David Cummings
David Cummings
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cell communication 4
part 4 of a 6-part series
Stage 2: signal transduction
zhlédnutí: 133

Video

cell communication 3
zhlédnutí 101Před rokem
part 3 of a 6-part series Stage 1: receptor activation
cell communication 2
zhlédnutí 89Před rokem
part 2 of a 6-part series Five models of cell-to-cell communication
cell communication 1
zhlédnutí 111Před rokem
part 1 of a 6-part series Overview of cell communication Cellular adaptation
cell communication 5
zhlédnutí 85Před rokem
part 5 of a 6-part series Stage 2: Second messengers
cell communication 6
zhlédnutí 77Před rokem
part 6 of a 6-part series Stage 3: cellular response
Photosynthesis 1
zhlédnutí 89Před rokem
Part one in a five-part series on the biochemistry of photosynthesis. Focus is on the big picture: what is photosynthesis?
Photosynthesis 2
zhlédnutí 104Před rokem
Part two in a five-part series on the biochemistry of photosynthesis. Focus is on the spatial locations of key processes in the cell and chloroplast.
Photosynthesis 3
zhlédnutí 73Před rokem
Part three in a five-part series on the biochemistry of photosynthesis. Focus is on non-cyclic (linear) electron flow in the light reactions.
Photosynthesis 4
zhlédnutí 73Před rokem
Part four in a five-part series on the biochemistry of photosynthesis. Focus is on cyclic electron flow in the light reactions.
Photosynthesis 5
zhlédnutí 69Před rokem
Part five in a series on the biochemistry of photosynthesis. Focus is on the Calvin cycle (the dark reactions).
Episode 075: SARS CoV 2 vaccines
zhlédnutí 553Před 3 lety
Learn how the three vaccines against COVID-19 generate immunological memory. As of May 13, 2021.
Episode 074: Vaccines in general
zhlédnutí 266Před 3 lety
Learn how vaccines activate immunological memory.
Episode 073: COVID 19 epidemiology
zhlédnutí 451Před 3 lety
Learn about the spread of COVID-19 as of April 29, 2021.
Episode 072: SARS CoV 2
zhlédnutí 538Před 3 lety
Basic biology of the virus that causes COVID-19 and some of the key clinical features of the infection.
Episode 071: Coronaviruses
zhlédnutí 778Před 3 lety
Episode 071: Coronaviruses
eukaryotic pathogens
zhlédnutí 986Před 3 lety
eukaryotic pathogens
BIO2020 Spring 2021 Lecture Syllabus
zhlédnutí 51Před 3 lety
BIO2020 Spring 2021 Lecture Syllabus
BIO2020 Spring 2021 Lab Syllabus
zhlédnutí 26Před 3 lety
BIO2020 Spring 2021 Lab Syllabus
BIO2020 Spring 2021 Lab Canvas
zhlédnutí 40Před 3 lety
BIO2020 Spring 2021 Lab Canvas
BIO2020 Spring 2021 Canvas
zhlédnutí 50Před 3 lety
BIO2020 Spring 2021 Canvas
interpreting antibiotic disk diffusion results
zhlédnutí 7KPřed 4 lety
interpreting antibiotic disk diffusion results
Microbiology: Antibiotic disk diffusion test
zhlédnutí 13KPřed 4 lety
Microbiology: Antibiotic disk diffusion test
Microbiology: The Etest
zhlédnutí 10KPřed 4 lety
Microbiology: The Etest
Microbiology: The spread plate technique
zhlédnutí 54KPřed 4 lety
Microbiology: The spread plate technique
Microbiology: the streak plate technique
zhlédnutí 11KPřed 4 lety
Microbiology: the streak plate technique
BIO2020 F20 Syllabus
zhlédnutí 46Před 4 lety
BIO2020 F20 Syllabus
BIO2020 Intro to Canvas
zhlédnutí 52Před 4 lety
BIO2020 Intro to Canvas
BIO3015 F20 syllabus
zhlédnutí 44Před 4 lety
BIO3015 F20 syllabus
BIO3015 Lab F20 Intro to Canvas
zhlédnutí 41Před 4 lety
BIO3015 Lab F20 Intro to Canvas

Komentáře

  • @MahdiHemmati-gi9rw
    @MahdiHemmati-gi9rw Před 3 dny

    Can I autoclave it before use to skip the ethanol part?

  • @FelixAgyepong
    @FelixAgyepong Před 14 dny

    awesome i even enjoyed the part where the disc wouldnt come out its good you didnt edit it

  • @khusmarai3984
    @khusmarai3984 Před měsícem

    thanks...for teaching...

  • @MrWhangdoodles
    @MrWhangdoodles Před 3 měsíci

    Excellent video.

  • @blogturmajovem
    @blogturmajovem Před 3 měsíci

    Your explaning is very good, thanks for help!!

  • @blogturmajovem
    @blogturmajovem Před 3 měsíci

    This video help me so much, thank you for the class.

  • @mitchell1212
    @mitchell1212 Před 3 měsíci

    Hi! I have a question about viroids, since it only infects plants and none known in humans, then how will you explain the cause of Hepatitis D?? 1:10

  • @virtuality400
    @virtuality400 Před 4 měsíci

    Really helpful 😊😊❤

  • @jakejosh3322
    @jakejosh3322 Před 5 měsíci

    Hey Sir, thank you for going through this slowly and in great detail I really appreciate it. My lecturers over here in Ireland could learn alot from you!

  • @emikaishikawa1515
    @emikaishikawa1515 Před 5 měsíci

    Thank you. Your video is really informative. But, the thing is that your voice is so low that it is almost inaudible. Anyway, thank you very much.

  • @soniaoghroro
    @soniaoghroro Před 6 měsíci

    ❤️❤️❤️ Thank you So much Easy to understand and concise.

  • @madihasamar
    @madihasamar Před 7 měsíci

    Well the answer to the question is: the E.coli ( or other infectious microorganisms can be analyzed better in open system) because our body acts like an open system where nutrients are provided under aerobic conditions ( moreover E.coli growth rate can be analyzed optimally under aerobic conditions) so the answer would be : open systems

  • @kyraaholiver5473
    @kyraaholiver5473 Před 8 měsíci

    Thank you so much!! Excellent video ❤ Happy new year!

  • @victorajor2511
    @victorajor2511 Před 9 měsíci

    Thanks a lot man. This was very helpful.

  • @abcloft302
    @abcloft302 Před 10 měsíci

    How to get rid of e.faecalis in the prostate???

  • @drane1210
    @drane1210 Před 10 měsíci

    Why are eukaryotes parasites put in vaccines

  • @sashanealand8315
    @sashanealand8315 Před 11 měsíci

    I dont get how you can report the results in ug/ml when it is a dry strip. you have a certain ug of drug on the disk but there is no liquid so how can it be reported in ug/ml?

  • @MrMRbarati
    @MrMRbarati Před 11 měsíci

    Thanks a lot David. I am planning to do this experiment in our lab for the first time. Your demonstration made me feel confident. Cheers

  • @davidbuehler532
    @davidbuehler532 Před 11 měsíci

    That discarded swab tho 😮

  • @aminakaja6465
    @aminakaja6465 Před rokem

    Awesome video, thank you!

  • @TokunboAgboola-xc6rk

    Insightful.

  • @farahhassanalhassany9528

    thank you!

  • @DeFiDebbie
    @DeFiDebbie Před rokem

    Can't find the chart anywhere

  • @jihanebelfarah9646
    @jihanebelfarah9646 Před rokem

    i like this video really

  • @LeslieSoledad-nl7yv

    thank you so much😩💕

  • @theredmonkey236
    @theredmonkey236 Před rokem

    How can I make the “bacteria broth” I have very limited access to supplies or equipment

  • @misstara9838
    @misstara9838 Před rokem

    David, thank you for taking the time to share this research on this platform.

  • @mosesmbale9475
    @mosesmbale9475 Před rokem

    You're amazing

  • @arunkalaivanan8075
    @arunkalaivanan8075 Před rokem

    sir, i have doubt, about why there is moisture alone with the bacterial colony in the end pic?

  • @alan2112drums
    @alan2112drums Před rokem

    That's it?? Why don't you explain, in detail, how science "grows" a virus particle in a cell culture and proves that it actually exists? That's why I clicked on this "cultivating viruses" video.

  • @kayondejohn1598
    @kayondejohn1598 Před rokem

    Great explanation

  • @adefakahajar1891
    @adefakahajar1891 Před rokem

    Hy Sir! How do I know the drugs to be used for the infection through the Sensitivity disc?

  • @atuleshjanbandhu7138

    The dispenser is the paid actor here. Lol

  • @danielwong287
    @danielwong287 Před rokem

    Hi doctor ,I have watched your video .May I ask that what will happen if the streptococcus has reached certain length remains attached .thanks

  • @stanleynnaemeka7488

    Thank you so much... You just saved me some money time and worry.. here I am blessed with a chat and a wonderful lesson..

  • @medicallaboratorytechnolog3513

    How to make sensitivity interpretative chart?

  • @sarekaya4815
    @sarekaya4815 Před rokem

    I tried this method, but the bacteria did not grow as colonies, they grew in the whole plate and I could not count the colonies. What is the reason? thanks

    • @fukyoutubestupidfuckinghandles
      @fukyoutubestupidfuckinghandles Před rokem

      This method covered the whole plate so that's how it grew. This method isn't for counting colonies.

    • @fukyoutubestupidfuckinghandles
      @fukyoutubestupidfuckinghandles Před rokem

      streak plate method might be better but ive just started so there's probably a better method i dont know

    • @ashlykraphy9933
      @ashlykraphy9933 Před rokem

      Sare kaya, You probably need to dilute the sample more so that you get it in countable range which is 20-200 for spread plating technique.

  • @chemistryinfocus
    @chemistryinfocus Před rokem

    I would be glad to use your assistance in interpreting my susceptibility test results

  • @pabasarasamarawickrama8404

    Oo😂❤❤o❤oo❤❤❤o❤o❤ oki iiooi❤❤❤k😊kk

  • @bbfreetube
    @bbfreetube Před rokem

    Excellent explanation. Thanks

  • @prabhatshekhar103
    @prabhatshekhar103 Před 2 lety

    That was helpful

  • @TheebX92
    @TheebX92 Před 2 lety

    Thank you

  • @ashwini5536
    @ashwini5536 Před 2 lety

    Well explained sir✌

  • @lakep7798
    @lakep7798 Před 2 lety

    Excellent, EXCELLENT, clear and succinct explanation. Thanks so much!!

  • @abiolaalice9611
    @abiolaalice9611 Před 2 lety

    Educative and interesting

  • @godfreysoriano4393
    @godfreysoriano4393 Před 2 lety

    THANK YOU!!!! This was so helpful.

  • @alexisc5358
    @alexisc5358 Před 2 lety

    Thanks for the making this better to understand!

  • @alisaleh1987
    @alisaleh1987 Před 2 lety

    thank you s🇮🇶Thank you, sir. I am from Iraq, and this lesson we have is in biology Thank you very much

  • @haroldosoares6531
    @haroldosoares6531 Před 2 lety

    muito bom, perfeito 👍

  • @byronmunashe3827
    @byronmunashe3827 Před 2 lety

    Well explain.👍👍👍👍👍