CHONDRITES-CLADICHNUS ICHNOCOENOSIS FROM THE DEEP-SEA DEPOSITS OF PIERFRANCESCO (CRETACEOUS; ITALY): OXYGEN- OR NUTRIENT-LIMITED?

The Italian Northern Apennines are acknowledged as the place where ichnology was born, but there is comparatively little work about their ichnological record. This study bridges this gap by describing two new ichnosites from the locality of Pierfrancesco, which preserve an abundant, low-disparity trace-fossil assemblage within the Late Cretaceous beds of the M. Cassio Flysch. Results show that lithofacies and ichnotaxa are rhythmically organized. The base of each cycle consists of Megagrapton-bearing calciclastic turbidites, which are overlain by marlstone beds with an abundant, low-disparity assemblage of trace fossils. This includes Chondrites intricatus, C. patulus, C. targionii, C. recurvus and Cladichnus fischeri. The cycle top consists of mudstones with no distinct burrows. The rhythmic pattern of Pierfrancesco reflects a deep-sea ecological succession, in which species and behaviour changed as turbidite-related disturbances altered the seafloor. This study opens the question of whether the Chondrites-Cladichnus ichnocoenosis represents low-oxygen or nutrient-poor settings.

The aesthetic category of the comic in the musical characterization of characters (on the example of Yuri Shevchenko's ballet “Buratino and the Magic Violin”)

The purpose of the article. To analyze the embodiment of the comic on the material of Yuri Shevchenko’s ballet “Buratino and the Magic Violin” through the analysis of musical and choreographic elements, as well as the peculiarities of their synthesis. Suggest a typology of ballet characters. Methodology. Methods of comparison and matching helped to determine the differences between comic and lyrical characters, as well as to identify the means of expression that created the appropriate comic image. Scientific novelty. For the first time in Ukrainian art history, an analysis of musical and choreographic elements was carried out to identify the comic component of the characters in Yuri Shevchenko’s ballet “Buratino and the Magic Violin”. The synthesis of musical and choreographic components of ballet is emphasized. A typology of ballet characters is proposed. Conclusions. The analysis allowed to divide the characters of Yuri Shevchenko’s ballet “Buratino and the Magic Violin” into comic, semi-comic, humorous, and lyrical. The means of expression (musical and choreographic) used to characterize the characters with an emphasis on the comic group were identified. In music, this is the leittimbre of the trombone mainly in low registers, “broken” intervals, as well as leitintervals (dissonances), tremolo trumpet, and glissando of copper and, most importantly, the characteristic rhythmic pattern with syncope. In choreography, it is the dominance of non-classical elements and movements, as well as specific, street techniques ― leitelements (falling, pushing, pulling, kicking). Keywords: aesthetic category comic, choreographic elements, synthesis of elements, leittimbres, leitelements, leitintervals, comic, semi-comic, humorous, lyrical characters.

Meter without rhythmic pattern repetitions increases pre-attentive processing

Processing musical meter – the organization of time into regular cycles of strong and weak beats – requires abstraction from the varying rhythmic surface. Several studies investigated whether meter processing requires attention, or if it can be both pre-attentive and attentive. While findings on temporal expectation (processing meter per se) indicated benefits of attention, studies on meter processing in a more complex, dual-task context (meter used for temporal orientation) consistently reported pre-attentive processing. Also, while surface-based approaches to meter (meter aided by pattern repetition) showed some benefits of attention, structural approaches (meter not aided by pattern repetition, increased complexity) found pre-attentive-only processing. Therefore, in the present study we hypothesized that pre-attentive processing increases with cognitive load, and we compared surface with structural meter processing. Supporting our hypothesis, we saw improved behavioral performance for surface meter, as well as EEG evidence that structural meter elicits pre-attentive processing (pre-attentive P1) while surface meter does not (attentive-only P1). Our findings highlight the need for increased awareness in approaches to meter processing and support the idea that increased cognitive demand may recruit pre-attentive processing of temporal structure.

Systematic analysis of C. elegans embryo behavior reveals a stereotyped developmental progression and a rhythmic pattern of behavioral quiescence

Systematic analysis of rich behavioral recordings is being used to uncover how circuits encode complex behaviors. Here we apply the approach to embryos. What are the first embryonic behaviors and how do they evolve as early neurodevelopment ensues? To address these questions, we present a systematic description of behavioral maturation for Caenorhabditis elegans embryos. Posture libraries were derived from a genetically encoded motion capture suit imaged with light-sheet microscopy and annotated using custom semi-automated tracking software (Multiple Hypothesis Hypergraph Tracking; MHHT). Analysis of cell trajectories, postures, and behavioral motifs revealed a stereotyped developmental progression. Early movement is dominated by flipping between dorsal and ventral coiling, which gradually slows into a period of reduced motility. Late-stage embryos exhibit sinusoidal waves of dorsoventral bends, prolonged bouts of directed motion, and a rhythmic pattern of pausing, which we designate slow wave twitch (SWT). Synaptic transmission is required for late-stage motion but not for early flipping or the intervening inactive phase. A high-throughput behavioral assay and calcium imaging revealed that SWT is elicited by the rhythmic activity of a quiescence-promoting neuron (RIS). Similar periodic quiescent states are seen prenatally in divergent animals and may play an important role in promoting normal developmental outcomes.

Rhythm, Time, and Presence

Repetitive rhythm-oriented or groove-based music is specifically designed to usher the listener into a state of absorption or presence in the music. This chapter argues that this particular form of musical time originates with the repetition of a certain inner dynamics within the basic rhythmic pattern of the groove. The first part of the chapter presents structural and microrhythmic features that seem to be particularly impactful upon the listener’s state of groove absorption. The second part discusses the consequences of the fact that it is impossible to describe such an experience of musical time without stepping outside it. An initial observation is that in the very moment one starts to consider the state of being-in-the-groove, one’s state of being is changed.

THE GREAT GATSBY BY F. S. FITZGERALD: POETIC TEXT

В статье обсуждается вопрос о понимании текста на основе восстановления читателем смысла «поэтическое» как инварианта жанрового смысла культуры. Ритмический рисунок романа является одновременно и важной характеристикой стиля текста и основанием для отбора автором стилистических изобразительных средств. Смысл «поэтическое» прослеживается на всех уровнях организации высказывания и помогает восстанавливать его более частные смыслы. The article discusses the issue of understanding the text based on the reader's restoration of the meaning of «poetic» as an invariant of the genre meaning of culture. The rhythmic pattern of the novel is an essential characteristic of the author's style and, at the same time, the basis for the selection of stylistic pictorial means. Rhythmization can be traced at all levels of the organization of the utterance and helps to restore its more particular meanings.

Konotacije leksičkog sloja motiva stida u engleskim prijevodima bošnjačke balade “Hasanaginica”

Translating a work of literary art, especially poetry, also means translating its style. At the lexico-stylistic level, style manifests itself in both denotative and connotative meanings of the lexical units of a text. By analyzing the connotations of the lexical layer of shame motif in English translations of Bosniak ballad “Hasanaginica”, we can identify and problematize the interpretation of this motif in the target texts in relation to the source text. Applying the method of lexico-stylistic analysis to the key verses of the shame motif, both in the source text and in the target texts in English, we examine the ways in which different translators build the mystical motif as the only abstract concept that never develops into a poetic image, leaving space for multi-layered connotations that are imposed on the reader. The results of the analysis point to the translations that are closest to the source text in terms of containing minimal differences in the degree of their interpretive limitation or intrusiveness. The most vividly evoked key verse of the shame motif is found in Francis Jones’ translation. However, the final vocabulary choice made by a discerning translator possessing a high degree of stylistic awareness should also be influenced by other aspects of the original text, such as its established rhythmic pattern or meter that requires preservation and other formal characteristics of this ballad, which are not to be found in Jones’ translation. Therefore, our conclusion is that the results of lexico-stylistic analysis of the original should be weighed against the results of analysis on other linguo-stylistic levels of expression (phonostylistic and syntaxostylistic) in order to synthesize them as successfully as possible, which could help recreate a new, more effective and reliable translation of this masterpiece of our oral literature.

Disabling the Circadian Clock in the Yellow Fever Mosquito Aedes Aegypti Reduces Adult Life Span, Attraction to Host Odor and Mating Success

Like other insects, Aedes aegypti displays strong daily patterns in host seeking and mating. Much of these behaviors are believed to be under the control of a circadian clock, an endogenous timekeeping mechanism relying on transcriptional/translational negative feedback loops that drive rhythmic physiology and behavior. To examine the connection between the circadian clock and various Ae. aegypti behaviors, we knocked out the core clock gene cycle using CRISPR/Cas9. We found that the rhythmic pattern and intensity of mRNA expression of seven circadian genes, including AeCyc-/-, were altered across the day/night cycle as well as in constant darkness conditions. We further show that, if expressed, the mutant CYC protein is incapable of forming a dimer with CLK to stimulate per expression and that the endogenous clock is disabled in AeCyc-/- mosquitoes. AeCyc-/- do not display the bimodal locomotor activity pattern of wild type, have a significantly reduced response to host odor, reduced egg hatching rates, delayed embryonic development, and reduced adult survival and mating success. Surprisingly, however, the propensity to blood feed in AeCyc-/- females is significantly higher than in wildtype females. Together with other recent work on the circadian clock control of key aspects of mosquito biology, our data on how cycle KO affects mosquito behavior and fitness provides a basis for further work into the pathways that connect the mosquito endogenous clock to its vector competence.

Alpha-power in Electroencephalography as Good Outcome Predictor for Out-of-Hospital Cardiac Arrest Survivors

Background This study aimed to identify the quantitative EEG biomarkers for predicting good neurologic outcomes in OHCA survivors treated with targeted temperature management (TTM) using power spectral density (PSD), event-related spectral perturbation (ERSP), and spectral entropy (SE). Methods This observational registry-based study was conducted at a tertiary care hospital in Korea using data of adult nontraumatic comatose OHCA survivors who underwent standard EEG and treated with TTM between 2010 and 2018. Good neurological outcome at 1 month (Cerebral Performance Category scores 1 and 2) was the primary outcome. The linear mixed model analysis was performed for PSD, ESRP, and SE values of all and each frequency band. Results Thirteen of the 54 comatose OHCA survivors with TTM and EEG, 13 were excluded due to poor EEG quality or periodic/rhythmic pattern, leaving 41 patients for analysis. The median time to EEG was 21 h, and the rate of the good neurologic outcome at 1 month was 52.5%. The good neurologic outcome group was significantly younger and showed higher PSD and ERSP and lower SE features for each frequency than the poor outcome group. After age adjustment, only the alpha-PSD was significantly higher in the good neurologic outcome group (1.13 ± 1.11 vs. 0.09 ± 0.09, p = 0.031) and had best performance with 0.903 of the area under the curve for predicting good neurologic outcome. Conclusions Alpha-PSD best predicts good neurologic outcome in OHCA survivors and is an early biomarker for prognostication. Larger studies are needed to conclusively confirm these findings.

Adolescent Development of Biological Rhythms in Female Rats: Estradiol Dependence and Effects of Combined Contraceptives

Adolescence is a period of continuous development, including the maturation of endogenous rhythms across systems and timescales. Although, these dynamic changes are well-recognized, their continuous structure and hormonal dependence have not been systematically characterized. Given the well-established link between core body temperature (CBT) and reproductive hormones in adults, we hypothesized that high-resolution CBT can be applied to passively monitor pubertal development and disruption with high fidelity. To examine this possibility, we used signal processing to investigate the trajectory of CBT rhythms at the within-day (ultradian), daily (circadian), and ovulatory timescales, their dependence on estradiol (E2), and the effects of hormonal contraceptives. Puberty onset was marked by a rise in fecal estradiol (fE2), followed by an elevation in CBT and circadian power. This time period marked the commencement of 4-day rhythmicity in fE2, CBT, and ultradian power marking the onset of the estrous cycle. The rise in circadian amplitude was accelerated by E2 treatment, indicating a role for this hormone in rhythmic development. Contraceptive administration in later adolescence reduced CBT and circadian power and resulted in disruption to 4-day cycles that persisted after discontinuation. Our data reveal with precise temporal resolution how biological rhythms change across adolescence and demonstrate a role for E2 in the emergence and preservation of multiscale rhythmicity. These findings also demonstrate how hormones delivered exogenously in a non-rhythmic pattern can disrupt rhythmic development. These data lay the groundwork for a future in which temperature metrics provide an inexpensive, convenient method for monitoring pubertal maturation and support the development of hormone therapies that better mimic and support human chronobiology.