| 1. |
- Thomas, HS, et al.
(författare)
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- 2019
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swepub:Mat__t
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| 2. |
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| 3. |
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| 4. |
- Aaltonen, T., et al.
(författare)
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Tevatron Run II combination of the effective leptonic electroweak mixing angle
- 2018
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Ingår i: Physical Review D. - : AMER PHYSICAL SOC. - 2470-0010 .- 2470-0029. ; 97:11
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Tidskriftsartikel (refereegranskat)abstract
- Drell-Yan lepton pairs produced in the process p (p) over bar -> l(+)l(-) + X through an intermediate gamma*/Z boson have an asymmetry in their angular distribution related to the spontaneous symmetry breaking of the electroweak force and the associated mixing of its neutral gauge bosons. The CDF and D0 experiments have measured the effective-leptonic electroweak mixing parameter sin(2) theta(lept)(eff) using electron and muon pairs selected from the full Tevatron proton-antiproton data sets collected in 2001-2011, corresponding to 9-10 fb(-1) of integrated luminosity. The combination of these measurements yields the most precise result from hadron colliders, sin(2)theta(lept)(eff) = 0.23148 +/- 0.00033. This result is consistent with, and approaches in precision, the best measurements from electron-positron colliders. The standard model inference of the on-shell electroweak mixing parameter sin(2) theta(W), or equivalently the W-boson mass M-W, using the ZFITTER software package yields sin(2) theta(W) = 0.22324 +/- 0.00033 or equivalently, M-W = 80.367 +/- 0.017 GeV/c(2).
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| 5. |
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| 6. |
- Aaltonen, T., et al.
(författare)
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Combined Forward-Backward Asymmetry Measurements in Top-Antitop Quark Production at the Tevatron
- 2018
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Ingår i: Physical Review Letters. - : AMER PHYSICAL SOC. - 0031-9007 .- 1079-7114. ; 120:4
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Tidskriftsartikel (refereegranskat)abstract
- The CDF and D0 experiments at the Fermilab Tevatron have measured the asymmetry between yields of forward- and backward-produced top and antitop quarks based on their rapidity difference and the asymmetry between their decay leptons. These measurements use the full data sets collected in proton-antiproton collisions at a center-of-mass energy of root s = 1.96 TeV. We report the results of combinations of the inclusive asymmetries and their differential dependencies on relevant kinematic quantities. The combined inclusive asymmetry is A(FB)(t (t) over bar) = 0.128 +/- 0.025. The combined inclusive and differential asymmetries are consistent with recent standard model predictions.
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| 7. |
- Aaltonen, T., et al.
(författare)
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Tevatron Combination of Single-Top-Quark Cross Sections and Determination of the Magnitude of the Cabibbo-Kobayashi-Maskawa Matrix Element V-tb
- 2015
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Ingår i: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 115:15
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Tidskriftsartikel (refereegranskat)abstract
- We present the final combination of CDF and D0 measurements of cross sections for single-top-quark production in proton-antiproton collisions at a center-of-mass energy of 1.96 TeV. The data correspond to total integrated luminosities of up to 9.7 fb(-1) per experiment. The t-channel cross section is measured to be sigma(t) = 2.25(-0.31)(+0.29) pb. We also present the combinations of the two-dimensional measurements of the s- vs t-channel cross section. In addition, we give the combination of the s + t channel cross section measurement resulting in sigma(s+t) = 3.30(-0.40)(+0.52) pb, without assuming the standard model value for the ratio sigma(s)/sigma(t). The resulting value of the magnitude of the top-to-bottom quark coupling is vertical bar V-tb vertical bar = 1.02(-0.05)(+0.06), corresponding to vertical bar V-tb vertical bar > 0.92 at the 95% C. L.
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| 8. |
- Aaltonen, T., et al.
(författare)
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Tevatron Constraints on Models of the Higgs Boson with Exotic Spin and Parity Using Decays to Bottom-Antibottom Quark Pairs
- 2015
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Ingår i: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 114:15
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Tidskriftsartikel (refereegranskat)abstract
- Combined constraints from the CDF and D0 Collaborations on models of the Higgs boson with exotic spin J and parity P are presented and compared with results obtained assuming the standard model value J(P) = 0(+). Both collaborations analyzed approximately 10 fb(-1) of proton-antiproton collisions with a center-of-mass energy of 1.96 TeV collected at the Fermilab Tevatron. Two models predicting exotic Higgs bosons with J(P) = 0(-) and J(P) = 2(+) are tested. The kinematic properties of exotic Higgs boson production in association with a vector boson differ from those predicted for the standard model Higgs boson. Upper limits at the 95% credibility level on the production rates of the exotic Higgs bosons, expressed as fractions of the standard model Higgs boson production rate, are set at 0.36 for both the J(P) = 0(-) hypothesis and the J(P) = 2(+) hypothesis. If the production rate times the branching ratio to a bottom-antibottom pair is the same as that predicted for the standard model Higgs boson, then the exotic bosons are excluded with significances of 5.0 standard deviations and 4.9 standard deviations for the J(P) = 0(-) and J(P) = 2(+) hypotheses, respectively.
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| 9. |
- Aartsen, M. G., et al.
(författare)
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Search for nonstandard neutrino interactions with IceCube DeepCore
- 2018
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Ingår i: Physical Review D. - : AMER PHYSICAL SOC. - 2470-0010 .- 2470-0029. ; 97:7
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Tidskriftsartikel (refereegranskat)abstract
- As atmospheric neutrinos propagate through the Earth, vacuumlike oscillations are modified by Standard Model neutral-and charged-current interactions with electrons. Theories beyond the Standard Model introduce heavy, TeV-scale bosons that can produce nonstandard neutrino interactions. These additional interactions may modify the Standard Model matter effect producing a measurable deviation from the prediction for atmospheric neutrino oscillations. The result described in this paper constrains nonstandard interaction parameters, building upon a previous analysis of atmospheric muon-neutrino disappearance with three years of IceCube DeepCore data. The best fit for the muon to tau flavor changing term is epsilon(mu tau) = -0.0005, with a 90% C.L. allowed range of -0.0067 < epsilon(mu tau) < 0.0081. This result is more restrictive than recent limits from other experiments for.mu t. Furthermore, our result is complementary to a recent constraint on epsilon(mu tau) using another publicly available IceCube high-energy event selection. Together, they constitute the world's best limits on nonstandard interactions in the mu - tau sector.
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| 10. |
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| 11. |
- Hudson, Lawrence N, et al.
(författare)
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The database of the PREDICTS (Projecting Responses of Ecological Diversity In Changing Terrestrial Systems) project
- 2017
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Ingår i: Ecology and Evolution. - : John Wiley & Sons. - 2045-7758. ; 7:1, s. 145-188
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Tidskriftsartikel (refereegranskat)abstract
- The PREDICTS project-Projecting Responses of Ecological Diversity In Changing Terrestrial Systems (www.predicts.org.uk)-has collated from published studies a large, reasonably representative database of comparable samples of biodiversity from multiple sites that differ in the nature or intensity of human impacts relating to land use. We have used this evidence base to develop global and regional statistical models of how local biodiversity responds to these measures. We describe and make freely available this 2016 release of the database, containing more than 3.2 million records sampled at over 26,000 locations and representing over 47,000 species. We outline how the database can help in answering a range of questions in ecology and conservation biology. To our knowledge, this is the largest and most geographically and taxonomically representative database of spatial comparisons of biodiversity that has been collated to date; it will be useful to researchers and international efforts wishing to model and understand the global status of biodiversity.
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| 12. |
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| 13. |
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| 14. |
- Nicolas, Aude, et al.
(författare)
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Genome-wide Analyses Identify KIF5A as a Novel ALS Gene
- 2018
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Ingår i: Neuron. - : Cell Press. - 0896-6273 .- 1097-4199. ; 97:6, s. 1268-1283.e6
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Tidskriftsartikel (refereegranskat)abstract
- To identify novel genes associated with ALS, we undertook two lines of investigation. We carried out a genome-wide association study comparing 20,806 ALS cases and 59,804 controls. Independently, we performed a rare variant burden analysis comparing 1,138 index familial ALS cases and 19,494 controls. Through both approaches, we identified kinesin family member 5A (KIF5A) as a novel gene associated with ALS. Interestingly, mutations predominantly in the N-terminal motor domain of KIF5A are causative for two neurodegenerative diseases: hereditary spastic paraplegia (SPG10) and Charcot-Marie-Tooth type 2 (CMT2). In contrast, ALS-associated mutations are primarily located at the C-terminal cargo-binding tail domain and patients harboring loss-of-function mutations displayed an extended survival relative to typical ALS cases. Taken together, these results broaden the phenotype spectrum resulting from mutations in KIF5A and strengthen the role of cytoskeletal defects in the pathogenesis of ALS.
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| 15. |
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| 16. |
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| 17. |
- Alampay, Liane Pena, et al.
(författare)
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Severity and justness do not moderate the relation between corporal punishment and negative child outcomes : A multicultural and longitudinal study
- 2017
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Ingår i: International Journal of Behavioral Development. - : SAGE Publications. - 0165-0254 .- 1464-0651. ; 41:4, s. 491-502
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Tidskriftsartikel (refereegranskat)abstract
- There is strong evidence of a positive association between corporal punishment and negative child outcomes, but previous studies have suggested that the manner in which parents implement corporal punishment moderates the effects of its use. This study investigated whether severity and justness in the use of corporal punishment moderate the associations between frequency of corporal punishment and child externalizing and internalizing behaviors. This question was examined using a multicultural sample from eight countries and two waves of data collected one year apart. Interviews were conducted with 998 children aged 7–10 years, and their mothers and fathers, from China, Colombia, Italy, Jordan, Kenya, Philippines, Thailand, and the United States. Mothers and fathers responded to questions on the frequency, severity, and justness of their use of corporal punishment; they also reported on the externalizing and internalizing behavior of their child. Children reported on their aggression. Multigroup path models revealed that across cultural groups, and as reported by mothers and fathers, there is a positive relation between the frequency of corporal punishment and externalizing child behaviors. Mother-reported severity and father-reported justness were associated with child-reported aggression. Neither severity nor justness moderated the relation between frequency of corporal punishment and child problem behavior. The null result suggests that more use of corporal punishment is harmful to children regardless of how it is implemented, but requires further substantiation as the study is unable to definitively conclude that there is no true interaction effect.
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| 18. |
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| 19. |
- Lansford, Jennifer E., et al.
(författare)
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Bidirectional Relations Between Parenting and Behavior Problems From Age 8 to 13 in Nine Countries
- 2018
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Ingår i: Journal of research on adolescence. - : Wiley. - 1050-8392 .- 1532-7795. ; 28:3, SI, s. 571-590
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Tidskriftsartikel (refereegranskat)abstract
- This study used data from 12 cultural groups in nine countries (China, Colombia, Italy, Jordan, Kenya, Philippines, Sweden, Thailand, and the United States; N=1,298) to understand the cross-cultural generalizability of how parental warmth and control are bidirectionally related to externalizing and internalizing behaviors from childhood to early adolescence. Mothers, fathers, and children completed measures when children were ages 8-13. Multiple-group autoregressive, cross-lagged structural equationmodels revealed that child effects rather than parent effects may better characterize how warmth and control are related to child externalizing and internalizing behaviors over time, and that parent effects may be more characteristic of relations between parental warmth and control and child externalizing and internalizing behavior during childhood than early adolescence.
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| 20. |
- Lansford, Jennifer E., et al.
(författare)
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How International Research on Parenting Advances Understanding of Child Development
- 2016
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Ingår i: Child Development Perspectives. - : Wiley. - 1750-8592 .- 1750-8606. ; 10:3, s. 202-207
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Tidskriftsartikel (refereegranskat)abstract
- nternational research on parenting and child development can advance our understanding of similarities and differences in how parenting is related to children's development across countries. Challenges to conducting international research include operationalizing culture, disentangling effects within and between countries, and balancing emic and etic perspectives. Benefits of international research include testing whether findings regarding parenting and child development replicate across diverse samples, incorporating cultural and contextual diversity to foster more inclusive and representative research samples and investigators than has typically occurred, and understanding how children develop in proximal parenting and family and distal international contexts.
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| 21. |
- Askmyr, Maria, et al.
(författare)
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Ciliary neurotrophic factor has intrinsic and extrinsic roles in regulating B cell differentiation and bone structure.
- 2015
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Ingår i: Scientific Reports. - : Springer Science and Business Media LLC. - 2045-2322. ; 5
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Tidskriftsartikel (refereegranskat)abstract
- The gp130 receptor and its binding partners play a central role in cytokine signalling. Ciliary neurotrophic factor (CNTF) is one of the cytokines that signals through the gp130 receptor complex. CNTF has previously been shown to be a negative regulator of trabecular bone remodelling and important for motor neuron development. Since haematopoietic cell maintenance and differentiation is dependent on the bone marrow (BM) microenvironment, where cells of the osteoblastic lineage are important regulators, we hypothesised that CNTF may also have important roles in regulating haematopoiesis. Analysis of haematopoietic parameters in male and female Cntf(-/-) mice at 12 and 24 weeks of age revealed altered B lymphopoiesis. Strikingly, the B lymphocyte phenotype differed based on sex, age and also the BM microenvironment in which the B cells develop. When BM cells from wildtype mice were transplanted into Cntf(-/-) mice, there were minimal effects on B lymphopoiesis or bone parameters. However, when Cntf(-/-) BM cells were transplanted into a wildtype BM microenvironment, there were changes in both haematopoiesis and bone parameters. Our data reveal that haematopoietic cell-derived CNTF has roles in regulating BM B cell lymphopoiesis and both trabecular and cortical bone, the latter in a sex-dependent manner.
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| 22. |
- Bornstein, Marc H, et al.
(författare)
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Mixed blessings : parental religiousness, parenting, and child adjustment in global perspective.
- 2017
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Ingår i: Journal of Child Psychology and Psychiatry. - : Wiley. - 0021-9630 .- 1469-7610. ; 58:8, s. 880-892
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Most studies of the effects of parental religiousness on parenting and child development focus on a particular religion or cultural group, which limits generalizations that can be made about the effects of parental religiousness on family life.METHODS: We assessed the associations among parental religiousness, parenting, and children's adjustment in a 3-year longitudinal investigation of 1,198 families from nine countries. We included four religions (Catholicism, Protestantism, Buddhism, and Islam) plus unaffiliated parents, two positive (efficacy and warmth) and two negative (control and rejection) parenting practices, and two positive (social competence and school performance) and two negative (internalizing and externalizing) child outcomes. Parents and children were informants.RESULTS: Greater parent religiousness had both positive and negative associations with parenting and child adjustment. Greater parent religiousness when children were age 8 was associated with higher parental efficacy at age 9 and, in turn, children's better social competence and school performance and fewer child internalizing and externalizing problems at age 10. However, greater parent religiousness at age 8 was also associated with more parental control at age 9, which in turn was associated with more child internalizing and externalizing problems at age 10. Parental warmth and rejection had inconsistent relations with parental religiousness and child outcomes depending on the informant. With a few exceptions, similar patterns of results held for all four religions and the unaffiliated, nine sites, mothers and fathers, girls and boys, and controlling for demographic covariates.CONCLUSIONS: Parents and children agree that parental religiousness is associated with more controlling parenting and, in turn, increased child problem behaviors. However, children see religiousness as related to parental rejection, whereas parents see religiousness as related to parental efficacy and warmth, which have different associations with child functioning. Studying both parent and child views of religiousness and parenting are important to understand the effects of parental religiousness on parents and children.
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| 23. |
- Bornstein, Marc H., et al.
(författare)
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Mother and father socially desirable responding in nine countries : Two kinds of agreement and relations to parenting self-reports
- 2015
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Ingår i: International Journal of Psychology. - : Wiley. - 0020-7594 .- 1464-066X. ; 50:3, s. 174-185
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Tidskriftsartikel (refereegranskat)abstract
- We assessed 2 forms of agreement between mothers’ and fathers’ socially desirable responding in China, Colombia, Italy, Jordan, Kenya, the Philippines, Sweden, Thailand and the United States (N = 1110 families). Mothers and fathers in all 9 countries reported socially desirable responding in the upper half of the distribution, and countries varied minimally (but China was higher than the cross-country grand mean and Sweden lower). Mothers and fathers did not differ in reported levels of socially desirable responding, and mothers’ and fathers’ socially desirable responding were largely uncorrelated. With one exception, mothers’ and fathers’ socially desirable responding were similarly correlated with self-perceptions of parenting, and correlations varied somewhat across countries. These findings are set in a discussion of socially desirable responding, cultural psychology and family systems.
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| 24. |
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| 25. |
- Cantwell, C. D., et al.
(författare)
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Nektar plus plus : An open-source spectral/hp element framework
- 2015
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Ingår i: Computer Physics Communications. - : Elsevier BV. - 0010-4655. ; 192, s. 205-219
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Tidskriftsartikel (refereegranskat)abstract
- Nektar++ is an open-source software framework designed to support the development of high-performance scalable solvers for partial differential equations using the spectral/hp element method. High-order methods are gaining prominence in several engineering and biomedical applications due to their improved accuracy over low-order techniques at reduced computational cost for a given number of degrees of freedom. However, their proliferation is often limited by their complexity, which makes these methods challenging to implement and use. Nektar++ is an initiative to overcome this limitation by encapsulating the mathematical complexities of the underlying method within an efficient C++ framework, making the techniques more accessible to the broader scientific and industrial communities. The software supports a variety of discretisation techniques and implementation strategies, supporting methods research as well as application-focused computation, and the multi-layered structure of the framework allows the user to embrace as much or as little of the complexity as they need. The libraries capture the mathematical constructs of spectral/hp element methods, while the associated collection of pre-written PDE solvers provides out-of-the-box application-level functionality and a template for users who wish to develop solutions for addressing questions in their own scientific domains. Program obtainable from: CPC Program Library, Queen's University, Belfast, N. Ireland No. of lines in distributed program, including test data, etc.: 1052456 No. of bytes in distributed program, including test data, etc.: 42851367 External routines: Boost, PFTW, MPI, BLAS, LAPACK and METIS (www.cs.umn.edu) Nature of problem: The Nektar++ framework is designed to enable the discretisation and solution of time-independent or time-dependent partial differential equations. Running time: The tests provided take a few minutes to run. Runtime in general depends on mesh size and total integration time.
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| 26. |
- Chang, Lei, et al.
(författare)
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Environmental harshness and unpredictability, life history, and social and academic behavior of adolescents in nine countries.
- 2019
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Ingår i: Developmental Psychology. - : American Psychological Association (APA). - 0012-1649 .- 1939-0599. ; 55:4, s. 890-903
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Tidskriftsartikel (refereegranskat)abstract
- Safety is essential for life. To survive, humans and other animals have developed sets of psychological and physiological adaptations known as life history (LH) tradeoff strategies in response to various safety constraints. Evolutionarily selected LH strategies in turn regulate development and behavior to optimize survival under prevailing safety conditions. The present study tested LH hypotheses concerning safety based on a 6-year longitudinal sample of 1,245 adolescents and their parents from 9 countries. The results revealed that, invariant across countries, environmental harshness, and unpredictability (lack of safety) was negatively associated with slow LH behavioral profile, measured 2 years later, and slow LH behavioral profile was negatively and positively associated with externalizing behavior and academic performance, respectively, as measured an additional 2 years later. These results support the evolutionary conception that human development responds to environmental safety cues through LH regulation of social and learning behaviors. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
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| 27. |
- Chang, Lei, et al.
(författare)
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External environment and internal state in relation to life-history behavioural profiles of adolescents in nine countries
- 2019
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Ingår i: Proceedings of the Royal Society of London. Biological Sciences. - : The Royal Society. - 0962-8452 .- 1471-2954. ; 286:1917
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Tidskriftsartikel (refereegranskat)abstract
- The external environment has traditionally been considered as the primary driver of animal life history (LH). Recent research suggests that animals' internal state is also involved, especially in forming LH behavioural phenotypes. The present study investigated how these two factors interact in formulating LH in humans. Based on a longitudinal sample of 1223 adolescents in nine countries, the results show that harsh and unpredictable environments and adverse internal states in childhood are each uniquely associated with fast LH behavioural profiles consisting of aggression, impulsivity, and risk-taking in adolescence. The external environment and internal state each strengthened the LH association of the other, but overall the external environment was more predictive of LH than was the internal state. These findings suggest that individuals rely on a multitude and consistency of sensory information in more decisively calibrating LH and behavioural strategies.
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| 28. |
- Deater-Deckard, Kirby, et al.
(författare)
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Chaos, Danger, and Maternal Parenting in Families : Links with Adolescent Adjustment in Low- and Middle-Income Countries
- 2019
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Ingår i: Developmental Science. - : Wiley. - 1363-755X .- 1467-7687. ; 22:5
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Tidskriftsartikel (refereegranskat)abstract
- The current longitudinal study is the first comparative investigation across Low- and Middle- Income Countries (LMICs) to test the hypothesis that harsher and less affectionate maternal parenting (child age 14 years, on average) statistically mediates the prediction from prior household chaos and neighborhood danger (at 13 years) to subsequent adolescent maladjustment (externalizing, internalizing, and school performance problems at 15 years). The sample included 511 urban families in six LMICs: China, Colombia, Jordan, Kenya, the Philippines, and Thailand. Multigroup structural equation modeling showed consistent associations between chaos, danger, affectionate and harsh parenting, and adolescent adjustment problems. There was some support for the hypothesis, with nearly all countries showing a modest indirect effect of maternal hostility (but not affection) for adolescent externalizing, internalizing, and scholastic problems. Results provide further evidence that chaotic home and dangerous neighborhood environments increase risk for adolescent maladjustment in LMIC contexts, via harsher maternal parenting. This article is protected by copyright. All rights reserved.
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| 29. |
- Deater-Deckard, Kirby, et al.
(författare)
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Within- and between-person and group variance in behavior and beliefs in cross-cultural longitudinal data
- 2018
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Ingår i: Journal of Adolescence. - : Wiley. - 0140-1971 .- 1095-9254. ; 62, s. 207-217
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Tidskriftsartikel (refereegranskat)abstract
- Abstract This study grapples with what it means to be part of a cultural group, from a statistical modeling perspective. The method we present compares within- and between-cultural group variability, in behaviors in families. We demonstrate the method using a cross-cultural study of adolescent development and parenting, involving three biennial waves of longitudinal data from 1296 eight-year-olds and their parents (multiple cultures in nine countries). Family members completed surveys about parental negativity and positivity, child academic and social-emotional adjustment, and attitudes about parenting and adolescent behavior. Variance estimates were computed at the cultural group, person, and within-person level using multilevel models. Of the longitudinally consistent variance, most was within and not between cultural groups—although there was a wide range of between-group differences. This approach to quantifying cultural group variability may prove valuable when applied to quantitative studies of acculturation.
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| 30. |
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| 31. |
- Fallarino, L., et al.
(författare)
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Magnetic properties of epitaxial CoCr films with depth-dependent exchange-coupling profiles
- 2017
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Ingår i: Physical Review B. - 2469-9950. ; 95:13
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Tidskriftsartikel (refereegranskat)abstract
- We present a study of the compositional and temperature-dependent magnetic properties of epitaxial CoCr thin films whose composition has a bathtublike depth profile Co/Co1 -> 1- xcCr0 -> xc/Co1-xcCrxc/Co1-xc -> 1Crxc -> 0/Co with the highest Cr concentration (x(c)) at the center of the sample. Polarized neutron reflectometry (PNR) shows that the effective Curie temperature varies as a function of depth and exhibits a minimum in the center of the structure. Correspondingly, we observe that the effective coupling between the two outer Co layers is strongly dependent on the magnetization of the graded CoCr spacer and can be continuously tuned via xc and temperature T. In particular, for x(c) = 0.28, magnetometry reveals a transition from one-step to two-step reversal behavior for temperatures T > 260 K, indicating a transition from a fully correlated magnetic film structure to an uncoupled system containing effectively two independent magnetic sublayers. Corroborating evidence of the temperature- dependent coupling of the top and bottom regions for x(c) = 0.28 was revealed by PNR, which demonstrated the field-dependent occurrence of antiparallel magnetization alignment on opposite interfaces at sufficiently high temperatures only.
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| 32. |
- Götmark, Frank, 1955, et al.
(författare)
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Strict reserves, IUCN classification, and the use of reserves for scientific research: a comment on Schultze et al. (2014)
- 2015
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Ingår i: Biodiversity and Conservation. - : Springer Science and Business Media LLC. - 0960-3115 .- 1572-9710. ; 24:14, s. 3621-3625
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Tidskriftsartikel (refereegranskat)abstract
- Schultze et al. (Biodiv Conserv 23:3519-3542, 2014) analysed criteria for the selection of strictly protected forest reserves in central Europe, but did not clarify the value of strict reserves (IUCN type 1a) for scientific research. We suggest that research in protected areas (PAs) should be included in the criteria that are used for their selection; in particular, scientific research is essential for monitoring the reasons (species and habitats) for establishing the reserve, and can contribute to testing the available alternatives for habitat management in PAs. This is particularly true for forest reserves, since most which are designated for strict protection are mid-aged, and typically secondary successions from historically more open habitats. The research may include habitat manipulation and non-manipulated reference areas (minimal intervention) which need long-term studies, since forests develop slowly. Strict reserves are ideal for such scientific research, since the strong protection means strong control of the land, whereas other land may be subject to change. There are many IUCN type 1a strict reserves, and a network of such reserves for scientific research would need to use only a small proportion of them. We encourage conservation organisations and researchers to establish such research networks in cooperation with PA managers.
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| 33. |
- Lansford, Jennifer E., et al.
(författare)
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Household income predicts trajectories of child internalizing and externalizing behavior in high-, middle-, and low-income countries
- 2019
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Ingår i: International Journal of Behavioral Development. - : SAGE Publications. - 0165-0254 .- 1464-0651. ; 43:1, s. 74-79
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Tidskriftsartikel (refereegranskat)abstract
- This study examined longitudinal links between household income and parents' education and children's trajectories of internalizing and externalizing behaviors from age 8 to 10 reported by mothers, fathers, and children. Longitudinal data from 1,190 families in 11 cultural groups in eight countries (Colombia, Italy, Jordan, Kenya, Philippines, Sweden, Thailand, and United States) were included. Multigroup structural equation models revealed that household income, but not maternal or paternal education, was related to trajectories of mother-, father-, and child-reported internalizing and externalizing problems in each of the 11 cultural groups. Our findings highlight that in low-, middle-, and high-income countries, socioeconomic risk is related to children's internalizing and externalizing problems, extending the international focus beyond children's physical health to their emotional and behavioral development.
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| 34. |
- Lansford, Jennifer E, et al.
(författare)
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Individual, family, and culture level contributions to child physical abuse and neglect : A longitudinal study in nine countries.
- 2015
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Ingår i: Development and psychopathology (Print). - 0954-5794 .- 1469-2198. ; 27:4 Pt 2, s. 1417-1428
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Tidskriftsartikel (refereegranskat)abstract
- This study advances understanding of predictors of child abuse and neglect at multiple levels of influence. Mothers, fathers, and children (N = 1,418 families, M age of children = 8.29 years) were interviewed annually in three waves in 13 cultural groups in nine countries (China, Colombia, Italy, Jordan, Kenya, Philippines, Sweden, Thailand, and the United States). Multilevel models were estimated to examine predictors of (a) within-family differences across the three time points, (b) between-family within-culture differences, and (c) between-cultural group differences in mothers' and fathers' reports of corporal punishment and children's reports of their parents' neglect. These analyses addressed to what extent mothers' and fathers' use of corporal punishment and children's perceptions of their parents' neglect were predicted by parents' belief in the necessity of using corporal punishment, parents' perception of the normativeness of corporal punishment in their community, parents' progressive parenting attitudes, parents' endorsement of aggression, parents' education, children's externalizing problems, and children's internalizing problems at each of the three levels. Individual-level predictors (especially child externalizing behaviors) as well as cultural-level predictors (especially normativeness of corporal punishment in the community) predicted corporal punishment and neglect. Findings are framed in an international context that considers how abuse and neglect are defined by the global community and how countries have attempted to prevent abuse and neglect.
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| 35. |
- Lansford, Jennifer E., et al.
(författare)
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Longitudinal associations between parenting and youth adjustment in twelve cultural groups : Cultural normativeness of parenting as a moderator
- 2018
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Ingår i: Developmental Psychology. - : American Psychological Association (APA). - 0012-1649 .- 1939-0599. ; 54:2, s. 362-377
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Tidskriftsartikel (refereegranskat)abstract
- To examine whether the cultural normativeness of parents' beliefs and behaviors moderates the links between those beliefs and behaviors and youths' adjustment, mothers, fathers, and children (N = 1,298 families) from 12 cultural groups in 9 countries (China, Colombia, Italy, Jordan, Kenya, Philippines, Sweden, Thailand, and the United States) were interviewed when children were, on average, 10 years old and again when children were 12 years old. Multilevel models examined 5 aspects of parenting (expectations regarding family obligations, monitoring, psychological control, behavioral control, warmth/affection) in relation to 5 aspects of youth adjustment (social competence, prosocial behavior, academic achievement, externalizing behavior, internalizing behavior). Interactions between family level and culture-level predictors were tested to examine whether cultural normativeness of parenting behaviors moderated the link between those behaviors and children's adjustment. More evidence was found for within- than between-culture differences in parenting predictors of youth adjustment. In 7 of the 8 instances in which cultural normativeness was found to moderate the link between parenting and youth adjustment, the link between a particular parenting behavior and youth adjustment was magnified in cultural contexts in which the parenting behavior was more normative
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| 36. |
- Lansford, Jennifer E, et al.
(författare)
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Mothers', fathers' and children's perceptions of parents' expectations about children's family obligations in nine countries.
- 2016
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Ingår i: International Journal of Psychology. - : Wiley. - 0020-7594 .- 1464-066X. ; 51:5, s. 366-374
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Tidskriftsartikel (refereegranskat)abstract
- Children's family obligations involve assistance and respect that children are expected to provide to immediate and extended family members and reflect beliefs related to family life that may differ across cultural groups. Mothers, fathers and children (N = 1432 families) in 13 cultural groups in 9 countries (China, Colombia, Italy, Jordan, Kenya, Philippines, Sweden, Thailand and United States) reported on their expectations regarding children's family obligations and parenting attitudes and behaviours. Within families, mothers and fathers had more concordant expectations regarding children's family obligations than did parents and children. Parenting behaviours that were warmer, less neglectful and more controlling as well as parenting attitudes that were more authoritarian were related to higher expectations regarding children's family obligations between families within cultures as well as between cultures. These international findings advance understanding of children's family obligations by contextualising them both within families and across a number of diverse cultural groups in 9 countries.
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| 37. |
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| 38. |
- Lansford, Jennifer E., et al.
(författare)
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Parenting and Positive Adjustment for Adolescents in Nine Countries : Novel Approaches and Findings from Europe, Asia, Africa and America
- 2017
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Ingår i: Well-Being of Youth and Emerging Adults across Cultures. - Cham : Springer International Publishing. - 9783319683621 - 9783319683638 ; , s. 235-248
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- This chapter describes the theoretical background, methodology, and select empirical findings from the Parenting Across Cultures project, a longitudinal study of mothers, fathers, and youth in nine countries (China, Colombia, Italy, Jordan, Kenya, Philippines, Sweden, Thailand, and United States). The design of the study is well suited to addressing questions regarding within-family, between-family within-country, and between-country predictors of youth outcomes. Positive development may be characterized in unique ways in different countries, but adjustment outcomes such as social competence, prosocial behavior, and academic achievement also share features and parenting predictors in different countries. Combining emic (originating within a culture) and etic (originating outside a culture) approaches, operationalizing culture, and handling measurement invariance are challenges of international research. Understanding culturally specific and generalizable features of positive youth development as well as how youth are socialized in ways to promote positive adjustment are advantages of comparative international research.
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| 39. |
- Lansford, Jennifer E., et al.
(författare)
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Parenting, culture, and the development of externalizing behaviors from age 7 to 14 in nine countries
- 2018
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Ingår i: Development and psychopathology (Print). - 0954-5794 .- 1469-2198. ; 30:SI, s. 1937-1958
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Tidskriftsartikel (refereegranskat)abstract
- Using multilevel models, we examined mother-, father-, and child-reported (N = 1,336 families) externalizing behavior problem trajectories from age 7 to 14 in nine countries (China, Colombia, Italy, Jordan, Kenya, the Philippines, Sweden, Thailand, and the United States). The intercept and slope of children's externalizing behavior trajectories varied both across individuals within culture and across cultures, and the variance was larger at the individual level than at the culture level. Mothers' and children's endorsement of aggression as well as mothers' authoritarian attitudes predicted higher age 8 intercepts of child externalizing behaviors. Furthermore, prediction from individual-level endorsement of aggression and authoritarian attitudes to more child externalizing behaviors was augmented by prediction from cultural-level endorsement of aggression and authoritarian attitudes, respectively. Cultures in which father-reported endorsement of aggression was higher and both mother- and father-reported authoritarian attitudes were higher also reported more child externalizing behavior problems at age 8. Among fathers, greater attributions regarding uncontrollable success in caregiving situations were associated with steeper declines in externalizing over time. Understanding cultural-level as well as individual-level correlates of children's externalizing behavior offers potential insights into prevention and intervention efforts that can be more effectively targeted at individual children and parents as well as targeted at changing cultural norms that increase the risk of children's and adolescents' externalizing behavior.
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| 40. |
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| 41. |
- Lansford, Jennifer E., et al.
(författare)
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Reward sensitivity, impulse control, and social cognition as mediators of the link between childhood family adversity and externalizing behavior in eight countries
- 2017
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Ingår i: Development and psychopathology (Print). - 0954-5794 .- 1469-2198. ; 20:5, s. 1675-1688
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Tidskriftsartikel (refereegranskat)abstract
- Using data from 1,177 families in eight countries (Colombia, Italy, Jordan, Kenya, the Philippines, Sweden, Thailand, and the United States), we tested a conceptual model of direct effects of childhood family adversity on subsequent externalizing behaviors as well as indirect effects through psychological mediators. When children were 9 years old, mothers and fathers reported on financial difficulties and their use of corporal punishment, and children reported perceptions of their parents' rejection. When children were 10 years old, they completed a computerized battery of tasks assessing reward sensitivity and impulse control and responded to questions about hypothetical social provocations to assess their hostile attributions and proclivity for aggressive responding. When children were 12 years old, they reported on their externalizing behavior. Multigroup structural equation models revealed that across all eight countries, childhood family adversity had direct effects on externalizing behaviors 3 years later, and childhood family adversity had indirect effects on externalizing behavior through psychological mediators. The findings suggest ways in which family-level adversity poses risk for children's subsequent development of problems at psychological and behavioral levels, situated within diverse cultural contexts.
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| 42. |
- Oeckl, Patrick, et al.
(författare)
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Multicenter validation of CSF neurofilaments as diagnostic biomarkers for ALS
- 2016
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Ingår i: Amyotrophic Lateral Sclerosis and Frontotemporal Degeneration. - : Informa UK Limited. - 2167-8421 .- 2167-9223. ; 17:5-6, s. 404-413
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: Neurofilaments are leading neurochemical biomarkers for amyotrophic lateral sclerosis (ALS). Here, we investigated the effect of preanalytical factors on neurofilament concentrations in cerebrospinal fluid (CSF) in a reverse round-robin with 15 centers across Europe/U.S. METHODS: Samples from ALS and control patients (5/5 each center, n=150) were analyzed for phosphorylated neurofilament heavy chain (pNfH) and neurofilament light chain (NfL) at two laboratories. RESULTS: CSF pNfH was increased (p<0.05) in ALS in 10 out of 15 centers and NfL in 5 out of 12 centers. The coefficient of variation (CV%) of pNfH measurements between laboratories was 18.7 +/- 19.1%. We calculated a diagnostic cut-off of >568.5pg/mL for pNfH (sensitivity 78.7%, specificity 93.3%) and >1,431pg/mL for NfL (sensitivity 79.0%, specificity 86.4%). CONCLUSION: Values in ALS patients are already comparable between most centers, supporting eventual implementation into clinical routine. However, continuous quality control programs will be necessary for inclusion in the diagnostic work-up.
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| 43. |
- Pastorelli, Concetta, et al.
(författare)
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Positive parenting and children’s prosocial behavior in eight countries
- 2016
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Ingår i: Journal of Child Psychology and Psychiatry. - : Wiley. - 0021-9630 .- 1469-7610. ; 57:7, s. 824-834
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Tidskriftsartikel (refereegranskat)abstract
- Background Research supports the beneficial role of prosocial behaviors on children’s adjustment and successful youth development. Empirical studies point to reciprocal relations between negative parenting and children’s maladjustment, but reciprocal relations between positive parenting and children’s prosocial behavior are understudied. In this study reciprocal relations between two different dimensions of positive parenting (quality of the mother–child relationship and the use of balanced positive discipline) and children’s prosocial behavior were examined in Colombia, Italy, Jordan, Kenya, the Philippines, Sweden, Thailand, and the United States. Methods Mother–child dyads (N = 1105) provided data over 2 years in two waves (Mage of child in wave 1 = 9.31 years, SD = 0.73; 50% female). Results A model of reciprocal relations between parenting dimensions, but not among parenting and children’s prosocial behavior, emerged. In particular, children with higher levels of prosocial behavior at age 9 elicited higher levels of mother–child relationship quality in the following year. Conclusions Findings yielded similar relations across countries, evidencing that being prosocial in late childhood contributes to some degree to the enhancement of a nurturing and involved mother–child relationship in countries that vary widely on sociodemographic profiles and psychological characteristics. Policy and intervention implications of this study are discussed.
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| 44. |
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| 45. |
- Putnick, Diana L, et al.
(författare)
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Parental acceptance–rejection and child prosocial behavior : Developmental transactions across the transition to adolescence in nine countries, mothers and fathers, and girls and boys.
- 2018
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Ingår i: Developmental Psychology. - : American Psychological Association (APA). - 0012-1649 .- 1939-0599. ; 54:10, s. 1881-1890
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Tidskriftsartikel (refereegranskat)abstract
- Promoting children’s prosocial behavior is a goal for parents, healthcare professionals, and nations. Does positive parenting promote later child prosocial behavior, or do children who are more prosocial elicit more positive parenting later, or both? Relations between parenting and prosocial behavior have to date been studied only in a narrow band of countries, mostly with mothers and not fathers, and child gender has infrequently been explored as a moderator of parenting–prosocial relations. This cross-national study uses 1,178 families (mothers, fathers, and children) from 9 countries to explore developmental transactions between parental acceptance–rejection and girls’ and boys’ prosocial behavior across 3 waves (child ages 9 to 12). Controlling for stability across waves, within-wave relations, and parental age and education, higher parental acceptance predicted increased child prosocial behavior from age 9 to 10 and from age 10 to 12. Higher age 9 child prosocial behavior also predicted increased parental acceptance from age 9 to 10. These transactional paths were invariant across 9 countries, mothers and fathers, and girls and boys. Parental acceptance increases child prosocial behaviors later, but child prosocial behaviors are not effective at increasing parental acceptance in the transition to adolescence. This study identifies widely applicable socialization processes across countries, mothers and fathers, and girls and boys. (PsycINFO Database Record (c) 2018 APA, all rights reserved)
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| 46. |
- Putnick, Diane L., et al.
(författare)
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Perceived mother and father acceptance-rejection predict four unique aspects of child adjustment across nine countries
- 2015
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Ingår i: Journal of Child Psychology and Psychiatry. - : Wiley. - 0021-9630 .- 1469-7610. ; 56:8, s. 923-932
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Tidskriftsartikel (refereegranskat)abstract
- Background It is generally believed that parental rejection of children leads to child maladaptation. However, the specific effects of perceived parental acceptance-rejection on diverse domains of child adjustment and development have been incompletely documented, and whether these effects hold across diverse populations and for mothers and fathers are still open questions. Methods This study assessed children’s perceptions of mother and father acceptance-rejection in 1,247 families from China, Colombia, Italy, Jordan, Kenya, the Philippines, Sweden, Thailand, and the United States as antecedent predictors of later internalizing and externalizing behavior problems, school performance, prosocial behavior, and social competence. Results Higher perceived parental rejection predicted increases in internalizing and externalizing behavior problems and decreases in school performance and prosocial behavior across 3 years controlling for within-wave relations, stability across waves, and parental age, education, and social desirability bias. Patterns of relations were similar across mothers and fathers and, with a few exceptions, all nine countries. Conclusions Children’s perceptions of maternal and paternal acceptance-rejection have small but nearly universal effects on multiple aspects of their adjustment and development regardless of the family’s country of origin.
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| 47. |
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| 48. |
- Shearer, J. A., et al.
(författare)
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Animal Models of Focal Cerebral Ischaemia and Haemorrhagic Transformation: Considerations in Experimental Stroke Study Design
- 2018
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Ingår i: Current Vascular Pharmacology. - : Bentham Science Publishers Ltd.. - 1570-1611. ; 16:6, s. 534-546
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Tidskriftsartikel (refereegranskat)abstract
- Background: Ischaemic stroke is often complicated with haemorrhage within the infarct zone or in a remote location especially when treated with intravenous thrombolysis and/or thrombectomy. While these early recanalisation treatments are highly effective, some of the benefit is lost because of haemorrhagic complications and consequential neurological deterioration of the patients. A number of mechanisms have been described that mediate the haemorrhagic changes and several agents have been tested in experimental models for inhibiting post-stroke haemorrhage. Methods: Here, we review and discuss the small animal models of focal cerebral ischaemia and post-ischaemic stroke haemorrhagic transformation and how these models can best be utilised for developing further insights as well as potential treatment approaches for this serious clinical complication. Results: The need to use appropriate animal models with relevant stroke risk factors to improve the clinical relevance and applicability of findings is becoming ever more apparent. Current focal ischaemia models can be adapted for the study of haemorrhagic transformation post-stroke. Conclusion: A number of factors can be added to the animal model design to increase the incidence and/or severity of haemorrhagic transformation post-ischaemic stroke, which can improve clinical relevance, aid the study of the pathophysiology and the future development of novel interventions.
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| 49. |
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| 50. |
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