scholarly journals Relations among Perceptions of Neighborhood Cohesion and Control and Parental Monitoring across Adolescence

2019 ◽  
Vol 49 (1) ◽  
pp. 74-86
Author(s):  
Jaime M. Booth ◽  
Daniel S. Shaw
Author(s):  
Kalogeraki Stefania ◽  
Papadaki Marina

The mobile phone has become an indispensable mean of communication in the world today, and for teenagers specifically has become de rigueur in everyday life. The eagerness of teenagers to embrace mobile devices can be associated with such devices' instrumental as well as social and expressive functions. However, these functions are intertwined with critical impacts on the interaction between teenagers and parental/peer groups. On the one hand, the mobile phone acts as a symbolic “umbilical cord” that provides a permanent channel of communication, intensifying parental surveillance. On the other hand, it creates a greater space for interaction with peers beyond parental monitoring and control. This article summarizes current research and presents an empirical example of the impact of teenagers' mobile phone communication on the dynamics of parental and peer group interactions during their socialization and emancipation from the familial sphere.


2021 ◽  
pp. 676-700
Author(s):  
Zainab Iftikhar ◽  
Qutaiba Rohan ul Haq ◽  
Osama Younus ◽  
Taha Sardar ◽  
Hammad Arif ◽  
...  

Author(s):  
Shahnaz Babayanzad Ahari ◽  
Zahra Behboodi Moghadam ◽  
Seyed Ali Azin ◽  
Ali Montazeri ◽  
Raziyeh Maasoumi ◽  
...  

AbstractObjectivesParents play a significant role in promoting of healthy sexuality in adolescents. The purpose of the present study was to assess the effectiveness of a sexuality education intervention program to enhance parent–adolescent sexual communication.MethodsThis study was a randomized controlled field trial. Parents of male adolescent aged 13–16 years were recruited from eight public all-boys high schools in Karaj, Iran. A multi-stage stratified random sampling method was used and 102 parents were assigned into intervention and control groups. The recruitment and data collection process lasted from February to November 2019. Self-report demographic questionnaire and six general parenting and parent–adolescent sexual communication measures were used to assess the impact of intervention. Sexuality education program was presented for the parents of intervention group, in the form of four weekly 2-h sessions. Parents were assessed at the baseline, within one week post-intervention, and three-month follow-up to evaluate the outcome variables. The data were analyzed using the Chi-square test, two-sample t-test, general linear model analyses, and Bonferroni test.ResultsIn terms of parent–adolescent general communication, parental monitoring, parent–adolescent communication about sex-related topics, parent’s sexual communication skills, parent’s self-efficacy, and responsiveness to sexual communication. There were no significant differences between intervention and control groups at the baseline (p>0.05). Compared to controls, intervention parents reported more improvement in general communication across the time; however, significant differences were not observed regarding general communication and parental monitoring (p=0.94, p=0.95). Parents in the intervention group significantly differed from those in the control group for the mean scores of parent–adolescent communication about sex-related topics (p=0.04), parent’s sexual communication skills (p=0.04), parent’s self-efficacy (p=0.002), and responsiveness (p<0.001) to sexual communication at each follow-up.ConclusionsWe identified the educational program as a promising tool for improving parent–adolescent communication regarding sexuality-related issues. This program provides the evidence for implementation of parent-based sexuality education programs.


Author(s):  
R. R. Dils ◽  
P. S. Follansbee

Electric fields have been applied across oxides growing on a high temperature alloy and control of the oxidation of the material has been demonstrated. At present, three-fold increases in the oxidation rate have been measured in accelerating fields and the oxidation process has been completely stopped in a retarding field.The experiments have been conducted with an iron-base alloy, Pe 25Cr 5A1 0.1Y, although, in principle, any alloy capable of forming an adherent aluminum oxide layer during oxidation can be used. A specimen is polished and oxidized to produce a thin, uniform insulating layer on one surface. Three platinum electrodes are sputtered on the oxide surface and the specimen is reoxidized.


Author(s):  
D. M. DePace

The majority of blood vessels in the superior cervical ganglion possess a continuous endothelium with tight junctions. These same features have been associated with the blood brain barrier of the central nervous system and peripheral nerves. These vessels may perform a barrier function between the capillary circulation and the superior cervical ganglion. The permeability of the blood vessels in the superior cervical ganglion of the rat was tested by intravenous injection of horseradish peroxidase (HRP). Three experimental groups of four animals each were given intravenous HRP (Sigma Type II) in a dosage of.08 to.15 mg/gm body weight in.5 ml of.85% saline. The animals were sacrificed at five, ten or 15 minutes following administration of the tracer. Superior cervical ganglia were quickly removed and fixed by immersion in 2.5% glutaraldehyde in Sorenson's.1M phosphate buffer, pH 7.4. Three control animals received,5ml of saline without HRP. These were sacrificed on the same time schedule. Tissues from experimental and control animals were reacted for peroxidase activity and then processed for routine transmission electron microscopy.


Author(s):  
G. Mazzocchi ◽  
P. Rebuffat ◽  
C. Robba ◽  
P. Vassanelli ◽  
G. G. Nussdorfer

It is well known that the rat adrenal zona glomerulosa steroidogenic activity is controlled by the renin-angiotensin system. The ultrastructural changes in the rat zona glomerulosa cells induced by renovascular hypertension were described previously, but as far as we are aware no correlated biochemical and morphometric investigations were performed.Twenty adult male albino rats were divided into 2 experimental groups. One group was subjected to restriction of blood flow to the left kidney by the application of a silver clip about the left renal artery. The other group was sham-operated and served as a control. Renovascular hypertension developed in about 10 days: sistolic blood pressure averaged 165 ± 6. 4 mmHg, whereas it was about 110 ± 3. 8 mmHg in the control animals. The hypertensive and control rats were sacrificed 20 days after the operation. The blood was collected and plasma renin activity was determined by radioimmunological methods. The aldosterone concentration was radioimmunologically assayed both in the plasma and in the homogenate of the left capsular adrenal gland.


Author(s):  
Henry I. Smith ◽  
D.C. Flanders

Scanning electron beam lithography has been used for a number of years to write submicrometer linewidth patterns in radiation sensitive films (resist films) on substrates. On semi-infinite substrates, electron backscattering severely limits the exposure latitude and control of cross-sectional profile for patterns having fundamental spatial frequencies below about 4000 Å(l),Recently, STEM'S have been used to write patterns with linewidths below 100 Å. To avoid the detrimental effects of electron backscattering however, the substrates had to be carbon foils about 100 Å thick (2,3). X-ray lithography using the very soft radiation in the range 10 - 50 Å avoids the problem of backscattering and thus permits one to replicate on semi-infinite substrates patterns with linewidths of the order of 1000 Å and less, and in addition provides means for controlling cross-sectional profiles. X-radiation in the range 4-10 Å on the other hand is appropriate for replicating patterns in the linewidth range above about 3000 Å, and thus is most appropriate for microelectronic applications (4 - 6).


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