scholarly journals The importance of cross-national and cross-cultural research in understanding the central nervous system complications of HIV disease

AIDS ◽  
2010 ◽  
Vol 24 (7) ◽  
pp. 1061-1062
Author(s):  
James T Becker ◽  
Ned Sacktor
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Cross Cultural ◽  
Hiv Disease ◽  
Cultural Research ◽  
Cross Cultural Research ◽  
The Central Nervous System ◽  
Cross National

scholarly journals Analyzing Measurement Invariance of the Students’ Engagement Instrument Brief Version: The Cases of Denmark, Finland, and Portugal

2017 ◽  
Vol 33 (4) ◽  
pp. 297-313 ◽  
Author(s):  
T. E. Virtanen ◽  
P. Moreira ◽  
H. Ulvseth ◽  
H. Andersson ◽  
S. Tetler ◽  
...  
Keyword(s):  
Student Engagement ◽  
Measurement Invariance ◽  
Cross Cultural ◽  
School Contexts ◽  
Invariance Testing ◽  
National School ◽  
Cultural Research ◽  
Cross Cultural Research ◽  
Different Levels ◽  
Cross National

The promotion of students’ engagement with school is an internationally acknowledged challenge in education. There is a need to examine the structure of the concept of student engagement and to discover the best practices for fostering it across societies. That is why the cross-cultural invariance testing of students’ engagement measures is highly needed. This study aimed, first, to find the reduced set of theoretically valid items to represent students’ affective and cognitive engagement forming the Brief-SEI (brief version of the Student Engagement Instrument; SEI). The second aim was to test the measurement invariance of the Brief-SEI across three countries (Denmark, Finland, and Portugal). A total of 4,437 seventh-grade students completed the SEI questionnaires in the three countries. The analyses revealed that of the total 33 original instrument items, 15 items indicated acceptable psychometric properties of the Brief-SEI. With these 15 items, cross-national factorial validity and invariances across genders and students with different levels of academic performance (samples from Finland and Portugal) were demonstrated. This article discusses the utility of the Brief-SEI in cross-cultural research and its applicability in different national school contexts.

COVID-19 A Cultural Analysis to Understand Variance in Infection Rate across Nations

2020 ◽  
Author(s):  
Ratan Dheer ◽  
Carolyn Egri ◽  
Len J. Treviño
Keyword(s):  
Infection Rate ◽  
Cultural Analysis ◽  
Cross Cultural ◽  
Cultural Value ◽  
National Data ◽  
Government Effectiveness ◽  
Cultural Research ◽  
Cross Cultural Research ◽  
Social Restriction ◽  
Cross National

We integrate insights from cross-cultural research with inquiry in social psychology to develop a theoretically grounded and culturally derived explanation of the cross-national variance in COVID-19 infections. Specifically, we draw on Hofstede's (1984) and Schwartz' (1999) cultural value frameworks to elucidate how dimensions resulting from these explain differences in individual’s behavior in response to social distancing and social restriction guidelines, thereby mitigating the infection rate of COVID-19 cross-nationally. Our analysis, based on cross-national data, and after controlling for differences in government effectiveness, GDP per capita and population density, suggest that while individualism, indulgence, autonomy, and egalitarianism positively predicted COVID-19 cases across nations, power distance negatively predicted the number of COVID-19 cases cross nationally.

Sociocultural memory development research drives new directions in gadgetry science

2019 ◽  
Vol 42 ◽  
Author(s):  
Penny Van Bergen ◽  
John Sutton
Keyword(s):  
Episodic Memory ◽  
Autobiographical Memory ◽  
Developmental Psychology ◽  
Cross Cultural ◽  
Memory Development ◽  
Development Research ◽  
Cultural Research ◽  
New Directions ◽  
Cross Cultural Research

Abstract Sociocultural developmental psychology can drive new directions in gadgetry science. We use autobiographical memory, a compound capacity incorporating episodic memory, as a case study. Autobiographical memory emerges late in development, supported by interactions with parents. Intervention research highlights the causal influence of these interactions, whereas cross-cultural research demonstrates culturally determined diversity. Different patterns of inheritance are discussed.

Effects of Hyperoxia on Lung Utrastructure

1970 ◽  
Vol 28 ◽  
pp. 26-27
Author(s):  
Gladys Harrison
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Light Microscopy ◽  
Oxygen Effects ◽  
Age Dependent ◽  
The Central Nervous System ◽  
The Subject ◽  
Space Age ◽  
Alveolar Septa ◽  
Extensive Damage

With the advent of the space age and the need to determine the requirements for a space cabin atmosphere, oxygen effects came into increased importance, even though these effects have been the subject of continuous research for many years. In fact, Priestly initiated oxygen research when in 1775 he published his results of isolating oxygen and described the effects of breathing it on himself and two mice, the only creatures to have had the “privilege” of breathing this “pure air”.Early studies had demonstrated the central nervous system effects at pressures above one atmosphere. Light microscopy revealed extensive damage to the lungs at one atmosphere. These changes which included perivascular and peribronchial edema, focal hemorrhage, rupture of the alveolar septa, and widespread edema, resulted in death of the animal in less than one week. The severity of the symptoms differed between species and was age dependent, with young animals being more resistant.

Emigration of neutrophils in the central nervous system

1983 ◽  
Vol 41 ◽  
pp. 788-789
Author(s):  
John L.Beggs ◽  
John D. Waggener ◽  
Wanda Miller ◽  
Jane Watkins
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Osmium Tetroxide ◽  
White Blood Cells ◽  
Arterial Perfusion ◽  
E Coli ◽  
Intracisternal Injection ◽  
The Central Nervous System ◽  
Brain And Spinal Cord ◽  
Interendothelial Junctions

Studies using mesenteric and ear chamber preparations have shown that interendothelial junctions provide the route for neutrophil emigration during inflammation. The term emigration refers to the passage of white blood cells across the endothelium from the vascular lumen. Although the precise pathway of transendo- thelial emigration in the central nervous system (CNS) has not been resolved, the presence of different physiological and morphological (tight junctions) properties of CNS endothelium may dictate alternate emigration pathways.To study neutrophil emigration in the CNS, we induced meningitis in guinea pigs by intracisternal injection of E. coli bacteria.In this model, leptomeningeal inflammation is well developed by 3 hr. After 3 1/2 hr, animals were sacrificed by arterial perfusion with 3% phosphate buffered glutaraldehyde. Tissues from brain and spinal cord were post-fixed in 1% osmium tetroxide, dehydrated in alcohols and propylene oxide, and embedded in Epon. Thin serial sections were cut with diamond knives and examined in a Philips 300 electron microscope.

Sign in / Sign up

Export Citation Format

Share Document