The Relationship between the Golden Spiny Mouse Circadian System and Its Diurnal Activity: An Experimental Field Enclosures and Laboratory Study

2007 ◽  
Vol 24 (4) ◽  
pp. 599-613 ◽  
Author(s):  
Ofir Levy ◽  
Tamar Dayan ◽  
Noga Kronfeld‐Schor
Keyword(s):  
Laboratory Study ◽  
Circadian System ◽  
Spiny Mouse ◽  
Diurnal Activity ◽  
Experimental Field ◽  
The Relationship

Relation of Spelling and Writing in Learning Disabilities

1987 ◽  
Vol 64 (1) ◽  
pp. 219-236 ◽  
Author(s):  
Nils Søvik ◽  
Oddvar Arntzen ◽  
Ragnar Thygesen
Keyword(s):  
Learning Disabilities ◽  
Laboratory Study ◽  
Orthogonal Design ◽  
Type Structure ◽  
Spelling Errors ◽  
Independent Variables ◽  
Psychomotor Functions ◽  
Writing Accuracy ◽  
The Relationship

The paper describes a study in which the relationship between the cognitive and psychomotor aspects of children's spelling and writing performances was investigated. By comparing data from various categories of children the relationship between the semantic and psychomotor functions could be examined, and differences between the skill performances of the three groups of students were predicted. A four-way 3 × 3 × 2 × 2 orthogonal design with categories of subjects, type, structure, and length of task as independent variables was used in the laboratory study, with 24 “normal”, 24 dyslexic, and 24 dysgraphic nine-year-old children as subjects. Most of the 16 hypotheses were verified by data identifying some of the spelling and writing characteristics of the three groups of children and the effects of contextual parameters on their performances. Dyslexic children, for example, seemed to write more slowly than the others, and their mean score of spelling errors was the highest one, whereas the dysgraphic children had the lowest mean score in writing accuracy and rhythm.

Relationship between Introversion/Extraversion, Values regarding Control over Information, and Perceptions of Invasion of Privacy

1986 ◽  
Vol 62 (2) ◽  
pp. 371-376 ◽  
Author(s):  
Dianna L. Stone
Keyword(s):  
Individual Differences ◽  
Laboratory Study ◽  
Personal Information ◽  
Personal Data ◽  
Personality Inventory ◽  
Eysenck Personality Inventory ◽  
Invasion Of Privacy ◽  
The Relationship

A laboratory study examined the relationship between individual differences in introversion/extraversion, values regarding control over personal information, and perceptions of invasion of privacy. 119 subjects were asked to complete the Eysenck Personality Inventory, a personal data questionnaire, a measure of values regarding control over information, and a measure of perceived invasion of privacy. Regression/correlational analyses indicated that both introversion and values regarding control over personal information were positively related to perceptions of invasion of privacy.

scholarly journals JUSTIFICATION OF THE FUNCTIONAL MARMALADE RECIPE

2021 ◽  
pp. 5-5
Author(s):  
A. V. Stroshkova ◽  
I. M. Titova ◽  
I. P. Massalina
Keyword(s):  
Capillary Electrophoresis ◽  
Childhood Obesity ◽  
Computer Model ◽  
Laboratory Study ◽  
Mass Fraction ◽  
Nutritional Value ◽  
Sugar Content ◽  
Patent Search ◽  
Retail Chains ◽  
The Relationship

The article analyzes the mass fraction of sugar in the composition of the most common types of marmalade in retail chains. The hypothesis of the relationship between the statistics of childhood obesity in Russia and the increase in the consumption of "hidden" sugars is presented. The article substantiates the relevance of introducing healthy sweets into the diet of children. The results of a patent search and laboratory study of the sugar content in industrial marmalade by capillary electrophoresis are presented. A computer model of the marmalade recipe with a low sugar content and high nutritional value was obtained.

scholarly journals The Role of Gene Encoding Variation ofDRD4in the Relationship between Inattention and Seasonal Daylight

2019 ◽  
Author(s):  
M.A. Vollebregt ◽  
B. Franke ◽  
J.K. Buitelaar ◽  
L.E. Arnold ◽  
S.V. Faraone ◽  
...  
Keyword(s):  
Circadian System ◽  
Sensitivity Analyses ◽  
Winter Solstice ◽  
Gene Encoding ◽  
Hyperactivity Disorder ◽  
Light Levels ◽  
Adult Participants ◽  
Functional Genetic Variation ◽  
The Relationship

ABSTRACTDaylight is the strongest synchronizer of human circadian rhythms. The circadian pathway hypothesis posits that synchrony between daylight and the circadian system relates to (in)attention. The dopamine neurotransmitter system is implicated in regulating the circadian system as well as in (attention)-deficit hyperactivity disorder [ADHD]. We studied the role of functional genetic variation in the gene encoding of dopamine-receptor-D4 (DRD4) in the relationship between inattention and seasonal daylight (changes). Gene-by-environment (GxE) mega-analyses were performed across eight studies including 3757 adult participants (with and without ADHD). We tested 1) theSpring-focus hypothesis, in which attention in 7R-carriers normalizes with increasing daylight levels preceding measurement, 2) theSummer-born ADHD hypothesis, in which 7R-carriers report more inattention when born in spring/summer than in autumn/winter, 3) theWinter-born ADHD hypothesis, opposing the second hypothesis. TheSpring-focus hypothesiswas upheld (1386 ADHD, 760 controls;d=-0.16 between periods); 7R-carriers reported evenlessinattention than 7R-non-carriers after winter solstice (d=0.27 between genotype-groups). Results were diagnosis-independent. Sensitivity analyses at individual study level confirmed the circannual patterns for 7R-carriers. Incorporating geographic changes into the independent measure, we also calculated changes in sunlight levels. This approach likewise showed that inattention correlated negatively with increasing light levels in 7R-carriers (r=-.135). Results emphasize peripheral effects of dopamine and the effects of (seasonal) daylight changes on cognition.

Laboratory Study on the Performance of Domestic Wastewater Biofilters Made of Arundo Donax L.

2013 ◽  
Vol 295-298 ◽  
pp. 1104-1109
Author(s):  
Jun Cui ◽  
Liang Wang
Keyword(s):  
Laboratory Study ◽  
Phosphorus Content ◽  
Domestic Wastewater ◽  
Arundo Donax ◽  
Treatment Efficiency ◽  
Nitrogen And Phosphorus ◽  
Domestic Wastewater Treatment ◽  
Relationship Of ◽  
The Relationship ◽  
Arundo Donax L

Filter systems have the ability to remove pollutants from wastewater. However, to increase the treatment efficiency, the filter made of plants has been recommended which has been called the biofilter. The objective of this study was to examine the performance of biofilter made by Arundo donax L. on domestic wastewater treatment. In this paper, a laboratory study using vertical flow constructed wetlands planted with Arundo donax L. and without any other plants were conducted. For the biofilter planted in Arundo donax L., the removal of TN, NH4+-N and TP 89%, 93% and 98% respectively. In particular, we also got the nitrogen and phosphorus content of different parts of Arundo donax L. which was divided into root, stem and leaves. For the total nitrogen content in the plant, there is a quantitive relationship of stem<root<leaves. For the total phosphorus content, the relationship is root<stem<leaves quantitatively. Whilst, compared with the total removal of nitrogen and phosphorus, the removal via plant absorption accounts for 22% and 29% separately. The results of this research suggest that Arundo donax L. with large leaves could be used as a main plant in the domestic wastewater biofilter.

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