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
  • 1
    Electronic Resource
    Electronic Resource
    Timing of the occurrence of frost cracks in winter (1996)
    Springer
    Trees 11 (1996), S. 47-53 
    Details
    ISSN: 0931-1890
    Keywords: Key words Frost crack ; Low temperature ; Freezing
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract  In order to determine the timing of the occurrence of frost cracks, as well as to evaluate the climatic conditions associated with such occurrences, study plots were established in late autumn and early winter. Serial observations were made to identify both the occurrence of new frost cracks and the re-opening of old frost cracks in trees in the study plots until mid-winter or early spring. Field observations were conducted for three winter seasons in different study plots. Most old frost cracks were found to re-open in early winter. However, such re-opening did not occur simultaneously within a very limited period of time, for example, within a single day or night, when air temperature fell suddenly or considerably. Re-opening seemed to occur steadily over the course of several days of continuous subzero temperatures. It has been suggested that freezing of the trunk contributes considerably to the re-opening of old frost cracks. Four frost cracks from 1002 trees were newly formed during the course of this study. The new frost cracks developed both in early winter and mid-winter. It has been suggested that new frost cracks can occur during the same period when most old frost cracks re-open and the air temperature does not fall far below 0°C. However, it remains unclear whether or not there is a tendency for new frost cracks to occur during a particular period.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004680050057
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Aminophlline is effective on acute exacerbations of asthma in adults–objective improvements in peak flow, spirogram, arterial blood gas measurements and lung sounds (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 26 (1996), S. 0 
    Details
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2222.1996.tb01141.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
    Effects of the two most common Wx alleles on different genetic backgrounds in rice (2000)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 119 (2000), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Wxa and Wxb are the most common alleles of the Wx gene in Asian cultivated rice. The difference between them is responsible for differences in the levels of the Wx gene product in the endosperm, as well as in amylose content, which is an important determinant of the quality of edible rice. Since Indica rice mostly carries the Wxa allele, we introduced the Wxb allele into Indica-type rice (IR36) from a Japonica-type rice (T65) by repeated backcrossing. In the near-isogenic line (IR36 Wxb), the level of the Wx gene product was reduced and, as expected, the level of amylose. However, IR36Wxb had a lower amylose content than the recurrent parent of T65 with the Wxb allele. The results suggest that the Indica (IR36) background might lower the amylose content more than the Japonica (T65) background when the Wx allele is the same. The possible importance of modifiers that regulate expression of the Wx gene is also discussed in relation to improvements in the grain quality of rice.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1439-0523.2000.00533.x
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Increased levels of a TH2-type CC chemokine thymus and activation-regulated chemokine (TARC) in serum and induced sputum of asthmatics (2002)
    Copenhagen : Munksgaard International Publishers
    Allergy 57 (2002), S. 0 
    Details
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background: Cytokines liberated by TH2 cells play crucial roles in the pathogenesis of bronchial asthma. Recent studies have demonstrated that CC chemokine receptor (CCR)4 is preferentially expressed by TH2 cells. These facts suggest possible involvement of two CCR4-specific ligands i.e., thymus and activation-regulated chemokine (TARC) and macrophage-derived chemokine (MDC), in the pathogenesis of bronchial asthma via recruitment of TH2 cells to inflammatory sites. We investigated the levels of TARC and MDC in the serum and induced sputum of asthmatics. Methods: The levels of TARC in the serum (46 asthmatics and 26 healthy subjects) and induced sputum (30 asthmatics and 6 healthy subjects) were measured using a highly sensitive ELISA system. The levels of eotaxin and MDC were also measured by ELISA. Results: TARC, but not MDC, was significantly increased in asthmatic sera (P〈0.001). Although MDC was undetectable in the sputum of most cases by our assay system, sputum TARC was significantly increased (P=0.027). Conclusions: The elevated TARC levels in asthmatics might be involved in the pathophysiology of asthma.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1034/j.1398-9995.2002.1s3256.x
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Eotaxin in induced sputum of asthmatics: relationship with eosinophils and eosinophil cationic protein in sputum (2000)
    Copenhagen : Munksgaard International Publishers
    Allergy 55 (2000), S. 0 
    Details
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background: Eosinophilic inflammation is a crucial aspect of allergic diseases such as bronchial asthma. An eosinophil-active chemokine, eotaxin, may play a role in the pathogenesis of the tissue eosinophilia accompanying asthma. Methods: Induced sputa were obtained from 53 patients with atopic asthma and six healthy subjects, and the concentration of eotaxin in the sputum was measured by ELISA. We investigated whether the sputum content of eotaxin is related to 1) asthma status or corticosteroid therapy, and 2) other sputum indices, including percentage of eosinophils and concentration of eosinophil cationic protein (ECP). Results: The patients with stable or unstable asthma showed significantly higher concentrations of sputum eotaxin than the normal controls. The level of sputum eotaxin demonstrated a positive correlation with the percentage of eosinophils in stable asthmatics not receiving corticosteroid therapy, but not in stable patients treated with corticosteroids, or in unstable patients. Sputum eotaxin demonstrated a positive correlation with ECP in asthmatic patients who were either in a stable state or not receiving steroid therapy. Conclusions: The elevated level of eotaxin detected in association with increased eosinophils and ECP in the sputum of asthmatics suggests that eotaxin is involved in the pathogenesis of eosinophilic airway inflammation. The relationship of eotaxin to airway eosinophilia may be modified by the stability status of asthma and corticosteroid therapy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1034/j.1398-9995.2000.00474.x
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Ribosomal DNAs: an exception to the conservation of gene order in rice genomes (2000)
    Springer
    Molecular genetics and genomics 263 (2000), S. 586-591 
    Details
    ISSN: 1617-4623
    Keywords: Key words rDNA locus ; Fluorescence in situ hybridization (FISH) ; Genus Oryza ; Comparative genomics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract rDNA (18S-5.8S-25S rDNA) and 5S rDNA loci were visualized on the chromosomes of six species of the genus Oryza by fluorescence in situ hybridization (FISH) and the labeled rice chromosomes were identified based on their condensation patterns. As a result, the chromosomes harboring rDNA and/or 5S rDNA loci were determined in the complement for all the known rice genomes. Variation in the location of the rDNA loci indicated the transpositional nature of the rDNAs in the genus Oryza, as also suggested in Triticeae and Allium. Comparative analysis of the locations of rDNA loci among rice, maize and wheat revealed that variability in the physical location of the rDNA loci was characteristic of the genus Oryza and also of the genera of Gramineae. This variability in the location of the rDNA loci between evolutionarily related species is in sharp contrast to the conservation of the general order of genes in their genomes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004380051205
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    High Performance AlGaN/GaN HEMTs with Recessed Gate (2002)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 389-393 (Apr. 2002), p. 1511-1514 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/06/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.389-393.1511.pdf
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Dissection of a major QTL for photoperiod sensitivity in rice: its association with a gene expressed in an age-dependent manner (1998)
    Springer
    Theoretical and applied genetics 97 (1998), S. 714-720 
    Details
    ISSN: 1432-2242
    Keywords: Key words Oryza sativa L. ; Photoperiod-sensitivity genes ; Quantitative traits ; Gene complex ; Wild rice
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  A proposed major quantitative trait locus (QTL) for photoperiod sensitivity on chromosome 6 in rice was examined by introducing a chromosomal segment from a sensitive line into an insensitive one. The crossing experiments showed that a range of variation in heading date occurred in the later generations and that the region might contain at least a major gene and two additional recessive genes controlling photoperiod sensitivity. Gene mapping experiments showed that the major gene was Se-1 and that a recessive gene (tentatively named se-pat) was loosely linked to it. The responses to photoperiods were examined among the different genotypes under natural and controlled conditions. The two genes acted additively on the degree of photoperiod sensitivity. However, se-pat plants showed a response to photoperiods that differed from that of the other sensitive lines; a short-day treatment at the seedling stage delayed heading in the former plants, suggesting that the manner of its expression was age-dependent. A recessive gene similar to se-pat seemed to be widely distributed in wild and cultivated rice, suggesting that the gene complex in the region plays a significant role in response to photoperiod.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220050947
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Structural differences in the vicinity of the waxy locus among the Oryza species with the AA-genome: identification of variable regions (2000)
    Springer
    Theoretical and applied genetics 100 (2000), S. 376-383 
    Details
    ISSN: 1432-2242
    Keywords: Key words AA-genome ; BAC clone ; Oryza species ; The waxy locus ; Variable regions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  We constructed a fine physical map for a 260-kb rice BAC contig surrounding the waxy locus. In order to identify variable regions within this 260-kb as to the restriction fragments length polymorphisms and copy numbers, sixty overlapping fragments derived from the 260-kb contig were used as probes to compare their corresponding structures among the Oryza species with AA-genome. According to the hybridization patterns, each fragment was classified into four types; true single copy (class 1), single copy with a smear background (class 2), multiple copy without a smear background (class 3), and only a smear background (class 4). Out of 16 single copy (class 1 and class 2) regions obtained in this map, the one site corresponding to wx gave rise to remarkable polymorphisms among AA-genome species in Oryza. In most of the fragments observed as repetitive segments (class 4), we could not find obvious differences in the hybridization pattern. However, interestingly, one site sorted into class-3 showed copy numbers varying among the lines. The lines belonging to O. sativa O. rufipogon, O. meridionalis,and O. longistaminata possessed high-copy numbers of this fragment, whereas only a few bands were detected in the lines from O. glaberrima, O. barthii, and O. glumaepatula. The two variable regions found within the AA-genome species represented genomic dynamisms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220050049
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Freezing behavior of xylem ray parenchyma cells in softwood species with differences in the organization of cell walls (1999)
    Springer
    Protoplasma 206 (1999), S. 31-40 
    Details
    ISSN: 1615-6102
    Keywords: Freezing tolerance ; Xylem ray parenchyma cells ; Cell wall ultrastructure ; Supercooling ; Cryo-scanning electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary By cryo-scanning electron microscopy we examined the effects of the organization of the cell walls of xylem ray parenchyma cells on freezing behavior, namely, the capacity for supercooling and extracellular freezing, in various softwood species. Distinct differences in organization of the cell wall were associated with differences in freezing behavior. Xylem ray parenchyma cells with thin, unlignified primary walls in the entire region (all cells inSciadopitys verticillata and immature cells inPinus densiflora) or in most of the region (mature cells inP. densiflora and all cells inP. pariflora var.pentaphylla) responded to freezing conditions by extracellular freezing, whereas xylem ray parenchyma cells with thick, lignified primary walls (all cells inCrytomeria japonica) or secondary walls (all cells inLarix leptolepis) in most regions responded to freezing by supercooling. The freezing behavior of xylem ray parenchyma cells inL. leptolepis changed seasonally from supercooling in summer to extracellular freezing in winter, even though no detectable changes in the organization of cell walls were apparent. These results in the examined softwood species indicate that freezing behavior of xylem ray parenchyma cells changes in parallel not only with clear differences in the organization of cell walls but also with subtle sub-electron-microscopic differences, probably, in the structure of the cell wall.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01279251
    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...