265 research outputs found

    Indium Arsenide Solid Solutions: Devices Based on InGaAs(P)

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    This paper is a review of literature and data dealing with the properties of indium arsenide-based solid solutions and several devices on InGaAs(P)/ZnP heterostructures. Possible practical applications of the 111 V-II12VI,heterostructures are indicated.The most interesting results obtained in the fabrication of high quality heterostructures, including modulation-doped and quantum-dimensional ones are demonstrated. The epitaxial methods bsed for the production of heterostructures are comparatively analised. Data about applicability ofepitaxial methodsfor fabrication ofdifferent device structures are reported.An interesting 'cleaning' effect taking place at the InGaAs(P) crystallization by LPE from solutions containing rare-earth elements is described.A review of recently published works on fabrication of effective FET ismade. The HEMT technology thought to be the most promising one, issupposed to contribute to a qualitatively new development stage of large integral circuits on A3B5, while a combination of HEMT with thetechnology of quantum-dimensional lasers is expected to accelerate thecreation of high speed response integral circuits

    Дискурсивно-прагматичСскоС ΠΌΠΎΠ΄Π΅Π»ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ языкового ΠΎΠ±Ρ€Π°Π·Π°

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    The paper considers the problems of language modeling of the image of the world, allowing to recreate the basic concepts, topics of reality they represent. A special place is occupied among them by the modeling of the subjective image of a charismatic personality, which in one way or another personifies the life-sense of his era (Peter I, mother Theresa, Iron Lady, Theresa May, etc.). The focus is on the spiritual, physical and ideological modi of the created language image, its suggestive interaction and the development of society. The peculiarity of the linguistic image is that the person is synergistically recreated, he is not outside of the subjective attitude of the author of the text, whether it is mass media or artistic and historical texts. Though subjective, the linguistic image is created through the speech interpretation of realities. The linguistic image embodies the real world with the help of semantic dynamics of words, representing ideologemes, culturemes and concepts as cognitive-discursive constructs of a socially significant event.El artΓ­culo considera los problemas del modelado del lenguaje de la imagen del mundo, permitiendo recrear los conceptos bΓ‘sicos, temas de la realidad que representan. Un lugar especial estΓ‘ ocupado entre ellos por el modelado de la imagen subjetiva de una personalidad carismΓ‘tica, que de una u otra manera personifica el sentido de la vida de su Γ©poca (Pedro I, madre Teresa, Hierro Dama, Teresa Mayo, etc.). La atenciΓ³n se centra en el modo espiritual, fΓ­sico e ideolΓ³gico de la imagen del lenguaje creado, su interacciΓ³n sugerente y el desarrollo de la sociedad. La peculiaridad de la imagen lingΓΌΓ­stica es que la persona se recrea de forma sinΓ©rgica, no estΓ‘ fuera de la actitud subjetiva del autor del texto, ya sea en los medios de comunicaciΓ³n o en los textos artΓ­sticos e histΓ³ricos. Aunque subjetiva, la imagen lingΓΌΓ­stica se crea a travΓ©s de la interpretaciΓ³n del habla de las realidades. La imagen lingΓΌΓ­stica encarna el mundo real con la ayuda de dinΓ‘micas semΓ‘nticas de palabras, representando ideologΓ­as, culturemas y conceptos como construcciones cognitivas-discursivas de un evento socialmente significativo.Π’ ΡΡ‚Π°Ρ‚ΡŒΠ΅ Ρ€Π°ΡΡΠΌΠ°Ρ‚Ρ€ΠΈΠ²Π°ΡŽΡ‚ΡΡ ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌΡ‹ языкового модСлирования ΠΎΠ±Ρ€Π°Π·Π° ΠΌΠΈΡ€Π°, ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡŽΡ‰ΠΈΠ΅ Π²ΠΎΡΡΠΎΠ·Π΄Π°Ρ‚ΡŒ основныС понятия, Ρ‚Π΅ΠΌΡ‹ Ρ€Π΅Π°Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ ΠΎΠ½ΠΈ ΠΏΡ€Π΅Π΄ΡΡ‚Π°Π²Π»ΡΡŽΡ‚. ОсобоС мСсто срСди Π½ΠΈΡ… Π·Π°Π½ΠΈΠΌΠ°Π΅Ρ‚ ΠΌΠΎΠ΄Π΅Π»ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ ΡΡƒΠ±ΡŠΠ΅ΠΊΡ‚ΠΈΠ²Π½ΠΎΠ³ΠΎ ΠΎΠ±Ρ€Π°Π·Π° харизматичСской личности, которая Ρ‚Π°ΠΊ ΠΈΠ»ΠΈ ΠΈΠ½Π°Ρ‡Π΅ олицСтворяСт ΠΆΠΈΠ·Π½Π΅Π½Π½Ρ‹ΠΉ смысл Π΅Π³ΠΎ эпохи (ΠŸΠ΅Ρ‚Ρ€ I, ΠΌΠ°Ρ‚ΡŒ Π’Π΅Ρ€Π΅Π·Π°, ЖСлСзная Π»Π΅Π΄ΠΈ, Π’Π΅Ρ€Π΅Π·Π° Мэй ΠΈ Π΄Ρ€.). ОсновноС Π²Π½ΠΈΠΌΠ°Π½ΠΈΠ΅ удСляСтся Π΄ΡƒΡ…ΠΎΠ²Π½Ρ‹ΠΌ, физичСским ΠΈ идСологичСским способам создаваСмого языкового ΠΎΠ±Ρ€Π°Π·Π°, Π΅Π³ΠΎ Π²Π½ΡƒΡˆΠ°ΡŽΡ‰Π΅ΠΌΡƒ Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡ‚Π²ΠΈΡŽ ΠΈ Ρ€Π°Π·Π²ΠΈΡ‚ΠΈΡŽ общСства. ΠžΡΠΎΠ±Π΅Π½Π½ΠΎΡΡ‚ΡŒ языкового ΠΎΠ±Ρ€Π°Π·Π° Π·Π°ΠΊΠ»ΡŽΡ‡Π°Π΅Ρ‚ΡΡ Π² Ρ‚ΠΎΠΌ, Ρ‡Ρ‚ΠΎ Ρ‡Π΅Π»ΠΎΠ²Π΅ΠΊ синСргСтичСски воссоздан, ΠΎΠ½ Π½Π΅ находится Π²Π½Π΅ ΡΡƒΠ±ΡŠΠ΅ΠΊΡ‚ΠΈΠ²Π½ΠΎΠ³ΠΎ ΠΎΡ‚Π½ΠΎΡˆΠ΅Π½ΠΈΡ Π°Π²Ρ‚ΠΎΡ€Π° тСкста, Π±ΡƒΠ΄ΡŒ Ρ‚ΠΎ срСдства массовой ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΈ ΠΈΠ»ΠΈ худоТСствСнно-историчСскиС тСксты. ЛингвистичСский ΠΎΠ±Ρ€Π°Π·, хотя ΠΈ ΡΡƒΠ±ΡŠΠ΅ΠΊΡ‚ΠΈΠ²Π½Ρ‹ΠΉ, создаСтся посрСдством Ρ€Π΅Ρ‡Π΅Π²ΠΎΠΉ ΠΈΠ½Ρ‚Π΅Ρ€ΠΏΡ€Π΅Ρ‚Π°Ρ†ΠΈΠΈ Ρ€Π΅Π°Π»ΠΈΠΉ. ЛингвистичСский ΠΎΠ±Ρ€Π°Π· Π²ΠΎΠΏΠ»ΠΎΡ‰Π°Π΅Ρ‚ Ρ€Π΅Π°Π»ΡŒΠ½Ρ‹ΠΉ ΠΌΠΈΡ€ с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ сСмантичСской Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠΈ слов, прСдставляя ΠΈΠ΄Π΅ΠΎΠ»ΠΎΠ³Π΅ΠΌΡ‹, ΠΊΡƒΠ»ΡŒΡ‚ΡƒΡ€ΠΌΡ‹ ΠΈ понятия ΠΊΠ°ΠΊ ΠΊΠΎΠ³Π½ΠΈΡ‚ΠΈΠ²Π½ΠΎ-дискурсивныС конструкции ΡΠΎΡ†ΠΈΠ°Π»ΡŒΠ½ΠΎ Π·Π½Π°Ρ‡ΠΈΠΌΠΎΠ³ΠΎ события

    IGHV3-21 gene expression in patients with b-cell chronic lymphocytic leukemia in Ukraine

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    The aim of the study was to evaluate the frequency of IGHV3-21 gene usage and its clinical significance for patients with B-cell chronic lymphocytic leukemia (CLL) in Ukraine. Patients and Methods: Immunoglobulin variable heavy chain (IGHV) gene repertoire was studied in 189 CLL patients using reverse transcribed polymerase chain reaction and direct sequence of amplified products. Results: IGHV3-21 gene expression was found in 11 cases (5.8%), and its frequency was intermediate between Scandinavian (11.7%) and Mediterranean CLL (2.9%) cohorts. The most of cases (9 of 11) belonged to subset with heterogeneous HCDR3 (heteroHCDR3 subset), and only 2 cases – to subset with classical short ARDANGMDV motif (homHCDR3 subset). Six IGHV3-21 cases were mutated and 5 cases were unmutated. All unmutated cases (all were from heteroHCDR3 subset) had similarity of their HCDR3s with previously published sequences. The differences in overall (OS), progression-free (PFS) and treatment-free survival (TFS) for IGHV3-21 positive patients in comparison with CLL patients expressing the other IGHV genes were statistically insignificant. These survival parameters were comparable also for CLL patients with mutated IGHV3-21 gene usage and expression the others mutated IGHV genes. But remarkable feature of IGHV3-21 expressing patients was high incidence of solid tumors. They have developed in 4 IGHV3-21 positive cases (36.4%) and in 10 cases with expression of the others IGHV genes (5.6%, p = 0.0002). Furthermore, in small group of 6 patients with mutated IGHV3-21 gene expression, 3 patients had solid tumors and one underwent Richter transformation. Unmutated IGHV3-21 gene expressed patients had worse OS and PFS in comparison with CLL patients that expressed the others unmutated IGHV genes. Conclusion: Presented data are in agrement with the opinion about negative prognostic significance of IGHV3-21 gene expression regardless its mutation status. IGHV3-21 expression was associated with development of secondary solid tumors. Revealed high level of homology in heteroHDR3s subset might suggest about possible antigenic influence also, in addition to homHCDR3 subset that was proposed earlier.ЦСль: ΠΎΡ†Π΅Π½ΠΈΡ‚ΡŒ частоту использования Π³Π΅Π½Π° IGHV3-21 ΠΈ Π΅Π³ΠΎ клиничСскоС Π·Π½Π°Ρ‡Π΅Π½ΠΈΠ΅ для Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… B-ΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½Ρ‹ΠΌ хроничСским Π»ΠΈΠΌΡ„ΠΎΠ»Π΅ΠΉΠΊΠΎΠ·ΠΎΠΌ (Π₯Π›Π›) Π² Π£ΠΊΡ€Π°ΠΈΠ½Π΅. Π‘ΠΎΠ»ΡŒΠ½Ρ‹Π΅ ΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹ исслСдования: Ρ€Π΅ΠΏΠ΅Ρ€Ρ‚ΡƒΠ°Ρ€ Π³Π΅Π½ΠΎΠ² Π²Π°Ρ€ΠΈΠ°Π±Π΅Π»ΡŒΠ½Ρ‹Ρ… участков тяТСлых Ρ†Π΅ΠΏΠ΅ΠΉ ΠΈΠΌΠΌΡƒΠ½ΠΎΠ³Π»ΠΎΠ±ΡƒΠ»ΠΈΠ½ΠΎΠ² (IGHV) ΠΈΠ·ΡƒΡ‡Π°Π»ΠΈ Ρƒ 189 Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… с Π₯Π›Π› с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ ΠΏΠΎΠ»ΠΈΠΌΠ΅Ρ€Π°Π·Π½ΠΎΠΉ Ρ†Π΅ΠΏΠ½ΠΎΠΉ Ρ€Π΅Π°ΠΊΡ†ΠΈΠΈ Π½Π° Π±Π°Π·Π΅ ΠΎΠ±Ρ€Π°Ρ‚Π½ΠΎΠΉ транскрипции ΠΈ прямого сиквСнса Π°ΠΌΠΏΠ»ΠΈΡ„ΠΈΡ†ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹Ρ… ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ‚ΠΎΠ². Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹: экспрСссия Π³Π΅Π½Π° IGHV3-21 выявлСна Ρƒ 11 ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² (5,8%), Ρ‡Ρ‚ΠΎ Π·Π°Π½ΠΈΠΌΠ°Π΅Ρ‚ ΠΏΡ€ΠΎΠΌΠ΅ΠΆΡƒΡ‚ΠΎΡ‡Π½ΠΎΠ΅ ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ΠΈΠ΅ ΠΌΠ΅ΠΆΠ΄Ρƒ Бкандинавской (11,7%) ΠΈ БрСдизСмноморской (2,9%) ΠΊΠΎΠ³ΠΎΡ€Ρ‚Π°ΠΌΠΈ. Π‘ΠΎΠ»ΡŒΡˆΠΈΠ½ΡΡ‚Π²ΠΎ случаСв (9 ΠΈΠ· 11) ΠΎΡ‚Π½ΠΎΡΠΈΠ»ΠΈΡΡŒ ΠΊ ΠΏΠΎΠ΄Π³Ρ€ΡƒΠΏΠΏΠ΅ с Π³Π΅Ρ‚Π΅Ρ€ΠΎΠ³Π΅Π½Π½Ρ‹ΠΌ Ρ‚Ρ€Π΅Ρ‚ΡŒΠΈΠΌ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΌΠ΅Π½Ρ‚Π°Ρ€Π½Ρ‹ΠΌΡ€Π΅Π³ΠΈΠΎΠ½ΠΎΠΌ (heteroHCDR3 ΠΏΠΎΠ΄Π³ΡƒΠΏΠΏΠ°) ΠΈ Ρ‚ΠΎΠ»ΡŒΠΊΠΎ 2 случая β€” ΠΊ ΠΏΠΎΠ΄Π³Ρ€ΡƒΠΏΠΏΠ΅ с ΠΊΠΎΡ€ΠΎΡ‚ΠΊΠΈΠΌ классичСским ARDANGMDV ΠΌΠΎΡ‚ΠΈΠ²ΠΎΠΌ (homHCDR ΡƒΠΏΠΏΠ°). Π΅ΡΡ‚ΡŒ IGHV3-21-ΠΏΠΎΠ·ΠΈΡ‚ΠΈΠ²Π½Ρ‹Ρ… случаСв Π±Ρ‹Π»ΠΈ ΠΌΡƒΡ‚ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹ΠΌΠΈ ΠΈ 5 β€” Π½Π΅ΠΌΡƒΡ‚ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹ΠΌΠΈ. ВсС Π½Π΅ΠΌΡƒΡ‚ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹Π΅ случаи (всС ΠΈΠ· heteroHCDR ΡƒΠΏΠΏΡ‹) ΠΈΠΌΠ΅Π»ΠΈ сходство HCDR3 с Π°Π½Π΅Π΅ описанными ΠΏΠΎΡΠ»Π΅Π΄ΠΎΠ²Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΡΠΌΠΈ. Различия Π² ΠΎΠ±Ρ‰Π΅ΠΉ выТиваСмости (OS), Π΄Π»ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ ΠΏΠ΅Ρ€ΠΈΠΎΠ΄Π° Π΄ΠΎ прогрСссии заболСвания (PFS) ΠΈ Π½Π°Ρ‡Π°Π»Π° лСчСния (TFS) для IGHV3-21-ΠΏΠΎΠ·ΠΈΡ‚ΠΈΠ²Π½Ρ‹Ρ… Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… Π±Ρ‹Π»ΠΈ статистичСски Π½Π΅Π·Π½Π°Ρ‡ΠΈΠΌΡ‹ ΠΏΠΎ ΡΡ€Π°Π²Π½Π΅Π½ΠΈΡŽ с ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚Π°ΠΌΠΈ с Π₯Π›Π› с экспрСссиСй Π΄Ρ€ΡƒΠ³ΠΈΡ… IGHV-Π³Π΅Π½ΠΎΠ². Π£ΠΊΠ°Π·Π°Π½Π½Ρ‹Π΅ ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€Ρ‹ Ρ‚Π°ΠΊΠΆΠ΅ сравнивали ΠΌΠ΅ΠΆΠ΄Ρƒ Π±ΠΎΠ»ΡŒΠ½Ρ‹ΠΌΠΈ Π₯Π›Π› с экспрСссиСй ΠΌΡƒΡ‚ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹Ρ… IGHV3-21- ΠΈ Π΄Ρ€ΡƒΠ³ΠΈΡ… IGHV-Π³Π΅Π½ΠΎΠ². ΠžΡ‚Π»ΠΈΡ‡ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΉ Ρ‡Π΅Ρ€Ρ‚ΠΎΠΉ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² с экспрСссиСй IGHV3-Π³Π΅Π½Π° Π±Ρ‹Π»Π° высокая Π²ΡΡ‚Ρ€Π΅Ρ‡Π°Π΅ΠΌΠΎΡΡ‚ΡŒ солидных ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅ΠΉ. Они Ρ€Π°Π·Π²ΠΈΠ»ΠΈΡΡŒ Π² 4 IGHV3-21-ΠΏΠΎΠ·ΠΈΡ‚ΠΈΠ²Π½Ρ‹Ρ… случаях (36,4%) ΠΈ Π² 10 случаях с экспрСссиСй Π΄Ρ€ΡƒΠ³ΠΈΡ… IGHV-Π³Π΅Π½ΠΎΠ² (5,6%, p = 0,0002). ΠšΡ€ΠΎΠΌΠ΅ Ρ‚ΠΎΠ³ΠΎ, Π² нСбольшой Π³Ρ€ΡƒΠΏΠΏΠ΅ Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… (6) с экспрСссиСй ΠΌΡƒΡ‚ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ IGHV3-21-Π³Π΅Π½Π° Ρƒ 3 Π²ΠΎΠ·Π½ΠΈΠΊΠ»ΠΈ солидныС ΠΎΠΏΡƒΡ…ΠΎΠ»ΠΈ ΠΈ 1 ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚Π° β€” синдром Π ΠΈΡ…Ρ‚Π΅Ρ€Π°. Π£ Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… с экспрСссиСй Π½Π΅ΠΌΡƒΡ‚ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ IGHV3-21-Π³Π΅Π½Π° опрСдСляли Ρ…ΡƒΠ΄ΡˆΠΈΠ΅ ΠΏΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»ΠΈ OS ΠΈ PFS ΠΏΠΎ савнСнию с ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚Π°ΠΌΠΈ с экспрСссиСй Π΄Ρ€ΡƒΠ³ΠΈΡ… Π½Π΅ΠΌΡƒΡ‚ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹Ρ… IGHV-Π³Π΅Π½ΠΎΠ². Π’Ρ‹Π²ΠΎΠ΄Ρ‹: прСдставлСнныС Π΄Π°Π½Π½Ρ‹Π΅ ΡΠΎΠ³Π»Π°ΡΡƒΡŽΡ‚ΡΡ с ΠΌΠ½Π΅Π½ΠΈΠ΅ΠΌ ΠΎ ΡΠ°ΠΌΠΎΡΡ‚ΠΎΡΡ‚Π΅Π»ΡŒΠ½ΠΎΠΌ Π½Π΅Π³Π°Ρ‚ΠΈΠ²Π½ΠΎΠΌ прогностичСском Π·Π½Π°Ρ‡Π΅Π½ΠΈΠΈ для Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… с Π₯Π›Π› экспрСссии IGHV3-21-Π³Π΅Π½Π° Π²Π½Π΅ зависимости ΠΎΡ‚ Π΅Π³ΠΎ ΠΌΡƒΡ‚Π°Ρ†ΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ статуса. IGHV3-21-экспрСссия Π±Ρ‹Π»Π° ассоциирована с Ρ€Π°Π·Π²ΠΈΡ‚ΠΈΠ΅ΠΌ Π²Ρ‚ΠΎΡ€ΠΈΡ‡Π½Ρ‹Ρ… солидных ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅ΠΉ. ВыявлСнный высокий ΡƒΡ€ΠΎΠ²Π΅Π½ΡŒ Π³ΠΎΠΌΠΎΠ»ΠΎΠ³ΠΈΠΈ Π² heteroHDR3s-ΠΏΠΎΠ΄Π³Ρ€ΡƒΠΏΠΏΠ΅ ΠΌΠΎΠΆΠ΅Ρ‚ ΡΠ²ΠΈΠ΄Π΅Ρ‚Π΅Π»ΡŒΡΡ‚Π²ΠΎΠ²Π°Ρ‚ΡŒ ΠΎ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΠΌ Π°Π½Ρ‚ΠΈΠ³Π΅Π½Π½ΠΎΠΌ влиянии Π² Π΄ΠΎΠΏΠΎΠ»Π½Π΅Π½ΠΈΠ΅ ΠΊ Π°Π½Ρ‚ΠΈΠ³Π΅Π½Π½ΠΎΠΌΡƒ влиянию Π² homHCDR ΡƒΠΏΠΏΠ΅, Ρ‡Ρ‚ΠΎ Π±Ρ‹Π»ΠΎ установлСно Ρ€Π°Π½Π΅

    Dynamic correlations in an ordered c(2Γ—\times2) lattice gas

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    We obtain the dynamic correlation function of two-dimensional lattice gas with nearest-neighbor repulsion in ordered c(2Γ—\times2) phase (antiferromagnetic ordering) under the condition of low concentration of structural defects. It is shown that displacements of defects of the ordered state are responsible for the particle number fluctuations in the probe area. The corresponding set of kinetic equations is derived and solved in linear approximation on the defect concentration. Three types of strongly correlated complex jumps are considered and their contribution to fluctuations is analysed. These are jumps of excess particles, vacancies and flip-flop jumps. The kinetic approach is more general than the one based on diffusion-like equations used in our previous papers. Thus, it becomes possible to adequately describe correlations of fluctuations at small times, where our previous theory fails to give correct results. Our new analytical results for fluctuations of particle number in the probe area agree well with those obtained by Monte Carlo simulations.Comment: 10 pages, 7 figure

    Non-resonant wave front reversal of spin waves used for microwave signal processing

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    It is demonstrated that non-resonant wave front reversal (WFR) of spin-wave pulses caused by pulsed parametric pumping can be effectively used for microwave signal processing. When the frequency band of signal amplification by pumping is narrower than the spectral width of the signal, the non-resonant WFR can be used for the analysis of the signal spectrum. In the opposite case the non-resonant WFR can be used for active (with amplification) filtering of the input signal.Comment: 4 pages, 3 figure
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