Isolation and identification of an isomeric sildenafil analogue as an adulterant in an instant coffee premix

The proliferation of adulterated health foods and beverages in the market demands a comprehensive analytical strategy to identify the adulterants, particularly those of isomeric phosphodiesterase 5 (PDE5) inhibitors. An instant coffee premix (ICP) purchased from an online retailer was flagged for suspected adulteration through PDE5 inhibition assay. The ICP was then analysed using suspected-target and non-targeted screenings of a liquid chromatography-quadrupole time-of-flight mass spectrometry. Based on these findings, a PDE5 inhibitor initially assigned as compound X was isolated from the ICP by employing a liquid chromatography-diode array detection before its structural elucidation with liquid chromatography-ultraviolet (LC-UV) spectroscopy and nuclear magnetic resonance (NMR) spectroscopy. The suspected-target screening matched the protonated molecule ([M + H]⁺) precursor ion of compound X at m/z 499.2310 with two suspected analytes that are structural isomers of one another. The fragmentation patterns of compound X were comparable to those analogues in the dithiocarbodenafil group through the non-targeted screening. These findings, complemented by the LC-UV and NMR spectroscopy data, together with the chromatographic separation of related structural isomers, conclude the identity of compound X. To our best knowledge, this is the first study to report the presence of 3,5-dimethylpiperazinyl-dithiodesmethylcarbodenafil in an ICP sample.

Key points

• The herbal-based male sexual performance products’ lucrative market has instigated their rampant adulteration, particularly with PDE5 inhibitors.
• The adulterated products may also contain analogues of the approved PDE5 inhibitors, which usually passed into the market undetected as they are not included in the routine targeted screening procedure.
• The present study detected, isolated, and identified an isomeric sildenafil analogue from an instant coffee premix sample using rapid qualitative assay and comprehensive analytical analysis.
• This paper highlighted the applicability of the established strategies for routine casework, particularly in a forensic drug testing laboratory.

     

The impact of license plate recognition technology (LPR) on trust in law enforcement: a survey-experiment

Objectives

We examine the extent to which individuals' knowledge of an advanced police technology (license plate recognition or "LPR") may impact perceptions of police. Technologies with the capacity to track individuals' movements are becoming increasingly common in police practice. Although these technologies may yield positive benefits, their use may also heighten community concerns about increased surveillance, data storage, and data security, thereby potentially negatively impacting community-police relationships.

Methods

We utilize a survey-based experiment with randomized assignment of participants (n=405) to investigate the impact of individuals' knowledge of LPR use on a variety of police perceptions, including trust in police, community approval, respect for citizens, and respect for individual rights.

Results

Most respondents were unaware of LPR use prior to the survey. When compared with a control group, respondents who encountered brief mentions of LPR functions on the survey expressed significantly lower levels of trust in police. Additionally, "strong agreement" with other positive statements about police also appears to have declined in this sample in response to LPR information. Notably, the sample contained high pre-existing levels of trust and support for police, factors which may have moderated the impacts of LPR information.

Conclusions

These results support the hypothesis that awareness of LPR use may negatively impact perceptions of police, including trust in police. More generally, although technologies like LPR represent technological innovations, they may also yield unintended consequences, including the potential to undermine police-community relations if adoption decisions are not accompanied by sufficient transparency or community support.

     

Reading level and the prevalence of a dyslexic profile among patients in a forensic psychiatric clinic

This study aims to investigate Swedish language reading ability of forensic patients and the number of them that present a dyslexia profile. Another aim is to compare the reading level in different subtypes of psychiatric diagnoses. Assessments were made of 185 patients by a battery of reading tests. They were also interviewed about their schooling and their self-estimated reading and writing ability. The results show that the patients’ reading level is below average for grade six children in Swedish compulsory school, and that 16 per cent show a dyslexic profile. Male patients with an immigrant background and a diagnosis of psychosis and anxiety disorders perform the lowest when measuring literacy skills. This proportionately low reading ability can cause difficulties in understanding texts as presented in broadsheet newspapers, civic information and patient records, and might even jeopardize the understanding of adult spoken language.     

Mandate, Independence and Funding: Resolution of a Protracted Struggle Between Parliament and the Executive Over the Powers of the Australian Auditor-General

This paper examines a political struggle in the Australian federal sphere over parliament's right, exercised through the Office of the Auditor-General, to oversee the accounts and management practices of the executive and entities created by legislation to deliver public services. The period from the early 1970s witnessed a dramatic shift in the method of delivering government services to the community and an increasing attention to economy, efficiency and effectiveness in their administration and delivery. The Australian government has increasingly used private sector organisational models and modern management and accounting practices to deliver a wide range of services. The rise of these 'new public management' practices resulted in an erosion of traditional parliamentary oversight of government management and reporting activities. This historical analysis is based upon Porter's (1981) processual analytical framework. The analysis focuses on the action of groups such as the executive, parliamentary committees and the Office of the Auditor-General as evidenced in documents produced in response to critical events. Models developed by Funnell and Cooper (1998) are used to characterise the transition of public sector audit from a traditional administrative model to a corporatist model.     

The New Economy,Class Condescension and Caring Labour: Changing Formations of Class and Gender

An argument about the declining significance of class and gender as structural constraints in British society has become common in mainstream sociological theory. Mobility, reflexivity, and detraditionalization are seen as key characteristics of a post‐Fordist, post‐structural society. In feminist theory, however, debates about the reconstitution of class and gender, as well as the symbolic meaning of class, challenge assumptions about detraditionalization. I assess these arguments through an exploration of the consequences of women's changing labour market position and the contradictions between employment and caring responsibilities. I argue that emerging class differences and widening inequalities between women, as well as new class relationships in the home, should be explored further.     

Perspectives of Mothers,Fathers, and Parenting Coordinators Concerning the Process and Impact of Parenting Coordination

In a small pilot study, 31 interviewees, including 12 parenting coordinators, 11 mothers, and 8 fathers representing 14 different parenting coordination cases retrospectively described child and family functioning both pre‐ and post‐parenting coordination in phone interviews. They also detailed how often and how well different issues that arose during the parenting coordination work (acrimony, problem‐solving communication, triangulation of the child into the conflict) were actively addressed. Parties tended to view coparenting more positively when reflecting on post‐ compared with pre‐intervention, but reported less change in child adjustment. Discrepancy among same‐case informant reports was common. Parenting coordinators (PCs) consistently rated their interventions as more frequent and successful than did parents. Mothers and fathers largely disagreed on interventions they experienced. While this small N pilot can offer no definitive conclusions, it underscores need for research and wisdom in including both parents' perspectives.     

An Examination of the Effects of Personal and Workplace Variables on Correctional Staff Perceptions of Safety

American Journal of Criminal Justice - Research on victimization has progressed dramatically over the last four decades. This research has identified important individual and contextual predictors...