Why do small Chinese firms list on the Frankfurt Stock Exchange?
In: Diskussionspapier des Instituts für Organisationsökonomik 2014,11
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In: Diskussionspapier des Instituts für Organisationsökonomik 2014,11
In: Diskussionspapier des Instituts für Organisationsökonomik 2013,12
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In: Environmental science and pollution research: ESPR, Volume 28, Issue 27, p. 35844-35853
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Volume 26, Issue 33, p. 34357-34367
ISSN: 1614-7499
In: Air quality, atmosphere and health: an international journal, Volume 11, Issue 9, p. 1037-1047
ISSN: 1873-9326
In: Environmental science and pollution research: ESPR, Volume 29, Issue 57, p. 86680-86691
ISSN: 1614-7499
In: Materials and design, Volume 239, p. 112746
ISSN: 1873-4197
In: PNAS nexus, Volume 2, Issue 8
ISSN: 2752-6542
Abstract
The ability of cells to sense and adapt to curvy topographical features has been implicated in organ morphogenesis, tissue repair, and tumor metastasis. However, how individual cells or multicellular assemblies sense and differentiate curvatures remains elusive. Here, we reveal a curvature sensing mechanism in which surface tension can selectively activate either actin or integrin flows, leading to bifurcating cell migration modes: focal adhesion formation that enables cell crawling at convex front edges and actin cable assembly that pulls cells forward at concave front edges. The molecular flows and curved front morphogenesis are sustained by coordinated cellular tension generation and transmission. We track the molecular flows and mechanical force transduction pathways by a phase-field model, which predicts that multicellular curvature sensing is more efficient than individual cells, suggesting collective intelligence of cells. The unique ability of cells in curvature sensing and migration mode bifurcating may offer insights into emergent collective patterns and functions of living active systems at different length scales.
In: Environmental science and pollution research: ESPR, Volume 30, Issue 24, p. 66021-66032
ISSN: 1614-7499
AbstractThe conclusions about the association of maternal pregnancy environment, occupation, and benzene compounds with fetal CHD are not entirely consistent. Eight hundred seven CHD cases and 1008 controls were included in this study. All occupations were classified and coded against the Occupational Classification Dictionary of the People's Republic of China (2015 version). Logistic regressions were used to explore the correlation among environmental factors, occupation types, and CHDs in offspring. We found that living near public facilities and having exposure to chemical reagents and hazardous substances were significant risk factors for CHDs in offspring. We found that offspring of mothers who worked in agriculture and similar work during pregnancy suffered from CHD. The risk of all CHDs in the offspring of pregnant women working in production manufacturing and related work was significantly higher than that in unemployed pregnant women, the risk was also observed in 4 subtypes of CHDs. We compared the concentrations of the five metabolite (MA, mHA, HA, PGA, and SPMA) levels of benzene compounds in the urine of mothers in case and control groups and found no significant differences. Our study suggests that maternal exposure during pregnancy and certain environmental and occupational conditions are risk factors for CHD in offspring, but did not support an association between concentrations of metabolites of benzene compounds in the urine of pregnant women and CHDs in their offspring.
In: Environmental science and pollution research: ESPR, Volume 28, Issue 24, p. 31207-31217
ISSN: 1614-7499
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Volume 245, p. 114103
ISSN: 1090-2414
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Volume 224, p. 112680
ISSN: 1090-2414
In: Environmental science and pollution research: ESPR, Volume 31, Issue 4, p. 6398-6410
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Volume 29, Issue 8, p. 11865-11873
ISSN: 1614-7499