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  • Question asked in Biochemistry
    New Do we have examples of oxidases that donot follow the ping pong mechanism when 2 substrates are present?
    Generally most oxidases follow the ping pong mechanism, when 2 sustrates are present. Is there an exception to this rule. 
    By Esha Sehanobish · University of Central Florida
  • Answer added in Computer Science Education
    92 What happened with “The Fifth Generation Computer Systems project (FGCS)”?
    By Ljubomir Jerinic · Univerzitet u Novom Sadu
  • Answer added in Sport
    8 What is the best filter to process accelerometer data
    By Mansour Attaallah · Alexandria University
    Sean Osis · The University of Calgary
    Mansour, The calculation of peak power during a jump from accelerometer data could be very sensitive to the inertial characteristics of the task. Ma... [more]
  • Answer added in HLA
    2 What is the best way to set up a distributed simulation with third-part simulators?
    By Alisson Brito · Universidade Federal da Paraíba
    Alisson Brito · Universidade Federal da Paraíba
    It is really good! Thanks a lot :) 
  • Answer added in Thin Layer
    6 How to clean dust-like pollutant from thin film?
    By Firman Mangasa · National Chiao Tung University
    Amira A.Moneam · Nile University
    Exactly .. just immerse your film in acetone and IPA then wash it with DI water and dry it with Nitrogen or Just use the spinner and ofcourse all of t... [more]
  • Answer added in Genetic Analysis
    4 difference between HLA Allele frequency and HLA phenotype frequency
    By Stanley Meribe · Kumamoto University
    Stanley Meribe · Kumamoto University
    Ok, I got the drift now. Thanks 
  • Answer added in Cell Culture
    63 What are alternatives to using gelatin as a coating for adherent cells on glass slides?
    By Christopher Sarsons · The University of Calgary
    Nicolas Baeyens · Yale University
    You could also use tissue culture platic slides. Just cut some directly from culture dishes with a Dremel (I am serious...). Also, if you experience s... [more]
  • Question asked in Air Quality
    New What is nano electron beam for determine air contaminants?
    ...? 
    By Kaveh Kheirkhah · Islamic Azad University Tehran Science and Research Branch
  • Answer added in Gravitation
    7 What is the status of Einstein's equivalence principle?
    By Bernard Lavenda · Università degli Studi di Camerino
    James Arnold · Software Productions
    Gravitation is indistinguishable from a force-free state of rest, not inertial acceleration, no matter how local. Falling in a gravitational field, or... [more]
  • Answer added in Cancer Biology
    8 Which specific patient population with prostate cancer should undergo surgery: Are there biomarkers that identify patients who need surgery
    By Fatih Uckun · University of Southern California
    Constantine Kaniklidis · European Association for Cancer Research
    Dear Fatih: Good questions all. I take them up below: Management of Some Adverse Events from Prostate Cancer Androgen Deprivation Therapy (ADT) 1. ... [more]
  • Question asked in Algae
    New How does Chlamydomonas reinhardtii reacts on an oversupply of oxygen?
    I have cultivated Chlamydomonas in the dark on acetat with bubbled air. Could there be an growthinhibition because of an oversupply of oxygen. 
    By Vinzenz Särchen · Fachhochschule Südwestfalen
  • Answer added in Organic Synthesis
    7 What are the methods to deprotect methylene dioxy group
    By Nitin Tandon · Zydus Research Centre
    Saleem Naser · Hikma Pharma
    Try to use acids like sulfuric acid ...hydrochloric acid ....in organic solvent 
  • Answer added in DFT
    1 What about the way to produce scientific results from the work of my group near the Chemistry Dept. in University of Trieste ?
    By Michele Romeo · Università degli Studi di Trieste
    Michele Romeo · Università degli Studi di Trieste
    All the NEXAFS angle-resolved spectra contained in those works were computed by using ADF-External (copyrighted), an angle-dependent dft implementatio... [more]
  • Answer added in Mouse Models
    5 T-47D breast cancer xenograft model in SCID mice?
    By Henry Withers · Roswell Park Cancer Institute
    Ahmed Al-Shammari · Iraqi Centre for Cancer & Medical Genetics Research
    I agree with Licun that increasing cell number can help plus the age of the mice, I faced similar problem with our mammary carcinoma model where we fa... [more]
  • Answer added in Immunology
    3 How to test in vitro whether an extract activates immune cells?
    By Tania Melnyk · National Academy of Sciences of Ukraine
    Massimo Caruso · Università degli Studi di Catania
    I think that you could search a cytosolic production of these cytokines by a pre-treatment of cells with brefeldin A, fix, perm and marking by fluores... [more]
  • Answer added in LC-MS
    31 How to determine the concentration of analytes using the LC-MS/MS when there is serious matrix effect?
    By Minghuo Wu · University of Alberta
    Saleem Naser · Hikma Pharma
    Try to use standard addition method and use LCMsMs system with Q_trap system 
  • Answer added in Food & Nutrition
    2 How do I analyse the influence of taste perception / taste evaluation on the relation between BMI and food intake?
    By Hans Feenstra · Hogeschool The Hague
    Antonio Mattos · Instituto Dante Pazzanese de Cardiologia - Fundação Adib Jatene
    I think better you try to use the improve of BMI by that has low taste perception around the especific follow up.  
  • Question asked in Epigenetics
    New Bed to wig
    Hi everybody, does anyone have any tools that converts bed to wig format??? thanks a ton 
    By Tamer Ali · Justus-Liebig-Universität Gießen
  • Answer added in SYBR green
    23 Anyone seen qPCR curves like this?
    By Jason Metcalf · Vanderbilt University
    Sten Erlandsen · Norwegian University of Science and Technology (NTNU)
    Hi Jason. I agree with comment from Roberto Nussenzveig. But I was wonderng, have you checked youre PCR instrument? Do you have an assay you know wil... [more]
  • Answer added in Cognitive Neuroscience
    1 Can one sensory modality perceive a specific aspect/feature of an object/experience which is normally perceive by another sensory modality?
    By Indika Ferdinando · Monash University
    Aenne Brielmann · Universität Konstanz
    There is definitely quite a large body of evidence showing that humans are able to recognise objects they are only allowed to explore haptically when ... [more]
  • Question asked in Applied Linguistics
    New Who came up with the term "additional language"?
    Although the term has been extensively used in Applied Linguistics, I haven't found any specific references on the origin of this notion. 
    By Laura Fortes · University of São Paulo
  • Answer added in Water Quality
    3 I want to install a water purification plant for drinking water for an Ashram.
    By Karan Gupta · Indian Institute of Technology Bombay
    Muhammad Bilal Asif · University of Engineering and Technology, Taxila
    Dear Friends, the TDS value is not very high. thus no RO requirement. Use roughing filters with in line coagulation system. the tretment plant would... [more]
  • Answer added in Global Health
    1 How about forming a "Public Health Research Community (PHRC)" on researchgate
    By Ravi Upadhyay · All India Institute of Medical Sciences
    Fahmi Khan · Hamad Medical Corporation
    I think researchgate is doing this job. Through this site we can share ideas and know each other. 
  • Answer added in Computational Chemistry
    12 Gaussian program error: "Normal termination" repeated
    By Fabricio Marques · Universidade Federal de Viçosa (UFV)
    Paweł Czachorowski · Nicolaus Copernicus University
    I'm just curious, is "Normal termination of Gaussian" the only part of your output that's doubled? Are there any redundant parts in the results, for ... [more]
  • Answer added in Organic Synthesis
    2 Is it possible to introduce a aldehyde group by Vilsmier reagent on fused nitrogen heterocylcles or benzazepines? Has anybody tried?
    By Vaishali Nadkarni · Wockhardt Limited
    Saleem Naser · Hikma Pharma
    Protect your alcohol by willeamson synthesis to protect hydroxyl group by adding carbon atoms 
  • Answer added in Physical Education
    1 Is there any possibility for physical education study field to be a crossdiscipline or interdiscipline in higher education?
    By Edita Vainiene · Lithuanian Academy of Physical Education
    Alyssa Norris · Washington State University
    Absolutely, and I believe it already is! Cross-cultural studies, sociology, and psychology (to name a few disciplines) have already been widely integ... [more]
  • Question asked in Immunological Methods
    New ELISA Standard Curve Interpretation
    Hello, I wonder if someone can tell me if the standard curve (attached) for a sandwhich ELISA is good to use. It puzzles me because it is the first ti... [more]
    By Carolyn Ashley · University of Saskatchewan
  • Answer added in Medicinal Chemistry
    3 How to seperate compound -peptide from the triethyl amine hydrochloride salt in peptide synthesis?
    By Sandip Dolui · sivananda college of pharmacy
    Zaid Amso · University of Auckland
    Try dissolving it in 0.1% TFA in water more than 3 times and purify using reversed-phase HPLC 
  • Answer added in Real-time PCR
    5 How to deal with conflicting results that occur at normalisation to three different reference genes?
    By Susann Auer · Technische Universität Dresden
    Gerson Kobayashi · University of São Paulo
    No problem! We usually test 5 different reference genes (GAPDH, SDHA, HMBS, HPRT1, TBP), but I guess the more, the merrier. :) But of course the sele... [more]
  • 3 How to use molden interface with Gaussian software09W for getting geometry optimization of two interacting molecules?
    By Thongam Devi · North Eastern Regional Institute of Science and Technology
    Paweł Czachorowski · Nicolaus Copernicus University
    Do you want to optimize a geometry of the system that consists of two distinct parts, just like a dimer of water? If that's the case, there's no probl... [more]