Discriminating between technicolor and warped extra dimensional model via pp →\to ZZ channel

We explore the possibility to discriminate between certain strongly-coupled technicolor (TC) models and warped extra-dimensional models where the Standard Model fields are propagating in the extra dimension. We consider a generic QCD-like TC model with running coupling as well as two TC models with walking dynamics. We argue that due to the different production mechanisms for the lowest-lying composite tensor state in these TC theories compared to the first Kaluza-Klein graviton mode of warped extra-dimensional case, it is possible to distinguish between these models based on the angular analysis of the reconstructed longitudinal Z bosons in the $pp \to ZZ \to$ four charged leptons channel.Comment: 16 pages, 3 figures, 1 tabl

A Perturbative Realization of Miransky Scaling

Near conformal dynamics is employed in different extensions of the standard model of particle interactions as well as in cosmology. Many of its interesting properties are either conjectured or determined using model computations. We introduce a relevant four dimensional gauge theory template allowing us to investigate such dynamics perturbatively. The gauge theory we consider is quantum chromodynamics with the addition of a meson-like scalar degree of freedom as well as an adjoint Weyl fermion. At the two-loop level, and in the Veneziano limit, we firmly establish the existence of several fixed points of which one is all directions stable in the infrared. An interesting feature of the model is that this fixed point is lost, within the perturbatively trustable regime, by merging with another fixed point when varying the number of quark flavors. We show the emergence of the Miransky scaling and determine its properties. We are also able to determine the walking region of the theory which turns out to be, at large number of colors, about 12% of the conformal window. Furthermore, we determine highly relevant quantities for near conformal dynamics such as the anomalous dimension of the fermion masses.Comment: 17 pages, 8 figure

Emergence of supersymmetry on the surface of three dimensional topological insulators

We propose two possible experimental realizations of a 2+1 dimensional spacetime supersymmetry at a quantum critical point on the surface of three dimensional topological insulators. The quantum critical point between the semi-metallic state with one Dirac fermion and the s-wave superconducting state on the surface is described by a supersymmetric conformal field theory within $\epsilon$-expansion. We predict the exact voltage dependence of the differential conductance at the supersymmetric critical point.Comment: 8 pages, 2 figures; published versio

Synthesis of tetrathioesters and tetrathioamides based p-tert- butylthiacalix[4]arene and studying their recognition abilities towards different metals by extraction

p-tert-Butylthiacalix[4]arene tetrathioesters 2a-c and tetrathioamides 4a-c in three different conformers (cone, partial cone and 1,3-alternate respectively) have been synthesized. The later were characterized by different physical methods IR, 1H NMR, 13C NMR and X-ray crystallography. Their recognition abilities towards different alkali, earth alkaline and transition metals such as (Na+, K+, Cs +, Ba2+, Pb2+, Ag+, Cd2+, Hg2+ and Co2+) cations have been examined by metal picrate extraction from aqueous solutions into dichloromethane. Graphical Abstract: [Figure not available: see fulltext.] © 2013 Springer Science+Business Media Dordrecht

Constraints on Conformal Windows from Holographic Duals

We analyze a beta function with the analytic form of Novikov-Shifman-Vainshtein-Zakharov result in the five dimensional gravity-dilaton environment. We show how dilaton inherits poles and fixed points of such beta function through the zeros and points of extremum in its potential. Super Yang-Mills and supersymmetric QCD are studied in detail and Seiberg's electric-magnetic duality in the dilaton potential is explicitly demonstrated. Non-supersymmetric proposals of similar functional form are tested and new insights into the conformal window as well as determinations of scheme-independent value of the anomalous dimension at the fixed point are presented.Comment: Fig. 5b is corrected to match the discussion in the tex

Phosphorus macrocycles and cryptands

The reviews covers authors" studies dealing with the synthesis of PIII- and PV-containing macrocycles and cryptands. The separation, structural characterization, and the chemical properties of a number of homeomorphic compounds with in,out bridgehead phosphorus atoms are described. Modification of the in-positions in macrobicyclic compounds with bulky groups is described for the first time

Nanoconjugates of a calixresorcinarene derivative with methoxy poly(ethylene glycol) fragments for drug encapsulation

© 2018 Ermakova et al. In order to obtain a non-toxic amphiphilic calixresorcinarene capable to form nanoconjugates for drug encapsulation, tetraundecylcalixresorcinarene functionalized by methoxy poly(ethylene glycol) chains has been synthesized. The macrocycle obtained is characterized by low hemotoxicity. In aqueous solution it forms nanoassociates that are able to encapsulate organic substrates of different hydrophobicity, including drugs (doxorubicin, naproxen, ibuprofen, quercetin). The micelles of the macrocycle slowed down the release of the hydrophilic substrates in vitro. In physiological sodium chloride solution and phosphate-buffered saline, the micelles of the macrocycle acquire thermoresponsive properties and exhibit a temperature-controlled release of doxorubicin in vitro. The combination of the low toxicity and the encapsulation properties of the obtained calixresorcinarene-mPEG conjugate shows promising potential for the use as a supramolecular drug-delivery system

Vacuum stability of asymptotically safe

We study the phase diagram and the stability of the ground state for certain four-dimensional gauge-Yukawa theories whose high-energy behaviour is controlled by an interacting fixed point. We also provide analytical and numerical results for running couplings, their crossover scales, the separatrix, and the Coleman-Weinberg effective potential. Classical and quantum stability of the vacuum is established

ОБГРУНТУВАННЯ ВИКОРИСТАННЯ ФІТОБІОТИКІВ ДЛЯ КОРЕКЦІЇ ЗАХИСНИХ ФУНКЦІЙ ОРГАНІЗМУ СВИНЕЙ

The substitution of antibiotics by natural substances of plant origin is a step to decrease the number of gastro–intestinal disorders and to improve the performances of the growth and development of different kinds of animals. The positive influence of the above preparations can be explained by the potential of the substances to support useful microflora of gastro–intestinal tract that protects the animal from pathogenic bacteria and alleviates the course of stress periods. The review of the publications of the Ukrainian and foreign scientists on the use of feeds additives in the animal husbandry that contain phytobiotics and antioxidants has been given in the article. It has been found out that natural stimulators of growth (NSG) are the perspective of the substitution of antibiotic stimulators of growth (ASG) on modern animal breeding farms. Such products as organic acids, immunomodulators, probiotics, prebiotics, synbiotics, ferments or phytobiotics have proved their efficacy in providing feeds safety, supporting the health of gastro–intestinal tract and in the improvement of growth performances in different kinds of animals. Different natural stimulators of growth, combined in the balanced mixture, have a positive effect and help to resist the invasion of pathogenic agents and unfavorable conditions of maintenance.  Замена антибиотиков естественными веществами растительного происхождения является эффективным шагом для снижения количества желудочно–кишечных расстройств и улучшения показателей роста и развития различных видов животных. Благотворное влияние этих препаратов объясняется потенциалом данных веществ в поддержке полезной микрофлоры желудочно–кишечного тракта, которая защищает животное от патогенных бактерий и смягчает течение стрессовых периодов.В статье приведен анализ первоисточников зарубежных и отечественных ученых по применению в животноводстве кормовых добавок, содержащих фитобиотики и антиоксиданты.Установлено, что природные стимуляторы роста (ПСР) – это многообещающая концепция замены антибиотических стимуляторов роста (АСР) в современных животноводческих хозяйствах. Такие продукты как органические кислоты, иммуномодуляторы, пробиотики, пребиотики, синбиотики, ферменты или фитобиотики показали свою эффективность в обеспечении безопасности кормов, поддержании здоровья желудочно–кишечного тракта и улучшения показателей роста у различных видов животных.Различные ПСР, объединенные в сбалансированную смесь, имеют эффективное действие, противостоят вторжению патогенных организмов и неблагоприятным условиям содержания.Заміна антибіотиків природніми речовинами рослинного походження є ефективним кроком у зниженні кількості шлунково–кишкових розладів і покращенні показників зростання і розвитку різних видів тварин. Сприятливий вплив цих препаратів пояснюється потенціалом даних речовин у підтримці корисної мікрофлори шлунково–кишкового тракту, яка захищає тварину від патогенних бактерій і пом'якшує перебіг стресових періодів. У статті наведено аналіз першоджерел зарубіжних і вітчизняних науковців щодо застосування у тваринництві кормових добавок, які вміщують фітобіотики та антиоксиданти. Встановлено, що природні стимулятори росту (ПСР) – це багатообіцяюча концепція заміни антибіотичних стимуляторів росту (АСР) в сучасних тваринницьких господарствах. Такі продукти, як органічні кислоти, імуномодулятори, пробіотики, пребіотики, синбіотики, ферменти або фітобіотики показали свою ефективність у забезпеченні безпеки кормів, підтримці здоров'я шлунково–кишкового тракту і поліпшення показників зростання у різних видів тварин. Різні ПСР, об'єднані в збалансовану суміш, мають ефективну дію, протистоять вторгненню патогенних організмів і несприятливим умовам утримання. &nbsp