deepstash
Beta
Ember P.
@embp20
Placebos in research
Placebos are often used in clinical drug trials to determine how well a potential medicine will work.
- There are two different groups of subjects in a placebo-controlled trial - one receives the experimental drug and the other the placebo. Neither researchers nor subjects know which group is receiving the real drug or the placebo.
- Some researchers are questioning the placebo-controlled trial. Not everyone thinks a drug is ineffective if the placebo performs better.
- Other critics of the placebo-controlled trial state it's wrong to attribute all positive outcomes to the placebo because many illnesses can resolve without any treatment.
- When a patient takes a placebo and experiences adverse side effects, it's called a nocebo effect. Patients taking active drugs have also been known to have side effects that can't be directly attributed to the drug.
91 SAVES
423 READS
IDEA EXTRACTED FROM:
TOPICS IN THIS IDEA
RELATED ARTICLES & IDEAS
Kieron L
@kieronl
Emotions: A Primer
Basic emotions like anger, surprise, disgust, joy, fear and sadness are thought to be universal, and a naturally-occuring reflexive response to a given situation, event or circumstance.
New...
Kinds Of Emotions
- In Psychology, emotions can be either the result of an experience of a situation, or a certain perception of changes that occur within our bodies.
- There are higher emotions like self-awareness, self-consciousness, and an increased sense of empathy or compassion for others.
- Moral emotions include pride, guilt, shame and embarrassment.
Reasons We Experience Emotions
Emotions are a basic response to change, both internal and external, sometimes simultaneously. While our mood lasts for hours or even days, emotions are fleeting, like waves.
Emotions are a spontaneous, motivating agent of change, making us act in our most natural, human way, before the mind comes in the picture, which looks at other signals before reacting.
Evie Gold
@double_golde
Naming Hurricanes
Hurricanes used to be tagged with random numbers, sometimes latitude and longitude numbers, and other times they were named after the place where they came ashore.
Now, the World Meteorolog...
Why hurricanes have names
Names are easier to remember than numbers and technical terms. It is easier for the media to report on, and for people to pay attention to, than if a hurricane was named, for example, Hurrican Two.
- The names come in alphabetical order from a set of six lists.
- The names used in 2020 (Arthur, Bertha, Cristobal, etc.) will come around again in 2026.
- The letters beginning with Q, U, X, Y, Z are omitted.
- If forecasters run out of the alphabet, they turn to the Greek alphabet.
- If a storm was particularly devastating, then those names are retired, such as Hurrican Andrew, Hugo, and Katrina.
Mohamed Byrne
@mbyrne20
Photosynthesis is the key to life
Photosynthesis is a way to store stable energy.
Ancient bacteria used a thermal-sensing pigment called bacteriochlorophyll to detect the infrared signal generated by heat...
Burning Water (Photosystem II)
The process of capturing and storing sunlight meant that ancient bacteria had to burn water. The method of burning is only oxidation - tearing off of electrons from one atom and transferring those electrons to another.
Early photosynthetic bacteria captured the photons and used their energy to strip water of many of its protons and electrons to use for energy production. Later, chlorophyll could split two water molecules at the same time. We call this a Photosystem II chlorophyll-protein cluster.
Green Batteries (Photosystem I)
The Photosystem II (water burning) can't keep going without the second stage Photosystem I. It involves taking the electrons that are stripped from the water molecules in the first step and using them before they decay.
Photosystem I keeps the hard-earned energy by sticking these electrons on a chemical assembly line. It is then used to convert CO2 into sugar that bacteria can use as food.
deepstash
helps you become inspired, wiser and productive, through bite-sized ideas from the best articles, books and videos out there.
Over 2M Installs
4.75 App Score
Deepstash is better on the app. Discover new ideas and get inspired daily.