Leandro Martínez
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lmiq.bsky.social
Leandro Martínez
@lmiq.bsky.social
230 followers 49 following 28 posts
Computational chemist - http://m3g.iqm.unicamp.br
Posts Media Videos Starter Packs
How Designed Liquids Are Revolutionizing Our Understanding of Proteins

cces.unicamp.br/how-designed...
Reposted by Leandro Martínez
“Before Noether’s theorem, the principle of conservation of energy was shrouded in mystery,” the physicist and mathematician Feza Gürsey wrote in 1983. “… Noether’s simple and profound mathematical formulation did much to demystify physics.”
https://buff.ly/414iuVL
How Noether’s Theorem Revolutionized Physics | Quanta Magazine
Emmy Noether showed that fundamental physical laws are just a consequence of simple symmetries. A century later, her insights continue to shape physics.
buff.ly
Reposted by Leandro Martínez
Qual o papel do cientista na sociedade?
Com Ronaldo Aloise Pilli, IQ Unicamp, e José Mário Martínez, IMECC da Unicamp. Pilli e Martínez são membros da Academia Brasileira de Ciências (ABC).
www.youtube.com/watch?v=lf_X...
cc @lmiq.bsky.social
Qual o papel do cientista na sociedade?
YouTube video by TV Unicamp
www.youtube.com
Transfer free energies of native and denatured states of proteins to urea and TMAO are computed. The reweighed stability affects folding pathways. This work is possible by using minimum distance distribution functions and the ComplexMixtures.jl package. #compchem #chemsky #julialang
Osmolyte-Induced Structural and Thermodynamic Effects on the Protein Folding Landscape
Understanding how osmolytes influence protein folding is fundamental in biology and biotechnology. We developed a computational pipeline to investigate the structural and thermodynamic effects of osmolytes across the protein folding landscape: Using coarse-grained simulations to generate folding ensembles, we then employed atomistic simulations to explore each conformation in aqueous solutions of urea and TMAO. Minimum-distance distribution functions and the Kirkwood-Buff solvation theory provide unprecedented details on the solvation structures and thermodynamics. We studied two model proteins: the β-sheet SH3 domain and the helical B domain of protein A (BdpA). Urea stabilizes most denatured states, while TMAO destabilizes them. However, urea destabilizes partially denatured states of BdpA, which are only marginally affected by TMAO, demonstrating that osmolytes can selectively interfere with denaturation pathways. We show that urea-induced denaturation arises from strengthened non-specific interactions in unfolded states, leading to increased protein dehydration. Cosolvent effects on folding free energies match experimental data within 1 kcal/mol, validating force-fields and analysis methods. These findings provide a novel perspective on osmolyte-protein interplay, with implications for solvent and biomolecular design. ### Competing Interest Statement The authors have declared no competing interest.
www.biorxiv.org
A associação "comemora". Produtores canalhas e burros.
"Na prática, a legislação acaba com a moratória da soja, um acordo que proíbe, desde 2008, a compra de grãos de áreas desmatadas da Amazônia e que atinge principalmente as empresas que comercializam o grão (tradings) especialmente para o mercado externo."

agro.estadao.com.br/agropolitica...
Aprosoja MT comemora aprovação de projeto contra moratória da soja | Agro Estadão
Proposta impede a concessão de incentivos fiscais e terrenos públicos a empresas organizadas em acordos que restrinjam a competitividade do produto mato-grossense
agro.estadao.com.br
Lugar certo na hora certa. Tipo o Watson.
Os programas deveriam descrever eles mesmos a relevância do seu trabalho conjunto, dando os destaques que julgarem importantes. E isto deveria ser avaliado em vez de um monte de numerinhos. Seria muito mais interessante os programas competindo para ter algo realmente relevante para relatar.
Similar to what happens with minimum wage increases and distributive programs.
"Immigrants often increase employment among the native-born. Why? Because they spend much of their earnings where they live and work, helping create local jobs."

In other words, immigrants are people. They supply *and demand* labor. They demand *and supply* goods and services. Of course they do.
Reposted by Leandro Martínez
Juíza condena cientistas por criticarem post que associava diabetes a parasitas

➡️ O duo NuncaVi1Cientista, formado pela bióloga Ana Bonassa (especialista no metabolismo do diabetes) e pela farmacêutica Laura Marise, terá de indenizar o autor da desinformação
São todas criadas por Brasileiros? Que interessante.
Essas três têm relação entre si?
I confess sometimes I have to code in Python.
Jabuticabeira em flor