What is a selectivity index?

What is a selectivity index? The selectivity index (SI) is a ratio that measures the window between cytotoxicity and antiviral activity by dividing the given AVA value into the TOX value (AVA/TOX). The higher the SI ratio, the theoretically more effective and safe a drug would be during in vivo treatment for a given viral […]

Can azoospermia be treated with medication?

Can azoospermia be treated with medication? In some cases, azoospermia can be treated with medication. For example, retrograde ejaculation can sometimes be treated with medications, which can then enable natural conception. Hormones or hormonal drugs used to treat male fertility may include Clomid, Letrozole, FSH injections, or hCG injections. Does azoospermia cause infertility? Azoospermia is […]

How does tourism affect the pyramids?

How does tourism affect the pyramids? Many different factors affect how the pyramids are damaged. They get damaged by traveling wind, sand, natural erosion, and extreme temperature changes which cause the stone to expand and contract, making the pyramids less stable as the years go by. Tourists are also a main cause of this damage. […]

Is CEFR B2 fluent?

Is CEFR B2 fluent? Level B2: Basic Fluency Reaching B2 is generally considered by most people as having basic fluency. You’ll have a working vocabulary of around 4000 words. What does B2 mean in language learning?  Level B2 refers to a candidate who is able to clearly and spontaneously communicate in a more detailed […]

Who makes best bar clamp?

Who makes best bar clamp? The 10 Best Bar Clamps – Reviews 2021 TEKTON 39185 Ratchet Bar Clamp – Best Overall. IRWIN 1964758 QUICK-GRIP Clamps – Best Value. Jorgensen 123ABC Jaw Bar Clamp – Premium Choice. Bessey GSCC2. Yost 15036 Bar Clamp. WEN Quick-Adjust Steel Bar Clamps. POWERTEC Quick Release Bar Clamp. DEWALT DWHT83195 Bar […]

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