The Implicit Component of Moral Disengagement: Applying the Relational Responding Task to Investigate Its Relationship With Cheating Behavior.

This article aims to conceptualize, for the first time, an implicit form of moral disengagement and investigate its role in relation to cheating behavior. In line with the implicit social-cognition models, we argue that the implicit moral disengagement would represent an unintentional, automatic, and less accessible form of the mechanisms bypassing the moral self-regulatory system. We anticipate that in situations implying on-the-spot decisions and where individuals might suffer no consequences for the misconduct, the implicit moral disengagement would predict the actual behavior while the explicit moral disengagement would predict self-reported conduct. The results of three empirical studies provide support for the theorization of an implicit moral disengagement and its assessment through a newly developed implicit measurement procedure using the relational responding task. Results of the structural equation models, including both implicit and explicit moral disengagement, demonstrated that only the implicit one was associated with the actual misconduct.

The relationship between nurse managers' leadership style and patients' perception of the quality of the care provided by nurses: Cross sectional survey.

BACKGROUND: In healthcare systems, human resources play a strategic role that has a significant impact on the whole caring process. When the wellbeing of professionals is low their performance decreases, counterproductive work behaviours may became more likely, and as a result the quality of care is compromised. Studies have shown that leadership style is particularly relevant in relation to the quality of work environments in healthcare organizations. OBJECTIVE: The main purpose of this study is to test a model that investigates the relationships between nurse managers' leadership style and patients' perception of the quality of the care provided by the nurses, through the mediation of the quality of the working environment (in terms of burnout, interpersonal strain and counterproductive work behaviour). DESIGN: A multi-centre cross-sectional study was conducted. SETTING: The study was conducted in five hospitals located two in the north, two in the centre and one in the south of Italy. PARTICIPANTS: Participants were 479 registered nurses (working as staff nurses, while head nurses and nurse managers were excluded) and 829 patients aged 18 years or older, able to read and write Italian and hospitalized for at least 3 days. Severely ill or mentally disabled patients who were not able to fill in the questionnaire were excluded. METHODS: The data were collected through two different questionnaires, one for the nurses and one for the patients. A multilevel analysis was conducted to examine the hypothesized model. RESULTS: Results confirmed the hypothesis that, when nurses were satisfied with leadership, they felt less burned-out and strained in interpersonal relationships, they engaged less in misbehaviour, and, in turn, patients were more satisfied with the quality of the care provided by the nurses. CONCLUSIONS: The results of this study showed that the characteristics of the organizational context, the leadership, and the behaviours of nurses, influenced patients' perceptions of nurses' care. Therefore, managers of healthcare services should take these results into account seriously in order to improve the quality of care provided to patients.

Development and validation of the Nursing Profession Self-Efficacy Scale.

AIM: This study describes the development and validation of the Nursing Profession Self-Efficacy Scale. BACKGROUND: Self-efficacy can be useful in predicting performance, job satisfaction or well-being. In the nursing field, there is a shortage of studies on self-efficacy with regard to nurses' global confidence in coping ability across a range of everyday, challenging work situations. METHODS: To define the theoretical framework of nursing professional self-efficacy, two focus groups and a literature review were performed. An empirical study was then conducted to test validity and reliability. Face and content validity, construct validity, concurrent validity, internal consistency and test-retest reliability were examined. The content validity index was evaluated by 12 experts who suggested deleting 11 redundant items. The final developed tool was tested for construct analysis using a cross-validation approach, randomly splitting the overall sample of 917 nurses in two sub-groups. FINDINGS: The construct validity indicated two dimensions. The face and content validity were adequate. Test-retest reliability displayed a good stability, and internal consistency (Cronbach's α) was acceptable. Moreover, concurrent validity using the Generalized Self-Efficacy Scale was in line with the theoretical framework. CONCLUSION: The scale showed evidence of validity and reliability. The major limitation is the strong influence of the Italian context in the tool development. IMPLICATIONS FOR NURSING AND HEALTH POLICY: The Nursing Profession Self-Efficacy Scale could be a fruitful tool that facilitates the application of theories (i.e. social-cognitive theory) in the nursing field and even development of interventions. Furthermore, a measurement of self-efficacy could be used to predict nursing clinical performance.

Motility in the isolated mouse colon: migrating motor complexes, myoelectric complexes and pressure waves.

This study has used mechanical, together with pressure/volume recordings or electrophysiological recordings, to investigate the spontaneous activity in isolated preparations of mouse colon. In the former preparations, when not distended with fluid, spontaneous colonic migrating motor complexes (CMMCs) were observed using isotonic transducers. When the colons were distended with fluid, CMMCs continued at an increased frequency and in addition were associated temporally, with rises in intraluminal pressure and pulses of distally ejected fluid. 5-Hydroxytryptamine (1 micro mol L-1) or NG-nitro-l-arginine (100 micro mol L-1) increased the frequency of propulsive activity and this activity was abolished by hexamethonium (500 micro mol L-1). In a second preparation, myoelectric complexes recorded from circular muscle cells in colons using intracellular microelectrodes, were found to correlate in frequency and phase with CMMCs. The experiments indicate that CMMCs are intimately related to pressure waves in the fluid-filled viscus and the muscle membrane potential changes that have been recorded during myoelectric complexes are likely to be analogous to those occurring during fluid-filled propulsive activity.

Neural integrity is essential for the propagation of colonic migrating motor complexes in the mouse.

The mechanisms that underlie the propagation of contractions along the colon are uncertain. We have examined whether spontaneous colonic migrating motor complexes (CMMCs) migrate through a region of muscle paralysis, or through a region where neural transmission was disrupted in the isolated mouse colon. Mouse colon was mounted in a separately perfused three-compartment organ bath and recordings of circular muscle tension were made. Drug application was restricted to the middle compartment. Application of nifedipine (1 micromol L(-1)), an l-type calcium channel antagonist, reduced the contraction amplitude by approximately 94%, without affecting the form of contractions in the proximal and distal compartments. Moreover, CMMCs appeared to remain temporally related in all compartments. In contrast, interruption of neural transmission in the middle compartment by either tetrodotoxin (1.6 micromol L(-1)), hexamethonium (500 micromol L(-1)) or a low-calcium, high-magnesium solution abolished CMMCs in this compartment; contractions recorded in the proximal and distal compartments became slower in frequency and were no longer synchronized. The experiments suggest that there may be more than one 'pacemaker' generating spontaneous CMMCs and that CMMCs can migrate through a region where there is minimal tension generation, but not through a region where neural integrity has been compromised.

Ongoing nicotinic and non-nicotinic inputs to inhibitory neurons in the mouse colon.

1. Intracellular microelectrodes were used to record spontaneous and evoked inhibitory junction potentials (IJP) from the circular muscle layer of the mid-distal region of the mouse isolated colon in the presence of nifedipine (1 micromol/L) and hyoscine (1 micromol/L). 2. The length of the tissue preparation (> 1 cm) or the presence of the mucosa had no effect on the frequency of spontaneous IJP. 3. Hexamethonium (500 micromol/L) reduced the frequency of spontaneous IJP to approximately 70% of the control frequency, whereas D-tubocurarine (280 micromol/L) reduced the frequency to approximately 17% of control. Apamin (250 nmol/L) abolished all spontaneous IJP activity. 4. The greater inhibition of spontaneous IJP in the presence of D-tubocurarine compared with hexamethonium is discussed as a possible 'apamin-like' effect. 5. Although electrically evoked IJP (single pulse at 15 V, 0.6 msec) were not significantly affected by hexamethonium, D-tubocurarine and apamin reduced the amplitude of evoked IJP to approximately 65 and 50% of control, respectively. 6. These results suggest that the properties of spontaneous IJP cannot be inferred by a study of evoked IJP alone.

Chronotropic action of 5-hydroxytryptamine (5-HT) on colonic migrating motor complexes (CMMCs) in the isolated mouse colon.

The effects of 5-hydroxytryptamine (5-HT) and related drugs on colonic migrating motor complexes (CMMCs) were evaluated in isolated colons from the heterozygotes of pie-bald lethal mice. 5-HT produced a dose-related increase in the frequency of CMMCs without any change in the amplitude or duration of the CMMC contractions themselves. The 5-HT(2) agonist, alpha-methyl 5-HT, (100 nM-1 microM) increased the frequency of CMMCs whilst the 5-HT(3) agonist, 2-methyl 5-HT, did so at 10 microM. The 5-HT(4) agonist, 5-methoxy dimethyl tryptamine oxalate did not alter the frequency of CMMCs in the concentration range 1 nM-10 microM. The 5-HT(3) receptor antagonist, ondansetron, increased the interval between CMMCs in the concentration range 100 nM-1 microM, whilst the 5-HT(1) receptor antagonist, methiothepin, the 5-HT(2) receptor antagonist, cyproheptadine and the 5-HT(4) receptor antagonist, SDZ 205 557, had no significant effects on the interval between CMMCs in the concentration range 1 nM-10 microM. The effects of 5-HT did not appear to be altered by the presence of ondansetron (1 microM) or cyproheptadine (1 microM). However, in the presence of ondansetron (1 microM), the further addition of cyproheptadine (1 microM) effectively abolished CMMCs. Furthermore, in the combined presence of these antagonists the effects of 5-HT were severely diminished. It is suggested that the frequency of CMMCs may be under the influence of endogenously released 5-HT in this preparation

Second-, minute- and hour-metronomes of intestinal pacemakers.

1. Movements of the gastrointestinal tract are required for the digestion of food and the expulsion of waste products. 2. The present paper will discuss the nature of electrical rhythms underlying some intestinal motility patterns. 3. The rhythms are generated by pacemakers with cycle rates appropriate to controlling individual contractions, motor patternings or switching between different motor programmes. 4. Electrical rhythms are discussed with periods of the order of seconds, minutes and hours. 5. Particular discussion is centred on rhythms recorded from the small and large intestine of the mouse.

Colonic migrating motor complexes (CMMCs) in the isolated mouse colon.

Spontaneous contractions were recorded from the circular muscle layer at three sites along the isolated mouse colon. The interval between contractions was approximately 4.5 min. The mean duration of the contractions ranged from 26 sec in the distal colon to 45 sec in the proximal colon. Contractions migrating more than half the length of the colon were termed colonic migrating motor complexes (CMMCs). Over 90% of tissues demonstrated migration predominantly in an aboral direction. Hyoscine (10(-6) M) decreased the amplitude of the CMMCs by at least 40% but had no significant effect on the interval or duration of the CMMCs. Nifedipine (10(-6) M) significantly decreased the amplitude of the CMMCs by 95% but did not alter the duration or the interval between the CMMCs. Hexamethonium (5 x 10(-4) M) and tetrodotoxin (TTX; 2 x 10(-6) M) abolished all CMMC activity. TTX increased the resting tone of the preparations. Nitro-L-arginine (10(-4) M) increased the resting tone of the preparations and significantly decreased the interval between the CMMCs by approximately 80% but had no significant effect on the duration of the CMMCs. The results suggest CMMCs migrate predominantly in an aboral direction and are neurogenic in origin. Nitric oxide may be involved in maintaining inhibition of the muscle between CMMCs.