What could be source of contamination for seeing positive amplification in negative control?

Yesterday, I ran a gradient endpoint PCR with some primers and saw positive amplification for positive and negative for negative amplification. Running the same assay today, show positive...

13 January 2021 5,201 1 View

I have a monoclonal antibodies (purified) of 8mg/ml, Now I want to evaluate ELISA for my serum samples in International ELISA UNITS?

I need to know how to convert micrograms of antibodies into ELISA Units.

21 September 2020 3,286 3 View

Has anybody found better anticancer effect on patient derived primary cancer cells than cell line?

I am testing compounds on the patient's primary cancer cells as well as a cell line. Generally, I see better activity in cell lines compared to primary cells. Surprisingly I am seeing the...

18 March 2020 467 3 View

Is there an alternate for UV Ozone treatment in order to pursue ETL surface modification?

I wish to deposit a perovskite layer over ETL (SnO2) in order to fabricate the n-i-p planar device and could notice the role of UVO treatment prior to deposition. I was wondering if there any...

28 January 2020 3,310 2 View

Is Girvan Newman and Louvain an effective technique to identify rumors in social networks?

Suggest methods to perform clustering and classification in these- 1) Graph structures 2) Twitter networks 3) Rumor Identification 4) Big data networks

03 December 2019 7,452 3 View

What are the factors affecting Wind Energy Production in Denmark?

Hi everyone, I am a Master's student and I am doing my thesis on Wind Energy Production forecast for Denmark and for that I need the data of the Factors affecting the Wind Energy Production in...

06 November 2019 7,535 2 View

What would be the formula for finding the stretch force for expanding an O ring made of elastic ? On what factors the expansion stretch force depends?

I want to expand an O ring made of elastic material and am looking for the mathematical expression (dynamics) on which the stretch force depends. In addition to this, how does it vary in different...

18 March 2019 4,158 3 View

Catalyst and electrode for fuel cell application?

Hello, could anybody help me to get idea about which kind of ionomers, surfactants, additives and solvents except Nafion, iso-propanol, n-propanol, hexanol, methanol, ethanol, water, ePTFE,...

11 November 2018 8,886 7 View

Is there literature on knowledge management in policy innovations?

I am looking for theories/ frameworks on how knowledge is created and managed in a network on the way to an innovation in public services.

22 September 2018 1,624 4 View

How is inter-coder reliability calculated in qualitative research calculated?

If we are doing a Grounded Theory research involving coding of interview transcripts as propounded by Glaser (1978) and Strauss and Corbin (1990), then: 1. Is there a heuristic to decide on the...

23 October 2017 6,494 5 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Could you recommend any books about Number Theory?

Beginner level books. High level books. Analytical Number Theory. Algebraic Number Theory. Combinatorical Number Theory. Books about partitions. Books about primes.

03 March 2021 7,174 5 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 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

Timeout error!! Processor in the loop (PIL) using STM32F4 Matlab 2018a?

Dear Researchers I am trying to perform a PIL simulation using STM32F4 Discovery board and comunication serial USB TO TTL. During simulation I receive the following timeout error: An error...

01 March 2021 2,327 1 View