scholarly journals Cross-section and panel estimates of peer effects in early adolescent cannabis use: With a little help from my ‘friends once removed’

2016 ◽  
Vol 163 ◽  
pp. 37-44 ◽  
Author(s):  
John Moriarty ◽  
Duncan McVicar ◽  
Kathryn Higgins
Keyword(s):  
Cross Section ◽  
Peer Effects ◽  
Cannabis Use ◽  
Early Adolescent ◽  
Panel Estimates

Early adolescent drinking and cannabis use predicts later sleep-quality problems.

2019 ◽  
Vol 33 (3) ◽  
pp. 266-273 ◽  
Author(s):  
Rowan P. Ogeil ◽  
Ali Cheetham ◽  
Anna Mooney ◽  
Nicholas B. Allen ◽  
Orli Schwartz ◽  
...  
Keyword(s):  
Sleep Quality ◽  
Cannabis Use ◽  
Early Adolescent ◽  
Adolescent Drinking

scholarly journals Peer Effects in Adolescent Cannabis Use: It's the Friends, Stupid

2012 ◽  
Author(s):  
John Moriarty ◽  
Duncan McVicar ◽  
Kathryn Higgins
Keyword(s):  
Peer Effects ◽  
Cannabis Use

scholarly journals Childhood social environmental and behavioural predictors of early adolescent onset cannabis use

2020 ◽  
Vol 39 (4) ◽  
pp. 384-393
Author(s):  
Kirsty E. Scholes‐Balog ◽  
Sheryl A. Hemphill ◽  
Jessica A. Heerde ◽  
John W. Toumbourou ◽  
George C. Patton
Keyword(s):  
Cannabis Use ◽  
Early Adolescent ◽  
Social Environmental

scholarly journals Multimodal neuroimaging of frontal white matter microstructure in early phase schizophrenia: the impact of early adolescent cannabis use

2013 ◽  
Vol 13 (1) ◽  
Author(s):  
Denise Bernier ◽  
Jacob Cookey ◽  
David McAllindon ◽  
Robert Bartha ◽  
Christopher C Hanstock ◽  
...  
Keyword(s):  
White Matter ◽  
Early Phase ◽  
Cannabis Use ◽  
Early Adolescent ◽  
Multimodal Neuroimaging ◽  
White Matter Microstructure ◽  
Frontal White Matter ◽  
The Impact

Positive Parents and Negative Peers: Assessing the Nature and Order of Caregiver and Friend Effects in Predicting Early Delinquency

2019 ◽  
Vol 18 (1) ◽  
pp. 96-114 ◽  
Author(s):  
Glenn D. Walters
Keyword(s):  
Peer Effects ◽  
Parental Support ◽  
Statistical Significance ◽  
Early Adolescent ◽  
Peer Delinquency ◽  
The Monte Carlo Method ◽  
Peer Associations ◽  
Gang Affiliation ◽  
The Relationship ◽  
And Training

The purpose of this study was to evaluate the nature and direction of the relationship between parenting and peer effects in predicting early delinquency. The parenting–peer relationship was evaluated in 1,734 (811 male, 923 female) early adolescent members (mean age = 12.10 years) of the Gang Resistance Education and Training (GREAT) study. A seven-equation path analysis was performed across three waves of data. The statistical significance of 16 indirect effects was evaluated using the Monte Carlo Method for Assessing Mediation. Two of the three pathways predicted to be significant were, in fact, significant (i.e., parental support to gang affiliation to participant delinquency; parental support to peer delinquency to participant delinquency), and all 13 pathways projected to be nonsignificant were, in fact, nonsignificant. Consistent with the research hypothesis for this study, prior parental support acted as a buffer against the delinquency-promoting effects of negative peer associations in early adolescent children.

XUV Absorption Spectra of Carbon Ions

1988 ◽  
Vol 102 ◽  
pp. 71-73
Author(s):  
E. Jannitti ◽  
P. Nicolosi ◽  
G. Tondello
Keyword(s):  
Absorption Spectra ◽  
Cross Section ◽  
Theoretical Calculations ◽  
Photoionization Cross Section ◽  
Carbon Ions

AbstractThe photoabsorption spectra of the carbon ions have been obtained by using two laser-produced plasmas. The photoionization cross-section of the CV has been absolutely measured and the value at threshold, σ=(4.7±0.5) × 10−19cm2, as well as its behaviour at higher energies agrees quite well with the theoretical calculations.

Elastic Scattering in Electron Microscopy

1973 ◽  
Vol 31 ◽  
pp. 252-253
Author(s):  
J. Langmore ◽  
M. Isaacson ◽  
J. Wall ◽  
A. V. Crewe
Keyword(s):  
Electron Microscopy ◽  
Elastic Scattering ◽  
Cross Section ◽  
Quantum Noise ◽  
Dark Field ◽  
Elastic Cross Section ◽  
Biological Molecules ◽  
Dark Field Microscopy ◽  
Field Systems ◽  
Effects Of Radiation

High resolution dark field microscopy is becoming an important tool for the investigation of unstained and specifically stained biological molecules. Of primary consideration to the microscopist is the interpretation of image Intensities and the effects of radiation damage to the specimen. Ignoring inelastic scattering, the image intensity is directly related to the collected elastic scattering cross section, σɳ, which is the product of the total elastic cross section, σ and the eficiency of the microscope system at imaging these electrons, η. The number of potentially bond damaging events resulting from the beam exposure required to reduce the effect of quantum noise in the image to a given level is proportional to 1/η. We wish to compare η in three dark field systems.

A New Approach to the Demonstration of Oxidase-Localization Using Tannic Acid Or Catechin

1973 ◽  
Vol 31 ◽  
pp. 698-699
Author(s):  
V. Mizuhira ◽  
Y. Futaesaku
Keyword(s):  
Cross Section ◽  
Tannic Acid ◽  
Elastic Fiber ◽  
The Other ◽  
New Approach ◽  
Tissue Block ◽  
Active Reaction ◽  
The Cross

Previously we reported that tannic acid is a very effective fixative for proteins including polypeptides. Especially, in the cross section of microtubules, thirteen submits in A-tubule and eleven in B-tubule could be observed very clearly. An elastic fiber could be demonstrated very clearly, as an electron opaque, homogeneous fiber. However, tannic acid did not penetrate into the deep portion of the tissue-block. So we tried Catechin. This shows almost the same chemical natures as that of proteins, as tannic acid. Moreover, we thought that catechin should have two active-reaction sites, one is phenol,and the other is catechole. Catechole site should react with osmium, to make Os- black. Phenol-site should react with peroxidase existing perhydroxide.

Electron Irradiation Effects in Polyoxymethylene Crystals Grown Inside Trioxane Crystals

1971 ◽  
Vol 29 ◽  
pp. 78-79
Author(s):  
J. P. Colson ◽  
D. H. Reneker
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Detailed Examination ◽  
The Other ◽  
Electron Micrograph ◽  
Irradiation Effects ◽  
Threefold Axis ◽  
Typical Sample ◽  
Polymer Crystals ◽  
Chain Axis

Polyoxymethylene (POM) crystals grow inside trioxane crystals which have been irradiated and heated to a temperature slightly below their melting point. Figure 1 shows a low magnification electron micrograph of a group of such POM crystals. Detailed examination at higher magnification showed that three distinct types of POM crystals grew in a typical sample. The three types of POM crystals were distinguished by the direction that the polymer chain axis in each crystal made with respect to the threefold axis of the trioxane crystal. These polyoxymethylene crystals were described previously.At low magnifications the three types of polymer crystals appeared as slender rods. One type had a hexagonal cross section and the other two types had rectangular cross sections, that is, they were ribbonlike.

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