Gender-specific differences – first results from a survey on dental surgery

This study focuses on dental surgery from the perspective of practicing dentists through a nationwide survey among practicing dentists in Germany. Subjects were surveyed with respect to patient care and their training in dental surgery. With respect to surgical activity, this survey confirms male dominance in the field and that female dentists may be inclined grade surgical interventions as ‘complicated and risky’. Male dentists appear to be willing to take the same risks with greater self-confidence, whereas female dentists appear to overrate their personal uncertainty by underestimating their real technical capabilities. Though dental treatment in general is increasingly dominated by women, surgery is still dominated by male dentists. This can be viewed through observed gender differences with respect to risk perception and we advocate additional professional training of risk competence as mandatory for the future.     

The ‘Sword and Shield of the Party’: how the Vietnamese People’s Public Security Forces portray themselves

This paper shows that since the beginning of the reform period in 1986 the regime in Hanoi has taken great pains to create the image of the state having legitimate and, indeed, heroic security organs that acted as the ‘saviors of the Vietnamese revolution’ and still serve as the ‘shield and sword’ of the Vietnamese Communist Party. I argue that while previously the socialist state used to regard the history of its security organs as top secret, over the last few years, a huge amount of resources have been mobilized to actively propagate a sacred and romanticized image of the security apparatus.     

Public capital stock and interstate variations in manufacturing efficiency

This study focuses on the role of public capital stock in contributing to interstate differences in productive efficiency in manufacturing. Our motivation is to assess the role of public capital as a source of persistent regional variations in efficiency, and thus determine if public infrastructure policies might reasonably be expected to alter the competitive environment of a state's manufacturing sector. We use a stochastic frontier production function model, explicitly incorporating infrastructure capital, to examine the relative performance of the aggregate manufacturing sector across states and over time. We calculate an index of productive efficiency and estimate the determinants of statewide variations in it. These results show that variations in per capita infrastructure stocks significantly affect manufacturing efficiency. Considering the behavior of public capital as both a direct and an indirect input furthers our understanding of the role of infrastructure and its implications for regional economic development policies.     

Metrological framework for selecting morphological characters to identify species and estimate developmental maturity of forensically significant insect specimens

Accurate age estimates of immature necrophagous insects associated with a human or animal body can provide evidence of how long the body has been dead. These estimates are based on species-specific details of the insects’ aging processes, and therefore require accurate species identification and developmental stage estimation. Many professionals who produce or use identified organisms as forensic evidence have little training in taxonomy or metrology, and appreciate the availability of formalized principles and standards for biological identification. Taxonomic identifications are usually most readily and economically made using categorical and qualitative morphological characters, but it may be necessary to use less convenient and potentially more ambiguous characters that are continuous and quantitative if two candidate species are closely related, or if identifying developmental stages within a species. Characters should be selected by criteria such as taxonomic specificity and metrological repeatability and relative error. We propose such a hierarchical framework, critique various measurements of immature insects, and suggest some standard approaches to determine the reliability of organismal identifications and measurements in estimating postmortem intervals. Relevant criteria for good characters include high repeatability (including low scope for ambiguity or parallax effects), pronounced discreteness, and small relative error in measurements. These same principles apply to individuation of unique objects in general.

Key points

• Metrological rigour can increase in forensic entomology by selecting measurements based on their metrological qualities.
• Selection of high-quality features for morphological identification of organisms should consider these criteria: (1) pronounced discreteness of features (minimising group overlap or maximizing interval); (2) high repeatability of assessment (such as symmetrical width rather than asymmetrical length); (3) small relative error in measurement (selecting the physically largest continuous rigid feature for measurement).
• These metrological principles also apply to individuation of unique objects in general.