Correction to: The Public Power of Judgement: Reasonableness Versus Rationality—Setting the Ball Rolling

International Journal for the Semiotics of Law - Revue internationale de Sémiotique juridique - In the original publication of the article, the paragraph beginning “We begin with two...     

Determination of drug levels and the effect of diazepam on the growth of necrophagous flies of forensic importance in southeastern Brazil.

Larvae of Chrysomya albiceps (Wiedemann) and Chrysomya putoria (Wiedemann) (Diptera: Calliphoridae) were reared on tissues from rabbits administered twice the lethal dosage of diazepam in order to study the effects of this drug on the development of these two species. The rabbits were given 50mg of diazepam via ear vein infusion. From 18 to 54h, larvae feeding on tissues containing the drug developed more rapidly than larvae from the control colony for both fly species. The time required for pupariation and adult emergence was significantly greater for colony fed on tissues from diazepam dosed rabbits than for the control ones. These differences are significant for they are large enough to alter the estimate of postmortem interval based on fly development. The presence of diazepam could be detected through gas chromatography-mass spectrometer (GC-MS) in all rabbit samples and in almost all diptera samples in this experiment.     

Law’s Cultural Project and the Claim to Universality or the Equivocalities of a Familiar Debate

Do our present circumstances allow us to defend a specific connection (that specific connection) between ?legal rules?, ?moral claims? and ?democratic principles? which we may say is granted by an unproblematic presupposition of universality or by an ?acultural? experience of modernity? In order to discuss this question, this paper invokes the challenge-visée of a plausible reinvention of Law??s autonomous project (a reinvention which may be capable of critically re-thinking and re-experiencing Law??s constitutive cultural-civilizational originarium in a ?limit-situation? such as our own). The discussion is developed by recognising that the claim to universality is not only incompatible with a substantive conception of juridicalness as validity but also sustained with difficulty by a procedural representation of discourse and rationality (a representation which, against its own conclusion-claims, could also be said to be culturally and civilizationally bounded). Not forgetting some specific features of contemporary juridical pluralism??namely that which emerges from the counterpoint between semiotic groups or interpretative communities (and their differently assumed claims of intersemioticity concerning the signifier law)??this train of reflection diagnoses briefly a sequence of complementary main difficulties (as ?obstacles? to recognising Law??s demand as an unmistakable cultural project), namely those arising from the formalistic normativistic inheritance (confounding legal autonomy with isolationism), from the challenges and seductions of practical holism (justifying a continuum in which Law??s project loses its sense and autonomy), and also from the familiar debate between exclusive and inclusive versions of positivism and non-positivism (a debate which establishes-consecrates an equivocal counterpoint between Law and Morality).     

Seasonality of insect succession and pig carcass decomposition in a natural forest area in southeastern Brazil

In this study, successional patterns, relative abundance of larvae and adults of sarcosaprophagous insects, carcass decay, diversity and seasonality of species, and their potential as forensic indicators were studied. Four experiments were carried out in each season in a natural area of southeastern Brazil. Two pigs (Sus scrofa L.) were used in each experiment and were exposed to sunlight and shade, respectively. The Calliphoridae outnumbered the Sarcophagidae in specimens collected and reared from the carcasses. More insects were collected from carcasses exposed to the sun, while a larger number of specimens were reared from those in the shade. Temperature and rainfall influenced the stages of carcass decay and insect activity and abundance. Chrysomya albiceps was the most abundant species in all four experiments. The carcasses were used as a protein source and substratum for oviposition. The dark putrefaction and fermentation stages yielded more flies than the other stages. These results show that flies are important in carcass decay and are, therefore, also of forensic importance. Seven species can be considered valuable forensic indicators in Southeastern Brazil. However, only three species were useful as forensic indicators in wooded areas: P. intermutans, H. segmentaria, and H. semidiaphana.     

The Public Power of Judgement: Reasonableness Versus Rationality—Setting the Ball Rolling

International Journal for the Semiotics of Law - Revue internationale de Sémiotique juridique - The chief concern of the paper is to initiate discussion on the difference between the private...     

The Rehabilitation of Practical Reasoning and the Persistence of Deductivism: An Impossible Challenge?

International Journal for the Semiotics of Law - Revue internationale de Sémiotique juridique - Exploring certain specific dimensions of practical reasoning in law—namely the possibility...     

Editorial

International Journal for the Semiotics of Law - Revue internationale de Sémiotique juridique -     

The Effect of Buscopan® on the Development of the Blow Fly Chrysomya megacephala (F.) (Diptera: Calliphoridae)

Abstract:  This work investigated the effects of butylscopolamine bromide, a drug present in the pharmaceutical formulation Buscopan^®, on the development of Chrysomya megacephala , a blow fly species of considerable forensic and medical importance in Brazil. Larvae exposed to the drug showed a decreased rate of development, with higher drug concentrations further retarding the development. Besides, larvae reared on the presence of the drug showed smaller body weight and body length when compared with larvae reared on the absence of Buscopan^®. The drug also affected the mortality of the species.     

Standardization of Histological Procedures for the Detection of Toxic Substances by Immunohistochemistry in Dipteran Larvae of Forensic Importance

Immunohistochemistry (IHC) technique is an alternative toxicological analysis to detect drugs in insects of forensic importance, but it requires thorough histological procedures. In this study, we tested different fixatives—phosphate‐buffered paraformaldehyde 4% (PP), Carnoy's fluid (CF), Kahle's solution (KS), ethanol in different concentrations, and ethanol associated to PP and CF, time of fixation and histological processes for dipteran larvae's tissue, aiming to develop a sample preparation protocol for IHC application. A suitable fixation was achieved using PP for 12 and 24 h, CF for 3 h, 70% ethanol for 19 days, and 70% ethanol/CF for 2 h/3 h. Postfixation using negative pressure, two immersions in xylene for 30 min each, and one in xylene plus paraffin for 45 min increased tissue preservation. An immunohistochemical test for cocaine detection was performed using monoclonal benzoylecgonine antibody from mouse, peroxidase‐conjugated anti‐mouse IgG and visualized by 3,3′‐diaminobenzidine method showed these histological procedures didn't compromise antigenicity.