5,189 Matching Annotations
  1. Aug 2019
    1. high-fructose corn syrup

      A sweetener made from corn starch. It contains a mixture of glucose and fructose molecules which taste the same and have the same calories, though they are processed differently in the body.

    2. tumorigenesis

      formation of cancerous clusters of cells (tumors), where cell growth is uncontrolled

    3. AMP deaminase (AMPD2)

      define

    4. tandem mass spectrometry (LC-MS/MS)

      Tandem means having two in a row. and mass spectrometry is a method used to analyze samples to look at chemical makeup by looking at charge-to-mass signatures of individual atoms in a sample. Putting two mass spectrometers in a row increases the sensitivity of this method so that ions that are close in mass can be told apart. A great analogy and explanation can be found in this Youtube video.

    5. distal

      adjective; far from the center. The end-most part of the intestines.

    6. radiolabeled

      define

    7. ad libitum

      adverb; as much as desired. The authors put high-fructose corn syrup in water for the mice to drink as much as they wanted.

    8. myriad

      Noun; large and diverse amount of

    9. Define APC

    1. Langley

      Samuel Pierpont Langley (1834-1906) was an American astronomer, physicist and inventor. His research on solar and lunar radiation greatly influenced Arrhenius.

      Arrhenius used data from Langley's 1890 publication "The Temperature of the Moon" as the basis for his model.

    2. Fourier

      Joseph Fourier (1768-1830) was a French scientist and mathematician who studied heat transfer. He theorized that Earth's atmosphere could act as a thermal insulator by absorbing heat (radiation) emitted by Earth's surface.

    3. Professor Högbom

      Arvid Hogbom (1857-1940), a Swedish geologist, was a colleague of Arrhenius, a professor at Stockholm University and a member of the Physical Society.

    4. transparency of the atmosphere

      De Marchi seems to refer to the ability of the atmosphere to let through all wavelengths of radiation. He probably focused on the ability of water vapor in clouds to reflect incoming solar radiation, reducing how much solar energy reaches Earth's surface.

      When Arrhenius discusses transparency in relation to his model, he focuses on the ability of water vapor to absorb infrared radiation and re-emit it back toward Earth's surface.

    5. L. De Marchi

      Luigi De Marchi was an Italian meteorologist. The work quoted here is from his prize-winning essay for a competition on the causes of the Ice Age.

    6. eccentricity

      A measure of the shape of an ellipse, how far it is flattened from a circular shape. An orbit with low eccentricity is almost circular, whereas an orbit with high eccentricity is highly elliptical.

      Items 3, 5 and 9 in De Marchi's list make up the Milankovitch Cycles, which affect how much energy Earth receives from the Sun and how that energy is distributed over the globe.

      For more information, see this resource from Climatica: http://climatica.org.uk/climate-science-information/long-term-climate-change-milankovitch-cycles

    7. The position of the equinoxes.

      Also called "precession", this refers to the orientation of Earth's rotational axis relative to its position in its orbit around the Sun.

      Items 3, 5 and 9 in De Marchi's list make up the Milankovitch Cycles, which affect how much energy Earth receives from the Sun and how that energy is distributed over the globe.

      For more information, see this resource from Climatica: http://climatica.org.uk/climate-science-information/long-term-climate-change-milankovitch-cycles

    8. The obliquity of the earth's axis to the ecliptic.

      The tilt of Earth's rotational axis relative to the plane of its orbit around the Sun.

      Items 3, 5 and 9 in De Marchi's list make up the Milankovitch Cycles, which affect how much energy Earth receives from the Sun and how that energy is distributed over the globe.

      For more information, see this resource from Climatica: http://climatica.org.uk/climate-science-information/long-term-climate-change-milankovitch-cycles

    9. diminution

      lowering

    10. A fortiori

      even more

      This is a Latin phrase which translates as "from the stronger". Here, Arrhenius uses it to indicate that the remainder of the sentence presents an even stronger argument than the previous sentence.

    11. untenable

      unsupportable

    12. viz.

      namely; in other words

  2. Jul 2019
    1. differentially expressed genes (DEGs)

      Differentially expressed genes are ones that have higher expression in one condition versus another.

    2. bulk sequencing

      In this context, bulk sequencing refers to the analysis of whole tissue, as opposed to single cells or nuclei.

    3. protoplasmic astrocytes

      Protoplasmic astrocytes are a subset of astrocytes that are located in the gray matter (which consists mostly of cell bodies) in the brain. They have many complex processes that can contact blood vessels and neurons.

    4. unbiased clustering

      Unbiased clustering is a statistical approach to make sense of large sets of data. It allows scientists to group together ("cluster") genes that are similar to one another.

    5. astrocytes

      Astrocytes, like microglia, are cells that facilitate neuronal functions. They mediate neuronal signaling, support the blood brain barrier, and help respond to sites of trauma.

    6. interneurons

      Interneurons are neurons that act as an intermediate between two other neurons.

    7. upper-layer excitatory neurons

      Upper-layer refers to where in the cortex these neurons are located.

      Excitatory neurons are neurons which increases the activity of the cells it's connected to.

    8. RNA integrity number

      The RNA integrity number, or RIN, is an index of RNA quality. RNA can sometimes be degraded when it is isolated, so this is a useful way to see if the RNA is still reliable.

    9. postmortem interval

      The postmortem interval is the time between when an individual died and when the tissue was prepared.

    10. anterior cingulate cortex

      The anterior cingulate cortex is the part of the brain associated with higher level functions such as emotion, empathy, and decision making.

    11. prefrontal cortex

      The prefrontal cortex is an area at the front of the brain. It is associated with social behavior, decision making, and personality.

    12. cortico-cortical projection neurons

      Cortico-cortical projection neurons are cortical neurons which project (or connect to) other cortical neurons.

    13. microglia

      Microglia are "helper cells" in the brain. They help mediate neuron responses, clear out dead cells, and control immune responses.

    14. synaptic signaling

      Synaptic signaling refers to how neurons communicate with one another.

      A projection called an axon from the pre-synaptic neuron touches or "synapses on" the dendritic projections of the post-synaptic neuron. Chemicals called neurotransmitters are released from the pre-synaptic neuron and mediate responses in the post-synaptic neuron.

    15. transcriptomic

      The transcriptome refers to the total set of RNA transcribed from DNA.

    16. single-nucleus RNA sequencing

      In single-nucleus RNA sequencing, the nucleus (which contains DNA and nascently transcribed RNA) is isolated from a single cell. The isolated RNA undergoes RNA-sequencing, in which the RNA is broken up into fragments. Using a database, these fragments are then aligned to specific transcripts.

    17. neocortex

      The neocortex is the part of the brain that in humans is associated with higher level functions such as cognition and language.

    18. genetic heterogeneity of autism

      Genetic heterogeneity refers to the ability of a phenotype (in this case, autism) to manifest via genetic mutations in multiple different loci. This means that there isn't one single genetic mutation that's associated with autism.

    1. downstream processing

      Refers to the process of separating desired products from biosynthetic pathways

    2. chiral reagents

      Any reagent that exhibits chirality (or asymmetry) in its molecular structure

    3. naphthalenes

      compounds that contain two fused benzene rings; also referred to as polycyclic aromatic hydrocarbon

    4. aryl halides

      organic compounds that contain a halogen connected to a benzene ring

    5. adventitious “active site”

      an active site created by chance rather than by design

    6. Met

      The amnio acid, methionine

    7. proximal

      located at a closer distance

    8. hydrophobic

      repels or has no affinity towards water

    9. functionally conserved

      relatively unchanged when one goes back in genealogical time

    10. thermohalophilic

      An organism that thrives in extreme high temperature and high salt concentrations

    11. enantioinduction

      Enantioinduction is also popularly known as asymmetric induction. This process is the preferential formation of one enantiomer over the other as a result of the influence of a chiral feature present in reactants or the catalyst.

    12. biocompatible

      not harmful to living cells

    13. organosilicon

      Compounds that contain carbon-silicon bonds

    14. enantiopure

      A compound available in one enantiomeric form

    15. chemo- and enantioselectivity

      Chemoselectivity is the preferential reaction of a reagent with a specific functional group over others. Enantioselectivity is the extent to which one enantiomer is formed over the other in a chemical reaction.

    16. catalyze

      speed up a reaction with the use of external agent, typically a chemical compound

  3. Jun 2019
    1. recitation

      A meeting of a subset of students from a larger lecture course in which students can ask questions, get clarification on lecture topics, and may solve additional problems or take quizzes (typically required with very large college courses).

    2. effect size

      Statistical measure of the strength of the relationship between two variables.

    3. gender gap

      Another term for the "gender achievement gap" in which men outperform women in the same field.

    4. lucrative

      High-paying.

    5. conceptual mastery

      Understanding the main ideas that make up the field.

    6. interactive techniques

      Activities in which the student participates (as opposed to passively listening to a lecture).

    7. curricular materials

      Educational resources that can be incorporated into a teacher's lessons.

    8. context-rich problems

      Short scenarios that give the student a real-world situation in which to apply their knowledge.

    9. fear of being devalued based on a group identity

      Stereotype threat or identity threat.

    10. evaluative stress

      Fear and anxiety caused by the thought of having to take an exam.

    11. pedagogical

      Related to teaching.

    12. control group

      The subjects that do not receive treatment.

    13. self-relevant

      Related to an individual's sense of identity.

    14. cumulative exam

      Test on all material covered during the course.

    15. distribution

      The frequency of occurrence of some measure (for example: how many students got As, Bs, Cs, Ds, and Fs).

    16. SOM

      Supporting Online Materials (typically located at the end of the article).

    17. significant

      The result deviates from that expected to arise by chance (from random variation or errors in sampling).

    18. psychological intervention

      Any activity used to modify behavior, emotional state, or feelings.

    19. gender achievement gap

      The difference in test scores, course performance, and job prospects between people of different genders.

    20. instructional methods

      How course material is taught, such as through context-rich problems or curricular materials.

    21. cognitive

      Perception, attention, learning, memory, and problem solving.

    22. theoretically motivated

      Based on a hypothesis that may have been supported in laboratory experiments, but has not yet been shown to work in practice.

    23. replicated

      Repeating a scientific experiment and finding the same results.

    24. resulting in a significant gender × condition interaction

      Interaction effects occur when the effect of one variable depends on another variable.

      In this case, the effect of the intervention (values affirmation or control) depended on the student gender (male or female).

    25. discipline

      A specific branch of knowledge, such as physics or biology.

    26. z scores

      A z-score is a measure of the number of standard deviations above or below the average score a raw, individual score is. The higher the z-score, the more different a data point is from the average.

    27. continuous

      Continuous variables have an infinite number of possible values. This is in contrast to categorical variables, which have a discrete number of defined values (for example, in this study "man" or "woman" for gender).

    28. SD

      Standard deviation, a measure of the amount of variation in data.

      It can be used to quantify how far an individual's data is from the average of a data set.

    29. negative relation

      A condition in which when the value of one variable goes up (endorsement of the gender stereotype), the value of the other variable goes down (exam scores).

    30. as a function of

      A function defines one variable in terms of another. Here, the more strongly a woman in the control group endorsed the gender stereotype, the lower her exam scores were.

      Defining y "as a function of" x means that y varies based on the level of x.

    31. χ2

      Chi-squared, a test which tells whether there is a statistically significant difference between the distribution of two categorical variables (for example, gender).

    32. SE

      Refers to standard error, which is a measure of how far away the mean of your data is likely to be from the true mean of the population.

    33. P

      The P value is a measure of how likely it is that your null hypothesis (that values affirmation has no effect) is true.

    34. outcome measure

      Tools used to assess a subject's performance.

    35. condition

      Assigned group, either the intervention group or the control group. In this case, the control group contained students who did not participate in the values affirmation intervention.

    36. social-psychological

      Effects that result from interactions within groups, and between both groups and individuals.

    37. randomized

      Participants are randomly assigned to different test conditions.

      In this case, participants are equally likely to end up in the control group and the values affirmation test group.

    1. interaction release

      In response to lack of food and increased populations, animals broaden the scope of species they interact with beyond their original interactions.

    2. frugivores

      An animal that eats primarily fruit

    3. interaction dissimilarity

      When the behavior between species in one area differs from the behaviors between species in another location.

    4. novel interactions

      A new relationship or pattern of behavior between plants and animals.

    5. binary

      Binary calculations are a straightforward form of measurement that states the presence or absence of an interaction.

    6. biotic factors

      Living parts of an ecosystem, in this case, invasive species on the island

    1. chlorisondamine

      A drug that blocks the binding of acetylcholine to its nicotinic receptors.

    2. neurogenesis

      Formation of new neurons.

    3. autoreceptors

      Referring to a case where the neurotransmitter and the receptors are present on the same cell. The released neurotransmitter binds to the receptor on the same cell.

    4. morphometric analysis

      A quantitative measurement of a neuron size, shape, or density.

    5. petrosal and nodose neurons

      Brain cells in a group of nerves found at the base of the skull. The nodose and petrosal neurons are part of the vagus and glossopharyngeal nerves, respectively.

    6. unmanipulated

      No change; unaltered.

    7. nicotinic receptors

      These are receptors that respond to the neurotransmitter, acetylcholine.

    8. methylates

      Introduces a methyl (CH<sub>3</sub>) group. Here, PNMT adds a CH<sub>3</sub> group onto norepinephrine creating epinephrine (also known as adrenaline).

    9. pituitary-adrenal axis

      Refers to the connections and interactions between the pituitary gland and adrenal glands. 

    10. caudal thoracic

      Situated in the tail part of the body.

    11. progenitors

      Precursors.

    12. tetrodotoxin

      Sodium channel blocker. It blocks the influx of sodium into the cell.

    13. influx

      Act of flowing in.

      Example: An influx of tourists was observed over the holidays.

    14. catecholaminergic

      Refers to the cell group that releases one of the neurotransmitters, dopamine or norepinephrine.

    15. tyrosine hydroxylase

      An enzyme responsible for the conversion of tyrosine (an amino acid) to dopamine, a neurotransmitter.

    16. quantitative

      Refers to the measurement of quantities, a countable amount of something. For example: A baby weighs 7 pounds and 4 ounces.

    17. qualitative

      Refers to the measurement of qualities, a describable trait of something. For example: The girl has brown eyes.

    18. phenotype

      Here, referring to the physical characteristics of the neurons.

    19. peptide putative transmitters

      Widely accepted class of neurotransmitters.

      Read more about the different neurotransmitters here.

    20. Neurotransmitters

      A chemical that is released by brain cells called neurons. These chemicals aid in communication or passing messages between neurons.

    21. veratridine

      Drug that increases the influx of sodium into the cell.

    22. mutability

      The ability to change.

      For example, think of a caterpillar, which has the ability to change to butterfly.

    23. thermoregulation

      Maintaining the body’s temperature within the normal limits.

    24. basal

      Normal or minimum level.

    1. translational

      Research that can be useful to prevent or treat disease

    2. developmental

      Relating to the growth of the individual.

    3. subsequent

      Following.

    4. cocaine-induced

      The response prompted by cocaine.

    5. nicotine-induced

      Response prompted by nicotine.

    6. risk

      Prone to; susceptible.

    7. pretreatment

      Treatment received prior to something in advance

    8. assessed

      Evaluate; measure.

    9. administered

      Given.

    10. prompted

      Pushed; urged; required.

    11. diminished

      Reduced.

    12. endpoints

      Outcome

    13. long-term synaptic potentiation

      Strengthening of synapses between neurons

    14. prenatal

      before birth; during pregnancy

    15. phenocopied

      mimicked; acted similarly

    16. transient

      only for a short time

    17. baseline

      normal

    18. facilitation

      help; make the process easy

    19. variant

      modified

    20. ERK/MAPK

      signaling pathways that help in gene regulation

    21. phosphorylates

      adding phosphate residues

    22. concurrent

      happening at the same time

    23. Hypoacetylated

      not enough acetylation

    24. deacetylase

      removal of acetyl groups

    25. hyperacetylation

      increase or excessive acetylation

    26. promoter

      DNA sequences that define where the transcription should start in a gene

    27. disinhibits

      restrain

    28. simulate

      prompt or trigger

    29. psychostimulants

      drugs that cause an increased behavioral or motor response

    30. robust

      widely used

    31. behavioral paradigm

      a model designed to perform behavioral experiments

    32. acetylation

      Process by which acetyl groups are added to preferred residues in a protein.

      For instance, acetyl groups are added to lysine residues in a protein structure

    33. histone

      components of chromatin that helps in gene regulation

    34. chromatin

      DNA + histone

    35. FosB

      it is one of the transcription factors that help in gene expression

    36. transcription

      the process by which a copy of genetic information is made from DNA to RNA

    37. synaptic

      A synapse is a space between the neurons that allows passage of electric or chemical signals between the neurons.

      Anything that occurs between synapses is referred to as synaptic

    38. plasticity

      the ability of the neurons (brain cells) to change and learn new things by changing their synaptic strength

    39. spiny neurons

      Medium sized neurons that have dendritic branches

    40. inhibitory

      slowing down, hold back, restrain, negatively affecting a response

    41. GABAergic

      neurons that contain inhibitory neurotransmitter, GABA

    42. prefrontal cortex

      Part of the frontal cortex in the brain. Its function includes planning, organization, and decision making

    43. amygdala

      A brain region present in the temporal lobe. It is almond In shape. It plays an important role in emotions.

      Eg. When we see a lion, we immediately run due to fear. The fear response is due to the amygdala.

    44. ventral tegmental area

      A brain region in the midbrain. Serves as a center for the origin of dopaminergic neurons

    45. glutamatergic

      neurons that can modulate (or alter or modify) the neurotransmitter, glutamate. Glutamate is an excitatory neurotransmitter

    46. dopaminergic

      neurons that contain neurotransmitter, dopamine. Dopamine plays a vital role in the reward pathway

    47. integration

      to combine the similarities together

    48. convergence

      bringing together two different concepts that share similarities

    49. reward

      recognition of one’s work or effort

    50. ventral striatum

      contains the brain region, nucleus accumbens

    51. nucleus accumbens

      A brain region in the forebrain. It has two parts: core and shell

    52. addictive

      causing someone to become dependent

    53. cocaine

      Recreational drug. Referred as coke.

    54. nicotine

      primary chemical present in tobacco

    55. addiction

      dependency, craving

    56. modulated

      modify

    57. enhanced

      increased

    58. place preference

      preferred choice of one place over another

    59. conditioned

      trained or habituated

    60. sensitization

      Repeated administration of a stimulus can cause a response to the stimulus.

      Eg. If you give your cat piping hot milk the first day, the cat may not drink it as it will burn its mouth. However, if you continue to give your cat hot milk for several days in a row, the cat will eventually start drinking the milk as it is habituated to the new stimulus (hot milk) and will not complain

    61. Locomotor

      the movement of a living being from one place to another

    62. sequential

      one by one; logical order

    63. determinant

      a key factor

    64. irrelevant

      not important

    65. molecular genetic

      study of the structure and function of genes involved in the behavior

    66. electrophysiological

      observing the electrical properties of neurons in the mouse brain

    67. behavioral

      observing the behavior of the mouse

    68. exert

      influence

    69. gateway drugs

      the substances are mild and not addictive on consumption. However, the continuous consumption of these mild substances can lead to the use of other addictive drugs. They are also known as ‘habit-forming drug.’

      Eg. Alcohol, Cigarettes.

    70. epidemiological

      Deals with incidence and distribution of diseases and societal issues

    71. illicit drug

      Substances that are addictive to the central nervous system.

      These substances are illegal to be possessed, have no documented therapeutic effect, and are referred to as drugs of abuse.

      Eg. Cocaine, Heroin

    72. marijuana

      ‘weed’ or ‘pot.’

      Read more about marijuana here: https://www.drugabuse.gov/publications/research-reports/marijuana/what-marijuana