Immobilization of Chromium by Iron Oxides in Nickel-Cobalt Laterite Mine Tailings.

Mine tailings generated from hydrometallurgical processing of nickel-cobalt laterite deposits contain high levels of chromium (Cr), with the hexavalent species being a toxic pollutant and carcinogen. However, the partitioning, speciation, and local bonding environment of Cr in the mine tailings remain largely unknown, hindering our ability to predict its toxicity and long-term behavior. Coupling detailed mineralogical, spectroscopic, and geochemical characterization with sequential extraction of tailings from active and rehabilitated dams, we show that Cr is present in its least toxic form, Cr(III), and largely immobilized by recalcitrant minerals.

Gender differences in ADHD and impulsivity among alcohol or alcohol- and cocaine-dependent patients.

Background: Impulsivity plays a fundamental role in the realm of addiction as is considered a risk factor for addiction. Moreover, it influences the age of onset, severity, and therapeutic management of addictions. The aim of this study was to explore measures of impulsivity in a cohort of male and female diagnosed with Alcohol Use Disorder (AUD) and contrast these findings with those from a group with Alcohol and Cocaine Use Disorder (ACUD).

A look into telepsychology in the Philippines: an exploratory-cross-sectional research.

The debate surrounding telepsychology and its integration into professional practice remains a critical issue. This study explores telepsychology in the Philippines, focusing on its acceptance, appropriateness, and feasibility during the COVID-19 pandemic. Employing an exploratory cross-sectional research design, data were collected through an online survey using purposive sampling.

A mixed-methods preliminary evaluation of an innovative treatment for cervical precancer in El Salvador's screen-and-treat program.

Background: Cervical cancer remains a leading cause of cancer death for women worldwide. Screen-and-treat programs are a key strategy to reduce disease burden in low and middle-income countries (LMICs). Thermal ablation (TA) has emerged as a portable alternative to cryotherapy, the treatment typically used in screen-and-treat initiatives.

Sponge Morphology of Osteosarcoma Finds Origin in Synergy Between Bone Synthesis and Tumor Growth.

Osteosarcoma is medically defined as a bone-forming tumor with associated bone-degrading activity. There is a lack of knowledge about the network that generates the overproduction of bone. We studied the early stage of osteosarcoma development with mice enduring a periosteum injection of osteosarcoma cells at the proximal third of the tibia.