Head Group Influence on Lipid Interactions With a Polyhydroxyalkanoate Biopolymer

2012 ◽  
Vol 213 (18) ◽  
pp. 1922-1932 ◽  
Author(s):  
Agnieszka Jagoda ◽  
Manfred Zinn ◽  
Wolfgang Meier ◽  
Katarzyna Kita-Tokarczyk
Keyword(s):  
Head Group ◽  
Group Influence ◽  
Lipid Interactions

Langmuir-Schaefer Films: Head Group Influence on Orientation of Substituted Styryl Bipyridines

Langmuir ◽  
1995 ◽  
Vol 11 (5) ◽  
pp. 1658-1665 ◽  
Author(s):  
K. K. Balasubramanian ◽  
V. Cammarata ◽  
Q. Wu
Keyword(s):  
Head Group ◽  
Group Influence

Stereoselective synthesis of the head group of archaeal phospholipid PGP-Me to investigate bacteriorhodopsin–lipid interactions

2015 ◽  
Vol 13 (41) ◽  
pp. 10279-10284 ◽  
Author(s):  
Jin Cui ◽  
Satoshi Kawatake ◽  
Yuichi Umegawa ◽  
Sébastien Lethu ◽  
Masaki Yamagami ◽  
...  
Keyword(s):  
Methyl Ester ◽  
Proton Pump ◽  
Stereoselective Synthesis ◽  
Purple Membrane ◽  
Major Constituent ◽  
Head Group ◽  
Lipid Interactions ◽  
Pump Activity

Phosphatidylglycerophosphate methyl ester (PGP-Me), a major constituent of the archaeal purple membrane, is essential for the proper proton-pump activity of bacteriorhodopsin (bR).

scholarly journals Correction: Stereoselective synthesis of the head group of archaeal phospholipid PGP-Me to investigate bacteriorhodopsin–lipid interactions

2015 ◽  
Vol 13 (42) ◽  
pp. 10578-10578
Author(s):  
Jin Cui ◽  
Satoshi Kawatake ◽  
Yuichi Umegawa ◽  
Sébastien Lethu ◽  
Masaki Yamagami ◽  
...  
Keyword(s):  
Stereoselective Synthesis ◽  
Head Group ◽  
Lipid Interactions

Correction for ‘Stereoselective synthesis of the head group of archaeal phospholipid PGP-Me to investigate bacteriorhodopsin–lipid interactions’ by Jin Cui, et al., Org. Biomol. Chem., 2015, DOI: 10.1039/c5ob01252j.

Chlorophyll-Lipid-Interactions in Monomolecular Layers

1983 ◽  
Vol 38 (11-12) ◽  
pp. 1003-1010 ◽  
Author(s):  
H. Heithier ◽  
H. Möhwald
Keyword(s):  
Phase Transition ◽  
Chlorophyll A ◽  
Solubility Limit ◽  
Head Group ◽  
Lipid Matrix ◽  
Pheophytin A ◽  
Spectroscopic Measurements ◽  
Lipid Interactions ◽  
Solid Lipid ◽  
Monomolecular Layers

Mixed monolayers containing chlorophyll a and dim yristoyllecithin (DML) have been investigated by simultaneous thermodynamic, fluorescence and absorption spectroscopic measurements. It has been shown that the solubility limit of chlorophyll a in the fluid, as well as in the solid lipid matrix, is above 20 mol%. This contrasts to previous findings for pheophytin a containing monolayers and indicates the existance of an interaction between the phospholipid head group and the central Mg atom. A fluorescence decrease on solidifying the monolayer was observed and it is suggested that it is due to an enhanced self quenching as a consequence of the reorientation of the porphyrin rings, accompanying the phase transition

The Emergence and Maintenance of Ethical Leadership in Organizations

2012 ◽  
Vol 11 (1) ◽  
pp. 7-19 ◽  
Author(s):  
Silke Astrid Eisenbeiß ◽  
Steffen R. Giessner
Keyword(s):  
Cultural Values ◽  
Ethical Leadership ◽  
Leadership Behavior ◽  
Peer Group ◽  
Organizational Characteristics ◽  
Future Research ◽  
Environmental Complexity ◽  
Group Influence ◽  
Analysis Society ◽  
Different Levels

The present paper gives a review of empirical research on ethical leadership and shows that still little is known known about the contextual antecedents of ethical leadership. To address this important issue, a conceptual framework is developed that analyzes the embeddedness of organizational ethical leadership. This framework identifies manifest and latent contextual factors on three different levels of analysis – society, industry, and organization – which can affect the development and maintenance of ethical leadership. In particular, propositions are offered about how (1) societal characteristics, notably the implementation and the spirit of human rights in a society and societal cultural values of responsibility, justice, humanity, and transparency; (2) industry characteristics such as environmental complexity, the content of the organizational mandate, and the interests of stakeholder networks; and (3) intra-organizational characteristics, including the organizational ethical infrastructure and the ethical leadership behavior of a leader’s peer group, influence the development and maintenance of ethical leadership in organizations. This list of factors is not exhaustive, but illustrates how the three levels may impact ethical leadership. Implications for managerial practice and future research are discussed.

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