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Vocal tract area functions estimated from 38 sets of X-rayed vowel articulations collected from the literature and from new X-ray motion films of English and Arabic speech reveal four constriction locations: along the hard palate, along the soft palate, in the upper pharynx and in the lower larynx. Each location is appropriate for a definable class of vowel qualities, confirming the quantal nature
Kapitlet diskuterar temat det goda livet och upplevelsesamhället utifrån den tyske sociologen Gerhard Schulzes författarskap. Som sådant utgör det ett bidrag till en samtidsanalys.
The former Soviet empire spanned eleven time zones and contained half the world's forests; vast deposits of oil, gas and coal; various ores; major rivers such as the Volga, Don and Angara; and extensive biodiversity. These resources and animals, as well as the people who lived in the former Soviet Union – Slavs, Armenians, Georgians, Azeris, Kazakhs and Tajiks, indigenous Nenets and Chukchi – were
Extreme environments (high and low temperature, high and low pH, etc.) are inhabited by a vast and diverse flora of microorganisms, which are adapted to these environments (extremophiles). The enzymes produced by extremophiles are active under these harsh conditions and are thus applicable in processes, where conditions are outside the working range of enzymes originating from mesophiles. In this
Popular Abstract in Swedish Selen är ett essentiellt näringsämne som behövs för att upprätthålla flera viktiga funktioner i kroppen, huvudsakligen genom en speciell grupp proteiner som heter selenoproteiner. Det finns minst 25 stycken olika selenoproteiner i människan och flera av dem skyddar kroppen mot oxidation medan vissa andra sköter regleringen av sköldkörtelhormoner. Många selenoproteiners Selenium is a micronutrient that is essential for many important life processes due to the action of the specific selenoproteins containing one or more of the 21st amino acid, selenocysteine. Twenty-five selenoprotein genes have been found in the human genome but the function of many of them is not yet known. Some of the characterised selenoproteins have, however, antioxidant properties. Selenium
A methodology was developed and tested in six case studies at four medium-sized manufacturing companies within the machine engineering industry. Existing and planned work environments and production processes were described with the aid of computer-generated pictures. The pictures were used within the framework of an action research methodology in which managers and those employees affected, toget
In this report, the technical and economical feasibility to produce higher alkanes from bio-glycerol has been investigated. The main purpose of producing this kind of chemicals would be to replace the fossil LPG used in upgraded biogas production. When producing biogas and exporting it to the natural gas grid, the Wobbe index and heating value does not match the existing natural gas. Therefore, th
