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High-speed flows encountered in most applications typically have very high Reynolds numbers and are often highly turbulent. Even in a laboratory-scale high subsonic or supersonic (high-speed) flow, velocities could vary over 3 orders of magnitude, and the turbulence spatial and temporal scales could span over 4-5 orders of magnitude. Exploring detailed physics of such flows presents major challenges to both experimental and computational researchers. An ultimate velocimetry technique would provide detailed, accurate, volumetric, real-time velocity data in such flows. With that being the goal, currently there are two planar velocimetry techniques that are developing rapidly into very useful tools with the potential of providing accurate velocity information in high-speed flows. The techniques are planar Doppler velocimetry (PDV) and particle imaging velocimetry (PIV). Whereas PDV has been under development for a relatively short period of time and is becoming a powerful technique, more accurate in high-speed flows, PIV is an established technique in low-speed flows and is now breaking ground in high-speed flows. The purpose of this review is to provide detailed background on these two techniques, to discuss the strengths and constraints of each technique, and to outline the areas in need of further improvement and development. The aims are to assist the novice users in their proper usage and to help those who are in the process of deciding which technique is more appropriate in their specific applications.

Parental daily care and adequate stimuli are extremely important for development and safety of premature babies at home. This study aimed to analyze safe home care for babies born under 32 weeks from parents' perspectives, with a view to a longitudinal promotion of baby development. A qualitative study, based on philosophical hermeneutic approach proposed by Hans-Georg Gadamer, in which dialogue as a principle provides understanding and fusion of experiences and knowledge. Semi-structured interviews were conducted with 18 parents of premature babies under 1 year of age. Thematic analysis proposed by Braun and Clarke was applied using an inductive approach. Elements related to safe care were identified: home arrival, safe home care: preserving baby health and development, support for safe home care, and development of parental care to promote baby safety. These elements can provide a basis for safe home care that needs to be reinforced longitudinally to increase particularities of baby protection, avoid accidents and illnesses, and improve appropriate developmental stimuli and positive parenting., Competing Interests: Declaration of Conflicting InterestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

Objective: To report the structures of the experience of nurse's home visits to premature and low birth weight newborns., Method: This is a descriptive study of the experience report type, structured on the experience of the nurse authors in the development of 48 home visits in a city in the state of São Paulo and its microregion between August 2020 and 2021 with eight mothers of premature and low weight newborns., Results: The guiding documents "Home visit for families with preterm and low birth weight newborns" and "Strategy of guiding questions for home visits" were created and used to promote open narratives from parental caregivers about caring for at-risk newborns, creating a relational space aimed at joint construction., Conclusion: The documents used have favored home visits, helping nurses to establish professional bonds and build relational space through dialogue when conducting their activities in the home environment.

Objective: To analyze the childbirth experience focusing on the intervening factors and on the delivery method., Method: A sequential and explanatory mixed-methods study guided by the World Health Organization document for positive childbirth experiences. The participants were puerperal women in a maternity teaching hospital from inland São Paulo (Brazil). The first quantitative stage involved descriptive analysis with Poisson regression of 265 answers to the "Termômetro da Iniciativa Hospital Amigo da Mulher e da Criança" ("Women- and Baby-Friendly Hospital Initiative Thermometer") questionnaire. The second stage, qualitative, thematically analyzed the interviews conducted with 44 puerperal women who took part in the first stage. Data integration was by connection., The Results and Discussion: The analysis by connection showed that among the factors that restricted the positive experience, C-section was predominant (61.9%), understood as an option due to fear of pain, the treatment modality and previous traumas. Restrictions referring to the presence of a companion (99.6%), not having privacy (83%), disrespectful situations (69.5%), too many touches (56.9%) and the absence of skin-to-skin contact (55%), among others, potentiated fear, loneliness, concern, shame, the perception of disrespect and insecurity with the assistance provided. The promoting factors were as follows: choosing the companion (95.4%) for collaborating in the safety perception, not having infections (83.9%), having continuous team monitoring (82.2%) and pain relief methods (78.9%), which were valued by the women., Conclusion: The intervening factors that promoted positive experiences were related to clinical and protocol-related issues and to service availability. The restrictive factors were associated with excess interventions, deprivation of rights and of choice, absence of privacy and restriction referring to the presence of a companion. Women with a normal postpartum period felt more insecure and disrespected when compared to those subjected to C-sections, whose choices were considered, although they had lower prevalence of skin-to-skin contact. There is an urgent need to apprehend women's experiences and turn them into actions that guarantee their lives in a safe and respectful way., (© 2024. The Author(s).)

Background: The diagnosis of a life-limiting condition of a child in the perinatal or neonatal period is a threat to parental hopes. Hope is an interactional and multidimensional construct, and in palliative care, it is a determinant of quality of life, survival, acceptance and peaceful death., Objective: To map scientific evidence on parents' hope in perinatal and neonatal palliative care contexts., Method: a scoping review theoretically grounded on Dufault and Martocchio's Framework, following the Joanna Briggs Institute methodological recommendations. Searches were performed until May 2023 in the MEDLINE, CINAHL and PsycINFO databases. The searches returned 1341 studies., Results: Eligible papers included 27 studies, most of which were carried out in the United States under a phenomenological or literature review approach. The centrality of women's perspectives in the context of pregnancy and perinatal palliative care was identified. The parental hope experience is articulated in dealing with the uncertainty of information and diagnosis, an approach to which interaction with health professionals is a determinant and potentially distressful element. Hope was identified as one of the determinants of coping and, consequently, linked to autonomy and parenthood. Cognitive and affiliative dimensions were the hope dimensions that predominated in the results, which corresponded to the parents' ability to formulate realistic goals and meaningful interpersonal relationships, respectively., Conclusion: Hope is a force capable of guiding parents along the path of uncertainties experienced through the diagnosis of a condition that compromises their child's life. Health professionals can manage the family's hope by establishing sensitive therapeutic relationships that focus on the dimension of hope. The need for advanced research and intervention in parental and family hope are some of the points made in this study., Protocol Registration: https://osf.io/u9xr5/ ., (© 2023. The Author(s).)

Objective: to identify factors associated with fear of COVID-19 among women who experienced pregnancy or childbirth during the pandemic., Methods: a cross-sectional study, nested within a prospective cohort, using an online survey, from August 2021 to February 2022, based on descriptive data analysis., Results: of the 431 participants, 52.8% were postpartum women and 20.1% were pregnant women. With regard to fear of COVID-19, a mean score of 20.46 was obtained (moderate fear). The highest fear scores were present in women whose newborns were admitted to hospital in neonatal critical units (p=0.032), and the lowest among those covered by supplementary health (insurance) (p=0.016)., Conclusion: among pregnant and postpartum women, high fear of COVID-19 translated into the possibility of having newborns admitted to hospital in a critical unit. The importance of supporting actions to support pregnant/postpartum women's mental health in relation to COVID-19 or other threats that may influence the neonatal outcome stands out.

Objective: to compare the effectiveness of different diagnostic methods to estimate postpartum blood volume loss., Methods: a systematic review of effectiveness according to PRISMA and JBI Protocol. Searches in PubMed/MEDLINE, LILACS, Scopus, Embase, Web of Science and CINAHL, with descriptor "Postpartum Hemorrhage" associated with keyword "Quantification of Blood Loss". Tabulated extracted data, presented in metasynthesis and meta-analysis was applied to quantitative data. To assess risk of bias, JBI Appraisal Tools were applied., Results: fourteen studies were included, published between 2006 and 2021. Quantification of loss by any method was superior to visual estimation and is highly recommended, however the studies' high heterogeneity did not allow estimating this association., Conclusion: the studies' high heterogeneity, with a probable margin of error given the uncontrolled factors, indicates the need for further studies, however quantification proved to be effective in relation to visual estimate. PROSPERO registration CRD 42021234486.

Objectives: to compare exclusive breastfeeding prevalence versus artificial feeding in newborns of mothers with COVID-19., Methods: a systematic review of prevalence, according to JBI. Searches in PubMed®, Embase, CINAHL, LILACS and Web of Science™ databases in August 2021. Cross-sectional, longitudinal or cohort studies were selected, without language and time limitations that showed breastfeeding prevalence or that allowed calculation., Results: fifteen articles published in 2020 and 2021, cohort (60%) or cross-sectional (40%) were analyzed. The average of exclusive breastfeeding in mothers with COVID-19 was 56.76% (CI=39.90-72.88), and artificial breastfeeding, 43.23% (CI = 30.99 - 55.88), without statistically significant differences., Conclusions: despite the recommendations for maintaining breastfeeding, there was a reduction worldwide, when compared to periods prior to the pandemic. With advances in science, these rates have improved, showing the impact of evidence on practices. As limitations, study sources are cited. It is recommended to carry out new studies. PROSPERO registration CRD42021234486.

Background: Despite the benefits of breastfeeding, early weaning is a reality, so less than 50% of children worldwide and in Brazil are on exclusive breastfeeding in the sixth month of life. A strategy to counteract this scenario is breastfeeding counseling. This study aims to verify the effectiveness of individualized counseling by nurses trained in breastfeeding counseling, on the duration of exclusive breastfeeding, compared to standard care., Methods: Multicenter, randomized, parallel, and open clinical trial, with primiparous women aged over 18 years, hospitalized in rooming-in wards at participating centers and hemodynamically stable, aware, and oriented, who had a single-fetus pregnancy and gave birth, regardless of the type of delivery, with live child, gestational age of 37 to 42 weeks and birth weight greater than 2500 g. The women will be initially approached in rooming-in wards and, upon consent to participate in the study, will be allocated through randomization by blocks composed of eight participants in two groups: intervention and control. The randomization lists will be organized by a central without involvement with the study, which will manage the allocation groups and be prepared in the Randon® program. Women allocated to the intervention group will receive breastfeeding counseling by trained nurses, and those in the control group will receive standard care at the center participating in the study., Discussion: The results can contribute to breastfeeding by evidencing possible exclusivity and duration of the counseling trained nurses provide., Trial Registration: REBEC RBR-4w9v5rq (UTN: U1111-1284-3559) ( https://ensaiosclinicos.gov.br/rg/RBR-4w9v5rq ). Posted on March 20, 2023., (© 2023. The Author(s).)

Objectives: to present a theoretical model for the interactional context of health professionals and families of children and adolescents under palliative care., Methods: qualitative study based on the theoretical frameworks of Grounded Theory and Symbolic Interactionism. Ten palliative care professionals took part in this study through semi-structured interviews employing snowball technique from 2020 to 2021., Results: the comparative data analysis resulted in the theoretical model "Searching for human connection to transcend symbolisms in pediatric palliative care". It reveals symbolic elements that substantiate the construction of a collaborative context integrating two phenomena: "Overcoming boundaries and intertwining paths" and "Embracing suffering to weave meaningful experiences". Symbolisms in palliative care guide the behavior of families and professionals, which makes them the key factor to be managed., Final Considerations: symbolisms and suffering continually integrate the interactional experience of professionals. Empathy and compassion are fundamental elements to enable their connection with families.

Objective: To report and discuss the experience of the Circle of Culture in a school space, with attention to the social identity of adolescents., Method: Action research, conducted under the assumptions of the Circle of Culture, from August to December 2019. Participants were 16 adolescents, enrolled in Elementary School, in a state public school, in the rural district of a city of São Paulo. Data collection took place through photographic records, participant observation and field diary., Results: The relations of friendship were the central agenda of the Circles of Culture when dialogues about their structuring and influence on the identity construction were developed., Conclusion: Circles of Culture mediated by health professionals in the school setting have the power to problematize the reality of each adolescent's life and, simultaneously, dialogue about the common, an aspect that empowers identity projects.

Introduction: Literature supports numerous benefits of skin-to-skin contact for neonatal adaptation to extrauterine life and bonding/attachment, but few studies explore the effects of skin-to-skin contact on maternal outcomes. This review aims to map the evidence on skin-to-skin contact in the third stage of labor for postpartum hemorrhage prevention., Methods: Scoping review, which covered stages recommended by the Institute Joanna Briggs, including studies from the PubMed, EMBASE, CINAHL, LILACS, Web of Science, and Scopus databases, using the descriptors "Postpartum hemorrhage", "Labor stages, third", "Prevention" and "Kangaroo care/Skin-to-skin"., Results: 100 publications on the subject found, 13 articles met the inclusion criteria, with 10,169 dyads were assessed in all studies. Publications from 2008 to 2021 were mostly written in English and designed as a randomized controlled trial. Skin-to-skin contact was effective and significant in: reducing the duration of the third stage of labor; placenta delivery; uterine contractility and physiological involution; absence of atony, decreasing blood loss with lower rates of erythrocyte and hemoglobin drop; reducing the need for synthetic oxytocin and/or ergometrine to control bleeding; and reducing changing pads per period and length of stay., Discussion: Skin-to-skin contact was considered an effective, low-cost, and safe strategy, with positive effects already established in the literature for infants and extremely favorable results in postpartum hemorrhage prevention cases, being highly recommended in assistance for the dyad. Open Science Framework Registry ( https://osf.io/n3685 )., (© 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)

Objective: to analyze nurses' statements about health care for gay adolescents., Method: qualitative study, anchored on the Thematic Analysis of Clarke and Braun, with adoption of Symbolic Interactionism as a theoretical framework, since it favors the understanding of the relationship between behaviors, interactions, and social meanings. Twelve nurses recruited using the snowball sampling technique were remotely interviewed via the Google Meet® video-conferencing app., Results: four themes were elaborated throughout the comprehensive-interpretative process: "Gay adolescents, agendas, and relation with health;" "The gay adolescent's family and care;" "Relationship with gay adolescents in care," and "Limits to nursing care for gay adolescents.", Conclusion: the statements denounce stigmas and symbols derived from cisheteronormativity as intervening in the relationship and indicate the urgency of investing in the intersubjective encounter with gay adolescents and their families in a horizontal, affective, and empathic relationship, with chances of favoring public defense of the right to health. There are comments on the nurses' attitude and qualification of care for this population., Keypoints: (1) Tendency towards "de-subjectifying" objectification in health practices. (2) Hegemony of cisheteronormative logic as a limitation to care. (3) Sex and sexually transmitted infections (STIs) as stigmas attached to gay adolescents. (4) Family and health care for homosexual adolescents: opportunities and obstacles. (5) The limits and powers of nursing to enable equity in care for gay adolescents.

Objective: to determine the profile of pregnancies and prevalence of adherence to puerperal consultation among adolescent puerperal women compared to non-adolescent puerperal women served in an outpatient clinic of a teaching hospital in the rural area of Minas Gerais., Method: cross-sectional study nested in a cohort of puerperal women; non-probabilistic sample, by convenience; adolescent pregnancy - dependent variable; sociodemographic, clinical and obstetric - independent variables. It employed its own instrument, tested by means of a pilot test. Prevalence ratios and confidence intervals were calculated; chi-square and Fisher's exact tests were applied, considering a significance level of 5%, and Poisson regression with robust variance., Results: we interviewed 121 puerperal women, of which 18.2% (22) were adolescents, and observed among them low educational level (p<0.001); fewer pregnancies with pathologies (p=0.016); predominance of primiparous women (p<0.001), and higher rates of normal delivery (p=0.032). The prevalence of adherence to puerperal consultation was 34.7% and 31.8% for adolescents. There were no differences regarding adherence and age of puerperal women., Conclusion: adolescents did not present negative obstetric and neonatal outcomes, although a lower educational level was observed. Association was found between early age and absence of diseases during pregnancy and higher rates of normal vaginal deliveries. Adherence to puerperal return visit was slightly lower, but without statistical significance., (1) Adolescent puerperal women had low educational level. (2) Association between early age and absence of diseases during pregnancy. (3) There were higher rates of normal vaginal deliveries among adolescents. (4) Adolescents did not present negative obstetric and neonatal outcomes. (5) There were no differences regarding adherence and age of puerperal women.

Background: Antenatal care is an important tool to prevent complications and decrease the incidence of maternal and antenatal morbidity and mortality. In Brazil, quality, access, and coverage of antenatal care are described as insufficient. Consequently, high rates of caesarean section, congenital morbidities such as syphilis, maternal and early neonatal mortality occur, as well as obstetric violence and dissatisfaction with healthcare. It is important to reflect on health disparities in antenatal care. This study aimed to carry out a critical analysis of antenatal care in one city of São Paulo state in Brazil., Methods: A case study was performed, structured in a descriptive cross-sectional epidemiological study and two qualitative studies. Data for the epidemiological study was obtained from the Informatics Department of the Unified Health System (DATASUS) of Brazil, which was processed in the Epi-info v software 7.2. and treated descriptively and by the Mantel-Haenszel or Fisher's exact tests. Qualitative data was collected through semi-structured interviews with 30 pregnant women and 8 nurses in the primary healthcare service of one city in São Paulo. The qualitative data analysis was based on thematic content analysis., Results: The data revealed a limited quality of antenatal care. More than six antenatal visits increased the probability of a caesarean section by 47% and babies born vaginally had a lower Apgar score. There was little participation of nurses in antenatal care and women described it as "a quick medical appointment", limited by protocols, based on procedures and insufficient in dialogue. Antenatal care appeared to be fragmented and permeated by challenges that involve the need for change in management, performance, and ongoing training of professionals, as well as in the guarantee of women's rights., Conclusions: Caesarean section was statistically related to the number of antenatal care visits. Interactions between professionals and pregnant women were poor and resulted in dissatisfaction. There is an urgent need to connect health indicators with the findings from professionals and women's experiences to improve the quality of antenatal care., (© 2022. The Author(s).)

Signaling of two-component systems by phosphoryl transfer requires interaction of the sensor kinase with the response regulator. Interaction of the C4-dicarboxylate-responsive and membrane-integral sensor kinase DcuS with the response regulator DcuR was studied. In vitro , the cytoplasmic part of DcuS (PAS C -Kin) was employed. Stable complexes were formed, when either DcuS or DcuR were phosphorylated ( K d 22 ± 11 and 28 ± 7 nM, respectively). The unphosphorylated proteins produced a more labile complex ( K d 1380 ± 395 nM). Bacterial two-hybrid studies confirm interaction of DcuR with DcuS (and PAS C -Kin) in vivo . The absolute contents of DcuR (197-979 pmol mg -1 protein) in the bacteria exceeded those of DcuS by more than 1 order of magnitude. According to the K d values, DcuS exists in complex, with phosphorylated but also unphosphorylated DcuR. In live cell imaging, the predominantly freely diffusing DcuR becomes markedly less mobile after phosphorylation and activation of DcuS by fumarate. Portions of the low mobility fraction accumulated at the cell poles, the preferred location of DcuS, and other portions within the cell, representing phosphorylated DcuR bound to promoters. In the model, acitvation of DcuS increases the affinity toward DcuR, leading to DcuS-P × DcuR formation and phosphorylation of DcuR. The complex is stable enough for phosphate-transfer, but labile enough to allow exchange between DcuR from the cytosol and DcuR-P of the complex. Released DcuR-P diffuses to target promoters and binds. Uncomplexed DcuR-P in the cytosol binds to nonactivated DcuS and becomes dephosphorylated. The lower affinity between DcuR and DcuS avoids blocking of DcuS and allows rapid exchange of DcuR. IMPORTANCE Complex formation of membrane-bound sensor kinases with the response regulators represents an inherent step of signaling from the membrane to the promoters on the DNA. In the C4-dicarboxylate-sensing DcuS-DcuR two-component system, complex formation is strengthened by activation (phosphorylation) in vitro and in vivo , with trapping of the response regulator DcuR at the membrane. Single-molecule tracking of DcuR in the bacterial cell demonstrates two populations of DcuR with decreased mobility in the bacteria after activation: one at the membrane, but a second in the cytosol, likely representing DNA-bound DcuR. The data suggest a model with binding of DcuR to DcuS-P for phosphorylation, and of DcuR-P to DcuS for dephosphorylation, allowing rapid adaptation of the DcuR phosphorylation state. DcuR-P is released and transferred to DNA by 3D diffusion.

Objective: To understand the childbirth experience of women assisted in a maternity hospital signatory of the Adequate Childbirth Project., Methodology: Mixed study, carried out in 2018. Applied the Free Word Association Test in 62 pregnant women and then conducted an open interview with 18 of them, then puerperal women, and, for analysis, the Central Nucleus Theory, Word Cloud, and thematic Categories, respectively., Results: The predominant words revealed in the quantitative stage were: pain, wonderful, recovery, anxiety, and desires. The qualitative analysis is presented by thematic categories "Women's insecurities in the PPA model" and "New perspectives from experience in the PPA model"., Conclusions: The women's experiences demonstrated that the model favored the remodeling of childbirth care. However, they still experience pain, dissatisfaction, and lack of autonomy. The impossibility of choosing a trusted professional was a source of insecurity, and nurses had no voice in decisions and actions in care.

Aim: The study aim was to map clinical characteristics and the evolution of pregnancies in pregnant women with confirmed diagnosis of SARS-CoV-2 infection., Methods: Searching four databases, studies were investigated that described the evolution of pregnancies in women diagnosed with SARS-CoV-2 infection through laboratory tests. A scoping review was undertaken, including 35 articles published in English. Two pairs of independent researchers synthesized the data., Results: Most studies were case studies or case series and had a low risk of bias. A predominance of cases was found in women over the age of 30 years who got infected in the third term of pregnancy and who had comorbidities. The prematurity index varied with the heterogeneity of the samples, and the cases of abortion occurred in combination with severe forms of infection. Caesarean section deliveries predominated, indicated mainly by respiratory decompensation caused by infection. Most women were discharged., Conclusion: Based on the reviewed studies, the profile and evolution of pregnant women infected with COVID-19 could be evaluated., (© 2021 John Wiley & Sons Australia, Ltd.)

Objective: Analyze available evidence related to SARS-CoV-2 infection and vertical transmission., Methods: Scoping review, according to the Joanna Briggs Institute and PRISMA-ScR. Searches were conducted in five electronic databases to find publications about coronavirus infection and vertical transmission. Data were extracted, analyzed and synthesized by three independent researchers using a descriptive approach., Results: The search resulted in 76 publications. After selective steps, 15 articles - retrospective descriptive or case studies - were analyzed, all in English. In order to track the infection, specimens were collected from neonates through nasal swabs and C-reactive protein from breast milk, cord blood, amniotic fluid, placenta and vaginal secretion was analyzed. A small percentage of neonates tested positive for COVID-19, but these cases were not attributed to vertical transmission., Conclusion: Vertical transmission could not be demonstrated. Research protocol registered with the Open Science Framework (https://osf.io/fawmv).

Objective: To analyze online information available on the internet about COVID-19 and childhood cancer and discuss its reach potential with regard to supporting family functioning., Method: Documentary research supported by thematic analysis and the concept of family functioning and support. A total of 27 publications available on the websites of reference institutions in pediatric oncology, from March 1 to May 31, 2020, were analyzed., Results: Two themes guided the presentation of results with emphasis on language and sustainability assumptions to content, and to conveyed meanings and intentionality. The publications prospect families/people with basic knowledge about COVID-19 and have little information specific to the relationship with childhood cancer., Final Considerations: Threatening circumstances require informational support. This study revealed incipient of specificity and a prescriptive tone in the online information available in early times of the pandemic, questioning the scope of support for family functioning.

Objectives: To analyze the motivation of neonatal intensive care nurses and the meanings attributed to the continuity of professional training., Methods: qualitative study, developed between August and December 2018, based on interviews with 16 nurses working in Neonatal Intensive Care in cities in seven Health Regions in the State of São Paulo. The theory of self-determination and narrative analysis supported this study., Results: the search for specialization and qualification of care is the plot, with the motivation for training initially based on the specialization and qualification of care. Over time, they revisit understandings carried out about care, making considerations about training, factors that influence motivation., Final Considerations: the motivation expressed by the nurse in the search for training is shown through movements marked by the limitations apprehended in practice on the care of the risk neonate and the acquisition of knowledge to act with quality in this specific health scenario.

Objective: to unveil the interrelation of childhood colic management by mothers and Family Health Strategy professional., Methods: a qualitative, exploratory and descriptive research carried out with 4 Family Health Strategy teams and 31 mothers who experienced childhood colic. Data collection included, respectively, focus group and individual unstructured interview. Symbolic Interactionism was adopted as the theoretical framework, and Narrative Research as methodological., Results: two themes emerged: "Colic approach" and "Social support and care". Professional childhood colic management is based on diagnosis and drug interventions. For mothers, the child's suffering and impotence in the face of the disease stand out., Final Considerations: childhood colic is socially widespread because it is a physiological and self-limiting event. Mothers felt helpless in the face of childhood colic. Professionals felt the need to expand their care, with a view to achieving maternal suffering and alleviating it.

The genome versus experience dichotomy has dominated understanding of behavioral individuality. By contrast, the role of nonheritable noise during brain development in behavioral variation is understudied. Using Drosophila melanogaster , we demonstrate a link between stochastic variation in brain wiring and behavioral individuality. A visual system circuit called the dorsal cluster neurons (DCN) shows nonheritable, interindividual variation in right/left wiring asymmetry and controls object orientation in freely walking flies. We show that DCN wiring asymmetry instructs an individual's object responses: The greater the asymmetry, the better the individual orients toward a visual object. Silencing DCNs abolishes correlations between anatomy and behavior, whereas inducing DCN asymmetry suffices to improve object responses., (Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.)

Objectives: to know the meaning attributed by family members to the health safety of pediatric patients, with attention to the possibilities of their collaboration., Methods: this qualitative study was conducted with eighteen family members of children hospitalized in a pediatric unit, from January to July 2018. Symbolic Interactionism was used as a theoretical framework, and Inductive Content Analysis as method., Results: child hospitalization poses risks to possible incidents and adverse events. Participants and professionals are responsible for patient safety. Thus, their actions focus on error prevention. Therefore, they seek information and observe in a vigil way professional care in classic aspects of safety. They conceive essential and favoring safety the approach centered on children and family members. Final Considerations: family members recognized the chances of errors and care damage, identified themselves as support in minimizing damage and were in partnership with the professional, increasing chances of effecting safety.