Does anyone experience E coli lysis while seed culture?

Hi, I am currently working with BL21(DE3)PLySs and PRSET A vector. Out lab frequently transformation and culture E Coli for protein purification. But recently, even though there is colony after...

13 December 2020 9,167 9 View

How is deep learning applied in analysis of open-ended survey questions?

Hello, Can someone give me an idea on how deep learning applied in the analysis of open-ended survey questions? My intuition is that applying deep learning models for analyzing the vast...

07 December 2020 4,479 3 View

Doing a PhD research in Natural Language Processing from a statistics department...?

Hello, My situation is a little strange because I am a Statistics PhD student but I ended up doing research in Natural Language Processing (NLP)/ Deep Learning due to my supervisor's...

26 November 2020 7,293 3 View

Does good inferential comprehension first require solid literal comprehension?

Hello, This can be a silly question to ask, but my main field is not in reading comprehension. While I try my best to phrase my question, it can sound a bit awkward. Thank you for your...

11 November 2020 811 3 View

How are the 3 levels of reading comprehension reflected in grade-level English Language Arts curriculum?

Hello, How are the 3 levels of reading comprehension (literal, inferential, and critical) reflected in grade-level English Language Arts (ELA) curriculum? In particular, normally, is literal...

01 November 2020 1,240 4 View

Is the level of cognitive flexibility positively correlated to the level of reading comprehension?

Hello, Is the level of cognitive flexibility positively correlated to the level of reading comprehension (greater cognitive flexibility brings higher level of reading comprehension)? If there is a...

01 November 2020 8,254 5 View

What could be the problem in these pcr results?

All the pictures I have uploaded are gel image of genotyping. What I don't understand is, most of the time, I get very very faint second band, and I assumed it's probably a problem with primer...

28 October 2020 9,410 9 View

Is the Syntax-first model in sentence processing widely accepted, or is it facing opponents?

Hello, Is the syntax-first model of sentence processing widely accepted, or is it facing more opponents as time goes by? I know that a study in frontal-temporal network of human brain has...

23 October 2020 1,084 9 View

Is there a reading comprehension theory that suggests simple reading questions are best solved via simple text analysis, and vice versa?

My main field is not Linguistics/reading comprehension so what I am asking might sound a bit silly or not make a lot of sense. My question could certainly be better-phrased. Is there a theory in...

23 October 2020 8,310 2 View

PCR recipe with 2 reverse primers?

Should my forward primer volume in the mastermix should be same with other two reverse primers? or do I need to double the volume of forward primer so that the sum of volume of reverse primer 1...

12 October 2020 9,464 8 View

What is the most Operating System (OS) which can be INSTALL on Tiny hard devices like Raspberry Pi (RPi) hardware ?

I'm targeting to deploy a mesh network and manually configure MANET routing protocols. I'm preparing scenarios, architectures, and hard devices needed to do that. Are there some step-by-step...

03 March 2021 1,931 5 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

Does any one know how i can prepare liver tissue with transmission electron microscope with good fixation?

i have problem in preparation of liver tissue with bad cell organelles and how i can adjust osmolarity

03 March 2021 8,890 1 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View

Why Austenite grains in steel show much more twinning than ferrite grains?

It is oftentimes said to be a distinctive metallographic trait that differentiates a fully austenitic and a fully felly ferritic steel without etching that might distinguish between two. Why...

02 March 2021 728 2 View

How to grow E.coli on the low salt LB agar plate with 50 or 100ug/ml of Blasticidin?

Hello, I would like to ask how to grow E.coli which resists 50 or 100ug/ml of Blasticidin. I have tried many methods by using low salt Luria-Bertain(LB) agar plate. However, no colonies grow. Let...

01 March 2021 2,027 2 View

How can I integrate a routing protocol in a tiny device (e.g. Raspberry Pi)?

Hi Community, I'm facing the issue of integration/compiling a new routing protocol in a WSN simulator. The final goal is to successfully add, configure this routing protocol in hardware devices...

01 March 2021 9,332 6 View

Can someone suggest a way to prepare slides to observe under confocal microscope for observing fluorescent tagged proteins??

I am growing the cells on coverslips and transfecting the fluorescent tagged protein directly on them. Then i want to observe these cells under confocal microscope. Currently i am just using...

01 March 2021 6,142 3 View

Gas sensor response and recovery time independant of flow rate and chamber volume?

I am trying to obtain the response and recovery times for my gas sensor device. It appears the the response/recovery times are primarily dependant on the flow rate of the gas I inject into the...

26 February 2021 1,511 3 View

How to replicate the well conditions of a crystal hit with 20%(w/v) isopropanol?

I had a crystal hit in a well with 0.1M HEPEs pH 7.5, 10%(w/v) PEG 4000, and 20%(w/v) isopropanol. Why is isopropanol in w/v here if it's just solvent? How do I recreate this well condition?

25 February 2021 9,761 1 View