Should I exclude a paper classified as low quality by the Newcastle-Ottawa tool from a systematic review without meta-analysis?

Hello! I'm working on a systematic review (without meta-analysis) and when evaluating the quality of the papers only one presented low quality. I did not find guidelines in the instrument itself...

04 November 2020 6,564 7 View

What can I do with Bioanalyser Ladder Problems?

I'm using the Bioanalyzer DNA 1000 to check my amplicons 16S. But when I run the chip, I can't see the pb scale. Just appeared in x axial the time (s). In the last run the message "not all...

29 September 2020 8,021 4 View

What is any peak other than 11 on the xrd in synthesis graphene oxide?

i use 3 gr graphite H2SO4 120ml H3PO4 13,3 (9:1) and i varying KMnO4 10gr 15gr and 20gr with time process 8 hour (4 hour stirrer graphite H2so4 and H3PO4 temp 97 degg ) and 1 hour adding slowly...

20 August 2020 260 4 View

Varying kmn04 and hummer synthesis time methods for graphene oxide, affected or not?

i use 3 gr graphite H2SO4 120ml H3PO4 13,3 (9:1) and i varying KMnO4 10gr 15gr and 20gr with time process 3 hour (2 hour stirrer graphite H2so4 and H3PO4 temp 97 degg ) and 30 minutes adding...

17 August 2020 4,928 14 View

How do I add the full text of past publications? Do I have to scan them myself and load?

I received a notice that 13 of my papers are not available on line.

09 April 2020 9,419 3 View

Can anyone help me about errors of Process Macro multiple mediator analysis with model 4?

When I start PROCESS I get two error messages: ->Error 12410 Source operand for EVAL is not balanced. > >Undefined error #12354 - not found in file .. How can I solve this...

26 March 2020 6,738 2 View

How to input multiple conditions in excel IF nested function?

Hi community, I am facing some issues to input the conditions when I use the IF formula. Can anyone please enlighten me on this? So far, I have this formula, =IF(B1

19 January 2020 7,558 2 View

Best companies to measure RAT hormones and HbA1c?

Good afternoon, Currently my team is performing animal studies with majority of the time using rats of different strains. Our latest experiment was a weight loss study with diet-induced obesity...

14 November 2019 7,139 2 View

Has anyone carried out public health expenditure reviews on spending on nutrition in their country ?

If you have carried out national budget analysis for nutrition expenditure I would love to read your research findings

03 October 2019 5,213 2 View

What can I do do solve a memory (RAM) problem to run an alignment on MEGA?

I am trying to do an alignment MEGA7 and it says Error: computer reported lack of enough memory (RAM). Try freeing up memory by closing other programs and starting over. The alignment is with...

03 February 2019 8,369 3 View

Polymer composites suddenly solidifies?

I am making polymer composite by solvent mixing method. When I am trying to add filler solution in polymer solution it quickly get solidified. How to make them then uinform? It doesn't give time...

03 March 2021 7,540 4 View

What solvent can I used for Paal Knorr reaction between 6-amino hexanoic acid and 2.5 hexanedione?

I am try to make the Paal Knorr reaction between 2.5 hexnedione and 6-amino hexanoic acid, my problem is type of solvent to use, because 6-hexaminohexanoic acid is soluble in water but I am not...

02 March 2021 4,443 2 View

How to polymerize TEOS?

I want to polymerize TEOS on a surface. I know that NH4OH is a preferred catalyst and an alcoholic solvent should be used .But I can not find certain amounts of each material to use. Does any one...

02 March 2021 1,404 6 View

How can extract ciprofloxacin hydrochloride disolve in water er to organic solvent such as dichloromethan or any other solvent?

I need a procedure to extract the ciprofloxacin hydrochloride from aqueous solution by using dichloromethane in detail,. I thank you very much.

01 March 2021 4,306 1 View

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

Precipitate after adding laemmli buffer to protein solution containing Potassium Acetate?

Hi, I am running a size exclusion chromatography experiment with a buffer containing Potassium Acetate as a salt. I analyse these fractions through SDS-PAGE. After boiling my SEC fractions in...

01 March 2021 2,622 3 View

How to make fractions of chloroform extract of plant, using seperating funnel?

28 February 2021 8,466 2 View

Why am i not getting solid after reacting APTES with salicylaldehyde?

The reaction of APTES with salicylaldehyde in ethanol leads to the formation of imine compound yellow solid which is mention in literature, but I am not getting yellow solid I don't know why? when...

28 February 2021 2,955 2 View

can I treat waste water containing solvents and alcohol with electrocoagulation?

there are solvents and alcohol in the waste water of a factory that produces disinfectants. Increasing this waste water requires very serious operations. Can I treat this waste water with...

27 February 2021 2,609 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