GECCO 2021

2021 ◽  
Vol 14 (3) ◽  
pp. 1-5
Author(s):  
Francisco Chicano

The 2021 Genetic and Evolutionary Computation Conference (GECCO 2021) was planned to be held in hybrid mode in Lille, France, on July 10th-14th, 2021. After a careful analysis of the evolution of the pandemic and the results of a poll to frequent attendees on the preferred form of attendance, a decision was made in mid-December to run GECCO'21 in online/virtual mode only. This report provides statistics about submissions and authorship, and some comments about the evolution and growth of GECCO.

2021 ◽  
Vol 14 (3) ◽  
pp. 1-5
Author(s):  
Francisco Chicano

The 2021 Genetic and Evolutionary Computation Conference (GECCO 2021) was planned to be held in hybrid mode in Lille, France, on July 10th-14th, 2021. After a careful analysis of the evolution of the pandemic and the results of a poll to frequent attendees on the preferred form of attendance, a decision was made in mid-December to run GECCO'21 in online/virtual mode only. This report provides statistics about submissions and authorship, and some comments about the evolution and growth of GECCO.


Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 706
Author(s):  
Irene Rubia-Rodríguez ◽  
Antonio Santana-Otero ◽  
Simo Spassov ◽  
Etelka Tombácz ◽  
Christer Johansson ◽  
...  

The scientific community has made great efforts in advancing magnetic hyperthermia for the last two decades after going through a sizeable research lapse from its establishment. All the progress made in various topics ranging from nanoparticle synthesis to biocompatibilization and in vivo testing have been seeking to push the forefront towards some new clinical trials. As many, they did not go at the expected pace. Today, fruitful international cooperation and the wisdom gain after a careful analysis of the lessons learned from seminal clinical trials allow us to have a future with better guarantees for a more definitive takeoff of this genuine nanotherapy against cancer. Deliberately giving prominence to a number of critical aspects, this opinion review offers a blend of state-of-the-art hints and glimpses into the future of the therapy, considering the expected evolution of science and technology behind magnetic hyperthermia.


Author(s):  
Dianna T. Kenny

Performing musicians face a number of physical, social, and psychological challenges that must be mastered if their musical career is to be both rewarding and sustainable. However, musicians are at high risk of physical and psychological strain and injury in the execution of their art. Physical and psychological stressors exert reciprocal and synergistic effects on the musician, and careful analysis of the intrinsic characteristics of the performer and the extrinsic demands on the musician must be made in order to develop appropriate interventions. This article provides an overview of the risks and challenges facing musicians, with the aim of developing awareness and understanding of how to prevent and manage these challenges. It is divided into two sections: physical challenges and psychological challenges, focusing on music-performance anxiety. Each section outlines the key issues and then provides an overview of evidence-based treatment.


2021 ◽  
Vol 20 ◽  
pp. 160940692110029
Author(s):  
J. Kessa Roberts ◽  
Alexandra E. Pavlakis ◽  
Meredith P. Richards

COVID-19 has necessitated innovation in many parts of our lives and qualitative research is no exception, as in-person qualitative data collection has been complicated by the constraints of social distancing and the prioritization of participants’ and researchers’ safety. Consequently, virtual methods have quickly gained traction. However, there is little research that comprehensively explores the range of practical, rigorous, and ethical considerations that arise when designing and engaging in virtual qualitative research. Addressing this gap, we examine the process of designing and conducting a virtual qualitative study, using specific examples from our case study of student homelessness in Houston, Texas that drew from semi-structured interviews and the analysis of over 50 documents. Garnering insights from Salmons’ Qualitative e-Research Framework (2016), and benefiting from 22 technical memos that documented our process, we profile the challenges we faced—and choices we made in response—as we designed and conducted our study. Our findings suggest that in practice, engaging in virtual qualitative research, particularly in the era of COVID-19, is a purposive exercise that requires thoughtful, careful analysis around a number of methodological challenges as well as ethical and equity-oriented questions. Our exploratory work has timely implications for qualitative scholars in the current COVID-19 context, but also showcases the potential to conduct high-quality, rigorous, ethical qualitative research in a virtual format, offering a glimmer of hope for more equitable qualitative research in contexts of crisis and beyond.


2021 ◽  
Vol 12 ◽  
Author(s):  
Alessandro N. Vargas ◽  
Alexander Maier ◽  
Marcos B. R. Vallim ◽  
Juan M. Banda ◽  
Victor M. Preciado

The COVID-19 pandemic hit hard society, strongly affecting the emotions of the people and wellbeing. It is difficult to measure how the pandemic has affected the sentiment of the people, not to mention how people responded to the dramatic events that took place during the pandemic. This study contributes to this discussion by showing that the negative perception of the people of the COVID-19 pandemic is dropping. By negative perception, we mean the number of negative words the users of Twitter, a social media platform, employ in their online posts. Seen as aggregate, Twitter users are using less and less negative words as the pandemic evolves. The conclusion that the negative perception is dropping comes from a careful analysis we made in the contents of the COVID-19 Twitter chatter dataset, a comprehensive database accounting for more than 1 billion posts generated during the pandemic. We explore why the negativity of the people decreases, making connections with psychological traits such as psychophysical numbing, reappraisal, suppression, and resilience. In particular, we show that the negative perception decreased intensively when the vaccination campaign started in the USA, Canada, and the UK and has remained to decrease steadily since then. This finding led us to conclude that vaccination plays a key role in dropping the negativity of the people, thus promoting their psychological wellbeing.


Epohi ◽  
2021 ◽  
Vol 29 (1) ◽  
Author(s):  
Petar Goliyski ◽  

Stepanos Taronetsi (Steven of Taron), better known as Asoghik, completed his Universal History in 1004. This work made him the most prominent Armenian historian of the 11th century. It is known in Bulgaria because of Asoghik’s information about the Armenian origin of the Bulgarian Tsar Samuel. However, the following passage, related to Bulgarian history, has gone unnoticed by scholars: “Justianos, 37 years... He was overthrown by his army for insignificant reasons and fled to Khakan, the king of the Khazars, married his daughter and took the city of Ihrit as an inheritance, and with the help of the Khazar troops returned to reign in Constantinople and established himself on the throne of his kingdom. Then he built the great and famous Hagia Sophia Church.” Ihrit is the city of Ohrid in the present-day Republic of North Macedonia. A careful analysis of the passage shows that the episode of Justinian II’s reascension (685–695; 705–711) to the Byzantine throne with the help of the Bulgarians (the Khazars at Asoghik) was automatically attached to the reign of Justinian I (527–565) by the Armenian historian. Or rather, this insertion was already made in the earlier source used by Asoghik. The fact that Asoghik mentions Ohrid during the reign of Justinian I falls within the context of the propaganda efforts of the Ohrid Archbishopric (Archbishopric of Bulgaria) to derive its origins directly from the famous Archbishopric of Justiniana Prima, founded in 535 by Emperor Justinian I. The aim was to create a sacred aureola around the Ohrid Archbishopric and subsequently to neutralize the Constantinople Patriarchate’s attempts to subdue it and even to put an end to its existence. However, Asoghik’s account preceded the Ohrid Archbishopric’s efforts by a century. Nevertheless, the mention of Ohrid in Asoghik’s work is not a late interpolation of a scribe, but it fits perfectly into a statement of the Byzantine historian Nicephorus Gregoras, suggesting that the first steps in presenting Ohrid as an ancient ecclesiastical center, identical to Justiniana Prima, were made around 972, shortly after the seat of the Bulgarian Patriarchate had been transferred from Moesia to Macedonia.


1970 ◽  
Vol 22 (1) ◽  
pp. 22-35 ◽  
Author(s):  
E. Biondi ◽  
L. Divieti ◽  
G. Guardabassi

The problem of counting partial subgraphs (or patterns, for short) in a given graph has been approached by several mathematicians from various points of view (see, e.g., [1; 3; 5; 13-15; 17-23; 26-29]; applications may also be found in [2; 8; 9; 16]). Specific algorithms have been presented and almost all of them are essentially based upon a careful analysis of the graph under consideration. In these cases, we say that a direct approach has been followed. Unfortunately, when large graphs are considered, all direct counting methods require rather cumbersome computations. For this reason, during the last few years many efforts have been made in finding suitable indirect counting methods. First, Biondi [5] faced the problem of counting cycles in non-oriented graphs by inspection of the complementary graph. More recently, a number of papers [1; 3; 21; 22; 28] have been concerned with counting trees in classes of non-oriented graphs having complementary graphs with special structural properties. However, to the best of our knowledge, no general indirect counting method is available in the literature.


2021 ◽  
pp. 205-217
Author(s):  
Vladimir V. Tishin ◽  

In July 2019, I received information about the discovery of an estampage of an inscription made in Old Turkic Runic Writing in the fond “Documents. Photo documents” of the Kyakhta Museum of Local Lore of Academician V. A. Obruchev. Judging on several obtained photographs, it has been tentatively identified as To?uquq/Tonyuquq Inscription. It is an epigraphic text on a monument of the period of the so-called Second Eastern Turkic Qaghanate, great nomadic empire that existed in Inner Asia in 682–744 A. D. The monument was discovered in 1897 and has since been repeatedly studied, copied and translated. I could find no information on which of the copies could have been found in Kyakhta. The opportunity to get acquainted with the find in situ came only in December 2019, and it became apparent that this copy has been previously unknown to the academic community. The subsequent work followed two directions. Firstly, it was necessary to establish the origin of the copy, its authorship, dating, and circumstances surrounding its appearance in the collections of the Kyakhta Museum of Local Lore. Secondly, it was necessary to work directly with the discovered copy for the purpose of its comparison with others known copies and, if possible, of identifying differences in copying any of the text fragments. As a result, it has been understood that the copy was made by Chinese scientists and then somehow transferred to St. Petersburg, wherefrom W. Kotwicz sent it to Kyakhta in April 1913 as a supplement to W. Radloff’s “Atlas of Antiquities of Mongolia.” Incidentally, it has been discovered that at least one of the similar copies of the To?uquq/Tonyuquq Inscription, stored today in the fonds of the Institute of Oriental Manuscripts (IOM) of the Russian Academy of Sciences, must be contemporary to the one found in Kyakhta. A careful analysis of the copy itself — eight estampages corresponding to the eight sides of the To?uquq/Tonyuquq Inscription (four sides on two stelae) — has allowed us to conclude that individual fragments differ from the corresponding ones on earliest copies made in 1898 in the course of the Orkhon expedition work, as well as from those made in 1909 in the field research of G. J. Ramstedt. We have also made measurements and description of these estampages.


1873 ◽  
Vol 19 (87) ◽  
pp. 361-374 ◽  
Author(s):  
W. W. Ireland

I give the details of five cases of Idiocy where the observations were completed by an examination after death. The greatest advantage of such studies as can be made in an Institution for the Training of Idiots is the careful analysis of the mental symptoms, and for this I am much indebted to the teachers for their patient attention and intelligent remarks. The absence of microscopical observations in all the pathological descriptions, save one, is a source of regret to me, though I have been so fortunate as to obtain the report of so competent an observer as Dr. J. Batty Tuke in the case of K. I. The object kept in view in reporting these cases is to throw as much light as possible on the relation of the mental deficiency to the pathological lesions. It is not, therefore, to be expected that they should be reported in the same form as clinical cases published with the intention of illustrating the treatment of ordinary diseases, or the action of new remedies. It is true that the existence of idiocy often modifies the symptoms of ordinary disease, and requires a corresponding modification in treatment; but it would unduly complicate our reports, and probably lengthen the paper to a tedious degree, were commentaries of this kind introduced.


1969 ◽  
Vol 41 (1) ◽  
pp. 227-250 ◽  
Author(s):  
Lewis G. Tilney ◽  
John R. Gibbins

To experimentally test the suggestion made in the preceding paper that the microtubules are involved in cell shape development during the formation and differentiation of the primary mesenchyme, we applied to the embryos two types of agents which affect cytoplasmic microtubules: (a) colchicine and hydrostatic pressure, which cause the microtubules to disassemble, and (b) D2O, which tends to stabilize them. When the first type of agent is applied to sea urchin gastrulae, the development of the primary mesenchyme ceases, the microtubules disappear, and the cells tend to spherulate. With D2O development also ceases, but the tubules appear "frozen," and the cell asymmetries persist unaltered. These agents appear to block development by primarily interfering with the sequential disassembly and/or reassembly of microtubules into new patterns. The microtubules, therefore, appear to be influential in the development of cell form. On the other hand through a careful analysis of the action of these agents and others on both intra- and extracellular factors, we concluded that the microtubules do rather little for the maintenance of cell shape in differentiated tissues.


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