Scale Of Infectious Dose Def: The AMOUNT Of Pathogen (ie NUMBER Of Organisms) Required For Cause Infection

Hey, I’m back with another masterpost. I decided to include some of my tips.

Use the forest app to keep you off your phone, your phone is a distractions you face when studying

Try making a to-do list to plan out how much time you take to do each task so you keep track of time

Set rewards i.e. if I finish this task at 9am instead of 9.30am, I’ll watch my favourite tv show for 1 hour instead of 30mins.

How to be disciplined

I guess this is pretty much like a habit. So try to maybe start small, i.e. study 10 mins each day and gradually increase the time limit if you feel comfortable doing so. The reason I chose 10 mins is because it seems like a very short period of time so it’s easier for you to get to work.

How to manage studies with social media

Always set a time period for your school work. For example, after 30 minutes of browsing through your social media, force yourself to do a piece of school work. That way, you will still get work done instead of browsing through your social media all day long.

If you realise on tumblr, I don’t come up with an original post every day and I tend to reblog my old post or queue others posts so don’t stress too much on coming up with a post. For instagram, you could try to take pictures all during the weekend, so you don’t have to stress taking them after school, etc.  But it is important to always put studies first before your social media.

Consider switching off your phone or even deleting your social media apps or deactivating them during exams period if they are really getting in the way of your studies.

Plan

How to schedule your day when you’re unemployed by @businessinsider

How to stick your plans by @cafeinated

How to make and stick to your study plan by @sherlocks-study

Create long term study plan + how to stick to study routines by @studyforyourself

Start

How to start studying by @studylou

How to start working when you really don’t feel like it? by @studentstoolbox

What to do when you really don’t want to study by @yeon-studies

How to stop scrolling through tumblr for 3 hours when you have work by @effectivestudies

More productive

How to become more productive by @to-work-or-not-to-work

How I increased my productivity by 3 times by @brbimstudying

4 secrets to efficiency

The ivy lee method for peak productivity by @harcules

General

How to study as a busy student by @julstudies

Use studyblr to become productive by @determinationandcaffeine

Take a productive break by @thestudycoffee

5 things everyone should do on sunday night by @staedtlers-and-stabilos

Productivity 101 by @lets-study-together

The no bullshit guide to getting your shit together: for the lazy student by @knoweldge

Habits

8 morning habits for productivity by @eintsein

The 8 habits of highly productive people by @medicinasanguis

Habits of highly effective people by @onlinecounsellingcollege

6 habits for maximum productivity by @livingthatlibrarylifestyle

How to develop self discipline

How to wake up earlier by @gurl

Motivation

Focus and motivation by @katsdesk

Whenever you’re feeling unmotivated and sleepy by @evergreenstudies

How to stay awake while studying without caffeine by @getshitsdone

How to be productive + motivated on weekends by @studywithinspo

Procrastination

Types of procrastination and how to deal with them by @emmastudies

How to stop procrastination

How to stop procrastinating by @cutestudystuff

15 productivity hacks for procrastinators by @engincrd

Unconventional methods to beat procrastination by @hawkestudies

What type of procrastinator are you by @b-uwu-ng

Eliminating procrastination and distraction during a study session by @simply-study

Productive when travelling

productive commutes by @universi-tea

productivity on road trips by @intellectys

Tips

7 productivity tips by @simmonestudies

10 small tips to improve your productivity

The dutch student’s productivity tips by @thedutchstudent

My top 10 tips for productivity by @lovelybluepanda

21 tips to become the most productive person you know by @studying-towards-success

Tips and tricks for busy students by @roeum

Time management

Managing time

How to manage time by @solar-citrus

How i manage my time by @pensandmachines

Time management 

Tips

Time management tips by @365text

Time management tips for busy students

Time management tips

Tips for time management by @holocrams

26 time management hacks I’d wish I’d known at 20 by @geekvitamin

How to make the best use of your time by @tbhstudying

5 ways to manage your time efficiently by @quadrtics

Printables

Daily planner by @arystudies

Weekly planner by @studyblrbunny

Productivity printables by @thearialligraphyproject

Habit tracker by @candydsgn

Schedules by @kouiro

Bullet journal

My 2016 bullet journal setup

Sounds

Study sounds by @studyquill

Other masterposts by me

Printables

College

Apps for students

Note taking

Math

Bullet journal

icon credit to @nerdastically

Difference between Blood Agar and Chocolate Agar

Hi everyone!

I’ll tell you in short about Nutrient agar first

It is a simple basal medium used for growth of common pathogens

It constitutes peptone water, meat extract and agar

Difference between Blood Agar and Chocolate Agar

What is common between Blood agar and Chocolate agar?

Both are enriched media

Used for the growth of Gram positive cocci and fastidious organisms like Neisseria & Haemophilus species

Can be used to indicate hemolysis

What are fastidious organisms?

They require specialized environments due to complex nutritional requirement

What is the difference between Blood agar and Chocolate agar?

The difference lies in how the media are made

How is Blood agar made?

Nutrient agar is sterilized by autoclave, cooled to 50°C and sterile sheep blood (5-10%) is added gradually and poured into plates

How is Chocolate agar made?

Nutrient agar is sterilized by autoclave, cooled to 75-80°C and sterile sheep blood (5-10%) is added gradually and poured into plates

How is the difference in temperature significant?

Certain organisms such as Haemophilus species require V factor for growth (complex nutritional requirement)

Factor V is present in blood but it is present inside the red blood cells (RBC)

These organisms can not utilize V factor which is trapped inside the RBC’s in Blood agar

When Blood agar is heated to 80-90°C for a few minutes (boiled blood agar), the V factor is released from within the erythrocytes and made available to the organism for utilization

Some strains of Neisseriae and Diphtheroids require V factor too

That’s why these media are superior to plain Blood agar for growing organisms requiring V factor

What is V fatcor?

V fatcor is a coenzyme, Nicotinamide Adenine Dinucleotide (NAD) or Nicotinamide Adenine Dinucleotide Phosphate (NADP) which acts as a hydrogen acceptor in the metabolism of cell

So to conclude, Chocolate agar is a type of blood agar in which the blood cells have been lysed by heating for growing fastidious organisms :)

Did you know?

Modified Thayer Martin is a type of chocolate agar which contains antibiotics (Vancomycin, Nystatin & Colistin) to suppress growth of other bacteria and promote growth of  N gonorrhoeae

*phew* That’s all for today!

The image is my first photoshop work on the site, hope you like it =D

Just to remind you guys, Chocolate agar contains no chocolate, they simply named it after the yummy color :P

-IkaN

Rx Mnemonics

A nthrax = ACiD

Ci profloxacin

D oxycycline

Tr ichinellosis = TrAM

A lbendazole

M ebendazole

C utaneous Larva Migrans = CIA

I vermectin

A lbendazole

Le ptospirosis = LeAD

A moxicillin

D oxycycline

B rucellosis = BaRDS

Ba ctrim

R ifampicin

D oxycycline

S treptomycin

Ra t Bite Fever = RaPT

P enicillin

T etracycline

Ca t Scratch Disease = CaRAz

R ifampin

Az ithromycin

Ba besiosis = BAAz

A tovaquone

Az ithromycin

Horizontal gene transfer

More mixed mnemonics

Who wants a box of chocolates when you can have a petri dish of bacteria?

Which Microbe Would You Be?

Buzzfeed has a quiz on what bacteria would you be, based on your personality.

I was a Salinicola salarius. (Which isn’t on my Periodic Table of Microbes!)

https://www.buzzfeed.com/grandon/which-bacteria-are-you-based-on-your-personality-3dk99?utm_term=.am4B9qO8B#.ab5oX2B0o

Follow on Twitter @warholScience

Passive Immunotherapy

Active immunotherapies:

Cytokines (TNFa IL-2, IFNs)

Cancer vaccines

tumour CTL and APC

DC priming

Passive immunotherapy:

Administration of monocolnal (clone derived asexually from a single individual or cell) antibodies which target either tumour-specific or over expressed antigens

Generally comprised of antibodies made outside of the body (in a lab)

administered to patients to provide immunity against a disease, or to help fight existing disease

do not stimulate a patient’s body to ‘actively’ respond to a disease the way a vaccine does

immunogen is given several times to induce a strong secondary response

blood serum contains many different antibodies to the immunogen

most immunogens have multiple antigenic epitopes 

each stimulates a different B cell clone/receptor –> polyclonal antibody (PAb) response 

Monoclonal antibody (mAb) therapy is the most widely used form of cancer immunotherapy. Monoclonal antibodies cannot be purified from a polyclonal sample and are derived from a single clone/specific for a single epitope.

Antibodies in cancer therapy:

Trigger immune system to attack cancer cells 

Block molecules that stop the immune system working (checkpoint inhibitors)

 Block signals telling cancer cells to divide 

Carry drugs or radiation to cancer cells

Checkpoint inhibitors

Immune system uses particular molecules to stop it being over activated and damaging healthy cells  - these are known as checkpoints

some cancers make high levels of checkpoint molecules to switch of immune system T cells which would normally attack cancer cells

examples of targets include CTLA-4, PD-1 and PD-L1 (programmed death ligand 1)

Blocking cell division signals 

Cancer cells often express large amounts of growth factor receptors on their surface –> rapid cell division when growth factors stimulate them

some monoclonal antibodies stop growth factor receptors working

either by blocking the signal or the receptor itself 

cancer no longer gets signal to divide

Carrying drugs/radiation

drugs or radioisotopes can be attached to monoclonal antibodies

the mAB binds to the cancer cell, delivering directly

known as conjugated MABs