34 research outputs found
Anica Savic Rebac: la erotología platónica y la estética de la ‘interconexión universal’
Pensadora, erudita y poeta serbia, Anica Savic Rebac (1892-1953) se mueve con ligereza en medio de grandes temas y movimientos humanísticos: la Antigüedad clásica griega, la filosofía medieval, la cultura renacentista o del romanticismo exasperado, que se proyectan al pasado y al futuro de la cultura universal. La concepción del eros platónico es su referencia más continua, desde sus primeras poesías, hasta los ensayos escritos en el último periodo, en los que conecta el pensamiento griego con Dante, Shakespeare, Spinoza, Shelley, Goethe. Como autora del siglo XX, le parece fundamental el cambio de paradigma que este siglo plantea en el campo de la historia de la cultura: el hecho de que la época contemporánea plantea de manera indiscutible que en el campo de la filosofía, literatura y arte no hay que buscar divergencias, sino profundas similitudes internas entre diferentes períodos de su desarrollo. Su obra ha sido calificada de ser ‘tan buena que parece ser escrita por un hombre escrita por un hombre’1 - un comentario que no necesita gran hermenéutica para ilustrar el destino del pensamiento filosófico femenino hasta la actualidad. Sus escritos han sido reeditados y estudiados de manera intensa en las últimas décadas en su país de origen. El presente trabajo presenta su pensamiento por primera vez en el ámbito de habla hispana. A Serbian thinker, poet and scholar, Anica Savic Rebac (1892-1953) moves through the different themes and movements of the Western cultural tradition – from the Greek classical philosophy to the Medieval philosophy, from the Renaissance culture to the Romanticism, projecting the past and the future of the universal culture. Plato’s conception of Eros is a constant of her oeuvre, and can be found from her early poetry works to her late essays. In them, she connects the Greek thought with Dante, Shakespeare, Spinoza, Shelley, Goethe. As the author of the twentieth century , she insists in the importance to understand how change the paradigm change in the field of cultural history in our era: the fact that in the field of philosophy , literature and art we don’t to have to search for the differences, but for the deep internal similarities between different periods of development. Her work has been described as “being so good that it seems to be written by a man”2 – a comment that does not need much of hermeneutics to illustrate the fate of female philosophical thought until today. Her writings have been reprinted and studied intensively in the last decades in Serbia. This paper presents for the first time the thought of Anica Savic Rebas in Spanish language
The influence of age on the exploitation period in broiler reproduction of parents in Ross hybrid 308
These investigations were intended to identify the influence of parental flock age at heavy hybrid Ross 308 (usage period) on more important reproductive capabilities (carrying eggs intensity of brood eggs,egg mass, one day old chick mass, relative chick mass share in complete egg mass) and consumption of food per processed – hatched chicken (final product of production cycle). Flock usage period lasted for 40 weeks (all eggs), respectively, 38 (brood eggs) weeks and there was possibility, based on achieved results, with evaluation of phenotype correlation, to get some concrete conclusions about the age influence on analyzed parameters during mentioned flock rising period. Phenotype correlationamong investigated characteristics has been identified since second half of parental flock using period, since 41st week age (20th carrying eggs week) up to the end of production process when parental flock was 61 week old (41st egg production week). Flock age has statistically important positive (P < 0.05) influence on carrying eggs intensity of brood eggs until 49st week (rp = 0.391) and on percentage of chicken feasibility regard the complete number of inputted eggs until 50th week (rp = 0.434). There wasstatistically significantly increasing of egg mass and one-day old incubated chicken mass (P < 0.001) as parental flock was older. Complete correlation connectivity has been identified between egg mass and absolute chick mass (P < 0.001), while very strong (P < 0.001) or strong (P < 0.01) correlative connectivity between egg mass and relative chick share [(chicken mass/egg mass) x 100]. Further more, we determined negative correlation between eggs age and food consumption per hatchedchicken for all time of breeding broiler parents, except 61st week when we determined positive coefficient of phenotype correlation (rp = 0.062), but statistically inconsequent
Estética de Dostoyevski y Tarkovski: la creatividad como visión del hombre, del apocalipsis y de la posibilidad de salvación
The poetics and aesthetics of Andrei Tarkovski (1932-1986) coincide with Dostoyevsky’s understanding of artistic creativity: art as an ideal, art as a salvation and the transfiguring power of art. The Russian writer, whose work is full of the contradictions of life, sees that for him, creating - to write in his case - was the only life possible. Just as Tarkovsky says, that art has to give us strength against a monstrously cruel world that rubs on us, in its nonsense, the absurd. This vision of artistic creation as a redemptive and saving illusion has threads that branch out across European culture, and is particularly strong in a cultural tradition such as the Russian, in which art becomes some kind of teacher of the soul. The work of both authors also illustrates how, in Russian tradition, the artist has always been a figure in which the philosopher and the poet or the philosopher and the artist are superimposed. This article proposes to illustrate how the concept of art as a magician who saves, and as an educator of the soul revert both in the literature of Dostoyevski, and in the Tarkovski cinema.La poética de Andréi Tarkovski (1932-1986) coincide con la aproximación que tenía Dostoyevski a la hora de entender la actividad creadora: el arte como ideal, el arte como salvación y el poder transfigurador del arte. El escritor ruso, cuya obra está llena de la contradicción de la vida, ve que para él, crear, - escribir en su caso- era la única vida posible. Lo mismo que luego afirma Tarkovski, que considera que el arte nos tiene que dar fuerza ante un mundo monstruosamente cruel que roza, en sus sinsentido, el absurdo.Esta visión de la creación artística como ilusión redentora y salvadora tiene hilos que se ramifican en toda la cultura europea, y es particularmente fuerte en una tradición cultural como la rusa, en la cual el arte se constituye como una especie de educador del alma. La obra de ambos autores ilustra además como, en la tradición rusa, el artista siempre ha sido una figura en la que se superponen el filósofo y el poeta o el filósofo y el artista. Este artículo propone ilustrar cómo la concepción del arte como mago que salva y como educador del alma revierten tanto en la literatura de Dostoyevski, como en el cine Tarkovski
Comparative Studies on the Reproductive and Productive Traits of New Hampshire and Sombor Crested Chicken Breeds Reared in Semi-Extensive Production System
Research was conducted on New Hampshire (in further text NH) and Sombor Crested (in further text SC) breeds which were kept in semi extensive system. 56 birds of each breed were used (50 females and 6 males) in the experiment. 100 eggs from every chicken breed were used for natural hatching, and remained eggs were sold. From the total number of the naturally incubated eggs, 83 (NH) and 85 (SC) chickens were hatched, and they were used for the study of performance and related parameters.
Eggs and chickens originating from NH breed were statistically significantly heavier (P<0.001; P<0.01) compared with SC breed. Egg shape index and chicken percentage in egg weight were significantly higher at SC (P<0.001; P<0.05) compared to NH breed. Very strong positive correlation was determined between egg weight and chicken weight in both breeds. Very weak negative correlation was determined between egg weight and relative chicken intake in the egg weight. Similarly, between egg shape index and chicken weight, negative correlation coefficient was determined in both breeds. However, between egg shape index and chicken percentage, statistically significant (P<0.001) negative correlation coefficient was determined in NH breed. Significant (P<0.05) positive correlation for the same performances was determined in SC breed
New Evidences on Domestication of the Horse (Equus Ferus Caballus) and Origine of Domestic Mountain Pony
The results of draft genome research of permafrost horse bone dated approximately 560-780 (kyr BP) have been published recently. According to the data representing the oldest full genome sequence compared to the modern genomes of domesticated horse, Przewalskii and donkey it was suggested that the Equus lineage gave rise to contemporary horses, zebras and donkeys some 4.0 to 4.5 million years ago, twice increasing the assumed time to the common ancestor. Upon the phylogenetic and divergence analyses it was estimated that the Przewalskii and domestic horse populations diverged some 38-72 kyr BP and that there are no evidences that admixtures between Przewalskii and domestic horse populations occurred post-divergently thus Przewalskii’s involvement in the process of horse domestication has been excluded.
The new data on ancient equide genome question the conventional theory on the origin of Domestic mountain pony. Upon the protein variability of the Domestic mountain pony the influence of diluvial genome on the population was confirmed and this finding differed from the conventional theory stating E. f. Przewalskii and E. ferus caballus as ancestors of the autochthonous population. The role of different ancestral horses in evolution of our autochthonous population is therefore unclear.
The questions emerging from the most recent genetic and proteomic research in concern with the autochthonous populations are presented in the paper
Chemical composition of chicken meat produced in extensive indoor and free range rearing systems
The present study involves the analysis of the chemical composition of white meat (breast muscles) and dark meat (leg muscles) of broilers in extensive indoor and free range systems. The length of fattening period was 56 days. At 56 days of age, 6 male and 6 female broilers were randomly selected from each rearing system and slaughtered. Cooled carcasses were dissected into primal cuts. Breast and leg muscle (thigh and drumstick) samples were used for chemical analyses. The obtained resultssuggested that free range rearing system was more favourable than extensive indoor system, as it resulted in a significantly higher protein content and a lower fat content of white and dark chicken meat. Female broilers produced a higher fat content and a somewhat lower protein content as compared to males.Keywords: Chemical composition, chicken meat, rearing system, se
Complications Following Umbilical Vein Catheterization in Preterm Neonates – Single-Center
Background: Despite their widespread use, umbilical venous catheters (UVCs) are associated with various complications.
Methods: This single-center retrospective cohort study examined UVC-related complications in preterm neonates within a tertiary Neonatal Intensive Care Unit (NICU) from January 2020 to December 2022. The study aimed to analyze these complications in relation to UVC positioning.
Results: Over the course of three years, 146 preterm neonates underwent UVC insertion. The cohort's mean gestational age was 29.2 ± 3 weeks, with a median birth weight of 1110 g (817-1482 g). The median UVC placement duration was 8 days (6-10), totalling 1220 catheter days. Overall, 37% of the UVC placements were categorized as optimal, 35.6% as low-lying, 20.5% as high-lying, and 6.8% were categorized as malpositioned. The UVC-related complications occurred in 62 neonates (42.5%), with central line-associated bloodstream infection (CLABSI) in 8.2%, portal vein thrombosis (PVT) in 2.7%, pericardial effusion in 0.7%, and necrotizing enterocolitis (NEC) in 2.7% of neonates. The incidence of UVC-related complications was lowest with high-lying positions (23.3%), followed by optimal positioning (31.5%), low-lying (63.5%), and the highest in malpositioned UVCs (70%). UVC placement exceeding 8 days were significantly associated with increased complications.
Conclusion: The study highlights an elevated rate of complications associated with umbilical vein catheterization emphasizing the need for judicious use, especially in preterm neonates
Implementation of triticale in nutrition of non-ruminant animals
Cognition of chemical composition and nutritive values of triticale grain as well as the effect of its application in non-ruminant animal nutrition were pointed out in this paper. There is a high level of proteins in the grain of triticale (2 to 3% more than wheat and 4% more than rye), with very beneficial amino acid composition, and is the reason for its usage in domestic animals nutrition. Nowadays, people are of the opinion that triticale is one of potential plant species with the brightest perspective in the production of food for domestic animals. Considering the increased production of triticale, some detail researching of its nutritional value is necessary due to the required evaluation of the role and significance in domestic animal nutrition based on triticale. Due to intensive plant breeding programs, there are new varieties of triticale in the market, distinctive by the higher yield and wide range of desired traits. As a result of this, triticale is becoming very attractive and is occupying larger portions of arable land. These review will show if there are some advantages of triticale compared to other cereals and how large the frame of these advantages is, as well as how it will affect the further spreading of triticale on arable land.Key words: Triticale, chemical composition, nutritive capacity, nutrition
The Biosynthesis of Artemisinin (Qinghaosu) and the Phytochemistry of Artemisia annua L. (Qinghao)
The Chinese medicinal plant Artemisia annua L. (Qinghao) is the only known source of the sesquiterpene artemisinin (Qinghaosu), which is used in the treatment of malaria. Artemisinin is a highly oxygenated sesquiterpene, containing a unique 1,2,4-trioxane ring structure, which is responsible for the antimalarial activity of this natural product. The phytochemistry of A. annua is dominated by both sesquiterpenoids and flavonoids, as is the case for many other plants in the Asteraceae family. However, A. annua is distinguished from the other members of the family both by the very large number of natural products which have been characterised to date (almost six hundred in total, including around fifty amorphane and cadinane sesquiterpenes), and by the highly oxygenated nature of many of the terpenoidal secondary metabolites. In addition, this species also contains an unusually large number of terpene allylic hydroperoxides and endoperoxides. This observation forms the basis of a proposal that the biogenesis of many of the highly oxygenated terpene metabolites from A. annua - including artemisinin itself may proceed by spontaneous oxidation reactions of terpene precursors, which involve these highly reactive allyllic hydroperoxides as intermediates. Although several studies of the biosynthesis of artemisinin have been reported in the literature from the 1980s and early 1990s, the collective results from these studies were rather confusing because they implied that an unfeasibly large number of different sesquiterpenes could all function as direct precursors to artemisinin (and some of the experiments also appeared to contradict one another). As a result, the complete biosynthetic pathway to artemisinin could not be stated conclusively at the time. Fortunately, studies which have been published in the last decade are now providing a clearer picture of the biosynthetic pathways in A. annua. By synthesising some of the sesquiterpene natural products which have been proposed as biogenetic precursors to artemisinin in such a way that they incorporate a stable isotopic label, and then feeding these precursors to intact A. annua plants, it has now been possible to demonstrate that dihydroartemisinic acid is a late-stage precursor to artemisinin and that the closely related secondary metabolite, artemisinic acid, is not (this approach differs from all the previous studies, which used radio-isotopically labelled precursors that were fed to a plant homogenate or a cell-free preparation). Quite remarkably, feeding experiments with labeled dihydroartemisinic acid and artemisinic acid have resulted in incorporation of label into roughly half of all the amorphane and cadinane sesquiterpenes which were already known from phytochemical studies of A. annua. These findings strongly support the hypothesis that many of the highly oxygenated sesquiterpenoids from this species arise by oxidation reactions involving allylic hydroperoxides, which seem to be such a defining feature of the chemistry of A. annua. In the particular case of artemisinin, these in vivo results are also supported by in vitro studies, demonstrating explicitly that the biosynthesis of artemisinin proceeds via the tertiary allylic hydroperoxide, which is derived from oxidation of dihydroartemisinic acid.
There is some evidence that the autoxidation of dihydroartemisinic acid to this tertiary allylic hydroperoxide is a non-enzymatic process within the plant, requiring only the presence of light; and, furthermore, that the series of spontaneous rearrangement reactions which then convert thi allylic hydroperoxide to the 1,2,4-trioxane ring of artemisinin are also non-enzymatic in nature
