Advanced Analysis of Clay Microporosity Using High-Resolution N-Ar Adsorption Isotherms Coupled with the Derivative Isotherm Summation Method.

The textural properties of synthetic and natural clays in the sodium form and exchanged with tetramethylammonium cations (TMA) were characterized using N and Ar physisorption isotherms at cryogenic temperatures. Specific surface areas and micro/mesoporous volumes were determined using the BET and the models. The analysis requires the use of reference isotherms measured at the same temperature on the surface of non-porous materials with an identical chemical composition.

[Modern approaches in endovascular and endoscopic treatment of isolated splenic injury].

Objective: To analyze treatment outcomes in patients with traumatic spleen injury and improve their management through introduction of modern approaches.

Material And Methods: We retrospectively analyzed treatment outcomes in 126 patients with spleen injury who underwent surgery between 2018 and 2023. Analysis was performed using Excel and Statistica software, as well as Spearman correlation and χ tests.

Poland's syndrome and breast cancer: coincidence or not?

Poland's syndrome is an uncommon congenital anomaly of unknown etiology, the main characteristic of which is the absence of the major pectoral muscle. Thorax and upper limb malformations also may be present. Poland's syndrome has been observed in clinical cases connected to a variety of neoplasia, primarily hematological disorders.

[Endovascular technologies in the treatment of patients with blunt abdominal trauma].

Trauma is one of the leading causes of disability and mortality in working-age population. Abdominal injuries comprise 20-30% of traumas. Uncontrolled bleeding is the main cause of death in 30-40% of patients.