1,312 research outputs found
Enhancement of Kerr nonlinearity via multi-photon coherence
We propose a new method of resonant enhancement of optical Kerr nonlinearity
using multi-level atomic coherence. The enhancement is accompanied by
suppression of the other linear and nonlinear susceptibility terms of the
medium. We show that the effect results in a modification of the nonlinear
Faraday rotation of light propagating in an Rb87 vapor cell by changing the
ellipticity of the light.Comment: 4 pages, 3 figures Submitted to Optics Letter
Radiation trapping in coherent media
We show that the effective decay rate of Zeeman coherence, generated in a
Rb87 vapor by linearly polarized laser light, increases significantly with the
atomic density. We explain this phenomenon as the result of radiation trapping.
Our study shows that radiation trapping must be taken into account to fully
understand many electromagnetically induced transparency experiments with
optically thick media
Psychological Training as a Means of Development of a Secondary Vocational Pedagogical Establishment Leaver's Communicative Competence
ΠΡΠΈ ΡΠΈΠ½Π°Π½ΡΠΎΠ²ΠΎΠΉ ΠΏΠΎΠ΄Π΄Π΅ΡΠΆΠΊΠ΅ Π ΠΎΡΡΠΈΠΉΡΠΊΠΎΠ³ΠΎ Π³ΡΠΌΠ°Π½ΠΈΡΠ°ΡΠ½ΠΎΠ³ΠΎ Π½Π°ΡΡΠ½ΠΎΠ³ΠΎ ΡΠΎΠ½Π΄Π°, ΠΏΡΠΎΠ΅ΠΊΡ β 08-06-14134
Yorick's Whiskers: the poetics of T. Tolstaya's small prose and its translations into English
The objective of the study is to educe the particular features of T. Tolstaya's small prose. Her texts are characterized by a high density of literary meanings and great complexity of literary structure. The article explores the correlations between these two phenomena by analyzing the short story βYorickβ and its translation into English. We uncover the literary meanings of the text, which are formed by means of a number of global cultural contexts (biographical, historical, literary, and mythopoetical). We also study the form that they take in Tolstaya's literary discourse and provide a comparative analysis of the discoursive literary techniques used by the author and their rendering by the translator. Both the analysis technique and the materials presented in the article can be used in teaching literary translation to students of Russian or English
Prevention method of toric intraocular lens rotation after phacoemulsification of cataract using a standard capsule ring
At the same time, phacoemulsification of cataracts remains the most popular surgery. But the problem among phacosurgeons is the correction of existing corneal astigmatism. According to studies, about 30% of the world's population have corneal astigmatism with a strength of 0.75D and above, which leads to a decrease in visual acuity after phacoemulsification of cataracts in the absence of its correction.The most commonly used method to correct corneal astigmatism is the implantation of toric intraocular lenses (TIOL). The main condition for obtaining high visual acuity after TIOL implantation is the location of the astigmatic component of the artificial lens in accordance with the strong meridian of the cornea. The aim of this study was to evaluate the effectiveness of the proposed method of preventing the toric intraocular lens rotation after phacoemulsification of cataracts in the eyes with corneal astigmatism by implantation of a standart capsule ring.Material and methods. The article presents the results of a comprehensive examination of 43 patients (59 eyes) who underwent surgery by phacoemulsification of cataracts with implantation of toric IOL to correct concomitant corneal astigmatism. Corneal astigmatism according to keratometry ranged from 0.5D to 4.25D (average 1.96 Β± 0.1 D). Patients were divided into 2 groups. The first group consisted of 26 patients (31 eyes). Patients in this group underwent phacoemulsification with toric IOL implantation according to standard techniques without the use of techniques that prevent rotation of the artificial lens in the postoperative period. The second group included 18 patients (28 eyes) who were operated on according to our proposed prevention method of TIOL rotation. As a result of the study, it was found that rotation of TIOL was detected 6 months after surgery in the I group without the use of developed method in 22 eyes (70.9%), in the II group, where the capsule ring was implanted, rotation occurred in 12 eyes (42.85%). In the II group in all cases, the deviation of the TIOL axis did not exceed 6 degrees. The proposed method of prevention of rotation of TIOL allows to increase the efficiency of phacoemulsification of cataracts.Conclusions. Developed a method of preventing the rotation of the toric intraocular lens using a standard capsule ring, which is implanted and located on top of the haptic support elements of the artificial lens can increase the efficiency of phacoemulsification of cataracts in the eyes with corneal astigmatism, contributes to the rotational stability of the toric lens and provides long-term results of visual functions, reduces the need for repeated surgery due to reposition of the rotated lens and can be recommended for implementation in the practice of ophthalmic surgeons.The use of implantation of a standard capsule ring according to the proposed in this study method prevents the rotation of the toric intraocular lens by more than 6 degrees in all cases, which does not significantly reduce visual acuity and does not require reposition of the artificial lens. This method of preventing rotation of the toric intraocular lens allows to achieve visual acuity of 0.7 and above in 85.6% of cases
Binary Archetype in Ben Eltonβs Novel βTwo Brothersβ
The novel of the modern British writer Ben Elton βTwo Brothersβ (2012) is analyzed in terms of the functioning of the binary archetype in it. It is noted that contemporary cultural-historical thinking is characterized by a rejection of the classical rational type of thinking based on binary oppositions. The restoration of a certain clear opposition in B. Eltonβs novel is interpreted as the authorβs desire to preserve the opposition of humanitarian ideology to fascism at the present stage of socio-cultural development. It is established that the artistic structure of the novel clearly correlates with the tradition of twin myths. The author of the article draws attention to the fact that the plot of the novel is connected with the fate of two boys from a Jewish family, one of whom was his own son, and the second, a German by nationality, was adopted. It is emphasized that according to the laws of the twin myth, they conflict among themselves, but this is an imaginary confrontation, because in fact the brothers belong to the world of Germany, which opposed the onslaught of Nazi ideology. It is shown that at the deep level of his work, Ben Elton builds a distinct binary opposition of Good and Evil, in which there can be no justification for chauvinism as an extreme manifestation of fascist doctrine
Nonlinear Magneto-Optical Rotation of Elliptically Polarized Light
We predict theoretically and demonstrate experimentally an ellipticity-dependent nonlinear magneto-optic rotation of elliptically-polarized light propagating in a coherent atomic medium. We show that this effect results from a hexadecapole and higher order momenta of atomic coherence, and is associated with an enhancement of Kerr and higher orders nonlinearities accompanied by suppression of the other linear and nonlinear susceptibility terms of the medium. These nonlinearities might be useful for quantum signal processing. In particular, we report an observation of an enhancement the polarization rotation of elliptically polarized light resonant with the 5S_{1/2} F=2 -> 5P_{1/2} F=1 transition of Rb87
Dialogical organics of pedagogical discourse: linguo-pragmatic aspect
The article discusses the basic dialogue properties; it is particularly emphasized that the problems of studying the text, discourse and language of the operationalterminological apparatus are connected with the discursive concept of dialogis
Gaming as Means of Teaching Foreign Language Communication
The problem of using foreign language as means of communication between professionals with different cultural backgrounds is considered. Attention is paid to the communicationoriented and professionally-directed nature of the course of learning a foreign language in not-linguistic high school. The defining characteristics of the learning process organized with gaming using are described. General overview of the typology of pedagogical games is made.Π Π°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°Π΅ΡΡΡ ΠΏΡΠΎΠ±Π»Π΅ΠΌΠ° ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ ΠΈΠ½ΠΎΡΡΡΠ°Π½Π½ΠΎΠ³ΠΎ ΡΠ·ΡΠΊΠ° ΠΊΠ°ΠΊ ΡΡΠ΅Π΄ΡΡΠ²Π° ΠΎΠ±ΡΠ΅Π½ΠΈΡ ΠΌΠ΅ΠΆΠ΄Ρ ΡΠΏΠ΅ΡΠΈΠ°Π»ΠΈΡΡΠ°ΠΌΠΈ, ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»ΡΡΡΠΈΠΌΠΈ ΡΠ°Π·Π½ΡΠ΅ ΠΊΡΠ»ΡΡΡΡΡ. Π£Π΄Π΅Π»ΡΠ΅ΡΡΡ Π²Π½ΠΈΠΌΠ°Π½ΠΈΠ΅ ΠΊΠΎΠΌΠΌΡΠ½ΠΈΠΊΠ°ΡΠΈΠ²Π½ΠΎ-ΠΎΡΠΈΠ΅Π½ΡΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠΌΡ ΠΈ ΠΏΡΠΎΡΠ΅ΡΡΠΈΠΎΠ½Π°Π»ΡΠ½ΠΎ-Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½Π½ΠΎΠΌΡ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΡ ΠΊΡΡΡΠ° ΠΎΠ±ΡΡΠ΅Π½ΠΈΡ ΠΈΠ½ΠΎΡΡΡΠ°Π½Π½ΠΎΠΌΡ ΡΠ·ΡΠΊΡ Π² Π½Π΅ΡΠ·ΡΠΊΠΎΠ²ΠΎΠΌ Π²ΡΠ·Π΅. ΠΠΏΠΈΡΡΠ²Π°ΡΡΡΡ ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΡΡΠΈΠ΅ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΠΎΠ±ΡΡΠ΅Π½ΠΈΡ, ΠΎΡΠ³Π°Π½ΠΈΠ·ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ Π³Π΅ΠΉΠΌΠΈΠ½Π³Π°. ΠΡΠΏΠΎΠ»Π½Π΅Π½ ΠΎΠ±ΡΠΈΠΉ ΠΎΠ±Π·ΠΎΡ ΡΠΈΠΏΠΎΠ»ΠΎΠ³ΠΈΠΈ ΠΏΠ΅Π΄Π°Π³ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
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