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Decades of research brings quantum dots to brink of widespread use
LED colloidal quantum dots semiconductor LSC
2021/8/9
A new article gives an overview of almost three decades of research into colloidal quantum dots, assesses the technological progress for these nanometer-sized specs of semiconductor matter, and weighs...
Study of Belize Barrier Reef Shows Nitrogen Enrichment from Land-based Sources Doubled in Four Decades：What’s killing coral reefs in Florida is also killing them in Belize
coral reef nitrogen concentration algal blooms ecological system
2021/8/5
Only 17 percent of live coral cover remains on fore-reefs in Belize. A study finds new evidence that nitrogen enrichment from land-based sources like agriculture run-off and sewage, are significantly ...
Like matryoshka dolls: One insect species introduced decades ago to a small island had an effect on several insect populations
insect bacterial symbiont genetic ecological system
2021/8/5
Researchers thought 30 years ago that they just introduced some Glanville fritillary butterfly larvae on a small island in the Åland islands, Finland. Little did they know that within the butterf...
Depleted seamounts near Hawaii recovering after decades of protection（图）
Depleted seamounts Hawaii decades protection
2019/10/21
For decades, overfishing and trawling -- dragging the ocean bottom with heavy nets -- devastated parts of an underwater mountain range in the Pacific Ocean near Hawaii, wrecking deep-sea corals and de...
Tricky grass genome sequenced after two decades of investment and research（图）
Tricky grass genome sequenced after two decades investment research
2017/12/19
Imagine if as you read this article, blocks of text kept rearranging themselves, recombining and repeating, seemingly at random. Now imagine those blocks of text are genes. You might have some idea of...
Where did those electrons go? Decades-old mystery solved（图）
those electrons Decades-old mystery solved
2017/11/23
The concept of “valence” – the ability of a particular atom to combine with other atoms by exchanging electrons – is one of the cornerstones of modern chemistry and solid-state physics.Valence control...
In 1984, Goldreich, Goldwasser and Micali formalized the concept of pseudorandom functions and proposed a construction based on any length-doubling pseudorandom generator. Since then, pseudorandom fun...
Decades of Data on World’s Oceans Reveal a Troubling Oxygen Decline
Decades of Data World’s Oceans Oxygen Decline
2017/7/19
A new analysis of decades of data on oceans across the globe has revealed that the amount of dissolved oxygen contained in the water – an important measure of ocean health – has been declining for mor...
FORESTRY EXPANSION DURING THE LAST DECADES IN THE PARAIBA DO SUL BASIN–BRAZIL
forestry remote sensing Rain Forest multitemporal assessment
2016/12/1
from 1986 to 2010. In this region is situated the most important and largest extension of reminiscent of Mata Atlantica Biome reminiscent. This biome has been one the most exploited Brazilian biome si...
SPATIOTEMPORAL DYNAMICS OF SURFACE WATER EXTENT FROM THREE DECADES OF SEASONALLY CONTINUOUS LANDSAT TIME SERIES AT SUBCONTINENTAL SCALE
Landsat time-series seasonally continuous surface water dynamics flooding dynamics Murray-Darling Basin Australia competing water demands drought random forest long term trends water river basin water management
2016/11/30
Surface water is a critical resource in semi-arid areas. The Murray-Darling Basin (MDB) of Australia, one of the largest semi-arid basins in the world is aiming to set a worldwide example of how to ba...
Researchers confirm decades-old theory describing principles of phase transitions
Researchers decades-old theory describing principles phase transitions
2016/11/29
New research conducted at the University of Chicago has confirmed a decades-old theory describing the dynamics of continuous phase transitions.The findings, published in the Nov. 4 issue of Science, p...
Five Decades of Structure:A Retrospective View
Kuhn structure paradigms normal science scientific revolutions estructura paradigmas ciencia normal revoluciones científicas
2016/5/30
This paper is an introduction to the special issue commemorating the 50th anniversary of the publication of The Structure of Scientific Revolutions by Thomas Kuhn. It introduces some main ideas of Str...
Ecologists test stability of Maine ecosystem over two decades
Ecologists Maine ecosystem over two decades
2016/2/23
Working on a lobster boat in Swan's Island, Maine, typically means an early wake-up call. The boats head out around 5:30 in the morning.For University of Pennsylvania ecologist Peter Petraitis, Califo...
Ecologists test stability of Maine ecosystem over two decades
Ecologists test stability Maine ecosystem
2016/3/2
Working on a lobster boat in Swan's Island, Maine, typically means an early wake-up call. The boats head out around 5:30 in the morning.For University of Pennsylvania ecologist Peter Petraitis, Califo...
Comment on Demonstrations of Shor's Algorithm in the Past Decades
Shor's algorithm continued fraction expansion quantum Fourier transformation
2016/1/27
We remark that the experimental demonstrations of Shor’s algorithm in
the past decades are falsely claimed and flawed, because they had used too less qubits
in the first quantum register to accompli...