functional roles of thiourea
Authors: Jourshabani Milad , Shariatinia Zahra , Achari Gopal , Langford Cooper H. , Badiei Alireza
Published: August 2018

Correction for ‘Facile synthesis of NiS2 nanoparticles ingrained in a sulfur-doped carbon nitride framework with enhanced visible light photocatalytic activity: two functional roles of thiourea’ by Milad Jourshabani et al., J. Mater. Chem. A, 2018, 6, 13448–13466.
A novel high-refractive index episulfide-thiol polymer for nanoimprinting optical elements
Authors: Tang Yunhui , Pina-Hernandez Carlos , Niu Qijian , Nie Jun , Cabrini Stefano
Published: August 2018

A novel episulfide-thiol optical polymer with a high refractive index (n = 1.707) can be thermally nanoimprinted at 160 °C with nanoscale size resolution showing excellent pattern fidelity and low defectivity, which exhibit the material as a potential candidate for applications in optical and optoelectronic devices.
Fluorescence modulation by fast photochromism of a [2.2]paracyclophane-bridged imidazole dimer possessing a perylene bisimide moiety
Authors: Mutoh Katsuya , Sliwa Michel , Fron Eduard , Hofkens Johan , Abe Jiro
Published: August 2018

We demonstrated the red-color fluorescence switching of a perylene bisimide (PBI) derivative by using a fast photochromic [2.2]paracyclophane-bridged imidazole dimer.
Code-Switching in Highly Proficient Spanish/English Bilingual Adults: Impact on Masked Word Recognition
Authors: García Paula B. , Leibold Lori , Buss Emily , Calandruccio Lauren , Rodriguez Barbara
Published: August 2018

Purpose

The purpose of this study was to evaluate the impact of code-switching on Spanish/English bilingual listeners' speech recognition of English and Spanish words in the presence of competing speech-shaped noise.

Method

Participants were Spanish/English bilingual adults (
N
= 27) who were highly proficient in both languages. Target stimuli were English and Spanish words presented in speech-shaped noise at a −14-dB signal-to-noise ratio. There were 4 target conditions: (a) English only, (b) Spanish only, (c) mixed English, and (d) mixed Spanish. In the mixed-English condition, 75% of the words were in English, whereas 25% of the words were in Spanish. The percentages were reversed in the mixed-Spanish condition.

Results

Accuracy was poorer for the majority (75%) and minority (25%) languages in both mixed-language conditions compared with the corresponding single-language conditions. Results of a follow-up experiment suggest that this finding cannot be explained in terms of an increase in the number of possible response alternatives for each picture in the mixed-language condition relative to the single-language condition.

Conclusions

Results suggest a cost of language mixing on speech perception when bilingual listeners alternate between languages in noisy environments. In addition, the cost of code-switching on speech recognition in noise was similar for both languages in this group of highly proficient Spanish/English bilingual speakers. Differences in response-set size could not account for the poorer results in the mixed-language conditions.
Design and investigation of absolute radiance calibration primary radiometer
Authors: Xin Ye , Xiaolong Yi , Wei Fang , Kai Wang , Yang Luo , Zhiwei Xia , Yupeng Wang
Published: August 2018

In order to satisfy the requirement of calibration precision and traceability for space remote sensor, the absolute radiance calibration primary radiometer (ARCPR) is investigated for establishing the irradiance calibration standard in orbit. ARCPR is a mechanical cryogenic absolute radiometer for space application, and works at 20K. The cryogenic environment is obtained by the Stryn‐type pulse tube cryocooler. The environment temperature is stable at 23.9658K by high‐precision temperature controllers. The detector of ARCPR is designed and investigated based on the experimental prototype. The experimental results of detector characteristics measurement illustrate that the sensitivity is 3.9526K/mW, and the thermal time constant is 134s. The procedure of optical power measurement is optimised for satisfying the requirements of in orbit measurement. ARCPR achieves a relative standard uncertainty of 210ppm at an optical power level of 0.4mW. Therefore, ARCPR could be the radiometric standard for optical measurement. Furthermore, the investigation result provides the theoretical and experimental basis for the establishment of radiometric calibration standard in orbit.
Sequence‐space‐aided SVM classifier for disturbance detection in series compensated transmission line
Authors: Patel Ujjaval J. , Chothani Nilesh G. , Bhatt Praghnesh J.
Published: August 2018

Sudden changes in loading or weak constitution of power network causes power swing which may aggravate miss‐operation of protective elements. Consequently, it becomes utmost essential to rapidly and accurately distinguish between fault and power swing conditions to prevent instability in smart power grid equipped with compensation. This study demonstrates an effective disturbance classifier scheme for series compensated transmission line (SCTL) for discrimination during disparity in power grid contexts using sequence‐space‐based support vector machine (SVM) classifier. The test data sets are generated by performing extensive simulations in PSCAD software by varying system and fault context. SVM architecture has been trained and tested by generating feature vector using modified full cycle discrete Fourier transform in MATLAB. After proper extraction of features of the interest at the time of disturbance, a decision about power swing or fault has been carried out using SVM classifiers. Regulation and kernel function parameter have been tuned using ten‐fold cross‐validation applied on training set. The developed scheme is also evaluated for symmetrical fault detection during power swing and shows remarkable improvement in accuracy and speed for protection of SCTL in comparison to existing schemes.
Anharmonicity and the infrared emission spectrum of highly excited polycyclic aromatic hydrocarbons
Authors: Chen Tao , Mackie Cameron , Candian Alessandra , Lee Timothy J. , Tielens Alexander G. G. M.
Published: August 2018

Aims. Infrared (IR) spectroscopy is a powerful tool to study molecules in space. A key issue in such analyses is understanding the effect that temperature and anharmonicity have on different vibrational bands, and thus interpreting the IR spectra for molecules under various conditions.

Methods. We combined second order vibrational perturbation theory and the Wang-Landau random walk technique to produce accurate IR spectra of highly excited polycyclic aromatic hydrocarbons. We fully incorporated anharmonic effects, such as resonances, overtones, combination bands, and temperature effects.

Results. The results are validated against experimental results for the pyrene molecule (C16H10). In terms of positions, widths, and relative intensities of the vibrational bands, our calculated spectra are in excellent agreement with gas-phase experimental data.
Distributed Computing for Small Experiments
Authors: Bauer Daniela
Published: August 2018

The large Large Hadron Collider experiments have successfully used distributed computing for years. The same infrastructure yields large opportunistic resources for smaller collaborations. In addition, some national grid initiatives make dedicated resources for small collaborations available. This article presents an overview of the services available and how to access them, including an example of how small collaborations have successfully incorporated distributed computing into their workflows.
Measurement of cross sections and couplings of the Higgs Boson in bosonic decay channels with the ATLAS detector
Authors: Belyaev Nikita
Published: August 2018

After the discovery of the Higgs boson, the measurement of its properties are of particular importance. In this paper, measurement of the cross sections and couplings of the Higgs boson in bosonic decay channels with the ATLAS detector are presented. Previous measurements of the spin and parity of this new particle, as well as the investigation of its couplings to other SM particles, revealed no significant deviations from the corresponding predictions for the Standard Model Higgs boson. In the years 2015-2017, the centre-of-mass energy √s and the integrated luminosity of the Large Hadron Collider was increased up to 13 TeV and 36.1 fb-1, respectively. With this improvements of the LHC, the properties of recently discovered Higgs boson can be studied in more details. In this paper, latest updates on cross sections and couplings analyses of the Higgs Boson are presented. The discussion will focus on the recent results obtained by the ATLAS collaboration in γγ and 4l Higgs boson decay channels as well as their combination.
Quantum networks: topology and spectral characterization
Authors: Berec Vesna
Published: August 2018

To utilize a scalable quantum network and perform a quantum state transfer within distant arbitrary nodes, coherence and control of the dynamics of couplings between the information units must be achieved as a prerequisite ingredient for quantum information processing within a hierarchical structure. Graph theoretic approach provides a powerful tool for the characterization of quantum networks with non-trivial clustering properties. By encoding the topological features of the underlying quantum graphs, relations between the quantum complexity measures are presented revealing the intricate links between a quantum and a classical networks dynamics.
Measurements of the Higgs H(125) boson at CMS
Authors: Botta Valeria
Published: August 2018

The most recent measurements of the Higgs H(125) boson in several final states, including decays to bosons, fermions, and the associated production of a Higgs boson with top quarks, are reviewed. Results have been obtained analysing the protonproton collision data collected with the CMS detector at the Large Hadron Collider (LHC) in 2016, corresponding to an integrated luminosity of 35.9 fb-1at a centre-of-mass energy of 13 TeV.
Probing the tricritical endpoint of QCD phase diagram at NICAFAIR energies
Authors: Bugaev K.A. , Ivanytskyi A.I. , Sagun V.V. , Zinovjev G.M. , Nikonov E.G. , Emaus R. , Bravina L.V. , Zabrodin E.E. , Taranenko A.V.
Published: August 2018

In this contributions we discuss the novel version of hadron resonance gas model which is based on the induced surface tension concept. Also we present new arguments in favor of a hypothesis that the chiral symmetry restoration transition in central nuclear collisions may occur at the center of mass energies 4.3-4.9 GeV and that the deconfinement phase transition may occur at the center of mass energies 8.8-9.2 GeV. These arguments are based on the unique thermostatic properties of the mixed phase and the ones of an exponential mass spectrum of hadrons.
Cosmological Implication of Electroweak Monopole
Authors: Cho Y.M.
Published: August 2018

We estimate the remnant electroweak monopole density of the standard model in the present universe. We show that, although the electroweak phase transition is of the first order, the monopole production comes from the thermal fluctuations of the Higgs field after the phase transition, not the vacuum bubble collisions during the phase transition. Moreover, most of the monopoles produced initially are annihilated as soon as created, and this annihilation continues very long time, longer than the muon pair annihilation time. As the result the remnant monopole density at present universe becomes very small, of 10-11 of the critical density, too small to be the dark matter. We discuss the physical implications of our results on the ongoing monopole detection experiments.
Physical models from noncommutative causality
Authors: Franco Nicolas
Published: August 2018

We introduced few years ago a new notion of causality for noncommutative spacetimes directly related to the Dirac operator and the concept of Lorentzian spectral triple. In this paper, we review in a non-technical way the noncommutative causal structure of many toy models as almost commutative spacetimes and the Moyal-Weyl spacetime. We show that those models present some unexpected physical interpretations as a geometrical explanation of the Zitterbewegung trembling motion of a fermion as well as some geometrical constraints on translations and energy jumps of wave packets on the Moyal spacetime.
Toward a QFT treatment of nonexponential decay
Authors: Giacosa Francesco
Published: August 2018

We study the properties of the survival probability of an unstable quantum state described by a Lee Hamiltonian. This theoretical approach resembles closely Quantum Field Theory (QFT): one can introduce in a rather simple framework the concept of propagator and Feynman rules, Within this context, we re-derive (in a detailed and didactical way) the well-known result according to which the amplitude of the survival probability is the Fourier transform of the energy distribution (or spectral function) of the unstable state (in turn, the energy distribution is proportional to the imaginary part of the propagator of the unstable state). Typically, the survival probability amplitude is the starting point of many studies of non-exponential decays. This work represents a further step toward the evaluation of the survival probability amplitude in genuine relativistic QFT. However, although many similarities exist, QFT presents some differences w.r.t. the Lee Hamiltonian which should be studied in the future.
Effective locality and gauge invariance
Authors: Grandou T.
Published: August 2018

A few years ago, based on standard functional manipulations, an unexpected property was proven to be satisfied by the fermionic Green's functions of QCD, and dubbed effective locality. This feature of QCD is non-perturbative as it results from a full integration of the fermionic and gluonic degrees of freedom. Previous derivations of effective locality are reviewed, corrected, and enlarged. Focussing on the way nonabelian gauge invariance is realized in the non-perturbative regime of QCD, the meaning of effective locality is proposed.
SU(2) Yang-Mills thermodynamics: A priori estimate and radiative corrections
Authors: Hofmann Ralf
Published: August 2018

We review and explain essential characteristics of the a priori estimate of the thermal ground state and its excitations in the deconfining phase of SU(2) Quantum Yang-Mills thermodynamics. This includes the spatially central and peripheral structure of Harrington-Shepard (anti)calorons, a sketch on how a spatial coarse-graining over (anti)caloron centers yields an inert scalar field, which is responsible for an adjoint Higgs mechanism, the identification of (anti)caloron action with ħ, a discussion of how, owing to (anti)caloron structure, the thermal ground state can be excited (wave-like and particlelike massless modes, massive thermal quasiparticle fluctuations), the principle role of and accounting for radiative corrections, the exclusion of energy-sign combinations due to constraints on momenta transfers in four-vertices in a completely fixed, physical gauge, dihedral diagrams and their resummation up to infinite loop order in the massive sector, and the resummation of the one-loop polarisation tensor of the massless modes. We also outline applications of deconfining SU(2) Yang-Mills thermodynamics to the Cosmic Microwave Background (CMB) which affect the cosmological model at high redshifts, the redshift for re-ionization of the Universe, the CMB angular power spectra at low l, and the late-time emergence of intergalactic magnetic fields.
Measurements of the Vector boson production with the ATLAS Detector
Authors: Kordas Kostas
Published: August 2018

The electroweak sector of the Standard Model can be tested by precision measurements of its fundamental parameters, such as the W boson mass or the electroweak mixing angle. In this contribution we present the first measurement of the W boson mass, based on the 7 TeV data set corresponding to an integrated luminosity of 4.6 fb-1. With this data set the detector and physics modelling have been studied in great detail, leading to an overall uncertainty of 19 MeV. The ATLAS collaboration also performed a new precise triple differential Z/γ* Drell-Yan cross-section measurement as a function of the dilepton mass, the dilepton rapidity and cos θ* defined in the Collins-Soper frame. This measurement provides sensitivity to the PDFs and the Z forward-backward asymmetry, AFB, which is derived and will be presented. The latter builds the foundation for a possible future extraction of the weak-mixing angle. The production of jets in association with vector bosons is an important process to study perturbative QCD in a multi-scale environment. The ATLAS collaboration has performed new measurements of vector boson plus jets cross sections, differential in several kinematic variables, in proton-proton collision data, taken at center-of-mass energies of 8 TeV and 13 TeV. These measurements are presented and compared to state-of-the art theory predictions. They are sensitive to higher-order pQCD effects, and can be used to constrain the proton structure. In addition, we present a new measurement of the splitting scales of the kt jet-clustering algorithm for final states containing a Z-boson candidate at a centre-of-mass energy of 8 TeV.
Measurement of the hadronic cross sections with the CMD-3 and SND detectors at the VEPP-2000 collider
Authors: Korol A.A. , Achasov M.N. , Akhmetshin R.R. , Amirkhanov A.N. , Anisenkov A.V. , Aulchenko V.M. , Aulchenko V.M. , Banzarov V.S. , Barnyakov A. Yu. , Bashtovoy N.S. , Beloborodov K.I. , Berdyugin A.V. , Berkaev D.E. , Berkaev D.E. , Bogdanchikov A.G. , Bondar A.E. , Botov A.A. , Bragin A.V. , Dimova T.V. , Druzhinin V.P. , Eidelman S.I. , Epifanov D.A. , Epshteyn L.B. , Erofeev A.L. , Fedotovich G.V. , Gayazov S.E. , Golubev V.B. , Grebenuk A.A. , Gribanov S.S. , Grigoriev D.N. , Ignatov F.V. , Ivanov V.L. , Kardapoltsev L.V. , Karpov S.V. , Kasaev A.S. , Kazanin V.F. , Kharlamov A.G. , Kirpotin A.N. , Koop I.A. , Koop I.A. , Korobov A.A. , Koshuba S.V. , Kovrizhin D.P. , Kozyrev A.N. , Kozyrev E.A. , Krokovny P.P. , Kupich A.S. , Kuzmenko A.E. , Kuzmin A.S. , Logashenko I.B. , Lukin P.A. , Lysenko A.P. , Lysenko A.P. , Martin K.A. , Melnikova N.A. , Mikhailov K. Yu. , Muchnoi N. Yu. , Obrazovsky A.E. , Okhapkin V.S. , Pakhtusova E.V. , Perevedentsev E.A. , Perevedentsev E.A. , Pestov Yu. N. , Popov A.S. , Razuvaev G.P. , Rogovsky Yu. A. , Rogovsky Yu. A. , Ruban A.A. , Ryskulov N.M. , Ryzhenenkov A.E. , Senchenko A.I. , Serednyakov S.I. , Shatunov P. Yu. , Shatunov Yu. M. , Shatunov Yu. M. , Shebalin V.E. , Shemyakin D.N. , Shtol D.A. , Shwartz B.A. , Shwartz D.B. , Sibidanov A.L. , Silagadze Z.K. , Skrinsky A.N. , Solodov E.P. , Surin I.K. , Talyshev A.A. , Tikhonov Yu. A. , Usov Yu. V. , Vasiljev A.V. , Vorobiov A.I. , Yudin Yu. V. , Zemlyansky I M.
Published: August 2018

Since December 2010 the CMD-3 and SND detectors detectors collect data at the VEPP-2000 electron-positron collider. In 2013-2015 the injection facility of the collider has undergone an upgrade of the injection system. The new BINP injection complex has been connected to the VEPP-2000 collider, so the restrictions connected to the lack of positrons and limited beam energy transfer do not apply any more. The collider luminosity in whole energy range is restricted now only by beam-beam effects. VEPP-2000 collider started to collect data with two detectors at 2016 year. The collected data sample since 2010 corresponds more than 100 pb-1 of integrated luminosity per detector in the c.m. energy between 0.32 and 2GeV. We will report here results of analysis of various hadronic cross sections from detectors both published and preliminary. These measurements are important by themselves and also because of the implications for anomaly of the magnetic moment of a muon (g-2) discrepancy.
Top quark measurements in the CMS experiment
Authors: Lista Luca
Published: August 2018

Experimental results on top-quark physics obtained at the CMS experiment are reported based on the data recorded at centre-of-mass energy up to 13 TeV. Inclusive and differential cross sections for both top-quark pair and single top-quark production are presented, as well as measurements of top-quark properties in production and decay, and searches for anomalous couplings. The presented measurements test theoretical predictions, including recent perturbative QCD calculations, provide constraints of fundamental standard model parameters, and set limits on physics beyond the standard model.
Exclusive J/Ψ,ρ,ϕ and γ production at HERA and LHC within dipole models
Authors: Luszczak Agnieszka
Published: August 2018

We describe exclusive J/ψ,ρ,Φ and γ production at HERA and calculate cross sections and transverse momentum distributions for the incoherent diffractive production of vector mesons J/ψ and γ on heavy nuclei. Within the color dipole approach, we derive the multiple scattering expansion of the incoherent diffractive cross section as an expansion over quasielastic scatterings of the color dipole. We compare our results to the measurement of the ALICE (LHC) collaboration for incoherent J/ψ production
Snapshots of neutrino oscillation physics today and a preview of tomorrow
Authors: Manly S.
Published: August 2018

Though neutrinos were first observed over 60 years ago, many interesting and fundamental questions remain to be answered. This paper provides a brief overview of neutrino oscillation physics (in the 3-neutrino limit) and how it contributes to our overall understanding of neutrinos. Selected results from current long baseline and reactor experiments are discussed. The increasingly important role played by neutrino interaction physics in oscillation analyses is explored. Finally, the status and goals of selected future experiments are mentioned.
New baryonic and mesonic observables from NA61/SHINE
Authors: Marcinek Antoni
Published: August 2018

One of the main objectives of the NA61/SHINE experiment at the CERN SPS is to study properties of strongly interacting matter. This paper presents new results on observables relevant for this part of the NA61/SHINE programme. These include the first ever measurements of ϕ meson production in p+p collisions at 40 and 80 GeV, and most detailed ever experimental data at 158 GeV. This contribution demonstrates the superior accuracy of the present dataset with respect to existing measurements. The comparison of p+p to Pb+Pb collisions shows a non-trivial system size dependence of the longitudinal evolution of hidden strangeness production, contrasting with that of other mesons. Furthermore, proton density fluctuations are investigated as a possible order parameter of the second order phase transition in the neighbourhood of the critical point (CP) of strongly interacting matter. An intermittency analysis is performed of the proton second scaled factorial moments in transverse momentum space. A previous analysis of this sort revealed significant power-law fluctuations for the “Si”+Si system at 158A GeV measured by the NA49 experiment. The fitted power-law exponent was consistent within errors with the theoretically expected critical value, a result suggesting a baryochemical potential in the vicinity of the CP of about 250MeV [24]. The analysis will now be extended to NA61/SHINE systems of similar size, Be+Be and Ar+Sc, at 150A GeV. Finally, spectator-induced electromagnetic (EM) effects on charged meson production are being studied and bring information on the space-time position of the pion formation zone, which appears to be much closer to the spectator system for faster pions than for slower ones. On that basis, we demonstrate that the longitudinal evolution of the system at CERN SPS energies may be interpreted as a pure consequence of local energymomentum conservation.
From a reversible code to the quantum one: R-matrix
Authors: Mironov S.
Published: August 2018

This research has been carried out in collaboration with D.Melnikov, A.Mironov, A.Morozov and An.Morozov. We study the relation between quantum programming and knot theory. The general idea is that knot theory provides a special basis for unitary matrices. We suggest to use R-matrices of knot theory as universal gates in quantum code. We also examine basic operations in reversible programming.
Measurement of anisotropy of dark matter velocity distribution using directional detection
Authors: Nagao Keiko I.
Published: August 2018

Although the velocity distribution of dark matter is assumed to be generally isotropic, some studies have found that ~25% of the distribution can have anisotropic components. As the directional detection of dark matter is sensitive to both the recoil energy and direction of nuclear recoil, directional information can prove useful in measuring the distribution of dark matter. Using a Monte Carlo simulation based on the modeled directional detection of dark matter, we analyze the differences between isotropic and anisotropic distributions and show that the isotropic case can be rejected at a 90% confidence level if O(104) events can be obtained.
Search for heavy neutrinos at the NA48/2 and NA62 experiments at CERN
Authors: Letizia Peruzzo
Published: August 2018

The NA48/2 experiment at CERN has collected large samples of charged kaons decaying into a pion and two muons for the search of heavy nuetrinos. In addition, its successor NA62 has set new limits on the rate of charged kaon decay into a heavy neutral lepton (HNL) and a lepton, with l = e; μ, using the data collected in 2007 and 2015. New limits on heavy neutrinos from kaon decays into pions, muons and positrons are presented in this report.
Recent CMS B physics results
Authors: Polikarpov Sergey
Published: August 2018

Various recent CMS B physics results are reported, including measurement of B hadron lifetimes; observation of Υ(1S) pair production; angular analysis of the rare decay B0 → K*0μ+μ-; search for X(5568) state. All analyses are performed using data collected by the CMS experiment at the LHC in pp collisions at √s = 8 TeV, which corresponds to an integrated luminosity of about 20 fb-1.
Pontryagin trace anomaly
Authors: Bonora L. , Cvitan M. , Dominis Prester P. , Pereira A. D. , Giaccari S. , štemberga T.
Published: August 2018

We review the recent results on the Pontryagin trace anomaly in QFT's with free Weyl fermion in curved four-dimensional spacetime.
The LUCID-2 detector
Authors: Sbrizzi A.
Published: August 2018

The LUCID-2 detector is the main online and ofline luminosity monitor of the ATLAS experiment. It is a compact Cherenkov detector made of photomultipliers with a 10 mm diameter quartz window acting as the Cherenkov medium. In order to provide a reliable luminosity measurement during years of data-taking, the LUCID-2 detector can use 104 different luminosity algorithms for each of the LHC colliding bunches. The detector stability is kept at a percent level thanks to an innovative monitoring system based on radioactive Bi-207 sources deposited on the photomultipliers quartz window. Combining the LUCID-2 measurement with those of other four ATLAS subdetectors, the luminosity has been estimated with a total uncertainty of 2.1% in 2015 and 2.2% in 2016.
Observation of ultra-high energy cosmic rays with the Telescope Array experiment
Authors: Takeishi Ryuji
Published: August 2018

The origin of ultra-high energy cosmic rays (UHECRs) has been a longstanding mystery. The Telescope Array (TA) is the largest experiment in the northern hemisphere observing UHECR in Utah, USA. It aims to reveal the origin of UHECR by studying the energy spectrum, mass composition and anisotropy of cosmic rays. TA is a hybrid detector comprised of three air fluorescence stations which measure the fluorescence light induced from cosmic ray extensive air showers, and 507 surface scintillator counters which sample charged particles from air showers on the ground. We present the cosmic ray spectrum observed with the TA experiment. We also discuss our results from measurement of the mass composition. In addition, we present the results from the analysis of anisotropy, including the excess of observed events in a region of the northern sky at the highest energy. Finally, we introduce the TAx4 experiment which quadruples TA, and the TA low energy extension (TALE) experiment.
Unruh effect in heavy ion collisions
Authors: Teslyk Maksym , Zabrodin Evgeny , Bravina Larisa
Published: August 2018

We apply the idea of the Unruh effect to the description of particle production in relativistic heavy ion collisions. Because the full information about all particles is needed, we employ the spectra of hadrons generated by the UrQMD model for pp and Au+Au collisions at various energies. Particles are considered as generated straight at the Unruh horizon thus allowing estimation of the Unruh temperature of the source. The analysis is provided for different types of mesons and their charges.
Vector states above open charm threshold at BESIII
Authors: Wang Zhi-yong
Published: August 2018

Based on the the large XYZ data sample collected at BESIII detector, we study the vector states above charm threshold, including the traditional charmonium and charmonium-like states, Y in many decay modes. For example, e+e- → hc, π+π-J/Ψ,Ψ(3686); e+e- → η(ή)J/Ψ. Many charmonium and charmonium-like candidates are found, but some of them need to be confirmed further with much larger data.
Chiral fluids: a few theoretical issues
Authors: Zakharov V. I. , Teryaev O. V.
Published: August 2018

We review briefly a few topic concerning physics of fluids whose constituents are massless fermions interacting in chiral invariant way. Macroscopic manifestations of the chral anomaly is one of central issues. Another topic is ultraviolet vs infrared sensistivity of chiral magnetic and vortical effects. To clarify dynamical issues involved we rely mostly on a (well-known) toy model of pionic superfluidity.
Cylindrical symmetry: II. The Green's function in 3+ 1 dimensional curved space
Authors: Kamath Gopinath
Published: August 2018

An exact solution to the heat equation in curved space is a much sought after; this report presents a derivation wherein the cylindrical symmetry of the metric gμν in 3 + 1 dimensional curved space has a pivotal role. To elaborate, the spherically symmetric Schwarzschild solution is a staple of textbooks on general relativity; not so perhaps, the static but cylindrically symmetric ones, though they were obtained almost contemporaneously by H. Weyl, Ann. Phys. Lpz. 54, 117 (1917) and T. Levi-Civita, Atti Acc. Lincei Rend. 28, 101 (1919). A renewed interest in this subject in C.S. Trendafilova and S.A. Fulling, Eur.J.Phys. 32, 1663(2011) - to which the reader is referred to for more references - motivates this work, the first part of which (cf.Kamath, PoS (ICHEP2016) 791) reworked the Antonsen-Bormann idea - arXiv:hep-th/9608141v1 - that was originally intended to compute theheat kernel in curved space to determine - following D.McKeon and T.Sherry, Phys. Rev. D 35, 3584 (1987) - the zeta-function associated with the Lagrangian density for a massive real scalar field theory in 3 + 1 dimensional stationary curved space to one-loop order, the metric for which is cylindrically symmetric. Using the same Lagrangian density the second part reported here essentially revisits the second paper by Bormann and Antonsen - arXiv:hep 9608142v1 but relies on the formulation by the author in S. G. Kamath, AIP Conf.Proc.1246, 174 (2010) to obtain the Green's function directly by solving a sequence of first order partial differential equations that is preceded by a second order partial differential equation.
Search for R-parity violating supersymmetry and quantum blackholes in eμ final state in CMS
Authors: Mukherjee Swagata
Published: August 2018

A search for narrow resonances decaying to an electron and a muon is performed using an integrated luminosity of 2.7 fb-1 of 13 TeV proton-proton collision data recorded with the CMS detector at the LHC. The eμ mass spectrum is also investigated for non-resonant contributions from the production of quantum black holes (QBH). With no evidence for physics beyond the standard model in the invariant mass spectrum of selected eμ pairs, upper limits are set at 95% confidence level on the product of cross section and branching fraction for signals arising in theories with charged lepton flavour violation. In the search for narrow resonances, the resonant production of a π sneutrino in R-parity violating supersymmetry is considered. The π sneutrino is excluded for masses below 1.0 TeV for couplings λ132 = λ231 = λ'311 = 0:01 and below 3.3 TeV for λ132 = λ231 = λ'311 = 0:2. In a framework of TeV-scale quantum gravity, for models that invoke extra dimensions, the observed exclusion limits for the threshold mass of QBH production range from 2.5 TeV for one extra dimension to 4.5 TeV for six extra
dimensions.
Assessing the integrity of CFRPs through nanomechanical mapping: the effect of CF surface modification
Authors: Koumoulos Elias P. , Kainourios Panagiotis , Charitidis Costas A.
Published: August 2018

The purpose of this study is to assess the effect of CF surface modification in enhancement of the wetting properties of carbon fibers in order to improve the adhesion force between the fiber and the polymer matrix; for this, the integrity of CFRPs through nanomechanical mapping was evaluated. The surface of commercial carbon fibers was functionalized through cyclic voltammetry in aqueous electrolyte solutions of H2SO4, in the presence of acrylic acid, methacrylic acid, acrylonitrile and N-vinylpyrrolidone monomers. The produced surface modified carbon fibers were embedded in epoxy resin. Elastic modulus nanoindentation mapping was performed in order for elastic modulus to be calculated, as a qualitative assessment of fibre – matrix interaction. For this, a grid protocol was set up for the integrity assessment of CFRPs through nanomechanical mapping.