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Auditory perception is traditionally conceived as the perception of sounds-a friend's voice, a clap of thunder, a minor chord. However, daily life also seems to present us with experiences characterized by the absence of sound-a moment of silence, a gap between thunderclaps, the hush after a musical performance. In these cases, do we positively hear silence? Or do we just fail to hear, and merely judge or infer that it is silent? This longstanding question remains controversial in both the philosophy and science of perception, with prominent theories holding that sounds are the only objects of auditory experience and thus that our encounter with silence is cognitive, not perceptual. However, this debate has largely remained theoretical, without a key empirical test. Here, we introduce an empirical approach to this theoretical dispute, presenting experimental evidence that silence can be genuinely perceived (not just cognitively inferred). We ask whether silences can "substitute" for sounds in event-based auditory illusions-empirical signatures of auditory event representation in which auditory events distort perceived duration. Seven experiments introduce three "silence illusions"-the one-silence-is-more illusion, silence-based warping, and the oddball-silence illusion-each adapted from a prominent perceptual illusion previously thought to arise only from sounds. Subjects were immersed in ambient noise interrupted by silences structurally identical to the sounds in the original illusions. In all cases, silences elicited temporal distortions perfectly analogous to the illusions produced by sounds. Our results suggest that silence is truly heard, not merely inferred, introducing a general approach for studying the perception of absence.
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Ilusões , Humanos , Ruído , Som , Percepção Auditiva , Audição , Estimulação Acústica/métodosRESUMO
Effectors play important roles in facilitating the infection of plant pathogenic fungi. However, the gene expression regulatory mechanism of effector genes, in particular at the post-transcriptional level, is largely unknown. In this study, we uncovered the post-transcriptional regulation of an effector gene VmSP1 by a miRNA-like RNA (Vm-milR16) facilitating the infection of the apple tree Valsa canker pathogen Valsa mali. Genetic and molecular biological assays indicated that the expression of VmSP1 could be suppressed by Vm-milR16-mediated mRNA cleavage in a sequence-specific manner. During V. mali infection, Vm-milR16 was downregulated, whereas VmSP1 was upregulated, which further indicated the regulation relationship. VmSP1 was further demonstrated to be a secreted protein and could suppress plant immunity. Deletion of VmSP1 did not affect the vegetative growth but significantly reduced the virulence of V. mali. Further study indicated that VmSP1 could interact with the transcription factor MdbHLH189 of apple. Transiently overexpression of MdbHLH189 enhanced host resistance to V. mali by enhancing the expression of apple defense-related genes, together with the increased callose deposition. Silencing of MdbHLH189 compromised host resistance to V. mali. Our findings uncovered the novel epigenetic regulation mechanism of a virulence-associated effector gene mediated by a fungal milRNA at the post-transcriptional level, and the results enriched the understanding of the function and action mechanism of effectors in tree pathogenic fungi.
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Malus , MicroRNAs , MicroRNAs/genética , MicroRNAs/metabolismo , Fatores de Transcrição/genética , Fatores de Transcrição/metabolismo , Epigênese Genética , Doenças das Plantas/genética , Doenças das Plantas/microbiologia , Malus/metabolismoRESUMO
P-element-induced wimpy testis-interacting RNAs (piRNAs), a class of small noncoding RNAs with about 24-32 nucleotides, often interact with PIWI proteins to form a piRNA/PIWI complex that could influence spermiogenesis, transposon silencing, epigenetic regulation, etc. PIWI proteins have a highly conserved function in a variety of species and are usually expressed in germ cells. However, increasing evidence has revealed the important role of the piRNA/PIWI complex in the occurrence and prognosis of various human diseases and suggests its potential application in the diagnosis and treatment of related diseases, becoming a prominent marker for these human diseases. Recent studies have confirmed that piRNA/PIWI complexes or piRNAs are abnormally expressed in some viral infections, effecting disease progression and viral replication. In this study, we reviewed the association between the piRNA/PIWI complex and several human disease-associated viruses, including human papillomavirus, human immunodeficiency virus, human rhinovirus, severe acute respiratory syndrome coronavirus 2, respiratory syncytial virus, and herpes simplex virus type 1.
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Proteínas Argonautas , RNA Interferente Pequeno , Viroses , RNA Interferente Pequeno/genética , RNA Interferente Pequeno/metabolismo , Humanos , Viroses/virologia , Viroses/genética , Proteínas Argonautas/genética , Proteínas Argonautas/metabolismo , Animais , Replicação Viral/genética , RNA de Interação com PiwiRESUMO
Growing evidence has proved that RNA editing enzyme ADAR1, responsible for detecting endogenous RNA species, was significantly associated with poor response or resistance to immune checkpoint blockade (ICB) therapy. Here, a genetically engineered nanovesicle (siAdar1-LNP@mPD1) was developed as an RNA interference nano-tool to overcome tumor resistance to ICB therapies. Small interfering RNA against ADAR1 (siAdar1) was packaged into a lipid nanoparticle (LNP), which was further coated with plasma membrane extracted from the genetically engineered cells overexpressing PD1. siAdar1-LNP@mPD1 could block the PD1/PDL1 immune inhibitory axis by presenting the PD1 protein on the coating membranes. Furthermore, siAdar1 could be effectively delivered into cancer cells by the designed nanovesicle to silence ADAR1 expression, resulting in an increased type I/II interferon (IFN-ß/γ) production and making the cancer cells more sensitive to secreted effector cytokines such as IFN-γ with significant cell growth arrest. These integrated functions confer siAdar1-LNP@mPD1 with robust and comprehensive antitumor immunity, as evidenced by significant tumor growth regression, abscopal tumor prevention, and effective suppression of lung metastasis, through a global remodeling of the tumor immune microenvironment. Overall, we provided a promising translatable strategy to simultaneously silence ADAR1 and block PDL1 immune checkpoint to boost robust antitumor immunity.
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Citocinas , Neoplasias Pulmonares , Humanos , Neoplasias Pulmonares/terapia , Interferon gama , Proliferação de Células , Microambiente Tumoral/genéticaRESUMO
AIMS: This work aims to analyse the current state of the professional identity of Chinese nurses; examine the relationship amongst regulatory focus, organizational silence and professional identity and determine how regulatory focus affects the relationship between professional identity and organizational silence. DESIGN: This study conducted a cross-sectional survey. METHODS: From June to August 2023, 420 nurses from six hospitals in Hunan Province, China, were selected through convenience sampling and surveyed by using a general information questionnaire, the regulatory focus scale, the organizational silence scale and the professional identity scale. The relationship amongst the regulatory focus, organizational silence and professional identity of nurses was examined by utilizing SPSS 25.0 and the mediating role of regulatory focus between organizational silence and nurses' professional identity was examined by applying AMOS 24.0. RESULTS: Nurses had a moderate level of professional identity. Professional identity was positively correlated with regulatory focus and negatively correlated with organizational silence. Regulatory focus was negatively correlated with organizational silence. Mediation effect studies revealed that organizational silence and professional identity were partially mediated by regulatory focus. CONCLUSION: In accordance with research showing that nurses' organizational silence can indirectly affect professional identity via regulatory focus, clinical nursing managers should concentrate on the interaction amongst these three variables to strengthen professional identity. IMPACT: The results of this study serve as a reminder to nurses to select a preventive or promotive focus based on their career objectives and to effectively express their views to enhance their professional identity. This also reminds nursing managers assess nurse-led regulatory focus, identify their underlying qualities and understand their professional aspirations and career orientation, create a good atmosphere for advice and encourage nurses to express their views, so as to improve nurses 'professional identity. PATIENT OR PUBLIC CONTRIBUTION: No patient or public contribution.
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Recursos Humanos de Enfermagem Hospitalar , Identificação Social , Humanos , Estudos Transversais , Adulto , Feminino , Masculino , China , Recursos Humanos de Enfermagem Hospitalar/psicologia , Inquéritos e Questionários , Pessoa de Meia-Idade , Atitude do Pessoal de Saúde , Cultura Organizacional , Adulto JovemRESUMO
Trauma communication in refugee families is increasingly recognized as an important relational dynamic influencing psychosocial well-being, yet studies exploring interactional dynamics and meaning making at play in intra-family trauma communication remain scarce. This article reports on a qualitative study with Kurdish refugee families including parents (N = 10) and children (N = 17) resettled in Belgium, aiming to explore practices on trauma communication within refugee family relationships. In a multiple-phased qualitative design, semi-structured family interviews and participant observation administered in the homes of the participant families are followed by parental interviews involving a tape-assisted recall procedure to investigate observed intergenerational trauma communication and parent-child interactions. Data analysis shows parents and children seldom explicitly talked about the families' lived experiences of trauma. This silence was especially related to parental wishes to avoid their children's future involvement in violence. However, findings also indicate how the intra-family transmission of memories of collective violence occurs in many subtle ways. Four modes of indirect trauma communication could be distinguished: (1) focusing on the repetition of violence in the present; (2) transmission of the collective trauma history; (3) family storytelling; and (4) interaction with meaningful objects of the past. These findings shed light onto the interwoven nature of personal-familial and collective trauma and loss and illuminate the meanings of silence and disclosure in the context of the Kurdish diaspora. In the final section, we discuss our findings and outline its clinical implications for family therapeutic practices in refugee trauma care.
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AIMS: This study investigated the status and influencing factors of organizational silence among 624 nurses in general hospitals in eastern coastal cities of China. METHODS: This study followed STROBE guidelines. During the period from January to April 2024, the researchers investigated 624 clinical in-service nurses in terms of general information, employee silence behavior, work engagement, and peer support, and analyzed the related factors affecting nurses' organizational silence. RESULTS: The total average score of nurses' organizational silence was (33.88 ± 6.88), and the total score of work engagement was (69.23 ± 10.76); The total score of the colleague support scale was (90.02 ± 13.72), which was at the medium level. Univariate analysis showed that the scores of organizational silence of 610 nurses had statistical differences in departments, employment methods and professional titles (P < 0.05); Pearson correlation analysis showed that nurses' work engagement (r=-0.530, P < 0.05), perceived colleague support a scale (r=-0.530, P < 0.05), colleague support B scale (r=-0.363, P < 0.05) were negatively correlated with organizational silence; Multiple linear regression analysis showed that department (ß'value = 0.256, P = 0.001), employment mode (ß'value = 0.115, P = 0.001), professional title (ß'value = 0.741, P = 0.023), working years (ß'value = 1.1110, P = 0.000), work engagement (ß'value6.182, P = 0.000), colleague support scale A (ß'value = 0.198, P = 0.003), and scale B (ß'value = 0.485, P = 0.001) were the main influencing factors of nurses' organizational silence behavior. CONCLUSIONS: In this study, nurses' organizational silence is at the medium level, and nursing workers with low outpatient service, contract system, professional title and working years, less work investment and poor support from colleagues are prone to silence behavior.
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OBJECTIVE: To consider the contribution of non-clinical factors in the rising rate of mental health presentations and explore the associated silence within the psychiatric profession. CONCLUSION: Medicalisation, concept creep and group think, alongside societal demand and expectations, have collectively contributed toward a distorted view of mental health and illness. Equitable service provision has been hindered by the silence of important perspectives.
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Transtornos Mentais , Psiquiatria , Humanos , Transtornos Mentais/terapia , Serviços de Saúde Mental/organização & administração , MedicalizaçãoRESUMO
AIM: This study aims to assess the relationship between workplace ostracism and the procrastination behavior of nurses, as well as examine the effect of organizational silence on this relationship. BACKGROUND: Controlling workplace ostracism and eradicating time wasters, especially procrastination behavior among nurses, are key strategies that add value to organizational effectiveness. In addition, remaining silent about significant issues facing nurses is a devastating approach to the success of both healthcare organizations and the nursing profession. METHOD: A cross-sectional descriptive correlational exploratory research design was used to conduct the study. Data were collected from 352 nurses recruited from three large university hospitals in Alexandria, Egypt. Four instruments, namely, the Workplace Ostracism Questionnaire, the Organizational Silence Scale, the Active Procrastination Scale, and the Unintentional Procrastination Scale, were used. Structural equation modeling was used to test the hypothesized relationships among the variables. RESULTS: The findings demonstrated a significant positive and moderate association between workplace ostracism and both active and passive procrastination behaviors among nurses. Moreover, there was a strong positive and significant correlation between organizational silence and workplace ostracism. The results of mediation revealed that the indirect effect of workplace ostracism on both active and passive procrastination behavior through organizational silence was statistically significant, suggesting that organizational silence partially mediated this relationship. CONCLUSION: The study highlighted the ongoing challenges posed by toxic workplace issues, such as organizational ostracism and silence, as significant factors contributing to nurses' procrastination behaviors. Not only do these factors directly impact nurses' productivity, but they also interact to exacerbate negative outcomes in nursing care. Addressing these toxic dynamics is critical to improving nurse performance and ensuring quality care in healthcare settings. IMPLICATIONS FOR NURSING AND HEALTH POLICY: This study offers new insights for navigating toxicity and upgrading nursing productivity in healthcare organizations through fostering a more inclusive and communicative work environment. Promoting team cohesion and ensuring that all staff members feel valued and included can reduce feelings of isolation that may lead to procrastination. Also, creating safe spaces for nurses to voice concerns without fear of reprisal could significantly diminish passive procrastination, which ultimately enhances overall patient care quality and organizational efficiency.
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Segmental bone defects and nonunion of fractures caused by trauma, infection, tumor or systemic diseases with limited osteogenesis and prolonged bone healing cycles are challenging issues in orthopedic clinical practice. Therefore, identifying regulatory factors for bone tissue regeneration and metabolism is crucial for accelerating bone repair and reconstructing defective areas. Silence information regulator 6 (SIRT6), functioning as a deacetylase and nucleotide transferase, is extensively involved in the regulation of differentiation, apoptosis, metabolism, and inflammation in bone cells including osteoblasts and osteoclasts, and is considered to be an important factor in regulating bone metabolism. SIRT6 forms a complex with B lymphocyte-induced maturation protein 1 (Blimp1), down-regulates the expression of the nuclear factor κB (NF-κB) pathway, and promotes the expression of the ERα-FasL axis signal to inhibit osteoclast formation and maturation differentiation, thereby hindering bone resorption and increasing bone mass. In addition, SIRT6 activates the Akt-mTOR pathway to regulate the autophagy level and osteogenesis of bone marrow mesenchymal stem cells, inhibits glycolysis and reactive oxygen production in osteoblasts, promotes osteoblast differentiation through the CREB/CCN1/COX2 pathway and the bone morphogenetic protein (BMP) signaling pathway, enhances bone formation, and accelerates bone regeneration and repair of skeletal tissue. This article provides an overview of the research progress on SIRT6 in the pathophysiology of bone regeneration, revealing its potential as a novel therapeutic target for bone tissue repair to alleviate the progression of skeletal pathological diseases.
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Regeneração Óssea , Osteogênese , Sirtuínas , Humanos , Sirtuínas/metabolismo , Osteoblastos , Animais , Diferenciação Celular , Transdução de Sinais , Osteoclastos , NF-kappa B/metabolismoRESUMO
In many Western jurisdictions, criminal suspects undergoing police interrogations have the right to remain silent. In this experiment, we examined the effects of remaining silent during police questioning on laypersons' perceptions of a suspect. Participants (N = 126) read one of three mock-interview transcripts (i.e. admission, denial or silence) and indicated the extent to which they agreed or disagreed that a male suspect in a missing person case was guilty, cooperative, trustworthy and rational. Participants expressed stronger agreement that the suspect was guilty when he admitted guilt than when he denied involvement or remained silent. When the suspect remained silent, participants viewed the suspect as less cooperative than when the suspect denied or admitted guilt and as less rational than when the suspect denied committing the crime. Our findings provide some support for the notion that remaining silent during police questioning may be viewed unfavourably by external observers.
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The inclusion of the term "incest" in the Penal Code is extremely recent. The study of the silence of the law and the debates that led to its introduction reflect the evolution of our society. What is the current situation for magistrates, in terms of the texts currently in force? How can judicial practices benefit from interdisciplinary scientific knowledge to meet the challenges of proof, protection and reparation?
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Incesto , Criança , Humanos , França , Incesto/legislação & jurisprudênciaRESUMO
Online phenomena like echo chambers and polarization are believed to be driven by humans' penchant to selectively expose themselves to attitudinally congenial content. However, if like-minded content were the only predictor of online behavior, heated debate and flaming on the Internet would hardly occur. Research has overlooked how online behavior changes when people are given an opportunity to reply to dissenters. Three experiments (total N = 320; convenience student samples from Germany) and an internal meta-analysis show that in a discussion-forum setting where participants can reply to earlier comments larger cognitive conflict between participant attitude and comment attitude predicts higher likelihood to respond (uncongeniality bias). When the discussion climate was friendly (vs. oppositional) to the views of participants, the uncongeniality bias was more pronounced and was also associated with attitude polarization. These results suggest that belief polarization on social media may not only be driven by congeniality but also by conflict.
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Atitude , Mídias Sociais , Humanos , Emoções , Viés , Alemanha , InternetRESUMO
OBJECTIVE: To explore the views of female genital mutilation (FGM) survivors, men and healthcare professionals (HCPs) on the timing of deinfibulation surgery and NHS service provision. DESIGN: Qualitative study informed by the sound of silence framework. SETTING: Survivors and men were recruited from three FGM prevalent areas of England. HCPs and stakeholders were from across the UK. SAMPLE: Forty-four survivors, 13 men and 44 HCPs. Ten participants at two community workshops and 30 stakeholders at a national workshop. METHODS: Hybrid framework analysis of 101 interviews and three workshops. RESULTS: There was no consensus across groups on the optimal timing of deinfibulation for survivors who wished to be deinfibulated. Within group, survivors expressed a preference for deinfibulation pre-pregnancy and HCPs antenatal deinfibulation. There was no consensus for men. Participants reported that deinfibulation should take place in a hospital setting and be undertaken by a suitable HCP. Decision making around deinfibulation was complex but for those who underwent surgery it helped to mitigate FGM impacts. Although there were examples of good practice, in general, FGM service provision was suboptimal. CONCLUSION: Deinfibulation services need to be widely advertised. Information should highlight that the procedure can be carried out at different time points, according to preference, and in a hospital by suitable HCPs. Future services should ideally be developed with survivors, to ensure that they are clinically and culturally appropriate. Guidelines would benefit from being updated to reflect the needs of survivors and to ensure consistency in provision.
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Circuncisão Feminina , Masculino , Gravidez , Feminino , Humanos , Inglaterra , Pesquisa Qualitativa , Pessoal de SaúdeRESUMO
KEY MESSAGE: We establish a fast and efficient transient silencing system that facilitates functional studies of some genes, whose knockout leads to plant lethality. In plants, the generation of loss-of-function mutants is crucial for studying gene function. Artificial microRNA (AmiRNA) technology is a more targeted and effective tool for gene silencing. Gold nanoparticles (AuNPs) can bind nucleic acids and deliver them into animal cells. Here, AuNPs are used in combination with AmiRNA technology in plants. We found that AmiRNA-autophagy-related proteins (ATG6) can be delivered to cells by AuNPs to achieve the effect of ATG6 silencing. It is worth noting that on the 10th day there is still a silencing effect. Similar to the atg5 lines, silencing of ATG6 significantly reduced plant resistance to Pseudomonas syringae pv.maculicola (Psm) ES4326/AvrRpt2. Interestingly, ATG6 silencing and ATG5 mutation in NPR1-GFP (nonexpressor of pathogenesis-related genes) lines significantly reduced plant resistance to Psm ES4326/AvrRpt2, suggesting that autophagy is also involved in NPR1-regulated plant immune responses. In summary, we establish a fast and efficient transient silencing system that facilitates functional studies of some genes, whose knockout leads to plant lethality.
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Proteínas de Arabidopsis , Arabidopsis , Nanopartículas Metálicas , MicroRNAs , Animais , Arabidopsis/metabolismo , Ouro , MicroRNAs/genética , Proteínas de Arabidopsis/genética , Proteínas de Arabidopsis/metabolismoRESUMO
Unmanned Aerial Vehicles (UAVs) can cooperate through formations to perform tasks. Wireless communication allows UAVs to exchange information, but for the situations requiring high security, electromagnetic silence is needed to avoid potential threats. The passive UAV formation maintenance strategies can fulfill the requirement of electromagnetic silence at the cost of heavy real-time computing and precise locations of UAVs. To pursue high real-time performance without the localization of UAVs, this paper proposes a scalable distributed control algorithm for bearing-only passive UAV formation maintenance. By minimizing necessary communication, pure angle information is applied to maintain UAV formations through distributed control, without the knowledge of the UAVs' precise locations. The convergency of the proposed algorithm is proven strictly and the converging radius is derived. Through simulation, the proposed algorithm is proven to be suitable for a general case and demonstrates fast convergence speed, strong anti-interference capability, and high scalability.
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The inflammatory dysfunction of microglia from excess amyloid-ß peptide (Aß) disposal is an overlooked but pathogenic event in Alzheimer's disease (AD). Here, we exploit a native high-density lipoprotein (HDL)-inspired nanoscavenger (pHDL/Cur-siBACE1) that combines the trinity of phosphatidic acid-functionalized HDL (pHDL), curcumin (Cur), and ß-site APP cleavage enzyme 1 targeted siRNA (siBACE1) to modulate microglial dysfunction. By mimicking the natural lipoprotein transport route, pHDL can penetrate the blood-brain barrier and sequentially target Aß plaque, where Aß catabolism is accelerated without microglial dysfunction. The benefit results are from a three-pronged modulation strategy, including promoted Aß clearance with an antibody-like Aß binding affinity, normalized microglial dysfunction by blocking the NF-κB pathway, and reduced Aß production by gene silence (44%). After treatment, the memory deficit and neuroinflammation of APPswe/PSEN 1dE9 mice are reversed. Collectively, this study highlights the double-edged sword role of microglia and provides a promising tactic for modulating microglial dysfunction in AD treatment.
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Doença de Alzheimer , Curcumina , Doença de Alzheimer/tratamento farmacológico , Doença de Alzheimer/metabolismo , Animais , Modelos Animais de Doenças , Lipoproteínas HDL/metabolismo , Camundongos , Camundongos Transgênicos , Microglia/metabolismo , Doenças NeuroinflamatóriasRESUMO
BACKGROUND: A theological perspective on dealing with crises that focuses on modes of endurance and gestalt, is supported by interdisciplinary resilience research. OBJECTIVE: How can silence contribute to a productive coping with crises and pain? MATERIAL AND METHODS: Texts and practices of the Christian tradition are discussed with respect to their ways of dealing with critical and painful situations, namely a) the Psalm texts of the Old Testament, which are examined by means of exegetical methods for historical and cultural aspects of meaning and b) the practice of silence in the prayers of the Taizé community, which are examined from a narrative hermeneutical perspective. RESULTS: By understanding silence as an ambiguous and ambivalent phenomenon, it can contribute to a productive way of dealing with pain that enables perception, confrontation and acceptance. It is crucial not to regard the silence of a sufferer as a mere endurance, but also to have an eye on the creative potentials. Cultural and religious narratives and practices can help to locate oneself in a "space of silence" in such a way that a resilient way of dealing with experiences of pain becomes possible. CONCLUSION: In order for silence to promote resilience, it is necessary to keep an eye on productive as well as destructive processes of silence as an ambivalent phenomenon: These processes occur in an uncontrollable way and are shaped by implicit normative assumptions. Silence can be experienced as loneliness, isolation and the loss of quality of life, or silence can become a place of encounter, of arrival, of security, and in prayer of trust in God.
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Dor , Qualidade de Vida , Humanos , Adaptação PsicológicaRESUMO
CXCL14 is one of the most evolutionarily conserved members of the chemokine family and is constitutionally expressed in multiple organs, suggesting that it is involved in the homeostasis maintenance of the system. CXCL14 is highly expressed in colon epithelial cells and shows obvious gene silencing in clinical colon cancer samples, suggesting that its silencing is related to the immune escape of cancer cells. In this paper, we analyzed the expression profiles of multiple human clinical colon cancer datasets and mouse colon cancer models to reveal the variation trend of CXCL14 expression during colitis, colon polyps, primary colon cancer, and liver metastases. The relationship between CXCL14 gene silencing and promoter hypermethylation was revealed through the colorectal carcinoma methylation database. The results suggest that CXCL14 is a tumor suppressor gene in colorectal carcinoma which is activated first and then silenced during the process of tumor occurrence and deterioration. Promoter hypermethylation is the main cause of CXCL14 silencing. The methylation level of CXCL14 is correlated with the anatomic site of tumor occurrence, positively correlated with patient age, and associated with prognosis. Reversing the hypermethylation of CXCL14 may be an epigenetic therapy for colon cancer.
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Neoplasias do Colo , Neoplasias Colorretais , Humanos , Animais , Camundongos , Inativação Gênica , Metilação de DNA , Neoplasias do Colo/genética , Neoplasias Colorretais/patologia , Mineração de Dados , Regulação Neoplásica da Expressão Gênica , Linhagem Celular Tumoral , Quimiocinas CXC/genéticaRESUMO
AIMS: To assess toxic leadership and organizational performance among nurses of a University Hospital, and explore the mediating effect of nurses 'silence. BACKGROUND: Toxic Leadership behaviours are hurtful to feelings, leading to emotive fatigue and nurses silence within the legislative framework. In fact, it is very harmful to all organizations. However, little emphasis has been paid to research on the mediating mechanism and border factors of their connection. METHODS: A cross-sectional design was applied. Data was collected from 750 nurses over the course of three months. The researchers employed structured equation modeling [SEM] to investigate the role of nurses' silence in mediating the association between toxic leadership and organizational performance. RESULTS: The toxic leadership level and Organisational performance level were both high. In addition to, the nurses' silence level was moderate. The SEM revealed that toxic Leadership accounted for the prediction of 65% of the variance of nurses' silence and 87% of the variance of organizational performance. Also, nurses silence as a mediating factor accounted for 73% of the variance of organizational performance. CONCLUSIONS: This study emphasized on the importance of creating a work environment that encourages and promotes open communication, as well as eliminating toxic leadership behaviours from the organizational culture among nurses as it effects on the organizational performance.