Washington-based architect and designer Michael Mannhard has unveiled designs for BladeYARD, a proposal for a Burning Man 2021 installation built from recycled wind turbine blades. Created as a visual warning of the effects of climate change and shortsighted solutions, the installation mimics a large-scale ruin with parts of the blades submerged in the sands of Nevada’s Black Rock Desert.[...]

Raised in the countryside of South West England, creative artist Emma Aitchison has developed a jewelry line inspired by and respectful to nature. Furthermore, Aitchison wanted her unique designs to act as a symbol for environmental awareness and to provoke conversations about protecting vital resources on the planet.[...]

In an effort to find a balance between protecting the significant investment in our cellular devices and protecting the planet, LifeProof has developed a phone case that sources materials diverted from the ocean and simultaneously supports organizations directly involved in providing safe water, protecting ocean life and maintaining river habitat. [...]

Creating furniture is an age-old art form that has incorporated standard materials such as aluminum, wood and rattan. However, one artist has perfected a way to use another prolific material, cardboard, into furniture designs, and he'll show you how to use it too. [...]

I only have 8 more pages to write for the Doris Encyclopedia, which is Doris 19-27 plus a bunch of new writing, interviews, and articles I wrote for MaximumRockandRpll and other zines! I'm taking pre-orders on a fundraising website called Kickstarter. click here to link
Spread the word!
thanks so much!!!
It's scheduled to be printed by the end of July!!!

www.kickstarter.com/projects/369768719/the-doris-encyclopedia

My book is coming out next week!
Upcoming Reading Tours:
August 11: Asheville NC, Malaprops Bookstore 7:00
September 23: Baltimore MD, Anarchist book fair; 6:00
September 24: Philadelpia PA, Wooden Shoe Bookstore; 7:00
September 25: NYC, Bluestockings Bookstore
September 26: Brooklyn, Bookthug Nation
September 27: North Hampton, MA, Food For Thought
September 28: may be somewhere in Vermont
September 29-30: Montreal
October 1-2:
October 3: Toronto
October 4: Pittsburgh

WASHINGTON (April 29, 2020) — Today, the U.S.

This is the first release note in 2020. And we are glad to introduce a new feature for our automated content posters – CONTENT RECYCLING.
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An AI chip designed to mimic certain aspects of the human brain has given a bicycle an unprecedented level of autonomy.

Around 150 tonnes of mixed cardboard and paper recycling waste was alight

"I joined ICA to fulfil my biggest dream: Racing in the World Tour and Tour De France!" 23-year-old Chokri Elmehdi from Morocco said.

"Tammy's Always Dying" is a low-key, insightful comic drama about a striving woman and her albatross-like mother, played by Felicity Huffman.

The relationship between health and poverty is reasonably well known; one can exacerbate and contribute to the other in a vicious cycle.

This update, as well as including a few health stats updates, provides further information on noncommunicable diseases (which cause some two-thirds of all deaths each year) and more details on the relationship with poverty.

Read full article: Global Health Overview

THANKFULLY, the Government is still encouraging us to get out and exercise - as long as we keep the two-metre distance rule.

GRANT SHAPPS announced the Government is introducing a £2 billion travel scheme to encourage Britons to use alternative transport as the UK slowly relaxes lockdown measures.

Single shooting in South L.A. is believed to have touched off vicious cycle of retaliation, officials say

W Series champion Jamie Chadwick talks about how she is finding life in lockdown, with exercise, Zoom chats and cooking helping to pass the time.

A 16-year-old boy suffers life-threatening injuries in an apparent double hit-and-run, police say.

Funding for English local authorities is likely to be unveiled to encourage people to be more active.

In Ann Arbor, Mich., the creators of a new autonomous vehicle have designed their robot to operate on local streets — but more so like a bicycle than a car.

• I tested a roughly $33,000 Polaris Slingshot R, a three-wheeled "autocycle."
• The three-wheeler category includes vehicles from Can-Am and Harley-Davidson, offering a motorcycle experience in a less demanding package.
• My Slingshot R had a new, Polaris-developed, 203-horsepower engine and an automatic transmission.
• In all but three US states, no motorcycle license is required to operate the Slingshot (New York, Massachusetts, and Alaska continue to require the motorcycle certification).
• The Slingshot is insanely fun, with a modest learning curve — it's a great alternative to a two-wheeler, although the price is definitely steep for the Slingshot R.
• Visit Business Insider's homepage for more stories.

Motorcycles are cool, but they aren't for everybody. Fortunately, there are some alternatives out there that offer an equally compelling, open-air experience.

One of the most popular is the the Polaris Slingshot, manufactured by the Minnesota-based powersports company. Until recently, Slingshots were available only with manual transmissions and GM-sourced engines, but for 2020, Polaris has updated the autocycle with an in-house motor and an automatic.

The automatic transmission in particular really broadens the Slingshot's potential. So I was excited to sample the machine, which I first saw about five years ago.

Polaris was kind enough to loan me a tester for a few weeks. Here's how it went:

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The Polaris Slingshot is a three-wheeled autocycle/motorcycle that Polaris industries has produced since 2014. My 2020 Slingshot R tester cost about $33,000 and was outfitted in a menacing red-and-black paint job.

The cheapest Slingshot is about $20,000.

This wasn't my first crack at a Slingshot. Polaris brought the vehicle to Insider's New York offices when the vehicle first launched.

And I generally have a gander at the Slingshot when I visit the annual New York motorcycle show.

The Slingshot is classified as either a motorcycle or an autocycle, depending on which state it's being operated in.

Yep, it looks like the Batmobile. Or Batcycle. Hard to avoid feeling like a superhero when you're behind the wheel. In all but three US states, no motorcycle license is required to drive the Slingshot. In New Jersey, you are required to wear a helmet.

Up front, you have 18-inch forged aluminum wheels, with an 20-incher at the back. The brakes have two-piece composite rotors.

Permanent open-air motoring isn't for everybody. Polaris does sell and older model, the Grand Touring, which has a cockpit canopy. The Polaris R has a waterproof interior and drain holes in the floorboards, should you get caught in bad weather.

My tester was the top-level "R" trim, complete with dual roll bars for drier and passenger.

Let's talk fender fairings! The Slingshot's are dramatic and large — I was reminded of Chevy Corvettes while driving this thing. Like a motorcycle, there's no rear-view mirror, so you have to adjust slightly to using the sideviews.

There's a new engine under the hood. Previously, Polaris used a 2.4-liter, four-cylinder GM-sourced Ecotech motor, making up to 175 horsepower. But my R had a ProStar four, also at 2.4-liters, cranking out 203 horsepower with a five-speed automatic transmission (a manual remains available). It's an in-house engine that was impressive in action.

The top speed is limited at 125 mph, and the 0-60mph run, according to Polaris and confirmed by yours truly, is about five seconds.

The four-banger redlines at 8,500 rpm and even with the automatic transmission does a pretty fair imitation of proper motorcycle acceleration. The auto is a tad crunchy, but in this context, that's a plus. It keeps you aware of what the engine is doing.

The rear wheel — fat and wide — is yoked to the motor and transmission with a belt drive. The suspension is surprisingly compliant, but you do have to be mindful of bumps, potholes, and manhole covers if you want to preserve you lower spine.

Polaris says the interior has been upgraded for 2020. No one would call it premium, but for a vehicle like this, it's rather comfortable.

The steering wheel is leather-wrapped, multifunctioned, and flat-bottomed to make getting into and out of the driver's seat easier.

The instrument cluster is a basic analog affair with a central digital display. The red button to on the right steering-wheel spoke allows you to switch between Comfort and Slingshot modes (the latter being the high-performance option).

The bucket seats are waterproof and extremely well-bolstered, with three-point seat belts.

The Slingshot's tubular frame is apparent in the doorless frame.

Not really much cargo capacity here, although I did use the Slingshot for a grocery-store run and quick jaunt to Target to buy a basketball.

There is a place to stow a smartphone, located just above the push-button gear selector.

The Slingshot also has push-button start-stop.

The glove compartment is the only other storage available ...

... And it's actually pretty roomy. One could stash a rain jacket in there, for example.

The RideCommand infotainment system is basic — but good! On a vehicle such as this, I wasn't expecting much, but the audio setup sounded decent, the screen was responsive, and Bluetooth and USB connectivity was on-par with what you'd find in any modern automobile.

There's even GPS navigation, which can display a map and provide turn-by-turn guidance.

The ride-mode selector is doubled in the infotainment system.

So what's the verdict?

I love three-wheelers. They aren't as cool as two-wheeled motorbikes, but they provide easy access to open-air motoring, and the driving/riding experience is much more engaging than what you find in convertible automobiles.

For anybody who dislikes the impracticality of motorcycles but wants to partake of the open-road lifestyle, machines like the Slingshot (the Can-Am Spyder and the Harley-Davidson Freewheeler, to name two) are ideal.

Not for nothing, they also offer aging riders a chance to yank their helmets and biker jackets out of storage to pursue moderately safer riding. With the Slingshot, gearing-up isn't necessary.

The trade-off, of course, is price. The Slingshot R that I tested costs more than an entry-level car or SUV. So, an expensive plaything. But there's nothing wrong with that. Everybody needs a hobby.

No doubt about it, the Slingshot captures attention. I lost count of how many little kids a stopped in their tracks as I tooled around the Jersey suburbs. The last vehicle that provoked such astonishment was the Lamborghini Huracán Performante. If you become a Slingshotter, prepare to be pointed at and asked for photo-ops.

Driving-wise, the Slingshot scratches an itch: on the road, the experience is unexpurgated — you don't have to be constantly vigilant, as you would on a bike, but you do need to remain aware. Highway trips are demanding. And noisy. And exhilarating. The Slingshot R is also fast and torque-y and the power goes to the single back wheel, so the while the two-wheeled front is stable, the back end can get pretty wiggly, especially in Slingshot mode, if you stomp the throttle.

I had iffy springtime Northeast weather to contend with, so I took the Slingshot out only on warm and sunny days; the rest of the time, I parked it in my garage. But the vehicle can handle being rained on, and one could also buy a cover to protect it from the elements. To be honest, however, I think it's a better choice in warm, dry climates. 

The performance is aggressively go-kart-y. This thing will make you a better drive, thanks to its point-and-shoot steering, crisp suspension, and easy access to power. It's insanely fun on curves and into corners. But it's also worthy of short road trips. In fact, the relative comfort was a shocker: I took the Slingshot out for a few hours one day and suffered no ill-effects to my lower back.

Drawback? The design is thoroughly sporty, so if you don't go in for that, the Slingshot might not be your bag. It isn't a throwback, nor is it at all steam-punky. 

It also isn't a motorcycle, in that there aren't any handlebars, you don't throw a leg, and the single wheel takes up the rear. 

But the Slingshot is a absolute blast, and if you're a weekend warrior who wants to carve up a canyon or a country road without having the grapple with a motorcycle's demands — and you don't mind dropping some dollars — the Slingshot is perfect.

Cycling in Tuscany, Italy

The Vuelta a Espana organisers have confirmed that a race already rescheduled and shortened would also now cut its foray into neighbouring Portugal from the 2020 itinerary.

Mutations in retinaldehyde-binding protein 1 (RLBP1), encoding the visual cycle protein cellular retinaldehyde-binding protein (CRALBP), cause an autosomal recessive form of retinal degeneration. By binding to 11-cis-retinoid, CRALBP augments the isomerase activity of retinoid isomerohydrolase RPE65 (RPE65) and facilitates 11-cis-retinol oxidation to 11-cis-retinal. CRALBP also maintains the 11-cis configuration and protects against unwanted retinaldehyde activity. Studying a sibling pair that is compound heterozygous for mutations in RLBP1/CRALBP, here we expand the phenotype of affected individuals, elucidate a previously unreported phenotype in RLBP1/CRALBP carriers, and demonstrate consistencies between the affected individuals and Rlbp1/Cralbp−/− mice. In the RLBP1/CRALBP-affected individuals, nonrecordable rod-specific electroretinogram traces were recovered after prolonged dark adaptation. In ultrawide-field fundus images, we observed radially arranged puncta typical of RLBP1/CRALBP-associated disease. Spectral domain-optical coherence tomography (SD-OCT) revealed hyperreflective aberrations within photoreceptor-associated bands. In short-wavelength fundus autofluorescence (SW-AF) images, speckled hyperautofluorescence and mottling indicated macular involvement. In both the affected individuals and their asymptomatic carrier parents, reduced SW-AF intensities, measured as quantitative fundus autofluorescence (qAF), indicated chronic impairment in 11-cis-retinal availability and provided information on mutation severity. Hypertransmission of the SD-OCT signal into the choroid together with decreased near-infrared autofluorescence (NIR-AF) provided evidence for retinal pigment epithelial cell (RPE) involvement. In Rlbp1/Cralbp−/− mice, reduced 11-cis-retinal levels, qAF and NIR-AF intensities, and photoreceptor loss were consistent with the clinical presentation of the affected siblings. These findings indicate that RLBP1 mutations are associated with progressive disease involving RPE atrophy and photoreceptor cell degeneration. In asymptomatic carriers, qAF disclosed previously undetected visual cycle deficiency.

Cone photoreceptors in the retina enable vision over a wide range of light intensities. However, the processes enabling cone vision in bright light (i.e. photopic vision) are not adequately understood. Chromophore regeneration of cone photopigments may require the retinal pigment epithelium (RPE) and/or retinal Müller glia. In the RPE, isomerization of all-trans-retinyl esters to 11-cis-retinol is mediated by the retinoid isomerohydrolase Rpe65. A putative alternative retinoid isomerase, dihydroceramide desaturase-1 (DES1), is expressed in RPE and Müller cells. The retinol-isomerase activities of Rpe65 and Des1 are inhibited by emixustat and fenretinide, respectively. Here, we tested the effects of these visual cycle inhibitors on immediate, early, and late phases of cone photopic vision. In zebrafish larvae raised under cyclic light conditions, fenretinide impaired late cone photopic vision, while the emixustat-treated zebrafish unexpectedly had normal vision. In contrast, emixustat-treated larvae raised under extensive dark-adaptation displayed significantly attenuated immediate photopic vision concomitant with significantly reduced 11-cis-retinaldehyde (11cRAL). Following 30 min of light, early photopic vision was recovered, despite 11cRAL levels remaining significantly reduced. Defects in immediate cone photopic vision were rescued in emixustat- or fenretinide-treated larvae following exogenous 9-cis-retinaldehyde supplementation. Genetic knockout of Des1 (degs1) or retinaldehyde-binding protein 1b (rlbp1b) did not eliminate photopic vision in zebrafish. Our findings define molecular and temporal requirements of the nonphotopic or photopic visual cycles for mediating vision in bright light.

28 April 2020

This paper aims to assist the region’s local authorities, and their key foreign backers, in understanding how transitional justice can provide alternative avenues for holding local ISIS members to account while contributing to the healing of communities.

Research Event

Haid Haid, Senior Consulting Fellow, Middle East and North Africa Programme, Chatham House
Sara Kayyali, Syria Researcher, Middle East and North Africa Division, Human Rights Watch
Moderator: Lina Khatib, Director, Middle East and North Africa Programme, Chatham House

The formation of translationally inactive 70S dimers (called 100S ribosomes) by hibernation-promoting factor is a widespread survival strategy among bacteria. Ribosome dimerization is thought to be reversible, with the dissociation of the 100S complexes enabling ribosome recycling for participation in new rounds of translation. The precise pathway of 100S ribosome recycling has been unclear. We previously found that the heat-shock GTPase HflX in the human pathogen Staphylococcus aureus is a minor disassembly factor. Cells lacking hflX do not accumulate 100S ribosomes unless they are subjected to heat exposure, suggesting the existence of an alternative pathway during nonstressed conditions. Here, we provide biochemical and genetic evidence that two essential translation factors, ribosome-recycling factor (RRF) and GTPase elongation factor G (EF-G), synergistically split 100S ribosomes in a GTP-dependent but tRNA translocation-independent manner. We found that although HflX and the RRF/EF-G pair are functionally interchangeable, HflX is expressed at low levels and is dispensable under normal growth conditions. The bacterial RRF/EF-G pair was previously known to target only the post-termination 70S complexes; our results reveal a new role in the reversal of ribosome hibernation that is intimately linked to bacterial pathogenesis, persister formation, stress responses, and ribosome integrity.

pncRNA-D is an irradiation-induced 602-nt long noncoding RNA transcribed from the promoter region of the cyclin D1 (CCND1) gene. CCND1 expression is predicted to be inhibited through an interplay between pncRNA-D and RNA-binding protein TLS/FUS. Because the pncRNA-D–TLS interaction is essential for pncRNA-D–stimulated CCND1 inhibition, here we studied the possible role of RNA modification in this interaction in HeLa cells. We found that osmotic stress induces pncRNA-D by recruiting RNA polymerase II to its promoter. pncRNA-D was highly m6A-methylated in control cells, but osmotic stress reduced the methylation and also arginine methylation of TLS in the nucleus. Knockdown of the m6A modification enzyme methyltransferase-like 3 (METTL3) prolonged the half-life of pncRNA-D, and among the known m6A recognition proteins, YTH domain-containing 1 (YTHDC1) was responsible for binding m6A of pncRNA-D. Knockdown of METTL3 or YTHDC1 also enhanced the interaction of pncRNA-D with TLS, and results from RNA pulldown assays implicated YTHDC1 in the inhibitory effect on the TLS–pncRNA-D interaction. CRISPR/Cas9-mediated deletion of candidate m6A site decreased the m6A level in pncRNA-D and altered its interaction with the RNA-binding proteins. Of note, a reduction in the m6A modification arrested the cell cycle at the G0/G1 phase, and pncRNA-D knockdown partially reversed this arrest. Moreover, pncRNA-D induction in HeLa cells significantly suppressed cell growth. Collectively, these findings suggest that m6A modification of the long noncoding RNA pncRNA-D plays a role in the regulation of CCND1 gene expression and cell cycle progression.

The formation of translationally inactive 70S dimers (called 100S ribosomes) by hibernation-promoting factor is a widespread survival strategy among bacteria. Ribosome dimerization is thought to be reversible, with the dissociation of the 100S complexes enabling ribosome recycling for participation in new rounds of translation. The precise pathway of 100S ribosome recycling has been unclear. We previously found that the heat-shock GTPase HflX in the human pathogen Staphylococcus aureus is a minor disassembly factor. Cells lacking hflX do not accumulate 100S ribosomes unless they are subjected to heat exposure, suggesting the existence of an alternative pathway during nonstressed conditions. Here, we provide biochemical and genetic evidence that two essential translation factors, ribosome-recycling factor (RRF) and GTPase elongation factor G (EF-G), synergistically split 100S ribosomes in a GTP-dependent but tRNA translocation-independent manner. We found that although HflX and the RRF/EF-G pair are functionally interchangeable, HflX is expressed at low levels and is dispensable under normal growth conditions. The bacterial RRF/EF-G pair was previously known to target only the post-termination 70S complexes; our results reveal a new role in the reversal of ribosome hibernation that is intimately linked to bacterial pathogenesis, persister formation, stress responses, and ribosome integrity.

In cyanobacteria, metabolic pathways that use the nitrogen-rich amino acid arginine play a pivotal role in nitrogen storage and mobilization. The N-terminal domains of two recently identified bacterial enzymes: ArgZ from Synechocystis and AgrE from Anabaena, have been found to contain an arginine dihydrolase. This enzyme provides catabolic activity that converts arginine to ornithine, resulting in concomitant release of CO2 and ammonia. In Synechocystis, the ArgZ-mediated ornithine–ammonia cycle plays a central role in nitrogen storage and remobilization. The C-terminal domain of AgrE contains an ornithine cyclodeaminase responsible for the formation of proline from ornithine and ammonia production, indicating that AgrE is a bifunctional enzyme catalyzing two sequential reactions in arginine catabolism. Here, the crystal structures of AgrE in three different ligation states revealed that it has a tetrameric conformation, possesses a binding site for the arginine dihydrolase substrate l-arginine and product l-ornithine, and contains a binding site for the coenzyme NAD(H) required for ornithine cyclodeaminase activity. Structure–function analyses indicated that the structure and catalytic mechanism of arginine dihydrolase in AgrE are highly homologous with those of a known bacterial arginine hydrolase. We found that in addition to other active-site residues, Asn-71 is essential for AgrE's dihydrolase activity. Further analysis suggested the presence of a passage for substrate channeling between the two distinct AgrE active sites, which are situated ∼45 Å apart. These results provide structural and functional insights into the bifunctional arginine dihydrolase–ornithine cyclodeaminase enzyme AgrE required for arginine catabolism in Anabaena.

Research Event

Haid Haid, Senior Consulting Fellow, Middle East and North Africa Programme, Chatham House
Sara Kayyali, Syria Researcher, Middle East and North Africa Division, Human Rights Watch
Moderator: Lina Khatib, Director, Middle East and North Africa Programme, Chatham House

AE Christian
Nov 1, 1997; 38:2264-2272
Articles

28 April 2020

This paper aims to assist the region’s local authorities, and their key foreign backers, in understanding how transitional justice can provide alternative avenues for holding local ISIS members to account while contributing to the healing of communities.

Research Event

Haid Haid, Senior Consulting Fellow, Middle East and North Africa Programme, Chatham House
Sara Kayyali, Syria Researcher, Middle East and North Africa Division, Human Rights Watch
Moderator: Lina Khatib, Director, Middle East and North Africa Programme, Chatham House

pncRNA-D is an irradiation-induced 602-nt long noncoding RNA transcribed from the promoter region of the cyclin D1 (CCND1) gene. CCND1 expression is predicted to be inhibited through an interplay between pncRNA-D and RNA-binding protein TLS/FUS. Because the pncRNA-D–TLS interaction is essential for pncRNA-D–stimulated CCND1 inhibition, here we studied the possible role of RNA modification in this interaction in HeLa cells. We found that osmotic stress induces pncRNA-D by recruiting RNA polymerase II to its promoter. pncRNA-D was highly m6A-methylated in control cells, but osmotic stress reduced the methylation and also arginine methylation of TLS in the nucleus. Knockdown of the m6A modification enzyme methyltransferase-like 3 (METTL3) prolonged the half-life of pncRNA-D, and among the known m6A recognition proteins, YTH domain-containing 1 (YTHDC1) was responsible for binding m6A of pncRNA-D. Knockdown of METTL3 or YTHDC1 also enhanced the interaction of pncRNA-D with TLS, and results from RNA pulldown assays implicated YTHDC1 in the inhibitory effect on the TLS–pncRNA-D interaction. CRISPR/Cas9-mediated deletion of candidate m6A site decreased the m6A level in pncRNA-D and altered its interaction with the RNA-binding proteins. Of note, a reduction in the m6A modification arrested the cell cycle at the G0/G1 phase, and pncRNA-D knockdown partially reversed this arrest. Moreover, pncRNA-D induction in HeLa cells significantly suppressed cell growth. Collectively, these findings suggest that m6A modification of the long noncoding RNA pncRNA-D plays a role in the regulation of CCND1 gene expression and cell cycle progression.

Research Event

Event participants

Charu Lata Hogg, Associate Fellow, Asia-Pacific Programme, Chatham House
Hameed Hakimi, Research Associate, Asia-Pacific Programme and Europe Programme, Chatham House
Chair: Champa Patel, Head of Asia-Pacific Programme, Chatham House

Researcher: Jim Papadopoulos, Northeastern University
Description: Jim Papadopoulos talks about his years of research analyzing bicycles.

S. Waleed Noor and Osmar R. Severiano
Proc. Amer. Math. Soc. 148 (2020), 2469-2476.
Abstract, references and article information

In cyanobacteria, metabolic pathways that use the nitrogen-rich amino acid arginine play a pivotal role in nitrogen storage and mobilization. The N-terminal domains of two recently identified bacterial enzymes: ArgZ from Synechocystis and AgrE from Anabaena, have been found to contain an arginine dihydrolase. This enzyme provides catabolic activity that converts arginine to ornithine, resulting in concomitant release of CO2 and ammonia. In Synechocystis, the ArgZ-mediated ornithine–ammonia cycle plays a central role in nitrogen storage and remobilization. The C-terminal domain of AgrE contains an ornithine cyclodeaminase responsible for the formation of proline from ornithine and ammonia production, indicating that AgrE is a bifunctional enzyme catalyzing two sequential reactions in arginine catabolism. Here, the crystal structures of AgrE in three different ligation states revealed that it has a tetrameric conformation, possesses a binding site for the arginine dihydrolase substrate l-arginine and product l-ornithine, and contains a binding site for the coenzyme NAD(H) required for ornithine cyclodeaminase activity. Structure–function analyses indicated that the structure and catalytic mechanism of arginine dihydrolase in AgrE are highly homologous with those of a known bacterial arginine hydrolase. We found that in addition to other active-site residues, Asn-71 is essential for AgrE's dihydrolase activity. Further analysis suggested the presence of a passage for substrate channeling between the two distinct AgrE active sites, which are situated ∼45 Å apart. These results provide structural and functional insights into the bifunctional arginine dihydrolase–ornithine cyclodeaminase enzyme AgrE required for arginine catabolism in Anabaena.

pncRNA-D is an irradiation-induced 602-nt long noncoding RNA transcribed from the promoter region of the cyclin D1 (CCND1) gene. CCND1 expression is predicted to be inhibited through an interplay between pncRNA-D and RNA-binding protein TLS/FUS. Because the pncRNA-D–TLS interaction is essential for pncRNA-D–stimulated CCND1 inhibition, here we studied the possible role of RNA modification in this interaction in HeLa cells. We found that osmotic stress induces pncRNA-D by recruiting RNA polymerase II to its promoter. pncRNA-D was highly m6A-methylated in control cells, but osmotic stress reduced the methylation and also arginine methylation of TLS in the nucleus. Knockdown of the m6A modification enzyme methyltransferase-like 3 (METTL3) prolonged the half-life of pncRNA-D, and among the known m6A recognition proteins, YTH domain-containing 1 (YTHDC1) was responsible for binding m6A of pncRNA-D. Knockdown of METTL3 or YTHDC1 also enhanced the interaction of pncRNA-D with TLS, and results from RNA pulldown assays implicated YTHDC1 in the inhibitory effect on the TLS–pncRNA-D interaction. CRISPR/Cas9-mediated deletion of candidate m6A site decreased the m6A level in pncRNA-D and altered its interaction with the RNA-binding proteins. Of note, a reduction in the m6A modification arrested the cell cycle at the G0/G1 phase, and pncRNA-D knockdown partially reversed this arrest. Moreover, pncRNA-D induction in HeLa cells significantly suppressed cell growth. Collectively, these findings suggest that m6A modification of the long noncoding RNA pncRNA-D plays a role in the regulation of CCND1 gene expression and cell cycle progression.

The formation of translationally inactive 70S dimers (called 100S ribosomes) by hibernation-promoting factor is a widespread survival strategy among bacteria. Ribosome dimerization is thought to be reversible, with the dissociation of the 100S complexes enabling ribosome recycling for participation in new rounds of translation. The precise pathway of 100S ribosome recycling has been unclear. We previously found that the heat-shock GTPase HflX in the human pathogen Staphylococcus aureus is a minor disassembly factor. Cells lacking hflX do not accumulate 100S ribosomes unless they are subjected to heat exposure, suggesting the existence of an alternative pathway during nonstressed conditions. Here, we provide biochemical and genetic evidence that two essential translation factors, ribosome-recycling factor (RRF) and GTPase elongation factor G (EF-G), synergistically split 100S ribosomes in a GTP-dependent but tRNA translocation-independent manner. We found that although HflX and the RRF/EF-G pair are functionally interchangeable, HflX is expressed at low levels and is dispensable under normal growth conditions. The bacterial RRF/EF-G pair was previously known to target only the post-termination 70S complexes; our results reveal a new role in the reversal of ribosome hibernation that is intimately linked to bacterial pathogenesis, persister formation, stress responses, and ribosome integrity.

The Advisory Committee on Recycling Fund today announced the launch of the One-off Recycling Industry Anti-epidemic Scheme.

The scheme aims to help the recycling industry cope with the current economic situation and operational difficulties brought by the COVID-19 epidemic.

Around $100 million has been earmarked for implementing the scheme under Enterprise Support Programme, providing financial support for the operational costs of recyclers for six months.

The maximum funding limit for each recycler is $20,000 per month.

The funding period will cover from January 1 to June 30, making a total maximum subsidy of $120,000.

The scheme opens for application from today until June 30. Recyclers with operations on or before January 1 can apply.

The first instalment related to the subsidy for the first three months will be available from April onwards and the rest of the subsidy will be disbursed in the middle of this year.

The committee also decided to extend the earlier launched One-off Rental Support Scheme for another six months.

The scheme, which has been accepting applications for six months of rental support starting from October 2019, will now be extended to September 2020.

Upon the extension, the maximum funding limit for each recycler will be 50% of the rental or $25,000 per month, whichever is lower.

The maximum rental funding limit will be raised to $300,000.

Application eligibility and requirements remain unchanged while the deadline has been extended to September 30.

Call 2788 5658 or email enquiry@recyclingfund.hk for more information.

The Government today said the first batch of subsidies amounting to $5.6 million under two relief measures for recyclers has been disbursed, while $5.6 million in subsidies had been approved under a management sector support scheme.

The two Recycling Fund measures aim to help the recycling industry cope with the current economic situation and recent operational difficulties arising from the COVID-19 epidemic.

The Advisory Committee on Recycling Fund announced in mid-March to reserve $100 million to launch the One-off Recycling Industry Anti-epidemic Scheme.

The scheme provides timely financial support to help with recyclers’ operational costs for six months. The funding limit for each recycler is $20,000 per month from January 1 to June 30, or $120,000 in total maximum subsidy.

The committee has also allocated additional funds to extend the earlier-launched One-off Rental Support Scheme for another six months, providing a total funding of $200 million to fight the virus and help the recycling industry ride out the difficult times.

The rental support scheme, which benefits street-corner recycling shops and recycling sites, originally ran from October to March. It has been extended for six months until September this year, totalling 12 months.

The monthly rental subsidy for each recycler is capped at $25,000, setting the maximum total rental subsidy at $300,000.

Separately, the Anti-epidemic Support Scheme for Property Management Sector has approved 205 applications involving around $5.6 million in subsidies to benefit more than 1,500 building blocks.

The relevant property management companies and owners’ organisations will receive notifications for subsidy disbursement shortly.

The list of properties for which applications have been approved is available online.

Briefing sessions were held earlier to introduce the scheme to the property management sector and owners’ organisations.

The maximum monthly rental subsidy for each recycler under the One-off Rental Support Scheme will be increased from $25,000 to $37,500, the Environmental Protection Department announced today.

To help the recycling industry cope with the current economic situation and operational difficulties due to the COVID-19 epidemic, the Recycling Fund has allocated $50 million in additional funds to raise the scheme’s subsidy level.

The fund has now earmarked up to $250 million in total funding to fight the virus and help the recycling industry ride out difficult times.

On April 15, the Advisory Committee on Recycling Fund agreed to strengthen support under the scheme by increasing the rental assistance from 50% to 75% for the subsidy period from April to September.

The maximum monthly rental subsidy for each recycler will be increased to $37,500, while the maximum total rental subsidy for the 12 months will be increased from $300,000 to $375,000.

The scheme was launched last year to benefit about 500 street-corner recycling shops and 400 recycling sites.

In the face of current economic difficulties, the fund announced in February an extension of the subsidy period from six months to 12 months, lasting until September.     

As of April 9, the scheme has approved 103 applications, involving subsidies of more than $20 million.

The application deadline for the scheme is September 30. Enquiries can be made to 2788 5658 or via email.

(University of Barcelona) The yellow-legged gull has a high ability to adapt to human activities and benefit from these as a food resource during all year. This is stated in a scientific article published in the journal Ecology and Evolution whose first author is the researcher Francisco Ramírez, from the Faculty of Biology and the Biodiversity Research Institute (IRBio) of the University of Barcelona.