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Tiberius Brastaviceanu

Laser and detector optical fiber - 1 views

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    Found by Jonathan, we'll order two versions to try, this replaces the PDLD system, a better system uses a circulator, which is much more expensive.
Tiberius Brastaviceanu

1310nm 1550nm FP Coaxial Pigtail LD - 1 views

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    This is a pigtail laser, they have at 1310 and 1550nm. Nice for our modular designs of the Mosquito.
Tiberius Brastaviceanu

Laser and detector optical fiber - quote - 1 views

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    Quote obtained by Jonathan for the laser and detector system, the optical fiber-based, to replace the PDLD version. We'll try two versions.
Tiberius Brastaviceanu

Innovation Canada: A Call to Action - Review of Federal Support to Research and Develop... - 1 views

  • Canada has a solid foundation on which to build success as a leader in the knowledge economy of tomorrow
  • innovation in Canada lags behind other highly developed countries
  • innovation is the ultimate source of the long-term competitiveness of businesses and the quality of life of Canadians
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  • We heard that the government should be more focussed on helping innovative firms to grow and, particularly, on serving the needs of small and medium-sized enterprises (SMEs)
  • greater cooperation with provincial programs
  • innovation support is too narrowly focussed on R&D – more support is needed for other activities along the continuum from ideas to commercially useful innovation
  • more productive and internationally competitive economy
  • whole-of-government program delivery vehicle – the Industrial Research and Innovation Council (IRIC)
  • SR&ED program should be simplified
  • includes non-labour costs, such as materials and capital equipment, the calculation of which can be highly complex
  • the base for the tax credit should be labour-related costs, and the tax credit rate should be adjusted upward
  • fund direct support measures for SMEs
  • promoting the growth of firms
  • facilitating access by such firms to an increased supply of risk capital at both the start-up and later stages of their growth.
  • building public–private research collaborations
  • National Research Council (NRC) should become independent collaborative research organizations
  • become affiliates of universities
  • create opportunity and demand for leading-edge goods
  • encouragement of innovation in the Canadian economy should become a stated objective of procurement policies and programs.
  • the government needs to establish business innovation as a whole-of-government priority
  • put innovation at the centre of the government's economic strategy
  • Innovation Advisory Committee (IAC) – a body with a whole-of-government focus that would oversee the realization of our proposed action plan, as well as serve as a permanent mechanism to promote the refinement and improvement of the government's business innovation programs going forward.
  • focus resources where market forces are unlikely to operate effectively or efficiently and, in that context, address the full range of business innovation activities, including research, development, commercialization and collaboration with other key actors in the innovation ecosystem
  • the closer the activity being supported is to market, and therefore the more likely it is that the recipient firm will capture most of the benefit for itself.
  • specific sectors
  • of strategic importance
  • concentrated in particular regions
  • succeed in the arena of global competition
    • Tiberius Brastaviceanu
       
      They don't go beyond the firm
    • Tiberius Brastaviceanu
       
      they are still stuck in the competitive paradigm
    • Tiberius Brastaviceanu
       
      Still stack with the old paradigm of the "knowledge economy"  http://en.wikipedia.org/wiki/Knowledge_economy  My opinion is that we're moving into a know-how economy. 
Tiberius Brastaviceanu

Circuit Stickers | Crowd Supply - 0 views

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    Printable, flexible electronics
Steve Bosserman

Food Safety in China, and the Risk to the U.S. - 0 views

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    Three years after the melamine-in-milk scandal that made 300,000 children sick, and two years after China passed its first-ever food safety law in response, the country is still struggling to keep its food supply healthy. The Chinese government recently cracked down, closing almost 5,000 food-producing businesses and arresting 2,000 people -- but China experts say a needlessly complex bureaucracy and ferocious determination to turn a profit mean the contamination will keep coming. (On forums where expats chat, Westerners living in China wonder whether there is anything safe to eat.) (Update: Commenters at the China Law Blog, many of them apparently resident in China, reflect the same anxiety.)
sebastianklemm

Tyddyn Teg - Tyddyn Teg - 0 views

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    Recommended by Billy Smith (via Mastodon)
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    The Tyddyn Teg cooperative has eight members and some lovely volunteer helpers. We share a commitment to the importance of quality local food and the challenges of sustainability in the twenty first century. We see ourselves as part of the global family of small farmers and aim to become a practice based centre for research and education for sustainable local food production. Our primary objective has been to maintain vegetable production and meet the needs and expectations of our veg box customers. In this we have had a great deal of help and advice from John and Pippa (who were the previous owners of the farm). We are also supplying vegetables to Moelyci Shop and Dimensions Shop in Bangor. Our aims over the coming years are: Expand and improve our vegetable growing Develop the Farm to support WWOOFing Create new spaces for events Open opportunities to have a small scale restaurant/cafe on the farm Establish a luxury camping business where people can come and stay Provide a living wage to every member of the cooperative
Tiberius Brastaviceanu

The New Normal in Funding University Science | Issues in Science and Technology - 1 views

  • Government funding for academic research will remain limited, and competition for grants will remain high. Broad adjustments will be needed
  • he sequester simply makes acute a chronic condition that has been getting worse for years.
  • the federal budget sequester
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  • systemic problems that arise from the R&D funding system and incentive structure that the federal government put in place after World War II
  • Researchers across the country encounter increasingly fierce competition for money.
  • unding rates in many National Institutes of Health (NIH) and National Science Foundation (NSF) programs are now at historical lows, declining from more than 30% before 2001 to 20% or even less in 2011
  • even the most prominent scientists will find it difficult to maintain funding for their laboratories, and young scientists seeking their first grant may become so overwhelmed that individuals of great promise will be driven from the field
  • anxiety and frustration
  • The growth of the scientific enterprise on university campuses during the past 60 years is not sustainable and has now reached a tipping point at which old models no longer work
  • Origins of the crisis
  • ederal funding agencies must work with universities to ensure that new models of funding do not stymie the progress of science in the United States
  • The demand for research money greatly exceeds the supply
  • the demand for research funding has gone up
  • The deeper sources of the problem lie in the incentive structure of the modern research university, the aspirations of scientists trained by those universities, and the aspirations of less research-intensive universities and colleges across the nation
  • competitive grants system
  • if a university wants to attract a significant amount of sponsored research money, it needs doctoral programs in the relevant fields and faculty members who are dedicated to both winning grants and training students
  • The production of science and engineering doctorates has grown apace
  • Even though not all doctorate recipients become university faculty, the size of the science and engineering faculty at U.S. universities has grown substantially
  • proposal pressure goes up
  • These strategies make sense for any individual university, but will fail collectively unless federal funding for R&D grows robustly enough to keep up with demand.
  • At the very time that universities were enjoying rapidly growing budgets, and creating modes of operation that assumed such largess was the new normal, Price warned that it would all soon come to a halt
  • the human and financial resources invested in science had been increasing much faster than the populations and economies of those regions
  • growth in the scientific enterprise would have to slow down at some point, growing no more than the population or the economy.
  • Dead-end solutions
  • studies sounded an alarm about the potential decline in U.S. global leadership in science and technology and the grave implications of that decline for economic growth and national security
  • Although we are not opposed to increasing federal funding for research, we are not optimistic that it will happen at anywhere near the rate the Academies seek, nor do we think it will have a large impact on funding rates
  • universities should not expect any radical increases in domestic R&D budgets, and most likely not in defense R&D budgets either, unless the discretionary budgets themselves grow rapidly. Those budgets are under pressure from political groups that want to shrink government spending and from the growth of spending in mandatory programs
  • The basic point is that the growth of the economy will drive increases in federal R&D spending, and any attempt to provide rapid or sustained increases beyond that growth will require taking money from other programs.
  • The demand for research money cannot grow faster than the economy forever and the growth curve for research money flattened out long ago.
  • Path out of crisis
  • The goal cannot be to convince the government to invest a higher proportion of its discretionary spending in research
  • Getting more is not in the cards, and some observers think the scientific community will be lucky to keep what it has
  • The potential to take advantage of the infrastructure and talent on university campuses may be a win-win situation for businesses and institutions of higher education.
  • Why should universities and colleges continue to support scientific research, knowing that the financial benefits are diminishing?
  • esearch culture
  • attract good students and faculty as well as raise their prestige
  • mission to expand the boundaries of human knowledge
  • faculty members are committed to their scholarship and will press on with their research programs even when external dollars are scarce
  • training
  • take place in
  • research laboratories
  • it is critical to have active research laboratories, not only in elite public and private research institutions, but in non-flagship public universities, a diverse set of private universities, and four-year colleges
  • How then do increasingly beleaguered institutions of higher education support the research efforts of the faculty, given the reality that federal grants are going to be few and far between for the majority of faculty members? What are the practical steps institutions can take?
  • change the current model of providing large startup packages when a faculty member is hired and then leaving it up to the faculty member to obtain funding for the remainder of his or her career
  • universities invest less in new faculty members and spread their internal research dollars across faculty members at all stages of their careers, from early to late.
    • Tiberius Brastaviceanu
       
      Sharing of resources, see SENSORICA's NRP
  • national conversation about changes in startup packages and by careful consultations with prospective faculty hires about long-term support of their research efforts
  • Many prospective hires may find smaller startup packages palatable, if they can be convinced that the smaller packages are coupled with an institutional commitment to ongoing research support and more reasonable expectations about winning grants.
  • Smaller startup packages mean that in many situations, new faculty members will not be able to establish a functioning stand-alone laboratory. Thus, space and equipment will need to be shared to a greater extent than has been true in the past.
  • construction of open laboratory spaces and the strategic development of well-equipped research centers capable of efficiently servicing the needs of an array of researchers
  • phaseout of the individual laboratory
  • enhanced opportunities for communication and networking among faculty members and their students
  • Collaborative proposals and the assembly of research teams that focus on more complex problems can arise relatively naturally as interactions among researchers are facilitated by proximity and the absence of walls between laboratories.
  • An increased emphasis on team research
  • investments in the research enterprise
  • can be directed at projects that have good buy-in from the faculty
  • learn how to work both as part of a team and independently
  • Involvement in multiple projects should be encouraged
  • The more likely trajectory of a junior faculty member will evolve from contributing team member to increasing leadership responsibilities to team leader
  • nternal evaluations of contributions and potential will become more important in tenure and promotion decisions.
    • Tiberius Brastaviceanu
       
      Need value accounting system
  • relationships with foundations, donors, state agencies, and private business will become increasingly important in the funding game
  • The opportunities to form partnerships with business are especially intriguing
    • Tiberius Brastaviceanu
       
      The problem is to change the model and go open source, because IP stifles other processes that might benefit Universities!!!
  • Further complicating university collaborations with business is that past examples of such partnerships have not always been easy or free of controversy.
  • some faculty members worried about firms dictating the research priorities of the university, pulling graduate students into proprietary research (which could limit what they could publish), and generally tugging the relevant faculty in multiple directions.
  • developed rules and guidelines to control them
  • University faculty and businesspeople often do not understand each other’s cultures, needs, and constraints, and such gaps can lead to more mundane problems in university/industry relations, not least of which are organizational demands and institutional cultures
    • Tiberius Brastaviceanu
       
      Needs for mechanisms to govern, coordinate, structure an ecosystem -See SENSORICA's Open Alliance model
  • n addition to funding for research, universities can receive indirect benefits from such relationships. High-profile partnerships with businesses will underline the important role that universities can play in the economic development of a region.
  • Universities have to see firms as more than just deep pockets, and firms need to see universities as more than sources of cheap skilled labor.
  • foundations or other philanthropy
  • We do not believe that research proposed and supervised by individual principal investigators will disappear anytime soon. It is a research model that has proven to be remarkably successful and enduring
  • However, we believe that the most vibrant scientific communities on university and college campuses, and the ones most likely to thrive in the new reality of funding for the sciences, will be those that encourage the formation of research teams and are nimble with regard to funding sources, even as they leave room for traditional avenues of funding and research.
Tiberius Brastaviceanu

Evolving Towards a Partner State in an Ethical Economy - 0 views

  • In the  emerging institutional model of peer production
  • we can distinguish an interplay between three partners
  • a community of contributors that create a commons of knowledge, software or design;
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  • There is a clear institutional division of labour between these three players
  • a set of "for-benefit institutions' which manage the 'infrastructure of cooperation'
  • an enterpreneurial coalition that creates market value on top of that commons;
  • Can we also learn something about the politics of this new mode of value creation
  • Is there perhaps a new model of power and democracy co-evolving out of these new social practices, that may be an answer to the contemporary crisis of democracy
  • we are witnessing a new model for the state. A 'P2P' state, if you will.
  • The post-democratic logic of community
  • these communities are not democracies
  • because democracy, and the market, and hierarchy, are modes of allocation of scarce resources
  • Such communities are truly poly-archies and the type of power that is held in them is meritocratic, distributed, and ad hoc.
  • Everyone can contribute without permission, but such a priori permissionlessness is  matched with mechanisms for 'a posteriori'  communal validation, where those with recognized expertise and that are accepted by the community, the so-called 'maintainers' and the 'editors',  decide
  • These decisions require expertise, not communal consensus
  • tension between inclusiveness of participation and selection for excellence
  • allowing for maximum human freedom compatible with the object of cooperation. Indeed, peer production is always a 'object-oriented' cooperation, and it is the particular object that will drive the particular form chosen for its 'peer governance' mechanisms
  • The main allocation mechanism in such project, which replaces the market, the hierarchy and democracy,  is a 'distribution of tasks'
  • no longer a division of labor between 'jobs', and the mutual coordination works through what scientist call 'stigmergic signalling'
  • work environment is designed to be totally open and transparent
  • every participating individual can see what is needed, or not and decide accordingly whether to undertake his/her particular contribution
  • this new model
  • has achieved capacities both for global coordination, and for the small group dynamics that are characteristic of human tribal forms and that it does this without 'command and control'! In fact, we can say that peer production has enabled the global scaling of small-group dynamics.
  • And they have to be, because an undemocratic institution would also discourage contributions by the community of participants.
    • Kurt Laitner
       
      disagree, there are many ways to ethically distribute governance, not just democracy
  • Hence, an increased exodus of productive  capacities, in the form of direct use value production, outside the existing system of monetization, which only operates at its margins.
  • Where there is no tension between supply and demand, their can be no market, and no capital accumulation
  • Facebook and Google users create commercial value for their platforms, but only very indirectly and they are not at all rewarded for their own value creation.
  • Since what they are creating is not what is commodified on the market for scarce goods, there is no return of income for these value creators
  • This means that social media platforms are exposing an important fault line in our system
  • If you did not contribute, you had no say, so engagement was and is necessary.
    • Kurt Laitner
       
      key divergence from birth/process citizenship driven democracy
  • ⁃   At the core of value creation are various commons, where the innovations are deposited for all humanity to share and to build on ⁃   These commons are enabled and protected through nonprofit civic associations, with as national equivalent the Partner State, which empowers and enables that social production ⁃   Around the commons emerges a vibrant commons-oriented economy undertaken by different kinds of ethical companies, whose legal structures ties them to the values and goals of the commons communities, and not absentee and private shareholders intent of maximising profit at any cost
  • the citizens deciding on the optimal shape of their provisioning systems.
    • Kurt Laitner
       
      ie value equations..?
  • Today, it is proto-mode of production which is entirely inter-dependent with the system of capital
  • Is there any possibility to create a really autonmous model of peer production, that could create its own cycle of reproduction?
  • contribute
    • Kurt Laitner
       
      defined as?
    • Tiberius Brastaviceanu
       
      "ad hoc": perhaps based on context, needs and everyone's understanding of the situation
  • and whose mission is the support of the commons and its contributors
  • In this way, the social reproduction of commoners would no longer depend on the accumulation cycle of capital, but on its own cycle of value creation and realization
  • Phyles are mission-oriented, purpose-driven, community-supportive entities that operate in the market, on a global scale, but work for the commons.
  • peer production license, which has been proposed by Dmytri Kleiner.
  • Thijs Markus writes  so eloquently about Nike in the Rick Falkvinge blog, if you want to sell $5 shoes for $150 in the West, you better have one heck of a repressive IP regime in place.
  • Hence the need for SOPA/PIPA , ACTA'S and other attempts to criminalize the right to share.
  • An economy of scope exists between the production of two goods when two goods which share a CommonCost are produced together such that the CommonCost is reduced.
  • shared infrastructure costs
  • 2) The current system beliefs that innovations should be privatized and only available by permission or for a hefty price (the IP regime), making sharing of knowledge and culture a crime; let's call this feature, enforced 'artificial scarcity'.
  • 1) Our current system is based on the belief of infinite growth and the endless availability of resources, despite the fact that we live on a finite planet; let's call this feature, runaway 'pseudo-abundance'.
  • So what are the economies of scope of the new p2p age? They come in two flavours: 1) the mutualizing of knowledge and immaterial resources 2) the mutualizing of material productive resources
  • how does global governance look like in P2P civilization?
  • conflicts between contributors
  • are not decided by authoritarian fiat, but by 'negotiated coordination'.
Tiberius Brastaviceanu

Permaculture Principles | Design Principles - 1 views

  • how the principles of permaculture might apply to business.
  • The shift will be from merely prioritising output to thinking more widely.
  • how to build resilience for business
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  • observation
  • A post-peak world will depend on detailed observation and good design rather than energy-intensive solutions.
  • not rely on weather forecasts but to learn to read the clouds,
  • “instead of researching the market, be the market”
  • businesses should be out there observing.
  • larger businesses tend to rely more on surveys and on second-hand information.
  • direct contact with customers.
  • move our idea of ‘capital’ from what we have in the bank, to the resources we have around us
  • not running a business on a constant high speed cash throughput with little or no capital reserves
  • lack of resilience in the just-in-time supply approach
  • a shift to storages of parts and materials, as well as the need to financially not be so dependent on debt financing
  • work slower with more financial reserves and take less risks, not building beyond what the company’s financial resources can support.
  • either to not borrow any money at all, or to borrow so much money that you can’t fail, being bigger than the people you borrow money from, so they have a vested interest in your succeeding!
  • energy efficient
  • long term
  • Looking to make buildings as autonomous as possible in a world entering energy descent is critical
  • see things that are flowing past and through the business that others don’t see as being a resource and having no monetary value as being valuable.
  • any intervention we make in a system, any changes we make or elements we introduce ought to be productive
  • This is instinctive to businesses
  • Obtain a Yield, in this context, is out of balance
  • much of business
  • have taken this to extremes
  • A well-designed system using permaculture principles should be able to self-regulate, and require the minimum of intervention and maintenance, like a woodland ecosystem, which requires no weeding, fertiliser or pest control.
  • moving from “we’re just obeying the law” to being proactive, acting before you get hit over the head with regulation and other vulnerabilities.
  • be able to put a foot on the break, not just going hell for leather on profit maximisation.
  • apply applied restraint, avoiding excessive, overfast growth that hasn’t been consolidated
  • looking for the negative feedbacks, from customers and from the environment in general
  • We need to increase the tightness of feedbacks.
  • Where nature can perform particular functions
  • we should utilise these attributes, rather than thinking we can replace them
  • Where nature can take some work off our hands we should let it.
  • a shift towards renewable resources
  • The emerging opportunities for businesses are things that are renewable. Renewable energy sources are the ones that will ensure a business’s stability in the long run. We can also broaden the concept of renewable resources to include things like goodwill and trust, things which a business can rebuild with good husbandry. Most business doesn’t just depend on law and competition, trust is at the heart of much business and it is very much a renewable resource.
  • The concept of waste is essentially a reflection of poor design. Every output from one system could become the input to another system. We need to think cyclically rather than in linear systems.
  • looking at our work from a range of perspectives
  • wider context
  • keep a clearer sense of the wider canvas on which we are painting, and the forces that affect what we are doing.
  • being strategic is important too
  • ask how is what we are doing part of a bigger picture, the move away from globalisation and towards the local, taking steps back from the everyday.
  • This can be done firstly by allowing space for Devil’s advocates, for black sheep, for hearing the voices of those outside of the dominant culture of the organisation and secondly by looking from a holistic perspective of how things interconnect, rather than just relying on experts who are embedded in detail. It emphasises the need to value the generalist, to give value to holistic thinkers.
  • allowing people to imagine different possibilities.
  • scenario planning
  • Permaculture has been described as the science of maximising beneficial relationships.
  • Solutions are to be found in integrated holistic solutions rather than increased specialisation and compartmentalisation
  • The challenge here is to move to seeing business as being part of the geographical community, as being rooted in place, rather than just part of a globalised community. At the moment for many larger businesses, the local is something one pays lip-service to as a source of good PR, something one is passing through, rather than actually being an integral part of the community.
  • This is a profound structural challenge for large organisations. Part of the resilience of the organisation comes from the degree of lateral integration. Resilience is in all solutions, it is the characteristic of ecological systems. If we apply these principles, resilience is one of the emergent properties
  • the notion that big is best needs to be challenged
  • new opportunities are very hard to understand and exploit from a macro level perspective, and are much better done from small scale perspective. It is here that the idea of appropriateness of scale becomes key.
  • more diverse systems have much more inbuilt resilience
  • have a diversity of small businesses, local currencies, food sources, energy sources and so on than if they are just dependent on centralised systems, globalisation’s version of monoculture.
  • not having all your eggs in one basket.
  • In the short term this kind of diversification could reduce profits, but in the longer term it will be more secure
  • this is about the reverse of specialisation, about having a mixed portfolio, and presents a big culture change for businesses.
  • it is a good strategy for business to keep a diverse portfolio of what sustains the business, keep some things that appear to be peripheral. They may not at this stage appear to be a serious part of how the business is run, but in this new world they will increasingly become so
  • ‘edge’
  • the point where two ecosystems meet is often more productive than either of those systems on their own.
  • overlap systems where possible so as to maximise their potential.
  • recognising that innovation doesn’t come from the centre but from fringe thinkers.
  • giving status to the marginal
  • It is important that the business has as many fingers in as many pies as possible, as many interfaces, and recognises that every person working for the business represents it in the community.
  • Natural systems are constantly in flux, evolving and growing.
  • Remaining observant of the changes around you, and not fixing onto the idea that anything around you is fixed or permanent will help too.
  • be flexible, lean and adaptable
  • A healthy approach is to start with no complete plan, to allow the process to be emergent. This is not a time when we can work to a rigid plan as conditions will change so fast. Organisations will need to stay on their toes, without rigid management.
Tiberius Brastaviceanu

Beyond Blockchain: Simple Scalable Cryptocurrencies - The World of Deep Wealth - Medium - 0 views

  • I clarify the core elements of cryptocurrency and outline a different approach to designing such currencies rooted in biomimicry
  • This post outlines a completely different strategy for implementing cryptocurrencies with completely distributed chains
  • Rather than trying to make one global, anonymous, digital cash
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  • we are interested in the resilience that comes from building a rich ecosystem of interoperable currencies
  • What are the core elements of a modern cryptocurrency?
  • Digital
  • Holdings are electronic and only exist and operate by virtue of a community’s agreement about how to interpret digital bits according to rules about operation and accounting of the currency.
  • Trustless
  • don’t have to trust a 3rd party central authority
  • Decentralized
  • Specifically, access, issuance, transaction accounting, rules & policies, should be collectively visible, known, and held.
  • Cryptographic
  • This cryptographic structure is used to enable a variety of people to host the data without being able to alter it.
  • Identity
  • there must be a way to associate these bits with some kind of account, wallet, owner, or agent who can use them
  • Other things that many take for granted in blockchains may not be core but subject to decisions in design and implementation, so they can vary between implementations
  • It does not have to be stored in a synchronized global ledger
  • does not have to be money. It may be a reputation currency, or data used for identity, or naming, etc
  • Its units do not have to be cryptographic tokens or coins
  • It does not have to protect the anonymity of users, although it may
  • if you think currency is only money, and that money must be artificially scarce
  • Then you must tackle the problem of always tracking which coins exist, and which have been spent. That is one approach — the one blockchain takes.
  • You might optimize for anonymity if you think of cryptocurrency as a tool to escape governments, regulations, and taxes.
  • if you want to establish and manage membership in new kinds of commons, then identity and accountability for actions may turn out to be necessary ingredients instead of anonymity.
  • In the case of the MetaCurrency Project, we are trying to support many use cases by building tools to enable a rich ecosystem of communities and current-sees (many are non-monetary) to enhance collective intelligence at all scales.
  • Managing consensus about a shared reality is a central challenge at the heart of all distributed computing solutions.
  • If we want to democratize money by having cryptocurrencies become a significant and viable means of transacting on a daily basis, I believe we need fundamentally more scalable approaches that don’t require expensive, dedicated hardware just to participate.
  • We should not need system wide consensus for two people to do a transaction in a cryptocurrency
  • Blockchain is about managing a consensus about what was “said.” Ceptr is about distributing a consensus about how to “speak.”
  • how nature gets the job done in massively scalable systems which require coordination and consistency
  • Replicate the same processes across all nodes
  • Empower every node with full agency
  • Hold this transformed state locally and reliably
  • Establish protocols for interaction
  • Each speaker of a language carries the processes to understand sentences they hear, and generate sentences they need
  • we certainly don’t carry some kind of global ledger of everything that’s ever been said, or require consensus about what has been said
  • Language IS a communication protocol we learn by emulating the processes of usage.
  • Dictionaries try to catch up when the usage
  • there is certainly no global ledger with consensus about the state of trillions of cells. Yet, from a single zygote’s copy of DNA, our cells coordinate in a highly decentralized manner, on scales of trillions, and without the latency or bottlenecks of central control.
  • Imagine something along the lines of a Java Virtual Machine connected to a distributed version of Github
  • Every time this JVM runs a program it confirms the hash of the code it is about to execute with the hash signed into the code repository by its developers
  • This allows each node that intends to be honest to be sure that they’re running the same processes as everyone else. So when two parties want to do a transaction, and each can have confidence their own code, and the results that your code produces
  • Then you treat it as authoritative and commit it to your local cryptographically self-validating data store
  • Allowing each node to treat itself as a full authority to process transactions (or interactions via shared protocols) is exactly how you empower each node with full agency. Each node runs its copy of the signed program/processes on its own virtual machine, taking the transaction request combined with the transaction chains of the parties to the transaction. Each node can confirm their counterparty’s integrity by replaying their transactions to produce their current state, while confirming signatures and integrity of the chain
  • If both nodes are in an appropriate state which allows the current transaction, then they countersign the transaction and append to their respective chains. When you encounter a corrupted or dishonest node (as evidenced by a breach of integrity of their chain — passing through an invalid state, broken signatures, or broken links), your node can reject the transaction you were starting to process. Countersigning allows consensus at the appropriate scale of the decision (two people transacting in this case) to lock data into a tamper-proof state so it can be stored in as many parallel chains as you need.
  • When your node appends a mutually validated and signed transaction to its chain, it has updated its local state and is able to represent the integrity of its data locally. As long as each transaction (link in the chain) has valid linkages and countersignatures, we can know that it hasn’t been tampered with.
  • If you can reliably embody the state of the node in the node itself using Intrinsic Data Integrity, then all nodes can interact in parallel, independent of other interactions to maximize scalability and simultaneous processing. Either the node has the credits or it doesn’t. I don’t have to refer to a global ledger to find out, the state of the node is in the countersigned, tamper-proof chain.
  • Just like any meaningful communication, a protocol needs to be established to make sure that a transaction carries all the information needed for each node to run the processes and produce a new signed and chained state. This could be debits or credits to an account which modify the balance, or recoding courses and grades to a transcript which modify a Grade Point Average, or ratings and feedback contributing to a reputation score, and so on.
  • By distributing process at the foundation, and leveraging Intrinsic Data Integrity, our approach results in massive improvements in throughput (from parallel simultaneous independent processing), speed, latency, efficiency, and cost of hardware.
  • You also don’t need to incent people to hold their own record — they already want it.
  • Another noteworthy observation about humans, cells, and atoms, is that each has a general “container” that gets configured to a specific use.
  • Likewise, the Receptors we’ve built are a general purpose framework which can load code for different distributed applications. These Receptors are a lightweight processing container for the Ceptr Virtual Machine Host
  • Ceptr enables a developer to focus on the rules and transactions for their use case instead of building a whole framework for distributed applications.
  • how units in a currency are issued
  • Most people think that money is just money, but there are literally hundreds of decisions you can make in designing a currency to target particular needs, niches, communities or patterns of flow.
  • Blockchain cryptocurrencies are fiat currencies. They create tokens or coins from nothing
  • These coins are just “spoken into being”
  • the challenging task of
  • ensure there is no counterfeiting or double-spending
  • Blockchain cryptocurrencies are fiat currencies
  • These coins are just “spoken into being”
  • the challenging task of tracking all the coins that exist to ensure there is no counterfeiting or double-spending
  • You wouldn’t need to manage consensus about whether a cryptocoin is spent, if your system created accounts which have normal balances based on summing their transactions.
  • In a mutual credit system, units of currency are issued when a participant extends credit to another user in a standard spending transaction
  • Alice pays Bob 20 credits for a haircut. Alice’s account now has -20, and Bob’s has +20.
  • Alice spent credits she didn’t have! True
  • Managing the currency supply in a mutual credit system is about managing credit limits — how far people can spend into a negative balance
  • Notice the net number units in the system remains zero
  • One elegant approach to managing mutual credit limits is to set them based on actual demand.
  • concerns about manufacturing fake accounts to game credit limits (Sybil Attacks)
  • keep in mind there can be different classes of accounts. Easy to create, anonymous accounts may get NO credit limit
  • What if I alter my code to give myself an unlimited credit limit, then spend as much as I want? As soon as you pass the credit limit encoded in the shared agreements, the next person you transact with will discover you’re in an invalid state and refuse the transaction.
  • If two people collude to commit an illegal transaction by both hacking their code to allow a normally invalid state, the same still pattern still holds. The next person they try to transact with using untampered code will detect the problem and decline to transact.
  • Most modern community currency systems have been implemented as mutual credit,
  • Hawala is a network of merchants and businessmen, which has been operating since the middle ages, performing money transfers on an honor system and typically settling balances through merchandise instead of transferring money
  • Let’s look at building a minimum viable cryptocurrency with the hawala network as our use case
  • To minimize key management infrastructure, each hawaladar’s public key is their address or identity on the network. To join the network you get a copy of the software from another hawaladar, generate your public and private keys, and complete your personal profile (name, location, contact info, etc.). You call, fax, or email at least 10 hawaladars who know you, and give them your IP address and ask them to vouch for you.
  • Once 10 other hawaladars have vouched for you, you can start doing other transactions because the protocol encoded in every node will reject a transaction chain that doesn’t start with at least 10 vouches
  • seeding your information with those other peers so you can be found by the rest of the network.
  • As described in the Mutual Credit section, at the time of transaction each party audits the counterparty’s transaction chain.
  • Our hawala crypto-clearinghouse protocol has two categories of transactions: some used for accounting and others for routing. Accounting transactions change balances. Routing transactions maintain network integrity by recording information about hawaladar
  • Accounting Transactions create signed data that changes account balances and contains these fields:
  • The final hash of all of the above fields is used as a unique transaction ID and is what each of party signs with their private keys. Signing indicates a party has agreed to the terms of the transaction. Only transactions signed by both parties are considered valid. Nodes can verify signatures by confirming that decryption of the signature using the public key yields a result which matches the transaction ID.
  • Routing Transactions sign data that changes the peers list and contain these fields:
  • As with accounting transactions, the hash of the above fields is used as the transaction’s unique key and the basis for the cryptographic signature of both counterparties.
  • Remember, instead of making changes to account balances, routing transactions change a node’s local list of peers for finding each other and processing.
  • a distributed network of mutual trust
  • operates across national boundaries
  • everyone already keeps and trusts their own separate records
  • Hawaladars are not anonymous
  • “double-spending”
  • It would be possible for someone to hack the code on their node to “forget” their most recent transaction (drop the head of their chain), and go back to their previous version of the chain before that transaction. Then they could append a new transaction, drop it, and append again.
  • After both parties have signed the agreed upon transaction, each party submits the transaction to separate notaries. Notaries are a special class of participant who validate transactions (auditing each chain, ensuring nobody passes through an invalid state), and then they sign an outer envelope which includes the signatures of the two parties. Notaries agree to run high-availability servers which collectively manage a Distributed Hash Table (DHT) servicing requests for transaction information. As their incentive for providing this infrastructure, notaries get a small transaction fee.
  • This approach introduces a few more steps and delays to the transaction process, but because it operates on independent parallel chains, it is still orders of magnitude more efficient and decentralized than reaching consensus on entries in a global ledger
  • millions of simultaneous transactions could be getting processed by other parties and notaries with no bottlenecks.
  • There are other solutions to prevent nodes from dropping the head of their transaction chain, but the approach of having notaries serve out a DHT solves a number of common objections to completely distributed accounting. Having access to reliable lookups in a DHT provides a similar big picture view that you get from a global ledger. For example, you may want a way to look up transactions even when the parties to that transaction are offline, or to be able to see the net system balance at a particular moment in time, or identify patterns of activity in the larger system without having to collect data from everyone individually.
  • By leveraging Intrinsic Data Integrity to run numerous parallel tamper-proof chains you can enable nodes to do various P2P transactions which don’t actually require group consensus. Mutual credit is a great way to implement cryptocurrencies to run in this peered manner. Basic PKI with a DHT is enough additional infrastructure to address main vulnerabilities. You can optimize your solution architecture by reserving reserve consensus work for tasks which need to guarantee uniqueness or actually involve large scale agreement by humans or automated contracts.
  • It is not only possible, but far more scalable to build cryptocurrencies without a global ledger consensus approach or cryptographic tokens.
  •  
    Article written by Arthur Brook, founder of Metacurrency project and of Ceptr.
Tiberius Brastaviceanu

Key (lock) - Wikipedia, the free encyclopedia - 0 views

  • Key systems
  • Individually keyed system (KD)[edit] With an individually keyed system, each cylinder can be opened by its unique key
  • Keyed alike (KA)[edit] This system allows for a number of cylinders to be operated by the same key. It is ideally suited to residential and commercial applications such as front and back doors.
  • ...10 more annotations...
  • Common entrance suite / Maison keying (CES)[edit] This system is widely used in apartments, office blocks and hotels. Each apartment (for example) has its own individual key which will not open the doors to any other apartments, but will open common entrance doors and communal service areas. It is often combined with a master-keyed system in which the key is kept by the landlord.
  • Master keyed (MK)
  • A master key operates a set of several locks. Usually, there is nothing special about the key itself, but rather the locks into which it will fit.
  • A practical attack exists to create a working master key for an entire system given only access to a single master-keyed lock, its associated change key, a supply of appropriate key blanks, and the ability to cut new keys. This is described in Cryptology and Physical Security: Rights Amplification in Master-Keyed Mechanical Locks.[36] However, for systems with many levels of master keys, it may be necessary to collect information from locks in different "subsystems" in order to deduce the master key. Locksmiths may also determine cuts for a replacement master key, when given several different key examples from a given system.
  • Control key
  • A control key is a special key used in removable core locking systems. The control key enables a user, who has very little skill, to remove from the core, with a specific combination, and replace it with a core that has a different combination.
  • Do not duplicate key
  • A "do not duplicate" key (or DND key, for short) is one that has been stamped "do not duplicate", "duplication prohibited
  • Restricted key
  • A restricted keyblank has a keyway for which a manufacturer has set up a restricted level of sales and distribution. Restricted keys are often protected by patent, which prohibits other manufacturers from making unauthorized productions of the key blank. In many cases, customers must provide proof of ID before a locksmith will cut additional keys using restricted blanks. Some companies, such as Medeco High Security Locks, have keyways that are restricted to having keys cut in the factory only. This is done to ensure the highest amount of security. These days, many restricted keys have special in-laid features, such as magnets, different types of metal, or even small computer chips to prevent duplication.
Kurt Laitner

Asia Times Online :: Nondominium - the Caspian solution - 0 views

  • A Caspian partnership The proposal is that the littoral states should form a Caspian Foundation legal entity, and commit to that entity all existing rights in respect of the use, and the fruits of use (usufruct), of the Caspian Sea, and everything on it, in it, or under it. The Caspian Foundation would act as custodian or steward and the nations would have agreed governance rights of veto. This negative or passive veto right of stewardship is very different from conventional property rights of absolute ownership and temporary use under condominium. Moreover, it does not have the active power of control held under common law by a trustee on behalf of beneficiaries, and the legal complexities and management conflicts which go with it. The Caspian Foundation would be a subscriber to a Caspian Partnership framework agreement between the nations, investors of money or money's worth, and a consortium of service providers. This Caspian Partnership would not be yet another international organization, with everything that goes with that. It would not own anything, employ anyone or contract with anyone: it would simply be an associative framework agreement within which Caspian nations self-organize to the common purpose of the sustainable development of the Caspian Sea.
  • Nondominium - the Caspian solution By Chris Cook Twenty-first century problems cannot be solved with 20th century solutions. Nowhere is that saying so true as in territorial disputes where oil and gas are involved. The riches of the Caspian Sea have been the subject of dispute for years, and relatively simple - but still intractable - binary issues between Iran and Russia are now multiplied by the conflicting claims of what are now five littoral Caspian nations: Azerbaijan, Iran; Kazakhstan; Russia and Turkmenistan. Their claims relate not just to rights on the Caspian Sea surface, but to rights in the sea, and above all to the rights to the treasures that lie under it. There are two 20th century legal approaches: international law //ad information var tf_adModel = "FEV"; var tf_adType = "InBannerVideo"; var tf_commonLocation = "http://cdnx.tribalfusion.com/media/common/expand/"; //leave this variable as it is var tf_cookieFlash = "http://cdnx.tribalfusion.com/media/common/TFSObj_v2s"; var tf_isExpansionHandle = true; var tf_floatAdScriptPath = "http://cdnx.tribalfusion.com/media/common/floating/TF_FloatAdLibrary.js"; var tf_zoomFlash = "http://cdnx.tribalfusion.com/media/common/floating/TFScale_v1"; var tf_banner = { "flag" : "inBanner", "width" : 300, "height" : 250, "widthExpanded" : 600, "heightExpanded" : 450, "widthFloating" : 950, "heightFloating" : 570, "iWin" : [ ], "flashFile" : "http://cdnx.tribalfusion.com/media/4523336/Glow_Banner_Square_Template_V201", extraFlashVars:"tf_showPanelonLoad=true&tf_phase2=false", "video_expand" : "http://cdnx.tribalfusion.com/media/4523336/video.flv", "imageFile" : 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  • A Caspian partnership The proposal is that the littoral states should form a Caspian Foundation legal entity, and commit to that entity all existing rights in respect of the use, and the fruits of use (usufruct), of the Caspian Sea, and everything on it, in it, or under it. The Caspian Foundation would act as custodian or steward and the nations would have agreed governance rights of veto. This negative or passive veto right of stewardship is very different from conventional property rights of absolute ownership and temporary use under condominium. Moreover, it does not have the active power of control held under common law by a trustee on behalf of beneficiaries, and the legal complexities and management conflicts which go with it. The Caspian Foundation would be a subscriber to a Caspian Partnership framework agreement between the nations, investors of money or money's worth, and a consortium of service providers. This Caspian Partnership would not be yet another international organization, with everything that goes with that. It would not own anything, employ anyone or contract with anyone: it would simply be an associative framework agreement within which Caspian nations self-organize to the common purpose of the sustainable development of the Caspian Sea.
  • ...1 more annotation...
  • A Caspian partnership The proposal is that the littoral states should form a Caspian Foundation legal entity, and commit to that entity all existing rights in respect of the use, and the fruits of use (usufruct), of the Caspian Sea, and everything on it, in it, or under it. The Caspian Foundation would act as custodian or steward and the nations would have agreed governance rights of veto. This negative or passive veto right of stewardship is very different from conventional property rights of absolute ownership and temporary use under condominium. Moreover, it does not have the active power of control held under common law by a trustee on behalf of beneficiaries, and the legal complexities and management conflicts which go with it. The Caspian Foundation would be a subscriber to a Caspian Partnership framework agreement between the nations, investors of money or money's worth, and a consortium of service providers. This Caspian Partnership would not be yet another international organization, with everything that goes with that. It would not own anything, employ anyone or contract with anyone: it would simply be an associative framework agreement within which Caspian nations self-organize to the common purpose of the sustainable development of the Caspian Sea.
Tiberius Brastaviceanu

Field Ready - 1 views

  •  
    Humanitarian Aid Supplies Made-in-the-Field
Tiberius Brastaviceanu

BeagleBone Black ID: 1278 - $45.00 : Adafruit Industries, Unique & fun DIY electronics ... - 2 views

    • Tiberius Brastaviceanu
       
      Ronan bla bla bla
  • If you liked the BeagleBone, you will love the next gen BeagleBone Black! With a blistering 1GHz processor, 512MB onboard DDR3 RAM, built in 2GB storage with pre-installed Linux operating system (no microSD card required!), and best of all, the addition of a MicroHDMI connector for audio/video output. This is a ultra-powered embedded computer that can fit in a mint tin. Note: As of June 4, 2013, 1pm ET Adafruit is shipping Rev A5B.
  • n on supported accessories as we test them for compatibility. For now we suggest picking up a 5V 2A power supply and a micro-HDMI cable. If you want to use it 'head-less', a USB console cable is suggested as the 'Black does not have an onboard USB-to-Serial converter
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