944 research outputs found
Une source cadastrale du district de Temnikov (1613/14) : Lecture continue et étude statistique
No full textÀ l’issue du Temps des Troubles fut lancée une description des terres de l’État russe nécessaire au pouvoir nouvellement installé. La dozornaja kniga du district de Temnikov, établie en 1613/14 par Ivan Usov et ses collègues, est une des rares sources cadastrales de ce type qui nous est parvenue. Sa valeur pour l’histoire des cadastres comme pour l’histoire des Tatars est incontestable. L’auteur présente ici les remarques qui se sont imposées à elle lors de la lecture suivie et de l’étude statistique de cette source. Elle aborde notamment les méthodes de compilation du cadastre, les caractéristiques du peuplement et de la population, la question religieuse, le statut de détenteurs de biens-fonds et insiste sur les questions auxquelles ne permet pas de répondre ce document.By the end of the ‘Times of Trouble’ (Smutnoe vremja), the Russian state initiated a survey of its lands – a project, which was essential to its newly installed power. The dozornaja kniga of the Temnikov district, which was compiled in 1613/14 by Ivan Usov and his colleagues, constitutes one of the few existing cadastral sources of this kind. Its value for the history of cadastral registers and for the history of the Tatars is indisputable. In this article, the author presents those aspects of the document that impressed her as she read it and made a statistical analysis of the data it contains. She examines, among other things, the methods employed in compiling the register, the characteristics of the settlement and the population, the religious question, and the status of landowners. Finally, she reflects on the questions that remain unanswered in the document
The Image of a Doctor in Modern Russian Cinema of a New “Moral Concern”
No full textThe article discusses a number of Russian films where the main characters are doctors (Ragin by K. Serebrennikov, Ward No 6 by K. Shakhnazarov, Wild Field by M. Kalatozishvili, Arrhythmia by B. Khlebnikov, and Doctor by A. Temnikov). Through such characters cinema examines society for its humanity, civic responsibility, moral values, and viability. The social sentiments of the 2000s, which can be designated as moral anxiety, find their expression on the screen in the person of a medical profession who diagnoses society for its traumatization and offers solutions.
Analysing the image of a doctor on the screen, the author formulates the cultural codes behind the representation of such characters in modern Russian cinema and draws conclusions about the urgent demand of society for spirituality accumulated in artistic images
Measurements of the anti-p d annihilation at rest
No full textThe measurement of different reactions of d annihilation at rest in a gaseous target has been performed using the OBELIX spectrometer at LEAR (CERN). A strong deviation from the OZI-rule prediction was found from the measurement of the ratio in two regions of proton momenta, P < 200 MeV/c and P > 400 MeV/c: and (113 ± 30) × 10−3, respectively. These values are about 30 times greater than the theoretical prediction. For the first time the excitation of the †-resonance was observed among the final-state products of d annihilation. The existence of a broad enhancement in the 4π invariant mass at m ≈ 1480 MeV, seen in previous experiments, was confirmed. A ≈ 100 MeV downward shift of the bump position, when the proton momentum increased up to P > 400 MeV/c, was also observed, while the positions of ω, ϱ and f2(1270) did not change with the proton momentum. The following branching ratios were measured: .
Meson spectroscopy with S- and P-wave-dominant initial-state selection in anti-p p annihilation
No full textThe possibility of selecting the initial angular-momentum state from which antiproton-proton annihilation at rest can occur can be a fundamental tool in meson spectroscopy. With the OBELIX detector different target systems have been employed, ranging from S-wave to P-wave dominance. The preliminary results both on meson spectroscopy and branching ratio measurements are discusse
Observation of vacuum induced birefringence induced by a transverse magnetic field
No full textThe PVLAS experiment operates an ellipsometer based on a Fabry-Perot optical cavity that embraces a superconducting dipole magnet and can measure ellipticity and rotation induced by the magnetic field onto linearly polarized laser light. With a residual pressure less than 10^-7 mbar the apparatus gives ellipticity signals at the level of 10^-11 rad per light passage through 1 m of 5 Tesla transverse magnetic field of 532 nm wavelength green laser light. These signals can be interpreted as being generated largely by vacuum birefringence. If this interpretation of the observed signals is valid, a tool has become available to characterize physical properties of vacuum as if it were an ordinary transparent medium. The main source of the induced ellipticity could be the existence of ultralight bosons with mass of the order of 10^-3 eV that would couple to two photons and would be created in the experiment by interactions of photons of the laser beam with virtual photons of the magnetic field. The apparatus is calibrated in amplitude and in phase by measuring Cotton-Mouton ellipticity in gases. The ellipticity induced in vacuum has phase opposite to that of the CME ellipticity induced with noble gases in the interaction region. If the ellipticity signals observed in vacuum are due to authentic quantum vacuum birefringence and not to the apparatus, and a microscopic interpretation of the effect in terms of existence of spin zero ultralight bosons is valid, the observed phase of the ellipticity implies a positive parity of the bosons. The ultralight bosons would then be scalars
Experimental observation of vacuum birefringence
No full textThe PVLAS experiment operates an ellipsometer based on a Fabry-Perot optical cavity that embraces a superconducting rotating dipole magnet and can measure the ellipticity induced by the magnetic field onto linearly polarized laser light. With a residual pressure less than 10(-7) mbar the apparatus gives ellipticity signals at the level of 10(-11)rad per passage through 1m of 5 Tesla transverse magnetic field of 532nm wavelength laser light. These signals can be interpreted as being generated largely by vacuum birefringence. If this interpretation is valid, a tool has become available to characterize physical properties of vacuum as if it were an ordinary transparent medium. The main source of the induced ellipticity could be the existence of ultralight bosons with mass of the order of 10(-3) eV that would couple to two photons and would be created in the experiment by interactions of photons of the laser beam with virtual photons of the magnetic field. The apparatus is calibrated in amplitude and in phase by measuring Cotton-Mouton ellipticity in gases. The ellipticity induced in vacuum has phase opposite to that of the CME ellipticity induced with noble gases in the interaction region. If the ellipticity signals observed in vacuum are due to authentic quantum vacuum birefringence and not to the apparatus, and a microscopic interpretation of the effect in terms of existence of spin zero ultralight bosons is valid, the observed phase of the ellipticity implies a positive parity of the bosons. The ultralight bosons would then be scalars
The φπ+/ωπ+ ratio from anti-n p annihilations
No full textA preliminary study of n ¯ p three-prong annihilations into the channels K− K+ π+ and π− π+ π+ π0 is presented for ∼ 100-297 MeV/c n ¯ momenta. The extracted φπ+/ωπ+ production ratio shows that also in this channel, never measured before using an n ¯ p beam, the OZI rule is strongly violate
A new measurements of the Pontecorvo reaction anti-p d ->p- p with the OBELIX spectrometer at LEAR
No full textAntinucleon-nucleus annihilations into two-body final states containing only one or no meson
are unusual annihilations (Pontecorvo reactions), practically unexplored experimentally, with the
exception of the channel p d + r- p, for which only two low-statistics measurements exist. Their
physical interest lies in the possibility of exploring small-distance nuclear dynamics, in which an
important role can be played by non-nucleonic degrees of freedom. A new measurement of the
D d + r- p reaction rate at rest, performed with the OBELIX spectrometer at LEAR, with the
best statistics up to now and a careful evaluation of systematic effects is reported, together with
a critical analysis of the existing theoretical models. The measured branching ratio, which
confirms the previous results, can represent a reference point for the studies in the field
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