Questions in Topics
Ask, share and discuss - with a global network of researchers.

Topics makes it easy to ask questions, get answers and share interesting content with other researchers. Browse topics by discipline to find out what's happening in your field.

Browse Topics

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
  • 1 A 52 years old man presented with dysuria, frequency and mild difficulty specially in the last few drops of urine for more than 6 months,
    By Ahmed Saad Zaghloul · Ahmed Maher Teaching Hospital Cairo-Egypt
    Claus Brunken · Asklepios Klinik St. Georg
    The UTI should be treated, the stones should be removed. It is possible to remove the the residual adenomous tissue in the same session. 
  • Answer added in Algae
    5 How quickly can marine algae (or algae in general) synthesise chlorophyll-a in response to reduced light conditions?
    By Daniel Pratt · The University of Waikato
    John Marra · City University of New York - Brooklyn College
    I published on this, way back in 1980, in a now-defunct journal, Marine Biology Letters ("Time course of light intensity adaptation in a marine diatom... [more]
  • Answer added in Plant Biotechnology
    4 Help, LR recombination reaction
    By Miguel Ángel García Viera · Center for Research and Advanced Studies of the National Polytechnic Institute
    Maxi Rothbart · Humboldt University of Berlin
    Anyway in the vector is ok i think 
  • Answer added in Molecular Evolution
    4 Software for producing Multiple sequence alignments graphics for publications?
    By Daniel Osorio · Université Pierre et Marie Curie Paris 6
    Daniel Osorio · Université Pierre et Marie Curie Paris 6
    Thanks guys! 
  • Answer added in Delusion
    52 What constitutes a "bizarre delusion" that meets Criteria A for a DSM-IV diagnosis of schizophrenia?
    By Neil Krohn · Sr. Analyst, WellPoint, Inc.,
    Al Porterfield · Oberlin College
    OK. What I'm trying to point out is that slavish adherence to a diagnostically-sketchy DSM rule does not lead to improved clinical outcomes. My diagn... [more]
  • Question asked in Crystal Growth
    New Atomic Force microscopy (AFM) and Piezoresponse Force microscopy (PFM)
    I have grown piezoelectric crystals in gel medium by chemical reaction method. What all specific studies can be made from AFM and PFM for my crystals?... [more]
    By Mathivanan Velumani · United Institute of Technology
  • Answer added in Yeast Genetics
    5 How to perform a PCR based gene disruption, when the target gene is 'oriented with respect to the Crick (bottom) strand' ?
    By Madhuja Samaddar · Indian Institute of Science
    Neil Adames · Virginia Polytechnic Institute and State University
    If you are using a pUG or pFA6a- based disruption cassette plasmid, the HIS3 marker will be driven by its own promoter (either HIS3pr or TEF promoter)... [more]
  • Answer added in Islam
    39 The Impact of Culture and Religion
    By Jahnekque Blake · McMaster University
    Silvia Lozeva · Curtin University Australia
    Well, after reading most of the above, I think the main question you should ask yourself is not the actual distinction between the two (if any), but T... [more]
  • Answer added in Cognition
    5 Do you feel cognition may seem more about hiding fear than about knowing things with any certainty?
    By Lonny Meinecke · Grand Canyon University
    Lonny Meinecke · Grand Canyon University
    Thanks Robert – yes and yes. One, yes my response was pretty cloudy (in reducing lots of notes the connecting arguments got left out). And two, our ... [more]
  • Question asked in Mobile Robotics
    New Someone knows the technical characteristics of the new brick MINDSTORMS EV3?
    In my university, there are research projects that they work in mobile robots with LEGO MINDSTORMS NXT and I need to begin my research project with th... [more]
    By Giovanni Bermudez · Universidad Distrital Francisco José de Caldas
  • Answer added in Volcanic Eruptions
    10 Can someone give me an idea about the rock fragments on the picture below ?
    By Chako Tchamabe Boris · Tokai University
    Chako Tchamabe Boris · Tokai University
    No dear Thomas. There is no evidence of fumarole in the region. Thanks. I think it may be the effect of hydrothermalism as suggested by Prof James Wh... [more]
  • Answer added in Nursing science
    2 Is there a difference between illness and disease in what we do as nurses
    By John Grootjans · University of Sydney
    Wolfgang Seger · Medical Health Advisory Board of Social Health and Long Term Care Insurances in Lower Saxony / Germany
    I took the position of a medical doctor. To my understanding the nursing position is not different. We all work in a team, everyone adding his compe... [more]
  • 10 What is "passive" and what "active" in electricity and electronics? Can we make passive elements become "less passive", "neutral" or even active?
    By Cyril Mechkov · Technical University of Sofia
    Lutz von Wangenheim · Hochschule Bremen
    Quote Gregg A.: "From a practical perspective though, I think it's perfectly fine to say that all devices we know how to build that can amplify signal... [more]
  • Answer added in Conservation Biology
    4 What do you think about the Carbon Market future? Do you think REDD+ and VCS could help at all?
    By Leila Tavallali · University of Essex
    Silvia Lozeva · Curtin University Australia
    The experiment is on in Australia, where it was introduced last year. 
  • Answer added in Electronic Engineering
    1 How does the n+ emitter layer affect the performance of the n+p Si solar cells?
    By Abdelhalim Zekry · Ain Shams University
    Daniel Biro · Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    To give a few starting points to this complex field: The EDNA calculation tool from Keith R. McIntosh and Pietro P. Altermatt is perfectly suited to ... [more]
  • 23 Should undergraduates aim to get published?
    By Jahnekque Blake · McMaster University
    Silvia Lozeva · Curtin University Australia
    Haha, I think your answers fitted in perfectly well! 
  • Question asked in help ResearchGate
    New Is there a help or reference section on use of basic features within ResearchGate? How do you get there?
    I have found what looks like the beginning of a help section at help.researchgate.net. It sends me back to the live feed of questions though. It has a... [more]
    By Casson Stallings · Alion Science and Technology
  • Answer added in Material Characteristics
    2 Could anyone give information about the solubility limits of Si in SiO2 (amorphous, quartz etc.)?
    By Andrey Sarikov · National Academy of Sciences of Ukraine
    Philip Howie · University of Cambridge
    I can't give an exact answer, particularly for amorphous SiO2, but every phase diagram I've found (for example, http://link.springer.com/article/10.1... [more]
  • Answer added in Biological Conservation
    11 Whats the difference between conservation, preservation and protection?
    By gul e Arzoo · Government College University, Lahore
    Silvia Lozeva · Curtin University Australia
    and of course, there is sustainability, which means to meet the needs of current generations, without compromising the needs of future generations.  
  • Question asked in Document Analysis
    New Can someone please refer me to any research book that treat thematic coding.
    Having trouble on how to use thematic coding to analyse date 
    By Sunday Igboanugo · Cape Peninsula University of Technology
  • Answer added in Commutative Algebra
    2 What is the next step in computational commutative algebra?
    By Omid Ghayour · Shahid Chamran University of Ahvaz
    Viktor Levandovskyy · Rheinisch-Westfälische Technische Hochschule Aachen
    Of course. Since many years there are various flavours of noncommutative Groebner bases around. There are books as wells as computer algebra systems. ... [more]
  • Answer added in String Theory
    13 Do we believe that quarks are elementary, or are they composite?
    By Juansher Chkareuli · Ilia State University
    Ilja Schmelzer · Independent Researcher
    @Juansher Chkareuli: It is hard to explain in a few lines, see ilja-schmelzer.de/matter for some simple introduction. A quite simple lattice of eleme... [more]
  • Question asked in Statistical Quality Control
    New Survey Study (Quality Management Systems)
    Hello, I am Master's Industrial Engineering student at Concordia University, Montreal. For my thesis, I have proposed a Hypothesis model regarding the... [more]
    By Manjot Singh Bhatia · Concordia University Montreal
  • Answer added in MATLAB
    5 How to present different visual stimulus according to serial input (trigger) received in Psychtoolbox in Matlab?
    By Lijo Varughese Chacko · University of Strathclyde
    Lijo Varughese Chacko · University of Strathclyde
    Dear Prof Jens, Thanks a lot for your suggestion. I will go through the tutorials of your ASF toolbox. Regarding the setup, the PC which runs CED s... [more]
  • Answer added in Philosophy
    75 Does certainty or absolute truth exist?
    Jonte Vowinckel · Universiteit Twente
    Dear Pritish, how do we "get" absolute truth? Through which senses, intuitions or whatever could we perceive truth without changing it? 
  • Question asked in Organic Synthesis
    New Plz help me !!
    How to produce 3-methyl hexen-1-ol-3 in few steps?? 
  • New Survey Study (Quality Management Systems)
    Hello, I am Master's Industrial Engineering student at Concordia University, Montreal. For my thesis, I have proposed a Hypothesis model regarding the... [more]
    By Manjot Singh Bhatia · Concordia University Montreal
  • Answer added in Laser
    2 What the simplest way to collimate an astigmatic beam?
    By Ran Aharoni · Bar Ilan University
    Samuel Arba Mosquera · Independent Researcher
    Maybe the easiest is just putting a cylindrical lens with 155-170mm focal affecting the x axis and being neutral for the y axis. 
  • Answer added in Primates
    1 Vervet monkey locality data to assist mapping areas of anthropogenic risk to these conflict species?
    By Aoife Healy · Oxford Brookes University
    Andreas Meyer · Universidade Federal do Paraná
    Have you already checked the gbif.org? You can find thousands of Chlorocebus records there. If you are interested, other databases for land use, human... [more]