Researchers from the University of Southampton have revealed a breakthrough in optical fiber communications. They developed an approach that enables direct modulation of laser currents to be used to generate highly advanced modulation format signals. The research explores a radically new approach to the generation of spectrally-efficient advanced modulation format signals as required in modern optical communication systems.
The recovery of large carnivores in Europe is a great success for nature conservation. At one third of mainland Europe, at least one species of large carnivore is present, according to a new article. It is an excellent example that humans and carnivores can share the same landscape, say researchers.
Researchers have created a simple mathematical model based on optical measurements that explains the stunning colors of Yellowstone National Park’s hot springs and can visually recreate how they appeared years ago, before decades of tourists contaminated the pools with make-a-wish coins and other detritus.
A genetic pathway has been found that accounts for the extraordinary size of the human brain. The research team has identified a gene, KATNB1, as an essential component in a genetic pathway responsible for central nervous system development in humans and other animals.
This is an image of a breast tumor identified as Epi-Luminal B of poor prognosis. Breast cancer is the most common in women. One in nine will suffer breast cancer over their lifetime. Progress in prevention and early detection, and the use of chemotherapy after surgery (adjuvant chemotherapy), have achieved significantly increase survival in this disease in the last ten years, but much remains to be done.
A scanning electron micrograph of methicillin-resistant Staphylococcus aureus (MRSA) magnified 2381x. Methicillin-resistant Staphylococcus aureus (MRSA) is a common cause of hospital-acquired infections, with the largest burden of infections occurring in under-resourced hospitals. While genome sequencing has previously been applied in well-resourced clinical settings to track the spread of MRSA, transmission dynamics in settings with more limited infection control is unknown. In a study published online today in Genome Research, researchers used genome sequencing to understand the spread of MRSA in a resource-limited hospital with high transmission rates.
This is Dr Stephen Munro at the School of Anthropology and Archaeology at ANU. An international team of scientists has discovered the earliest known engravings from human ancestors on a 400,000 year-old fossilised shell from Java.
Insect muscle cells are marked in red, cell nuclei (DNA) in blue and virus in green. Insects can transmit viral diseases to humans. Therefore, understanding how insects cope with viral infection, and what immune mechanisms are triggered, can be important to stop diseases transmission. In a study published in this week's issue of the scientific journal PLOS Pathogens*, researchers from the Instituto Gulbenkian de Ciencia (IGC; Portugal) now show that the entry route of the virus changes how the insect host responds to it. Using the fruit flies as a model of study, they discovered an immune mechanism that is specifically effective when flies are infected through feeding.