Skip to content
SciDev Logo

Bringing science & development together through news & analysis

logo-mobile
Menu Close
  • Agriculture
    • Farming
    • Fisheries
    • Food security
    • Forestry
    • GM
    • Livestock
  • Environment
    • Biodiversity
    • Biofuels
    • Bioprospecting
    • Climate change
    • Conservation
    • Desert science
    • Disasters
    • Earth science
    • Energy
    • Nuclear
    • Pollution
    • Water
  • Health
    • Children
    • Coronavirus
    • Disease
    • Ebola
    • Genomics
    • HIV/AIDS
    • Malaria
    • Medicine
    • Nutrition
    • Systems
    • TB
  • Governance
    • Aid
    • Cities
    • Conflict
    • Cooperation
    • Ethics
    • Gender
    • Human rights
    • Indigenous
    • MDGs
    • Migration
    • Policy
    • Science diplomacy
    • SDGs
    • Sustainability
    • Vulnerability
  • Enterprise
    • Biotechnology
    • Data
    • Design
    • Digital divide
    • Engineering
    • Funding
    • Innovation
    • Intellectual property
    • Knowledge economy
    • R&D
    • Technology
    • Trade
    • Transport
  • Communication
    • Capacity building
    • Education
    • Evaluation
    • AI
    • ICTs
    • Influencing
    • Journalism
    • Networks
    • Publishing
  • More
    • Work with us
      • Work with us
      • Support our work
      • Stories of impact
      • Weekly news alert
      • Donate to us
      • Use our content
      • Pitch to us
    • See our content
      • News
      • Explainer
      • Features
      • SciDev.Net in-depth
      • Podcasts
      • Role models
      • Spotlights
      • Series
      • SciDev.Net at large
      • Columns
      • Data visualisation
      • Editorials
      • Multimedia
      • Opinion
      • Supported content
    • Training by SciDev.Net
      • Script
      • Practical guides
      • Learning series
    • About us
      • About us
      • What we do
      • Who we are
      • Stories of impact
      • Our policies
      • Site map
      • Contact us
  • Editions Global
    • Afrique Sub-Saharienne
    • América Latina y el Caribe
    • Asia & Pacific
    • Sub-Saharan Africa
    • الشرق الأوسط وشمال أفريقيا
Search
Sign up
  • Agriculture
    • Farming
    • Fisheries
    • Food security
    • Forestry
    • GM
    • Livestock
  • Environment
    • Biodiversity
    • Biofuels
    • Bioprospecting
    • Climate change
    • Conservation
    • Desert science
    • Disasters
    • Earth science
    • Energy
    • Nuclear
    • Pollution
    • Water
  • Health
    • Children
    • Coronavirus
    • Disease
    • Ebola
    • Genomics
    • HIV/AIDS
    • Malaria
    • Medicine
    • Nutrition
    • Systems
    • TB
  • Governance
    • Aid
    • Cities
    • Conflict
    • Cooperation
    • Ethics
    • Gender
    • Human rights
    • Indigenous
    • MDGs
    • Migration
    • Policy
    • Science diplomacy
    • SDGs
    • Sustainability
    • Vulnerability
  • Enterprise
    • Biotechnology
    • Data
    • Design
    • Digital divide
    • Engineering
    • Funding
    • Innovation
    • Intellectual property
    • Knowledge economy
    • R&D
    • Technology
    • Trade
    • Transport
  • Communication
    • Capacity building
    • Education
    • Evaluation
    • AI
    • ICTs
    • Influencing
    • Journalism
    • Networks
    • Publishing
  • More
    • Work with us
      • Work with us
      • Support our work
      • Stories of impact
      • Weekly news alert
      • Donate to us
      • Use our content
      • Pitch to us
    • See our content
      • News
      • Explainer
      • Features
      • SciDev.Net in-depth
      • Podcasts
      • Role models
      • Spotlights
      • Series
      • SciDev.Net at large
      • Columns
      • Data visualisation
      • Editorials
      • Multimedia
      • Opinion
      • Supported content
    • Training by SciDev.Net
      • Script
      • Practical guides
      • Learning series
    • About us
      • About us
      • What we do
      • Who we are
      • Stories of impact
      • Our policies
      • Site map
      • Contact us

You are looking at all articles by Joris Tielens

Warning that tech fixes for rubbish often go to waste

News

Warning that tech fixes for rubbish often go to waste

05/06/15

WHO urges disclosure of all results from drug trials

News

WHO urges disclosure of all results from drug trials

23/04/15

Mixed results for yellow cassava’s vitamin A trial

News

Mixed results for yellow cassava’s vitamin A trial

28/07/14

Nitrogen fixation helps double some African farm yields

News

Nitrogen fixation helps double some African farm yields

04/11/13

Load more
  • Follow Us

Joris Tielens

Profile

Thanks to funding/support from:

SCIDEV_footer_02-sida
SCIDEV_footer_02-science

SciDev.Net is not responsible for the content of external Internet sites

All site content, except where otherwise noted, is licensed under a Creative Commons Attribution License

© 2026 SciDev.Net is a registered trademark.

  • About Us
  • Privacy policy
  • Cookies
  • Cookie Settings
  • Accessibility
  • Corrections/Feedback
  • Creative Commons
  • Site map

Site Maintained by Modular.