16 research outputs found
Barley sodium content is regulated by natural variants of the Na+ transporter HvHKT1;5
During plant growth, sodium (Na+) in the soil is transported via the xylem from the root to the shoot. While excess Na+ is toxic to most plants, non-toxic concentrations have been shown to improve crop yields under certain conditions, such as when soil K+ is low. We quantified grain Na+ across a barley genome-wide association study panel grown under non-saline conditions and identified variants of a Class 1 HIGH-AFFINITY-POTASSIUM-TRANSPORTER (HvHKT1;5)-encoding gene responsible for Na+ content variation under these conditions. A leucine to proline substitution at position 189 (L189P) in HvHKT1;5 disturbs its characteristic plasma membrane localisation and disrupts Na+ transport. Under low and moderate soil Na+, genotypes containing HvHKT1:5P189 accumulate high concentrations of Na+ but exhibit no evidence of toxicity. As the frequency of HvHKT1:5P189 increases significantly in cultivated European germplasm, we cautiously speculate that this non-functional variant may enhance yield potential in non-saline environments, possibly by offsetting limitations of low available K+
Social creativity: Reviving a social identity approach to social stability
Social Identity Theory (SIT) is commonly applied to explain social change. We aim to revive interest in the concept of social creativity in order to provide a SIT perspective on bolstering and challenging social stability. Social creativity allows people to maintain or achieve a positive social identity through re‐interpreting intergroup relations. Despite this crucial role in shaping intergroup comparisons, the causes and effects of social creativity are largely unknown. To understand how social creativity can contribute to social stability, we argue for a return to SIT’s dynamic nature of constantly re‐negotiating intergroup relations, involving both higher‐ and lower‐status groups. Within these dynamics, we propose that social creativity can play the roles of coping with, promoting, and questioning social stability. Additionally, we outline a research agenda for future research on social creativity and discuss the impact that social stability can have in societies
Antecedents and consequences of system justification among Iranian migrants in Western Europe
Seeing the sociopolitical system as fair and legitimate is important for people’s participation in civic duties, political action, and the functioning of society in general. However, little is known about when migrants, without life-long socialization in a certain system, justify the sociopolitical system of their host country and how system justification influences their political participation. We examined antecedents of system justification using a survey among Iranian migrants in eight European countries (N = 935). Subsequently, we examined the relationship between system justification and political participation intentions. We found that system justification beliefs are generally high in our sample, mainly stemming from an assessment of opportunity to achieve changes in intergroup relations. Stronger social identity threat, feeling disadvantaged, a longer residence in Europe, and perceived intergroup stability all relate to less system justification. Conversely, stronger efficacy beliefs bolster system justification. Furthermore, we found some support for a curvilinear relationship between system justification and political participation intentions, but the size of this effect is small. The results show that the high levels of system justification of Iranian migrants are at risk when discrimination and disadvantage are perceived to be stable facets of society. Surprisingly, political participation to better Iranian migrants’ societal position is barely affected by system justification. We discuss implications and further research that can increase understanding of system justification among migrants
Social creativity: Reviving a social identity approach to social stability
Social Identity Theory (SIT) is commonly applied to explain social change. We aim to revive interest in the concept of social creativity in order to provide a SIT perspective on bolstering and challenging social stability. Social creativity allows people to maintain or achieve a positive social identity through re‐interpreting intergroup relations. Despite this crucial role in shaping intergroup comparisons, the causes and effects of social creativity are largely unknown. To understand how social creativity can contribute to social stability, we argue for a return to SIT’s dynamic nature of constantly re‐negotiating intergroup relations, involving both higher‐ and lower‐status groups. Within these dynamics, we propose that social creativity can play the roles of coping with, promoting, and questioning social stability. Additionally, we outline a research agenda for future research on social creativity and discuss the impact that social stability can have in societies
Antecedents and consequences of system justification among Iranian migrants in Western Europe
Seeing the sociopolitical system as fair and legitimate is important for people’s participation in civic duties, political action, and the functioning of society in general. However, little is known about when migrants, without life-long socialization in a certain system, justify the sociopolitical system of their host country and how system justification influences their political participation. We examined antecedents of system justification using a survey among Iranian migrants in eight European countries (N = 935). Subsequently, we examined the relationship between system justification and political participation intentions. We found that system justification beliefs are generally high in our sample, mainly stemming from an assessment of opportunity to achieve changes in intergroup relations. Stronger social identity threat, feeling disadvantaged, a longer residence in Europe, and perceived intergroup stability all relate to less system justification. Conversely, stronger efficacy beliefs bolster system justification. Furthermore, we found some support for a curvilinear relationship between system justification and political participation intentions, but the size of this effect is small. The results show that the high levels of system justification of Iranian migrants are at risk when discrimination and disadvantage are perceived to be stable facets of society. Surprisingly, political participation to better Iranian migrants’ societal position is barely affected by system justification. We discuss implications and further research that can increase understanding of system justification among migrants
Trust in scientific information mediates associations between conservatism and coronavirus responses in the U.S., but few other nations
The distinct associations of ingroup attachment and glorification with responses to the coronavirus pandemic: Evidence from a multilevel investigation in 21 countries
While public health crises such as the coronavirus pandemic transcend national borders, practical efforts to combat them are often instantiated at the national level. Thus, national group identities may play key roles in shaping compliance with and support for preventative measures (e.g., hygiene and lockdowns). Using data from 25,159 participants across representative samples from 21 nations, we investigated how different modalities of ingroup identification (attachment and glorification) are linked with reactions to the coronavirus pandemic (compliance and support for lockdown restrictions). We also examined the extent to which the associations of attachment and glorification with responses to the coronavirus pandemic are mediated through trust in information about the coronavirus pandemic from scientific and government sources. Multilevel models suggested that attachment, but not glorification, was associated with increased trust in science and compliance with federal COVID-19 guidelines. However, while both attachment and glorification were associated with trust in government and support for lockdown restrictions, glorification was more strongly associated with trust in government information than attachment. These results suggest that both attachment and glorification can be useful for promoting public health, although glorification's role, while potentially stronger, is restricted to pathways through trust in government information
Real-World Effectiveness of Reslizumab in Patients with Severe Eosinophilic Asthma - "First Initiators" and "Switchers"
BACKGROUND: Reslizumab, a biologic targeting interleukin-5 has been shown to reduce asthma exacerbations and maintenance oral corticosteroid (OCS) use in randomized controlled trials and pre-post studies in patients with severe eosinophilic asthma. However, real-world effectiveness data of reslizumab are scarce, and it is unknown whether reslizumab has added value after switching from another type-2 biologic. OBJECTIVE: To evaluate (1) real-world effectiveness of reslizumab on severe asthma exacerbations, maintenance OCS-use and overall treatment response, both in biologic naïve patients who initiated reslizumab, and in patients who switched from another type-2 biologic. (2) physicians experience with reslizumab treatment. METHODS: This observational real-world study evaluated data from 134 adults with severe eosinophilic asthma included in the Dutch severe asthma registry (RAPSODI) who initiated reslizumab treatment (4-weekly infusions, 0.3 mg/kg) before April 2020 and had follow-up data ≥6 months. Clinical asthma experts completed surveys on their experience with reslizumab treatment. RESULTS: Overall, reslizumab reduced exacerbation rate (OR(95%CI): 0.10(0.05-0.21), p<0.001), oral corticosteroid use (OR(95%CI) 0.2(0.0-0.5), p<0.001) and maintenance dose, median(CI): 5.0(0.0-10.0) to 0.0(0.0-5.0), p<0.001), with comparable results in biologic-naïve reslizumab initiators and switchers. The overall response to reslizumab was graded 'good' or 'excellent' in 59.2% of patients. The additive effectiveness of reslizumab after switching from another biologic was reflected in physicians' surveys. CONCLUSION: Real-world data show that reslizumab reduces severe asthma exacerbations and oral corticosteroid use in patients with severe eosinophilic asthma, both in biologic-naïve reslizumab initiators and in those who switched from another type-2 biologic. This additional value of reslizumab was recognized by clinical asthma experts