Pseudobulbs: sink for exogenous nitrogen in epiphytic orchids
Pseudobulbs, which are somewhat enlarged or thickened succulent stems, are common in epiphytic orchids. Nitrogen can be transported from old to young pseudobulbs and between leaves and pseudobulbs......»»
Amazon’s $1.4B Roomba bid fails, leading to iRobot layoffs and CEO resignation
Concerns over stifled competition, Alexa tie-ins reportedly sink deal in Europe. Enlarge (credit: Getty Images) Amazon will no longer pursue a $1.4 billion acquisition of iRobot, maker of Roomba robot vacuums after the c.....»»
Cosmic building blocks of life discovered through the electron microscope
A team of researchers has examined the Winchcombe meteorite and demonstrated the existence in it of nitrogen compounds such as amino acids and heterocyclic hydrocarbons—without applying any chemical treatment and by using a new type of detector des.....»»
Study explores the connection between nitrogen oxides control and SNA, ozone reduction
Sulfate-nitrate-ammonium (SNA) and other atmospheric aerosols play a significant role in influencing both atmospheric and environmental conditions. These aerosols impact climate directly through scattering and absorbing solar radiation, thus influenc.....»»
The role of seasonal compensation effects on mediating the land carbon sink in response to an extreme El Niño event
Based on multiple evidence from remote sensing observations, global ecosystem model simulations and atmospheric CO2 inversions, a study led by Dr. Fangzhong Shi and Dr. Xiuchen Wu (Faculty of Geographical Science, Beijing Normal University) has found.....»»
Vines strangle forests in warm temperatures, threaten planet"s cooling "carbon sink"
As Earth records its hottest year ever, a global research collaboration has found warmer temperatures are a key driver in woody vines taking over the world's forests—threatening their vital role in helping cool the atmosphere by storing carbon......»»
Chemical synthesis: New strategy for skeletal editing on pyridines
A team from the University of Münster has introduced a strategy for converting carbon–nitrogen atom pairs in a frequently used ring-shaped compound into carbon–carbon atom pairs. The method has potential in the quest for active ingredients for n.....»»
Study shows effects of vegetation composition, warming and nitrogen deposition on peatland carbon sink function
Peatlands, which contain about one-third of the global soil carbon stock, are important carbon sinks. Their net carbon uptake is equivalent to ~1% of human fossil fuel emissions or 3%–10% of the current net sink of natural terrestrial ecosystems. H.....»»
Exploring developments and challenges in electrochemical nitrate reduction for ammonia synthesis
Ammonia is a necessary feedstock to produce nitrogen-based fertilizers, chemicals, pharmaceuticals, and polymers. To date, about 80% of global ammonia is used to produce nitrogen-based fertilizers which relates to 50% of global food production......»»
Researchers improve seed nitrogen content by reducing plant chlorophyll levels
Chlorophyll plays a pivotal role in photosynthesis, which is why plants have evolved to have high chlorophyll levels in their leaves. However, making this pigment is expensive because plants invest a significant portion of the available nitrogen in b.....»»
Researchers explore farmers" response to high fertilizer prices
In 2022, fertilizer prices reached record high levels due to the Russia-Ukraine war and supply chain disruptions from the COVID-19 pandemic. This has created a financial strain on farmers as nitrogen, phosphorus and potassium—elements found in most.....»»
Novel toxic gas sensor improves the limit of nitrogen dioxide detection
Researchers at the Korea Research Institute of Standards and Science developed a toxic gas sensor with the world's highest sensitivity. This sensor can precisely monitor nitrogen dioxide (NO2), a toxic gas in the atmosphere, at room temperature with.....»»
Scientists provide recipe to halve pollution from food production
A major report for the United Nations has put forward solutions to halve nitrogen pollution from agriculture and the food system in Europe, including reducing meat and dairy consumption, fertilizer use and food waste......»»
Northeast China faces high levels of nitrogen pollution, study finds
A new study has revealed the extent and sources of nitrogen pollution in Northeast Asia, a region that suffers from severe air pollution and environmental degradation......»»
Embedding nanodiamonds in polymer can advance quantum computing and biological studies
A nitrogen-vacancy (NV) center is a defect in the crystal structure of diamond, where a nitrogen atom replaces a carbon atom in the diamond lattice and a neighboring site in the lattice is vacant. This and other fluorescent defects in diamond, known.....»»
Even a single negative review can sink a good product, says study
Online retailers have every reason to be concerned about negative reviews, as they severely reduce the appeal of a product. An extensive study by Marton Varga of Bocconi's Department of Marketing and Paulo Albuquerque (INSEAD), recently published in.....»»
Scientists use large scientific facilities to test the synthesis and characterization of polymeric nitrogen
Polymeric nitrogen (PN), formed under high temperature and pressure conditions, is considered an ideal high energy density material (HEDM). Its application prospects extend beyond the field of energetic materials, showing significant relevance in the.....»»
New wheat yield analysis method separates disease impact from natural senescence
The yield of wheat crops is influenced by sink strength (grain number and nutrient absorption capacity) and source capacity (photosynthetic tissue efficiency). While sink limitations are widely reported, source limitations due to diseases like septor.....»»
Transforming rice phenotyping: Advanced deep learning models enhance panicle analysis and nitrogen impact studies
Rice is crucial for global food security, providing sustenance for half of the world's population. Its production, particularly influenced by environmental factors during the heading-flowering stage, affects crucial growth traits. Traditional phenoty.....»»
Earth may have had all the elements needed for life—contrary to theories that they came from meteorites
For many years, scientists have predicted that many of the elements that are crucial ingredients for life, like sulfur and nitrogen, first came to Earth when asteroid-type objects carrying them crashed into our planet's surface......»»
Exogenous arginine promotes coproduction of biomass and astaxanthin in Haematococcus pluvialis
Researchers led by Prof. Huang Qing from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences (CAS) have shown that arginine supplementation can improve the growth and astaxanthin production of Haematococcus pluvialis (H. pluvi.....»»