Reading time: 8 minutesSe você faz uma busca rápida na internet sobre agressividade em guppies (Poecilia reticulata), a resposta que mais vai encontrar é quase um clichê: “Aumente o aquário ou ajuste a proporção para 1 macho para 3 fêmeas”. Na teoria, excelente. Na prática de quem mantém um nanoaquário, como o meu de 33 litros, esse conselho genérico …
O Enigma do Aquário Verde com Nitrato Alto: Entendendo a Limitação Nutricional
Reading time: 5 minutesO Enigma do Aquário Verde com Nitrato Alto: Entendendo a Limitação Nutricional Você montou o aquário dos seus sonhos. Ele está exuberante, cheio de plantas verdes e vibrantes, formando uma verdadeira selva subaquática. Satisfeito, você faz seus testes de parâmetros de rotina e leva um susto: o Nitrato (NO3−) está nas alturas, talvez acima de 40 ou 50 ppm. A primeira reação é de …
Por que alimentar seu aquário plantado à noite pode ser um risco invisível?
Reading time: 9 minutesPara quem mantém um aquário plantado (especialmente nanoaquários ou sistemas de menor volume), a rotina de manutenção e alimentação costuma parecer simples: colocar ração uma ou duas vezes ao dia. No entanto, o horário em que o alimento é oferecido tem um impacto direto sobre a bioquímica da água, a estabilidade das colônias bacterianas e a saúde …
How Open-source Companies Build Sustainable Revenue Models
Reading time: 6 minutesOpen-source software powers much of the modern world, but how do the companies behind it stay afloat? While some rely solely on open-source solutions, others combine open and proprietary models to build sustainable businesses. The relationship between a business and its software project also varies—some companies are founded alongside new open-source projects, while others emerge …
Nextflow and nf-core: Hot news!
Reading time: 7 minutesRead this post in Portuguese by clicking here. I write this post while I’m still in Spain, in the city of Barcelona. For those who haven’t been following me on social media, in July I finished my PhD in France and went straight to Barcelona, to do the onboarding week at Seqera Labs, the company …
Best links of the week #89
Reading time: 3 minutesBest links of the week from December 7th to February 22nd. Links Statistics 101 – Probability distributions (Shiny App). Graphoid. Fuzzy Logic Overview by Erik Horstkotte at his page. Fuzzy Expert Systems by Erik Horstkotte at his page. Fuzzy Environmental Control by Erik Horstkotte at his page. Align (LaTeX environment) at LaTeX Wiki.
Best links of the week #88
Reading time: 1 minuteBest links of the week from November 12nd to December 7th. Links Baldwin Effect at Wikipedia. Principal Component Analysis in 3 Steps by Sebastian Raschka at his website. Baffled by Covariance vs. Correlation? You’re Not Alone by Srishti Saha at builtin. Chi-Square Test of Independence in R at STHDA. Dealing with Model Assumption Violations. Accepted …
Best links of the week #87
Reading time: 3 minutesBest links of the week from September 2nd to November, 11th. Links Creative Thinking by Claude Shannon at Yousouf Naderi’s website. Latin Square Analysis of Variance at StatsDirect. BAYESIAN NETWORKS AND THE SEARCH FOR CAUSALITY at Ricardo Silva’s website. Triadic closure at Wikipedia. Balance theory at Wikipedia. The 5-Day Regression Challenge by Rachael Tatman at …
Best links of the week #86
Reading time: 3 minutesBest links of the week from August 2nd to September 21st Links Maximum Likelihood Estimates by Jeremy Orloff and Jonathan Bloom. Moravec’s paradox at Wikipedia. Parrondo’s paradox at Wikipedia. R-squared Cautions at STAT 462 (Applied Regression Analysis), PennState University. Spearman’s correlation. CausalCity: Introducing a high-fidelity simulation with agency for advancing causal reasoning in machine learning …
Best links of the week #85
Reading time: 3 minutesBest links of the week from April 20th to August 1st (sorry for the delay 🙂 ) Links What is the difference between beta and correlation coefficient? at Quora. Is linear regression obsolete? at Cross Validated. Are linear models still useful at all? at r/datascience. Why Momentum Really Works at Distill. Who Learns Better Bayesian …