http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Anti-cancer Properties of a Sesquiterpene Lactone-bearing Fraction from Artemisia khorassanica
Rabe, Shahrzad Taghizadeh,Emami, Seyed Ahmad,Iranshahi, Mehrdad,Rastin, Maryam,Tabasi, Nafise,Mahmoudi, Mahmoud Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.3
Background: Artemisia species are important medicinal plants throughout the world. The present in vitro study, using a sesquiterpene lactone-bearing fraction prepared from Artemisia khorassanica (SLAK), sought to investigate anti-cancer properties of this plant and elucidate potential underlying mechanisms for the effects. Materials and Methods: Anti-cancer potential was evaluated by toxicity against human melanoma and fibroblast cell lines. To explore the involved pathways, pattern of any cell death was determined using annexin-V/PI staining and also the expression of Bax and cytochrome c was investigated by Western blotting. Results: The results showed that SLAK selectively caused a concentration-related inhibition of proliferation of melanoma cells that was associated with remarkable increase in early events and over-expression of both Bax and cytochrome c. Conclusions: The current experiment indicates that Artemisia may have anti-cancer activity. We anticipate that the ingredients may be employed as therapeutic candidates for melanoma.
Rushdya Rabee Ali Hassan 한국정밀공학회 2020 International Journal of Precision Engineering and Vol.21 No.1
The present experimental study investigate the use of aloe vera gel as an innovative material to reinforce the degraded leather. The effectiveness of the proposed material was assessed by measuring the mechanical properties, color change, infrared spectroscopy, pH measurement, and microscopic examination. The results showed the effectiveness of the gel material in improving the tensile strength, elongation, and reducing the color change during the aging process without affecting the degree of pH as well as its ability to penetrate the fiber cells, which contributed to increase the size of fibers, fiber bundles, and the cohesion of internal structure of the leather as explained the results of SEM. Although gel has no effect in inhibiting the growth of fungi, it has helped reduce growth slightly.
A THREE-PHASE ACTIVE POWER FILTER APPLICATION AND DESIGN
M.BOU-RABEE,D.SUTANTO,F.BARONE,GYU-HA CHOE 전력전자학회 1992 ICPE(ISPE)논문집 Vol.1992 No.4
A new three-phase Active power filter topology is described, which can control both the fundamental and the harmonic components in the ac current of the non-linear power electronic loads. The circuit configuration of the filter is used to reduce the filter capacity greatly and several characteristics of the filter are investigated by simulation and experiment.<br/>
Message Aggregation in VANETs for Delay Sensitive Applications
Sanket Desai,Rabee Elhdad,Naveen Chilamkurti 보안공학연구지원센터 2015 International Journal of Smart Home Vol.9 No.10
A Vehicular Ad-Hoc Network (VANET) is categorized as a Mobile Ad-Hoc Network (MANET) which delivers wireless network servies with an aim to improve road safety and enhance driving comfort. Diverse applications of Vehicular Ad-Hoc Networks such as infotainment, road safety and public safety have made VANETs as a notable and emerging area of research and development. As of now, numerous vehicular ad-hoc network research projects have been mainly aimed at data security and routing. This has raised a critical problem of data congestion and loss of data accuracy in VANETs. A major challenge in VANETs is to provide efficient data communication and propogation for precise and valuable information. This paper presents a generalized framework for message aggregation. Message Aggregation can be used to transmit minimal data and to enhance the communication efficiency thus reducing the communication overhead in VANETs. This will help in reducing the redundancy in VANETs resulting in dissemination of precise information
Mohamed Khalifa Zayet,Yara Rabee Helaly,Salma Belal Eiid 대한영상치의학회 2014 Imaging Science in Dentistry Vol.44 No.3
Purpose: This study aimed to investigate the effect of changing the kilovoltage peak (kVp) on the radiographic assessment of dental caries. Materials and Methods: Seventy-five extracted posterior teeth with proximal caries or apparently sound proximal surfaces were radiographed with conventional E-speed films and a photostimulable phosphor system using 60 kVp and 70 kVp for the caries assessment. The images were evaluated by three oral radiologists and compared with the results of the stereomicroscope analysis. Results: No statistically significant difference was found between 60 kVp and 70 kVp for the caries detection, determination of caries extension into dentin, and caries severity in either the conventional or the digital images. Good to very good inter-observer and intra-observer agreements were found for both kilovoltage values on the conventional and digital images. Conclusion: Changing the kilovoltage between 60 kVp and 70 kVp had no obvious effect on the detection of proximal caries or determination of its extension or severity.
Park, Se Young,Rabe, Karin M.,Neaton, Jeffrey B. National Academy of Sciences 2019 PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF Vol.116 No.48
<P><B>Significance</B></P><P>Charge-order–driven ferroelectrics are an emerging class of materials with promise for high-frequency electron-dominated polarization switching, distinct from conventional ferroelectrics. However, only a few systems exhibiting this behavior have been experimentally realized thus far. With continued development of layer-by-layer growth techniques with a high level of composition control, the exploration of charge-ordered ferroelectrics can be extended to artificially structured superlattices. Here, we use density-functional theory to explore an experimentally realized bulk perovskite iron-oxide solid solution with robust charge ordering and find that in superlattices formed by layered cation ordering, bulk charge ordering is maintained and can lead to charge-order–driven ferroelectricity. Our results suggest that other broad classes of mixed valence materials may be promising candidates for discovery of electronic ferroelectrics.</P><P>Charge-order–driven ferroelectrics are an emerging class of functional materials, distinct from conventional ferroelectrics, where electron-dominated switching can occur at high frequency. Despite their promise, only a few systems exhibiting this behavior have been experimentally realized thus far, motivating the need for new materials. Here, we use density-functional theory to study the effect of artificial structuring on mixed-valence solid-solution La<SUB>1/3</SUB>Sr<SUB>2/3</SUB>FeO<SUB>3</SUB> (LSFO), a system well studied experimentally. Our calculations show that A-site cation (111)-layered LSFO exhibits a ferroelectric charge-ordered phase in which inversion symmetry is broken by changing the registry of the charge order with respect to the superlattice layering. The phase is energetically degenerate with a ground-state centrosymmetric phase, and the computed switching polarization is 39 [Formula]C/[Formula], a significant value arising from electron transfer between [Formula] octahedra. Our calculations reveal that artificial structuring of LSFO and other mixed valence oxides with robust charge ordering in the solid solution phase can lead to charge-order–induced ferroelectricity.</P>
Khodaveirdyzadeh, Roghieh,Rahimi, Rabee,Rahmani, Azad,Ghahramanian, Akram,Kodayari, Naser,Eivazi, Jamal Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.8
Background: Use of spiritual/ religious resources is one important coping strategy for breast cancer patients. However, the relationship between spiritual coping and adjustment to cancer diagnosis has not been well investigated among Iranian breast cancer patients. Materials and Methods: This descriptive-correlational study was undertaken among 266 breast cancer patients referred to two educational centers in north-western Iran. They were selected using a convenience sampling method. The Iranian Religious Coping Scale and Iranian Coping Operations Preference Enquiry were used for data collection. The data were analyzed using SPSS version 13.0. Results: The study findings showed that Iranian cancer patients had a high level of spiritual coping. Also, positive religious coping strategies were used more frequently than negative approaches. In addition, there was a positive and significant correlation between spiritual coping and adjustment to cancer among study participants. Conclusions: Using spiritual coping strategies may play a vital role in adjustment process in patients with breast cancer. Therefore, having spiritual counseling and incorporating coping strategies into the treatment regimen may be effective for enhancing illness adjustment in such patients.