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Tantalum diselenide-Synthesis-Chemical Vapor Transport In general, TMDs can be synthesized through a chemical vapor transport technique accordingly to the following chemical equation: (n−1n)M+1nMCl5+2X⟶MX2+52nCl2 where M is the chosen transition metal (Ta, Mo, etc.) and X represents the chosen chalcogen element (Se, ... | milkshake721/2.1M-wiki-STEM |
Tantalum diselenide-Synthesis-Chemical Vapor Deposition Using powder of TaCl5 and Se as precursors, and a gold substrate, the 2H phase can be stabilized. The gold substrate has to be heated up to 930 °C, while TaCl5 and Se can be heated to 650 °C and 300 °C, respectively. Argon and hydrogen gases are used as carriers. ... | milkshake721/2.1M-wiki-STEM |
Tantalum diselenide-Synthesis-Mechanical exfoliation Since the single trilayers are kept together only by weak Van der Waals forces, atomically thin layers of tantalum diselenide can be easily separated by using scotch/carbon tape on the bulk TaSe2 crystals. With this method it is possible to isolate few layers (or eve... | milkshake721/2.1M-wiki-STEM |
Tantalum diselenide-Synthesis-Molecular Beam Epitaxy Pure tantalum is directly sublimated on a bilayer of graphene inside a selenium atmosphere. Depending on the temperature of the substrate Ts (graphene bilayer), the 1T or the 2H phase can be stabilized: in particular, if 450 °C the 2H is favoured, while at 560 °C ... | milkshake721/2.1M-wiki-STEM |
Tantalum diselenide-Synthesis-Liquid Phase Exfoliation Bulk crystals of TaSe2 (or any other TMDs) are put in a solution of pure alcohol. The mixture is then sonicated in an ultrasonic device with a power of at least 450 W for 15 hours. In this way it is possible to overcome the Van der Waals forces that keep the single... | milkshake721/2.1M-wiki-STEM |
Tantalum diselenide-Research-Optoelectronics Since 2H TaSe2 has been found to feature very large optical absorption and emission of light at approximately 532 nm, it might be used for the development of new devices. In particular, the possibility of transferring energy between TaSe2 and other TMDs, especially MoS2, has... | milkshake721/2.1M-wiki-STEM |
Tantalum diselenide-Research-All-Optical switch and transferring of information Exploiting the dependence of the non linear effects of TaSe2 by the intensity I of the incident laser beam, it is possible to build an all-optical switch by means of two lasers which operate at different wavelengths and intensities. In par... | milkshake721/2.1M-wiki-STEM |
Tantalum diselenide-Research-Exploiting the coupling between λ1 and λ2 enables transferring information from the high intensity beam to the low intensity one. With this method, the delay time for transferring the information from λ1 to λ2 is around 0.6 s Spin-orbit torque devices Usually spin-orbit torque and spin ... | milkshake721/2.1M-wiki-STEM |
Tantalum diselenide-Research-Hydrogen evolution reaction (HER) DFT and AIMD simulations suggest that the stacking of flakes of both TaSe2 and TaS2 in a disordered way could be used for the development of a new efficient and cheaper cathode that might be used for the extraction of H2 from other chemical compounds. | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Synthetic biology-Synthetic biology (SynBio) is a multidisciplinary field of science that focuses on living systems and organisms, and it applies engineering principles to develop new biological parts, devices, and systems or to redesign existing systems found in nature.It is a branch of science that ... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Synthetic biology-It includes designing and constructing biological modules, biological systems, and biological machines, or re-designing existing biological systems for useful purposes.Additionally, it is the branch of science that focuses on the new abilities of engineering into existing organisms t... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-History-1910: First identifiable use of the term synthetic biology in Stéphane Leduc's publication Théorie physico-chimique de la vie et générations spontanées. He also noted this term in another publication, La Biologie Synthétique in 1912.1944: Canadian-American scientist Oswald Avery shows that DNA... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-History-1961: Jacob and Monod postulate cellular regulation by molecular networks from their study of the lac operon in E. coli and envisioned the ability to assemble new systems from molecular components.1973: First molecular cloning and amplification of DNA in a plasmid is published in P.N.A.S. by C... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-History-1988: First DNA amplification by the polymerase chain reaction (PCR) using a thermostable DNA polymerase is published in Science by Mullis et al. This obviated adding new DNA polymerase after each PCR cycle, thus greatly simplifying DNA mutagenesis and assembly.
2000: Two papers in Nature repo... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-History-2019: Scientists at ETH Zurich report the creation of the first bacterial genome, named Caulobacter ethensis-2.0, made entirely by a computer, although a related viable form of C. ethensis-2.0 does not yet exist.2019: Researchers report the production of a new synthetic (possibly artificial) f... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Perspectives-It is a field whose scope is expanding in terms of systems integration, engineered organisms, and practical findings.Engineers view biology as technology (in other words, a given system includes biotechnology or its biological engineering). Synthetic biology includes the broad redefinitio... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Perspectives-Biomolecular design refers to the general idea of de novo design and additive combination of biomolecular components. Each of these approaches shares a similar task: to develop a more synthetic entity at a higher level of complexity by inventively manipulating a simpler part at the preced... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Categories of synthetic biology-Bioengineering, synthetic genomics, protocell synthetic biology, unconventional molecular biology, and in silico techniques are the five categories of synthetic biology.It is necessary to review the distinctions and analogies between the categories of synthetic biology ... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Categories of synthetic biology-Bioengineering The subfield of bioengineering concentrates on creating novel metabolic and regulatory pathways, and is currently the one that likely draws the attention of most researchers and funding. It is primarily motivated by the desire to establish biotechnology a... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Categories of synthetic biology-Synthetic genomics The formation of animals with a chemically manufactured (minimal) genome is another facet of synthetic biology that is highlighted by synthetic genomics. This area of synthetic biology has been made possible by ongoing advancements in DNA synthesis te... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Categories of synthetic biology-Protocell synthetic biology The in vitro generation of synthetic cells is the protocell branch of synthetic biology. Lipid vesicles, which have all the necessary components to function as a complete system, can be used to create these artificial cells. In the end, these... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Categories of synthetic biology-Unconventional molecular biology The objective of the "unnatural molecular biology" strategy is to create new varieties of life that are based on a different kind of molecular biology, such as new types of nucleic acids or a new genetic code. The creation of new types o... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Categories of synthetic biology-In silico technique Synthetic biology in silico and the various strategies are interconnected. The development of complex designs, whether they are metabolic pathways, fundamental cellular processes, or chassis genomes, is one of the major difficulties faced by the four... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Four engineering approaches-Synthetic biology has traditionally been divided into four different engineering approaches: top down, parallel, orthogonal and bottom up.To replicate emergent behaviours from natural biology and build artificial life, unnatural chemicals are used. The other looks for inter... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Four engineering approaches-Top-down approach It involves using metabolic and genetic engineering techniques to impart new functions to living cells. By comparing universal genes and eliminating non-essential ones to create a basic genome, this method seeks to lessen the complexity of existing cells. ... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Four engineering approaches-Bottom-up approach This approach involves creating new biological systems in vitro by bringing together 'non-living' biomolecular components, often with the aim of constructing an artificial cell. | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Four engineering approaches-Reproduction, replication, and assembly are three crucial self-organizational principles that are taken into account in order to accomplish this. Cells, which are made up of a container and a metabolism, are considered "hardware" in the definition of reproduction, whereas r... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Four engineering approaches-Parallel approach Parallel engineering is also known as bioengineering. The basic genetic code is the foundation for parallel engineering research, which uses conventional biomolecules like nucleic acids and the 20 amino acids to construct biological systems. For a variety ... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Four engineering approaches-Orthogonal approach It is also known as perpendicular engineering. This strategy, also referred to as "chemical synthetic biology," principally seeks to alter or enlarge the genetic codes of living systems utilising artificial DNA bases and/or amino acids. This subfield is ... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Enabling technologies-Several novel enabling technologies were critical to the success of synthetic biology. Concepts include standardization of biological parts and hierarchical abstraction to permit using those parts in synthetic systems. DNA serves as the guide for how biological processes should f... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Enabling technologies-DNA and gene synthesis Driven by dramatic decreases in costs of oligonucleotide ("oligos") synthesis and the advent of PCR, the sizes of DNA constructions from oligos have increased to the genomic level. In 2000, researchers reported synthesis of the 9.6 kbp (kilo bp) Hepatitis C... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Enabling technologies-Additionally, the CRISPR/Cas system has emerged as a promising technique for gene editing. It was described as "the most important innovation in the synthetic biology space in nearly 30 years". While other methods take months or years to edit gene sequences, CRISPR speeds that ti... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Enabling technologies-Sequencing DNA sequencing determines the order of nucleotide bases in a DNA molecule. Synthetic biologists use DNA sequencing in their work in several ways. First, large-scale genome sequencing efforts continue to provide information on naturally occurring organisms. This informa... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Enabling technologies-Modularity This is the ability of a system or component to operate without reference to its context.The most used: 22–23 standardized DNA parts are BioBrick plasmids, invented by Tom Knight in 2003. Biobricks are stored at the Registry of Standard Biological Parts in Cambridge, ... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Enabling technologies-Modeling Models inform the design of engineered biological systems by better predicting system behavior prior to fabrication. Synthetic biology benefits from better models of how biological molecules bind substrates and catalyze reactions, how DNA encodes the information needed t... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Enabling technologies-Microfluidics Microfluidics, in particular droplet microfluidics, is an emerging tool used to construct new components, and to analyze and characterize them. It is widely employed in screening assays. | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Enabling technologies-Synthetic transcription factors Studies have considered the components of the DNA transcription mechanism. One desire of scientists creating synthetic biological circuits is to be able to control the transcription of synthetic DNA in unicellular organisms (prokaryotes) and in mul... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Applications-Synthetic biology initiatives frequently aim to redesign organisms so that they can create a material, such as a drug or fuel, or acquire a new function, such as the ability to sense something in the environment. Examples of what researchers are creating using synthetic biology include: U... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Applications-Biosensors A biosensor refers to an engineered organism, usually a bacterium, that is capable of reporting some ambient phenomenon such as the presence of heavy metals or toxins. One such system is the Lux operon of Aliivibrio fischeri, which codes for the enzyme that is the source of bac... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Applications-Food and drink However, not all synthetic nutrition products are animal food products – for instance, as of 2021, there are also products of synthetic coffee that are reported to be close to commercialization. Similar fields of research and production based on synthetic biology that can b... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Applications-Biological computers A biological computer refers to an engineered biological system that can perform computer-like operations, which is a dominant paradigm in synthetic biology. Researchers built and characterized a variety of logic gates in a number of organisms, and demonstrated both a... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Applications-Cell transformation Cells use interacting genes and proteins, which are called gene circuits, to implement diverse function, such as responding to environmental signals, decision making and communication. Three key components are involved: DNA, RNA and Synthetic biologist designed gene ci... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Applications-Traditional metabolic engineering has been bolstered by the introduction of combinations of foreign genes and optimization by directed evolution. This includes engineering E. coli and yeast for commercial production of a precursor of the antimalarial drug, Artemisinin.Entire organisms hav... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Applications-Designed proteins Natural proteins can be engineered, for example, by directed evolution, novel protein structures that match or improve on the functionality of existing proteins can be produced. One group generated a helix bundle that was capable of binding oxygen with similar properties... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Applications-Designed nucleic acid systems Scientists can encode digital information onto a single strand of synthetic DNA. In 2012, George M. Church encoded one of his books about synthetic biology in DNA. The 5.3 Mb of data was more than 1000 times greater than the previous largest amount of informa... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Applications-Many technologies have been developed for incorporating unnatural nucleotides and amino acids into nucleic acids and proteins, both in vitro and in vivo. For example, in May 2014, researchers announced that they had successfully introduced two new artificial nucleotides into bacterial DNA... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Applications-Space exploration Synthetic biology raised NASA's interest as it could help to produce resources for astronauts from a restricted portfolio of compounds sent from Earth. On Mars, in particular, synthetic biology could lead to production processes based on local resources, making it a powe... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Applications-Synthetic life One important topic in synthetic biology is synthetic life, that is concerned with hypothetical organisms created in vitro from biomolecules and/or chemical analogues thereof. Synthetic life experiments attempt to either probe the origins of life, study some of the properti... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Applications-The first living organism with 'artificial' expanded DNA code was presented in 2014; the team used E. coli that had its genome extracted and replaced with a chromosome with an expanded genetic code. The nucleosides added are d5SICS and dNaM.In May 2019, in a milestone effort, researchers ... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Applications-Drug delivery platforms In therapeutics, synthetic biology has achieved significant advancements in altering and simplifying the therapeutics scope in a relatively short period of time. In fact, new therapeutic platforms, from the discovery of disease mechanisms and drug targets to the ma... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Applications-Engineered bacteria-based platform Bacteria have long been used in cancer treatment. Bifidobacterium and Clostridium selectively colonize tumors and reduce their size. Recently synthetic biologists reprogrammed bacteria to sense and respond to a particular cancer state. Most often bacteri... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Applications-Multiple species and strains are applied in these therapeutics. Most commonly used bacteria are Salmonella typhimurium, Escherichia Coli, Bifidobacteria, Streptococcus, Lactobacillus, Listeria and Bacillus subtilis. Each of these species have their own property and are unique to cancer th... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Applications-Engineered yeast-based platform Synthetic biologists are developing genetically modified live yeast that can deliver therapeutic biologic medicines. When orally delivered, these live yeast act like micro-factories and will make therapeutic molecules directly in the gastrointestinal tract.... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Applications-Cell-based platform The immune system plays an important role in cancer and can be harnessed to attack cancer cells. Cell-based therapies focus on immunotherapies, mostly by engineering T cells. | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Applications-T cell receptors were engineered and 'trained' to detect cancer epitopes. Chimeric antigen receptors (CARs) are composed of a fragment of an antibody fused to intracellular T cell signaling domains that can activate and trigger proliferation of the cell. A second generation CAR-based ther... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Applications-Biofuels, pharmaceuticals and biomaterials The most popular biofuel is ethanol produced from corn or sugar cane, but this method of producing biofuels is troublesome and constrained due to the high agricultural cost and inadequate fuel characteristics of ethanol. An substitute and potenti... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Applications-CRISPR/Cas9 The clustered frequently interspaced short palindromic repetitions (CRISPR)/CRISPR associated (Cas) system is a powerful method of genome engineering in a range of organisms because of its simplicity, modularity, and scalability. In this technique, a guide RNA (gRNA) attracts ... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Applications-Regulatory elements To build and develop biological systems, regulating components including regulators, ribosome-binding sites (RBSs), and terminators are crucial. Despite years of study, there are many various varieties and numbers of promoters and terminators for Escherichia coli, but ... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Applications-Organoids Synthetic biology has been used for organoids, which are lab-grown organs with application to medical research and transplantation. | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Applications-Bioprinted organs There are many applications for 3D bioprinting in the medical field. An infant patient with a rare respiratory disease known as tracheobronchomalacia (TBM) was given a tracheal splint that was created with 3D printing. 3D bioprinting can be used to reconstruct tissue fro... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Applications-Other transplants and induced regeneration There is ongoing research and development into synthetic biology based methods for inducing regeneration in humans as well the creation of transplantable artificial organs. | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Applications-Nanoparticles, artificial cells and micro-droplets Synthetic biology can be used for creating nanoparticles which can be used for drug-delivery as well as for other purposes. Complementing research and development seeks to and has created synthetic cells that mimics functions of biologica... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Ethics-The creation of new life and the tampering of existing life has raised ethical concerns in the field of synthetic biology and are actively being discussed.Common ethical questions include: Is it morally right to tamper with nature? Is one playing God when creating new life? What happens if a sy... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Ethics-The "creation" of life One ethical question is whether or not it is acceptable to create new life forms, sometimes known as "playing God". Currently, the creation of new life forms not present in nature is at small-scale, the potential benefits and dangers remain unknown, and careful considerat... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Ethics-Ethical support for synthetic biology Ethics and moral rationales that support certain applications of synthetic biology include their potential mitigation of substantial global problems of detrimental environmental impacts of conventional agriculture (including meat production), animal welfare... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Ethics-Biosafety and biocontainment What is most ethically appropriate when considering biosafety measures? How can accidental introduction of synthetic life in the natural environment be avoided? Much ethical consideration and critical thought has been given to these questions. Biosafety not only ref... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Ethics-In general, existing hazard controls, risk assessment methodologies, and regulations developed for traditional genetically modified organisms (GMOs) are considered to be sufficient for synthetic organisms. "Extrinsic" biocontainment methods in a laboratory context include physical containment t... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Ethics-Biosecurity and bioterrorism Some ethical issues relate to biosecurity, where biosynthetic technologies could be deliberately used to cause harm to society and/or the environment. Since synthetic biology raises ethical issues and biosecurity issues, humanity must consider and plan on how to dea... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Ethics-A subsequent report focused on biosecurity, especially the so-called dual-use challenge. For example, while synthetic biology may lead to more efficient production of medical treatments, it may also lead to synthesis or modification of harmful pathogens (e.g., smallpox). The biohacking communit... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Ethics-United States In January 2009, the Alfred P. Sloan Foundation funded the Woodrow Wilson Center, the Hastings Center, and the J. Craig Venter Institute to examine the public perception, ethics and policy implications of synthetic biology.On July 9–10, 2009, the National Academies' Committee of S... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Ethics-Opposition On March 13, 2012, over 100 environmental and civil society groups, including Friends of the Earth, the International Center for Technology Assessment, and the ETC Group, issued the manifesto The Principles for the Oversight of Synthetic Biology. This manifesto calls for a worldwide ... | milkshake721/2.1M-wiki-STEM |
Synthetic biology-Health and safety-The hazards of synthetic biology include biosafety hazards to workers and the public, biosecurity hazards stemming from deliberate engineering of organisms to cause harm, and environmental hazards. The biosafety hazards are similar to those for existing fields of biotechnology, mainl... | milkshake721/2.1M-wiki-STEM |
Product feed-Product feed-A product feed or product data feed is a file made up of a list of products and attributes of those products organized so that each product can be displayed, advertised or compared in a unique way. A product feed typically contains a product image, title, product identifier, marketing copy, an... | milkshake721/2.1M-wiki-STEM |
Product feed-Product feed-Product feeds supply the content that is presented on many kinds of e-commerce websites such as webshops, search engines, price comparison websites, affiliate networks, and other similar aggregators of e-commerce information. Product data feeds are generated by manufacturers, online retailers ... | milkshake721/2.1M-wiki-STEM |
Product feed-Applications-While product feeds differ in content and structure, the goal remains the same – deliver high-quality (fresh, relevant, accurate, comprehensive) information so that shoppers can make a buying decision.Product data feeds are often delivered between manufacturers, distributors and retailers, and... | milkshake721/2.1M-wiki-STEM |
Product feed-Applications-Paid search affiliates – PPC campaigns use API's that receive a range of attributes within product feeds to determine campaign keywords and bidding.
Affiliate networks – affiliate networks funnel products though their platforms from merchants to affiliates.
Marketplaces – receive product feeds... | milkshake721/2.1M-wiki-STEM |
Product feed-Feed formats-After announcing the importance of quality product data feeds, Google has updated its feed requirements.
Other product listing sites use proprietary formats that are either plain text or XML format.
Emerging RDF format: Semantic web standards such as RDF are taking root. It is expected product... | milkshake721/2.1M-wiki-STEM |
PowerDNS-PowerDNS-PowerDNS is a DNS server program, written in C++ and licensed under the GPL. It runs on most Unix derivatives. PowerDNS features a large number of different backends ranging from simple BIND style zonefiles to relational databases and load balancing/failover algorithms. A DNS recursor is provided as a... | milkshake721/2.1M-wiki-STEM |
PowerDNS-History-PowerDNS development began in 1999 and was originally a commercial proprietary product. In November 2002, the source code was made public under the open-source GPL v2 license. | milkshake721/2.1M-wiki-STEM |
PowerDNS-Features-PowerDNS Authoritative Server (pdns_server) consists of a single core, and multiple dynamically loadable backends that run multi-threaded. The core handles all packet processing and DNS intelligence, while one or more backends deliver DNS records using arbitrary storage methods. | milkshake721/2.1M-wiki-STEM |
PowerDNS-Features-Zone transfers and update notifications are supported, and the processes can run unprivileged and chrooted. Various caches are maintained to speed up query processing. Run-time control is available through the pdns_control command, which allows reloading of separate zones, cache purges, zone notificat... | milkshake721/2.1M-wiki-STEM |
PowerDNS-Features-There are many independent projects to create management interfaces for PowerDNS. | milkshake721/2.1M-wiki-STEM |
PowerDNS-Features-DNSSEC The PowerDNS Authoritative Server supports DNSSEC as of version 3.0. While pre-signed zones can be served, it is also possible to perform online signing & key management. This has the upside of being relatively easy, but the downside that the cryptographic keying material is present on the serv... | milkshake721/2.1M-wiki-STEM |
PowerDNS-Recursor-PowerDNS Recursor (pdns_recursor) is a resolving DNS server, that runs as a separate process.
This part of PowerDNS uses a combination of native threads and user-space threads, through the use of Boost and the MTasker library, which is a simple cooperative multitasking library. It is also available as... | milkshake721/2.1M-wiki-STEM |
PowerDNS-DNSdist-PowerDNS DNSdist (dnsdist) is a caching DNS proxy, with many features including: Load Balancing of DNS Queries DNS Encryption Support - DNS over HTTPS, DNS over TLS, both upstream and downstream (i.e. to clients and backends) Lua Policy Engine - Extensive capabilities for creating rules for processing ... | milkshake721/2.1M-wiki-STEM |
PowerDNS-DNSdist-Dynamic Rule Generation - Used to create Dynamic Blocks which are short-lived rules, automatically inserted based on configurable thresholds and the analysis of recently received traffic. Used to deal with DoS attacksDNSdist is available as a standalone package, and can be deployed with PowerDNS Author... | milkshake721/2.1M-wiki-STEM |
Methodological solipsism-Methodological solipsism-In epistemology and the philosophy of mind, methodological solipsism has at least two distinct definitions: Methodological solipsism is the epistemological thesis that the individual self and its states are the sole possible or proper starting point for philosophical co... | milkshake721/2.1M-wiki-STEM |
Methodological solipsism-Methodological solipsism-Methodological solipsism is the thesis that the mental properties or mental states of an organism can be individuated exclusively on the basis of that state or property's relations with other internal states of the organism itself, without any reference to the society o... | milkshake721/2.1M-wiki-STEM |
Methodological solipsism-Methodological solipsism-Fodor defines methodological solipsism as the extreme position that states that the content of someone's beliefs about, say, water has absolutely nothing to do with the substance water in the outside world, nor with the commonly accepted definition of the society in whi... | milkshake721/2.1M-wiki-STEM |
Methodological solipsism-Methodological solipsism-In contrast, Fodor defines methodological individualism as the view that mental states have a semantically evaluable character—that is, they are relational states. The relation that provides semantic meaning can be a relation with the external world or with one's cultur... | milkshake721/2.1M-wiki-STEM |
Stream capture-Stream capture-Stream capture, river capture, river piracy or stream piracy is a geomorphological phenomenon occurring when a stream or river drainage system or watershed is diverted from its own bed, and flows instead down the bed of a neighbouring stream. This can happen for several reasons, including:... | milkshake721/2.1M-wiki-STEM |
Stream capture-Stream capture-Within an area of karst topography, where streams may sink, or flow underground (a sinking or losing stream) and then reappear in a nearby stream valley Glacier retreatThe additional water flowing down the capturing stream may accelerate erosion and encourage the development of a canyon (g... | milkshake721/2.1M-wiki-STEM |
Stream capture-Capture mechanisms-Sea level rise The Kaituna and Pelorus rivers, New Zealand: About 8,000 years ago, a single river was divided by sea water to form two rivers.
Tectonic uplift Barmah Choke: About 25,000 years ago, an uplift of the plains near Moama on the Cadell Fault first dammed the Murray River and ... | milkshake721/2.1M-wiki-STEM |
Stream capture-Capture mechanisms-Indus-Sutlej-Sarasvati-Yamuna: The Yamuna earlier flowed into the Ghaggar-Hakra River (identified with the Sarasvati River) and later changed its course due to plate tectonics. The Sutlej River flowed into the current channel of the Ghaggar-Hakra River until the 13th century after whic... | milkshake721/2.1M-wiki-STEM |
Stream capture-Capture mechanisms-Glacial damming The River Thames in southern England originally entered the North Sea near Ipswich. About 450,000 years ago, an ice sheet expanding from the north pushed the course of the river southwards, forcing the Thames to cut a new mouth where the mouth of the River Blackwater, E... | milkshake721/2.1M-wiki-STEM |
Stream capture-Capture mechanisms-Headward erosion The Teays River, captured by the Ohio River.
The Rio Grande which before capture flowed into a closed basin, Lake Cabeza de Vaca, but after capture flowed into the Gulf of Mexico.
The ancestral Niger River captured what is now the upper reaches of the Niger which once ... | milkshake721/2.1M-wiki-STEM |
Stream capture-Capture mechanisms-Glacier retreat The Slims River was previously fed by meltwater from the Kaskawulsh Glacier in the St. Elias Mountains in the Yukon and its waters flowed into Kluane Lake and on to the Bering Sea. Because of climate change, the glacier has rapidly receded and the meltwater no longer fe... | milkshake721/2.1M-wiki-STEM |
Stream capture-Effect on freshwater life-River capture is a shaping force in the biogeography or distribution of many freshwater fish species.
New Zealand freshwater fish Geological uplift in the southern South Island led to the divergence of freshwater galaxiid populations isolated by river capture. | milkshake721/2.1M-wiki-STEM |
Stream capture-Effect on freshwater life-Australian freshwater fish The formerly massive Great Dividing Range runs the length of the eastern coastline of Australia and has isolated native freshwater fish populations east and west of the range for millions of years. In the last two million years erosion has reduced the ... | milkshake721/2.1M-wiki-STEM |
Stream capture-Effect on freshwater life-None of the river capture events that allowed native fish of the Murray-Darling system to cross into and colonise these East Coast river systems seem to have formed permanent linkages. The colonising Murray-Darling fish in these East Coast river systems have therefore become iso... | milkshake721/2.1M-wiki-STEM |
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