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Sigma factor-Sigma factor competition-The number of RNAPs in bacterial cells (e.g., E. coli) have been shown to be smaller than the number of sigma factors. Consequently, if a certain sigma factor is overexpressed, not only will increase the expression levels of genes whose promoters have preference for that sigma fact...
milkshake721/2.1M-wiki-STEM
Sigma factor-Genes with dual sigma factor preference-While most genes of E. coli can be recognized by an RNAP with one and only one type of sigma factor (e.g. sigma 70), a few genes (~ 5%) have what is called a “dual sigma factor preference”, that is, they can respond to two different sigma factors, as reported in Regu...
milkshake721/2.1M-wiki-STEM
X-linked reticulate pigmentary disorder-X-linked reticulate pigmentary disorder-X-linked reticulate pigmentary disorder is a rare X-linked genetic condition in which males manifest multiple systemic symptoms and a reticulated mottled brown pigmentation of the skin, which, on biopsy, demonstrated dermal deposits of amyl...
milkshake721/2.1M-wiki-STEM
X-linked reticulate pigmentary disorder-X-linked reticulate pigmentary disorder-It was characterized in 1981. Mutation of the POLA1 gene leads to loss of expression of the catalytic subunit of DNA polymerase-α and is responsible for XLPDR. Loss of POLA1 expression results in reduced levels of RNA:DNA hybrids in the cyt...
milkshake721/2.1M-wiki-STEM
X-linked reticulate pigmentary disorder-Presentation-Affected males develop generalized reticular hyperpigmentation in early childhood. Hair often looks bedraggled or brushed backward, hanging low on the forehead. Under XLPDR conditions, autoimmune manifestations are developed due to chronically activated anti-viral ty...
milkshake721/2.1M-wiki-STEM
X-linked reticulate pigmentary disorder-Presentation-Most XLPDR patients stabilize with age and have an overall less complicated clinical course after adolescence. Gastrointestinal and urinary tract complications are progressively less active, and the pace of infections tends to decrease. However, those who have severe...
milkshake721/2.1M-wiki-STEM
X-linked reticulate pigmentary disorder-Diagnosis-All XLPDR probands shared the same unique intronic variant mapping to intron 13 of POLA1, (NM_016937.3:c.1375-354A>G). XLPDR lacks allelic heterogeneity, meaning that the disorder is uniquely associated with the NM_016937.3:c.1375-354A>G intronic variant. The final diag...
milkshake721/2.1M-wiki-STEM
X-linked reticulate pigmentary disorder-Treatment-Management of other XLPDR symptoms is largely supportive. Conventional management of recurrent lung infections with antibiotics is essential; many patients receive inhaled prophylactic management akin to cystic fibrosis patients. Urethral strictures are treated with seq...
milkshake721/2.1M-wiki-STEM
X-linked reticulate pigmentary disorder-Treatment-Recently, a number of reports suggest encouraging results with the use of JAK inhibitors baricitinib and ruxolitinib in several distinct type I interferonopathies. In fact, one XLPDR patient with refractory colitis was treated with tofacitinib with positive response of ...
milkshake721/2.1M-wiki-STEM
Partition-Saving-Partition-Saving-Partition-Saving is a disk imaging utility for Linux, Windows and DOS environments that can save disk partitions in one of the several supported disk image formats. This utility was originally called Savepart but was renamed to avoid conflict with a similarly named OS/2 utility.
milkshake721/2.1M-wiki-STEM
Partition-Saving-Common uses-Some common uses for Partition-Saving are as follows: Backup of individual disk partitions. Volume backups are very useful for recovery in the case of a disk failure or data corruption Correction of boot parameters as boot sector content or Windows boot configuration
milkshake721/2.1M-wiki-STEM
Partition-Saving-Features-Partition-Saving has following features: Backup of any partition types (sector by sector) Backup of FAT12, FAT16, FAT32, Ext2, Ext3, Ext4 (not all options), NTFS partitions with only occupied sectors (not a file by file backup, but similar in size with keeping disk organization) Backup of Mast...
milkshake721/2.1M-wiki-STEM
Partition-Saving-Limitations-Partition-Saving has following limitations: Backup of a running OS is not possible (less for DOS): that means it needs to boot from another OS or from a Live CD (a FreeDOS one is provided) to backup Linux or Windows system partition When a full backup is performed, restoration can only be d...
milkshake721/2.1M-wiki-STEM
Name calling-Name calling-Name-calling is a form of argument in which insulting or demeaning labels are directed at an individual or group. This phenomenon is studied by a variety of academic disciplines such as anthropology, child psychology, and political science. It is also studied by rhetoricians, and a variety of ...
milkshake721/2.1M-wiki-STEM
Name calling-In politics and public opinion-Politicians sometimes resort to name-calling during political campaigns or public events with the intentions of gaining advantage over, or defending themselves from, an opponent or critic. Often such name-calling takes the form of labelling an opponent as an unreliable and un...
milkshake721/2.1M-wiki-STEM
Name calling-Common misconceptions-Gratuitous verbal abuse or "name-calling" is not on its own an example of the abusive argumentum ad hominem logical fallacy. The fallacy occurs only if personal attacks are employed to devalue a speaker's argument by attacking the speaker; personal insults in the middle of an otherwis...
milkshake721/2.1M-wiki-STEM
Fire cut-Fire cut-In the construction of masonry buildings, a fire cut or fireman's cut is a diagonal chamfer of the end of a joist or beam where it enters a masonry wall. If the joist burns through somewhere along its length, damage to the wall is prevented as the fire cut allows the joist to fail and still leave the ...
milkshake721/2.1M-wiki-STEM
Fire cut-Fire cut-Without firecut joists, if the burnt joists fail and rotate the unchamferred ends of the joists as they deflect downwards, this would damage the masonry wall at the connection point and possibly pull the wall inwards.
milkshake721/2.1M-wiki-STEM
Octatetraene-Octatetraene-In organic chemistry, octatetraene is a linear hydrocarbon consisting of a chain of eight carbon atoms linked by an alternating double-bond/single-bond pattern. The central two of the four alkene units can exhibit cis–trans isomerism, resulting in three isomers.
milkshake721/2.1M-wiki-STEM
Octatetraene-Octatetraene-The compounds are not in general of much commercial significance, but the octatetraene group has been studied in contexts in the physical chemistry of bonds, some aspect of which have relevance to cell membranes and some to the retinal chemistry of vision. The high degrees of symmetries and co...
milkshake721/2.1M-wiki-STEM
Trustworthy Software Foundation-Trustworthy Software Foundation-The Trustworthy Software Foundation (TSFdn) is a UK not-for-profit organisation, with stated aim of improving software.
milkshake721/2.1M-wiki-STEM
Trustworthy Software Foundation-History-TSFdn evolved from a number of previous activities: A study by the Cabinet Office, Central Sponsor for Information Assurance (CSIA) in 2004-5 which identified a pervasive lack of secure software development practices as a matter for concern A Department of Trade and Industry (DTI...
milkshake721/2.1M-wiki-STEM
Trustworthy Software Foundation-Objectives-TSFdn primarily aims to provide a living backbone for signposting to diverse but often obscure sources of Good Practice, with a secondary objective to address other aspects of the 2009 Trustworthy Software Roadmap.
milkshake721/2.1M-wiki-STEM
Trustworthy Software Foundation-Trustworthiness-TSI considers that there are five facets of trustworthiness: Safety - The ability of the system to operate without harmful states Reliability - The ability of the system to deliver services as specified Availability - The ability of the system to deliver services when req...
milkshake721/2.1M-wiki-STEM
Trustworthy Software Foundation-Governance and Operation-TSFdn operates as a not-for-profit Company Limited by Guarantee, jointly owned by the subscriber organisations – UK professional bodies.It is based at the Cyber Security Centre of the University of Warwick, and is formally linked to a cross section of stakeholder...
milkshake721/2.1M-wiki-STEM
Trustworthy Software Foundation-Activities-Updating its Trustworthy Software Framework (TSFr), originally published as British Standards (BS) Publicly Available Specification (PAS) 754, into a British Standard (through BSI Project Committee ICT/00-/09, Chaired by Ian Bryant) Continuing to engage with partners for promu...
milkshake721/2.1M-wiki-STEM
EuFOD-EuFOD-EuFOD is the chemical compound with the formula Eu(OCC(CH3)3CHCOC3F7)3, also called Eu(fod)3. This coordination compound is used primarily as a shift reagent in NMR spectroscopy. It is the premier member of the lanthanide shift reagents and was popular in the 1970s and 1980s.
milkshake721/2.1M-wiki-STEM
EuFOD-Structure and reactivity-Eu(fod)3 consists of three bidentate ligands bound to a Eu(III) center. The metal atom has an electron configuration of f6. The six electrons are unpaired—each in a different singly-occupied f-orbital—which makes the molecule highly paramagnetic. In contrast, Gd(fod)3 with a symmetrical f...
milkshake721/2.1M-wiki-STEM
EuFOD-Uses-NMR shift reagent In its original application, Eu(fod)3 was used in NMR spectroscopy to gain additional chemical shift dispersion. As is typical in paramagnetic NMR spectroscopy, the paramagnetic compound induces an additional chemical shift in the protons near those Lewis basic sites that bind to Eu(fod)3. ...
milkshake721/2.1M-wiki-STEM
EuFOD-Uses-The original shift reagent was Eu(DPM)3, also called Eu(thd)3. Its structure is similar to EuFOD, but with tert-butyl groups in place of heptafluoropropyl substituents. That is, DPM− is the conjugate base derived from dipivaloylmethane, also known as 2,2,6,6-tetramethylheptane-3,5-dione. The ligand fod− is m...
milkshake721/2.1M-wiki-STEM
EuFOD-Uses-Lewis acid Eu(fod)3 serves as a Lewis acid catalyst in organic synthesis including stereoselective Diels-Alder and aldol addition reactions. For example, Eu(fod)3 catalyzes the cyclocondensations of substituted dienes with aromatic and aliphatic aldehydes to yield dihydropyrans, with high selectivity for the...
milkshake721/2.1M-wiki-STEM
Nanodumbbell-Nanodumbbell-A nanodumbell is a pair of spheres attached together that may be made of silica or zinc oxide.They have been used in a Purdue University experiment where they were made to spin in a vacuum at 60 billion rotations per minute.
milkshake721/2.1M-wiki-STEM
Nanodumbbell-Description-The nanodumbbells are first created in the lab using a hydro-thermal process. The resulting dumbbell consists of two joined silica spheres, making it 320 nanometers long and around 170 nanometers wide in size.Nanodumbbells are also being studied for possible use in photodynamic therapy, a way o...
milkshake721/2.1M-wiki-STEM
Nanodumbbell-Experiment-Highly focused circularly polarized light laser light bombards the levitated dumbbell to set it spinning.
milkshake721/2.1M-wiki-STEM
Nanodumbbell-Previous records-The speed of the rotation is a world record that beats previous records. In 2008, a small motor rotated at 1 million rotations per minute. In 2010, a slice of graphene was made to spin at 60 million spins per minute. Around 2013, a sphere measuring just 4 micrometers was spun at 600 millio...
milkshake721/2.1M-wiki-STEM
Motorola Homesight-Motorola Homesight-Motorola Homesight is a brand name for a range of home security and automation products marketed in the U.S. and UK, which include separate items and a product package. The latter is marketed and sold as a kit and the product range offers flexibility in choice of accessories with w...
milkshake721/2.1M-wiki-STEM
Motorola Homesight-Description-As per Motorola's marketing material, the system uses a broadband Internet connection in order for the customer to stay connected to their home and its other residents through the kit owner's computer or compatible mobile phone. Sensor-detected activities are alerted and/or notified of to...
milkshake721/2.1M-wiki-STEM
Motorola Homesight-Technical disadvantages-Although the XG1000 gateway does NOT require a host PC (the system needs a PC only to be configured, not for normal steady state operations), the less expensive USB gateway system requires that its user's computer be turned on all the time, but such an always-on requirement is...
milkshake721/2.1M-wiki-STEM
Motorola Homesight-Technical disadvantages-OS compatibility The Homesight Wireless Easy Start Kit (HMEZ2000 and similar) software does not run on any variety of Macintosh or Linux/UNIX OS. Feedback received from both Motorola and the UK distributor (myhome247) is that there are no plans to provide a driver for Macintos...
milkshake721/2.1M-wiki-STEM
Motorola Homesight-Homesight Remote-Homesight Remote is a FOSS-licensed web interface to Homesight and is hosted at SourceForge. Information about its licensing is conflicting, as the home page for the project links to LGPL, while the project page shows GPL as its license. The Homesight Remote interface only runs on Wi...
milkshake721/2.1M-wiki-STEM
Motorola Homesight-Competing systems-AT&T Remote Monitor — Similar packaging and marketing as Motorola Homesight (through Xanboo), but controller and camera (Panasonic BL-C10) are different. The controller and camera can connect directly to a home network router (which in most cases can then be accessed through the Int...
milkshake721/2.1M-wiki-STEM
Motorola Homesight-Competing systems-Home Heartbeat INSTEON and Smarthome of SmartLabs Inc. Z-Wave
milkshake721/2.1M-wiki-STEM
Parthenocissus laetevirens-Parthenocissus laetevirens-Parthenocissus laetevirens is a climbing plant species in the genus Parthenocissus found in China. Parthenocissus laetevirens contains the stilbene oligomers laetevirenol A, B, C, D and E, the stilbene tetramers laetevirenol F and G as well as the dimers of resverat...
milkshake721/2.1M-wiki-STEM
India-based Neutrino Observatory-India-based Neutrino Observatory-India-based Neutrino Observatory (INO) is a particle physics research project under construction to primarily study atmospheric neutrinos in a 1,200 meters (3,900 ft) deep cave under INO Peak near Theni, Tamil Nadu, India. This project is notable in that...
milkshake721/2.1M-wiki-STEM
India-based Neutrino Observatory-Iron Calorimeter (ICAL) Detector-The main experiment proposed at INO is the Iron-Calorimeter Detector which aims to probe the Earth matter effects on the propagation of atmospheric neutrinos and to determine neutrino oscillation parameters in the 2-3 oscillation sector. ICAL will be a 5...
milkshake721/2.1M-wiki-STEM
India-based Neutrino Observatory-Iron Calorimeter (ICAL) Detector-The ICAL design is mostly based on the Monolith detector [1]. ICAL detector will have three modules, each module will have 151 layers of iron and 150 layers of RPCs, stacked one over the other. The dimension of the entire detector will be 48 m X 16 m X ...
milkshake721/2.1M-wiki-STEM
India-based Neutrino Observatory-Iron Calorimeter (ICAL) Detector-The location of INO has attracted a lot of attention from the neutrino physics community as the distance between INO and CERN is very close to "magic baseline" – a distance at which the effect of the CP phase on the measurement of 13 is minimal. But the...
milkshake721/2.1M-wiki-STEM
India-based Neutrino Observatory-Iron Calorimeter (ICAL) Detector-The primary goals of the ICAL are the following: Unambiguous and precise determination of neutrino oscillation parameters using atmospheric neutrinos. Study of matter effects through electric charge identification, that may lead to the determination of t...
milkshake721/2.1M-wiki-STEM
India-based Neutrino Observatory-Iron Calorimeter (ICAL) Detector-In 2008, INO started a graduate training programme leading to PhD degree in high energy physics to provide expert training to students in the areas of detector building and neutrino physics.A prototype called mini-ICAL, with 1/600 of the weight of ICAL, ...
milkshake721/2.1M-wiki-STEM
India-based Neutrino Observatory-Participating institutes-A memorandum of understanding (MoU) spelling out the operational aspects of the project and the mode of utilisation of available funds was signed by seven primary project partners: Tata Institute of Fundamental Research (TIFR), Mumbai, Bhabha Atomic Research Cen...
milkshake721/2.1M-wiki-STEM
India-based Neutrino Observatory-History and recent developments in the project-The possibility of a neutrino observatory located in India was discussed as early as 1989 during several meetings held that year. The issue was raised again in the first meeting of the neutrino physics and cosmology working group during the...
milkshake721/2.1M-wiki-STEM
India-based Neutrino Observatory-History and recent developments in the project-Further discussions took place in August 2000 during a meeting on Neutrino Physics at the Saha Institute of Nuclear Physics, Kolkata, when a small group of neutrino physics enthusiasts started discussing the possibilities. The Neutrino 2001...
milkshake721/2.1M-wiki-STEM
India-based Neutrino Observatory-History and recent developments in the project-In 2002, a document was presented to the Department of Atomic Energy, (DAE) which laid out an ambitious goal of establishing an India-based Neutrino Observatory, outlining the physics goals, possible choices for the detector and their physi...
milkshake721/2.1M-wiki-STEM
India-based Neutrino Observatory-History and recent developments in the project-As a result of the support received from various research institutes, universities, the scientific community and the funding agency, the Department of Atomic Energy, a Neutrino Collaboration Group (NCG) was established to study the possibil...
milkshake721/2.1M-wiki-STEM
India-based Neutrino Observatory-History and recent developments in the project-Instead, he suggested an alternate site near Suruli Falls, Theni District in Tamil Nadu. The Minister said this site did not pose the same problems that Singara posed and environmental and forest clearances should not be a serious issue. He...
milkshake721/2.1M-wiki-STEM
India-based Neutrino Observatory-History and recent developments in the project-Dr. Naba K Mondal of the Tata Institute of Fundamental Research, who is the spokesperson for the INO project said: "But Suruliyar too is in a reserved forest area that is dense and would require cutting down of trees, something that was no...
milkshake721/2.1M-wiki-STEM
India-based Neutrino Observatory-History and recent developments in the project-As of February 2012, the land was allocated to the INO collaboration by the government of Tamil Nadu and the excavation work was about to start. Naba K Mondal, chief spokesperson of INO project and a senior scientist at the Tata Institute o...
milkshake721/2.1M-wiki-STEM
India-based Neutrino Observatory-History and recent developments in the project-On 5 January 2015, Union Cabinet headed by Prime Minister Narendra Modi approved to set up the India-based Neutrino Observatory (INO).On 20 February 2015, The southern bench of National Green Tribunal ordered notices to the central and stat...
milkshake721/2.1M-wiki-STEM
Double hull-Double hull-A double hull is a ship hull design and construction method where the bottom and sides of the ship have two complete layers of watertight hull surface: one outer layer forming the normal hull of the ship, and a second inner hull which is some distance inboard, typically by a few feet, which form...
milkshake721/2.1M-wiki-STEM
Double hull-Double hull-The space between the two hulls is sometimes used for storage of ballast water.
milkshake721/2.1M-wiki-STEM
Double hull-Double hull-Double hulls are a more extensive safety measure than double bottoms, which have two hull layers only in the bottom of the ship but not the sides. In low-energy collisions, double hulls can prevent flooding beyond the penetrated compartment. In high-energy collisions, however, the distance to th...
milkshake721/2.1M-wiki-STEM
Double hull-Double hull-Double hulls or double bottoms have been required in all passenger ships for decades as part of the Safety Of Life At Sea or SOLAS Convention.
milkshake721/2.1M-wiki-STEM
Double hull-Uses-Double hulls are significantly safer than double bottoms, which in turn are safer than single bottoms. In case of grounding or other underwater damage, most of the time the damage is limited to flooding the bottom compartment, and the main occupied areas of the ship remain intact. In low-energy collis...
milkshake721/2.1M-wiki-STEM
Double hull-Uses-A double bottom or hull also conveniently forms a stiff and strong girder or beam structure with the two hull plating layers as upper and lower plates for a composite beam. This greatly strengthens the hull in secondary hull bending and strength, and to some degree in primary hull bending and strength....
milkshake721/2.1M-wiki-STEM
Double hull-Oil tankers-Double hulls' ability to prevent or reduce oil spills led to double hulls being standardized for other types of ships including oil tankers by the International Convention for the Prevention of Pollution from Ships or MARPOL Convention. A double hull does not protect against major, high-energy c...
milkshake721/2.1M-wiki-STEM
Double hull-Submarines-In submarine hulls, the double hull structure is significantly different, consisting of an outer light hull and inner pressure hull, with the outer hull intended more to provide a hydrodynamic shape for the submarine than the cylindrical inner pressure hull. In addition to tailoring the flow of w...
milkshake721/2.1M-wiki-STEM
Rasmus Pagh-Rasmus Pagh-Rasmus Pagh is a Danish computer scientist and a professor of computer science at the University of Copenhagen. His main work is in algorithms and data structures, and he is particularly known for the cuckoo hashing algorithm and for co-founding the Basic Algorithms Research Center, BARC, in Cop...
milkshake721/2.1M-wiki-STEM
Rasmus Pagh-Early life and education-Rasmus Pagh was born in Copenhagen, but soon after his family moved to Esbjerg in western Denmark. He went to high school at Rødkilde Amtsgymnasium where he participated in the "JP Forsker" science competition, and in the "Georg Mohr" mathematics competition. After graduating in 199...
milkshake721/2.1M-wiki-STEM
Rasmus Pagh-Career-In 2007, Rasmus founded the Scalable Query Evaluation for Reliable Databases (SQERD) project. The project aimed at applying modern algorithmic techniques to problems arising in database management systems in connection with the evaluation of queries. From 2011-2015, he ran the MaDaMS project, which ...
milkshake721/2.1M-wiki-STEM
Rasmus Pagh-Career-In 2014, he received an ERC Consolidator Grant for a project on Scalable Similarity Search. The project resulted in many new algorithms, including a way to prevent false negatives in high dimensional search. In 2017 Pagh co-founded the Basic Algorithms Research Center, BARC, in Copenhagen with Mikkel...
milkshake721/2.1M-wiki-STEM
Shoulder pad (sport)-Shoulder pad (sport)-Shoulder pads are a piece of protective equipment used in many contact sports such as gridiron football, lacrosse, and ice hockey and some non-contact sports such as ringette. Most modern shoulder pads consist of a shock absorbing foam material with a hard plastic outer coverin...
milkshake721/2.1M-wiki-STEM
Shoulder pad (sport)-History-The first football shoulder pads were created by Princeton University student L.P. Smock in 1877. These were made of leather and wool and were thin, light, and did not provide much protection. In the early years of the 1900s decade, many young football players were killed while playing the ...
milkshake721/2.1M-wiki-STEM
Console television-Console television-A console television is a type of CRT television most popular in, but not exclusive to, the United States and Canada. Console CRT televisions are distinguished from standard CRT televisions by their factory-built, non-removable, wooden cabinets and speakers, which form an integral ...
milkshake721/2.1M-wiki-STEM
Console television-Description-Console televisions were originally accommodated in approximately rectangular radiogram style cabinets and included radio and record player facilities. However, from approximately the mid-1970s onwards, as radiograms decreased and Hi-fi equipment increased in popularity, console televisio...
milkshake721/2.1M-wiki-STEM
Console television-Manufacturers-Companies that made these types of television included Zenith, RCA, Panasonic, Sony, Magnavox, Mitsubishi, Sylvania, and Quasar.
milkshake721/2.1M-wiki-STEM
Place and route-Place and route-Place and route is a stage in the design of printed circuit boards, integrated circuits, and field-programmable gate arrays. As implied by the name, it is composed of two steps, placement and routing. The first step, placement, involves deciding where to place all electronic components, ...
milkshake721/2.1M-wiki-STEM
Place and route-Place and route-Place and route is used in several contexts: Printed circuit boards, during which components are graphically placed on the board and the wires drawn between them Integrated circuits, during which a layout of a larger block of the circuit or the whole circuit is created from layouts of sm...
milkshake721/2.1M-wiki-STEM
Place and route-Place and route-In all these contexts, the final result when placing and routing is finished is the "layout", a geometric description of the location and rotation of each part, and the exact path of each wire connecting them. Occasionally some people call the entire place-and-route process "layout".
milkshake721/2.1M-wiki-STEM
Place and route-Printed circuit board-The design of a printed circuit board comes after the creation of a schematic and generation of a netlist. The generated netlist is then read into a layout tool and associated with the footprints of the devices from a library. Placing and routing the devices can now start.Placing a...
milkshake721/2.1M-wiki-STEM
Place and route-Field-programmable gate array-The process of placing and routing for an FPGA is generally not performed by a person, but uses a tool provided by the FPGA Vendor or another software manufacturer. The need for software tools is because of the complexity of the circuitry within the FPGA and the function th...
milkshake721/2.1M-wiki-STEM
Place and route-Integrated circuits-The IC place-and-route stage typically starts with one or more schematics, HDL files, or pre-routed IP cores, or some combination of all three. It produces an IC layout that is automatically converted to a mask work in the standard GDS II or the OASIS format.
milkshake721/2.1M-wiki-STEM
Place and route-History-The final layout of early ICs and PCBs was stored as a tape-out of Rubylith on transparent film.
milkshake721/2.1M-wiki-STEM
Place and route-History-Gradually, electronic design automation automated more and more of the place-and-route work. At first, it merely sped up the process of making many small edits without spending a lot of time peeling up and sticking down the tape. Later design rule checking sped up the process of checking for the...
milkshake721/2.1M-wiki-STEM
Place and route-History-Some people hope that further improvements in autoplacers and autorouters will eventually produce good layouts without any human manual intervention. Further automation leads to the idea of a silicon compiler.
milkshake721/2.1M-wiki-STEM
Sex cords-Sex cords-In embryogenesis, the sex cords (primitive sex cords, primitive seminiferous cords, or gonadal cords) are structures that develop from the genital ridges that further differentiate based on an embryo's sex. After sexual differentiation, at day 49, the sex cords in females become the cortical cords, ...
milkshake721/2.1M-wiki-STEM
Value object-Value object-In computer science, a value object is a small object that represents a simple entity whose equality is not based on identity: i.e. two value objects are equal when they have the same value, not necessarily being the same object.Examples of value objects are objects representing an amount of m...
milkshake721/2.1M-wiki-STEM
Value object-Value object-Being small, one can have multiple copies of the same value object that represent the same entity: it is often simpler to create a new object rather than rely on a single instance and use references to it.Value objects should be immutable: this is required for the implicit contract that two va...
milkshake721/2.1M-wiki-STEM
Value object-Implementation-Due to the nuances of various object-oriented programming languages, each has its own methods and patterns for implementing and using value objects.
milkshake721/2.1M-wiki-STEM
Value object-Implementation-C# In C#, a class is a reference type while a struct (concept derived from the struct in C language) is a value type. Hence an instance derived from a class definition is an object while an instance derived from a struct definition is said to be a value object (to be precise a struct can be...
milkshake721/2.1M-wiki-STEM
Value object-Implementation-The following procedure can be carried out to add value object properties to a C# class: Override the Object.Equals method to ensure the object is compared using business logic Operator overload the default behavior of == and != to use the Equals method. Override the Object.GetHashCode metho...
milkshake721/2.1M-wiki-STEM
Value object-Implementation-Java Unlike C# and C++, Java has no support for custom value types at the language level. Every custom type is a reference type, and therefore has identity and reference semantics, though extending support for custom value types is being considered.Java programmers therefore emulate value ob...
milkshake721/2.1M-wiki-STEM
Value object-Implementation-A class can be made immutable by declaring all attributes blank final, and declaring all attributes to be of immutable type (such as String, Integer, or any other type declared in accordance with these rules), not of mutable type such an ArrayList or even a Date. They should also define equa...
milkshake721/2.1M-wiki-STEM
Truck driver-Truck driver-A truck driver (commonly referred to as a trucker, teamster or driver in the United States and Canada; a truckie in Australia and New Zealand; a HGV driver in the United Kingdom, Ireland and the European Union, a lorry driver, or driver in the United Kingdom, Ireland, India, Nepal, Pakistan, M...
milkshake721/2.1M-wiki-STEM
Truck driver-Duties and functions-Truck drivers provide an essential service to industrialized societies by transporting finished goods and raw materials over land, typically to and from manufacturing plants, retail, and distribution centers. Truck drivers are responsible for inspecting their vehicles for mechanical it...
milkshake721/2.1M-wiki-STEM
Truck driver-Types-There are three major types of truck driver employment: Owner-operators (also known as O/Os, or "doublestuffs") are individuals who own the trucks they drive and can either lease their trucks by contract with a trucking company to haul freight for that company using their own trucks or haul loads for...
milkshake721/2.1M-wiki-STEM
Truck driver-Types-Company drivers are employees of a particular trucking company who drive trucks provided by their employer. Independent owner-operators are those with the authority to haul goods who often drive their own trucks, possibly owning a small fleet anywhere from one to ten, but occasionally as few as two o...
milkshake721/2.1M-wiki-STEM
Truck driver-Job categories-Owner-operators, owner-drivers, and company drivers can be in these categories: Auto haulers transport cars on specially built trailers and require specific skills to load and operate specialized trailers.
milkshake721/2.1M-wiki-STEM
Truck driver-Job categories-Boat haulers move boats ranging in size from 10-foot-long (3.0 m) bass boats to full-size yachts up to 60 ft long (18 m) using specialized low boy trailers that can be set up for each size of boat. Boats wider than 8 feet 6 inches (2.59 m) or 13 feet 6 inches (4.11 m) require permits to move...
milkshake721/2.1M-wiki-STEM
Truck driver-Job categories-Dry van drivers haul the majority of goods over highways in large trailers. Contents may be perishable or nonperishable goods. Dry bulk pneumatic drivers haul bulk sand, salt, and cement, among other things. They have specialized trailers which enable them to use pressurized air to unload th...
milkshake721/2.1M-wiki-STEM
Truck driver-Job categories-Tanker drivers (tank truck drivers; in truck driver slang, tanker yankers "tankies") haul liquids, such as gasoline (petrol), diesel fuel, milk, and crude oil, and dry bulk materials, such as plastics, sugar, flour, and cement in tanks. Liquid tanker drivers need special driving skills due t...
milkshake721/2.1M-wiki-STEM