Results 81 to 90 of about 56,921 (146)

User producer interaction in context: A classification [PDF]

open access: yes
Science, Technology and Innovation Studies show that intensified user producer interaction (UPI) increases chances for successful innovations, especially in the case of emerging technology.
Ellen Moors, Roel Nahuis, Ruud Smits
core  

Revising the roads investment strategy in rural areas : an application for Uganda [PDF]

open access: yes
Based on extensive data collection in Uganda, this paper demonstrates that the rural access index, as defined today, should not be a government objective because the benefit of such investment is minimal, whereas achieving rural accessibility at less ...
Macchi, Patricia   +3 more
core  

History of ball bearings [PDF]

open access: yes
The familiar precision rolling-element bearings of the twentieth century are products of exacting technology and sophisticated science. Their very effectiveness and basic simplicity of form may discourage further interest in their history and development.
Dowson, D., Hamrock, B. J.
core   +1 more source

Couple-close: Unified approach to semisaturated cyclic scaffolds. [PDF]

open access: yesScience
Xie J   +9 more
europepmc   +1 more source

Barriers to active transport modes in Tehran, Iran: a qualitative study from the citizens' perspective. [PDF]

open access: yesBMC Public Health
Mirzania M   +5 more
europepmc   +1 more source

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