One of the major benefits of interdisciplinary research is the chance to swap tools between fields, to save having to reinvent the wheel. The fields of language evolution and evolutionary biology have been swapping tools for centuries to the enrichment of both. Here I will discuss three categories of tool swapping: conceptual tools, where analogies are drawn between hypotheses, patterns or processes, so that one field can take advantage of the path cut through the intellectual jungle by the other; theoretical (...) tools, where the machinery developed to process the data in one field is adapted to be applied to the data of the other; and analytical tools, where common problems encountered in both fields can be solved using useful tricks developed by one or the other. I will argue that conceptual tools borrowed from linguistics contributed to the Darwinian revolution in biology; that theoretical tools of evolutionary change can in some cases be applied to both genetic and linguistic data without having to assume the underlying evolutionary processes are exactly the same; and that there are practical problems that have long been recognised in historical linguistics that may be solved by borrowing some useful analytical tools from evolutionary biology. (shrink)

The word “gene” means different things to different people, and can even be used in multiple ways by the same individual. In this review, I follow a particular thread running through Griffith and Stotz’s “Genetics and Philosophy: an introduction”, which is the way that methods of investigation influence the way we define the concept of “gene”, from nineteen century breeding experiments to twenty-first century big data bioinformatics. These different views lead to a set of gene concepts, which only partially overlap (...) each other, each of which picks up on a different part of gene behaviour, function or scientific utility. This plurality of concepts carries over to the use of the concept of “information” in biology, where the non-overlapping concepts can be connected to whether you view the genome as a blueprint for development, a response to environmental triggers, an engine of heritability, or a document of history. (shrink)

This chapter is concerned with the Cambrian explosion. It considers only one particular kind of explanation for the Cambrian radiation: that major innovations in animal body plan were produced from relatively few genetic changes of large phenotypic effect. It investigates the developmental genetic hypothesis of the origin and maintenance of body plans. This chapter suggests that the genetic architecture underlying body plans was not set during the Cambrian and has been immutable since. It shows that the link between body plan (...) and phylum can become blurry when the minor phyla are considered. (shrink)

“ The Origins of Genome Architecture ” by Michael Lynch (2007) may not immediately sound like a book that someone interested in the philosophy of biology would grab off the shelf. But there are three important reasons why you should read this book. Firstly, if you want to understand biological evolution, you should have at least a passing familiarity with evolutionary change at the level of the genome. This is not to say that everyone interested in evolution should be a (...) geneticist or a bioinformatician, but that a working knowledge of genetic change is an essential part of the intellectual toolkit of modern evolutionary biology, even if your primary focus is the evolution of behaviour or the diversity of communities. Secondly, this book provides excellent examples of another important tool in the biologist’s intellectual toolkit, but one that is rarely explained or illustrated to such an extent: null (or neutral) models. The role null models play in testing hypotheses in evolution is a central focus of this book. Thirdly, as an accomplished work of advocacy for a strictly microevolutionary view of evolution, this book provides grist for the mill for the important debate about whether population genetic processes are the sine qua non of evolutionary explanations. (shrink)

Phylogenies are increasingly being used to investigate human history, diversification and cultural evolution. While using phylogenies in this way is not new, new modes of analysis are being applied to inferring history, reconstructing past states, and examining processes of change. Phylogenies have the advantage of providing a way of creating a continuous history of all current populations, and they make a large number of analyses and hypothesis tests possible even when other forms of historical information are patchy or nonexistent. In (...) common with approaches taken in other historical sciences, phylogenetics is a way of reconstructing past and processes using the traces left in the present day. Trees, based on DNA, language, cultural traits, or other evidence, are now sprouting all over the academic landscape. The increasing use of phylogenetic analysis to understand human cultural evolution has been embraced by some, and scorned by others. The purpose of this article is not to review methods and applications of phylogenetic analyses, nor to consider the growing field of cultural phylogenetics, but, more broadly, to explore how we interpret phylogenies as narratives about human diversification. The first half of the article deals with meaning: phylogenies are often interpreted as histories, but a bifurcating tree is at best an abstract representation of history, and its connections to past events and processes is dependent on the data used, the assumptions made in the analysis, and the degree to which nodes in the tree (where one lineage splits into two) can be connected to change and movement in real populations. The second half of the article explores the purpose of phylogenies: a tree does not have to be a literal history of human lineages in order to be useful for investigating processes of human diversification. Phylogenies should not be read as accurate records of history, but as a way of exploring plausible explanations for current patterns of diversity. Phylogenies provide important information that can be used to test ideas about human diversity, and can help to guard against errors of inference arising from statistical artifacts. (shrink)

Does biology have general laws that apply to all levels of biological organisation, across all evolutionary time? In their book “Biology’s first law: the tendency for diversity and complexity to increase in evolutionary systems” (2010), Daniel McShea and Robert Brandon propose that the most fundamental law of biology is that all levels of biological organisation have an underlying tendency to become more complex and diverse over time. A range of processes, most notably selection, can prevent the expression of this tendency, (...) but they predict that, on average, we should see that lineages tend toward greater diversity and complexity, driven by fundamentally neutral processes. Their hypothesis can be summarised as “diversity is easy, stasis is hard”. Here, I consider evidence for this “zero force evolutionary law”. It provides a fair description of evolutionary change at the genomic level, but the predictions of the proposed law are not met for broad scale patterns in the evolution of the animal kingdom. (shrink)

Two core motivational systems have been conceptualized as underlying emotion and behavior. The approach system drives the organism toward stimuli or events in the environment, and the avoidance system instead deters the organism away from these stimuli or events. This approach—avoidance dichotomy has been central to theories of emotion. Advances in neuroscience complementing well-designed behavioral experiments have begun to elucidate the neural mechanisms underlying approach—avoidance motivation, suggesting that these two systems exist in parallel and are lateralized in the brain. This (...) review explores the notion of approach—avoidance and the cerebral lateralization of these motivational tendencies. (shrink)

This note investigates the class of finite initial segments of the cumulative hierarchy of pure sets. We show that this class is first-order definable over the class of finite directed graphs and that this class admits a first-order definable global linear order. We apply this last result to show that FO = FO.

The extended reliance on media can be seen as one indicator of mediatization. But even though we can assume that the pervasive character of digital media essentially changes the way people experience everyday life, we cannot take these experiences for granted. There has recently been a formulation of three tasks for mediatization research; historicity, specificity and measurability, needed to empirically verify mediatization processes across time and space. In this article, we present a tool designed to handle these tasks, by measuring (...) the extent to which people experience that media reach into the deeper layers of daily human life. The tool was tested in an empirical study conducted in Sweden in 2017. The results show that perceived media reliance is played out in relation to three types of basic desires: (1) (re)productive desires, (2) recognition desires, and (3) civic desires, and is socially structured and structuring. We argue this tool, in diachronic analyses, can measure one important aspect of mediatization. (shrink)

Overall assessments and balancing of interests -- Multi-criteria analysis -- Intuition -- Legal examples of decision-making with SAW -- Decision-making under uncertainty -- Evidentiary aspects.

Rutherford and Lindell (2011) review the theoretical and empirical research conceptualizing emotion and emotional processing within an approach-avoidance framework. This is accompanied by an extensive discussion of the cerebral lateralization of approach-avoidance. Berntson, Norman, and Cacioppo (2011) extend this discussion by presenting a bivariate evaluative model of emotion which adopts a valence-based (positive, negative) dictum. Here we discuss this latter model in the context of an approach-avoidance perspective.

The aim of the study was to describe and compare whether women who used the pill or condoms discussed the choice of contraceptive method with their partner, and their sexual activity and interaction with their partner. It also studied women's thoughts about the attitudes of their partner and close others concerning unplanned pregnancy and abortion. A total of 134 women, aged 23-29, who had a stable partner relationship, answered three questionnaires. The contraceptive pill was used by 94 of the women (...) and 40 used condoms. The results show that most women discussed and planned choice and use of contraceptive method with their partner. However, more women whose partner used the condom discussed and talked about the use of the contraceptive method than women who used the pill. Independent of the contraceptive method, the women stated that non-agreement with the partner about the method resulted in no intercourse. More women who used the pill reported that they sometimes forgot to use it compared to women who used the condom. This latter group also stated to a higher degree that unplanned pregnancy would result in positive attitudes on the part of their partner and close others. (shrink)

This Article examines the ways in which market vendors in Kampala, Uganda, responded to plans to redevelop their markets through the concession of long-term leases to private investors. These plans met with massive resistance from the marketers, with significant outcomes. The Article uncovers how the marketers actively negotiated a “gray space” between legality and illegality and creatively used the law, with a view to asserting themselves as the legitimate rulers of their markets. It shows how the marketers engaged in highly (...) diverse modalities of struggle, stretching across the legal/illegal boundary. They organized in multiple configurations which were flexible, hybrid and mutant in character, rather than being fixed in particular organizational categories. In their struggles, the marketers engaged in shifting alliances and with a disparate range of political allies. Their politics were fluid, untamed and pragmatic, but also contradictory and fractured. This flexibility and pragmatism enabled them to navigate a complex political landscape and to make instrumental use of a generally unfavorable legal environment. (shrink)

Professional identity and competent ethical behaviors of nursing students are commonly developed through curricular inclusion of professional nursing values education. Despite the enactment of this approach, nursing students continue to express difficulty in managing ethical conflicts encountered in their practice. This descriptive correlational study explores the relationships between professional nursing values, self-esteem, and ethical decision making among senior baccalaureate nursing students. A convenience sample of 47 senior nursing students from the United States were surveyed for their level of internalized professional (...) nursing values (Revised Professional Nursing Values Scale), level of self-esteem (Rosenberg’s Self-Esteem Scale), and perceived level of confidence in ethical decision making. A significant positive relationship (p < 0.05) was found between nursing students’ professional nursing values and levels of self-esteem. The results of this study can be useful to nursing educators whose efforts are focused on promoting professional identity development and competent ethical behaviors of future nurses. (shrink)

Professional identity and competent ethical behaviors of nursing students are commonly developed through curricular inclusion of professional nursing values education. Despite the enactment of this approach, nursing students continue to express difficulty in managing ethical conflicts encountered in their practice. This descriptive correlational study explores the relationships between professional nursing values, self-esteem, and ethical decision making among senior baccalaureate nursing students. A convenience sample of 47 senior nursing students from the United States were surveyed for their level of internalized professional (...) nursing values (Revised Professional Nursing Values Scale), level of self-esteem (Rosenberg’s Self-Esteem Scale), and perceived level of confidence in ethical decision making. A significant positive relationship (p < 0.05) was found between nursing students’ professional nursing values and levels of self-esteem. The results of this study can be useful to nursing educators whose efforts are focused on promoting professional identity development and competent ethical behaviors of future nurses. (shrink)

This study investigates how Human Factors is applied when designing and developing Immersive Visual Technologies, including Augmented Reality, Mixed Reality, and Virtual Reality. We interviewed fourteen people working at different organizations, that develop IVT applications in the Nordic region. We used thematic analysis to derive themes from the interviews. The results showed an insufficient knowledge and application of HF in IVT development, due to the lack of awareness of both scope and significance of HF, resource allocation strategy, market inertia, stakeholder's (...) involvement, standardization of HF application and IVT uses, and technology maturity. This situation could be improved by allocating experts, adjusting organizational strategy to balance resource allocation, training developers and user organizations to raise awareness and to encourage co-creative design and knowledge sharing, create a sense of ownership amongst stakeholders, and ensure the usefulness of the technology to the user's work. (shrink)

A variety of studies show that parental absence early in life leads to deleterious effects on the developing CNS. This is thought to be largely because evolutionary-dependent stimuli are necessary for the appropriate postnatal development of the young brain, an effect sometimes termed the “experience-expectant brain,” with parents providing the necessary input for normative synaptic connections to develop and appropriate neuronal survival to occur. Principal among CNS systems affected by parental input are the monoamine systems. In the present study,N= 434 (...) rhesus monkeys (233 males, 201 females) were reared in one of two conditions: as mother-reared controls (MR;n= 269) or without adults with 24-h access to same-aged peers (PR;n= 165). When subjects were six-months-old, they underwent a separation paradigm involving 4, sequential, four-day social separations from their mothers or peers, with each separation followed by three-day reunions with their mothers or their peers. Prior to the separation paradigm, baseline cisternal CSF samples were obtained, as well as at the end of each the four social separations, and after final separation, during a recovery period. CSF was assayed for concentrations of monoamine metabolites and a blood sample was genotyped for the serotonin transporter (5-HTT) genotype. Replicating earlier landmark findings, PR subjects with thesallele exhibited lower baseline concentrations of the serotonin metabolite 5-hydroxyindoleacetic acid (5-HIAA), when compared to PR subjects homozygous for theLallele. MR subjects were undifferentiated by genotype. PR subjects exhibited lower CSF 5-HIAA concentrations during baseline, but higher CSF 5-HIAA during social separations, when compared to MR subjects. There were rearing effects for the dopamine metabolite homovanillic acid (HVA) and for the norepinephrine metabolite 3-methoxy-4-hydroxyphenylglycol (MHPG), with PR subjects showing higher HVA and lower MHPG when compared to MR subjects. These findings indicate that there are long-term deficits in the response of monoamines following early maternal absence. The results of this study confirm and extend earlier findings that early parental absence has deleterious consequences for the development of the monoamine systems, and that these consequences are modulated by the 5-HTT genotype. (shrink)

In their considered reviews both Thomas Pradeu and Lindell Bromham introduce important topics not sufficiently covered in our book. Pradeu asks us to enlarge on the epigenetic and ecological context of genes, particularly in the form of symbioses. We use the relationship between eukaryotes and their symbiotic organisms as a welcome opportunity to clarify our concept of the developmental niche, and its relationship to the developmental system. Bromham’s comments reveal that she is primarily interested in identifying macroevolutionary (...) patterns. From her vantage point eco-evo-devo, the study of phenotypic plasticity, epigenetic and exogenetic inheritance, have not yet demonstrated the need for any revolutionary change in evolutionary thought. For us they highlight the extent to which proximate developmental mechanisms can inform ultimate biology. (shrink)

Rutherford and Lindell (2011) review an extensive literature on lateralization of emotion. As they note, an important issue surrounding this question is the nature of emotion, which bears on what, precisely, is lateralized. The present comments are intended to broaden the context of the review, by considering lateralization from the standpoint of a bivariate model of evaluative processes and a neuroevolutionary perspective.

Wholes, parts, form and powers Content Type Journal Article Category Book Review Pages 1-4 DOI 10.1007/s11016-011-9585-6 Authors Ruth Porter Groff, Department of Political Science, Saint Louis University, 3750 Lindell Blvd, St. Louis, MO 63108-3412, USA Journal Metascience Online ISSN 1467-9981 Print ISSN 0815-0796.