G
o
o
g
l
e
×
Si us plau cliqueu
aquí
si no se us redirecciona en pocs segons
Tot
Imatges
Vídeos
Notícies
Maps
Shopping
Llibres
Eines de cerca
Recents
Recents
La darrera hora
Les 24 darreres hores
La setmana passada
El darrer mes
El darrer any
Arxius
Ordenats per rellevància
Ordenats per rellevància
Ordenats per data
Even the Smartest Mathematicians Can't Solve the Collatz Conjecture
HowStuffWorks
The Collatz conjecture can be worked on by 9-year-old math whizzes, but it's flummoxed some of the greatest minds of the past century.
Fa 7 mesos
Principled distillation of UK Biobank phenotype data reveals underlying structure in human variation
Nature
We distill hundreds of variables (diagnoses, assessments and survey items) into 35 latent constructs, using data from unrelated individuals with predominantly...
Fa 3 mesos
Estimated global and regional causes of deaths from diarrhoea in children younger than 5 years during 2000–21: a systematic review and Bayesian multinomial analysis
The Lancet
We aimed to conduct a systematic analysis of studies to report estimates of the causes of deaths from diarrhoea in children younger than 5 years at global and...
Fa 5 mesos
How to do math on the Linux command line
Network World
There are quite a few interesting commands for doing math on Linux systems, including the expr, factor, jot, and bc commands.
Fa 10 mesos
Near-ultraviolet photon-counting dual-comb spectroscopy
Nature
Ultraviolet spectroscopy provides unique insights into the structure of matter with applications ranging from fundamental tests to...
Fa 7 mesos
A Novel Adaptive Square Root UKF with Forgetting Factor for the Time-Variant Parameter Identification
Wiley Online Library
The unscented Kalman filter (UKF) serves as an efficient estimator widely utilized for the recursive identification of parameters.
Fa 13 mesos
Gravity surveys using a mobile atom interferometer
Science | AAAS
Mobile gravimetry is important in metrology, navigation, geodesy, and geophysics. Atomic gravimeters could be among the most accurate mobile gravimeters but...
Fa 37 mesos
New year conundrum: complete the equation 10 9 8 7 6 5 4 3 2 1 0 = 2014
The Guardian
Alex Bellos: This annual numerical challenge will delight recreational mathematicians with time on their hands.
Fa 129 mesos
Observations of high-order multiplicity in a high-mass stellar protocluster
Nature
Here we report the discovery of one quintuple, one quadruple, one triple and four binary protostellar systems simultaneously forming in a single high-mass...
Fa 8 mesos
Analysis of hygroscopic self-shaping wood at large scale for curved mass timber structures
Science | AAAS
We propose an efficient form-giving mechanism for large-scale curved mass timber by using bilayered wood structures capable of self-shaping by moisture content...
Fa 60 mesos
