From the State to the Streets: The Debate over the Civil Union Bill and Conservative Strategic Change in Peru

The adoption of SOGI policies depends on the strategies activists choose to support or oppose them. Nevertheless, the conditions that explain why some strategies are prioritised over others are not evident. In Peru, the 2013 debate over civil unions prompted a strategic shift in which the conservative wing started to benefit from intensive street mobilisation strategies. Why did this change occur? We argue that a deeply divided electoral competition and the decay of the Catholic Church's moral authority favoured this outcome. This article analyses the trajectory of these strategies over time to identify the conditions that contributed to the shift.     

Measuring Party Strength: A New Systematic Framework Applied to the Case of German Parties, 1991–2013

An appropriate quantitative measurement of party strength is an essential precondition to any further qualitative assessment of partisan influence. The existing literature offers a number of individual indicators but fails to integrate them into a coherent systematic framework. This article fills that gap by proposing a new multi-dimensional and multi-level framework model to operationalise and measure party strength. The soundness of the approach is tested on the case of the evolution of German parties between 1991 and 2013.     

Metal objects mapping after small charge explosions. A study on AISI 304Cu steel with two different grain sizes

Evidence of exposure of a metal component to a small charge explosion can be detected by observing microstructural modifications; they may be present even if the piece does not show noticeable overall plastic deformations. Particularly, if an austenitic stainless steel (or another metal having a face-centered cubic structure and a low stacking fault energy) is exposed to an explosive shock wave, high-speed deformation induces primarily mechanical twinning, whereas, in nonexplosive events, a lower velocity plastic deformation first induces slip. The occurrence of mechanical twins can be detected even if the surface is damaged or oxidized in successive events. In the present research, optical metallography (OM) and scanning electron microscopy (SEM), and scanning tunneling microscopy (STM) were used to detect microstructural modifications caused on AISI 304Cu steel disks by small-charge explosions. Spherical charges of 54.5 or 109 g TNT equivalent mass were used at explosive-to-target distances from 6.5 to 81.5 cm, achieving peak pressures from 160 to 0.5 MPa. Explosions induced limited or no macro-deformation. Two alloy grain sizes were tested. Surface OM and SEM evidenced partial surface melting, zones with recrystallization phenomena, and intense mechanical twinning, which was also detected by STM and X-ray diffraction. In the samples' interior, only twins were seen, up to some distance from the explosion impinged surface and again, at the shortest charge-to-sample distances, in a thin layer around the reflecting surface. For forensic science locating purposes after explosions, the maximum charge-to-target distance at which the phenomena disappear was singled out for each charge or grain size and related to the critical resolved shear stress for twinning.     

Case report of a homicide by a shotgun loaded with unusual ammunition

Reported is the case of a man killed by a neighbor with a shotgun loaded with a unusual ammunition. The cartridge contained several shots chained together by metallic wires. Such ammunition has been used for hunting purposes but is now banned, so it can be handmade only. The joined pellets produce a wound with features that are different from those of a wound made by a regular load of pellets. Several interpretive problems are caused by the unknown number of pellets contained in the shell and the effects of the wire holding the shot together.     

Platforms, media and voters

The paper presents data on party platforms, political communication and public opinion in the 1996 Italian election campaign. It is shown that the electoral platforms of the two major coalitions were largely overlapping, except for some economic and social issues. The centre–right coalition seemed more inclined to adopt pro–market policies, while the platform of the Ulivo coalition was more oriented toward a social partnership approach. In the month before the elections, policy issues were discussed on television more extensively than political issues. Public and private networks covered the 1996 election campaign at the same level as in 1994 and to some extent with the same bias. Voting intentions seem to have remained stable prior to and during the electoral campaign.     

Estimation of the time since death: sudden increase of ambient temperature

This work presents a procedure for the postmortem interval estimation in the presence of a rapid increase of ambient temperature occurred during the cooling phase. The resulting disturbance produced on the cooling curve is proved to obey a two-exponential law and is removed from the actually measured body temperature. This yields a theoretical/modified body temperature, which enables the estimation of the time since death by means of the standard Nomogram method.     

The economics of collective knowledge and technological communication

Technological knowledge can be understood as a collective good when it is the outcome of the integration between internal to the firm investments in R&D and learning and the absorption of competencies and technologies provided by external organizations (such as, other firms, universities, R&D centers). Technological communication is a crucial strategy in such dynamic interaction between the firm and the system. Only under effective conditions of technological communication the private and social benefits derived from the exploitation of spillovers are higher than the private losses due to partial inappropriability. The article presents a simple microeconomic framework to understand knowledge production and distribution, integrating the effects and conditions of technological communication within a knowledge production function. The interaction between internal investments in R&D and learning, partial inappropriability, the conditions for the access to external knowledge and the exploitation of spillovers explains increasing returns in the production of knowledge.