One small Ohio town designed a butterfly garden as a symbol of recovery for former flood land and for people who have struggled with addiction.

Ann Patchett answers a question from the Wild Card deck and discusses how her feelings about God and her Catholic faith have changed over the years.

Imagine stepping into a world where towering columns of rock stretch towards the sky, each shrouded in a veil of greenery and mist. This is not the realm of fantasy. This is Zhangjiajie National Forest Park in China, a place where nature’s artistry is on grand display. With landscapes so surreal, it’s no wonder that this park became a source of inspiration for the visually stunning world of Pandora in the movie “Avatar.” Zhangjiajie’s unique landscape is more than just a feast for the eyes; it’s a gateway to an adventure that promises to be as enchanting as it is exhilarating. From the ethereal beauty of its towering sandstone pillars to the deep, serene forests that blanket their bases, the park offers a tapestry of natural wonders waiting to be explored. This article is designed to be your comprehensive guide to navigating the spellbinding beauty of Zhangjiajie National Park. Whether you’re planning a visit or just dreaming of a journey to this otherworldly destination, we’ll take you through the heart of its magic, offering insights and tips to ensure your experience is as unforgettable as the landscape itself. Welcome to the gateway of a real-life Pandora, where the wonders of Zhangjiajie await. Is Zhangjiajie Worth Visiting? Address the central question directly Absolutely. Zhangjiajie Forest Park in China is a marvel of natural beauty that captivates all who visit. Its ethereal landscape is not just a visual treat but a soul-enriching experience. Highlight the park’s most distinctive features Quartzite Pillars: These towering, slender columns are the park’s signature feature. They rise dramatically from the ground, creating a surreal landscape that inspired the floating mountains in the movie “Avatar.” Diverse Flora and Fauna: Home to a rich biodiversity, the park shelters various species of plants and animals, some of which are rare and endemic to the region. Unique Karst Formations: The area showcases a fascinating range of karst phenomena, from deep ravines and gorges to natural bridges and caves, sculpted over millions of years. Briefly mention outdoor activities available Hiking: Trails wind through the park, offering routes for all abilities. They lead through dense forests, past serene streams, and up to breathtaking viewpoints. Cable Car Rides: For those who wish to take in the scenery without the hike, cable cars provide a stunning aerial view of the park. Sightseeing: Designated platforms and bridges offer spectacular vistas of the pillars, especially enchanting at sunrise or sunset. Planning Your Trip to Zhangjiajie Seasons Ideal Time to Visit: The best times to visit are spring (April to June) and fall (September to November). These seasons offer comfortable weather and the beauty of the park in full bloom or in the midst of autumnal colors. Peak vs. Shoulder Seasons: Summer (July and August) is peak tourist season, making the park more crowded. Winter sees fewer visitors, offering a quieter experience, albeit with cooler temperatures. Getting There Major Airports Nearby: The closest airport is Zhangjiajie Hehua International Airport, with connections to major Chinese cities. Transportation from Surrounding Cities: Buses and trains from cities like Changsha provide access to Zhangjiajie, making it reachable from various parts of China. Getting Around Shuttles: The park operates shuttle buses that connect different areas, making it easy to explore without excessive walking. Cable Cars and Elevators: To navigate the steep terrain, cable cars and the famous Bailong Elevator offer convenient and scenic rides. Walking Paths: For those who prefer to explore on foot, well-marked paths lead through the stunning scenery, allowing for an immersive experience. Must-See Sights in Zhangjiajie National Park Zhangjiajie National Park, a UNESCO World Heritage site, offers an array of natural wonders and cultural insights. Below are some of the must-see attractions within the park. Zhangjiajie National Forest The heart of Zhangjiajie’s magic lies in its iconic quartzite pillars, rising majestically from the earth. These formations are so unique that they inspired the floating “Hallelujah Mountains” in the blockbuster movie “Avatar.” The Avatar Hallelujah Mountain scenic area within the park pays homage to this connection, allowing visitors to step into a world that feels straight out of a science fiction fantasy. Tianzi Mountain Tianzi Mountain offers sweeping panoramic views that are unparalleled in their beauty. The area is renowned for its: Unique rock formations: The mountain’s landscape is dotted with towering pillars, each shaped by the forces of nature over millions of years. Points of interest: Notable spots include the Emperor Sightseeing Platform and Tianzi Pavilion, from where visitors can gaze out over an ocean of mist-enshrouded peaks. Huangshi Village (Yellow Lion Village) This traditional village offers a glimpse into the culture of the Tujia minority, showcasing their customs, architecture, and way of life. Huangshi Village is also celebrated for its: Cultural significance: The village is a living museum of Tujia traditions. Sunrise views: The location provides spectacular sunrise vistas, making it a favorite spot for early risers and photographers alike. Bailong Elevator The Bailong Elevator holds the record as the world’s highest outdoor elevator, whisking visitors up the side of a cliff face for an exhilarating ride. Highlights include: Breathtaking views: As you ascend, panoramic views of the surrounding landscape unfold, offering a unique perspective on the park’s natural beauty. Activities in Zhangjiajie National Park Zhangjiajie National Park is a playground for nature lovers, offering a plethora of activities that allow visitors to immerse themselves in its breathtaking landscapes. From challenging hikes to scenic cable car rides, there’s something for everyone in this majestic park. Hiking Hiking is undoubtedly one of the best ways to experience the natural beauty of Zhangjiajie National Park. The park boasts a range of trails that cater to various fitness levels, offering everyone the chance to explore its unique terrain. Golden Whip Stream: This trail is perfect for those who prefer a leisurely hike. It meanders alongside a crystal-clear stream, flanked by towering sandstone pillars. Bailong Elevator Path: For a more challenging adventure, the path leading from the base to the top of the Bailong Elevator allows hikers to experience the park’s verticality. This trail offers stunning views and a vigorous workout. Cable Car Rides For those who wish to take in the scenery without the physical exertion of hiking, cable car rides provide a spectacular alternative. Scenic Views: Cable cars glide over the park, offering panoramic views of the verdant landscapes and quartzite pillars that make Zhangjiajie so famous. Accessibility: This mode of transportation makes the park’s breathtaking beauty accessible to all, including those who may find hiking challenging. Photography Zhangjiajie National Park is a paradise for photographers, boasting an array of photogenic spots that capture the essence of its natural wonders. Photogenic Spots: Iconic locations like the Avatar Hallelujah Mountain and Tianzi Mountain offer unforgettable scenes for photography enthusiasts. Photography Tips: To capture the park’s landscapes at their best, aim for the golden hours of sunrise and sunset when the light casts a magical glow over the pillars and valleys. Essential Tips for Visitors to Zhangjiajie National Park Planning a trip to Zhangjiajie National Park can be an exciting adventure. To ensure a smooth and enjoyable experience, consider these essential tips covering accommodation, budget, weather, and other considerations. Accommodation Zhangjiajie offers a range of accommodation options to suit different preferences and budgets: Inside the Park: For a fully immersive experience, several hotels and guesthouses are located within the park itself. Staying here allows you to start exploring early in the morning before the crowds arrive. Outside the Park: The city of Zhangjiajie and nearby Wulingyuan offer more accommodation choices, from budget hostels to luxury hotels. These areas provide easy park access and additional dining options. Budget Understanding the costs associated with your visit can help you plan effectively: Park Entrance Fees: Entrance fees to the park vary by season, generally ranging from 225 to 245 RMB. Transportation: Costs will vary depending on your mode of travel within and to the park. Local buses and shuttle services are economical options. Food: Dining costs can vary widely, but budget-friendly options are available, especially in the city and at food stalls near the park. Accommodation: Prices range significantly based on location and comfort level. Budget accommodations start from around 100 RMB per night, while luxury options can exceed 1000 RMB. Weather and Clothing Zhangjiajie experiences distinct seasons, which can influence what you pack: Spring/Fall: These mild seasons require light layers that can be adjusted throughout the day. Summer: The weather can be hot and humid. Lightweight, breathable clothing and rain gear are advisable. Winter: Cold temperatures demand warm clothing and layers. Additional Considerations To enhance your trip, keep these tips in mind: Currency Exchange: It’s advisable to exchange some currency into RMB (Chinese Yuan) before arriving, especially for purchases in smaller shops and rural areas. Language Barriers: While Mandarin Chinese is the primary language, having a translation app or phrasebook can be invaluable. Some tourism workers speak basic English. Etiquette: Respect local customs and etiquette. For example, queue politely, speak respectfully, and ask permission before taking photos of locals. Conclusion Zhangjiajie National Park stands as a testament to nature’s artistry, offering a unique blend of breathtaking landscapes and rich cultural heritage. From the towering quartzite pillars that inspired the landscapes of “Avatar” to the serene beauty of its vast forests, the park provides an unparalleled adventure for nature lovers and adventurers alike. The diverse range of activities, from hiking the rugged trails to peaceful cable car rides, ensures that every visitor can find their own way to connect with this extraordinary place. We encourage you to plan your trip to Zhangjiajie and experience its magic firsthand. Witnessing the park’s majestic beauty and immersing yourself in its enchanting atmosphere is an adventure that promises to be unforgettable. FAQ How much time do I need to spend in Zhangjiajie? To truly appreciate the main highlights of Zhangjiajie National Park, we recommend spending a minimum of 2-3 days. This allows ample time to explore the iconic landscapes, take part in various activities, and soak in the natural beauty of the park. Is Zhangjiajie safe to visit? Yes, Zhangjiajie is safe for visitors. Like any travel destination, it’s wise to take basic precautions, stay on marked paths, and follow park guidelines to ensure a safe and enjoyable visit. What language is spoken in Zhangjiajie? The primary language spoken in Zhangjiajie is Mandarin Chinese. While some tourism resources and staff might be available in English, learning a few basic Mandarin phrases can enhance your experience. Are there any festivals or events held in Zhangjiajie? Zhangjiajie hosts various festivals and events throughout the year, celebrating the rich cultural traditions of the region. These can include traditional Tujia festivals, which are a fantastic way to experience local customs and entertainment. What are some local delicacies I should try? Zhangjiajie offers a variety of local delicacies that reflect its rich culinary tradition. Some must-try dishes include Tujia sour fish soup and flavorful stews, which are sure to provide a memorable dining experience.

The post Exploring the Enchantment of Zhangjiajie National Park: A Comprehensive Guide appeared first on Geeky Traveller.

Sam Koch looked like he was playing very, very badly. In fact, he was changing one of sport's strangest positions for ever.

The rise of these treatments has major implications for how we think about obesity, says James Gallagher.

Marketing rules will be stricter, nicotine vapes will be taxed and disposable vapes will be banned.

The Olympic cycling champion, who has terminal cancer, wants more younger men to get checked.

The panel of 28 felt it was important to give people choice, but only if they were terminally ill.

A proposed law would give terminally ill people the right to choose to end their life.

A new study shows that the record-breaking rainfall was made more likely and intense by climate change.

The world is wildly off track in tackling climate change, the UN says, as CO2 in the atmosphere accumulates faster than ever

Human-caused climate change made recent extreme weather events more intense and more likely, new analysis finds.

Have we reached a point where consuming alcohol is not only normal, but expected?

Vinay Menon knew nothing about football when he went for a meeting at a west London mansion in 2009. A few weeks later he was in the heart of the Chelsea dressing room.

velocityconf: RT @courtneynash: Bill Scott's #fluentconf keynote theme also rings true re #velocityconf: tech change is really about people/culture change

If you have several iPhone’s, as many people do when they buy a new iPhone, upgrade, get a hand-me-down, develop iPhone software, or develop mobile sites or apps where you test things on multiple devices, you might be in a situation where iPhone Mirroring on the Mac is using an iPhone that you do not ... Read More

Meta is taking the European Union a little more seriously, as the EU has requested the US-based company to put… Continue reading Meta and the EU butt heads again amid changes to ads

The post Meta and the EU butt heads again amid changes to ads appeared first on ReadWrite.

Communications and Digital Technology Minister Solly Malatsi will issue a policy direction on equity alternatives to the 30% equity employment rule in the communications industry.

A quick note to point you toward this piece I wrote for P&G’s Signal publication. Since its inception, I’ve been co-editor of the monthly outlet, which covers innovation in large enterprise. This month I went in search of proof that the hype around generative AI – fueled in large part by both Google and Microsoft … Continue reading "Can GenAI Change Big Companies?"

Mark Fisher was co-founder of the Rhode Island chapter of BLM. He voted for Joe Biden in 2020. Does he have buyers remorse? Yeah, you could say so. His viral video is causing a stir... but there's more to that story.

The post Former BLM Chapter Co-Founder Switches To Trump In ’24 … What Changed His Mind? appeared first on Clash Daily.

Three years ago, Chris Wallace walked away from Fox News over concerns that those at the “Fair and Balanced” network were beginning to, as he put it, “question the truth.” […]

The post CNN Host Reportedly Leaving Network After Short-Lived Stay: His Career Change Is Completely Absurd appeared first on The Western Journal.

Americans will only achieve healthy public discourse when we agree on basic principles and start telling the truth. As it stands, however, too many elected officials engage in hypocrisy by […]

The post Dem Lawmaker Says the Quiet Part Out Loud as She Suddenly Changes Her Tune on the Senate Filibuster appeared first on The Western Journal.

Digital politics threatens democracy and must change Expert comment NCapeling 13 January 2023

Violence in Brazil has again brought into focus the need for technology platforms to prioritize social responsibility to help prevent anti-democratic action.

Immediately following the violent storming of Brazil’s congressional building, supreme court, and presidential palace, comparisons to the infamous events of 6 January 2021 in the US came quickly and easily – and with good reason.

Both Donald Trump and Jair Bolsonaro built a fervent – albeit inchoate – political base of grievance which included Christian evangelicals, gun enthusiasts, and the disenfranchised. Both cynically spread doubts about the election victories of their successors without evidence. And it has been claimed both incited their supporters to overturn these results.

But this list of similarities extend beyond mere politics. The attack on democracy in Brazil was recorded, amplified, coordinated, and funded by exactly the same technologies used by the protesters in the US on 6 January.

In Brazil, the main engines of misinformation and insurrection planning were Telegram, Facebook, and WhatsApp, although some election-denying diehards also shifted to Twitter.

Tactical use of social media to mobilize and fundraise

When Bolsonaro was originally elected in 2018, these platforms were already a medium for promoting disinformation, conspiracy, and fear. But in the lead-up to the violence of 8 January, they became a means by which ‘Bolsonaristas’ raised funding for an attack and mobilized supporters to come to Brasilia – advertising the availability of buses and even free food for marchers – using the Festa da Selma hashtag.

To avoid detection by authorities, organizers used a simple switch of the letter ‘v’ to ‘m’ so that Selva, meaning ‘jungle’, became Selma – which means ‘party in the jungle’ to those in the know. But the authorities in the Brasilia state of Distrito Federal appeared to care little about preventing the attack anyway.

Civil society organizations have warned for decades that policies made in a Silicon Valley boardroom fit poorly to the realities of countries such as Brazil, Somalia, or Myanmar. Content moderation is a near-impossible task at the scale demanded by platforms as vast as those operated by big tech, and automated solutions are far from being a silver bullet as they create as many problems as they solve.

Extremism has found an unfettered enabler on mainstream platforms, and an increasingly sprawling network of alternative tech has made such voices resilient to challenge. Platforms such as Gettr, Gab, and Telegram have become go-to platforms for extremist networks when fringe voices find themselves blocked by mainstream platforms.

Telegram has come under significant scrutiny for the role it played in the storming of Congress in Brasilia but any number of tools and platforms – each with millions of users – could have achieved similar results.

The sordid events in Brasilia are just the latest chapter in digital extremism and conspiracy- mongering which often erupts into anti-democratic violence, and should serve as a reminder of the urgent risks of disinformation and the role digital technology plays in inciting, coordinating, fundraising, and amplifying such events.

But the checks on the power of private social media companies are still few and splintered. In Brazil, Supreme Court Justice Alexandre de Moraes, head of the elections tribunal, attempted to crack down on social media, banning users for spreading misinformation in a move which sparked complaints of censorship from Bolsonaro supporters.

Following the elections, Moraes has advocated for greater judicial authority to regulate social media – but the justice is only one person and his impartiality is already being challenged given his aggressive pursuit of Bolsonaro supporters posting inflammatory messages.

And one justice doing it alone only inflames an already volatile situation. Effective regulation of social media requires an independent body vested with multiparty support and operating under clearly-defined rules and authority.

A global movement to find solutions

Brazil is not alone in an increasingly frantic search for checks on digital power as dozens of regulatory regimes are springing up around the world. All are premised on platforms being responsible for their own fiefdoms, but few tackle the threat posed to democracy by unchecked corporate power over digital commons.

Well-intentioned regulation will fall short so long as it is narrowly focused on a never-ending game of ‘content whack-a-mole’ and is hamstrung by powerful voices who see any rules as an attack on freedoms of expression or corporate decision-making.

Democracies are traditionally cautious in managing speech, in separating good information from bad information, or in defining acceptable politics. The steady watering down of the UK’s Online Safety Bill, now so thin on disinformation as to be essentially homeopathic, shows that democratic regulation is willing to go only so far in tackling challenges posed by digital politics.

Lys234 is one of the residues present in class A β-lactamases that is under selective pressure due to antibiotic use. Located adjacent to proton shuttle residue Ser130, it is suggested to play a role in proton transfer during catalysis of the antibiotics. The mechanism underpinning how substitutions in this position modulate inhibitor efficiency and substrate specificity leading to drug resistance is unclear. The K234R substitution identified in several inhibitor-resistant β-lactamase variants is associated with decreased potency of the inhibitor clavulanic acid, which is used in combination with amoxicillin to overcome β-lactamase–mediated antibiotic resistance. Here we show that for CTX-M-14 β-lactamase, whereas Lys234 is required for hydrolysis of cephalosporins such as cefotaxime, either lysine or arginine is sufficient for hydrolysis of ampicillin. Further, by determining the acylation and deacylation rates for cefotaxime hydrolysis, we show that both rates are fast, and neither is rate-limiting. The K234R substitution causes a 1500-fold decrease in the cefotaxime acylation rate but a 5-fold increase in kcat for ampicillin, suggesting that the K234R enzyme is a good penicillinase but a poor cephalosporinase due to slow acylation. Structural results suggest that the slow acylation by the K234R enzyme is due to a conformational change in Ser130, and this change also leads to decreased inhibition potency of clavulanic acid. Because other inhibitor resistance mutations also act through changes at Ser130 and such changes drastically reduce cephalosporin but not penicillin hydrolysis, we suggest that clavulanic acid paired with an oxyimino-cephalosporin rather than penicillin would impede the evolution of resistance.

How the world has changed on my watch The World Today mhiggins.drupal 25 May 2022

As Robin Niblett steps down from his role as Director of Chatham House he reflects on the past 15 years of international affairs

International relations had resumed a steadier rhythm in January 2007 when I became Director of Chatham House. The aftershock of the 2001 terrorist attacks on the United States and the Bush administration’s contentious responses in Iraq and its ‘global war on terror’ had settled down somewhat.

That year President George W Bush’s second administration was mending fences with its European allies. China’s GDP growth hit a three-decade peak of 14 per cent, and the idea that this could drive a ‘win-win’ economic cycle did not yet grate. Financial regulators had not woken up to the credit crisis that they had enabled. And the European Union was still obsessed with ‘widening versus deepening’, while Britain tried to have its cake and eat it on the sidelines.

With hindsight, 2007 acted as the fulcrum between a cautiously optimistic post-Cold War world and the contested environment we live in today. Russian President Vladimir Putin chose that year’s Munich Security Conference to deliver a tirade against the injustices of a US-led world, with arguments that presaged this year’s invasion of Ukraine.

By the start of 2008, Alan Greenspan’s belief in the rationality of financial markets turned out to be a fallacy as US and European banks imploded. The subsequent economic turmoil, followed by monetary easing and fiscal austerity, sowed the seeds for the populist politics that emerged on both sides of the Atlantic.

Nevertheless, world leaders did not give up on the promise of international cooperation. The global financial crisis led to the elevation of the G20 as the premier forum for coordinating global economic policy between the world’s major economies.

By 2015, with Barack Obama in the White House, two landmark deals were reached: the Paris Agreement and the Joint Comprehensive Plan of Action, an example of truly global cooperation between all five permanent members of the UN Security Council. The next year, China’s first female chair of the Foreign Affairs Committee of the National People’s Congress, Fu Ying, pointed to a ‘decentralization of world power’ that might lead to a more inclusive world order.

But this sense of relative optimism about the future masked two fundamental changes. The first was the erosion of the cohesion of democratic societies under the pressures of globalization and the aftershocks of the financial crisis.

Instant access to unintermediated and often manipulated information ended up stimulating and polarizing societies in equal measure, deepening the divide between those searching for the certainties of the past and those open to the uncertainties of a more globalized future.

The second change is the end of the global hierarchy that followed the Second World War, in which the US and the West remained at the top, even with the advent of a more polycentric world. This change is driven by several factors, above all the growing economic and technological parity between China and the US, and by America’s schizophrenic response.

The Obama administration sought to restore a more inclusive form of global leadership, but it unwittingly revealed the limits of US power by breaking its red lines over Bashir al-Assad’s use of chemical weapons in Syria and by turning a blind eye to China’s takeover of disputed islands in the South China Sea. Donald Trump’s America First policies then flipped the US into an overbearing version of other self-interested powers. After this zigzagging by the US, leaders in the Middle East have developed their own assertive foreign policies, while two nascent democracies in Southeast Asia, Thailand and Myanmar, are again ruled by military juntas.

EU leaders became obsessed with the idea of strategic autonomy. And, although Joe Biden’s election was welcomed across most of Europe, it could not assuage concerns about the potentially transitory nature of his claim that ‘America is back’.

Putin has seized on this moment of transatlantic uncertainty and post-Covid navel-gazing to try to create a personal legacy as the leader who reunited a greater Russia out of the rubble of the Soviet Union. Instead, he has united Ukrainians and reunited the world’s liberal democracies in opposition to his brutal invasion and blatant rupture of international law. His actions have also drawn the contours of a new, trilateral international system.

Some 40 democracies across North America, Europe and the Indo-Pacific now see Putin and Xi Jinping – given China’s rhetorical support for Putin’s invasion – as interconnected threats to their long-term security. They are organizing to resist, using a re-energized Nato, new structures for Indo-Pacific cooperation and cross-linkages between these two spheres. For their part, Putin and Xi, though not formal allies, are tied together by each one’s need that the other survives and prospers while they are in confrontation with the liberal democracies.

The third, largest and most diverse group of countries are the newly non-aligned. India stands proudly in the foreground, but other major democracies such as Brazil, Indonesia and South Africa, and non-democracies such as Egypt and Vietnam, are triangulating strategically between the world’s dominant democratic and authoritarian poles. Multilateral institutions will be weaker as a result.

Does this more divided world presage major conflict between the great powers? Hopefully not; after all, nuclear weapons remain a potent deterrent. Does global division herald the end of economic globalization and of the international cooperation needed to manage shared global challenges? Not necessarily.

While Russia will be excluded from liberal democratic markets for as long as Putin is in the Kremlin, China’s reliance on global markets and the importance of its market to the world make it unlikely that we will return to a new Cold War. Global supply chains and foreign investment will be more tightly circumscribed than today, but they will persist. And international cooperation to combat climate change and manage the environment will continue.

Meanwhile, technological innovation will accelerate, opening new prospects for sustainable development and employment, even as it sharpens the facets of geopolitical competition. And we may soon cross the tipping point at which women hold a critical mass of positions of political and community leadership in many parts of the world. Given that male leaders are, once again, the instigators of the latest spasms of violence, a more gender-balanced approach to leadership holds the prospect of greater political stability and more inclusive and sustainable development.

As I step down as Chatham House Director, I find myself torn between fury at the senseless human tragedy of a drawn-out war in Ukraine and the way its spillover effects are devastating the welfare of hundreds of millions across the globe, and hope that human courage, resilience and ingenuity will nevertheless sustain us on the path to a better future.

I am reassured in this by the knowledge that Chatham House’s researchers, professional staff and increasingly diverse membership mean that it is well placed to help decision-makers and societies navigate this complex world.

SNF Dialogues: Social media, social movements and political change 6 July 2022 — 2:30PM TO 3:45PM Anonymous (not verified) 15 June 2022 Online

Experts and activists explore how the digital world has changed the nature of social movements and the impact this has on policymaking.

From Extinction Rebellion to Black Lives Matter, social movements are increasingly harnessing social media to project their calls for action. This event, convened in partnership with the SNF Dialogues series, will reflect on the value of social media to social movements and the effects of such digital movements on policymakers. Experts and activists from around the world will explore whether social media is an effective tool for social movements or a distraction, the extent to which digital forms of protest incite social change, and finally if this change has an impact on policy decisions.

The SNF Dialogues, an initiative of the Stavros Niarchos Foundation (SNF), are a series of monthly discussions whose goal is to foster the exchange of ideas, inspire a new way of thinking and acting, and encourage and elevate public discourse across geographic boundaries. The Dialogues discussions are free and open to the public, aiming to bring to light timely questions and developments, share informed reflections and concerns, highlight new data and angles, and present fascinating people, projects and ideas.

The Dialogues are curated and moderated by Anna-Kynthia Bousdoukou and are facilitated by the non-profit journalism organization iMEdD (incubator for Media Education and Development).

The discussion will be conducted in English with simultaneous interpretation into Greek. If you wish to watch the discussion in Greek, tune in here.

Grassroots to global: Young changemakers against violence 24 October 2024 — 3:00PM TO 4:00PM Anonymous (not verified) 11 October 2024 Chatham House

As part of Black History Month, this event will look at how youth activism against violence can influence change.

To address the alarming increase knife crime, a 10% rise in knife-related homicides between April 2022 and March 2023, the UK government launched a coalition of community leaders, campaigners and policy makers to tackle this tragic loss of life.

With people under 25 disproportionately affected, the ‘knife crime epidemic’ represents an example of how youth activist groups are central to tackling the problem. Organisations for and operated by young people form a key part of the strategy to ensure people are better protected from violent crime.

Around the world, a network of youth groups are similarly striving to make a difference and build a better life for future generations. Operating in different political and economic conditions, there are learnings to be found in groups working across the world.

This session will discuss how grassroot activism and youth organisations can influence governments to prevent young people falling into crime, the role of race and religion, and whether organisations are improving in their effectiveness around the world.

This event is a collaboration with Integrate UK.

The killing of Yahya Sinwar won’t change the course of the Gaza war Expert comment jon.wallace 18 October 2024

Israel has larger ambitions for Gaza beyond the Hamas leader’s death and the armed group is still asserting its influence despite its degradation.

After a year of being hunted as one of the most wanted men in the Middle East, Hamas leader Yahya Sinwar was killed by Israeli forces on 17 October, in the city of Rafah in the Gaza Strip.

Hailing from Khan Younis refugee camp, Sinwar was imprisoned in Israel in 1989 for the abduction and killing of two Israeli soldiers. He was freed alongside 1,000 other prisoners during a major 2011 exchange, gradually building a notorious reputation as an intelligent and ruthless political figure.

As Hamas’ Gaza chief since 2017, Sinwar oversaw the consolidation of the movement’s authoritarian rule in the Strip and co-directed its military confrontations with Israel. He is regarded as a chief architect of Hamas’ deadly assault of 7 October, which killed 1,200 Israelis, mostly civilians, in southern communities.

Many world leaders and pundits were quick to embrace Sinwar’s death as an opportunity to press for a ceasefire in Gaza and secure the release of roughly 100 Israeli hostages still held by Hamas and other groups. It is too early to know the full repercussions of this development, but these hopes are largely misplaced – and reflect a reluctance to confront the larger obstacles and motivations that are preventing an end to the war.

Morale amid aimlessness

For Israelis, Sinwar’s death is undoubtedly a morale booster. It is a symbolic victory over a man deemed responsible for the 7 October massacres, and a tactical success that rids Israel of a formidable foe – one who was also an invested ally of Iran and the Axis of Resistance. Israeli politicians and generals will relish the news as another step towards restoring their reputations after their failure to prevent the 7 October attack.

Yet contrary to some wishful thinking, Sinwar’s death is unlikely to change Israel’s calculus in Gaza. Prime Minister Benjamin Netanyahu, whose popularity has been slowly recovering in recent months, described the news as ‘the beginning of the end’ but warned that ‘the task before us is not yet complete’.

The intensification of Israel’s war with Hezbollah – including a ground invasion of Lebanon, airstrikes across the country, and the displacement of over 1 million people – has shifted Israelis’ focus away from Gaza over the past month, especially as Hezbollah rockets disrupt life in Israel’s central cities as well as the north.

During that time, the Israeli army has begun a major offensive in the northern part of the Strip, implementing what appears to be the first part of the so-called ‘General’s Plan’ – an operation to besiege and force out roughly 300,000 Palestinian civilians who remain in the area. It could also pave the way for Israel’s absorption of part of the territory. (Israel’s military has denied pursuing the plan).

As such, the Israeli government has relegated the importance of the hostages. Netanyahu is eager to divert the public’s frustration with his months-long sabotage of a deal, while the military – despite its clashes with the prime minister – is seizing the chance to redraw Israel’s geopolitical environment. Even if a deal is struck in the wake of Sinwar’s death, Israel’s bombing and carving-up of Gaza and south Lebanon will likely continue.

Dynamic but degraded

For Hamas, the killing of its fiery politburo chief – just over two months after the assassination of his predecessor Ismail Haniyeh in Tehran – is certainly a blow to its leadership and internal stability. But the Islamist movement’s dynamism has not changed. Hamas’s decision-making processes are not pegged to specific individuals, and other figures, whether in Gaza or in exile, will be rotated into senior positions.

It is unclear whether Hamas will promote a leader who shares Sinwar’s hardline orientation, or drift back to a more moderate figure similar to Haniyeh. Regardless, Hamas’s core demands in any ceasefire and hostage negotiations are unlikely to shift significantly. The movement is still seeking a permanent end to the war, and Israel is still refusing to grant it.

Hamas’s military capacity has been severely degraded by the Israeli offensive, not least by the fact that much of Gaza has been made unliveable and ungovernable. But the movement is far from destroyed. Its militants continue to fight a guerrilla war to undermine Israel’s foothold in Gaza, while trying to reassert Hamas control over public order, the war economy, and the distribution of aid.

Moreover, as the history of movements like Hamas and Hezbollah shows, the devastating nature of Israel’s campaigns and occupations are planting the seeds for further militancy among Palestinians, whether organized under Hamas or smaller, decentralized groups. The war has brutally decimated Gaza’s society, and the notion that killing figures like Sinwar will dissuade future recruits to fight Israel is fanciful.

On the Palestinian political level, Hamas and Fatah are still in talks about forming a unity agreement, though negotiations have so far remained fruitless. Even if a pact is made, Israel’s relentless targeting of Hamas personnel, the perception of the Fatah-led Palestinian Authority (PA) as feckless collaborators, and Palestinians’ feeling of total abandonment raise doubts about the parties’ ability to regain popular support or legitimacy – whether to lead an interim government or the wider national movement.

The gravest threat

The killing of Sinwar is a significant marker in the Gaza war, with important ramifications for the movement he led and the conflict he seismically shaped. Israel will portray his death as validation of its aggressive military approach, and a further step in the erosion of Iran’s regional influence – an agenda the US has actively supported.

JP Segrest
Feb 1, 1992; 33:141-166
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Geopolitical corporate responsibility can drive change Expert comment NCapeling 26 July 2022

Russia’s long invasion of Ukraine is testing the commitment of business, but this could see the emergence of a new pillar of support for the rules-based international order.

The massive exit of more than 1,000 international companies from Russia has surpassed – by a factor of nearly ten in merely four months – the number which pulled out of apartheid-led South Africa over an entire decade.

These company exits extend beyond those industries targeted for sanctions – oil and gas, banks and financial services, aerospace, and certain technology sectors – to include hundreds in consumer products ranging from Levi’s and H&M clothing to Coca-Cola and McDonalds. Many of these companies may wish to return to a post-conflict – or post-Putin – Russia, while a few have already sold their Russian operations, as McDonald’s has to an existing Siberian licensee.

Both reputational and operational factors are driving the huge exodus: reputational as companies have chosen to disassociate themselves from Putin’s regime; operational as transportation routes and supply chains have been interrupted.

Few of these companies have made explicit the principles at stake, while many still face ‘tricky legal, operational and ethical considerations’ and some have kept operations in place. But the collective impact of the exit in response to Russia’s affront to international law has sent shockwaves around the world.

Current issues and future implications

Minds now turn to whether this exodus sets a blueprint for the future, and how companies having to make complex and sensitive risk assessments and global business planning decisions can address both current issues as well as similar future challenges.

The new Declaration from the Business for Ukraine Coalition – an international civil society initiative of organizations and individuals – encourages companies to reinforce ‘responsible exit’ from Russia ‘in response to its unprovoked, full-scale war on Ukraine’.

The declaration’s objective is to ‘block access to the economic and financial resources enabling Russian aggression’ and it urgently calls on companies that have terminated or suspended their business operations and relationships to ‘stand by those commitments until the territorial sovereignty of Ukraine within internationally recognized borders is restored.’

It also states companies yet to terminate or suspend operations in Russia should do so unless they can demonstrate through due diligence that their provision of ‘essential’ services or products – such as medicines – meet critical humanitarian needs.

The 2022 Edelman Trust Barometer Special Report: The Geopolitical Business suggests Ukraine represents an inflection point posing ‘a new test’ for business. According to an online survey of 14,000 respondents in 14 countries, including employees, NGOs, and other stakeholders, there is a ‘rising call’ for business to be more engaged in geopolitics, with CEOs ‘expected to shape policy’ on societal and geopolitical issues.

Such expectations have been intensifying with the impetus of the combined stakeholder capitalism and corporate purpose agenda, even as a political backlash in the US against the environmental, social, and governance (ESG) movement linking institutional investors and multinational corporations gains momentum.

The emergence of corporate activism is a further development – partly driven by employees and accelerated during the pandemic – on issues of economic inequality, racial injustice, and gender equality, as well as the climate crisis.

When considering what broader purpose should drive this corporate geopolitical engagement, the Business for Ukraine Declaration offers an answer, calling Russia’s aggression ‘an attack on the rules-based international order which must be protected to ‘safeguard the international community and the global economy.’

This points to broader interests and values at stake in the Russian war on Ukraine because supporting the rules-based international order can become the basis of a new geopolitical corporate responsibility. Business, especially multinational corporations and institutional investors, fundamentally depend on and have enormously benefitted from this order.

Economic development needs a stable rules-based international order

Trade and investment, entrepreneurship, and innovation – the sinews of economic development – depend on predictable, rational behaviour by states at home and abroad. Individual companies and entire industries share a stake in upholding this order at a time when its stability and even legitimacy is undergoing a severe challenge.

The rules-based international order has evolved since the adoption of the UN Charter in 1945, the Universal Declaration of Human Rights in 1948, and the establishment of the standards, norms and institutions that reflect and reinforce these lodestars. It defines the international community, the rule of law, accountable governance, civic freedoms, and human rights within nations. It also supports national self-determination, sovereignty, and the disavowal of the use of force to alter borders among nations, and it provides accountability for genocide, crimes against humanity, and war crimes.

Business has a fundamental stake in the international order as the framework for stability, prosperity, open societies, and markets.

A new geopolitical corporate responsibility does not need to become a doctrine but can instead be an agenda to support the international rules-based order under stress. Such an agenda may help multinationals deal with expectations they already face, such as:

Avoiding situations where they cause, contribute, or are directly linked to human rights abuses. This objective is enshrined in the UN Guiding Principles on Business and Human Rights and companies can be further informed by the new UN Guide to Heightened Human Rights Due Diligence for Business in Conflict-Affected Contexts.

Committing to the ‘shared space’ of the rule of law, accountable governance, civic freedoms, and human rights. These are both the enablers of civil society and the underpinning of sustainable and profitable business and investment environments. The Chatham House synthesis paper The role of the private sector in protecting civic space sets forth the rationale for companies to defend these vital elements.

Supporting peace, justice, and strong institutions both within nations and across the international community as set forth by UN Sustainable Development Goal 16. The SDG 16 Business Framework: Inspiring Transformational Governance shows how companies, as well as national governments and international institutions, can contribute to these building blocks of stability and prosperity.

Demonstrating corporate responsibility at the national and geopolitical levels to enhance equity, transparency, and accountability. Multinationals are already challenged to accept minimum corporate taxation within and across jurisdictions, curb excessive executive compensation, endorse mandatory disclosure of environmental and human rights due diligence, and strengthen corporate governance of ESG risks and responsibilities, including with respect to human rights.

Diminishing inequality by tackling poverty and ensuring sustainability by arresting the climate crisis. Alongside governments and international institutions, the business community already faces increasing pressure to improve its efforts in these areas.

Seven ways Russia’s war on Ukraine has changed the world Feature jon.wallace 17 February 2023

Chatham House experts examine the shifts in geopolitical alliances, security, energy, and supply chains and whether these changes are likely to be long-lasting.

President Vladimir Putin’s decision to launch a full-scale re-invasion of Ukraine one year ago was a global shock which ‘marked an abrupt end to 30 years of globalization and all the international co-operation that made that possible’ with serious implications for countries around the world, outlined Chatham House director Bronwen Maddox in her inaugural lecture.

Not only has the war threatened the stability of Europe but it has also impacted food and energy security globally including in the Middle East and Africa, creating shock waves in a world barely recovering from the COVID-19 pandemic.

Environmental Change and Emerging Diseases 28 October 2020 — 3:00PM TO 4:00PM Anonymous (not verified) 13 October 2020 Online

Understanding how environmental changes are directly and indirectly affecting the emergence and spread of disease has assumed global importance.

There is growing awareness that deforestation and land-use conversion, urbanization, human migration, international commerce, and climate change are having significant impacts on human health, but their impact on increasing infectious disease risks has only become more evident with the coronavirus pandemic.

With climate change, and environmental change more generally, disrupting ecologies, and people interacting with wildlife in new ways, it creates the conditions for new diseases to emerge: a better understanding of the health dimensions of environmental change will be critical to managing pandemic risks in future. 

Our event will examine the relationship between environmental change and disease, how these linkages have manifested in historical outbreaks and in the coronavirus pandemic, and the role of environmental policies in minimizing the risk of future emerging diseases.  What can be done to ensure equitable action? What can we learn from our responses to previous pandemics? And will the growing recognition of the diverse risks arising from climate change motivate more climate action?

This event will launch the Energy, Environment and Resources (EER) Programme’s Environment and Society Discussion Series. This series aims to provide a platform to promote interdisciplinary knowledge sharing and policy dialogue to mitigate and adapt to the impacts that climate change, biodiversity loss and natural resource depletion are having on people and communities globally, and on geopolitics, security and international development.

Sign up to find out about more events in this series here. 

Climate Change and the Pacific: Impacts and Adaptation 27 November 2018 — 8:30AM TO 10:00AM Anonymous (not verified) 14 November 2018 Royal Academy of Arts

Identification of antibody-binding epitopes is crucial to understand immunological mechanisms. It is of particular interest for allergenic proteins with high cross-reactivity as observed in the lipid transfer protein (LTP) syndrome, which is characterized by severe allergic reactions. Art v 3, a pollen LTP from mugwort, is frequently involved in this cross-reactivity, but no antibody-binding epitopes have been determined so far. To reveal human IgE-binding regions of Art v 3, we produced three murine high-affinity mAbs, which showed 70–90% coverage of the allergenic epitopes from mugwort pollen–allergic patients. As reliable methods to determine structural epitopes with tightly interacting intact antibodies under native conditions are lacking, we developed a straightforward NMR approach termed hydrogen/deuterium exchange memory (HDXMEM). It relies on the slow exchange between the invisible antigen-mAb complex and the free 15N-labeled antigen whose 1H-15N correlations are detected. Due to a memory effect, changes of NH protection during antibody binding are measured. Differences in H/D exchange rates and analyses of mAb reactivity to homologous LTPs revealed three structural epitopes: two partially cross-reactive regions around α-helices 2 and 4 as well as a novel Art v 3–specific epitope at the C terminus. Protein variants with exchanged epitope residues confirmed the antibody-binding sites and revealed strongly reduced IgE reactivity. Using the novel HDXMEM for NMR epitope mapping allowed identification of the first structural epitopes of an allergenic pollen LTP. This knowledge enables improved cross-reactivity prediction for patients suffering from LTP allergy and facilitates design of therapeutics.

The online media changing African news The World Today mhiggins.drupal 2 August 2022

Africa’s news sites are gripping audiences with digital innovation and bold directions. Helen Fitzwilliam talks to editors at three platforms.

Lydia Namubiru
News editor of ‘The Continent’ (South Africa)

At the start of the pandemic, we realized a lot of fake news was being shared on WhatsApp. So, The Continent chose to launch on that platform to insert some real journalism in a way that could easily be shared. We now have about 100,000 readers across Africa and the rest of the world, but we had to dramatically change the way we write and edit stories: to compete with the likes of Twitter and Instagram, we try to keep stories tight at 300 words. 

There’s a real variety. We can run an investigation into corruption in the Democratic Republic of the Congo a week after a front page on the fashion designer who dresses Africa’s ‘big men’ [powerful leaders]. We cover feminist issues, the backlash against LGBT people in Ghana; we’ve had the Namibian first lady talking to us about misogyny. These are not the sort of topics a typical African newspaper is going to lead with.

With a story such as Ukraine, the war’s impact on the cost of living has been the most obvious angle for us. It has driven countries such as Malawi into crisis, forcing a devaluation of the currency.
 
As for the future, we see two issues looming. Workers’ economic rights and their treatment by multinationals will be a big story. There are refugees in camps in Kenya working in data operations and being paid a pittance to help create huge, potentially multimillion-dollar systems for US companies. 

Second, Africa has the world’s youngest population and the oldest leaders, so this will likely lead to activism and protests. The young are exposed to the global village, so they want different things and have different values. They speak a completely different language their leaders do not understand. It will be an interesting conflict, but could lead to real violence. 

John Githongo
Editor of ‘The Elephant’ (Kenya)

We set up this platform four years ago. Due to political and commercial pressures, mainstream media wasn’t doing much critical reporting. We have between 30,000 and 80,000 readers a week, the majority of them in Africa. 

The digital space reaches a completely different demographic. When The Elephant started, it was 80 per cent male and over 40, but we have gained more younger people and more women. Now it is 60 per cent men, 40 per cent women and that is something we have been working at. 

Our editorial approach is that as long as a piece has a strong argument and fits into our pan-African brief, we will publish it – even if we don’t agree with it.

The conflicts in Ethiopia and parts of the Sahel make the war in Ukraine pale in comparison. So many people have died in Ethiopia or been displaced and now we have the onset of a famine after four years of failed rain. During the 1960s and 1970s, when the Cold War found its way on to African soil, millions of people died – so there is caution about getting involved in a European fight.

There is always a lot of fake news around during elections. But people are beginning to be more sceptical. We go after those who attempt to change the level of debate with reputation-laundering and try to expose their actions. 
 
The future of democracy is going to be a big issue. When Africans were watching the attack on the US Capitol last year, they were hoping it was not a Black Lives Matter protest, which could have resulted in a ‘blackbath’. As soon as they saw the white guys wearing horns, people laughed with relief. 

There is an ongoing recalibration of Africa’s geopolitical relations with the rest of the world. A poll released in June showed China has overtaken the United States as the foreign power having the biggest positive influence in Africa in the eyes of young people across the continent. The younger generation is writing its own narrative. 

Wale Lawal
Editor of ‘The Republic’ (Nigeria)

Nigerian audiences are increasingly online and tend to read both local and international publications. They also know that the issues they care about are either under-reported or reported at lower quality levels. 

At The Republic, we provide political journalism that tends to require high levels of expertise. Yet online audiences also prioritize engagement: it is not enough for an issue to be important, it also needs to be interesting.

Some topics we have covered that Western media tend not to include how people experience blackness in different parts of the world; the waves of mostly female-led and youth-led movements rising up against autocratic governments across Africa; and relationships between countries within Africa itself. In the early days of the pandemic, we launched a Covid-19 and Africa series, having noticed a glaring lack of African expert voices in global media.
 
We also cover Africa’s evolving relations with Russia. Whenever we encounter a story like Russia’s invasion of Ukraine, the first thing we always ask ourselves is what missing voice can we add to the current discussion? All we were reading about after the invasion was how neighbouring countries were opening their borders and their homes to Ukrainians. Most people saw only that. 

But we knew that around 15,000 Africans were studying in Ukraine, that Africans routinely face harsh treatment at international borders, and that clearly their voices were missing from the discussion.

With fake news and information gaps on social media, our usual approach is to develop expert-led columns and circulate these as widely as possible.

Our next mission is to think about the role that independent media can play in supporting democracies, such as by increasing voter turnout. During the last election in Nigeria, less than 35 per cent of those who registered to vote eventually did so.

A natural climate change priority for Africa Expert comment LJefferson 28 September 2022

Nature-based solutions can protect African nations’ shared natural endowment and meet the needs of their people.

Africa’s principal climate change negotiators have long understood the important contribution of ‘nature-based solutions’ (NBS) in delivering land (and sea) based options as part of the goals of the Paris Agreement. Limiting temperature rises to only 1.5°C by 2050 will demand finding innovative ways to protect Africa’s vast natural endowment that also meets the equally acute needs of its people. Nature-based solutions may do both.

The urgency for Africa cannot be overstated. At a Chatham House conference in Libreville, the Gabonese minister for the environment highlighted that if global warming surges by 2.5° or 3°C the impact would be at least 6°C for Africa. Decision-makers on the continent and across the world need to understand that ‘business as usual’ cannot be an option given the potential for loss of life, conflict and chaos.

Adaption, mitigation, or both?

Although adaptation to climate change has hitherto tended to be the continent’s main concern, there has also been growing recognition of the ways that Africa’s natural environments, from forests and grasslands, to peatlands and coastal and marine ecosystems, all also mitigate its impacts by sequestering carbon. The Congo Basin alone is said to store upwards of 4 per cent of global emissions annually.

These environments are under increasing pressure. Deforestation is a sad reality, caused mostly by unsustainable and extensive agricultural practices focused on cash crops for export more than food production to feed local populations. And arguing that African states and peoples should slow the development of their economies and infrastructure in response to a crisis born of the already-industrialized world does not find a responsive audience in a continent hungry for jobs and opportunity.

Nature-based solutions offer an answer to this conundrum. There is growing evidence that natural habitats both help avoid losses from climate change-related disasters and can drive economic growth. There is thus potential for NBS to tackle both adaptation and mitigation challenges at relatively low cost.

NBS – the rocky road from commitment to policy

It was logical therefore for Africa and like-minded countries to work to integrate NBS more strongly into the climate change agenda at COP26. The final Glasgow Climate Pact duly emphasized the importance of protecting ecosystems. The Global Forest Finance Pledge signed in the margins was also significant. African focus, with COP 27 in Egypt soon to take place, is now on domestic implementation and delivery of these pledges. The new African Union Climate Change and Resilient Development strategy (2022-2032) sets out many of the challenges and opportunities.

Choosing the right development pathway is tough, requiring political will and inclusive governance. Besides the challenge of securing alternative national revenue if a country moves away from fossil-intensive fuels – particularly acute for Africa’s resource-producing states – there is a dizzying array of policy decisions to be taken. African governments need to choose the most appropriate renewable energy sources, secure alternative livelihoods and continue to meet basic needs of the most vulnerable in the context of radical restructuring.  

Towards African solutions

There can be no one-size-fits-all answer to these questions – it is sadly still necessary to underline the enormous geographic, cultural and political diversity of the continent – but African experts have begun to draw together some emerging common themes from work already underway.  

Maintaining the ‘status quo’ in agricultural practices is no longer an option. Emphasis on sustainable agriculture is urgently needed andthat includes the elaboration of a ‘new deal’ between nature and people.  

Conservation also needs to be reframed as an economic opportunity, particularly in the elaboration and development of ecosystem services that deliver the true value of Africa’s forests, and that involve, value and reward local communities, respecting their rights and livelihoods.

Regional cooperation is likewise key, including on the management of forest, wildlife and water resources – Africa’s ecosystems do not respect arbitrary political boundaries, and accomplishing the dual feat of protecting cross-border systems at the same time as realizing their economic potential will demand effective collaboration, as well as training, education and communication at all levels.

The imperative of finance

A further imperative will be securing sufficient developed country financing – whether that be to secure value for net sequestration and effective forest management or for models of context-appropriate ‘smarter’ sustainable rural conservation and ecosystem resilience.

Researchers use dynamic PET imaging with target-selective tracer molecules to probe molecular processes. Kinetic models have been developed to describe these processes. The models are typically fitted to the measured PET data with the assumption that the brain is in a steady-state condition for the duration of the scan. The end results are quantitative parameters that characterize the molecular processes. The most common kinetic modeling endpoints are estimates of volume of distribution or the binding potential of a tracer. If the steady state is violated during the scanning period, the standard kinetic models may not apply. To address this issue, time-variant kinetic models have been developed for the characterization of dynamic PET data acquired while significant changes (e.g., short-lived neurotransmitter changes) are occurring in brain processes. These models are intended to extract a transient signal from data. This work in the PET field dates back at least to the 1990s. As interest has grown in imaging nonsteady events, development and refinement of time-variant models has accelerated. These new models, which we classify as belonging to the first, second, or third generation according to their innovation, have used the latest progress in mathematics, image processing, artificial intelligence, and statistics to improve the sensitivity and performance of the earliest practical time-variant models to detect and describe nonsteady phenomena. This review provides a detailed overview of the history of time-variant models in PET. It puts key advancements in the field into historical and scientific context. The sum total of the methods is an ongoing attempt to better understand the nature and implications of neurotransmitter fluctuations and other brief neurochemical phenomena.

The divalent anion sodium symporter (DASS) family (SLC13) plays critical roles in metabolic homeostasis, influencing many processes, including fatty acid synthesis, insulin resistance, and adiposity. DASS transporters catalyze the Na+-driven concentrative uptake of Krebs cycle intermediates and sulfate into cells; disrupting their function can protect against age-related metabolic diseases and can extend lifespan. An inward-facing crystal structure and an outward-facing model of a bacterial DASS family member, VcINDY from Vibrio cholerae, predict an elevator-like transport mechanism involving a large rigid body movement of the substrate-binding site. How substrate binding influences the conformational state of VcINDY is currently unknown. Here, we probe the interaction between substrate binding and protein conformation by monitoring substrate-induced solvent accessibility changes of broadly distributed positions in VcINDY using a site-specific alkylation strategy. Our findings reveal that accessibility to all positions tested is modulated by the presence of substrates, with the majority becoming less accessible in the presence of saturating concentrations of both Na+ and succinate. We also observe separable effects of Na+ and succinate binding at several positions suggesting distinct effects of the two substrates. Furthermore, accessibility changes to a solely succinate-sensitive position suggests that substrate binding is a low-affinity, ordered process. Mapping these accessibility changes onto the structures of VcINDY suggests that Na+ binding drives the transporter into an as-yet-unidentified conformational state, involving rearrangement of the substrate-binding site–associated re-entrant hairpin loops. These findings provide insight into the mechanism of VcINDY, which is currently the only structurally characterized representative of the entire DASS family.