In vivo Effects of Di-n-butyl Phthalate and Di-2-ehthyhexyl Phthalate on the Nonspecific Defense Mechanism of the Bagrid Catfish, Pseudobagrus fulvidraco

Fatima,강주찬,금유화,지정훈 한국수산과학회 2006 Fisheries and Aquatic Sciences Vol.9 No.1

The Nexus between Capital Structure and Firm Value by Profitability Moderation: Evidence from Saudi Arabia

Nadeem FATIMA(Nadeem FATIMA ),Abdul Rahman SHAIK(Abdul Rahman SHAIK ) 한국유통과학회 2022 The Journal of Asian Finance, Economics and Busine Vol.9 No.9

The current study examines the nexus between the capital structure (debt-equity) and firm value (Tobin’s Q) by including profitability (alternatively Return on Assets (ROA) and Return on Equity (ROE)) as a moderator in the companies of Saudi Arabia. The study sample consists of 102 companies listed on Tadawul (the Saudi Arabian stock exchange) from different sectors of Saudi Arabia during the period 2013 to 2020. The study estimates pooled regression, panel regression with fixed and random effects, and dynamic panel regression models to report the results. The study results report that there is a negative and significant association between capital structure and firm value in model 1, while in models 2 and 3 there is a more negative and significant impact between the two study variables compared to model 1 after the inclusion of interaction variable, i.e. profitability in terms of ROA and ROE. The comparative result shows that the companies of Saudi Arabia hold more debt in their capital structure mix, hence evidencing a decrease in the firm value. The reported results also show that models 2 and 3 are better in explaining the impact of capital structure on firm value due to the interaction of profitability compared to model 1.

Railway Track Structural Health Monitoring System

Fatima Imdad,Muhammad Tabish Niaz,Hyung Seok Kim 제어로봇시스템학회 2015 제어로봇시스템학회 국제학술대회 논문집 Vol.2015 No.10

Railway is one of the most used means of transportation. For the railway system to operate flawlessly constant monitoring and inspection of railway tracks is required. Currently railway track inspection and monitoring is done manually which is time taking and not accurate, due to the high chance of human error occurrence. Moreover, practically it is impossible to inspect and monitor the railway track manually as they run thousands of miles. To avoid this we propose a prototype system, designed for continuous monitoring of railway tracks using a combination of sensors. These sensors collect data and through computational analysis faults in the railway tracks are identified. The collected data can help in finding cracks in the tracks and catastrophic accidents can be avoided.

Conception and Manufacturing of a Planar Inductance on NiFe Substrate

Fatima Zohra Medjaoui,Azzedine Hamid,Yacine Guettaf,Pierre Spiteri,Vincent Bley 한국전기전자재료학회 2019 Transactions on Electrical and Electronic Material Vol.20 No.3

The present paper presents the study, realization and characterization of a micro-coil sandwiched using a relatively thick layer of magnetic material. The integration of this micro-coil with as a starting point a set of specifi cations, requires the following steps: Identifi cation and validation of geometric parameters for the calculation of electrical parameters. Losses dissipated as heat in these electronic systems are becoming a major concern for designers. This prompted to take into account the thermal design. The results obtained have allowed to realize a micro-coil micro square planar coil sandwiched shaped between two magnetic materials. Several carried measures focused on the inductance and resistance which are related to the frequency f , the module and phase of the impedance, and the gap g . The operation of these data is used to trace the evolution of theinductance value L s , the quality factor Q and the resistor R s as a function of frequency.

The Antioxidant Activity and Thermal Stability of Lemon Verbena (Aloysia triphylla) Infusion

Fatima Abderrahim,Seyer Estrella,Cristina Susin,Silvia M. Arribas,M. Carmen Gonzailez,Luis Condezo-Hoyos 한국식품영양과학회 2011 Journal of medicinal food Vol.14 No.5

Because of its good sensorial attributes, lemon verbena is used as a primary ingredient in infusions and nonalcoholic drinks. The present study was designed to assess the antioxidant activity (AA) of lemon verbena infusion (LVI) as well as the thermal stability of its AA and the content of polyphenolic compounds. The values reflecting the AA of LVI, including AA index, fast scavenging rate against 2,2-diphenyl-1-picrylhydrazyl, Trolox equivalent antioxidant capacity, and hydroxyl radical scavenging, are higher than those of many herbal infusions and antioxidant drinks estimated from reported data. In addition, the slope lag time and specific oxyradical antioxidant capacity values of LVI are comparable to those of a commercial antioxidant drink based on green tea. Hence, LVI is a source of bifunctional antioxidants, and thus in vivo studies of the antioxidant capacity of LVI would be useful to evaluate its potential as an ingredient in antioxidant drinks.

Women Empowerment

Fatima GHAZAL 이화여자대학교 아시아여성학센터 2017 이화여자대학교 아시아여성학센터 학술대회자료집 Vol.2017 No.01

During the last fourteen years, Afghan media has played a significant role in empowering women and they still do. The media has a crucial responsibility in promoting women’s participation in society. It has the power to spread messages and raise awareness on the challenges that women face. Most importantly, media has given women the voice which has allowed them to actively engage with the Afghan government, interest groups and society at large. Directed by the media affect theories, numerous studies have been done on the media representing women around the world. The objectives of such studies have been to figure out how media present women and how media representation of women affects their role and perception in society. From the feminist media theory perspective, women representation in the women print media hassignificanteto make and points that can be translated and applied to the current paper. Women’s media has always been successful in using themes such as women empowerment agenda. These are then placed within certain contexts and meanings that convey the messages directly to the target audiences.

Facile and safe graphene preparation on solution based platform

Fatima Tuz Johra,이지욱,정우광 한국공업화학회 2014 Journal of Industrial and Engineering Chemistry Vol.20 No.5

Graphene has attracted increasing attention because of its interesting properties. In this study, graphene was prepared from graphite by a very simple and easy process. The two-step protocol involves conversion of graphite to graphene oxide (GO) by oxidation, and subsequent reduction of GO to graphene. The structures and properties of the obtained GO and graphene were characterized via X-ray diffraction, and Raman, NMR, UV–vis absorption, and X-ray photoelectron spectroscopic techniques. The morphologies of these products were observed via field emission scanning electron microscopy. The preparation protocol is simple, easy, environmental friendly, i.e., nontoxic, and the yield of graphene is high.

Magnetothermal behavior of a planar coil

Fatima Zohra Medjaoui,Abderrahim Mokhfi,Yacine Guettaf,Pierre Spetiri,Azzedine Hamid 한국전기전자재료학회 2022 Transactions on Electrical and Electronic Material Vol.23 No.2

The world of microelectronics is punctuated by the permanent race for integration, in order to be able to reduce the sizes, costs and power consumption of products. The largest discrete components which are seek today are passive elements, present in an increasingly important proportion. In circuits (resistors, inductors and capacitors). The scientific research aimed at highlighting the magnetothermal behavior of this type of component shows a certain deficit. In this regard, this paper presents an investigation by way of numerical simulation of the magnetothermic behavior, allowing the enhancement of the design of a square planar coil sandwiched between two magnetic materials. It is intended to be inserted in a micro-converter of Buck type. The phenomenon studied is governed by Maxwell’s equations coupled with the heat equation, which are solved by the finite element method. The heat transfer processes by conduction and by convection are taken into account in steady state. Gap effects are considered as a control parameter on the magnetic, electrical and thermal behaviours, in order to determine it’s the optimal value allowing to have the best inductor operation while having an optimum cooling ratio. The materials composing this structure do not react in the same way to temperature variations, which will generate stresses in the materials that compose it and render it non-functional. The numerical simulation results show the distribution of the magnetic field, the role of the different materials constituting the substrate and the temperature distribution. On the other hand, they made it possible to optimize the gap value, which is considered as an important parameter during the dimensioning of the microcoil to determine the optimal geometric parameters.

Factors Predicting Early Release of Thyroid Cancer Patients from the Isolation Room after Radioiodine-131 Treatment

Fatima, Nosheen,Zaman, Maseeh uz,Zaman, Areeba,Zaman, Unaiza,Tahseen, Rabia,Shahid, Wajiha Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.1

Background: Patients with differentiated thyroid cancers (DTC) who receive radioactive iodine-131 (RAI) are released from isolation when their dose rate is below the regulatory requirements. The purpose of this study was establish predicting factors for early release from the isolation facility after RAI administration in patients with DTC. Materials and Methods: This was a prospective study which included 96 (58 females and 38 males) patients with DTC who had received RAI from April 2013 till August 2015. The study was duly approved by the ethical committee of the institute. Patients who had complete information of primary tumor size (PTS), serum TSH, stimulated thyroglobulin level [sTg] with antibodies (IU/ml) at the time of RAI treatment were included. All had a normal serum creatinine level. To attain lower effective half-life good hydration and administration of soft laxative were ensured. Dose rate was measured (immediately, 24 h and 36 h) at 1 meter distance from anterior mid trunk and a dose rate <$50{\mu}Sv/h$ was considered as the releasing criterion. At 24 h 50 patients were released while the remaining 46 patients were released at 36 h. A post-ablative whole body scan (PA-WBIS) was performed 5-8 days after RAI ablation in all patients. Results: Patients released after 24 h were significantly younger, had smaller lesions with higher proportion of papillary cancer, lower sTg, lower sTg/TSH ratio and had received a lower dose of RAI as comapred to those who were discharged after 36 h. Serum TSH and gender were not found to have any significant correlation between two cohorts. ROC and multivariate analysis have shown age ${\leq}37years$, PTS ${\leq}3.8cm$, $RAI{\leq}150mCi$, $sTg{\leq}145ng/ml$ and $sTg/TSH{\leq}1.085$ as strong indepedent predictors for early release. Conclusions: We conclude that younger age (${\leq}37years$), smaller tumor size (${\leq}3.8cm$), lower RAI dose (${\leq}150mCi$), lower sTg (${\leq}145ng/ml$) and a lower sTg/TSH ratio (${\leq}1.085$) are significant independent predictors for release at 24 h after RAI treatment in DTC patients. Effective utilization of these factors could help the treating physicians to use limited number of internment facilities with higher throughput, lower cost and lower psychological stress to patients.

Effects of Salicylic Acid and Indole Acetic Acid Exogenous Applications on Induction of Faba Bean Resistance against Orobanche crenata

Fatima Zahra Briache,Mounia Ennami,Joseph Mbasani-Mansi,Assia Lozzi,Abdelhadi Abousalim,Walid El Rodeny,Moez Amri,Zine El Abidine Triqui,Rachid Mentag 한국식물병리학회 2020 Plant Pathology Journal Vol.36 No.5

The parasitic weed, Orobanche crenata, is one of the most devastating constraint for faba bean production in Mediterranean regions. Plant host defense induction was reported as one of the most appropriate control methods in many crops. The aim of this study was to elucidate the effect of salicylic acid (SA) and indole acetic acid (IAA) on the induction of faba bean resistance to O. crenata under the field and controlled experimental conditions. Both hormones were tested on two contrasting faba bean genotypes: Giza 843 (partially resistant to O. crenata) and Lobab (susceptible) at three different application methods (seed soaking, foliar spray, and the combination of both seed soaking and foliar spray). Soaking seeds in SA or IAA provided the highest protection levels reaching ~75% compared to the untreated control plants. Both elicitors limited the chlorophyll content decrease caused by O. crenata infestation and increased phenolic compound production in host plants. Phenylalanine ammonia lyase, peroxidase, and polyphenol oxidase activities were stimulated in the host plant roots especially in the susceptible genotype Lobab. The magnitude of induction was more obvious in infested than in non-infested plants. Histological study revealed that both SA and IAA decreased the number of attached O. crenata spikes which could be related to specific defense responses in the host plant roots.