scholarly journals Understanding the role of conjugation length on the self-assembly behaviour of oligophenyleneethynylenes

2021 ◽  
Author(s):  
Beatriz Matarranz ◽  
Goutam Ghosh ◽  
Ramesh Kandanelli ◽  
Angel Sampedro ◽  
Kalathil K. Kartha ◽  
...  
Keyword(s):  
Self Assembly ◽  
The Self ◽  
Conjugation Length ◽  
The Relationship

We unravel the relationship between conjugation length and self-assembly behaviour of oligophenyleneethynylenes (OPEs).

From Container to Claustrum: Projective Identification in Couples

2014 ◽  
Vol 4 (2) ◽  
Author(s):  
Tamara Feldman
Keyword(s):  
Psychological Health ◽  
Projective Identification ◽  
The Self ◽  
The Other ◽  
Intimate Partners ◽  
And Control ◽  
The Relationship ◽  
As If

This paper is a contribution to the growing literature on the role of projective identification in understanding couples' dynamics. Projective identification as a defence is well suited to couples, as intimate partners provide an ideal location to deposit unwanted parts of the self. This paper illustrates how projective identification functions differently depending on the psychological health of the couple. It elucidates how healthier couples use projective identification more as a form of communication, whereas disturbed couples are inclined to employ it to invade and control the other, as captured by Meltzer's concept of "intrusive identification". These different uses of projective identification affect couples' capacities to provide what Bion called "containment". In disturbed couples, partners serve as what Meltzer termed "claustrums" whereby projections are not contained, but imprisoned or entombed in the other. Applying the concept of claustrum helps illuminate common feelings these couples express, such as feeling suffocated, stifled, trapped, held hostage, or feeling as if the relationship is killing them. Finally, this paper presents treatment challenges in working with more disturbed couples.

Directive Effect of Chain Length in Modulating Peptide Nano-assemblies

2020 ◽  
Vol 27 (9) ◽  
pp. 923-929
Author(s):  
Gaurav Pandey ◽  
Prem Prakash Das ◽  
Vibin Ramakrishnan
Keyword(s):  
Electron Microscopy ◽  
Amino Acids ◽  
Light Scattering ◽  
Chain Length ◽  
Self Assembly ◽  
The Self ◽  
Ionic Charge ◽  
Self Assembling ◽  
Biophysical Techniques

Background: RADA-4 (Ac-RADARADARADARADA-NH2) is the most extensively studied and marketed self-assembling peptide, forming hydrogel, used to create defined threedimensional microenvironments for cell culture applications. Objectives: In this work, we use various biophysical techniques to investigate the length dependency of RADA aggregation and assembly. Methods: We synthesized a series of RADA-N peptides, N ranging from 1 to 4, resulting in four peptides having 4, 8, 12, and 16 amino acids in their sequence. Through a combination of various biophysical methods including thioflavin T fluorescence assay, static right angle light scattering assay, Dynamic Light Scattering (DLS), electron microscopy, CD, and IR spectroscopy, we have examined the role of chain-length on the self-assembly of RADA peptide. Results: Our observations show that the aggregation of ionic, charge-complementary RADA motifcontaining peptides is length-dependent, with N less than 3 are not forming spontaneous selfassemblies. Conclusion: The six biophysical experiments discussed in this paper validate the significance of chain-length on the epitaxial growth of RADA peptide self-assembly.

scholarly journals Self-Assembly of Shape-Tunable Oblate Colloidal Particles into Orientationally Ordered Crystals, Glassy Crystals and Plastic Crystals

Soft Matter ◽  
2021 ◽  
Author(s):  
Jiawei Lu ◽  
Xiangyu Bu ◽  
Xinghua Zhang ◽  
Bing Liu
Keyword(s):  
Crystal Structures ◽  
Self Assembly ◽  
Colloidal Particles ◽  
Building Blocks ◽  
Fundamental Question ◽  
The Self ◽  
Plastic Crystals ◽  
Self Assembled ◽  
Glassy Crystals ◽  
The Relationship

The shapes of colloidal particles are crucial to the self-assembled superstructures. Understanding the relationship between the shapes of building blocks and the resulting crystal structures is an important fundamental question....

AN INTERACTIONAL APPROACH TO ATTRIBUTIONAL DIMENSIONS IN DYSPHORIA

1990 ◽  
Vol 18 (2) ◽  
pp. 267-277 ◽  
Author(s):  
Janet E. Eschen ◽  
David S. Glenwick
Keyword(s):  
Attributional Style ◽  
The Self ◽  
Regression Analyses ◽  
Self Blame ◽  
Attributional Style Questionnaire ◽  
Standard Manner ◽  
Stability Dimension ◽  
The Stability ◽  
The Relationship

To investigate the possible contributions to dysphoria of interactions among attributional dimensions, 105 freshmen and sophomores were administered the Attributional Style Questionnaire and the Beck Depression Inventory. Analyses examined the relationship to dysphoria of (a) the traditional composite score; (b) multiple regression analyses including interactions among the various dimensions; and (c) indices of behavioral self-blame, characterological self-blame, and external blame. The results provided modest support for the specific hypothesized interactional model and, to a large extent, appeared to support the validity of the standard manner in which dysphoric attributional style is viewed. Refinements of the traditional model are suggested, involving the self-blame construct, the possible role of the stability dimension, and the relationship between controllability and positive event attributions.

Role of Multivalent Cations in the Self-Assembly of Phospholipid−DNA Complexes

2007 ◽  
Vol 111 (51) ◽  
pp. 14233-14238 ◽  
Author(s):  
Guillaume Tresset ◽  
Wun Chet Davy Cheong ◽  
Yeng Ming Lam
Keyword(s):  
Self Assembly ◽  
The Self ◽  
Dna Complexes

Self-Assembly of Alkali Lignin in Tetrahydrofuran

2012 ◽  
Vol 550-553 ◽  
pp. 57-61
Author(s):  
Hao Li ◽  
Yong Hong Deng ◽  
Kai Huang
Keyword(s):  
Charge Transfer ◽  
Electrostatic Interaction ◽  
Self Assembly ◽  
The Self ◽  
Charge Transfer Complexes ◽  
Layer By Layer ◽  
Alkali Lignin ◽  
Higher Temperature ◽  
Effects Of Temperature

Alkali lignin (AL) was used as a polyanion to form layer-by-layer self-assembled film with PDAC as a polycation. The effects of temperature and concentration on the adsorption characteristics of AL were investigated. Iodine was added into AL solutions to study the role of π-π interaction in self-assembly of AL and PDAC. Results show that the self-assembly of AL/PDAC is mainly driven by π-π interaction and electrostatic interaction. A higher temperature or a larger concentration can enhance the aggregation of lignin. I2 can form lignin–iodine charge–transfer complexes with AL to reduce the degree of aggregation of AL, so the adsorbed amount of AL decreases significantly with increasing iodine contents.

scholarly journals From Awe to Ecological Behavior: The Mediating Role of Connectedness to Nature

2018 ◽  
Vol 10 (7) ◽  
pp. 2477 ◽  
Author(s):  
Yan Yang ◽  
Jing Hu ◽  
Fengjie Jing ◽  
Bang Nguyen
Keyword(s):  
The Self ◽  
Self Concept ◽  
Connectedness To Nature ◽  
Mediating Role ◽  
Nature Study ◽  
Ecological Behavior ◽  
The Relationship

Awe is a self-transcendent emotion that can diminish one’s focus on the self and serves as an important motivator of commitment to social collectives. However, the influence of awe on ecological behavior is not clear. This study examines the relationships between people’s feeling of awe, their connectedness to nature, and ecological behavior. Three experiments tested the effect of awe on ecological behaviors including mediation tests. Compared with participants in the control condition, participants in the awe condition were more inclined to behave ecologically (Study 1 and 2) and reported a higher feeling of connectedness to nature (Study 2). Moreover, the relationship between awe and ecological behavior was mediated by connectedness to nature (Study 3). These findings indicate that awe helps broaden the self-concept by including nature and increase connectedness to nature, which in turn lead to ecological behavior. They also highlight the significance of connectedness in explaining why awe increases ecological behavior.

On the Role of Chirality in Guiding the Self-Assembly of Peptides

2017 ◽  
Vol 129 (43) ◽  
pp. 13473-13477 ◽  
Author(s):  
Shibaji Basak ◽  
Ishwar Singh ◽  
Annaleizle Ferranco ◽  
Jebreil Syed ◽  
Heinz-Bernhard Kraatz
Keyword(s):  
Self Assembly ◽  
The Self

Equity and the Right to Do Wrong

2020 ◽  
pp. 72-91
Author(s):  
Andrew S Gold
Keyword(s):  
The State ◽  
The Self ◽  
Role Of The State ◽  
The Right ◽  
The Relationship ◽  
Private Litigation ◽  
Better Than

This chapter discusses how the ‘stickler-enjoining’ account of equity has important limits. While many distinctive doctrines of equity can be understood to limit stickler behaviour, equity in fact often turns a blind eye to, and sometimes even enables, stickler behaviour. One can sort cases in which equity restrains sticklers from those in which it is indifferent to stickler behaviour if one attends to the role of the state in private litigation. Sometimes the state’s responsibilities require it to protect plaintiffs against sticklers. Other times, it requires it to protect the stickler, as a means, for example, of keeping as open as possible each person’s sphere of choices. Ultimately, the self-regarding account of equity sheds light on the question of the relationship between equity and justice: from the distinct perspective of the judgment, sometimes equitable justice is better than legal justice and sometimes legal justice is better than equitable justice.

Visual Access and Excess

2020 ◽  
pp. 149-185
Author(s):  
Sreedeep Bhattacharya
Keyword(s):  
Social Consequences ◽  
The Self ◽  
Visual Access ◽  
The Relationship ◽  
Networked Devices

This chapter conceptualizes several aspects of digital remediations in an era of restless digital navigation. The instantaneous creation and sharing of content altering the relationship between bodies, spaces, and devices is demonstrated here. The first section of the chapter addresses various aspects of digital remediations such as screen-mediated navigations and the multifarious role of networked devices, social consequences of the intimacy between body and device, and instantaneous modes of sharing and their implications. The second segment reflects on dimensions of the post-photographic condition such as unlimited storage, ease and excess of auto-voyeuristic tendencies, publicizing the private self, death of the photographic ‘lack’, ‘fixity’, ‘nostalgia’, the witlessness/weightlessness of the visual excess, the ease of visual manipulation and the democratization of the medium, and the death of the photographer. It also briefly discusses the control and manipulation of the self-generated data.

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