scholarly journals Composites between Perovskite and Layered Co-Based Oxides for Modification of the Thermoelectric Efficiency

Materials ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 7019
Author(s):  
Sonya Harizanova ◽  
Eric Faulques ◽  
Benoit Corraze ◽  
Christophe Payen ◽  
Marcin Zając ◽  
...  
Keyword(s):  
Seebeck Coefficient ◽  
Thermoelectric Efficiency ◽  
Alternative Approach ◽  
Multiphase Composites ◽  
The Common ◽  
The Individual ◽  
Composite Interfaces ◽  
Thermal Conductivity Λ ◽  
Properties Of Composites ◽  
Thermal Conductivities

The common approach to modify the thermoelectric activity of oxides is based on the concept of selective metal substitution. Herein, we demonstrate an alternative approach based on the formation of multiphase composites, at which the individual components have distinctions in the electric and thermal conductivities. The proof-of-concept includes the formation of multiphase composites between well-defined thermoelectric Co-based oxides: Ni, Fe co-substituted perovskite, LaCo0.8Ni0.1Fe0.1O3 (LCO), and misfit layered Ca3Co4O9. The interfacial chemical and electrical properties of composites are probed with the means of SEM, PEEM/XAS, and XPS tools, as well as the magnetic susceptibility measurements. The thermoelectric power of the multiphase composites is evaluated by the dimensionless figure of merit, ZT, calculated from the independently measured electrical resistivity (ρ), Seebeck coefficient (S), and thermal conductivity (λ). It has been demonstrated that the magnitude’s electric and thermal conductivities depend more significantly on the composite interfaces than the Seebeck coefficient values. As a result, the highest thermoelectric activity is observed at the composite richer on the perovskite (i.e., ZT = 0.34 at 298 K).

scholarly journals Justifying Limitations on the Freedom of Expression

2020 ◽  
Author(s):  
Gehan Gunatilleke
Keyword(s):  
Public Health ◽  
National Security ◽  
Freedom Of Expression ◽  
The State ◽  
Public Order ◽  
Alternative Approach ◽  
The World ◽  
The Common ◽  
Proportionality Test ◽  
The Individual

Abstract The freedom of expression is vital to our ability to convey opinions, convictions, and beliefs, and to meaningfully participate in democracy. The state may, however, ‘limit’ the freedom of expression on certain grounds, such as national security, public order, public health, and public morals. Examples from around the world show that the freedom of individuals to express their opinions, convictions, and beliefs is often imperilled when states are not required to meet a substantial justificatory burden when limiting such freedom. This article critiques one of the common justificatory approaches employed in a number of jurisdictions to frame the state’s burden to justify limitations on the freedom of expression—the proportionality test. It presents a case for an alternative approach that builds on the merits and addresses some of the weaknesses of a typical proportionality test. This alternative may be called a ‘duty-based’ justificatory approach because it requires the state to demonstrate—through the presentation of publicly justifiable reasons—that the individual concerned owes others a duty of justice to refrain from the expressive conduct in question. The article explains how this approach is more normatively compelling than a typical proportionality test. It also illustrates how such an approach can better constrain the state’s ability to advance majoritarian interests or offload its positive obligations by limiting the freedom of expression of minorities and dissenting voices.

The Red Neuronal Pigment in the Nervous System of the Mussel, Mytilus Edulis: Localization and Its Effect on Lateral Ciliary Activity with Spectral and Analytical Changes

1981 ◽  
Vol 39 ◽  
pp. 494-495
Author(s):  
Anthony A. Paparo ◽  
Judith A. Murphy
Keyword(s):  
Nervous System ◽  
Mytilus Edulis ◽  
Neuronal Cell ◽  
Ciliary Activity ◽  
Neuronal Cell Bodies ◽  
The Central Nervous System ◽  
Intracellular Organelles ◽  
The Common ◽  
The Individual ◽  
Cryostat Sections

The purpose of this study was to localize the red neuronal pigment in Mytilus edulis and examine its role in the control of lateral ciliary activity in the gill. The visceral ganglia (Vg) in the central nervous system show an over al red pigmentation. Most red pigments examined in squash preps and cryostat sec tions were localized in the neuronal cell bodies and proximal axon regions. Unstained cryostat sections showed highly localized patches of this pigment scattered throughout the cells in the form of dense granular masses about 5-7 um in diameter, with the individual granules ranging from 0.6-1.3 um in diame ter. Tissue stained with Gomori's method for Fe showed bright blue granular masses of about the same size and structure as previously seen in unstained cryostat sections.Thick section microanalysis (Fig.l) confirmed both the localization and presence of Fe in the nerve cell. These nerve cells of the Vg share with other pigmented photosensitive cells the common cytostructural feature of localization of absorbing molecules in intracellular organelles where they are tightly ordered in fine substructures.

What Can Economists Contribute to the Common Good Tradition?

2017 ◽  
Author(s):  
Andrew M. Yuengert
Keyword(s):  
Common Good ◽  
Common Pool Resources ◽  
Economic Approach ◽  
Public And Private ◽  
Private Provision ◽  
The Public ◽  
The Common Good ◽  
The Common ◽  
The Individual ◽  
Insight Into

Although most economists are skeptical of or puzzled by the Catholic concept of the common good, a rejection of the economic approach as inimical to the common good would be hasty and counterproductive. Economic analysis can enrich the common good tradition in four ways. First, economics embodies a deep respect for economic agency and for the effects of policy and institutions on individual agents. Second, economics offers a rich literature on the nature of unplanned order and how it might be shaped by policy. Third, economics offers insight into the public and private provision of various kinds of goods (private, public, common pool resources). Fourth, recent work on the development and logic of institutions and norms emphasizes sustainability rooted in the good of the individual.

Punk as Folk: Continuities and Tensions in the UK and Beyond

2020 ◽  
Author(s):  
Pete Dale
Keyword(s):  
Folk Music ◽  
Music Making ◽  
Collective Creativity ◽  
Living Tradition ◽  
Wide Range ◽  
The Us ◽  
The Common ◽  
The Individual ◽  
The Uk

Numerous claims have been made by a wide range of commentators that punk is somehow “a folk music” of some kind. Doubtless there are several continuities. Indeed, both tend to encourage amateur music-making, both often have affiliations with the Left, and both emerge at least partly from a collective/anti-competitive approach to music-making. However, there are also significant tensions between punk and folk as ideas/ideals and as applied in practice. Most obviously, punk makes claims to a “year zero” creativity (despite inevitably offering re-presentation of at least some existing elements in every instance), whereas folk music is supposed to carry forward a tradition (which, thankfully, is more recognized in recent decades as a subject-to-change “living tradition” than was the case in folk’s more purist periods). Politically, meanwhile, postwar folk has tended more toward a socialist and/or Marxist orientation, both in the US and UK, whereas punk has at least rhetorically claimed to be in favor of “anarchy” (in the UK, in particular). Collective creativity and competitive tendencies also differ between the two (perceived) genre areas. Although the folk scene’s “floor singer” tradition offers a dispersal of expressive opportunity comparable in some ways to the “anyone can do it” idea that gets associated with punk, the creative expectation of the individual within the group differs between the two. Punk has some similarities to folk, then, but there are tensions, too, and these are well worth examining if one is serious about testing out the common claim, in both folk and punk, that “anyone can do it.”

Can Communities Protect Autonomy? Ethical Dilemmas in HIV Preventative Drug Trials

1995 ◽  
Vol 4 (4) ◽  
pp. 516-523 ◽  
Author(s):  
Deborah Zion
Keyword(s):  
Advance Directive ◽  
Common Good ◽  
Ethical Dilemmas ◽  
Drug Trials ◽  
The Common Good ◽  
Gay Community ◽  
The Common ◽  
The Individual ◽  
Trial Participants

Before sailing past the sirens' “flowery meadow,” Ulysses instructed his sailors to lash him to the mast so that he would not succumb to the siren's singing. His advance directive demonstrated that he valued his dispositional or long-term autonomy over his unquestioned right to make decisions. He also indicated to his oarsmen that he understood the nature of temptation and his inability to resist it. Ideas of autonomy and sexual choice are central to this discussion of new AIDS treatments, especially the trials of preventative vaccines. Questions arise over the rights of individuals and the extent that these should be limited by concerns of the gay community. Should the gay community intervene in the risky decisions of individuals if no explicit advance directive exists? If so, how do they justify their paternalism? Could their aims not be better served through strengthening the individual dispositional autonomy of trial participants rather than making specific claims about the common good?

Understanding the Effects of Mindfulness Meditation Combined With Aromatherapy, to Enhance the Wellbeing of MCAST ICS Lecturers: A Narrative Study

2021 ◽  
Vol 5 (1) ◽  
pp. 4-39
Author(s):  
Nadia Cauchi
Keyword(s):  
Narrative Analysis ◽  
Mindfulness Meditation ◽  
Work And Family ◽  
Self Awareness ◽  
Narrative Study ◽  
Individual Interviews ◽  
Inquiry Approach ◽  
The Common ◽  
Mindful Meditation ◽  
The Individual

This study looks at the effects of the combined practice of mindful meditation and aromatherapy on the wellbeing of MCAST ICS lecturers, potentially providing resources that can help them deal with various stressors. Each practice is supported with literature underlining its effects towards a holistic wellbeing. The researcher uses a qualitative narrative inquiry approach to draw meaning and understanding out of the participants’ experiences. Three MCAST ICS lecturers participated in this study. Their background in health care enables them to relate better with the benefits of mindful meditation and aromatherapy. The research design of this study consists of four stages; a pre-session held with the three participants, weekly mindful meditation sessions for six weeks, individual interviews with each participant, followed by a focus group. Three of the six sessions included aromatherapy and a mindful journal was kept throughout the sessions. The analysis format could either develop as an analysis of narrative or narrative of analysis. In this study both formats were used, however, due to the word count limit only the analysis of narrative is seen. The researcher elicited whole segments from the individual transcripts to develop various themes. To examine the data for the emergent themes the researcher chose to use thematic narrative analysis as it focuses on the ‘told’ (Riessman 2008). In this case the ‘told’ is what helped identify the common patterns found across the narratives. As themes started to emerge, whenever possible the researcher used the MAXQDA software to facilitate the process. Mindful meditation was found to lead to a series of events that enhance self-awareness, thus enhancing holistic wellbeing and positively effecting the individual’s approach towards work and family. This can be achieved because mindful meditation has the potential to enhance one’s social skills, soft skills, and emotional intelligence. Furthermore, combining aromatherapy with mindful meditation was found to positively enhance one’s experience. However, it was not the only decisive factor since the ambience was also an influencer.

QUALITY OF LIFE ASSESSMENT IN PATIENTS WITH ARTERIAL HYPERTENSION (LITERATURE REVIEW)

2021 ◽  
Author(s):  
OLGA MOSKALENKO ◽  
ROMAN YASKEVICH
Keyword(s):  
Quality Of Life ◽  
Arterial Hypertension ◽  
Current Problem ◽  
Life Assessment ◽  
Review Of The Literature ◽  
Quality Of Life Assessment ◽  
The Common ◽  
The Individual ◽  
Satisfactory Quality

A review of the literature on the current problem of medicine is presented. Arterial hypertension is one of the common chronic diseases for which the current goal of therapy is not recovery, but improvement of circulatory function with a satisfactory quality of life. The study of QOL and the factors influencing it can contribute to an increase in the individual effectiveness of treatment and complex rehabilitation of patients suffering from this pathology.

scholarly journals Biomechanical Aspects of Closing Approaches in Postcarotid Endarterectomy

2018 ◽  
Vol 2018 ◽  
pp. 1-10
Author(s):  
Idit Avrahami ◽  
Dafna Raz ◽  
Oranit Bash
Keyword(s):  
Carotid Bifurcation ◽  
Stress And Strain ◽  
Surgery Complications ◽  
Artery Wall ◽  
Strain Fields ◽  
Structure Interaction ◽  
Cerebral Blood Supply ◽  
Patch Angioplasty ◽  
Alternative Approach ◽  
The Common

The carotid bifurcation tends to develop atherosclerotic stenoses which might interfere with cerebral blood supply. In cases of arterial blockage, the common clinical solution is to remove the plaque via carotid endarterectomy (CEA) surgery. Artery closure after surgery using primary closures along the cutting edge might lead to artery narrowing and restrict blood flow. An alternative approach is patch angioplasty which takes longer time and leads to more during-surgery complications. The present study uses numerical methods with fluid-structure interaction (FSI) to explore and compare the two solutions in terms of hemodynamics and stress and strain fields developed in the artery wall.

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