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Author(s):  
Shuaibu Garba Ngulde ◽  

Frattini subgroup, Φ(G), of a group G is the intersection of all the maximal subgroups of G, or else G itself if G has no maximal subgroups. If G is a p-group, then Φ(G) is the smallest normal subgroup N such the quotient group G/N is an elementary abelian group. It is against this background that the concept of p-subgroup and fitting subgroup play a significant role in determining Frattini subgroup (especially its order) of dihedral groups. A lot of scholars have written on Frattini subgroup, but no substantial relationship has so far been identified between the parent group G and its Frattini subgroup Φ(G) which this tries to establish using the approach of Jelten B. Napthali who determined some internal properties of non abelian groups where the centre Z(G) takes its maximum size.


Mindfulness ◽  
2021 ◽  
Author(s):  
Qian-Wen Xie ◽  
Xiaolu Dai ◽  
Renhui Lyu ◽  
Shuang Lu

Abstract Objectives Involving parents and children in mindfulness-based interventions may holistically benefit family well-being. This meta-analysis systematically reviews and synthesizes the effects of mindfulness-based parallel-group (MBPG) interventions, which simultaneously involve parent and child, on family functioning, and the mental health of parents and children. Methods A total of 20 relevant studies were identified from 14 databases. The overall intervention effect size was estimated by pooled standardized mean difference. Moderator analyses were performed to explain the variability in intervention effects. Risk of bias and publication bias were also assessed. Results MBPG interventions showed minor-to-small positive effects on family functioning (d = 0.182, 95% CI [0.045, 0.319]), parental mental health (d = 0.238, 95% CI [0.110, 0.365]), and child mental health (d = 0.325, 95% CI [0.137, 0.513]). The effects of MBPG interventions on child mental health varied significantly by child age, child gender, recruitment setting, type of parent group, other activities in child group, other activities in parent group, and study design. Conclusions MBPG interventions show promising effects in improving mental health of both parents and children as well as in improving overall family functioning. However, significant variations exist in characteristics of participants, interventions, and study designs. Given the limited evidence currently available, more studies are needed to assess the determinants of effectiveness in MBPG interventions. Protocol Registration: PROSPERO #CRD42020164927


Behaviour ◽  
2021 ◽  
pp. 1-13
Author(s):  
J.A. Britnell ◽  
L. Vorster ◽  
S. Shultz

Abstract Infanticide has been described across mammal species. Infanticide is thought to be a tactic which increases reproductive opportunities or reduces competition over local resources. Species of the genus Equus exhibit life history traits such as expensive young, long gestation, lactation and dependency, extended inter-birth interval when there is a foal at foot and strong male reproductive skew. These traits suggest infanticide may be present throughout the genus. However, most documented cases of infanticide attempts come from captive populations and rely heavily on indirect accounts in free-roaming populations. Here, we report an infanticide attempt in Cape mountain zebra (Equus zebra zebra). The aggression was perpetrated by multiple bachelor males on two foals belonging to the same family group. The foals were separated from the parent group, chased and harried for a total of 45 minutes before the mothers and herd stallion were able to regain their offspring. We also report three cases of infanticide from necropsy. The injuries sustained by the foals are consistent with infanticide-based injuries documented in other equids species. The timing of these deaths occurs after a stallion turnover. These two cases provide the most conclusive evidence to date that infanticide takes place within mountain zebra.


2021 ◽  
Author(s):  
Stefany Pinkus

The Effect of the Parenting Circles Program on Home Language Retention and Parental Engagement: The Case of a Spanish-Speaking Parent Group in Toronto


2021 ◽  
Author(s):  
Stefany Pinkus

The Effect of the Parenting Circles Program on Home Language Retention and Parental Engagement: The Case of a Spanish-Speaking Parent Group in Toronto


2021 ◽  
Vol 11 ◽  
Author(s):  
Bihan Ouyang ◽  
Maoyuan Li ◽  
Li Li ◽  
Shaohui Liu ◽  
Min Li

IntroductionAnnual LDCT has been offered as a regular examination among many unit staff in China. Along with the wide application of LDCT, more and more ground-glass nodules were found. We focused on characteristics and relationship of ground-glass nodules detected by LDCT as a regular health examination among Chinese hospital employees and their parents.MethodsWe recorded LDCT-detected ground-glass nodules (GGNs) in the hospital employees and parents between 2019 and 2020. Clinical information, including age, gender, smoking status was collected and analyzed.ResultsA total of 5,574 employees and 2,686 employs’ parents ≥60 years in Xiangya hospital performed annual physical examination. In total, LDCT incidentally detected ground-glass nodules 392 (24.78%, 392/1,582) in hospital employees and 254 in parents (10.80%, 254/2,352). The GGN-detection rate was significantly greater in employee group than parent group and more non-smokers in former (P <0.001). The detection rate was significantly greater in female than male both in employees group and parents group, and the proportion of female was bigger in employees group (P <0.001). There were more pure-GGNs both in employees group and parents group. There were less participants with solitary GGN in employee group than parent group (P = 0.033). Besides, there were more large GGNs (≥10 mm) (P <0.001), LU-RADS 4 GGNs (P <0.001) and LU-RADS 4B GGNs (P = 0.003), LU-RADS 4C-5 GGNs (P = 0.001) in parent group than employee group. There were 36 employee–parent pairs (27.07%) both had GGNs among 133 pairs who both performed LDCT. GGNs in employees were smaller and lower-grade than their parents (P < 0.001, P = 0.001).ConclusionsAmong the employees and parents who had ground glass nodules, 1/4 of them both detected GGNs. Although the detection rate of GGNs in the parent group was lower than that in the employee group, the grade of nodules was significantly higher. All these suggest that the occurrence and development of ground glass nodules may be related to genetic factors.


10.2196/28089 ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. e28089
Author(s):  
Christina Koumarela ◽  
Theano Kokkinaki ◽  
Giorgos Giannakakis ◽  
Katerina Koutra ◽  
Eleftheria Hatzidaki

Background There is limited knowledge on the physiological and behavioral pathways that may affect the developmental outcomes of preterm infants and particularly on the link between autonomic nervous system maturation and early social human behavior. Thus, this study attempts to investigate the way heart rate variability (HRV) parameters are related to emotional coordination in interactions of preterm and full-term infants with their parents in the first year of life and the possible correlation with the developmental outcomes of infants at 18 months. Objective The first objective is to investigate the relationship between emotional coordination and HRV in dyadic full-term infant–parent (group 1) and preterm infant–parent (group 2) interactions during the first postpartum year. The second objective is to examine the relationship of emotional coordination and HRV in groups 1 and 2 in the first postpartum year with the developmental outcomes of infants at 18 months. The third objective is to investigate the effect of maternal and paternal postnatal depression on the relation between emotional coordination and HRV in the two groups and on developmental outcomes at 18 months. The fourth objective is to examine the effect of family cohesion and coping on the relation between emotional coordination and HRV in the two groups and on developmental outcomes at 18 months. Methods This is an observational, naturalistic, and longitudinal study applying a mixed method design that includes the following: (1) video recordings of mother-infant and father-infant interactions at the hospital, in the neonatal period, and at home at 2, 4, 6, 9, and 12 months of the infants’ life; (2) self-report questionnaires of parents on depressive symptoms, family cohesion, and dyadic coping of stress; (3) infants’ HRV parameters in the neonatal period and at each of the above age points during and after infant-parent video recordings; and (4) assessment of toddlers’ social and cognitive development at 18 months through an observational instrument. Results The study protocol has been approved by the Research Ethics Committee of the University of Crete (number/date: 170/September 18, 2020). This work is supported by the Special Account for Research Funds of the University of Crete (grant number: 10792-668/08.02.2021). All mothers (with their partners) of full-term and preterm infants who give birth between March 2021 and January 2022 at the General University Hospital of Crete (northern Crete, Greece) will be invited to participate. The researcher will invite the parents of infants to participate in the study 1 to 2 days after birth. Data collection is expected to be completed by March 2023, and the first results will be published by the end of 2023. Conclusions Investigating the regulatory role of HRV and social reciprocity in preterm infants may have implications for both medicine and psychology. International Registered Report Identifier (IRRID) PRR1-10.2196/28089


Healthcare ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 385
Author(s):  
Jihye Kim ◽  
Jang-Kyung Park ◽  
Jung-Youn Park ◽  
Eun-Jin Lee ◽  
Soo-Hyun Sung

This cross-sectional study investigated the correlation between parents’ perception and their children’s traditional Korean medicine (TKM) use reported by parents in order to discover policy intervention points and provide a reference for establishing generalized TKM policies. Participant data from a 2017 national survey on TKM usage was divided into two groups based on the children’s TKM use reported by parents. The female participants’ children had a higher rate of experience in using TKM (8.1%; p = 0.029). Additionally, 91.4% of the parent group with a child who used TKM turned out to have used TKM, which was higher than 71.9% of the parents whose children never used TKM (p < 0.001). As for the awareness on the use of TKM, 44.0% of the parents with a child who experienced TKM answered they were aware of it, while only 35.3% of the parent group whose child never experienced TKM did so (p = 0.033). The present study suggests that parental experience in using TKM could have an impact on the children’s TKM use reported by parents. Further study is necessary to assess which parental factor (awareness level, medical disorder to be treated, therapy, therapeutic efficacy, the purpose of visit, sex, age, etc.) has a close relationship with TKM usage experience of their children.


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