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  • 1
    Electronic Resource
    Electronic Resource
    The survey of recent life experiences: A psychometric evaluation (1996)
    Springer
    Journal of behavioral medicine 19 (1996), S. 529-542 
    Details
    ISSN: 1573-3521
    Keywords: hassles ; stress ; adults ; assessment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Psychology
    Notes: Abstract Hitherto, various critics have claimed that the most commonly used measure for daily hassles is confounded with psychological well-being in both content and format. In order to circumvent such contamination, the Survey of Recent Life Experiences (SRLE) was developed by Kohn and MacDonald (1992). In the present study, the SRLE was psychometrically evaluated within a general sample of the Dutch population. Confirmatory factor analysis showed that, with the exception of one item, the original six-factor structure was strongly replicated. For five of six factors, internal consistency reliabilities proved satisfactory. It is argued that the rather low internal consistency reliability of the sixth factor may be improved if additional items are subjoined. In addition, yielded relationships between the SRLE and other variables were in accordance with previous research. It is therefore argued that the results are in support of cross-cultural construct validity of the SRLE. Future use within other Western European societies is recommended.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01904902
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Cold stress response in Archaea (2000)
    Springer
    Extremophiles 4 (2000), S. 321-331 
    Details
    ISSN: 1433-4909
    Keywords: Key words Cold shock ; Low-temperature adaptation ; Psychrophile ; Adaptive mechanisms ; Antarctic Archaea ; Gene expression ; Protein structure ; Review
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract We live on a cold planet where more than 80% of the biosphere is permanently below 5°C, and yet comparatively little is known about the genetics and physiology of the microorganisms inhabiting these environments. Based on molecular probe and sequencing studies, it is clear that Archaea are numerically abundant in diverse low-temperature environments throughout the globe. In addition, non-low-temperature-adapted Archaea are commonly exposed to sudden decreases in temperature, as are other microorganisms, animals, and plants. Considering their ubiquity in nature, it is perhaps surprising to find that there is such a lack of knowledge regarding low-temperature adaptation mechanisms in Archaea, particularly in comparison to what is known about archaeal thermophiles and hyperthermophiles and responses to heat shock. This review covers what is presently known about adaptation to cold shock and growth at low temperature, with a particular focus on Antarctic Archaea. The review highlights the similarities and differences that exist between Archaea and Bacteria and eukaryotes, and addresses the potentially important role that protein synthesis plays in adaptation to the cold. By reviewing the present state of the field, a number of important areas for future research are identified.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s007920070001
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Induction of cardiac angiotensin I-converting enzyme with dietary NaCl-loading in genetically hypertensive and normotensive rats (1995)
    Springer
    Journal of molecular medicine 73 (1995), S. 243-248 
    Details
    ISSN: 1432-1440
    Keywords: Angiotensin I-converting enzyme ; Gene expression ; Sodium chloride ; Heart ; Inbred rats
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We have recently shown that the angiotensin I converting enzyme (ACE) gene is linked to NaCl-loaded blood pressure in the stroke-prone spontaneously hypertensive rat (SHRSP), and that high-NaCl loading selectively stimulates ACE in the aorta of SHRSP but not in normotensive Wistar-Kyoto (WKY) rats. We therefore investigated the relationship between cardiac ACE and the development of hypertension and left ventricular hypertrophy in response to normal- and high-NaCl diet in these rats. ACE mRNA and ACE activity were measured in left ventricular tissue after completion of hemodynamic characterization of the animals. While SHRSP rats increased blood pressure (P〈0.0001) and heart rate (P〈0.005) in response to high NaCl, blood pressure remained unchanged in WKY. Similarly, relative left ventricular weight increased only in SHRSP after high NaCl (P〈0.002). A significant two- to threefold increase of cardiac ACE mRNA and fourfold stimulation of ACE enzyme activity in response to high NaCl was found in both WKY and SHRSP rats (P〈0.005). The induction of ACE gene expression was significantly more pronounced in SHRSP compared to WKY (P〈0.02), whereas no significant strain differences in left ventricular ACE activity were found after either normal- or high-NaCl diet. Thus, arterial blood pressure and left ventricular weight remained unchanged in the WKY rats despite the activation of left ventricular ACE activity after high-NaCl exposure. These results demonstrate that left ventricular ACE activity is equally upregulated in response to high-NaCl in the normotensive and hypertensive strain, independently from the development of hypertension. We conclude that the pretranslational induction of left ventricular ACE with high-NaCl loading may be important both for the regulation of cardiac angiotensins and kinins and for local therapeutic ACE inhibition in the heart during high-salt status.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00189924
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Plasma-membrane H+-ATPase gene expression is regulated by NaCl in cells of the halophyte Atriplex nummularia L. (1993)
    Springer
    Planta 190 (1993), S. 433-438 
    Details
    ISSN: 1432-2048
    Keywords: Atriplex ; Gene expression ; NaCl regulation ; Halophyte ; Plasma-membrane H+-ATPase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract An Atriplex nummularia L. cDNA probe encoding the partial sequence of an isoform of the plasma-membrane H+ -ATPase was isolated, and used to characterize the NaCl regulation of mRNA accumulation in cultured cells of this halophyte. The peptide (447 amino acids) translated from the open reading frame has the highest sequence homology to the Nicotiana plumbaginifolia plasma-membrane H+-ATPase isoform pma4 (greater than 80% identity) and detected a transcript of approximately 3.7 kb on Northern blots of both total and poly(A)+ RNA. The mRNA levels were comparable in unadapted cells, adapted cells (cells adapted to and growing in 342 mM NaCl) and deadapted cells (cells previously adapted to 342 mM NaCl that are now growing without salt). Increased mRNA abundance was detected in deadapted cells within 24 h after exposure to NaCl but not in unadapted cells with similar salt treatments. The NaCl up-regulation of message abundance in deadapted cells was subject to developmental control. Analogous to those reported for glycophytes, the plasma-membrane H+-ATPase are encoded by a multigene family in the halophyte.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00224780
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    The Inventory of College Students' Recent Life Experiences: A decontaminated hassles scale for a special population (1990)
    Springer
    Journal of behavioral medicine 13 (1990), S. 619-630 
    Details
    ISSN: 1573-3521
    Keywords: hassles ; stress ; college students ; measurement
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Psychology
    Notes: Abstract The development and validation of a new decontaminated hassles measure, the Inventory of College Students' Recent Life Experiences, are described. An initial pool of 85 items was administered to 100 undergraduates along with the Perceived Stress Scale. Forty-nine items were selected based on significant correlations against the Perceived Stress Scale. The alpha reliability of the resultant final form of the Inventory of College Students' Recent Life Experiences and its correlation against the Perceived Stress Scale were both high. In a separate cross-replication sample of 108 undergraduates, the alpha reliability of the Inventory and its correlation against the Perceived Stress Scale showed little shrinkage. Furthermore, separate analyses for male and female subjects supported the reliability and validity of the Inventory of College Students' Recent Life Experiences across gender. Factor analysis of the Inventory yielded seven interpretable factors. Intercorrelations among subscales based on these factors were generally modest, though in all cases significant, suggesting that the Inventory is relatively free of contamination by psychological distress.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00844738
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  • 6
    Electronic Resource
    Electronic Resource
    The Survey of Recent Life Experiences: A decontaminated hassles scale for adults (1992)
    Springer
    Journal of behavioral medicine 15 (1992), S. 221-236 
    Details
    ISSN: 1573-3521
    Keywords: hassles ; stress ; adults ; measurement
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Psychology
    Notes: Abstract A new decontaminated hassles measure for adults, the Survey of Recent Life Experiences, was developed and validated. An initial pool of 92 items was administered to 100 subjects along with the Perceived Stress Scale. Fifty-one items were selected, based on significant correlations with the latter scale. The alpha reliability of the resultant final form of the Survey of Recent Life Experiences and its correlation with perceived stress were both high. In a separate cross-replication sample of 136 adults, the alpha reliability of the Survey and its correlation against the Perceived Stress Scale remained acceptably high. Moreover, separate-sex analyses supported the reliability and validity of the Survey of Recent Life Experiences across gender. Factor analysis of the Survey yielded six interpretable factors. Intercorrelations among subscales based on these factors were generally modest, suggesting that the scale is relatively free from contamination by psychological distress.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00848327
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Stress, depression, and anxiety predict average symptom severity and daily symptom fluctuation in systemic lupus erythematosus (1994)
    Springer
    Journal of behavioral medicine 17 (1994), S. 459-477 
    Details
    ISSN: 1573-3521
    Keywords: lupus ; stress ; depression ; anxiety ; anger
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Psychology
    Notes: Abstract Forty-one subjects diagnosed with systemic lupus erythematosus (SLE) were recruited from across the United States. Regressions were conducted to evaluate the relation among stress, depression, anxiety, anger, and SLE symptom complaints. Negative weighting of major life events predicted symptom history. Significant hierarchical regressions using negative weighting of major life events, impact of daily stress, depression, anxiety, and anger were found for severity of joint pain, abdominal distress, and rash. Analyses using 1-day-lagged predictors yielded similar results. Within-subject analyses suggested that there was much individual variability in the strength of the stress-illness relation. Thus, some individuals appeared to be stress responders, while others did not. Findings for impact of minor life events and depression were consistent across the different levels of analyses. It was concluded that stress, depression, anxiety, and anger are associated with, and may exacerbate, self-reported symptomatology of SLE patients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01857920
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    Paper (German National Licenses)
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