| 1. |
- Lichtenberg, Elinor M., et al.
(författare)
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A global synthesis of the effects of diversified farming systems on arthropod diversity within fields and across agricultural landscapes
- 2017
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Ingår i: Global Change Biology. - : Wiley. - 1354-1013 .- 1365-2486. ; 23:11, s. 4946-4957
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Tidskriftsartikel (refereegranskat)abstract
- Agricultural intensification is a leading cause of global biodiversity loss, which can reduce the provisioning of ecosystem services in managed ecosystems. Organic farming and plant diversification are farm management schemes that may mitigate potential ecological harm by increasing species richness and boosting related ecosystem services to agroecosystems. What remains unclear is the extent to which farm management schemes affect biodiversity components other than species richness, and whether impacts differ across spatial scales and landscape contexts. Using a global metadataset, we quantified the effects of organic farming and plant diversification on abundance, local diversity (communities within fields), and regional diversity (communities across fields) of arthropod pollinators, predators, herbivores, and detritivores. Both organic farming and higher in-field plant diversity enhanced arthropod abundance, particularly for rare taxa. This resulted in increased richness but decreased evenness. While these responses were stronger at local relative to regional scales, richness and abundance increased at both scales, and richness on farms embedded in complex relative to simple landscapes. Overall, both organic farming and in-field plant diversification exerted the strongest effects on pollinators and predators, suggesting these management schemes can facilitate ecosystem service providers without augmenting herbivore (pest) populations. Our results suggest that organic farming and plant diversification promote diverse arthropod metacommunities that may provide temporal and spatial stability of ecosystem service provisioning. Conserving diverse plant and arthropod communities in farming systems therefore requires sustainable practices that operate both within fields and across landscapes.
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| 2. |
- Djurberg, C, et al.
(författare)
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Magnetic relaxation phenomena in a CuMn spin glass
- 1999
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Ingår i: EUROPEAN PHYSICAL JOURNAL B. - : SPRINGER VERLAG. - 1434-6028. ; 10:1, s. 15-21
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Tidskriftsartikel (refereegranskat)abstract
- Experiments on the temperature and time dependence of the response function and the field cooled magnetisation of a Cu(Mn) spin glass at temperatures below the zero field spin glass temperature are used to explore the non-equilibrium nature of the underly
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| 4. |
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| 5. |
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| 6. |
- Jonason, K, et al.
(författare)
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Dynamical studies of the response function in a spin glass
- 2000
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Ingår i: PHYSICA B. - : ELSEVIER SCIENCE BV. - 0921-4526. ; 279:4, s. 334-340
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Tidskriftsartikel (refereegranskat)abstract
- Experiments on the time dependence of the response function of a Ag(ll at% Mn) spin glass at a temperature below the zero-field spin glass temperature are used to explore the non-equilibrium nature of the spin glass phase. It is found that the response fu
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| 7. |
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| 8. |
- Jonason, K, et al.
(författare)
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Memory interference effects in spin glasses
- 2000
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Ingår i: EUROPEAN PHYSICAL JOURNAL B. - : SPRINGER VERLAG. - 1434-6028. ; 13:1, s. 99-105
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Tidskriftsartikel (refereegranskat)abstract
- When a spin glass is cooled down, a memory of the cooling process is imprinted in the spin structure. This memory can be disclosed in a continuous heating measurement of the ac-susceptibility. E.g., if a continuous cooling process is intermittently halted
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| 9. |
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| 10. |
- Jonason, K, et al.
(författare)
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Sensitivity to temperature perturbations of the aging states in a re-entrant ferromagnet
- 1999
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Ingår i: EUROPEAN PHYSICAL JOURNAL B. - : SPRINGER VERLAG. - 1434-6028. ; 10:1, s. 23-28
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Tidskriftsartikel (refereegranskat)abstract
- Dynamic magnetic properties and ageing phenomena of the re-entrant ferromagnet (Feo.Ni-20(0.80))(75)P16B6Al3 are investigated by time dependent zero field cooled magnetic relaxation, m(t), measurements. The influence of a temperature cycling (perturbation
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| 11. |
- Jonason, Peter K., et al.
(författare)
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Country-level correlates of the Dark Triad traits in 49 countries
- 2020
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Ingår i: Journal of personality. - : Wiley. - 0022-3506 .- 1467-6494. ; 88:6, s. 1252-1267
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: The Dark Triad traits (i.e., narcissism, psychopathy, Machiavellianism) capture individual differences in aversive personality to complement work on other taxonomies, such as the Big Five traits. However, the literature on the Dark Triad traits relies mostly on samples from English-speaking (i.e., Westernized) countries. We broadened the scope of this literature by sampling from a wider array of countries.Method: We drew on data from 49 countries (N = 11,723; 65.8% female;Age(Mean) = 21.53) to examine how an extensive net of country-level variables in economic status (e.g., Human Development Index), social relations (e.g., gender equality), political orientations (e.g., democracy), and cultural values (e.g., embeddedness) relate to country-level rates of the Dark Triad traits, as well as variance in the magnitude of sex differences in them.Results: Narcissism was especially sensitive to country-level variables. Countries with more embedded and hierarchical cultural systems weremorenarcissistic. Also, sex differences in narcissism werelargerinmoredeveloped societies: Women were less likely to be narcissistic in developed (vs. less developed) countries.Conclusions: We discuss the results based on evolutionary and social role models of personality and sex differences. That higher country-level narcissism was more common in less developed countries, whereas sex differences in narcissism were larger in more developed countries, is more consistent with evolutionary than social role models.
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| 12. |
- Jonsson, T, et al.
(författare)
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Nonequilibrium dynamics in a three-dimensional spin glass
- 1999
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Ingår i: PHYSICAL REVIEW B-CONDENSED MATTER. - 0163-1829. ; 59:13, s. 8770-8777
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Tidskriftsartikel (refereegranskat)abstract
- Nonequilibrium dynamics in a AE(11% Mn) spin glass has been studied by low frequency ac-susceptibility and magnetic relaxation experiments. The results unequivocally show that spin structures that memorize the cooling process are imprinted in the system.
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| 13. |
- Jonsson, T, et al.
(författare)
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Relaxation of the field-cooled magnetization of an Ising spin glass
- 1999
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Ingår i: PHYSICAL REVIEW B-CONDENSED MATTER. - : AMERICAN PHYSICAL SOC. - 0163-1829. ; 59:14, s. 9402-9407
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Tidskriftsartikel (refereegranskat)abstract
- The time and temperature dependence of the field-cooled magnetization of a three-dimensional Ising spin glass Fe0.5Mn0.5TiO3 has been investigated. The temperature and cooling rate dependence is found to exhibit memory phenomena that can be related to the
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| 14. |
- Kajonius, Petri, et al.
(författare)
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Achievement, Power, and Hedonism : Universal Values that Characterize the Dark Triad
- 2015
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Ingår i: Personality and Individual Differences. - : Elsevier BV. - 0191-8869 .- 1873-3549. ; 77, s. 173-178
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Tidskriftsartikel (refereegranskat)abstract
- Using a sample of Swedes and Americans (N = 385), we attempted to understand the Dark Triad traits (i.e., Machiavellianism, narcissism, and psychopathy) in terms of the universal social values. The Dark Triad traits correlated significantly with all 10 value types, forming a sinusoid pattern corresponding to the value model circumplex. In regression analyses, Machiavellianism and narcissism were positively associated with the values Achievement and Power, while psychopathy was positively associated with the values Hedonism, and Power. In addition, the Dark Triad traits explained significant variance over the Big Five traits in accounting for individual differences in social values. Differences between the Swedish and the US sample in the social value Achievement was mediated by the Dark Triad traits, as well as age. Given the unique complex of values accounted for by the Dark Triad traits compared to the Big Five traits, we argue that the former account for a system of self-enhancing “dark values”, often hidden but constantly contributing in evaluations of others.
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| 15. |
- Kajonius, Petri J., et al.
(författare)
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Hedonism, Achievement, and Power: Universal values that characterize the Dark Triad
- 2015
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Ingår i: Personality and Individual Differences. - : Elsevier BV. - 0191-8869 .- 1873-3549. ; 77, s. 173-178
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Tidskriftsartikel (refereegranskat)abstract
- © 2015 Elsevier Ltd. Using a sample of Swedes and Americans (N= 385), we attempted to understand the Dark Triad traits (i.e., Machiavellianism, narcissism, and psychopathy) in terms of universal social values. The Dark Triad traits correlated significantly with all 10 value types, forming a sinusoid pattern corresponding to the value model circumplex. In regression analyses, Machiavellianism and narcissism were positively associated with the values Achievement and Power, while psychopathy was positively associated with the values Hedonism, and Power. In addition, the Dark Triad traits explained significant variance over the Big Five traits in accounting for individual differences in social values. Differences between the Swedish and the US sample in the social value Achievement was mediated by the Dark Triad traits, as well as age. Given the unique complex of values accounted for by the Dark Triad traits compared to the Big Five traits, we argue that the former account for a system of self-enhancing "dark values", often hidden but constantly contributing in evaluations of others.
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| 16. |
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| 17. |
- Nam, DNH, et al.
(författare)
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Coexistence of ferromagnetic and glassy behavior in the La0.5Sr0.5CoO3 perovskite compound
- 1999
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Ingår i: PHYSICAL REVIEW B-CONDENSED MATTER. - : AMERICAN PHYSICAL SOC. - 0163-1829. ; 59:6, s. 4189-4194
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Tidskriftsartikel (refereegranskat)abstract
- Dc magnetization, ac susceptibility, and zero-field-cooled relaxation measurements are carried out for a cluster glass compound of La0.5Sr0.5CoO3. The temperature dependence of the magnetic properties could be distinguished into two regimes: a high-temper
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| 18. |
- Rogoza, Radoslaw, et al.
(författare)
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Structure of Dark Triad Dirty Dozen Across Eight World Regions
- 2021
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Ingår i: Assessment (Odessa, Fla.). - : SAGE Publications. - 1073-1911 .- 1552-3489. ; 28:4, s. 1125-1135
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Tidskriftsartikel (refereegranskat)abstract
- The Dark Triad (i.e., narcissism, psychopathy, Machiavellianism) has garnered intense attention over the past 15 years. We examined the structure of these traits' measure-the Dark Triad Dirty Dozen (DTDD)-in a sample of 11,488 participants from three W.E.I.R.D. (i.e., North America, Oceania, Western Europe) and five non-W.E.I.R.D. (i.e., Asia, Middle East, non-Western Europe, South America, sub-Saharan Africa) world regions. The results confirmed the measurement invariance of the DTDD across participants' sex in all world regions, with men scoring higher than women on all traits (except for psychopathy in Asia, where the difference was not significant). We found evidence for metric (and partial scalar) measurement invariance within and between W.E.I.R.D. and non-W.E.I.R.D. world regions. The results generally support the structure of the DTDD.
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| 19. |
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