Sexual Selection, Mate Choice, and Competition for Mates

2021 ◽  
pp. 1-20
Author(s):  
Ingo Schlupp
Keyword(s):  
Sexual Selection ◽  
Natural Selection ◽  
Subject Matter ◽  
Charles Darwin ◽  
Future Research ◽  
Original Formulation ◽  
Survival And Reproduction ◽  
The Subject ◽  
The Relationship

Well over a century ago Charles Darwin redefined biology and introduced the theory of natural selection. One of the problems he encountered was the existence of traits, mainly in males, that seemed to defy the principles of natural selection: they did not aid its bearers in survival and were often outright detrimental. Darwin solved this conundrum by introducing sexual selection. Unlike natural selection where all individuals compete with each other for survival and reproduction, in sexual selection individuals within each sex compete with each other for reproduction. In the original formulation of the principle, Darwin recognized two mechanisms for this. Males would compete with each other for access to females, and females would choose mating partners of their preference. In this opening chapter I want to introduce the topics to be covered in the book, define some basic terms that we will need to understand the subject matter, and define the questions to be asked. My aim for this book is to summarize our growing, yet still comparatively limited empirical knowledge and theory, and to provide suggestions for future research. What interests me most is the relationship between the four forms of sexual selection and their consequences.

Democracy and Civic Culture

2009 ◽  
Author(s):  
Filippo Sabetti
Keyword(s):  
Political Culture ◽  
Subject Matter ◽  
The State ◽  
Civic Culture ◽  
Future Research ◽  
The Subject ◽  
State Of Research ◽  
The Relationship ◽  
The Way

This article attempts to take stock of the state of research on democracy and culture by providing answers to several sets of questions. It seeks to improve the understanding of the relationship between culture and action, and between political culture and democratic outcomes. The article begins by exploring the way the literature has dealt with the possible meaning of culture and political culture and their relationship to action. It also suggests why there has been little contribution to democracy derived from political culture research, and identifies how the efforts to rethink how and why the subject matter is approached in certain ways led many analysts to break out of established epistemological demarcations. This eventually led to the reinvigorated tools of investigation and research on democracy and civic culture. The article concludes with a discussion on the implications of improved tools of investigation for future research.

scholarly journals Charles Darwin, sexual selection and the evolution of other-regarding ethics

BJHS Themes ◽  
2021 ◽  
pp. 1-21
Author(s):  
Piers J. Hale
Keyword(s):  
Sexual Selection ◽  
Natural Selection ◽  
Charles Darwin ◽  
Future Research ◽  
Woman Question ◽  
Self Interest ◽  
Acquired Characters ◽  
Other Regarding ◽  
Descent Of Man ◽  
Selection Of

Abstract Although many read Charles Darwin's Origin of Species as an endorsement, rather than merely a description, of individualism and competition, in Descent of Man (1871) Darwin intended to show that natural selection could account for the most noble aspects of human morality and conscience. He did so in response to Alfred Russel Wallace's 1869 statement to the contrary. In doing so, Darwin appealed to the natural selection of groups rather than individuals, and to the maternal, parental and filial instincts, as the origin of truly other-regarding moral sentiments. Further, the inheritance of acquired characters and sexual selection had important implications for Darwin's understanding of how other-regarding ethics might prevail in an evolutionary framework that seemed to reward self-interest. In a short addendum to this essay I highlight just three of a number of Darwin's contemporaries who were impressed by this aspect of his work: the science popularizer Arabella Buckley, the Scottish Presbyterian scholar Henry Drummond and the anarchist geographer and naturalist Peter Kropotkin. In closing, I point to an extensive network of others who framed their concerns about both the ‘labour question’ and the ‘woman question’ in evolutionary terms, as a fruitful area for future research in this direction.

Sexual Selection

2001 ◽  
Author(s):  
Udo M. Savalli
Keyword(s):  
Sexual Selection ◽  
Charles Darwin ◽  
Future Research ◽  
Origin Of Species ◽  
Female Preferences ◽  
Evolutionary Changes ◽  
Males And Females ◽  
Worker Castes ◽  
Descent Of Man

When Charles Darwin wrote On the Origin of Species (1859), he issued a challenge to potential critics: “If it could be proved that any part of the structure of any one species had been formed for the exclusive good of another species, it would annihilate my theory, for such could not be produced through natural selection”. Darwin went even further by identifying several traits that seemed especially problematical: the sterile worker castes of social insects and extravagant ornaments that appear to benefit potential predators more than their bearers. It is this latter problem and Darwin’s solution to it—sexual selection—that are the focus of this chapter. I begin by providing a very brief historical overview of sexual selection, focusing on the initial controversies and its resurgence in the 1970s. I then provide an overview of the conditions that lead to sexual selection and the kinds of traits that are favored by it. Sexual selection usually involves evolutionary changes in both males and females. Thus, I first address the evolution of extravagant male traits (it is typically males that exhibit such traits). Since female choice is one of the mechanisms that can lead to the evolution of extravagant male traits, I also address the evolution of female preferences. Finally, I will identify those areas of the field that are the most controversial, unresolved, and promising for future research. This review is, of necessity, brief and selective. I have tried to cite recent reviews rather than the extensive primary literature to provide an easy entry point into the literature. Readers wishing for more detailed treatment would do well by starting with Andersson’s (1994) excellent book. Darwin introduced the concept of sexual selection in On the Origin of Species (1859) and greatly elaborated the idea in The Descent of Man and Selection in Relation to Sex (1871). Darwin defined sexual selection as depending “not on a struggle for existence, but on a struggle between males for possession of the females”.

Introduction

2018 ◽  
Author(s):  
Gerhard Preyer
Keyword(s):  
Subject Matter ◽  
Diverse Range ◽  
The World ◽  
The Subject ◽  
The Relationship

The study of meaning in language embraces a diverse range of problems and methods. Philosophers think through the relationship between language and the world; linguists document speakers’ knowledge of meaning; psychologists investigate the mechanisms of understanding and production. Up through the early 2000s, these investigations were generally compartmentalized: indeed, researchers often regarded both the subject matter and the methods of other disciplines with skepticism. Since then, however, there has been a sea change in the field, enabling researchers increasingly to synthesize the perspectives of philosophy, linguistics, and psychology and to energize all the fields with rich new intellectual perspectives that facilitate meaningful interchange. One illustration of the trend is the publication of Lepore and Stone’s ...

The Trade Mark, Other Product Designations, and Goodwill

2017 ◽  
Author(s):  
Justine Pila
Keyword(s):  
Subject Matter ◽  
Common Law ◽  
Trade Mark ◽  
Geographical Indication ◽  
Passing Off ◽  
Rights Protection ◽  
Essential Properties ◽  
The Subject ◽  
The Common ◽  
The Relationship

This chapter considers the meaning of the terms that appropriately denote the subject matter protectable by registered trade mark and allied rights, including the common law action of passing off. Drawing on the earlier analyses of the objects protectable by patent and copyright, it defines the trade mark, designation of origin, and geographical indication in their current European and UK conception as hybrid inventions/works in the form of purpose-limited expressive objects. It also considers the relationship between the different requirements for trade mark and allied rights protection, and related principles of entitlement. In its conclusion, the legal understandings of trade mark and allied rights subject matter are presented as answers to the questions identified in Chapter 3 concerning the categories and essential properties of the subject matter in question, their method of individuation, and the relationship between and method of establishing their and their tokens’ existence.

The Subject Matter of Intellectual Property

2017 ◽  
Author(s):  
Justine Pila
Keyword(s):  
Intellectual Property ◽  
Subject Matter ◽  
Final Stage ◽  
Theoretical Framework ◽  
Trade Mark ◽  
Second Stage ◽  
Essential Properties ◽  
The Subject ◽  
Three Stages ◽  
The Relationship

This book offers a study of the subject matter protected by each of the main intellectual property (IP) regimes. With a focus on European and UK law particularly, it considers the meaning of the terms used to denote the objects to which IP rights attach, such as ‘invention’, ‘authorial work’, ‘trade mark’, and ‘design’, with reference to the practice of legal officials and the nature of those objects specifically. To that end it proceeds in three stages. At the first stage, in Chapter 2, the nature, aims, and values of IP rights and systems are considered. As historically and currently conceived, IP rights are limited (and generally transferable) exclusionary rights that attach to certain intellectual creations, broadly conceived, and that serve a range of instrumentalist and deontological ends. At the second stage, in Chapter 3, a theoretical framework for thinking about IP subject matter is proposed with the assistance of certain devices from philosophy. That framework supports a paradigmatic conception of the objects protected by IP rights as artifact types distinguished by their properties and categorized accordingly. From this framework, four questions are derived concerning: the nature of the (categories of) subject matter denoted by the terms ‘invention’, ‘authorial work’, ‘trade mark’, ‘design’ etc, including their essential properties; the means by which each subject matter is individuated within the relevant IP regime; the relationship between each subject matter and its concrete instances; and the manner in which the existence of a subject matter and its concrete instances is known. That leaves the book’s final stage, in Chapters 3 to 7. Here legal officials’ use of the terms above, and understanding of the objects that they denote, are studied, and the results presented as answers to the four questions identified previously.

scholarly journals Tocopherols and Tocotrienols—Bioactive Dietary Compounds; What Is Certain, What Is Doubt?

2021 ◽  
Vol 22 (12) ◽  
pp. 6222
Author(s):  
Kacper Szewczyk ◽  
Aleksandra Chojnacka ◽  
Magdalena Górnicka
Keyword(s):  
Vitamin E ◽  
Metabolic Disorders ◽  
Tissue Concentration ◽  
Biological Properties ◽  
Biological Role ◽  
Future Research ◽  
The Past ◽  
The Subject ◽  
The Relationship

Tocopherols and tocotrienols are natural compounds of plant origin, available in the nature. They are supplied in various amounts in a diet, mainly from vegetable oils, some oilseeds, and nuts. The main forms in the diet are α- and γ-tocopherol, due to the highest content in food products. Nevertheless, α-tocopherol is the main form of vitamin E with the highest tissue concentration. The α- forms of both tocopherols and tocotrienols are considered as the most metabolically active. Currently, research results indicate also a greater antioxidant potential of tocotrienols than tocopherols. Moreover, the biological role of vitamin E metabolites have received increasing interest. The aim of this review is to update the knowledge of tocopherol and tocotrienol bioactivity, with a particular focus on their bioavailability, distribution, and metabolism determinants in humans. Almost one hundred years after the start of research on α-tocopherol, its biological properties are still under investigation. For several decades, researchers’ interest in the biological importance of other forms of vitamin E has also been growing. Some of the functions, for instance the antioxidant functions of α- and γ-tocopherols, have been confirmed in humans, while others, such as the relationship with metabolic disorders, are still under investigation. Some studies, which analyzed the biological role and mechanisms of tocopherols and tocotrienols over the past few years described new and even unexpected cellular and molecular properties that will be the subject of future research.

Theory of Interdiffusion in Solids

2006 ◽  
Vol 258-260 ◽  
pp. 52-58
Author(s):  
Y.C. Chen
Keyword(s):  
Subject Matter ◽  
Phase Growth ◽  
Atomic Flux ◽  
The Subject ◽  
Induced Stresses ◽  
Volume Unit ◽  
The Relationship

Traditional theories of interdiffusion in solids based on Fick’s first and second laws and Darken’s equations can not describe the relationship between the diffusion fluxes and the diffusion-induced stresses, because the subject matter of the traditional theories is the diffusing atom or atomic flux, not the volume unit within the interdiffusion field. For this reason, it is suggested that the concept of flow point in the interdiffusion field should be constructed to describe the diffusion-induced stresses and the phase growth.

scholarly journals Cyber Attacks, Information Attacks, and Postmodern Warfare

2017 ◽  
Vol 10 (1) ◽  
pp. 63-89 ◽  
Author(s):  
Jozef Valuch ◽  
Tomáš Gábriš ◽  
Ondrej Hamuľák
Keyword(s):  
International Law ◽  
Subject Matter ◽  
Case Law ◽  
Cyber Attacks ◽  
Armed Conflicts ◽  
Information Warfare ◽  
Law Of War ◽  
Legal Rules ◽  
The Subject ◽  
The Relationship

Abstract The aim of this paper is to evaluate and differentiate between the phenomena of cyberwarfare and information warfare, as manifestations of what we perceive as postmodern warfare. We describe and analyse the current examples of the use the postmodern warfare and the reactions of states and international bodies to these phenomena. The subject matter of this paper is the relationship between new types of postmodern conflicts and the law of armed conflicts (law of war). Based on ICJ case law, it is clear that under current legal rules of international law of war, cyber attacks as well as information attacks (often performed in the cyberspace as well) can only be perceived as “war” if executed in addition to classical kinetic warfare, which is often not the case. In most cases perceived “only” as a non-linear warfare (postmodern conflict), this practice nevertheless must be condemned as conduct contrary to the principles of international law and (possibly) a crime under national laws, unless this type of conduct will be recognized by the international community as a “war” proper, in its new, postmodern sense.

A flight of no substance, collapsing space in its wake

2021 ◽  
Vol 10 (1) ◽  
pp. 43-60
Author(s):  
Riet Eeckhout
Keyword(s):  
Subject Matter ◽  
Close Encounter ◽  
The Subject ◽  
The Relationship

This article looks at ways in which architecture can be articulated as a sensation within the drawing. The subject of occupying drawings is considered here as a result of entering the drawing, an action John Hejduk describes ‘as a flight of no substance’, collapsing space between the observer and the artefact in its wake. Entering the drawing and subsequently occupying the drawing is considered here as a phenomenon that enables experiential and observational proximity to an artefact and its embedded subject. The collapsing mechanism enforces thinking about the observational intent of this type of entering, its relationship with immediacy and with aspects of the non-representational. Furthermore, the act of entering the drawing is viewed as a technique for mediating and bringing forth subject matter in the drawing. This technique of augmented observation and mediation is in service of the quest for subject presence in the drawing, as opposed to subject representation in the drawing – allowing a residence in close encounter by the maker during production and later by the observer of the resulting artefact. The article is accompanied by a set of drawings from the Drawing Out Gehry series. The drawings are driven by an interest in relational encounters and space they take in. Away from an object or component-directed perception of space and towards the understanding of space as the relationship between elements, this set of drawings is in search of the quality and intrigue raised by the architectural event as the encounter of spatial circumstances.

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