Showing 95 results for Ardi
Volume 0, Issue 0 (Articles accepted at the time of publication 2024)
Abstract
The turning increasingly of educational centers to Virtual and online classes shows necessity of paying attention to the quality of training and deep and meaningful learning using modern educational methods in this type of training.This study aims to investigate the effect of k.w.l strategy, which is one of the educational metacognitive strategies and was introduced based on the constructivism theory for deep and meaningful learning by Ogel, in the onlin class of teaching Arabic grammar,to asses the effectiveness of this strategy in meaningful and deep learning of Arabic grammar.The study used Quasi-experimental method with pre and post test on the control and experimental groups who were trained virtually. statistical population included 34 students in the first semester of the bachelor at Khwarizmi public University in(1400). The sample was selected by the available method and then randomly divided into two groups .Data analysis was done by(spss). In order to determine the presence or absence of influence between variables and to estimate and generalize the results obtained from the sample size to the statistical population,the combined analysis of covariance or repeated measures test(GLMRM)was used to assess and evaluate the research data. According to results, average of pre-test scores of the Arabic grammar variables in the control and experimental groups are 2.40 and 2.04,respectively, and these averages in the post-test of these groups are reported 2.55 and 3.01 respectively,so there is a significant difference betyeen pre-test and post-test.so we see a significant increase in the grammar average in the experimental groupʼs post-test.
Volume 0, Issue 0 (Articles accepted at the time of publication 2024)
Abstract
Considering the main role of listening comprehension in second language learning, it seems that providing listening strategies to language learners is necessary. New technologies are used to facilitate learning and podcast is one of the new tools used in language teaching today. The purpose of this descriptive-analytical study is to investigate whether metacognitive training with the help of podcasts can be used as an effective tool in enhancing listening comprehension. The research problem is caused by the lack of sufficient knowledge of language learners about metacognitive strategies, and in this regard, the role of the teacher in teaching these strategies is very important. This study can help French language teachers to include metacognitive strategies in improving listening skills and conventional methods. Revise yourself. For this purpose, 30 language learners were divided into two experimental and control groups based on the pre-test results. The experimental group received the podcasts through Vandergrift's metacognitive training, while the control group was taught the podcasts without any additional instructions or strategies. The results with the help of note taking, self-assessment questionnaire, direct observation and using spss software (t-test) showed that the metacognitive strategy has a positive effect on students' listening comprehension.
Volume 0, Issue 0 (Articles accepted at the time of publication 2024)
Abstract
This research is aimed to capture EFL teachers’ use of technology in Task-Based Language Teaching (TBLT) by focusing on the variety and intensity of tasks in teaching reading. Driven by the survey research, the data were collected from 71 teachers of English as a Foreign Language (EFL) in Indonesia and analyzed descriptively. The findings show that the EFL teachers perceived that the use of technology in TBLT in teaching reading is important and it can enhance students' language learning experiences. Technology offers engaging materials and activities that aid reading comprehension. Furthermore, EFL teachers' use of various tasks and resources may indicate a need for continuing professional development to improve digital literacy skills and pedagogical strategies of English teachers in EFL context. Although the findings of this survey give an insight into the data of English teachers’ use of technology in TBLT in terms of variety and intensity in teaching reading, this survey has its limitations with regard to the numbers of participants. This research highlights the dynamic relationship among technology, TBLT, and reading instruction in the EFL context, and suggests the need for continued research and exploration of best practices in this area. The current study succeeded in adding new empirical studies related to the variety and intensity in pre-reading, whilst-reading and post-reading activities of EFL teachers enacting teaching reading with the use of TBLT.
Volume 0, Issue 0 (Articles accepted at the time of publication 2024)
Abstract
L’enseignement de l’écriture en français langue étrangère (FLE) bénéficie de l’intégration de genres discursifs variés, parmi lesquels l’audiodescription (AD) se distingue comme un outil pédagogique innovant. Initialement conçue pour les publics non-voyants et malvoyants, l’AD consiste à décrire les éléments visuels d’une œuvre cinématographique, tels que les décors, les personnages et les actions (Morisset & Gonant, 2008). Cette étude explore l’utilisation de l’AD comme genre textuel dans l’enseignement du FLE. Le processus pédagogique comprend deux phases : les apprenants rédigent d’abord une AD d’une scène de film, puis, après avoir appris les normes de l’AD, produisent une seconde version. Une analyse comparative des deux textes est réalisée sur les plans pragmatique et linguistique. Ce cycle est répété quatre fois pour renforcer l’apprentissage. Enfin, un questionnaire évalue la perception des apprenants quant à l’utilité de l’AD comme outil pédagogique. Les résultats suggèrent que l’AD améliore les compétences écrites en FLE tout en sensibilisant les apprenants aux enjeux de l’accessibilité.
Volume 0, Issue 0 (9-2025)
Abstract
The larvae of a moth feeding on the citrus flowers specifically on, Citrus limon, were found in greenhouses in Mazandaran province (north of Iran) in April 2024. Based on the habitat preference, and the morphological features, larvae and pupae were identified as Prays citri (Millière, 1873) (Lepidoptera: Praydidae). This species was listed among the foreign quarantine pests of the country, according to the guide list for monitoring and tracking quarantine agents of Iran on 21 June 2024. It is one of the most harmful pests of citrus plants especially lemon, which is spreading rapidly and creepily in all areas in the world. Our recent evidence revealed the existence of this pest in a moderately wide area of the Iranian northern lemon greenhouses. Background information for a reliable identification of both adults and larvae, the taxonomic history, origin, distribution, host plants, damage, and management practices of the pest are also discussed. The occurrence of this pest is a warning for Iranian citrus orchards indicating a potential risk of its spread, particularly to the southern regions of the country.
Volume 1, Issue 2 ((Articles in Persian) 2010)
Abstract
Volume 1, Issue 4 (Fall 2023)
Abstract
The quality of stable environments is crucial for maintaining the health of horses, minimizing air pollution, and potentially utilizing waste for fuel production. This study investigates the physical, chemical, and biological characteristics of dry horse bedding across twenty-four horse-riding clubs in Tehran. The objectives are to gather information on current stable practices and assess the suitability of used bedding for reuse or energy generation. Results revealed that the moisture content of the bedding ranged from 39.63% to 76.92%, leading to high drying costs. Ash content varied between 7.73% and 17.20%, while nitrogen content ranged from 0.78% to 1.77%. Hydrogen content was measured between 7.06% and 9.04%, with carbon content ranging from 14.74% to 24.46%. The particle size distribution showed that 70% to 94% of particles were smaller than 3.15 mm, with 0.5% to 1.5% below 0.075 mm, indicating potential health concerns. The average gross calorific value was 19.0372 MJ/kg. While the pellet samples did not meet specifications for non-industrial use, used horse bedding pellets exhibited greater suitability for industrial applications.
Volume 2, Issue 2 (Special for Virtual Conference of Health Education & Promotion - 2014)
Abstract
Aim: Nowadays, the Internet is considered as an appropriate means of transferring knowledge in education and research processes. However, overusing the Internet may cause addiction. This problem may increase as the Internet usage increases. This paper attempted to study the Internet addiction among the students of Yazd universities. Methods: This research was a cross-sectional study conducted among 238 students of Yazd University Medical Sciences and 245 students of Yazd Payam-e-Noor University. The data were collected using the Internet Addiction Questionnaire introduced by Young. To analyze data, several statistical operations were conducted, including mean, percentage, Chi-square, Spearman’s correlation coefficient, Chi-two, and linear regression. Findings: Among the addicted students, 51% were from Payam-e-Noor University and 49% were from the University of Medical Sciences. Descriptive statistics also revealed that 51% of the addicted students were female and 67% of them were unmarried. Getting news and using e-mail services were mostly reported the Internet usages. Conclusion: Comparing with the previous studies, the Internet addiction has increased among the students of Yazd universities. This problem needs more concise investigation, and educational and counseling planning to reduce the Internet abuse.
Volume 2, Issue 3 (9-2017)
Abstract
Background: Students are the most dynamic people in the society and their health is to a great extent a prerequisite for the health of most individuals in the society. Musculoskeletal disorders (MSD) are one of the most important factors that effect on general health. This study was conducted to The Relationship Between General Health and MSD among Tarbiat Modarres University Students.
Methods and Materials: This descriptive-analytic study was conducted on 306 college students were enrolled by using nonprobability purposive sampling methods and also availability. Data was obtained based on the demographic data questionnaire, musculoskeletal researcher-made questionnaire and the standard General Health Questionnaire (GHQ-12). After collecting the required data, SPSS software version 23 was used for descriptive and statistical analysis (Spearman/Pearson chi-square, phi Cramer’s V).
Results: The results showed that 60.6% and 72% of male and female students had desirable general health. Also, the findings showed that general health decreases with age growth (P = 0.015). Among the musculoskeletal disorders, only low back pain and neck pain were associated with general health, as students who suffered from low back pain and neck had an unhealthy public health (P < 0.05).
Conclusion: The results of this study showed a high prevalence of general health disorders and musculoskeletal disorders among students. Musculoskeletal disorders have a profound effect on the general health of students, thus jeopardizing their general health. Therefore, consideration should be given to the factors causing these disorders and the appropriate planning to overcome it.
Volume 2, Issue 4 (4-2011)
Abstract
The subject of this paper is analyzing the attitudes of political groups within the government, towards the role of people in the political system. Research question is: "How is political culture of the ruling political groups"? Theoretical argument of this paper is related to the political cultures theories. Assumptions of this article were tested through qualitative and quantitative techniques. Experimental results indicated that the attitude of political groups from the first period of presidential elections to the nineth period of the election has changed from task-oriented attitude to right-oriented attitude. After the seventh presidential election, this attitude change was quite tangible.
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Volume 4, Issue 4 (Winter 2021)
Abstract
Research subject: Saponin compounds have been considered as anti-cancer, antimicrobial, antifungal, anti-inflammatory, and antiviral activity agents. In addition, they are also used as foaming agents in some food industries. There are few studies for assessing the extraction of this substance, so far. The main purpose of this study is to assess and compare the extraction yield of Saponin by conventional extracting using solvent and super-critical fluid method.
Research approach: In the extraction with solvent, the effect of three independent parameters including mass of solid material, percentage of ethanol solvent, and time of extraction on process performance was investigated. Yield of extraction and Saponin concentration were considered as indexes for evaluating the process performance. In the super critical fluid extraction, the effects of extraction time, pressure, and temperature were investigated. In this method, carbon dioxide was used as super critical fluid and 80% ethanol was used as co-solvent. In order to design of experiment and process optimization, response surface methodology and central composite design was used.
Main results: In optimum condition of extraction with solvent, the mass of solid material, ethanol solvent percentage, and extraction time were 5.4 g, 77.5%, and 7 h, respectively. In this condition, the maximum efficiency of extraction yield of 1.12 mg of saponins per a gram of dry primary substance was obtained. The results indicated that time and solvent percentage were significant parameters. Further, interaction between two factors of time and solvent percentage was significant. For supercritical fluid extraction, in optimum condition, extraction time, pressure, and temperature were 10 h, 400 bar, and 50 °C, respectively. Extraction yield in this condition was 20% more than the yield of conventional method. It is concluded that the supercritical fluid extraction method has higher performance than conventional method.
Volume 5, Issue 2 (Spring 2023)
Abstract
Introduction
Slums as an output of spatial imbalances originating from the injustice of space is one of the most important foundations threatening security and development in individual and collective scales. Ahvaz ranks first in the country in terms of the area of Slums areas with ten districts, and in terms of the marginal population with 450 thousand people, it is one of the densest marginal areas in the country. The impact of the Slums areas can be investigated and analyzed from various aspects, one of the most important aspects of these studies is the spatial analysis of crimes in the Slums areas of the city and the identification of crime-prone areas for the prevention of crimes in the city. Space of Ahvaz city has two important features. The first is the extent and the second is the presence of marginal areas. The marginal neighborhoods of Ahvaz city include Shalang Abad, Siyahi, Ain Do, Al Safi, Hasir Abad, Zargan, Zargan, Zoway, Cheniba, and Malashieh. In this article, focusing on crimes such as armed robbery, extortion, brawl, shooting, and murder, the marginal neighborhoods have been examined and ranked in terms of the five crimes index.
Methodology
This article will be organized using the descriptive-analytical method and the use of theoretical and field studies of research findings. In order to analyze the theoretical aspects of the research, library data, documents, electronic references, etc. have been used. Analytical Hierarchy Process (AHP) has been used to determine the weight of crimes and the Vicor technique in Excel in order to rank areas in terms of the occurrence of five types of crimes.
Finding
The findings show that the ranking of the marginal neighborhoods in terms of five types of crimes, from the highest to the lowest amount, respectively, including Al-Safi, Hasir Abad, and the source of water,
Shelang Abad, Siyahi and Ain Do, Malashieh, Cheniba, and Zargan. And it is Zoya.
Insecurity caused by urban marginalization can be categorized into three scales: 1- local scale; which include: the suburbs of the city. In general, insecurity in the city can be seen and investigated in the following two ways: A: Crimes in urban life such as armed robbery, extortion, shooting, etc. B: Violent acts that are usually collective. Such as: conflict and quarrel 2- Regional or metropolitan scale of Ahvaz city: the marginal areas of Ahvaz city provide a suitable platform for the residence of criminals and criminals due to the possibility of reduced police security surveillance. In this scale, insecurity and crime gradually penetrate from the marginal neighborhoods to other neighborhoods in Ahvaz. And the security of Ahvaz metropolis faces a crisis. 3- Regional scale or Khuzestan province: After the spread of insecurity and crime at the local and regional level, there is a possibility of reflecting the absence or reduction of insecurity from Ahvaz metropolis to the scale of Khuzestan province. This level of insecurity goes beyond crime-prone urban areas. Decreasing the security of Ahvaz city as its political centrality for Khuzestan province has economic, political, cultural, social, etc. dimensions on this scale is important for Khuzestan province. Therefore, in the line of research, the Analytical Hierarchy Process (AHP) has been used to determine the weight of crimes and Vicor technique in Excel in order to rank areas in terms of the occurrence of five types of crimes. So that the marginal neighborhoods are ranked in terms of five crimes and the neighborhoods that have more crime potential than other areas are identified.
Conclusion
One of the most important issues arising from the governance of the marginalization conditions in the country's metropolises. At present, Ahvaz, due to the centrality of the province and the presence of higher education centers, specialized medical services, power plants, and industrial and commercial centers, has welcomed immigrants from the cities and settlements of Khuzestan province and other provinces. The situation of the marginal neighborhoods of Ahvaz is in an unfavorable situation in terms of human development and physical space. And it affects the increase of urban crimes. This important point is the need to pay attention to spatial justice at the local and regional levels of Ahvaz city space for the relative equality of human development indicators and physical space. Through the spatial analysis of crimes in the marginal neighborhoods of Ahvaz metropolis, it is possible to identify the neighborhoods that are in an unfavorable situation in terms of related crimes in order to prevent crime.
Volume 5, Issue 3 (2015 2015)
Abstract
Tourism industry is one the most successful industries of the world in in perspective of gaining income. Gaining of plenteous currency incomes, extension of cultural scientific relations, creating occupations directly and indirectly and representation of country›s security and stability are considered among consequences and achievements of its extension in every country. In today competitive world, various countries, with introducing their touristic graces try to improve their economic status. One of various kinds of tourism which is recently introduced is Geotourism. This word is an intercourse term composed from two words geo with the meaning of earth and tourism. Geotourism is a particular form of tourism industry in which geological tourism is the focus of attention. Experts collectively agree on this matter that Geotourism creates a great potential for many regions which don’t have touristic prosperity. Geotourism industry was formally born in the world in 1955. About 150 to 200 years ago in England, Adam Sedvic for the first time provided geology tours for those who were interested. Lifetime of Woodvardin University museum returns to 1728, this is the first public museum dedicated to applied geology in geology organization which is outfitted with tools of geology interpretation since that date. In midst 1990s Geotourism was increasingly discussed and studied among tourism industry, politicians, advocates of environment protection, geographers, geologists and similar scientific assemblies. Leaders of Geotourism in the world were those who had intercourse studies and activities. For example, Dr. Thomas E. House well known with English name House was the first one in the world who after Adam Sedvic provided an academic definition for Geotourism in 1995 and in this definition has introduced Geotourism something above aesthetical attitude to geological phenomena. Another world leader is professor Russ Kingston Dowling who has many books in various grounds of tourism, ecotourism and finally Geotourism and this is while purely geological attitude to Geotourism in most cases is confined to geo diversity studies and takes the scholar away from contents of geological interpretations and intercourse and multicourse studies of tourism. In 2006, Russ Kingston Dowling and David Newsum in (universal) Geotourism book by extensive drafting of attention to geological tourism, provided a logical answer to Jonathan Tortolut 3 from national geography magazine of America (2012) who simply believes that visiting of all historical –cultural – natural heritages (so that helps stable development and local societies) is Geotourism. In Iran, many students and scholars have worked for introducing Geotourism. One year after Mohammadhasan Nabavi suggestion in 1378 in eighteenth seminar of geology regarding identification of beauties of country›s earth, the work of identifying beauties and geology diversity of the country began. After that in 2006, Alireza Amri Kazemi and Abbas Mehrpouya entered a list of Iran geological diversity to fifth chapter of Geotourism book written by Ross Dowling and David Newsum. Many specialized studies have been performed about surveying of mineral and thermal springs in Iran but lees work is done on touristic aspects of theses springs. Therefore, providing a method for evaluation of touristic value of thermal springs as an important Geotourism in our country is a task which is not surveyed. In this study, a method for evaluation of Geotourism value is offered based on modified Pralong method. For reaching to the score of spring tourism beauty, scientific, cultural, efficiency and economical scales have been investigated in the format of Pralong model. Since Pralong model only notes scales and subscales of tourism score, it has been modified using experts› views. This method addresses evaluation of tourism scaleand place efficiency scale. Its tourism scale can be analyzed and assessed from four aspects: outward beauty, scientific, cultural – historical and social – economical. Tourism scale of a place is obtained from average of these four scale and weight of any of aspects of tourism scale is not more or less than others. Place outward beauty scale addresses its visual and spectacular aspects. Scientific scale is assessed based on criterions like scarcity and didactic position. In evaluation of cultural scale artistic aspects and cultural conventions of the place are emphasized and finally, economic value of each place depends on its exploitable characteristics and Entrepreneurship in the ground of tourism and recreation. In Pralong method, scales and subscales have equal weight in relation to each other, while in multi scale decision making methods usually weight of scales and subscales are different. Especially in the debate of Iran Geotourism equating of these scales won›t entail correct results. Since weight determination was a difficult task, people were asked to categorize scales in precedence order and then regarding to precedence, scales and subscales were weighed. For weighing the following formula was used. In this formula, Wi is i th scale weight and Ri precedence of scale i and n is the number of scales. With several rounds of field study and attendance in the region and obtained raw data, scores of scales were calculated according to tables 4 to 9 with two methods of Pralong and modified Pralong. These numbers show the tourism scale of region as 0.379 in Pralong method and 0.441 in modified Pralong. These numbers are indicative of a favorable status in understudy region in respect of creating touristic recreational facilities for developing a geotouristic system. Of course, %16 growth of modified Pralong score shows more attention to this region regarding to Iranian reporters point of view toward Mr. Pralong view, so that even in its neighborhood another system for creating a geo park is notable (figure 6). But despite the regions potential capabilities, the level and quality of efficiency was evaluated low. Of course regarding to weights of modified Pralong method, this level with %37 growth is in high intermediate category which shows lower efficiency expectancy level of Iranian society than Mr. Pralong method. Then, still some tasks should be done for increasing efficiency quality of this spring and despite implementation of the design of country›s water therapy development and provision of universal design of Joshan hot water by Oghaf organization, effective measurements have not yet been performed for right exploitation of the region. Joshan hot water spring due to closeness to center of province, possessing therapeutic attribute, existence of novel geomorphological and geological perspectives and appropriate weather condition in case of observation of stable tourism principle, decentralization and budget assignment, development of infrastructural, sanitarian, residential and recreational facilities and exertion of service and facility standards can turn to one of the greatest hydrotherapy centers in southeast of the country. One of advantages of the method offered in this study is the calculation of development effect of each of mentioned facilities in increasing the level of tourism score of this Geotourism. Even with evaluation of this method, we can have a comparison between various places in relation with each other for other Geotourism regions of the province.
Volume 6, Issue 1 (Winter 2020)
Abstract
Objectives: Despite the benefits of antibiotics, their residues in foodstuffs prepared for human consumption could be cancerous and mutagenic and cause allergic reactions with toxic side effects, disorders in intestinal wall, adverse effects on microbial intestinal flora, and the emergence of resistant strains of bacteria. Therefore, the present study aimed to investigate the residual antibiotics in liver and muscle tissues of poultry samples using the four-plate test (FPT) method in Chaharmahal and Bakhtiari Province.
Materials & Methods: A total of 6406 samples were randomly collected from liver and muscle tissues of 3203 poultry samples from June 2016 to March 2017. Antibiotic residues were detected in liver and muscle samples using the four-plate test (FPT) method.
Findings: During a two-year study period, from a total of 6406 samples collected, 3203 (50%) samples were collected from liver tissues, and 3203 (50) samples were collected from muscle tissues of poultry samples, respectively. Among the liver and muscle samples, 12 (384/3203) and 6.4% (206/3203) were positive for the presence of antibiotic residues, respectively. According to the seasonal distribution of muscle samples, the highest rate of antibiotic residues was detected in the autumn with 3 % (95/3203), while the lowest rate was observed in the winter with 0.25% (8/3203) for both bacteria under study (Bacillus subtilis and Micrococcus luteus). According to the seasonal distribution of liver samples, the highest rate of antibiotic residues was detected in the autumn with 5% (159/3203), while the lowest rate was observed in the spring with 1.1% (35/3203).
Conclusion: In conclusion, a large number of liver tissues collected from poultry samples were contaminated with antibiotic residues, especially at pH=6 and in the autumn season. Therefore, it is recommended to implement appropriate strategies for managing and controlling the use of antibacterial agents in the veterinary industry. Also, it is necessary to monitor the withdrawal time of antibiotics and screen the maximum residue limits (MRLs) in poultry products including liver, egg, and meat.
Volume 6, Issue 3 (No.3 (Tome 24), (Articles in Persian) 2015)
Abstract
Based on Talmy’s (2000) lexicalization patterns, languages are considered either verb-framed or satellite-framed in terms of the language unit (either verb roots or satellites) that encodes Path of motion. According to Talmy’s hypothesis Indo-European languages except for Post Hellenic and Romans fall into satellite-framed class, since speakers of these languages conflate Manner of motion in the verb roots, while Path appears in satellites. This paper investigates the pervasive pattern Persian pre-school speaker children use to express motion components, namely Manner and Path in elicited narratives based on ten short animated clips simultaneously demonstrating Manner and path of motion. The Children’s narratives have further been compared to those of adults in order to highlight differences and similarities in mapping two semantic components onto language units. In the end, it has been discussed whether or not Persian, as an Indo-European language fits into Talmy’s binary typology. The analysis in this study illustrates that when narrating motion pictures, children follow the same pattern as adults do to encode Manner and Path; both groups employ path verbs with or without path satellites for vertical displacements, and prepositional phrases for horizontal trajectories where boundary crossing occurs. Manner of motion is either conflated in verb roots or not mentioned. Therefore as far as Path of motion is concerned, Persian language within the scope of the present study fits into verb-framed class of languages
Volume 7, Issue 2 (Spring 2022)
Abstract
Aim: The global outbreak of the new coronavirus (SARS-COV2) threatens human health around the world. The presence of the SARSCOV2 virus on surrounding surfaces and protective equipment such as respirators increases the transmission of the virus. One way to reduce the spread of the virus is through disinfection techniques. The aim of this study is to review the investigations carried out in the area of the ultraviolet (UV) effect on the SARS-CoV2 virus, the UV disinfection spectra, the effect of this radiation on surface disinfection and the N95 respirator.
Method and Materials: The search was carried out from December 2019 to August 2020 in the databases including Scopus, Science Direct, Web of Science and Pubmed with the keywords UV and Covid19, UV and Sars-Cov2, UV and Covid19 as well as UV and sars-Cov2. By checking the titles and abstracts of the articles, based on the defined inclusion and exclusion criteria, related articles were separated from the irrelevant ones and also duplicate articles were eliminated.
Findings: This study showed that UV light generally has antiseptic properties and were effective against SARS-Cov2 virus, so it could eliminate Covid-19 virus and similar types of viruses on the surfaces and respiratory masks. The typical wavelength used in the studies was 254 nm.
Conclusion: The results of this study revealed that UV can be used to disinfect surfaces, respiratory masks and it helps us choose appropriate spectra of this radiation, especially during Covid-19 pandemic, however, the current studies in this field are insufficient and further studies are needed.
Volume 7, Issue 4 (Fall 2021)
Abstract
Backgrounds: Neonatal sepsis is a clinical syndrome in neonates, which is an uncommon but significant cause of morbidity and mortality in infants. The aim of this study was to evaluate the incidence of sepsis caused by Escherichia coli and its antibiotic resistance pattern as well as to assess the potential risk factors in neonates and maternal characteristics in Shiraz.
Material & Method: This retrospective study was performed on infants with sepsis in the first three days of life during February 2019 to March 2021. Patients' information was obtained using their hospital records and a questionnaire. All statistical analyses were conducted using SPSS software Ver. 18.0. A p-value <.05 was considered as statistically significant
Findings: During this study, a total of 250 positive blood cultures were reported for infants less than 3 days old. Of these, 21(8.4%) E. coli strains were isolated from 14 preterm and 7 term neonates. In all patients, the most effective antibiotic was meropenem, and the highest resistance was observed to cefoxitin.
Conclusion: Base on the present study results, E. coli is the most prevalent Gram-negative bacterium isolated in Shiraz. Premature birth and very low weight are the most important risk factors for developing early-onset sepsis.
Volume 8, Issue 1 (Winter 2019)
Abstract
Aims: Malathion is one of the agricultural organophosphate pesticides used in agriculture that may be found in aquaculture centers. The aim of this study was to investigate the effects of different levels of dietary vitamin C on improving the situation of growth, digestive enzymes activity and blood stress factors of Nile Tilapia (Oreochromis Niloticus) under sub-lethal toxicity of malathion.
Materials & Methods: In this experimental study, 180 Nile tilapia with weight average of 12.5±5g were subjected to 25% concentrations of Lc50 96h of malathion for 28 days and during this period, the fishes were fed with different levels of vitamin C (0, 300, 600, and 900mg/kg of feed). Data were analyzed by Duncan's new multiple range test and one-way analysis of variance through SPSS 24 software.
Findings: The weight gain and specific growth rate of fish fed by the highest vitamin level (900mg/kg of feed) were significantly higher than other groups (p<0.05), while the feed conversion ratio in the fish under mentioned treatment significantly decreased compared to other treatments. Trypsin and chymotrypsin digestive enzyme activities were significantly increased in treatments of 600 and 900mg/kg vitamin C in diet, respectively. The activity of other enzymes at different concentrations of vitamin C in the diet did not show a significant difference (p>0.05). Blood glucose level was significantly higher in control treatment in comparison to the other treatments.
Conclusion: Vitamin C as an anti-stress agent reduces the stress in Nile tilapia subjected by Malathion pesticides and improve the metabolic status and growth performance of Nile tilapia.
Volume 8, Issue 1 (Winter 2022)
Abstract
Backgrounds: A common problem among diabetic patients is foot ulcers and infections, impacting up to 15% of diabetic patients over their lifetime. The aim of this study was to investigate the frequency of bacterial agents and their antimicrobial resistance pattern in patients with diabetic foot infection in Namazi and Shahid Faghihi hospitals in Shiraz.
Materials & Methods: This cross-sectional study was conducted in Namazi and Shahid Faghihi hospitals in Shiraz. The collected samples were transferred to the laboratory for culture and biochemical tests. After accurate identification of bacterial agents, antibiotic susceptibility of all isolated bacteria was evaluated by disk diffusion method based on CLSI guidelines. Data were analyzed using SPSS software (Version 19).
Findings: In this study, 166 patients with diabetic foot ulcers were evaluated. The mean age of patients was 55.8± 13.2 years, and 109 (66.4%) cases were male. Also, 62% of patients had an underlying disease, while most of them had hypertension (27%). The most prevalent isolated bacterium was Staphylococcus epidermidis. The most effective antibiotics against isolated Gram-positive and Gram-negative bacteria were vancomycin and amikacin, respectively.
Conclusion: In this study, it was concluded that the frequency of Gram-negative bacteria in diabetic foot ulcer infections was higher than that of Gram-positive bacteria.
Volume 8, Issue 3 (No. 8 (Tome 38), (Articles in Persian) 2017)
Abstract
This quasi-experimental study aimed to investigate the effects of five different glossing conditions (i.e., full gloss, inference-gloss-gloss, gloss-retrieval-gloss, inference-gloss-retrieval-gloss, and gloss-retrieval-gloss-retrieval) on English as a foreign language (EFL) vocabulary retention. To this end, 140 MA students of Teaching English as a Foreign Language (TEFL) were selected. The participants were randomly assigned to one glossing condition to read an English text. Within the text, five target words were glossed twice or three times in the text margin. For instance, in the inference-gloss-retrieval-gloss condition, the participants were expected to infer word meaning in the first encounter; then the word’s meaning was provided in the form of gloss in the second encounter; in the third word occurrence they were expected to remember word meaning; and at the last word encounter the word meaning was again provided in the form of gloss. To ensure the participants’ attention while reading, a multiple-choice reading comprehension test was administered after reading the text. Four weeks later, two vocabulary tests (i.e., form retention and meaning retention) were administered. The obtained data were analyzed through one-way MANOVAs and post hoc Scheffe tests. The results revealed that the gloss-retrieval-gloss-retrieval condition group outperformed the other four groups in both form retention and meaning retention posttests.