So different yet so alike? Political collective narcissism predicts blatant dehumanization of political outgroups among conservatives and liberals.

Previous research found that political polarization goes hand in hand with being strongly identified with a political ingroup. In this research, we assumed this should be the case only among those who identify with their political ingroup in a narcissistic way (stemming from frustrated needs and predicting outgroup hostility). This hypothesis was tested in one experimental (Study 4, n = 525) and three cross-sectional (Study 1, n = 320; Study 2, n = 316; Study 3, n = 500) studies conducted among American and Polish participants.

COVID-19 Vaccines over Three Years after the Outbreak of the COVID-19 Epidemic.

The outbreak of COVID-19 started in December 2019 and spread rapidly all over the world. It became clear that the development of an effective vaccine was the only way to stop the pandemic. It was the first time in the history of infectious diseases that the process of the development of a new vaccine was conducted on such a large scale and accelerated so rapidly.

When the sun goes down: low political knowledge and high national narcissism predict climate change conspiracy beliefs.

Unlabelled: The present research empirically examines the links between political knowledge, national narcissism, and climate change conspiracy beliefs. National narcissism (i.e.

Affective Polarization and Political Belief Systems: The Role of Political Identity and the Content and Structure of Political Beliefs.

We investigate the extent that political identity, political belief content (i.e., attitude stances), and political belief system structure (i.

From Individual Anxiety to Collective Narcissism? Adult Attachment Styles and Different Types of National Commitment.

National narcissism and national identification, two distinct types of national commitment, differ in terms of their psychological concomitants. Therefore, in the current article, we hypothesized that they would also relate to different adult attachment styles. Namely, we proposed that national narcissism would be positively associated with higher attachment anxiety, while national identification would be associated with lower attachment anxiety and avoidance.

A vicious circle? Longitudinal relationships between different modes of in-group identity and COVID-19 conspiracy thinking.

Since March 2020, when the World Health Organization declared the spread of COVID-19 a global pandemic, conspiracy theories have continued to rise. This research examines the role of different forms of in-group identity in predicting conspiracy thinking in the context of the coronavirus pandemic. We hypothesized that conspiracy thinking would be predicted positively by national narcissism (i.

Evaluation of precipitation time of the aluminum salts adsorbed potentially frozen vaccines used in the Polish National Immunization Schedule for their pre-qualification before the administration.

Purpose: Vaccines adsorbed on aluminum adjuvants irreversibly lose potency after freezing and their safety is affected. To prevent the administration of such vaccines, the World Health Organization developed the Shake Test designed to determine whether adsorbed vaccines have been frozen or not. However, the Shake Test is difficult and time-consuming when routinely conducted at the place of vaccination.

COVID-19: Why Do People Refuse Vaccination? The Role of Social Identities and Conspiracy Beliefs: Evidence from Nationwide Samples of Polish Adults.

In the present research, we focus on COVID-19 vaccine hesitancy, and empirically examine how different forms of social identity (defensive vs. secure national identity and identification with all humanity) and conspiracy beliefs are associated with COVID-19 vaccine hesitancy. In two cross-sectional nationwide surveys (Study 1, = 432, and Study 2, = 807), we found that willingness to vaccinate against COVID-19 was negatively linked to national narcissism, but positively related to a secure national identification, that is, national identification without the narcissistic component.

Diphtheria-tetanus-pertussis vaccine: past, current & future.

The diphtheria-tetanus-pertussis (DTP) vaccine can prevent diphtheria, tetanus and pertussis. The component antigens of the DTP vaccine had long been monovalent vaccines. The pertussis vaccine was licensed in 1914.

Changes in Life Situations during the SARS-CoV-2 Virus Pandemic and Their Impact on Eating Behaviors for Residents of Europe, Australia as Well as North and South America.

Many people's life situations are changing as a result of restrictions being imposed by national governments to limit the spread of the virus. These may be associated with additional factors (emotional or financial, for example) that influence eating behavior and physical activity levels. Therefore, the aim of this study was to show whether there is a relationship between a changing life situation during the pandemic and eating behavior as well as physical activity.

Changes in Eating Behaviour during SARS-CoV-2 Pandemic among the Inhabitants of Five European Countries.

Psychological factors and restrictions imposed due to the pandemic may influence eating behaviours and physical activity. With the above thesis in mind, questionnaire-based surveys were conducted amongst residents of five European countries: Poland, Italy, Spain, Portugal and Great Britain (England and Scotland). A specially devised, structured questionnaire was used to conduct anonymous internet surveys between 28 April and 16 July 2020.

Effectiveness of experimental and commercial pertussis vaccines in the elimination of Bordetella pertussis isolates with different genetic profiles in murine model.

The aim of this study was to compare the elimination of Bordetella pertussis clinical isolates, representing different genotypes in relation to alleles encoding virulence factors (MLST-multi-locus antigen sequence typing), MLVA type (multi-locus variable-number tandem repeat analysis) and PFGE group (pulsed-field gel electrophoresis) from the lungs of naive mice or mice were immunised with the commercial whole-cell pertussis vaccine, the acellular pertussis vaccine and the experimental whole-cell pertussis vaccine. Molecular data indicate that the resurgence of pertussis in populations with high vaccine coverage is associated with genomic adaptation of B. pertussis, to vaccine selection pressure.

Threatened Masculinity: Gender-Related Collective Narcissism Predicts Prejudice Toward Gay and Lesbian People among Heterosexual Men in Poland.

We examined the relationships between different types of in-group positivity and prejudice toward gay and lesbian people among heterosexual men. We assumed that prejudice toward gay and lesbian people among heterosexual men should be predicted by gender-related collective narcissism (i.e.

Adherence to safety and self-isolation guidelines, conspiracy and paranoia-like beliefs during COVID-19 pandemic in Poland - associations and moderators.

Background: Due to coronavirus pandemic, governments have ordered a nationwide isolation. In this situation, we hypothesised that people holding conspiracy beliefs are less willing to adhere to medical guidelines. Furthermore, we explored what possible factors may modify relationships between conspiracy, paranoia-like beliefs, and adherence to epidemiological guidelines.

An Experiencer, An Animal or An Object? Erection Salience Decreases Men's Perceived Agency.

Three experiments investigated the influence of penile erection on ascriptions of mental capabilities to men. Drawing on sexual objectification literature and the distinction between agency and experience in mind perception, three competing predictions were formulated. The mind redistribution hypothesis assumed that penile erection would lower agency and heighten experience attributions, the animalistic dehumanization hypothesis predicted the decrease in agency, but not experience, and the literal objectification hypothesis implied the simultaneous decrease in both agency and experience.

The Role of Family Time Together in Meeting the Recommendation for Physical Activity among Primary School Children.

Family time may have an influence on children's physical activity (PA) participation or may contribute to increased sedentary behaviour. The aim of this paper was to examine whether spending family time is associated with the PA of children aged 10-11. Cross-sectional data on 158 primary school children (80 girls and 78 boys) with a mean age of 10.

In search of an imaginary enemy: Catholic collective narcissism and the endorsement of .

Gender studies have often been criticized for undermining family and religious values. In this paper, we argue that these criticisms exhibit the characteristics of conspiracy theories. We define as convictions that gender studies and gender-equality activists represent an ideology secretly designed to harm traditional values and social arrangements.

Physical and chemical changes in Alhydrogel™ damaged by freezing.

Accidental freezing of aluminum-based vaccines occurs during their storage and transportation, in both developed and developing countries. Freezing damages the freeze-sensitive aluminum adjuvanted vaccines, through separation of lattice between aluminum adjuvant and antigen, leading to formation of aluminum aggregates, and loss of potency. In this study, we examined Alhydrogel™ ([AlO(OH)]xnHO, aluminum hydroxide, hydrated for adsorption) stored under recommended conditions, and exposed to freezing temperature until solid-frozen.

What inverted U can do for your country: A curvilinear relationship between confidence in the social system and political engagement.

We examined the link between political engagement and the tendency to justify the sociopolitical system. On one hand, confidence in the system should be negatively related to political engagement, insofar as it entails reduced desire for social change; on the other hand, system confidence should also be positively related to political engagement to the extent that it carries an assumption that the system is responsive to citizens' political efforts. Because of the combination of these 2 opposing forces, the motivation for political engagement should be highest at intermediate levels of system confidence.

On Old-Fashioned Versus Modern Homonegativity Distinction: Evidence From Poland.

Psychological research on prejudice against homosexuals distinguishes between old-fashioned (traditional) and modern (contemporary) homonegativity, which differ with regard to their content, correlates, and consequences. The current research offers evidence for the validity of old-fashioned versus modern homonegativity distinction in the post-communist, East European context. In Studies 1 and 2 (Ns = 295 and 327, respectively) the Polish adaptations of the non-gendered and gendered Homonegativity Scale (Morrison, Parriag, & Morrison, 1999) and the Modern Homonegativity Scale (Morrison & Morrison, 2003) were developed.

Is liberal bias universal? An international perspective on social psychologists.

Based on our comparison of political orientation and research interests of social psychologists in capitalist Western countries versus post-Communist Eastern European countries, we suggest that Duarte and colleagues' claim of liberal bias in the field seems American-centric. We propose an alternative account of political biases which focuses on the academic tendency to explain attitudes of lower status groups.

Effect of different Bacillus Calmette-Guerin substrains on growth inhibition of T24 bladder cancer cells and cytokines secretion by BCG activated peripheral blood mononuclear cells of PBMCs.

Background: Bladder carcinoma is the most common malignancy of the urinary tract. Approximately 75-85% of patients present non-muscle invasive bladder cancer (NMIBC). Standard primary treatment for NIMBC is transurethral resection (TUR) followed by intravesical Bacillus Calmette-Guerin (BCG) immunotherapy.

Anamnestic immunological response profile in laboratory animals after immunization with recombinant hepatitis B vaccines of different generations.

Hepatitis B vaccines containing preS1 and preS2 fragments are assumed to be more immunogenic than those containing SHBs protein alone, which may be of importance for immunization of people with poorly induced or without any immunological response after vaccination. The aim of this study was to evaluate: The following conclusions can be drawn on the basis of obtained results:

Structural damages in adsorbed vaccines affected by freezing.

This study was planned to evaluate structural damages in adsorbed vaccines affected by freezing using scanning electron microscopy and X-ray analysis of the elements. Randomly selected 42 vials of eight different types of WHO pre-qualified adsorbed freeze-sensitive vaccines from 10 manufacturers were included in the study. Vaccines were kept at 5 °C.