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- Radium - from discovery to the present day – narrative reviewPublication . Charkiewicz, Angelika Edyta; Djuricic, Ivana; Todorovic, Vanja; Nikliński, Jacek; Conceição, Jaime; Djordjevic, BrizitaFollowing its discovery, radium was initially promoted as a therapeutic agent for a wide range of conditions, including skin disorders, allergies, visual problems, joint pain, and as a general health-enhancing remedy. However, subsequent research demonstrated its significant radiological toxicity and harmful effects on human health. Despite these risks, more than a century after its discovery, certain radium isotopes continue to have limited medical applications, particularly in the treatment of specific cancers. Following ingestion, radium is absorbed into the body and behaves similarly to calcium, resulting in its deposition in bone tissue. A proportion of absorbed radium is eliminated through feces and urine, while the remaining fraction may persist in the skeleton and contribute to long-term internal radiation exposure. The severity and onset of adverse health effects are closely related to the absorbed dose and duration of exposure. Chronic exposure to elevated radium levels has been associated with hematological abnormalities, cataracts, dental and jaw damage, bone cancer, and increased mortality. Advances in radiobiology, radiation protection, and personalized medicine continue to improve the safety and effectiveness of radiation-based treatments. Modern radiotherapy, including selected applications involving targeted radionuclide therapy, requires a detailed understanding of radiation dose distribution, biological responses, and patient-specific factors. The optimization of re-irradiation strategies remains an important clinical challenge that requires careful assessment of previous radiation exposure, tissue tolerance, and potential risks. Because radium exposure can occur through ingestion, inhalation, or dermal contact, continued monitoring, appropriate regulatory frameworks, and access to specialized analytical methods remain essential components of public health protection. International cooperation and strengthened surveillance programs are needed to ensure the safe management of radium-containing materials and minimize potential health risks.
- The geochronological landscape of Mozambique: absolute dates from archaeological and palaeoenvironmental contextsPublication . Bicho, Nuno; Gomes, Ana; Skosey-LaLonde, Elena; Raja, MussaThis paper presents a systematic review of absolute dating data from Mozambique, drawing on a compiled database of 442 dates from 69 sites. The dataset spans archaeological and palaeoenvironmental contexts and encompasses dates ranging from the present day to close to a half a million years ago, covering the whole of the Holocene and part of the Middle and Upper Pleistocene. The most widely used dating method is radiocarbon (AMS and original), followed by luminescence techniques (OSL variants and pIRIR), electron spin resonance (ESR), uranium-series and cosmogenic nuclide dating. More than 250 dates belong to archaeological contexts distributed across four cultural phases — the Ceramic Phase, the Later Stone Age, the Middle Stone Age and the Early Stone Age — while the remaining entries come from palaeoenvironmental contexts. Regionally, the southern provinces of Inhambane, Gaza and Maputo are the most densely sampled, followed by the central region (Zambezia, Tete, Sofala and Manica) and lastly the northern region (Cabo Delgado, Niassa and Nampula). These distributions are discussed in the light of research history and the chronological resolution offered by each method. Significant gaps are identified in the geochronological coverage of Mozambique that call for targeted future investigation.