Adaptation of a DBT Intervention to Reduce Self-harm in Borderline Personality Disorder

Borderline Personality Disorder (BPD) is characterized by instability that often leads to Non-Suicidal Self-Injury (NSSI) and greater healthcare utilization. Dialectical Behavioral Therapy (DBT) is useful although its long duration and the need for specialized therapists make it difficult to implement in low-resources settings, so brief interventions can complement DBT. The objective of the present study was to undertake cultural adaptation of a Brief, Manualized Intervention to reduce NSSI in the Mexican population with BPD. An experimental design with a single-case pilot study with replicas was used with seven women with a BPD diagnosis. Five to six online sessions were implemented and emotional dysregulation, experiential avoidance and NSSI were measured weekly. NAP index was calculated to assess the effect of the intervention. Most participants showed a large effect size in reducing NSSI and a moderate effect size in reducing emotional dysregulation. Moderate and small effect sizes were obtained in experiential avoidance. The intervention adapted and validated seems to be useful and serve as an additional therapeutically tool to complement usual treatment of patients with BPD (AU)

Experimental and theoretical studies suggesting the possibility of metallic boron nitride edges in porous nanourchins.

We first describe the synthesis of novel and highly porous boron nitride (BN) nanospheres (100-400 nm o.d.) that exhibit a rough surface consisting of open BN nanocones and corrugated BN ribbons. The material was produced by reacting B2O3 with nanoporous carbon spheres under nitrogen at ca. 1750 degrees C. The BN nanospheres were characterized using scanning electron microscopy, high-resolution electron microscopy, and electron energy loss spectroscopy. The porous BN spheres show relatively large surface areas of ca. 290 m2/g and exhibit surprisingly stable field emission properties at low turn-on voltages (e.g., 1-1.3 V/microm). We attribute these outstanding electron emission properties to the presence of finite BN ribbons located at the surface of the nanospheres (exhibiting zigzag edges), which behave like metals as confirmed by first-principles calculations. In addition, our ab initio theoretical results indicate that the work function associated to these zigzag BN ribbons is 1.3 eV lower when compared with BN-bulk material.