Influence of NaCl Salinity on the Behavior of Hydrolases and Phosphatases in Mulberry Genotypes : Relationship to Salt Tolerance

Anas, S. Shaik Mohamed,Vivekanandan, M. 한국식물학회 2000 Journal of Plant Biology Vol.43 No.4

Two genotypes (Tr4 and Tr10) of mulberry (Morus indica) were cultured using aqueous solutions that contained different concentrations of NaCl (0 to 30 mM). Electrical conductivity (EC) values ranged from 0.52 to 4.60 mS ㎝^-1, with a pH of 7.0. Analyses were conducted to envisage the effects of NaCl salinity on some hydrolytic enzymes. Neither nitrate reductase nor nitrite reductase activities were affected by salt treatment in roots and leaves of either genotype. The activities of β- and α-amylases were higher in leaves than in roots. Both alkaline and acid phosphatases exhibited significant increases in the roots and leaves of Tr4; no such trend was observed in Tr10. The levels of peroxidase and superoxide dismutase increased quite significantly in the leaves as well as the roots of both genotypes. Increased enzymatic activities may suggest a stress-tolerant nature for these genotypes against NaCl toxkity. This was also evidenced by the unaffected levels in percent rooting, chloroplast pigments, osmoprotectants, nitrogenous compounds, and some biomolecules, as had been observed in earlier studies.

The Relationship between Accounting Conservatism and Earning Management in Emerging Markets: The Moderating Role of Size

Anas Ghazalat,Jamal Abu-Serdaneh,Haifa Majaly 대한산업공학회 2023 Industrial Engineeering & Management Systems Vol.22 No.2

Various Structural Approaches to Analyze an Aircraft with High Aspect Ratio Wings

Anas El Arras,Chan Hoon Chung,Young-Ho Na,SangJoon Shin,SeYong Jang,SangYong Kim,Changmin Cho 한국항공우주학회 2012 International Journal of Aeronautical and Space Sc Vol.13 No.4

Aeroelastic analysis of an aircraft with a high aspect ratio wing for medium altitude and long endurance capability was attempted in this paper. In order to achieve such an objective, various structural models were adopted. The traditional approach has been based on a one-dimensional Euler-Bernoulli beam model. The structural analysis results of the present beam model were compared with those by the three-dimensional NASTRAN finite element model. In it, a taper ratio of 0.5 was applied; it was comprised of 21 ribs and 3 spars, and included two control surfaces. The relevant unsteady aerodynamic forces were obtained by using ZAERO, which is based on the doublet lattice method that considers flow compressibility. To obtain the unsteady aerodynamic force, the structural mode shapes and natural frequencies were transferred to ZAERO. Two types of unsteady aerodynamic forces were considered. The first was the unsteady aerodynamic forces which were based on the onedimensional beam shape; the other was based on the three-dimensional FEM model shape. These two types of aerodynamic forces were compared, and applied to the foregoing flutter analysis. The ultimate goal of the present research is to analyze the possible interaction between the rigid-body degrees of freedom and the aeroelastic modes. This will be achieved after the development of a reliable nonlinear beam formulation that would validate the current results as well as enable a thorough investigation of the nonlinearity. Moreover, such analysis will allow for an examination of the above-mentioned interaction between the flight dynamics and aeroelastic modes with the inclusion of the rigid body degrees of freedom.

Determinants of Revisit Intention Among Indonesian Beauty Clinic Customers in Distribution Beauty Clinic Market: The Mediating Role of Trust

Anas HIDAYAT,Binarinta Tirto ANDIKA,Sri Rejeki EKASASI 한국유통과학회 2024 유통과학연구 Vol.22 No.2

Purpose: This study aims to assert trust as an important mediator in the service business. The research topic relates to service businesses that have low exposure to comparative information and weak consumer positions in terms of law, such as the beauty clinic businesses in Indonesia. Research design, data, and methodology: This study uses explanatory and purposive sampling. A survey was conducted among 268 Indonesians, collected by distribution via Google Forms. The hypotheses were tested using AMOS software. Results: The results indicate that trust did not have a significant role in mediating brand awareness, service quality, and price perception on revisit intention, but only mediated satisfaction. Furthermore, this study discloses the neutralization attitude and dissonance behavior represented by trust mediation. Conclusions: These findings attempt to expand the literature on the role of trust in the service business. However, the beauty clinic business in Indonesia infers misbehavior. Misbehavior is caused by vulnerable conditions in which consumers are unable to share their experiences with other consumers. The reason is that the defamation law in Indonesia is often implemented in the wrong direction. This must be corrected so that consumers obtain their rights and create a mutually beneficial relationship between beauty businesses and consumers.

The role of alcohols and diols as co-solvents in fabrication of TON zeolite

Anas Karrar Jamil,Oki Muraza,Adnan M. Al-Amer 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.29 No.-

Numerous industrial catalysts and sorbents require better control of crystal size and morphology of thezeolites. Here, we report a method to selectively control the crystal size and morphology of ZSM-22 byusing alcohols and diols as co-solvents in water–alcohol system. The results demonstrated the role of cosolventin controlling the crystallization growth of ZSM-22 zeolite. Addition of co-solvent suppressednucleation of unwanted cristobalite phase in crystallization and growth of ZSM-22 zeolite. We foundthat alcohols and diols as cheap co-solvent are effective in tuning and controlling crystal size, aspect ratioand co-crystalization phases of zeolite ZSM-22

Removal of ring artifacts in CT imaging through detection and correction of stripes in the sinogram

Anas, Emran Mohammad Abu,Lee, Soo Yeol,Hasan, Md. Kamrul Institute of Physics in association with the Ameri 2010 Physics in medicine & biology Vol.55 No.22

<P>Due to malfunctioning and mis-calibration of cells in digital x-ray detectors as well as impurities on the scintillator screens, stripe artifacts arise in the sinogram which in turn generate ring artifacts in the reconstructed x-ray computed tomography images. In this paper, a novel technique is proposed for the detection and removal of stripe artifacts in a sinogram with a view to suppress the ring artifacts from the tomographic images. To accurately detect the stripe creating pixels using a derivative-based algorithm, at first the sinogram is windowed to create a sub-sinogram by keeping the pixel of examination at the center position in the sub-sinogram. The other pixels in the sub-sinogram are selected from a polyphase component of the sinogram. A new mathematical index is proposed here to isolate the strong and weak ring-generating stripes from the good ones. For the correction of strong ring artifacts resulting from the defective detector elements and dusty scintillator crystals, 2D variable window moving average and weighted moving average filters are proposed in this work. On the other hand, a conventionally trusted constant bias correction scheme is adopted to correct the responses of the mis-calibrated detector elements. To evaluate and compare the performance of the proposed algorithm, real micro-CT images acquired from two flat panel detectors under different operating conditions are used. Experimental results show that the proposed method can remove ring artifacts more effectively without imparting noticeable distortion in the image as compared to a recently reported technique in the literature.</P>

White Bile in Malignant Biliary Obstruction: A Poor Prognostic Marker

Anas Gremida,Tarun Rustagi 대한소화기내시경학회 2018 Clinical Endoscopy Vol.51 No.1

L2 Learners’ and Professionals’ Perceptions of Cognitive Task Complexity: Towards Developing an Index of Task Difficulty

Anas Awwad 아시아테플 2019 The Journal of Asia TEFL Vol.16 No.2

This paper attempts to broaden our understanding on how cognitive task complexity (TC) contributes to L2 learners’ and language professionals’ perceptions of task difficulty (TD). This study was conducted to allow a deeper investigation of the extent to which manipulating TC can influence perceptions of TD, what TC-factors contribute to perceptions of TD, and whether there is a perceptual match between L2 learners and language professionals. The study employed a mixed-method design in which 68 students and 26 language professionals evaluated the TD of two video-based narrative tasks. The students, who were L2 learners of English at a Jordanian secondary school, performed two tasks with increased TC manipulated by intentional reasoning (IR) demands. Data on learners’ perceptions of TD were collected qualitatively and quantitatively using a retrospective questionnaire. The language professionals, who were researchers with a TESOL background, read the tasks instructions and watched the two clips before deciding which task would be considered more difficult and why. Results showed a match between learners and language professionals on their perceptions of TD. Both groups rated the more complex task (+IR) as more difficult. Two categories of higher cognitive demands imposed by IR requirement, i.e. task-induced and task-inherent, were found to be the major contributors to the perceptions of TD. The findings have significant implications for the development of an index of TD, which is considered a priority for language teaching, testing and syllabus design.

Assessing the Phonological Abilities of Jordanian Arabic-speaking Children with Phonological Disorders

Anas al Huneety,Moh’d Ahmad Khaled Al-omari,Bassil Mashaqba,Mohammed Nour Abu Guba,Anas al Huneety 한국언어청각임상학회 2024 Communication Sciences and Disorders Vol.29 No.1

Objectives: This study investigated the validity of four language measures, i.e., phonological mean length of utterance (PMLU), the proportion of whole-word proximity (PWP), the proportion of whole-word correctness (PWC), and percentage of correct consonants, in assessing phonological development in Jordanian Arabic (JA) speaking children with phonological disorders in comparison with typically developing (TD) children. Methods: The study involved 88 monolingual JA-speaking children within the age range of 5 to 6 years, with 44 children diagnosed with phonological disorders and 44 TD children. Each group was further categorized into two age groups, namely 5;0-5;6 and 5,7-6,0. Data were gathered by observing the interactions between the children and their caregivers or parents using age-appropriate toys. A minimum of 100 utterances were collected from each participant. Results: The study found that TD children performed better than the children with phonological disorders on all measures, indicating delayed phonological performance in the phonological disorders group. Positive correlations between the measures were also observed, indicating their ability to provide significant information about children’s phonological abilities. Specific speech sound errors and substitution patterns exhibited by children with phonological disorders were identified, highlighting the motor control and articulatory challenges experienced by this group. Age was found to be a significant factor in the development of TD children, while children with phonological disorders showed similar scores across different age groups. Conclusion: These findings support the usage of the four measures for understanding phonological development in children with phonological disorders, accurately diagnosing them and tracking their progress.

Various Structural Approaches to Analyze an Aircraft with High Aspect Ratio Wings

Anas El Arras(엘 아라스),Chan Hoon Chung(정찬훈),Young-Ho Na(나영호),SangJoon Shin(신상준) 한국항공우주학회 2011 한국항공우주학회 학술발표회 논문집 Vol.2011 No.11

This paper presents an aeroelastic analysis of an air vehicle with high aspect ratio wings. The first approach emphasizes on the nonlinear behaviors of the wings and the unsteady subsonic aerodynamic forces acting on it. Besides, the second approach uses a one dimensional, Euler-Bernoulli, linear beam. The structural analysis results obtained from both beam models are validated with the 3-D NASTRAN finite elements model. The present model considers two control surfaces and has a taper ratio of 0.5, 21 ribs, and 3 spars. The structural mode shapes and natural frequencies are applied for both the linear and non-linear beams, and then the aerodynamic force is obtained and is compared with the unsteady aerodynamic force that comes from the 3-D model. The forces are obtained using ZAERO and then used to perform the flutter analysis.