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Preparedness levels have been shown to improve the outcomes for people who find themselves in an emergency. However, uptake of preparedness behaviors by the public prior to a major disaster is limited. This 2-part study examined perceived preparedness in the UK during the first months of the COVID-19 pandemic (Study 1), and 2 years later (Study 2).
Methods
Both studies investigated the effect of individual demographics (gender, age, perceived socioeconomic and health status) on perceived preparedness. Next, the studies examined the extent to which perceived preparedness was associated with mental health outcomes (anxiety, depression, and stress symptoms). Participants (Study 1, N = 409) completed an online survey in May to June 2020 during a national lockdown, with another sample (Study 2, N = 87) completing the same survey from March to July 2022.
Results
Across both studies, participants completed 2 to 3 different preparedness activities. Greater subjective perceptions of socioeconomic status were associated with perceived preparedness. Preparedness levels were related with better mental health, and unrelated to age and gender.
Conclusions
Encouraging the public to engage with preparedness behaviors may not only have practical benefits but also help to protect mental well-being during a disaster.
The purpose of this study was to measure and examine the levels of IgG, IgM, and Spike antibody induced by inactivated vaccines, including CoronaVac and BBIBP-CorV.
Methods
Two groups of healthy adults over 18 years old (50 participants per group), who had previously received 1 dose of either BBIBP-CorV or CoronaVac and receiving either a homologous booster of BBIBP-CorV or a heterologous booster of CoronaVac. Serum IgG, IgM, and Spike antibody levels against SARS-COV-2 were measured using magnetic particle chemiluminescence immunoassay and the ELISA method.
Results
The results showed that both spike antibody and IgG/IgM antibodies elicited by a CoronaVac booster following 1 dose of BBIBP-CorV were significantly higher than those elicited by either a homologous BBIBP-CorV booster or a heterologous BBIBP-CorV booster. The Spike antibody against SARS-COV-2 induced by the heterologous CoronaVac booster reached 200.3, which is substantially greater than that induced by the homologous BBIBP-CorV booster (127.5 pg/mL). Conversely, the Spike antibody against SARS-COV-2 induced by the heterologous BBIBP-CorV booster reached 53.93 pg/mL, which is substantially greater than that induced by the homologous CoronaVac booster (9.60 pg/mL).
Conclusions
In summary, CoronaVac is immunogenic as a booster dose following 1 dose of BBIBP-CorV and is immunogenically superior to both the homologous booster and the heterologous BBIBP-CorV booster.
The study aimed to determine the patterns of the vestibular and ocular motor findings in cerebellar infarction (CI).
Methods:
We retrospectively analyzed vestibular and ocular motor test results in 23 CI patients and 32 acute unilateral vestibulopathy (AUVP) patients.
Results:
Among CI cases, the posterior inferior cerebellar artery (PICA) was the most commonly affected territory. Vertigo is predominantly observed in patients with infarctions affecting PICA or anterior inferior cerebellar artery (AICA). Lesions involving the superior cerebellar artery (SCA) mainly result in dizziness. Saccadic intrusion and oscillation, abnormal bilateral smooth pursuit (SP) and abnormal saccades were more prevalent in the CI group than in the AUVP group (all p < 0.05). Horizontal saccades were abnormal in 11 patients (47.8%) with CI. All AUVP patients had normal horizontal saccades. Horizontal SP was impaired in 13 patients (56.5%) with CI, with decreased gain toward both sides in 10 and toward 1 side in 3. Impaired horizontal SP was noted in nine patients (28.1%) with AUVP, with decreased gain toward the contralesional side in all cases. A total of 26.3% (5/19) of patients with CI exhibited subjective visual vertical (SVV) deviation toward the affected side and 31.6% (6/19) toward the unaffected side. In patients with AUVP, 70.0% (21/30) showed SVV deviation toward the affected side.
Conclusions:
Vertigo is mainly seen in PICA or AICA infarctions. SCA lesions mostly cause dizziness. Saccadic intrusion and oscillation, abnormal bilateral SP and abnormal saccades contribute to the diagnosis of CI. Moreover, SVV deviation varies depending on the cerebellar structures involved.
This study investigated the factors influencing growers in the selection of seed suppliers in the Amhara region of Ethiopia. A total of 385 grower were selected using simple random sampling method. A mixed logit regression model was used to the analysis data that have 1284 observation. The result reveal that high seed purity was negatively related to the selection of alternative supplier. As the rating of seed purity increased, the probability of selecting very high-quality seed suppliers also increased. The availability of tree seeds during the desired time period had a significant influence. Higher perceived availability, categorized as high or very high, decreased the likelihood of promptly obtaining seeds from suppliers compared to when the seeds were not available. The evaluation rating of germination increases the probability of choosing suppliers with high or very high germination rates in the respective category. Growers with more experience are more likely to choose private enterprise suppliers. The implementation of appropriate quarantine measures has a positive influence on supplier selection for the groups AFE and EFD-CEC. Training in tree seed collection reduces the likelihood of choosing enterprise and AFE suppliers. Moreover, the successful production of a greater number of tree species in the nursery positively influences the probability of sourcing from enterprise suppliers. This analysis highlights the significance of seed purity, germination, quarantine measures, and the number of species produced, as factors that influence the likelihood of selecting alternative seed suppliers.
To delay paying wages to seamen, the late Stuart Navy issued them instead with “tickets” to be redeemed for cash after months or years of delay. Seamen often sold the tickets at deep discounts to ticket buyers, who became government creditors for unpaid wages, one of the largest items in the national debt. Ticket buyers were savagely attacked in pamphlets. This article is a preliminary exploration of ticket buying, focusing on the large minority of buyers who were women. It shows that many of them were in fact the wives and widows of the seamen, working in the crowded streets around the Navy Office and in the cottages of the maritime communities nearby. Navy pay books are introduced as a key source; the business of one trader is evaluated using her financial papers, and the work of others assessed from probate records. Ticket buying opened up related opportunities for women as brokers of deals and as professional receivers of wages. But while pawning could be used as protection against the growing hazard of unpaid tickets, even with deep discounts it was difficult to make even a moderate return in the trade. Ticket buying was not a route to fortunes.
We investigate the end extendibility of models of arithmetic with restricted elementarity. By utilizing the restricted ultrapower construction in the second-order context, for each $n\in \mathbb {N}$ and any countable model of $\mathrm {B}\Sigma _{n+2}$, we construct a proper $\Sigma _{n+2}$-elementary end extension satisfying $\mathrm {B}\Sigma _{n+1}$, which answers a question by Clote positively. We also give a characterization of the countable models of $\mathrm {I}\Sigma _{n+2}$ in terms of their end extendibility, similar to the case of $\mathrm {B}\Sigma _{n+2}$. Along the proof, we introduce a new type of regularity principle in arithmetic called the weak regularity principle, which serves as a bridge between the model’s end extendibility and the amount of induction or collection it satisfies.
We collected data on every tenure-track (TT) faculty member in the 122 PhD-granting political science departments in the United States to identify which graduate programs place faculty members in our discipline’s research universities. The top 20% of departments produced 75% of all faculty and the bottom 50% accounted for less than 5% of all TT faculty members at a research university. Forty-nine programs did not have a single graduate placed in a TT position at a PhD-granting department in the past 10 years, and 18 programs did not have a single graduate in a TT position at a PhD-granting department at all. The overwhelming majority of TT faculty members are at a lower or equally ranked department. The results have important implications for prospective graduate students and the future of our discipline.
The turbulent boundary layer is a region where both preferential dissipation of energy and the production of significant vorticity arises as a consequence of the strong velocity gradients. Previous work has shown that, following a Reynolds decomposition, the purely fluctuating component of the enstrophy production is the dominant term. Near the wall this varies in a complex manner with height. In this study, we additionally decompose the strain rate and vorticity terms into normal and non-normal components using a Schur decomposition and are able to explain all these features in terms of contributions at different heights from constituents involving different combinations of normal and non-normal quantities. What is surprising about our results is that, while the mean shear and the action of larger-scale structures should mean that non-normal effects are of over-riding importance at the wall, the most important individual term involves the fluctuating normal strain rate in the transverse direction. In part, this is because of a strong correlation between this term and the non-normal vorticity with a transverse axis, but it is also the case that individual components of the purely non-normal enstrophy production are negative in the mean. Hence, a local strain rate that is orthogonal to the direction of the dominant mean and fluctuating shear plays a crucial role in amplifying vorticity that is yet to have developed a local component. These conclusions support the emphasis in the control literature on the transverse velocity components at the wall.
A novel high-selectivity ultra-wideband (UWB) balanced bandpass filter (BPF) with harmonic suppression characteristics is proposed. The differential-mode UWB passband is constructed using quarter-wavelength asymmetrical parallel-coupled transmission lines, resulting in sharp filtering selectivity, while common-mode noises are suppressed by loading the T-type stubs. A simple design method of integrating bandstop filter branches into the BPF for third harmonic suppression without increasing the circuit size is described and confirmed. A planar high-selectivity balanced BPF prototype is manufactured and measured at 2.6 GHz with a measured 3-dB fractional bandwidth of 108% to validate the framework principle. More importantly, with third harmonic suppression characteristics, the measured out-of-band rejection is more than 20 dB, spanning 4.35 GHz until 12.4 GHz.
The January 6th insurrection at the U.S. capital was an eye-opening moment for many Americans. With the 2024 election cycle in swing, members of the Democratic Party are using January 6th as a rallying call for the need to protect democracy. But were the events of January 6th viewed equally among liberals? We argue that the events of January 6th resonate for a particular demographic well-informed liberal White voters. We argue that liberal minority voters will feel the racial undertones of January 6th more than White liberals. Furthermore, we examine how voters of different races viewed the events of January 6th and how views on race relations impact their perceptions of January 6th. We find that White liberals are less angry about race relations in the aftermath of January 6th, and while they viewed January 6th as an insurrection and blamed Trump and Republicans in Congress for their role, they are less likely to say that racism and White Supremacy motivated the insurrectionists. This paper indicates that race plays a key role in political perceptions, even among those who hold similar political ideologies.
We examined the association between influenza vaccination policies at acute care hospitals and influenza vaccination coverage among healthcare personnel for the 2021–22 influenza season. Mandatory vaccination and masking for unvaccinated personnel were associated with increased odds of vaccination. Hospital employees had higher vaccination coverage than licensed independent practitioners.
Is smaller better for economic development? We argue that states’ past population size can be a powerful determinant of current development. Among states that gained independence shortly after World War II, states with smaller populations in their early years of independence had stronger incentives to adopt more open trade policies and employ larger public sectors. These policies “embedded” smaller newly independent states into the global economy during the Cold War, building the foundations for more inclusive economic institutions and greater political stability. When the Cold War ended, smaller newly independent states were more likely to have developed the institutional infrastructure to prosper in the globalizing yet politically volatile early twenty-first century. We test this argument by examining the developmental trajectories of 83 states that became independent between 1946 and 1975. Newly independent states with smaller populations during this period have had on average higher levels and rates of post-Cold War development. They also had more open trade policies and larger public sectors during the Cold War. These policies correlate with more inclusive economic institutions and greater political stability in the post-Cold War era. A comparative case study of Oman and the People’s Democratic Republic of Yemen illustrates the mechanisms linking the size of newly independent states at independence and their post-Cold War development.
In the second half of the ninth century, a new period of confrontation between the Armenian and Byzantine Churches began. The goal of Byzantine religious policy was the abolition of the independence of the Armenian Church and its unification with the imperial Church. In his letters addressed to the ecclesiastical and political leaders of Armenia, the patriarch Photios proposed that they abandon Monophysitism and accept Chalcedonianism. Under this religious veil were disguised the empire's real political, cultural and socio-economic goals. Although Photios could not achieve the final unification of the two Churches, his mission did bring about a temporary religious rapprochement between the Armenians and the Greeks.
Inspired by laboratory experiments showing internal waves generated by a plume impinging upon a stratified fluid layer (Ansong & Sutherland. 2010 J. Fluid Mech.648, 405–434), we perform large eddy simulations in three dimensions to examine the structure and source of internal waves emanating from the top of a plume that rises vertically into stratification whose strength ranges over two orders of magnitude between different simulations. Provided the plume is sufficiently energetic to penetrate into the stratified layer, internal waves are generated with frequencies in a relatively narrow band moderately smaller than the buoyancy frequency. Through adaptations of ray theory including viscosity and use of dynamic mode decomposition, we show that the waves originate from within the turbulent flow rather than at the turbulent/non-turbulent interface between the fountain top and the surrounding stratified fluid.