| Z disk ... Zackhras, Ruben |
| | - Z disk
- (from the article "muscle") ...In the centre of the I band there is a prominent dense line called the Z line, although in reality, considering the three-dimensional structure of the myofibril, it is more appropriate to speak of Z disks. The area between two ...
- Z line
- (from the article "muscle") ...In a longitudinal section through a group of myofibrils (Figure 7), there is a light band of low density called the I band. In the centre of the I band there is a prominent dense line called the Z line, ...
- Z particle
- massive electrically neutral carrier particle of the weak force that acts upon all known subatomic particles. It is the neutral partner of the electrically charged W particle. The Z particle has a mass of 91.19 gigaelectron volts (GeV; 109 eV), ... [10 Related Articles]
- Z-axis focusing
- (from the article "mass spectrometry") The form of focusing in the analyzers described above has assumed that the forces acting upon an ion lie entirely in the same plane, generally referred to as the x-y plane, with the y axis defining the direction of the ...
- Z-DNA
- (from the article "nucleic acid") ...variants of DNA are known. In A-DNA, which forms under conditions of high salt concentration and minimal water, the base pairs are tilted and displaced toward the minor groove. Left-handed Z-DNA forms most readily in strands that contain sequences with ...
- Z-Force
- (from the article "China") ...was beginning to bomb Yangtze shipping, and had conducted a successful raid on Japanese airfields on Taiwan. A second training centre had been started at Guilin to improve 30 more Chinese divisions (Z-Force). The campaign to open a land route ...
- z-score
- (from the article "statistics") ...inclusion in the data set. If an error has been made, corrective action, such as rejecting the data value in question, can be taken. The mean and standard deviation are used to identify outliers. A z-score can be computed for ...
- Z-twist
- (from the article "twisting") ...and rope production, process that binds fibres or yarns together in a continuous strand, accomplished in spinning or playing operations. The direction of the twist may be to the right, described as Z twist, or to the left, described as ...
- Z3
- (from the article "Zuse computer") ...and contemporaries developing software for his computer, the language in which it was to be programmed. Although all his early prewar machines were really calculators-not computers-his Z3, completed in December 1941 (and destroyed on April 6, 1945, during an Allied ...
- Z4
- (from the article "Zuse computer") Zuse began construction of the Z4 in 1943 with funding from the German Air Ministry. Like his Z3, the Z4 used electromechanical relays, in part because of the difficulty in acquiring the roughly 2,000 necessary vacuum tubes in wartime Germany. ...
- za
- in feudal Japan, any of the mercantile or craft guilds that flourished about 1100-1590. They did not become fully organized until the Muromachi period (1338-1573), when they began to monopolize the production, transport, and sale of merchandise. In exchange for ... [1 Related Articles]
- ZA 12
- (from the article "zinc processing") ...high-performance zinc-aluminum casting alloys now known internationally as the ZA series. ZA 8 is an alloy used for gravity-cast parts in which improved creep resistance is required, whereas alloys ZA 12 and ZA 27 are general-purpose foundry alloys used in ...
- ZA 27
- (from the article "zinc processing") ...zinc-aluminum casting alloys now known internationally as the ZA series. ZA 8 is an alloy used for gravity-cast parts in which improved creep resistance is required, whereas alloys ZA 12 and ZA 27 are general-purpose foundry alloys used in sand-casting, ...
- ZA 8
- (from the article "zinc processing") Research conducted since the late 1960s has been responsible for the emergence of a new series of high-performance zinc-aluminum casting alloys now known internationally as the ZA series. ZA 8 is an alloy used for gravity-cast parts in which improved ...
- Za Qu River
- (from the article "Mekong River") The sources of the Mekong, including its principal headstream, the Za Qu River, rise at an elevation of more than 16,000 feet (4,900 metres) on the north slope of the Tanggula Mountains in Qinghai province. They flow southeast through the ...
- ZA series
- (from the article "zinc processing") Research conducted since the late 1960s has been responsible for the emergence of a new series of high-performance zinc-aluminum casting alloys now known internationally as the ZA series. ZA 8 is an alloy used for gravity-cast parts in which improved ...
- Za'faranlu Kurd
- (from the article "Quchan") town, northeastern Iran. Most of the inhabitants of Quchan are descended from a tribe of Za'faranlu Kurds resettled there by Shah 'Abbas I in the 17th century. In return for frontier military service, the resettled Kurds enjoyed a wide-ranging autonomy ...
- Za'tar, Tall al-
- former Palestinian refugee camp, Jabal Lubnan muhafazah (governorate), central Lebanon, north of Beirut, near Nab'a. The camp was the last large Muslim outpost in the midst of the predominantly Christian inhabited area of north Lebanon and had ... [1 Related Articles]
- Zaandam
- (from the article "Noord-Holland") ...There are cattle and cheese markets at Purmerend and Alkmaar. The province's economy is centred on Amsterdam, the chief commercial centre, and the Zaanstreek industrial area, particularly at Zaandam.ZaanstadZaanstad...along the ...
- Zaanstad
- gemeente (municipality), western Netherlands. It lies along the Zaan River near its junction with the North Sea Canal. An industrial area 6 miles (10 km) northwest of Amsterdam, Zaanstad was created in 1974 at the merger of ...
- Zab River
- (from the article "Iraq") ...border, is the country's highest point, Ghundah Zhur, which reaches 11,834 feet (3,607 metres). The region is heavily dissected by numerous tributaries of the Tigris, notably the Great and Little Zab rivers and the Diyala and 'Uzaym (Adhaim) rivers. These ...
- Zababa
- (from the article "Anatolian religion") ...that this is the deity denoted in the texts by the logogram KAL, to be read Kurunda or Tuwata, later Ruwata, Runda. The war god also appears, though his Hittite name is concealed behind the logogram ZABABA, the name of ...
- Zabala, Bruno Mauricio de
- (from the article "Montevideo") Montevideo was founded in 1726 by Bruno Mauricio de Zabala, governor of Buenos Aires, to counteract the Portuguese advance into the area from Brazil. During its early years, Montevideo was mostly a Spanish garrison town. Trade expanded toward the end ...
- Zabarella, Jacopo
- (from the article "Europe, history of") ...theories to those of Ptolemy and Aristotle. Thus, the revival of ancient science brought heliocentric astronomy to the fore again after almost two millennia. Renaissance philosophers, most notably Jacopo Zabarella, analyzed and formulated the rules of the deductive and inductive ...
- Zabdicene
- (from the article "Mesopotamia, history of") ...of the Parthian period the desert caravan city of Hatra claimed hegemony over this area. There were other principalities in the northwest: Sophene, where Tigranes' capital was located; Gordyene and Zabdicene (near modern Colemerik in eastern Turkey), located to the ...
- Zabid
- town, western Yemen. It lies on the bank of the Wadi Zabid and at the eastern fringe of the Tihamah coastal plain, about 10 miles (16 km) from the Red Sea coast. An ancient Yemeni centre, Zabid was refounded in ... [4 Related Articles]
- Zabljak
- (from the article "Durmitor") ...the highest, Bobotov Kuk, reaching 8,274 feet (2,522 metres). Between the peaks are deep valleys and glacial lakes; dense pine and fir forests surround the lakes. The highest settlement in Serbia, Zabljak, is a tourist centre; winter sports are popular. ...
- Zablocki, Franciszek
- (from the article "Polish literature") ...who wrote a popular national comic opera, Cud mniemany czyli Krakowiacy i gorale (1794; "The Pretended Miracle, or Krakovians and Highlanders"); and Franciszek Zablocki, who is important for Fircyk w zalotach (1781; "The Dandy's ...
- Zabrze
- city, Slaskie wojewodztwo (province), southern Poland. It is situated in the Upper Silesian industrial district.
- zabt
- (from the article "India") ...in copper coin (dams). The peasants thus had to enter the market and sell their produce in order to meet the assessment. This system, called zabt, was applied in northern India and in Malwa and parts of ...
- ZAC refractory
- (from the article "industrial glass") ...recommended for areas of glass contact as well as the furnace crown. Seventy-five years later, in 1942, electric-arc fusion-cast refractories became commercially available-particularly the ZAC refractory (35 percent zirconia, 53 percent alumina, and 12 percent silica) developed by Gordon Fulcher ...
- Zacapa
- town, eastern Guatemala, situated at 738 feet (225 metres) above sea level along the San Jose River. Although the town is old, it grew greatly in size and importance only after the Puerto Barrios-Guatemala City railroad was completed; it is ...
- Zacapu
- city, north-central Michoacan estado (state), west-central Mexico. It is in the Sierra de Nahuatzen, 6,500 feet (1,980 m) above sea level and west of Morelia, the state capital. Agriculture and livestock raising are the principal sources of ...
- Zacatecas
- estado (state), north-central Mexico. It is bordered by the states of Coahuila to the north, San Luis Potosi to the east, Jalisco and Aguascalientes to the south, and Nayarit and Durango to the west. Its capital is ... [1 Related Articles]
- Zacatecas
- city, capital of Zacatecas estado (state), north-central Mexico. Located in the southern part of the state, it lies in a deep, narrow ravine, about 8,200 feet (2,500 metres) above sea level. The city's name means "place where ... [1 Related Articles]
- Zacatecoluca
- city, southern El Salvador. It lies in the Lempa River valley, at the foot of San Vicente Volcano. A commercial centre for the surrounding agricultural area, it also trades in cotton goods, baskets, salt, and lumber and produces cement. An ...
- Zacatenco
- (from the article "Middle American Indian") ...and the transition from small villages to ceremonial towns of 5,000 inhabitants was completed. The archaeological evidence of this may be seen in the central valley of Mexico at El Arbolillo, Zacatenco, Tlatilco, and, finally, Ticoman. The same developmental sequence ...
- Zaccaria, Benedetto
- Genoese merchant, diplomat, and admiral, hero of a decisive Genoese naval victory over Pisa at Meloria (1284).
- Zaccaria, Maria
- (from the article "Greece, history of") ...the company. The last Navarrese prince, Pierre de St. Superan, joined the Ottomans in 1401 to raid Byzantine possessions in the southern Peloponnese; he died in 1402. He was succeeded by his widow, Maria Zaccaria, representative of an important Genoese ...
- Zaccaria, Saint Antonio Maria
- Italian priest, physician, and founder of the congregation of Clerks Regular of St. Paul, or Barnabites, a religious order devoted to the study of the Pauline Letters.
- Zacchini, Mario A.
- Italian-born circus performer who was the last of his family to perform in circuses and carnivals as a human cannonball-being shot from a cannon into a net on the other side of the circus tent-a stunt he carried out thousands ...
- Zacconi, Lodovico
- Italian musicologist, last of a distinguished line of Renaissance writers on music. [1 Related Articles]
- Zach, Franz Xaver, Freiherr von
- (baron of) German-Hungarian astronomer patronized by Duke Ernst of Saxe-Gotha-Altenburg. [2 Related Articles]
- Zach, Natan
- (from the article "Literature") In poetry 2004 was the year of the veterans. Natan Zach penned a witty, moving collection, ha-Zamir kevar lo gar po yoter ("The Nightingale No Longer Lives Here"); Ori Bernstein collected his poems in Shirim 1962-2002 ("Poems 1962-2002"); and Mosheh ...
- Zacharias, Saint
- pope from 741 to 752. [5 Related Articles]
- Zachariasen, W. H.
- (from the article "industrial glass") In 1932 W.H. Zachariasen published The Atomic Arrangement in Glass, a classic paper that had perhaps the most influence of any published work on glass science. Zachariasen's work placed the understanding of glass structure and its relationship to composition on ...
- Zachodniopomorskie
- wojewodztwo (province), northwestern Poland. Created in 1999 as part of Poland's provincial reorganization, it comprises the former (1975-98) provinces of Szczecin and Koszalin, as well as portions of the former provinces of Gorzow, Pila, and Slupsk. It ...
- Zachow, Friedrich W.
- (from the article "Handel, George Frideric") The son of a barber-surgeon, Handel showed a marked gift for music and became a pupil in Halle of the composer Friedrich W. Zachow, learning the principles of keyboard performance and composition from him. His father died when Handel was ...
- Zack, Leon
- (from the article "stained glass") ...emblematic style of Leger to reveal the true expressive potentialities of slab glass and concrete. A third important work of this period is the long friezelike window created by the sculptor Leon Zack for the Church of Notre-Dame-des-Pauvres (1955) in ...
- Zackenstil
- (from the article "painting, Western") In Germany the graceful pictorial style did not become popular. Instead the successor to the Byzantine conventions of the 12th century was an extraordinarily twisted and angular style called the Zackenstil. In the Soest altar (c. 1230-40; now in the ...
- Zackhras, Ruben
- (from the article "Marshall Islands") In January 2004 Kessai Note was inaugurated president of the Marshall Islands by the Nitijela (Congress) after having been reelected in November 2003. Vice Pres. Ruben Zackhras was also inaugurated.
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