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GREEN BUSINESS HEADLINES
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› Sex or food? Decision-making in single-cell organisms
Unicellular diatoms are able to adapt their behavior to different external stimuli based on an evaluation of their own needs. In experiments, Seminavis robusta diatoms directed their orientation either towards nutrient sources or mating partners, depending on the degree of starvation and the need to mate. |
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› New understanding of Mekong River incision
An international team of earth scientists has linked the establishment of the Mekong River to a period of major intensification of the Asian monsoon during the middle Miocene, about 17 million years ago, findings that supplant the assumption that the river incised in response to tectonic causes. |
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› The science of sustainability
Can humans drive economic growth, meet rising demand for food, energy and water, and make significant environmental progress? The short answer is 'yes,' but it comes with several big 'ifs.' New research shows that we can put the world on a path to sustainability if we make significant changes within the next 10 years. |
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› New method to address deep-seated biases in science
A new statistical method that tests for equivalence, rather than difference, has a role to play in dismantling gender and publication biases in science. The authors believe the technique has broad applicability across disciplines and can help remove publication bias against ''negative results,'' opening the door to a broader investigation of natural phenomena. |
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› Letting nature take its course: Wolves in Yellowstone National Park
Since the reintroduction of wolves to Yellowstone National Park in 1995, the park's ecosystem has become a deeply complex and heterogeneous system, aided by a strategy of minimal human intervention. The new study is a synthesis of 40 years of research on large mammals in Yellowstone National Park. |
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› Antarctic ice shelf 'sings' as winds whip across its surface
Winds blowing across snow dunes on Antarctica's Ross Ice Shelf cause the massive ice slab's surface to vibrate, producing a near-constant set of seismic 'tones' scientists could potentially use to monitor changes in the ice shelf from afar, according to new research. |
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› When it comes to smartphone lifespan, brand name matters more than hardware
The environmental costs of smartphones are often exacerbated by the relatively short lifespans of these globally ubiquitous devices. When it comes to extending the lifespan of these products, brand name might be more important than repairability, a new study finds. |
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› Renewable energy is common ground for Democrats and Republicans
While conservatives and liberals tend to disagree on many environmental issues, they both view the development of solar power and other forms of renewable energy as financially savvy and a step towards self-sufficiency. |
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› Research assesses geographic distribution of new antibiotics following market introduction
New study finds that between 1999 and 2014, only 25 new antibiotics entered the global market. The majority of antibiotics released in this time period originated from Japanese or US companies and were launched in Japan or the US. Of the 25 antibiotics, 18 treat community-acquired respiratory infections, 14 treat skin infections, and 12 treat urinary infections. Half treat infections caused by resistant bacteria, but none targeted Gram-negative bacteria, which cause most untreatable infections. |
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› Father's nicotine use can cause cognitive problems in children and grandchildren
A father's exposure to nicotine may cause cognitive deficits in his children and even grandchildren, according to a new study. The effect, which was not caused by direct secondhand exposure, may be due to epigenetic changes in key genes in the father's sperm. |
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› Lymphatic system, key player in human health
Defects in the lymphatic system have been linked to a wide range of health consequences, but new findings of how the system works could lead to future therapies. |
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› New, durable catalyst for key fuel cell reaction may prove useful in eco-friendly vehicles
A new catalyst exceeds Department of Energy targets for performing the oxygen reduction reaction, a key step in generating an electric current in a hydrogen fuel cell. |
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