Ethnic Group, Sex and Economic Disadvantage: associations with pupils’ educational progress from Baseline to the end of Key Stage 1

1999 ◽  
Vol 25 (2) ◽  
pp. 179-202 ◽  
Author(s):  
Steve Strand
Keyword(s):  
Ethnic Group ◽  
Economic Disadvantage ◽  
Educational Progress ◽  
Group Sex ◽  
Stage 1

SEX-IDENTIFICATION AND SEX-TYPING IN SOME NIGERIAN CHILDREN'S DRAWINGS

1985 ◽  
Vol 13 (1) ◽  
pp. 69-73 ◽  
Author(s):  
K. Pfeffer
Keyword(s):  
Sex Differences ◽  
Social Class ◽  
Ethnic Group ◽  
School Children ◽  
Low Income ◽  
Sex Role ◽  
Sex Identification ◽  
Primary School Children ◽  
Sex Typing ◽  
Group Sex

Sex-identification and sex-typing were examined in some Nigerian primary school children using Draw-A-Person. Subjects were from the Yoruba ethnic group. Sex-role differentiation in the Yoruba culture was outlined. The effects of sex and social class on sex-identification and sex-typing were examined. The results suggest that Yoruba girls are less likely to show own-sex identification than Yoruba boys (p<.001) and that this tendency is more marked for low-income than ‘elite’ girls (p<.01). Regarding sex-typing, marginal sex differences were observed though the number of drawings amenable for analysis was too small for meaningful statistical comparisons.

Terrorists will strike China's cities again

2015 ◽  
Keyword(s):  
Ethnic Group ◽  
Seasonal Migration ◽  
Public Security ◽  
Public Order ◽  
Economic Disadvantage ◽  
Content Type ◽  
The Past ◽  
Indigenous Ethnic Group ◽  
Regional Capital ◽  
China’S Cities

Significance The same day, state media reported that the authorities in the regional capital, Urumqi, had passed a regulation banning the wearing of burqas. Over the past two years, violence involving Uighurs, the predominantly Muslim indigenous ethnic group in Xinjiang, has increased in ferocity and spread beyond Xinjiang to cities nationwide. Impacts Nationwide seasonal migration during the lunar new year holiday next month will make transport hubs prime targets for attack. The most likely cause of any business disruption is tighter public security and censorship. Public prejudice against Uighurs may increase, exacerbating their social alienation and economic disadvantage. The prospect of Uighur discontent coalescing into a movement that poses a threat to public order is remote. Restrictions on religion may reinforce it as a source of ethnic identity, increasing susceptibility to radicalisation.

Design of objective lens for 200-kV high-resolution electron microscopes

1983 ◽  
Vol 41 ◽  
pp. 314-315
Author(s):  
K. Tsuno ◽  
T. Honda ◽  
Y. Harada ◽  
M. Naruse
Keyword(s):  
Optical Properties ◽  
Computer Technology ◽  
Axial Magnetic Field ◽  
Chromatic Aberration ◽  
Objective Lens ◽  
Resolution Electron ◽  
Correction Of Astigmatism ◽  
Three Stages ◽  
Electron Microscopes ◽  
Stage 1

Developement of computer technology provides much improvements on electron microscopy, such as simulation of images, reconstruction of images and automatic controll of microscopes (auto-focussing and auto-correction of astigmatism) and design of electron microscope lenses by using a finite element method (FEM). In this investigation, procedures for simulating the optical properties of objective lenses of HREM and the characteristics of the new lens for HREM at 200 kV are described.The process for designing the objective lens is divided into three stages. Stage 1 is the process for estimating the optical properties of the lens. Firstly, calculation by FEM is made for simulating the axial magnetic field distributions Bzc of the lens. Secondly, electron ray trajectory is numerically calculated by using Bzc. And lastly, using Bzc and ray trajectory, spherical and chromatic aberration coefficients Cs and Cc are numerically calculated. Above calculations are repeated by changing the shape of lens until! to find an optimum aberration coefficients.

Alterations in the number of motoneurons containing immunoreactive calcitonin gene-related peptide(CGRP)& choline acetyltransferase(ChAT) in the cervical spinal cord of the wobbler mouse during the development of the motoneuron disease

1995 ◽  
Vol 53 ◽  
pp. 970-971
Author(s):  
L. Vacca-Galloway ◽  
Y.Q. Zhang ◽  
P. Bose ◽  
S.H. Zhang
Keyword(s):  
Spinal Cord ◽  
Early Stage ◽  
Cervical Spinal Cord ◽  
Wild Type Mouse ◽  
Reflex Response ◽  
Mouse Strains ◽  
Behavioral Tests ◽  
Wobbler Mouse ◽  
Stage 4 ◽  
Stage 1

The Wobbler mouse (wr) has been studied as a model for inherited human motoneuron diseases (MNDs). Using behavioral tests for forelimb power, walking, climbing, and the “clasp-like reflex” response, the progress of the MND can be categorized into early (Stage 1, age 21 days) and late (Stage 4, age 3 months) stages. Age-and sex-matched normal phenotype littermates (NFR/wr) were used as controls (Stage 0), as well as mice from two related wild-type mouse strains: NFR/N and a C57BI/6N. Using behavioral tests, we also detected pre-symptomatic Wobblers at postnatal ages 7 and 14 days. The mice were anesthetized and perfusion-fixed for immunocytochemical (ICC) of CGRP and ChAT in the spinal cord (C3 to C5).Using computerized morphomety (Vidas, Zeiss), the numbers of IR-CGRP labelled motoneurons were significantly lower in 14 day old Wobbler specimens compared with the controls (Fig. 1). The same trend was observed at 21 days (Stage 1) and 3 months (Stage 4). The IR-CGRP-containing motoneurons in the Wobbler specimens declined progressively with age.

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