Associations Between Multiple Dimensions of Sleep and Mood During Early Adolescence: A Longitudinal Daily Diary Study.

Prior research has observed reciprocal associations between sleep and mood. However, these findings are primarily based on the examination of one or two aspects of sleep behaviors (e.g., duration, quality), neglecting how multiple dimensions of sleep (particularly indicators pertinent to adolescence, e.g., sleep variability) are linked to adolescent mood both daily and longitudinally. Drawing on a multidimensional framework for sleep, this study addressed the knowledge gap by examining the directionality of and differential effects for associations between multiple dimensions of sleep and mood during early adolescence. Participants were 273 Chinese early adolescents (34.39% girls; Mage = 11.57, SD = 1.31), who filled out a pre-survey on demographics (T1) and 7-day diaries on sleep (i.e., duration, quality, disturbance, and latency) and mood (i.e., positive and negative mood). Adolescents completed another wave of diary reports 1 year later (T2). Findings revealed both bidirectional and unidirectional, within-person effects depending on specific sleep parameters, suggesting differential associations between multiple dimensions of sleep and mood. Specifically, on days when adolescents had longer sleep latency and greater disturbance than usual, they reported higher negative mood the next day, whereas higher negative mood was linked to poorer sleep quality the next day. The longitudinal investigation found that greater variability in sleep quality at T1 was associated with higher negative mood at T2. These findings underscore the importance of understanding the complex interplay between sleep and mood by examining the directionality of and differential effects for the daily and longer-term associations between multiple dimensions of sleep and mood among early adolescents.

Racial-Ethnic Discrimination and Early Adolescents' Behavioral Problems: The Protective Role of Parental Warmth.

OBJECTIVE: The purpose of the study was to investigate the association between discrimination by multiple sources (ie, teachers, students, and other adults) and early adolescents' behavioral problems (ie, internalizing, externalizing, and attention problems), also considering the protective role of parental warmth in the association. METHOD: Cross-sectional analyses were conducted with 3,245 early adolescents of color obtained from the Adolescent Brain Cognitive Development Study (ABCD Study) at year 1 follow-up (Y1), a large and diverse sample of children (mean age = 9.48 years) in the United States. Racially-ethnically minoritized adolescents reported sources of discrimination, parental warmth, and symptoms of psychopathology. Regression with interaction terms was conducted to investigate the associations among sources of discrimination, parental warmth, and behavioral problems among racially-ethnically minority adolescents. Sensitivity analyses were conducted to examine (1) race/ethnicity and sex/gender variations; (2) whether the associations between different sources of discrimination and behavioral problems were reliably different; and (3) effects of discrimination, parental warmth, and their interplay at Y1 in predicting adolescents' behavioral problems at year 2 follow-up. RESULTS: Early adolescents experiencing interpersonal racial-ethnic discrimination by multiple sources, including teachers, students, and other adults, reported higher levels of attention, internalizing, and externalizing problems. Parental warmth was protective for the association between interpersonal racial-ethnic discrimination and early adolescents' behavioral problems. CONCLUSION: Experiencing interpersonal racial-ethnic discrimination from teachers, peers, and other adults is related to heightened attention, internalizing, and externalizing problems among racially-ethnically minoritized early adolescents. Parental warmth may reduce the risk of developing behavioral problems among early adolescents who experience interpersonal racial-ethnic discrimination from students, teachers, and other adults outside of school. DIVERSITY & INCLUSION STATEMENT: We worked to ensure race, ethnic, and/or other types of diversity in the recruitment of human participants. We worked to ensure sex and gender balance in the recruitment of human participants. We worked to ensure that the study questionnaires were prepared in an inclusive way. One or more of the authors of this paper self-identifies as a member of one or more historically underrepresented racial and/or ethnic groups in science. One or more of the authors of this paper self-identifies as a member of one or more historically underrepresented sexual and/or gender groups in science. One or more of the authors of this paper received support from a program designed to increase minority representation in science. We actively worked to promote inclusion of historically underrepresented racial and/or ethnic groups in science in our author group. While citing references scientifically relevant for this work, we also actively worked to promote inclusion of historically underrepresented racial and/or ethnic groups in science in our reference list. We actively worked to promote sex and gender balance in our author group. While citing references scientifically relevant for this work, we also actively worked to promote sex and gender balance in our reference list.

Daily social support and school belonging among rural Chinese adolescents: Variations by parental migration.

"Left-behind" children refer to those who live in rural areas but have parents migrating to urban areas for work. They are at increased risk for developmental problems and family dysfunction. However, we currently know little regarding their support systems at school. Using daily data over five school days from 90 adolescents (Mage = 13.70) in rural China, this study investigated daily associations linking teacher and peer support to school belonging, and how these associations varied by parental migration. Teacher but not peer support was positively associated with same-day school belonging. However, this association was attenuated for adolescents with longer duration and history of parental migration. The findings highlighted the importance of considering school settings and within-group variations for left-behind adolescents.

Multiple Discrimination and Substance Use Intention in Late Childhood: Findings From the Adolescent Brain Cognitive Development (ABCD) Study.

PURPOSE: The study aimed to investigate longitudinal, bidirectional associations between discrimination due to multiple reasons (race/ethnicity, sexual orientation, weight; termed multiple discrimination) and substance use (SU) intention in late childhood. These associations were compared across youth with no, single, and multiple (i.e., intersecting) marginalized identities based on race/ethnicity, sexual orientation, and overweight status. METHODS: Data were drawn from a national sample of youth in the Adolescent Brain Cognitive Development study (N = 8,530; 9-12 years old). Youth reported both their experiences of multiple discrimination (the number of forms of discrimination youth experienced) and SU intention at one-year and two-year follow-ups. Theoretically relevant covariates were included. RESULTS: Compared to non-marginalized youth (n = 2,689) and youth with single marginalized identities (n = 3,399), youth with intersecting marginalized identities (n = 2,442) reported the highest SU intention and multiple discrimination across waves. Only for this last group, multiple discrimination predicted stronger SU intention subsequently (ß = 0.07, 95% confidence interval [0.02, 0.11]), whereas stronger SU intention predicted lower levels of multiple discrimination over time (ß = -0.06, 95% confidence interval [-0.09, -0.02]). Sensitivity analyses yielded similar patterns with some nuances among subgroups of youth with varying intersecting marginalized identities. DISCUSSION: Multiple discrimination predicted stronger SU intention over time in late childhood, particularly among youth with intersecting marginalized identities. Policies and practices should consider addressing multiple discrimination to reduce SU disparities among diverse youth.

Effect of Optimizing the Induction Regimen in Preventing Cough Reactions in Patients Undergoing General Anesthesia: A Prospective Randomized Controlled Study.

PURPOSE: During the induction of general anesthesia, opioids and endotracheal intubation may cause coughing. This study aimed to investigate the safety and effectiveness of an optimized drug induction scheme for general anesthesia to prevent coughing in patients. METHODS: A total of 220 patients aged 18 to 65 years who underwent surgery under general anesthesia with endotracheal intubation were randomly assigned to two groups, each with 110 patients. One group was administered a divided sufentanil bolus (group A) and the other with a single sufentanil bolus (group B). Anesthesia induction was performed according to the drug induction scheme of 1st, 2nd, and 3rd minutes. The primary outcome was a coughing episode associated with the administration of opioids during anesthesia induction. We also recorded the pain associated with drug injection, hemodynamics, and blood oxygen saturation during the induction of anesthesia. FINDINGS: All patients were included in the final statistical analysis. Compared with group B, the incidence of opioid induced cough (OIC) was significantly higher in group A (9.1% vs. 0, P = 0.001). There was no cough reaction of tracheal intubation in either group. There was no severe pain due to propofol and rocuronium injection in either group (P > 0.05). The mean arterial pressure (MAP), heart rate (HR), and peripheral oxygen saturation (SpO2) values were within the normal range at each time point during the induction period in both groups. IMPLICATIONS: According to the optimized 1st, 2nd, and 3rd minutes anesthesia induction regimen, with a single final intravenous bolus of sufentanil after the diluted rocuronium bromide administration, no sufentanil and tracheal intubation induced coughing reactions were observed. TRIAL REGISTRATION: The study protocol was registered in the Chinese Clinical Trial Registry (ChiCTR2200062749, http://www.chictr.org.cn/showproj.aspx?proj=175018) on August 17, 2022.

Daily ethnic-racial support from family and peers: Changes from before to during the COVID-19 pandemic.

Limited research has investigated the changes in ethnic-racial support that adolescents received during the COVID-19 pandemic. This study collected 2-week, daily data from 185 Midwest U.S. ethnic-racial minority adolescents (14.60 years old; 52% female) at two waves, spanning about 1 year apart. For the Pandemic Cohort (936 days of data, 41 participants; 2019-2020), peer cultural socialization declined significantly from before to during the pandemic; family cultural socialization, as well as family and peer support against discrimination, became more positively associated with same-day ethnic-racial identity over the pandemic ( ß = .13-.16). No significant changes emerged for the pre-Pandemic Cohort (3304 days of data, 144 participants; 2017-2019). Findings highlight the importance of ethnic-racial support during the pandemic when ethnic-racial issues were amplified in society.

Daily associations between adolescents' executive function and school engagement: The role of ethnic/racial discrimination.

Executive function (EF) has rarely been considered for adolescents' daily school outcomes or in conjunction with ethnic/racial discrimination. Using 2-week, daily data from 137 ethnic/racial minority adolescents (Mage = 14.56; 53% female; 56% Black, 19% Latinx, 7% Asian, 7% Native, 12% other [e.g., multiracial]) in the Midwest United States, this study examined same-day, within-person associations between EF and school engagement (controlling for prior-day engagement), and how these associations varied by adolescents' daily experiences of ethnic/racial discrimination. Two EF components, inhibitory control and working memory, were associated with higher levels of school engagement on the same day, only on days when adolescents reported lower than their typical levels of discrimination. An alternative, indirect effect (i.e., discrimination compromised same-day school engagement via EF) was not observed. Findings highlight novel mechanisms through which discrimination may contribute to educational disparities. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Family and peer ethnic-racial socialization in adolescents' everyday life: A daily transactional model with ethnic-racial identity and discrimination.

There is limited research on ethnic-racial socialization outside the family context (e.g., in peer groups). Using two-week, daily data from 177 U.S. ethnic-racial minority 9th graders in 2017-2020 (Mage = 14.48 years old; 51% females; 52% Black, 20% Latinx, 10% Asian American, 6% Native American, and 12% Other), this study tested a transactional model of family and peer ethnic-racial socialization, identity, and discrimination. Bidirectional associations were observed between family and peer cultural socialization across days (ßs = .09-.10). Peer but not family cultural socialization promoted adolescents' ethnic-racial identity on the next day (ßs = .07-.10). Ethnic-racial discrimination predicted greater next-day family ethnic-racial socialization (cultural socialization, preparation for bias; ßs = .08-.11), whereas family and peer ethnic-racial socialization predicted next-day discrimination (ßs = .11-.18). The differential roles of family and peer ethnic-racial socialization are discussed.

Superwoman Schema, Racial Identity, and Cellular Aging Among African American Women.

BACKGROUND AND OBJECTIVES: African American women experience faster telomere shortening (i.e., cellular aging) compared with other racial-gender groups. Prior research demonstrates that race and gender interact to influence culturally specific norms for responding to socially-relevant stress and other stress-coping processes, which may affect healthy aging. RESEARCH DESIGN AND METHODS: Data are from African American Women's Heart & Health Study participants who consented to DNA extraction (n = 140). Superwoman Schema (SWS) was measured using 5 validated subscales: presenting strength, emotion suppression, resisting vulnerability, motivation to succeed, and obligation to help others. Racial identity was measured using 3 subscales from the Multidimensional Inventory of Black Identity: racial centrality, private regard, and public regard. Relative telomere length (rTL) was measured using DNA extracted from blood samples. Path analysis tested associations and interactions between SWS and racial identity dimensions with rTL. RESULTS: For SWS, higher resistance to being vulnerable predicted longer telomeres. For racial identity, high private regard predicted longer telomeres while high public regard predicted shorter telomeres. Interactions were found between public regard and 2 SWS dimensions: among women with high public regard, emotion suppression (ß = 0.20, p < .05) and motivation to succeed (ß = 0.18, p < .05) were associated with longer rTL. The interaction between high centrality and emotion suppression predicted shorter rTL (ß = -0.17, p < .05). DISCUSSION AND IMPLICATIONS: Culturally specific responses to gendered racism and racial identity, developed early in life and shaped over the life course, are important psychosocial determinants of cellular aging among African American women.

Adolescents' daily executive function: Methodological considerations, daily variation, and associations with daily experiences.

Research has rarely considered within-person variability in executive function. Using a web-based program, this study investigated end-of-day executive function for 2 weeks among 178 racially/ethnically diverse adolescents (Mage = 14.53). For each core component of executive function (cognitive flexibility, inhibitory control, working memory), short-term practice effects were identified for the first 4 days of assessments, and no fatigue effects emerged for the remaining days. Another 5 days were needed to achieve good reliability for assessing executive function at the between-person level. Considerable daily variation was identified for each component and the overall construct of executive function, with between 40% and 55% of the variation attributed to within-person variability. These daily variations were associated with adolescents' affective and academic experiences during the day. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

Daily bidirectional associations between adolescent negative peer interactions and sleep in rural China: The moderating effect of parental migration.

Left-behind adolescents' biobehavioral adjustment, such as sleep, is poorly understood by research. Using daily data over one week from 90 middle school students (Mage  = 13.69) in rural China, this study investigated daily bidirectional associations between negative peer interactions and sleep disturbances, and how these associations varied by parental migration. On days when adolescents reported higher levels of negative peer interactions, they also reported greater daytime dysfunction the following day. Conversely, when adolescents had more nighttime disturbances the previous night, they also reported higher levels of negative peer interactions. The effects of other sleep disturbance indicators (poor sleep quality the previous night and daytime dysfunction on the same day) on negative peer interactions were significant for adolescents with at least one parent migrating and for those with both parents migrating. Findings highlight the importance of considering dynamic interrelations between interpersonal and biobehavioral factors for the healthy development of left-behind adolescents.

Effect of preemptive dezocine before general anesthesia on postoperative analgesia in patients undergoing laparoscopic cholecystectomy: A prospective observational study.

Dezocine is proposed as an adjunctive analgesic for postoperative pain control. This randomized, double-blind, controlled study aimed to investigate the effect of preoperative Dezocine therapy on postoperative pain following laparoscopic cholecystectomy as well as the underlying mechanisms.Eighty patients scheduled for laparoscopic cholecystectomy were randomly allocated into 2 groups as follows: patients in Group D received Dezocine 0.15 mg/kg before anesthesia induction and patients in Group S received same volume of saline. The pain intensity, sedation score, sufentanil-based patient-controlled analgesia (PCA) consumption were recorded for 24 hours after surgery. Plasma concentrations of norepinephrine and serotonin were also measured.During the first 24 hours after surgery, the patients in Group D experienced lower pain score assessed by numerical rating scale (NRS) at 3 hours (rest: P = .038; movement: P = .036), 6 hours (rest: P = .038; movement: P = .036), 12 hours (rest: P = .038; movement: P = .036), and 24 hours (rest: P = .038; movement: P = .036). Dezocine also decreased the sedation levels at 5 minutes (P = .031) after arrival at the PACU. Sufentanil-based PCA consumption in Group D was decreased when compared with Group S in the second to fourth phase after surgery (6-12 hours: P = .017; 12-18 hours: P = .003; 18-24 hours: P = .039). Plasma norepinephrine and serotonin concentrations were higher in the Group D at 24 hours after surgery (norepinephrine: P = .009, serotonin: P = .042). In addition, Group D showed less incidence of nausea/vomiting (P = .032) as well as a higher postoperative satisfaction score after surgery (P = .017).In conclusion, preemptive Dezocine administration is suggested to be useful for the management of postoperative pain in short-lasting surgery such as laparoscopic cholecystectomy.

[Diatoms in drowned and postmortem immersed rabbits' lungs].

OBJECTIVE: To investigate the numbers, sizes and types distribution of diatoms in drowned and postmortem immersed rabbits' lungs. METHODS: Sixty-two rabbits were randomly divided into drowning group (n = 30), postmortem immersion group (n = 30) and land death group (n=2), and the diatoms in each lung lobe were analyzed quantitatively and qualitatively by microwave digestion and scanning electron microscopy. RESULTS: In the drowning group, the diatoms were detected in each lung lobe with Cyclotella and Melosira in the majority. In the postmortem immersion group, Cyclotella was in the majority. And the diatoms weren't detected in some lung lobes in postmortem immersion. There were significant differences in the detection rates of upper lobe of left lung, middle lobe and cardiac lobe of right lung in two groups (P < 0.05). CONCLUSION: Based on the microwave digestion and scanning electron microscopy, the numbers, sizes and types distribution of diatoms in drowned and postmortem immersed rabbits' lungs can be analyzed and used as references for testing theory.