Experimental results of a 330 GW impedance-matched Marx generator.

Impedance-matched Marx generators (IMGs) are considered next generation pulsed-power drivers because of their long lifetime (> 10,000 shots), repetition rate (> 0.1-Hz), fast rise time (~ 100-ns), and high-energy-delivery efficiency (~ 90%). "TITAN" is a 14-stage IMG designed to deliver 1-TW to a 2-Ω matched load. In this paper, design, simulation, and experimental results for six stages of TITAN including its triggering system, air delivery system, and pulse shaping are presented. To achieve efficiency over 85% and maximize the capability of an IMG, synchronized triggering, reduced pre-fire rate, and pulse shaping ability are crucial. In this paper, novel engineering solutions are introduced, tested, and proven to overcome those challenges. 6-stage TITAN, powered by 102 identical bricks and 102 field-distortion-triggered gas switches, could generate ~ 600-kA and ~ 700-kV across a ~ 0.9-Ω matched load when fully charged to ± 100-kV. In these experiments, 6-stage TITAN is tested up to ± 70-kV charge voltage which delivers a peak power of 330-GW to a 1.2-Ω resistive load.

Analysis of Factors Associated with Anterior Location of Marx's Line.

PURPOSE: The study aimed to investigate the factors associated with anterior location of Marx's line in ocular surface and living habits, especially in tear film. MATERIALS AND METHODS: This cross-sectional study enlisted 483 participants with meibomian gland dysfunction, who were divided into two groups: 160 participants with mild anterior location of Marx's line and 323 participants with moderate-to-severe anterior location. Participants completed a survey of demographic characteristics (sex, age, length of visual terminal use, sleep duration, skin property), and the Ocular Surface Disease Index and Standard Patient Evaluation of Eye Dryness questionnaires. They also underwent slit-lamp examinations of the lids, and measurements of non-invasive tear break up time, tear meniscus height, fluorescein tear break up time, lipid layer thickness, partial blink rate, lid wiper epitheliopathy, and meibomian gland dropout. RESULTS: The tear meniscus height (mild:0.21(0.18-0.25), moderate-to-severe:0.19(0.16-0.23), p = 0.004), fluorescein tear break up time(mild:3(2-4),moderate to severe:2(1-3), p = 0.000), max LLT(mild:87(62-100), moderate-to-severe:99(69-100), p = 0.04), average LLT(mild:64.5(47.5-96.75), moderate-to-severe:74(53-100), p = 0.012), min LLT(mild:52(38-75), moderate-to-severe:59(41-85), p = 0.029) differed significantly between mild and moderate-to-severe anterior location of Marx's line, and associated to the anterior location of Marx's line(r=-0.134, p = 0.03; r=-0.194, p = 0.000; r = 0.093, p = 0.041; r = 0.119, p = 0.009; r = 0.105, p = 0.022) However, no statistical significance was observed in the OSDI, SPEED, partial blink rate, non-invasive tear breakup time, lipid layer thickness, meibomian gland dropout and lid wiper epitheliopathy(p > 0.05). Meanwhile, in the demographic characteristics, statistically significant correlations were associated with skin property(r = 0.154, p = 0.001) and sleep duration(r=-0.124, p = 0.006), but not with age, sex, and the length of visual terminal use (p > 0.05). CONCLUSIONS: Lower TMH and shorter TBUT positively correlated with anterior location of the Marx's line, and were risk factors. Meanwhile, participants with oily skin and shorter sleep duration were more likely to exhibit anterior location of Marx's line.

Young men undergoing anterior cruciate ligament reconstruction with patellar tendon autograft and anteromedial drilling outperform at 5- to 10-year follow-up in terms of graft stability and activity levels compared to those undergoing reconstruction with hamstring autograft and transtibial drilling.

OBJECTIVE: To compare 5- to 10-year outcomes of anterior cruciate ligament (ACL) reconstruction in young men performed with bone-patellar tendon bone (BPTB) autograft and anteromedial portal to reconstruction with hamstring autograft and transtibial technique. It was hypothesised that in young adult men, at 5- to 10-year follow-up, superior restoration of knee laxity and activity levels would be demonstrated using BPTB autograft and anteromedial portal technique. METHODS: Ninety-four men who had ACL reconstruction with BPTB autograft and anteromedial portal were eligible for comparison to 106 men who had reconstruction with hamstring autograft and transtibial technique. Inclusion criteria were: (1) age 18-35 years, (2) ACL tear caused by sports trauma only, (3) no concomitant ligament reconstruction and (4) 5- to 10-year follow-up. Outcome measures compared between the two groups included Lachman and pivot shift tests, KT side-to-side difference, Tegner and Marx scores, International Knee Documentation Committee (IKDC)-subjective score, Knee Osteoarthritis Outcome Scale (KOOS), Short Form (SF)-36, and single hop test for distance. P value â€‹< â€‹0.05 indicated statistical significance. RESULTS: Forty-five patients with BPTB and 55 patients with hamstring ACL reconstruction were available for in-person assessment at 5-10 years after surgery. Outcomes in the BPTB group compared to the hamstring group showed KT difference 1.4 â€‹± â€‹1.9 mm vs. 2.8 â€‹± â€‹2.3 mm (p â€‹< â€‹0.01), pivot shift grade 2-3 in 4% vs. 34% (p â€‹< â€‹0.01), return to preinjury Tegner level in 51% vs. 36% (p â€‹= 0.1) and to preinjury Marx score in 29% vs. 11% (p â€‹= 0.02), and IKDC-subjective 88 â€‹± â€‹10 vs. 82 â€‹± â€‹13 vs (p â€‹< â€‹0.01), respectively. Statistically significant inter-relationships were found between KT side-to-side difference and the Tegner, Marx and IKDC-subjective scores at follow-up (r â€‹= â€‹-0.314, p â€‹< â€‹0.01; r â€‹= â€‹-0.263, p â€‹< â€‹0.01; r â€‹= â€‹-0.218, p â€‹= â€‹0.03, respectively). CONCLUSION: Young men undergoing ACL reconstruction with patellar tendon autograft and anteromedial drilling outperform at 5- to 10-year follow-up in terms of graft stability and activity levels compared to young men undergoing reconstruction with hamstring autograft and transtibial drilling. LEVEL OF EVIDENCE: III (Retrospective cross-sectional comparative study).

The formation mechanism， content composition， and contemporary revelation of Marx’s health thought / 中国医学伦理学

An important premise of Marxism is to attach importance to human health. Although Marx did not specially discuss health problems， many of his writings contain a rich view of health， which is an important part of the Marxist theoretical system. From the viewpoint of the formation mechanism， the emergence of Marx’s health thought is based on the historical development of the demand for the scientific view of health， developed in Marx’s in-depth thinking and research on historical materialism， sublimated in the need to guide the realistic movement of the working class at that time， and continuously enriched and developed based on practical experience. In terms of the composition of content， Marx’s health thought includes emphasis on workers’ health rights， concern for the public living environment， and the proposition that health is a necessary quality for people in future society. It provides ideological guidance for the cultivation of people’s view of health， theoretical enlightenment for the promotion of the construction of a healthy China， and a powerful weapon for resolving global health problems.

The Significance and Function of Marx’s View of Life on COVID-19 Epidemic Prevention and Control / 中国医学伦理学

Finding a way of life education with Chinese characteristics and making up for the shortcomings of life education, which should become a major issue for the in-depth study of COVID-19 epidemic prevention and control in China. Marx’s view of life is a correct and scientific view of life, which is not only the guiding ideology of life education, but also the important resources for life education. While criticizing the views of life and death based on the western philosophy of life, it can also overcomes the limitations of Chinese traditional view of life. In the epidemic prevention and control, the in-depth study of Marx’s view of life will help to promote the practice of life education, enable people to establish a correct and scientific view of life and obtain the life sublimation in life practice.

Ontologia e economia política: uma introdução filosófica à leitura de O Capital / Ontology and political economy: a philosophical introduction to reading The Capital

Resumo: O objetivo deste artigo consiste em analisar como a interpretação marxiana acerca da ontologia e da filosofia política hegelianas reflete na sua crítica da economia política capitalista, com ênfase para como Marx elabora a relação entre trabalho e sociabilidade a partir de Hegel, e como esse processo influencia a crítica marxiana da forma valor (Wertform) como substância social do processo de acumulação do capital. A metodologia utilizada foi a pesquisa bibliográfica, guiada pela leitura imanente das obras marxiana e hegeliana.

Abstract: The objective of this article is to analyze how the Marxian interpretation of Hegelian ontology and political philosophy reflects in his critique of capitalist political economy, with emphasis on how Marx elaborates the relationship between labor and sociability based on Hegel, and how this process of influence the Marxian critique of the value form (Wertform) as the social substance of the capital accumulation process. A methodology used for bibliographical research guided by the immanent reading of Marxian and Hegelian works.

Predictors of Return to Activity at 2 Years After Anterior Cruciate Ligament Reconstruction Among Patients With High Preinjury Marx Activity Scores: A MOON Prospective Cohort Study.

BACKGROUND: Predictors of return to activity after anterior cruciate ligament reconstruction (ACLR) among patients with relatively high preinjury activity levels remain poorly understood. PURPOSE/HYPOTHESIS: The purpose of this study was to identify predictors of return to preinjury levels of activity after ACLR, defined as achieving a Marx activity score within 2 points of the preinjury value, among patients with Marx activity scores of 12 to 16 who had been prospectively enrolled in the Multicenter Orthopaedic Outcomes Network (MOON) cohort. We hypothesized that age, sex, preinjury activity level, meniscal injuries and/or procedures, and concurrent articular cartilage injuries would predict return to preinjury activity levels at 2 years after ACLR. STUDY DESIGN: Cohort study; Level of evidence, 2. METHODS: All unilateral ACLR procedures from 2002 to 2008 performed in patients enrolled in the MOON, with preinjury Marx activity scores ranging from 12 to 16, were evaluated with a specific focus on return to preinjury activity levels at 2 years postoperatively. Return to activity was defined as a Marx activity score within 2 points of the preinjury value. The proportion of patients able to return to preinjury activity levels was calculated, and multivariable modeling was performed to identify risk factors for patients' inability to return to preinjury activity levels. RESULTS: A total of 1188 patients were included in the final analysis. The median preinjury Marx activity score was 16 (interquartile range, 12-16). Overall, 466 patients (39.2%) were able to return to preinjury levels of activity, and 722 patients (60.8%) were not able to return to preinjury levels of activity. Female sex, smoking at the time of ACLR, fewer years of education, lower 36-Item Short Form Health Survey Mental Component Summary scores, and higher preinjury Marx activity scores were predictive of patients' inability to return to preinjury activity levels. Graft type, revision ACLR, the presence of medial and/or lateral meniscal injuries, a history of meniscal surgery, the presence of articular cartilage injuries, a history of articular cartilage treatment, and the presence of high-grade knee laxity were not predictive of a patient's ability to return to preinjury activity level. CONCLUSION: At 2 years after ACLR, most patients with high preinjury Marx activity scores did not return to their preinjury level of activity. The higher the preinjury Marx activity score that a patient reported at the time of enrollment, the less likely he/she was able to return to preinjury activity level. Smoking and lower mental health at the time of ACLR were the only modifiable risk factors in this cohort that predicted an inability to return to preinjury activity levels. Continued effort and investigation are required to maximize functional recovery after ACLR in patients with high preinjury levels of activity.

Preliminary Study on the Effect of a Single High-Energy Electromagnetic Pulse on Morphology and Free Radical Generation in Human Mesenchymal Stem Cells.

The effect of nanosecond electromagnetic pulses on human health, and especially on forming free radicals in human cells, is the subject of continuous research and ongoing discussion. This work presents a preliminary study on the effect of a single high-energy electromagnetic pulse on morphology, viability, and free radical generation in human mesenchymal stem cells (hMSC). The cells were exposed to a single electromagnetic pulse with an electric field magnitude of ~1 MV/m and a pulse duration of ~120 ns generated from a 600 kV Marx generator. The cell viability and morphology at 2 h and 24 h after exposure were examined using confocal fluorescent microscopy and scanning electron microscopy (SEM), respectively. The number of free radicals was investigated with electron paramagnetic resonance (EPR). The microscopic observations and EPR measurements showed that the exposure to the high-energy electromagnetic pulse influenced neither the number of free radicals generated nor the morphology of hMSC in vitro compared to control samples.

Quadriceps tendon autograft is comparable to hamstring tendon and bone-patella-tendon-bone up to 2 years after isolated primary anterior cruciate ligament reconstruction.

PURPOSE: To evaluate the functional and graft survivorship outcomes of the three most common autograft options for primary anterior cruciate ligament reconstruction (ACLR)-hamstring tendon (HT), bone-patella-tendon-bone (BPTB), and quadriceps tendon (QT). METHODS: Patients captured by the New Zealand ACL registry who underwent a primary ACLR from 2014 to 2020 were considered for the study. Patients with associated knee injury (including meniscus, chondral, osseous, and additional ligamentous injury) and previous knee surgery were excluded. Comparison was made between HT, BPTB, and QT autografts with respect to Marx and KOOS (Knee Osteoarthritis Outcome Score) scores at minimum 2 years follow-up. In addition, graft survivorship was evaluated by comparing all-cause revision per 100 graft years and revision-free proportion at 2 years post-surgery. RESULTS: 2,582 patients (1,921 HT, 558 BPTB, 107 QT) were included in the study. Differences in adjusted functional outcomes between HT and BPTB were found at 12 months (mean Marx; HT 6.2; BPTB 7.1; P < 0.001) (mean KOOS Sport and Recreation; HT 75.1; BPTB 70.5; n.s.) and 24 months (mean KOOS Sports and Recreation; HT 79.2; BPTB 73.9; P < 0.001). QT was comparable to HT and BPTB in all functional scores at 12 months and 2 years. No statistically significant differences were found in revision rate between all three autograft groups up to 2 years post-surgery (revision rate per 100 graft years; HT 1.05; BPTB 0.80; QT 1.68; n.s. HT vs. BPTB; n.s. HT vs. QT; n.s. QT vs. BPTB). CONCLUSIONS: QT was found to be comparable to both HT and BPTB in all functional scores and revision rates up to 2 years post-surgery. LEVEL OF EVIDENCE: Level III.

Efficacy of optimal pulse technology in the treatment of demodex blepharitis and its effect on ocular surface function / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To investigate the efficacy of optimal pulse technology(OPT)in the treatment of demodex blepharitis and its influence on ocular surface function.METHODS: A retrospective study was conducted from February 2018 to October 2020. A total of 127 patients(254 eyes)with demodex blepharitis were assigned to the observation group and the control group according to the treatment method. The control group(63 patients, 126 eyes)were given conventional hot compress, eye cleansing and drug therapy. On this basis, the observation group(64 patients, 128 eyes)was treated with OPT. Both groups were given 6wk of continuous treatment. Demodex count, Marx's line scores, meibum character scores, ocular surface disease index(OSDI)scores, non-invasive tear break-up time(NIBUT), non-invasive tear meniscus height(NITMH)and lipid layer thickness(LLT)were compared between the two groups, and safety was evaluated.RESULTS: After 6wk of treatment, demodex count, Marx's line scores, meibum character scores and OSDI scores of the two groups decreased. NIBUT, NITMH and LLT increased. Meanwhile, demodex count, Marx's line scores, meibum character scores and OSDI scores of the observation group were significantly lower than those in the control group. NIBUT, NITMH and LLT were longer/larger than those in the control group(P<0.001). No obvious abnormality of intraocular pressure or conjunctival/corneal injury was observed in either group.CONCLUSION:OPT is effective and safe in the treatment of demodex blepharitis.

On the division of labor in the maintenance of intersubjectivity: insights from the study of other-initiated repair in Vietnamese.

Few ideas have figured more centrally in the history of social theory than that of the division of labor. Here we ask whether conversational interaction, like other forms of social activity, exhibits a division of labor and, if so, what functions this serves and how it might be understood in relation to the theories of Marx and Durkheim. We begin by noting that, though conversational participants actively work to achieve and sustain understanding, much of the time this work is invisible and only its products are displayed in the form of sequentially fitted next turns at talk. However, in sequences of other-initiated repair, the work involved in the maintenance of intersubjectivity rises to the surface. On these occasions, we can see and thus describe what participants do to achieve and sustain what they take to be adequate understanding. In our data, which consist of video recordings of casual conversations among Vietnamese same-generation peers, participants continuously display an orientation to relations of relative seniority through the selection of terms used to accomplish interlocutor reference. This pervasive orientation is also reflected in practices of repair initiation. Specifically, seniors regularly initiate repair with so-called "open class" forms such as "huh?" and "ha?" which display a minimal grasp of the talk targeted, require little effort to produce and, at the same time, push responsibility for resolving the problem onto the trouble source speaker (i.e., the junior member of the dyad). In contrast, juniors often initiate repair of a senior participant's talk by displaying a detailed understanding of what has been said, either in the form of a repeat or a reformulation, and inviting the senior to confirm. We suggest then that this asymmetry in the distribution of initiation practices reflects a "division of intersubjective labor". We conclude with some thoughts on the theoretical implications of our findings and relate them not only to the theories of Marx and Durkheim but also to the writings of feminist sociolinguists who sought to describe the way in which women seem to be burdened more than men with what Fishman called "interactional shitwork."

Reconhecimento e política no interior da tradição dialética: Sócrates, o Ateniense, Marx e Lênin / Recognition and politics within the dialectical tradition: Socrates, the Athenian, Marx and Lenin

O objetivo deste artigo é o de chamar atenção para uma série de questionamentos que podem e, a nosso ver, ainda devem ser feitos, acerca de uma suposta, exclusiva e definitiva doutrina política de Platão. Para tanto, inicialmente, é levantada a seguinte pergunta: A República, um dos mais célebres e comentados diálogos escritos por Platão, seria, de fato, o único momento de "sua" obra em que este autor expressaria a "sua" teoria política (comunista)? Amparados na leitura e interpretação imanentista de Hector Benoit a respeito dos diálogos platônicos, partimos da hipótese de que Platão, não sendo Sócrates, expôs ­ através de um personagem denominado Ateniense ­ em seu último diálogo na temporalidade da léxis, As Leis, um projeto de cidade radicalmente distinto daquele d'A República. Tal projeto se baseia na unidade dos contraditórios para a formação educacional dos habitantes de uma cidade composta por amigos que tivessem todas as coisas realmente em comum; cidade que deveria ser realizada na prática, e não apenas na metafísica alma do filósofo, como Sócrates haveria proposto idealisticamente n'A República. Assim, longe de ter abandonado os seus posicionamentos comunistas da juventude, como defendem alguns intérpretes, Platão, ao final da vida, teria, na realidade, os encontrado de modo mais rigorosamente determinado. No final do artigo, Marx e Lênin assumem o protagonismo, o que sugere ser a teoria política um dos fios condutores da milenar tradição dialética

This article aims at drawing attention to a series of inquiries that may and, in our view, still should be asked about a supposed, unique and definitive political doctrine of Plato. Then, initially, the following question is raised: The Re-public, one of the most famous and commented dialogues written by Plato, would be in fact the only moment of "his" work in which this author would express "his" political theory (communist)? Supported by Hector Benoit's immanentist reading and interpretation of the Platonic dialogues, we hypothetize that Plato, not being Socrates, exposed ­ through a character called Athenian ­ in his last dialogue, TheLaws, in the temporality of the lexis, a project of city radically different from that on The Republic. Such a project is based on the unity of contradictories for the educational formation of the inhabitants of a city composed of friends who really had all things in common; city that should be put into practice, and not just in the metaphysical soul of the philosopher, as Socrates idealistically proposed in The Republic. Thus, far from having abandoned, as some interpreters argue, his youthful communist positions, Plato would have in fact found them, at the end of his life, in a more rigorously determined way. At the end of our article, Marx and Lenin take on the leading role, which suggests that political theory is one of the guiding threads of the millennial dialectical tradition

O universo categorial do método em Marx: notas para o debate / The categorical universe of method in Marx: notes for the debate

Resumo: O artigo estabelece diálogo com leitores interessados na compreensão das categorias do método em Marx, como formulação autêntica da reprodução da realidade. As reflexões foram sistematizadas a partir da disciplina "O método em Marx", cursada no Programa de Pós-Graduação em Serviço Social da PUC-SP. Conclui-se que a compreensão das categorias contidas no pensamento de Marx é essencial para o desenvolvimento da concepção histórico-materialista no processo de investigação.

Abstract: The articlelays down dialogue with readers interested in understanding of the categories of the method in Marx, whilst formulation authentic reproduction of actuality. The reflections they were systematized from of discipline "The method in Marx", studied at Program of Post-graduates in Service Social from the PUC-SP. Conclude what a comprehension of the categories contained of thinking in Marx are essential on deployment of a historical-materialist conception in the research process.

Impact of Perceived Product Value on Customer-Based Brand Equity: Marx's Theory - Value-Based Perspective.

Management research is allocating energies to seek ways to improve organizational performance. Branding has become a significant phenomenon that academicians and scholars have studied. Improving the brand's overall equity requires strategies that the brand managers must implement. Based on Marx's theory, the present study attempts to determine the role of product perceived value on customer-based brand equity, brand resonance and customer affective commitment, respectively. Moreover, this study also tries to determine the mediating roles of brand resonance and customer affective commitment in the relationship between product perceived value and customer-based brand equity, respectively. For this purpose, the data were gathered from 310 customers of branding products in China. The present study applied partial least square structural equation modeling for empirical analyses using Smart PLS software. The present study's findings acknowledge that product perceived value did not directly influence customer-based brand equity. However, results confirmed that product perceived value positively influences brand resonance and customer affective commitment. Furthermore, the outcomes of the present study also concluded that both brand resonance and affective commitment played a mediating role between product perceived value and customer-based brand equity, respectively. Theoretically, the study contributed to the literature by examining the influence of product perceived value on customer-based brand equity. The study also enriched the literature by providing key findings related to the mediating roles of brand resonance and customer affective commitment. Practically, the study is beneficial for the brands and they can enhance product perceived value by improving product design, effectively communicating product benefits, and executing effective promotional strategies.

Alienation: A useful concept for health inequality research.

AIMS: While Marxist class analysis has strongly influenced the development of health inequality research, other aspects of Marx's theory have received less attention. Among the most relevant of Marx's theoretical contributions for social inequalities in health is the theory of alienation. As empirical applications of the theory of alienation are currently scarce, the purpose of this commentary is to invigorate interest in alienation theory within the field of health inequality research by demonstrating its potential to illuminate the relationship between social inequality, psycho-social affects and health outcomes. RESULTS: Alienation theory describes how the class structure of capitalist societies creates experiences of powerlessness, estrangement and isolation. These experiences are further posited as emerging from the exploitation of labour, thus connecting social inequality to psychological wellbeing. Alienation theory is particularly compatible with psycho-social explanations of health inequalities, which similarly posits that social inequality affects health through psychological mechanisms. We argue that alienation theory contributes in three ways to health inequality research: a) by suggesting potential mechanisms and offering predictions that may be put to use in empirical research, b) by providing a potential explanation of the welfare state paradox, and c) by situating the psycho-social determinants of health within a critical analysis of the sources of social inequality in capitalist society. CONCLUSIONS: Alienation theory may provide a more textured understanding of the relationship between inequality and psycho-social health, while also foregrounding issues of class, power and exploitation that are often absent from psycho-social explanations.

The child everyone has inside: anthropology and the labor theory of value.

This paper revisits the debate on the relevance of the labor theory of value for the anthropological task. It argues that the labor theory of value can creatively inform and reformulate in critical ways a variety of social issues addressed through anthropological lenses. The argument is sustained by two main exercises: first, a critical overview of the foundations of the labor theory of value outlines the reasons why it opened new grounds for anthropological and, more generally, for social-scientific enquiries. Second, a discussion of the key points of friction between scholarship that attempts to develop an "anthropological" theory of value as an end in itself and anthropological scholarship that resorts to the (labor) theory of value to critically inform research.

The Significance and Function of Marx’s View of Life on COVID-19 Epidemic Prevention and Control / 中国医学伦理学

Finding a way of life education with Chinese characteristics and making up for the shortcomings of life education, which should become a major issue for the in-depth study of COVID-19 epidemic prevention and control in China. Marx’s view of life is a correct and scientific view of life, which is not only the guiding ideology of life education, but also the important resources for life education. While criticizing the views of life and death based on the western philosophy of life, it can also overcomes the limitations of Chinese traditional view of life. In the epidemic prevention and control, the in-depth study of Marx’s view of life will help to promote the practice of life education, enable people to establish a correct and scientific view of life and obtain the life sublimation in life practice.

Torna-te indivíduo: a noção de si e do outro no laço social capitalista / Become an individual: the notion of self and other in the capitalist social bond / Conviértete en individuo: la noción de sí mismo y del otro en el vínculo social capitalista

Resumo Este ensaio se dirige a um campo lacunar na crítica da economia política: o estudo e a disputa da noção de pessoa no laço social capitalista. Com esse intento, trazemos 'o indivíduo' ao foco, defendendo a ideia de que ele configura uma instituição capitalista, isto é, uma regra de pensamento sobre si e sobre os outros que dá consistência à sociedade. Mostramos, então, que essa consistência pode ser percebida na própria análise que Marx faz do capitalismo, uma vez que o preenchimento histórico do sentido do trabalho e a lógica dos conteúdos da mercadoria exigem a produção de sujeitos essencialmente heterônomos, submissos e eivados pela desigualdade. O indivíduo é, assim, reconfigurado, posto no lugar de uma solução de compromisso que propaga um discurso oposto: o de que nossa individualidade é uma marca aparente de autonomia, independência, igualdade e liberdade.

Abstract This essay addresses a lacunar field in the critique of political economy: the study and dispute of the notion of person in the capitalist social bond. With this intention, we bring 'the individual' to focus, defending the idea that he or she configures a capitalist institution, that is, a rule of thought about the self and the other that gives consistency to society. We show, then, that this consistency can be perceived in Marx's own analysis of capitalism, since the historical fulfillment of the meaning of labor and the logic of the contents of the commodity require the production of essentially heteronomous subjects, submissive and driven by inequality. The individual is thus reconfigured, put in the place of a compromise solution that propagates an opposite discourse: that our individuality is an apparent mark of autonomy, independence, equality and freedom.

Resumen Este ensayo se dirige hacia un campo abierto en la crítica de la economía política: el estudio y disputa de la noción de persona en el vínculo social capitalista. Con esta intención, enfocamos al 'individuo', defendiendo la idea de que el configura una institución capitalista, es decir, una regla de pensamiento sobre sí mismo y sobre los demás que da consistencia a la sociedad. Mostramos, entonces, que esta consistencia puede percibirse en el propio análisis del capitalismo de Marx, ya que el cumplimiento histórico del sentido del trabajo y la lógica de los contenidos de la mercancía requieren la producción de sujetos esencialmente heterónomos, sumisos y marcados por la desigualdad. El individuo es así reconfigurado, puesto en el lugar de una solución de compromiso que propaga un discurso opuesto: el de que nuestra individualidad es una marca aparente de autonomía, independencia, igualdad y libertad.

Articular Cartilage and Meniscus Predictors of Patient-Reported Outcomes 10 Years After Anterior Cruciate Ligament Reconstruction: A Multicenter Cohort Study.

BACKGROUND: Articular cartilage and meniscal damage are commonly encountered and often treated at the time of anterior cruciate ligament reconstruction (ACLR). Our understanding of how these injuries and their treatment relate to outcomes of ACLR is still evolving. HYPOTHESIS/PURPOSE: The purpose of this study was to assess whether articular cartilage and meniscal variables are predictive of 10-year outcomes after ACLR. We hypothesized that articular cartilage lesions and meniscal tears and treatment would be predictors of the International Knee Documentation Committee (IKDC), Knee injury and Osteoarthritis Outcome Score (KOOS) (all 5 subscales), and Marx activity level outcomes at 10-year follow-up after ACLR. STUDY DESIGN: Cohort study (prognosis); Level of evidence, 1. METHODS: Between 2002 and 2008, individuals with ACLR were prospectively enrolled and followed longitudinally using the IKDC, KOOS, and Marx activity score completed at entry, 2, 6, and 10 years. A proportional odds logistic regression model was built incorporating variables from patient characteristics, surgical technique, articular cartilage injuries, and meniscal tears and treatment to determine the predictors (risk factors) of IKDC, KOOS, and Marx outcomes at 10 years. RESULTS: A total of 3273 patients were enrolled (56% male; median age, 23 years at time of enrollment). Ten-year follow-up was obtained on 79% (2575/3273) of the cohort. Incidence of concomitant pathology at the time of surgery consisted of the following: articular cartilage (medial femoral condyle [MFC], 22%; lateral femoral condyle [LFC], 15%; medial tibial plateau [MTP], 4%; lateral tibial plateau [LTP], 11%; patella, 18%; trochlea, 8%) and meniscal pathology (medial, 37%; lateral, 46%). Variables that were predictive of poorer 10-year outcomes included articular cartilage damage in the patellofemoral (P < .01) and medial (P < .05) compartments and previous medial meniscal surgery (7% of knees; P < .04). Compared with no meniscal tear, a meniscal injury was not associated with 10-year outcomes. Medial meniscal repair at the time of ACLR was associated with worse 10-year outcomes for 2 of 5 KOOS subscales, while a medial meniscal repair in knees with grade 2 MFC chondrosis was associated with better outcomes on 2 KOOS subscales. CONCLUSION: Articular cartilage injury in the patellofemoral and medial compartments at the time of ACLR and a history of medial meniscal surgery before ACLR were associated with poorer 10-year ACLR patient-reported outcomes, but meniscal injury present at the time of ACLR was not. There was limited and conflicting association of medial meniscal repair with these outcomes.

Avante! 10 anos de um caminho se faz caminhando / Avante! you can only forge a path of 10 years by walking / Avante! 10 años de camino se hacen andando

Este artigo relata a trajetória de dez anos do Grupo de Pesquisa e Formação Sociocrítica em Educação Física, Esporte e Lazer da Universidade de Brasília (Avante-UnB). Para caracterização deste período, aborda a dimensão histórica, a abordagem teórico-metodológica e a agenda de pesquisa voltada ao estudo das políticas públicas de esporte e lazer. O texto destaca a tentativa do grupo de conciliar a produção cientifica, a formação de quadros e a militância acadêmica, o que implicou em alterações em sua organização e funcionamento. Ao mesmo tempo, realiza uma sucinta apresentação dos elementos epistemológicos e ontológicos do método de Marx. Esse referencial teórico-metodológico ilumina as pesquisas desenvolvidas pelo Avante sobre as seguintes temáticas: (i) a política de esporte nos governos Lula e Dilma; (ii) a política de esporte do Distrito Federal; (iii) o financiamento público para o esporte; e, (iv) análise e avaliação de políticas esportivas.

This article reports on the ten-year trajectory by the Socio-critical Research and Training Group in Physical Education, Sports and Leisure at the University of Brasília (Avante-UnB). To characterize that period, we address its historical dimensions, the theoretical-methodological approach, and the group's research agenda, focused on the study of public policies on sports and leisure. The text highlights the group's attempt to reconcile scientific production, staff training and academic activism, which caused changes in its organization and functioning. At the same time, we make a succinct presentation on the epistemological and ontological elements in Marx's method. This theoretical-methodological framework illuminates the research carried out by Avante on the following themes: (i) sports policies during Lula's and Dilma's tenures in the Brazilian presidency; (ii) sports policies in the Federal District; (iii) public funding for sports; and (iv) analysis and evaluation of sports policies.

Este artículo reporta la trayectoria de diez años del Grupo de Investigación y Formación Sociocrítica en Educación Física, Deportes y Ocio de la Universidad de Brasilia (Avante-UnB). Para caracterizar este período, se aborda la dimensión histórica, el enfoque teórico-metodológico y la agenda de investigación centrada en el estudio de las políticas públicas en materia de deporte y ocio. El texto destaca el intento del grupo por conciliar la producción científica, la formación del personal y el activismo académico, que implicó cambios en su organización y funcionamiento. Al mismo tiempo, hace una presentación sucinta de los elementos epistemológicos y ontológicos del método de Marx. Este marco teórico-metodológico ilumina la investigación realizada por Avante sobre los siguientes temas: (i) política deportiva en los gobiernos de Lula y Dilma; (ii) la política deportiva del Distrito Federal; (iii) financiación pública del deporte; y (iv) análisis y evaluación de políticas deportivas.