Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

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

Proceed reservation?

Export
Filter
  • 2000-2004  (2)
  • 1990-1994  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Latent and Sensible Energy Flux Over Deforested Land Surfaces in the Eastern Amazon and Northern Thailand (2000)
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Singapore journal of tropical geography 21 (2000), S. 0 
    Details
    ISSN: 1467-9493
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geography
    Notes: Land cover change may impact watershed hydrology and regional climate by altering land-atmosphere exchanges of energy and water. Conversion of forest to pasture has previously been shown to decrease the rate of evaporation (including transpiration) because of reduced aerodynamic roughness, less canopy rainfall interception and greater canopy resistance during dry periods. However, less is known about the effects of forest replacement land covers other than pasture. In this study, field measurements of meteorological processes, stomatal resistance, and Leaf Area Index (LAI) were taken over various deforested land surfaces in the eastern Amazon Basin and in northern Thailand. Based on these measurements, evaporation and sensible heat flux were estimated over each site. Results show the degree to which different land covers replacing tropical forest affect energy partitioning. In comparison with forest, non-irrigated, actively and recently cultivated sites had sharply lower rates of evaporation. Secondary vegetation generally had higher rates of evaporation than actively or recently used sites. The proportion of energy used for evaporation increased rapidly with age in secondary vegetation. Evaporation rates at sites eight and 25 years after abandonment in the Thailand study area were enhanced by positive sensible energy advection from nearby cultivated areas, and were similar to those of primary forest. Differences in dry season evaporation rates of 3-, 8- and 25-year secondary vegetation are explained, in part, by the differences in canopy resistance. Minimum canopy resistance was 223, 61 and 58 s m −1 , respectively at the 3-, 8- and 25-year sites.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/1467-9493.00070
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Isolation and Characteristics of Bacillus subtilis CN2 and its Collagenase Production (2002)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 67 (2002), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: : :An isolated bacterium strain named CN2 found in Vietnamese fish sauce has been identified as Bacillus subtilis. In an enzyme-producing medium with 0% and 8% NaCl concentration, the CN2 strain produced the maximum collagenase activity, 3.07 U/ml and 2.60 U/ml. The strain also produced gelatinase, but the maximum activity was only 1.03 U/ml at 8 h of incubation time and prolonged more than 22 h. Bacillus subtilis CN2, grown slowly in a medium containing 12% NaCl, showed a decreased rate of collagenase activity with a maximum activity of 1.60 U/ml at 18 h of incubation time. The culture supernatant of CN2 strain digested a purified native collagen from rat tail tendon as well as αs-casein at Met123-Lys124 position. Therefore The culture supernatant of CN2 can be used to produce healthy foods.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2002.tb09474.x
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Phenotypic character of the lipid hydroperoxide-resistant mutant: Positive relationship between flocculation and resistance against lipid hydroperoxide inSaccharomyces cerevisiae (1992)
    Springer
    World journal of microbiology and biotechnology 8 (1992), S. 296-300 
    Details
    ISSN: 1573-0972
    Keywords: Flocculation ; linoleic acid hydroperoxide ; lipid hydroperoxide ; Saccharomyces cerevisiae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract A lipid hydroperoxide-resistant mutant was isolated from a strain ofSaccharomyces cerevisiae. The mutant was resistant to 1.5mm tert-butylhydroperoxide and 1.0mm linoleic acid hydroperoxide. It flocculated in a Ca2+-dependent manner and the resistance against lipid hydroperoxide was suppressed by mannose, which also inhibited flocculation. A positive relationship between the acquirement of, the flocculent phenotype and resistance against lipid hydroperoxide is suggested. A protein with a molecular weight of 33 kDa was found on the surface of the mutant cell.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01201883
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...