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Context: there is little empirical evidence of the relationship between the implementation of lean techniques (such as the pull system) and their real effect on supply chain performance. Objective: the purpose of this paper is to describe the process of implementing the pull production logic in the supply chain, reporting the historical evolution of indicators, such as inventory levels and lead times over 23 months of intervention. Methods: an action research project was carried out describing chain intervention steps in 2017-2019, divided into phases as follows: planning, data collection, implementation of the action, analysis and evaluation of the results. Results: the main contribution was to demonstrate that the production shift from push to pull had a positive impact on lead time, inventory, and planning routines indicators. Inventory levels were reduced by more than 30% and lead times were down approximately 40%. In addition, sales forecast assertiveness increased. Conclusion: this paper may provide a reference for organizations that want to make similar changes in their supply chains and significantly change the planning routine of their suppliers and distributors by implementing the pull logic. [ABSTRACT FROM AUTHOR]

In this paper we present a literature review study based on Brazilian articles in the area of Science Education that employ the construct of Epistemic Practices (EPs). The corpus is comprised by eighteen articles from journals classified as Qualis A1 or A2, published between 2008 and 2021. The analysis is based on the thematic foci of the studies, the definitions of EPs presented, the dialogue with the work of Gregory Kelly and the methodologies used. The results demonstrate that: i) the construct has been explored more frequently in studies that deal with Inquiry-based Science Teaching; ii) in addition to the definition of EPs, most national articles make use of other ideas conceived and supported by Kelly; iii) the most common aspect is that the construction of scientific knowledge within a community involves proposition, communication, evaluation and legitimation, and that the promotion of engagement in EPs should figure among the didactic objectives of science classes; iv) the analyzed production does not share theoretical-methodological references that guided Kelly's work on EPs, such as Interactional Ethnography. We argue that EPs have the potential to contribute to advances in discussions in the field of Science Education in Brazil in the sense of delimiting the assumptions of theories and empirical studies, as well as indicating new research directions and adding new members to the knowledge-producing community. [ABSTRACT FROM AUTHOR]

Undergraduate Physics courses has one of the highest dropout rates in Brazilian universities. To face this problem, it is necessary a deep understanding of the causes that lead students to withdraw or persist in their undergraduate courses. Despite empirical research, the validation of a theoretical model that explains dropout and student persistence in the Brazilian context is a current challenge for researchers in the field. In this paper, we evaluate the suitability of the Tinto's Persistence Motivation Model, developed in the United States of America, to represent the scenario of an undergraduate Physics course at a Brazilian public university. We carried out a quantitative study from data collected with a questionnaire answered by 168 undergraduate students. The questionnaire brings up statements related to the predictors of student persistence according to the Tinto model (academic self-efficacy, sense of belonging and perception of curricular relevance) and the self-declared intention of persistence. Statistically significant correlations were identified between all constructs, endorsing the theory proposed by Tinto. The linear regression model was able to predict 37% of the variance of intention to persist. This indicates that the model partially represents the investigated setting. New studies must be done to identify other aspects that impact student persistence in the investigated context. [ABSTRACT FROM AUTHOR]

This paper explores the possibility of integrating theory and empiricism in scientific production and knowledge within the field of Law, utilizing Niklas Luhmann's Theory of Systems as a foundation. The study proposes to consider the concept of abstraction control as a means to apply Systems Theory, aiming to analyze empirical data and observe and describe law as a system within modern society. The study emphasizes the need to articulate theory and empiricism in legal scientific production, emphasizing the understanding and application of abstraction and abstraction control concepts. This enables the recognition of two conflicting approaches on mechanisms for observing reality. The theoretical foundation of this work includes scholars such as Niklas Luhmann, Barros, and Fonsceca, who have contributed to reinforcing the perspective of abstraction control as a way to apply Luhmann's systems theory in empirical research. This approach combines epistemic and theoretical concerns with methodological tools in the context of empirical research in law. [ABSTRACT FROM AUTHOR]

This paper aimed to analyze, from the perspective of high school students considered undisciplined, the repercussions that the school structure and its organization has on their behavior within the school context. To this end, empirical research of an exploratory-descriptive nature was carried out, based on a qualitative [ABSTRACT FROM AUTHOR]

The phonological nature of /l/ in European Portuguese (EP) and its acquisition by monolingual Portuguese children have been discussed by researchers and clinicians over the last years. The main goals of this paper are to offer a description of /l/ in recent acquisition data stored in Ramalho-EP (success rates and repair strategies) and to discuss the different phonological representations proposed for /l/ in EP, by using our data and other acquisition data available in the literature. Results show an effect of syllable complexity in the acquisition of /l/ (the trend Simple Onset >> Coda >> Complex Onset was attested), although /l/ is not acquired in any of the syllable constituents (success rates below 76%). The preference for the repair segments [w, υ] was interpreted as empirical evidence for the processing of /l/ as [+continuant], as proposed by Mateus e Andrade (2000) and against Amorim e Veloso (2021). Moreover, these variants and the late acquisition of /l/ favor the use of [+approximant] to represent /l/ in EP, the feature proposed by Amorim e Veloso (2021) to replace [+lateral] in the phonological system. [ABSTRACT FROM AUTHOR]

this paper presents a systematic survey of publications and proposes a qualitative discussion on the scientific production of studies in Morphology Acquisition in comparison to other levels of linguistic analysis within the field of Language Acquisition and Development in Brazil. The results show that in the last 30 years there have been fewer studies on morphological phenomena during first language acquisition than studies on the acquisition of phonological, syntactic, semantic and pragmatic aspects in the selected corpus. The greatest interest of research on Brazilian Portuguese is in the acquisition of the verbal system and addresses the phenomenon of regularization and the existence of variant morphological forms in the acquisition of morphophonological rules. Then, the development of the nominal system arouses interest, with the investigation of the variable number agreement, with control of the occurrence of redundant and non-redundant agreement, followed by the acquisition of the gender category with special interest in the variation promoted by the morphemic exchanges carried out by the kids. Among the little representative studies on derivational morphology, there are few studies that carry out an investigation in relation to research questions defined in a specific theoretical framework. Studies on the survey of affix occurrences and the investigation of children's morphological awareness are more present. Finally, a research agenda is drawn up for studies on the acquisition of morphological and lexical aspects and it is emphasized that the study of such empirical issues is only justified insofar as it appears behind a language model for morphology and for the lexicon. [ABSTRACT FROM AUTHOR]

In this paper we propose a methodological tool that seeks to contribute to the empirical study of practices in organization studies. There is a need for innovating and improving analytical tactics for theorizing about practice, particularly for helping connect localized social interactions to broader contexts. We propose the "temporal bracketing of discourses" tool and provide a detailed example that empirically illustrates its application. [ABSTRACT FROM AUTHOR]