scholarly journals Microalgal Diet Influences the Nutritive Quality and Reproductive Investment of the Cyclopoid Copepod Paracyclopina nana

2021 ◽  
Vol 8 ◽  
Author(s):  
Paul Dayras ◽  
Capucine Bialais ◽  
Irina Sadovskaya ◽  
Min-Chul Lee ◽  
Jae-Seong Lee ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Mass Culture ◽  
Reproductive Investment ◽  
Single Species ◽  
Monosaccharide Composition ◽  
Live Food ◽  
Cyclopoid Copepod ◽  
Nutritive Quality ◽  
Brine Shrimps ◽  
The Individual

Copepods represent an interesting alternative or a complement live food to brine shrimps and rotifers commonly used in aquaculture. They constitute the natural prey of many fish species and therefore do not require a potential nutritional enrichment. But an optimization of the microalgal diets used to feed copepods is essential to improve their mass culture. This study examined the effects of seven microalgal diets, namely single-species diets of Rhodomonas salina (R), Tisochrysis lutea (T), and Pavlova lutheri (=Diacronema lutheri) (P), two-species diets (R + T, T + P, and R + P), and a three-species diet (R + T + P), on the fatty acid and monosaccharide composition of the cyclopoid copepod Paracyclopina nana as well as its reproductive investment. Experiments were run during 15 days in 10-L beakers; starting with nauplii collected from a large 300-L batch culture. Copepods fatty acid contents were studied, particularly the relative amounts of docosahexaenoic acid (DHA) and eicosa-pentaenoic acid (EPA). The R + T, R, and T diets induced the highest total fatty acid amount in copepods. R + T and R also generated the lowest DHA/EPA ratios in copepods due to high EPA contents. The highest value of total monosaccharides was found in copepods fed with R + T + P. Diets R + T and R induced the greatest prosome volumes and clutch volumes in ovigerous females. Both prosome volume and clutch volume in P. nana ovigerous females were correlated to the individual EPA amount. The results demonstrated that all diets including R. salina enhanced the productivity of P. nana in mass culture, particularly when combined with T. lutea. R. salina, and T. lutea induced complementary fatty acid and monosaccharide profiles, confirming that R + T represents the best microalgae combination for productive culture of P. nana. Conversely, P. lutheri did not enhance the nutritional profile nor the fecundity of P. nana in the culture. This study is the first to demonstrate that R. salina is a suitable microalga for productive mass culture of P. nana for use as live food in aquaculture.

УКРАЇНОЗНАВЧИЙ ОСВІТНІЙ ЧИННИК В УМОВАХ СУЧАСНОЇ УКРАЇНСЬКОЇ МАСОВОЇ КУЛЬТУРИ

2019 ◽  
pp. 22-29
Author(s):  
Н. В. Фрадкіна
Keyword(s):  
Mass Culture ◽  
Personal Development ◽  
Negative Impact ◽  
Educational Process ◽  
Point Of View ◽  
Character Trait ◽  
Main Task ◽  
Leading Role ◽  
The Individual

The purpose and tasks of the work are to analyze the contemporary Ukrainian mass culture in terms of its value and humanistic components, as well as the importance of cultural studies and Ukrainian studies in educational disciplines for the formation of a holistic worldview of modern youth.Analysis of research and publications. Scientists repeatedly turned to the problems of the role of spirituality in the formation of society and its culture. This problem is highlighted in the publications by O. Losev, V. Lytvyn, D. Likhachev, S. Avierintsev, M. Zakovych, I. Stepanenko and E. Kostyshyn.Experts see the main negative impact of mass culture on the quality approach, which determines mass culture through the market, because mass culture, from our point of view, is everything that is sold and used in mass demand.One of the most interesting studies on this issue was the work by the representatives of Frankfurt School M. Horkheimer and T. Adorno «Dialectics of Enlightenment» (1947), devoted to a detailed analysis of mass culture. Propaganda at all socio-cultural levels in the form is similar in both totalitarian and democratic countries. It is connected, according to the authors, with the direction of European enlightenment. The tendency to unify people is a manifestation of the influence of mass culture, from cinema to pop. Mass culture is a phenomenon whose existence is associated with commerce (accumulation in any form – this is the main feature of education), in general, the fact that it exists in this form is related to the direction of the history of civilization.Modern mass culture, with its externally attractive and easily assimilated ideas and symbols, appealing to the trends of modern fashion, becomes a standard of prestigious consumption, does not require intense reflection, allows you to relax, distract, not teach, but entertains, preaches hedonism as the main spiritual value. And as a consequence, there are socio-cultural risks: an active rejection of other people, which leads to the formation of indifference; cruelty as a character trait; increase of violent and mercenary crime; increase in the number of alcohol and drug addicts; anti-patriotism; indifference to the values of the family and as a result of social orphanhood and prostitution.Conclusions, perspectives of research. Thus, we can conclude that modern Ukrainian education is predominantly formed by the values of mass culture. Namely, according to the «Dialectic» by Horkheimer and Adorno, «semi-enlightenment becomes an objective spirit» of our modern society.It is concluded that only high-quality education can create the opposite of the onset of mass culture and the destruction of spirituality in our society. It is proved that only by realizing the importance of cultivating disciplines in the educational process and the spiritual upbringing of the nation, through educational reforms, humanitarian knowledge will gradually return to student audiences.Formation of youth occurs under the influence of social environment, culture, education and self-education. The optimal combination of these factors determines both the process of socialization itself and how successful it will be. In this context, one can see the leading role of education and upbringing. It turns out that the main task of modern education is to spread its influence on the development of spiritual culture of the individual, which eventually becomes a solid foundation for the formation of the individual. Such a subject requires both philosophical and humanitarian approaches in further integrated interdisciplinary research, since the availability of such research will provide the theoretical foundation for truly modern educational and personal development.

ВИХОВНИЙ ПОТЕНЦІАЛ УРОКІВ ЧИТАННЯ ДЛЯ ФОРМУВАННЯ ТОЛЕРАНТНОСТІ МОЛОДШИХ ШКОЛЯРІВ

2021 ◽  
Vol 1 (2) ◽  
pp. 89-96
Author(s):  
O. I. POPOVA ◽  
◽  
A. S. LESYK ◽  
Keyword(s):  
Primary School ◽  
Mass Culture ◽  
Special Kind ◽  
Moral Choice ◽  
School Students ◽  
Self Presentation ◽  
Experimental Learning ◽  
The World ◽  
The Individual ◽  
Educational Potential

The article emphasizes that the world around us sets its own requirements for the ability of a junior student to adapt to it, to his tolerant willingness to build constructive relationships with others. In reading lessons, which aim, among other things, to form the values of primary school students, they learn to choose an individual way of self-presentation, behavior and communication. The task of the teacher is to teach to observe life, to notice human kindness, sacrifice, courage, as well as heartlessness, cruelty, indifference. Hence the signs of a tolerant personality, such as patience, indulgence, tolerance for differences, kindness, the ability to listen to others, not to judge others, to take their position, the ability to empathize, humanism. The updated content of literary material, which comprehensively covers the sphere of interests of junior schoolchildren, its emotionality, novelty, decoration, interesting forms and methods of working with texts of works and children's books with preference to problematic, creative tasks should convince students that fiction is a special kind of art, and reading – a special, unique means of satisfying cognitive interests, knowledge of the world and self-knowledge, which can not be replaced by any other means of mass culture. In the process of experimental learning, we tried to design and implement such types of educational activities of students, which contributed to the formation of tolerance in them as the most important value of the individual. After analyzing some aspects of updating the content and methodology of reading lessons in primary school in the context of implementing the ideas of tolerant education, we note that the new textbooks and manuals for extracurricular reading contain many texts with the potential for educating this quality of personality. actions of characters; to feel the state of another person, to make a moral choice. Key words: formation of tolerance in junior schoolchildren, reading lessons, educational potential of reading lessons, formation of personality of junior schoolchildren.

scholarly journals It Cuts Both Ways: An Annelid Model System for the Study of Regeneration in the Laboratory and in the Classroom

2021 ◽  
Vol 9 ◽  
Author(s):  
Veronica G. Martinez Acosta ◽  
Fausto Arellano-Carbajal ◽  
Kathy Gillen ◽  
Kay A. Tweeten ◽  
Eduardo E. Zattara
Keyword(s):  
Wound Healing ◽  
Developmental Process ◽  
Recovery Of Function ◽  
Single Species ◽  
Model System ◽  
Regenerative Capacity ◽  
Closely Related Species ◽  
Complete Replacement ◽  
Successful Recovery ◽  
The Individual

The mechanisms supporting regeneration and successful recovery of function have fascinated scientists and the general public for quite some time, with the earliest description of regeneration occurring in the 8th century BC through the Greek mythological story of Prometheus. While most animals demonstrate the capacity for wound-healing, the ability to initiate a developmental process that leads to a partial or complete replacement of a lost structure varies widely among animal taxa. Variation also occurs within single species based on the nature and location of the wound and the developmental stage or age of the individual. Comparative studies of cellular and molecular changes that occur both during, and following, wound healing may point to conserved genomic pathways among animals of different regenerative capacity. Such insights could revolutionize studies within the field of regenerative medicine. In this review, we focus on several closely related species of Lumbriculus (Clitellata: Lumbriculidae), as we present a case for revisiting the use of an annelid model system for the study of regeneration. We hope that this review will provide a primer to Lumbriculus biology not only for regeneration researchers but also for STEM teachers and their students.

scholarly journals THE PROBLEM OF MODERN TV-HERO'S MORAL QUALITIES

2020 ◽  
pp. 50-54
Author(s):  
M. I. Korobko
Keyword(s):  
Mass Culture ◽  
World Order ◽  
Young Generation ◽  
Social Functions ◽  
World Crisis ◽  
Moral Boundaries ◽  
Tv Shows ◽  
Teaching Function ◽  
The Individual ◽  
Global World

The article is an effort to analyze the image of the modern television hero. Who is he? A hero or a villain? The analysis of modern protagonists is given through ethical and film theories. The problem of clarity of moral boundaries is very important in the light of the trend, which popularizes villains as normal people in modern storytelling, moral boundaries are blurring because of attraction of such heroes. According to Chapman scholars, the functions of modern "bad boy" as an architype are: a) bad boys have the strength to give us freedom at the personal and societal levels; b) a bad boy with a critical view of society can emancipate us on both personal and societal levels; c) bad boy's criticism can lead him to become isolated or withdrawn on a personal level or become a leader of resistance and rebellion on a societal level; d) the comedic bad boy parallels the evils of society and can shed a critical light on what is happening, which in turn can express the need for resistance as well as encourage the individual to retreat from social functions and live in an isolated manner. The complexity of people implies the bad boy limitless in determination because the bad boy appears in many shapes. Many modern heroes in movies and tv-shows are morally ambivalent, they combine features of Hero and Trickster archetypes and become bad boys and girls who question the very essence of our world order. Today there are so many characters like this in mass-culture (tv-series, movies and cartoons) because we live in time of the global world crisis and our culture reflects this, our heroes demonstrate us our problems and try to find a solution. And sometimes the classic understanding of morality can't help us and we are trying to solve the problems through immoral actions. Villains are attractive through their rebellion. Today we can't find clarity of moral boundaries in tv-shows. But it's very important. The influence of series and movies on the young generation is enormous. Cinematography in all forms (cinema and television) is very powerful ethical instrument. And it is not just the mirror of human morality but it has a teaching function too.

scholarly journals Photosensitization to ultraviolet irradiation and selective killing of cells following uptake of pyrene-containing fatty acid

1986 ◽  
Vol 85 (1) ◽  
pp. 149-159
Author(s):  
E. Fibach ◽  
O. Morand ◽  
S. Gatt
Keyword(s):  
Fatty Acid ◽  
Ultraviolet Irradiation ◽  
Plasma Membranes ◽  
Incubation Temperature ◽  
Serum Proteins ◽  
Neutral Lipids ◽  
Cell Types ◽  
Dodecanoic Acid ◽  
A Cell ◽  
The Individual

Cells were incubated with 12-(1-pyrene)-dodecanoic acid (P12), a long-chain fatty acid to which a pyrene ring has been attached covalently. This acid was transported across the plasma membranes of cells and subsequently incorporated into their neutral lipids and phospholipids. Irradiation of these pyrene-containing cells for short periods (0.5-4 min) with ultraviolet light at 366 nm resulted in eventual cell death. Similar irradiation had no effect on cells that had not been exposed to P12. The time of the period of irradiation necessary for inducing the toxic process was related to the quantity of P12 incorporated, the latter being a function of the respective metabolic activity of the individual cell type. The degree of incorporation of P12 into a cell, and consequently its acquired sensitivity to killing by ultraviolet irradiation at 366 nm, was affected by the incubation temperature and addition of non-fluorescent fatty acid, albumin or other serum proteins. Different degrees of incorporation of P12 into various cell types were used for selective killing and elimination of cell populations by irradiation at 366 nm. The combined procedure of preincubation with P12 followed by ultraviolet irradiation thus permitted selection of cell types with a greater resistance to this procedure.

3. Critical theory and modernism

2017 ◽  
pp. 30-38
Author(s):  
Stephen Eric Bronner
Keyword(s):  
Nineteenth Century ◽  
Critical Theory ◽  
Social Norms ◽  
Mass Culture ◽  
Frankfurt School ◽  
Cultural Resistance ◽  
Avant Garde ◽  
Experimental Art ◽  
Mass Society ◽  
The Individual

The end of the nineteenth century witnessed the birth of an international avant-garde that focused upon alienation, standardization, and the liberation of the individual from constrictive social norms. Impressionists, Cubists, Expressionists, Futurists, Dadaists, Surrealists, and representatives from many other styles provided a blizzard of philosophical–aesthetic manifestos that blended political with cultural resistance to mass society. The Frankfurt School’s inner circle was sympathetic from the start; modernism provided a response to the ontology of false conditions and, indeed, an avant-garde opposition to mass culture provided inspiration and cohesion. ‘Critical theory and modernism’ explains how the unflinching support of modernism and experimental art by the Frankfurt School confirmed both its cultural radicalism and contempt for totalitarianism.

Surfactant dysfunction in diabetic offspring: inhibitors and fatty acid lecithin content

1983 ◽  
Vol 54 (4) ◽  
pp. 1097-1100 ◽  
Author(s):  
I. R. Sosenko ◽  
J. Werthammer ◽  
M. D. Cunningham ◽  
I. D. Frantz
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Fatty Acid Content ◽  
Lavage Fluid ◽  
Cholesterol Content ◽  
Arithmetic Average ◽  
The Individual ◽  
Diabetic Rabbits ◽  
And Control

We have previously demonstrated that the lungs of fetuses of alloxan-diabetic rabbits are functionally immature when compared with controls. In this study we have examined pulmonary lavage fluid from fetuses of diabetic and control does for the presence of a surfactant inhibitor, cholesterol content, and phosphatidylcholine (lecithin) fatty acid content. When lavage fluids from fetuses of control and diabetic does were mixed and examined on the surface balance, the measured surfactant content corresponded to the arithmetic average of the surfactant content of the individual fluids, thus ruling out the presence of an excess of a surfactant inhibitor. We were able to demonstrate inhibition of surfactant function when exogenous cholesterol was added to lavage samples, but cholesterol content of lavage fluid from fetuses of diabetic and control does was not significantly different. Finally, the fatty acid composition of surfactant phosphatidylcholine was not different between the two groups. These studies indicate that mechanisms other than the presence of a surfactant inhibitor or altered fatty acid composition must explain the functional immaturity seen in offspring of the diabetic pregnancy.

THE FORMATION OF GLYCEROPHOSPHATIDES FROM C14-LABELLED PRECURSORS IN RAT BRAIN SLICES

1958 ◽  
Vol 36 (11) ◽  
pp. 1211-1220 ◽  
Author(s):  
E. T. Pritchard
Keyword(s):  
Fatty Acid ◽  
Rat Brain ◽  
Carbohydrate Metabolism ◽  
Liver Tissue ◽  
Brain Slices ◽  
The Other ◽  
Aerobic Conditions ◽  
Liver Slices ◽  
Rat Brain And Liver ◽  
The Individual

The relative incorporation of a number of C14-labelled precursors into the phosphatides of surviving rat brain and liver slices was examined. In addition, the distribution of radioactivity within the individual phosphoglycerides was determined for each precursor. Acetate was the only precursor that contributed considerable radioactivity to the fatty acid portion of the phosphatide molecule. The other precursors donated their radioactivity to the non-fatty acid portion of the glycerophosphatide molecule, both in brain and liver tissue. In brain it was found that ethanolamine was the most effective precursor, followed by serine, choline, glycerol, acetate, and glycine. In liver the order was acetate, glycerol, serine, choline, and glycine. Aerobic conditions and an adequate carbohydrate metabolism were essential for optimum incorporation of the precursors into the phosphatides of brain slices.

THE FORMATION OF GLYCEROPHOSPHATIDES FROM C14-LABELLED PRECURSORS IN RAT BRAIN SLICES

1958 ◽  
Vol 36 (1) ◽  
pp. 1211-1220 ◽  
Author(s):  
E. T. Pritchard
Keyword(s):  
Fatty Acid ◽  
Rat Brain ◽  
Carbohydrate Metabolism ◽  
Liver Tissue ◽  
Brain Slices ◽  
The Other ◽  
Aerobic Conditions ◽  
Liver Slices ◽  
Rat Brain And Liver ◽  
The Individual

The relative incorporation of a number of C14-labelled precursors into the phosphatides of surviving rat brain and liver slices was examined. In addition, the distribution of radioactivity within the individual phosphoglycerides was determined for each precursor. Acetate was the only precursor that contributed considerable radioactivity to the fatty acid portion of the phosphatide molecule. The other precursors donated their radioactivity to the non-fatty acid portion of the glycerophosphatide molecule, both in brain and liver tissue. In brain it was found that ethanolamine was the most effective precursor, followed by serine, choline, glycerol, acetate, and glycine. In liver the order was acetate, glycerol, serine, choline, and glycine. Aerobic conditions and an adequate carbohydrate metabolism were essential for optimum incorporation of the precursors into the phosphatides of brain slices.

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