The next 25 years: vertebrate systematics

1987 ◽  
Vol 65 (4) ◽  
pp. 779-785 ◽  
Author(s):  
Joseph S. Nelson
Keyword(s):  
Dominant Role ◽  
Vital Role ◽  
Fundamental Aspect ◽  
Evolutionary Mechanisms ◽  
Biology Students ◽  
Ancestral Group ◽  
Morphological Studies ◽  
Extant Species ◽  
Recent Developments ◽  
History Of

Systematics, defined here as the study of the evolutionary history of life, plays a vital role in biology. Together with studies of evolutionary mechanisms, it gives special meaning to biology; it is the unifying force in biology. As a result of recent developments in techniques useful to systematics and in philosophical approaches to systematics, it will be possible for vertebrate systematics to make major advances. Comparative morphological studies of extant and extinct species will play the dominant role in our understanding of the overall pattern of vertebrate phylogeny. For extant species, data from immunological, electrophoretic, and amino acid sequence studies will be important, but the major advances will come from studies of mitochondrial DNA and DNA–DNA hybridization. Examples of phylogenetic controversies that should be resolved in the next 25 years concern the following: the ancestral group of jawed vertebrates, the relationships of Latimeria, the ancestral group of tetrapods, the interrelationships of birds and mammals to each other, and the closest living relatives of man. Both cladistic and synthetic classifications will survive; each serves a useful purpose in translating phylogenetic ideas. Systematics, together with evolution, is a fundamental aspect of biology and should be included in the undergraduate program of all biology students; all biology departments should have a research program in systematics involving graduate students and staff. In addition, museums are a vital part of biology departments, in both their teaching and research functions, and their existence within universities must be nourished.

Philosophic Pride

2012 ◽  
Author(s):  
Christopher Brooke
Keyword(s):  
Early Modern ◽  
Political Thought ◽  
Historical Context ◽  
Vital Role ◽  
Intellectual Life ◽  
Marcus Aurelius ◽  
Hugo Grotius ◽  
History Of ◽  
Early Modern Era ◽  
Modern Era

This is the first full-scale look at the essential place of Stoicism in the foundations of modern political thought. Spanning the period from Justus Lipsius's Politics in 1589 to Jean-Jacques Rousseau's Emile in 1762, and concentrating on arguments originating from England, France, and the Netherlands, the book considers how political writers of the period engaged with the ideas of the Roman and Greek Stoics that they found in works by Cicero, Seneca, Epictetus, and Marcus Aurelius. The book examines key texts in their historical context, paying special attention to the history of classical scholarship and the historiography of philosophy. The book delves into the persisting tension between Stoicism and the tradition of Augustinian anti-Stoic criticism, which held Stoicism to be a philosophy for the proud who denied their fallen condition. Concentrating on arguments in moral psychology surrounding the foundations of human sociability and self-love, the book details how the engagement with Roman Stoicism shaped early modern political philosophy and offers significant new interpretations of Lipsius and Rousseau together with fresh perspectives on the political thought of Hugo Grotius and Thomas Hobbes. The book shows how the legacy of the Stoics played a vital role in European intellectual life in the early modern era.

The Roman Retail Revolution

2018 ◽  
Author(s):  
Steven J. R. Ellis
Keyword(s):  
Interdisciplinary Approach ◽  
Vital Role ◽  
Archaeological Material ◽  
Roman World ◽  
The Social ◽  
History Of ◽  
Food And Drink ◽  
Bodies Of Evidence ◽  
Definition Of ◽  
The University

Tabernae were ubiquitous among all Roman cities, lining the busiest streets and dominating their most crowded intersections, and in numbers not known by any other form of building. That they played a vital role in the operation of the city—indeed in the very definition of urbanization—is a point too often under-appreciated in Roman studies, or at best assumed. The Roman Retail Revolution is a thorough investigation into the social and economic worlds of the Roman shop. With a focus on food and drink outlets, and with a critical analysis of both archaeological material and textual sources, Ellis challenges many of the conventional ideas about the place of retailing in the Roman city. A new framework is forwarded, for example, to understand the motivations behind urban investment in tabernae. Their historical development is also unraveled to identify three major waves—or, revolutions—in the shaping of retail landscapes. Two new bodies of evidence underpin the volume. The first is generated from the University of Cincinnati’s recent archaeological excavations into a Pompeian neighborhood of close to twenty shop-fronts. The second comes from a field survey of the retail landscapes of more than a hundred cities from across the Roman world. The richness of this information, combined with an interdisciplinary approach to the lives of the Roman sub-elite, results in a refreshingly original look at the history of retailing and urbanism in the Roman world.

Conclusion

2018 ◽  
Author(s):  
Ildar Garipzanov
Keyword(s):  
Cultural History ◽  
Middle Ages ◽  
Late Antiquity ◽  
Western Europe ◽  
Dominant Role ◽  
Ninth Century ◽  
Sources Of Authority ◽  
History Of ◽  
Historical Periods

The concluding chapter highlights how the cultural history of graphic signs of authority in late antiquity and the early Middle Ages encapsulated the profound transformation of political culture in the Mediterranean and Europe from approximately the fourth to ninth centuries. It also reflects on the transcendent sources of authority in these historical periods, and the role of graphic signs in highlighting this connection. Finally, it warns that, despite the apparent dominant role of the sign of the cross and cruciform graphic devices in providing access to transcendent protection and support in ninth-century Western Europe, some people could still employ alternative graphic signs deriving from older occult traditions in their recourse to transcendent powers.

Epidemics

2018 ◽  
Author(s):  
Samuel K. Cohn, Jr.
Keyword(s):  
Sixteenth Century ◽  
Preventive Measures ◽  
Fifth Century ◽  
The Other ◽  
Fundamental Aspect ◽  
Late Nineteenth Century ◽  
Psychological Consequences ◽  
The Us ◽  
History Of ◽  
Race Ethnicity

This book challenges a dominant hypothesis in the study of epidemics. From an interdisciplinary array of scholars, a consensus has emerged: invariably, epidemics in past times provoked class hatred, blame of the ‘other’, or victimization of the diseases’ victims. It is also claimed that when diseases were mysterious, without cures or preventive measures, they more readily provoked ‘sinister connotations’. The evidence for these assumptions, however, comes from a handful of examples—the Black Death, the Great Pox at the end of the sixteenth century, cholera riots of the 1830s, and AIDS, centred almost exclusively on the US experience. By investigating thousands of descriptions of epidemics, reaching back before the fifth-century BCE Plague of Athens to the eruption of Ebola in 2014, this study traces epidemics’ socio-psychological consequences across time and discovers a radically different picture. First, scholars, especially post-AIDS, have missed a fundamental aspect of the history of epidemics: their remarkable power to unify societies across class, race, ethnicity, and religion, spurring self-sacrifice and compassion. Second, hatred and violence cannot be relegated to a time when diseases were mysterious, before the ‘laboratory revolution’ of the late nineteenth century: in fact, modernity was the great incubator of a disease–hate nexus. Third, even with diseases that have tended to provoke hatred, such as smallpox, poliomyelitis, plague, and cholera, blaming ‘the other’ or victimizing disease bearers has been rare. Instead, the history of epidemics and their socio-psychological consequences has been richer and more varied than scholars and public intellectuals have heretofore allowed.

scholarly journals Multi-Locus Selection and the Structure of Variation at the white Gene of Drosophila melanogaster

Genetics ◽  
1996 ◽  
Vol 144 (2) ◽  
pp. 635-645 ◽  
Author(s):  
David A Kirby ◽  
Wolfgang Stephan
Keyword(s):  
Drosophila Melanogaster ◽  
White Gene ◽  
Transcriptional Unit ◽  
North American Population ◽  
Evolutionary Mechanisms ◽  
Locus Selection ◽  
Neutral Equilibrium ◽  
History Of ◽  
High Degree ◽  
Very High

Abstract We surveyed sequence variation and divergence for the entire 5972-bp transcriptional unit of the white gene in 15 lines of Drosophila melanogaster and one line of D. simulans. We found a very high degree of haplotypic structuring for the polymorphisms in the 3′ half of the gene, as opposed to the polymorphisms in the 5′ half. To determine the evolutionary mechanisms responsible for this pattern, we sequenced a 1612-bp segment of the white gene from an additional 33 lines of D. melanogaster from a European and a North American population. This 1612-bp segment encompasses an 834bp region of the white gene in which the polymorphisms form high frequency haplotypes that cannot be explained by a neutral equilibrium model of molecular evolution. The small number of recombinants in the 834bp region suggests epistatic selection as the cause of the haplotypic structuring, while an investigation of nucleotide diversity supports a directional selection hypothesis. A multi-locus selection model that combines features from both-hypotheses and takes the recent history of D. melanogaster into account may be the best explanation for these data.

scholarly journals Extensive introgression and mosaic genomes of Mediterranean endemic lizards

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Weizhao Yang ◽  
Nathalie Feiner ◽  
Catarina Pinho ◽  
Geoffrey M. While ◽  
Antigoni Kaliontzopoulou ◽  
...  
Keyword(s):  
Evolutionary History ◽  
Mediterranean Islands ◽  
The Past ◽  
Island Endemics ◽  
Extant Species ◽  
Mediterranean Island ◽  
History Of ◽  
Entire History ◽  
The Mediterranean ◽  
The Mediterranean Basin

AbstractThe Mediterranean basin is a hotspot of biodiversity, fuelled by climatic oscillation and geological change over the past 20 million years. Wall lizards of the genus Podarcis are among the most abundant, diverse, and conspicuous Mediterranean fauna. Here, we unravel the remarkably entangled evolutionary history of wall lizards by sequencing genomes of 34 major lineages covering 26 species. We demonstrate an early (>11 MYA) separation into two clades centred on the Iberian and Balkan Peninsulas, and two clades of Mediterranean island endemics. Diversification within these clades was pronounced between 6.5–4.0 MYA, a period spanning the Messinian Salinity Crisis, during which the Mediterranean Sea nearly dried up before rapidly refilling. However, genetic exchange between lineages has been a pervasive feature throughout the entire history of wall lizards. This has resulted in a highly reticulated pattern of evolution across the group, characterised by mosaic genomes with major contributions from two or more parental taxa. These hybrid lineages gave rise to several of the extant species that are endemic to Mediterranean islands. The mosaic genomes of island endemics may have promoted their extraordinary adaptability and striking diversity in body size, shape and colouration, which have puzzled biologists for centuries.

scholarly journals The Past, Present and Future of Cannabis sativa Tissue Culture

Plants ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 185
Author(s):  
Adrian S. Monthony ◽  
Serena R. Page ◽  
Mohsen Hesami ◽  
Andrew Maxwell P. Jones
Keyword(s):  
Tissue Culture ◽  
Disease Virus ◽  
Cannabis Sativa ◽  
Clonal Plants ◽  
Future Directions ◽  
The Past ◽  
Recent Developments ◽  
History Of ◽  
Drug Type

The recent legalization of Cannabis sativa L. in many regions has revealed a need for effective propagation and biotechnologies for the species. Micropropagation affords researchers and producers methods to rapidly propagate insect-/disease-/virus-free clonal plants and store germplasm and forms the basis for other biotechnologies. Despite this need, research in the area is limited due to the long history of prohibitions and restrictions. Existing literature has multiple limitations: many publications use hemp as a proxy for drug-type Cannabis when it is well established that there is significant genotype specificity; studies using drug-type cultivars are predominantly optimized using a single cultivar; most protocols have not been replicated by independent groups, and some attempts demonstrate a lack of reproducibility across genotypes. Due to culture decline and other problems, the multiplication phase of micropropagation (Stage 2) has not been fully developed in many reports. This review will provide a brief background on the history and botany of Cannabis as well as a comprehensive and critical summary of Cannabis tissue culture. Special attention will be paid to current challenges faced by researchers, the limitations of existing Cannabis micropropagation studies, and recent developments and future directions of Cannabis tissue culture technologies.

„Denn das Falsche kann echt werden“

2021 ◽  
Vol 46 (1) ◽  
pp. 200-215
Author(s):  
Joachim Seng
Keyword(s):  
Family Background ◽  
Family Members ◽  
Vital Role ◽  
Cultural Setting ◽  
History Of ◽  
Autobiographical Accounts ◽  
Johann Wolfgang Goethe ◽  
Early Influences

Abstract : In his autobiographical accounts, Johann Wolfgang Goethe emphasizes the vital role that his father’s collections of books and art had for his own Bildung. In fact, the library of Johann Caspar Goethe (1710–1782) played a vital role in Goethe’s education and early studies while also attesting to his family background and status. However, soon after Johann Caspar’s death, his library was dissolved – and whereas Johann Wolfgang Goethe and other family members integrated some of the books into their own collections, the majority of objects were sold and dispersed. Today, a handwritten catalog commissioned by Goethe’s mother, Catharina Elisabeth Goethe, just before the sale (in 1793/1794), is a critical tool for reconstructing the collection. This article describes the history of Johann Caspar Goethe’s library, its dispersal as well as the efforts to reconstruct the collection. As the retrieval of the original copies from Johann Caspar’s library and the re-establishment of the original collection were impossible, the Freies Deutsches Hochstift has managed to collect equivalent titles and editions in order to restore a library that allows visitors to the Goethe-Haus in Frankfurt to learn about Goethe’s family background, the cultural setting of his upbringing, and early influences on his education.

Transforming Historical Objectivism into Historical Hermeneutics: From “Historical Illness” to Properly Lived Historicality

2019 ◽  
Vol 61 (4) ◽  
pp. 490-515
Author(s):  
Thomas Tops
Keyword(s):  
Reception History ◽  
Biblical Studies ◽  
Historical Study ◽  
Necessary Condition ◽  
New Paradigm ◽  
History Of Interpretation ◽  
Critical Methodology ◽  
Recent Developments ◽  
History Of ◽  
Biblical Texts

Summary The present study analyses recent criticisms against the use of modern-historical methodologies in Biblical Studies. These methodologies abstract from the historical horizon of the researcher. In order to relate properly to the historicality of the researcher, historical objectivism needs to be transformed into historical hermeneutics. Recent developments in the historical methodology of biblical scholars are unable to reckon with the historicality of the researcher due to the partial or incorrect implementation of Gadamer’s views on reception history. I analyse the views of Nietzsche, Kierkegaard, and Gadamer on historicality and contend that the study of reception history is a necessary condition for conducting historical study from within the limits of our historicality. Reception history should not be a distinct methodological step to study the “Nachleben” of biblical texts, but needs to clarify how the understanding of these texts is already effected by their history of interpretation. The awareness of the presuppositions that have guided previous interpretations of biblical texts enables us to be confronted by their alterity. This confrontation calls for a synthesis between reception-historical and historical-critical methodology that introduces a new paradigm for conducting historical study in Biblical Studies in dialogue with other theological disciplines.

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