Month

April 2020
27
Apr

How will Starlink satellites work ?

April 27, 2020
Starlink satellites are relatively small compared to others in orbit. The unit is about the size of an office desk, weighing +- 260kg). Each satellite features a single solar array and 4 powerful phased array antennas. For propulsion purposes the satellites are equipped with ion thrusters, powered by krypton that enables the satellites to orbit,...
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27
Apr

Heavy screen users are the heaviest among 10,000 children

April 27, 2020
Engberg, E., Figueiredo, R.A.O., Rounge, T.B. et al. Heavy screen users are the heaviest among 10,000 children. Sci Rep9, 11158 (2019). https://doi.org/10.1038/s41598-019-46971-6 Abstract This cross-sectional study examined the associations of recreational screen time (viewing TV programs on any screen-based device and computer use, performed while sitting) with body mass index (BMI) categories and waist-to-height ratio (WHtR) tertiles in 10,228...
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27
Apr

When will Starlink satellites be operative?

April 27, 2020
April 23rd, 2020 – Starlink Launch 9 should be just around the corner. Launch 7 has just been completed and Launch 8 is targeted for May. Musk has said that Starlink can provide “minor” internet coverage with at least 400 satellites and “moderate” service with about 800, so the constellation will likely be operational relatively...
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27
Apr

SpaceX requests lower orbits for satellites

April 27, 2020
SpaceX seeks to modify Starlink regulatory license SpaceX recently submitted an application to the Federal Communication Commission proposing to operate more satellites in lower orbits than the FCC previously authorized. The first phase of the Starlink network will include 1,584 satellites orbiting 341 miles (550 kilometers) above Earth. That part of the constellation, which SpaceX...
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27
Apr

Evening Chronotype, Disordered Eating Behavior, and Poor Dietary Habits in Bipolar Disorder

April 27, 2020
PMID: 32335894DOI: 10.1111/acps.13179 Abstract Objective: Our aim was to evaluate the relationship between evening chronotype, a proxy marker of circadian system dysfunction, and disordered eating behavior and poor dietary habits in individuals with bipolar disorder (BD). Methods: In this cross-sectional study, we evaluated 783 adults with BD. Chronotype was determined using Item 5 from the reduced Morningness-Eveningness Questionnaire. The...
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27
Apr

Victor Leach of ORSAA: Critical review of the FDA 2020 Report

April 27, 2020
Source: https://betweenrockandhardplace.wordpress.com/2020/04/27/victor-leach-of-orsaa-critical-review-of-the-fda-2020-report/ Below is the next in a series of Guest Blogs on BRHP. The opinions expressed in this Guest Blog are of Victor Leach himself. Publication of these opinions in BRHP does not imply that BRHP automatically agrees with or endorses these opinions. Publication of this, and other guest blogs, facilitates an open debate and free exchange...
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26
Apr

The circadian clock and darkness control natural competence in cyanobacteria

April 26, 2020
Taton, A., Erikson, C., Yang, Y. et al. The circadian clock and darkness control natural competence in cyanobacteria. Nat Commun 11, 1688 (2020). https://doi.org/10.1038/s41467-020-15384-9 Abstract The cyanobacterium Synechococcus elongatus is a model organism for the study of circadian rhythms. It is naturally competent for transformation—that is, it takes up DNA from the environment, but the underlying mechanisms are unclear. Here,...
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26
Apr

A laboratory study on the effects of wind turbine noise on sleep: results of the polysomnographic WiTNES study

April 26, 2020
Sleep, zsaa046, https://doi.org/10.1093/sleep/zsaa046 Published: 25 March 2020 Abstract Study Objectives Assess the physiologic and self-reported effects of wind turbine noise (WTN) on sleep. Methods Laboratory sleep study (n = 50 participants: n = 24 living close to wind turbines and n = 26 as a reference group) using polysomnography, electrocardiography, salivary cortisol, and questionnaire endpoints. Three consecutive nights (23:00–07:00): one habituation followed...
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24
Apr

Damage to Telecommunications Infrastructure

April 24, 2020
This post will be updated periodically. We most strongly condemn the damaging of telecommunications infrastructure. There is absolutely no excuse for this kind of criminal behavior, for whatever reason. Emergency Services If towers are damaged emergency communications can be disrupted, endangering the lives of those needing critical care. It makes the work of the emergency...
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23
Apr

Comparative Analysis of EMF Monitoring Campaigns in the Campus Area of the University of Novi Sad

April 23, 2020
Kljajic, D., Djuric, N. Comparative analysis of EMF monitoring campaigns in the campus area of the University of Novi Sad. Environ Sci Pollut Res (2020). https://doi.org/10.1007/s11356-020-08008-8 Abstract Following an increasing number of artificial electromagnetic field (EMF) sources in human surrounding, a number of research studies have been devoted to the issue of environmental EMF pollution. A particular...
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