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The role of frequently touched surfaces in the transmission of infectious diseases is well-documented, and the urgent need for effective surface technologies with antipathogen activity has been highlighted by the recent global pandemic and rise in antimicrobial resistance. Here, we have explored combinations of up to 3 different classes of compounds within a polymeric matrix to enable the fabrication of coatings with broad-spectrum activity. Compounds were either based on metals or metal oxides, namely, copper, silver, and copper oxide, essential oils, namely, cinnamaldehyde, tea tree oil, and carvacrol oil, or cationic polymers, namely, poly(ε-lysine) and poly(hexamethylene biguanide). These compounds were mixed into a polymer matrix, coated, and dried to yield durable coatings. Coatings containing up to 7.5% (w/w) of the compounds were assessed in the zone of inhibition and biofilm assays using Staphylococcus aureus and Pseudomonas aeruginosa, as well as infectivity assays using human coronavirus OC43. Our data demonstrate that a selected combination of additives was able to provide a 5-log reduction in the colony-forming units of both bacteria and a 4-log reduction in viral infectivity. This simple but highly effective technology is expected to find applications in environments such as hospitals, aged care facilities, or public transport.
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AIMS: To determine the associations between COVID-19 school closures and school readiness skills for Chinese kindergarteners. DESIGN: We utilized the natural experimental condition created by local COVID-19 outbreaks in 2022 (Study 1) to compare school readiness skills of children whose kindergartens were closed for 5 months (Group 1) with children whose kindergartens stayed open (Group 2). We further compared the school readiness skills of one pre-COVID-19 cohort (Cohort 2019) with one COVID-19 cohort (Cohort 2021) from a fifth kindergarten (Study 2). SAMPLES: For Study 1, Group 1 included 445 children and Group 2 included 584 children aged 4-6 years. For Study 2, Cohort 2019 included 156 children and Cohort 2021 included 228 children aged 3-6 years. MEASURES: For both studies, survey data on four school readiness skills were collected from parents. Additionally, Study 1 collected parental locus of control data from parents. RESULTS: Controlling for covariates, Study 1 revealed that Group 1 and Group 2 did not differ in terms of language and emergent literacy or approaches to learning. However, Group 1 scored lower than Group 2 on health and well-being and arts and imagination. Study 2 revealed that Cohort 2021 scored higher than Cohort 2019 on language and emergent literacy but lower on the other three skills. CONCLUSIONS: The associations of COVID-19 school closures with Chinese children's school readiness skills were not uniform, with a positive relation with language and emergent literacy and negative associations with health and well-being, approaches to learning, as well as arts and imagination.
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COVID-19 , Instituições Acadêmicas , Humanos , Criança , Masculino , Feminino , Pré-Escolar , China , Desenvolvimento Infantil/fisiologia , Alfabetização , Estudantes/psicologia , Estudos de Coortes , População do Leste AsiáticoRESUMO
PURPOSE: We tested the role of age and sex in surgery following pediatric TBI hospitalization. METHODS: Records of 1745 children hospitalized at a pediatric neurotrauma center in China included age, sex, cause of injury, diagnosis of injury, days of hospitalization, in-house rehabilitation, Glasgow Coma Scale score, mortality, 6-month post-discharge Glasgow Outcome Scale score, and surgery intervention. The children were 0-13 years (M= 3.56 years; SD = 3.06), with 47.4% 0-2 years of age. RESULTS: The mortality rate was 1.49%. Logistic regression on 1027 children with epidural hematoma, subdural hematoma, intracerebral hemorrhage, and intraventricular hemorrhage showed that controlling for other variables, the odds for younger children to receive surgery was statistically lower for epidural hematomas (OR = 0.75; 95% CI = 0.68-0.82), subdural hematomas (OR = 0.59; 95% CI = 0.47-0.74), and intraventricular hemorrhage (OR = 0.52; 95% CI = 0.28-0.98). CONCLUSIONS: While severity of TBI and type of TBI were expected predictors for surgery, a younger age also predicted a significantly lower likelihood of surgery in our sample. Sex of the child was unrelated to surgical intervention.
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Lesões Encefálicas Traumáticas , Hematoma Epidural Craniano , Criança , Humanos , Assistência ao Convalescente , População do Leste Asiático , Alta do Paciente , Hematoma Epidural Craniano/cirurgia , Hematoma Epidural Craniano/etiologia , Hematoma Subdural/complicações , Hemorragia Cerebral/complicações , Escala de Coma de Glasgow , Hospitais , Estudos Retrospectivos , Lesões Encefálicas Traumáticas/complicaçõesRESUMO
BACKGROUND: Long-term child-parent relationship quality following hospitalization for pediatric traumatic brain injury (TBI) remains poorly understood. OBJECTIVE: We tested whether current child-parent conflict and closeness were related to the children's history of TBI-related experiences and contemporary child/family characteristics. METHODS: The sample included 202 Chinese children (Boys: 60.4%) with a history of hospitalization for TBI. On average, the children were 11.2 years old (SD = 1.59) and sustained TBI at 8.5 years old (SD = 1.6). TBI-related data were obtained from hospital medical records. Parents provided data on child-parent closeness, child-parent conflict, and parental efficacy 2-4 years (M = 2.7, SD = 0.7) after discharge. RESULTS: Forty-nine children (24.3%) had mild TBI, 139 (68.8%) had moderate TBI, and 14 (6.9%) had severe TBI. Surgical intervention occurred among 128 (63.4%) of the 202 children. Contemporaneous child and family characteristics explained 19% of the variance, history of surgery, length of hospitalization, and recovery status explained another 7%, and the interaction between length of hospitalization and parental efficacy explained another 4% in child-parent conflict. Contemporaneous child and family characteristics explained 29% of the variance, and TBI-related variables explained another 2% in child-parent closeness. CONCLUSION: Post-TBI child-parent relationship was more associated with child/family characteristics than with TBI variables. Practitioners and families should be aware of the long-term challenges to child-parent relationship following hospitalization for pediatric TBI.
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Concussão Encefálica , Lesões Encefálicas Traumáticas , Masculino , Criança , Humanos , Lesões Encefálicas Traumáticas/epidemiologia , Lesões Encefálicas Traumáticas/terapia , Pais , Relações Pais-Filho , HospitalizaçãoRESUMO
Objective: We examined the impact of the strict lockdown on 130 preschool-age children's daily routines and how their routine changes from pre-lockdown were related to child-parent relationship quality during the lockdown. Background: To contain the spread of the COVID-19, the city of Wuhan underwent a strict 76-day lockdown, during which children's routines were drastically altered, yet families did not have a frame of reference to use to determine how changes in children's routines would be related to their family dynamics. Method: Parents provided survey data on the amount of time their children spent daily on learning, screen devices, play and exercise, and nighttime sleep before, during, and after the lockdown. The also described general family functioning, child-parent closeness, and child-parent conflict during the lockdown. Results: The lockdown led to changes in all four routines, but all returned to pre-lockdown level after the lockdown was lifted. Regression analyses showed that decrease in play and exercise time was related to less child-parent closeness, and decrease in learning time and increase in nighttime sleep time were related to more child-parent conflict. Conclusion: Findings suggested changes in the children's play and exercise time, learning time, and nighttime sleep time were related to negative child-parent relationship (i.e., less closeness or more conflict), but favorable general functioning was a protective factor. Implications: Our study highlighted family resilience in restoring the children's routines after the lockdown, as well as family vulnerability during the lockdown, as changes in three of the four routines examined were linked to negative child-parent relationship.
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OBJECTIVE: Research suggests that screen exposure presents a risk for ADHD behaviors in young children. However, the operationalization of screen exposure remains murky and longitudinal data is scarce. In this paper, we examined the relations between better operationalized daily screen time and behaviors of inattention and behaviors of hyperactivity/impulsivity in three cohorts of community samples of young Chinese children. METHOD: Study 1 was longitudinal and included 111 children who were 3.6 years old (Range = 2.4-4.9; SD = 0.4) at Baseline and 4.8 years old (Range = 3.9-6.0; SD = 0.4) at Follow-Up. Study 2 was cross-sectional and included 172 children aged 4.9 years (Range = 3.0-7.1; SD = 1.0). Study 3 was also cross-sectional and included 313 children who were 6.9 years old (Range = 5.7-8.3; SD = 0.4). In each study, the parents reported how much time that their children spent daily on iPad/tablet, smart phone, and online games and watching TV in the previous week, and their children's behaviors of inattention (I/A) and hyperactivity/impulsivity (H/I). RESULTS: Regression analysis revealed that in Study 1, controlling for child demographics, mother's education, family SES, and corresponding I/A or H/I scores at Baseline, screen time at Baseline predicted I/A scores (ß = .27, p < .01) and H/I scores (ß = .32, p < .001) at Follow-Up. Similarly, controlling for covariates, screen time predicted I/A scores (ß = .25, p < .01) and H/I scores (ß = .25, p < .01) in Study 2; I/A scores (ß = 0.16, p < .01) and H/I scores (ß = .15, p < .05) in Study 3. CONCLUSION: Screen exposure was a risk for inattention and hyperactivity/impulsivity behaviors in urban Chinese children.
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Transtorno do Deficit de Atenção com Hiperatividade , Transtorno do Deficit de Atenção com Hiperatividade/diagnóstico , Transtorno do Deficit de Atenção com Hiperatividade/epidemiologia , Criança , Pré-Escolar , China/epidemiologia , Estudos Transversais , Humanos , Pais , Tempo de TelaRESUMO
Research on the role of early relationships with parents on youth's anxiety and depression, especially in collectivist societies such as China, is limited. To fill this gap, we investigated the unique role of early relationship with mothers and fathers, respectively, in Chinese youth's anxiety and depression outcomes. The participants were 347 Chinese college students from 20 provinces. They first separately rated the frequency of experiencing 13 emotions (e.g., anger) from recalling early relationships with their mothers and fathers, then completed the Zung Self-Rating Anxiety Scale and the Zung Self-Rating Depression Scale. Logistic regression was performed to determine the unique contribution of early relationships with mothers and fathers, respectively, to the participants' clinical-level anxiety and depression. Based on the final model of our logistical regression, we found that an increase in negative affective representation of early relationship with the mother was associated with a higher likelihood of clinical level anxiety (OR = 3.58; 95% CI = 1.32-9.70), while an increase in positive affective representation of early relationship with the mother was associated with a lower likelihood of clinical-level depression (OR = 0.47; 95% CI = 0.25-0.87). Furthermore, an increase in negative affective representation of early relationship with the father was associated with a higher likelihood of clinical-level anxiety (OR = 3.36; 95% CI = 1.37-8.26) and depression (OR = 3.68; 95% CI = 1.59-8.52), above and beyond their affective representation of early relationship with the mother.
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Ansiedade , Depressão , Adolescente , Ansiedade/psicologia , Depressão/psicologia , Emoções , Pai/psicologia , Feminino , Humanos , Masculino , Mães/psicologia , Pais/psicologiaRESUMO
BACKGROUND: Attention-deficit hyperactivity disorder (ADHD) is a risk for learning. Because ADHD commonly includes behaviours of inattention and behaviours of hyperactivity/impulsivity, how the two types of behaviours independently affect children's academic competence remains poorly understood. AIMS: To investigate the impact of behaviours of inattention and behaviours of hyperactivity/impulsivity on Chinese students' academic competence. SAMPLES: Parents of 167 preschoolers (Cohort 1), parents of 313 first graders (Cohort 2), and 1,003 high school students (Cohort 3). METHODS: The ADHD-RS-IV Preschool version (Cohort 1), ADHD-RS-IV Home version (Cohort 2), and BASC-SRP (Cohort 3) were used to measure behaviours of inattention and hyperactivity/impulsivity. Academic competence was operationalized as school readiness (Cohort 1), math and language arts scores at two time points provided by school (Cohort 2), and self-reported academic performance (Cohort 3). Multiple regressions were performed to investigate the relationship between academic performance and behaviours of inattention alone (Step 1), and behaviours of hyperactivity/impulsivity alone (Step 2), and behaviours of inattention together with behaviours of hyperactivity/impulsivity (Step 3). RESULTS: For each cohort, both types of behaviours were negatively correlated with academic competence. However, regression analyses showed that in Step 3, behaviours of hyperactivity/impulsivity either failed to predict academic competence or predicted better academic competence. Overall, behaviours of inattention alone accounted for a similar amount of variance in academic competence as did behaviours of inattention and hyperactivity/impulsivity combined. CONCLUSIONS: Behaviours of inattention presented a risk for academic competence but the effect of behaviours of hyperactivity/impulsivity varied. Implications for instructional strategies for behaviours of inattention were discussed.
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Transtorno do Deficit de Atenção com Hiperatividade , Criança , Pré-Escolar , Estudos de Coortes , Humanos , Comportamento Impulsivo , Pais , EstudantesRESUMO
In this article, we tested if female adopted Chinese youth's sense of exclusion predicted their behavioral adjustment and mental disorder diagnoses concurrently (Study 1) and longitudinally 5 years later (Study 2). In Study 1, 224 adoptees (M = 13.6 years, SD = 2.1) provided survey data on sense of exclusion (as indexed by ethnic marginality, ethnic identity search, and negative feelings toward adoption) and Internalizing Problems (i.e., anxiety, withdrawal, and somatic complaints), measured with the Child Behavior Checklist (CBCL)-Youth Self-Report. In Study 1, the adoptive parents additionally completed the CBCL parent-report on the adopted children's Internalizing Problems and reported if the adopted children had any mental disorder diagnoses. In Study 2, 60 youth from Study 1 (M = 18.6 years, SD = 2.1) completed the 3rd edition of the Behavioral Assessment System for Children-Self Report of Personality (BASC-3-SRP) that measures School Problems (i.e., negative attitudes toward teacher, negative attitudes toward school, and sensation seeking), Internalizing Problems (i.e., atypicality, locus of control, social stress, anxiety, depression, sense of inadequacy, and somatization), Attention-Deficit/Hyperactivity Disorder (ADHD; i.e., inattention and hyperactivity), and Personal Adjustment (i.e., relations with parents, peer relations, self-esteem, and self-reliance). They also responded to questions on receiving mental disorder diagnoses and treatments. We found that in Study 1, 33.2% of the youth had at least one diagnosis, with Anxiety Disorder (21.4%), ADD/ADHD (16.7%), and Attachment Disorder (7.5%) being the top three disorders. In Study 2, 40.3% had at least one diagnosis, with Anxiety Disorder (25.0%), Depression (21.7%), and ADD/ADHD (16.7%) being the top three disorders. Path analyses showed that in Study 1, ethnic marginality and negative feelings about adoption, but not ethnic identity search, significantly predicted parent-reported and self-reported Internalizing Problems; in Study 2, none of the three indicators of sense of exclusion predicted the adopted youth's adjustment. Implications for clinical practice and future research were discussed. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
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Transtorno do Deficit de Atenção com Hiperatividade , Adolescente , Transtornos de Ansiedade , Criança , China , Feminino , Humanos , Pais , Inquéritos e Questionários , Estados UnidosRESUMO
Factor mixture modeling (FMM) has been increasingly used to investigate unobserved population heterogeneity. This study examined the issue of covariate effects with FMM in the context of measurement invariance testing. Specifically, the impact of excluding and misspecifying covariate effects on measurement invariance testing and class enumeration was investigated via Monte Carlo simulations. Data were generated based on FMM models with (1) a zero covariate effect, (2) a covariate effect on the latent class variable, and (3) covariate effects on both the latent class variable and the factor. For each population model, different analysis models that excluded or misspecified covariate effects were fitted. Results highlighted the importance of including proper covariates in measurement invariance testing and evidenced the utility of a model comparison approach in searching for the correct specification of covariate effects and the level of measurement invariance. This approach was demonstrated using an empirical data set. Implications for methodological and applied research are discussed.
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OBJECTIVE: To evaluate the neglect of left-behind children (LBC) in China. METHOD: Participants: Children separated from one or both parents for at least 6 months. Intervention: Trauma of separation. Comparison: Non-left-behind children (NLBC). Outcomes: Neglect rates and severity. Only case-control studies were included. RESULTS: Thirteen studies were included; there were 18,688 LBC in a large sample (N = 42,003) of children aged 0-18 years in China. The overall neglect rate was significantly higher in LBC compared to NLBC (odds ratio [OR] = 1.58, 95% confidence interval [CI] = [1.50, 1.67], p < .01) based on the Chinese Rural Child Neglected Evaluation Model (CRCNEM) and the Parents-Child Conflict Tactics Scales (OR = 1.44, 95% CI [1.35, 1.54], p < .01). The overall neglect severity in LBC was also significantly higher than NLBC (SMD = 0.31, 95% CI [0.28, 0.33], p < .01). The same trends were observed in sex subgroups. With regard to subtypes, LBC were significantly more likely to have emotional neglect (OR = 2.29, 95% CI [1.88, 2.78], p < .01), medical neglect (OR = 1.79, 95% CI [1.62, 1.98], p < .01), physical neglect (OR = 1.75, 95% CI [1.60, 1.91], p < .01), security neglect (OR = 1.52, 95% CI [1.32, 1.75], p < .01), educational neglect (OR = 1.50, 95% CI [1.31, 1.72], p < .01), and social neglect (OR = 1.33, 95% CI [1.18, 1.51], p < .01). Furthermore, LBC had significantly higher severity in medical neglect (SMD = 0.31, 95% CI [0.27, 0.35], p < .01), emotional neglect (SMD = 0.28, 95% CI [0.24, 0.32], p < .01), physical neglect (SMD = 0.24, 95% CI [0.18, 0.29], p < .01), security neglect (SMD = 0.26, 95% CI [0.23, 0.29], p < .01), educational neglect (SMD = 0.25, 95% CI [0.20, 0.31], p < .01), and social neglect (SMD = 0.25, 95% CI [0.10, 0.40], p < .01). CONCLUSION: The neglect rates and severity in LBC in China were both significantly higher than those in NLBC. There was a strong association between neglect and LBC. Public policy changes are urgently needed to improve the dire situation and the well-being of the LBC.
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Pais , População Rural , Criança , China/epidemiologia , Estudos Transversais , Humanos , Inquéritos e QuestionáriosRESUMO
In this article, we used results from two studies to show the need to go beyond linguistic equivalence to establish construct validity and measurement invariance in cross-cultural research. Study 1 examined Rosenberg Self-Esteem (RSE; 10 items) data from 156 Mainland Chinese youth (M = 13.8 years, SD = .53) and 213 Chinese-American youth (M = 13.6 years, SD = 2.1) from high socioeconomic status (SES) families. The Chinese translation of the RSE has been widely used. Study 2 included 1060 Mainland Chinese youth (M = 15.6 years, SD = 2.3) and 412 racially diverse American youth (M = 16.0, SD = 2.9) from all SES backgrounds. Data were collected with the third and newest edition of the Behavioural Assessment System for Children-Self Report of Personality (BASC-3-SRP; 189 items). We translated and back-translated the BASC-3-SRP between English and Chinese to establish linguistic equivalence. All participants were females. Study 1 showed that the RSE had acceptable internal consistency but lacked construct validity. Study 2 showed that the original and the translated BASC-3-SRP had good internal consistency and construct validity, but nine of its 16 subscales lacked measurement invariance. These results highlight measurement issues facing international and cross-cultural research.
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Comparação Transcultural , Psicometria/métodos , Adolescente , China , Feminino , Humanos , Masculino , Reprodutibilidade dos Testes , Estados UnidosRESUMO
BACKGROUND: Controversy persists in the treatment of high-grade spondylolisthesis (HGS). Surgery is recommended in patients with intrusive symptoms and evidence debates the competing strategies. This study compares the radiologic outcomes and postoperative complications at a minimum of 2 years follow-up for patients with HGS treated with instrumented fusion with partial reduction (IFIS) with those treated with reduction, decompression, and instrumented fusion (RIF). We hypothesize that IFIS leads to a lower rate of complication and revision surgery than RIF. METHODS: A retrospective comparative methodology was used to analyze consecutive HGS treated surgically between 2006 and 2017. Patients diagnosed with ≥grade 3 spondylolisthesis treated with arthrodesis before the age of 18 years with a minimum of 2 years follow-up were included. Patients were excluded if surgery did not aim to achieve arthrodesis or was a revision procedure. Cases were identified through departmental and neurophysiological records. RESULTS: Thirty patients met the inclusion criteria. Mean follow-up was 4 years. Ten patients underwent IFIS and the remaining 20 underwent RIF. The 2 groups showed no difference in demographics, grade of slip, deformity or presenting symptoms. Of 10 treated with IFIS, the SA reduced by a mean of 10 degrees and C7 sagittal vertical line changed by 31 mm. In the RIF cohort, SA reduced by 16 degrees and C7 sagittal vertical line reduced by 26 mm. PT was unchanged in both groups. In IFIS cohort, 2 patients showed postoperative weakness, resolved by 2 years. None required revision surgery. In the RIF group, 4 sustained dural tears and 1 a laminar fracture, 7 showed postoperative weakness or dysaesthesia, 3 of which had not resolved by 2 years. Eight patients underwent unplanned further surgery, 3 for pseudarthrosis. CONCLUSIONS: RIF and IFIS show similar radiologic outcomes. RIF shows a higher rate of unplanned return to surgery, pseudarthrosis and persisting neurological changes. LEVEL OF EVIDENCE: Level III-retrospective comparative study.
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Descompressão Cirúrgica/estatística & dados numéricos , Doenças do Sistema Nervoso/epidemiologia , Complicações Pós-Operatórias/epidemiologia , Fusão Vertebral/estatística & dados numéricos , Espondilolistese/cirurgia , Adolescente , Criança , Estudos de Coortes , Descompressão Cirúrgica/efeitos adversos , Descompressão Cirúrgica/métodos , Humanos , Vértebras Lombares/cirurgia , Doenças do Sistema Nervoso/etiologia , Complicações Pós-Operatórias/etiologia , Pseudoartrose , Reoperação , Estudos Retrospectivos , Fusão Vertebral/efeitos adversos , Fusão Vertebral/métodos , Resultado do TratamentoRESUMO
Global trends increasingly appear to be legitimizing same-gender relationships, yet international research shows that despite statutory rights to marry-and by extension, adopt children-same-gender couples continue to experience difficulties when trying to adopt. Primary among these barriers are the persistent heteronormative beliefs, which strongly underpin the unfounded myths about parenting abilities of same-gender couples. Such biased beliefs are perpetuated by some adoption professionals who oppose placing children with lesbian or gay couples. In 2013, New Zealand passed the Marriage Equality Act, making it possible for same-gender couples to legally marry-and by extension, adopt. This provided an opportunity to investigate the perceptions of New Zealand professionals about children being placed with same-gender couples, in a country often perceived to be more tolerant of LGBT people. New Zealand social workers and lawyers (an under-studied group)-the professions most likely involved in adoption-were recruited via professional bodies. Because studying perceptions and beliefs on socially sensitive topics are highly susceptible to social desirability, we designed an instrument utilizing multiple methods to assess and corroborate participants' views about placing children for adoption with couples of the same gender. Administered online and anonymously, the survey included demographic questions, evaluation of negative-meaning and positive-meaning statements, and used a scenario describing a prospective adoptive couple whose gender was ambiguous, in the context of adopting children of varying needs. Overall, the study found that while New Zealand lawyers and social workers (N = 314) had generally favorable views of gay and lesbian adoption, they still reported a preference to see children adopted by heterosexual couples over same-gender couples, within which lesbian and gay couples were preferred equally. Moreover, being religious and politically conservative were characteristics associated with more negative views toward placing children with same-gender couples. We conclude that, despite winning the rights to marry (and adopt as couples), such legislative wins might be merely the first hurdle to be overcome; normalizing same-gender parenting is what needs to happen next. Our study adds to the research focused on adoption professionals in various countries, with the ultimate aim to inform practices and policies supportive of families headed by same-gender couples and formed through adoption.
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Existing research suggests that parental absence per se does not have a main effect on children's cognitive development. However, this body of research is confounded by decreased family finance resulted from parental absence. Further insights on children's cognitive development can be gained by studying situations where parental absence actually leads to higher family finance. China's rural left-behind children (LBC) are uniquely suited for this purpose because of their extended separation from parents who migrated to work for better family finance. The participants were 74 LBC (M = 9.99 years, SD = 2.66) whose parents both migrated away for work within six months of their births and 74 non-left-behind children (NLBC) (M = 10.03 years, SD = 2.58) of similar backgrounds but whose parents never migrated. We used the 4th Edition of the Wechsler Intelligence Scale for Children (WISC-IV) to individually collected data on the children's Verbal Comprehension (which includes Similarities, Vocabulary, and Comprehension subtests), Perceptual Reasoning (which includes Block Design, Picture Concepts and Matric Reasoning subtests), Working Memory (which includes Digit Span and Letter-Number Sequencing subtests), and Processing Speed (which includes Coding and Symbol Search subtests). We found that the LBC scored lower than the NLBC on the language Comprehension and Vocabulary subtests of the Verbal Comprehension Index (Cohen's d = 0.41; p = .01). Subsequent General Linear Modeling analyses revealed that for the Comprehension subtest: (1) dual-parental absence significantly and negatively predicted Comprehension scores and (2) monthly family income significantly and positively predicted Comprehension scores for the LBC but not for the NLBC. For Vocabulary subtest, only dual-parental absence was significant. Overall, these results offer a deeper understanding on the effect of dual parental absence and changes in family finance on different domains of children's cognitive development.
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Divórcio , Pais , Criança , Compreensão , Humanos , Lactente , População Rural , Escalas de WechslerRESUMO
The co-occurrence of behaviors of attention-deficit/hyperactivity disorder (ADHD) with behaviors of anxiety or behaviors of depression is the norm, but little is known on how the co-occurrence accounted for youths' peer relations. The authors report results on difficult peer relations in relation to behaviors of ADHD, co-occurring behaviors of depression, and behaviors of anxiety from three studies on 862 youths in China and in the United States. Study 1 included 313 ethnically and socioeconomically diverse American youths; Study 2 included 250 youths who were adopted out of Chinese orphanages by American parents; and Study 3 included 299 youths from Beijing, China. Data on difficult peer relations and behaviors of ADHD, depression, and anxiety were collected with the third edition of Behavior Assessment System for Children-Self Report of Personality. In all three studies, each type of problems alone significantly predicted difficult peer relations, but behaviors of ADHD were not significant when co-occurring behaviors of depression or co-occurring behaviors of anxiety were considered. Despite that the youths in our study had different cultural and personal backgrounds, there was no evidence that behaviors of ADHD were detrimental to youths' peer relations when behaviors of depression or anxiety were considered. Implications for intervention were discussed.
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Ansiedade/complicações , Transtorno do Deficit de Atenção com Hiperatividade/complicações , Depressão/complicações , Adolescente , Adulto , Povo Asiático , Criança , Comportamento Infantil , China , Feminino , Humanos , Masculino , Estados Unidos , Adulto JovemRESUMO
We adopted a person-centered approach to identify maternal feeding profiles among urban Chinese mothers of preschoolers, including two previously unexamined culturally-emphasized practices, and examine the associations between these feeding profiles and child and parent characteristics. Participants included 167 mothers and their preschoolers residing in Shanghai, China. Mothers reported on their feeding beliefs and practices, perceptions of child's body shapes, child dietary intake, and family demographic information. The hierarchical clustering method revealed 3 feeding clusters: uninvolved feeding (35.3%), concerned and restrictive feeding (21.6%), and high-pressure feeding (43.1%). Child BMI, weight status, maternal length of staying in Shanghai, maternal perceptions of child actual body shape and ideal body shape, and child unhealthy dietary intake were significantly different across the three clusters. The person-centered approach allowed for the examination of various feeding beliefs and practices simultaneously and revealed patterns of maternal feeding in Chinese families with preschoolers. Our oversampling of underweight and overweight groups of children in the present study allowed for the derivation of feeding profiles across children in all weight status groups. Moreover, the examination of whether demographic, maternal body shape perceptions, and child dietary intake differed across the clusters of mothers provided a more complete picture of family context and processes that may underlie and contribute to mothers' feeding practices, and ultimately their children's weight.
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Mães , Magreza , Índice de Massa Corporal , Peso Corporal , Criança , China , Comportamento Alimentar , Feminino , Humanos , Sobrepeso/epidemiologiaRESUMO
Although symptoms of anxiety often coexist with symptoms of depression, little is known on how such coexistence affects youth's school experiences. OBJECTIVES: We tested how the two types of behaviors, when coexisting, were associated with youth's negative attitude toward teachers, school, and poor peer relations. METHOD: Data were collected from 203 ethnically and socioeconomically diverse youth (male: 24.6%; mean = 15.8 years, standard deviation = 2.4) with the 3rd edition of the Behavioral Assessment for Children: Self-Report of Personality. RESULTS: Scores for symptoms of depression alone explained negative attitude toward teachers (ß = .28; R2 = 17.88%), negative attitude toward school (ß = .27; R2 = 14.74%), and poor peer relations (ß = .42; R2 = 44.60%) as effectively as scores for both types of behaviors did. CONCLUSION: The coexistence of symptoms of anxiety and depression did not appear to impair youth's attitude toward teachers, school and peer relations more than symptoms of depression did alone.
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Ansiedade/complicações , Atitude , Depressão/complicações , Estudantes/psicologia , Adolescente , Ansiedade/epidemiologia , Criança , Estudos Transversais , Depressão/epidemiologia , Feminino , Humanos , Relações Interpessoais , Masculino , Grupo Associado , Professores Escolares , Instituições Acadêmicas , Adulto JovemRESUMO
In this study, we have proposed a novel solvent-based method using a specific concentration of 3M™ Novec™ HFE-72DE and 7200 solvents to untangle duct tape from porous article with minimal impact to the quality of latent fingerprint deposited on the sticky-side surface of duct tape. A series of experiments determined that a mixture of 30% HFE-72DE:7200 (v/v) was found to be the most effective to separate various brands of duct tape from different types of porous surface, including office copy paper, newspaper, cardboard, and tissue wipe, which had been stored for up to 30 days before untangling. Further studies also revealed that 30% HFE-72DE:7200 was compatible with three common fingerprint development methods for porous articles, namely ninhydrin, indanedione-zinc, and physical developer. The nonflammability and low toxicity nature of this novel solvent mixture also make it ideal for separating duct tape from porous surface in laboratory or at crime scene.