The current study examined whether children in elementary school in the United States held stereotypes and prejudicial attitudes about Arab Muslims relative to other groups. Children (n = 136), ages 6–11 (55 boys, 81 girls), were read three counterbalanced vignettes about different immigrant families who moved to the United States: one family from the Middle East with clothing markers indicating they are Muslim (e.g., hijab), one family from the Middle East without clothing markers indicating religion, and one White family from Ireland. Children's responses indicated stereotypes associating the Arab Muslim male target as more anti‐American and hostile and the Arab Muslim female target as more oppressed than others, both consistent with prevalent media stereotypes. Children's positive and negative affective intergroup attitudes were also measured, along with their attitudes about who can be an “American,” with children showing both a positivity and negativity bias against Arab Muslims. Children who had some contact with Muslims or were familiar with Islam felt more positively toward Arab Muslims than less informed children. In addition, if children perceived Arab Muslims to be prototypical “Americans,” and identified as very American themselves, they also held positive attitudes toward Arab Muslims. Implications for prejudice reduction interventions are discussed.
The important human pathogen Streptococcus pyogenes (group A Streptococcus [GAS]) produces a hyaluronic acid (HA) capsule that plays critical roles in immune evasion. Previous studies showed that the hasABC operon encoding the capsule biosynthesis enzymes is under the control of a single promoter, P1, which is negatively regulated by the two-component regulatory system CovR/S. In this work, we characterize the sequence upstream of P1 and identify a novel regulatory region controlling transcription of the capsule biosynthesis operon in the M1 serotype strain MGAS2221. This region consists of a promoter, P2, which initiates transcription of a novel small RNA, HasS, an intrinsic transcriptional terminator that inefficiently terminates HasS, permitting read-through transcription of hasABC, and a putative promoter which lies upstream of P2. Electrophoretic mobility shift assays, quantitative reverse transcription-PCR, and transcriptional reporter data identified CovR as a negative regulator of P2. We found that the P1 and P2 promoters are completely repressed by CovR, and capsule expression is regulated by the putative promoter upstream of P2. Deletion of hasS or of the terminator eliminates CovR-binding sequences, relieving repression and increasing read-through, hasA transcription, and capsule production. Sequence analysis of 44 GAS genomes revealed a high level of polymorphism in the HasS sequence region. Most of the HasS variations were located in the terminator sequences, suggesting that this region is under strong selective pressure. We discovered that the terminator deletion mutant is highly resistant to neutrophil-mediated killing and is significantly more virulent in a mouse model of GAS invasive disease than the wild-type strain. Together, these results are consistent with the naturally occurring mutations in this region modulating GAS virulence.
Critical discourse analysis examines the key idea of social power and how it is used to produce social mistakes as a result of power abuse, inequality, and dominance. Martin Luther King's speeches show many of these social ideas. These views and authority are shown either explicitly or indirectly through the speaker's use of language structures. By analyzing the speeches, this paper tries to determine the speaker's target audience comments. This study focuses on a few selected sections that include patterns and terms that hint at these ideologies and power. The aims of this study is: Distinguishing textual and discursive techniques utilized in the speeches under review As a result, this research implies that 1) certain textual approaches are more often used in the selected speeches than others. 2) In the selected speeches, certain discursive strategies are used more frequently than others. When it comes to textual and discursive analysis, certain sociopolitical ideologies are more commonly revealed than others. The most widely used textual analysis methods are transitivity and modality. 1) In the investigated speeches, presupposition is the most common discursive strategy. 2) Certain themes dominate the writing. 3)Textual and discursive analysis often employ racism as an ideology.
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