Wikipedia:Reference desk/Archives/Science/2018 September 23

= September 23 =

5 ARIs and erectile issues.
Why do 5 Alpha Reductase inhibitors cause erectile dysfunction and are they reversible for Finasteride and Dutasteride? — Preceding unsigned comment added by 103.15.60.45 (talk) 06:08, 23 September 2018 (UTC)
 * See 5α-Reductase inhibitor. And if you're concerned, see your doctor. ←Baseball Bugs What's up, Doc? carrots→ 06:22, 23 September 2018 (UTC)
 * I feel the link given gives a very vague answer. I want a more incisive one. — Preceding unsigned comment added by 103.15.60.45 (talk) 06:28, 23 September 2018 (UTC)
 * goes into more detail. --47.146.63.87 (talk) 06:49, 23 September 2018 (UTC)
 * Still not enough to describe the effect on penile muscle contractile issues. — Preceding unsigned comment added by 103.15.60.45 (talk) 07:46, 23 September 2018 (UTC)
 * If you are asking for a concrete case like "when used for few years and five months respectively" it's difficult to answer, unless for a doctor, who meets the patient in person. --Doroletho (talk) 10:55, 23 September 2018 (UTC)
 * Ok... please remove that time period. Can the effects be reversible? — Preceding unsigned comment added by 103.15.60.45 (talk) 11:57, 23 September 2018 (UTC)
 * Sexual dysfunction, including erectile dysfunction, loss of libido, and reduced ejaculate, may occur in 3.4 to 15.8% of men treated with finasteride or dutasteride.[19][26] This is linked to lower quality of life and can cause stress in relationships.[27] There is also an association with lowered sexual desire.[28] It has been reported that in a subset of men, these adverse sexual side effects may persist even after discontinuation of finasteride or dutasteride.[28] --47.146.63.87 (talk) 07:11, 24 September 2018 (UTC)


 * The reference we have leads to a paywalled article, but it's a review article and the reference list is freely accessible.  Elsevier may be conniving, but they're not necessarily very smart. ;)  You can check these references; also read Sci-Hub, it can be entertaining. Wnt (talk) 19:51, 28 September 2018 (UTC)

3d screen, made of See-through displays
If you stack transparent LCDs, do you get a 3d screen? It would be a rather expensive toy for consumers, but could this work? Doroletho (talk) 10:53, 23 September 2018 (UTC)


 * No. --Kharon (talk) 11:29, 23 September 2018 (UTC)
 * Yes it works but Liquid-crystal displays do not emit light so you would have to arrange adequate illumination of the stacked screens, and LCDs have a limited viewing angle so you cannot achieve a full walk-around stereoscopic effect. Unless you really want to use a big stock of LCDs with all their associated connectors, wires, circuit boards and power supplies, first review the alternatives at the end of the article Stereo display. DroneB (talk) 15:51, 23 September 2018 (UTC)


 * Several famous projects using layered displays have come out of the MIT Media Lab and have been presented at SIGGRAPH and elsewhere. For example:
 * Tensor Displays
 * Layered3D
 * Kinetic Blocks and related tangible displays
 * "HR3D" displays using stacked displays
 * ...and so on.
 * The ideas are neat but the execution is usually limited by several factors: brightness, spatial resolution, and temporal resolution (and skew) are recurring problems that limit the practical performance of such devices. But most of these kinds of demo projects haven't gone anywhere because they're just not very useful - and once the innovative novelty wears off, even researchers lose interest.  It's pretty unlikely that hobbyists or companies that target mass-market audiences are going to build anything better - because as soon as you add the extra constraints of cost, reliability, manufacturability, and compatibility, the technology has no clear net advantage over conventional displays.
 * Here's a review article: Three-Dimensional Displays: A Review and Applications Analysis (2011), which was featured in IEEE's Transactions on Broadcasting.
 * Nimur (talk) 17:38, 23 September 2018 (UTC)