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AbstractThe aim was to study the effect of twin gestations in a uterus with 2 bodies on the probability of breech presentation at delivery. The hypothesis was that the probability of breech presentation was not higher than 50%. A review was undertaken of MEDLINE (1966–2004) and of the article reference list for statistical analysis of presentation at delivery among twins in a normal uterus, singleton gestations in a uterus with 2 bodies, and case studies of twins in a uterus with 2 bodies. There are 10 studies of twin gestations in a normal uterus (Twin A 3036 cases, breech presentation 22.36%; Twin B 2758 cases, breech presentation 36.87%), 2 studies of singleton gestations in a uterus with 2 bodies (297 cases, breech presentation 42.09%), and 57 case report studies of twin gestations in a uterus with 2 bodies (Twin A 56 cases, breech presentation 14.29%; Twin B 54 cases, breech presentation 18.52%). The odds ratio and chi-square test for differences in probabilities show a significantly lower incidence of breech presentation for twins in a uterus with 2 bodies compared with twins in a normal uterus (Twin A, odds ratio = 0.58; χ2 = 2.08, p > .05, Twin B, odds ratio = 0.39, χ2 = 7.67, p < .05), and singleton gestations in a uterus with 2 bodies (Twin A, odds ratio = 0.23, χ2 = 15.51, p < .05; Twin B, odds ratio = 0.31, χ2 = 10.72, p < .05). Twin gestations in a uterus with 2 bodies decrease the probability of breech presentation.

Abstract
Video games present a unique opportunity to study motor skill. First-person shooter (FPS) games have particular utility because they require visually guided hand movements that are similar to widely studied planar reaching tasks. However, there is a need to ensure the tasks are equivalent if FPS games are to yield their potential as a powerful scientific tool for investigating sensorimotor control. Specifically, research is needed to ensure that differences in visual feedback of a movement do not affect motor learning between the two contexts. In traditional tasks, a movement will translate a cursor across a static background, whereas FPS games use movements to pan and tilt the view of the environment. To this end, we designed an online experiment where participants used their mouse or trackpad to shoot targets in both visual contexts. Kinematic analysis showed player movements were nearly identical between contexts, with highly correlated spatial and temporal metrics. This similarity suggests a shared internal model based on comparing predicted and observed displacement vectors rather than primary sensory feedback. A second experiment, modeled on FPS-style aim-trainer games, found movements exhibited classic invariant features described within the sensorimotor literature. We found the spatial metrics tested were significant predictors of overall task performance. More broadly, these results show that FPS games offer a novel, engaging, and compelling environment to study sensorimotor skill, providing the same precise kinematic metrics as traditional planar reaching tasks.

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Purpose
In June 2016, the first cases of Zika were reported in the USA in the Wynwood neighborhood of Miami, Florida. The purpose of this paper is to present the results of a survey of Wynwood businesses about their perceptions of their financial well-being and the government and media's responses to the Zika outbreak.


Design/methodology/approach
A survey instrument was developed, and 44 owners/managers of Wynwood businesses were interviewed by telephone or in-person during the period when the outbreak was being managed.


Findings
Businesses reported downturns in revenues, profits, and customer traffic following the Zika outbreak. Believing that the downturn would be temporary, few businesses laid off workers or reduced prices. All businesses reported dissatisfaction with the government's response to the outbreak.


Originality/value
This is the first study to document the impact of Zika on businesses located in outbreak areas. The findings highlight the business impact of Zika outbreaks and suggest a need for improved communication and response from state and local governments to business concerns when future outbreaks occur.

To identify and explore cultural dynamics influencing the psychiatric care of immigrant Somalis in the USA, we reviewed demographic data from Minnesota Departments of Human Services, and interviewed health professionals, exploring community perceptions of medical/psychiatric needs, cultural characteristics, barriers to care, and potential solutions. An informal survey of 37 members of the Mayo Clinic Department of Psychiatry and Psychology, to determine caregiver perceptions of care of Somali patients, cited language barriers (74%), and cultural misperceptions (68%) as the most frequent obstacles. Difficulties working within the patriarchal family structure, limited community resources, poor compliance, and financial issues ranged between 18 and 8%. Additional barriers mentioned were problems working with interpreters from `warring clan factions,' patients' fears of being labeled `crazy,' difficulties viewing illness within an emotional framework, and the need to address mental health from a physical framework through a focus on somatic symptoms. Somalis rarely acknowledge psychiatric problems and common traditional treatments have become ineffective in the new context. Recommendations include alternative health care approaches utilizing family values, `bargaining,' and educational approaches to acculturation.