27 research outputs found
ΠΠΈΠ½Π°ΠΌΠΈΠΊΠ° ΠΊΠ»ΠΈΠ½ΠΈΠΊΠΎ-Π»Π°Π±ΠΎΡΠ°ΡΠΎΡΠ½ΡΡ ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»Π΅ΠΉ ΠΏΡΠΈ ΠΎΡΡΡΠΎΠΉ Π΄ΡΡ Π°ΡΠ΅Π»ΡΠ½ΠΎΠΉ Π½Π΅Π΄ΠΎΡΡΠ°ΡΠΎΡΠ½ΠΎΡΡΠΈ Ρ ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² Ρ COVID-19
With a traditional approach to treatment of hypoxemic respiratory failure, it is believed that SpO2 reduction below 88-90% during oxygen therapy requires emergency care including invasive mechanical ventilation. However, the manifestations of hypoxemic respiratory failure in COVID-19 patients have certain features that have led to the change in the traditional respiratory support procedure. The therapeutic goals of respiratory support in this category of patients require clarification.The objective: in patients with COVID-19, to study the relationship of transcutaneous saturation values with clinical indicators that characterize ARF, the state of acid-base balance and blood gas composition.Subjects and methods. A multicenter prospective observational study included 90 COVID-19 patients treated in ICU whose transcutaneous saturation (SpO2) values were below 93% despite treatment. Depending on the degree of impaired oxygenation, patients underwent oxygen therapy through a mask or nasal cannula, high-flow oxygenation or non-invasive ventilation, while it was not always possible to achieve the target values of oxygenation parameters. The patients were divided into the following groups: Group 1 β SpO2 above 93%, Group 2 β SpO2 within 93β90%, Group 3 β SpO2 within 85β89%, Group 4β SpO2 within 80β84%, Group 5 β SpO2 within 75β79%, and Group 6 β below 75%.Results. It was revealed that during ARF management by noninvasive methods, different values of transcutaneous saturation and corresponding changes in the acid-base balance (ABB) and blood gas composition were determined When transcutaneous saturation (SpO2) decreased to 85%, there was a corresponding moderate decrease in PaO2 while no metabolic changes occurred. As a rule, there were no obvious clinical signs of respiratory failure (silent hypoxia). In patients with SpO2 reduction down 80β85%, clinical signs of respiratory failure (dyspnea, tachypnea, agitation) and, as a rule, a moderate increase in PΠ°CO2 with the development of respiratory acidosis and compensatory metabolic alkalosis were noted. When SpO2 decreased down to 75β79%, arterial hypoxemia was usually accompanied by moderate hypercapnia and the development of decompensated mixed acidosis and venous desaturation as well as increased lactate levels. With transcutaneous saturation going below 74%, these changes were even more pronounced and were observed in all patients of this group.Conclusion. The revealed changes are mostly consistent with generally accepted ideas about the relationship between values of transcutaneous saturation and blood gas composition and parameters of blood ABB in the case of ARF. Reduction of transcutaneous saturation down to 85% not accompanied by pronounced clinical signs of respiratory failure (dyspnea, tachypnea, agitation), development of acidosis and venous desaturation, and the elevated lactate level can be regarded as relatively safe.ΠΡΠΈ ΡΡΠ°Π΄ΠΈΡΠΈΠΎΠ½Π½ΠΎΠΌ ΠΏΠΎΠ΄Ρ
ΠΎΠ΄Π΅ ΠΊ ΡΠ΅ΡΠ°ΠΏΠΈΠΈ Π³ΠΈΠΏΠΎΠΊΡΠ΅ΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ Π΄ΡΡ
Π°ΡΠ΅Π»ΡΠ½ΠΎΠΉ Π½Π΅Π΄ΠΎΡΡΠ°ΡΠΎΡΠ½ΠΎΡΡΠΈ ΡΡΠΈΡΠ°Π΅ΡΡΡ, ΡΡΠΎ ΡΠ½ΠΈΠΆΠ΅Π½ΠΈΠ΅ SpO2 Π½ΠΈΠΆΠ΅ 88β90% Π½Π° ΡΠΎΠ½Π΅ ΠΏΡΠΎΠ²ΠΎΠ΄ΠΈΠΌΠΎΠΉ ΠΎΠΊΡΠΈΠ³Π΅Π½ΠΎΡΠ΅ΡΠ°ΠΏΠΈΠΈ ΡΡΠ΅Π±ΡΠ΅Ρ ΡΠΊΡΡΡΠ΅Π½Π½ΠΎΠΉ ΠΊΠΎΡΡΠ΅ΠΊΡΠΈΠΈ, Π²ΠΏΠ»ΠΎΡΡ Π΄ΠΎ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ ΠΈΠ½Π²Π°Π·ΠΈΠ²Π½ΠΎΠΉ ΠΈΡΠΊΡΡΡΡΠ²Π΅Π½Π½ΠΎΠΉ Π²Π΅Π½ΡΠΈΠ»ΡΡΠΈΠΈ Π»Π΅Π³ΠΊΠΈΡ
. ΠΠ΄Π½Π°ΠΊΠΎ ΠΏΡΠΎΡΠ²Π»Π΅Π½ΠΈΡ Π³ΠΈΠΏΠΎΠΊΡΠ΅ΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ Π΄ΡΡ
Π°ΡΠ΅Π»ΡΠ½ΠΎΠΉ Π½Π΅Π΄ΠΎΡΡΠ°ΡΠΎΡΠ½ΠΎΡΡΠΈ Ρ ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² Ρ COVID-19 ΠΈΠΌΠ΅ΡΡ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Π½ΡΠ΅ ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎΡΡΠΈ, ΠΊΠΎΡΠΎΡΡΠ΅ ΠΏΡΠΈΠ²Π΅Π»ΠΈ ΠΊ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΡ ΡΡΠ°Π΄ΠΈΡΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ Π°Π»Π³ΠΎΡΠΈΡΠΌΠ° ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΈΡ ΡΠ΅ΡΠΏΠΈΡΠ°ΡΠΎΡΠ½ΠΎΠΉ ΠΏΠΎΠ΄Π΄Π΅ΡΠΆΠΊΠΈ. Π’Π΅ΡΠ°ΠΏΠ΅Π²ΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΠ΅Π»ΠΈ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΈΡ ΡΠ΅ΡΠΏΠΈΡΠ°ΡΠΎΡΠ½ΠΎΠΉ ΠΏΠΎΠ΄Π΄Π΅ΡΠΆΠΊΠΈ Ρ Π±ΠΎΠ»ΡΠ½ΡΡ
ΡΡΠΎΠΉ ΠΊΠ°ΡΠ΅Π³ΠΎΡΠΈΠΈ ΡΡΠ΅Π±ΡΡΡ ΡΡΠΎΡΠ½Π΅Π½ΠΈΡ.Π¦Π΅Π»Ρ: Ρ ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² Ρ COVID-19 ΠΈΠ·ΡΡΠΈΡΡ Π²Π·Π°ΠΈΠΌΠΎΡΠ²ΡΠ·Ρ Π·Π½Π°ΡΠ΅Π½ΠΈΠΉ ΡΡΠ°Π½ΡΠΊΡΡΠ°Π½Π½ΠΎΠΉ ΡΠ°ΡΡΡΠ°ΡΠΈΠΈ Ρ ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»ΡΠΌΠΈ, Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΠ·ΡΡΡΠΈΠΌΠΈ ΠΎΡΡΡΡΡ Π΄ΡΡ
Π°ΡΠ΅Π»ΡΠ½ΡΡ Π½Π΅Π΄ΠΎΡΡΠ°ΡΠΎΡΠ½ΠΎΡΡΡ (ΠΠΠ), ΡΠΎΡΡΠΎΡΠ½ΠΈΠ΅ΠΌ ΠΊΠΈΡΠ»ΠΎΡΠ½ΠΎ-ΠΎΡΠ½ΠΎΠ²Π½ΠΎΠ³ΠΎ Π±Π°Π»Π°Π½ΡΠ° ΠΈ Π³Π°Π·ΠΎΠ²ΠΎΠ³ΠΎ ΡΠΎΡΡΠ°Π²Π° ΠΊΡΠΎΠ²ΠΈ.ΠΠ°ΡΠ΅ΡΠΈΠ°Π»Ρ ΠΈ ΠΌΠ΅ΡΠΎΠ΄Ρ. Π ΠΌΠ½ΠΎΠ³ΠΎΡΠ΅Π½ΡΡΠΎΠ²ΠΎΠ΅ ΠΏΡΠΎΡΠΏΠ΅ΠΊΡΠΈΠ²Π½ΠΎΠ΅ Π½Π°Π±Π»ΡΠ΄Π°ΡΠ΅Π»ΡΠ½ΠΎΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ Π²ΠΊΠ»ΡΡΠ΅Π½ΠΎ 90 ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² Ρ COVID-19, ΠΏΠΎΠ»ΡΡΠ°Π²ΡΠΈΡ
Π»Π΅ΡΠ΅Π½ΠΈΠ΅ Π² ΠΎΡΠ΄Π΅Π»Π΅Π½ΠΈΠΈ ΡΠ΅Π°Π½ΠΈΠΌΠ°ΡΠΈΠΈ ΠΈ ΠΈΠ½ΡΠ΅Π½ΡΠΈΠ²Π½ΠΎΠΉ ΡΠ΅ΡΠ°ΠΏΠΈΠΈ, Ρ ΠΊΠΎΡΠΎΡΡΡ
, Π½Π΅ΡΠΌΠΎΡΡΡ Π½Π° Π»Π΅ΡΠ΅Π½ΠΈΠ΅, Π·Π½Π°ΡΠ΅Π½ΠΈΡ ΡΡΠ°Π½ΡΠΊΡΡΠ°Π½Π½ΠΎΠΉ ΡΠ°ΡΡΡΠ°ΡΠΈΠΈ (SpO2) ΡΠΎΡΡΠ°Π²Π»ΡΠ»ΠΈ ΠΌΠ΅Π½Π΅Π΅ 93%. Π Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠΈ ΠΎΡ ΡΡΠ΅ΠΏΠ΅Π½ΠΈ Π½Π°ΡΡΡΠ΅Π½ΠΈΡ ΠΎΠΊΡΠΈΠ³Π΅Π½Π°ΡΠΈΠΈ ΠΏΠ°ΡΠΈΠ΅Π½ΡΠ°ΠΌ ΠΏΡΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΈ ΠΎΠΊΡΠΈΠ³Π΅Π½ΠΎΡΠ΅ΡΠ°ΠΏΠΈΡ ΡΠ΅ΡΠ΅Π· ΠΌΠ°ΡΠΊΡ ΠΈΠ»ΠΈ Π½ΠΎΡΠΎΠ²ΡΠ΅ ΠΊΠ°Π½ΡΠ»ΠΈ, Π²ΡΡΠΎΠΊΠΎΠΏΠΎΡΠΎΡΠ½ΡΡ ΠΎΠΊΡΠΈΠ³Π΅Π½Π°ΡΠΈΡ ΠΈΠ»ΠΈ Π½Π΅ΠΈΠ½Π²Π°Π·ΠΈΠ²Π½ΡΡ Π²Π΅Π½ΡΠΈΠ»ΡΡΠΈΡ Π»Π΅Π³ΠΊΠΈΡ
, ΠΏΡΠΈ ΡΡΠΎΠΌ Π½Π΅ Π²ΡΠ΅Π³Π΄Π° ΡΠ΄Π°Π²Π°Π»ΠΎΡΡ Π΄ΠΎΡΡΠΈΡΡ ΡΠ΅Π»Π΅Π²ΡΡ
Π·Π½Π°ΡΠ΅Π½ΠΈΠΉ ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»Π΅ΠΉ ΠΎΠΊΡΠΈΠ³Π΅Π½Π°ΡΠΈΠΈ. ΠΡΠΈ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠΈ ΠΊΠΎΡΡΠ΅ΠΊΡΠΈΠΈ ΠΠΠ ΠΏΠΎ Π²ΡΡΠ²Π»ΡΠ΅ΠΌΡΠΌ Π·Π½Π°ΡΠ΅Π½ΠΈΡΠΌ SpO2 ΠΏΠ°ΡΠΈΠ΅Π½ΡΡ ΡΠ°Π·Π΄Π΅Π»Π΅Π½Ρ Π½Π° ΡΠ»Π΅Π΄ΡΡΡΠΈΠ΅ Π³ΡΡΠΏΠΏΡ: 1-Ρ β SpO2 Π±ΠΎΠ»Π΅Π΅ 93%, 2-Ρ β SpO2 Π² Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½Π΅ 93β90%, 3-Ρ β SpO2 Π² Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½Π΅ 85β89%, 4-Ρ β SpO2 Π² Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½Π΅ 80β84%, 5-Ρ β SpO2 Π² Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½Π΅ 75β79% ΠΈ 6-Ρ β SpO2 ΠΌΠ΅Π½Π΅Π΅ 75%.Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. ΠΡΡΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ Π½Π° ΡΠΎΠ½Π΅ ΠΊΠΎΡΡΠ΅ΠΊΡΠΈΠΈ ΠΠΠ Π½Π΅ΠΈΠ½Π²Π°Π·ΠΈΠ²Π½ΡΠΌΠΈ ΠΌΠ΅ΡΠΎΠ΄Π°ΠΌΠΈ ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΠ»ΠΈΡΡ ΡΠ°Π·Π»ΠΈΡΠ½ΡΠ΅ Π·Π½Π°ΡΠ΅Π½ΠΈΡ ΡΡΠ°Π½ΡΠΊΡΡΠ°Π½Π½ΠΎΠΉ ΡΠ°ΡΡΡΠ°ΡΠΈΠΈ ΠΈ ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΡΡΡΠΈΠ΅ ΠΈΠΌ ΡΠ°Π·Π»ΠΈΡΠ½ΡΠ΅ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΡ ΠΊΠΈΡΠ»ΠΎΡΠ½ΠΎ-ΠΎΡΠ½ΠΎΠ²Π½ΠΎΠ³ΠΎ ΡΠΎΡΡΠΎΡΠ½ΠΈΡ (ΠΠΠ‘) ΠΈ Π³Π°Π·ΠΎΠ²ΠΎΠ³ΠΎ ΡΠΎΡΡΠ°Π²Π° ΠΊΡΠΎΠ²ΠΈ. ΠΡΠΈ ΡΠ½ΠΈΠΆΠ΅Π½ΠΈΠΈ Π·Π½Π°ΡΠ΅Π½ΠΈΠΉ ΡΡΠ°Π½ΡΠΊΡΡΠ°Π½Π½ΠΎΠΉ ΡΠ°ΡΡΡΠ°ΡΠΈΠΈ (SpO2) Π΄ΠΎ 85% ΠΎΡΠΌΠ΅ΡΠ°Π»ΠΈ ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΡΡΡΠ΅Π΅ ΡΠΌΠ΅ΡΠ΅Π½Π½ΠΎΠ΅ ΡΠ½ΠΈΠΆΠ΅Π½ΠΈΠ΅ PΠ°Π2 ΠΏΡΠΈ ΠΎΡΡΡΡΡΡΠ²ΠΈΠΈ ΠΌΠ΅ΡΠ°Π±ΠΎΠ»ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠΉ. ΠΠ°ΠΊ ΠΏΡΠ°Π²ΠΈΠ»ΠΎ, ΠΎΡΡΡΡΡΡΠ²ΠΎΠ²Π°Π»ΠΈ ΠΈ ΡΠ²Π½ΡΠ΅ ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΏΡΠΈΠ·Π½Π°ΠΊΠΈ Π΄ΡΡ
Π°ΡΠ΅Π»ΡΠ½ΠΎΠΉ Π½Π΅Π΄ΠΎΡΡΠ°ΡΠΎΡΠ½ΠΎΡΡΠΈ (Β«ΡΠΈΡ
Π°Ρ Π³ΠΈΠΏΠΎΠΊΡΠΈΡΒ»). Π£ ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² ΡΠΎ ΡΠ½ΠΈΠΆΠ΅Π½ΠΈΠ΅ΠΌ SpO2 Π² Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½Π΅ 80β85% ΠΎΡΠΌΠ΅ΡΠ°Π»ΠΈ ΠΏΠΎΡΠ²Π»Π΅Π½ΠΈΠ΅ ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΡΠΈΠ·Π½Π°ΠΊΠΎΠ² Π΄ΡΡ
Π°ΡΠ΅Π»ΡΠ½ΠΎΠΉ Π½Π΅Π΄ΠΎΡΡΠ°ΡΠΎΡΠ½ΠΎΡΡΠΈ (Π΄ΠΈΡΠΏΠ½ΠΎΡ, ΡΠ°Ρ
ΠΈΠΏΠ½ΠΎΡ, Π°ΠΆΠΈΡΠ°ΡΠΈΡ) ΠΈ, ΠΊΠ°ΠΊ ΠΏΡΠ°Π²ΠΈΠ»ΠΎ, ΡΠΌΠ΅ΡΠ΅Π½Π½ΠΎΠ΅ ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΠ΅ PΠ°Π‘Π2 Ρ ΡΠ°Π·Π²ΠΈΡΠΈΠ΅ΠΌ Π΄ΡΡ
Π°ΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ Π°ΡΠΈΠ΄ΠΎΠ·Π° ΠΈ ΠΊΠΎΠΌΠΏΠ΅Π½ΡΠ°ΡΠΎΡΠ½ΠΎΠ³ΠΎ ΠΌΠ΅ΡΠ°Π±ΠΎΠ»ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ Π°Π»ΠΊΠ°Π»ΠΎΠ·Π°. ΠΡΠΈ ΡΠ½ΠΈΠΆΠ΅Π½ΠΈΠΈ SpO2 Π² Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½Π΅ 75β79% Π°ΡΡΠ΅ΡΠΈΠ°Π»ΡΠ½Π°Ρ Π³ΠΈΠΏΠΎΠΊΡΠ΅ΠΌΠΈΡ, ΠΊΠ°ΠΊ ΠΏΡΠ°Π²ΠΈΠ»ΠΎ, ΡΠΎΠΏΡΠΎΠ²ΠΎΠΆΠ΄Π°Π»Π°ΡΡ ΡΠΌΠ΅ΡΠ΅Π½Π½ΠΎΠΉ Π³ΠΈΠΏΠ΅ΡΠΊΠ°ΠΏΠ½ΠΈΠ΅ΠΉ ΠΈ ΡΠ°Π·Π²ΠΈΡΠΈΠ΅ΠΌ Π΄Π΅ΠΊΠΎΠΌΠΏΠ΅Π½ΡΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ ΡΠΌΠ΅ΡΠ°Π½Π½ΠΎΠ³ΠΎ Π°ΡΠΈΠ΄ΠΎΠ·Π° ΠΈ Π²Π΅Π½ΠΎΠ·Π½ΠΎΠΉ Π΄Π΅ΡΠ°ΡΡΡΠ°ΡΠΈΠΈ, Π° ΡΠ°ΠΊΠΆΠ΅ ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΠ΅ΠΌ ΡΡΠΎΠ²Π½Ρ Π»Π°ΠΊΡΠ°ΡΠ°. ΠΡΠΈ ΡΠ½ΠΈΠΆΠ΅Π½ΠΈΠΈ ΡΡΠ°Π½ΡΠΊΡΡΠ°Π½Π½ΠΎΠΉ ΡΠ°ΡΡΡΠ°ΡΠΈΠΈ ΠΌΠ΅Π½Π΅Π΅ 74% ΡΡΠΈ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΡ Π½ΠΎΡΠΈΠ»ΠΈ Π΅ΡΠ΅ Π±ΠΎΠ»Π΅Π΅ Π²ΡΡΠ°ΠΆΠ΅Π½Π½ΡΠΉ Ρ
Π°ΡΠ°ΠΊΡΠ΅Ρ ΠΈ Π½Π°Π±Π»ΡΠ΄Π°Π»ΠΈΡΡ Ρ Π²ΡΠ΅Ρ
ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² Π΄Π°Π½Π½ΠΎΠΉ Π³ΡΡΠΏΠΏΡ.ΠΠ°ΠΊΠ»ΡΡΠ΅Π½ΠΈΠ΅. ΠΡΡΠ²Π»Π΅Π½Π½ΡΠ΅ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΡ Π² ΡΠ΅Π»ΠΎΠΌ ΡΠΎΠ³Π»Π°ΡΡΡΡΡΡ Ρ ΠΎΠ±ΡΠ΅ΠΏΡΠΈΠ½ΡΡΡΠΌΠΈ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ΠΈΡΠΌΠΈ ΠΎ Π²Π·Π°ΠΈΠΌΠΎΡΠ²ΡΠ·ΠΈ Π·Π½Π°ΡΠ΅Π½ΠΈΠΉ ΡΡΠ°Π½ΡΠΊΡΡΠ°Π½Π½ΠΎΠΉ ΡΠ°ΡΡΡΠ°ΡΠΈΠΈ Ρ Π³Π°Π·ΠΎΠ²ΡΠΌ ΡΠΎΡΡΠ°Π²ΠΎΠΌ ΠΈ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠ°ΠΌΠΈ ΠΠΠ‘ ΠΊΡΠΎΠ²ΠΈ ΠΏΡΠΈ ΠΠΠ. Π‘Π½ΠΈΠΆΠ΅Π½ΠΈΠ΅ Π·Π½Π°ΡΠ΅Π½ΠΈΠΉ ΡΡΠ°Π½ΡΠΊΡΡΠ°Π½Π½ΠΎΠΉ ΡΠ°ΡΡΡΠ°ΡΠΈΠΈ Π΄ΠΎ ΡΡΠΎΠ²Π½Ρ 85%, Π½Π΅ ΡΠΎΠΏΡΠΎΠ²ΠΎΠΆΠ΄Π°ΡΡΠ΅Π΅ΡΡ ΠΏΠΎΡΠ²Π»Π΅Π½ΠΈΠ΅ΠΌ Π²ΡΡΠ°ΠΆΠ΅Π½Π½ΡΡ
ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΡΠΈΠ·Π½Π°ΠΊΠΎΠ² Π΄ΡΡ
Π°ΡΠ΅Π»ΡΠ½ΠΎΠΉ Π½Π΅Π΄ΠΎΡΡΠ°ΡΠΎΡΠ½ΠΎΡΡΠΈ (Π΄ΠΈΡΠΏΠ½ΠΎΡ, ΡΠ°Ρ
ΠΈΠΏΠ½ΠΎΡ, Π²ΠΎΠ·Π±ΡΠΆΠ΄Π΅Π½ΠΈΠ΅), ΡΠ°Π·Π²ΠΈΡΠΈΠ΅ΠΌ Π°ΡΠΈΠ΄ΠΎΠ·Π° ΠΈ Π²Π΅Π½ΠΎΠ·Π½ΠΎΠΉ Π΄Π΅ΡΠ°ΡΡΡΠ°ΡΠΈΠΈ, ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΠ΅ΠΌ ΡΡΠΎΠ²Π½Π΅ΠΌ Π»Π°ΠΊΡΠ°ΡΠ°, ΠΏΠΎ-Π²ΠΈΠ΄ΠΈΠΌΠΎΠΌΡ, ΠΌΠΎΠΆΠ΅Ρ ΡΠ°ΡΡΠ΅Π½ΠΈΠ²Π°ΡΡΡΡ ΠΊΠ°ΠΊ ΠΎΡΠ½ΠΎΡΠΈΡΠ΅Π»ΡΠ½ΠΎ Π±Π΅Π·ΠΎΠΏΠ°ΡΠ½ΠΎΠ΅
Study of the diffusion of hydrogen in materials by the method of elastic scattering of fast neutrons
Investigation of the two-phase diffusion zone in the D-Pd system by the recoil nucleus method
Elastic alpha-particle resonances as evidence of clustering at high excitation in
The elastic-scattering reaction 36Ar + Ξ± was studied using the Thick Target Inverse Kinematics technique. Data were taken at a beam energy of 150 MeV in a reaction chamber filled with 4He gas, corresponding to the excitation region of 12β20 MeV in 40Ca. Using a simplified R -matrix method of analysis energies, widths and spin assignments were obtained for 137 resonances. The structure is discussed within the concept of Ξ±-cluster structure in the quasi-continuum of 40Ca and is compared to other nuclei in the same mass region
Highly excited alpha-cluster states in
Excitation functions of elastic 28Si + scattering were measured employing the relatively new thick-target inverse kinematics technique, confirming the usefulness of the method. Data were taken at a 28Si beam energy of 150MeV in a reaction chamber filled with 4He gas, corresponding to the excitation region of 10-24MeV in 32S . Results are compared to earlier studies, in order to validate the method and explore its limitations. The data were treated in the framework of a simplified R -matrix approach. Energies, widths and spin assignments were obtained for 129 resonances in this mid-shell nucleus. The structure is discussed within the concept of -cluster structure in the quasi-continuum of 32S