Primary Sequences of Protein-Like Copolymers: Levy Flight Type Long Range Correlations

We consider the statistical properties of primary sequences of two-letter HP copolymers (H for hydrophobic and P for polar) designed to have water soluble globular conformations with H monomers shielded from water inside the shell of P monomers. We show, both by computer simulations and by exact analytical calculation, that for large globules and flexible polymers such sequences exhibit long-range correlations which can be described by Levy-flight statistics.Comment: 4 pages, including 2 figures; several references added, some formulations improve

Church Rebels: From The History Of The Kazan Theological Seminary

The article deals with the issue of rebelliousness and protest activity of the Kazan Theological Seminary students in the late XIXth - early XXth centuries. For a long time, this topic was not touched upon in the context of church historical research. The reason for this was both the weakness of the church-historical science that was defeated in the Soviet period, and the specifics of the ideological paradigm that dominates in Russian Orthodox Church. The author, using the example of the Kazan Theological Seminary, describes the psychological atmosphere that reigned in the educational institution during 1892 - 1907, and tries to identify the distinctive features of the protest movement of seminarians, as well as to determine its forms, dynamics and direction. A particular importance is given to the problem of Christian morality crisis, which has embraced not only church youth, but also the hierarchy, and the leadership of the educational institution. The assessment is given concerning the influence on the seminary by the external revolutionary atmosphere and urban students. Among the most significant moments is the answer to the question: why those who were preparing for spiritual pastor career adopted the deviant forms of behavior actively, participated in murders and armed clashes with government troops. The work is based on original sources

Effects of cholesterol- or 7-ketocholesterol-containing liposomes on colony-forming ability of cultured cells

AbstractExperiments with cultured Chinese hamster cells showed that incubation of the cells with (phosphatidylcholine + cholesterol + 7-ketocholesterol)-containing liposomes (4:3:1 by weight) during two hours led to a decrease in the colony-forming ability of cells down to zero, while (phosphatidylcholine + cholesterol)-containing liposomes (1:1 by weight) reduce this parameter by 90%. Furthermore, the cholesterol-containing liposomes (without 7-ketocholesterol) induce a decrease in the number of the maximal-site colonies accompanied by the corresponding increase in the number of the middle-size colonies

Does educational aspect solve immigration problems in France?

International immigration with different reasons such as education and citizenship is by no means a new phenomenon in the modern global world. Nevertheless, intense immigration was sparked and had serious implications, especially for European countries like France after the year 2010, which marked the start of the revolution in Tunisia and the birth of such a phenomenon as the Arab spring. After the end of the colonial era and the loss of colonial possessions by France, the French state encountered the problem of the influx of an infinite number of Arab and African immigrants who had considerable ethnic, religious and cultural-historical characteristics. Exacerbating the problem was that the distinctions seemed essential even when compared with immigrants from other countries, for example, Eastern and Southern Europe. The latter had a relatively similar culture and mentality to the French, and what is the main – a common Christian value matrix. As such, they did not become a problem for the governmental policy of integrating into the cultural space of the host country. European immigrants easily sipped republican values, legal norms, traditions and customs, while making a break with their tradition of the past. However, the growth of immigrant population belonging to a different culture and religious heritage led to the fact that the strategy of the French state in this direction began to become ineffective. It is obvious that the old mechanisms of adaptation, such as obtaining French citizenship and education, do not solve emerging problems, but only generate new ones. As a result, a mutual rejection of the indigenous population and the newcomers intensified, stimulating a buildup of tension in society. As a result, this gradually turned into a matter of preserving national identity for the former, while into a matter of ensuring the survival of themselves and their children for the latter

On the human remains from the medieval fortification of Tver Kremlin (Russia)

We report the human bones, found during the excavations near the medieval fortification (12th – 13th cent.) of Tver Kremlin. Comparison with several medieval cities of Russia suggests that bones belong to the people, who defended the stronghold against Mongols in 1238

Statistical relationship between RMS and QP spectra of voltage measurements in the 9–150 kHz range

The main objective of this work is to obtain an empirical relationship between the root-mean-square and the quasi-peak spectra of voltage recordings in the electrical grid, based on a statistical analysis of a set of on-field measurements for the CISPR Band A (9–150 kHz). The lack of a relationship between the weighting root-mean-square and quasi-peak detectors implies the impossibility of calculating quasi-peak (QP) spectra from root-mean-square (RMS) measurements. It is of great interest that quasi-peak values can be estimated by simple calculations from RMS values, so that comparison to compatibility levels could be applied. This work defines an empirical relationship between the statistical variation of instantaneous RMS values over time, the maximum RMS value of these instantaneous values and the QP output. This relationship is described in the form of a simple equation that can be applied to RMS provided by the RM-A method, specifically developed for the CISPR Band A. A method for the fast assessment of QP values from simple RMS receivers is proposed as a potential application of the numerical RMS-QP relationship. Both the numerical RMS-QP relationship and its application as a simple and fast assessment method are evaluated with disturbances recorded in the low voltage grid.This project (18NRM05) has received funding from the EMPIR program co-financed by the Participating States and from the European Union's Horizon 2020 research and innovation program. This work was funded in part by the Basque Government under the grants IT1436–22 and PRE_2022_2_0074. This work was supported in part through grant PID2021–124706OB-I00 funded by MCIN/AEI/10.13039/501100011033 and by ERDF A way of making Europe

On the suitability of the CISPR 16 method for measuring conducted emissions in the 2–150kHz range in low voltage grids

The IEC 61000–2–2 standard defines the compatibility levels to evaluate the conducted disturbances in the low voltage grid for the 2-150 kHz range. For frequencies 9–150 kHz, they are defined in terms of quasi peak values measured according to CISPR 16–1–1 standard, but no clear guidance is given on how to apply this standard to grid measurements. The definition of the method in CISPR 16–1–1 accepts a wide range of different implementations, all of them fulfilling the compliance requirements. The reasons are that the standard does not propose a fixed implementation but a ‘black-box’ approach, and some of the proposed configuration values are non-normative and/or wide tolerances are allowed. In this context, some parameters have a pivotal role in the results provided by the method. The impact of variation of these parameters on the measurement results is addressed in this work. In particular, the accuracy requirements and the reproducibility issues of the standard are studied. For that purpose, a high number of different compliant implementations have been developed and the influence of different features of the CISPR 16–1–1 method on the results of these implementations is identified and analyzed. The results show that the wide tolerances allowed by the CISPR 16 specification impede the comparison of results provided by measuring receivers based on different implementations of the standard. Results of the study also show that reproducibility issues for the same input signal may be relevant and generate inconsistences. Moreover, a fixed specific configuration does not ensure that uncertainty issues are solved, as the technical approach used in the implementation of the damped meter has a strong influence on the outputs. An unambiguous guidance of digital implementation of the standard could fix these issues

2018-2019 Master Class - Margaret McDonald (Collaborative Piano)

https://spiral.lynn.edu/conservatory_masterclasses/1175/thumbnail.jp