6. Personal safety

Bowman, Elizabeth

doi:10.1680/hasfe.26018.0006

Cited by 2 publications

(5 citation statements)

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“…This would be a simple way to demonstrate the feasibility of the interferometric approach to the emerging frontier of 21-cm cosmology. [43].…”

Section: Discussionmentioning

confidence: 99%

“…where B rms is the rms value of the beam response relative to the peak, Ω P corresponds to the FOV and Ω B ∼ θ 2 D is the solid angle of a resolution element. For MWA 32T, the value of B rms is ∼ 1%, and B 2 rms Ω P /Ω B ∼ 10% [43]. This implies the sidelobe confusion will be 10% of the sky variance, so sidelobe rms will be 5% of the sky rms, which is about 10K.…”

Section: Practical Considerationsmentioning

confidence: 97%

“…Therefore, one could hope an instrument with good uv coverage at large angular scales should be able to defeat these instrumental concerns. This is not a merely hypothetical scenario, as the uv plane should be reasonably well filled (about 60%) for a reference configuration of MWA 32T [43], as illustrated in Figure 7. Thus, it seems plausible that MWA 32T itself may have a good chance of detecting this signal, and an instrument with even better UV coverage would be more ideal.…”

Section: Practical Considerationsmentioning

confidence: 99%

“…Since this approach has not yet been tested in practice there could be unknown instrumental issues, such as calibration issues for 32T, a non-flat bandpass (which would require a higher order polynomial), or issues with the beam response pattern [43]. There is certainly room for more study of these issues from an instrumental point-of-view.…”

Section: Practical Considerationsmentioning

confidence: 99%

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Measuring the redshift of reionization with a modest array of low-frequency dipoles

Bittner

Loeb

2011

J. Cosmol. Astropart. Phys.

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The designs of the first generation of cosmological 21-cm observatories are split between single dipole experiments which integrate over a large patch of sky in order to find the global (spectral) signature of reionization, and interferometers with arcminute-scale angular resolution whose goal is to measure the 3D power spectrum of ionized regions during reionization. We examine whether intermediate scale instruments with complete Fourier (uv) coverage are capable of placing new constraints on reionization. We find that even without using a full power spectrum analysis, the global redshift of reionization, zreion, can in principle be measured from the variance in the 21-cm signal among multiple beams as a function of frequency at a roughly 1 degree angular scale. At this scale, the beam-to-beam variance in the differential brightness temperature peaks when the average neutral fraction was ∼ 50%, providing a convenient flag of zreion. We choose a low angular resolution of order 1• to exploit the physical size of the ionized regions and maximize the signal-to-noise ratio. Thermal noise, foregrounds, and instrumental effects should also be manageable at this angular scale, as long as the uv coverage is complete within the compact core required for low-resolution imaging. For example, we find that zreion can potentially be detected to within a redshift uncertainty of ∆zreion < ∼ 1 in > ∼ 500 hours of integration on the existing MWA prototype (with only 32 × 16 dipoles), operating at an angular resolution of ∼ 1• and a spectral resolution of 2.4 MHz.

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“…This would be a simple way to demonstrate the feasibility of the interferometric approach to the emerging frontier of 21-cm cosmology. [43].…”

Section: Discussionmentioning

confidence: 99%

Section: Practical Considerationsmentioning

confidence: 97%

Section: Practical Considerationsmentioning

confidence: 99%

Section: Practical Considerationsmentioning

confidence: 99%

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Measuring the redshift of reionization with a modest array of low-frequency dipoles

Bittner

Loeb

2011

J. Cosmol. Astropart. Phys.

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“…Over the past decade digitization has made significant inroads into the field of health care. 1 While all hospitals in SALUS that perform administrative tasks are equipped with an electronic hospital information system (Krankenhausinformationssystem), it is not uncommon for data to still be recorded in paper form or solitaire tabular files in CSV or excel formats. This concept not only seems outdated in the 21st century, but also has obvious disadvantages in patient care.…”

Section: Background and Significancementioning

confidence: 99%

SALUS—A Study on Self-Tonometry for Glaucoma Patients: Design and Implementation of the Electronic Case File

Geisler,

Oldiges,

Hamiti

et al. 2024

Appl Clin Inform

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Background In times of omnipresent digitization and big data, telemedicine and electronic case files (ECFs) are gaining ground for networking between players in the health care sector. In the context of the SALUS study, this approach is applied in practice in the form of electronic platforms to display and process disease-relevant data of glaucoma patients. Objectives The SALUS ECF is designed and implemented to support data acquisition and presentation, monitoring, and outcome control for patients suffering from glaucoma in a clinical setting. Its main aim is to provide a means for out- and inpatient exchange of information between various stakeholders with an intuitive user interface in ophthalmologic care. Instrument data, anamnestic data, and diagnostic assessments need to be accessible and historic data stored for patient monitoring. Quality control of the data is ensured by a reading center. Methods Based on an intensive requirement analysis, we implemented the ECF as a web-based application in React with a Datomic back-end exposing REST and GraphQL APIs for data access and import. A flexible role management was developed, which addresses the various tasks of multiple stakeholders in the SALUS study. Data security is ensured by a comprehensive encryption concept. We evaluated the usability and efficiency of the ECF by measuring the durations medical doctors need to enter and work with the data. Results The evaluation showed that the ECF is time-saving in comparison to paper-based assessments and offers supportive monitoring and outcome control for numerical and imaging-related data. By allowing patients and physicians to access the digital ECF, data connectivity as well as patient autonomy were enhanced. Conclusion ECFs have a great potential to efficiently support all patients and stakeholders involved in the care of glaucoma patients. They benefit from the efficient management and view of the data tailored to their specific role.

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6. Personal safety

Cited by 2 publications

References 0 publications

Measuring the redshift of reionization with a modest array of low-frequency dipoles

Measuring the redshift of reionization with a modest array of low-frequency dipoles

SALUS—A Study on Self-Tonometry for Glaucoma Patients: Design and Implementation of the Electronic Case File

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