Advances in the characterisation and identification of mastic ( sp.) resin in archaeological samples by GC-QToF-MS.

The optimisation and application of an analytical method based on gas chromatography coupled to quadrupole time-of-flight mass spectrometry (GC-QToF-MS) is proposed for the first time for the characterisation and identification of mastic ( sp.) resin in archaeological samples. The GC-QToF-MS method demonstrated higher sensitivity compared to single quadrupole GC-MS and enabled enhanced structural elucidation power to be exploited, particularly due to the high mass resolution and accuracy, the possibility to use standard and low ionisation energies as well as its tandem MS capabilities.

Reshaping Egyptian funerary ritual in colonized Nubia? Organic characterization of unguents from mortuary contexts of the New Kingdom (c. 1550-1070 BCE).

Samples taken from the canopic jars of Djehutyhotep, chief of Tehkhet (Debeira), Lower Nubia, and local versions of Egyptian canopic jars from Sai, Upper Nubia, suggest that the materials used for mortuary ritual unguents in Nubia may have differed from those used in Egypt. Nubian samples consisted of plant gum and bitumen, whereas those from Egypt conformed to the standardizing black resinous liquid recipe used for mummification and other funerary rituals. However, there may be time frame issues to be considered as most samples analyzed from Egypt date to later periods.

Links Between Childhood Abuse, Insidious Trauma, and Methamphetamine Use Across the Lifespan Among Gay, Bisexual, and Other Men Who Have Sex with Men: A Qualitative Analysis.

Developmental and lifespan examinations of methamphetamine use among gay, bisexual, and other men who have sex with men (GBM) remain limited. We used a feminist trauma framework to examine potential links between childhood trauma, trauma-related stressors, and methamphetamine use among GBM. From June 2018 to October 2018, semi-structured interviews ( = 33) were conducted with GBM across British Columbia.

Does Treatment Readiness Shape Service-Design Preferences of Gay, Bisexual, and Other Men Who Have Sex with Men Who Use Crystal Methamphetamine? A Cross Sectional Study.

Crystal methamphetamine (CM) disproportionately impacts gay, bisexual, and other men who have sex with men (gbMSM). However, not all gbMSM are interested in changing their substance use. The present study aimed to examine whether participant-preferred service characteristics were associated with their readiness to change.

Perceived difficulty of getting help to reduce or abstain from substances among sexual and gender minority men who have sex with men (SGMSM) and use methamphetamine during the early period of the COVID-19 pandemic.

Background: This study examined the perceived difficulty of getting help with substance use among sexual and gender minorities who have sex with men (SGMSM) who use methamphetamine during the early COVID-19 period.

Methods: SGMSM, aged 18+, who reported sex with a man and methamphetamine use in the past 6 months were recruited to complete an online survey using online advertisements. Ordinal regression models examined predictors of greater perceived difficulty of getting help.