The Mental Health Impact of Intensive Mothering Ideology on Contemporary Mothers

This research explored how exposure to Intensive Mothering Ideology (IMI) may impact maternal mental health in modern mothers. Susan Hays coined the IMI term in 1996, inspiring a significant body of research around the topic which has shown that mothers generally process intensive mothering discourse contextually with consideration for unique era-specific societal challenges (Constantinou, Varela, & Buckby, 2021; Hays, 1996). To this author’s knowledge, there have been no general examinations of the impact of IMI on maternal mental health since before the outbreak of COVID-19 (though there have been a few pointed examinations of IMI in relation to the pandemic). This research aims to understand mothers’ experiences around intensive mothering discourse during the summer of 2022 (when seventeen semi-structured interviews were conducted) with respect to the unique social context of that time, how IMI content was consumed, processed, and internalized, and to what extent their experiences may have impacted their psychological wellbeing. Using the Auerbach and Silverstein (2003) method, interview transcripts were methodically coded and analyzed to uncover relevant text, repeating ideas (62 total), themes (14 total), and theoretical constructs (six total which were validated through study member checks) (Auerbach & Silverstein, 2003). Results showcase participant reflections on the roles that make up their identities, their values around mothering including external support systems, the pressures they feel to mother in a certain way, how they conceptualize the “ideal” mother, their relationships to social media, their experiences mothering during COVID-19, and their mental and physical wellbeing. Discussion contextualizes results within intersecting theories and sews the data together in light of these theories to craft a narrative that meaningfully represents participant experiences

Weak Localization and Integer Quantum Hall Effect in a Periodic Potential

We consider magnetotransport in a disordered two-dimensional electron gas in the presence of a periodic modulation in one direction. Existing quasiclassical and quantum approaches to this problem account for Weiss oscillations in the resistivity tensor at moderate magnetic fields, as well as a strong modulation-induced modification of the Shubnikov-de Haas oscillations at higher magnetic fields. They do not account, however, for the operation at even higher magnetic fields of the integer quantum Hall effect, for which quantum interference processes are responsible. We then introduce a field-theory approach, based on a nonlinear sigma model, which encompasses naturally both the quasiclassical and quantum-mechanical approaches, as well as providing a consistent means of extending them to include quantum interference corrections. A perturbative renormalization-group analysis of the field theory shows how weak localization corrections to the conductivity tensor may be described by a modification of the usual one-parameter scaling, such as to accommodate the anisotropy of the bare conductivity tensor. We also show how the two-parameter scaling, conjectured as a model for the quantum Hall effect in unmodulated systems, may be generalized similarly for the modulated system. Within this model we illustrate the operation of the quantum Hall effect in modulated systems for parameters that are realistic for current experiments.Comment: 15 pages, 4 figures, ReVTeX; revised version with condensed introduction; two figures taken out; reference adde

Zero-divisor graphs of nilpotent-free semigroups

We find strong relationships between the zero-divisor graphs of apparently disparate kinds of nilpotent-free semigroups by introducing the notion of an \emph{Armendariz map} between such semigroups, which preserves many graph-theoretic invariants. We use it to give relationships between the zero-divisor graph of a ring, a polynomial ring, and the annihilating-ideal graph. Then we give relationships between the zero-divisor graphs of certain topological spaces (so-called pearled spaces), prime spectra, maximal spectra, tensor-product semigroups, and the semigroup of ideals under addition, obtaining surprisingly strong structure theorems relating ring-theoretic and topological properties to graph-theoretic invariants of the corresponding graphs.Comment: Expanded first paragraph in section 6. To appear in J. Algebraic Combin. 22 page

Schooling for conflict transformation : a case study from Northern Uganda

Civil wars impede progress towards the Millennium Development Goals. As many conflicts erupt within a short time, it is important to know what may increase the chances of sustainable peace. Access to education is a factor but relatively little is known about the contribution of what students learn in school. This thesis aims to respond to a research gap by addressing the foll owing question: 'How can schooling contribute to conflict transformation?' Significant curricular approaches that may be used after civil war - peace education, human rights education and citizenship education - are assessed for their strengths and weaknesses. As no single approach is found to be sufficient for conflict transformation, a framework is proposed based on three fundamental concepts: (i) truth seeking; (ii) reconciliation; and (iii) inclusive citizenship. This framework is examined through a qualitative case study of curriculum in seven schools in a district in northern Uganda that is emerging from a twenty-year civil war. The curriculum of four primary schools, two secondary schools, one special school and one teacher training college was studied over a three-month period. A structure of knowledge, skills and values was used to research the framework at a detailed level. It is found that schools exhibit good socialization of reconciliation values and some development of problem-solving and communication skills. There is some understanding of human rights, but little knowledge of history, or of local, national and international political/legal systems. There is minimal development of discussion and critical thinking skills. It is argued that the framework can be used to investigate other schools and to inform the design of a curriculum that can contribute to conflict transformation, with the ultimate aim of reducing the risk of civil war re-eruption

Origins of the Ambient Solar Wind: Implications for Space Weather

The Sun's outer atmosphere is heated to temperatures of millions of degrees, and solar plasma flows out into interplanetary space at supersonic speeds. This paper reviews our current understanding of these interrelated problems: coronal heating and the acceleration of the ambient solar wind. We also discuss where the community stands in its ability to forecast how variations in the solar wind (i.e., fast and slow wind streams) impact the Earth. Although the last few decades have seen significant progress in observations and modeling, we still do not have a complete understanding of the relevant physical processes, nor do we have a quantitatively precise census of which coronal structures contribute to specific types of solar wind. Fast streams are known to be connected to the central regions of large coronal holes. Slow streams, however, appear to come from a wide range of sources, including streamers, pseudostreamers, coronal loops, active regions, and coronal hole boundaries. Complicating our understanding even more is the fact that processes such as turbulence, stream-stream interactions, and Coulomb collisions can make it difficult to unambiguously map a parcel measured at 1 AU back down to its coronal source. We also review recent progress -- in theoretical modeling, observational data analysis, and forecasting techniques that sit at the interface between data and theory -- that gives us hope that the above problems are indeed solvable.Comment: Accepted for publication in Space Science Reviews. Special issue connected with a 2016 ISSI workshop on "The Scientific Foundations of Space Weather." 44 pages, 9 figure

Single Spin Asymmetry ANA_N in Polarized Proton-Proton Elastic Scattering at s=200\sqrt{s}=200 GeV

We report a high precision measurement of the transverse single spin asymmetry $A_N$ at the center of mass energy $\sqrt{s}=200$ GeV in elastic proton-proton scattering by the STAR experiment at RHIC. The $A_N$ was measured in the four-momentum transfer squared $t$ range $0.003 \leqslant |t| \leqslant 0.035$ \GeVcSq, the region of a significant interference between the electromagnetic and hadronic scattering amplitudes. The measured values of $A_N$ and its $t$-dependence are consistent with a vanishing hadronic spin-flip amplitude, thus providing strong constraints on the ratio of the single spin-flip to the non-flip amplitudes. Since the hadronic amplitude is dominated by the Pomeron amplitude at this $\sqrt{s}$, we conclude that this measurement addresses the question about the presence of a hadronic spin flip due to the Pomeron exchange in polarized proton-proton elastic scattering.Comment: 12 pages, 6 figure

Measurement of the Bottom-Strange Meson Mixing Phase in the Full CDF Data Set

We report a measurement of the bottom-strange meson mixing phase \beta_s using the time evolution of B0_s -> J/\psi (->\mu+\mu-) \phi (-> K+ K-) decays in which the quark-flavor content of the bottom-strange meson is identified at production. This measurement uses the full data set of proton-antiproton collisions at sqrt(s)= 1.96 TeV collected by the Collider Detector experiment at the Fermilab Tevatron, corresponding to 9.6 fb-1 of integrated luminosity. We report confidence regions in the two-dimensional space of \beta_s and the B0_s decay-width difference \Delta\Gamma_s, and measure \beta_s in [-\pi/2, -1.51] U [-0.06, 0.30] U [1.26, \pi/2] at the 68% confidence level, in agreement with the standard model expectation. Assuming the standard model value of \beta_s, we also determine \Delta\Gamma_s = 0.068 +- 0.026 (stat) +- 0.009 (syst) ps-1 and the mean B0_s lifetime, \tau_s = 1.528 +- 0.019 (stat) +- 0.009 (syst) ps, which are consistent and competitive with determinations by other experiments.Comment: 8 pages, 2 figures, Phys. Rev. Lett 109, 171802 (2012

Menopausal Hormone Therapy and Subclinical Cardiovascular Disease in Women With and Without Human Immunodeficiency Virus

Background: Estrogen-based hormone therapy (HT) may have beneficial cardiovascular effects when initiated in early menopause. This has not been examined in women with human immunodeficiency virus (HIV), who have heightened immune activation and cardiovascular risks. Methods: Among 609 postmenopausal women (1234 person-visits) in the Women's Interagency HIV Study, we examined the relationship of ever HT use (oral, patch, or vaginal) with subclinical atherosclerosis: carotid artery intima-media thickness (CIMT), distensibility, and plaque assessed via repeated B-mode ultrasound imaging (2004-2013). We also examined associations of HT with cross-sectional biomarkers of immune activation and D-dimer. Statistical models were adjusted for sociodemographic, behavioral, and cardiometabolic factors. Results: Women (mean age, 51 years; 80% HIV positive) who ever used HT at baseline were older, and more likely to be non-Hispanic White and report higher income, than never-users. Women who ever used HT had 43% lower prevalence of plaque (prevalence ratio, 0.57 [95% confidence interval {CI},. 40-.80]; P <. 01), 2.51 μm less progression of CIMT per year (95% CI, -4.60, to -.41; P =. 02), and marginally lower incidence of plaque over approximately 7 years (risk ratio, 0.38 [95% CI,. 14-1.03; P =. 06), compared with never-users, adjusting for covariates; ever HT use was not associated with distensibility. These findings were similar for women with and without HIV. Ever HT use was associated with lower serum D-dimer, but not with biomarkers of immune activation after covariate adjustment. Conclusions: HT may confer a subclinical cardiovascular benefit in women with HIV. These results begin to fill a knowledge gap in menopausal care for women with HIV, in whom uptake of HT is very low