The Influence of New Technologies on the Visual Attention of CSIs Performing a Crime Scene Investigation

Currently, a series of promising new tools are under development that will enable crime scene investigators (CSIs) to analyze traces in situ during the crime scene investigation or enable them to detect blood and provide information on the age of blood. An experiment is conducted with thirty CSIs investigating a violent robbery at a mock crime scene to study the influence of such technologies on the perception and interpretation of traces during the first phase of the investigation. Results show that in their search for traces, CSIs are not directed by the availability of technologies, which is a reassuring finding. Qualitative findings suggest that CSIs are generally more focused on analyzing perpetrator traces than on reconstructing the event. A focus on perpetrator traces might become a risk when other crime‐related traces are overlooked, and when analyzed traces are in fact not crime‐related and in consequence lead to the identification of innocent suspects.     

Preference for the Diversity Policy Label Versus the Affirmative Action Policy Label

Study 1 assessed associations with the labels “diversity policy” (DP) and “affirmative action policy” (AAP) and perceptions of potential policy components. Student and community participants (N = 143) completed a survey assessing associations with one of the policy labels. Both policies evoked similar associations such as “race/minorities” and “equality/equal opportunity,” but the AAP was more often associated with “bias/inequality/discrimination,” “unfairness,” and “racism/prejudice.” When rating potential policy components, reverse discrimination was considered more likely under the AAP. In Study 2 we explored the evaluation of equivalent policy components associated with different policy labels. Student participants (N = 126) rated the policy labeled as the DP more favorably than the AAP. Both studies suggest more favorable attitudes toward the DP label.     

Review of analytical methods for screening and quantification of fentanyl analogs and novel synthetic opioids in biological specimens

Fentanyl, fentanyl analogs, and other novel synthetic opioids (NSO), including nitazene analogs, prevail in forensic toxicology casework. Analytical methods for identifying these drugs in biological specimens need to be robust, sensitive, and specific. Isomers, new analogs, and slight differences in structural modifications necessitate the use of high-resolution mass spectrometry (HRMS), especially as a non-targeted screening method designed to detect newly emerging drugs. Traditional forensic toxicology workflows, such as immunoassay and gas chromatography mass spectrometry (GC–MS), are generally not sensitive enough for detection of NSOs due to observed low (sub-μg/L) concentrations. For this review, the authors tabulated, reviewed, and summarized analytical methods from 2010–2022 for screening and quantification of fentanyl analogs and other NSOs in biological specimens using a variety of different instruments and sample preparation approaches. Limits of detection or quantification for 105 methods were included and compared to published standards and guidelines for suggested scope and sensitivity in forensic toxicology casework. Methods were summarized by instrument for screening and quantitative methods for fentanyl analogs and for nitazenes and other NSO. Toxicological testing for fentanyl analogs and NSOs is increasingly and most commonly being conducted using a variety of liquid chromatography mass spectrometry (LC–MS)-based techniques. Most of the recent analytical methods reviewed exhibited limits of detection well below 1 μg/L to detect low concentrations of increasingly potent drugs. In addition, it was observed that most newly developed methods are now using smaller sample volumes which is achievable due to the sensitivity increase gained by new technology and new instrumentation.     

‘Like gold with yield’: evolving intersections between farmland and finance

Since 2007, capital markets have acquired a newfound interest in agricultural land as a portfolio investment. This phenomenon is examined through the theoretical lens of financialization. On the surface the trend resembles a sort of financialization in reverse – many new investments involve agricultural production in addition to land ownership. Farmland also fits well into current financial discourses, which emphasize getting the right kind of exposure to long-term agricultural trends and ‘value investing’ in genuinely productive companies. However, capital markets' current affinity for farmland also represents significant continuity with the financialization era, particularly in the treatment of land as a financial asset. Capital gains are central to current farmland investments, both as a source of inflation hedging growth and of potentially large speculative profits. New types of farmland investment management organizations (FIMOs) are emerging, including from among large farmland operators that formerly valued land primarily as a productive asset. Finally, the first tentative steps toward the securitization of farmland demonstrate the potential for a much more complete financialization of farmland in the future.     

Effets de l'irradiation X sur les chenilles de Bombyx mori dans diverses conditions d'alimentation et de jeune

Résumé Nous modifions le cycle nutritionnel des chenilles deBombyx mori, durant les premières 24 heures des deux premiers ages larvaires, avant ou après irradiation X. La chenille avant toute alimentation est très radiorésistante, le je?ne ne modifie pas cette radiorésistance. Suivant le moment du cycle physiologique (lorsque celui-ci est enclenché) où le je?ne est imposé, il diminuera ou augmentera la radiosensibilité des chenilles.

---

Summary Silkworms (Bombyx mori) were exposed to irradiation in the 1st and 2nd larval instars. The effects, as indicated by mortality or by failure to moult, were studied in relation to a period of starvation (24 h at 22°). Before the initiation of feeding, in either instar, the larvae were very resistant to irradiation; and fasting did not modify this resistance. Probably this was due to physiological quiescence. After the initiation of feeding, the interposition of a fast either augmented or decreased radiation tolerance, probably according to the phase of the physiological cycle involving feeding and moulting.

     

Documents received

B.A., University of Pennsylvania 1971; J.D., Rutgers University 1987.