Coupled channels dynamics in the generation of the Ω(2012)\Omega (2012) resonance

We look into the newly observed $\Omega (2012)$ state from the molecular perspective in which the resonance is generated from the $\bar{K} \Xi^*$, $\eta \Omega$ and $\bar{K} \Xi$ channels. We find that this picture provides a natural explanation of the properties of the $\Omega (2012)$ state. We stress that the molecular nature of the resonance is revealed with a large coupling of the $\Omega (2012)$ to the $\bar{K} \Xi^*$ channel, that can be observed in the $\Omega (2012) \rightarrow \bar{K} \pi \Xi$ decay which is incorporated automatically in our chiral unitary approach via the use of the spectral function of $\Xi^*$ in the evaluation of the $\bar{K} \Xi^*$ loop function.Comment: 11 pages, 8 figure

Description of the Ξc\Xi_c and Ξb\Xi_b states as molecular states

In this work we study several $\Xi_c$ and $\Xi_b$ states dynamically generated from the meson-baryon interaction in coupled channels, using an extension of the local hidden gauge approach in the Bethe-Salpeter equation. These molecular states appear as poles of the scattering amplitudes, and several of them can be identified with the experimentally observed $\Xi_c$ states, including the $\Xi_c(2790)$, $\Xi_c(2930)$, $\Xi_c(2970)$, $\Xi_c(3055)$ and $\Xi_c(3080)$. Also, for the recently reported $\Xi_b(6227)$ state, we find two poles with masses and widths remarkably close to the experimental data, for both the $J^P=1/2^-$ and $J^P=3/2^-$ sectors.Comment: 27 pages, 24 tables, 2 figure

Health Communications Trial with a Resistant Population to Increase Public Health Compliance during a Pandemic

Background: Georgia has among the worst rates of COVID-19 hospitalization and death rates in the nation. Many identifying as politically conservative resist public health mitigation measures, similar to populations in other politically conservative geographical areas. There are limited peer-reviewed public health communications designed for this population. We aimed to determine if an intervention using a fear appeal approach with efficacy during a pandemic can positively affect knowledge, attitude, perception, and/or behavior (KAP) in Georgia with this population. Methods: We delivered online video stimuli tailored to the geocultural characteristics of the target population. designed to stimulate fear, encourage efficacy, and counter mis- and disinformation. It used three routes to affect participants: narrative, direct messaging, and non-message cues. We measured risk aversion and conspiratorial ideation as moderating psychological factors using psychological batteries. Census and voting data were used to identify a convenience sample of 829 Georgia adults in an outer Atlanta suburb. Results: Exposure to the video, moderated by risk aversion, resulted in increased recommended mitigating behavior to prevent COVID-19 (13.7%, 95% CI: 2.7% to 24.7%,) and increased positive attitude toward the recommendations (7.7%, 95% CI: 5.9% to 9.3%). Exposure to the video, moderated by conspiratorial ideation, resulted in an increase in perception of COVID-19 risk (7.6% 95% CI: 1.8% to 13.5%) among participants. Conclusions: An intervention using a fear appeal approach with efficacy during a pandemic can positively affect attitude and risk perception of a politically conservative population. Scaling similar interventions with resistant geocultural populations has promise of increasing adherence to public health recommendations. The moderating factor of conspiratorial ideation is relevant given conspiracies during pandemics, such as COVID-19. This multidisciplinary study contributes to the extant literature by providing insights of populations influenced by contrary political attitudes

Changes in soil carbon, nitrogen, and phosphorus due to land-use changes in Brazil

In this paper, soil carbon, nitrogen and phosphorus concentrations and stocks were investigated in agricultural and natural areas in 17 plot-level paired sites and in a regional survey encompassing more than 100 pasture soils In the paired sites, elemental soil concentrations and stocks were determined in native vegetation (forests and savannas), pastures and crop-livestock systems (CPSs). Nutrient stocks were calculated for the soil depth intervals 0-10, 0-30, and 0-60 cm for the paired sites and 0-10, and 0-30 cm for the pasture regional survey by sum stocks obtained in each sampling intervals (0-5, 5-10, 10-20, 20-30, 30-40, 40-60 cm). Overall, there were significant differences in soil element concentrations and ratios between different land uses, especially in the surface soil layers. Carbon and nitrogen contents were lower, while phosphorus contents were higher in the pasture and CPS soils than in native vegetation soils. Additionally, soil stoichiometry has changed with changes in land use. The soil C:N ratio was lower in the native vegetation than in the pasture and CPS soils, and the carbon and nitrogen to available phosphorus ratio (P-ME) decreased from the native vegetation to the pasture to the CPS soils. In the plot-level paired sites, the soil nitrogen stocks were lower in all depth intervals in pasture and in the CPS soils when compared with the native vegetation soils. On the other hand, the soil phosphorus stocks were higher in all depth intervals in agricultural soils when compared with the native vegetation soils. For the regional pasture survey, soil nitrogen and phosphorus stocks were lower in all soil intervals in pasture soils than in native vegetation soils. The nitrogen loss with cultivation observed here is in line with other studies and it seems to be a combination of decreasing organic matter inputs, in cases where crops replaced native forests, with an increase in soil organic matter decomposition that leads to a decrease in the long run. The main cause of the increase in soil phosphorus stocks in the CPS and pastures of the plot-level paired site seems to be linked to phosphorus fertilization by mineral and organics fertilizers. The findings of this paper illustrate that land-use changes that are currently common in Brazil alter soil concentrations, stocks and elemental ratios of carbon, nitrogen and phosphorus. These changes could have an impact on the subsequent vegetation, decreasing soil carbon and increasing nitrogen limitation but alleviating soil phosphorus deficiency121547654780British Embass

Habitat structure: a fundamental concept and framework for urban soil ecology

Habitat structure is defined as the composition and arrangement of physical matter at a location. Although habitat structure is the physical template underlying ecological patterns and processes, the concept is relatively unappreciated and underdeveloped in ecology. However, it provides a fundamental concept for urban ecology because human activities in urban ecosystems are often targeted toward management of habitat structure. In addition, the concept emphasizes the fine-scale, on-the-ground perspective needed in the study of urban soil ecology. To illustrate this, urban soil ecology research is summarized from the perspective of habitat structure effects. Among the key conclusions emerging from the literature review are: (1) habitat structure provides a unifying theme for multivariate research about urban soil ecology; (2) heterogeneous urban habitat structures influence soil ecological variables in different ways; (3) more research is needed to understand relationships among sociological variables, habitat structure patterns and urban soil ecology. To stimulate urban soil ecology research, a conceptual framework is presented to show the direct and indirect relationships among habitat structure and ecological variables. Because habitat structure serves as a physical link between sociocultural and ecological systems, it can be used as a focus for interdisciplinary and applied research (e.g., pest management) about the multiple, interactive effects of urbanization on the ecology of soils