20 research outputs found
Π‘ΠΈΠ½ΡΠ΅Π· ΠΏΠΎΡ ΡΠ΄Π½ΠΈΡ 4-ΡΡΠ°Π·ΠΎΠ»ΡΠ΄ΠΈΠ½ΠΎΠ½Ρ Π· Π²ΠΈΠΊΠΎΡΠΈΡΡΠ°Π½Π½ΡΠΌ 2-(4-R-2-ΡΠΎΡΠΌΡΠ»ΡΠ΅Π½ΠΎΠΊΡΠΈ)-N-(Rβ-ΡΠ΅Π½ΡΠ»)Π°ΡΠ΅ΡΠ°ΠΌΡΠ΄ΡΠ² ΡΠ° ΡΡ ΠΏΡΠΎΡΠΈΠ·Π°ΠΏΠ°Π»ΡΠ½Π° Π°ΠΊΡΠΈΠ²Π½ΡΡΡΡ
The research is devoted to the rational design of new non-steroidal anti-inflammatory drugs (NSAIDs) using the 4-thiazolidinoneΒ βcoreβ. A series of 2-(4-R-2-formylphenoxy)-N-(Rβ-phenyl)acetamides has been synthesized from salicylicΒ aldehydes for structural modifications of basic heterocycles. The aldehydes obtained are active carbonyl agents andΒ suitable βbuilding blocksβ for the focused synthesis of biologically active compounds. Ylidene derivatives of 2-thioxo-4-thiazolidinone and 2-(4-hydroxyphenyl)imino-4-thiazolidone have been synthesized in the Knoevenagel reactionΒ conditions. The one-pot reaction between 3(5)-merkapto-1,2,4-triazoles, chloroacetic acid and the salicylic aldehydeΒ derivatives synthesized have been used for the synthesis of 5-ylidene-thiazolo[3,2-b][1,2,4]triazol-6-one. ParametersΒ of acute toxicity and the anti-exudative activity (carrageenin paw edema test) have been studied for the ylidene derivativesΒ synthesized. It has been found that all compounds synthesized demonstrate the anti-exudative activity, andΒ some βstructure β acute toxicity β anti-exudative activityβ relationships have been analyzed. Based on the results ofΒ in vivo studies the lead compound β 4-{2-[4-chloro-2-(6-oxothiazolo[3,2-b][1,2,4]triazole-5-ylidenemethyl)-phenoxy]-Β acetylamino}-benzoic acid ethyl ester that demonstrates the anti-exudative activity equivalent to the classic NSAIDΒ Diclofenac has been identified, it has a low level of toxicity and can be recommended for the profound study.ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΏΠΎΡΠ²ΡΡΠ΅Π½ΠΎ ΡΠ°ΡΠΈΠΎΠ½Π°Π»ΡΠ½ΠΎΠΌΡ Π΄ΠΈΠ·Π°ΠΉΠ½Ρ Π½ΠΎΠ²ΡΡ
Π½Π΅ΡΡΠ΅ΡΠΎΠΈΠ΄Π½ΡΡ
ΠΏΡΠΎΡΠΈΠ²ΠΎΠ²ΠΎΡΠΏΠ°Π»ΠΈΡΠ΅Π»ΡΠ½ΡΡ
ΡΡΠ΅Π΄ΡΡΠ²Β (ΠΠΠΠ‘) Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ 4-ΡΠΈΠ°Π·ΠΎΠ»ΠΈΠ΄ΠΈΠ½ΠΎΠ½ΠΎΠ²ΠΎΠ³ΠΎ Β«ΠΊΠ°ΡΠΊΠ°ΡΠ°Β». ΠΠ»Ρ ΡΡΡΡΠΊΡΡΡΠ½ΠΎΠΉ ΠΌΠΎΠ΄ΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ ΡΠ΅Π»Π΅Π²ΠΎΠ³ΠΎ Π³Π΅ΡΠ΅ΡΠΎΡΠΈΠΊΠ»Π° ΠΈΡΡ
ΠΎΠ΄Ρ ΠΈΠ· ΡΠ°Π»ΠΈΡΠΈΠ»ΠΎΠ²ΡΡ
Π°Π»ΡΠ΄Π΅Π³ΠΈΠ΄ΠΎΠ² ΡΠΈΠ½ΡΠ΅Π·ΠΈΡΠΎΠ²Π°Π½ ΡΡΠ΄ 2-(4-R-2-ΡΠΎΡΠΌΠΈΠ»ΡΠ΅Π½ΠΎΠΊΡΠΈ)-N-(Rβ-ΡΠ΅Π½ΠΈΠ»)Π°ΡΠ΅ΡΠ°ΠΌΠΈΠ΄ΠΎΠ², ΠΊΠΎΡΠΎΡΡΠ΅ ΡΠ²Π»ΡΡΡΡΡ Π°ΠΊΡΠΈΠ²Π½ΡΠΌΠΈ ΠΊΠ°ΡΠ±ΠΎΠ½ΠΈΠ»ΡΠ½ΡΠΌΠΈ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΡΠΌΠΈ ΠΈ ΡΠ΄ΠΎΠ±Π½ΡΠΌΠΈ Β«building blocksΒ» Π΄Π»ΡΒ Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½Π½ΠΎΠ³ΠΎ ΡΠΈΠ½ΡΠ΅Π·Π° Π±ΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈ Π°ΠΊΡΠΈΠ²Π½ΡΡ
ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΉ. Π ΡΡΠ»ΠΎΠ²ΠΈΡΡ
ΡΠ΅Π°ΠΊΡΠΈΠΈ ΠΠ½ΡΠ²Π΅Π½Π°Π³Π΅Π»Ρ Ρ 2-ΡΠΈΠΎΠΊΡΠΎ-4-ΡΠΈΠ°Π·ΠΎΠ»ΠΈΠ΄ΠΈΠ½ΠΎΠ½ΠΎΠΌ, 2-(4-Π³ΠΈΠ΄ΡΠΎΠΊΡΠΈΡΠ΅Π½ΠΈΠ»)ΠΈΠΌΠΈΠ½ΠΎ-4-ΡΠΈΠ°Π·ΠΎΠ»ΠΈΠ΄ΠΈΠ½ΠΎΠ½ΠΎΠΌ, Π° ΡΠ°ΠΊΠΆΠ΅ ΠΏΡΠΈ ΠΎΠ΄Π½ΠΎΡΠ΅Π°ΠΊΡΠΎΡΠ½ΠΎΠΌ Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΠΈ 3(5)-ΠΌΠ΅ΡΠΊΠ°ΠΏΡΠΎ-1,2,4-ΡΡΠΈΠ°Π·ΠΎΠ»Π°, ΠΌΠΎΠ½ΠΎΡ
Π»ΠΎΡΡΠΊΡΡΡΠ½ΠΎΠΉ ΠΊΠΈΡΠ»ΠΎΡΡ ΠΈ ΡΠΈΠ½ΡΠ΅Π·ΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄Π½ΡΡ
ΡΠ°Π»ΠΈΡΠΈΠ»ΠΎΠ²ΡΡ
Π°Π»ΡΠ΄Π΅Π³ΠΈΠ΄ΠΎΠ² ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΎ Π³ΡΡΠΏΠΏΡ ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΡΡΡΠΈΡ
ΠΈΠ»ΠΈΠ΄Π΅Π½ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄Π½ΡΡ
. ΠΠ»Ρ ΡΠΈΠ½ΡΠ΅Π·ΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
Β ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΉ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½Ρ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² ΠΎΡΡΡΠΎΠΉ ΡΠΎΠΊΡΠΈΡΠ½ΠΎΡΡΠΈ ΠΈ Π°Π½ΡΠΈΡΠΊΡΡΡΠ΄Π°ΡΠΈΠ²Π½ΠΎΠΉ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΠΊΠ°ΡΡΠ°Π³Π΅Π½ΠΈΠ½ΠΎΠ²ΠΎΠΉ ΠΌΠΎΠ΄Π΅Π»ΠΈ Π²ΠΎΡΠΏΠ°Π»ΠΈΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ ΠΏΡΠΎΡΠ΅ΡΡΠ°. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ Π²ΡΠ΅ ΡΠΈΠ½ΡΠ΅Π·ΠΈΡΠΎΠ²Π°Π½Π½ΡΠ΅ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΡ Π΄Π΅ΠΌΠΎΠ½ΡΡΡΠΈΡΡΡΡ ΠΏΡΠΎΡΠΈΠ²ΠΎΠ²ΠΎΡΠΏΠ°Π»ΠΈΡΠ΅Π»ΡΠ½ΠΎΠ΅ Π΄Π΅ΠΉΡΡΠ²ΠΈΠ΅ ΠΈ ΠΏΡΠΎΠ°Π½Π°Π»ΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Ρ Π½Π΅ΠΊΠΎΡΠΎΡΡΠ΅ Π·Π°ΠΊΠΎΠ½ΠΎΠΌΠ΅ΡΠ½ΠΎΡΡΠΈ Β«ΡΡΡΡΠΊΡΡΡΠ° β ΠΎΡΡΡΠ°Ρ ΡΠΎΠΊΡΠΈΡΠ½ΠΎΡΡΡ β Π°Π½ΡΠΈΡΠΊΡΡΡΠ΄Π°ΡΠΈΠ²Π½Π°Ρ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΡΒ». ΠΠΎ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ°ΠΌ in vivo ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ ΠΈΠ΄Π΅Π½ΡΠΈΡΠΈΡΠΈΡΠΎΠ²Π°Π½ΠΎ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠ΅ β Π»ΠΈΠ΄Π΅Ρ: ΡΡΠΈΠ»ΠΎΠ²ΡΠΉ ΡΡΠΈΡ 4-{2-[4-Ρ
Π»ΠΎΡ-2-(6-ΠΎΠΊΡΠΎΡΠΈΠ°Π·ΠΎΠ»ΠΎ[3,2-b][1,2,4]ΡΡΠΈΠ°Π·ΠΎΠ»-5-ΠΈΠ»ΠΈΠ΄Π΅Π½ΠΌΠ΅ΡΠΈΠ»)-ΡΠ΅Π½ΠΎΠΊΡΠΈ]-Π°ΡΠ΅ΡΠΈΠ»Π°ΠΌΠΈΠ½ΠΎ}-Π±Π΅Π½Π·ΠΎΠΉΠ½ΠΎΠΉ ΠΊΠΈΡΠ»ΠΎΡΡ, ΠΊΠΎΡΠΎΡΠΎΠ΅Β Π΄Π΅ΠΌΠΎΠ½ΡΡΡΠΈΡΡΠ΅Ρ Π°Π½ΡΠΈΡΠΊΡΡΡΠ΄Π°ΡΠΈΠ²Π½ΡΡ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ, ΡΠΊΠ²ΠΈΠ²Π°Π»Π΅Π½ΡΠ½ΡΡ Π»Π΅ΠΊΠ°ΡΡΡΠ²Π΅Π½Π½ΠΎΠΌΡ ΡΡΠ΅Π΄ΡΡΠ²Ρ Β«ΠΠΈΠΊΠ»ΠΎΡΠ΅Π½Π°ΠΊΒ» Π½Π° ΡΠΎΠ½Π΅ Π½ΠΈΠ·ΠΊΠΎΠΉ ΡΠΎΠΊΡΠΈΡΠ½ΠΎΡΡΠΈ ΠΈ ΠΌΠΎΠΆΠ΅Ρ Π±ΡΡΡ ΡΠ΅ΠΊΠΎΠΌΠ΅Π½Π΄ΠΎΠ²Π°Π½ΠΎ Π΄Π»Ρ ΡΠ³Π»ΡΠ±Π»Π΅Π½Π½ΡΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ.ΠΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Π½Ρ ΠΏΡΠΈΡΠ²ΡΡΠ΅Π½ΠΎ ΡΠ°ΡΡΠΎΠ½Π°Π»ΡΠ½ΠΎΠΌΡ Π΄ΠΈΠ·Π°ΠΉΠ½Ρ Π½ΠΎΠ²ΠΈΡ
Π½Π΅ΡΡΠ΅ΡΠΎΡΠ΄Π½ΠΈΡ
ΠΏΡΠΎΡΠΈΠ·Π°ΠΏΠ°Π»ΡΠ½ΠΈΡ
Π»ΡΠΊΠ°ΡΡΡΠΊΠΈΡ
Π·Π°ΡΠΎΠ±ΡΠ²Β (ΠΠΠΠ) Π· Π²ΠΈΠΊΠΎΡΠΈΡΡΠ°Π½Π½ΡΠΌ 4-ΡΡΠ°Π·ΠΎΠ»ΡΠ΄ΠΈΠ½ΠΎΠ½ΠΎΠ²ΠΎΠ³ΠΎ Β«ΠΊΠ°ΡΠΊΠ°ΡΡΒ». ΠΠ»Ρ ΡΡΡΡΠΊΡΡΡΠ½ΠΎΡ ΠΌΠΎΠ΄ΠΈΡΡΠΊΠ°ΡΡΡ ΡΡΠ»ΡΠΎΠ²ΠΎΠ³ΠΎ Π³Π΅ΡΠ΅ΡΠΎΡΠΈΠΊΠ»Ρ ΡΠΈΠ½ΡΠ΅Π·ΠΎΠ²Π°Π½ΠΎ ΡΡΠ΄ 2-(4-R-2-ΡΠΎΡΠΌΡΠ»ΡΠ΅Π½ΠΎΠΊΡΠΈ)-N-(Rβ-ΡΠ΅Π½ΡΠ»)Π°ΡΠ΅ΡΠ°ΠΌΡΠ΄ΡΠ², ΡΠΊΡ Ρ Π°ΠΊΡΠΈΠ²Π½ΠΈΠΌΠΈ ΠΊΠ°ΡΠ±ΠΎΠ½ΡΠ»ΡΠ½ΠΈΠΌΠΈ ΡΠΏΠΎΠ»ΡΠΊΠ°ΠΌΠΈ, Π·ΡΡΡΠ½ΠΈΠΌΠΈ Β«building blocksΒ» Π΄Π»Ρ ΡΠΏΡΡΠΌΠΎΠ²Π°Π½ΠΎΠ³ΠΎ ΡΠΈΠ½ΡΠ΅Π·Ρ Π±ΡΠΎΠ»ΠΎΠ³ΡΡΠ½ΠΎ Π°ΠΊΡΠΈΠ²Π½ΠΈΡ
ΡΠΏΠΎΠ»ΡΠΊ. Π ΡΠΌΠΎΠ²Π°Ρ
ΡΠ΅Π°ΠΊΡΡΡΒ ΠΠ½ΡΠΎΠ²Π΅Π½Π°Π³Π΅Π»Ρ Π· 2-ΡΡΠΎΠΊΡΠΎ-4-ΡΡΠ°Π·ΠΎΠ»ΡΠ΄ΠΈΠ½ΠΎΠ½ΠΎΠΌ, 2-(4-Π³ΡΠ΄ΡΠΎΠΊΡΠΈΡΠ΅Π½ΡΠ»)ΡΠΌΡΠ½ΠΎ-4-ΡΡΠ°Π·ΠΎΠ»ΡΠ΄ΠΈΠ½ΠΎΠ½ΠΎΠΌ ΡΠ° ΠΏΡΠΈ ΠΎΠ΄Π½ΠΎΡΠ΅Π°ΠΊΡΠΎΡΠ½ΡΠΉ Π²Π·Π°ΡΠΌΠΎΠ΄ΡΡ Π· 3(5)-ΠΌΠ΅ΡΠΊΠ°ΠΏΡΠΎ-1,2,4-ΡΡΠΈΠ°Π·ΠΎΠ»ΠΎΠΌ Ρ ΠΌΠΎΠ½ΠΎΡ
Π»ΠΎΡΠΎΡΡΠΎΠ²ΠΎΡ ΠΊΠΈΡΠ»ΠΎΡΠΎΡ ΡΠ° ΡΠΈΠ½ΡΠ΅Π·ΠΎΠ²Π°Π½ΠΈΠΌΠΈ ΠΏΠΎΡ
ΡΠ΄Π½ΠΈΠΌΠΈΒ ΡΠ°Π»ΡΡΠΈΠ»ΠΎΠ²ΠΈΡ
Π°Π»ΡΠ΄Π΅Π³ΡΠ΄ΡΠ² ΠΎΡΡΠΈΠΌΠ°Π½ΠΎ Π³ΡΡΠΏΡ Π²ΡΠ΄ΠΏΠΎΠ²ΡΠ΄Π½ΠΈΡ
ΡΠ»ΡΠ΄Π΅Π½ΠΏΠΎΡ
ΡΠ΄Π½ΠΈΡ
. ΠΠ»Ρ ΡΠΈΠ½ΡΠ΅Π·ΠΎΠ²Π°Π½ΠΈΡ
ΡΠ»ΡΠ΄Π΅Π½ΠΎΠ²ΠΈΡ
ΠΏΠΎΡ
ΡΠ΄Π½ΠΈΡ
Β ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½Ρ Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Π½Ρ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΡΠ² Π³ΠΎΡΡΡΠΎΡ ΡΠΎΠΊΡΠΈΡΠ½ΠΎΡΡΡ ΡΠ° Π°Π½ΡΠΈΠ΅ΠΊΡΡΠ΄Π°ΡΠΈΠ²Π½ΠΎΡ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ Π· Π²ΠΈΠΊΠΎΡΠΈΡΡΠ°Π½Π½ΡΠΌ ΠΊΠ°ΡΠ°Π³Π΅Π½ΡΠ½ΠΎΠ²ΠΎΡ ΠΌΠΎΠ΄Π΅Π»Ρ Π·Π°ΠΏΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΠΏΡΠΎΡΠ΅ΡΡ. ΠΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΠΎ Π²ΡΡ ΡΠΈΠ½ΡΠ΅Π·ΠΎΠ²Π°Π½Ρ ΡΠΏΠΎΠ»ΡΠΊΠΈ Π΄Π΅ΠΌΠΎΠ½ΡΡΡΡΡΡΡΒ Π°Π½ΡΠΈΠ΅ΠΊΡΡΠ΄Π°ΡΠΈΠ²Π½Ρ Π°ΠΊΡΠΈΠ²Π½ΡΡΡΡ ΡΠ° ΠΏΡΠΎΠ°Π½Π°Π»ΡΠ·ΠΎΠ²Π°Π½Ρ Π΄Π΅ΡΠΊΡ Π·Π°ΠΊΠΎΠ½ΠΎΠΌΡΡΠ½ΠΎΡΡΡ Β«ΡΡΡΡΠΊΡΡΡΠ° β Π³ΠΎΡΡΡΠ° ΡΠΎΠΊΡΠΈΡΠ½ΡΡΡΡ βΒ Π°Π½ΡΠΈΠ΅ΠΊΡΡΠ΄Π°ΡΠΈΠ²Π½Π° Π°ΠΊΡΠΈΠ²Π½ΡΡΡΡΒ». ΠΠ° ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ°ΠΌΠΈ in vivo Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Ρ ΡΠ΄Π΅Π½ΡΠΈΡΡΠΊΠΎΠ²Π°Π½ΠΎ ΡΠΏΠΎΠ»ΡΠΊΡ β Π»ΡΠ΄Π΅Ρ β Π΅ΡΠΈΠ»ΠΎΠ²ΠΈΠΉ Π΅ΡΡΠ΅Ρ 4-{2-[4-Ρ
Π»ΠΎΡΠΎ-2-(6-ΠΎΠΊΡΠΎΡΡΠ°Π·ΠΎΠ»ΠΎ[3,2-b][1,2,4]ΡΡΠΈΠ°Π·ΠΎΠ»-5-ΡΠ»ΡΠ΄Π΅Π½ΠΌΠ΅ΡΠΈΠ»)-ΡΠ΅Π½ΠΎΠΊΡΠΈ]-Π°ΡΠ΅ΡΠΈΠ»Π°ΠΌΡΠ½ΠΎ}-Β Π±Π΅Π½Π·ΠΎΠ°ΡΠ½ΠΎΡ ΠΊΠΈΡΠ»ΠΎΡΠΈ, ΡΠΊΠ° Π΄Π΅ΠΌΠΎΠ½ΡΡΡΡΡ Π°Π½ΡΠΈΠ΅ΠΊΡΡΠ΄Π°ΡΠΈΠ²Π½Ρ Π°ΠΊΡΠΈΠ²Π½ΡΡΡΡ, Π΅ΠΊΠ²ΡΠ²Π°Π»Π΅Π½ΡΠ½Ρ Π»ΡΠΊΠ°ΡΡΡΠΊΠΎΠΌΡ Π·Π°ΡΠΎΠ±ΡΒ Β«ΠΠΈΠΊΠ»ΠΎΡΠ΅Π½Π°ΠΊΒ» Π½Π° ΡΠΎΠ½Ρ Π½ΠΈΠ·ΡΠΊΠΎΡ ΡΠΎΠΊΡΠΈΡΠ½ΠΎΡΡΡ ΡΠ° ΠΌΠΎΠΆΠ΅ Π±ΡΡΠΈ ΡΠ΅ΠΊΠΎΠΌΠ΅Π½Π΄ΠΎΠ²Π°Π½ΠΈΠΉ Π΄Π»Ρ ΠΏΠΎΠ³Π»ΠΈΠ±Π»Π΅Π½ΠΈΡ
Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Ρ
Direct Imaging of Fine Structures in Giant Planet Forming Regions of the Protoplanetary Disk around AB Aurigae
We report high-resolution 1.6 \micron polarized intensity () images of
the circumstellar disk around the Herbig Ae star AB Aur at a radial distance of
22 AU () up to 554 AU (3.85), which have been obtained by the
high-contrast instrument HiCIAO with the dual-beam polarimetry. We revealed
complicated and asymmetrical structures in the inner part (140 AU) of
the disk, while confirming the previously reported outer ( 200 AU)
spiral structure. We have imaged a double ring structure at 40 and
100 AU and a ring-like gap between the two. We found a significant
discrepancy of inclination angles between two rings, which may indicate that
the disk of AB Aur is warped. Furthermore, we found seven dips (the typical
size is 45 AU or less) within two rings as well as three prominent
peaks at 40 AU. The observed structures, including a bumpy double ring, a
ring-like gap, and a warped disk in the innermost regions, provide essential
information for understanding the formation mechanism of recently detected
wide-orbit ( 20 AU) planets.Comment: 12 pages, 3 figure
Imaging of a Transitional Disk Gap in Reflected Light: Indications of Planet Formation Around the Young Solar Analog LkCa 15
We present H- and Ks-band imaging data resolving the gap in the transitional
disk around LkCa 15, revealing the surrounding nebulosity. We detect sharp
elliptical contours delimiting the nebulosity on the inside as well as the
outside, consistent with the shape, size, ellipticity, and orientation of
starlight reflected from the far-side disk wall, whereas the near-side wall is
shielded from view by the disk's optically thick bulk. We note that
forward-scattering of starlight on the near-side disk surface could provide an
alternate interpretation of the nebulosity. In either case, this discovery
provides confirmation of the disk geometry that has been proposed to explain
the spectral energy distributions (SED) of such systems, comprising an
optically thick outer disk with an inner truncation radius of ~46 AU enclosing
a largely evacuated gap. Our data show an offset of the nebulosity contours
along the major axis, likely corresponding to a physical pericenter offset of
the disk gap. This reinforces the leading theory that dynamical clearing by at
least one orbiting body is the cause of the gap. Based on evolutionary models,
our high-contrast imagery imposes an upper limit of 21 Jupiter masses on
companions at separations outside of 0.1" and of 13 Jupiter masses outside of
0.2". Thus, we find that a planetary system around LkCa 15 is the most likely
explanation for the disk architecture.Comment: 5 pages, 4 figures, accepted for publication in ApJ Letters. Minor
change to Figure
New Techniques for High-Contrast Imaging with ADI: the ACORNS-ADI SEEDS Data Reduction Pipeline
We describe Algorithms for Calibration, Optimized Registration, and Nulling
the Star in Angular Differential Imaging (ACORNS-ADI), a new, parallelized
software package to reduce high-contrast imaging data, and its application to
data from the SEEDS survey. We implement several new algorithms, including a
method to register saturated images, a trimmed mean for combining an image
sequence that reduces noise by up to ~20%, and a robust and computationally
fast method to compute the sensitivity of a high-contrast observation
everywhere on the field-of-view without introducing artificial sources. We also
include a description of image processing steps to remove electronic artifacts
specific to Hawaii2-RG detectors like the one used for SEEDS, and a detailed
analysis of the Locally Optimized Combination of Images (LOCI) algorithm
commonly used to reduce high-contrast imaging data. ACORNS-ADI is written in
python. It is efficient and open-source, and includes several optional features
which may improve performance on data from other instruments. ACORNS-ADI
requires minimal modification to reduce data from instruments other than
HiCIAO. It is freely available for download at
www.github.com/t-brandt/acorns-adi under a BSD license.Comment: 15 pages, 9 figures, accepted to ApJ. Replaced with accepted version;
mostly minor changes. Software update
Near-Infrared Multi-Band Photometry of the Substellar Companion GJ 758 B
GJ 758 B is a cold (~600K) companion to a Sun-like star at 29 AU projected
separation, which was recently detected with high-contrast imaging. Here we
present photometry of the companion in seven photometric bands from
Subaru/HiCIAO, Gemini/NIRI and Keck/NIRC2, providing a rich sampling of the
spectral energy distribution in the 1-5 micron wavelength range. A clear
detection at 1.58 micron combined with an upper limit at 1.69 micron shows
methane absorption in the atmosphere of the companion. The mass of the
companion remains uncertain, but an updated age estimate indicates that the
most likely mass range is ~30-40 Mjup. In addition, we present an updated
astrometric analysis that imposes tighter constraints on GJ 758 B's orbit and
identifies the proposed second candidate companion, "GJ 758 C", as a background
star.Comment: 10 pages, 4 figures, accepted for publication in ApJ Letters. New
version: Corrected a few numbers in the astrometry section (which were
already correct in the print version, but were based on an outdated
simulation in the astro-ph version
ΠΡΠΎΠ³Π½ΠΎΡΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΈ ΠΏΡΠ΅Π΄ΠΈΠΊΡΠΈΠ²Π½ΡΠ΅ Π±ΠΈΠΎΠΌΠ°ΡΠΊΠ΅ΡΡ ΡΠ°ΠΊΠ° ΠΏΡΠ΅Π΄ΡΡΠ°ΡΠ΅Π»ΡΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ (ΠΎΠ±Π·ΠΎΡ Π»ΠΈΡΠ΅ΡΠ°ΡΡΡΡ)
In the era of personalized treatment, oncologists are striving to tailor medical treatment to the characteristics of the individual patient, emphasizing the importance of a continuous search for accurate biomarkers. Prognostic biomarkers reflect the intricate underlying biology that enables cancer to progress. Intratumoural heterogeneity includes genetic, epigenetic and functional heterogeneity. Genetic intratumour heterogeneity is a consequence of clonal evolution and a cause of desease progression. Herewith specific mutations are associated with particular stages of tumour development, correlates with specific histopathological disease stages. Many patients with prostate cancer have disease recurrence after resection of the tumor despite adjuvant therapy, while some patients dont have a relapse despite the absence of treatment. So the reassessment of the current criteria and better prognostic and predictive biomarkers for the selection of patients who might benefit from adjuvant chemotherapy are urgently needed. A prognostic biomarker reflects the natural history of the tumor and provides information on the likely outcome and prognosis, independent of a specific treatment. Predictive biomarkers indicate the sensitivity or resistance of the tumor to a given treatment. Some markers can be both prognostic and predictive. Gene mutations and epigenetic changes that modify the intracellular signaling pathways may be important factors in oncogenesis. In this context, oncogenes, genes-tumor suppressors and miRNAs have attracted attention as potential biomarkers and regulators of oncogenesis and evaluate in clinical trials.Π ΡΠΏΠΎΡ
Ρ ΠΏΠ΅ΡΡΠΎΠ½Π°Π»ΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ Π»Π΅ΡΠ΅Π½ΠΈΡ ΠΎΠ½ΠΊΠΎΠ»ΠΎΠ³ΠΈ ΡΡΡΠ΅ΠΌΡΡΡΡ Π°Π΄Π°ΠΏΡΠΈΡΠΎΠ²Π°ΡΡ Π΅Π³ΠΎ ΠΊ ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎΡΡΡΠΌ ΠΊΠΎΠ½ΠΊΡΠ΅ΡΠ½ΠΎΠ³ΠΎ ΠΏΠ°ΡΠΈΠ΅Π½ΡΠ°, ΠΏΠΎΠ΄ΡΠ΅ΡΠΊΠΈΠ²Π°Ρ Π²Π°ΠΆΠ½ΠΎΡΡΡ Π½Π΅ΠΏΡΠ΅ΡΡΠ²Π½ΠΎΠ³ΠΎ ΠΏΠΎΠΈΡΠΊΠ° ΡΠΎΡΠ½ΡΡ
Π±ΠΈΠΎΠΌΠ°ΡΠΊΠ΅ΡΠΎΠ². ΠΡΠΎΠ³Π½ΠΎΡΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ Π±ΠΈΠΎΠΌΠ°ΡΠΊΠ΅ΡΡ ΠΎΡΡΠ°ΠΆΠ°ΡΡ ΡΠ»ΠΎΠΆΠ½ΡΡ Π±ΠΈΠΎΠ»ΠΎΠ³ΠΈΡ, ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡΡΡΡ Π·Π»ΠΎΠΊΠ°ΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΎΠΉ ΠΎΠΏΡΡ
ΠΎΠ»ΠΈ ΠΏΡΠΎΠ³ΡΠ΅ΡΡΠΈΡΠΎΠ²Π°ΡΡ. ΠΠ½ΡΡΡΠΈΠΎΠΏΡΡ
ΠΎΠ»Π΅Π²Π°Ρ Π³Π΅ΡΠ΅ΡΠΎΠ³Π΅Π½Π½ΠΎΡΡΡ Π²ΠΊΠ»ΡΡΠ°Π΅Ρ Π² ΡΠ΅Π±Ρ Π³Π΅Π½Π΅ΡΠΈΡΠ΅ΡΠΊΡΡ, ΡΠΏΠΈΠ³Π΅Π½Π΅ΡΠΈΡΠ΅ΡΠΊΡΡ ΠΈ ΡΡΠ½ΠΊΡΠΈΠΎΠ½Π°Π»ΡΠ½ΡΡ Π³Π΅ΡΠ΅ΡΠΎΠ³Π΅Π½Π½ΠΎΡΡΡ. ΠΠ΅Π½Π΅ΡΠΈΡΠ΅ΡΠΊΠ°Ρ Π²Π½ΡΡΡΠΈΠΎΠΏΡΡ
ΠΎΠ»Π΅Π²Π°Ρ Π³Π΅ΡΠ΅ΡΠΎΠ³Π΅Π½Π½ΠΎΡΡΡ ΡΠ²Π»ΡΠ΅ΡΡΡ ΡΠ»Π΅Π΄ΡΡΠ²ΠΈΠ΅ΠΌ ΠΊΠ»ΠΎΠ½Π°Π»ΡΠ½ΠΎΠΉ ΡΠ²ΠΎΠ»ΡΡΠΈΠΈ ΠΈ ΠΏΡΠΈΡΠΈΠ½ΠΎΠΉ ΠΏΡΠΎΠ³ΡΠ΅ΡΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΡ. ΠΡΠΈ ΡΡΠΎΠΌ ΡΠΏΠ΅ΡΠΈΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΌΡΡΠ°ΡΠΈΠΈ Π°ΡΡΠΎΡΠΈΠΈΡΠΎΠ²Π°Π½Ρ Ρ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Π½ΡΠΌΠΈ ΡΡΠ°Π΄ΠΈΡΠΌΠΈ ΡΠ°Π·Π²ΠΈΡΠΈΡ ΠΎΠΏΡΡ
ΠΎΠ»ΠΈ, ΠΊΠΎΡΠΎΡΡΠ΅ ΠΊΠΎΡΡΠ΅Π»ΠΈΡΡΡΡ Ρ ΠΊΠΎΠ½ΠΊΡΠ΅ΡΠ½ΡΠΌΠΈ Π³ΠΈΡΡΠΎΠΏΠ°ΡΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ ΡΡΠ°Π΄ΠΈΡΠΌΠΈ Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΡ. ΠΠ½ΠΎΠ³ΠΈΠ΅ ΠΏΠ°ΡΠΈΠ΅Π½ΡΡ Ρ ΡΠ°ΠΊΠΎΠΌ ΠΏΡΠ΅Π΄ΡΡΠ°ΡΠ΅Π»ΡΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ ΠΈΠΌΠ΅ΡΡ ΡΠ΅ΡΠΈΠ΄ΠΈΠ² Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΡ ΠΏΠΎΡΠ»Π΅ ΠΊΡΡΠ°ΡΠΈΠ²Π½ΠΎΠ³ΠΎ Π»Π΅ΡΠ΅Π½ΠΈΡ, Π½Π΅ΡΠΌΠΎΡΡΡ Π½Π° Π°Π΄ΡΡΠ²Π°Π½ΡΠ½ΡΡ ΡΠ΅ΡΠ°ΠΏΠΈΡ, Π² ΡΠΎ Π²ΡΠ΅ΠΌΡ ΠΊΠ°ΠΊ Ρ Π½Π΅ΠΊΠΎΡΠΎΡΡΡ
Π±ΠΎΠ»ΡΠ½ΡΡ
ΡΠ΅ΡΠΈΠ΄ΠΈΠ² Π½Π΅ ΡΠ°Π·Π²ΠΈΠ²Π°Π΅ΡΡΡ Π΄Π°ΠΆΠ΅ ΠΏΡΠΈ ΠΎΡΡΡΡΡΡΠ²ΠΈΠΈ Π»Π΅ΡΠ΅Π½ΠΈΡ. ΠΠΎΡΡΠΎΠΌΡ ΡΡΠΎΡΠ½ΠΎ Π½Π΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΡ ΠΏΠ΅ΡΠ΅ΠΎΡΠ΅Π½ΠΊΠ° ΡΡΡΠ΅ΡΡΠ²ΡΡΡΠΈΡ
ΠΊΡΠΈΡΠ΅ΡΠΈΠ΅Π² ΠΈ Π½ΠΎΠ²ΡΠ΅ ΠΏΡΠΎΠ³Π½ΠΎΡΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΈ ΠΏΡΠ΅Π΄ΠΈΠΊΡΠΈΠ²Π½ΡΠ΅ Π±ΠΈΠΎΠΌΠ°ΡΠΊΠ΅ΡΡ Π΄Π»Ρ ΠΎΡΠ±ΠΎΡΠ° ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ², ΠΊΠΎΡΠΎΡΡΠ΅ ΠΌΠΎΠ³Π»ΠΈ Π±Ρ ΠΏΠΎΠ»ΡΡΠΈΡΡ ΠΏΠΎΠ»ΡΠ·Ρ ΠΎΡ Π°Π΄ΡΡΠ²Π°Π½ΡΠ½ΠΎΠΉ Ρ
ΠΈΠΌΠΈΠΎΡΠ΅ΡΠ°ΠΏΠΈΠΈ. ΠΡΠΎΠ³Π½ΠΎΡΡΠΈΡΠ΅ΡΠΊΠΈΠΉ Π±ΠΈΠΎΠΌΠ°ΡΠΊΠ΅Ρ ΠΎΡΡΠ°ΠΆΠ°Π΅Ρ Π΅ΡΡΠ΅ΡΡΠ²Π΅Π½Π½ΡΡ ΠΈΡΡΠΎΡΠΈΡ ΡΠ°Π·Π²ΠΈΡΠΈΡ ΠΎΠΏΡΡ
ΠΎΠ»ΠΈ ΠΈ ΠΏΡΠ΅Π΄ΠΎΡΡΠ°Π²Π»ΡΠ΅Ρ ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΡ ΠΎ Π²Π΅ΡΠΎΡΡΠ½ΠΎΠΌ ΠΈΡΡ
ΠΎΠ΄Π΅ ΠΈ ΠΏΡΠΎΠ³Π½ΠΎΠ·Π΅ Π½Π΅Π·Π°Π²ΠΈΡΠΈΠΌΠΎ ΠΎΡ ΡΠΏΠ΅ΡΠΈΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ Π»Π΅ΡΠ΅Π½ΠΈΡ. ΠΡΠ΅Π΄ΠΈΠΊΡΠΈΠ²Π½ΡΠ΅ Π±ΠΈΠΎΠΌΠ°ΡΠΊΠ΅ΡΡ ΡΠΊΠ°Π·ΡΠ²Π°ΡΡ Π½Π° ΡΡΠ²ΡΡΠ²ΠΈΡΠ΅Π»ΡΠ½ΠΎΡΡΡ ΠΈΠ»ΠΈ ΡΠ΅Π·ΠΈΡΡΠ΅Π½ΡΠ½ΠΎΡΡΡ ΠΎΠΏΡΡ
ΠΎΠ»ΠΈ ΠΊ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Π½ΠΎΠΌΡ Π»Π΅ΡΠ΅Π½ΠΈΡ. ΠΠ΅ΠΊΠΎΡΠΎΡΡΠ΅ Π±ΠΈΠΎΠΌΠ°ΡΠΊΠ΅ΡΡ ΠΌΠΎΠ³ΡΡ Π±ΡΡΡ ΠΎΠ΄Π½ΠΎΠ²ΡΠ΅ΠΌΠ΅Π½Π½ΠΎ ΠΏΡΠΎΠ³Π½ΠΎΡΡΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ ΠΈ ΠΏΡΠ΅Π΄ΠΈΠΊΡΠΈΠ²Π½ΡΠΌΠΈ. ΠΠ΅Π½Π½ΡΠ΅ ΠΌΡΡΠ°ΡΠΈΠΈ ΠΈ ΡΠΏΠΈΠ³Π΅Π½Π΅ΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΡ, Π²Π»ΠΈΡΡΡΠΈΠ΅ Π½Π° Π²Π½ΡΡΡΠΈΠΊΠ»Π΅ΡΠΎΡΠ½ΡΠ΅ ΡΠΈΠ³Π½Π°Π»ΡΠ½ΡΠ΅ ΠΏΡΡΠΈ, ΠΌΠΎΠ³ΡΡ Π±ΡΡΡ Π²Π°ΠΆΠ½ΡΠΌΠΈ ΡΠ°ΠΊΡΠΎΡΠ°ΠΌΠΈ ΠΎΠ½ΠΊΠΎΠ³Π΅Π½Π΅Π·Π°. Π ΡΡΠΎΠΌ ΠΊΠΎΠ½ΡΠ΅ΠΊΡΡΠ΅ ΠΎΠ½ΠΊΠΎΠ³Π΅Π½Ρ, Π³Π΅Π½Ρ-ΡΡΠΏΡΠ΅ΡΡΠΎΡΡ ΠΎΠΏΡΡ
ΠΎΠ»Π΅ΠΉ ΠΈ ΠΌΠΈΠΊΡΠΎΠ ΠΠ ΠΏΡΠΈΠ²Π»Π΅ΠΊΠ°ΡΡ Π²Π½ΠΈΠΌΠ°Π½ΠΈΠ΅ Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΠΏΠΎΡΠ΅Π½ΡΠΈΠ°Π»ΡΠ½ΡΡ
ΡΠ΅Π³ΡΠ»ΡΡΠΎΡΠΎΠ² ΠΈ Π±ΠΈΠΎΠΌΠ°ΡΠΊΠ΅ΡΠΎΠ² ΠΎΠ½ΠΊΠΎΠ³Π΅Π½Π΅Π·Π° ΠΈ ΠΎΡΠ΅Π½ΠΈΠ²Π°ΡΡΡΡ Π² ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡΡ
The Moving Group Targets of the Seeds High-Contrast Imaging Survey of Exoplanets and Disks: Results and Observations from the First Three Years
We present results from the first three years of observations of moving group (MG) targets in the Strategic Exploration of Exoplanets and Disks with Subaru (SEEDS) high-contrast imaging survey of exoplanets and disks using the Subaru telescope. We achieve typical contrasts of (is) approximately10(exp 5) at 1" and (is) approximately 10(exp 6) beyond 2" around 63 proposed members of nearby kinematic MGs. We review each of the kinematic associations to which our targets belong, concluding that five, beta Pictoris ((is) approximately 20 Myr), AB Doradus ((is) approximately 100 Myr), Columba ((is) approximately 30 Myr), Tucana-Horogium ((is) approximately 30 Myr), and TW Hydrae ((is) approximately 10 Myr), are sufficiently well-defined to constrain the ages of individual targets. Somewhat less than half of our targets are high-probability members of one of these MGs. For all of our targets, we combine proposed MG membership with other age indicators where available, including Ca ii HK emission, X-ray activity, and rotation period, to produce a posterior probability distribution of age. SEEDS observations discovered a substellar companion to one of our targets, kappa And, a late B star. We do not detect any other substellar companions, but do find seven new close binary systems, of which one still needs to be confirmed. A detailed analysis of the statistics of this sample, and of the companion mass constraints given our age probability distributions and exoplanet cooling models, will be presented in a forthcoming paper
Design and Simulation Elements of Analytical Microsystem-on-Chip With the Structures "Silicon-on-Insulator"
In this paper the results of architecture development, layout designof analytical microsystem-on-chip with the structures "silicon-on-insulator" (SOI) and its elements schemotechnical computer simulation for determine their electrical and time characteristics are presented. Keywords: analytical microsystem-on-chip, silicon-on-insulator structure, gate array, ring oscillator