305 research outputs found
Pseudorapidity Dependence of Multiplicity and Transverse Momentum Fluctuations in pp Collisions at SPS Energies
A search for the critical behavior of strongly interacting matter was performed at the NA61/SHINE experiment by studying event-by-event fluctuations of multiplicity and transverse momentum of charged hadrons produced in inelastic p+p collisions at 20, 31, 40, 80 and 158 GeV/c beam momentum. Results for the energy dependence of the scaled variance of the multiplicity distribution and for two families of strongly intensive are presented. These quantities were studied in different pseudorapidity intervals, which correspond to changing the baryon chemical potential and the temperature at the freeze-out stage. The strongly intensive measures Δ
Pressure dependence of the Shubnikov-de Haas oscillation pectrum of beta''-(BEDT-TTF)4(NH4)[Cr(C2O4)3].DMF
The Shubnikov-de Haas (SdH) oscillation spectra of the
beta''-(BEDT-TTF)4(NH4)[Cr(C2O4)\_3].DMF organic metal have been studied in
pulsed magnetic fields of up to either 36 T at ambient pressure or 50 T under
hydrostatic pressures of up to 1 GPa. The ambient pressure SdH oscillation
spectra can be accounted for by up to six fundamental frequencies which points
to a rather complex Fermi surface (FS). A noticeable pressure-induced
modification of the FS topology is evidenced since the number of frequencies
observed in the spectra progressively decreases as the pressure increases.
Above 0.8 GPa, only three compensated orbits are observed, as it is the case
for several other isostructural salts of the same family at ambient pressure.
Contrary to other organic metals, of which the FS can be regarded as a network
of orbits, no frequency combinations are observed for the studied salt, likely
due to high magnetic breakdown gap values or (and) high disorder level
evidenced by Dingle temperatures as large as about 7 K.Comment: To be published in European Physical Journal
Indication for the coexistence of closed orbit and quantum interferometer with the same cross section in the organic metal (ET)4(H3O)[Fe(C2O4)3].C6H4Cl2: Persistence of SdH oscillations above 30 K
Shubnikov-de Haas (SdH) and de Haas-van Alphen (dHvA) oscillations spectra of
the quasi-two dimensional charge transfer salt
"-(ET)(HO)[Fe(CO)]CHCl have been
investigated in pulsed magnetic fields up to 54 T. The data reveal three basic
frequencies F, F and F, which can be interpreted on the basis
of three compensated closed orbits at low temperature. However a very weak
thermal damping of the Fourier component F, with the highest amplitude, is
evidenced for SdH spectra above about 6 K. As a result, magnetoresistance
oscillations are observed at temperatures higher than 30 K. This feature, which
is not observed for dHvA oscillations, is in line with quantum interference,
pointing to a Fermi surface reconstruction in this compound.Comment: published in Eur. Phys. J. B 71 203 (2009
The subject of crime: the problem of establishing age limits of criminal responsibility
This article presents the authors’ analysis of the problem of determining the subject of a crime as a legal concept, and defining the legal characteristics of a person who has committed a crime by features that are necessary for criminal responsibility (individual, age, and responsibility
Геодивайдер 102–103° в.д. в современной структуре литосферы Центральной Азии
A quasi-linear zone of noticeable geological and geophysical changes, which coincides approximately with 102–103° E meridians, is termed by the authors as “geodivider”. Active submeridional faults are observed predominantly along the zone and coincide with its strike. Seismicity is most intensive in the central part of this zone, from the Lake Baikal to the Three Rivers Region at the Sino-Myanmar frontier. Transects with deep seismic sections and energy dissipation graphs show most sharply increasing seismic energy amounts and hypocenter depths in the western part of the geodivider which delimits (in the first approximation) the Central Asian and East Asian transitional zones between the North Eurasian, Indian and Pacific lithosphere plates. The transpression tectonic regime dominates west of the geodivider under the influence of the Hindustan Indentor pressure, and the transtension regime prevails east of it due to the Pacific subduction slab submergence and continuation. The regime change coincides with an abrupt increase in the crust thickness – from 35–40 km to 45–70 km – west of the geodivider, as reflected in the geophysical fields and metallogenic characteristics of the crust. The direction of P- and S-waves anisotropy together with the GPS data show decoupling layers of the crust and mantle in the southern part of the geodivider. According to our investigations, the 102–103° E geodivider is a regional geological-geophysical border that may be compared with the Tornquist Line, and, by its scale, with the Uralian and Appalachian fronts and some others large structures.Квазилинейная зона заметных геологических и геофизических изменений совпадает приблизительно с меридианами 102–103° в.д. Активные субмеридиональные разломы развиты в этой зоне, названной авторами геодивайдером 102–103° в.д. Наиболее интенсивная сейсмичность характеризует центральную часть геодивайдера от озера Байкал до региона Трех рек на границе Китая и Мианмар. Проведение трансектов с глубинными сейсмическими разрезами и графиками диссипации сейсмической энергии показывает преимущественно резкое возрастание объемов сейсмической энергии и глубины гипоцентров на западном крыле геодивайдера. Геодивайдер разделяет, в первом приближении, Центрально-Азиатскую и Восточно-Азиатскую транзитные зоны между Северо-Евразийской, Индийской и Тихоокеанской литосферными плитами. Тектонический режим транспрессии преобладает к западу от геодивайдера под влиянием давления Индостанского индентора, и режим транстенсии распространен к востоку от него, благодаря глубокому погружению и продолжению Тихоокеанского слэба. Смена режимов совпадает с резким увеличением мощности коры к западу от геодивайдера от 35–40 до 45–70 км, отражающимся в геофизических полях и коровых металлогенических характеристиках. Направление P- и S-волн анизотропии наряду с данными GPS показывает их несовпадение в различных слоях коры и мантии в южной части геодивайдера. По результатам наших исследований геодивайдер 102–103° в.д. представляет собой тип геолого-геофизической границы, сопоставимой с линией Торнквиста, по масштабу с Уральским и Аппалачским фронтами и с рядом других крупных структур
The functions of slang in the work of Faïza Guène
This article analyzes the slang linguistic elements of Faïza Guène's entire fictional wor
Methods of improving effectiveness of agrolandscape utilization in Zaporizhia oblast (Ukraine)
We examine the issues concerning the rational use of the
potential of agrolandscapes in Zaporizhia oblast. Among the new promising
techniques of improving effectiveness of their utilization, it is necessary to
highlight an increase in the percentage of forest land on the territory concurrently
with the introduction of soil-protection systems of crop farming. There is a need to
pay more attention to melliferous plants in crop rotations and in the composition of
field-protective afforestation in order to drive up earnings from apiculture as well
as to promote rural (green) tourism in agrolandscapes which is becoming an
increasingly popular kind of recreation. Furthermore, an enhancement in efficiency
of agricultural nature management is aided by clearly defined and legislatively
established responsibility of land users for non-purpose-oriented use of lands
2-Hydroxypropyl derivatives of 1,2,3-thiadiazole and 1,2,3-triazole: Synthesis and antifungal activity
A series of novel 5-(2-hydroxypropyl)amino-1,2,3-thiadiazole and 5-(2-hydroxy - propyl)sulfanyl-1,2,3-triazole derivatives were designed and synthesized as candidate fungicides. The new compounds were identified by NMR and IR spectroscopy, mass spectro metry, and elemental analysis. Their antifungal activities were evaluated. © 2011 IUPAC.2010CB126105; 201002250; National Natural Science Foundation of China, NSFC: 20872071, 20911120069; Natural Science Foundation of Tianjin City: 10JCZDJC17500; National Key Research and Development Program of China, NKRDPC: 2011BAE06B02, 2011BAE06B05This study was funded in part by grants from the National Natural Science Foundation of China (Nos. 20872071, 20911120069), the Tianjin Natural Science Foundation (10JCZDJC17500), the National Key Project for Basic Research (2010CB126105), the National Key Technology Research and Development Program (Nos. 2011BAE06B02 and 2011BAE06B05), and the Foundation of Achievements Transformation and Spreading of Tianjin Agricultural Science and Technology (No. 201002250)
New crystal packing arrangements in radical cation salts of BEDT-TTF with [Cr(NCS)6]3− and [Cr(NCS)5(NH3)]2−
BEDT-TTF forms three packing arrangement styles in its radical cation salts with [Cr(NCS)6]3− in two of which two trans-oriented isothiocyanate ligands penetrate the BEDT-TTF layers either at the point where a solvent (nitrobenzene) is incorporated in a stack of donors or by four donor molecules forming a “tube” motif to accept a ligand at each end along with a small solvent molecule in between (acetonitrile). The [Cr(NCS)5NH3]2− ion forms a related crystal packing arrangement with BEDT-TTF with a reduction in the number of “tube” motifs needed to accept an isothiocyanate ligand
ГЕОДИНАМИЧЕСКИЕ РЕЖИМЫ ЦЕНТРАЛЬНОЙ АЗИИ ЗАПАДНЕЕ И ВОСТОЧНЕЕ ГЕОРАЗДЕЛА 102–104°
Ample geologic and geophysical data provide the basis for distinguishing the 102–104° E geodivider in the North, Central and South Asia. The geodivider’s central part is confirmed by the data on seismicity, seismically active faults and the modern crust block structure. These data and historical and instrumentally identified earthquake epicenters were used for a more correct definition of the block boundaries and interblock zones in the central part of the geodivider and in its wings. Seismic energy is considerably increased (to 1011–1016 J) in the eastern part of the geodivider’s western wing, and rarely increased directly in the geodivider itself. Near the geodivider, a seismic energy increase is detected east of it only at the western border of the South-Eastern China Block. The authors analyzed deep seismic sections and constructed energy dissipation graphs along transects crossing the geodivider and its western wing. The analysis and the graphs show the predomination of left-lateral NW-striking slips in the north, thrusts to the east and southeast in the center, and right-lateral NE-striking slips in the south. The total seismic energy increases constantly to the west. In the central and northern segments of the geodivider’s central part and west of it, horizontal blocks displacements cause a direct influence on seismicity level increasing and changes in geodynamic regimes within the investigated territory of Central Asia. Changes in the horizontal displacement vector are accompanied by the change of tectonic strain regimes. Increased heat flow values to the east from the geodivider within the East Asian transit zone are probably related to the change of the geodynamic regimes in the same direction under the influence of the submerged Pacific slab. The data obtained by the Chinese and Russian researchers confirm delamination (stratification) processes in the Southeast Tibet crust during its interaction with the colder and thicker lithosphere of Southeast China, and displacement of its upper layers to the southeast and south, as we supposed in our earlier publications.Геораздел 102–104° в.д. выделяется по многочисленным геологическим и геофизическим признакам в Северной, Центральной и Южной Азии, подтверждаемым в его центральной части данными по сейсмичности, сейсмоактивным разломам и современному блоковому строению земной коры. На основании этих данных и по распространению эпицентров инструментально зафиксированных и исторических землетрясений откорректированы границы блоков и межблоковых зон в центральной части геораздела и на его крыльях. Значительное возрастание объемов высвобождающейся сейсмической энергии до 1011–1016 Дж происходит в восточной части западного крыла геораздела, реже – непосредственно в нем, а к востоку от него – только на западной границе блока Юго-Восточного Китая вблизи геораздела. Проведенный авторами анализ глубинных сейсмических разрезов и графиков диссипации энергии вдоль трансектов, пересекающих геораздел и его западное крыло, показывает преобладание левосторонних сдвигов с северо-западным простиранием на севере, надвигов к востоку и юго-востоку в центре и правосторонних сдвигов с северо-восточным простиранием на юге. Общий уровень объема энергии постоянно возрастает к западу. Перемещения по горизонтали блоков в центральном и северном сегментах центральной части геораздела 102–104° в.д. и к западу от него по данным GPS оказывают непосредственное влияние на увеличение уровня сейсмичности и изменение геодинамических режимов в пределах изучаемых районов Центральной Азии. Смена направления векторов горизонтального перемещения сопровождается изменением режима тектонических напряжений. Установлено возрастание значений теплового потока к востоку от геораздела в Восточно-Азиатской транзитной зоне, предположительно связанное со сменой геодинамического режима в том же направлении под влиянием погруженного тихоокеанского слэба. Данные по сейсмической анизотропии и томографии литосферы, полученные китайскими и российскими исследователями, подтверждают процессы деламинации коры Юго-Восточного Тибета при ее взаимодействии с более холодной и мощной литосферой Юго-Восточного Китая и перемещение ее верхних слоев к юго-востоку и к югу, предполагавшееся в более ранних работах авторов
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