Articles tagged with Africa
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
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Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.
Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.
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Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.
Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.
Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
The NIAID has established a global network of centers for research in emerging infectious diseases, which will investigate spillover potential and prepare for future outbreaks. The network aims to detect new causes of febrile illnesses, develop reagents and diagnostic assays, and study human immune responses.
Scientists have identified over 40 quantitative trait loci associated with 14 traits in cassava, including disease responses and nutritional quality. This discovery aims to improve cassava breeding and provide a powerful tool for breeders.
Scientists link the end of the Green Sahara to a previously unknown megadrought in Southeast Asia, which lasted over 1,000 years and shifted human settlement patterns. The study provides new insights into the impact of climate change on societal adaptations and upheavals.
A new study by the UK Centre for Ecology & Hydrology found that land surface conditions can affect mesoscale convective systems, allowing for more accurate forecasts and up to six hours' warning. This will inform alert systems for communities across Africa, enabling them to better prepare for severe flooding.
The Phase 2 clinical trial will evaluate the safety, immunogenicity, and efficacy of NVX-CoV2373 in approximately 2,650 healthy adults and 240 medically stable HIV-positive adults. The trial aims to provide early data on vaccine protection against Covid-19 in South Africa.
The EAC's MRH initiative has streamlined timelines for medicinal product applications, decreasing from 24 months to 8-14 months. The initiative aims to improve access to quality medicines by harmonizing technical standards and regulatory requirements.
A study by WCS and partners pinpointed the Democratic Republic of Congo, Gabon, Republic of Congo, Cameroon, and Equatorial Guinea as crucial countries for safeguarding biodiversity and intact forests. The analysis combines datasets to highlight regions with high conservation value, guiding national development plans towards sustainabl...
The emergence of artemisinin-resistant malaria parasites in Rwanda marks a major concern for global health. Significant proportions of parasites carrying the R561H mutation have been detected, indicating that these resistant strains can spread between locations and acquire resistance to partner drugs.
Researchers call for integrated management strategy to combat Mimosa diplotricha's impact on crop yields, biodiversity, and local livelihoods. The invasive weed is threatening the region's agricultural productivity and socio-ecological balance.
A new vaccine against RSV could protect infants under six months old against severe illness and death. Infants born to mothers from low- and middle-income countries were particularly well-protected by the vaccine, with hospitalization rates 53% lower for RSV LRTI.
A new study reveals that almost two-thirds of first confirmed COVID-19 cases outside China had travel links to Italy, China, or Iran. The research suggests that travel from these countries may have seeded additional outbreaks globally before the pandemic was characterized.
A monthly vaginal ring containing the antiretroviral drug dapivirine is being considered as a new HIV prevention method for cisgender women in sub-Saharan Africa. The European Medicines Agency has adopted a positive scientific opinion on its use, paving the way for potential approval.
Researchers discovered a shared skeletal structure between African and American crocodiles, suggesting a close evolutionary relationship. This finding proposes that crocodiles migrated from Africa to America, reaching the Americas via Australasia around 7 million years ago.
Researchers identified two major factors: dry climate and city life, which led to the evolution of Aedes aegypti mosquitoes to specialize in biting humans. In regions with intense dry seasons, these mosquitoes showed a strong preference for human hosts.
Researchers from UMD and international partners highlight the urgent issue of African vulture poisoning, which threatens global disease and biodiversity. A coordinated approach leveraging community engagement and pre-existing resources is recommended to maximize conservation impacts.
A study from Binghamton University found that each additional year of school equates to an earnings increase of 18-20% in South Africa. Cognitive skills also play a significant role in determining wages, with memory and orientation being more important in rural areas.
The African Heart Rhythm Association (AFHRA) statement highlights barriers to effective pacing, including skilled implanter shortages and high device costs. Researchers propose solutions, such as improved local training and collaboration with governments to address these challenges.
This latest issue of Cardiovascular Innovations and Applications (CVIA) features groundbreaking research on identification of novel TTN mutations and discovery of digenic mutations. The issue includes studies on the genetic causes of dilated cardiomyopathy and the effects of glycyrrhizic acid on vascular injury.
San communities are marginalized despite living for thousands of years, with weak land tenure protections in Botswana. In contrast, Namibia recognizes their rights through community-based natural resources management and human rights organizations play a crucial role in advocating for their welfare.
Researchers argue that one-sided narratives shape the dichotomy between state-led and market-led approaches to promote agricultural development. A combination of state-led initiatives, donor-funded or market-led approaches, and input subsidy programs can work if there is evidence-based policy learning between both camps.
Researchers discovered that ancient shells were deliberately collected and strung together as beads, with evidence of ochre coloring treatment found on four out of five shells. This study provides insight into the origins of string-making technology, likely between 160-120,000 years ago.
A new Boston University School of Public Health study estimates that remdesivir can increase ICU capacity by over 50%, saving up to 6,862 lives per month. The drug's 'double impact' could save as many as 13,647 South Africans by December.
A Stanford-led study reveals a strong connection between air pollution and infant mortality in sub-Saharan Africa. The researchers found that even small increases in particulate matter concentrations lead to significant increases in infant mortality rates.
A new study warns of rising invasive species threats due to increased pathways and trade, causing significant environmental losses and economic damage. The research highlights the need for urgent action to prevent, detect, and control invaders at local and global levels.
The Suomi NPP satellite analyzed the expansive Saharan dust plume, which extended over 5,000 miles across the Atlantic Ocean and impacted air quality in North and South America. The aerosol particles have significant effects on human health, weather, and climate, including cooling or warming the earth.
A recent study mapped mosquito insecticide resistance patterns across Africa, finding dramatic increases in resistance to five mainstream insecticides between 2005 and 2017. This surge in resistance poses a significant threat to malaria control efforts, particularly in Sub-Saharan Africa where over half of all cases occur.
A new study finds that dose escalation of hydroxyurea treatment for children in Uganda with sickle cell anemia is more effective and has similar side effects than a lower fixed dose. The findings have global implications, removing a major barrier to expanding the use of hydroxyurea worldwide.
A study in the New England Journal of Medicine has found that dose escalation of hydroxyurea treatment is more effective and has similar side effects than a lower fixed dose for children with sickle cell anemia in Uganda. The results have global implications and can potentially improve treatment outcomes worldwide.
A study published in the New England Journal of Medicine has found that dose escalation of hydroxyurea treatment is more effective and has similar side effects than a lower fixed dose for children with sickle cell anemia in Uganda. The findings have global implications and could impact use of hydroxyurea worldwide.
Researchers at Goethe University have successfully produced tsetse fly attractants in genetically modified brewer's yeast, which could be used to contain sleeping sickness. The new production method is cost-effective and environmentally friendly, making it suitable for rural communities in Africa.
Research led by Dr Anthony Romilio found evidence of massive predators in Jurassic-era fossil footprints in southern Queensland. The tracks suggest dinosaurs up to three metres high and 10 metres long roamed the area.
A new study suggests that prehistoric people relied on shellfish to sustain them as they migrated out of Africa, particularly during periods of drought. The availability of these marine mollusks allowed for continuous harvests without major ecological impacts.
A study led by the Max Planck Institute of Geoanthropology found that ancient DNA documents population changes across eastern and southern Africa from the Neolithic to the Iron Age. Genomic analysis revealed complex interactions between hunter-gatherers, pastoralists, and farmers, with varying integration of diverse ancestries.
A conservation biologist reflects on losing species like saiga antelopes and Huemel deer, highlighting the complexities of conservation. She shares her hope for success stories in protected areas like Yellowstone National Park and the importance of focusing on rare species.
Researchers have found evidence of the earliest use of bow-and-arrow technologies in the tropical rainforests of Sri Lanka, dating back to ~48,000 years ago. This discovery challenges traditional assumptions about human innovation and cultural development in extreme environments.
A new project, ITAR, aims to design and develop novel radiotherapy machines for African hospitals, addressing acute shortages of radiotherapy machines. The project will define persistent shortfalls and develop solutions to increase capacity for treating cancer patients in Sub-Saharan Africa.
A new study on extinct camelids provides the first quantitative characterization of their ecomorphology in ancient North American savannas. The analysis reveals that these ecosystems were drier than modern African savannas, leading to a decrease in ungulate diversity.
A study by University of Kent's Durrell Institute of Conservation and Ecology found significant differences in disease risk perception and information channels about Ebola virus disease in rural and urban areas of Guinea. Rural residents mainly received information through awareness-raising missions, while urban respondents used newspa...
KU's Center for Community Health and Development leads a project to monitor and evaluate COVID-19 response activities in 47 African countries. The online COVID-19 Response M&E System captures data on infection-control measures, risk communication, and transmission patterns.
Researchers from GFZ GeoForschungsZentrum Potsdam found that the rotation of the Victoria microplate is controlled by the configuration of weaker and stronger lithospheric regions. They used 3D numerical models to compute the dynamics of the last 10 million years, showing a best fit with GPS-derived data.
A new study found that an indoor residual spray made from volcanic glass is effective in controlling mosquitoes carrying malaria. The spray, called Imergard WP, shows mortality rates of over 80% against both wild and susceptible strains of Anopheles gambiae mosquitoes.
The Hugo Observatory in Belgium coordinates the largest Horizon 2020-funded climate change and migration research project, HABITABLE, worth 6.8 million euros. The project explores how climate change affects migration patterns, introducing a new concept of social tipping points.
The elimination of human African trypanosomiasis as a public health problem is within reach, with fewer than 1,000 new cases reported in 2018. According to the study, the area at moderate or high risk of HAT has shrunk significantly since 2016.
Researchers found most southern right whales visiting South Georgia breed in South America, contrary to previous suspicion. This discovery will help track population recovery and inform conservation strategies.
A new study highlights the emergence of mosquito-borne viral outbreaks in West Africa, including dengue, chikungunya, and Zika viruses. The research emphasizes the need for early warning systems and control measures to prevent infectious outbreaks.
Researchers analyzed fossil hand joints to find evidence of dual hand use in ancient humans. The discovery supports the idea that the transition to walking on two legs was gradual, with early humans using their hands for both precision grips and branch grasping.
Reconstructing the paleoecology of the Paleo-Agulhas Plain reveals a diverse, verdant environment with abundant game and plant species. The lost landscape, which existed around 11,500 years ago, supported megafauna such as giant Cape Buffalo and giraffes.
Fossilized footprints from Africa's largest human collection suggest a division of labor in ancient human communities. The 408 human footprints, dated between 19,100 and 5,760 years ago, indicate that females foraged together while males accompanied them or visited them.
Nearly a quarter of Africa's population will catch coronavirus and up to 190,000 may die unless urgent action is taken. The World Health Organization warns that strained health resources will worsen the impact of the virus.
The study reveals nearly 303 million existing cases of hip and knee osteoarthritis globally, with an estimated prevalence of 3754.2 per 100,000 people. Disability attributed to the condition has risen by nearly 10% since 1990.
Researchers identify thousands of previously rare bouts of extreme heat and humidity worldwide, particularly in the US Gulf Coast region. The study found that these conditions are already appearing, with outbreaks increasing in frequency and intensity, surpassing human survivability limits.
Global health scholars warn of impending crisis in Africa due to slow access to COVID-19 supplies, echoing the experience during the early stages of the HIV/AIDS pandemic. Several African countries have prepared disease response capacities, but geopolitical power struggles hinder supply acquisition.
An interdisciplinary study of three African skeletons found in Mexico City sheds light on the lives of first-generation enslaved Africans. The analysis reveals evidence of forced migration, physical trauma, and the introduction of infectious diseases from Sub-Saharan Africa.
Researchers uncover the lives of three 16th-century African slaves found in a mass burial site in Mexico City, tracing their African origins and physical hardships. They also identify novel pathogens carried by the individuals, shedding light on the early introduction of diseases like hepatitis B virus and yaws to Latin America.
The discovery of Adalatherium, a bizarre mammal from Madagascar, sheds light on the evolution of mammals during the time of dinosaurs. Its unique characteristics and preserved 3D structure offer valuable insights into the geography and fauna of the region.
A recent study by the University of Córdoba has pinpointed the origin of a group of trees growing in Africa to 50 million years ago. The research, which used molecular clock and phylogenetic methods, found that these legume plants diversified in response to climate changes and can be found in various parts of Africa and Madagascar.
The Wits Journal of Clinical Medicine published the first clinical data on COVID-19 in South Africa, covering various aspects of the pandemic. The special issue includes articles on diagnosis, ethics, social dimensions, and herd immunity as a strategy for fighting COVID-19.
Three major African cities show significant reductions in visibility since the 1970s, with Nairobi experiencing the greatest loss, due to increased particulate matter emissions from vehicles and energy generation. PM pollution levels have also increased by 182% in Nairobi, 162% in Kenya, and 62% in Uganda.
A IIASA study reveals sub-Saharan Africa needs to triple its electrification pace to achieve universal access to affordable, reliable energy services by 2030. The region faces a daunting challenge with nearly 570 million people without electricity and limited grid infrastructure in rural areas.
Researchers discovered evidence of milk processing in ancient pottery from east Africa, confirming the story that bones have been telling us about pastoralist societies' way of life. The findings suggest that herders who specialized in cattle were drinking milk and survived better due to lactase persistence.