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61.
Cultural value gaps between Mexican American parents and their children are hypothesized to place youth at risk for poor mental health outcomes. While most studies examine these gaps on broad measures of acculturation, the present study examined value gaps in affiliative obedience, a cultural value that has at its core the belief that respect and deference must be shown to parents and adults. The present study hypothesized that adolescents would exhibit greater depressive symptoms when youth demonstrated lower levels of affiliative obedience than their mothers. Moreover, we examined whether gender, nativity status, and age predicted cultural value gaps and moderated the relationship between gaps and depressive symptoms. These questions were evaluated in a school-based sample of 159 Mexican American families whose children were either US born (n = 82) or foreign-born (n = 77). Twenty-five percent of the sample demonstrated a cultural value gap where youth endorsed lower levels of affiliative obedience than their parents, and this group reported the greatest depressive symptoms. Age moderated this relationship, and the greatest association between cultural value gaps and depression was found among the older group of early adolescents.  相似文献   
62.
Overweight and obesity are medical conditions that require a multidisciplinary analysis of their causes and treatment. In Chile a sustained increase in the presence of obesity and excess weight has been observed in children. However, the amount and the dynamics of the aforementioned problematic eating behaviours in Chilean children are unknown. The aim of this study was to assess the relationship between restrained, external, and emotional eating, and variations in body mass index (BMI) in Chilean children. Consequently, 453 children from 7 to 12 years of age responded to the Children's Dutch Eating Behaviour Questionnaire, Spanish version. In addition, their anthropometric data were obtained. A positive association was found between restrained eating and BMI, and a negative correlation between external eating and BMI. Emotional eating demonstrated a modest inverse relationship with BMI. A significant interaction between problematic behaviour and nutritional status (normal-weight, overweight, obese) was revealed. Restrained eating was characteristic of obese children whereas external eating of normal-weight children. These results suggest that problematic eating behaviours and their relationship with body weight are similar to those described in studies in Europe.  相似文献   
63.
When constructed in linear terms, cultures and identities misrepresent other people, constructing crisp boundaries that separate groups as if completely different. To demonstrate the negative impact of such views, I analyze cultural texts such as songs, films, and Web pages, showing the intercultural complexity existing in different constructions of Mexicanness as part of the dialogue arising in the political, social, and cultural interaction between Mexico and the United States. I emphasize the contrast between examples that reinforce identities that can be interpreted as fuzzy and inclusive, against those promoting and generating discrimination and exclusion.  相似文献   
64.
The authors investigated the effects of chronic low back pain (LBP) and walking speed (WS) on metabolic power and cost of transport (CT). Subjects with chronic nonspecific LBP (LBP group [LG]; n = 9) and healthy (control group [CG]; n = 9) were included. The test battery was divided into 3 blocks according to WS as follows: preferred self-selected speed (PS), and lower and higher than the PS. In each block, the volunteers walked 5 min, during which oxygen consumption was measured. Although without differences between groups, the LG had CT lower in slower speeds than in faster speeds. Walking speed affected CT only in the LG, which the group had the greatest walking economy at slower speeds.  相似文献   
65.
A pilot intervention that emphasized training and technical assistance to promote warm, sensitive, and responsive one‐on‐one caregiver–child interactions primarily during feeding and bathing/changing was implemented using regular staff in a depressed orphanage for children birth to approximately 8 years of age in Latin America. Despite a variety of unanticipated irregularities in the implementation of the intervention, many beyond the researchers' control, ward environments improved; caregivers displayed more warm, sensitive, and responsive interactions with children; and children improved an average of 13.5 developmental quotient (DQ) points after 4+ months' exposure to the completed intervention. Furthermore, 82% of the children had DQs greater than 70 before the intervention, but only 27.8% did so afterward. Although the training for all caregivers was aimed at children birth to 3 years, the number of different caregivers was reduced, and technical assistance was provided only to caregivers serving children less than 3 years, younger and older children (3–8 years) improved approximately the same amount. However, children who were transitioned from a younger to an older ward during the intervention improved less than did children who remained in either a younger or an older ward, the first evidence suggesting that the common orphanage practice of periodically graduating children from one homogeneous age group to another may impede their development. The study is consistent with others that have shown that orphanages can be changed, and increases primarily in warm, sensitive, responsive caregiver–child interactions can produce improvements in children's development.  相似文献   
66.
The purpose of this study was to examine the feasibility, acceptability, and initial outcome of a home-based adaptation of Parent-Child Interaction Therapy for at-risk infants with externalizing behavior problems. Seven 12- to 15-month-old infants and their families were recruited at a large pediatric primary care clinic to participate in a home-based parenting intervention to prevent subsequent externalizing behavior problems. Home-based assessments were conducted at baseline, postintervention, and a 4- to 6-month follow-up. Six of the 7 (86%) families completed the intervention, and all completers reported high satisfaction with the intervention. All of the mothers demonstrated significant improvements and statistically reliable changes in their interactions with their infant, and most reported clinically significant and statistically reliable changes in infant behavior problems. The current study provides preliminary support for the use of this brief, home-based parenting intervention in addressing behavior problems as early as possible to improve access to an intervention for at-risk infants and their families. Successes and challenges with the development and implementation of this intervention are discussed along with directions for future research and clinical practice.  相似文献   
67.
68.
It is accepted that once consolidation is completed memory becomes permanent. However, it has also been suggested that reactivation (retrieval) of the original memory, again, makes it sensitive to the same treatments that affect memory consolidation when given after training. Previous results demonstrated that the immediate post-training intraperitoneal administration of Nω-nitro-l-arginine methyl ester (L-NAME), a non-specific inhibitor of nitric oxide synthase (NOS), impairs retention test performance of a one-trial step-through inhibitory avoidance response in adult mice. The effect of L-NAME on retention was attributed to an action on memory consolidation of the original learning. For the first time, we report that the administration of L-NAME after the first retention test (memory reactivation) of the inhibitory avoidance response impairs retention performance over six consecutive days. This impairment effect is dose-and-time dependent and could not be attributed to a retrieval deficit since a mild footshock did not reinstate the original avoidance response and no spontaneous recovery was observed at least 21 days after training. Further support for a storage deficit interpretation as opposed to a retrieval deficit was obtained from the fact that L-NAME’s effects after retrieval were not due to state-dependency. The impairment effect of L-NAME was dependent on the age of the original memory. That is, there was an inverse correlation between the susceptibility of the memory trace when reactivated and the time elapsed between training and the first retrieval session. We suggest an action of L-NAME on memory reactivation-induced processes that are different from memory extinction of the original learning extending the biological significance of nitric oxide on memory.  相似文献   
69.
To explore 10-month-old infants' abilities to engage in intentional imitation, they were shown a human agent, a non-human agent (stuffed animal), and a surrogate object (mechanical pincers) model actions on objects. The tendency of infants to perform the target act was compared in several situations: (a) after test items were manipulated but the target action was not shown, (b) after the target act was demonstrated successfully, and (c) after the target act was demonstrated unsuccessfully. Although infants imitated the successful actions of human and non-human agents, they completed the unsuccessful actions of humans only. Toward the surrogate object infants did not respond differentially. These findings suggest that although infant may mimic the actions of human and non-human agents, they only engage in intentional imitation with people.  相似文献   
70.
The authors evaluated the effect of 3 months of resistance and aerobic training (3 sessions/week) on body balance in a group of 25 overweight and obese individuals. Prior to and after the training, they performed static and task-oriented balance tests under various conditions. Mean center of pressure (CoP) velocity and mean trace length of the CoP in the y-axis registered during a one-legged stance significantly decreased after the resistance training (19.1%, p = .024; 29.3%, p = .009). Mean trace length of the CoP in the y-axis decreased significantly also during a bipedal stance on a foam surface with eyes open and closed (10.9%, p = .040; 18.2%, p = .027). In addition, mean CoP distance and mean squared CoP distance in the anteroposterior direction during a visually guided center of mass (CoM) tracking task significantly improved (14.7%, p = .033; 28.2%, p = .016). However, only mean trace length of the CoP in the y-axis during a bipedal stance on a foam surface with eyes open and closed significantly decreased after the aerobic training (10.3%, p = .047; 16.5%, p = .029). It may be concluded that resistance training is more efficient for the improvement of the anteroposterior unilateral stability and the accuracy of the regulation of the CoM anteroposterior position than aerobic training in overweight and obese individuals.  相似文献   
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