Bra-ket notation is widespread in quantum mechanics: almost every phenomenon that is explained using quantum mechanics — including a large portion of modern physics — is usually explained with the help of bra-ket notation.

The same phenomenon occurs in Brittany, where many singers record songs in Breton, traditional or modern ( hip hop, rap, and so on.

The position that " Christian theological anti-Judaism is a phenomenon distinct from modern antisemitism, which is rooted in economic and racial thought, so that Christian teachings should not be held responsible for antisemitism " has been articulated, among other places, by Pope John Paul II in ' We Re member: A Reflection on the Shoah ,' and the Jewish declaration on Christianity, Dabru Emet .. Several scholars, including Susannah Heschel, Gavin I Langmuir and Uriel Tal the General Synod has affirmed that " the good news of salvation in Jesus Christ is for all and must be shared with all including people from other faiths or of no faith and that to do anything else would be to institutionalize discrimination ".

Many thinkers point to the concept of citizenship beginning in the early city-states of ancient Greece, although others see it as primarily a modern phenomenon dating back only a few hundred years.

In modern terms, we relate affinity to the phenomenon whereby certain atoms or molecules have the tendency to aggregate or bond.

In his work Foundations of Natural Right ( 1796 ), Fichte argued that self-consciousness was a social phenomenon — an important step and perhaps the first clear step taken in this direction by modern philosophy.

The designers had come up against an engineering phenomenon that limits the top speed of even today's modern hydrofoils.

One of the enduring influences the Star Wars saga has had in popular culture is the idea of the fictional Jedi values being interpreted as a modern philosophical path or religion, spawning various movements such as the controversial Jediism ( religious ) and the Jedi census phenomenon.

This is the one of many stories which leads to the modern expression of " Tall Poppy Syndrome " to describe the phenomenon of tearing down individuals who rise too far above the majority.

James Gleick claims that the mondegreen is a distinctly modern phenomenon.

Taking a different view from other modern scholars, Ulansey argues that the Mithraic mysteries began in the Greco-Roman world as a religious response to the discovery by the Greek astronomer Hipparchus of the astronomical phenomenon of the precession of the equinoxes – a discovery that amounted to discovering that the entire cosmos was moving in a hitherto unknown way.

There are two main perspectives on the origins and basis of nationalism, one is the primordialist perspective that describes nationalism as a reflection of the ancient and perceived evolutionary tendency of humans to organize into distinct grouping based on an affinity of birth ; the other is the modernist perspective that describes nationalism as a recent phenomenon that requires the structural conditions of modern society.

There are two major bodies of thought on the causes of nationalism, one is the modernist perspective that describes nationalism as a recent phenomenon that requires the structural conditions of modern society, in order to exist ; the other is the primordialist perspective that describes nationalism as a reflection of the ancient and perceived evolutionary tendency of humans to organize into distinct grouping based on an affinity of birth.

The modern term for this phenomenon is pancake ice.

For modern students today, it can be difficult to remember that the wide use and availability of written texts is a phenomenon that was just coming into vogue in Classical Greece.

This phenomenon was first articulated through Ravenstein's Laws of migration in the 1880s, upon which modern theories are based.

This effect is typically very minor as normal tissue perfusion dissipates most of the heat, but with high intensity, it can also cause small pockets of gas in body fluids or tissues to expand and contract / collapse in a phenomenon called cavitation ; however this is not known to occur at diagnostic power levels used by modern diagnostic ultrasound units.

The Mafia played a huge role in this process, which was an important element in the Mafia's transition from a mostly rural phenomenon into a modern criminal organisation.

* — Halifax academic Laura Penny's study of the phenomenon of bullshit and its impact on modern society.

Fromm's brand of socialism rejected both Western capitalism and Soviet communism, which he saw as dehumanizing and that resulted in a virtually universal modern phenomenon of alienation.

The phenomenon, however, long preceded the modern term ; for example, one of the earliest known instances of crowd violence at a sporting event took place in ancient Constantinople.

A modern example of this phenomenon, meanwhile, is that of the priestly monarchs of the Yoruba holy city of Ile-Ife in Nigeria, where ritual ceremonies have been performed for centuries by the reigning Onis of the realm for the sustenance of the entire planet and its people.

It can be argued that the uninterrupted occurrence of regular menstruation month after month for decades is a modern phenomenon, as in the past women had more frequent menstrual rest due to pregnancy and lactation.

Urbanisation is not merely a modern phenomenon, but a rapid and historic transformation of human social roots on a global scale, whereby predominantly village culture is being rapidly replaced by predominantly urban culture.

According to Akbar S. Ahmed, like modern anthropologists, he engaged in extensive participant observation with a given group of people, learnt their language and studied their primary texts, and presented his findings with objectivity and neutrality using cross-cultural comparisons.

A combination of cutting-edge modern technology and extensive research and reinvention of ancient techniques were used.

Bede's extensive use of miracles is disconcerting to the modern reader who thinks of Bede as a more or less reliable historian, but men of the time accepted miracles as a matter of course.

Today, direct engagements between aircraft are rare-the most modern fighter-interceptors carry much more extensive bombing payloads, and are used to bomb precision land targets, rather than to fight other aircraft.

* System: privatization began in 1988 ; advanced telecommunications infrastructure ; modern system based on extensive microwave radio relay facilities ; fixed-line connections have dropped in recent years as mobile-cellular usage continues to increase, reaching a level of 85 telephones per 100 persons

The book's second part contained an extensive analysis on the modern state's institutionalized forms of " classroom learning " as the cultural – historical context that shapes much of modern learning and socialization.

The current dome dates from 1870, although it was restored during 1994 – 1997, as part of extensive modern renovations to the church, which have been ongoing since 1959.

; Telephone system: large system ; underwent extensive upgrading during 1990s and is reasonably modern ; Telecom Egypt, the landline monopoly, has been increasing service availability and in 2006 fixed-line density stood at 14 per 100 persons ; as of 2007 there were three mobile-cellular networks and service is expanding rapidly

He and his student Theophrastus made extensive observations on plant and animal migrations, biogeography, physiology, and on their behaviour, giving an early analogue to the modern concept of an ecological niche.

The city is close to the former late medieval / modern boundary between West Slavic and Germanic lands and it has a complex political history with periods of Polish rule, periods of German rule, and extensive self-rule, with two spells as a free city.

* modern networks reach all areas ; microwave radio relay carries most traffic ; 35. 000 kilometers of fiber optics and extensive open-wire network ; submarine cables to off-shore islands

During an extensive gene-mapping project, archaeologists analyzed the heritage of more than 110 modern grape cultivars, and narrowed their origin to a region in Georgia, where wine residues were also discovered on the inner surfaces of 8, 000-year-old ceramic storage jars.

Accepting the existence of these two societies, the constant tension between them, and extensive geographic and social mobility tied to a market economy holds the key to a clearer understanding of the evolution of the social structure, economy, and even political system of early modern France.

The Isle of Man benefits from an extremely modern and extensive communications infrastructure, which underpins the main sectors of the Island's economy.

English is thus more closely related to West Frisian than to any other modern language, although less than a quarter of the vocabulary of Modern English is shared with West Frisian or other West Germanic languages because of extensive borrowings from Norse, Norman, Latin, and other languages.

The massive fifty volumes are one of the most extensive collections of first-hand information from the period of the early republic and are widely cited by modern historians.

At some stage during their migration south from a tertiary dispersal area Bantu speaking peoples came to settle the lands that now make up Lesotho as well as a more extensive territory of fertile lands that surround modern day Lesotho.

Because extensive European contact began so late in the country's history, the traditional social structure carried over into modern times with little change.

The Essenes have gained fame in modern times as a result of the discovery of an extensive group of religious documents known as the Dead Sea Scrolls, which are commonly believed to be Essenes ' library — although there is no proof that the Essenes wrote them.

The prosperity enjoyed during the first two centuries ( 1540 – 1740 ) while contributing to colonial growth ; the placing of extensive regional judicial authority ( Real Audiencia ) as part of its jurisdiction ; and the pivotal role it played at the height of the Spanish Empire-the first modern global empire-helped define a distinctive sense of autonomy and of regional or national identity within Panama well before the rest of the colonies.

Although Machu Picchu is by far the most well-known internationally, Peru boasts many other sites where the modern visitor can see extensive and well-preserved ruins, remnants of the Inca-period and even older constructions.

The geneticist Stephen Oppenheimer carried out an extensive research of the British Isles, finding that the Celtic and Anglo-Saxon influx had little effect, with the majority of British ethnicity tracing back from an ancient Palaeolithic Iberian migration, now represented by the Basques so that 75 % of the modern British population could ( in theory ) trace their ancestry back 15, 000 years.

Both Polar and Nether-Polar Urals are typically Alpine ; they bear traces of Pleistocene glaciation, along with permafrost and extensive modern glaciation, that includes 143 extant glaciers.

His 1867 Elementary Treatise of Quaternions included extensive treatment of the nabla or del operator and is very close to modern vector analysis.