On the microscopic origin of the magneto-electronic phase separation in Sr doped LaCoO3

The nanoscopic magneto-electronic phase separation in doped La1-xSrxCoO3 perovskites was studied with local probes. The phase separation is directly observed by M\"ossbauer spectroscopy in the studied doping range of 0.05 <= x <= 0.25 both at room-temperature as well as in the low temperature magnetic phase. Extended with current synchrotron based X-ray spectroscopies, these data help to characterize the volume as well as the local electric and magnetic properties of the distinct phases. A simple model based on a random distribution of the doping Sr ions describes well both the evolution of the separated phases as well as the variation of the Co spin state. The experiments suggest that Sr doping initiates small droplets and a high degree of doping driven cobalt spin-state transition, while the Sr-free second phase vanishes rapidly with increasing Sr content

Magyarország Zenetörténete sorozat: 18. és 20. századi kötetek = Hungarian Music history: 3. and 5. vol.

A pályázat a Magyarország Zenetörténete III. kötetének kutatómunkáját segítette a) kötetfejezetek ill. első fogalmazványok b) a témához kapcsolódó publikációk c) a kötetfejezetek hátterét biztosító adatbázisok ill. 18. századi művek partitúráinak létrehozása által. a) Kötetfejezetek készültek a katolikus templomok zenei életéről, a zenészek foglalkoztatásának társadalmi körülményeiről, jövedelemviszonyairól a 18. századi Magyarországon b) Farkas Z., Sas Á. és Szacsvai K. tanulmányokat publikáltak és nemzetközi konferencián előadásokat tartottak. c) hat 18. ill. kora 19. századi kompozíció (Werner, Zimmermann, Novotni, Lickl, Zmeskall) partitúrája készült el (összesen ca. 610 partitúraoldalnyi számítógépes kottagrafika). A 20. századi kutatások eredményei a zeneműkiadás- és koncerttörténeti alapkutatások, tíz-illetve húszezres nagyságrendű adatbázisaiban (1.,3.) és a zeneszerzői életműkutatások összefoglaló publikációiban (1-7 kismonográfia, magyar és angol nyelven a Magyar zeneszerzők sorozatban,) jelentkeztek. 1. Lezárult a több éves kutatás: A magyar zeneműkiadás története a két világháború között témakörben. 2. A zeneszerzői életművek feldolgozása 10 szerzői alapkutatással gyarapodott. Eredményként 7 kismonográfia jelent meg. 3. A befejezés stádiumába jutott a Budapesti Hangversenyek Adattára (1900-1945) adatbázisa, 15.000 koncertet rögzít: a szerzők, a zeneművek, az előadók és a helyszínek szerint. | One of the principal aims of the project was to promote research for the production of the 3rd volume of the series History of Music in Hungary (1686-1820) a) producing chapters and drafts b) publishing articles and papers c) producing databases and scores which can form a basis for the analitical chapters. a) Chapters have been finished on Music Life of Roman Catholic Churches in 18th Century Hungary b) Z. Farkas, A. Sas, K. Szacsvai have published articles and read papers in international conferences c) Scores of 5 compositions by Werner, Zimmermann, Novotni, Lickl, Zmeskall were compiled from original manuscripts. The results of research into 20th-century music, basic research into music publishing and the history of concerts have appeared in ten to twenty thousand-character-long databases (1, 3) and in comprehensive publications about the composers' lifework (7 monographs in the series Magyar zeneszerzők) 1. The research project entitled The history of Hungarian music publishing between the two world wars and lasting several years has been concluded. 2. To the elaboration of the composers' oeuvres ten basic research results have been added and seven short monographs have been published. 3. The database of the List of Budapest Concerts (1900-1945) has reached the stage of conclusion, recording about 15,000 concerts according to composers, works, performers, and sites

Comparison of Decontamination Standards

The quality of materials used in nuclear-related facilities is critical, especially the ease of decontamination of different paints and coatings. Standards describe different testing methods for classification. Nevertheless, compliance with these standards cannot be carried out negligibly from a safety point of view. In this study, a withdrawn Hungarian (MSZ-05 22.7662-83), an international ISO (ISO 8690:1988), and Russian (GOST 25146- 82) decontamination standard were compared. Four different paints were tested as part of this survey. The ease of decontamination varied mainly from poor to fair levels in the case of the Hungarian standard, while the ISO standard exhibited very good level. In the case of the Russian standard, only a theoretical comparison was carried out. Based on the results, it was found that a special epoxy-based coating can be recommended for isotope laboratories due to being the best material from an ease of decontamination point of view. From comparison of the standards considered here, it was found that the application of ISO standard is significantly faster and simpler than the withdrawn Hungarian standard. However, in the case of the Hungarian standard the data described the ease of decontamination in more details. The use of water or some other cleaning agents can be effective to remove 137 Cs and 60 Co contamination right after early identification. Isotope 137 Cs and 60 Co contamination of a surface can be cleaned quickly and effectively using distilled water for the 137 Cs isotope removal from the surfaces being several times easier than that of 60 Co

Increased frequency of temporal acoustic window failure in rheumatoid arthritis: a manifestation of altered bone metabolism?

K

Assessment of intracranial vessels in association with carotid atherosclerosis and brain vascular lesions in rheumatoid arthritis

BACKGROUND: Stroke has been associated with rheumatoid arthritis (RA). We assessed patients with RA and healthy control subjects by transcranial Doppler (TCD), carotid ultrasonography and brain magnetic resonance imaging (MRI). METHODS: Altogether, 41 female patients with RA undergoing methotrexate (MTX) or biologic treatment and 60 age-matched control subjects underwent TCD assessment of the middle cerebral artery (MCA) and basilar artery. Pulsatility index (PI), resistivity (resistance) index (RI) and circulatory reserve capacity (CRC) were determined at rest (r) and after apnoea (a) and hyperventilation (h). The presence of carotid plaques and carotid intima-media thickness (cIMT) were also determined. Intracerebral vascular lesions were investigated by brain MRI. RESULTS: MCA PI and RI values at rest and after apnoea were significantly increased in the total and MTX-treated RA populations vs control subjects. MCA CRC was also impaired, and basilar artery PI was higher in RA. More patients with RA had carotid plaques and increased cIMT. Linear regression analysis revealed that left PI(r) and RI(r) correlated with disease duration and that left PI(r), RI(r), PI(a), PI(h) and basilar PI correlated with disease activity. Right CRC inversely correlated with 28-joint Disease Activity Score. Disease activity was an independent determinant of left PI(a) and right CRC. Compared with long-term MTX treatment alone, the use of biologics in combination with MTX was associated with less impaired cerebral circulation. Impaired cerebral circulation was also associated with measures of carotid atherosclerosis. CONCLUSIONS: To our knowledge, this is the first study to show increased distal MCA and basilar artery occlusion in RA as determined by TCD. Patients with RA also had CRC defects. We also confirmed increased carotid plaque formation and increased cIMT. Biologics may beneficially influence some parameters in the intracranial vessels

Searching for the double gamma-decay of the X particle

The e−e+ decay of the candidate new particle X(17) has already been confirmed by previous experiments. However, theoretical models give different predictions for the spin and the parity of this particle. The double gamma-decay process could be an appropriate probe to shed light on such properties. Thus, for the first time, we searched for the gamma-gamma decay of X(17) created in nuclear transitions. In this paper, we report preliminary results of two experiments on the Jπ= 0− -> 0+ transition in 4He