scholarly journals Mineral iron dissolution in Trichodesmium colonies: The role of O 2 and pH microenvironments

2019 ◽  
Vol 65 (6) ◽  
pp. 1149-1160 ◽  
Author(s):  
Meri Eichner ◽  
Subhajit Basu ◽  
Siyuan Wang ◽  
Dirk Beer ◽  
Yeala Shaked
Keyword(s):  
Iron Dissolution

Surface aging at olivine LiFePO4: a direct visual observation of iron dissolution and the protection role of nano-carbon coating

2013 ◽  
Vol 1 (5) ◽  
pp. 1579-1586 ◽  
Author(s):  
Jiajun Wang ◽  
Jinli Yang ◽  
Yongji Tang ◽  
Ruying Li ◽  
Guoxian Liang ◽  
...  
Keyword(s):  
Carbon Coating ◽  
Visual Observation ◽  
Iron Dissolution ◽  
Direct Visual Observation ◽  
Nano Carbon

Mechanism of Improved Aged Rubber-to-Brass Adhesion Using One-Component Resins

2005 ◽  
Vol 78 (1) ◽  
pp. 155-173 ◽  
Author(s):  
Pankaj Y. Patil ◽  
William J. van Ooij
Keyword(s):  
Natural Rubber ◽  
Rubber Matrix ◽  
Corrosion Performance ◽  
Iron Dissolution ◽  
Pull Out ◽  
Rubber Compounds ◽  
New Findings ◽  
Steel Cord ◽  
Initial Heat

Abstract Using a squalene liquid rubber modeling approach, we have shown recently that the role of an adhesion promoting one-component resin system is similar to the conventional resorcinol based two-component resin system1. However, to further study the effect of resins in real natural rubber based formulations, eight similar formulations were mixed to make compounds in natural rubber. These rubber compounds were characterized and tested for their mechanical properties viz. stress at break, stress at 300% strain, elongation %, initial, heat and humidity aged wire adhesion pull-out test, tensile tear strength test. Furthermore, to confirm our proposed theory of the migration of resins from the rubber matrix towards the surface, the surfaces of the rubber compounds were studied using ATR-FTIR spectroscopy. NMR spectroscopy was performed on the rubber compounds to study the sulfur crosslink density distribution. Based on our new findings relating to improved corrosion performance of sulfidized brass cords a theory has been put forward that loss of rubber-to-brass adhesion is in fact due to the aging of the brass cord. This aging of brass cord is found to be due to the dissolution of iron from the steel cord. It was observed that the use of different formulations affected the corrosion performance of the sulfidized brass cords in a different manner. The use of resins, particularly one-component resins, seemed to inhibit this iron dissolution thus resulting in durable rubber-to-brass adhesion even in the humidity aged adhesion blocks.

Role of dactinomycin in the improved survival of children with Wilms' tumor

JAMA ◽  
1966 ◽  
Vol 195 (12) ◽  
pp. 1005-1009 ◽  
Author(s):  
D. J. Fernbach
Keyword(s):  
Wilms Tumor

Role of the allergist in diagnosis and management of patients with uveitis

JAMA ◽  
1966 ◽  
Vol 195 (3) ◽  
pp. 167-172 ◽  
Author(s):  
T. E. Van Metre
Keyword(s):  
Diagnosis And Management

The power of norms to sway fused group members

2018 ◽  
Vol 41 ◽  
Author(s):  
Winnifred R. Louis ◽  
Craig McGarty ◽  
Emma F. Thomas ◽  
Catherine E. Amiot ◽  
Fathali M. Moghaddam
Keyword(s):  
Evolutionary Anthropology ◽  
Normative Systems ◽  
Violent Extremism ◽  
Identity Fusion ◽  
Group Members

AbstractWhitehouse adapts insights from evolutionary anthropology to interpret extreme self-sacrifice through the concept of identity fusion. The model neglects the role of normative systems in shaping behaviors, especially in relation to violent extremism. In peaceful groups, increasing fusion will actually decrease extremism. Groups collectively appraise threats and opportunities, actively debate action options, and rarely choose violence toward self or others.

Elaborating the role of reflection and individual differences in the study of folk-economic beliefs

2018 ◽  
Vol 41 ◽  
Author(s):  
Kevin Arceneaux
Keyword(s):  
Decision Making ◽  
Individual Differences ◽  
Cognitive Processes ◽  
Evolutionary History ◽  
Behavioral Responses ◽  
History Of ◽  
Economic Beliefs

AbstractIntuitions guide decision-making, and looking to the evolutionary history of humans illuminates why some behavioral responses are more intuitive than others. Yet a place remains for cognitive processes to second-guess intuitive responses – that is, to be reflective – and individual differences abound in automatic, intuitive processing as well.

The role of affect in feelings of obligation

2020 ◽  
Vol 43 ◽  
Author(s):  
Stefen Beeler-Duden ◽  
Meltem Yucel ◽  
Amrisha Vaish
Keyword(s):  
Positive Emotions ◽  
The Creation ◽  
Sense Of Obligation

Abstract Tomasello offers a compelling account of the emergence of humans’ sense of obligation. We suggest that more needs to be said about the role of affect in the creation of obligations. We also argue that positive emotions such as gratitude evolved to encourage individuals to fulfill cooperative obligations without the negative quality that Tomasello proposes is inherent in obligations.

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