Tuesday, February 5, 2019

Effects of cerium oxide nanoparticles on bacterial growth and behaviors: induction of biofilm formation and stress response

Abstract

In this paper, the effects of cerium oxide nanoparticles (CeO2 NPs) on the group bacterial behaviors were elaborated. After 36-h cultivation, the biofilm biomass was enhanced by the sub-lethal concentrations of 0.5 and 2 mg/L CeO2 NP exposure. Meanwhile, the promoted production of total amino acids in microbes further resulted in the increased surface hydrophobicity and percentage aggregation. To resist the CeO2 NPs stress, the biofilm exhibited a double-layer microstructure, with the protein (PRO) and living cells occupying the bottom, the polysaccharide (PS), and dead cells dominating the top. The bacterial diversity was highly suppressed and Citrobacter and Pseudomonas from the phylum of γ-Proteobacteria strongly dominated the biofilm, indicating the selective and enriched effects of CeO2 NPs on resistant bacteria. The stimulated inherent resistance of biofilm was reflected by the reduced adenosine triphosphate (ATP) content after 4 h exposure. The increased levels of reactive oxygen species (ROS) in the treatments of 8 h CeO2 NP exposure led to the upregulated quorum sensing signals of acylated homoserine lactone (AHL) and autoinducer 2 (AI-2), beneficial to mitigating the environmental disturbance of CeO2 NPs. These results provide evidences for the accelerating effects of CeO2 NPs on biofilm formation through oxidative stress, which expand the understanding of the ecological effects of CeO2 NPs.



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University of Alabama scientists: ‘No evidence’ climate change causes extreme cold – ‘Speculative, at best. Just like most theories of climate change’

http://bit.ly/2ScfXas By Valerie Richardson – The Washington Times Sunday, February 3, 2019 Numerous media outlets cited last week's polar vortex as an example of extreme weather caused by climate change, but it turns out such cold snaps are actually on the decline. Roy Spencer, principal research scientist at the University of Alabama in Huntsville, posted a graphic [...]

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Greens grasp for silver lining in Trump’s infrastructure pitch – ‘Trump didn’t offer an olive branch to environmentalists on climate change’

https://washex.am/2WHm8Sh by John Siciliano  | February 05, 2019 10:48 PM President Trump didn't offer an olive branch to environmentalists on climate change in his State of the Union address Tuesday night, but major groups say his call for infrastructure legislation could be an opening for cooperation. The Natural Resource Defense Council, a major national environmental group, [...]

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A cool new idea could revolutionize the electric power industry

zimmer-power-plant-720x358.jpg

University of Cincinnati researchers have developed a more efficient air-cooling system for power plants University of Cincinnati researchers say they have found a solution to one of the biggest environmental problems facing the energy industry: water consumption. Power plants in the United States need as much water each year as all of the nation's farms…

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Facile fabrication of highly efficient ETL-free perovskite solar cells with 20% efficiency by defect passivation and interface engineering

Chem. Commun., 2019, Accepted Manuscript
DOI: 10.1039/C9CC00312F, Communication
Chun Huang, Peng Lin, Nianqing Fu, Chang Liu, Baomin Xu, Kaiwen Sun, Danyang Wang, Xierong Zeng, Shanming Ke
Tetramethylammonium hydroxide (TMAH) is employed to modify the surface and electrical properties of florine-doped tin oxide (FTO) electrode in perovskite solar cells. Synchronously, owing to the entering of unbound TMA+...
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DEMOCRATS DIDN’T CLAP AS TRUMP TOUTED AMERICAN ENERGY BOOM IN SOTU

http://bit.ly/2GaUPLb BY MICHAEL BASTASCH President Donald Trump touted booming American energy production and exports during his State of the Union Address Tuesday night to thunderous applause, but not from Democrats. "We have unleashed a revolution in American Energy – the United States is now the number one producer of oil and natural gas in the [...]

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Watch: The Carbon Tax Scam – ‘Prepare yourselves for loads of carbon tax BS in the months and years to come’

For list of sources and downloadable transcript: https://clearenergyalliance.com/proje… Script: Of all the horrendously bad ideas on energy, this one takes the cake. It's called a carbon tax, a combination of everything big and bad—big government, big corporate influence, big deception, big job losses, and big taxes on all of us. The newest organization pushing this [...]

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The Three Major Problems with a Carbon Tax

http://bit.ly/2RD0jzy By ROBERT BRYCE It faces both political and practical obstacles. When it comes to energy policy, Washington has one resource that appears infinitely renewable: carbon-tax proposals. Al Gore proposed a carbon tax back in 1992. The Clinton administration tried, and failed, to impose a "Btu" tax on all forms of energy. The latest iteration [...]

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American Energy Alliance: The State of American Energy is Strong

  The State of American Energy is Strong WASHINGTON – In response to President Trump's 2019 State of the Union address held Tuesday night, AEA President Tom Pyle made the following statement: "This evening, President Donald Trump reminded us that the state of American energy is strong. America's economy is booming, creating a thriving environment for [...]

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Photocatalytic reductive radical-radical coupling of N, N'-cyclicazomethine imines with difluorobromo derivatives

Chem. Commun., 2019, Accepted Manuscript
DOI: 10.1039/C8CC09385G, Communication
Peng-Ju Xia, Zhi-Peng Ye, Dan Song, Ji-Wei Ren, Han-Wen Wu, Jun-An Xiao, Haoyue Xiang, Xiaoqing Chen, Hua Yang
A visible-light-induced difluoroalkylation of N,N'-cyclicazomethine imine was successfully realized through a novel photoredox radical-radical cross-coupling reaction. This developed protocol exhibits high functional group tolerance and affords a variety of difluorinated...
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Hydrated ionic liquids enable both solubilisation and refolding of aggregated Concanavaline A

Chem. Commun., 2019, Accepted Manuscript
DOI: 10.1039/C8CC10102G, Communication
Kyoko Fujita, Roka Nakano, Risa Nakaba, Nobuhumi Nakamura, Hiroyuki Ohno
We have succeeded in dissolution and refolding of aggregated concanavaline A in hydrated ionic liquids, ionic liquids containing a limited amount of water molecules. Both ammonium and phosphonium salts were...
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[ASAP] Hollow Multi-Shelled Structures of Co3O4 Dodecahedron with Unique Crystal Orientation for Enhanced Photocatalytic CO2 Reduction

TOC Graphic

Journal of the American Chemical Society
DOI: 10.1021/jacs.8b13528
jacsat?d=yIl2AUoC8zA


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China’s Greenhouse Gas Emissions Rising At ‘Alarming Rate’

methane-emissions-china_Fig2-720x306.png

From the place you'd least expect….CNN Chinese methane emissions are rising at an alarming rate despite recent government regulations aimed at curbing the climate-changing pollutant, a new report has revealed. A study released in the journal Nature on Tuesday shows a steady growth in China's methane emissions, primarily from the country's massive coal mining sector, undermining…

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Midweek Unthreaded

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Right Side SOTU Broadcast Live

Live State Of The Union feed from Right Side Youtube Continue reading

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How Climate Change Threatens UK Fruit & Veg

By Paul Homewood

 

There is yet another disgracefully scaremongering and dishonest climate change report out, as the "Independent" reports:

 

 

image

Britain's chips are under threat as climate change triggers unpredictable weather and brings sweeping changes to the nation's fruit and vegetable growers.

The potato snack was left an inch (2.5cm) shorter on average in 2018 after extreme heatwaves robbed them of much-needed water over the summer months.

This was one of the many changes catalogued in a new analysis by the Climate Coalition network and scientists at the University of Leeds.

They explored how rising global temperatures and associated extremes are likely to impact crop production and make British-grown produce harder to find.

Analysis conducted in the wake of last summer's heatwaves by the Met Office found the event was made 30 times more likely by climate change.

Potato yields were slashed by a fifth in England and Wales in 2018, while carrot production fell by up to 30 per cent and onions by 40 per cent.

At the other end of the weather spectrum, more than half of UK farmers reported being affected by severe flooding or storms over the past 10 years.

The intensity of winter rainfall has gradually been creeping up in recent decades, as the changing climate tampers with weather systems and increases the chances of major downpours….

 

At current rates, the amount of land that is well-suited to growing potatoes could decline by three quarters by the middle of the century, according to projections.

Gareth Redmond-King, head of climate change at coalition member WWF, said: "To be able to enjoy our mash, chips or jackets for years to come, we need to take measures to tackle climate change urgently."

"If we don't, then the impact on both growers and consumers is just one of the ways our lives will change in a world of climate breakdown."

Farmers are becoming increasingly concerned about the impact of climate change, with the NFU announcing at a recent conference that UK agriculture would

The government has pledged to reward farmers who help cut emissions and protect the environment under its new agriculture scheme.

"High-quality, locally-grown fruit and veg are a crucial component of British diets," said environment secretary Michael Gove.

"Yet, as we saw with last year's drought, this nutritious food, and the livelihoods of the hard-working farmers who grow it, are increasingly threatened by more extreme weather and increased pests and diseases as a result of climate change."

However, while the UK has achieved impressive cuts of around two fifths of its greenhouse gas emissions since 1990s, it is current not on track to meet its future targets as sectors such as transport continue to lag behind.

https://www.independent.co.uk/news/health/chips-potatoes-shrink-climate-change-global-warming-fruit-vegetables-heatwaves-a8762506.html

 

This is the report quoted:

 

image

https://www.theclimatecoalition.org/s/RecipeDisasterReport_WEB_FINAL-ilovepdf-compressed-1-6sdy.pdf

It is written by the Climate Coalition, a grouping of many of the usual suspects, a

long with the Priestly International Centre for Climate:

image

 

And was warmly welcomed by Michael Gove, who has now plainly lost the plot completely.

image

In classic alarmist fashion, it takes a few weather events and calls them climate. It even has the nerve to claim:

More than half of all farms in the UK say they have been affected by a severe climatic event, such as flooding or a storm in the past 10 years.

Floods and storms are weather events, not climate, as any honest scientist would admit.

But let's start by looking at their specific claims of how our fruit and veg are threatened:

 

 

1) The 2018 summer heatwave was made about 30 times more likely than it would be normally by climate change.

This claim originated from the Met Office last summer, and is utterly mendacious.

The simple facts are that, given the weather we had – almost continuous high pressure and sunshine, it was inevitably going to be an extremely hot summer, global warming or not, even if it ended up slightly hotter than it may otherwise have been.

No evidence has been provided that such weather patterns have become more common because of climate change.

 

 

2) New analysis released by The Climate Coalition and the Priestley International Centre for Climate says the UK can expect more frequent extreme weather events, including longer-lasting and more intense heatwaves and a one in three chance of record-breaking rainfall hitting parts of England each winter

Projections of longer lasting and more intense heatwaves are not borne out by historical data, which show that no summer since has matched the heat of 1976, and that the summer of 2018 was the first "hot" summer since 2006.

Such summers are still, in other words, a rarity.

UK Mean daily maximum temp - Summer

https://www.metoffice.gov.uk/climate/uk/summaries/actualmonthly

As for "record winter rainfall in England", the only unusually wet winter in recent years was, of course, 2013/14. Yet that was barely wetter than in 1914/15. Both, needless to say, were exceptional weather events, and not climatic events.

Otherwise, long term trends show absolutely no evidence that winters are getting wetter in England, or more extreme.

England Rainfall - Winter

https://www.metoffice.gov.uk/climate/uk/summaries/actualmonthly

 

 

3) The climate extremes of the past few years—including the snowfall and freezing temperatures of February and March 2018 —have been devastating for UK fruit and vegetable farmers.

I'm not sure how they have the nerve to claim that cold winters are due to global warming. But, unfortunately, the facts show that cold Februaries and Marchs are not only common occurrences, but used to be much colder in the past.

UK Mean temperature - February

UK Mean temperature - March

https://www.metoffice.gov.uk/climate/uk/summaries/actualmonthly

 

 

4) The climate extremes of the past few years- one of the driest June months in England and Wales since 1910—have been devastating for UK fruit and vegetable farmers.

In fact, extremely dry Junes tended to be more common in the past. The driest on record was in 1925.

As the graph shows, Junes with less than 20mm of rain come along roughly once a decade on average. Last year was the first since 1995.

England Rainfall - June

https://www.metoffice.gov.uk/climate/uk/summaries/actualmonthly

 

 

5) Apple growers lost around 25% of their harvest in 2017 due to unexpectedly late frosts

Again, they try to pin cold weather on global warming!

The frost concerned were in April, but the data shows much colder Aprils were the norm prior to the 1990s.

England Mean daily minimum temp - April

https://www.metoffice.gov.uk/climate/uk/summaries/actualmonthly

The quote about apples comes from a DEFRA report, which shows that production of fruit in 2017, though down on the previous year, was still significantly higher than 2007 to 2013:

image

https://www.gov.uk/government/statistics/latest-horticulture-statistics

In reality, as any farmer would admit, weather is rarely perfect all year round, and production always has ups and downs.

Harvests in 2015 and 2016 were unusually high, so a drop back to more normal levels was inevitable sooner or later.

Meanwhile, early reports suggest that last year's apple harvest was another bumper year, thanks to the scorching summer weather.

And not only apples. As the Guardian reported last October, English winemakers were raising a glass to a bumper harvest on course to be the best in history in terms of both quality and quantity, after a long, hot summer provided unparalleled conditions for viticulture.

 

 

6) Carrot yields (down a reported 25-30%) and onion yields (reportedly down 40% on a normal year) were hampered in 2018 by warmer than average temperatures.

There is no evidence that carrot or onion yields are affected by warmer temperatures. On the contrary, it is lack of rainfall which affects yields.

In the UK, of course, hot summers go hand in hand with dry ones, both the result of stable, anti-cyclonic weather with plenty of sunshine.

And, as that inconvenient Met Office keeps illustrating, last summer was not exceptionally dry. Such summers occur about every decade on average, but last summer was the first really dry one since 1995.

If anything, summers are trending slightly wetter.

England Rainfall - Summer

https://www.metoffice.gov.uk/climate/uk/summaries/actualmonthly

Again, we need to go back to that DEFRA report, which shows no trend in vegetable production between 2007 and 2017:

image

https://www.gov.uk/government/statistics/latest-horticulture-statistics

 

 

7) Potato yields were down on average 20% in England and Wales in 2018 compared to the previous season, making it the fourth smallest harvest since 1960.

This is possibly one of the most outrageously dishonest claims.

As well as the factors already mentioned with regard to carrots and onions, there is one thing which the report omits to mention – the fact that much less land is used for potatoes these days.

FAOSTAT tells the real story, that the authors of this report don't want you to know:

chart-2

As the graph above shows, area harvested for potatoes is now less than half than in the 1960s.

When we look at yields, below, we see that these have more than doubled, despite the supposed calamities posed by climate change. Yield data is not available for 2018 yet, but no doubt it will have fallen sharply, just as it did in previous dry summers, such as 1975, 1976 and 1995.

But it is also significant that the biggest drop of all was during the wet summer of 2012, reminding us that rainfall, whether too little or too much, is what really matters.

chart-3

But to imply that potato harvests last year are amongst the lowest since 1960 because of climate change is quite simply fraudulent, when the real reason is the reduction in area planted.

 

 

Long Term Trends

To get a proper perspective, rather than the politicised message from the ridiculous Climate Coalition report, we need to look at the actual data from FAOSTAT.

Again, the figures only go to 2017, but both fruit and vegetable show sizeable increases in yields since the 1960s, despite climate change. In particular, fruit yields have rocketed in the last decade.

chart-4

chart-5

http://www.fao.org/faostat/en/#compare

This may be due to all sorts of reasons. But the allegation that British growers have been "hard hit" by extreme weather and climate change is self evidently unadulterated bullshit.

 

 

Priestley International Centre

There is a side story to all of this nonsense.

The Director of the Priestley International Centre for Climate, which helped to write and is evidently the driving force behind this piece of highly politicised junk science, is none other than Piers Forster.

And Forster just so happens to be the latest recruit to Gummer's Committee on Climate Change, appointed two months ago.

image

https://www.theccc.org.uk/about/committee-on-climate-change/

This is the level of integrity and expertise around which the Committee on Climate Change is based, and on which in turn government policy is based.

Nothing better could sum up why the CCC should be abolished without delay.



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Study: Much of the surface ocean will shift in color by end of 21st century

Climate-driven changes in phytoplankton communities will intensify the blue and green regions of the world's oceans From the Massachusetts Institute of Technology Climate change is causing significant changes to phytoplankton in the world's oceans, and a new MIT study finds that over the coming decades these changes will affect the ocean's color, intensifying its blue…

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[ASAP] Excimer Formation in Carboxylic Acid-Functionalized Perylene Diimides Attached to Silicon Dioxide Nanoparticles

TOC Graphic

The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.8b12061
jpccck?d=yIl2AUoC8zA


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[ASAP] Distinct Routes of Singlet Fission and Triplet Fusion: A Fluorescence Kinetic Study of Rubrene

TOC Graphic

The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.8b08677
jpccck?d=yIl2AUoC8zA


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[ASAP] Entropic Barriers Determine Adiabatic Electron Transfer Equilibrium

TOC Graphic

The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.8b11815
jpccck?d=yIl2AUoC8zA


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[ASAP] Enhanced Magnetocaloric Effect Driven by Hydrostatic Pressure in Na-Doped LaMnO3

TOC Graphic

The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.8b09964
jpccck?d=yIl2AUoC8zA


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[ASAP] Quantum State and Doppler-Resolved Scattering of Thermal/Hyperthermal DCl at the Gas–Liquid Interface: Support for a Simple “Lever Arm” Model of the Energy-Transfer Dynamics

TOC Graphic

The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.8b07359
jpccck?d=yIl2AUoC8zA


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[ASAP] Photoexcited Dynamics in Metal Halide Perovskites: From Relaxation Mechanisms to Applications

TOC Graphic

The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.8b11347
jpccck?d=yIl2AUoC8zA


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[ASAP] Molecular Dynamics Study of the Relation between Analyte Retention and Surface Diffusion in Reversed-Phase Liquid Chromatography

TOC Graphic

The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.8b11983
jpccck?d=yIl2AUoC8zA


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[ASAP] Computational Screening for ORR Activity of 3d Transition Metal Based M@Pt Core–Shell Clusters

TOC Graphic

The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.8b11483
jpccck?d=yIl2AUoC8zA


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