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A survey was carried out in citrus nurseries in Mazandaran and Kerman provinces as the major citrus growing regions of Iran. Different varieties of orange and tangerine with abnormal symptoms were examined for the occurrence of Candidatus Liberobacter asiaticus, Spiroplasma citri and phytoplasma as the most important vascular limited pathogens in citrus. By visual inspection and molecular examination of 360 samples for the presence of fastidious prokaryotes only an occasional occurrence of phytoplasma and Spiroplasma citri were detected, using phytoplasma universal primer pairs P1/P7 and fU5/rU3 (in single tube nested PCR assay) and Spiroplasma specific primers P89-r/f and P58-6f/4r. PCR products of phytoplasmas were digested with MseI, AluI, BamHI and TaqI restriction enzymes and the digestion results showed phytoplasma related to aster yellows phytoplasma group. No amplicon was obtained for Candidatus Liberobacter asiaticus. The findings suggest when pathogen’s titer is low; symptoms of vascular limited diseases are almost confused with disorder and deficiency signs. So for sanitary selection and certification program, use of sensitive detection methods is recommended. Multiplex PCR assay used in this study successfully detected Candidatus Liberibacter asiaticus, Spiroplasma citri and phytoplasma in one reaction and is suggested for health certification programs.  

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Land Reforms Program and abolishing feudalism as a part of Modernization in Iran and Russia are considered as one the most influent passages in social and political changes. Anton Chekhov in “The Cherry Orchard” and Akbar Radi in “The Magnificent Smile of Mr. Gill” are using the Land reforms and the fall of aristocracy in Iran and Russia as background and reveal the influences on characters of different social classes. These two dramas are based on authoritarian modernization in Era of Pahlavi II in Iran and Nicholas II in Russia which was done very quickly. Therefore these works can be used as appropriate references for comparative history studies about fall of landlords. Both works have a critical point of view to modernization. Both works create characters with identity crisis giving new dimension and revealing untold results of Authoritarian modernization what was ignored in history analyses. Analyzing the characters of both works prepares a process to follow the results of Identity crisis coming from modernization. This article, by comparative inquiring between plays and their historical contexts, attempts to trace a picture of critical conditions emanated from industrialization, decline of agriculture, and infrastructural alterations. The purpose of this comparative inquiry is to reveal how modernization programme result in alteration of the conditions of social classes, and in the identity crisis, which have been reflected in two Iranian and Russian plays created in similar contexts.         

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The message recall effects consist of the primary effects, middle effects and recency effects. People who recall the first part of the list are affected by the primary effects, those who recall the middle part are affected by the middle effects, and those who recall the last part are affected by the recency effects. The present research is to investigate the recency effects of Persian verbal radio commercials on the memory of their listeners. Also the study is to represent the effects of using short sentences and slogans in Persian radio commercials. The research methods are the field study and experimental. To perform the trials, six out of the 50 Persian radio commercials were chosen, which were broadcasted from Iran, Javan and Payam radio channels in February and March, 2011. Six blank-sentence tests were designed according to the commercials. 71 participants (44 men and 27 women) were randomly selected. Listening the commercials twice, they wrote the missing words in the tests they recalled. The results suggest the recency items with minrank (2/77) of a Persian radio commercial have more effects on the listeners’ working memory and are recalled better than the primary (2/16) and  the middle items (%1/06). Also short sentences and slogans (99/79) have more effects on the listeners’ working memory and they are recalled well than the others (41/80). The results are suitable for Persian radio commercial programmers, goods producers and service institution administrators to take the listeners’ attractions to introduce their goods and services better. Linguists and psychologists can also use these results to study the effects of sentence positions on people's memories.

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Research Subject: Poly(dimethylsiloxane) (PDMS) is a silicone polymer that nowadays despite unique characteristics and high application potential of its microparticles, their preparation via bulk emulsification methods is a main challenge due to the limitations in mixing process, high viscosity and low surface energy of PDMS that make impossible accurate  control of final obtained particles. In the present work, size-controlled PDMS microparticles were prepared from a high-viscosity material.
Research Approach: PDMS microparticles were obtained by using glass capillary co-flow microfluidic device. The designed microfluidic device is facile, inexpensive and reusable and facilitated preparation of the high-viscosity PDMS microdroplets. Stabilizing the oil-in-water emulsion was obtained by optimizing the bath components and curing process that resulted in monodisperse and spherical PDMS microparicles. Effect of the some important adjustable parameters such as microchannel diameter and flow rate on the flow regimes and microparticles polydispersity were investigated by means of optical microscopy and scanning electron microscopy.
Main Results: Results showed a dripping regime for producing monodisperse microparticles at low flow rates of the continuous phase and monodisperse microparticles from it. On the contrary, microparticles obtained from jetting regime are more polydisperse and smaller in comparison with dripping regime. By reducing the diameter of inner microchannel, microparticles with a diameter of 1.83 µm were obtained. Using the designed technology, uniform nanocomposite PDMS/ZnO microparticles 318 µm in diameter containing 15% ZnO were obtained from an oil phase viscosity of 7550 mPa.s. Therefore by an optimized and facile method, size-controllable uniform microparticles can be prepared that are proposed for various applications including drug delivery, bioengineering and electronic industry.

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Problem: Residents of residential complexes in urban areas face all kinds of sounds every day. Most of these hundreds are very noisy and painful in traffic centers.
Target: The aim of the current research is to evaluate the satisfaction of the residents of Tabriz railway neighborhood from the perspective of environmental acoustic comfort.
Method: The current research method is descriptive-analytical with practical purpose. The statistical population of the research is 32,936 residents of the Tabriz railway neighborhood. The sample size was 380 people using Cochran's formula. For the validity of the questions, face validity was used and Cronbach's alpha was used for reliability. To analyze the data, structural equation method and TOPSIS and FTOPSIS techniques from Spss and Amos software were used.
Result: The results showed that among the factors affecting the acoustic comfort of the residents of the Tabriz railway neighborhood, the physical index had the greatest impact, followed by the acoustic and social indicators. Also, the results showed that in terms of the ranking of the koi in terms of acoustic comfort in terms of noise pollution, Ittahad alley got the highest noise pollution, followed by Niloufar alley and Shaghaig koi, the second and third respectively As a result, with proper design and use of form, facade and materials in terms of architectural acoustics, noise pollution can be reduced to a great extent in Tabriz Railway neighborhood and help to improve the quality of acoustic comfort of the residents.              

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achiving optimal soil governance taking into account Iranian contex needs theoretical and practical framework. Regarding this, the Islamic Iranian model of progress as well as issues raised in the 17th and 18th Iranian Soil Sciences Congresses in 2022 and 2024 were examined. Stewardship environmental governance in the Islamic Iranian model of progress, is crystallized in the four relations between human and Allah, himself, others, and nature. This indigenous theory in relation to the country’s public governance has provided the context for extension of discourse and paradigm shift. In the implementation of soil governance, the establishment of soil bureau in the Ministry of Jihad Agriculture and its branches in the provinces since 2016, and also, the approval of the Soil Protection Law in 2018 has taken an important step in the direction of increasing the effectiveness of the government and other authorities. Moreover, review of the approved law showed that indicators such as the rule of law, transparency and justice are better and more coherent than indicators such as accountability and participation. To institutionalize stewardship soil governance and improve effective and constructive interaction of government with other civil and private sectors, it was proposed to create country's comprehensive soil database and legal access to it, to define indigenous soil governance indicators and to encourage participation of local communities in the soil resources management. This theoretical and practical set should be elaborate under country’s general governance through stakeholders’ participation at all levele.

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Small walnut aphid (SWA) Chromaphis juglandicola is an economic pest of walnut trees. Population fluctuation of SWA was studied in Mamaghan walnut orchards (East Azarbaijan Province, Iran).Three factors affecting population density of SWA, including vertical divisions of canopy (upper and lower half), geographical orientations of canopy (at four levels) and elongation of branch (basal and distal ends), were investigated. Sampling unit was a cluster of five leaves. Totally 128 samples were taken weekly from all strata upon eight chosen trees, repeating 30 times during the season. Natural enemies also were counted. The first SWA individuals were observed early May, consisting of first instar larvae and alate females. A sudden population increase occurred in mid-May. Maximum 40 aphids/leaf were observed in early June with first and second instars dominant, followed by a sudden decline in late June. A small peak was observed at early October. A partial tendency was observed toward north of canopy, at basal half of downward branches. Positive linear correlation between natural enemies' and SWA populations suggests density dependence. Moreover 2-4 week delay was present between them. Trioxys pallidus (Holliday) was dominant natural enemy in the region. Contrary to previous works, overwintering stages of the SWA in the region were predominantly developed stages (third and fourth instars as well as pre-reproductive winged females).

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Understanding the spatial dynamics of insect distributions provides useful information about their ecological requirements and can also be used in site-specific pest management programs. Interactions between prey and predator are spatially and temporally dynamic and can be affected by several factors. In this study, geostatistics was used to characterize the spatial variability of spotted alfalfa aphid, Therioaphis maculata Buckton and coccinellid lady beetles in alfalfa fields. Global positioning and geographic information systems were used for spatial sampling and mapping the distribution pattern of these insects. This study was conducted in three alfalfa fields with areas of 7.3, 3.1 and 0.5 ha and two growing seasons, 2013 and 2014. The 0.5 ha field was divided into 10 × 10m grids and 3.1 and 7.3 ha fields were divided into 30 × 30m grids. Weekly sampling began when height of alfalfa plants reached about 15cm and was continued until the cuttings of alfalfa hay. For sampling, 40 and 10 stems were chosen randomly in 30 × 30m and 10 × 10m grids, respectively and shaken into a white pan three times. Aphids and coccinellids fallen in the pan were counted and recorded. Semivariance analysis indicated that distribution of T. maculata and coccinellids was aggregated in the fields. Comparison of the distribution maps of aphid and lady beetles indicated that there was an overlap between the maps, but they did not coincide completely. This study revealed that relationship between spotted alfalfa aphid and lady beetles was spatially dynamic. These results can be used in biological control and site-specific management programs of T. maculata.
 

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 Mosses have proved to have antifungal properties due to their specific chemical compounds. In this study, the different extracts of some mosses collected from Khuzestan province were tested on a phytopathogenic fungus Fusarium solani, an important pathogen of crops, especially wheat, and compared to the commercial fungicide Benomyl. For this purpose, the dried mosses samples of ethanol, methanol, and acetone were extracted. The antifungal activity was tested by the disc diffusion method, and the growth inhibition zone was measured. Wheat seeds of the “Chamran” cultivar were implanted into moss extract and then transferred into pots containing 1: 10 mixture of soil and soil contaminated with F. solani. After 35 days, the root and crown of wheat plants were examined based on the Wallwork scale. Ethanolic and methanolic extracts caused an inhibitory of 90% and 81% relative to Benomyl, while acetonic extract had fewer effects (76%) in the in vitro tests. In vivo observations had also indicated that ethanolic extracts can significantly control root and crown rot 63.8%.

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Foot and Mouth Disease (FMD) is a highly contagious and devastating disease that spreads rapidly and causes many economic damages. One of the important      methods for detection of FMD and particularly differentiation of vaccinated from infected animals, is the use of non-structural proteins as antigens in ELISA kits. The purpose of this study was cloning of the gene sequence and expression of the antigenic regions of 3D nonstructural protein as one of the diagnostic options. For amplification of the antigenic regions of FMD virus 3D protein, specific primers containing NdeI and EcoRI restriction sites were designed and the polymerase chain reaction was performed. The sequences cut by these two enzymes, were inserted into PET21a+ vectors. The recombinant plasmids were then transformed into E. coli (DH5α). Colony-PCR tests and enzymatic digestions were performed on the resulting colonies and the presence of the target gene was confirmed. The gene sequence was further confirmed after sequencing. For production of recombinant antigens, the recombinant vector was transferred to the expression host of E. coli-BL21. The bacteria containing the recombinant gene were induced with IPTG and the expression of the recombinant protein was confirmed using the SDS-PAGE method. The molecular weight of the recombinant protein was about 24 kDa, and it can be used in the design of ELISA diagnostic kit.

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Aims: Artificial intelligence (AI) and machine learning (ML) are revolutionizing healthcare by enhancing the prediction of learning needs and enabling tailored educational interventions for patients and staff. This study explores the application of AI and ML models to predict learning needs from the patient's perspective.
Instruments & Methods: Three ML models (Linear Regression, Random Forest, and Gradient Boosting) were trained on health literacy, demographic, and treatment data from 218 cancer patients at Sultan Qaboos Comprehensive Cancer Center. Evaluation metrics included Mean Absolute Error (MAE), Root Mean Squared Error (RMSE), R² Score, and Area Under the Curve (AUC). Classification models (Random Forest, Gradient Boosting, Decision Tree, and Extra Trees) were assessed for accuracy, precision, recall, F1-score, and AUC in categorizing learning needs.
Findings: Gradient Boosting had the best predictive performance (MAE:0.0534, RMSE: 0.0788, R²:0.9844, AUC:0.96), followed by Random Forest (AUC:0.93). Linear Regression was less effective (AUC: 0.85). Key predictors included literacy level in chemotherapy, hormonal therapy, and treatment experiences, while demographic factors had minimal impact. For classification, Gradient Boosting and Decision Tree models achieved the highest accuracy (96.51%) and AUC (0.96). Random Forest showed 94.19% accuracy, while Extra Trees had 90.70%, indicating variability in model performance.
Conclusion: AI and ML, particularly Gradient Boosting, demonstrate strong potential in predicting and categorizing learning needs.

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In this paper, thermo-hydraulic behavior of a solar heater is numerically investigated and optimum geometry for the angled-rib turbulator which produces the maximum thermal enhancement factor is determined by Taguchi method. A general innovative geometry is introduced for the rib, that changing in its geometrical parameters will lead to three convenient types of turbulators, namely triangular, rectangular and trapezoidal ribs, simultaneously. َApplying Taguchi method leads to the optimum geometry parameters. A L16 (44) orthogonal Taguchi array is used. The aim of the Taguchi analysis is maximizing the thermal enhancement factor. The factors employed for the analysis are rib relative pitch, height, tip width and percentage of upstream-side perpendicularity. The analysis has been carried out for a flow of Re=10000 and a constant rib width. Due to the twofold effect of turbulators on thermo-hydraulic behavior, thermal enhancement factor concept is employed which stands for both heat transfer rate and friction factor. Results show that rib pitch and height have the most effect on thermal enhancement factor, respectively. The optimum rib geometry is found to be a triangular rib which has P/H=2, e/H=0.2 and 100% perpendicularity.

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In the present study, in order to investigate the effect of impact angle and sand jet pressure on the erosion rate and residual stress in sand molding operation, the experiments are performed using gray cast iron, pearlitic ductile iron (PDI) and austempered ductile iron (ADI) as workpiece materials. To fulfill this objective, experimental tests are conducted in full factorial design with workpiece material, impact angle and jet pressure as input and erosive wear rate and residual stress as output parameters. According to the results, variation of impact angle of erosive particles intensively affects the erosion rate of materials in a way that, among the experiments which are carried out in lower impact angles (15 to 30°), ADI cast iron shows the maximum erosive strength however as the impact angle shifts to higher values (75 to 90°), PDI cast iron becomes more resistance against erosion. It can also be noted from the SEM images that in sand shooting process, the presence of flake graphite in gray cast iron causes more formed and grown cracks which significantly intensifies its erosion rate relative to ADI and PDI cast irons. Additionally, comparative analysis of results revealed that formation of surface micro cracks in gray cast iron material causes less induced compression residual stresses relative to ADI cast iron whose great stiffness leads to higher magnitudes of compression residual stress in sand molding operation.

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In this study, severe plastic deformation of 7075 aluminum alloy was investigated using a new method, based on the combination of conventional upsetting and direct extrusion. In this process, which is called repetitive upsetting-extrusion, cylindrical samples were first subjected to upsetting and were subsequently subjected to extrusion at 250 °C with various processing cycles. Die design was carried out considering the possibility of conducting both upsetting and extrusion by using a single die and the maximum of four RUE cycles were successfully performed on the samples. Finite element method was used to simulate the deformation behavior of 7075 alloy during repetitive upsetting-extrusion processing and the strain distribution was obtained for the deformed samples. The finite element simulation results correlated fairly well with the microstructural observations. Based on the simulation results, the maximum effective strain was observed at the central region of the samples. The deformation behavior and the flow pattern were discussed based on the experimental and the simulation results. In addition, the effect of applied strain on mechanical properties of processed samples was studied. Tensile strength and elongation of deformed samples increased with extending the number of repetitive upsetting-extrusion cycles.

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