Showing 170 results for Lu
Volume 0, Issue 0 (Articles accepted at the time of publication 2024)
Abstract
Abstract
Examining the meaning of a word with the approach of cognitive semantics, through the radial network, analyzes the change of the meaning of the word in different contexts in the form of a systematic pattern. In this view, the word has a central meaning, which is also seen in the secondary concepts. Based on this, the secondary meanings that are proposed for the word are somehow tied with the central meaning and a semantic network is formed. Due to the fact that this theory can explain the semantic development of the word and clarify how they came about, we decided to use it to explain the semantic network of zikr in the Qur'an with a descriptive and analytical method. Dealing with the word zikr according to this theory leads us to the following conclusions: The linguistic remembrance of Allah along with the presence of the heart is the central meaning of the word zikr. This meaning is the central core of the coherent semantic network, which consists of six radial meanings based on the first meaning.
Volume 0, Issue 0 (Articles accepted at the time of publication 2024)
Abstract
This study investigates the potential of interactive English as a Foreign Language (EFL) learning tools powered by Artificial Intelligence (AI) to enhance digital competence among higher education students. The primary aim is to detail the learning process in several aspects: Interactive EFL Learning Based on AI, its impact and implications, and Students' Digital Competence. The research employs a qualitative approach, utilizing qualitative interviews and classroom observation. A sample of 80 students from three different universities participated in using AI-powered EFL tools (ChatGPT) over a semester. The study employed intervention assessments to measure changes in digital competence and English writing proficiency. Additionally, student feedback was collected through structured interviews and observation to explore their experiences and perceptions. The collected data were processed and analyzed using manual coding techniques by compiling every response and organizing the summary.The results indicate that AI-based EFL tools significantly improve students' digital competence, including their ability to use technology effectively for writing tasks. Students demonstrated enhanced engagement, better language skills, and increased confidence in using digital tools for academic purposes. However, challenges such as technological anxiety and varying levels of tool effectiveness were also identified. This study highlights AI's efficacy in enhancing digital competence within the EFL environment, adding to the expanding corpus of research on the topic. The results offer important insights for educators and policymakers aiming to improve English language education using innovative AI-based approaches.
Volume 0, Issue 0 (ARTICLES IN PRESS 2024)
Abstract
Ganoderma boninense Pat. is a persistent soil-borne pathogen that causes significant losses in oil palm (Elaeis guineensis Pat.) productivity. In this study, we evaluated the antifungal activity of volatile organic compounds (VOCs) produced by a fungal isolate, later identified as Paraconiothyrium archidendri F10, against G. boninense. The isolate was identified based on ITS-rDNA sequence analysis and BLASTn results. VOCs produced by P. archidendri F10 were found to inhibit G. boninense mycelium growth by up to 55.8% in four days, with the mycelium exhibiting wavy, non-smooth, and wrinkled morphology, abnormal branching, fused, defective hyphae, and lysis from within. The major VOC components were esters, with 7,9-ditert-butyl-1-oxaspiro[4.5]deca-6,9-diene-2,8-dione being the most abundant (16.72%). The other top-ranking components were 2-O-(6-ethyloctan-3-yl) 1-O-hexyl oxalate (8.71%), methyl heptadecanoate (8.66%), and butyl acetate (5.66%), with minor components comprising less than 5% of the total VOCs. Our findings suggest that P. archidendri F10 has potential as a biofungicide for controlling G. boninense in the field.
Volume 0, Issue 0 (ARTICLES IN PRESS 2024)
Abstract
Bacterial leaf blight (BLB) is one of the most devastating diseases of rice (Oryza sativa L.), causing substantial yield losses and posing a serious threat to food and livelihood security across rice-dependent regions of Asia and Africa. In this study, 71 rice genotypes developed through crosses among elite and improved lines, were evaluated for bacterial leaf blight (BLB) resistance using artificial clip inoculation at maximum tillering stage, with resistant (Improved Samba Mahsuri) and susceptible (Taichung Native-1, Krishnaveni) checks, under field conditions at Bapatla and Maruteru, Andhra Pradesh, India. Phenotypic screening identified nine genotypes exhibiting disease reaction towards resistance (disease scores 1–3) at both sites. Molecular screening for five BLB resistance (R) genes, Xa21, xa13, xa5, Xa4, and Xa2, revealed BPT-3170 carried four R genes (xa13+xa5+Xa4+Xa2), while eight genotypes had two genes, and 30 genotypes carried one gene. Phylogenetic analysis using 14 R gene-linked markers grouped the genotypes into three major clusters. BPT-3170 exhibited phenotypic resistance along with multiple R genes, indicating its potential to confer broad spectrum resistance and can serve as a valuable donor in BLB resistance breeding. The study also revealed the breakdown of single-gene resistance and low frequencies of xa5, xa13, and Xa21. These findings highlight the importance of pyramiding multiple R genes to achieve durable resistance against BLB.
Volume 1, Issue 1 ((Articles in Persian) 2010)
Abstract
Volume 1, Issue 1 (4-2013)
Abstract
Comparative literature is a branch of literature that considers the literary relation and influences of the countries. Scholar of comparative literature sits between two or more branches and records the literary-cultural transfers. This article is an attempt to study the cultural and story similarities between two the literary works; an Iranian and a French. "Leili o Majnoun", Nezami’s literary work and "Cyrano de Bergerac", Rostand’s piece have commons aspects about the content and the personality of their heroes; platonic love is the most important element in these literary works. Among the other similarities, we can represent the reality of their stories and the common literary structure. In spite of the similarities, we should consider the differences of the heroes in their manner of love-affair. An innocent love is another common point between these masterpieces, which finished with the death of heroes, Majnoun and Cyrano. In this article, we try to expand these similarities and the differences with a comparative consideration in order to conquer a new horizon.
Volume 1, Issue 1 (Winter 2023)
Abstract
Rice farmers in the study area as elsewhere in some developing parts of the world have been negatively affected by floods annually. There have been several solutions, some suggested and others implemented to mitigate the effect of these floods on the farmers. Different initiatives have been undertaken by various stakeholders in the food production chain. Providing a multidimensional approach to highlighting these initiatives is essential to an effective and efficient resolution. The prospects and challenges of incorporating technology, capacity development, business and government support have been evaluated. The solutions proposed in this paper would bring economic benefits to the rice farmers, private companies, and government, leading to the attainment of Sustainable Development Goal (SDG) 2- Zero Hunger and the other 16 SDGs.
Volume 1, Issue 2 (7-2014)
Abstract
Background: Asthma is the main reason of disability, health resource exploitation and low quality of life for those who are affected. It is estimated that nearly 300 million people in the world are suffering from asthma. Studies have identified 18 genomic regions and more than 100 genes associated with asthma. Among these candidate genes, IL-17F plays a very interesting role in asthma. This study was conducted to predict the conformational and functional impact of asthma-associated IL-17F polymorphisms on protein product of the corresponding gene using Phyre2, PolyPhen2 and SIFT softwares. Methods: In the present study, 10 significant missense SNPs (rs763780, rs144576902, rs11465553, rs368500268, rs141798304, rs2397084, rs146083682, rs200163061, rs376671742, and rs373228601) were taken from Ensembl Genome Browser database. Polymorphism-induced protein structural changes were predicted using Protein Homology analogY Recognition Engine V2.0 (PHYRE2) program. The possible impact of an amino acid substitution on the function of protein was analyzed using PolyPhen-2 (Polymorphism Phenotyping Version2) and SIFT (Sorting Intolerant From Tolerant) tools. Results: The analysis revealed mutant proteins having structural changes in the number of atoms, H-bonds, turns and helices. While wild copy has 82 H-bonds, 5 helices and 20 turns, the mutant types show considerable changes. At functional level also, substantial changes were observed between the wild protein and the mutant one. Conclusion: A single nucleotide polymorphism in the gene sequence can lead to the substantial structural and functional variations in the protein product of the gene, a process that may account for etiology of a number of complex diseases including asthma.
Volume 1, Issue 2 (12-2015)
Abstract
A survey was conducted in fields of cucumber and watermelon in Bengaluru, India during April 2014 for dertermination of the common parasitoids (Hym.,Braconidae, Aphidiinae) attacking melon aphid, Aphis gossypii Glover (Hemi., Aphididae). Three species of Aphidiinae, including Aphidius platensis Brethes, 1913; Binodoxy sacalephae (Marshall, 1896) and Lipolexis oregmae(Gahan, 1931) were collected and identified, from which Aphidius platensis is newly recorded from India. The early evidence of Aphidius colemani in India can also be contributed to A. platensis. Diagnostic characters of three species with closely related species are briefly discussed.
Volume 2, Issue 3 (Spring & Summer 2016)
Abstract
The true understanding of a word requires using the different semantic methods so that through them, the exact description of that word can be found. One of these methods is sense relations such as semantic opposition. The purpose of this article is to study semantic opposition in Quran. For this work, 106 opposite word pairs have been extracted and gathered from different sources especially “Tafsire Noor” by Mostafa Khorram-del with their frequency and verses in which they have used and then have been analyzed according to six types of semantic oppositions agreed by linguists. For the reason of the limited size of the article, mentioning all these word pairs was refrained and several instances have been mentioned for every type of semantic opposition. Studying and analyzing data indicates that the six types of semantic opposition, that is gradable, complementary, symmetrical, directional, lexical, and semantic contrast are found in Quran and gradable, complementary, symmetrical, lexical, semantic contrast, and directional ones have the most and least frequency respectively. In some cases, there is overlap among these oppositions. The use of semantic opposition can be effective in the true translation of Quran words. The issue of most of these oppositions is human and his moral and educational affairs.
Volume 3, Issue 1 (8-2011)
Abstract
Public sphere and social ethics are always among the basic topics of sociology discussions. The main hypothesis of this study is that «action in the public sphere» is an effective factor on increasing the experience of shame as social ethics. For examining the relationship between these two, Hannah Arendt's «Public sphere theory» and Morris Rosenberg's «Reflective evaluation» principles were used. The model considered in this study includes freedom belief, plurality, private self-disclosure and public self-disclosure, which are participated as effective variables (in two forms: directed and indirected) on the experience of shame. Statistical population of this study includes the students of Tehran University at undergraduate, graduate and PhD degrees. 400 of them were selected by quota sampling for responding using proportional size method. The required data were collected using survey and questionnaire methods. The results of statistical analysis showed that students' public self-disclosure, freedom belief, plurality, gender and education degree have significant impacts on the experience of shame as social ethics. Only the significant effect of private self-disclosure was not confirmed statistically.
Volume 3, Issue 1 ((Articles in Persian) 2012)
Abstract
Digemination is a phonological process, which is found in some languages like Persian. Since historical surveys implied languages’ tendency to this phenomenon and, it has not been to date studied systematically in Persian, so the purpose of the present research is to introduce this phenomenon and provide some information about its characteristics. In this paper, the relation between digemination and gemination with other rules like assimilation, lenition, fortition, compensatory lengthening was investigated. The research is based on corpus consisting of 12000 data from 33 Iranian dialects gathered from dialectology books and papers. In addition to qualitative analysis, the quantitative calculation of the features frequency has been used as well. In sum, the results illustrated that: 1- digemination behaves versus gemination; 2- compensatory lengthening and insertion are the most frequent rules related to digemination; 3- digemination causes other phonological processes and 4- different classes of consonants show different behavior toward gemination as liquid> stop> nasal> glide, and this direction is versus in digemination.
Volume 3, Issue 3 ((Articles in Persian) 2012)
Abstract
Derivation is a process in which adding a derivational affix leads to formation of a new word. This process has been studied by linguists for many years and mainly seen as a morphologic or morphosyntactic process. Productivity of a derivational affix (the number of new words formed by a derivational affix) is a prominent factor while considering the derivation process. Phonological and morphophonemic factors may also play role in the ratio of the productivity of an affix. This paper studies the impact of syllable structure on the productivity of verbal derivational suffixes in Persian language. The results showed that there is a close relation between the syllable structure and the productivity of the verbal suffix derivational suffixes in Persian, all of them have a vowel in their initial syllable position. As a result, we can conclude that initiation with a vowel can be considered as a productivity factor of a derivational suffix in Persian. The study of the nucleus of the syllables also showed that the two front vowels of [a, e] are the most frequent vowels of these suffixes as nucleus. Consequently, it is concluded that phonological factors, especially syllable structure of a derivational suffix, play an indispensable role in its productivity
Volume 3, Issue 4 ((Articles in Persian) 2012)
Abstract
Although linguists have been studying the “News” as a type of text for a long period of time, the researches have been mainly of the product-oriented types, which purely analyze the news texts and their linguistic characteristics. Linguists and media researchers have been mainly keen to determine sets of criteria known as “News Values” so far, and the result is various lists of media and linguistic news selection norms. The goal of this article is finding answer for the following questions: How news production process can be orchestrated in a linguistic model? What are the linguistic news values? and How these linguistic values correlate with other selection criteria? In addition to revisiting the theoretical notion of “News Values” and introducing the “Grice Maxims” as the linguistic criteria of news composition, this paper, as a descriptive analytical study based on field work, also represents the multi-level model of news composition and selection based on linguistically oriented findings. The mentioned model not only determines and explains different levels of news composition and selection process from the event to the news, but also puts the role of macro-structural elements of news discourse production such as ideology, relations of power and composition in the center of attention.
Volume 4, Issue 1 (No.1 (Tome 13), (Articles in Persian) 2013)
Abstract
The aim of this article is to study the phonological processes of Bala-Gueriveh Luri in Khoram Abad (Lurestan, Iran) and to compare these processes with those of Standard Persian. The data were collected through a four-hour interview with four Lur informants. Furthermore, one of the authors is a native speaker of this dialect. The data were transcribed according to the International Phonetic Alphabet and analyzed descriptively. The phonological processes studied here are: consonantal processes such as assimilation, dissimilation, neutralization, lenition, elision and metathesis. In this dialect, lenition and elision are more active than other processes.
Volume 4, Issue 1 (3-2015)
Abstract
Symptoms of the leaf scorch disease on the leaves of oleander infected by Xylella fastidiosa appearing for the first time in Lebanon were confirmed by ELISA tests and anatomical observations of sections of petioles by a scanning electron microscope. Xylella fastidiosa was detected in the xylem forming bacterial aggregates in the lumen of tracheary elements. The bacterium colonizes and invades the conducting tissues degrading pit membranes (PMs) of tracheary elements. Dense networks of fibrillar material and tyloses, originating from the plant, as a defense mechanism form around the bacterial aggregates to limit the movement of the pathogen. The bacterial aggregates that plug the tracheary elements and the tyloses produced by the infected oleander plants cause water stress and consequently leaf scorch symptoms. To the best of our knowledge, this is the first report of Xylella fastidiosa in Lebanon.
Volume 4, Issue 2 (summer 2023)
Abstract
Problem: Structure is a term that creates meaning for the framework of formation of different shapes and is able to create targeted condition for formation and even interference for shapes.
Target: It is to be noted that this process of formation of shapes is based on defined module and this module is regarded as infrastructure for layout of shapes and is accompanied with social exchanges, activities and equilibrium; since, if a space has great amount of quality and eligibility, it is able to attract more amount of people and turned into a place for gathering social groups and collecting social groups based on different layers of social classes is effective on geometrical structure of a complex and is also regarded as basis for formation of merged geometrical principles in general structure of a shape; since, if this principle is not correctly regarded as equilibrium, the motion system of different classes are not directed toward correct path and finally leads to interference of motion layer, lack of eligibility and localization of space.
Method: Thus, it is attempted through benefiting from interpretative and historical nature to geometrically analyze this set and describe its elementary structure as intact form and then by benefiting from deductive reasoning to describe details of this set from viewpoint of general structure and due to analytical tables, it is possible to obtain better understanding from relationship of geometrical system with structure of set and in continuation of this process, through raising hypothesis (probably formalism by Klaus Herdeg).
Result: It is possible to obtain conformity of geometrical pattern originated from structure of this set and recognizing groups obtained from conformity of motor structure of layers in Naghshe Jahan square that is effective on political and economic issues of this set.
Volume 4, Issue 3 (9-2015)
Abstract
New sources of maize resistance to the maize weevil, Sitophilus zeamais infestation are indispensable in successful breeding programs against post harvest grain damage. The study investigated the characters and mechanisms that confer resistance to weevil infestation using twenty elite maize genotypes. Detailed morphological and physical studies were conducted on whole-maize grain. The grain hull was separated from the whole-maize grain with a locally-fabricated machine and subjected to chemical analysis. Resistance was assessed at 33 days post infestation using weevil mortality, weevil survival, percent grain damage, weight of grain powder, percent weight loss and oviposition as indices rated on a scale developed by the present study. The resistant genotypes identified, particularly 2000SYNEE-WSTR and TZBRELD3C5 with very high degree of resistance should be used singly or best in an integrated pest management system for the control of S. zeamais infestation in stored maize. Though increases in the physical properties of grain hardness, weight, length and width increased varietal resistance, it was found that the bases of resistance were increased chemical attributes of phenolic acid, trypsin inhibitor and crude fiber while the bases of susceptibility were increased protein and starch. Characters that conferred resistance on the tested genotypes were found in the grain hull. The study identified antibiosis and antixenosis as the mechanisms of maize post harvest resistance to S. zeamais infestation.
Volume 4, Issue 5 (Supplementary Issue - 2015)
Abstract
The effects of Clerodendrum capitatum (Willd.) and Phyllanthus fraternus (Webster) powders were evaluatedin reducing Callosobruchus maculatus (F.) and Sitophilus zeamais (L.) adult emergence and cowpea and maize seed damage under laboratory conditions. The dried and powdered plant leaves were tested against the virgin weevils by exposing ten unsexed adults to concentration levels of 0, 500, 1000, 1500 and 2000 mg/kg of seeds in three replications. Results obtained showed that the plant powders did not cause significant adult mortality of either of the insects but, significant reductions were recorded in terms of weight loss, seed damage, adult emergence and number of exit holes in maize. The plant powders showed great potentials for use as plant derived insecticides for controlling C. maculatus and S. zeamais in stored seeds.
Volume 4, Issue 13 (Spring 2011)
Abstract
According to the usual definitions of ambiguity and amphiboly in rhetorics, the origin of amphiboly and ambiguity lies in polysemic words and position and intention of the speaker are the distinctive factors in the respect. Questioning this distinction, co-text is introduced as the criterion of differentiating amphiboly from ambiguity and as a result of such discussion a definition is formed which is the base of the arguments of this paper. The concept of multiple signification is considered equal to the application of polysemic words and the stability of semantic ambiguity resulting from multiple signification, is considered as the required condition of considering a case as amphiboly. In search of the possibility of amphiboly in theater de-contextualization of situational contexts, possibility of negation of various signifieds in any of semiotic systems in theater and impossibility of formation of various signifieds in the mind are considered to be the limiting factors.