Aposematism

Author(s):  
Graeme D. Ruxton ◽  
William L. Allen ◽  
Thomas N. Sherratt ◽  
Michael P. Speed

Aposematism is the pairing of two kinds of defensive phenotype: an often repellent secondary defence that typically renders prey unprofitable to predators if they attack them and some evolved signal that indicates the presence of that defence. Aposematic signals often work to modify the behaviours of predators both before and during attacks. Warning coloration, for example, may increase wariness and hence improve the chances that a chemically defended prey is released unharmed after an attack. An aposematic signal may therefore first tend to reduce the probability that a predator commences attack (a primary defence) and then (as a component of secondary defence) reduce the probability that the prey is injured or killed during any subsequent attack. In this chapter we will consider both the primary and the secondary effects of aposematic signals on prey protection. We begin first by describing the common features of aposematic signals and attempting to show the wide use to which aposematic signalling is deployed across animals (and perhaps plants too). We then review the interesting evolutionary issues aposematic signals raise, including their initial evolution and their integration with sexual and other signals. We also discuss important ecological, co-evolutionary, and macroevolutionary consequences of aposematism.

2021 ◽  
Vol 5 (1) ◽  
pp. 43-51
Author(s):  
Jeong-A Jo

This study aims to examine the common features and differences in how the Chinese-character classifier ‘ ben 本’ is used in Chinese, Korean, and Japanese, and will explore the factors that have affected the categorization processes and patterns of the classifier ‘ ben 本.’ Consideration of the differences in the patterns of usage and categorization of the same Chinese classifier in different languages enables us to look into the perception of the world and the socio cultural differences inherent in each language, the differences in the perception of Chinese characters, and the relationship between classifiers.


Author(s):  
Kelly Cline ◽  
Holly Zullo ◽  
David A Huckaby

Abstract Common student errors and misconceptions can be addressed through the method of classroom voting, in which the instructor presents a multiple-choice question to the class, and after a few minutes for consideration and small-group discussion, each student votes on the correct answer, using a clicker or a phone. If a large number of students have voted for one particular incorrect answer, the instructor can recognize and address the issue. In order to identify multiple-choice questions that are especially effective at provoking common errors and misconceptions, we recorded the percentages of students voting for each option on each question used in 25 sections of integral calculus, taught by 7 instructors, at 4 institutions, over the course of 12 years, on a collection of 172 questions. We restricted our analysis to the 115 questions which were voted on by at least 5 different classes. We present the six questions that caused the largest percentages of students to vote for a particular incorrect answer, discuss how we used these questions in the classroom, and examine the common features of these questions. Further, we look for correlations between question characteristics and the mean percentage of students voting for common errors on these questions, and we find that questions based on general cases have higher percentages of students voting for common errors.


2014 ◽  
Vol 70 (8) ◽  
pp. 58-61
Author(s):  
Aina Mardia Akhmad Aznan ◽  
Zanariah Abdullah ◽  
Vannajan Sanghiran Lee ◽  
Edward R. T. Tiekink

The title compound, C12H11N3O2, is a second monoclinic polymorph (P21, withZ′ = 4) of the previously reported monoclinic (P21/c, withZ′ = 2) form [Akhmad Aznanet al.(2010).Acta Cryst.E66, o2400]. Four independent molecules comprise the asymmetric unit, which have the common features of asyndisposition of the pyridine N atom and the toluene ring, and an intramolecular amine–nitro N—H...O hydrogen bond. The differences between molecules relate to the dihedral angles between the rings which range from 2.92 (19) to 26.24 (19)°. The geometry-optimized structure [B3LYP level of theory and 6–311 g+(d,p) basis set] has the same features except that the entire molecule is planar. In the crystal, the three-dimensional architecture is consolidated by a combination of C—H...O, C—H...π, nitro-N—O...π and π–π interactions [inter-centroid distances = 3.649 (2)–3.916 (2) Å].


2021 ◽  
pp. 251385022098177
Author(s):  
Jeong-A Jo

This study aims to examine the common features and differences in how the Chinese-character classifier ‘ ben 本’ is used in Chinese, Korean, and Japanese, and will explore the factors that have affected the categorization processes and patterns of the classifier ‘ ben 本.’ Consideration of the differences in the patterns of usage and categorization of the same Chinese classifier in different languages enables us to look into the perception of the world and the socio cultural differences inherent in each language, the differences in the perception of Chinese characters, and the relationship between classifiers.


1952 ◽  
Vol 98 (413) ◽  
pp. 515-564 ◽  
Author(s):  
P. M. Yap

Few mental diseases have attracted the attention of medical men working in outlandish parts of the world more than Latah. This is due, not only to its intrinsic interest, showing as it regularly does the unusual symptoms of echolalia, echopraxia, and automatic obedience, but also to its remarkable geographical distribution. This illness was described by travellers to the Malay Archipelago in the latter part of the nineteenth century, but very similar reactions were later found to exist in other lands, known to the native peoples by other names. The term “Latah,” however, is the best known, and as the common features between these various reactions became apparent, it has been used as an inclusive name for them all. It is to-day employed with much the same connotation in the French, Dutch, Italian, and English literature, but the discussion of its nature betrays inadequate understanding, attempts at its nosological classification remain unsatisfactory, and speculations as to its aetology continue to be somewhat fanciful.


2013 ◽  
Vol 8 (1) ◽  
pp. 42-54
Author(s):  
Camille Carbonnaux

Since the 1990s, European judicial and normative institutions have paid particular attention to the competitive practices of public undertakings. Consequently, their regime is governed by a significant number of rules pursuing objectives appearing, a priori, contradictory. In fact, public undertakings may experience difficulties in their management. In this context, an approach of public competition law through the prism of fair competition can be very useful. Regarding the uniformity of its judgment, fair competition appears as an objective capable of coordinating rules and overcoming their contradictions. It thereby offers a global and coherent reading plan of all the legal translations of the European competitive order being of some practical importance. In illuminating the common features of the different legal aspects of competition, we can easily switch from one to the other. It therefore makes the European approach to competition more accessible and understandable. Furthermore, and most importantly, it leads to identifying legal opportunities and threats in a cross-disciplinary way. So, from a “Law & Management” perspective, it appears to be a precious tool for the management of public undertakings. Key words: European competition law, public undertakings, fair competition, “Management & law”.


Author(s):  
Vladimir Myslivyy ◽  
Angelina Mykyta

Problem setting. According to Art. 27 of the Constitution of Ukraine, everyone has an inalienable right to life, no one can be arbitrarily deprived of life, and the state, in turn, is obliged to protect human life. Protection of a person’s life, as a duty of the state, is manifested in the establishment of criminal liability, enshrined in Section II “Criminal offenses against life and health of a person” of the Criminal Code of Ukraine, who commit socially dangerous acts. whether there are criminal offenses and what punishments they should be committed. The distinction between crimes such as premeditated murder and negligent deprivation of another’s life is important, as criminal law theory still does not have sufficient information on this issue and does not have a complete list of features of the above crimes, but we tried to identify them in our article. Target of research. Deepening their knowledge on the caution of a person’s life due to inconsistency and drawing the line between possible offenses and conditional authority, clarifying the special characteristics of the perpetrator and the victim, outlining the essential features of the perpetrator and the victim, and researching the regulation of negligent proposal of a new version of the Criminal Code of Ukraine. Analysis of resent researches and publications. The theoretical basis for the study of the problem of murder through negligence are the works of legal scholars, in particular, M. Bazhanov, V. Borisov, S. Borodin, V. Glushkov, O. Gorokhovskaya, I. Zinchenko , V. Tyutyugin, O. Us, E. Kisilyuk, V. Kuts, M. Yefimov, S. Likhova, V. Stashis, V. Shablisty and others. Article’s main body. According to Art. 3 of the Constitution of Ukraine, man, his life and health, honor and dignity, inviolability and security are recognized in Ukraine as the highest social value. Given this constitutional provision, the legislator should pay special attention to the criminal law protection of human life and health as the most important public relations. So it is no coincidence that considering such encroachments as one of the most dangerous in the criminal law dimension, the legislator established criminal liability for their commission in Section II “Criminal offenses against life and health” of the Special Part of the Criminal Code of Ukraine. Due to the high public danger and the high prevalence of criminal offenses against human life and health, criminal law theory and law enforcement practice are under increasing scrutiny. Thus, the analysis of judicial practice in recent years shows that, for example, among all murders (Articles 117-119 of the Criminal Code of Ukraine) the number of persons convicted of deprivation of life due to negligence is about 15 percent annually. In our opinion, it is also advisable to analyze the concept of “murder” by comparing the common and distinctive features of the offenses referred to in Art. Art. 115 and 119 of the Criminal Code of Ukraine. According to scientific results, we can conclude that these offenses have many common features. It is possible to understand the common features and preconditions for the spread of these types of offenses. Conclusions and prospects for the development. A study of issues related to the criminal law analysis of murder through negligence and its difference from other types of murder, shows that these acts encroach on the identical object, which is “human life as a set of social relations.” Unfortunately, nowadays the dynamics of offenses committed in Art. Art. 115 and 119 is intensifying, so consideration of their delimitation and characterization of their features is very important. The study examines the main features of these types of crimes, as well as analyzes some provisions of national law and proposes some adjustments to them.


2021 ◽  
Vol 17 (1) ◽  
pp. 155-161
Author(s):  
Petar MARINOV

Abstract: Terrorism as a phenomenon has a complex structure in which ideological, social, religious, ethnic, psychological and other elements are intertwined. Modern terrorism is a complex and dynamic phenomenon that successfully adapts to the political and economic situation. Effective counteraction is beyond the power of any independent specialized institution or individual country. Understanding of the concept of terrorism is linked to the analysis of the common features of modern terrorism. Based on the content of ideology and motivation, as well as the specifics of the methods of action, there are differences between terrorism based on left and right ideologies, on nationalism and separatism, and with different religious motivations.  


2017 ◽  
Vol 46 (6) ◽  
pp. 1720-1729 ◽  
Author(s):  
Robert H. Crabtree

The common features of the title topics are compared and contrasted.


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