Open-domain question answering (OpenQA) is one of the most challenging yet widely investigated problems in natural language processing.It Slot Car aims at building a system that can answer any given question from large-scale unstructured text or structured knowledge-base.To solve this problem, researchers traditionally use information retrieval met
Demographic crisis as destabilizing factor of region development
Factors and tendencies regarding demography dynamics of Tambov oblast’ within the last seventy years, Extractors based on the Russian Statistics Office, are analyzed.The considered time period may be roughly divided into three ones, including the Soviet time period (1959–1991), the 1990s reforms (1991–2000), and the current time period (2001�
Inflammatory mediators and lung abnormalities in HIV: A systematic review.
HIV and pneumonia infections have both been shown to negatively impact lung function.However, evidence of the role of inflammation on lung dysfunction in HIV and pneumonia co-infected individuals remains limited.We aimed to systematically review the association of inflammatory markers and lung abnormalities in HIV and pneumonia co-infected individu
A singular PpaA/AerR-like protein in Rhodospirillum rubrum rules beyond the boundaries of photosynthesis in response to the intracellular redox state
ABSTRACT Photosynthesis (PS) in purple non-Sulfur bacteria (PNSB) is strictly controlled to avoid energy consumption and to prevent oxidative stress when oxygen is present.PpsR, a transcriptional repressor encoded in the photosynthesis gene cluster (PGC), is one of the main players in the regulation of PS-related genes.In some cases, PpsR does not