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 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.
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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.
African biosafety regulators will receive science-based information on biotechnology, protecting farmers, consumers, and the environment. The initiative aims to reduce poverty through improved agricultural practices.
A new project aims to provide healthy school meals using locally-sourced food, providing a reliable income for local farmers and improving rural economies. The initiative will help governments run school meal programmes in sub-Saharan Africa, benefiting millions of children facing poverty and hunger.
A study in South Africa found that medical documentation of injuries is associated with higher conviction rates in adult rape cases, while DNA evidence has limited impact. The research highlights the importance of basic forensic medical practices in assisting courts in rape cases.
African scientists will develop and grow their own pest-resistant bananas through a collaborative project with UK researchers. The initiative aims to empower nations to address agricultural challenges and improve food security in Sub-Saharan Africa.
Researchers analyzed a fossilized tracksite in southern Africa, discovering how early dinosaurs adjusted their movements to cope with slippery and sloping terrain. The study provides insight into the later evolution of the group, highlighting differences in walking styles between ornithischians and theropods.
The new White Paper reveals an estimated 13 million babies worldwide were born preterm in 2005, with one million deaths attributed to preterm birth. Premature births face serious lifelong health risks and contribute significantly to global healthcare costs.
Researchers used genetic and geographic data to understand why HIV-1 subtypes held steady in west central Africa before erupting as an epidemic in east Africa. The study found that connectivity between population centers and better transportation networks contributed to the rapid spread of the virus.
A mathematical model suggests that improved community-based access to life-saving drugs like misoprostol and antibiotics can prevent up to 59,000 maternal deaths across sub-Saharan Africa per year. The study found that the poorest women would benefit most from these interventions.
Pneumonia caused by Streptococcus pneumoniae and Haemophilus influenzae type b (Hib) claim an estimated 1.2 million child lives annually. Effective vaccines exist but their use is limited in low-income countries. Implementing pneumococcal vaccine could save over 440,000 children's lives by 2015.
The global average annual rate of reduction in under-5 mortality has increased from 2000-2008 compared to 1990-2000. However, the world is still far from achieving Millennium Development Goal 4, with many regions not on track to meet the target.
A recent study published in The Lancet suggests that children in Africa with sickle cell anaemia are dying unnecessarily from bacterial infections. The researchers recommend vaccination programs for all children in Africa to prevent these deadly infections, which can be prevented by vaccination.
Researchers have published genetic sequences, known as 'DNA barcodes,' to identify species of origin from leather products and meat in international trade. The study, led by the American Museum of Natural History, identifies 25 commonly traded mammals and reptiles, including duikers, Nile crocodiles, and alligators.
Researchers at the University of Virginia have identified a gene in cowpea that confers resistance to Striga, a parasitic flowering plant that attacks the roots of host plants. The discovery is significant as it could help develop strategies for improving resistance to Striga in other affected crops.
Researchers uncover 25 marine shell beads from Morocco and Algeria dating back 70,000-85,000 years, suggesting early humans wore and traded symbolic jewelry. The discovery confirms the oldest form of personal ornaments, adding to similar finds in Africa, Israel, and South Africa.
The study highlights South Africa's high injury death rate and its disproportionate impact on women, particularly intimate partner homicide rates. The authors emphasize the need for a comprehensive national action plan to address these social issues.
Despite notable achievements in disease management, South Africa faces a severe HIV and tuberculosis crisis, with 17% of the global burden. The country needs to escalate its public health response to tackle rising drug resistance and improve treatment outcomes.
A new analysis reveals that neglected tropical diseases (NTDs) in sub-Saharan Africa cause immense suffering, with helminth infections accounting for approximately 85% of the NTD burden. The study suggests that investing $200-$400 million annually could significantly reduce the burden of these diseases.
The number of people aged 60 or over in South Africa is projected to triple by 2025, leading to a doubling of cardiovascular deaths. The burden of non-communicable diseases is expected to increase as antiretroviral therapy reduces mortality from HIV/AIDS.
The Lancet South Africa series proposes three strategies to address public sector workforce needs, affordable national health insurance, and competent leadership. The authors also discuss the decline in clinical research activity and capacity, as well as health inequities in South Africa, highlighting the need for jobs and cooperation ...
A study estimates that implementing basic neonatal care and prevention of mother-to-child transmission could save up to 37,200 children's lives annually in South Africa. The interventions are estimated to cost US$1.5 billion per year, but the authors argue that the costs are affordable and effective implementation is the key gap.
The article discusses South Africa's paradox of poor health outcomes amidst high health expenditures and supportive programmes. The authors identify leadership, innovation, and priority actions needed to achieve better health outcomes and tackle pressing challenges such as HIV/AIDS and non-communicable diseases.
The country's health system faces historical roots of racism, apartheid, and economic inequalities, contributing to poor health outcomes and a high burden of HIV/AIDS. Despite being a middle-income country, South Africa has worse health outcomes than many lower-income countries.
The Faidherbia acacia tree has the potential to revolutionize African farming by providing a free source of organic nitrogen, increasing crop yields, and improving soil health. Its unique growth habit and adaptability to various climates make it an ideal solution for reversing soil degradation and supporting farmers' livelihoods.
For the first time, a NASA study has mapped Africa's coastal mangrove forests, showing widespread destruction due to pollution, deforestation, and real estate development. The maps provide detailed information on forest area, height, biomass, and structure, enabling scientists and officials to monitor and conserve these vital ecosystems.
Researchers discovered that early modern humans employed pyrotechnology to increase the quality and efficiency of their stone tool manufacturing process, requiring complex cognition and possibly language. The technology transformed a poor-quality stone into an excellent raw material for highly advanced tools.
A six-year study led by Panthera demonstrates that conservation strategies can significantly increase leopard populations and reduce human-cat conflict. The study, published in Biological Conservation, found that implementing regulations to disperse hunting pressure across a province helped stabilize the population, leading to increase...
A new study estimates that sub-Saharan Africa will only have one-third of the needed healthcare workers by 2015, with a shortage of 240,000 doctors and 551,000 nurses and midwives. The cost of scaling up the health system is projected to be $19 billion per year.
Researchers will test the AERAS-402/Crucell Ad35 vaccine candidate in people living with HIV, aiming to induce critical CD8 immune cells. The study is crucial for developing an effective TB vaccine, especially for those with HIV, who are 20 times more likely to develop TB.
Research suggests that starting antiretroviral therapy at a CD4 count of 350 is highly cost-effective. This approach may reduce morbidity, mortality, and improve long-term survival for patients in South Africa.
A study suggests starting antiretroviral therapy at higher CD4 thresholds can prevent significant clinical benefits and save lives in resource-limited settings. The model predicts nearly 76,000 deaths and 66,000 opportunistic infections over five years with earlier treatment initiation.
In sub-Saharan Africa, MSM are a high-risk group for HIV infection, with prevalence rates often 10 times higher than in the general population. The lack of access to vital services, including condoms and education, exacerbates the issue.
The Liverpool School of Tropical Medicine is launching a £30 million initiative to strengthen health research in Africa. The program will support over 50 institutions across 18 African countries and create postgraduate scholarships for students to research health-related issues.
The Wellcome Trust has launched a £30 million initiative to strengthen research capacity in Africa. Seven international and pan-African consortia will develop institutional capacity for health-related research vital to enhancing people's health, lives, and livelihoods.
A new fossil primate from Myanmar has redefined the origin of anthropoid primates, challenging the long-held belief that they evolved in Africa. The discovery of Ganlea megacanina supports the idea that amphipithecids are closely related to living anthropoids.
The NSF-funded project will create a long-term index of Agulhas Current transport using in situ measurements and satellite data. This will provide valuable insights into seasonal to decadal variability and its impact on global climate patterns.
A new study found that many nations are seeing an annual increase in visitors to their conservation areas, with visitor numbers rising by as much as 7 or 8 per cent per year in some countries. The research suggests that nature-based tourism remains extremely popular and is growing quickly in most places.
A new drug combination, nifurtimox-eflornithine therapy (NECT), has shown to be non-inferior to the best current treatment in curing sleeping sickness and is better tolerated, with fewer major adverse events. NECT's safety advantages and ease of administration make it a suitable option for resource-poor settings.
Scientists tracked white shark hunting patterns using geographic profiling, revealing that sharks refine search patterns with experience and concentrate efforts in prime hunting areas. The study expands knowledge of large predator hunting behavior and has implications for understanding marine communities.
Researchers found evidence of a massive 4,500-year-old drought in Africa and Asia, as well as a rapid 5,200-year-old cooling event that accelerated tropical glacier growth. The findings suggest that similar changes are currently occurring globally.
Researchers warn that African farmers lack access to climatically suitable crop varieties due to neglect of genebanks, threatening food security. Six countries face unique challenges as temperatures rise beyond historical experience, highlighting the need for immediate action to develop new crop varieties.
The Network of African Science Academies (NASAC) urges G8+5 countries to invest in rebuilding universities and research centers in Africa. NASAC also calls on the international community to support young African scientists seeking postgraduate and postdoctoral training.
A new study suggests that high population density catalyzed the emergence of modern human behavior, driven by increased exchange of ideas and skills. This skill maintenance, combined with a greater probability of useful innovations, led to the appearance of modern human behavior at different times in different regions.
Scientists have identified a new arenavirus, Lujo virus, linked to a fatal hemorrhagic fever outbreak in Zambia and South Africa. Genetic analysis confirms the utility of high-throughput sequencing for pathogen discovery, enabling rapid detection and response to emerging viral diseases.
Climate change models project 500,000-1 million sq km of marginal African farmland will no longer support crop cultivation by 2050. However, livestock production could be a sustainable alternative for millions of poor farmers in Africa.
Researchers at Tulane University are developing detection kits for Lassa viral hemorrhagic fever, which affects 300,000-500,000 people annually in West Africa, causing 5,000 deaths. The $7.07 million NIH grant will help complete the development and commercialization of these kits to aid public health and bioterrorism defense.
A network of wildlife conservation areas can save up to 90% of bird species in Africa affected by climate change. The research team found that protected areas will provide new habitats for birds forced to move due to changing temperatures and rainfall.
Despite growing demand for democracy, only 47% of Africans believe they have a democratic government, and 46% are satisfied with its functioning. The survey found that demand for democracy varies widely among countries, from 18% in Burkina Faso to 71% in Zambia.
A study found that healthcare workers in South Africa are at risk of developing XDR-TB, a potentially untreatable strain of tuberculosis. The researchers emphasize the need for stringent TB screening policies and rapid diagnostic testing to minimize the spread of drug-resistant TB.
A new study finds that charcoal grilling has a significantly larger carbon footprint than propane grilling, with a difference of almost three times. The main reasons behind this disparity are the efficiency and production methods of LPG versus charcoal.
The study reveals startling diversity in Africa, shared ancestry among geographically diverse groups, and traces the origins of Africans and African Americans. The research team mapped ancient migrations and determined that modern humans exited Africa near the middle of the Red Sea.
Scientists use DNA barcoding to identify mosquito species spreading lymphatic filariasis, a disease causing permanent disability worldwide. The technique reveals menace species habitats and range, aiding understanding of environmental factors influencing their breeding.
Researchers used Google Earth to locate a quarry site in Egypt where they discovered fossilized remains of small mammals from the early Miocene Epoch. The finds may provide insights into the migration of animals from Asia to Africa and the evolution of African wildlife.
Research published in PLOS Medicine found that mortality among HIV-infected people starting antiretroviral treatment (ART) is comparable to non-HIV related mortality in four sub-Saharan countries. The study analyzed data from over 2 million people with HIV and found moderate excess mortality, similar to that associated with diabetes.
The Malaria Elimination Group provides a roadmap for countries pursuing malaria elimination, reviewing operational, technical and financial decisions. The guidance aims to support countries in achieving universal coverage of preventive and treatment measures by 2010.
Infertility has serious consequences for women in Nigeria, particularly those with patrilineal descent structures. In Amakiri, infertile women face marginal living conditions and limited social status.
A new study reveals that droughts in West Africa can last for decades, with some droughts lasting up to four times longer than the current Sahel drought. The research suggests that changes in Atlantic Ocean sea surface temperatures play a key role in sustaining these long periods of drought.
Researchers have developed an almost year-by-year record of the last 3,000 years of West Africa's climate, revealing that catastrophic droughts occurred every 30 to 65 years. The new research suggests that global warming may exacerbate the normal climate pattern, producing even more severe and prolonged droughts.
The fourth round of data from the Global Project on Anti-Tuberculosis Drug Resistance shows a significant regional variation in drug-resistant TB prevalence. The majority of MDR-TB burden falls in China and former Soviet states, with the highest prevalence reported in these regions.
A study published in the Journal of Biogeography found that climate change may lead to longer bird migrations, with some species facing journeys of up to 250 miles longer. This could have significant consequences for birds' survival and ability to adapt.
Researchers have discovered different resistance mutations in east and west Africa, suggesting varying effectiveness of sulfadoxine as an antimalarial drug. Coordinating malaria control efforts across socioeconomically linked areas may be more effective in reducing the malaria burden across the continent.