Results 21 to 30 of about 15,652,676 (359)
Complex Receptive Fields in Primary Visual Cortex [PDF]
In the early 1960s, Hubel and Wiesel reported the first physiological description of cells in cat primary visual cortex. They distinguished two main cell types: simple cells and complex cells. Based on their distinct response properties, they suggested that the two cell types could represent two consecutive stages in receptive-field construction ...
Martínez, Luis M., Alonso, José-Manuel
openaire +3 more sources
Primary production of the biosphere: integrating terrestrial and oceanic components
Integrating conceptually similar models of the growth of marine and terrestrial primary producers yielded an estimated global net primary production (NPP) of 104.9 petagrams of carbon per year, with roughly equal contributions from land and oceans ...
C. Field +3 more
semanticscholar +1 more source
Introduction: Perinatal mortality comprises of the total number of stillbirths and deaths within the first seven days of life. Kwekwe District reported a 59.92% increase in perinatal deaths from 247 in 2017 to 395 in 2020.
Nyashadzashe Cosmas Makova +5 more
doaj +1 more source
Background Malaria is a leading cause of morbidity and mortality among forcibly displaced populations, including refugees, approximately two-thirds of whom reside in malaria endemic regions.
Kudzai Patience Takarinda +6 more
doaj +1 more source
Logarithmic primary fields in conformal and superconformal field theory [PDF]
17 pages LaTeX 2e, references added, journal details ...
openaire +2 more sources
Terrestrial gross primary production: Using NIRV to scale from site to globe
Terrestrial photosynthesis is the largest and one of the most uncertain fluxes in the global carbon cycle. We find that near‐infrared reflectance of vegetation (NIRV), a remotely sensed measure of canopy structure, accurately predicts photosynthesis at ...
Grayson Badgley +3 more
semanticscholar +1 more source
Background Edo State Surveillance Unit observed the emergence of a disease with “no clear-cut-diagnosis”, which affected peri-urban Local Government Areas (LGAs) from September 6 to November 1, 2018.
E. Nwachukwu William +25 more
doaj +1 more source
Optimal collimation of misaligned optical systems by concentering primary field aberrations.
A collimation method of misaligned optical systems is proposed. The method is based on selectively nullifying main alignment-driven aberration components.
Hanshin Lee
semanticscholar +1 more source
Background Routine childhood immunization remains an important strategy for achieving polio eradication and maintaining a polio-free world. To address gaps in reported administrative coverage data, community surveys were conducted to verify coverage, and
Terna I. Nomhwange +8 more
doaj +1 more source
INTRODUCTION: Inspite of demonstrable evidence of the preventive and protective ability of vaccines to reduce the outbreak of vaccine-preventable diseases, there are still some significant disease outbreaks recorded in our communities.
Olaniyan Akintunde Babatunde +5 more
doaj +1 more source

