HISTORIANS AND THEIR SOURCES

This study analyses the development of the use of unpublished source material in Swedish doctoral theses in history, 1959–2015. The results show that the proportion of theses which rely on such materials has dropped in relation to the level that existed up to and including the year 2007. From having dropped below 90% only twice during the time period 1959–2007, the average for the years 2008–2015 is 77%. There are several explanations as to why this decline in use of unpublished source material has occurred. An initial explanation is that more doctoral theses are now published within the subdiscipline of historical science, in which, for example, history didactics and uses of history are included. History didactics and uses of history have gained more ground within the overall field of historical research during the last 10 years. The next-to-lowest figures are found in the category history of ideas, culture, and opinion history; a category which during the time period 2008–2015 remained at a fairly constant share of the total number of doctoral defences in history in Sweden in relation to the situation at the beginning of the 2000s.     

L'ANALYSE DE CONTENU DES DISCOURS SUR L'ESPACE: UNE MÉTHODE

Parmi les discours sur lesquels se penche aujourd'hui la géographie, notamment d'inspiration humaniste, le 'courrier des lecteurs' apparat comme un outilpri-vilégié d'identification de la pensée relative à I'espace. Pour formaliser cette pensée, différentes techniques d'anatyse de contenu s'offrent au géographe. Nous illus-trerons comment une méthode d'analyse de contenu qui complète la mise à jour des éléments constitutes du discours par I'identification de leurs articulations au sein de structures peut révéler non seulement des images de I'environnement mais aussi de véritables modes d'appréhension de I'espace.
Of the many written communications that are explored today by geographers, especially by those who work within a humanist perspective, the letters to the editor appear to be a useful tool for identifying spatial meanings. The appraisal of these meanings can be achieved through different techniques of content analysis. I will illustrate how a method of content analysis that focuses on the basic components of the discourse and on the interrelated structures of these components can reveal not only images of the environment, but also the ways in which spatial experiences are understood.     

Insights into the processes behind the contamination of degraded human teeth and bone samples with exogenous sources of DNA

A principal problem facing human DNA studies that use old and degraded remains is contamination from other sources of human DNA. In this study we have attempted to contaminate deliberately bones and teeth sampled from a medieval collection excavated in Trondheim, Norway, in order to investigate this poorly understood phenomenon. Five pairs of teeth and bone samples were bathed in water containing various concentrations (from 10⁻⁹ and 10⁻²¹ g/l) of purified ΦX174 DNA. Subsequently the samples were subjected to a routine decontamination protocol involving a bleach bath followed by exposure to λ=254 nm ultraviolet light, prior to DNA extraction and analysis for evidence of the persistence of the contaminant. The results support previous speculation that bone is more susceptible to water‐borne sources of contaminant DNA, although both bone and teeth are readily contaminated and are difficult to decontaminate using the tested protocol. We believe that this is largely due to the porous nature of bone and teeth facilitating the deep penetration of the contaminant DNA. To simulate a more realistic handling situation, 27 further teeth were directly handled and washed, then decontaminated, prior to assaying for the residual presence of the handler's DNA. Surprisingly, although our results suggest that a large proportion of the teeth were contaminated with multiple sources of human DNA prior to our investigation, we were unable to contaminate the samples with further human DNA. One potential explanation may be the deposition of sediment or other structural changes that occur within the samples as they desiccate post‐excavation, which may protect samples from subsequent contamination, but also prevent the efficacy of bleach baths in decontaminating specimens. Copyright © 2006 John Wiley & Sons, Ltd.     

Echoes in the Grand Canyon: Public Catastrophes and Technologies of Control in American Aviation

A series of dramatic mid‐air collisions during the late 1950s caused the United States to embark on a reconstruction of its air traffic control system. In pursuit of the concept of ‘positive control’ over all aircraft, the Federal Aviation Agency modified and deployed military technologies under orders to eliminate these highly public catastrophes. In the process, it curtailed one of flight's great dreams, freedom of the skies, imposing technological and procedural requirements on fliers wanting access to urban airspace. Resistance from private fliers produced modification of some of the agency's plans, causing it to adapt its planned airspace structures to permit private fliers limited access without having to submit to the control system.     

Personal Tragedy and Presidential Performance: Calvin Coolidge as Legislative Leader

The elevation of Calvin Coolidge to the presidency in the summer of 1923 was impressively smooth. The new president was entirely comfortable in his new role and impressed Washington officialdom with his self-assuredness, political adroitness, and hard work. One of his main initial objectives was to develop a strong and productive relationship with Congress and to lobby it to enact his extensive and progressive legislative agenda. During his first year, he worked vigorously at these tasks and achieved a notable degree of success. However, in July, 1924, the president confronted a devastating personal tragedy–the death of his young son–that left a deep imprint on the remainder of his presidency. He lost interest in legislative affairs and withdrew from interaction with Congress. The result is that he has been ranked among the least successful presidential leaders of Congress in U.S. history. However, incapacitation as a result of severe clinical depression rather than either incompetence or ideology was the precipitating cause.     

History as it really wasn't: the myths of Italian historiography

According to a number of influential Italian contemporary historians, Italian political history since Unification has been distorted by politicized scholarship and the existence of a large number of untenable political myths. These views are presented in the volume Miti e storia dell'Italia unita (1999). In this roundtable, Ruth Ben-Ghiat, Carl Ipsen and David Kertzer discuss this thesis with two of its leading proponents: Ernesto Galli della Loggia and Luciano Cafagna. Secondo alcuni studiosi dell'Italia contemporanea, la storiografia dell'Italia unita è stata travisata dalla tendenza a scrivere testi politicizzati e dall'esistenza di numerosi miti politici infondati. In questa tavola rotonda, Ruth Ben-Ghiat, Carl Ipsen e David Kertzer discutono le tesi proposte nel volumi Miti e Storia dell'Italia Unite 1999 (Bologna, Il Mulino) con due suoi sostenitori: Ernesto Galli della Loggia e Luciano Cafagna.     

The Communist Hypothesis and Revolutionary Capitalisms: Exploring the Idea of Communist Geographies for the Twenty‐first Century

Abstract: This essay starts from the presumption that “the communist hypothesis” is still a good one, but argues that the idea of communism requires urgent re‐thinking in light of both the “obscure” disaster of twentieth century really existing socialism and the specific conditions of twenty‐first century capitalism. I explore the contours of the communist hypothesis, chart the characteristics of the revolutionary capitalism of the twenty‐first century and consider how our present predicament relates to the urgency of rethinking and reviving the communist hypothesis. Throughout, I tentatively suggest a number of avenues that require urgent intellectual and theoretical attention and interrogate the present condition in light of the possibilities for creating communist geographies for the twenty‐first century.