Simultaneously toughening and stiffening elastomers with octuple hydrogen bonding

…, Z Xia, Y Qi, T Sumigawa, J Wu, P Šesták… - Advanced …, 2021 - Wiley Online Library
Current synthetic elastomers suffer from the well‐known trade‐off between toughness and
stiffness. By a combination of multiscale experiments and atomistic simulations, a transparent …

Atomistic approaches to cleavage of interfaces

M Černý, P Šesták, P Řehák… - … and Simulation in …, 2019 - iopscience.iop.org
… Although they neglected Poisson contraction (ie their tensile tests corresponded to the
OUD model), the calculated σ max values were decreasing with increasing P concentration …

[HTML][HTML] Strength and brittleness of interfaces in Fe-Al superalloy nanocomposites under multiaxial loading: An ab initio and atomistic study

P Šesták, M Friák, D Holec, M Všianská, M Šob - Nanomaterials, 2018 - mdpi.com
We present an ab initio and atomistic study of the stress-strain response and elastic stability
of the ordered Fe 3 Al compound with the D0 3 structure and a disordered Fe-Al solid …

Ab initio tensile tests of grain boundaries in the fcc crystals of Ni and Co with segregated sp-impurities

M Černý, P Šesták, P Řehák, M Všianská… - Materials Science and …, 2016 - Elsevier
… Only in the cases of Si and P, the strength calculated for a cleavage plane located between
the … 3 and for P we got a reduction by 3.7 GPa to the value of 25.5 GPa which is just a little bit …

[HTML][HTML] On agreement of experimental data and calculated results in grain boundary segregation

M Černý, P Šesták, M Všianská, P Lejček - Metals, 2022 - mdpi.com
There are two sources of quantitative data on grain boundary segregation: careful experimental
results and calculated data. These values can be compared in various ways. Here we …

Brittle and ductile behavior in monolayer MoS2

J Liu, P Šesták, Z Zhang, J Wu - Materials Today Nano, 2022 - Elsevier
Using first-principles calculations, we study the response of monolayer MoS 2 with pentagon–heptagon
(5|7) pair defect-dominated grain boundary (GB) to an in-plane tension. Brittle or …

Human immunodeficiency virus infection, the acquired immunodeficiency syndrome, and inflammatory bowel disease

…, RA Herrick, JN Amar, PM Sestak… - Journal of clinical …, 1996 - journals.lww.com
The objective of this study was to determine the effect of human immunodeficiency virus (HIV)
infection/acquired immunodeficiency syndrome (AIDS) on inflammatory bowel disease (…

Susceptibility to AIDS progression appears early in HIV infection

…, TN Le, JSG Montaner, B Douglas, P Sestak… - Aids, 1990 - journals.lww.com
… ; P= 0002) and exhibited significantly lower hemoglobin concentrations (148 versus 152; P =
… )A (272 versus 184 mg/dl; P = 0003) and IgG levels (1530 versus 1300mg/dl; P= 0037). No …

Progression to AIDS and predictors of AIDS in seroprevalent and seroincident cohorts of homosexual men

…, KJP Craib, TN Le, B Willoughby, B Douglas, P Sestak… - Aids, 1989 - journals.lww.com
As part of an ongoing prospective study of seropositive homosexual men in Vancouver,
Canada, a seroprevalent cohort of 246 subjects (ie duration of infection unknown) and a …

The effect of cigarette smoking on lymphocyte subsets and progression to AIDS in a cohort of homosexual men.

…, JS Montaner, TN Le, P Sestak… - … Medecine Clinique et …, 1992 - europepmc.org
We investigated the effect of cigarette smoking on the percentage of CD4 and CD8 cells (CD4%,
CD8%) within a prospective study of homosexual men in Vancouver, Canada and …