el FRET and optical trapping reveal mechanisms of actin activation of the power stroke and phosphate release in myosin V [Enzymology] By www.jbc.org Published On :: 2020-12-18T00:06:18-08:00 Myosins generate force and motion by precisely coordinating their mechanical and chemical cycles, but the nature and timing of this coordination remains controversial. We utilized a FRET approach to examine the kinetics of structural changes in the force-generating lever arm in myosin V. We directly compared the FRET results with single-molecule mechanical events examined by optical trapping. We introduced a mutation (S217A) in the conserved switch I region of the active site to examine how myosin couples structural changes in the actin- and nucleotide-binding regions with force generation. Specifically, S217A enhanced the maximum rate of lever arm priming (recovery stroke) while slowing ATP hydrolysis, demonstrating that it uncouples these two steps. We determined that the mutation dramatically slows both actin-induced rotation of the lever arm (power stroke) and phosphate release (≥10-fold), whereas our simulations suggest that the maximum rate of both steps is unchanged by the mutation. Time-resolved FRET revealed that the structure of the pre– and post–power stroke conformations and mole fractions of these conformations were not altered by the mutation. Optical trapping results demonstrated that S217A does not dramatically alter unitary displacements or slow the working stroke rate constant, consistent with the mutation disrupting an actin-induced conformational change prior to the power stroke. We propose that communication between the actin- and nucleotide-binding regions of myosin assures a proper actin-binding interface and active site have formed before producing a power stroke. Variability in this coupling is likely crucial for mediating motor-based functions such as muscle contraction and intracellular transport. Full Article
el Co-crystal structures of HIV TAR RNA bound to lab-evolved proteins show key roles for arginine relevant to the design of cyclic peptide TAR inhibitors [Molecular Biophysics] By www.jbc.org Published On :: 2020-12-04T00:06:05-08:00 RNA-protein interfaces control key replication events during the HIV-1 life cycle. The viral trans-activator of transcription (Tat) protein uses an archetypal arginine-rich motif (ARM) to recruit the host positive transcription elongation factor b (pTEFb) complex onto the viral trans-activation response (TAR) RNA, leading to activation of HIV transcription. Efforts to block this interaction have stimulated production of biologics designed to disrupt this essential RNA-protein interface. Here, we present four co-crystal structures of lab-evolved TAR-binding proteins (TBPs) in complex with HIV-1 TAR. Our results reveal that high-affinity binding requires a distinct sequence and spacing of arginines within a specific β2-β3 hairpin loop that arose during selection. Although loops with as many as five arginines were analyzed, only three arginines could bind simultaneously with major-groove guanines. Amino acids that promote backbone interactions within the β2-β3 loop were also observed to be important for high-affinity interactions. Based on structural and affinity analyses, we designed two cyclic peptide mimics of the TAR-binding β2-β3 loop sequences present in two high-affinity TBPs (KD values of 4.2 ± 0.3 and 3.0 ± 0.3 nm). Our efforts yielded low-molecular weight compounds that bind TAR with low micromolar affinity (KD values ranging from 3.6 to 22 μm). Significantly, one cyclic compound within this series blocked binding of the Tat-ARM peptide to TAR in solution assays, whereas its linear counterpart did not. Overall, this work provides insight into protein-mediated TAR recognition and lays the ground for the development of cyclic peptide inhibitors of a vital HIV-1 RNA-protein interaction. Full Article
el Multilevel interpolations for the generalized Nikishin system on a tree graph By www.ams.org Published On :: Tue, 01 Oct 2024 14:21 EDT V. G. Lysov Trans. Moscow Math. Soc. 83 (), 291-304. Abstract, references and article information Full Article
el The Gonchar–Chudnovskies conjecture and a functional analogue of the Thue–Siegel–Roth theorem By www.ams.org Published On :: Tue, 01 Oct 2024 14:21 EDT A. I. Aptekarev and M. L. Yattselev Trans. Moscow Math. Soc. 83 (), 251-268. Abstract, references and article information Full Article
el On properties of limits of solutions in the noncommutative sigma model By www.ams.org Published On :: Tue, 01 Oct 2024 14:21 EDT A. V. Domrina Trans. Moscow Math. Soc. 83 (), 201-215. Abstract, references and article information Full Article
el Existence and uniqueness result for reaction-diffusion model of diffusive population dynamics By www.ams.org Published On :: Tue, 01 Oct 2024 14:21 EDT A. Kh. Khachatryan, Kh. A. Khachatryan and A. Zh. Narimanyan Trans. Moscow Math. Soc. 83 (), 183-200. Abstract, references and article information Full Article
el On a class of degenerate hypoelliptic polynomials By www.ams.org Published On :: Tue, 01 Oct 2024 14:21 EDT H. G. Kazaryan and V. N. Margaryan Trans. Moscow Math. Soc. 83 (), 151-181. Abstract, references and article information Full Article
el Mathematical model of the spread of a pandemic like COVID-19 By www.ams.org Published On :: Tue, 01 Oct 2024 14:21 EDT A. G. Sergeev, A. Kh. Khachatryan and Kh. A. Khachatryan Trans. Moscow Math. Soc. 83 (), 55-65. Abstract, references and article information Full Article
el Minerals and Metals for a Low-Carbon Future: Implications for Developing Countries By www.chathamhouse.org Published On :: Fri, 13 Oct 2017 15:00:00 +0000 Minerals and Metals for a Low-Carbon Future: Implications for Developing Countries 30 October 2017 — 5:00PM TO 8:00PM Anonymous (not verified) 13 October 2017 Chatham House, London This roundtable will explore two sides of minerals and metals for a low-carbon future - the growing demand for metals required for low-carbon technology and the technological and policy innovations that will be required to manage the carbon footprint of the mining sector and its wider energy and industrial linkages. Based around a presentation and scenarios developed by the World Bank, this roundtable discussion will assess which strategic metals will likely rise in demand in order to deliver a low-carbon future, before exploring the possible implications for resource-rich developing countries. In particular, what does a growing demand of minerals for a clean energy future mean for governments and industry, and how might developing countries benefit from this trend? What impact might growth of the mining sector have on a sustainable and climate-smart development? Can renewable energy and other clean tech innovations in the mining industry help reduce the carbon footprint of the sector and related industries, and under what circumstances? And how fit-for-purpose are current donor approaches to the mining sector in an increasingly carbon-constrained world? Attendance at this event is by invitation only. Full Article
el Fossil Fuels Expert Roundtable: Forecasting Forum 2018 By www.chathamhouse.org Published On :: Mon, 18 Dec 2017 11:30:00 +0000 Fossil Fuels Expert Roundtable: Forecasting Forum 2018 12 February 2018 — 2:00PM TO 5:30PM Anonymous (not verified) 18 December 2017 Chatham House, London This forum will present the latest thinking from senior researchers on the dynamics that will affect fossil fuels investment and markets in the year ahead. The first session will assess the various factors keeping oil and gas prices from bouncing back and will consider conditions and political developments that could influence markets in the year ahead. The second session will assess the future of the power sector and what this means for the fossil fuels industry.Attendance at this event is by invitation only. Full Article
el Fossil Fuels Expert Roundtable: How Solar is Shaping the Energy Transition By www.chathamhouse.org Published On :: Tue, 22 May 2018 14:00:00 +0000 Fossil Fuels Expert Roundtable: How Solar is Shaping the Energy Transition 1 June 2018 — 9:00AM TO 10:30AM Anonymous (not verified) 22 May 2018 Chatham House, London As global temperatures rise and extreme weather events multiply, doubts over the reality and imminence of climate change have dissipated. Despite this, there is a clear lack of urgency by governments to the approaching crisis. At this event, Prem Shankar Jha will set out what he believes are the three main causes for this inaction.Furthermore, he will argue that catastrophic climate change is imminent, but even if it weren’t, the risk is too great to ignore. Only a complete shift from fossil fuels by 2070 at the latest would provide reasonable certainty of avoiding irreversible consequences. This transition is not only possible but the technologies to enable it were harnessed four to nine decades ago – and all of them draw their primary energy from the sun. These technologies are already capable of delivering electricity, transport fuels, and petrochemicals at prices that are competitive with the current delivered cost of electricity in the US and Western Europe. So what is holding up the energy shift?Attendance at this event is by invitation only. Full Article
el Realizing the Potential of Extractives for Industrial and Economic Development By www.chathamhouse.org Published On :: Wed, 03 Oct 2018 17:10:01 +0000 Realizing the Potential of Extractives for Industrial and Economic Development 18 October 2018 — 5:30PM TO 7:00PM Anonymous (not verified) 3 October 2018 Chatham House | 10 St James's Square | London | SW1Y 4LE Over the past two decades, the extractives industries have risen in importance for many low- and middle- income countries their prospects for economic development and poverty reduction. During a period of rising commodities prices, the development of extractives became increasingly attractive to both governments and companies. There was - and remains - much discussion about their potential to support inclusive development.However, there are also risks and uncertainties associated with the extractives industries and many things can, and do, go wrong. Fluctuations in commodity prices can be hard to manage and can lead to considerable fiscal pressures. In the longer-term, climate change and the various policy responses to this, will profoundly affect the extractives sector as renewables replace fossil fuels in the global energy mix.Managing the extractives sectors will therefore remain highly challenging especially in low-income countries where institutions are often weak. This roundtable will bring together some of the foremost academics and practitioners working in the extractives industries and also in economic development to discuss a major new UNU-WIDER study Extractive Industries: The Management of Resources as a Driver of Sustainable Development.Attendance at this event is by invitation only. Full Article
el Decarbonizing Heat: A New Frontier for Technologies and Business Models By www.chathamhouse.org Published On :: Mon, 03 Dec 2018 14:15:01 +0000 Decarbonizing Heat: A New Frontier for Technologies and Business Models 27 February 2019 — 8:15AM TO 9:45AM Anonymous (not verified) 3 December 2018 Chatham House | 10 St James's Square | London | SW1Y 4LE Building space and water heating accounts for over 35 percent of global energy consumption - nearly double that of transport. However, there has been limited progress in decarbonizing the sector to date. International cooperation is required to ensure harmonized policies drag low carbon heating technologies down the cost curve to the extent that low carbon heating is cost competitive and affordable. The initial presentations and discussion focus on:Demand reduction technologies and policies that speed up transformation of the sector. The different challenges for energy efficiency of retrofitting as opposed to new build.The impact of electrification on GHG emissions and the power sector.The comparative role of national and city level initiatives.The meeting concludes by looking at the challenges and risks in accelerating the transformation of heating and the lessons that can be learned from other sectors. Full Article
el The Electric Vehicle Revolution: Impacts on Oil Economies and Industry By www.chathamhouse.org Published On :: Mon, 03 Dec 2018 14:15:01 +0000 The Electric Vehicle Revolution: Impacts on Oil Economies and Industry 24 January 2019 — 8:15AM TO 9:45AM Anonymous (not verified) 3 December 2018 Chatham House | 10 St James's Square | London | SW1Y 4LE Electric vehicle (EV) deployment is gathering pace: the Norwegian government thinks that EV subsidies will be unnecessary by 2025 as they reach parity with diesel and petrol vehicles.China has stipulated that EVs comprise 12 per cent of vehicle sales by 2020 while more governments are committing to banning diesel and petrol vehicles.These developments are expected to be replicated as urban air pollution rises up the political agenda while technological developments and falling costs have given rise to ambitious forecasts on the increase in the deployment of EVs and the demise of the internal combustion engine.Considering this, the presentations and initial discussion focus on:The influence of new technologies on the automotive landscape, including autonomous vehicles.How the automotive and oil companies are adjusting their business models to accommodate and encourage the rise in EVs.The risks and opportunities for the deployment of EVs for incumbents and new market actors.The role of government for example in public procurement and infrastructure development.The potential for modal shift and its impact on oil demand.The discussion then seeks to explore the need for benchmarks of change including data and metrics to understand the changing risk landscape and the implications for different actors.Finally, the discussion focuses on the speed of transformation and what this means for existing and new market actors. Full Article
el Impact of the US Election on Global Climate Politics By www.chathamhouse.org Published On :: Mon, 16 Nov 2020 16:19:46 +0000 Impact of the US Election on Global Climate Politics 25 November 2020 — 1:00PM TO 2:00PM Anonymous (not verified) 16 November 2020 Online Panellists discuss how Joe Biden’s victory will impact international efforts to tackle climate change. Will climate finally become a common area for global cooperation? Joe Biden’s victory over Donald Trump is already having a positive impact on international efforts to tackle climate change. Leaders from across the world, including the UK, Canada, Australia and Fiji, have used their first messages to the President-elect to draw attention to the climate crisis. Biden has promised to re-join the global community in its commitment to the Paris Agreement – but this could be the easy part. More difficult will be whether and how Biden is able to deliver his ambitious climate plan, and how effectively he is able to integrate climate change into foreign policy efforts and national security strategies. Global climate action has also moved forward in the last four years. The European Union recently pledged to become climate neutral by 2050, and China, Japan and South Korea have committed to achieving carbon neutral economies. How will the US re-enter this global landscape of distributed leadership and what difficulties does it face? Will the US be willing to work within a competitive partnership with the EU and China? How will Biden’s win change the dynamic of COP26 next year? Full Article
el Taiwan Charts a New Course After Elections By www.chathamhouse.org Published On :: Tue, 19 Jan 2016 14:58:58 +0000 Taiwan Charts a New Course After Elections Expert comment sysadmin 19 January 2016 The resounding victory for the opposition marks a decisive break with the past and could make life much more difficult for Beijing. — DPP supporters shine lights from their mobile devices as they celebrate election results during a rally in Taipei on 16 January 2016. Photo via Getty Images. A victory for Taiwan’s Democratic Progressive Party (DPP) in Taiwan’s presidential election on Saturday had been widely predicted. But the margin of victory, and the crushing defeat suffered by the ruling Kuomintang (KMT) in the concurrent legislative elections, could mean a conclusive shift in both the country’s domestic politics and its important relationship with Beijing.Why the DPP wonPresident elect Tsai Ing-wen’s victory was no close run thing nor was it a result of a split in the opposition vote as was claimed for her predecessor. The KMT ran a disastrously inept presidential campaign. The farcical way in which they first chose then unseated a totally unsuitable candidate simply underlined their lack of cohesion or purpose. This came on top of an unconvincing record in administration that showed the party to be increasingly tired, self-destructive and out of touch. Eric Chu, the eventual replacement choice, had neither the time nor the charisma to put things right. Moreover, on the key issue of mainland policy, the KMT had come to be seen as serving more a party interest than a national one. It now appears that a majority in Taiwan believe that the DPP will more effectively champion and promote their interests in relation to China than the KMT. The coup de theatre of the meeting of the presidents of China and Taiwan in November had no discernible electoral impact. More widely, the view of the national identity as a Taiwanese one rather than a Chinese or hybrid Chinese/Taiwanese one has taken firm hold. The DPP responded more effectively to this new political climate. What it means for relations with BeijingRelations between Taiwan and the mainland can only become more difficult now, but quite how that works out in practical terms remains to be seen. It seems unlikely that China will choose, initially at least, to row back from the agreements reached with the outgoing administration, but further progress will be problematic. A new basis needs to be worked out for political negotiations, and neither side will wish to compromise its position. It is likely that there will be increasingly hard line and even bellicose rhetoric emanating from some quarters in China, but it will remain more measured on the official side. The reality of China’s military and economic power remains there for all to see.The last DPP administration saw heightened tensions in US/China/Taiwan relations. The US will no doubt be arguing for calm and caution with both sides. All the official pronouncements so far from the DPP have been moderate. There is no desire for a confrontational policy from Taiwan, but equally Tsai made it clear that she was determined that ‘our democratic system, national identity, and international space must be respected. Any form of suppression will harm the stability of cross strait relations.’A new eraPresident elect Tsai will be able to form and run an administration free from the shackles of a hostile legislature that made life so difficult for the first DPP administration under Chen Shui-bian, and her party can now claim a convincing popular mandate. She won by a margin of twelve percentage points over her rivals. But the new administration faces real challenges, even beyond mainland policy. Taiwan’s economy has been relatively stagnant. There are increasing demands for new style politics. In her victory speech Tsai spoke of her wish to respond to the desire of the people for a government that is more willing to listen and one that is more transparent and accountable. She will want to escape from the shadow of the corruption that blighted the last DPP administration.The DPP now has full control of Taiwan’s political processes for the first time ever, but equally significantly the pretensions of the KMT to be the natural ruling party in Taiwan have been dealt a devastating blow. Taiwan’s democracy has moved into a new era.To comment on this article, please contact Chatham House Feedback Full Article
el Duterte’s Victory Is Cry for Help From Those Left Behind in Philippines By www.chathamhouse.org Published On :: Thu, 12 May 2016 15:01:57 +0000 Duterte’s Victory Is Cry for Help From Those Left Behind in Philippines Expert comment sysadmin 12 May 2016 But large support for mainstream parties and a mature democratic system should keep the country from slipping back towards authoritarianism. — Rodrigo Duterte prepares to vote inside a polling precinct on 9 May 2016 in Davao. Photo by Getty Images. The victory of political outsider Rodrigo Duterte in the 2016 Philippines’ elections is proof that a significant minority of the country’s population feels left behind by its recent economic success and estranged from its political elite. However the results of the elections as a whole suggest that most voters opted for a continuation of the current government’s policies.Duterte looks almost certain to be inaugurated as the next president of the Philippines on 30 June. The country’s presidential voting system – a single round, first-past-the-post election – delivered victory to a populist outsider with 39 per cent support. Two candidates advocating a continuation of the current government’s policies − the Liberal Party’s Mar Roxas and independent Grace Poe − polled a combined 45 per cent. The long-standing factionalism within Philippines elite politics split the ‘anti-Duterte’ vote.Changing the conversationThe contrast between Duterte and Roxas could hardly be greater. Mar Roxas is the grandson of the first president of an independent Philippines, a graduate of Wharton Business School and a former investment banker in the US. Rodrigo Duterte is a political outsider with an electoral base geographically almost as far from Manila as is possible to get in the Philippines: the city of Davao on the island of Mindanao.The story of Duterte’s victory is the story of how ‘Duterte managed to change the national conversation from poverty towards crime and corruption,’ says Marites Vitug, editor-at-large of one of the Philippines’ most popular online news sites, Rappler. In January, Duterte was running fourth in opinion polls but a strategy that positioned him as the only opponent to the Manila elite gave him victory. This is the first time a provincial official has made it to the top job.The headline figures tell us that the Philippines’ economy has done very well under President Benigno Aquino. Between 2010 and 2014, growth averaged 6.3 per cent per year. That fell to a still-impressive 5.8 per cent last year but is expected to pick up this year and next, according to the Asian Development Bank. Growth in agriculture, however, is significantly slower and rural areas feel left behind. While economic growth is benefiting the majority, inequality is worsening and resentment rising in poor villages. The contrast between the metropolitan sophistication of the Makati district in Manila and life in faraway provinces such as Duterte’s Mindanao is widening.Ironically the Philippines’ economic success is a part of the explanation for the defeat of the ‘mainstream’ presidential candidates. Crime and corruption may have become more important issues simply because more voters have become better off and therefore more likely to be concerned about crime and corruption than before. It’s also undeniable that Duterte has a record for getting things done. Human rights groups rightly criticize his (at best) tolerance of the extra-judicial killing of alleged criminals but his repeated re-election as mayor demonstrates that many citizens are prepared to accept that in exchange for improved personal security. A surprising number of Manila residents have actually moved to Davao because of its better quality of life.Traditional power basesHowever, the results as a whole suggest a narrow majority in favour of current policies. In the vice-presidential race, the Liberal Party candidate Leni Robredo is narrowly ahead of Ferdinand ‘Bongbong’ Marcos, the son of the eponymous former president. Like Duterte she is regarded as a successful mayor of a well-run city, Albay. Duterte’s running mate Alan Cayetano received just 14 per cent of the vote.In the senate election, Liberals won five of the 12 seats being contested, with a party- backed independent winning a sixth. The opposition, even with boxing champion and national idol Manny Pacquiao running for the United Nationalist Alliance, won four.Taken as a whole, the results show the enduring nature of traditional Philippines power bases. The country’s many islands and distinct linguistic and cultural regions are virtual fiefs in which families and big bosses can wield almost total power through control of local authorities, businesses, the courts and security forces.Threat to democracy?It’s easy to forget that the election of Ferdinand Marcos in 1965 was originally welcomed as a challenge to the traditional elites of Philippine politics. The same accolades are currently greeting Duterte. Could they presage a return to the Philippines’ bad old days?This seems less likely. Philippine democracy has matured considerably since Marcos declared martial law in 1972. There is a substantial, and vocal, middle class with experience of mobilizing against ‘bad’ presidents. There will also be pressures from international investors and the Philippines’ treaty ally, the United States, for better governance.The Philippines will chair the Association of Southeast Asian Nations next year. That will put Duterte in the international spotlight as host of several international meetings – including the East Asia Summit attended by, among others, the presidents of China, Russia and the US. Since his victory Duterte has promised to act with decorum in office and declared that his election campaign antics were just a ploy to attract attention. Some leaders in Southeast Asia will use his victory to buttress their arguments against allowing their people to freely vote. It’s up to Duterte to decide whether he wants to be an advertisement for – or an argument against – democracy.To comment on this article, please contact Chatham House Feedback Full Article
el What to Know About Hong Kong’s Chief Executive Election By www.chathamhouse.org Published On :: Mon, 27 Mar 2017 09:51:50 +0000 What to Know About Hong Kong’s Chief Executive Election Expert comment sysadmin 27 March 2017 Tim Summers looks at what we know about Carrie Lam, the territory’s new leader, and where Hong Kong politics goes from here. — A pro-democracy protester holds a yellow umbrella in front of Carrie Lam and her defeated opponents John Tsang and Woo Kwok-hing. Photo: Getty Images. Carrie Lam, formerly number two in the Hong Kong government, was selected as the Special Administrative Region’s new chief executive on 26 March. What does the process and her selection say about Hong Kong’s political future? Elections for Hong Kong’s top job are still within Beijing’s control. Due to the failure of political reform proposals in 2015, Lam was elected on the basis of 777 votes from the 1,194 members of the Chief Executive Election Committee. This ‘small-circle’ process was essentially the same as that used since 1997 (the only change being the expansion of the committee from its initial size of 800). The design of the process favours Beijing, and indeed Lam was the favoured candidate of the central government and many of its supporters in Hong Kong. But the influence of the central government has limits. The second-ranked candidate, former finance minister John Tsang (365 votes), had not been encouraged to stand by Beijing, and a fourth candidate, Regina Ip (who did not obtain enough nominations to join the vote), reportedly also rejected suggestions from Beijing that she should not put herself forward. The Committee itself contained 325 individuals affiliated to or sympathetic to opposition parties and around 100 establishment figures who did not support Lam – most of whom voted for Tsang. Although Lam gained more votes than her predecessor, CY Leung, in 2012 (he obtained 689 votes after a controversial campaign when scandals undermined his main opponent), Beijing appears to have expended substantial political capital in securing her victory. Despite the closed process, public opinion matters. The campaign saw all the candidates actively seek not only the votes of committee members, but also wider popular support. This highlights the need for broader legitimacy, and the fact that public participation and media debate are central factors in Hong Kong’s open political culture. A number of opinion polls showed Lam to have notably lower levels of popular support than Tsang. This will constrain her ability to govern effectively and she will not be cut much slack by the Hong Kong population. There were protests at the election venue calling for ‘genuine universal suffrage’. The new chief executive is an economic interventionist. The two main candidates – Lam and Tsang – have different policy approaches. Tsang’s was a more liberal ‘laissez faire’ one. Lam is likely to continue the somewhat more interventionist approach of CY Leung, who intervened more than previous governments to try to stabilize property prices and make more land available for housing, as well as reinstating policies targeting poverty and agreeing measures to limit the social impact of rising numbers of visitors and money from mainland China. Political reform seems very far off. The third candidate, former judge Woo Kwok-hing, had the clearest position on the thorny issue of political reform. Many of the government’s critics see less prospect for progress here under Lam, who fronted the government’s consultation processes during the 2013–15 debates over political reform. Lam gave some conflicting signals during the campaign, and it remains to be seen whether she tries to restart the process. But given rising populism, the growing fragmentation and polarization of Hong Kong politics, and entrenched positions from both Beijing and the opposition, it will be even more difficult to obtain consensus on a way forward than when the last failed attempt at reform took place – a key indicator will be whether all political parties are willing to discuss compromises. July’s anniversary will be contentious. Following formal appointment by the central government, Lam’s term will begin on 1 July. This will also mark the 20th anniversary of the handover of Hong Kong to Chinese sovereignty in 1997, which will coincide with a planned visit by President Xi Jinping. This will no doubt spark protests; for many, the 20th anniversary of the handover will therefore be less a time for celebration than an opportunity for many to highlight concerns about the future of the former British colony. Full Article
el ‘Hong Kong is now in the hands of its people – they cannot rely on others to stick up for them now.’ By www.chathamhouse.org Published On :: Thu, 29 Jun 2017 14:18:34 +0000 ‘Hong Kong is now in the hands of its people – they cannot rely on others to stick up for them now.’ Expert comment sysadmin 29 June 2017 Kerry Brown on ‘one country, two systems’, the UK’s diminishing influence and the territory’s future, 20 years after the handover. — Hong Kong and Chinese flags hang in preparation for President Xi Jinping’s visit. Photo: Getty Images. 1 July marks the 20th anniversary of the transfer of Hong Kong’s sovereignty from Britain to China. Kerry Brown speaks with Jason Naselli about what the future holds for the territory. How sustainable is the ‘one country, two systems’ framework? Will the arrangement last the full 50 years (until 2047) as originally envisioned? It is questionable whether the arrangement that exists today was the one envisioned in 1997 when the handover happened. It was always a very abstract, flexible system, granting Hong Kong a high degree of autonomy, meaning it could maintain its capitalist system. Of course, in the lead up to 1997 all these things were broadly seen as being in Beijing’s interests to preserve. But these days, the one thing that few said in 1997 has come to pass – the People’s Republic has maintained one-party rule as a political system, but become one of the world’s great economies. It has been so far a huge success. Hong Kong therefore has diminished in importance over the years to the point that maintaining at least some semblance of one country, two systems is almost like an act of charity. It has been nibbled at, compromised and seems to grow weaker by the day. Most in Hong Kong would say there is a system: one country, one system. That’s the deal. The central government’s deepening involvement in the territory’s politics is a subject of growing controversy in Hong Kong. Does the Chinese government need to alter its approach? Not particularly. It doesn’t want to see Hong Kong fail as an economy. That doesn’t suit its interests at all. But nor does it want a truculent, disobedient polity that is meant to be part of its sovereign territory. So it has increasingly set political parameters. Hong Kong can have its unique system – as long as it is obedient. And on the whole, that is the deal that all of the city’s chief executives until now have internally understood perfectly. As part of the 1997 handover, the UK has ‘a continuing moral and political obligation’ to Hong Kong. How will this relationship play out as Brexit shifts Britain’s place in the world? The Foreign Office offers a six-monthly report to Parliament, updating on how the handover deal is going. As the years go on, however, it becomes increasingly illusive how the UK has any real locus to say much about the situation on Hong Kong. It did say, rightly, that the detainment of one of the booksellers taken in in 2015 was a violation of the treaty because he was British. This was the strongest wording that has ever appeared from an official British source. But with dependence on creating a new kind of relationship with China now foremost in people’s minds because of Brexit and other economic pressures, it is not surprising that the priority increasingly lies elsewhere. With direct management of Hong Kong gone, the UK was always going to be more and more irrelevant. That has happened. And in any case, relations with China have had to become more complex and multifaceted. Hong Kong was always the tail wagging the dog for the UK relations with China. Now there has been a rebalancing, the calculation always has to be how much unilaterally supporting Hong Kong will damage relations with Beijing. This has become an increasingly asymmetrical question: in a playoff, preserving links with Beijing will always prevail. That’s just the reality of the new world we are seeing come into being. Hong Kong has played an important financial role for China over the past 20 years, but where will it fit as markets and financial institutions on the mainland mature? It maintains is role as a major RMB hub, and as a finance centre. But it is surrounded by competition. Singapore, and Sydney, and other places in the region have RMB deals. Shanghai and Tianjin aspire to be portals for entry to the domestic Chinese market. Hong Kong every day has to think of new ways to maintain its relevance and beat back competition. So far, it has done well. But this is an issue it can never be complacent about. What has been the most significant change in Hong Kong society since 1997? The rising cultural and linguistic influence of the mainland on Hong Kong. Hong Kong has maintained its difference – but it has had to change. It is clear that Hong Kong is now in the hands of Hong Kongese – they cannot rely on others to stick up for them now. The culture, identity and future of the territory are in their hands. In that sense, they have autonomy. Full Article
el Artificial Intelligence Apps Risk Entrenching India’s Socio-economic Inequities By www.chathamhouse.org Published On :: Wed, 14 Mar 2018 15:35:52 +0000 Artificial Intelligence Apps Risk Entrenching India’s Socio-economic Inequities Expert comment sysadmin 14 March 2018 Artificial intelligence applications will not be a panacea for addressing India’s grand challenges. Data bias and unequal access to technology gains will entrench existing socio-economic fissures. — Participants at an AI event in Bangalore. Photo: Getty Images. Artificial intelligence (AI) is high on the Indian government’s agenda. Some days ago, Prime Minister Narendra Modi inaugurated the Wadhwani Institute for Artificial Intelligence, reportedly India’s first research institute focused on AI solutions for social good. In the same week, Niti Aayog CEO Amitabh Kant argued that AI could potentially add $957 billion to the economy and outlined ways in which AI could be a ‘game changer’. During his budget speech, Finance Minister Arun Jaitley announced that Niti Aayog would spearhead a national programme on AI; with the near doubling of the Digital India budget, the IT ministry also announced the setting up of four committees for AI-related research. An industrial policy for AI is also in the pipeline, expected to provide incentives to businesses for creating a globally competitive Indian AI industry. Narratives on the emerging digital economy often suffer from technological determinism — assuming that the march of technological transformation has an inner logic, independent of social choice and capable of automatically delivering positive social change. However, technological trajectories can and must be steered by social choice and aligned with societal objectives. Modi’s address hit all the right notes, as he argued that the ‘road ahead for AI depends on and will be driven by human intentions’. Emphasising the need to direct AI technologies towards solutions for the poor, he called upon students and teachers to identify ‘the grand challenges facing India’ – to ‘Make AI in India and for India’. To do so, will undoubtedly require substantial investments in R&D, digital infrastructure and education and re-skilling. But, two other critical issues must be simultaneously addressed: data bias and access to technology gains. While computers have been mimicking human intelligence for some decades now, a massive increase in computational power and the quantity of available data are enabling a process of ‘machine learning.’ Instead of coding software with specific instructions to accomplish a set task, machine learning involves training an algorithm on large quantities of data to enable it to self-learn; refining and improving its results through multiple iterations of the same task. The quality of data sets used to train machines is thus a critical concern in building AI applications. Much recent research shows that applications based on machine learning reflect existing social biases and prejudice. Such bias can occur if the data set the algorithm is trained on is unrepresentative of the reality it seeks to represent. If for example, a system is trained on photos of people that are predominantly white, it will have a harder time recognizing non-white people. This is what led a recent Google application to tag black people as gorillas. Alternatively, bias can also occur if the data set itself reflects existing discriminatory or exclusionary practices. A recent study by ProPublica found for example that software that was being used to assess the risk of recidivism in criminals in the United States was twice as likely to mistakenly flag black defendants as being at higher risk of committing future crimes. The impact of such data bias can be seriously damaging in India, particularly at a time of growing social fragmentation. It can contribute to the entrenchment of social bias and discriminatory practices, while rendering both invisible and pervasive the processes through which discrimination occurs. Women are 34 per cent less likely to own a mobile phone than men – manifested in only 14 per cent of women in rural India owning a mobile phone, while only 30 per cent of India’s internet users are women. Women’s participation in the labour force, currently at around 27 per cent, is also declining, and is one of the lowest in South Asia. Data sets used for machine learning are thus likely to have a marked gender bias. The same observations are likely to hold true for other marginalized groups as well. Accorded to a 2014 report, Muslims, Dalits and tribals make up 53 per cent of all prisoners in India; National Crime Records Bureau data from 2016 shows in some states, the percentage of Muslims in the incarcerated population was almost three times the percentage of Muslims in the overall population. If AI applications for law and order are built on this data, it is not unlikely that it will be prejudiced against these groups. (It is worth pointing out that the recently set-up national AI task force is comprised of mostly Hindu men – only two women are on the task force, and no Muslims or Christians. A recent article in the New York Times talked about AI’s ‘white guy problem’; will India suffer from a ‘Hindu male bias’?) Yet, improving the quality, or diversity, of data sets may not be able to solve the problem. The processes of machine learning and reasoning involve a quagmire of mathematical functions, variables and permutations, the logic of which are not readily traceable or predictable. The dazzle of AI-enabled efficiency gains must not blind us to the fact that while AI systems are being integrated into key socio-economic systems, their accuracy and logic of reasoning have not been fully understood or studied. The other big challenge stems from the distribution of AI-led technology gains. Even if estimates of AI contribution to GDP are correct, the adoption of these technologies is likely to be in niches within the organized sector. These industries are likely to be capital- rather than labour-intensive, and thus unlikely to contribute to large-scale job creation. At the same time, AI applications can most readily replace low- to medium-skilled jobs within the organized sector. This is already being witnessed in the outsourcing sector – where basic call and chat tasks are now automated. Re-skilling will be important, but it is unlikely that those who lose their jobs will also be those who are being re-skilled – the long arch of technological change and societal adaptation is longer than that of people’s lives. The contractualization of work, already on the rise, is likely to further increase as large industries prefer to have a flexible workforce to adapt to technological change. A shift from formal employment to contractual work can imply a loss of access to formal social protection mechanisms, increasing the precariousness of work for workers. The adoption of AI technologies is also unlikely in the short- to medium-term in the unorganized sector, which engages more than 80 per cent of India’s labor force. The cost of developing and deploying AI applications, particularly in relation to the cost of labour, will inhibit adoption. Moreover, most enterprises within the unorganized sector still have limited access to basic, older technologies – two-thirds of the workforce are employed in enterprises without electricity. Eco-system upgrades will be important but incremental. Given the high costs of developing AI-based applications, most start-ups are unlikely to be working towards creating bottom-of-the-pyramid solutions. Access to AI-led technology gains is thus likely to be heavily differentiated – a few high-growth industries can be expected, but these will not necessarily result in the welfare of labour. Studies show that labour share of national income, especially routine labour, has been declining steadily across developing countries. We should be clear that new technological applications themselves are not going to transform or disrupt this trend – rather, without adequate policy steering, these trends will be exacerbated. Policy debates about AI applications in India need to take these two issues seriously. AI applications will not be a panacea for addressing ‘India’s grand challenges’. Data bias and unequal access to technology gains will entrench existing socio-economic fissures, even making them technologically binding. In addition to developing AI applications and creating a skilled workforce, the government needs to prioritize research that examines the complex social, ethical and governance challenges associated with the spread of AI-driven technologies. Blind technological optimism might entrench rather than alleviate the grand Indian challenge of inequity and growth. This article was originally published in the Indian Express. Full Article
el Numerical analysis of a time-stepping method for the Westervelt equation with time-fractional damping By www.ams.org Published On :: Mon, 21 Oct 2024 15:01 EDT Katherine Baker, Lehel Banjai and Mariya Ptashnyk Math. Comp. 93 (), 2711-2743. Abstract, references and article information Full Article
el Generalized Korn’s inequalities for piecewise ????¹ and ????² vector fields By www.ams.org Published On :: Mon, 21 Oct 2024 15:01 EDT David M. Williams and Qingguo Hong Math. Comp. 93 (), 2587-2609. Abstract, references and article information Full Article
el High-order splitting finite element methods for the subdiffusion equation with limited smoothing property By www.ams.org Published On :: Mon, 21 Oct 2024 15:01 EDT Buyang Li, Zongze Yang and Zhi Zhou Math. Comp. 93 (), 2557-2586. Abstract, references and article information Full Article
el Bridges and Wheels, Tricycles and Squares By www.ams.org Published On :: Fri, 13 Oct 2023 10:33:14 -0400 Dr. Stan Wagon of Macalester College discusses the mathematics behind rolling a square smoothly. In 1997, inspired by a square wheel exhibit at The Exploratorium museum in San Francsico, Dr. Stan Wagon enlisted his neighbor Loren Kellen in building a square-wheeled tricycle and accompanying catenary track. For years, you could ride the tricycle at Macalester College in St. Paul, Minnesota. The National Museum of Mathematics in New York now also has square-wheeled tricycles that can be ridden around a circular track. And more recently, the impressive Cody Dock Rolling Bridge was built using rolling square mathematics by Thomas Randall-Page in London. Full Article
el Natural Resources & Economic Development - 11/14/2024 By capitol.texas.gov Published On :: Time: 10:00 AM, Location: E1.012 (Hearing Room) Full Article
el Recent Developments in Fractal Geometry and Dynamical Systems By www.ams.org Published On :: Wed, 10 Apr 2024 11:36 EDT Sangita Jha, Mrinal Kanti Roychowdhury and Saurabh Verma, editors. American Mathematical Society, 2024, CONM, volume 797, approx. 268 pp. ISBN: 978-1-4704-7216-0 (print), 978-1-4704-7610-6 (online). This volume contains the proceedings of the virtual AMS Special Session on Fractal Geometry and Dynamical Systems, held from May 14–15,... Full Article
el Opening ASBMB publications freely to all [Editorial] By www.jbc.org Published On :: 2020-05-29T00:06:00-07:00 We are extremely excited to announce on behalf of the American Society for Biochemistry and Molecular Biology (ASBMB) that the Journal of Biological Chemistry (JBC), Molecular & Cellular Proteomics (MCP), and the Journal of Lipid Research (JLR) will be published as fully open-access journals beginning in January 2021. This is a landmark decision that will have huge impact for readers and authors. As many of you know, many researchers have called for journals to become open access to facilitate scientific progress, and many funding agencies across the globe are either already requiring or considering a requirement that all scientific publications based on research they support be published in open-access journals. The ASBMB journals have long supported open access, making the accepted author versions of manuscripts immediately and permanently available, allowing authors to opt in to the immediate open publication of the final version of their paper, and endorsing the goals of the larger open-access movement (1). However, we are no longer satisfied with these measures. To live up to our goals as a scientific society, we want to freely distribute the scientific advances published in JBC, MCP, and JLR as widely and quickly as possible to support the scientific community. How better can we facilitate the dissemination of new information than to make our scientific content freely open to all?For ASBMB journals and others who have contemplated or made the transition to publishing all content open access, achieving this milestone generally requires new financial mechanisms. In the case of the... Full Article
el Corrigendum to “The Class Number one Problem for the Normal CM-fields of degree 32” By www.ams.org Published On :: Thu, 31 Oct 2024 16:22 EDT Soun-Hi Kwon Trans. Amer. Math. Soc. 377 (), 6021-6022. Abstract, references and article information Full Article
el On Jacobians of geometrically reduced curves and their Néron models By www.ams.org Published On :: Thu, 31 Oct 2024 16:22 EDT Otto Overkamp Trans. Amer. Math. Soc. 377 (), 5863-5903. Abstract, references and article information Full Article
el Bessel periods and anticyclotomic ????-adic spinor ????-functions By www.ams.org Published On :: Thu, 31 Oct 2024 16:22 EDT Ming-Lun Hsieh and Shunsuke Yamana Trans. Amer. Math. Soc. 377 (), 5617-5672. Abstract, references and article information Full Article
el ????????-duality for self-similar groupoid actions on graphs By www.ams.org Published On :: Thu, 31 Oct 2024 16:22 EDT Nathan Brownlowe, Alcides Buss, Daniel Gonçalves, Jeremy B. Hume, Aidan Sims and Michael F. Whittaker Trans. Amer. Math. Soc. 377 (), 5513-5560. Abstract, references and article information Full Article
el On a Torelli Principle for automorphisms of Klein hypersurfaces By www.ams.org Published On :: Thu, 31 Oct 2024 16:22 EDT Víctor González-Aguilera, Alvaro Liendo, Pedro Montero and Roberto Villaflor Loyola Trans. Amer. Math. Soc. 377 (), 5483-5511. Abstract, references and article information Full Article
el Twisted Kuperberg invariants of knots and Reidemeister torsion via twisted Drinfeld doubles By www.ams.org Published On :: Thu, 31 Oct 2024 16:22 EDT Daniel López Neumann Trans. Amer. Math. Soc. 377 (), 5361-5387. Abstract, references and article information Full Article
el stricly ballroom - elena & owen By www.flickr.com Published On :: Tue, 12 Nov 2024 04:22:58 -0800 photos4dreams posted a photo: © 2024 photos4dreams - all rights reserved Full Article
el LEGO Classic Space: the robot final rebellion on the capital planet ousts the federation rule and replace with a techno republic and dictatorship (the final episode (for a while)) (AFOL toy hobby photography with droids, police and minifigures city MOC By www.flickr.com Published On :: Tue, 12 Nov 2024 05:00:15 -0800 dannyhennesy posted a photo: On the Capital planet the rebellious droids had followed maily the Bat-Bot, but as time progressed his circuits had gone all mushy at 780 years or so without maintenance… Several splinter groups all with their local bot leaders emerged such as the Che-bot, the traffic-light-robot and the Butt-bot, but none of these collected enough sentient circuits to call themselves a popular (or Animata) mass movement! That was until a cyborg came along, one known as Jones, a long time prisoner and terrorist, his easy solutions to every problem rang well in the masses' auditory circuits!!! His slogans and simple rhetoric were simple enough for the simple traffic-light to comprehend and cheer! His language was full of hate towards the organics and especially the humans who were the most common races among the ruling class of the federation!!! Despite being a “Fleshie” himself his message collected the angry enslaved bot community by only weeks all rebellious robots except for a few fringe loonies had forgotten the old leaders… One morning at Jones gave the signal… All over the capital planet hordes and swarms of any form of mechanical sentient beings attacked first the police stations, then the Company boards running the planet and the federation as well as their starfleet… Many died, especially the low level police and army! Many mechanicals died too, but their ranks were soon filled by Mutant fleshie allies of the lower levels who hated the Federation feudal society and upper classes as much as their technological allies… The Federation state apparatus and ruling class, most of their fleet army fled when they knew the game was up, they activated the emergency escape plan and whole city blocks with important factories, administrational units, valuable assets and so on separated from the capital by hidden rocket engines and homed in their course to Mars… On Mars the federation regrouped and formed their new society… On the Capital planet, the robots proclaimed the first Techno-republic of the advanced inorganic civilization, the low level fleshies left behind, became slaves and their mutant allies got to rule their own minute chiefdoms as protectorates under the Techno-republic… Jones was now the undisputed ruler of the capital planet, but the victory was a pyrros one since, all important buildings, all of value was now one Mars! But as Jones put it: Our proud race the Techno-species didn’t need the Fleshies administration, their infrastructure, their spaceships… We shall start from scratch, with a new administration, a new order, every droid shall work at 4x speed than they did during human oppression since now we are free and the fleshies shall work twice as hard than the Techno-Race, until we have breed enough new fleshies so they can do all work! Our future is bright and shiny like glistering shiny metal! The snapshot seen here is from the first police station attacked in sector 45-34v-ss-g the first one to fall according to official techno-history! ———————————————/ Designers note: I am sad to say that this is the last episode in this years-spanning space series… At least for a while, I will still post LEGO hobby stuff here but without a storyline, perhaps small designs and builds… and occasionally a story when I feel like it!!! I would like to thank all who had been in this journey of our heros, but it has taken far to much time and effort and since the state of the world is as it is, I am spiraling down in another depression, I must stop it before I reach the abyss, so I have remove some stress out of my equation… I ended it in a cliffhanger so I can easily restart it when my mental health improves… I hope that won’t be forever??? I would love if someone used my characters or ideas, please send me a link if you do, I would love to read it or look at it!!! But there will be more Lego, just in different format without long stories, I need to focus more on my art and to be honest that is the only time the mental pain eases, when I create!!! Peace and Noise! MushroomBrain a FOL Full Article
el Corgi Toys - Corgi Whizzwheels - Porsche 917 - Miniature Diecast Metal 1/43 Scale Model Motor Vehicle By www.flickr.com Published On :: Tue, 12 Nov 2024 06:13:47 -0800 firehouse.ie posted a photo: Full Article
el Corgi Toys - Corgi Whizzwheels - Porsche 917 - Miniature Diecast Metal 1/43 Scale Model Motor Vehicle By www.flickr.com Published On :: Tue, 12 Nov 2024 06:13:47 -0800 firehouse.ie posted a photo: Full Article
el Corgi Toys - Corgi Whizzwheels - Porsche 917 - Miniature Diecast Metal 1/43 Scale Model Motor Vehicle By www.flickr.com Published On :: Tue, 12 Nov 2024 06:13:47 -0800 firehouse.ie posted a photo: Full Article
el Tekno - The Irish Collection - Ref. 258 - Scania Articulated Truck - Glynns, Galway - Miniature Diecast Metal Scale Model Heavy Goods Vehicle By www.flickr.com Published On :: Tue, 12 Nov 2024 06:44:08 -0800 firehouse.ie posted a photo: Full Article
el Tekno - The Irish Collection - Ref. 258 - Scania Articulated Truck - Glynns, Galway - Miniature Diecast Metal Scale Model Heavy Goods Vehicle By www.flickr.com Published On :: Tue, 12 Nov 2024 06:44:07 -0800 firehouse.ie posted a photo: Full Article
el The history of model railroading the the Walthers 1970 O Scale Catalog By www.flickr.com Published On :: Tue, 12 Nov 2024 07:38:05 -0800 Tangled Bank posted a photo: Full Article
el The history of model railroading the the Walthers 1970 O Scale Catalog By www.flickr.com Published On :: Tue, 12 Nov 2024 07:38:03 -0800 Tangled Bank posted a photo: Full Article
el The history of model railroading the the Walthers 1970 O Scale Catalog By www.flickr.com Published On :: Tue, 12 Nov 2024 07:38:01 -0800 Tangled Bank posted a photo: Full Article
el JOEPIE ON HIS WAY TO SAFE PETER FROM THE BAD BIRD || JOEPIE OP WEG OM PETER TE REDDEN VAN DE BOZE VOGEL By www.flickr.com Published On :: Tue, 12 Nov 2024 12:24:19 -0800 Anne-Miek Bibbe posted a photo: JOEPIE: I'm almost there! I wish Uncle Jeroen was here, I'm a little, really just a little bit afraid of the dark. ------------------------------------------------------------------------------------- JOEPIE: Ik ben bijna bij Peter! Ik wou dat oom Jeroen hier was, ik ben een beetje, echt maar een héél klein beetje bang in het donker. Full Article
el On Lamperti transformation and AR(1) type characterisations of discrete random fields By www.ams.org Published On :: Tue, 05 Nov 2024 14:10 EST Marko Voutilainen, Lauri Viitasaari and Pauliina Ilmonen Theor. Probability and Math. Statist. 111 (), 181-197. Abstract, references and article information Full Article
el Asymptotic normality of estimators for all parameters in the Vasicek model by discrete observations By www.ams.org Published On :: Tue, 05 Nov 2024 14:10 EST Olha Prykhodko and Kostiantyn Ralchenko Theor. Probability and Math. Statist. 111 (), 123-135. Abstract, references and article information Full Article
el A convolution inequality, yielding a sharper Berry–Esseen theorem for summands Zolotarev-close to normal By www.ams.org Published On :: Tue, 05 Nov 2024 14:10 EST Lutz Mattner Theor. Probability and Math. Statist. 111 (), 45-122. Abstract, references and article information Full Article
el Borel conjecture for the Marczewski ideal By www.ams.org Published On :: Tue, 05 Nov 2024 15:05 EST Jörg Brendle and Wolfgang Wohofsky Proc. Amer. Math. Soc. 152 (), 5395-5410. Abstract, references and article information Full Article
el De Branges-Rovnyak spaces and complete Nevanlinna-Pick kernels By www.ams.org Published On :: Tue, 05 Nov 2024 15:05 EST Cheng Chu Proc. Amer. Math. Soc. 152 (), 5289-5297. Abstract, references and article information Full Article
el Relaxation of the kinematic dynamo equations By www.ams.org Published On :: Tue, 05 Nov 2024 15:05 EST Lauri Hitruhin and Sauli Lindberg Proc. Amer. Math. Soc. 152 (), 5265-5278. Abstract, references and article information Full Article