Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Colloid & polymer science 259 (1981), S. 875-884 
    ISSN: 1435-1536
    Keywords: Liquid crystalline polymer ; Structure ; Phase transitions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Zusammenfassung Für ein Seitenkettenpolymeres, das zusätzlich zum teilkristallinen Zustand und zur isotropen Schmelze einen flüssig-kristallinen Zustand aufweist, wurden die Strukturen und Texturen untersucht sowie thermodynamische Eigenschaften. Außerdem wurde die Kinetik der Phasenumwandlungen analysiert. Es zeigt sich, daß die Eigenschaften zwischen denen üblicher Polymerer und denen von niedrigmolekularen flüssigen Kristallen liegen. Insbesondere zeigte sich, daß die Beziehung zwischen molekularer Struktur und Textur von der bei niedrigmolekularen flüssigen Kristallen abweicht, und daß die Taktizität der Kette einen starken Einfluß auf die Eigenschaften nicht nur der kristallinen Phase sondern auch der flüssig-kristallinen Phase ausübt.
    Notes: Summary The structures, textures as well as thermodynamic properties of a side chain polymer exhibiting a liquid crystalline phase in addition to a partially crystalline state and the isotropic fluid state were investigated. Furthermore the kinetics of phase transitions between these states were analyzed. It was found that the properties of this polymer are intermediate between that of low molecular weight liquid crystals and common polymers. In particular it was observed that the relation between the liquid crystalline texture and the structure is different from that of low molecular weight liquid crystals and that the properties of the crystalline and liquid crystalline state depend strongly on the tacticity of the polymer.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Digestive diseases and sciences 42 (1997), S. 2585-2590 
    ISSN: 1573-2568
    Keywords: IRRITABLE BOWEL SYNDROME ; PREVALENCE ; SELF-REPORTED SYMPTOMS
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Although there are several symptomclassification systems for irritable bowel syndrome(IBS), for example, the Manning or Rome criteria, therehas been no previous research on how well theseclassifications correspond to each other or to personsdiagnosed with IBS. We examined data from the DigestiveDisorders Supplement of the 1989 National HealthInterview Survey (NHIS) to assess demographic,socioeconomic, and health status characteristics of two groupsof IBS sufferers — those who met the Manning orRome criteria and those who reported having IBS but didnot meet either criteria. The results showed that the overlap between estimates of IBS and personswith IBS-like symptoms depended on the definition ofIBS. There were socioeconomic differences between thetwo IBS groups and higher rates of functional orwork-related activity limitation and health care utilizationfor all IBS groups relative to US national averages. Insummary, these findings indicate that IBS affects alarge portion of the US population, regardless of the definition used to describe thecondition. Our results suggest that there is a largeundiagnosed population with numerous symptoms consistentwith IBS, but further research is required to determine the differences between people who do and donot seek care, their impact on the health care system,and future therapies to reduce symptomatology andsuffering.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...