9 research outputs found
A deep unified framework for suspicious action recognition
As action recognition undergoes change as a field under influence of the recent deep learning trend, and while research in areas such as background subtraction, object segmentation and action classification is steadily progressing, experiments devoted to evaluate a combination of the aforementioned fields, be it from a speed or a performance perspective, are far and few between. In this paper, we propose a deep, unified framework targeted towards suspicious action recognition that takes advantage of recent discoveries, fully leverages the power of convolutional neural networks and strikes a balance between speed and accuracy not accounted for in most research. We carry out performance evaluation on the KTH dataset and attain a 95.4% accuracy in 200 ms computational time, which compares favorably to other state-of-the-art methods. We also apply our framework to a video surveillance dataset and obtain 91.9% accuracy for suspicious actions in 205 ms computational time.This work was presented in part at the 23rd International Symposium on Artificial Life and Robotics, Beppu, Oita, January 18–20, 2018
Comparative study of reactivity of (-)-R-carvone, (-)-R-linalool and (-)-(1S,4S)-camphor derivatives: Synthesis of new heterocycles
A deep unified framework for suspicious action recognition
As action recognition undergoes change as a field under influence of the recent deep learning trend, and while research in areas such as background subtraction, object segmentation and action classification is steadily progressing, experiments devoted to evaluate a combination of the aforementioned fields, be it from a speed or a performance perspective, are far and few between. In this paper, we propose a deep, unified framework targeted towards suspicious action recognition that takes advantage of recent discoveries, fully leverages the power of convolutional neural networks and strikes a balance between speed and accuracy not accounted for in most research. We carry out performance evaluation on the KTH dataset and attain a 95.4% accuracy in 200 ms computational time, which compares favorably to other state-of-the-art methods. We also apply our framework to a video surveillance dataset and obtain 91.9% accuracy for suspicious actions in 205 ms computational time.This work was presented in part at the 23rd International Symposium on Artificial Life and Robotics, Beppu, Oita, January 18–20, 2018
Comparative study of reactivity of (-)-R-carvone, (-)-R-linalool and (-)-(1S,4S)-camphor derivatives: Synthesis of new heterocycles
Reactivity comparison by 1,3-dipolar cycloaddition of the three dipolarophiles (-)-R-Carvone (I), (-)-R-Linalool (II) and derivative of (-)-(1S,4S)-camphor (III) has been studied. By reactions of p-chlorophenylnitrile oxide, new heterocycles are obtained by stereospecific reactions for cyclic Terpenoids I and III (regardless of the length of the side chain). However the aliphatic dipolarophile II gives two diastereoisomers. Terpenoids (-)-R-Carvone I (-)-R-Linalool II and (-)-(1S,4S)-Camphor 1 are isolated respectively from Moroccan species Mentha viridis (L.), Lavandula officinalis (L.) and Artemisia herba halba (Asso). The new heterocycles obtained were identified by combination of chromatographic and spectroscopic methods
Topical anti-inflammatory activity of extracts and compounds from Thymus broussonettii.
8The topical anti-inflammatory activity of four extracts from Thymus broussonetii Boiss (Labiatae) leaves, a herbal drug used in Moroccan traditional medicine, has been studied using the croton oil ear test in mice. A bioassay-oriented fractionation revealed that the pharmacological activity is mainly in the chloroform extract. Fractionation and analysis of this extract allowed the identification of ursolic acid and oleanolic acid as the main anti-inflammatory principles. Some flavonoids (luteolin, eriodictyol, thymonin) and glycosides (luteolin-7-O-glucoside, luteolin-3'-O-glucuronide, eriodictyol-7-O-glucoside) were also isolated from the methanol extract.The topical anti-inflammatory activity of four extracts from Thymus broussonetii Boiss (Labiatae) leaves, a herbal drug used in Moroccan traditional medicine, has been studied using the croton oil ear test in mice. A bioassay-oriented fractionation revealed that the pharmacological activity is mainly in the chloroform extract. Fractionation and analysis of this extract allowed the identification of ursolic acid and oleanolic acid as the main anti-inflammatory principles. Some flavonoids (luteolin, eriodictyol, thymonin) and glycosides (luteolin-7-O-glucoside, luteolin-3'-O-glucuronide, eriodictyol-7-O-glucoside) were also isolated from the methanol extract.nonemixedISMAILI H.; SOSA S.; BRKIC D.; FKIH-TETOUANI S.; ILIDRISSI A.; TOUATI D.; AQUINO R.P.; TUBARO A.Ismaili, H.; Sosa, Silvio; Brkic, D.; FKIH TETOUANI, S.; Ilidrissi, A.; Touati, D.; Aquino, R. P.; Tubaro, Aureli
Topical anti-inflammatory activity of Thymus willdenowii
Abstract: The topical anti-inflammatory activity of Thymus willdenowii Boiss (Labiatae) leaves, a herbal drug used in Moroccan folk medicine, has been studied using the croton oil ear test in mice. A bioassay-oriented fractionation procedure showed that the activity concentrates in the chloroform extract, which has a potency similar to that of indometacin, the non-steroidal anti-inflammatory drug used as reference (ID50 (dose giving 50% oedema inhibition) = 83 μg cm−2 and 93 μg cm−2, respectively). The main compounds responsible for the anti-inflammatory activity of T. willdenowii are ursolic acid and oleanolic acid. The flavonoids luteolin-3′-O-glucuronide and eriodictyol-7-O-glucoside were found for the first time in the genus Thymus
Extracts and constituents of Thymus satureioides Coss. leaves as topical anti-inflammatory agents
Four extracts at increasing polarity were prepared from the leaves of Thymus satureioides Coss. (Labiatae) and assayed for the in vivo
topical anti-inflammatory effect using the croton oil ear test in mice, and for in vitro both antioxidant (DPPH. test) and anti-bacterial (broth
microdilution method) activities. The chloroform extract showed a topical anti-inflammatory activity (ID50 = 282g cm.2), only three times
lower than that of the reference drug indomethacin (ID50 = 93 g cm.2) and its active components were identified as ursolic and oleanolic acids.
The methanol extract, showing a significant radical-scavenging effect (SC50 = 14.54 g), was characterized by the isolation and identification
of some flavonoids. On the contrary, the extracts did not show any anti-bacterial effect against four standard aerobial bacteria strains