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Nuclear masses and binding energies are some of the first nuclear properties met in high school physics, and can be used to introduce radioactive decays, fusion, and fission. With relatively little extension, they can also illustrate fundamental concepts in nuclear physics, such as shell structure and pairing, and to discuss how the elements around us were formed in stars. One way of visualising these nuclear properties is through the nuclide chart, which maps all nuclides as a function of their proton and neutron numbers. Here we use the nuclide chart to illustrate various aspects of nuclear physics, and present 3D visualisations of it produced as part of the binding blocks project. [ABSTRACT FROM AUTHOR]

We investigated the structure of the low density regions of the inner crust of neutron stars using the Hartree–Fock–Bogoliubov (HFB) model to predict the proton content Z of the nuclear clusters and, together with the lattice spacing, the proton content of the crust as a function of the total baryonic density . The exploration of the energy surface in the configuration space and the search for the local minima require thousands of calculations. Each of them implies a HFB calculation in a box with a large number of particles, thus making the whole process very demanding. In this work, we apply a statistical model called Gaussian process emulator that makes the exploration of the energy surface ten times faster. We also present a novel treatment of the HFB equations that leads to an uncertainty on the total energy of per particle. Such a high precision is necessary to distinguish neighbour configurations around the energy minima. [ABSTRACT FROM AUTHOR]

We present a new teaching and outreach activity based around the construction of a three-dimensional chart of isotopes using bricks5. The activity, binding blocks, demonstrates nuclear and astrophysical processes through a seven-meter chart of all nuclear isotopes, built from over 26 000 bricks. It integrates A-Level and GCSE curricula across areas of nuclear physics, astrophysics, and chemistry, including: nuclear decays (through the colours in the chart); nuclear binding energy (through tower heights); production of chemical elements in the cosmos; fusion processes in stars and fusion energy on Earth; as well as links to medical physics, particularly diagnostics and radiotherapy. [ABSTRACT FROM AUTHOR]

Provides a guide on understanding the signs of intracranial pressure. Ways of using the guide; Levels of consciousness; Changes in the motor and sensory functions of the extremities; Changes in the pupils and vital signs of the patient.

During a soil zoological expedition to São Tomé and Príncipe in 2010 by the California Academy of Sciences, millipedes of the genus Globanus were collected. Samples of G. marginescaber (Karsch, 1884) and G. integer (Karsch, 1884) were recovered in addition to those containing a new species. Globanus drewesi sp. nov. is described and additional records, illustrations, and descriptive notes are given for the other two species. A key to all three species of the genus is provided, and a distribution map is presented. The monotypic genus Lobogonus Demange, 1971, which includes L. trilobatus Demange, 1971, from Sierra Leone, mainland western Africa, is revalidated and removed from synonymy under Globanus. Lobogonus is illustrated from a type specimen.

A number of theoretical approaches suggest that gender inequity may give rise to health risks for men. This study undertook a multilevel analysis to ascertain if state-level measures of gender inequity are predictors of men's mortality in the United States. Data for the analysis were taken primarily from the National Longitudinal Mortality Study, which is based on a random sample of the non-institutionalised population. The full data set included 174,703 individuals nested within 50 states and had a six-year follow-up for mortality. Gender inequity was measured by nine variables: higher education, reproductive rights, abortion provider access, elected office, management, business ownership, labour force participation, earnings and relative poverty. Covariates at the individual level were age, income, education, race/ethnicity, marital status and employment status. Covariates at the state level were income inequality and per capita gross domestic product. The results of logistic multilevel modelling showed a number of measures of state-level gender inequity were significantly associated with men's mortality. In all of these cases greater gender inequity was associated with an increased mortality risk. In fully adjusted models for all-age adult men the elected office (OR 1.05 95% CI 1.01–1.09), business ownership (OR 1.04 95% CI 1.01–1.08), earnings (OR 1.04 95% CI 1.01–1.08) and relative poverty (OR 1.07 95% CI 1.03–1.10) measures all showed statistically significant effects for each 1 standard deviation increase in the gender inequity z-score. Similar effects were seen for working-age men. In older men (65+ years) only the earnings and relative poverty measures were statistically significant. This study provides evidence that gender inequity may increase men's health risks. The effect sizes while small are large enough across the range of gender inequity identified to have important population health implications.

Theoretical approaches suggest that gender inequity increases men's health risks. Previous findings from the United States support this contention, however only a small number of health outcomes have been explored. This study extends the range of health outcomes examined by using a cross-sectional, multilevel analysis to investigate whether measures of state-level gender inequity are predictors of men's self-rated health. Data were derived primarily from the Behavioral Risk Factor Surveillance System and the full-case data set included 116,594 individuals nested within 50 states. Gender inequity was measured with nine variables: higher education, women's reproductive rights, abortion provider access, elected office, management, business ownership, labour force participation, earnings and relative poverty. Covariates at the individual level were age, income, education, race/ethnicity, marital status and employment status. Covariates at the state level were income inequality and gross domestic product per capita. In fully adjusted models for all-age men the reproductive rights (OR 1.06 95% CI 1.01-1.11), abortion provider access (OR 1.11 95% CI 1.05-1.16) and earnings (OR 1.06 95% CI 1.02-1.12) measures all predicted an increased risk of men reporting poorer self-rated health for each 1 standard deviation increase in the gender inequity z-score. The most consistent effect was seen for the 65+ age group where the reproductive rights (OR 1.09 95% CI 1.03-1.16), abortion provider access (OR 1.15 95% CI 1.09-1.21), elected office (OR 1.06 95% CI 1.01-1.11) and earnings (OR 1.10 95% CI 1.04-1.16) measures all showed a significant effect. These findings provide evidence that some aspects of gender inequity increase the risk of poorer self-rated health in men. The study contributes to a growing body of literature implicating gender inequity in men's health patterns.

Abstract Objective: To assess the uptake of Medicare Benefit payments for non‐directive pregnancy support counselling which commenced in November 2006. Methods: Counts of services for pregnancy counselling from 1 July 2007 to 30 June 2012, where a Medicare rebate was paid, were used to calculate age‐, state‐ and provider‐specific rates per 100,000 women aged 15–44 years, and rates per 100,000 births for each study year. Results: Rates of Medicare rebates for pregnancy counselling were low, with a mean of 90.6 services per 100,000 women recorded over the study period. GP services were accessed most frequently, while services provided by allied health professionals averaged less than 5% of those for GPs. The overall rate of services fell in all jurisdictions except Victoria/Tasmania, although services provided by allied health professionals remained steady or rose in all jurisdictions over the study period. Conclusions: There has been a low uptake of pregnancy counselling covered by the Medicare Benefits Item numbers introduced in 2006, especially for services provided by allied health professionals. Due to a lack of available data, the impact on abortion rates is unknown. Implications: Provision of Medicare rebates for pregnancy counselling does not appear to be an effective way of assisting women with unintended pregnancies.

Abstract Objectives: To determine the proportion of women who have pregnancy terminations as private patients in Victoria who do not intend to claim a procedure fee rebate from Medicare, to compare characteristics of women who intend to submit a Medicare claim with those who do not and to compare the findings to the results from a similar study conducted in NSW in 1992. Design, setting and participants: This was a cross‐sectional observational study over a 12‐week period. Women having a pregnancy termination service in eight large Victorian private clinics were invited to complete a brief written questionnaire. Outcome measurer: The proportion of women who did not have a Medicare card or who had a Medicare card but did not intend to use it to claim from Medicare. Results: Of the 1,329 women who responded, 13.1% either did not have a Medicare card or did not intend to use their card to claim a Medicare rebate. A further 20.7% of respondents were not sure about whether they would submit a claim. Women who intended to claim a Medicare rebate were different from women who did not according to age, language spoken at home, residency, citizenship and distance travelled to the service. These results are very similar to the findings from the 1992 NSW study. Conclusion: Between 13.1% and 33.8% of private Victorian pregnancy terminations were estimated to not be recorded at the Health Insurance Commission. Health Insurance Commission records of Medicare rebate claims for pregnancy terminations are an incomplete and somewhat biased record of the services that are provided and are likely to have been so for some time.

The decades-long one-child policy in China has led to a growing number of older individuals with only one child. The Elderly Family Planning Subsidy (EFPS) policy was introduced to provide extra financial support to this group and was expanded nationwide in 2012. This study investigated the relationship between EFPS use and health among EFPS-eligible older Chinese using data from the China Health and Retirement Longitudinal Study. A total of 1,981 respondents were eligible for EFPS (i.e. aged 60 and above, had only one child, or were rural residents with two daughters). Respondents self-reported if they received EFPS in 2011, 2013, and 2015 and were followed up to 2018. Propensity score matching was used to match EFPS non-users with users based on their probability of using EFPS. Among the EFPS-eligible respondents, 256 (12.92%) used the benefit. Analysis revealed no significant differences between EFPS users and non-users with respect to mortality and other health outcomes (i.e. self-reported health, cognition, activities of daily living, chronic diseases, and depressive symptoms). Findings do not provide evidence that EFPS improved the short-term health of older Chinese with only one child.

Housing insecurity has been shown to be associated with worse mental health. However, previous studies mostly examined one aspect of housing insecurity (e.g., affordability), and few focused on older adults. This study examined the relationship between perceived housing problems and depressive symptoms among middle-aged and older Americans. Data from the Health and Retirement Study between 2006 and 2018 were used. A total of 7,119 respondents (aged 50+ at baseline in 2006) were followed up every 4 years. Respondents self-reported the status, severity, and duration of their housing problems. Depressive symptoms were assessed by the Center for Epidemiological Studies-Depression Scale. Mixed-effect models examined the association between perceived housing problems and depressive symptoms. Results show about 5%-7% of respondents had housing problems during every study visit and 5.73% of them experienced persistent housing problems over 12 years. Having housing problems was associated with a higher risk of depressive symptoms (incidence risk ratio = 1.29, 95% CI = 1.23, 1.36). A dose-response relationship was observed in the severity and duration of housing problems, with a greater increase of depressive symptoms risk among those experiencing more severe or prolonged housing problems. The dose-response pattern highlighted the importance of early intervention and persistent assistance to those experiencing housing problems.

Background: Previous research has examined how fruit and vegetable consumption may affect cognitive impairment among older adults. However, knowledge regarding the behavioral change in fruit and vegetable consumption remains limited in the Chinese older adult population. This research aimed to fill the literature gap., Methods: We used data from five waves of the Chinese Longitudinal Healthy Longevity Study (2005-2018, observations = 18,856 from 11,388 participants) and selected older adult participants (65 years old or above). A behavioral change was defined as a consumption change in the study sample. Cognitive impairment was measured based on the mini-mental state examination. We used the Cox multi-state model as the major statistical analysis., Results: Chinese older adults who transitioned from non-daily to daily consumption of vegetables had lower odds of reporting cognitive impairment deteriorating from normal cognitive function to severe, compared with those who did not change their consumption behavior (HR [hazard ratio] = 0.88, 95% CI 0.80, 0.97; p < 0.05). All transitions in fruit consumption were negatively associated with cognitive changes from normal cognitive function to mild-moderate cognitive impairment. In our additional stratified analysis examining rural-urban disparity, we observed similar significant findings among rural older adults (Vegetable consumption change: HR = 0.83, 95% CI 0.75, 0.93; p < 0.01) but not urban older adults., Conclusion: Behavioral change in consumption of vegetables may affect Chinese older adults' cognitive health. Future interventions should focus on the critical role of behavioral change in vegetable consumption in reducing older adults' cognitive impairment. However, the contradictory findings of fruit consumption warrant further investigation to draw a conclusive claim regarding its benefits for cognitive health., (© 2024. The Author(s), under exclusive licence to European Geriatric Medicine Society.)

The study compared care source typologies for older adults in China and the United States. Data from the 2014 U.S. Health and Retirement Study and the 2013 China Health and Retirement Longitudinal Study were used. The respondents included community-dwelling older adults aged 65 years or older with at least one limitation in activities of daily living (ADLs) or instrumental ADLs (IADLs) ( N China = 2476, N US = 2898). Respondents reported whether they received assistance from spouse, child/grandchild, relatives, others, and formal helpers. Latent class analysis and multinomial logistic regression were applied. Four classes were identified in China and the U.S, separately. In both countries, ADLs and IADLs were strong determinants of care source typologies. Care sources were more diverse and included formal assistance among older Americans. Older Chinese relied largely on their spouses and children/grandchildren for support. Policy efforts are needed to expand formal long-term services and supports, particularly in China., Competing Interests: Declaration of Conflicting InterestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

Purpose: This study examined the relationship between sexual identities and perception of risks associated with illicit drug use among a nationally representative sample of US adults., Methods: We analyzed data from five waves of the National Survey on Drug Use and Health (NSDUH, 2015-2019), with 205,418 adult participants. Six survey questions assessing participants' perceptions of the risks associated with illicit drug use (LSD, heroin, and cocaine) were subjected to principal component analysis. Sex-stratified ordered logistic regressions were used to explore potential disparities in perceptions regarding the risk associated with illicit drug use among sexual minority identifiers., Results: Among male participants, approximately 11.3% and 1.8% of them perceived illicit drug use as moderate and low risks, respectively. About 6.0% of female participants perceived illicit drug use as moderate risk, and 1.1% of female participants perceived it as low risk. The sex-stratified regression models demonstrated that participants who identified as lesbian/gay or bisexual all had higher odds of reporting low perception of illicit drug use risks as compared to their heterosexual counterparts (all p < 0.01)., Conclusions: Illicit drug use prevention strategies should consider risk perception disparities by sexual minority populations., Competing Interests: Declaration of competing interest None., (Copyright © 2024 Elsevier Ltd. All rights reserved.)