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As legislatures approach gender parity in different parts of the world, questions remain about whether institutional cultures support equal epistemic authority for women. In the French National Assembly, modern republicanism promotes depersonalized representation: deputies are expected to embody the universal citizen, with gender embedded but not defining. Drawing on 24 interviews with deputies elected before and after the 2017 elections, this article develops a feminist institutionalist framework to show how women navigate tensions between republican expectations that demand conformity to masculinized neutrality and pluralist norms that confine authority to “women’s issues.” We introduce the concept of epistemic double bind to theorize this dilemma and present a typology of role expectations and strategic responses that captures how deputies negotiate it. Our findings show that even in more gender-balanced legislatures, women face enduring constraints on epistemic authority. France serves as a critical case for understanding the practical demands of depersonalized representation and how actors reconfigure its contradictions in institutions shaped by parity laws.
Undesirable bias is a well-known issue in algorithmic decision-making. This chapter explores how fairness is defined and whether it can be studied quantitively, and explores several debiasing frameworks from the literature.
This study investigated the hypothesis that milk quality traits and milk proteolytic activity vary with lactation number in dairy cows. Milk was collected from 109 individual cows, 20 Swedish Holstein and 89 Swedish Red, from 12 commercial Swedish farms. Samples were analysed individually and grouped into three lactation categories: lactations 1–2 (N = 56), lactations 3–4 (N = 32) and lactations ≥5 (N = 21). The principal finding was that plasmin (PL) activity increased markedly with advancing lactation number, with significantly higher activity observed in cows in lactations 3–4 and ≥5 compared with those in lactations 1–2 (P < 0.001). Although plasminogen (PG) concentrations tended to decrease with increasing lactation number, this trend did not reach statistical significance (P = 0.298). As a result, the PG-to-PL ratio decreased progressively with advancing lactation (P < 0.001), indicating increased proteolytic potential in milk from older cows. Lactation number also had a clear influence on milk protein composition. The proportion of total casein decreased steadily across lactation groups, while the proportion of whey proteins increased (P ≤ 0.004). Within the casein fractions, total β-casein declined significantly from lactations 1–2 to ≥5 (P < 0.001), whereas the relative amount of β-casein B increased with lactation number (P = 0.003). The proportions of αs2-casein and κ-casein were highest in cows with lactations ≥5 (P ≤ 0.019). Among whey proteins, α-lactalbumin increased markedly with lactation number (P < 0.001), and β-lactoglobulin showed an increasing, although statistically non-significant, tendency (P = 0.071). Gross milk composition was unaffected by lactation number; however, somatic cell count (SCC) increased significantly in cows in lactations 3–4 and ≥5 compared with lactations 1–2 (P = 0.002). Overall, advancing stage of lactation was associated with enhanced PL-mediated proteolysis, shifts in milk protein profile and higher SCCs, whereas the basic milk composition remained stable.
The aim of this study was to characterize the physiological variation of somatic cell count (SCC) and milk somatic cell subsets in relation to total bacterial count and milk production parameters, in mastitis-free local Greek ewes. To this end, we studied the SCC, daily milk yield and composition, milk somatic cell subset distribution and total bacterial count in the milk of first and second parity Frizarta ewes, at different lactation stages. As there is a total lack of evidence for differential milk somatic cell distribution in local Greek ewes, we chose to study the Frizarta breed, one of the most promising local sheep breeds, extensively reared in Western Greece, highly productive and well adapted to geoclimatic conditions. Partial correlation analysis was performed between SCC and somatic cell subtype populations with milk yield, composition and total bacterial count. Total SCC in Frizarta ewes ranged between 35 and 74 × 103 cells/ml and was significantly influenced by lactation stage and parity number. Neutrophils and lymphocytes were the most abundant immune cell types followed by mammary epithelial cells and macrophages. A positive association of bacterial count with neutrophils and macrophages and a negative association with lymphocytes were observed. Finally, a negative association between total bacterial count with daily milk yield was detected. Our data forms the basis for understanding how parity and stage of lactation affects different immune and epithelial cell populations in the milk of healthy Frizarta ewes and can be used in future studies investigating the effect of the health status on differential cell count in ewe milk.
Symmetry means that there is no change under a transformation (or operation). It can refer to a system – a state or a physical quantity – or to a physical law. The importance of symmetries in physics is that they are most often equivalent to a law of conservation. In this chapter we first consider symmetries related to spacetime, which are geometrical symmetries. These are translations, rotations, inversions of space and time. A second type are internal (or dynamical) symmetries, because they concern the dynamics of the fundamental interaction and/or inherent properties of systems: charge conjugation C, parity P and the time reversal T. We analyse another important symmetry, gauge invariance in electromagnetism. We also distinguish symmetries with a finite number of transformations from continuous symmetries.
In this article, we generalize Andrews’ partitions separated by parity to overpartitions in two ways. We investigate the generating functions for $16$ overpartition families whose parts are separated by parity, and we prove various q-series identities for these functions. These identities include relations to modular forms, q-hypergeometric series, and mock modular forms.
Symmetries are a key idea in physics. In the classical world, they are associated to conservation laws, courtesy of Emmy Noether. The same, and more, is true in the quantum world. In this chapter we explore how symmetries manifest themselves in quantum mechanics. Special attention will be given to time evolution and the role of SU(2) and angular momentum
Free fermion fields are canonically quantized, proceeding from Weyl to Dirac andMajorana fermions, and from the massless to the massive case. We discuss properties likechirality, helicity, and the fermion number, as well as the behavior under parity andcharge conjugation transformation. Fermionic statistics is applied to the cosmic neutrinobackground.
Bound states in one-dimensional finite and infinite wells and delta-function potentials, and combinations of these, are obtained; the WKB method for bound states is introduced; the consequences of a parity-invariant potential for the eigenfunctions are derived.
In modern physics, symmetries are a powerful tool to constrain the form of equations, namely the Lagrangian that describes the system. Equations are assumed to be invariant under the transformation of a given group, which may be discrete or a continuous Lie group. Classification of the various types of symmetry. The concept of spontaneous symmetry breaking. It will evolve into the Higgs mechanism, which gives origin to the masses of the vector bosons that mediate the weak interactions, of the quarks and of the charged leptons.
The discrete symmetries, in particular the parity and the particle–antiparticle conjugation operations and the corresponding quantum numbers.
An important dynamical symmetry of the hadrons, the invariance of the Lagrangian under rigid rotations in an ‘internal’ space, the isospin space. The unitary group is SU(2).
Noting a curious link between Andrews’ even-odd crank and the Stanley rank, we adopt a combinatorial approach building on the map of conjugation and continue the study of integer partitions with parts separated by parity. Our motivation is twofold. Firstly, we derive results for certain restricted partitions with even parts below odd parts. These include a Franklin-type involution proving a parametrized identity that generalizes Andrews’ bivariate generating function, and two families of Andrews–Beck type congruences. Secondly, we introduce several new subsets of partitions that are stable (i.e. invariant under conjugation) and explore their connections with three third-order mock theta functions $\omega (q)$, $\nu (q)$, and $\psi ^{(3)}(q)$, introduced by Ramanujan and Watson.
The notion of symmetry is essential in the determination of particle properties. It reveals quantities that are conserved in collisions or decays. It also constrains the mathematical formulation of theories. This chapter introduces these concepts and explains how the notion of symmetry is implemented in quantum mechanics. It reviews the quantities conserved in particle collisions or decays: energy-momentum and total angular momentum, and also the internal symmetries, such as parity, charge conjugation, baryon and lepton numbers.
Although maternal mental illnesses have been found to influence child health and development, little is known about the impact of maternal positive well-being on child health and development. Therefore, this longitudinal study investigated the effects of prenatal subjective well-being on birth outcomes and child development by considering the potential modifier effect of parity.
Methods
Pregnant women in early stages of pregnancy were recruited at five selected hospitals in Taipei, Taiwan, during their prenatal appointments since 2011. Self-reported evaluations were conducted at seven time points up to 2 years postpartum. Linear regression and generalized estimating equation models were used for examination.
Results
Higher prenatal eudaimonic well-being was associated with longer gestational length (adjusted beta [aβ] = 0.36, 95% confidence interval [CI] = 0.03, 0.68) and higher birth weight (aβ = 124.71, 95% CI = 35.75, 213.66). Higher positive and negative affect were associated with longer gestational length (aβ = 0.38, 95% CI = 0.06, 0.70) and smaller birth weight (aβ = −93.51, 95% CI = −178.35, −8.67), respectively. For child’s outcomes, we found an association between higher prenatal eudaimonic well-being and decreased risks of suspected developmental delay, particularly for children of multiparous mothers (adjusted odds ratio = 0.18, 95% CI = 0.05, 0.70). Higher levels of prenatal depression and anxiety were significantly associated with increased risks of suspected developmental delay for children of primiparous mothers.
Conclusions
Positive prenatal maternal mental health may benefit birth outcomes and child development, particularly for children of multiparous mothers. Interventions for improving prenatal mental health may be beneficial for child development.
There is a dearth of women judges sitting on international courts and tribunals. This contribution pays attention to the question of why judicial gender matters. Demonstrating that sex-based differences play an important part in judging has challenged even the most committed essentialists. Legitimacy-based arguments are deemed inadequate in so far as they fail to address the structures of power and discrimination that create exclusions. In this contribution, I argue that the dearth of women judges matters because it is both symptom and cause of the highly gendered way in which international law and international institutions operate. Drawing on Erika Rackley’s early work in which metaphor is used to reveal the gendered nature of the judicial role, I call forth the idea of the totemic judge of international law whose male gender is rendered invisible and unremarked and who functions to enrobe the gendered norms and institutions of international law. The female judge, conversely, is a disruptive force as her very presence places gender in the frame. Drawing on accounts from international courts and from the Feminist Judgments in International Law project, this contribution concludes that an approach to judging that acknowledges and challenges structures of power – including gender – contains transformative potential. However, it is potential that must find a way to operate within significant institutional and normative constraints.
We explain why the experimentally established fact of conservation of electrical charges more or less forces the existence of anti-particles. Armed with this essential information we then turn to the study of Lorentz covariant families of quantum fields, of which the massive scalar field of Chapter 5 is the simplest example. These are the building blocks of the standard model, which describes the whole zoo of existing particles. We follow the steps of S. Weinberg to discover that simple linear algebra, combined with a few natural assumptions is all that is required to discover the main fields which are used by Nature (which we list and study), without having to resort to the contortions often seen in the physics literature. We give an example of these contortions by describing the attempts made to relate the Dirac field to classical mechanics.
Women’s ability to negotiate for safer sex has effects on their sexual and reproductive health. This study investigated the association between safer sex negotiation and parity among women in sub-Saharan Africa. The data were sourced from the Demographic and Health Surveys of 28 sub-Saharan African countries conducted from 2010 to 2019. A total of 215,397 women aged 15–49 were included in the study. Multilevel logistic analysis was conducted to examine the association between safer sex negotiation and parity among women in sub-Saharan Africa. The results were presented as adjusted odds ratios (aOR) and the significance level set at p<0.05. The overall prevalences of safer sex negotiation and high parity among women in sub-Saharan Africa were 82.7% and 52.1%, respectively. The prevalence of high parity ranged from 32.3% in Chad to 72.1% in Lesotho. The lowest prevalence of safer sex negotiation was in Chad (16.8%) while the highest prevalence was recorded in Rwanda (99.7%). Women who had the capacity to negotiate for safer sex were less likely to have high parity compared with those who had no capacity to negotiate for safer sex (aOR = 0.78, CI: 0.75–0.81). Other factors that were associated with high parity were age, educational level, marital status, exposure to media, contraceptive use, religion, wealth quintile, sex of household head, and place of residence. The study identified significant association between safer sex negotiation and high parity among women of reproductive age in sub-Saharan Africa. It is worth noting that women’s ability to negotiate for safer sex could reduce high parity among women in sub-Saharan Africa. Therefore, policies and programmes aimed at birth control or reducing high parity among women could be targeted at improving their capacity to negotiate for safer sex through education.
This article investigates the representativeness of news coverage when there are nearly as many female candidates as there are male candidates by considering the 2018 Québec Election, in which 47 per cent of candidates were women. We are interested not only in the magnitude of the coverage (that is, the volume of press coverage received by each candidate) but also in its tone (if the press coverage is negative or positive) and whether these parameters fluctuate based on the gender of the candidates. We know that the quality of the news coverage, and more specifically its tone, can affect voting intentions. We also know that journalists routinely portray politics as a masculine activity, but we know very little about the coverage that local female candidates receive in the context of parity in North America. We find that in spite of exceptional circumstances, female candidates received significantly less coverage than men.
Historical fears of violence by people with mental disorders increased in the final years of the last century. Science demonstrated falling UK homicide rates by people with psychosis but inaccurate perceptions drove UK government policy. As public perception of violence subsides, we see increasing societal narratives of pity for people who lose their mental health; these will mostly serve to extend their exclusion and deepen inequalities. Pity makes people ill. Actions to highlight and reduce stigma and discrimination have softened some attitudes, but mental health awareness is no substitute for actual engagement with people who have mental disorders and sustainable funding for those that need state supports (housing, income) or health services. Clinicians and partners in mental health reform have a duty to engage with local communities (and sometimes beyond) to achieve enough degrees of public engagement to prevent mental disorders by reducing the causes, principally poverty and inequality. These actions are just as important as providing fully integrated community mental health services. Parity of esteem is never having to say you are sorry (for someone) but to collaborate/advocate for their rights.
To test whether perception of insufficient milk (PIM) supply in the breast-feeding relationship of one child predicts how long mothers breast-feed subsequent children, and whether this association differs for first-time mothers v. mothers with previous children.
Design:
Secondary analysis of Infant Feeding Practices Study II (ordinary least squares regression) and Year 6 follow-up.
Setting:
Mailed, self-report survey of US mother–infant dyads, 2005–2012.
Participants:
Women pregnant with a singleton were recruited from a consumer opinion panel. Exclusion criteria included: mother age <18; infant born <5 lbs, born before 35 weeks or with extended NICU stay, and mother or infant diagnosed with condition that impacts feeding. A subsample with PIM data (n 1460) was analysed.
Results:
We found that women who weaned because of PIM with the index child stopped breast-feeding 5·7 weeks earlier than those who weaned due to other reasons (4·9 weeks earlier for multiparas, P < 0·001; 7·1 weeks earlier for primiparas, P < 0·001). Using Year 6 follow-up data (n 350), we found subsequent child 1 weaned 9·2 weeks earlier if the mother experiences PIM as a multipara (P = 0·020) and 10·6 weeks earlier if the mother experiences PIM as a primipara (P = 0·019). For subsequent child 2 (n 78), the magnitude of association was even larger, although insignificant due to low power.
Conclusions:
These findings indicate that PIM may carry forward in the reproductive life course, especially for first-time mothers. Perceptions of breast milk insufficiency and contributors to actual inadequate milk supply with the first child should be targeted, rather than intervening later in the reproductive life course.