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Does anyone have access to Laboratory courses in chemistry curriculum in United State colleges/Universities. I needed some reference?
In my recent communication to journal of chemical education from ACS the reviewer has raised a concern of student audience for one of my articles describing a laboratory exercise. please provide some details about the laboratory course structure in chemistry curriculum of United states.Following
Is dielectric property measurements possible in case of Heusler alloys?
I have synthesized the heusler alloy. Now, I am interested in its dielectric properties.
Perhaps dielectric resonance properties can be measured by microwave cavity technique.Following
What are Best ways to writing introduction of scientific paper academic writing for non-native speakers?
I need step by step to writing introductionFollowing
Why is the colour of CdSe thin film is white in color?
I have coated it at 300 and 350C and used Cadmium chloride and selenium dioxide as a source material. Normally the colour of the CdSe thin film will be red or reddish brown in colour. but what i got is white in colour i dont know why.
Hello sir thanks for your immediate clarification. I have coated it on glass substrate by spray pyrolysis method and regarding roughness i didnt measured it yet. when i increase the concentration of the source material then iam getting milky white other wise its shinny white colour sometimes its look colourless.Following
Does anybody know how to remove lipid molecules from the chloroform solution containinig lipid-encapsulated nanoparticles(~15nm) and free lipids?
I've tried to use a centrifuge to separate lipid-encapsulated nanoparticles(~15nm) from excess lipids by aspirating supernatant after the centrifugation at 3000 x g for 30min.
But since both of lipid-encapsulated nanoparticles and lipids are well-soluble in chloroform, it's not easy to remove free lipid molecules properly.
Is there anybody who can give me some advice about the centrifugation or other methods to remove free lipids???
I want to get lipid-encapsulated nanoparticles only............
Thank you. Dr. Abdur Mirajkar.
But I think using non-polar solvents as you said would not be useful to separate lipids from the nanoparticles.
Because the nanoparticles are covered(encapsulated) with lipid molecules so that they tend to be like a lipid molecule and dissolved in iso-octane(polar index: 0.1) as well.
Any comments on that?
How do you motivate a negative-minded person?
We tend to bump with people who give up quickly or do things half way, regardless of age. It can be tiring to push them to move further. Right now, I am facing one. After spending money, time, effort and thinking, on a work related matter, that person is thinking of walking away. If you were in my shoes, what would you do?
Cultures place a high value on revenge and offer more social support to avengersFollowing
How to analyse people at a work environment with games?
Question: What object would you like to be? Why?
Answer: Computer, because I can get knowledge, share my opinions and write about whatever I want (my view of things), or theories.
So, with this answer, I can predict that this person is the computer, and by asking this simple question, I can learn how he/she is, this person doesn't know that he/she is talking talking about him/her self, but that is how analyse people at the work environment.
How to create this "games" and how you analyse them?
I strongly recommend to see Thiagi' site full of ideas on how to use games.
Let me know your views. I'm sure you'll find material and plenty of ideas.
Will hydrogel can be prepared with out cross linking agent?
i want to prepare hydogel with out cross linking agent is it possible to prepare in that way?
It is possible to using without cross linking agent, but the blend is not stable in the gel formation. You check the your gel compound which group majority functional group, after choose correct cross linking agent. For example more amine having your compound pls choose glutaraldehyde.Following
Can anyone say what is the meaning of "short range couplings" in between image pixels?
Image processing and chaotic expertsFollowing
Does anyone has a link to download Homer trial version ?
I've tryed searching the Internet so far, and i just got Pro version but no the licence, so i cannot use the Tool.
So just please give me....Following
Does anyone know papers about the ecology or behavior of the green iguana (Iguana iguana) ?
I'm studying about the respiratory physiology of this species and I need some articles about the ecology and behavior in order to establish links between the type of respiratory structure, metabolic requirements and ecology or behavior.
Could anyone help me ? I'm would be very grateful.Following
Is there any difference between X-Pert High Score and X-Pert High Score Plus ?
Foe the time am using X-Pert High Score plus in that I could not get proper results and reference. Same results if I do with X-Pert High Score I can get better results with more references. Just I want to know which is better in case both are not same.Following
Which fault diagnosis method(s) is(are) used in commercial systems?
In the paper, the authors said that "Advanced signal analysis techniques seem to be good candidates for improving the diagnostic systems in the wind power generation industry. However, they have been rarely incorporated in commercial systems." (in Page 1748). Then my question is which fault diagnosis method(s) is(are) used in commercial systems?
Thanks very much.Following
Anyone who can share a rapid method of virus purification without involving hi tech equipments like ultra-centrifugation?
I have a virus isolated in cell culture. I am going to extract virus RNA and want to get rid of cellular RNA before sharing sample to NGS facility. Anyone who can respond or guide, please?
Many thanks for your valuable comments. I believe i can do something to get rid of cellular RNAFollowing
Looking for Research Question (miRNA related study for GAS7 and Cancer, Cell culture study)?
I am doing a 2 months summer internship and my mentor told me to identify research question related to miRNA. My lab is famous for GAS7/8, RNAi study and they usually do Neuro-2A cell culture study and retrovirus transfection. I want to study any particular miRNA study that might have impact for GAS7 or Cancer. I am still searching literature. If you can advice me some short project that could finish within 2 months and might be able to generate some impactful data, please let me know. Any particular miRNA expressing up-regulation or down-regulation in Neuro-2A cell line that affect GAS7 or Lung Cancer/MLL?
I am still beginner level in this field.Following
Gibbs adsorption and cross-sectional area?
I am referring to the paper entitled "New Adsorption Model -Theory, Phenomena and New Concept - " which is published in J. Oleo Sci. I have question on the paper on paragraph 3 page 2 stating "The important finding is that the molecular surface area is less than the cross-sectional area of the alkyl chain for C16E8 and C18E8. Such small molecular surface areas strongly suggest that Gibbs adsorption just at air/water interface is anadequate. This is one of contradictions fir the Gibbs adsorption." Actually how you measure the cross-sectional area of the alkyl chain? I really appreciate that you can give some literatures on this. I have tried to find in the web but unsuccessfully not found it.
Why, when the molecular surface area is less than the cross-sectional area of alkyl chain is said to be contradict from the Gibbs adsorption area?Following
Whats the concentration of free Tyrosine in live cells ?
Hi would please tell me whats the concentration of Tyrosine in living cells in general and in Cancer cells?Following
Why Religion is a constitutive element of the human being?
It's widely said that the human being is a religious being, using religion to explain at the beginning the world around him, and lately using it to explain it's own existence?
Does anyone have a reference about religión as an evolutionary phenomena? It's for a psychoanalytic article about narcissism as an element in the life of saints, but i need historical and if possible reference about prehistory.
In my introductory lectures on Law and Religion, I tend to conflate the two separate meanings into a generic transcendental-thing-that-is-force-for-social-unity. But after this extremely useful and interesting discussion I will be more nuanced in my approach to religare//relegere.Following
Can I get some information about Kapok Fiber structure?
I want to know more what causes the fibers are water repellent?
Nurfitri, This property is available for raw cotton only. Once you treat with NaOH at boil (used for most of the applications) will be hydrophilic.Following
Why does mRNA expression remain low while protein expression increases?
In one of my experiments I observed a decrease in mRNA expression of gene but however protein expression of the same gene is relatively higher. How this fact can be explained? Please give me help in understanding the situation of the matter .Thank you in advance to all for help
Thank you very much to all for the kind information. These discussions have thoroughly improved my basics on the regulation of mRNA expression.Following
In organic coating, what are the previous surface treatments that need to be applied on the substrate ?
To improve the adhesion between the organic coatings and the substrate, the substrates need to be treated. Is this common in the industrial applications?,if so what are the techniques used?
Besides 'Cleansing' and Activation of substrate, by concept ----
Andrzej informed of the adhesion coating on inorganic (metal surface). - by chemical glue. to bond the organic (parylene coating) .....Good research.
This interface is the development of a newer world between the two non-gelling matrices.
the modus operandi is the use of medium / media which are in harmony with the one (say, inorganic (metal surface)), and can be transformed/ (mixed with another which serves for the other side, and transmit harmony).
Abraham said this in plain words :"think about the interface structure you really want to have and try to create it."Following
Can headspace gc-msd be used for two compounds with similar molecular weight?
I need to extract chlorpyrifos (Mw 282.46 g/mol) from oleic acid (Mw 350/5 g/mol). Both are volatile. what setting should i use?
Dear Dr Daniela,
i am doing method development of chlorpyrifos in fatty acids, i have the GC-MSD condition using SIM mode to detect chlorpyrifos, but when i do direct injection of spiked oleic acid with chlorpyrifos, the oleic acid peak interfere with my chlorpyrifos peak. During my method validation , i need to spiking/ recovery of chlorpyrifos from fatty acids and i had tried solvent-solvent extraction but could not remove oleic acid from chlorpyrifos. Now i am contemplating using headspace GC-MSD and wanted to know whether this is feasible.Following
Can we use some other solvent for DPPH assay instead of methanol?
I am working with some oils which are not soluble in methanol, but soluble in IPA, etc. Can anyone help me the complete procedure regarding the use of IPA for DPPh assay to be done in microplate reader? also please help me with the complete protocol to be followed.
Thanks in advance.
if the sample you want to test is nonpolar the resoluts in DPPH will be wrong because DPPH ASAY is for polar moleculesFollowing
Can anybody identify the plant ?
Name of the plant
Possibly Chenopodium album. Lambsquarters could grow just about anywhere. Where is this plant being photographed at?Following
Does etiolated plant containt different nutrition with the normal one?
I grow rice plants in laboratory condition with "cool white" bulb as light source. It shows etiolation symptom in almost all plants, the stems become longer than the normal one. Does the etiolated plant have different content (nutrition concentration) with the normal one, espesially on the stem part?Following
Can anybody let me know if there is any published data for the estimation of leaf protein( lowrey) and carbohydrate( anthrone) in rice?
Please let me know if there is any data for the total protein content in rice leaf by Lowery's method and total carbohydrate content in rice grain by anthrone method.
Searching Google Scholar for:
NDVI Nitrogen rice
Turns up a large number of results. NDVI is the ratio of the refection of two wavelengths of red and infrared light off the leaves of rice. Some of those papers and their Bibliographies will lead on a long journey of remote sensing Nitrogen and other properties in rice and other crops.
I believe most of the Nitrogen will be in proteins in the rice.
Can consciousness be defined?
Dan Dennett tries to shake our confidence that we ever can know what consciousness is. Would you agree with him?
''A blind locked-in patient, utterly unable to move in space, is conscious.'' Yes?
''Your car which is "about moving in space" is not conscious. '' Yes?
''A living body with arms and legs moving while deeply asleep is not conscious.'' Yes?
I do not see any of these as arguments about what I was saying. I objected the idea that the brain need to construct the outside wold inside. It is not the way the body proceeds.Following
Why we use dominant mode (TE10) in microwave test bench?
in labrotary we use dominat mode for measuiring unknown impedence, reflection coeffecient ,VSWR .i want to know that why we prefer dominant mode operation
The frequency of 10GHz (and around) generation part is simple in a sense canbe handled at laboratory level easily as well as economical.
The dominant frequency related various parts used in Microwave bench (Wave guide and other) are economic to manufacture and convenient to handle Neither too big nor too small) and store.
Looking to above aspects it is desirable (not necessary) to have the sameFollowing
What percent of template can be synthesized during PCR?
For example, the parameters for PCR are denaturing at 95, annealing at 58 and elongation at 72, while the melting temperatures of primers are around 60.
Yes. You are right. It was my mistake. It should nave been the efficiency instead of accuracy. Thanks for correcting me.Following