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1.
Rev. psicol. clín. niños adolesc ; 10(1): 9-19, Enero 2023. tab, graf
Artigo em Inglês | IBECS | ID: ibc-214140

RESUMO

Conduct problems (CP) constitute a major field for child clinical psychology, in terms of not only prevalence, but also developmental, social, andclinical relevance. This study carried out an umbrella review of meta-analyses on the efficacy of treatment/indicated prevention of child CP (meanage range up to 12 years). Following a registered protocol, several databases (i.e., Web of Science, PsycINFO, PROSPERO, and The CochraneLibrary) were searched for meta-analyses published from January 2002 to March 2022. Nine meta-analytic publications met the required criteria, andthe main characteristics and findings of the studies were systematically described. Weighted effect sizes (ESs) were calculated through RStudioprogram. Analyses of heterogeneity, publication bias, quality (AMSTAR-2), and credibility were also conducted. Results indicate that parent traininghas been the most studied intervention, with a weighted ES of d = -0.49 (95% CI -.67 to -.32). The reviewed studies identified several moderatorsfor the efficacy of parent training, including individual (severity of CP), family (financial disadvantage), and intervention (delivery format) characteristics. Results from child-centered play therapy were also analyzed, d = -.34 (95% CI -.40 to -.28), but the reduced number of meta-analyses andthe weakness detected by quality assessment suggest the need of cautiously considering the pooled effects. In general, evidence seems to besuggestive of the efficacy of treatment of CP, particularly for parent training. Nevertheless, efficacy seems to be moderate, heterogeneity indexesare high, and quality assessments of meta-analyses are often suboptimal. This study suggests several avenues to strengthen knowledge in this field. (AU)


Los problemas de conducta (PC) son un foco prioritario de atención en la psicología clínica infantil. Este estudio presenta una revisión umbrella de meta-análisis sobre la eficacia del tratamiento/prevención indicada de los PC infantiles (rango de edad media hasta 12 años). Siguiendo un protocoloregistrado, se buscaron meta-análisis (enero 2002 a marzo 2022) en Web of Science, PsycINFO, PROSPERO y The Cochrane Library. Nuevemeta-análisis cumplieron con los criterios requeridos y sus características y hallazgos fueron descritos sistemáticamente; además, con RStudiose calcularon los tamaños del efecto (TEs) ponderados. Se realizaron análisis de heterogeneidad, sesgo de publicación, calidad (AMSTAR-2) ycredibilidad. El entrenamiento parental fue la intervención más estudiada, con un TE medio ponderado de d = -.49 (IC del 95%: -.67 a -.32), y seidentificaron diversos moderadores de eficacia, incluyendo características individuales (gravedad de los PC), familiares (desventaja económica) yde intervención (formato de administración). También se analizaron los resultados de la terapia de juego centrada en el niño, d = -.34 (IC del 95%:-.40 a -.28), pero el reducido número de meta-análisis y la debilidad detectada por la evaluación de la calidad sugieren la necesidad de considerarcon cautela los efectos agrupados. En general, la evidencia es sugestiva de eficacia del tratamiento de los PC, específicamente del entrenamientoparental. No obstante, la eficacia parece ser moderada, los índices de heterogeneidad elevados y las evaluaciones de calidad de los meta-análisisno suelen ser óptimas. Este estudio sugiere varias vías para reforzar el conocimiento en este campo. (AU)


Assuntos
Humanos , Criança , Comportamento Problema/psicologia , Comportamento Infantil/psicologia , Avaliação de Resultado de Intervenções Terapêuticas , Metanálise como Assunto
2.
Artigo em Inglês | MEDLINE | ID: mdl-36613134

RESUMO

This study aimed to examine the associations between parental mindfulness and preschool child behavior problems and to investigate the mediating role of marital satisfaction and coparenting in the relationship between mindfulness and preschool child behavior problems. This was a cross-sectional study in which general sociodemographic data were obtained from 3448 parents of children in grades junior to senior of kindergarten who were assessed using instruments such as the Mindful Attention Awareness Scale (MAAS), the Strengths and Difficulties Questionnaire (SDQ), the ENRICH Marital Satisfaction Scale (TEMSS), and the Parents' Perceptions of the Coparenting Relationship Questionnaire (PPCR). (1) Mindfulness, preschool child behavior problems, marital satisfaction, and coparenting were significantly correlated with each other, where mindfulness was positively correlated with marital satisfaction and coparenting and significantly negatively correlated with preschool child behavior problems. (2) Mindfulness negatively predicted preschool children's problem behaviors. (3) Marital satisfaction independently mediated the relationship between mindfulness and preschool child behavior problems. (4) Coparenting also independently mediated the relationship between mindfulness and preschool child behavior problems. (5) Marital satisfaction and coparenting play a chain-mediating role between mindfulness and preschool children's problem behaviors. Mindfulness predicted preschool child behavior problems, with marital satisfaction and coparenting as mediators.


Assuntos
Atenção Plena , Comportamento Problema , Humanos , Pré-Escolar , Criança , Estudos Transversais , Poder Familiar , Atenção , Comportamento Infantil
3.
Artigo em Inglês | MEDLINE | ID: mdl-36613202

RESUMO

The literature has mainly focused on the impact of the negative aspects of the couple's relationship on the toddler's internalizing and externalizing problems. This study explored the impact of the positive and negative dimensions of the couple's relationship during the transition to parenthood on toddlers' psychological adjustment, considering the concurrent impact of the couple's relationship at 30 months postpartum. The sample comprised 115 mothers and fathers (N = 230) recruited during the 1st trimester of pregnancy. The mothers and fathers individually completed a measure of the couple's relationship (Relationship Questionnaire) during the first trimester of pregnancy, at 3 and 30 months postpartum, and the Child Behavior Checklist 1.5-5 at 30 months postpartum. Multiple linear regressions, cluster analyses, and univariate and multivariate analyses of variance were conducted. The positive dimension at the 1st trimester of pregnancy and the negative dimension of the couple's relationship at 3 months postpartum were the strongest predictors of the toddler's internalizing problems, while the negative dimension at 3 months postpartum and the positive dimension of the couple's relationship at 30 months postpartum were the strongest predictors of the toddler's externalizing problems. Two patterns of the couple's relationship (adjusted vs. non-adjusted) during the transition to parenthood were identified. Higher levels of internalizing and externalizing problems were found in toddlers from couples with a non-adjusted couple's relationship. Findings suggested the impact of both positive and negative dimensions of the couple's relationship during the transition to parenthood on the toddler's emotional and behavioral problems. Promoting the couple's relationship adjustment during the transition to parenthood can help to prevent toddlers' emotional and behavioral problems.


Assuntos
Comportamento Problema , Feminino , Gravidez , Humanos , Pré-Escolar , Emoções , Mães/psicologia , Período Pós-Parto/psicologia , Primeiro Trimestre da Gravidez
5.
Artigo em Inglês | MEDLINE | ID: mdl-36674091

RESUMO

With the acceleration of China's industrialization and urbanization, there is a large number of left-behind children in China who are reported with more challenges in development. The study aims to analyze the differences in family socioeconomic status (SES) and discrimination perception between left-behind children and non-left-behind children and further explore whether SES or discrimination perception has a greater impact on the problem behaviors of left-behind children. We found the family SES of left-behind children was significantly lower than that of non-left-behind children; left-behind children's perceived discrimination was significantly higher than that of non-left-behind children; perceived discrimination of left-behind children had a greater impact on their problem behavior than the family SES.


Assuntos
Comportamento Problema , Humanos , Criança , Discriminação Percebida , Classe Social , China , População Rural
6.
J Sch Psychol ; 96: 12-23, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36641221

RESUMO

School dropout can be an ongoing process of academic failure and disengagement starting as early as elementary school. Given the multitude of factors involved and the importance of early identification of vulnerabilities, this study examined whether (a) initial levels of conduct problems and depressive symptoms predicted school dropout, (b) the rate of change in conduct problems and depressive symptoms predicted dropout, (c) the interaction between trajectories of conduct problems and depressive symptoms affected the likelihood of dropout, and (d) whether there were sex differences in these associations. Using a dataset of 364 children ages 6-9 (T1) years who had displayed conduct problems, mean trajectories of conduct problems and depressive symptoms over 6 years were drawn using parallel process latent growth curve modeling. Results showed that both the initial levels of and rate of change in conduct problems predicted dropout, whereas trajectories of depressive symptoms did not. The interaction between trajectories of conduct problems and depressive symptoms was non-significant and sex differences were not observed. These results suggest that, for boys and girls presenting early conduct problems, although a higher initial levels of conduct problems increases the risk of school dropout, a larger decrease in these problems over time may reduce this likelihood. Recognizing and treating conduct problems consistently may be crucial in reducing the risk of dropout in children with early-onset issues.


Assuntos
Depressão , Comportamento Problema , Criança , Humanos , Masculino , Feminino , Depressão/diagnóstico , Evasão Escolar , Estudos Longitudinais , Instituições Acadêmicas
7.
BMC Psychol ; 11(1): 19, 2023 Jan 24.
Artigo em Inglês | MEDLINE | ID: mdl-36694224

RESUMO

BACKGROUND: The Home and Community Social Behavior Scales (HCSBS) is a rating scale that assesses social competence and antisocial behavior among children and youths between ages 5-18. The present study aimed to investigate the psychometric properties of the HCSBS by applying item response theory (IRT). METHODS: The HCSBS was completed by parents of 551 Norwegian children refereed to three independent interventions towards problem behaviors. Data used in this study was collected before the interventions started. IRT was carried out in R version 4.0.0 to investigate HCSBS items, subscales and main scales. RESULTS: The results showed that the two-dimensional IRT models for social competence and antisocial behavior were the most appropriate. The measurement precision of the scales was high for a large range of the latent spectrum, and estimated reliabilities were satisfactory. Model evaluations indicated that the overall model fit for the scales were acceptable, but some misfit existed with respect to specific item pairs. CONCLUSION: The results indicate that the HCSBS is a reliable measurement instrument although there is still a potential for improvement by revising some of the items.


Assuntos
Comportamento Problema , Habilidades Sociais , Adolescente , Humanos , Criança , Pré-Escolar , Transtorno da Personalidade Antissocial , Comportamento Social , Psicometria/métodos , Inquéritos e Questionários , Reprodutibilidade dos Testes
10.
Environ Res ; 216(Pt 4): 114759, 2023 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-36370819

RESUMO

BACKGROUND: Epidemiological study findings are inconsistent regarding associations between prenatal polycyclic aromatic hydrocarbon (PAH) exposures and childhood behavior. This study examined associations of prenatal PAH exposure with behavior at age 4-6 years in a large, diverse, multi-region prospective cohort. Secondary aims included examination of PAH mixtures and effect modification by child sex, breastfeeding, and child neighborhood opportunity. METHODS: The ECHO PATHWAYS Consortium pooled 1118 mother-child dyads from three prospective pregnancy cohorts in six U.S. cities. Seven PAH metabolites were measured in prenatal urine. Child behavior was assessed at age 4-6 using the Total Problems score from the Child Behavior Checklist (CBCL). Neighborhood opportunity was assessed using the socioeconomic and educational scales of the Child Opportunity Index. Multivariable linear regression was used to estimate associations per 2-fold increase in each PAH metabolite, adjusted for demographic, prenatal, and maternal factors and using interaction terms for effect modifiers. Associations with PAH mixtures were estimated using Weighted Quantile Sum Regression (WQSR). RESULTS: The sample was racially and sociodemographically diverse (38% Black, 49% White, 7% Other; household-adjusted income range $2651-$221,102). In fully adjusted models, each 2-fold increase in 2-hydroxynaphthalene was associated with a lower Total Problems score, contrary to hypotheses (b = -0.80, 95% CI = -1.51, -0.08). Associations were notable in boys (b = -1.10, 95% CI = -2.11, -0.08) and among children breastfed 6+ months (b = -1.31, 95% CI = -2.25, -0.37), although there was no statistically significant evidence for interaction by child sex, breastfeeding, or neighborhood child opportunity. Associations were null for other PAH metabolites; there was no evidence of associations with PAH mixtures from WQSR. CONCLUSION: In this large, well-characterized, prospective study of mother-child pairs, prenatal PAH exposure was not associated with child behavior problems. Future studies characterizing the magnitude of prenatal PAH exposure and studies in older childhood are needed.


Assuntos
Hidrocarbonetos Policíclicos Aromáticos , Efeitos Tardios da Exposição Pré-Natal , Comportamento Problema , Gravidez , Masculino , Feminino , Pré-Escolar , Humanos , Criança , Idoso , Hidrocarbonetos Policíclicos Aromáticos/toxicidade , Estudos Prospectivos , Efeitos Tardios da Exposição Pré-Natal/induzido quimicamente , Efeitos Tardios da Exposição Pré-Natal/epidemiologia , Estudos de Coortes
11.
Infant Behav Dev ; 70: 101801, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36525798

RESUMO

Supportive parent emotion socialization has been associated with greater child emotion understanding and expression and lower levels of externalizing behavior problems, with limited understanding on parent emotion socialization in toddlerhood. The current study examined the developmental trajectory of emotion socialization via emotion talk in mothers of toddlers from a predominantly Latine sample. Participants were 101 mother-toddler dyads assessed over three time points from ages 12-25 months. Overall, maternal emotion talk remained relatively stable over time, although there was a significant decrease between the first and second assessments before returning to initial rates at the third assessment. Maternal emotion talk did not predict child externalizing behavior over time. Interestingly, however, greater toddler externalizing behavior problems was associated with an increase in maternal emotion talk over time. These findings suggest maternal emotion talk is relatively stable for parents of children who are low on externalizing behaviors and may fluctuate (i.e., slowly increase) for mothers of children who are high in externalizing behaviors. Understanding these mechanisms further could help inform how we implement and personalize parenting interventions.


Assuntos
Mães , Comportamento Problema , Feminino , Humanos , Pré-Escolar , Lactente , Mães/psicologia , Relações Mãe-Filho/psicologia , Emoções , Poder Familiar/psicologia , Comportamento Problema/psicologia , Socialização
13.
Res Dev Disabil ; 132: 104392, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36493738

RESUMO

BACKGROUND: Children with autism spectrum disorder (ASD) receive a wide range of services. AIMS: To examine the association between behavioural services received by children with ASD between ages 2 and 5 years and outcomes during primary school years. METHODS: A total of 414 preschool-aged children diagnosed with ASD were enrolled at five Canadian sites and were assessed within four months of diagnosis (T1), six months later (T2), 12 months later (T3), at school entry (T4), and then annually (T5-T8) to 11 years of age. The association between the receipt of behavioural services during T1 to T3 and T8 outcomes related to adaptive behaviour and behavioural problems was modelled using linear regressions adjusted for immigrant status, family income, child's age at diagnosis, site, sex assigned at birth, and baseline (T1) outcome. RESULTS: Children who received behavioural services during at least one time period from T1 to T3 did not have significantly different outcomes at T8 than children who did not receive any behavioural services. IMPLICATIONS: Pre-school use of behavioural services was not found to affect outcomes during later childhood. Numerous challenges accompany studies of the association between pre-school service use and later outcomes in a heterogeneous ASD sample. Recommendations for study design are provided.


Assuntos
Transtorno do Espectro Autista , Comportamento Problema , Recém-Nascido , Humanos , Pré-Escolar , Criança , Canadá , Adaptação Psicológica , Projetos de Pesquisa
14.
Addict Behav ; 136: 107496, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36174423

RESUMO

There is some uncertainty on how to best conceptualise and measure problem gambling and debate as to whether it is helpful to differentiate the behavioral features of problematic gambling from the negative consequences of gambling. The current study explores this issue by examining the factor structure of a commonly-used problem gambling measure, the Problem Gambling Severity Index (PGSI), as administered to respondents in the 2018 Northern Territory Gambling Prevalence and Wellbeing Survey (n = 3,740 gamblers). Confirmatory factor analyses revealed a two-factor solution offered significant improvement in fit over the one-factor model. Further, the two factors explained unique variance in the number of gambling-related harms experienced by respondents. Although the two factors were highly correlated, the current findings indicate problem gambling behaviors are related to the negative consequences of gambling, but these are not necessarily synonymous. This suggests isolating behavioral and consequential elements of gambling may have utility in public health interventions for gambling that, while concerning, falls below a clinically-significant threshold. Similarly, clinically-oriented research may benefit by measuring the behavioral features, as these components are important targets for individual-level interventions.


Assuntos
Comportamento Aditivo , Jogo de Azar , Comportamento Problema , Comportamento Aditivo/epidemiologia , Análise Fatorial , Jogo de Azar/epidemiologia , Humanos , Prevalência , Inquéritos e Questionários
15.
J Nurs Scholarsh ; 55(1): 253-261, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36583655

RESUMO

BACKGROUND: Nurse managers and team co-workers' disruptive behaviors (DBs) are negatively associated with a perceived safe climate. Moreover, DBs are a risk factor for patients' safety. Yet, it remains unknown whether and to what extent these effects were prevalent in COVID-19 wards and among witnesses of DBs. DESIGN: A cross-sectional study. METHODS: A questionnaire was distributed on social networks and completed by nurses in various Israeli healthcare organizations using snowball sampling between October and December 2021. The questionnaire included seven previously published measures and a question checking whether the participants had worked in a COVID-19 ward. The minimal sample size for any analysis was 236. Hypotheses were tested with correlations and structural equation modeling. RESULTS: DBs of nurse managers and team co-workers toward nurses were higher in COVID-19 teams. As hypothesized, DBs were negatively correlated with a safe climate and positively with patient safety (fewer errors). The data were consistent with a model suggesting that a safe climate is related to fewer DBs and DBs largely mediate the effects of safe climate on errors. Surprisingly and importantly, the strongest predictor of errors, including preventable mortality, is witnessing DBs and not being a victim of DBs. CONCLUSIONS: DBs may impede open communication and collaboration among co-workers, particularly in COVID-19 teams. This study shows the links between nurse shaping of a safe climate, DBs toward nurses, and patient safety. CLINICAL RELEVANCE: Nurse managers who create a safe climate and show zero tolerance for DBs could reduce the risk of errors in care.


Assuntos
COVID-19 , Comportamento Problema , Humanos , Segurança do Paciente , Estudos Transversais , COVID-19/epidemiologia , Inquéritos e Questionários
16.
Child Abuse Negl ; 130(Pt 2): 105308, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-34544592

RESUMO

BACKGROUND: A high incidence of Reactive Attachment Disorder (RAD) and Disinhibited Social Engagement Disorder (DSED) has been reported for children with experiences of trauma and other forms of adversity. OBJECTIVE: The present study aims to explore symptoms of RAD and DSED in children in two protection alternatives (international adoption and residential care) after experiences of early adversity. PARTICIPANTS AND SETTING: The participants were 146 children: 40 children adopted into Spanish families from Russia, 49 children in residential care in Spanish institutions (40.8% in long-term foster centers) and 57 community comparison children. METHODS: The Relationship Problems Questionnaire was used to explore both RAD and DSED. All adoptive parents and institutional caregivers retrospectively reported the problems at time of placement (Wave 0), as well as the symptoms observed at the time of the study, with children aged 4-8 years old (Wave 1). At this stage, the assessment of the community comparison group was added. RESULTS: Adopted and children in residential care presented high levels of RAD and DSED symptoms at placement. For adoptees, previous experiences of abuse and neglect were marginally associated with the initial presence of RAD symptoms and a significant recovery was observed after an average of three years in their families, with a certain level of longitudinal continuity between initial and later assessments. In children currently placed in long-term residential centers in Spain, DSED symptoms worsened from W0 to W1. CONCLUSIONS: Adoption appears to be an effective intervention that promotes recovery of RAD and DSED symptomatology after early adversity, whereas institutionalization causes negative effects.


Assuntos
Adoção , Criança Institucionalizada , Apego ao Objeto , Comportamento Problema , Transtorno Reativo de Vinculação na Infância , Adoção/psicologia , Criança , Maus-Tratos Infantis/psicologia , Criança Institucionalizada/psicologia , Pré-Escolar , Humanos , Institucionalização , Internacionalidade , Comportamento Problema/psicologia , Psicologia da Criança , Transtorno Reativo de Vinculação na Infância/diagnóstico , Transtorno Reativo de Vinculação na Infância/epidemiologia , Transtorno Reativo de Vinculação na Infância/psicologia , Instituições Residenciais , Estudos Retrospectivos , Participação Social/psicologia , Espanha
17.
BMC Pediatr ; 22(1): 690, 2022 Dec 02.
Artigo em Inglês | MEDLINE | ID: mdl-36461019

RESUMO

BACKGROUND: Several studies showed that parenting intervention programs play a core component in early child development. Considering the limited healthcare resources in developing countries, group-session intervention based on care for child development (CCD) guideline might be cost-effective. METHODS: This randomized controlled trial was conducted at an outpatient public Pediatrics clinic in Isfahan, Iran. We included 210 pregnant women aged 18-45 years in their third trimester and followed their children for 18 months. The intervention group underwent 5 educational group sessions, each lasting for almost 45 minutes. The main outcomes were the children's development and socio-emotional behavior problems based on Bayley Scales of Infant and Toddler Development-III (BSID-III) at 12 months and the Children Behavior Checklist (CBCL) at 18 months. RESULTS: Overall, data of 181 children were included in the current study, including 80 in the intervention group and 101 controls. The adjusted median/mean differences between intervention and control groups using median/linear regression were not significant for all BSID-III domains except for median differences for cognitive score based on BSID-III (ß (SE): - 4.98(2.31), p:0.032) and mean differences for anxiety/depression score based on CBCL (ß (SE): - 2.54(1.27), p:0.046). CONCLUSION: In this study, parenting interventions through CCD group sessions were significantly effective on just one subscale of children's socio-emotional behavior domains based on CBCL and one domain of children's development based on BSID-III. There might be a ceiling or floor effects for the BSID-III and CBCL assessment, respectively, leaving little room for improvement as almost all children have achieved their full developmental potential in our study. TRIAL REGISTRATION: IRCT20190128042533N2, Date of registration: 16/01/2020, www.irct.ir.


Assuntos
Poder Familiar , Comportamento Problema , Gravidez , Lactente , Feminino , Humanos , Criança , Desenvolvimento Infantil , Emoções , Ansiedade
18.
BMC Psychol ; 10(1): 285, 2022 Dec 02.
Artigo em Inglês | MEDLINE | ID: mdl-36461112

RESUMO

BACKGROUND: The prolonged transitions to adulthood strengthen interest in parenting characteristics that can shape emerging adults' development and progression to full-fledged adulthood. It also strengthens interest in instruments suitable for measuring such parenting characteristics. The current study contributes to this area of research by applying the Interpersonal Behavior Questionnaire (IBQ), to assess parenting behaviors that are pertinent for emerging adults' development and wellbeing, and seeks evidence of its dimensional structure and criterion validity. METHOD: The sample of the study consisted of 600 emerging adults (Mage = 24.94, SDage = 3.03, range 19-29 years; 52.3% women). The dimensionality of IBQ was assessed by testing a sequence of theoretically plausible models representing alternative factor score structures. Criterion validity was investigated by exploring the associations between the IBQ dimensions and basic psychological need satisfaction and frustration, negative affectivity, and thriving. RESULTS: The findings provide evidence of a hypothesized six-factor structure, but advocate for the use of exploratory structural equation as it may more accurately reflect associations between the six dimensions. Findings also provide evidence of criterion validity. CONCLUSIONS: The findings indicate that IBQ applied to parenting targets dimensions highly relevant for EAs' flourishing or impoverished functioning. Findings also offer evidence of structure and criterion validity for the IBQ applied to emerging adults' parent behaviors. As such, researchers may find IBQ attractive, as it is relatively concise yet also a holistic measure that captures the behaviors that both support and thwart an emerging adult's need for autonomy, competence, and relatedness. Findings also shed light on the process of becoming an adult, the shift in parent-child relationships during this process, and emerging adults' wellbeing.


Assuntos
Poder Familiar , Comportamento Problema , Adulto , Feminino , Humanos , Adulto Jovem , Masculino , Relações Pais-Filho , Pais , Inquéritos e Questionários
19.
Sensors (Basel) ; 22(23)2022 Dec 04.
Artigo em Inglês | MEDLINE | ID: mdl-36502173

RESUMO

The widespread use of unmanned aerial vehicles (UAVs) has brought many benefits, particularly for military and civil applications. For example, UAVs can be used in communication, ecological surveys, agriculture, and logistics to improve efficiency and reduce the required workforce. However, the malicious use of UAVs can significantly endanger public safety and pose many challenges to society. Therefore, detecting malicious UAVs is an important and urgent issue that needs to be addressed. In this study, a combined UAV detection model (CUDM) based on analyzing video abnormal behavior is proposed. CUDM uses abnormal behavior detection models to improve the traditional object detection process. The work of CUDM can be divided into two stages. In the first stage, our model cuts the video into images and uses the abnormal behavior detection model to remove a large number of useless images, improving the efficiency and real-time detection of suspicious targets. In the second stage, CUDM works to identify whether the suspicious target is a UAV or not. Besides, CUDM relies only on ordinary equipment such as surveillance cameras, avoiding the use of expensive equipment such as radars. A self-made UAV dataset was constructed to verify the reliability of CUDM. The results show that CUDM not only maintains the same accuracy as state-of-the-art object detection models but also reduces the workload by 32%. Moreover, it can detect malicious UAVs in real-time.


Assuntos
Comportamento Problema , Reprodutibilidade dos Testes , Comunicação , Manutenção , Agricultura
20.
Artigo em Inglês | MEDLINE | ID: mdl-36497514

RESUMO

The comprehensive theoretical model of problem behaviors proposes that family socioeconomic status is one of the factors affecting adolescent problem behaviors. The purpose of this study is to further explore the mechanism of the influence of family socioeconomic status on adolescent problem behaviors based on the framework of the comprehensive theoretical model of problem behaviors. Further, it is to discover more protective or risk factors affecting adolescent problem behaviors, so as to provide theoretical guidance for the prevention of and intervention in adolescent problem behaviors. This study used data from the 2014-2015 academic year of the China Education Panel Survey (CEPS) conducted by the China survey and data center at the Renmin University of China. A national representative sample of 6888 junior high school students was selected. Among them, 3342 (48.5%) were girls and 3546 (51.5%) were boys with an average age of 14.50 years (SD = 0.68 years). The results revealed that parental educational expectations and adolescents' confidence in the future played a contributory mediating role in the association between family socioeconomic status and adolescents' problem behaviors. Both parental educational expectations and adolescents' confidence in the future are protective factors against adolescents' problem behaviors and enhancing these factors can decrease the likelihood of adolescents' engagement in problem behaviors.


Assuntos
Comportamento do Adolescente , Comportamento Problema , Adolescente , Masculino , Feminino , Humanos , Escolaridade , Classe Social , Estudantes
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