scholarly journals Relationship between Dreaming and Memory Reconsolidation

2018 ◽  
Vol 4 (2) ◽  
pp. 118-130
Author(s):  
Hongyi Zhao ◽  
Dandan Li ◽  
Xiuzhen Li

Dreaming is a ubiquitous phenomenon in human beings and has been discussed, researched, and hypothesized since a long time. The substrate, physiological mechanism, and function of dreaming have been explained by many scientists from the neurological, psychiatric, psychological, and philosophical perspective. With the development of scientific technology, many theories of dreaming have been established. In the present review, we first summarize the different theories of dreaming; furthermore, we introduce memory consolidation and reconsolidation. Lastly, we propose that memory might be associated with memory reconsolidation and list the explanations.

2020 ◽  
Vol 27 (3) ◽  
pp. 201-209
Author(s):  
Syed Saqib Ali ◽  
Mohammad Khalid Zia ◽  
Tooba Siddiqui ◽  
Haseeb Ahsan ◽  
Fahim Halim Khan

Background: Ascorbic acid is a classic dietary antioxidant which plays an important role in the body of human beings. It is commonly found in various foods as well as taken as dietary supplement. Objective: The plasma ascorbic acid concentration may range from low, as in chronic or acute oxidative stress to high if delivered intravenously during cancer treatment. Sheep alpha-2- macroglobulin (α2M), a human α2M homologue is a large tetrameric glycoprotein of 630 kDa with antiproteinase activity, found in sheep’s blood. Methods: In the present study, the interaction of ascorbic acid with alpha-2-macroglobulin was explored in the presence of visible light by utilizing various spectroscopic techniques and isothermal titration calorimetry (ITC). Results: UV-vis and fluorescence spectroscopy suggests the formation of a complex between ascorbic acid and α2M apparent by increased absorbance and decreased fluorescence. Secondary structural changes in the α2M were investigated by CD and FT-IR spectroscopy. Our findings suggest the induction of subtle conformational changes in α2M induced by ascorbic acid. Thermodynamics signatures of ascorbic acid and α2M interaction indicate that the binding is an enthalpy-driven process. Conclusion: It is possible that ascorbic acid binds and compromises antiproteinase activity of α2M by inducing changes in the secondary structure of the protein.


Nature ◽  
2003 ◽  
Vol 425 (6958) ◽  
pp. 616-620 ◽  
Author(s):  
Matthew P. Walker ◽  
Tiffany Brakefield ◽  
J. Allan Hobson ◽  
Robert Stickgold

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Volker Abetz ◽  
Torsten Brinkmann ◽  
Mustafa Sözbilir

Abstract The paper gives an introduction to membrane science and technology, an area of research of high significance for the development of a sustainable life for human beings. It is therefore intended to be a guide for teachers in the areas of chemistry, physics, or biology, who can incorporate the presented materials in their respective courses. The paper gives some insights into the different types of membranes, their functions, production and use in some selected areas.


2021 ◽  
Author(s):  
Marciano Tribess

This book presents the influence exerted by the media on children and adolescents in relation to the early experimentation with psychoactive substances. And the pedagogical-theological intervention as a preventive strategy. The influence on the human being through media mechanisms that condition him to the action expected by the conditioning, has been studied for a long time, by several authors such as Aldous Huxley with his book "Admirável Mundo Novo" that already addressed the conditionality of the human since the decade of 30. In the following decades, other theorists such as Edgar Morin and Guy Debord, analyzed how the human being is conditioned through mass culture and the society of the spectacle. The reality presented in relation to the conditioning of children and adolescents through the media has propelled the author, to seek preventive ways regarding the conditionality of human beings through the media. For that, it analyzed theorists like Paulo Freire and Michel Henry and their discoveries about the mediation of knowledge and the analysis of the Words of Christ and how they can contribute in the elaboration of pedagogical-theological interventions.


Author(s):  
Zsolt Adorjáni

AbstractThis paper deals with a notorious interpretive crux of Alcman’s Louvre-Partheneion: the identity of the Πεληάδες and the meaning and function of the φᾶρος. The article attempts to make sense of the debated verses in their context, highlighting Alcman’s subtle praise of human beings against the foil of the divine.


2016 ◽  
Vol 113 (26) ◽  
pp. 7272-7277 ◽  
Author(s):  
Lauren N. Whitehurst ◽  
Nicola Cellini ◽  
Elizabeth A. McDevitt ◽  
Katherine A. Duggan ◽  
Sara C. Mednick

Throughout history, psychologists and philosophers have proposed that good sleep benefits memory, yet current studies focusing on the relationship between traditionally reported sleep features (e.g., minutes in sleep stages) and changes in memory performance show contradictory findings. This discrepancy suggests that there are events occurring during sleep that have not yet been considered. The autonomic nervous system (ANS) shows strong variation across sleep stages. Also, increases in ANS activity during waking, as measured by heart rate variability (HRV), have been correlated with memory improvement. However, the role of ANS in sleep-dependent memory consolidation has never been examined. Here, we examined whether changes in cardiac ANS activity (HRV) during a daytime nap were related to performance on two memory conditions (Primed and Repeated) and a nonmemory control condition on the Remote Associates Test. In line with prior studies, we found sleep-dependent improvement in the Primed condition compared with the Quiet Wake control condition. Using regression analyses, we compared the proportion of variance in performance associated with traditionally reported sleep features (model 1) vs. sleep features and HRV during sleep (model 2). For both the Primed and Repeated conditions, model 2 (sleep + HRV) predicted performance significantly better (73% and 58% of variance explained, respectively) compared with model 1 (sleep only, 46% and 26% of variance explained, respectively). These findings present the first evidence, to our knowledge, that ANS activity may be one potential mechanism driving sleep-dependent plasticity.


Prostor ◽  
2021 ◽  
Vol 29 (1 (61)) ◽  
pp. 118-129
Author(s):  
Ljiljana Vujadinović ◽  
Svetlana K. Perović

This paper is studying influence of new technologies on city development with accent on socio-spatial dimension. The primary goal of the paper is to point out the reflections of earlier ideas in the context of modern technological processes in cities. All social, technical and technological components of a community, and finally civilization, are reflected within space of the city. Although having remained the greatest consumer of many material goods, city has also become a ‘’producer’’ of many technical-technological and spiritual values of civilization. Taking into account acceleration of phenomena in the world of technology and technology featuring modernity, it reasonably brings a question on realistic chance for prediction of their further course and related social changes that are about to cause it. In many scenarios of urban future, one can sense the idea of a city as a result of high technological achievements of civilization. Special attention is paid on informational city which, connecting a lot of people into systems of interactive information technology change the way of their mutual communication, as well as their social life and culture of behaviour. Measure of organization and function of city is set by telecommunication technologies, information, and computers. If city is a ‘’print of a society in space’’, then a contemporary moment refers to ‘’digitalization’’ of human beings, digitalization of their interactions, new aesthetics, value and other criteria. The tendency of this paper is to contribute to the understanding of new technologies on 21st century cities interpreted primarily through the prism of certain theoretical and experimental ideas and concepts of the 20th century.


2017 ◽  
Vol 8 (1) ◽  
pp. 343-358
Author(s):  
Leszek Skowroński

At the beginning of Book I of the Nicomachean Ethics, Aristotle says that “the good is the same for an individual as for a city”. The good in question is εὐδαιμονία – the highest good achievable for human beings. In Book X, we learn that contemplative activity (θεωρητική) meets best the requirements set for eudaimonia. Even if we agree that contemplative activity is the good for an individual, how should we understand the claim that contemplation is also the good for a city? I start by reminding readers that for Aristotle the Nicomachean Ethics is essentially a political enquiry and should be read together with his Politics. I focus on the teleological character of his political philosophy and the interlinking of the concepts of the good (τἀγαθόν), nature (φύσις), form (τὸ εἶδος, τὸ τί ἐστι, ἡ μορφή), end (τέλος, τὸ οὗ ἕνεκα) and function (ἔργον). Then, I look at Aristotle’s two closely-connected statements that polis exists by nature and that men are political animals. Having taken into account Aristotle’s opinion regarding the imperfection of this world, which is exemplified by the vulnerability of human lives to fortune, luck and accidents, I conclude that Alasdair MacIntyre’s concept of the political community as a common project explains well how contemplation could be the end of polis. Only very few individuals can achieve the highest good and they can do it only if they have the support of the political community. But all the inhabitants of a polis structured towards achieving the highest good benefit from living in a well-ordered community whose constitution reflects the objective hierarchy of goods.


2009 ◽  
Vol 1 (2) ◽  
pp. 25
Author(s):  
Agung Prabowo

Mathematical philosophy doesn’t add a number of new mathematical theorems or teories, so mathematical phylosophy is not mathematics. Mathematical phylosophy is a reflection on mathematics. After having studied for a long time, one need to reflect the result of the study by reflecting it to mathematical phylosophy. This article discusses the mathematical phylosophy streams and their role and function, and describes formalism mathematical phylosophy specially.


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