Objectives: to achieve the degree of saturation in study that applied the grounded theory. Methods: qualitative research, carried out in four Family Health Units, between June 2018 and May 2019. The data from the interviews with 30 health professionals and non-participant observation were coded in the stages: open, axial and integration. Results: the degree of saturation was achieved by two conceptual models - theoretical saturation and inductive thematic. Theoretical saturation was considered: the development of conceptual codes and observation, in the collection and analysis of data, when they generated new categories/subcategories or only indicated increasing instances. For thematic inductive saturation, the use of new codes based on each interview stood out. Final Considerations: the visual layout for the number of codes, the theoretical scope of the concepts and the delimitation of the sample groups guided the identification of the degree of saturation for the development of the conceptual body that supported the substantive theory.

Objectives: to unveil the meanings that nurses attribute Information and Communication Technologies for the nursing work process Methods: qualitative research, theoretically and methodologically based on the Complexity Theory and on the Grounded Theory, respectively. Research with 19 participants, being 12 clinical nurses, and 7 resident nurses. Semi-structured interviews were used for data collection. Results: the results revealed the meanings that clinical nurses attribute to Information and Communication Technologies and, thus, the motivations and limitations for the use of these technologies, pointing out possibilities and strategies that impact the nursing work process, based on the interactions promoted by the official and non-official use of these resources. Final Considerations: the meanings that nurses attribute to Information and Communication Technologies are dependent on their ability to successfully employ those technologies and their importance to the work process developed by the professionals.

RESUMO Objetivo: compreender as interações do enfermeiro na prática do gerenciamento do cuidado de enfermagem à criança em condição crônica hospitalizada. Método: foram utilizados como referenciais teórico e metodológico, respectivamente, o Pensamento Complexo e a Grounded Theory. Participaram do estudo 18 sujeitos organizados em três grupos: enfermeiros, técnicos de enfermagem e familiares. A técnica empregada para a coleta de dados foi a entrevista semiestruturada. A análise dos dados seguiu as três etapas de codificação: aberta, axial e seletiva. Resultados: a categoria "Necessitando gerenciar o cuidado de enfermagem à criança em condição crônica na Unidade de Internação Pediátrica" e suas respectivas subcategorias apresentam as complexas vinculações intersubjetivas estabelecidas pelo enfermeiro que sustentam a prática do gerenciamento do cuidado de enfermagem. Conclusão: nota-se dificuldade dos profissionais de enfermagem em interagir com o familiar da criança e na implementação do processo gerencial de cuidado, a dialógica ordem/desordem/interação/organização.

Objectives: to understand the meanings that nursing students and professors attribute to research and research teaching in the context of undergraduate studies. Methods: this is a qualitative research, whose theoretical and methodological frameworks were Complexity Theory and Grounded Theory. Sixteen students and 14 undergraduate nursing professors from a public university in Rio de Janeiro were interviewed. Semi-structured interviews were used for data collection. Results: causes, actions, and interactions related to research and teaching research in undergraduate nursing are connected with learning science for nursing praxis, which ranges from students' ability to question to their and their professors' understanding of social demands guided by science. Final Considerations: nursing professors and students signify research and teaching of this as a structure for the training of nurses for the critical professional capacity needed to meet social demands.

Objective: To understand the meanings revealed by nurses about sustainable care in its connections with the management of Healthcare Waste in hospital. Method: Qualitative research, whose theoretical and methodological references were, respectively, Complexity Theory and Grounded Theory. Nursing professionals from a public hospital in Rio de Janeiro participated in the study. Data was collected through semi-structured interviews. Results: The actions-interactions signified by the nursing staff, for the management of Healthcare Waste, revealed an understanding of the socio-environmental responsibility of the rational use of material resources; of the need for permanent education to promote environmental education; of the need to supervise the proper management of waste. The professionals perceive themselves as a driving force for reordering positive changes in this context. Conclusion: The participants signaled implications between knowledge, rational use of materials, waste generation and disposal, health economics and quality of care. From these connections, we can deduce the complex meaning of sustainable hospital nursing care in the context of Healthcare Waste management.

Objective: To understand the intervening conditions of care management for the hospitalized child with chronic cancer pain. Method: Qualitative research, anchored in the methodological and theoretical frameworks, respectively, Grounded Theory and Complex Thinking. The semi-structured interview and non-participant observation were used to collect the data. Twenty-one health professionals, organized in three sample groups: nurses; nursing technicians; and professionals of the multiprofessional health staff. Results: They emerged as intervening conditions of care management: human resources and materials, teamwork, absenteeism, professional relocation, professional qualification, family, playful, dialogue, empathy and caring relationship. Conclusion: It was understood as limiting conditions for care management: deficits of human resources and materials, absenteeism, ineffective teamwork, professional relocation, and insufficient professional qualification. On the other hand, they were presented as facilitating conditions: adequate professional knowledge, effective teamwork, dialogue, empathy, playful and affective relationship with the child.