178 research outputs found
INDIVIDUALISME FAISAL TEHRANI DALAM KEPENGARANGAN BERDASARKAN NOVEL-NOVEL TERPILIH
No full textFaisal Tehrani antara pengarang generasi baharu yang prolifik dan aktif berkarya sehingga kini. Karya-karya yang dihasilkannya menunjukkan kelainan tersendiri dari aspek tekstual dan kontekstual seiring dengan perubahan aliran, tema, persoalan dan pemikiran yang menjadi pegangan dalam menghasilkan karyanya. Sehubungan dengan itu, kajian ini bertujuan untuk menganalisis pembinaan jati diri beliau dalam novel-novel terpilihnya. Sepanjang berkarya, beliau menghasilkan novel remaja dan novel dewasa bagi menyampaikan pemikiran, persoalan, permasalahan, mesej dan sebagainya dengan berkesan. Sebanyak lima buah novel akan ditelusuri, iaitu Perempuan Politikus Melayu, 1515, 1511H[Kombat], SsPJ, Tunggu Teduh Dulu dan Bahlut. Kajian ini menggunakan metodologi kualitatif yang melibatkan pembacaan rapi dan pentafsiran sumber bertulis. Bagi menganalisis pembinaan jati diri, Teori Teksdealisme digunakan sebagai landasan kajian. Dalam Teori Teksdealisme telah mengemukakan prinsip individualisme atau keperibadian untuk mengesan keupayaan seseorang pengarang untuk membina jati diri atau keperibadiannya. Bagi mengesan pembinaan individualisme tersebut, prinsip ini telah mengemukakan empat unsur yang diterokai, iaitu subjektiviti, stail individu, reka cipta individu dan tindakan individu. Semua unsur tersebut dianalisis secara tekstual dan konstektual berdasarkan tujuan dan persoalan kajian yang ditetapkan. Kajian mendapati bahawa Faisal Tehrani berusaha untuk membina dan menampilkan jati diri kepengarangannya melalui subjektiviti, stail individu, reka cipta individu dan tindakan individu. Keupayaan membina individualisme ini akan mengukuhkan kedudukan serta ketokohan beliau sebagai pengarang yang memiliki ciri-ciri keunggulan kerana mempunyai ideologi, kreativiti, sensitiviti dan matlamat tersendiri dalam menghasilkan novel-novelnya.
Faisal Tehrani is among the new generation of prolific and active authors today. His works show distinct uniqueness in the textual and contextual aspects in terms of the changes in the flow, themes, problems and thoughts that come into being in producing his works. Accordingly, this study aims to analyze the development of his identity in his selected novels. Throughout his creative production, he has produced various teen and mature novels to effectively communicate his ideas, questions, problems, messages, etc. A total of five novels was studied, namely Perempuan Politikus Melayu, 1515, 1511H [Kombat], SsPJ, Tunggu Teduh Dulu and Bahlut. This study will apply a qualitative methodology involving intensive reading and interpretation of written sources. To analyze the development of identity, the texdialism theory will be used as the basis of the study. The Texdialism Theory puts forward the principles of individualism or individuality to detect the ability of an author to build his identity or personality. To track the construction of the individualism, this approach presented four exploratory elements, namely subjectivity, individual style, individual inventor and individual action. All of these elements will be analysed textually and consistently based on the objectives and questions of the study. The study found that Faisal Tehrani sought to build and display his identity through subjectivity, individual styles, individual inventions and individual actions. The ability to build this individualism will reinforce his position as an author who has the characteristics of excellence because of his ideology, creativity, sensitivity and purpose in producing his novels
Investigating speech tempo, speaking rate, and the related factors in the iranian elderly women talking with tehrani and semnani accents
No full textBackground: Some variables, such as age, gender, regional and dialectical differences influence speech tempo. Men and younger individuals speak faster than women and the elderly. Therefore, these variations should be considered when assessing speaking rate. Objectives: Since different accents influence speaking rates and there is no previous study investigated speech tempo with respect to regional and accent differences in Iran, and given that the elderly are more prone to problems influencing speaking rate, the present study was done to compare speech tempo and speaking rate in two different accents, namely Tehrani and Semnani, and to investigate some related factors. Methods: This cross-sectional study was performed on 200 elderly women selected via convenience sampling method. Speech tempo, speaking rate, verbal fluency, and cognition scores were compared using an independent-samples t-test. Pearson�s correlation coefficient test was used to assess correlations between speaking rate and level of education, Montreal cognitive assessment (MoCA), and verbal fluency scores. Results: No significant difference was found in speech tempo between the studied accents (P = 0.13). Speaking rate was significantly slower in the Tehrani accent than the Semnani one (P = 0.04). The Tehrani elderly obtained significantly less scores in verbal fluency and MoCA ((P � 0.001) and (P = 0.04), respectively. In both groups, speaking rate had a significant correlation with verbal fluency and MoCA scores but not with level of education. Conclusions: Although, our results showed no difference in speech tempo between the studied accents, the Tehrani elderly unexpectedly spoke more slowly meaning that they paused more while speaking. There was a relationship between faster speaking, better verbal fluency, and cognitive performance. © 2021, Author(s)
The influence of ferrite volume fraction on Rayleigh wave propagation in A572 grade 50 steel
No full textUsing datasets from industrial control systems for cyber security research and education
No full textThe availability of high-quality benchmark datasets is an important prerequisite for research and education in the cyber security domain. Datasets from realistic systems offer a platform for researchers to develop and test novel models and algorithms. Such datasets also offer students opportunities for active and project-centric learning. In this paper, we describe six publicly available datasets from the domain of Industrial Control Systems (ICS). Five of these datasets are obtained through experiments conducted in the context of operational ICS while the sixth is obtained from a widely used simulation tool, namely EPANET, for large scale water distribution networks. This paper presents two studies on the use of the datasets. The first study uses the dataset from a live water treatment plant. This study leads to a novel and explainable anomaly detection method based upon Timed Automata and Bayesian Networks. The study conducted in the context of education made use of the water distribution network dataset in a graduate course on cyber data analytics. Through an assignment, students explored the effectiveness of various methods for anomaly detection. Research outcomes and the success of the course indicate an appreciation in the research community and positive learning experience in education.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Cyber SecurityNetwork Architectures and Service
An Investigation of Pragmatic Functions and Position of Prevalent Persian Discourse Markers Used in Casual Conversations among Tehrani Speakers
No full textGiven that a systematic treatment of Persian Discourse Markers (hereafter DMs) is almost absent in modern Persian linguistics and to bridge this gap, the audio-recorded data comprising 14 face to face casual conversations involving two-party and multi-party interactions among family members, acquaintances and close friends are used to shed light on these ‘frequently used’ but ‘frequently unnoticed’ linguistic elements. To document a list of the most common DMs typically used in Tehrani dialect of Persian language and to have a detailed description of their discoursal functions in talk, Brinton’s (1996) binary classification of DMs functions (textual and interpersonal) was developed to provide an empirically-supported account of the functions and position of Persian DMs in interaction among Tehrani speakers. The present account of DMs which is basically ‘analytical description’ provides the reader with the knowledge about how Persian DMs operate in actual usage. The findings are built upon a 3105-word corpus including 14 audio-recorded conversations among 50 participants. Altogether 34 tokens of Persian DMs with an overall 254 occurrences were identified among which na/na baba (no/no daddy) with the total of 33 (12.84%) occurrences were the most frequently used Persian DM in the data which are followed by dige (no English equivalent), aare/ba’ale (yep/yes), yani (I mean), vali (but), haalaa/ alaan (now), bebin/nega kon (look) and aslan (by no means/ never).To the author, research on the functions and distributional patterns of Persian DMs will broaden our knowledge of their discoursal behavior in language in general and contribute to the already growing cross-linguistic body of work on DMs.
Microstructural Characterization and Damage Detection in Steels with Linear and Nonlinear Ultrasonic Test
No full textThe objective of this research is to study the potential of using nonlinear ultrasonic testing (NLUT) to detect damage early due to mechanical deformation or creep, as well as using it as a mean to assess microstructure changes. A comparison is also undertaken between the sensitivity of the NLUT (using nonlinearity parameter and acoustoelastic constant) and linear ultrasonic testing (LUT) technique (using wave velocity), for each damage type and microstructure assessment.
This investigation consists of three different parts. In the first part of the investigation, assessment of the mechanical damage in a single-phase metal, Al-1100, was conducted to associate the strain directly with the NLUT and LUT parameters. In the second part, both NDE techniques were correlated with changes in the microstructure of the alloy after heat treatments; an A572 steel was intercritically annealed at different temperatures to generate different volume fractions of ferrite and martensite. In the third part of this study AISI 410 stainless steel specimens were submitted to different levels of creep; such damage includes both mechanical straining and microstructure changes due to exposures to different creep times and total strains.
The results showed that the NLUT has the potential to detect the most minute changes in the microstructure with a sensitivity about 150 times more effective than LUT. However, using the LUT methods can still be beneficial in mapping the localized damage especially with the immersion techniques such as Scanning Acoustic Microscope. In the case of mechanical damage, the NLUT showed a continuous increase or decrease depending on the damage. For the case of creep damage assessment more work is needed to interpret the results due to the complexity of this type of damage due to mechanical and microstructural changes that occur simultaneously. There needs to be caution when interpreting the results since several factors are influential, particularly the initial condition of the component before service
The Association of Transcript Levels of Proinflammatory Cytokines in Adipose Tissues with Various Adiposity Indices in Women with Obesity
No full textBackground and Aim: To investigate the association of adipose tissue transcript levels of IL-1β, IL-6, TNF-α, and MCP-1 with various adiposity indices in obese women.
Methods: Real-time PCR was carry out to investigate the mRNA expression level of the mentioned genes in VAT and SAT from all participants.
Results: The results presented higher mRNA levels of IL-6 and MCP-1 in SAT and VAT of obese women, compared to normal-weight women. As well, results showed a positive correlation of IL-6 and MCP-1 with HOMA-IR. Obesity indices including BMI, hip, and WHtR were considerably higher in the obese group in comparison with the control group. More importantly, we observed a positive correlation of mRNA expression of these pro-inflammatory factors in adipose tissues with some obesity indices.
Conclusion: We have shown here that adipose tissue transcript levels of pro-inflammatory cytokines were significantly higher in obese participate than non-obese participants. In obese individuals, this proinflammatory molecules was significantly correlated with various obesity indices. These results suggest that targeting obesity and adipose tissue could prevent the high expression of cytokine.
*Corresponding Author: Dr. Mehrnoosh Shanaki; Email: [email protected]
Please cite this article as: Aliabadi M, Samavarchi Tehrani S, Shanaki M. The Association of Transcript Levels of Proinflammatory Cytokines in Adipose Tissues with Various Adiposity Indices in Women with Obesity. Arch Med Lab Sci. 2022;8:1-10 (e1). https://doi.org/10.22037/amls.v8.3594
Fast Frequency and Time Domain Integral Equation Modelling for Marine CSEM Applications
No full textIn this study we developed algorithms for fast frequency and time domain integral equation modelling for marine controlled-source electromagnetic (CSEM) applications. Solutions of integral equations for CSEM applications in a three-layered earth with an assumed reservoirs is examined using the conjugate gradient fast Fourier transformation (CG-FFT) method, which is used as a reference. For 3D configurations fast computational methods are relevant for both forward and inverse modelling studies. The Born approximation, extended Born approximation, and iterative extended Born approximation are implemented and compared with the full solution of the CG-FFT, even with a reservoir consisting of two separated compartments. We also showed that the approximate results are accurate at the receiver level, which is usually the sea bottom, and inside the reservoir. This iterative method is suitable as a modelling algorithm for solving the inverse scattering problem as well. These methods are based on an electric field domain integral equation formulation. With the help of this method sensitivity analysis using 3D modelling is possible in a timely manner, which is vital for CSEM applications. Our modelling studies investigate to which extent the iterative extended Born approximation method is fast and accurate for forward modelling and could be used for inverse modelling. Sensitivity analysis as a function of the source position and different reservoir sizes validates the accuracy of the iterative extended Born approximation. We also looked into the question in what model configurations two-and-a-half dimensional modelling is a good modelling choice for three-dimensional reservoir response to the diffusive EM field. It is investigated how the accuracy of 2.5D modelling compares with 3D modelling depending on the configurations. Because 2.5D modelling is much faster than 3D modelling, proper use of 2.5D CSEM modelling provides sensitivity analysis of subsurface parameters for many different scenarios in a limited amount of time. Depending on size and depth of the target, hydrocarbon thickness, and extension in cross-line dimension, the required frequency content of the emitted diffusive field and the number of offsets must be determined to assess if the target can be detected. At this stage a decision can be made on whether or not the target reservoir is detectable. From here an optimum survey can be designed based on the forward modelling results. Similarly, in this way the detectability from time-lapse monitoring data of changes in the reservoir due to production can be assessed. Finally we investigated how frequency-domain data can be efficiently transformed to the time-domain. CSEM methods are generally divided into frequency-domain electromagnetic (FDEM) and time-domain (transient) electromagnetic (TDEM) methods, depending on the waveform of the transmitted electrical current. We compared a quasi-analytical method to transform frequency-domain CSEM data back to the time-domain with a numerical transformation. The quasi-analytical method exploits the fact that the kernel of the integral equation has a known behavior as a function of frequency and that the solution to the integral equation can be written as a sum of repeated applications of the kernel to the incident field. A set of expansion functions is found, which have analytically known time domain counterparts, which need only a limited number of frequency values for the transformation back to time. We compared this quasi-analytical method, coined the Diffusive Expansion Method in CSEM applications with two other numerical methods, Gaver-Stehfest method and an optimized form of the fast Fourier transformation method where the data is required at an minimum number of discrete frequency values such that the data at intermediate frequency values can be accurately obtained by interpolation. We found that the Diffusion Expansion Method is a good candidate for CSEM frequency-to-time conversion of data for any kind of subsurface model and survey configuration.Geoscience & EngineeringCivil Engineering and Geoscience
Peganum harmala L.'s anti-growth effect on a breast cancer cell line
No full textThis research was done to evaluate the induction of apoptosis in MDA-MB-231 breast cancer cell line by Peganum harmala's extract, in which a significant amount of β-carbolines is included. The apoptosis incidence was assessed through Annexin-V-Flous kit. The expressions of genes through which intrinsic apoptosis pathway are involved, Bax, Bcl-2, Bid, and Puma, over the genes the expressions of which are linked to extrinsic apoptosis pathway, TRAIL, Caspase8, p21, and p53, were examined by RT-PCR and Real-time PCR. The results demonstrate that the extract decreases the growth rate of the cancer cell line through inducing apoptosis mechanism. As long as the expression of anti-apoptosis Bcl-2 gen reduced dramatically, an over-expression in Bax and Puma genes was monitored indicating activation of intrinsic apoptosis pathway. A notable over-expression observed with TRAIL and Caspase8 genes as well as Bid gene. The latter is an intermediate for both intrinsic and extrinsic pathways of apoptosis. © 2015 The Author
Negative Indirect Network Effects: How can a subsidiary product create a second standard in the Microsoft Windows vs. Apple Mac OS market?
No full textNew technologies create a network of complementary producers and consumers around themselves. Researchers have been investigating the effects of such networks on end-users and called them “Network Externalities”. These network externalities are either direct or indirect. There have been no prior researches on negative and indirect consequences of these networks. The aim of this paper is to observe negative effects of the network on the market from both macro and micro level. Therefore, our main research question is: “Does expansion of network lead to Negative Indirect Network Effects?” The objectives of the present research were to investigate the nature of the network and to acquire more insight into the causes of Negative Indirect Network Effects (NINE) and their impact on network growth, to develop an empirical model for it, and simulate this model in order to have a better understanding of underlying network dynamics. The focus of the present research was on the laptop operation system network. To start with, we reviewed different aspects of this particular network in order to reform a new conceptual model about consumers’ behaviour. Then, we studied three major operating systems (OS) existing in the market today (Windows, Mac OS, and Linux). First, we reconstructed the history of these technologies, their life cycle, network characteristics, network size, and then, we continued with a short history of unwanted complementary products like bugs, viruses, worms, and malware. We surveyed user attitudes for the two main operating systems, Windows vs. Mac OS, and used those insights to make an agent-based simulation derived from our empirical model and mathematical equation. This simulation was applied to different scenarios. Specifically, we found that a network becomes more attractive for unwanted complementary goods when it expands in size. Also, we discovered that an increase in problems for the dominant design will lead to NINE. Importantly, security measures play an important role in the satisfaction of end-users. When users distrust security measures of the dominant technology, they may decide to switch to a smaller and saver network, and create herd behaviour in NINE, leading other end-users or even new consumers to choose for the secondary technology. However, expansion of the secondary design could also attract unwanted actors in its network and same procedure would emerge for the secondary technology as well. Our model is able to explain this recursive S-curve mechanism. Therefore, the present research provides additional understanding for industries to implement dynamic strategies in order concern to NINE. That is, security is important and industries have to be conscious about it and maintain safety measures with the intention of preventing NINE to happen. But also, industries must be aware that end-users should be involved in the feedback process.Management of TechnologyTechnology, Strategy, and EntrepreneurshipTechnology, Policy and Managemen
- …
