Publications by authors named "P P Moiseev"
Treelines advance due to climate warming. The impacts of this vegetation shift on plant-soil nutrient cycling are still uncertain, yet highly relevant as nutrient availability stimulates tree growth. Here, we investigated nitrogen (N) and phosphorus (P) in plant and soil pools along two tundra-forest transects on Kola Peninsula, Russia, with a documented elevation shift of birch-dominated treeline by 70 m during the last 50 years.
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- Research discusses how current global climate models are based on air temperatures but fail to capture the soil temperatures beneath vegetation where many species thrive.
- New global maps present soil temperature and bioclimatic variables at 1-km resolution for specific depths, revealing that mean annual soil temperatures can differ significantly from air temperatures by up to 10°C.
- The findings indicate that relying on air temperature could misrepresent climate impacts on ecosystems, especially in colder regions, highlighting the need for more precise soil temperature data for ecological studies.
Article Synopsis
- Climate warming is expected to raise treelines by increasing temperatures and extending the growing season, but there's limited data on how this will affect tree growth on an annual basis.
- A study using tree-ring data from Eurasia and the Americas found that while temperature and growth rates were positively linked during the 20th century, this relationship varies based on tree age and other local factors.
- Future simulations predict that as the growing season continues to lengthen in the 21st century, tree growth may become less reliant on temperature increases, potentially influencing ecosystem dynamics in cold regions and altering responses to climate change.
Even 30 years after the accident, an association between breast cancer incidence and ionizing radiation exposure from Chernobyl fallout remains uncertain. We studied breast cancer incidence in the most contaminated regions of Belarus (Gomel and Mogilev) and Ukraine (Kyiv, Zhytomyr and Chernihiv) before (1978-1986) and after (1987-2016) the accident. Breast cancer cases and female population size data were received from the national cancer registries and the state departments of statistics.
View Article and Find Full Text PDF[The study of diagnostic capabilities of somatosensory evoked potentials in patients with neurogenic urinary retention].
Zh Nevrol Psikhiatr Im S S Korsakova
October 2019
Objective: To study diagnostic capabilities of somatosensory evoked potentials (SSEP) in clarifying the mechanisms of formation of urinary disorders.
Material And Methods: The authors studied the characteristics of nerve impulses during stimulation of the pudendal and tibial nerves in patients with neurogenic urinary retention and cerebral ischemic stroke in the parietal lobes (4 patients), spinal ischemic stroke (10 patients), myelitis at the level of thoracic segments (7 patients), spinal cord cauda equina tumors (3 patients).
Results And Conclusion: The study of SSEPs made it possible to determine the localization and nature of damage to the structures of the central nervous system and to establish the neurogenic cause of urinary disorders.