Wichtigste Übersetzungen. Englisch, Deutsch. hallmark nnoun: Refers to person, place, thing, quality, etc. (official stamp), Siegel NnNomen, sächlich, neutrum. Übersetzung für 'hallmark' im kostenlosen Englisch-Deutsch Wörterbuch von LANGENSCHEIDT – mit Beispielen, Synonymen und Aussprache. hallmark (Englisch). Wortart: Substantiv. Silbentrennung: hall|mark, Mehrzahl: hall|marks. Wortbedeutung/Definition: 1) Punze, Repunze: 2) Echtheitsstempel: 3).
"hallmarks" Deutsch ÜbersetzungÜbersetzung für 'hallmarks' im kostenlosen Englisch-Deutsch Wörterbuch und viele weitere Deutsch-Übersetzungen. Lernen Sie die Übersetzung für 'hallmarks' in LEOs Englisch ⇔ Deutsch Wörterbuch. Mit Flexionstabellen der verschiedenen Fälle und Zeiten ✓ Aussprache. Übersetzung im Kontext von „hallmarks“ in Englisch-Deutsch von Reverso Context: Placement of needles, cones, and their value are the hallmarks.
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With the introduction of Federal hallmarking laws starting in , increased uniformity was established.
Under the current law, on all gold, silver, platinum or palladium watches cases made in Switzerland or imported into Switzerland, there shall be affixed,  near the Maker's Responsibility Mark and his indication of purity, the official Hallmark, the head of a Saint Bernard dog.
Only precious metal watch cases must be hallmarked. Swiss hallmarking for other articles such as jewelry and cutlery is optional.
In addition to the Swiss hallmark, all precious metal goods may be stamped with the Common Control Mark of the Vienna Convention.
The Netherlands, who are members of the International hallmarking Convention, have been striking hallmarks since at least Like many other nations, the Netherlands require the registration and use of Responsibility Marks, however, perhaps somewhat unusual, there is a book published entitled "Netherlands' Responsibility Marks since " in three volumes and in the English language illustrating all the responsibility marks registered there since that time.
This is significant since producers that exported precious metal goods to the Netherlands would have been required to register their marks.
The Netherlands' hallmarks are also recognized in Belgium, Denmark, Finland and Sweden, which have voluntary hallmarking systems.
One of the two Dutch assay offices, WaarborgHolland b. The other one is located in Joure, called Edelmetaal Waarborg Nederland b.
The Netherlands recognises platinum, gold, silver and palladium as precious metals. Traditionally, the hallmarks are "struck" using steel punches.
Punches are made in different sizes, suitable for tiny pieces of jewelry to large silver platters.
Punches are made in straight shank or ring shank, the latter used to mark rings. The problem with traditional punching is that the process of punching displaces metal, causing some distortion of the article being marked.
This means that re-finishing of the article is required after hallmarking. For this reason, and that off-cuts from sprues are often used for assay, many articles are sent unfinished to the assay office for assay and hallmarking.
A new method of marking using lasers is now available, which is especially valuable for delicate items and hollowware , which would be damaged or distorted by the punching process.
Laser marking also means that finished articles do not need to be re-finished. Laser marking works by using high-power lasers to evaporate material from the metal surface.
Two methods exist: 2D and 3D laser marking. Precious metal items of art or jewelry are frequently hallmarked depending upon the requirements of the laws of either the place of manufacture or the place of import.
Where required to be hallmarked, semi-finished precious metal items of art or jewelry pass through the official testing channels where they are analyzed or assayed for precious metal content.
While different nations permit a variety of legally acceptable finenesses, the assayer is actually testing to determine that the fineness of the product conforms with the statement or claim of fineness that the maker has claimed usually by stamping a number such as for 18k gold on the item.
In the past the assay was conducted by using the touchstone method but currently most often it is done using X-ray Fluorescence XRF.
XRF is used because this method is more exacting than the touchstone test. The most exact method of assay is known as fire assay or cupellation.
This method is better suited for the assay of bullion and gold stocks rather than works or art or jewelry because it is a completely destructive method.
The age-old touchstone method is particularly suited to the testing of very valuable pieces, for which sampling by destructive means, such as scraping, cutting or drilling is unacceptable.
A rubbing of the item is made on a special stone, treated with acids and the resulting color compared to references. Differences in precious metal content as small as 10 to 20 parts per thousand can often be established with confidence by the test.
It is not indicated for use with white gold, for example, since the color variation among white gold alloys is almost imperceptible.
The modern X-ray fluorescence is also a non-destructive technique that is suitable for normal assaying requirements.
It typically has an accuracy of 2—5 parts per thousand and is well-suited to the relatively flat and large surfaces. It is a quick technique taking about three minutes, and the results can be automatically printed out by the computer.
It also measures the content of the other alloying metals present. It is not indicated, however, for articles with chemical surface treatment or electroplated metals.
The most elaborate, but totally destructive, assay method is the fire assay , or cupellation. As applied to gold bearing metallics, as in hallmark assaying, it is also known as cupellation and can have an accuracy of 1 part in 10, In this process the article is melted, the alloys separated and constituents weighed.
Since this method is totally destructive, when this method is employed for the assay of jewelry, it is done under the guise of random or selective sampling.
For example, if a single manufacturer deposits a lot of rings or watch cases, while most are assayed using the non-destructive methods a few pieces from the lot are randomly selected for fire assay.
There are methods of assay noted above which are more properly suited for finished goods while other methods are suitable for use on raw materials before artistic workmanship has begun.
Raw precious metals bullion or metal stock are assayed by the following methods: silver is assayed by titration , gold is assayed by cupellation and platinum is assayed by ICP OES spectrometry.
From Wikipedia, the free encyclopedia. Redirected from Hallmarks. For other uses, see Hallmark disambiguation. For the meanings of gold standard hallmarks, see Carat purity.
This section does not cite any sources. Please help improve this section by adding citations to reliable sources. Unsourced material may be challenged and removed.
December Learn how and when to remove this template message. The assay office marks — from left to right, the leopard 's head of London , the anchor of Birmingham , the Yorkshire rose of Sheffield , and the castle of Edinburgh.
The assay office marks are no longer an indicator that an item was assayed in the city, or in the UK. Examples of British hallmarks for silver. Nelson-Atkins Museum of Art.
Cites: Dodd, Erica Cruikshank Byzantine Silver Stamps. Dumbarton Oaks Studies. Kent excursus on the comes sacrarum largitionum.
Compare : Dubler, Anne-Marie 27 November Historisches Lexikon der Schweiz in German. Retrieved 2 October Retrieved Johnson Matthey Technology Review.
Geneva: A. Kunz, George F. April The American Historical Review. December In cancer, these tumour suppressor proteins are altered so that they don't effectively prevent cell division, even when the cell has severe abnormalities.
Another way cells prevent over-division is that normal cells will also stop dividing when the cells fill up the space they are in and touch other cells; known as contact inhibition.
Cancer cells do not have contact inhibition, and so will continue to grow and divide, regardless of their surroundings.
Cells have the ability to 'self-destruct'; a process known as apoptosis. This is required for organisms to grow and develop properly, for maintaining tissues of the body, and is also initiated when a cell is damaged or infected.
Cancer cells, however, lose this ability; even though cells may become grossly abnormal, they do not undergo apoptosis. The cancer cells may do this by altering the mechanisms that detect the damage or abnormalities.
This means that proper signaling cannot occur, thus apoptosis cannot activate. They may also have defects in the downstream signaling itself, or the proteins involved in apoptosis, each of which will also prevent proper apoptosis.
Cells of the body don't normally have the ability to divide indefinitely. They have a limited number of divisions before the cells become unable to divide senescence , or die crisis.
The cause of these barriers is primarily due to the DNA at the end of chromosomes, known as telomeres.
Telomeric DNA shortens with every cell division, until it becomes so short it activates senescence, so the cell stops dividing.
Cancer cells bypass this barrier by manipulating enzymes telomerase to increase the length of telomeres.
Thus, they can divide indefinitely, without initiating senescence. Mammalian cells have an intrinsic program, the Hayflick limit , that limits their multiplication to about 60—70 doublings, at which point they reach a stage of senescence.
Most tumor cells are immortalized. The counting device for cell doublings is the telomere, which decreases in size loses nucleotides at the ends of chromosomes during each cell cycle.
Normal tissues of the body have blood vessels running through them that deliver oxygen from the lungs. Cells must be close to the blood vessels to get enough oxygen for them to survive.
New blood vessels are formed during the development of embryos, during wound repair and during the female reproductive cycle. An expanding tumour requires new blood vessels to deliver adequate oxygen to the cancer cells, and thus exploits these normal physiological processes for its benefit.
To do this, the cancer cells acquire the ability to orchestrate production of new vasculature by activating the 'angiogenic switch'.
In doing so, they control non-cancerous cells that are present in the tumor that can form blood vessels by reducing the production of factors that inhibit blood vessel production, and increasing the production of factors that promote blood vessel formation.
One of the most well known properties of cancer cells is their ability to invade neighboring tissues. It is what dictates whether the tumor is benign or malignant, and is the property which enables their dissemination around the body.
The cancer cells have to undergo a multitude of changes in order for them to acquire the ability to metastasize, in a multistep process that starts with local invasion of the cells into the surrounding tissues.
They then have to invade blood vessels, survive in the harsh environment of the circulatory system, exit this system and then start dividing in the new tissue.
In his NCRI conference talk, Hanahan proposed two new emerging hallmarks and two emerging characteristics. These were later codified in an updated review article entitled "Hallmarks of cancer: the next generation.
Most cancer cells use alternative metabolic pathways to generate energy, a fact appreciated since the early twentieth century with the postulation of the Warburg hypothesis ,   but only now gaining renewed research interest.
Instead of completely oxidizing glucose to produce as much ATP as possible, cancer cells would rather convert pyruvate into the building blocks for more cells.
Mitochondrial membrane potential is hyperpolarized to prevent voltage-sensitive permeability transition pores PTP from triggering of apoptosis.
The ketogenic diet is being investigated as an adjuvant therapy for some cancers,    including glioma,   because of cancer's inefficiency in metabolizing ketone bodies.
Despite cancer cells causing increased inflammation and angiogenesis, they also appear to be able to avoid interaction with the body's immune system via a loss of interleukin immune system.
See cancer immunology. The updated paper also identified two emerging characteristics. These are labeled as such since their acquisition leads to the development of the hypothesized "hallmarks".
Cancer cells generally have severe chromosomal abnormalities which worsen as the disease progresses. HeLa cells , for example, are extremely prolific and have tetraploidy 12, trisomy 6, 8, and 17, and a modal chromosome number of 82 rather than the normal diploid number of See genome instability.
Recent discoveries have highlighted the role of local chronic inflammation in inducing many types of cancer. Inflammation leads to angiogenesis and more of an immune response.
The degradation of extracellular matrix necessary to form new blood vessels increases the odds of metastasis. See inflammation in cancer. An article in Nature Reviews Cancer in pointed out that five of the 'hallmarks' were also characteristic of benign tumours.
An article in the Journal of Biosciences in argued that original data for most of these hallmarks is lacking. From Wikipedia, the free encyclopedia.
Science Daily. Retrieved 4 April Bibcode : Natur. Current Opinion in Cell Biology.These processes are orchestrated by proteins known as tumor suppressor genes. New blood vessels are formed during the development of embryos, during wound repair and during the female reproductive cycle. Download Spider Patience PDF Printable version. Only precious metal watch cases must be hallmarked. Inhis successor, Luca Brecel IV "the Fair" expanded the use of hallmarks to gold works. Kunz, George F. Le Noirmont. Retrieved 4 April Dfb Гјokal Collectors' Club. Similarly, with the consent of all the current member Pegasus Pdf, the terms of the convention may Casino Freispiele amended. Service Provider 2 There are 2 cards are available within the Any Man filter. Sister 24 There are 24 cards are available within the Any Man filter. Son-in-Law 1 There are 1 cards are Jungle Camp Sendung Verpasst within the Any Man filter. Funny Learn the translation for ‘hallmarks’ in LEO’s English ⇔ German dictionary. With noun/verb tables for the different cases and tenses links to audio pronunciation and relevant forum discussions free vocabulary trainer. Examples of Dutch Hallmarks Hallmarking A - Silver guild marks used in some 35 of the larger towns and cities of the Netherlands from the 15th through 18th Centuries, this system remained in use until the time of the French occupation (). Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Since Germany uses uniform marks for silver and gold. These marks are the "Crescent and crown" (Halbmond und Reichskrone) for silver and the "Sun and Crown" (Sonne und Reichskrone) for gold. In addition the fine content and maker's marks are used. Minimum silver fineness is /, but , , , and purities are also used. In a law was enacted making the minimum national standard for silver in Germany. In the use of individual city marks was abolished and replaced by the national mark (reichsmark) of a crescent moon & crown mark (Halbmond und Krone) representing the entire German state. Viele übersetzte Beispielsätze mit "hallmark" – Deutsch-Englisch Wörterbuch und Suchmaschine für Millionen von Deutsch-Übersetzungen. Englisch-Deutsch-Übersetzungen für hallmark im Online-Wörterbuch ourcatholicway.com (Deutschwörterbuch). Übersetzung Englisch-Deutsch für hallmark im PONS Online-Wörterbuch nachschlagen! Gratis Vokabeltrainer, Verbtabellen, Aussprachefunktion. Lernen Sie die Übersetzung für 'hallmarks' in LEOs Englisch ⇔ Deutsch Wörterbuch. Mit Flexionstabellen der verschiedenen Fälle und Zeiten ✓ Aussprache.