Deliberate self harm

SALDI Substrate-Based FeNi Magnetic Alloy Nanoparticles for Forensic Analysis of Poisons in Human Serum

In this study, FeNi magnetic alloy nanoparticles (MANPs) were employed for the forensic analysis of four poisons—dimethametryn, napropamide, thiodicarb, and strychnine—using surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS). FeNi MANPs were prepared via coprecipitation using two reducing agents, sodium borohydride (NaBH4) and hydrazine monohydrate (N2H4·H2O), to optimize the prepared MANPs and investigate their effect on the performance of SALDI-MS analysis. Thereafter, SALDI-MS analysis was carried out for the detection of three pesticides and a rodenticide. The prepared substrate offered sensitive detection of the targeted analytes with LOD values of 1 ng/mL, 100 pg/mL, 10 ng/mL, and 200 ng/mL for dimethametryn, napropamide, thiodicarb, and strychnine, respectively. The relative standard deviation (%RSD) values were in the range of 2.30–13.97% for the pesticides and 15–23.81% for strychnine, demonstrating the good spot-to-spot reproducibility of the FeNi substrate. Finally, the MANPs were successfully employed in the analysis of poison-spiked blood serum using a minute quantity of the sample with an LOD of 700 ng/mL dimethametryn and napropamide, 800 ng/mL thiodicarb, and 500 ng/mL strychnine. This study has great potential regarding the analysis of several poisons that may be found in human serum, which is significant in cases of self-harm.

Biting myself so I don't bite the dust: prevalence and predictors of deliberate self-harm and suicide ideation in Azorean youths

Objective:

To characterize non-suicidal self-injury (NSSI) behaviors, methods, and functions as well as suicide ideation in the adolescent population of a Portuguese community in São Miguel Island, Azores. Increasing rates of NSSI behaviors among adolescents have been observed globally, while suicidal behavior has been pointed as a major cause of death during adolescence.

Methods:

A sample of 1,763 adolescents, aged 14 to 22, was randomly drawn from public and private schools and administered a set of self-report questionnaires. Descriptive and regression analyses were used to look for specific relationships and predictors of NSSI and suicide ideation in this isolated community.

Results:

Approximately 30% of youths reported at least one NSSI behavior, a rate that is twice as high as most studies carried out in mainland Portugal and in other European countries. Biting oneself was the most frequent form of NSSI, and NSSI behaviors served predominantly automatic reinforcement purposes (i.e., regulation of disruptive emotional states). NSSI and suicide ideation encompassed different distal and proximal risk factors.

Conclusions:

Exploring and characterizing these phenomena is necessary to provide a better understanding, enhance current conceptualizations, and guide the development of more effective prevention and intervention strategies in youths.

The nature and extent of non-suicidal self-injury in a non-clinical sample of young adults

This study aimed to examine the nature, extent and correlates of non-suicidal self injury (NSSI) in a non-clinical sample of young adults. Two hundred and eleven participants (18-30 years) completed self-report questionnaires assessing history of NSSI, emotional regulation, coping strategies, symptoms of psychopathology, and alcohol use. Of the sample, 43.6% reported engaging in NSSI; approximately 10% engaged in moderate/severe NSSI. Those that reported NSSI reported greater psychopathology, avoidant coping and alcohol use than those who did not self-injure. The extent of these differences was magnified as the severity of NSSI increased. These findings highlight the need to consider any form of NSSI, no matter how mild, as an indication of distress and ineffective coping.

Deliberate self-harm in children: the nurse's therapeutic style

This article examines child health nursing skills in the management of deliberate self-harm in children and young people. In order for education to be effective (i.e. so that it changes practice) it must address the belief systems of the practitioner. It is suggested that such belief systems are embedded in collectively held tribal stories. The more challenging the patient's behaviour, the more powerful the influence of the tribal narrative--possibly as a defensive strategy. The authors outline strategies aimed at increasing the range and depth of the therapeutic response to episodes of self-harm, and outline nursing interventions in the management of self-harming children.