Agnieszka Żelaźniewicz
Datos Biográficos
| ID | 86741 |
|---|---|
| NOMBRE | Agnieszka Żelaźniewicz |
| NOMBRES | Agnieszka |
| APELLIDO | Żelaźniewicz |
| FIRMA | ŻELAŹNIEWICZ A |
| AFILIACIONES | University of Wrocław |
| ORCID | 0000-0002-8081-4922 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 21 |
| TOTAL DE CITAS | 17 |
| TOTAL COMO AUTOR | 21 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 2011 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2025 |
| ÍNDICE H | 2 |
Nudity Norms and Breast Arousal
Facial Appearance and Markers of Cardiometabolic Risk in Healthy Adult Men
Facial appearance is hypothesized to serve as a cue to an individual’s biological condition. However, the results of studies linking facial appearance with various measures of biological condition are inconclusive. Furthermore, most research has assessed the biological condition based on self-reported health or only a single health measure. This study aimed to verify if a man’s facial appearance reflects his metabolic health, which was assessed b…
Is Family Size Related To Love? Data from 25 Countries
Previous research indicates that having children can negatively affect relationship satisfaction, yet it may also strengthen bonding between partners. Romantic love is hypothesized to serve as a commitment device contributing to marital satisfaction. Interestingly, the relationship between romantic love and the number of children is complex and has received limited empirical attention, especially in diverse cultural contexts. However, some eviden…
Muscle parameters in men and oxidative stress markers
Background The oxidative handicap hypothesis posits that testosterone-dependent traits, such as muscle mass and strength, may be costly to develop due to testosterone's pro-oxidative properties, leading to increased oxidative stress. This hypothesis suggests that only individuals with superior biological conditions can afford these costs. This study examines the oxidative handicap hypothesis, exploring the relationship between muscle mass or hand…
Breast size in lactating women and the content of macronutrients in human milk
Introduction Although the primary function of a woman's breast is milk synthesis, only a few studies have evaluated the relationship between breast size and human milk composition, showing equivocal results. This study aims to test if breast size during fully established lactation is related to energy density and content of macronutrients in human milk. Materials and Methods Mothers of healthy, born‐on‐term infants at stage III of lactogenesis ( …
The impact of geographical bias when judging scientific studies
The beauty of science lies within its core assumption that it seeks to identify the truth, and as such, the truth stands alone and does not depend on the person who proclaims it. However, people's proclivity to succumb to various stereotypes is well known, and the scientific world may not be exceptionally immune to the tendency to judge a book by its cover. An interesting example is geographical bias, which includes distorted judgments based on t…
Men say "I love you" before women do
Feeling and expressing love is at the core of romantic relationships, but individuals differ in their proclivity to worry about their relationships and/or avoid intimacy. Saying "I love you" signals a commitment to a future with our romantic partner. Contrary to gender stereotypes, research in the United States demonstrates that men are more likely to confess love first. We aimed to replicate this sex difference in an online cross-national sample…
A positive relationship between body height and the testosterone response to physical exercise
Are Beards Honest Signals of Male Dominance and Testosterone
Pharyngeal Detection of Staphylococcus aureus as a Possible Factor Related to Disgust Sensitivity in Humans
Disgust triggers behavioral avoidance of pathogen-carrying and fitness-reducing agents. However, because of the cost involved, disgust sensitivity should be flexible, varying as a function of an individual's immunity. Asymptomatic colonization with Staphylococcus aureus often results from weakened immunity and is a potential source of subsequent infections. In this study, we tested if pharyngeal colonization with S. aureus , evaluated based on a …
Difference in Perception of Onset of Old Age in Traditional (Hadza) and Modern (Polish) Societies
Despite relatively clear physiological indicators of old age, little is known about cross-cultural differences in psychological perceptions of the transition to old age. Although recent studies suggest consistency between modern countries, the subjective perception of old age onset in traditional societies remains poorly explored. Therefore, we compared the perception of timing of old age between a traditional tribe of hunter-gatherers (the Hadza…
Do adipokines levels influence facial attractiveness of young women
OBJECTIVES: Facial attractiveness is thought to reflect an individual's biological condition. This seems to be largely explained by the relationship between facial appearance and body adiposity, a trait that affects various aspects of body homeostasis, including fertility and immunity. The aim of this study was to test if, a part of adipose tissue amount, also levels of hormones secreted by adipose tissue are reflected in women's appearance, focu…
Romantic Love and Reproductive Hormones in Women
Increased reproductive success is among the most commonly proposed adaptive functions of romantic love. Here, we tested if hormonal changes associated with falling in love may co-vary with hormonal profiles that predict increased fecundity in women. We compared blood serum levels of estradiol (E2, E2/T), luteinizing hormone (LH), follicle-stimulating hormone (FSH), prolactin (PRL), free testosterone (fT), and cortisol (CT), measured in the early …
Maternal breast volume in pregnancy and lactation capacity
OBJECTIVES: Successful breastfeeding, crucial for a child's development, depends on a woman's ability to initiate lactation, milk yield, and composition. Those traits differ among women, but the cause and physiological mechanisms responsible for this variation are not fully understood yet. Growing evidence shows that lactation and milk composition vary among women and depend on maternal traits. The aim of this study was to test whether breast vol…
A Bulb of Narcissus on the Egyptian Mummy from University of Wrocław Collection
The object of the present study is the ancient bulb of the narcissus found on the mummy, probably of the Ptolemaic period, brought to Wrocław from Italy in the sixteenth century AD. For about four hundred years the mummy was kept by the successive owners of one of pharmacies in Wrocław, and after the World War II became the possession of Wrocław University. Computed tomography made in 2002 revealed an atypical object lying under the left hand of …
Maternal breast and body symmetry in pregnancy and offspring condition
OBJECTIVES: Fluctuating asymmetry (FA) is hypothesized to reflect the level of an individual's developmental instability, and therefore genetic quality. As a potential signal of biological condition, female body (including breast) symmetry was shown to be perceived as more attractive in mate choice context. If symmetry reflects a woman's genetic quality, it is possible that FA, similarly to other maternal anthropometric cues of biological conditi…
Breast shape (ptosis) as a marker of a woman's breast attractiveness and age
OBJECTIVES: A women's breast is a sex-specific and aesthetic bodily attribute. It is suggested that breast morphology signals maturity, health, and fecundity. The perception of a woman's attractiveness and age depends on various cues, such as breast size or areola pigmentation. Conducted in Poland and Papua, the current study investigated how breast attractiveness, and the further estimate of a woman's age based on her breast's appearance, is aff…
Woman's body symmetry and oxidative stress in the first trimester of pregnancy
OBJECTIVES: High level of oxidative stress (OS) during the first weeks of pregnancy is related to many serious pregnancy complications. Previous studies showed that body fluctuating asymmetry (FA) is related to OS level in men, suggesting that FA is a marker of oxidative balance in an individual. The aim of this study was to analyze if body FA was related to the level of biomarkers of OS in the first trimester of pregnancy. METHODS: The sample in…
Breast size and asymmetry during pregnancy in dependence of a fetus's sex
OBJECTIVES: Breast size and fluctuating asymmetry (FA) are related to women's biological condition, as size correlates positively with fecundity, whereas FA correlates negatively with biological quality. We tested if breast volume, FA, and their changes during pregnancy are related to a fetus's sex. Women with bigger, symmetrical breasts, with a greater increase in size during pregnancy, should be more likely to carry a more ecologically sensitiv…
Newborn's condition at birth does not depend on maternal sexual strategy—evidence against the “hunting for good genes” hypothesis
OBJECTIVES: Neonatal weight and health depend on many epigenetic and environmental factors and also on a child's genes as inherited from the mother and the father. The "Hunting for Good Genes" (HfGG) hypothesis claims that women pursue short-term mating strategies in order to obtain good genes for their progeny. If this is true, one should expect that in comparison to children born in long-term relationships (LR), children born in short-term rela…
Female Breast Size Attractiveness for Men as a Function of Sociosexual Orientation (Restricted vs. Unrestricted)
Mate preferences are context-dependent and may vary with different ecological conditions and raters. The present study investigated whether sociosexual orientation influenced men's rating of attractiveness of female breast size. Participants (N=128) rated female breast attractiveness as a function of size (five levels) and viewing angles (front view, oblique view, and side view). Men were divided into two groups (restricted and unrestricted), bas…
Female Breast Size Attractiveness for Men as a Function of Sociosexual Orientation (Restricted vs. Unrestricted)
Mate preferences are context-dependent and may vary with different ecological conditions and raters. The present study investigated whether sociosexual orientation influenced men's rating of attractiveness of female breast size. Participants (N=128) rated female breast attractiveness as a function of size (five levels) and viewing angles (front view, oblique view, and side view). Men were divided into two groups (restricted and unrestricted), bas…
Men say "I love you" before women do
Feeling and expressing love is at the core of romantic relationships, but individuals differ in their proclivity to worry about their relationships and/or avoid intimacy. Saying "I love you" signals a commitment to a future with our romantic partner. Contrary to gender stereotypes, research in the United States demonstrates that men are more likely to confess love first. We aimed to replicate this sex difference in an online cross-national sample…
Are Beards Honest Signals of Male Dominance and Testosterone
Do adipokines levels influence facial attractiveness of young women
OBJECTIVES: Facial attractiveness is thought to reflect an individual's biological condition. This seems to be largely explained by the relationship between facial appearance and body adiposity, a trait that affects various aspects of body homeostasis, including fertility and immunity. The aim of this study was to test if, a part of adipose tissue amount, also levels of hormones secreted by adipose tissue are reflected in women's appearance, focu…
Maternal breast volume in pregnancy and lactation capacity
OBJECTIVES: Successful breastfeeding, crucial for a child's development, depends on a woman's ability to initiate lactation, milk yield, and composition. Those traits differ among women, but the cause and physiological mechanisms responsible for this variation are not fully understood yet. Growing evidence shows that lactation and milk composition vary among women and depend on maternal traits. The aim of this study was to test whether breast vol…
Female Breast Size Attractiveness for Men as a Function of Sociosexual Orientation (Restricted vs. Unrestricted)
Mate preferences are context-dependent and may vary with different ecological conditions and raters. The present study investigated whether sociosexual orientation influenced men's rating of attractiveness of female breast size. Participants (N=128) rated female breast attractiveness as a function of size (five levels) and viewing angles (front view, oblique view, and side view). Men were divided into two groups (restricted and unrestricted), bas…
Newborn's condition at birth does not depend on maternal sexual strategy—evidence against the “hunting for good genes” hypothesis
OBJECTIVES: Neonatal weight and health depend on many epigenetic and environmental factors and also on a child's genes as inherited from the mother and the father. The "Hunting for Good Genes" (HfGG) hypothesis claims that women pursue short-term mating strategies in order to obtain good genes for their progeny. If this is true, one should expect that in comparison to children born in long-term relationships (LR), children born in short-term rela…
Woman's body symmetry and oxidative stress in the first trimester of pregnancy
OBJECTIVES: High level of oxidative stress (OS) during the first weeks of pregnancy is related to many serious pregnancy complications. Previous studies showed that body fluctuating asymmetry (FA) is related to OS level in men, suggesting that FA is a marker of oxidative balance in an individual. The aim of this study was to analyze if body FA was related to the level of biomarkers of OS in the first trimester of pregnancy. METHODS: The sample in…
Breast size and asymmetry during pregnancy in dependence of a fetus's sex
OBJECTIVES: Breast size and fluctuating asymmetry (FA) are related to women's biological condition, as size correlates positively with fecundity, whereas FA correlates negatively with biological quality. We tested if breast volume, FA, and their changes during pregnancy are related to a fetus's sex. Women with bigger, symmetrical breasts, with a greater increase in size during pregnancy, should be more likely to carry a more ecologically sensitiv…
Breast shape (ptosis) as a marker of a woman's breast attractiveness and age
OBJECTIVES: A women's breast is a sex-specific and aesthetic bodily attribute. It is suggested that breast morphology signals maturity, health, and fecundity. The perception of a woman's attractiveness and age depends on various cues, such as breast size or areola pigmentation. Conducted in Poland and Papua, the current study investigated how breast attractiveness, and the further estimate of a woman's age based on her breast's appearance, is aff…
A Bulb of Narcissus on the Egyptian Mummy from University of Wrocław Collection
The object of the present study is the ancient bulb of the narcissus found on the mummy, probably of the Ptolemaic period, brought to Wrocław from Italy in the sixteenth century AD. For about four hundred years the mummy was kept by the successive owners of one of pharmacies in Wrocław, and after the World War II became the possession of Wrocław University. Computed tomography made in 2002 revealed an atypical object lying under the left hand of …
Maternal breast and body symmetry in pregnancy and offspring condition
OBJECTIVES: Fluctuating asymmetry (FA) is hypothesized to reflect the level of an individual's developmental instability, and therefore genetic quality. As a potential signal of biological condition, female body (including breast) symmetry was shown to be perceived as more attractive in mate choice context. If symmetry reflects a woman's genetic quality, it is possible that FA, similarly to other maternal anthropometric cues of biological conditi…
Romantic Love and Reproductive Hormones in Women
Increased reproductive success is among the most commonly proposed adaptive functions of romantic love. Here, we tested if hormonal changes associated with falling in love may co-vary with hormonal profiles that predict increased fecundity in women. We compared blood serum levels of estradiol (E2, E2/T), luteinizing hormone (LH), follicle-stimulating hormone (FSH), prolactin (PRL), free testosterone (fT), and cortisol (CT), measured in the early …
Maternal breast volume in pregnancy and lactation capacity
OBJECTIVES: Successful breastfeeding, crucial for a child's development, depends on a woman's ability to initiate lactation, milk yield, and composition. Those traits differ among women, but the cause and physiological mechanisms responsible for this variation are not fully understood yet. Growing evidence shows that lactation and milk composition vary among women and depend on maternal traits. The aim of this study was to test whether breast vol…
Pharyngeal Detection of Staphylococcus aureus as a Possible Factor Related to Disgust Sensitivity in Humans
Disgust triggers behavioral avoidance of pathogen-carrying and fitness-reducing agents. However, because of the cost involved, disgust sensitivity should be flexible, varying as a function of an individual's immunity. Asymptomatic colonization with Staphylococcus aureus often results from weakened immunity and is a potential source of subsequent infections. In this study, we tested if pharyngeal colonization with S. aureus , evaluated based on a …
Difference in Perception of Onset of Old Age in Traditional (Hadza) and Modern (Polish) Societies
Despite relatively clear physiological indicators of old age, little is known about cross-cultural differences in psychological perceptions of the transition to old age. Although recent studies suggest consistency between modern countries, the subjective perception of old age onset in traditional societies remains poorly explored. Therefore, we compared the perception of timing of old age between a traditional tribe of hunter-gatherers (the Hadza…
Do adipokines levels influence facial attractiveness of young women
OBJECTIVES: Facial attractiveness is thought to reflect an individual's biological condition. This seems to be largely explained by the relationship between facial appearance and body adiposity, a trait that affects various aspects of body homeostasis, including fertility and immunity. The aim of this study was to test if, a part of adipose tissue amount, also levels of hormones secreted by adipose tissue are reflected in women's appearance, focu…
A positive relationship between body height and the testosterone response to physical exercise
Are Beards Honest Signals of Male Dominance and Testosterone
The impact of geographical bias when judging scientific studies
The beauty of science lies within its core assumption that it seeks to identify the truth, and as such, the truth stands alone and does not depend on the person who proclaims it. However, people's proclivity to succumb to various stereotypes is well known, and the scientific world may not be exceptionally immune to the tendency to judge a book by its cover. An interesting example is geographical bias, which includes distorted judgments based on t…
Men say "I love you" before women do
Feeling and expressing love is at the core of romantic relationships, but individuals differ in their proclivity to worry about their relationships and/or avoid intimacy. Saying "I love you" signals a commitment to a future with our romantic partner. Contrary to gender stereotypes, research in the United States demonstrates that men are more likely to confess love first. We aimed to replicate this sex difference in an online cross-national sample…
Breast size in lactating women and the content of macronutrients in human milk
Introduction Although the primary function of a woman's breast is milk synthesis, only a few studies have evaluated the relationship between breast size and human milk composition, showing equivocal results. This study aims to test if breast size during fully established lactation is related to energy density and content of macronutrients in human milk. Materials and Methods Mothers of healthy, born‐on‐term infants at stage III of lactogenesis ( …
Nudity Norms and Breast Arousal
Facial Appearance and Markers of Cardiometabolic Risk in Healthy Adult Men
Facial appearance is hypothesized to serve as a cue to an individual’s biological condition. However, the results of studies linking facial appearance with various measures of biological condition are inconclusive. Furthermore, most research has assessed the biological condition based on self-reported health or only a single health measure. This study aimed to verify if a man’s facial appearance reflects his metabolic health, which was assessed b…
Is Family Size Related To Love? Data from 25 Countries
Previous research indicates that having children can negatively affect relationship satisfaction, yet it may also strengthen bonding between partners. Romantic love is hypothesized to serve as a commitment device contributing to marital satisfaction. Interestingly, the relationship between romantic love and the number of children is complex and has received limited empirical attention, especially in diverse cultural contexts. However, some eviden…
Muscle parameters in men and oxidative stress markers
Background The oxidative handicap hypothesis posits that testosterone-dependent traits, such as muscle mass and strength, may be costly to develop due to testosterone's pro-oxidative properties, leading to increased oxidative stress. This hypothesis suggests that only individuals with superior biological conditions can afford these costs. This study examines the oxidative handicap hypothesis, exploring the relationship between muscle mass or hand…
Medicine (14 obras) · Evolutionary Psychology and Human Behavior (13 obras) · Psychology (12 obras) · Biology (11 obras) · Internal Medicine (9 obras) · Endocrinology (8 obras) · Developmental psychology (7 obras) · Pregnancy (6 obras) · Attractiveness (5 obras) · Physiology (5 obras)