428 research outputs found
The Cyclone meteor radar system for routine wind measurements in the lower thermosphere
A new meteor wind radar system called Cyclone was devised to extend and update the meteor radar network and for unattended operation. The Cyclone meteor radar system obtains information from four directions simultaneously. To automate data processing a special digital device was developed. An algorithm used to determine the Doppler shifts was adopted, which makes it possible to eliminate selectivity with respect to slow velocity meteor drifts. The operation of the Cyclone system is described
Sepsis at victims with a polytrauma
ΠΠΈΠ²ΡΠ΅Π½ΠΎ ΠΏΠ΅ΡΠ΅Π±ΡΠ³ ΡΡΠ°Π²ΠΌΠ°ΡΠΈΡΠ½ΠΎΡ Ρ
Π²ΠΎΡΠΎΠ±ΠΈ (Π’Π₯) Ρ 450 ΠΏΠΎΡΠ΅ΡΠΏΡΠ»ΠΈΡ
Π²ΡΠΊΠΎΠΌ Π²ΡΠ΄ 16 Π΄ΠΎ 85 ΡΠΎΠΊΡΠ², Π· Π½ΠΈΡ
360 β ΡΠΎΠ»ΠΎΠ²ΡΠΊΠΈ, Π· ΠΏΠΎΠ»ΡΡΡΠ°Π²ΠΌΠΎΡ (ΠΠ’). ΠΠ½ΡΠΉΠ½ΠΎ-ΡΠ΅ΠΏΡΠΈΡΠ½Ρ ΡΡΠΊΠ»Π°Π΄Π½Π΅Π½Π½Ρ Π²ΠΈΠ½ΠΈΠΊΠ»ΠΈ Π² 18,7%, ΡΠ΅ΠΏΡΠΈΡ Π΄ΡΠ°Π³Π½ΠΎΡΡΠΎΠ²Π°Π½ΠΎ Π² 6,2% Π· Π½ΠΈΡ
. Π Π°Π½Π½Ρ ΠΎΡΠ³Π°Π½Π½Ρ Ρ ΠΏΠΎΠ»ΡΠΎΡΠ³Π°Π½Π½Π° Π΄ΠΈΡΡΡΠ½ΠΊΡΡΡ Ρ ΠΏΠ°ΡΡΡΠ½ΡΡΠ² Π· ΡΠ΅ΠΏΡΠΈΡΠΎΠΌ Π²ΠΈΠ½ΠΈΠΊΠ»ΠΈ Π² 78,6% ΡΠΏΠΎΡΡΠ΅ΡΠ΅ΠΆΠ΅Π½Ρ, ΡΠΈΠ½Π΄ΡΠΎΠΌ ΡΠΈΡΡΠ΅ΠΌΠ½ΠΎΡ Π·Π°ΠΏΠ°Π»ΡΠ½ΠΎΡ ΡΠ΅Π°ΠΊΡΡΡ (Π‘Π‘ΠΠ ) Π±ΡΠ² Ρ ΡΡΡΡΠΊΡΡΡΡ ΠΊΠ»ΡΠ½ΡΡΠ½ΠΈΡ
ΠΎΠ·Π½Π°ΠΊ Π΄ΠΎΠΌΡΠ½ΡΡΡΠΈΠΌ Ρ ΡΡΠΈΠ²Π°Π»ΠΈΠΌ ΠΏΡΠΎΡΡΠ³ΠΎΠΌ Π²ΡΡΠΎΠ³ΠΎ Π³ΠΎΡΡΡΠΎΠ³ΠΎ ΠΏΠ΅ΡΡΠΎΠ΄Ρ Π’Π₯. Π‘ΡΠ°Π½ ΡΠΌΡΠ½ΠΎΡΠ΅Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ Ρ ΠΏΠ°ΡΡΡΠ½ΡΡΠ² Π· ΡΠ΅ΠΏΡΠΈΡΠΎΠΌ ΠΏΡΠΈ ΠΠ’ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΠ·ΡΠ²Π°Π²ΡΡ Π³ΡΠΏΠ΅ΡΠ΄ΠΈΠ½Π°ΠΌΡΡΠ½ΠΈΠΌ Π‘Π‘ΠΠ , Π· Π½Π°ΡΡΡΠΏΠ½ΠΈΠΌ Π²ΡΠΎΡΠΈΠ½Π½ΠΈΠΌ ΡΠΌΡΠ½ΠΎΠ΄Π΅ΡΡΡΠΈΡΠΎΠΌ. Π ΠΎΠ·Π²ΠΈΡΠΎΠΊ ΡΠ΅ΠΏΡΠΈΡΡ ΠΏΡΠΈ ΠΠ’ ΡΠ½ΡΡΡΡΡ Π΄ΡΡΠ³Ρ Ρ
Π²ΠΈΠ»Ρ ΡΠΈΠ½Π΄ΡΠΎΠΌΡ ΠΏΠΎΠ»ΡΠΎΡΠ³Π°Π½Π½ΠΎΡ Π΄ΠΈΡΡΡΠ½ΠΊΡΡΡ (Π‘ΠΠΠ), ΡΠΊΠΈΠΉ Ρ ΡΠ°ΡΠ°Π»ΡΠ½ΠΈΠΌ Ρ Π²ΠΈΠ·Π½Π°ΡΠ°Ρ Π²ΠΊΡΠ°ΠΉ Π²ΠΈΡΠΎΠΊΡ Π»Π΅ΡΠ°Π»ΡΠ½ΡΡΡΡ, ΡΠΊΠ° ΡΠΊΠ»Π°Π»Π° Π² ΡΡΡΡ ΠΊΠ°ΡΠ΅Π³ΠΎΡΡΡ ΠΏΠ°ΡΡΡΠ½ΡΡΠ² 60,7%; Current of traumatic illness at 450 victims with a polytrauma of the age from 16 till 85, from which 360 are men, is investigated. Purulent - septic complications have arisen in 18,7 %, the sepsis is diagnosed in 6,2 % of them. Early organs and multiple organs' dysfunctions at patients with a sepsis have arisen in 78,6 % of supervisions, the syndrome of system inflammatory reaction was dominant and long in the structure of clinical attributes during all sharp period of traumatic illness. A condition of immunoreactiveness at patients with a sepsis at a polytrauma was characterized by hyperdynamic system inflammatory reaction, with the subsequent secondary immunodeficit. Development of a sepsis at a polytrauma initiates the second wave of a syndrome multiple organs' dysfunctions which is fatal and defines the highest level of mortality which made at this category of patients 60,7 %
ΠΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ ΡΠ΅ΡΠ°ΠΏΠΈΠΈ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ Π²ΠΈΡΡΡΠ°Π»ΡΠ½ΠΎΠΉ ΡΠ΅Π°Π»ΡΠ½ΠΎΡΡΠΈ Ρ ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² ΠΏΠΎΡΠ»Π΅ ΡΡΠ°Π²ΠΌΠ°ΡΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ Ρ ΠΈΡΡΡΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ Π²ΠΌΠ΅ΡΠ°ΡΠ΅Π»ΡΡΡΠ²: ΠΏΡΠΎΡΠΏΠ΅ΠΊΡΠΈΠ²Π½ΠΎΠ΅ ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΎΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅
ΠΠΠ’Π£ΠΠΠ¬ΠΠΠ‘Π’Π¬: ΠΠΎΡΠ»Π΅ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΎΠ½Π½Π°Ρ Π±ΠΎΠ»Ρ ΡΠ²Π»ΡΠ΅ΡΡΡ ΡΠ°ΡΠΏΡΠΎΡΡΡΠ°Π½Π΅Π½Π½ΠΎΠΉ ΠΏΡΠΎΠ±Π»Π΅ΠΌΠΎΠΉ. ΠΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ Π½Π΅ΠΌΠ΅Π΄ΠΈΠΊΠ°ΠΌΠ΅Π½ΡΠΎΠ·Π½ΡΡ
ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ² Π»Π΅ΡΠ΅Π½ΠΈΡ ΠΌΠΎΠΆΠ΅Ρ ΡΠ½ΠΈΠ·ΠΈΡΡ ΠΏΠΎΡΡΠ΅Π±Π½ΠΎΡΡΡ Π² Π»Π΅ΠΊΠ°ΡΡΡΠ²Π΅Π½Π½ΡΡ
ΠΏΡΠ΅ΠΏΠ°ΡΠ°ΡΠ°Ρ
. ΠΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ ΡΠ΅ΡΠ°ΠΏΠΈΠΈ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ Π²ΠΈΡΡΡΠ°Π»ΡΠ½ΠΎΠΉ ΡΠ΅Π°Π»ΡΠ½ΠΎΡΡΠΈ (ΠΠ -ΡΠ΅ΡΠ°ΠΏΠΈΡ) ΡΠΈΡΠΎΠΊΠΎ ΠΈΠ·ΡΡΠ°Π΅ΡΡΡ ΠΊΠ°ΠΊ ΠΌΠ΅ΡΠΎΠ΄ Π΄ΠΎΠΏΠΎΠ»Π½ΠΈΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ Π»Π΅ΡΠ΅Π½ΠΈΡ ΠΏΡΠΈ ΠΎΡΡΡΠΎΠΉ ΠΈ Ρ
ΡΠΎΠ½ΠΈΡΠ΅ΡΠΊΠΎΠΉ Π±ΠΎΠ»ΠΈ. ΠΡΡΡΡΡΡΠ²ΠΈΠ΅ Π΄Π°Π½Π½ΡΡ
ΠΎΠ± ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠΈ Ρ ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² ΠΏΠΎΡΠ»Π΅ ΡΡΠ°Π²ΠΌΠ°ΡΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
Ρ
ΠΈΡΡΡΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
Π²ΠΌΠ΅ΡΠ°ΡΠ΅Π»ΡΡΡΠ² ΡΡΠ°Π»ΠΎ ΠΎΡΠ½ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ Π΄Π»Ρ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΈΡ Π΄Π°Π½Π½ΠΎΠ³ΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ. Π¦ΠΠΠ¬ ΠΠ‘Π‘ΠΠΠΠΠΠΠΠΠ―: ΠΠΏΡΠ΅Π΄Π΅Π»ΠΈΡΡ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ ΠΠ -ΡΠ΅ΡΠ°ΠΏΠΈΠΈ ΠΊΠ°ΠΊ ΠΌΠ΅ΡΠΎΠ΄Π° Π΄ΠΎΠΏΠΎΠ»Π½ΠΈΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ Π»Π΅ΡΠ΅Π½ΠΈΡ ΠΏΠΎΡΠ»Π΅ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΎΠ½Π½ΠΎΠΉ Π±ΠΎΠ»ΠΈ Ρ ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² ΠΏΠΎΡΠ»Π΅ ΡΡΠ°Π²ΠΌΠ°ΡΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
Ρ
ΠΈΡΡΡΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
Π²ΠΌΠ΅ΡΠ°ΡΠ΅Π»ΡΡΡΠ². ΠΠΠ’ΠΠ ΠΠΠΠ« Π ΠΠΠ’ΠΠΠ«: Π ΠΏΡΠΎΡΠΏΠ΅ΠΊΡΠΈΠ²Π½ΠΎΠ΅ ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΎΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ Π²ΠΊΠ»ΡΡΠ΅Π½Ρ 70Β ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ², ΠΏΠΎΡΡΡΠΏΠΈΠ²ΡΠΈΡ
Π΄Π»Ρ Π²ΡΠΏΠΎΠ»Π½Π΅Π½ΠΈΡ ΠΏΠ»Π°Π½ΠΎΠ²ΡΡ
ΡΡΠ°Π²ΠΌΠ°ΡΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΉ. ΠΠ -ΡΠ΅ΡΠ°ΠΏΠΈΡ Π² ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ΅ Ρ ΠΌΠ΅Π΄ΠΈΠΊΠ°ΠΌΠ΅Π½ΡΠΎΠ·Π½ΡΠΌΠΈ Π°Π½Π°Π»ΡΠ³Π΅ΡΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ ΠΏΡΠ΅ΠΏΠ°ΡΠ°ΡΠ°ΠΌΠΈ ΠΏΡΠΈΠΌΠ΅Π½ΠΈΠ»ΠΈ 35Β ΠΏΠ°ΡΠΈΠ΅Π½ΡΠ°ΠΌ. Π ΠΊΠΎΠ½ΡΡΠΎΠ»ΡΠ½ΡΡ Π³ΡΡΠΏΠΏΡ Π²ΠΊΠ»ΡΡΠ΅Π½ΠΎ 35 ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ², ΠΊΠΎΡΠΎΡΡΠΌ ΠΏΠΎΡΠ»Π΅ Π²ΡΠΏΠΎΠ»Π½Π΅Π½ΠΈΡ Π°Π½Π°Π»ΠΎΠ³ΠΈΡΠ½ΡΡ
Ρ
ΠΈΡΡΡΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
Π²ΠΌΠ΅ΡΠ°ΡΠ΅Π»ΡΡΡΠ² ΠΎΠ±Π΅Π·Π±ΠΎΠ»ΠΈΠ²Π°Π½ΠΈΠ΅ ΠΎΡΡΡΠ΅ΡΡΠ²Π»ΡΠ»ΠΈ ΡΠΎΠ»ΡΠΊΠΎ ΠΌΠ΅Π΄ΠΈΠΊΠ°ΠΌΠ΅Π½ΡΠΎΠ·Π½ΠΎ. Π’Π΅ΡΠ°ΠΏΠΈΡ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΠ ΠΏΡΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΈ Ρ ΠΏΠΎΠΌΠΎΡΡΡ ΡΡΡΡΠΎΠΉΡΡΠ²Π° Β«Oculus QuestΒ 2Β». Π‘Π΅Π°Π½ΡΡ ΠΏΠΎ 25Β ΠΌΠΈΠ½ Π²ΡΠΏΠΎΠ»Π½ΡΠ»ΠΈ ΡΠ΅ΡΠ΅Π· 3, 7, 12Β Ρ ΠΏΠΎΡΠ»Π΅ ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΈ. ΠΡΠ΅Π½ΠΊΡ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ ΠΏΡΠΎΡΠΈΠ²ΠΎΠ±ΠΎΠ»Π΅Π²ΠΎΠΉ ΡΠ΅ΡΠ°ΠΏΠΈΠΈ ΠΎΡΡΡΠ΅ΡΡΠ²Π»ΡΠ»ΠΈ Ρ ΠΏΠΎΠΌΠΎΡΡΡ ΡΠΈΡΠ»ΠΎΠ²ΠΎΠΉ ΡΠ΅ΠΉΡΠΈΠ½Π³ΠΎΠ²ΠΎΠΉ ΡΠΊΠ°Π»Ρ. Π Π΅Π°ΠΊΡΠΈΡ ΡΠ½Π΄ΠΎΠΊΡΠΈΠ½Π½ΠΎ-ΠΌΠ΅ΡΠ°Π±ΠΎΠ»ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΎΡΠ²Π΅ΡΠ° Π½Π° Π±ΠΎΠ»Ρ ΠΎΡΠ΅Π½ΠΈΠ²Π°Π»ΠΈ ΠΏΠΎ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΡ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΈ ΠΊΠΎΡΡΠΈΠ·ΠΎΠ»Π° ΠΈ Π°Π΄ΡΠ΅Π½ΠΎΠΊΠΎΡΡΠΈΠΊΠΎΡΡΠΎΠΏΠ½ΠΎΠ³ΠΎ Π³ΠΎΡΠΌΠΎΠ½Π° (ΠΠΠ’Π). Π ΠΠΠ£ΠΠ¬Π’ΠΠ’Π«: Π’Π΅ΡΠ°ΠΏΠΈΡ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΌΠ΅Π΄ΠΈΠΊΠ°ΠΌΠ΅Π½ΡΠΎΠ·Π½ΠΎΠΉ Π°Π½Π°Π»ΡΠ³Π΅Π·ΠΈΠΈ Π² ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ΅ Ρ ΡΠ΅Π°Π½ΡΠ°ΠΌΠΈ ΠΠ ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΠ»Π° ΠΊ Π»ΡΡΡΠ΅ΠΌΡ ΠΊΠ°ΡΠ΅ΡΡΠ²Ρ ΠΎΠ±Π΅Π·Π±ΠΎΠ»ΠΈΠ²Π°Π½ΠΈΡ ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² ΠΏΠΎΡΠ»Π΅ ΡΡΠ°Π²ΠΌΠ°ΡΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΉ. ΠΠΎΡΠ»Π΅ ΡΠ΅Π°Π½ΡΠ° ΠΠ -ΡΠ΅ΡΠ°ΠΏΠΈΠΈ ΡΠ½ΠΈΠΆΠ΅Π½ΠΈΠ΅ ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»Π΅ΠΉ ΠΏΠΎ ΡΠΊΠ°Π»Π΅ ΡΠ°ΠΌΠΎΠΎΡΠ΅Π½ΠΊΠΈ Π±ΠΎΠ»ΠΈ ΡΠΎΡΡΠ°Π²ΠΈΠ»ΠΎ 44Β %. ΠΡΠΈ ΡΡΠ°Π²Π½Π΅Π½ΠΈΠΈ Ρ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ°ΠΌΠΈ, ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΠΌΠΈ Π½Π° ΡΠ»Π΅Π΄ΡΡΡΠΈΠΉ Π΄Π΅Π½Ρ, Π·Π½Π°ΡΠ΅Π½ΠΈΡ Π² ΠΎΡΠ½ΠΎΠ²Π½ΠΎΠΉ Π³ΡΡΠΏΠΏΠ΅ Π±ΡΠ»ΠΈ Π½ΠΈΠΆΠ΅ Π½Π° 22Β %. ΠΠΎΡΡΠΎΠ²Π΅ΡΠ½ΠΎ ΡΠ½ΠΈΠ·ΠΈΠ»Π°ΡΡ ΠΏΠΎΡΡΠ΅Π±Π½ΠΎΡΡΡ ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² ΠΎΡΠ½ΠΎΠ²Π½ΠΎΠΉ Π³ΡΡΠΏΠΏΡ Π² Π½Π°ΡΠΊΠΎΡΠΈΡΠ΅ΡΠΊΠΈΡ
Π°Π½Π°Π»ΡΠ³Π΅ΡΠΈΠΊΠ°Ρ
. ΠΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΈ ΠΠΠ’Π ΠΊΠ°ΠΊ ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»Ρ ΡΠ½Π΄ΠΎΠΊΡΠΈΠ½Π½ΠΎ-ΠΌΠ΅ΡΠ°Π±ΠΎΠ»ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΎΡΠ²Π΅ΡΠ° Π² Π³ΡΡΠΏΠΏΠ΅ Ρ ΠΠ -ΡΠ΅ΡΠ°ΠΏΠΈΠ΅ΠΉ Π±ΡΠ»ΠΎ Π½Π° 18Β % ΠΌΠ΅Π½Π΅Π΅ Π²ΡΡΠ°ΠΆΠ΅Π½ΠΎ. ΠΠ«ΠΠΠΠ«: ΠΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ ΠΠ -ΡΠ΅ΡΠ°ΠΏΠΈΠΈ ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΡ ΠΊ ΡΠΌΠ΅Π½ΡΡΠ΅Π½ΠΈΡ ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»Π΅ΠΉ ΠΏΠΎΡΠ»Π΅ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΎΠ½Π½ΠΎΠΉ Π±ΠΎΠ»ΠΈ, ΡΠ½Π΄ΠΎΠΊΡΠΈΠ½Π½ΠΎ-ΠΌΠ΅ΡΠ°Π±ΠΎΠ»ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΎΡΠ²Π΅ΡΠ° ΠΈ ΠΏΠΎΡΡΠ΅Π±Π½ΠΎΡΡΠΈ Π² ΠΎΠΏΠΈΠΎΠΈΠ΄Π½ΡΡ
Π°Π½Π°Π»ΡΠ³Π΅ΡΠΈΠΊΠ°Ρ
Identification of species of the genus Acer L. using vegetation indices calculated from the hyperspectral images of leaves
Selection of the most suitable spectral vegetation indices which are applicable to the remote sensing of the forest species composition and status, is an important task aimed at the evaluation of the large-scale plant communities. There are 80 vegetation indices have been collected in the present work using the hyperspectral data, including that for the Acer platanoides L., A. saccharinum L. and A. pseudoplatanus
High precision beam momentum determination in a synchrotron using a spin resonance method
In order to measure the mass of the eta meson with high accuracy using the
d+p -> 3He+eta reaction, the momentum of the circulating deuteron beam in the
Cooler Synchrotron COSY of the Forschungszentrum Juelich has to be determined
with unprecedented precision. This has been achieved by studying the spin
dynamics of the polarized deuteron beam. By depolarizing the beam through the
use of an artificially induced spin resonance, it was possible to evaluate its
momentum p with a precision of dp/p < 10-4 for a momentum of roughly 3 GeV/c.
Different possible sources of error in the application of the spin resonance
method are discussed in detail and its possible use during a standard
experiment is considered.Comment: 10 pages, 6 figures, 2 tables, published versio
Discovering study-specific gene regulatory networks
This article has been made available through the Brunel Open Access Publishing Fund.Microarrays are commonly used in biology because of their ability to simultaneously measure thousands of genes under different conditions. Due to their structure, typically containing a high amount of variables but far fewer samples, scalable network analysis techniques are often employed. In particular, consensus approaches have been recently used that combine multiple microarray studies in order to find networks that are more robust. The purpose of this paper, however, is to combine multiple microarray studies to automatically identify subnetworks that are distinctive to specific experimental conditions rather than common to them all. To better understand key regulatory mechanisms and how they change under different conditions, we derive unique networks from multiple independent networks built using glasso which goes beyond standard correlations. This involves calculating cluster prediction accuracies to detect the most predictive genes for a specific set of conditions. We differentiate between accuracies calculated using cross-validation within a selected cluster of studies (the intra prediction accuracy) and those calculated on a set of independent studies belonging to different study clusters (inter prediction accuracy). Finally, we compare our method's results to related state-of-the art techniques. We explore how the proposed pipeline performs on both synthetic data and real data (wheat and Fusarium). Our results show that subnetworks can be identified reliably that are specific to subsets of studies and that these networks reflect key mechanisms that are fundamental to the experimental conditions in each of those subsets
Investigation of oxidation process of mechanically activated ultrafine iron powders
The oxidation of mechanically activated ultrafine iron powders was studied using X-ray powder diffraction and thermogravimetric analyzes. The powders with average particles size of 100 nm were made by the electric explosion of wire, and were subjected to mechanical activation in planetary ball mill for 15 and 40 minutes. It was shown that a certain amount of FeO phase is formed during mechanical activation of ultrafine iron powders. According to thermogravimetric analysis, the oxidation process of non-milled ultrafine iron powders is a complex process and occurs in three stages. The preliminary mechanical activation of powders considerably changes the nature of the iron powders oxidation, leads to increasing in the temperature of oxidation onset and shifts the reaction to higher temperatures. For the milled powders, the oxidation is more simple process and occurs in a single step
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