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  • Question asked in Galaxy Evolution
    New Why is it believed that the universe is expanding when observations to rule out this interpretation were available 17 years ago?
    The observations referred to in this question are with respect to the number density of faint blue galaxies, their angular diameters and characteristi... [more]
  • Answer added in Philosophy
    189 What is consciousness?
    By Adam Balmer ·
    Larry, You did not understand my last posts and it is why you think that I think that science should be compromised on the basis of religious beliefs.... [more]
  • Answer added in Laser
    15 We are currently adding magnetic domain imaging to our MOKE magnetometer and we would like to remove laser speckle. What is the best way to do this?
    By Steven Spurgeon · Drexel University
    Paul Colby · Lockheed Martin
    I can well believe this signal would be tiny. So are you scanning the laser to form this image pixel by pixel? From what little I've read about this i... [more]
  • Answer added in Higher Education Research
    118 How can you actually measure learning gain produced by a particular learning strategy beyond student assessment?
    By Carola Bruna · University of Concepción
  • Question asked in Time Series Analysis
    New DCC in Eviews
    Dear colleagues, I am after implementing Dynamic Conditional Correlation (DCC) model. This model can be easily estimated with Microfit 5; however, I d... [more]
    By Kamrul Hassan · Murdoch University
  • Question asked in Biological Control
    New morphology and biology of Bracon hebetor?
    life cycle of this parasitoid wasp 
    By Elham Hamzepour · Gorgan University of Agricultural Sciences & Natural Resources
  • Answer added in Taxonomy
    4 I would like to find a software that can quantify the colour of the skin of small mammals held in the museum collection.
    By Ignasi Torre · Natural History Museum of Granollers
    Rhainer Guillermo-Ferreira · University of São Paulo
    In Photoshop there is the "Quick selection tool" that allows you to select pixels of the same color. After you select the areas you want to measure, y... [more]
  • Answer added in Lactobacillus
    4 Protocol for RNA isolation from Lactobacillus (rhamnosus)?
    By Sabine Brantl · Friedrich-Schiller-Universität Jena
    Sara Bumgardner · North Carolina State University
    Perhaps the above answers are more helpful for the actual RNA extraction, but what kind of lysozyme are you using? There are various enzymes that act ... [more]
  • Answer added in Base Sequence
    3 What is the meaning of subscript numbers in the upstream of a promoter?
    By Sophia Wang · Xiamen University
    Rodriguez Alonso · Universidad Autónoma del Estado de Morelos
    I agree with Swaminathan, it is most likely to be the conservation of that nucleotide in that particular postition of the alignment. It's a notation I... [more]
  • Answer added in Clinical Dermatology
    1 Why are systemic steroids used in erythrodermic psoriasis, pustular psoriasis and psoriatic arthropathy and not in psoriasis vulgaris?
    By Mohamed Nasr · Al-Azhar University
    Pablo Fernandez Peñas · Westmead Hospital
    Systemic steroids are only used in the acute setting, but should not be used as chronic management due to the rebound after withdrawal and the medium ... [more]
  • Answer added in Theoretical Nuclear Physics
    1 Is there any simple mathematical relation connecting effect of Lambda particle on nuclear potential.
    By K. Santhosh · Kannur University
    Ash Ayesh · California State Polytechnic University, Pomona
    look up peter siegel (csu pomona), a good paper on Lambda hypernuclei 
  • Answer added in Robotics
    1 How to calculate the DH parameter of robotic leg?
    By Vijay Semwal · Indian Institute of Information Technology Allahabad
    Mohd Mohamad · Universiti Teknologi Malaysia
    Check this out :http://www.google.com/url?sa=t&rct=j&q=degree%20of%20freedom%20human%20leg&source=web&cd=2&ved=0CDAQFjAB&url=http%3A%2F%2Fwww.scientif... [more]
  • Answer added in Art and science
    194 I need to know, in your imagination, what is the color of a square?
    By Jolanta Klyszcz · Universidad del Claustro de Sor Juana
    John Allen · Publishing Ethnomycological Journals: Sacred Mushroom Studies
    What Color is a square you ask? Well that depends on how fast it is traveling through space! John W. Allen 
  • Answer added in Material Characterization
    5 Is anyone seen this particle shape before? any suggestion what is could be?
    By Muxina Konarova · University of Queensland 
    Barry Norling · University of Texas Health Science Center at San Antonio
    The "wheel" bears a striking resemblance to some diatoms. Is it possible that there was a source of diatomacious earth contamination in the lab. The... [more]
  • Answer added in Machine Learning
    3 How does a fuzzy logic washing machine differentiate between 1kg of cotton vs. 1kg say jeans in determining the water level?
    By Aida Mustapha · Putra University, Malaysia
    Mohd Mohamad · Universiti Teknologi Malaysia
    Hitachi washing machine sort of testing the load by spinning the drum when the laundry was loaded in the first place. The revolution sensor kind of de... [more]
  • Answer added in Animal Breeding
    10 Are there certain species that exhibit both polyandry and polygyny?
    By Micheas Taguibulos · Ateneo de Manila University
    Ian Colquhoun · The University of Western Ontario
    I agree with you, Jon, that this is a welcome question. Micheas, when I first saw your question, my initial thought was -- Homo sapiens! (chalk that ... [more]
  • Answer added in Ancient DNA
    1 Grabbing human evolution by the teeth. DNA sequencing as a tool to investigate Homo sapiens sapiens migration.
    By Miles Greenford · Hikejoring ltd
    A lot of migration has occurred ,but most of the time people are aware of there roots and if not, today it is a lot easier than earlier times to find ... [more]
  • Answer added in Cancer Cell Line
    11 Breast cancer cell lines?
    By Christos Patsis · McGill University
    Constantine Kaniklidis · European Association for Cancer Research
    MDA-MB-468 is a basal BC cell line while MDA-MB-231 is a claudin-low cell line - a point Hamed Helal made above, to his credit - with claudin-3, clau... [more]
  • Answer added in Embedded Systems
    1 Do you suggest any simulator for power consumption estimation of Wireless Sensor Networks?
    By Alisson Brito · Universidade Federal da Paraíba
    Mohd Mohamad · Universiti Teknologi Malaysia
    So far NS2 is the common simulator for wireless sensor network, however you might have look on on Omnet++ 
  • Question asked in Evolutionary Bioinformatics
    New Is there any work being done on application of nanotechnology in evolutionary genetics
    I have had an interest in utilizing three of the biggest fields that can create something really great: Nanoscience, Life sciences and Information tec... [more]
  • Answer added in Agricultural Entomology
    14 Can anyone provide information about differential varieties for Geminivirus resistance screening?
    By Candra Putra · PT BISI International Tbk
    Alice Inoue-Nagata · EMBRAPA
    I hope I can help with some information regarding begomoviruses in tomatoes. First of all, it is known that there is no resistance gene for tomatoes t... [more]
  • Answer added in Atomic Physics
    4 I want to know how to determine the parity for a given atomic state?
    By Ma Kun · Huang Shan University
    R. Bilodeau · Western Michigan University
    I'd just add that it is rare that one would quote parity as -1 or 1. Generaly we say odd or even, respectively, coming from the fact that the sum of l... [more]
  • Answer added in Child Health
    33 Do you recommend Vitamin D supplementation for all newborns?
    By Mohammad Hourani · American Mission Hospital
    Simon Wheeler · Oxford Brookes University
    Hi Mohammed, Ideally the baby won't need vitamin D supplementation if the mother's vitamin D status is fine. It should have enough stores to see it ... [more]
  • Answer added in Animal Behavior
    4 Does sociability (as a personality trait) require novel/larger brain regions and which? Invertebrates vs vertebrates?
    By Simona Kralj-Fišer · Research Centre of the Slovenian Academy of Sciences and Arts
    J. Patrick Malone · Walden University
    That's a great response, Adrienne. As I look back over my original response, in truth I focused too much on the concept of "personality" at the expens... [more]
  • 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]