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O inconsciente e a política: análise da homologia estrutural entre mais-de-gozar e mais-valia
(Universidade Federal de São Carlos, 2026-09-11) Cezarino, Matheus Henrique; Soria, Ana Carolina Soliva; http://lattes.cnpq.br/2903416522364971; http://lattes.cnpq.br/9466934122124137; Beer, Paulo Antonio de Campos; Pontes, Suely Aires; http://lattes.cnpq.br/5489810277606847; http://lattes.cnpq.br/0384837477014785
This dissertation investigates the theoretical intersections between Lacanian psychoanalysis and political thought through the structural homology established by Jacques Lacan between the function of object a as surplus-enjoyment (plus-de-jouir) and the Marxian category of surplus-value (Mehrwert). Setting out from the theoretical and socio-political effervescence of the 1960s, indelibly marked by the events of May 68 in France, this study examines how Lacan’s teaching was impelled to clarify its conceptual coordinates in face of Marxism, a period in which Marx assumes a pressing presence in Lacanian theory. The central objective of this research is to apprehend the reasons motivating this singular "return to Marx" and to analyze the internal articulation engendered with the critique of Marxian political economy during the gestation period of the so-called theory of discourses. Investigating the position of the Lacanian object as structurally homologous to surplus-value, the study adopts the Monzanian gesture of philosophical reading as a methodological framework linked to the tradition of the Philosophy of Psychoanalysis, aiming to reconstruct Lacan’s conceptual movement while grasping the theoretical and political impasses at stake. To this end, the dissertation is organized into three chapters: first, it reconstructs the historical and institutional frictions, convergences, and shifts between Marxisms and psychoanalyses, locating Lacan’s singular and ambiguous stance toward the student movement and the revolutionary tradition; second, it undertakes a mapping of the category of the object within the Lacanian framework, tracing its evolution from an imaginary object and support of fantasy to its emergence as cause of desire, irreducible remainder of the signifier structure, and drive object; finally, it reconstructs the homology with surplus-value based on Seminar XVI, explicating its implications for the psychoanalytic reading of social bonds and the political dimension. It demonstrates how the function of surplus-enjoyment, by condensing the paradigm of a constitutive loss that engenders an excess of enjoyment, reorganizes the drive economy, repositions the status of truth within the failure of knowledge, and provides conceptual grounding for the Lacanian critique of science, capitalism, and the political sphere. By addressing this problem within Lacan's own teaching, this research aims to contribute to the debate surrounding the social function of psychoanalysis in order to reposition the possible forms of relation between psychoanalysis and the political.
Progressão do volume de treinamento de força: efeitos sobre a força muscular e as adaptações contráteis de fibras musculares isoladas em indivíduos treinados
(Universidade Federal de São Carlos, 2026-09-11) Silva, Deivid Gomes da; Libardi, Cleiton Augusto; http://lattes.cnpq.br/8953409094842074; https://orcid.org/0000-0002-9003-7610; http://lattes.cnpq.br/5086441110418562; https://orcid.org/0000-0003-1918-7736; Libardi, Cleiton Augusto; Tricoli, Valmor Alberto Augusto; Pinto, Ronei Silveira; De Souza, Eduardo Oliveira; Vechin, Felipe Cassaro; http://lattes.cnpq.br/8953409094842074; http://lattes.cnpq.br/2310936382086654; http://lattes.cnpq.br/9814042363730369; http://lattes.cnpq.br/6452107942182021; http://lattes.cnpq.br/6705760159092881; https://orcid.org/0000-0002-9003-7610; https://orcid.org/0000-0002-9014-087X; https://orcid.org/0000-0002-5827-5723; https://orcid.org/0000-0002-9382-7407; https://orcid.org/0000-0003-0975-8654
Introduction: Training volume is a major variable manipulated in resistance training (RT) prescription, but it remains unclear whether substantial increases in weekly volume promote greater strength gains in previously resistance-trained individuals. Moreover, volume dose–response studies have predominantly assessed voluntary strength, and whether different magnitudes of volume progression elicit distinct adaptations directly at the muscle-fiber level remains unknown. Objective: To compare the effects of individualized 20% (VOL20) and 120% (VOL120) increases in habitual weekly RT volume on maximal dynamic strength, the contractile properties of isolated muscle fibers, and muscle fiber cross-sectional area (fCSA) in previously resistance-trained individuals. Methods: Eighteen resistance-trained participants (11 men and 7 women), aged 18 - 35 years, were included in a randomized, unilateral, within-subject design. Each lower limb was allocated to VOL20 or VOL120. The intervention lasted eight weeks and consisted of two weekly sessions of unilateral 45° leg press and knee extension performed to concentric failure within a 9-12 repetition-maximum range. Maximal dynamic strength was assessed using the one-repetition maximum (1RM) test. Vastus lateralis biopsies were obtained before and after the intervention to determine maximal isometric force of isolated Ca²⁺-activated muscle fibers (P₀), force normalized to fiber diameter (P₀/D), specific force (P₀/fCSA), and histologically determined fCSA. Primary outcomes were analyzed using linear mixed models, with the protocol × time interaction as the effect of interest. Comparisons between percentage changes in 1RM and muscle-fiber contractile properties, as well as analyses stratified by fiber type, were performed exploratorily. Results: Weekly set volume during the intervention was 18.23 ± 3.18 sets in VOL20 and 33.47 ± 5.82 sets in VOL120. 1RM increased in both the 45° leg press and knee extension (both p < 0.001), with no protocol × time interactions (p = 0.888 and p = 0.330, respectively). P₀ and P₀/D also increased over time (both p < 0.001), without protocol × time interactions (p = 0.448 and p = 0.096, respectively). P₀/fCSA increased over time (p = 0.010), also without a protocol × time interaction (p = 0.114). No significant changes in histological fCSA were observed. In the exploratory analyses, voluntary strength gains did not consistently exceed the adaptations observed directly in isolated muscle fibers. Conclusion: Eight weeks of RT concurrently increased maximal dynamic strength and the intrinsic force-generating capacity of isolated muscle fibers in previously resistance-trained individuals. Despite the large contrast between the individualized volume progressions, the 120% increase did not provide evidence of superior adaptations compared with the 20% increase. These findings further demonstrate that functional adaptations at the muscle-fiber level can occur in resistance-trained individuals without detectable increases in histological fCSA.