Net Zero and Beyond: What Role for Bioenergy with Carbon Capture and Storage? 23 January 2020 — 8:30AM TO 10:00AM Anonymous (not verified) 6 January 2020 Chatham House | 10 St James's Square | London | SW1Y 4LE

In the context of the feasibility of reducing greenhouse gas emissions to net zero, policymakers are beginning to pay more attention to options for removing carbon dioxide from the atmosphere. A wide range of potential carbon dioxide removal (CDR) options are currently being discussed and modelled though the most prominent among them are bioenergy with carbon capture and storage (BECCS) and afforestation and reforestation.

There are many reasons to question the reliance on BECCS assumed in the models including the carbon balances achievable, its substantial needs for land, water and other inputs and technically and economically viable carbon capture and storage technologies.

This meeting will examine the potentials and challenges of BECCS in the context of other CDR and emissions abatement options. It will discuss the requisite policy and regulatory frameworks to minimize sustainability and socio-political risks of CDR approaches while also avoiding overshooting climate goals.

Attendance at this event is by invitation only.

α-Linked galactose is a common carbohydrate motif in nature that is processed by a variety of glycoside hydrolases from different families. Terminal Galα1–3Gal motifs are found as a defining feature of different blood group and tissue antigens, as well as the building block of the marine algal galactan λ-carrageenan. The blood group B antigen and linear α-Gal epitope can be processed by glycoside hydrolases in family GH110, whereas the presence of genes encoding GH110 enzymes in polysaccharide utilization loci from marine bacteria suggests a role in processing λ-carrageenan. However, the structure–function relationships underpinning the α-1,3-galactosidase activity within family GH110 remain unknown. Here we focus on a GH110 enzyme (PdGH110B) from the carrageenolytic marine bacterium Pseudoalteromonas distincta U2A. We showed that the enzyme was active on Galα1–3Gal but not the blood group B antigen. X-ray crystal structures in complex with galactose and unhydrolyzed Galα1–3Gal revealed the parallel β-helix fold of the enzyme and the structural basis of its inverting catalytic mechanism. Moreover, an examination of the active site reveals likely adaptations that allow accommodation of fucose in blood group B active GH110 enzymes or, in the case of PdGH110, accommodation of the sulfate groups found on λ-carrageenan. Overall, this work provides insight into the first member of a predominantly marine clade of GH110 enzymes while also illuminating the structural basis of α-1,3-galactoside processing by the family as a whole.

27 August 2020

Nonsmall cell lung cancer (NSCLC) is a leading cause of cancer-related deaths. While mutations in Kras and overexpression of Myc are commonly found in patients, the role of altered lipid metabolism in lung cancer and its interplay with oncogenic Myc is poorly understood. Here we use a transgenic mouse model of Kras-driven lung adenocarcinoma with reversible activation of Myc combined with surface analysis lipid profiling of lung tumors and transcriptomics to study the effect of Myc activity on cholesterol homeostasis. Our findings reveal that the activation of Myc leads to the accumulation of cholesteryl esters (CEs) stored in lipid droplets. Subsequent Myc deactivation leads to further increases in CEs, in contrast to tumors in which Myc was never activated. Gene expression analysis linked cholesterol transport and storage pathways to Myc activity. Our results suggest that increased Myc activity is associated with increased cholesterol influx, reduced efflux, and accumulation of CE-rich lipid droplets in lung tumors. Targeting cholesterol homeostasis is proposed as a promising avenue to explore for novel treatments of lung cancer, with diagnostic and stratification potential in human NSCLC.

In-depth coverage of proteomic analysis could enhance our understanding to the mechanism of the protein functions. Unfortunately, many highly hydrophobic proteins and low-abundance proteins, which play critical roles in signaling networks, are easily lost during sample preparation, mainly attributed to the fact that very few extractants can simultaneously satisfy the requirements on strong solubilizing ability to membrane proteins and good enzyme compatibility. Thus, it is urgent to screen out ideal extractant from the huge compound libraries in a fast and effective way. Herein, by investigating the interior mechanism of extractants on the membrane proteins solubilization and trypsin compatibility, a molecular dynamics simulation system was established as complement to the experimental procedure to narrow down the scope of candidates for proteomics analysis. The simulation data shows that the van der Waals interaction between cation group of ionic liquid and membrane protein is the dominant factor in determining protein solubilization. In combination with the experimental data, 1-dodecyl-3-methylimidazolium chloride (C12Im-Cl) is on the shortlist for the suitable candidates from comprehensive aspects. Inspired by the advantages of C12Im-Cl, an ionic liquid-based filter-aided sample preparation (i-FASP) method was developed. Using this strategy, over 3,300 proteins were confidently identified from 10³ HeLa cells (~100 ng proteins) in a single run, an improvement of 53% over the conventional FASP method. Then the i-FASP method was further successfully applied to the label-free relative quantitation of human liver cancer and para-carcinoma tissues with obviously improved accuracy, reproducibility and coverage than the commonly used urea-based FASP method. The above results demonstrated that the i-FASP method could be performed as a versatile tool for the in-depth coverage proteomic analysis of biological samples.

Pour de nombreuses personnes, perte de poids rime obligatoirement avec privations. Et si vous appreniez aujourd’hui que vous pouvez perdre efficacement vos kilos en trop sans pour autant vous priver excessivement ? De nombreux programmes minceur et de rééquilibrage, notamment Croq’kilos offrent ce genre d’alternative. Mais de quoi s’agit-il réellement ? C’est quoi Croq’Kilos ? Croq’Kilos […]

L’article Croq’Kilos : programme minceur, rééquilibrage alimentaire est apparu en premier sur Ortho Doc France.

Review: Rediscovering Milan Kundera’s European tragedy The World Today mhiggins.drupal 28 March 2023

The Czech writer’s 40-year-old essay on the roots of Russia’s empire-building, ‘A Kidnapped West’, reads all too presciently, writes Stefan Auer.

A Kidnapped West: The Tragedy of Central Europe
Milan Kundera, Faber, £10

‘In November 1956, the director of the Hungarian News Agency, shortly before his office was flattened by artillery fire, sent a telex to the entire world with a desperate message announcing that the Russian attack against Budapest had begun. The dispatch ended with these words: “We are going to die for Hungary and for Europe.”’ Thus, Milan Kundera began his 1983 essay for the French journal Le Débat, reflecting on the 1956 Hungarian Uprising.

A seminal essay

The Czech author might well have written a near-identical passage about the fraught hours immediately after Russia’s invasion of Ukraine in 2022. In the event, Russian tanks failed to occupy Kyiv, unlike Budapest in 1956. Nevertheless, Faber has chosen this moment, 40 years later, to republish Kundera’s seminal essay on Europe and Russian aggression in its original translation for the New York Review of Books by Edmund White. How salient are its observations today?

The essay’s original French title, ‘Un Occident kidnappé ou la tragédie de l’Europe centrale’ (The Kidnapped West, or the Tragedy of Central Europe), described the fate of Hungary, Czechoslovakia in 1968 and, to an extent, Poland in 1980-81 at the hands of the Soviet Union. Owing to the Cold War division of Europe, the countries of Central Europe were denied their true destiny, Kundera thought, to be an integral part of the liberal, democratic West. Kundera himself fled Czechoslovakia for France in 1975.

The author of The Unbearable Lightness of Being might no longer be as well-known as he was at the height of his fame in the 1980s, but his novels and essays still deserve attention. So, it is pleasing to see Kundera’s masterpiece republished, even as it is awful to witness the enduring relevance of the questions it raises.

What did the Hungarian journalist mean when he declared his willingness to die for Europe, Kundera asked? That ‘Russians, in attacking Hungary, were attacking Europe itself. He was ready to die so that Hungary might remain Hungary and European’. The journalist did indeed die in the uprising.

It is a line that President Volodymyr Zelenskyy and his supporters abroad have echoed time and again: that Ukrainian soldiers are not just dying for their country, they are dying for Europe at large.

The ‘tragedy’ in Kundera’s essay was that the West didn’t care. ‘Europe hasn’t noticed the disappearance of its cultural home,’ Kundera wrote, ‘because Europe no longer perceives its unity as a cultural unity.’

In other words, as the cultural sphere in Central Europe continued to defy the political restrictions imposed by the Soviet empire, it embodied the western values of freedom and democracy more than the West itself did. The extent to which this analysis remains relevant today will prove decisive for Europe’s future.

As timely as ever

Kundera’s essay is as timely as ever but in ways that both vindicate and challenge his key arguments. His suspicion of Russia has been validated. His frustration about the indifference of the West less so. But the true tragedy of Ukraine would be if the West has not changed sufficiently. So far, the West appears to be doing enough to enable Ukraine to defend itself, but not enough to defeat the aggressor.

Faber has made an excellent decision in combining The Tragedy of Central Europe with a lesser-known text by Kundera: his 1967 speech to the Czech Writers’ Congress given the year before the ill-fated Prague Spring. In it, Kundera addressed what was to become a lifelong preoccupation: the fate of small nations. ‘For Czechs’, Kundera wrote, ‘nothing has ever constituted an indisputable possession – neither their language nor their belonging to Europe.’

Rather than reflecting the size of its territory or population, a small nation ‘is one whose very existence can be put in question at any moment; a small nation can disappear, and it knows it.’ In this way Ukraine, Europe’s largest country, apart from Russia, is fighting to avoid the fate of Kundera’s ‘small nation’.

Historically, the ‘small’ nations of Central Europe were threatened by both Germany and Russia. But after the Second World War, the threat was from the Soviet Union, which for Kundera was indistinguishable from Russia (tacitly including Ukraine). In its expansiveness, Russia was the opposite of Central Europe. While the latter was based on the principle of ‘the greatest variety within the smallest space’, the former represented ‘the smallest variety within the greatest space’.

In this sense, authoritarian communism was the fulfilment of Russian history, Kundera argued, writing that ‘Russian communism vigorously reawakened Russia’s old anti-western obsessions and turned it brutally against Europe’. Vladimir Putin’s Russia appears to build on these same pernicious impulses.

Kundera was widely criticized for observations in his essay that smack of civilizational racism (including by me) describing Russians as fundamentally different from us: ‘Russia knows another (greater) dimension of disaster, another image of space (a space so immense that entire nations are swallowed up in it), another sense of time (slow and patient), another way of laughing, living, and dying’.

SAN JOSE, Calif., Oct. 16, 2024 — Supermicro, Inc. is launching a new optimized storage system for high performance AI training, inference and HPC workloads. This JBOF (Just a Bunch […]

The post Supermicro Introduces JBOF Storage Platform Powered by NVIDIA BlueField-3 for Scalable AI and HPC appeared first on HPCwire.

Oct. 24, 2024 — The San Diego Supercomputer Center (SDSC), part of the School of Computing, Information and Data Sciences at UC San Diego, has been leading the Open Storage Network (OSN) program for years, and along […]

The post SDSC Leads Expansion of Open Storage Network to More Campus Computing Sites appeared first on HPCwire.

SANTA CLARA, Calif., Aug. 13, 2024 — Pure Storage today announced that it joined Ultra Ethernet Consortium (UEC), a Linux Foundation initiative dedicated to building a complete, open, and accessible Ethernet-based […]

The post Pure Storage Embraces Next-Gen Networking for AI with Ultra Ethernet Consortium Membership appeared first on HPCwire.

What can be achieved using applications such as AI/ML, Deep Learning, and Big Data Analytics has been revolutionized by Magnum IO GPUDirect Storage’s capabilities. Agencies have invested in these solutions […]

The post Accelerating GPU Based Applications with NVIDIA Validated Magnum IO GPUDirect Storage and Pavilion appeared first on HPCwire.

MLCommons this week issued the results of its latest MLPerf Inference (v3.1) benchmark exercise. Nvidia was again the top performing accelerator, but Intel (Xeon CPU) and Habana (Gaudi1 and 2) […]

The post MLPerf Releases Latest Inference Results and New Storage Benchmark appeared first on HPCwire.

When storage is mentioned in an AI or Big Data analytics context, it is assumed to be a high-performance system. In practice, it may not be, and the user eventually […]

The post High-Performance Storage for AI and Analytics Panel appeared first on HPCwire.

The VDURA Data Platform is a next-generation data storage and management solution, purpose-built to meet the rigorous demands of Artificial Intelligence (AI) and High-Performance Computing (HPC). Leveraging a modern, shared-nothing […]

The post The VDURA Data Platform: Elevating Data Storage for AI and HPC appeared first on HPCwire.

SANTA CLARA, Calif. and MUNICH, Nov. 7, 2024 — Cerabyte, a pioneer of ceramic-based data storage solutions, today announced its participation at SuperComputing 2024 (SC24), taking place at the Georgia […]

The post Cerabyte Discusses Use Cases for Its Ceramic Data Storage Solution at SC24 appeared first on HPCwire.

BOISE, Idaho, Nov. 12, 2024 — Micron Technology, Inc. today announced it has begun qualification of the 6550 ION NVMe SSD with customers. The Micron 6550 ION is the world’s […]

The post Micron’s 6550 ION 60TB SSD Advances High-Capacity Storage for HPC and AI Workloads appeared first on HPCwire.

A Kentucky teen who became the subject of a viral video after a class field trip warned viewers of the Republican National Convention of an "outrage mob" that threatens to silence conservative viewpoints.

In the aftermath of last month’s killing of an unarmed Minneapolis man in police custody, school systems are re-examining their own contracts with local police agencies.

In the aftermath of last month’s killing of an unarmed Minneapolis man in police custody, school systems are re-examining their own contracts with local police agencies.

It is well established that holding information in working memory (WM) elicits sustained stimulus-specific patterns of neural activity. Nevertheless, here we provide evidence for a distinct class of neural activity that tracks the number of individuated items in working memory, independent of the type of visual features stored. We present two EEG studies of young adults of both sexes that provide robust evidence for a signal tracking the number of individuated representations in working memory, regardless of the specific feature values stored. In Study 1, subjects maintained either colors or orientations across separate blocks in a single session. We found near-perfect generalization of the load signal between these two conditions, despite being able to simultaneously decode which feature had been voluntarily stored. In Study 2, participants attended to two features with very distinct cortical representations: color and motion coherence. We again found evidence for a neural load signal that robustly generalized across these distinct visual features, even though cortically disparate regions process color and motion coherence. Moreover, representational similarity analysis provided converging evidence for a content-independent load signal, while simultaneously showing that unique variance in EEG activity tracked the specific features that were stored. We posit that this load signal reflects a content-independent "pointer" operation that binds objects to the current context while parallel but distinct neural signals represent the features that are stored for each item in memory.

In 1913, British Royalty would come in direct contact with a changing social order, thanks to a suffragette named Emily Davison. Her death at Epsom Falls would send shockwaves through the nation.

Dominic April fell in love with forging after his career in the military came to an end in 2015. Now operating a blacksmith studio near Quebec City, he hopes to help other veterans dealing with PTSD find creativity and purpose.

Hospice Northwest Services is inviting people to visit its third annual photography exhibit, "A Personal Lens on Grief." Here's what the project in Thunder Bay, Ont., entails, and why staff say it's important to find creative ways to express loss.

A recent study out of the University of Calgary estimates that more than 10 million Canadians are being exposed to high levels of radon, an odourless, tasteless radioactive gas that is the second leading cause of lung cancer in the country.

Intuitive Software Fosters Rapid Engagement with Engineering Challenges

Extensive automation of time-consuming tasks gives designers fast, accurate tools for testing their ideas

To present the true meaning of Christmas, OM Ireland’s creative arts team performs a multimedia production in schools, churches and community centres around Ireland.

Brandy and her daughter Alexia (USA) went to Ireland for a two-week outreach and left impacted just as much as they'd impacted others.

After listening to the Gospel a self-proclaimed atheist encouraged Christians to go tell others this Good News.

After a week of heavy rains in Central America, the area is left in tragedy. OM Guatemala is desperate to help.

As OM teams spread out across Pakistan, they witness God’s work in people's lives through encouragement, prayer and God’s Word.

A 20-year-old man, who suffered from addictions and domestic violence, accepted Christ into his life during the OM Mexico July outreach in Huatulco, Oaxaca.

A Crimean Tatar man shares how he gained courage and learnt vital truths through reading Into the Den of the Infidels, produced by OM EAST.

A group of Costa Ricans visit a local church in an indigenous region of the country and bring encouragement by serving.

How can you teach students to distinguish right from wrong when they see others violate moral standards shamelessly? Eminent psychologist Albert Bandura explains the perils of moral disengagement.

How to show homework isn't punishment and other effective ways to build a growth-mindset class culture during distance learning, according to research.

Since the rebirth of the OM Poliçan team in September 2010, much has been happening in and through Nicole, Liliana, Helio and Lynnette in this small, rural town in Albania.

Alumnus Pablo Lopez works to give back to Penn State and State College through his role as film production manager for the Happy Valley Adventure Bureau.

Encouragement and honesty help a local believer persevere through difficult times.

Young people in Bangladesh learn to combine sport with their love for God, and one programme participant explains his enthusiasm for the experience.