The monster within Almond, Barbara
2010., 20100904, 2010, 2010-10-04, 20100101
eBook
Mixed feelings about motherhood--uncertainty over having a child, fears of pregnancy and childbirth, or negative thoughts about one's own children--are not just hard to discuss, they are a powerful ...social taboo. In this beautifully written book, Barbara Almond brings this troubling issue to light. She uncovers the roots of ambivalence, tells how it manifests in lives of women and their children, and describes a spectrum of maternal behavior--from normal feelings to highly disturbed mothering. In a society where perfection in parenting is the unattainable ideal, this compassionate book also shows how women can affect positive change in their lives.
The sensitivity of the phase velocity vp of Love surface waves to mass loading is a very important characteristic of Love wave devices. In this paper, we present a novel approach to evaluate the ...sensitivity of Love surface waves to loading with an infinitesimal layer of mass of a surface density σkg/m2. To this end, the we developed analytical formulas for the mass coefficient of sensitivity Sσvp=(1/vp)dvp/dσ m2/kg and phase velocity gradients −dvp(f)/df and −dvp(h1)/dh1, where f and h1 stand, respectively, for frequency of the Love wave and thickness of the guiding surface layer. We also established analytical formulas that relate the mass sensitivity Sσvp with 1) the relative slope (gradient) −(1/vp)dvp/dh1 of the phase velocity dispersion curve vp(h1), and 2) the relative slope (gradient) −(1/vp)dvp/df of the phase velocity dispersion curve vp(f). These analytical formulas have been developed using full wave theory. We have discovered that the maxima of the mass sensitivity Sσvpf, Sσvph1 and maxima of the relative gradients (-(1/vp)dvp)⁄df, −(1/vp)dvp/dh1, occur virtually at the same values of fandh1. Comparing with the Perturbation Method and Finite Element Method (FEM), the analytical formulas established in this paper display some advantages, such as very low execution time of the mass sensitivity , and perhaps more importantly a possibility for a direct parametric optimization of the Love wave waveguide as a function of its material parameters, thickness of the guiding surface layer and wave frequency .
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•Exact analytical model of Love wave sensors based on first principles was developed.•Exact analytical formulas for mass sensitivity of Love wave sensors were developed.•New formulas can significantly accelerate the design process of Love wave sensors.•Mass sensitivity is proportional to gradient of the phase velocity dispersion curves.
This paper argues that there are important irrational elements to love. In the philosophical literature, we typically find that love is either thought of as rational or arational and that any ...irrational elements are thought to be defective, or extraneous to love itself. We argue, on the contrary, that irrationality is in part connected to what we find valuable about love. We focus on 3 basic elements of love: 1) Whom you love 2) How much you love them 3) How much of a role love plays in your life And in each case, we argue that love can be irrational and valuable.
The aim of this paper is to establish a series of links between some of the main religious formulas that arise in Judaism and Christianism and the romantic and confluent love characteristic of modern ...societies. To carry it out, firstly, we analyze love in historical Judaism, reflecting on the Ahavah formula, the predominant formula in this religious context. Secondly, to study the Christian drift of love, we first analyze how the emergence of this new religious faith (Christianism) provokes a change in the Jewish way of understanding it (love). Subsequently, we analyze some of the three main formulas in which love materializes in Christianism: Agape, Caritas, and Amor Sui. Regarding modern love, we first carry out a contextualization focused on the processes of secularization and individualization, and their impact on it. Afterwards, we present the main features that define both romantic and confluent love, and finally, we analyze the Judeo-Christian characters inherited for such types of love. The methodology used focused on a literature review and theoretical reflection based on this review. The research carried out allows us to establish sociological continuities between Judeo-Christian religious love and modern secular love in the terms used throughout the paper.
What is love? What is it to be loved? Can we trust love? Is it overrated?
These are just some of the questions Tony Milligan pursues in his novel exploration of a subject that has occupied ...philosophers since the time of Plato. Tackling the mood of pessimism about the nature of love that reaches back through Schopenhauer and Kierkegaard, he examines the links between love and grief, love and nature, and between love of others and loving oneself. We love too few things in the world, Milligan concludes, adding that we need to be loved too, to appreciate our own value and the worth of life itself.
It is commonly assumed, but has rarely been demonstrated, that sex differences in behaviour arise from sexual dimorphism in the underlying neural circuits. Parental care is a complex stereotypic ...behaviour towards offspring that is shared by numerous species. Mice display profound sex differences in offspring-directed behaviours. At their first encounter, virgin females behave maternally towards alien pups while males will usually ignore the pups or attack them. Here we show that tyrosine hydroxylase (TH)-expressing neurons in the anteroventral periventricular nucleus (AVPV) of the mouse hypothalamus are more numerous in mothers than in virgin females and males, and govern parental behaviours in a sex-specific manner. In females, ablating the AVPV TH(+) neurons impairs maternal behaviour whereas optogenetic stimulation or increased TH expression in these cells enhance maternal care. In males, however, this same neuronal cluster has no effect on parental care but rather suppresses inter-male aggression. Furthermore, optogenetic activation or increased TH expression in the AVPV TH(+) neurons of female mice increases circulating oxytocin, whereas their ablation reduces oxytocin levels. Finally, we show that AVPV TH(+) neurons relay a monosynaptic input to oxytocin-expressing neurons in the paraventricular nucleus. Our findings uncover a previously unknown role for this neuronal population in the control of maternal care and oxytocin secretion, and provide evidence for a causal relationship between sexual dimorphism in the adult brain and sex differences in parental behaviour.
