Advances in periodontal diagnosis. 7. Proteolytic and hydrolytic enzymes link with periodontitis

Tobacco use poses one of the greatest health problems at school. Its prevention through health education should be assumed up by all members of the school community and health personnel (especially family and respiratory physicians). We designed an anti-tobacco program lasting three years aimed at all the students of the 6th, 7th and 8th grades at school as well as those in the pre-university years that was implemented in a rural area. This study reports the results of the attitudes of the 610 students (256 boys and 354 girls, between 11 and 20 years old) collected at the end of the program. 59.4% of the boys and 44.1% of the girls reported having smoked on some occasion. The mean age at the time of the first contact with tobacco was 11.8 +/- 2.4 years, this being significantly different between the boys and the girls. The main reasons for starting to smoke tobacco were quoted as peer pressure (57.1%) and curiosity (55.5%). That their parents smoked was only adduced as a reason by 29.5% of the students. Knowledge of the harmful effects of tobacco was limited and only 57% related tobacco smoking to lung cancer and only 41% to coronary pathology. At the end of the program 13.6% of the students involved smoked. 93.9% of those who quit smoking related this event to the program. Of those still smoking, 63.6% said they would like to quit. This justifies the need to reinforce the knowledge that will allow them to switch attitudes and stop smoking. Intervention programs in school populations have proved to be useful in the struggle to decrease smoking among school children. If an adolescent can avoid smoking it is likely that s/he will not smoke in adulthood. It is necessary to further develop this type of anti-tobacco program as reflected in this paper.     

Gender differences in solution of algebraic word problems containing irrelevant information.

In the 1st experiment, 219 boys and 217 girls in 10th grade classified algebraic word problems in terms of whether the problems contained missing, sufficient, or irrelevant information for solution. Among students with similar levels of general mathematical ability, girls were less likely than boys to identify missing or irrelevant information within problems. More girls than boys perceived irrelevant information within the text of a problem as being necessary for solution. In the 2nd experiment, 11th-grade girls (n?=?234), who were as able as boys (n?=?287) to solve algebraic word problems containing sufficient information, had lower solution rates than did boys on problems containing irrelevant information. On the latter problems, the girls more often incorporated the irrelevant information into their attempted solution than did the boys. The results point to differences between boys and girls in knowledge of problem structure. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Adolescents' self-acceptance and perceptions of their parents.

Measures of self-acceptance, adjustment, perceived acceptance by parents and identification with them were correlated with 10 sub-tests of a parent-child relations questionnaire. Ss were 44 college freshman with a mean age of 18 yr. Adolescents high in self-acceptance and adjustment perceived their parents as loving and not as neglectful or rejecting. Ss' self-regard was more closely related to their mothers' than their fathers' child-rearing attitudes. Correlations between self-regard measures and evaluation of parents' child-rearing attitudes were higher for boys than for girls. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Confrontation with aggressive peers at school: Students' reluctance to seek help from the teacher .

Asking for assistance from a teacher is generally viewed by elementary school students as a way of avoiding rather than resolving peer conflict. However, there are situations when it is appropriate and perhaps necessary to seek help. This study investigated such situations. Vignettes that portrayed aggressive peer conflict at school were presented to 128 3rd and 4th graders, who were asked what they would do and why. Students' self-perceptions of peer relations also were measured. At Grade 3, boys and girls were equally likely to go to the teacher for help, whereas at Grade 4, girls were more likely than boys to do so. At Grade 4, girls showed greater interest than boys in resolving conflict and "getting things back to normal." At Grade 3, students interested in revenge tended to go to the teacher. At both grades, boys were more concerned than girls that help seeking might lead to hassles with the teacher or reprisals from classmates. Boys who perceived themselves as popular and girls who perceived themselves as unpopular were relatively likely to seek help. Relations between help seeking and children's grade level, gender, and self-perceptions are discussed in terms of goal and strategy components in a social-information-processing model of conflict resolution. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Gender differences in food-related concerns, beliefs and behaviours of north Queensland adolescents

OBJECTIVE: To describe the beliefs, attitudes, behaviours and knowledge of North Queensland adolescents about food and nutrition. METHODOLOGY: A questionnaire surveyed 791 Year 8 students from private schools. RESULTS: More girls than boys felt guilt about food, sometimes ate from boredom, reported trying to select foods that were good for them and were concerned about the fat content of food; 30% of boys and 17% of girls thought they should be concerned about their food intake only when overweight. Low daily dietary intakes were reported for bread, fruit, vegetables and dairy products with only 24% eating at least one fruit, one vegetable, one dairy product and one core cereal food daily. Fat and sugar intake was high: 41% students ate high fat savoury foods and 53% ate high sugar foods at least seven times during the week. Parents, television and school provided information about food and nutrition to 70-80% of these students, followed by friends and magazines with doctors and teachers providing information on weight and weight loss to 10% of students. CONCLUSIONS: Doctors should be aware of the low intake of recommended foods as well as the high intakes of fat and sugar among adolescents and the gender differences in food related beliefs and behaviours when treating nutrition related diseases and providing guidance for their prevention.     

The importance of gesture in children's spatial reasoning.

On average, men outperform women on mental rotation tasks. Even boys as young as 4 1/2 perform better than girls on simplified spatial transformation tasks. The goal of our study was to explore ways of improving 5-year-olds' performance on a spatial transformation task and to examine the strategies children use to solve this task. We found that boys performed better than girls before training and that both boys and girls improved with training, whether they were given explicit instruction or just practice. Regardless of training condition, the more children gestured about moving the pieces when asked to explain how they solved the spatial transformation task, the better they performed on the task, with boys gesturing about movement significantly more (and performing better) than girls. Gesture thus provides useful information about children's spatial strategies, raising the possibility that gesture training may be particularly effective in improving children's mental rotation skills. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Prevalence and connotative meaning of cigarette smoking among Thai adolescents and young adults

Prevalence and evaluative opinions about smoking among 527 adolescents and young adults were quantified in order to assess the efficacy of Thailand's mass media antismoking campaign. The reactions of subjects to the smoking of (a) father, (b) mother, (c) boys, (d) girls, and (e) myself were obtained using a semantic differential measure. Virtually all subjects had seen antismoking adds on television and the overall perception of smoking was highly disapproving with significant gender and age differences being present. Older males were more likely to smoke and had less critical attitudes about this harmful behavior than their younger peers and female participants. Reactions to female smoking (mother and girls) were more derogatory than to the same behavior among males (father and boys). Results suggest that smoking will continue as a serious problem among Thai males and demonstrate the addictive nature of cigarette smoking which persists in spite of the increasingly negative evaluative attitudes of users.     

Gender differences in writing self-beliefs of elementary school students.

The authors investigated the nature of gender differences in the writing self-beliefs of elementary school students in Grades 3, 4, and 5 (N?=?363). Girls were judged superior writers, but there were no gender differences in writing self-efficacy after controlling for writing aptitude. However, girls expressed that they were better writers than were other boys or girls in their class or in their school to a greater degree than did boys. Only writing self-efficacy beliefs and aptitude predicted writing performance in a path model that included writing apprehension, self-efficacy for self-regulation, and perceived usefulness of writing. Self-efficacy mediated the effects of aptitude and self-efficacy for self-regulation on performance. Writing self-concept was higher and apprehension lower for students in Grade 3 than in Grade 5. Data were consistent with A. Bandura's (1986) social cognitive theory and suggest that boys and girls may use a different metric when responding to traditional self-efficacy scales. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Gender matters, too: The influences of school racial discrimination and racial identity on academic engagement outcomes among African American adolescents.

The authors examined relationships among racial identity, school-based racial discrimination experiences, and academic engagement outcomes for adolescent boys and girls in Grades 8 and 11 (n = 204 boys and n = 206 girls). The authors found gender differences in peer and classroom discrimination and in the impact of earlier and later discrimination experiences on academic outcomes. Racial centrality related positively to school performance and school importance attitudes for boys. Also, centrality moderated the relationship between discrimination and academic outcomes in ways that differed across gender. For boys, higher racial centrality related to diminished risk for lower school importance attitudes and grades from experiencing classroom discrimination relative to boys lower in centrality, and girls with higher centrality were protected against the negative impact of peer discrimination on school importance and academic self-concept. However, among lower race-central girls, peer discrimination related positively to academic self-concept. Finally, socioeconomic background moderated the relationship of discrimination with academic outcomes differently for girls and boys. The authors discuss the need to consider interactions of individual- and contextual-level factors in better understanding African American youths' academic and social development. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Accent, perpetual foreigner stereotype, and perceived discrimination as indirect links between English proficiency and depressive symptoms in Chinese American adolescents.

The current study uses García Coll et al.'s (1996) developmental competence model of ethnic minority children and Kim's (1999) racial triangulation theory as frameworks for investigating the mechanisms whereby early adolescent English proficiency relates to perceived discriminatory experiences and adolescent depressive symptoms. Data from 444 adolescents (239 girls and 205 boys, with a mean age of 13.0 years for Wave 1 and 17.0 years for Wave 2) and their parents living in major metropolitan areas of Northern California were collected. The structural equation modeling analyses indicate that self-reported low levels of English proficiency among Chinese American adolescents in middle school are related to these same students later reporting that they speak English with an accent in high school, which in turn relates significantly to their perceiving that they have been stereotyped as perpetual foreigners. For girls, a perpetual foreigner stereotype relates to perceptions of chronic daily discrimination, increasing the risk of depressive symptoms. For boys, the path is different: A perpetual foreigner stereotype is apparently related to discriminatory victimization experiences, which increase the risk of depressive symptoms. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Marital conflict, gender, and children's appraisals and coping efficacy as mediators of child adjustment.

The role of children's perceptions and appraisals in the impact of marital conflict was examined for 51 9- to 12-yr-olds from intact families. Gender differences were found in the cognitions and coping processes related to marital conflict and child adjustment. Appraisals of coping efficacy and the threat posed by marital conflict predicted adjustment in boys, whereas self-blame was linked with internalizing problems for girls. The appraised destructiveness of conflict was significantly related to perceived threat in boys and self-blame in girls. Boys appeared more attuned or, alternatively, less shielded from marital conflict, as reflected by the higher correlations with mothers' reports of marital conflict for boys than for girls. The significance of boys' appraisals to adjustment was suggested by the fact that boys' perceptions were better predictors of adjustment outcomes than were mothers' reports. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Career preferences of medical students: influence of a new four-week attachment in general practice

BACKGROUND: It is not clear why medical students choose one specialty over another. Experiences at medical school are extremely strong determinants of attitudes to the medical specialties, and attitude is the most important factor in determining choice. AIM: This study sought to describe the factors influencing career choices of final year medical students, the effect of a new four-week attachment in general practice on career choices, and changes in career choices towards or away from general practice between the final year and the end of the preregistration house officer year. METHOD: Career preferences, and influences on them, were assessed by questionnaires administered to 206 medical students undergoing their final clinical attachment at the University of Glasgow immediately before and immediately after a four-week attachment in general practice. These were followed up by a postal questionnaire at the end of the preregistration house officer year. RESULTS: One hundred and thirty-one students returned all three questionnaires. Before the attachment, students born outside the UK, and those who had a previous or intercalated degree were significantly less likely to put general practice as a career preference; female students were more likely to put it as their first career choice. After the attachment, the number stating that it was 'likely' or 'very likely' that they would choose general practice as a career increased from 60 to 72--mainly through male students changing their preference--but after the preregistration house officer year it had fallen back to 56. Seventeen of the preregistration house officers were planning to complete posts which would qualify for GP training. Reasons for changing preference towards general practice were mainly to do with a dislike of and disillusionment with hospital medicine and with the perceived lifestyle advantages of general practice. Reasons for changing preference away from general practice were mainly to do with positive feelings about hospital medicine and a dislike of the management aspects of general practice. CONCLUSION: The general practice attachment influenced students, especially males, towards a career in general practice, but this effect was transient. This cohort of doctors should be followed up in order to discover their ultimate career choices.     

Children's interactions in triads: Behavioral profiles and effects of gender and patterns of friendships among members.

In all, 56 triads of same-sex 3rd, 4th-, and 5th-grade children were observed during an intimate discussion, a cooperative puzzle task, a competitive game, and free play. Observers coded triadic interaction using a Q sort and individual process ratings. Of particular interest was how gender and the pattern of friendship ties among group members related to children's behavior. Triads of girls were more intimate, exchanged more information, and were less aggressive than were triads of boys. Analyses of within-gender variability revealed 2 prototypical types of triads among boys but only 1 among girls. Girls and boys expressed similar attitudes toward triadic interaction in post-session interviews. However, girls', but not boys', attitudes were closely linked to the quality of interactions during the session. For both sexes, interaction was not strongly influenced by the initial configuration of friendship ties among triad members. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Perceived control in adolescent substance use: Concurrent and longitudinal analyses.

A sample of 9th-grade students (1,293 individuals, 51% girls) attending compulsory schools in Reykjavik, Iceland, was surveyed and followed up 3 years later. The relationship between perceived control and substance use is examined concurrently at age 14 for experimentation with tobacco and alcohol and longitudinally (14–17 years of age) for daily smoking, heavy drinking, and illicit drug use. Taking into account sociodemographic characteristics (family structure, socioeconomic status, and gender) and parental and peer use, the results of concurrent analyses indicate that adolescents who expressed more personal control were less likely to have smoked and to have had a drink at age 14. Longitudinal analyses showed that perceived control at age 14 predicted both daily smoking and illicit drug use among girls at age 17 but not among boys. Conversely, perceived control did not predict heavy drinking among adolescents. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Attitudes of health care providers and students towards tattooed people

Attitudes of health care providers and medical and nursing students (n = 513) towards tattooed adults and adolescents were examined. No respondent group had mean scores reflecting a positive attitude towards tattooed persons. Overall, physicians (MDs) and registered nurses (RNs) rated tattooed people less positively than did students. Womens' attitudes were consistently less favourable than those of men, especially towards tattooed professional women. Attitudes towards tattooed adolescents were generally less positive than attitudes towards the adult groups. Research has found that negative attitudes impact patient care. This study suggests that tattooed persons, especially adolescents, may be at risk of being negatively perceived when they seek health care. Increased efforts are needed to assure that those with tattoos receive non-judgemental and sensitive care.     

Attitudes to food, eating and dieting behaviour in 11 and 14-year-old Swedish children

All students in grades 5 and 8 of three randomly chosen schools in Uppsala (n = 236) were eligible, and 197 participated. The survey included a Swedish version of the Children's Eating Attitudes Test (ChEAT) and a demographic and dieting questionnaire. In total, 47% of the children (girls 70%, boys 25%) wanted to be thinner and 25% had tried to lose weight. In the 5th grade, 49% of the girls reported that they wanted to be thinner and in the 8th grade 83%. Fifty-three percent of the girls in the 8th grade reported that they had tried to lose weight; 36% admitted that they felt too fat but only 5% reported that other people found them too fat. The methods used were caloric restriction and exercise. Compared with US data, the Swedish students dieted less often and showed lower ChEAT scores. Compared with earlier data, our results show that weight concerns begin at an earlier age among Swedish children today.     

Gender differences in the relationship between perceived social support and student adjustment during early adolescence.

The current study is an investigation of early adolescents' perceptions of social support from parents, teachers, classmates, and close friends, and how that support is related to measures of students' adjustment on a range of behavioral indices. Data were collected on a sample of 246 students in Grades 6 through 8 using the Child and Adolescent Social Support Scale (CASSS), and the Parent Rating Scale of the Behavior Assessment System for Children (BASC-PRS). Analyses using the social support subscale scores (Parent, Teacher, Classmate, and Close Friend) replicated past research in finding gender differences on mean levels of perceived social support, with girls perceiving higher levels of classmate and close friend support than boys. In addition, girls reported significantly more support from close friends than any other source, whereas boys reported significantly less support from classmates than any other source. Finally, results demonstrated gender differences in the relationship between social support and several indices of student adjustment, and provided evidence for the importance of considering gender differences in planning future research related to social support. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

African-American adolescents' knowledge, health-related attitudes, sexual behavior, and contraceptive decisions: Implications for the prevention of adolescent HIV infection.

195 African-American adolescents completed measures of knowledge related to AIDS, attitudes toward condoms, health locus of control, vulnerability to HIV infection, peer sexual norms, personal sexual behavior for the past 6 mo, and contraceptive preferences. Hotelling's T–2 tests revealed that girls were more knowledgeable about AIDS, reported fewer sexual partners, held more positive attitudes toward precautionary sexual behavior, and perceived themselves to have greater control than boys. Five variables accounted for 44% of the variance in condom use: condom use from the 1st intercourse occasion, earlier grade in school, lower belief in an external locus of control, and higher scores on the Effect on Sexual Experience and Self-Control subscales of the Condom Attitude Scale. Implications for the content, format, and timing of HIV prevention with African-American adolescents are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Coping with perceived peer stress: Gender-specific and common pathways to symptoms of psychopathology.

This study investigated gender differences in the moderating and mediating effects of responses to stress on the association between perceived peer stress and symptoms of psychopathology. A sample of 295 middle school students (63.7% female; Mage = 12.39 years, SD = 0.99) completed self-report surveys on stress, coping, and behavioral problems. Involuntary responses to stress (e.g., physiological arousal, intrusive thoughts, impulsive action) mediated the association between perceived stress and anxiety/depression and aggression for girls and for boys. Disengagement coping (e.g., denial, avoidance) partially mediated the association between peer stress and anxiety/depression for boys and for girls. In contrast, disengagement coping mediated the association between peer stress and overt aggression for boys only. Finally, engagement coping (e.g., problem solving, emotion regulation, cognitive restructuring) buffered the indirect effect of peer stress on symptoms of psychopathology for girls only. Implications for prevention and intervention efforts are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Correlates of preschool girls' feminine and masculine toy preferences.

Observed 47 preschool girls (2.5–4 yrs old) in social interaction with boys and girls. For young Ss, feminine toy preference was positively related to interaction with girls, whereas masculine toy choice was positively associated with interaction with boys. For older girls, feminine toy choice was positively related to interaction with girls. Large, older girls tended to play with masculine toys. (5 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)