Zwilling J. A. Henckels AG is a German knife-maker based in Solingen , Germany. It is one of the largest and oldest manufacturers of kitchen knives for domestic and professional use, having been founded in June 1731 by Peter Henckels. It is also one of the oldest operating companies in the world . The brand's namesake was Johann Abraham Henckels (1771–1850), who renamed the brand after himself under his leadership. J. A. Henckels is one of the leading manufacturers of chef's knives. Since 1970, Zwilling is fully owned by Werhahn KG. The following brands belong to the Zwilling Group: ZWILLING, HENCKELS, Miyabi, BSF, Demeyere, Staub, Fontignac, Ballarini, Flammkraft, and Santos Grills.
75-409: "Zwilling" (German for ' twin ') was founded on 13 June 1731 by the German knife-maker Peter Henckels. The logo was registered with the Cutlers ' Guild of Solingen , making Zwilling one of the earliest examples of a trademarked company. In 1771, Peter's son Johann Abraham Henckels (1771–1850) – the later namesake of the company – was born. The Henckels logo has been in
150-497: A greater chance of dizygotic multiple births. In the United States it has been estimated that by 2011 36% of twin births resulted from conception by assisted reproductive technology . The risk of twin birth can vary depending on what types of fertility treatments are used. With in vitro fertilisation (IVF), this is primarily due to the insertion of multiple embryos into the uterus. Ovarian hyperstimulation without IVF has
225-506: A more likely explanation. A high twinning rate has also been observed in other places of the world, including: The widespread use of fertility drugs causing hyperovulation (stimulated release of multiple eggs by the mother) has caused what some call an "epidemic of multiple births ". In 2001, for the first time ever in the US , the twinning rate exceeded 3% of all births. Nevertheless, the rate of monozygotic twins remains at about 1 in 333 across
300-460: A pair of monozygotic twins reproduces with another pair or with the same person), rather than first cousins. Identical twins do not have the same fingerprints however, because even within the confines of the womb, the fetuses touch different parts of their environment, giving rise to small variations in their corresponding prints and thus making them unique. Monozygotic twins always have the same genotype . Normally due to an environmental factor or
375-497: A partnership allowing some products constructed using a microcarbide powder steel with clad layers, which are manufactured in Japan. In 2011 Zwilling partnered with Master Bladesmith and designer Bob Kramer to launch a series of co-branded knives, starting with a carbon steel line. Henckels knives are manufactured in several ways. A large selection of the knife range are forged from a single piece of high-carbon stainless steel, which
450-493: A rate of about 3 in every 1000 deliveries worldwide. The likelihood of a single fertilization resulting in monozygotic twins is uniformly distributed in all populations around the world. This is in marked contrast to dizygotic twinning, which ranges from about six per thousand births in Japan (almost similar to the rate of identical twins, which is around 4–5) to 15 and more per thousand in some parts of India and up to over 20 in some Central African countries. The exact cause for
525-406: A separate fetus, rather than by the embryo splitting while hatching from the zona pellucida (the gelatinous protective coating around the blastocyst). Monozygotic twins may also be created artificially by embryo splitting. It can be used as an expansion of in vitro fertilization (IVF) to increase the number of available embryos for embryo transfer . Monozygotic twinning occurs in birthing at
600-565: A series of new Mabuse films, which were produced by Brauner (including the remake of The Testament of Dr. Mabuse ), though Lang did not direct any of the sequels. Lang was approaching blindness during the production, and it was his final project as director. In 1963, he appeared as himself in Jean-Luc Godard 's film Contempt . On February 8, 1960, Lang received a star on the Hollywood Walk of Fame for his contributions to
675-541: A study in 2012 found that it is possible for a polar body to result in a healthy fetus. In 2003, a study argued that many cases of triploidy arise from sesquizygotic (semi-identical) twinning which happens when a single egg is fertilized by two sperm and splits the three sets of chromosomes into two separate cell sets. The degree of separation of the twins in utero depends on if and when they split into two zygotes. Dizygotic twins were always two zygotes. Monozygotic twins split into two zygotes at some time very early in
750-577: A version of Ferenc Molnár 's Liliom , starring Charles Boyer . That was Lang's only film in French (excluding the French version of Testament ). He then moved to the United States. Lang made twenty-two features in his 20-year American career, working in a variety of genres at every major studio in Hollywood , and occasionally producing his films as an independent. He became a naturalized citizen of
825-478: A very high risk of multiple birth. Reversal of anovulation with clomifene (trade names including Clomid ) has a relatively less but yet significant risk of multiple pregnancy. A 15-year German study of 8,220 vaginally delivered twins (that is, 4,110 pregnancies) in Hesse yielded a mean delivery time interval of 13.5 minutes. The delivery interval between the twins was measured as follows: The study stated that
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#1732787544918900-557: Is a genetically linked tendency to hyper- ovulate . There is no known genetic link for identical twinning. Other factors that increase the odds of having fraternal twins include maternal age, fertility drugs and other fertility treatments, nutrition, and prior births. Some women intentionally turn to fertility drugs in order to conceive twins. The vast majority of twins are either dizygotic (fraternal) or monozygotic (identical). In humans dizygotic twins occur more often than monozygotic twins. Less common variants are discussed further down
975-574: Is available in English, Dutch, and French. Twin Twins are two offspring produced by the same pregnancy . Twins can be either monozygotic ('identical'), meaning that they develop from one zygote , which splits and forms two embryos , or dizygotic ('non-identical' or 'fraternal'), meaning that each twin develops from a separate egg and each egg is fertilized by its own sperm cell. Since identical twins develop from one zygote, they will share
1050-767: Is cold-hardened to improve stain resistance. This hardening process consists of cryogenic tempering and involves immersing the finished knife blades in liquid nitrogen. This process is required to get full hardness from most stainless knife steels, as it completes the conversion of austenite to martensite . The process of forging is intended to produce improved cutting-edge retention, weight, balance, and reduced opportunity for metal fatigue. Most of Zwilling's higher end knives are manufactured in Solingen, Germany , while others, including Henckels branded knives are made in Spain and China. In 1909 Henckels set up its first subsidiary in
1125-482: Is considered a central film in the genre. One of Lang's most praised films noir is the police drama The Big Heat (1953), known for its uncompromising brutality, especially for a scene in which Lee Marvin throws scalding coffee on Gloria Grahame 's face. As Lang's visual style simplified, in part due to the constraints of the Hollywood studio system, his worldview became increasingly pessimistic, culminating in
1200-490: Is credited with launching or developing many different genres of film. Philip French of The Observer believed that Lang helped craft the "entertainment war flick" and that his interpretation of the story of Bonnie and Clyde "helped launch the Hollywood film noir". Geoff Andrew of the British Film Institute believed he set the "blueprint for the serial killer movie" through M . In December 2021, Lang
1275-446: Is fertilized to form one zygote (hence, "monozygotic") which then divides into two separate embryos . The chances of having identical twins is relatively rare – around 3 or 4 in every 1,000 births. Regarding spontaneous or natural monozygotic twinning, a 2007 theory related to in vitro fertilization (IVF) proposes that monozygotic twins may be formed when a blastocyst contains two inner cell masses (ICM), each of which will lead to
1350-421: Is hunted down and brought to rough justice by Berlin's criminal underworld. M remains a powerful work; it was remade in 1951 by Joseph Losey , but this version had little impact on audiences, and has become harder to see than the original film. During the climactic final scene in M , Lang allegedly threw Peter Lorre down a flight of stairs in order to give more authenticity to Lorre's battered look. Lang, who
1425-523: Is operated independently from Zwilling. Since 1988, J. A. Henckels has partnered with Solingen-based professional hairdressing equipment manufacturer Jaguar, which became part of the Zwilling group in 2004 to make product for the hairdressing industry, also owning a selection of hairdressing equipment brands. With the 2008 acquisitions of the Belgian manufacturer Demeyere ( stainless steel cookware) and
1500-419: Is the most common type of twin. Dizygotic twins, like any other siblings, will practically always have different sequences on each chromosome, due to chromosomal crossover during meiosis . Dizygotic twins share on average 50 percent of each other's genes, the same as siblings that are conceived and born at different times. Like any other siblings , dizygotic twins may look similar , particularly as they are
1575-602: The Expressionist movement was building. In this first phase of his career, Lang alternated between films such as Der Müde Tod ("The Weary Death") and popular thrillers such as Die Spinnen ("The Spiders"), combining popular genres with Expressionist techniques to create an unprecedented synthesis of popular entertainment with art cinema . In 1920, Lang met his future second wife, the writer Thea von Harbou . She and Lang co-wrote all of his movies from 1921 through 1933, including Dr. Mabuse, der Spieler ("Dr. Mabuse
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#17327875449181650-585: The Reich Ministry of Public Enlightenment and Propaganda . In banning the film, Goebbels stated that the film "showed that an extremely dedicated group of people are perfectly capable of overthrowing any state with violence", and that the film posed a threat to public health and safety. Lang was worried about the advent of the Nazi regime, partly because of his Jewish heritage, whereas his wife and co-screenwriter Thea von Harbou had started to sympathize with
1725-732: The Technical University of Vienna , where he studied civil engineering and eventually switched to art. He left Vienna in 1910 in order to see the world, traveling throughout Europe and Africa, and later Asia and the Pacific area. In 1913, he studied painting in Paris . At the outbreak of World War I , Lang returned to Vienna and volunteered for military service in the Austrian Army and fought in Russia and Romania , where he
1800-683: The Yoruba to 10% for Linha São Pedro, a tiny Brazilian settlement which belongs to the city of Cândido Godói . In Cândido Godói, one in five pregnancies has resulted in twins. The Argentine historian Jorge Camarasa has put forward the theory that experiments of the Nazi doctor Josef Mengele could be responsible for the high ratio of twins in the area. His theory was rejected by Brazilian scientists who had studied twins living in Linha São Pedro; they suggested genetic factors within that community as
1875-462: The blastocysts have fused. Monochorionic twins share the same placenta , and thus have a risk of twin-to-twin transfusion syndrome . Monoamniotic twins are always monozygotic . The survival rate for monoamniotic twins is somewhere between 50% and 60%. Monoamniotic twins, as with diamniotic monochorionic twins, have a risk of twin-to-twin transfusion syndrome . Also, the two umbilical cords have an increased chance of being tangled around
1950-445: The 1920s which had ultimately been directed by Joe May ), so Lang returned to Germany to make his "Indian Epic" (consisting of The Tiger of Eschnapur and The Indian Tomb ). Following the production, Brauner was preparing for a remake of The Testament of Dr. Mabuse when Lang approached him with the idea of adding a new original film to the series. The result was The Thousand Eyes of Dr. Mabuse (1960), whose success led to
2025-515: The French group Staub , which produces enameled cast iron cookware , Zwilling moved to expand the cookware segment of its business. In 1976 Henckels introduced the Four Star line, which is a fully forged knife with a molded handle made of polypropylene and a tang extending into the handle. The majority of Zwilling knives have blades constructed from high-carbon stainless steel, which is ice-hardened for sharpness and stain resistance, along with
2100-573: The Gambler," 1922 – which ran for over four hours, in two parts in the original version, and was the first in the Dr. Mabuse trilogy), the five-hour Die Nibelungen (1924), the dystopian film Metropolis (1927), and the science fiction film Woman in the Moon (1929). Metropolis went far over budget and nearly destroyed UFA, which was bought by right-wing businessman and politician Alfred Hugenberg . It
2175-841: The Grand Prix of St. Louis in 1904. It was also awarded with the Prussian State Golden Medal. Henckels was also given a royal warrant of appointment as purveyors of knives to the Imperial and Royal Court of Austria-Hungary (see K.u.k. Hoflieferant (in German) ). Since 1970, Zwilling is fully owned by Werhahn KG located in Neuss . The company operates several brands, including Zwilling J. A. Henckels, J. A. Henckels International, Miyabi (former Nippa), Staub, Demeyere, Ballarini, and BSF. Through these activities,
2250-485: The Hollywood studios before Pearl Harbor" as it is "clean and concentrated, elegant and precise, pointed without being preachy." His American films were often compared unfavorably to his earlier works by contemporary critics, although the restrained Expressionism of these films is now seen as integral to the emergence and evolution of American genre cinema, film noir in particular. Scarlet Street (1945), one of his films featuring Edward G. Robinson and Joan Bennett ,
2325-632: The Marriage Registry Office in Charlottenburg , Berlin, Lang married a theater actress, Elisabeth Rosenthal, who died on 25 September 1920, in their bathtub, under mysterious circumstances, of a single gunshot wound, deemed to have been fired by Lang's Browning revolver , from World War I. Lang's writing stint was brief, as he soon started to work as a director at the German film studio UFA , and later Nero-Film , just as
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2400-472: The Nazis in the early 1930s, and later joined the Nazi party in 1940. After he discovered von Harbou in bed with Ayi Tendulkar , an Indian journalist and student 17 years younger than her, they soon divorced. Lang's fears would be realized following his departure from Austria, as under the racist Nuremberg Laws he would be identified as half-Jewish even though his mother was a converted Roman Catholic, and he
2475-641: The U.S., followed by Canada, the Netherlands, Denmark, Switzerland, Japan, Italy, France, Spain, China. In 2008, subsidiaries were set up in Great Britain and Brazil. A Henckels shop front can be seen in a whole scene in Fritz Lang 's 1931 film M (approximately 51 minutes into the movie). In 2010 Jeffrey Elliot and Michael DeWan wrote The Zwilling J.A. Henckels Complete Guide to Knife Skills: The Essential Guide to Use, Techniques and Care , which
2550-453: The United States in 1939. Signing first with MGM Studios, Lang's crime drama Fury (1936) saw Spencer Tracy cast as a man who is wrongly accused of a crime and nearly killed when a lynch mob sets fire to the jail where he is awaiting trial. However, in Fury , he was not allowed to represent black victims in a lynching scenario or to criticize racism, which was his original intention. By
2625-560: The United States rose 76% from 1980 through 2009, from 9.4 to 16.7 twin sets (18.8 to 33.3 twins) per 1,000 births. The Yoruba people have the highest rate of twinning in the world, at 45–50 twin sets (90–100 twins) per 1,000 live births, possibly because of high consumption of a specific type of yam containing a natural phytoestrogen which may stimulate the ovarys to release an egg from each side. In Central Africa , there are 18–30 twin sets (or 36–60 twins) per 1,000 live births. In South America , South Asia , and Southeast Asia ,
2700-504: The Window (1944), Scarlet Street (1945) and The Big Heat (1953). He became a naturalized citizen of the United States in 1939. Lang was born in Vienna , as the second son of Anton Lang (1860–1940), an architect and construction company manager, and his wife Pauline "Paula" Lang ( née Schlesinger; 1864–1920). His mother was born Jewish and converted to Catholicism. His father
2775-514: The article. Fraternal twins can be any of the following: Among non-twin births, male singletons are slightly (about five percent) more common than female singletons. The rates for singletons vary slightly by country. For example, the sex ratio of birth in the US is 1.05 males/female, while it is 1.07 males/female in Italy. However, males are also more susceptible than females to die in utero , and since
2850-473: The babies. Because of this, there is an increased chance that the newborns may be miscarried or suffer from cerebral palsy due to lack of oxygen. When the division of the developing zygote into 2 embryos occurs, 99% of the time it is within 8 days of fertilization. Mortality is highest for conjoined twins due to the many complications resulting from shared organs. A 2006 study has found that insulin-like growth factor present in dairy products may increase
2925-548: The banks had closed by the time the meeting was over. Lang claimed that, after selling his wife's jewelry, he fled by train to Paris that evening, leaving most of his money and personal possessions behind. However, his passport of the time showed that he traveled to and from Germany a few times during 1933. Lang left Berlin for good on July 31, 1933, four months after his meeting with Goebbels and his initial departure. He moved to Paris, having divorced Thea von Harbou , who stayed behind, earlier in 1933. In Paris, Lang filmed
3000-450: The chance of dizygotic twinning. Specifically, the study found that vegan mothers (who exclude dairy from their diets) are one-fifth as likely to have twins as vegetarian or omnivore mothers, and concluded that "Genotypes favoring elevated IGF and diets including dairy products, especially in areas where growth hormone is given to cattle, appear to enhance the chances of multiple pregnancies due to ovarian stimulation." From 1980 to 1997,
3075-515: The cold, geometric style of his last American films, While the City Sleeps (1956) and Beyond a Reasonable Doubt (1956). Finding it difficult to find congenial production conditions and backers in Hollywood, particularly as his health declined with age, Lang contemplated retirement. The German producer Artur Brauner had expressed interest in remaking The Indian Tomb (from an original story by Thea von Harbou, that Lang had developed in
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3150-653: The company also operates its own retail shops both in Germany and internationally, among them about 200 sub-stores in China. Since 1970 the company has been owned by the Werhahn Group, with a staff of 3,200 worldwide. Profits amounted to € 282 million in 2007, with 80% of its profits generated outside Germany. In 2004, Henckels acquired the Japanese knife manufacturer Nippa and the U.S. beauty specialist Tweezerman, which
3225-662: The current shape with a red background since 1969. J. A. Henckels opened the first trading outlet in 1818 in Berlin , opening a shop in New York City in 1883 and followed a year later by Vienna . The company exhibited its products at the 1851 Great Exhibition at the Crystal Palace in Great Britain, being awarded an international knifesmithing medal. J. A. Henckels was awarded the Grand Prix prize in Paris in 1900 and
3300-406: The deactivation of different X chromosomes in female monozygotic twins, and in some extremely rare cases, due to aneuploidy , twins may express different sexual phenotypes , normally from an XXY Klinefelter syndrome zygote splitting unevenly. Monozygotic twins, although genetically very similar, are not genetically exactly the same. The DNA in white blood cells of 66 pairs of monozygotic twins
3375-413: The death rate in utero is higher for twins, it leads to female twins being more common than male twins. Zygosity is the degree of identity in the genome of twins. Dizygotic ( DZ ) or fraternal twins (also referred to as "non-identical twins", "dissimilar twins", "biovular twins", and, informally in the case of females, "sororal twins") usually occur when two fertilized eggs are implanted in
3450-408: The differences detected in this study would have occurred during embryonic cell-division (after the point of fertilization). If they occur early in fetal development, they will be present in a very large proportion of body cells. Another cause of difference between monozygotic twins is epigenetic modification , caused by differing environmental influences throughout their lives. Epigenetics refers to
3525-405: The early stages of embryonic development. A 1981 study of a deceased XXX twin fetus without a heart showed that although its fetal development suggested that it was an identical twin, as it shared a placenta with its healthy twin, tests revealed that it was probably a polar body twin. The authors were unable to predict whether a healthy fetus could result from a polar body twinning. However,
3600-469: The end of 1932, Lang started filming The Testament of Dr. Mabuse . Adolf Hitler came to power in January 1933, and by March 30, the new regime banned it as an incitement to public disorder. Testament is sometimes deemed an anti-Nazi film, as Lang had put phrases used by the Nazis into the mouth of the title character. A screening of the film was cancelled by Joseph Goebbels , and it was later banned by
3675-687: The epigenetic difference of three-year-old twins. Twins who had spent their lives apart (such as those adopted by two different sets of parents at birth) had the greatest difference. However, certain characteristics become more alike as twins age, such as IQ and personality. In January 2021, new research from a team of researchers in Iceland was published in the journal Nature Genetics suggesting that identical twins may not be quite as identical as previously thought. The four-year study of monozygotic (identical) twins and their extended families revealed that these twins have genetic differences that begin in
3750-480: The globe. In a study on the maternity records of 5750 Hausa women living in the Savannah zone of Nigeria , there were 40 twins and 2 triplets per 1000 births. Twenty-six percent of twins were monozygotic. The incidence of multiple births, which was about five times higher than that observed in any western population, was significantly lower than that of other ethnic groups, who live in the hot and humid climate of
3825-566: The influential M (1931), a film noir precursor. His 1929 film Woman in the Moon showcased the use of a multi-stage rocket , and also pioneered the concept of a rocket launch pad (a rocket standing upright against a tall building before launch having been slowly rolled into place) and the rocket-launch countdown clock. His other major films include Dr. Mabuse the Gambler (1922), Die Nibelungen (1924), and after moving to Hollywood in 1934, Fury (1936), You Only Live Once (1937), Hangmen Also Die! (1943), The Woman in
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#17327875449183900-536: The level of activity of any particular gene. A gene may become switched on, switched off, or could become partially switched on or off in an individual. This epigenetic modification is triggered by environmental events. Monozygotic twins can have markedly different epigenetic profiles. A study of 80 pairs of monozygotic twins ranging in age from three to 74 showed that the youngest twins have relatively few epigenetic differences. The number of epigenetic differences increases with age. Fifty-year-old twins had over three times
3975-406: The lowest mortality risk at about 9 percent, although that is still significantly higher than that of singletons. Monochorionic twins generally have two amniotic sacs (called Monochorionic–Diamniotic "MoDi"), which occurs in 60–70% of the pregnancies with monozygotic twins, and in 0.3% of all pregnancies. Monochorionic-Diamniotic twins are almost always monozygotic, with a few exceptions where
4050-459: The lowest rates are found; only 6 to 9 twin sets per 1,000 live births. North America and Europe have intermediate rates of 9 to 16 twin sets per 1,000 live births. Multiple pregnancies are much less likely to carry to full term than single births, with twin pregnancies lasting on average 37 weeks, three weeks less than full term. Women who have a family history of fraternal twins have a higher chance of producing fraternal twins themselves, as there
4125-683: The motion picture industry, located at 1600 Vine Street . Lang died from a stroke on August 2, 1976, and was interred in the Forest Lawn Hollywood Hills Cemetery in the Hollywood Hills of Los Angeles . While his career had ended without fanfare, Lang's American and later German works were championed by the critics of the Cahiers du cinéma , such as François Truffaut and Jacques Rivette . Truffaut wrote that Lang, especially in his American career,
4200-525: The number of twin births in the United States rose 52%. This rise can at least partly be attributed to the increasing popularity of fertility drugs and procedures such as IVF, which result in multiple births more frequently than unassisted fertilizations do. It may also be linked to the increase of growth hormones in food. About 1 in 90 human births (1.1%) results from a twin pregnancy. The rate of dizygotic twinning varies greatly among ethnic groups , ranging as high as about 45 per 1000 births (4.5%) for
4275-414: The occurrence of complications "was found to be more likely with increasing twin-to-twin delivery time interval" and suggested that the interval be kept short, though it noted that the study did not examine causes of complications and did not control for factors such as the level of experience of the obstetrician, the wish of the women giving birth, or the "management strategies" of the procedure of delivering
4350-473: The pregnancy. The timing of this separation determines the chorionicity (the number of placentae) and amniocity (the number of sacs) of the pregnancy. Dichorionic twins either never divided (i.e.: were dizygotic) or they divided within the first 4 days. Monoamnionic twins divide after the first week. In very rare cases, twins become conjoined twins . Non-conjoined monozygotic twins form up to day 14 of embryonic development, but when twinning occurs after 14 days,
4425-408: The rate of monozygotic twins) to 14 and more per thousand in some African countries. Dizygotic twins are also more common for older mothers, with twinning rates doubling in mothers over the age of 35. With the advent of technologies and techniques to assist women in getting pregnant, the rate of fraternals has increased markedly. Monozygotic ( MZ ) or identical twins occur when a single egg
4500-444: The same age. However, dizygotic twins may also look very different from each other (for example, be of opposite sexes). Studies show that there is a genetic proclivity for dizygotic twinning. However, it is only the mother who has any effect on the chances of having such twins; there is no known mechanism for a father to cause the release of more than one ovum . Dizygotic twinning ranges from six per thousand births in Japan (similar to
4575-536: The same sex, while fraternal twins may or may not. In very rare cases fraternal (and semi- or half-identical ) twins can have the same mother and different fathers ( heteropaternal superfecundation ). In contrast, a fetus that develops alone in the womb (the much more common case in humans) is called a singleton , and the general term for one offspring of a multiple birth is a multiple . Unrelated look-alikes whose resemblance parallels that of twins are referred to as doppelgänger . The human twin birth rate in
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#17327875449184650-614: The second twin. There have also been cases in which twins are born a number of days apart. Possibly the worldwide record for the duration of the time gap between the first and the second delivery was the birth of twins 97 days apart in Cologne, Germany, the first of which was born on November 17, 2018. Fritz Lang Friedrich Christian Anton Lang ( Austrian German pronunciation: [ˈfriːdʁɪç ˈkrɪsti̯a(ː)n ˈantɔn ˈlaŋ] ; December 5, 1890 – August 2, 1976), better known as Fritz Lang ( pronounced [frɪts ˈlaŋ] ),
4725-455: The southern part of the country. The incidence of multiple births was related to maternal age but did not bear any association to the climate or prevalence of malaria . Twins are more common in people of African descent. The predisposing factors of monozygotic twinning are unknown. Dizygotic twin pregnancies are slightly more likely when the following factors are present in the woman: Women undergoing certain fertility treatments may have
4800-414: The splitting of a zygote or embryo is unknown. IVF techniques are more likely to create dizygotic twins. For IVF deliveries, there are nearly 21 pairs of twins for every 1,000. Monozygotic twins are genetically nearly identical and they are the same chromosomal sex unless there has been a mutation during development. The children of monozygotic twins test genetically as half-siblings (or full siblings, if
4875-516: The time Fury was released, Lang had been involved in the creation of the Hollywood Anti-Nazi League, working with Otto Katz , a Czech who was a Comintern spy. He made four films with an explicitly anti-Nazi theme, Man Hunt (1941), Hangmen Also Die! (1943), Ministry of Fear (1944) and Cloak and Dagger (1946). Man Hunt , wrote Dave Kehr in 2009, "may be the best" of the "many interventionist films produced by
4950-436: The twins will likely be conjoined. Furthermore, there can be various degrees of shared environment of twins in the womb, potentially leading to pregnancy complications . It is a common misconception that two placentas automatically implies dizygotic twins, but if monozygotic twins separate early enough, the arrangement of sacs and placentas in utero is in fact indistinguishable from that of dizygotic twins. DiDi twins have
5025-466: The uterus wall at the same time. When two eggs are independently fertilized by two different sperm cells , fraternal twins result. The two eggs, or ova , form two zygotes , hence the terms dizygotic and biovular . Fraternal twins are, essentially, two ordinary siblings who happen to develop in the womb together and who are born at the same time, since they arise from two separate eggs fertilized by two separate sperm , just like ordinary siblings. This
5100-421: Was a financial flop, as were his last silent films Spies (1928) and Woman in the Moon , produced by Lang's own company. In 1931, independent producer Seymour Nebenzahl hired Lang to direct M for Nero-Film. His first "talking" picture , considered by many film scholars to be a masterpiece of the early sound era, M is a disturbing story of a child murderer ( Peter Lorre in his first starring role) who
5175-455: Was an Austrian-American film director, screenwriter, and producer who worked in Germany and later the United States. One of the best-known émigrés from Germany's school of Expressionism , he was dubbed the "Master of Darkness" by the British Film Institute . He has been cited as one of the most influential filmmakers of all time. Lang's most celebrated films include the groundbreaking futuristic science-fiction film Metropolis (1927) and
5250-420: Was analyzed for 506,786 single-nucleotide polymorphisms known to occur in human populations. Polymorphisms appeared in 2 of the 33 million comparisons, leading the researchers to extrapolate that the blood cells of monozygotic twins may have on the order of one DNA-sequence difference for every 12 million nucleotides, which would imply hundreds of differences across the entire genome. The mutations producing
5325-556: Was described as a "lapsed Catholic." He was baptized on December 28, 1890, at the Schottenkirche in Vienna. He had an elder brother, Adolf (1884–1961). Lang's parents were of Moravian descent. At one point, he noted that he was “born [a] Catholic and very puritan". Ultimately describing himself as an atheist , Lang believed that religion was important for teaching ethics. After finishing school, Lang briefly attended
5400-421: Was greatly underappreciated by "cinema historians and critics" who "deny him any genius when he 'signs' spy movies ... war movies ... or simple thrillers." Filmmakers that were influenced by his work include George Lucas , Jacques Rivette , William Friedkin , Steven Spielberg , Christopher Nolan , Luis Buñuel , Osamu Tezuka , Alfred Hitchcock , Satyajit Ray , Jean-Luc Godard and Stanley Kubrick . Lang
5475-457: Was known for being hard to work with, epitomized the stereotype of the tyrannical Germanic film director, a type embodied also by Erich von Stroheim and Otto Preminger ; Lang wore a monocle , adding to the stereotype. In the films of his German period, Lang produced a coherent oeuvre that established the characteristics later attributed to film noir , with its recurring themes of psychological conflict, paranoia, fate and moral ambiguity. At
5550-440: Was raised as such. According to Lang, propaganda minister Joseph Goebbels called Lang to his offices to inform him – apologetically – that The Testament of Dr. Mabuse was being banned but, nevertheless, he was so impressed by Lang's abilities as a filmmaker (especially Metropolis ), that he offered Lang the position of head of German film studio UFA. Lang said it was during that meeting he had decided to leave for Paris – but that
5625-543: Was wounded four times and lost sight in his right eye, the first of many vision issues he would face in his lifetime. While recovering from his injuries and shell shock in 1916, he wrote some scenarios and ideas for films. He was discharged from the army with the rank of lieutenant in 1918 and did some acting in the Viennese theater circuit for a short time before being hired as a writer at Decla Film , Erich Pommer 's Berlin-based production company. On 13 February 1919, in
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