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PubMed2004

Annotation: children's relationships with their non-resident fathers.

BACKGROUND: The frequency of parental separation means that increasing numbers of children have fathers who live in different households from mother-and-child; the significance of contact and relationships between children and their non-resident fathers for children's adjustment is receiving growing attention. Lessons from this research are considered. METHODS: Recent meta-analyses and overviews of research, and key research projects, are discussed. Findings related to contact and relationship quality are the main focus of the annotation. RESULTS: Economic support from non-resident fathers is related to children's well-being, and continues to be a key factor. Findings on contact are more mixed, especially from early studies; the effect size of associations between contact and positive child outcome has increased in recent research. Quality of child-father relationships is consistently related to adjustment outcome. Authoritative parenting, involvement and feelings of closeness are of particular importance in relation to adjustment, and these links are related to the quality of mother-non-resident father relations, and the mother-child relationship. Age differences, patterns over time, and gender are discussed; the perspectives of fathers and the problems they face in maintaining authoritative relationships are considered. CONCLUSIONS: The significance of child-non-resident father relationships for children's and fathers' well-being is clear and merits further research; fruitful new directions for such research, within the framework of other family relationships, are outlined.

Adaptation, Psychological↗
PubMed2006

The role of the student-teacher relationship in the formation of physicians. The hidden curriculum as process.

Relationship-Centered Care acknowledges the central importance of relationships in medical care. In a similar fashion, relationships hold a central position in medical education, and are critical for achieving favorable learning outcomes. However, there is little empirical work in the medical literature that explores the development and meaning of relationships in medical education. In this essay, we explore the growing body of work on the culture of medical school, often termed the "hidden curriculum." We suggest that relationships are a critical mediating factor in the hidden curriculum. We explore evidence from the educational literature with respect to the student-teacher relationship, and the relevance that these studies hold for medical education. We conclude with suggestions for future research on student-teacher relationships in medical education settings.

Education, Medical↗
PubMed2005

Individual QT-R-R relationship: average stability over time does not rule out an individual residual variability: implication for the assessment of drug effect on the QT interval.

BACKGROUND: Universal QT correction formulae have been shown to under or overcorrect the QT interval duration. Individual QT-R-R modeling has been proposed as a preferable solution for heart rate correction of QT intervals. However, the QT-R-R relationship stability over time needs to be evaluated. METHODS: The present report is part of randomized, double-dummy, and placebo-controlled 4-way crossover phase 1 study (48 healthy volunteers). Each randomized period included a run-in placebo day followed the day after by drug administration, with moxifloxacin as a positive control for QT interval measurement. Digital Holter ECG data were analyzed using the "bin" approach. For each period, individual QT-R-R relationship were calculated using two different models (linear and parabolic log-log models). RESULTS: The mean intrasubject variability for the alpha coefficient of the linear modeling (SDintra = 0.011 +/- 0.005) reached 28.6 +/- 10.2%. When the parabolic model was considered, the SDintra was 0.026 +/- 0.009 for the alpha coefficient. The QT-R-R relationship variability was in part related to long-term RR changes (R2 = 30%, P < 0.05). However, no significant time effect (ANOVA) was evidenced for QT-R-R coefficients. Moxifloxacin significantly increased the alpha coefficient of the QT-R-R relationship from 0.07 +/- 0.018 to 0.085 +/- 0.019, P < 0.05 (linear model). CONCLUSIONS: The individual QT-R-R relationship shows a residual variability in part related to long-term autonomic changes. In addition, the QT-R-R relationship might be modulated by the drug tested. As a consequence, pretherapy QT-R-R relationship obtained in a given patient cannot be used as a fingerprint throughout a drug trial.

Aza Compounds↗
PubMed2002

Communication, conflict, and commitment: insights on the foundations of relationship success from a national survey.

The key relationship dynamics of communication, conflict, and commitment were investigated using data from a randomly sampled, nationwide phone survey of adults in married, engaged, and cohabiting relationships. Findings on communication and conflict generally replicated those of studies using more indepth or objective measurement strategies. Negative interaction between partners was negatively associated with numerous measures of relationship quality and positively correlated with divorce potential (thinking or talking about divorce). Withdrawal during conflict by either or both partners, though quite common, was associated with more negativity and less positive connection in relationships. The most frequently reported issue that couples argue about in first marriages was money, and in re-marriages it was conflict about children. Overall, how couples argue was more related to divorce potential than was what they argue about, although couples who argue most about money tended to have higher levels of negative communication and conflict than other couples. Further, while the male divorce potential was more strongly linked to levels of negative interaction, the female was more strongly linked to lower positive connection in the relationship. Consistent with the commitment literature, higher reported commitment was associated with less alternative monitoring, less feeling trapped in the relationship, and greater relationship satisfaction.

Adult↗
PubMed2006

Self-reported oral hygiene habits among institutionalised elderly and their relationship to the condition of oral tissues in Taubaté, Brazil.

OBJECTIVES: To record self-reported hygiene habits, examine the oral conditions of a sample group of institutionalised elderly, and examine possible relationships between these habits and conditions. DESIGN: Cross-sectional. SETTING: All the institutions for the elderly in Taubaté, Brazil. SUBJECTS: The entire population of these institutionalised elderly people (n = 553). INTERVENTION: The subjects were interviewed and underwent an oral examination. MAIN OUTCOME MEASURES: Oral hygiene habits, oral conditions and statistical relationships between habits and oral conditions were recorded. RESULTS: The average age of the subjects who knew their age (n = 364) was 74.9 years (+/-12.9), and 64.7% of the sample group were females. Denture-related stomatitis was found in 19.5%, impaired manual dexterity in 40%, dry mouth sensation in 36.3%, difficulty in performing oral hygiene in 20%, no oral hygiene-related orientation in 54.1%, no periodic oral examinations in 59.5%, and no tongue cleaning in 68.3% was declared. Among dentate subjects, 73.3% had periodontal disease, 54.7% had caries, 26% reported no toothbrushing, and 7.3% reported flossing. Of the denture wearers, 7% did not brush their dentures. Denture-related stomatitis showed a statistical relationship with impaired manual dexterity (p = 0.012) and an inverse statistical relationship with denture brushing frequency (p = 0.006). Periodontal disease showed an inverse relationship to flossing (p < 0.001) and tongue cleaning (p = 0.0026). Caries showed an inverse relationship with tooth-brushing (p = 0.043), flossing (0.022), proper oral hygiene orientation (p = 0.041) and periodical check-ups (p = 0.007). CONCLUSION: Oral hygiene practices in this sample group were found to be inadequate, and statistically significant relationships were verified between the lack of good oral hygiene practices and the deleterious oral conditions.

Age Factors↗
PubMed2000

Hierarchical relationship development: parents and children.

Child growth and development occur in hierarchical relationships. In our attempt to work more collaboratively, family therapists have neglected to work toward developing theory that guides our work in such hierarchical relationships. This article describes a method for understanding child and relational growth. It builds on Wynne's (1984) epigenetic model of relational systems by integrating his model of family development with Bateson's (1958) concepts of complementarity and symmetry. Wynne's model defines a process for understanding the stages of relationship development, and Bateson articulates the process of change within a relationship. Utilizing principles from both theorists, this paper proposes that parent-child complementary relationships mature through Wynne's developmental stages via symmetrical struggles, and that these symmetrical struggles are necessary ingredients in the development of the relationships as well as of the individuals within those relationships.

Communication↗
PubMed2005

Healthy practices, social relationships and dental perceptions among US dentate adults.

OBJECTIVE: This study explored and described the effects of healthy practices and social relationships on dental perceptions among U.S. dentate adults. METHODS: Guided by the Alameda County Study: Health and Ways of Living, weighted data from the Third National Health and Nutrition Examination Survey of 8,449 U.S. dentate adults aged 18-64 years were analyzed with SUDAAN 7.5.3. RESULTS: Healthy practices and social relationships showed protective effects against unfavorable dental perceptions after controlling for socio-demographic characteristics, dental access, and related clinical dental status. Besides healthy practices and social relationships, education, family income, having dental visit in the past 12 months, having dental decay, having defective tooth condition, and number of natural teeth helped explain unfavorable dental perceptions in the adjusted model. Compared with persons who had high social relationships and high healthy practices, those who had low social relationships with very low, low and medium healthy practices were about five, times (OR=5.07; 99% CI=3.24, 7.91), almost four times (OR=3.61; 99% CI=2.22, 5.87), and two times (OR=2.24; 99% CI=1.37, 3.67) more likely, respectively, to have unfavorable dental perceptions. In the adjusted model, these odds ratios decreased to three (OR=3.30; 99% CI=2.01, 5.41), two (OR=2.06; 99% CI=1.15, 3.69) and non-significant difference, consecutively. CONCLUSIONS: Influence of healthy practices and social relationships on dental health may encourage dental health professions to participate in general health behavior modifications and social actions to foster social relationships, in addition to preventive dental care.

Adolescent↗
PubMed1975

Relationship between various bacterial populations and coprostanol and cholesterol.

A year-long study was conducted at three different locations in Canada to evaluate the relationship between fecal sterols and bacterial populations. A statistical model was constructed to study the following: (i) seasonal variations in the sterols and bacterial parameters; (ii) the differences between morning and afternoon samples; (iii) the relationship between the two sterols (coprostanol and cholesterol) as well as their relationship to the bacterial parameters; and (iv) the geographical differences between the three sampling sites. Application of the model to the data indicated that (i) the relationship in receiving waters between coprostanol and cholesterol was found to be highly significant; (ii) at two sampling sites the relationship between fecal sterols and fecal coliforms was positively significant at the 5% level; (iii) at one sampling site there was a positive relationship between fecal sterols and the fecal coliform - fecal streptococcus ratio; and (iv) in a.m. vs. p.m. samples significant differences were noted in coliform, fecal coliform, and fecal streptococcus densities while no significant differences were found in heterotroph densities and coprostanol and cholesterol levels. Raw and treated sewage from four sewage-treatment plants were also studied to provide baseline control data. Data support the conclusion that while no consistent relationship exists between bacterial parameters and fecal sterols, fecal sterols could be considered as unequivocal indicators of the presence of fecal material in water.

Canada↗
PubMed1986

Concealed positive force-frequency relationships in rat and mouse cardiac muscle revealed by ryanodine.

Increases in stimulation frequency between 0.3 and 2 Hz decrease developed tension in rat, seemingly inconsistent with the explanation that an elevation of intracellular Na+-ion concentration is responsible for the positive force-frequency relationships observed in most species. Thus the force-frequency relationships were reevaluated in isolated atrial muscle of rat and mouse heart that show negative relationships, comparing them with ferret and guinea pig that show positive relationships. Ryanodine (2 nM, 45-min exposure) markedly reduced potentiated postrest contractions in all four species and caused a marked negative inotropic effect especially at low stimulation frequencies in rat and mouse, a moderate effect in ferret, but only a modest effect in guinea pig. In the presence of ryanodine, all four species showed positive force-frequency relationships. These results indicate that activator calcium in rat, mouse, and ferret cardiac muscle has a large ryanodine-sensitive component that shows a negative force-frequency relationship, masking a component for positive force-frequency relationships that exists in all species.

Alkaloids↗
PubMed1989

Effect of diltiazem on aortic pressure-diameter relationship in dogs.

To study the effects of diltiazem (Dz) on aortic (Ao) pressure-diameter (P-D) relationships, the external diameter (D) of the thoracic Ao (sonomicrometry) and Ao pressure (AoP, micromanometer) were simultaneously measured in 10 anesthetized dogs. The P-D relationship from 80 ms after the dicrotic notch of AoP (t80) to 20 ms after the peak of the next R wave on the electrocardiogram (ECG) (t20) was plotted at 30-ms intervals. To depict the P-D relationship in a wide range of AoP, Ao occlusion immediately after the release of inferior vena caval (IVC) occlusion was performed both before and after a Dz (0.03 mg.kg-1.min-1, over 10 min) infusion. The P-D relationship so obtained was a sigmoid curve under both conditions and was reasonably described by a cubic curve (P = aD3 + bD2 + cD + d, where a, b, c, and d are constants and r greater than 0.99). The first derivative of cubic regression equation (dP/dD) value of the cubic curve was used as an index of Ao stiffness. In all dogs, the dP/dD-D relationship, which was parabolic, was similar to the delta P/delta D-D relationship measured from the actual P-D relationship (delta P/delta D is the ratio of the change in AoP to that in AoD), suggesting that it corresponded to a cubic curve.(ABSTRACT TRUNCATED AT 250 WORDS)

Animals↗
PubMed1993

Effect of inotropic stimulation on the negative force-frequency relationship in the failing human heart.

BACKGROUND: In severe human heart failure, an increase in frequency of stimulation is accompanied by a reduced force of contraction in vivo and in vitro. The present study was aimed to investigate whether inotropic stimulation influences the inverse force-frequency relationship in failing human myocardium. METHODS AND RESULTS: The effects of the cAMP-independent positive inotropic agents ouabain (0.01 mumol/L) and BDF 9148 (0.1 mumol/L) as well as the beta-adrenoceptor agonist isoprenaline (0.01 mumol/L and 0.1 mumol/L) on the force-frequency relationship in electrically driven papillary muscle strips from nonfailing (brain death, n = 5) and terminally failing (NYHA class IV, heart transplants, dilated cardiomyopathy, n = 22) human myocardium were studied. For comparison, we examined the effect of elevation of the extracellular Ca2+ concentration (3.2 mmol/L and 6.2 mmol/L). In nonfailing myocardium, force of contraction, peak rate of tension rise, and peak rate of tension decay increased, whereas time to peak tension and time to half relaxation decreased following an increase of stimulation frequency. In NYHA class IV, force of contraction gradually declined followed by changes of other parameters of isometric contraction. Moderate stimulation of contractility by isoprenaline (0.01 mumol/L) partly reversed the negative force-frequency relationship in NYHA class IV and preserved the positive force-frequency relationship in nonfailing myocardium. The addition of ouabain and BDF 9148 together restored completely the force-frequency relationship in NYHA class IV. In contrast, high concentrations of isoprenaline (0.1 mumol/L) and an elevation of the extracellular Ca2+ concentration enhanced the decline in force of contraction in the presence of higher stimulation frequencies. CONCLUSIONS: It is concluded that functionally important changes occur in the intracellular Ca2+ handling, leading to the negative force-frequency relationship in terminally failing human myocardium. Interestingly, the negative force-frequency relationship can be restored by agents producing positive inotropic effects by elevation of the intracellular Na+ concentration. These findings suggest that hitherto unknown changes in the intracellular ionic homeostasis occur in the failing human heart. Even though increasing [Ca2+]i in failing heart cells may be detrimental, increasing [Na+bdi may be beneficial through a mechanism independent of an increase in [Ca2+]i.

Adult↗
PubMed1994

Administrative relationships between community mental health centers and academic psychiatry departments: a 12-year update.

OBJECTIVE: The authors investigated the administrative relationships in 1990 between medical school departments of psychiatry and community mental health centers (CMHCs). METHOD: A 20-item questionnaire was sent to the chairpersons of the 110 medical school departments of psychiatry with accredited psychiatric residencies. RESULTS: Sixty-nine percent of the chairpersons responded to the questionnaire. Sixty-eight percent of the responding chairpersons reported that their departments had relationships with CMHCs, and 90% of these relationships involved the education of psychiatric residents. Most responding chairpersons described the quality of their existing CMHC relationships as good to excellent. In the most common type of relationship reported the CMHC was used as a setting for resident education. The vast majority of responding chairpersons stated that quality resident education is possible in a CMHC, and about two-thirds of the responding chairpersons with CMHC relationships involving residency education rated the CMHC rotation as of major importance to their residency programs. CONCLUSIONS: CMHCs continue to be an important and valued component of the educational experience for many psychiatric residents, and many departments of psychiatry have recognized the advantages and benefits of CMHCs for residency training. There are now considerable data on how a relationship between a medical school department and a CMHC should be structured to achieve maximum benefit for both the department and the CMHC.

Administrative Personnel↗
PubMed2001

The relationship between treatment access and spending in a managed behavioral health organization.

OBJECTIVE: This study replicated an earlier study that showed a linear relationship between level of treatment access and behavioral health spending. The study reported here examined whether this relationship varies by important characteristics of behavioral health plans. METHODS: Access rates and total spending over a five- to seven-year period were computed for 30 behavioral health plans. Regression analysis was used to estimate the relationship between access and spending and to examine whether it varied with the characteristics of benefit plans. RESULTS: A linear relationship was found between level of treatment access and behavioral health spending. However, the relationship closely paralleled that found in the earlier study only for benefit plans with an employee assistance program linked to the managed behavioral health organization and for plans that do not allow the use of out-of-network providers. CONCLUSIONS: The results of this study replicate those of the earlier study in showing a linear relationship between access and spending, but they suggest that the magnitude of this relationship may vary according to key plan characteristics.

Health Benefit Plans, Employee↗
PubMed2003

Mapping the intimate relationship mind: comparisons between three models of attachment representations.

This study compared three models of how attachment working models might be cognitively represented. Model 1 posits that attachment representations consist of a single global working model summarizing attachment across specific relationships and domains. Model 2 proposes three independent working models for the relationship domains of family, platonic friendships, and romantic partners. Model 3 postulates that specific relationship models are nested under relationship domain representations that are, in turn, nested under an overarching global working model. Participants completed standard attachment scales for the relationship domains of family, platonic friendships, and romantic partners and also provided attachment ratings for three specific relationships within each domain. As expected, confirmatory factor analyses showed that Model 3 attained the best fit, regardless of analysis strategy, measurement strategy, gender, and relationship status. Implications are discussed.

Adolescent↗
PubMed2003

What you think is what you get: comparative evaluations of close relationships.

Three studies tested the hypothesis that focus of comparison moderates the influence of comparison standards on relationship satisfaction. Participants were asked to evaluate either their current relationships or their alternative relationships relative to an external comparison standard: a romantic stereotype (Study 1) or others' relationships (Studies 2 and 3). Consistent with the focusing hypothesis, the results show that people are more satisfied when they assimilate their relationship outcomes to a high standard or when they contrast them away from a low standard. Satisfaction, however, also increases when alternative relationships are contrasted away from a high standard or when they are assimilated to a low standard of comparison. Perceived quality of alternatives partially mediated the impact of focus of comparison on satisfaction. This finding is consistent with interdependence theory's distinction between a comparison level and a comparison level for alternative relationships, which are not completely independent from each other.

Adolescent↗
PubMedDate not supplied

Relationships between serum total iron-binding capacity and transferrin.

The relationship between serum transferrin ( TFN ) and serum total iron-binding capacity (TIBC) in a clinical setting was evaluated in two related studies. The initial study evaluated 101 blood samples representing a cross-section of hospitalized adults. The samples were double assayed for TIBC using clinical and research methodologies. TFN was assayed by a commercial radial immunodiffusion method. Clinical laboratory TIBC correlated well with research laboratory TIBC (r = 0.87, slope = 0.97, p less than 0.001, n = 50) and the relationship of TIBC to TFN yielded the following equation: TFN = 0.83 TIBC -5.6 (r = 0.82, p less than 0.001, n = 101) where TFN = mg/100 ml and TIBC = micrograms/100 ml. The second study evaluated a new TIBC assay and its effect on the TIBC/ TFN relationship. Additionally, the TFN -TIBC relationship was evaluated at low normal and abnormal TIBC levels. In this second study, TFN = 1.0 TIBC -18.8 (r = 0.88, p less than 0.01, n = 126). Subsample analysis for specimens with TIBC between 105 and 160 showed a TIBC- TFN regression line that was not significantly different than the entire sample. Inclusion of ancillary patient data such as hemoglobin and hematocrit did not improve the relationship between TFN and TIBC in either study. The relationship was unaffected by age, sex, race, disease, treatment, fever, surgery, degree of nutritional support, blood transfusion, or blood chemistry parameters in either study. Laboratories deriving TFN from measured TIBC as a nutritional status indicator must determine the relationship for the specific procedures being used in their laboratories.

Age Factors↗
PubMed1977

A developmental hierarchy of dyadic relationships.

With the work of Mahler, Bowlby and others it has been increasingly recognized in recent years that there is a sequential progression in the nature of the first dyadic relationship which forms the basis for the type and quality of subsequent interpersonal transactions. Four levels of development of dyadic relationship may be recognized. To begin with the infant is in a state of not recognizing the existence of the other individual - the autistic phase. At the toddler stage there is awareness of a separateness of physical attributes between the child and the significant other, but the persistence of the symbiotic belief that there is substantial co-extension of mental processes between the two. With further separation and individuation in the pre-school and early school-aged child, a period of magical thinking prevails for varying durations in the child, in which there is an attempt made to retain an omnipotent control of the thinking of the significant other by the mechanism of projection of thought. In the mid-elementary school-aged child the decentering process emphasized by Piaget, together with the emerging capacity for making allowance for the context within which events occur, leads to the dyadic relationship being seen by the child as being mediated through the transactions of two autonomous mental apparatuses. Dependent upon the quality of the first dyadic relationships, the nature of the communication which occurs in them, of traumatic psychological events and of the integrity of the integrated forces of personality formation, residues of earlier modes of perceiving the dyadic relationship may be encountered. Examples of these in adolescent and adult patients are given. The recognition of the possibility of shifts in the perception of the levels of the dyadic relationship is of importance in the conduct of individual pschotherapy, as the therapist can then deal more realistically with such topics as the establishment of goals, the management of the modes and quality of communication, as well as of transference and counter-transference relationships. This is particularly true of the treatment of patients with poorly integrated personalities. The fluctuations referred to are seen most dramatically with some schizophrenic patients.

Adult↗
PubMed2005

Perceived control and emotional status in abusive college student relationships: an exploration of gender differences.

The authors assessed perceived control, dysphoria, hopelessness, self-esteem, and optimism in 280 college students involved in abusive and nonabusive relationships. Women reported higher levels of dysphoria and lower levels of self-esteem and optimism than men. Women in abusive relationships reported more psychological symptoms than men in abusive relationships. After controlling for gender differences in emotional status, participants in abusive relationships showed more psychological symptoms than those in nonabusive relationships. Women showed lower perceived control of relationship conflicts than men. Men experiencing high levels of abuse reported higher perceived control of relationship conflict than females experiencing low levels of abuse. Perceived control was affected more by gender than emotional status, abuse level, and gender-affected emotional status. The authors discuss the results in terms of their implications for future investigations of emotional reactions to abuse.

Adult↗