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The passage of single air bubbles through the horizontal interface between viscoplastic and Newtonian fluids, considering various combinations of densities and viscosities for the fluid layers, is studied computationally. The primary focus is on the quantity of liquid transferred from the lower layer (viscoplastic fluid) to the upper layer (Newtonian fluid) as a result of the bubble's ascent, a factor with significant implications for the turbidity of methane-emitting lakes and water bodies. The entrainment characteristics are observed to vary considerably with the bubble shape, within the lower layer and as the bubble approaches the interface. The results show that at Bond number (Bo) > 1 and moderate Archimedes (Ar), prolate-shaped bubbles crossing the interface undergo elongation in the direction of their poles. This elongation is further accentuated when the viscosity of upper layer is less than the plastic viscosity of the lower layer. The bubble is found to break up when leaving the lower layer, of a critical capillary number, Cac ≈ 5. The results show a significant reduction in the volume of entrainment compared with the Newtonian counterpart. This suggests disturbances caused by the rising bubble at the interface dissipate over a smaller region. Four distinct entrainment regimes are identified, mainly indicating the height to which the entrained fluid can be transported away from the interface. In contrast to Newtonian fluids, the volume of entrainment increases by decreasing the viscosity of the upper layer. Interestingly, the heavy viscoplastic fluid that has been dragged up into the light Newtonian fluid does not recede with time. [ABSTRACT FROM AUTHOR]

Maryam Zare,1 Ali Tarighat-Esfanjani,2 Maryam Rafraf,2 Abdolreza Shaghaghi,3 Mohammad Asghari-Jafarabadi,4 Mahmood Shamshiri5 1Department of Nutrition, Khalkhal University of Medical Sciences, Khalkhal, Iran; 2Nutrition Research Center, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran; 3Department of Health Education and Promotion, Faculty of Health, Tabriz University of Medical Sciences, Tabriz, Iran; 4Road Traffic Injury Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; 5School of Nursing and Midwifery, Ardabil University of Medical Sciences, Ardabil, IranCorrespondence: Ali Tarighat-EsfanjaniNutrition Research Center, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, 5166614711, IranTel +98-41-33362117Fax +98-41-33340634Email Tarighat45@gmail.comAim: This study planned to determine:( 1) the behavioral intention or profile of patients with type 2 diabetes mellitus (T2DM) based on the stages of the change model, and( 2) to explore the perceived facilitators and barriers of self-management (SM) in a sample of Iranian patients with T2DM.Methods: This was a mixed method study, accomplished in two phases. In the quantitative phase, 246 subjects with T2DM participated. They were classified according to items such as regular use of blood-glucose-lowering drugs, having a healthy diet and performing physical activity to pre-action and action groups. Socio-demographic and anthropometric information were collected, and a phenomenological qualitative study was conducted, and data collection continued until saturation achieved by 10 subjects in pre-action and 12 subjects in action groups. Four focus group discussions in the field of SM were accomplished. Analysis of quantitative and qualitative data was conducted by the SPSS and MAXQDA software, respectively.Results: The mean age and duration of illness among the subjects were 53.9± 7.1 and 6.9± 4.9 years, respectively. The barriers of SM in action and pre-action stages were as follows: lower socio-economic status, poor performance of treatment team, physical-intellectual factors and lack of planning to change. The facilitators stated in the pre-action and action stage in the field of SM were satisfaction from treatment, planning, belief in diabetes, treatment team’s support, nutritional knowledge, and religious beliefs.Conclusion: This study indicated facilitator and barrier factors in SM based on TTM in action and pre-action groups. Healthcare professionals should consider these findings to improve the patients’ outcomes.Keywords: diabetes mellitus type 2, self-management, healthy diet, exercise

Background and Objective: Multi-walled Carbon Nano Tubes (MWCNTs) as an important element of nanosciences have a remarkable absorption in the region of NIR window (650-900 nm) which can overcome the limitations of deep treatment in photothermal therapy. To disperse MWCNTs in water, it is proposed to attach carboxylated functional group (-COOH) to MWCNTs in order to increase dispersivity in water. Materials and Methods: A stable suspension of MWCNTs-COOH with different concentrations (from 2.5 to 500 μg/ml) was prepared. Then, they were compared for their ability to increase temperature in the presence of 810 nm laser irradiation and through a wide range of radiation time (from 20 to 600 s) and three laser powers (1.5, 2 and 2.5 w). The temperature rise was recorded real time every 20 seconds by a precise thermometer. Results: Absorption spectrum of MWCNTs-COOH suspension was remarkably higher than water in a wavelength range of 200 to 1100 nm. For example, using the concentrations of 2.5 and 80 μg/ml of MWCNTs-COOH suspension caused a temperature elevation 2.35 and 9.23 times compared to water, respectively, upon 10 min laser irradiation and 2.5 w. Moreover, this predominance can be observed for 1.5 and 2 w radiation powers, too. Our findings show that the maximum of temperature increase was obtained at 80 μg/ml concentration of MWCNT-COOH suspension for three powers and through all periods of exposure time. Our results show that the minimum required parameters for a 5°C temperature increase (a 5°C temperature increase causes cell death) were achieved through 2.5 w, 28 μg/ml concentration and 20 second irradiation time in which both concentration and radiation times were relatively low. Conclusion: Our results showed that MWCNTs-COOH can be considered as a potent photothermal agent in targeted therapies. New strategies must be developed to minimize the concentration, irradiation time and radiation power used in experiments.

Background and Objectives: Quantum-dot Cellular Automata technology is a new method for digital circuits and systems designs. This method can be attractive for researchers due to its special features such as power consumption, high calculation speed and small dimensions. Methods: This paper tries to design a three-bits counter with minimum area and delay among the other circuits. As the circuit dimensions are reduced, the area and consequently, the delay are decreased, too. Therefore, this paper tries to design a three-bits counter with minimum dimensions and delay. The proposed counter contains 96 cells and is designed in three layers. It has the least area and delay compared to the priors. Results: The circuit simulation illustrates 0.08 µm2 of area occupation and one clock cycle delay. In comparison with the best previous design, which includes 110 cells, the cells number, area and delay are decreased by 12.72%, 27.27% and 33.33%, respectively. Also, the cost of the circuit has been improved by 54.32%. The power analysis of the design shows 13% reduction in the total energy dissipation of the circuit compared to the best prior work. The circuit reliability versus temperature variations has been simulated and the results represent suitable stability. The fault tolerance of the circuit which is occurred by the displacement faults represents normal operation of the circuit. Conclusion: As the counter is an element which is implemented in several digital systems, its area reduction causes the whole system area to be reduced. Also, the circuit delay has been decreased significantly which means that the circuit can be employed by high speed systems. [ABSTRACT FROM AUTHOR]

Alternate bearing is one of the most important problems in olive production around the world. This experiment was performed on 25-year-old olive trees of Tokhme Kabki cultivar in an olive orchard located in Shiraz, in 2018-2019. In this experiment, the role of normal fruits, shot berries, fruit removal, and Gibberellic Acid (GA3) application on the amount and type of return flower were determined. We demonstrated that seed has a significant role in flower induction in olive. Shot berry fruits actually induced return bloom and removing the fruit before pit hardening stimulates induction of flower bud in 'Tokhme Kabki' olive cultivar. GA3 application before pit hardening significantly inhibited flower formation. Endogenous GA3-like substances was also determined in fruit flesh and seed tissues support the idea that, high concentration of GA3-like during pit hardening is responsible for the inhibition of flowering. According to the rapid increase in GA3-like substances in the fruit tissues, it appears that this compound may be transferred to the buds and then directed toward vegetative growth. Data suggest that GA3-like level in the fruit flesh and seed tissues is one of the main factors in alternate bearing of olive tree. Therefore, thinning the seeded fruit till 6 weeks after full bloom or before pit hardening would be effective in reducing the concentration of GA3 in the olive tree and reducing the severity of alternate bearing. [ABSTRACT FROM AUTHOR]

Objective: The relationship between university and industry and consequently their effects on innovation processes have long been analyzed in various scientific communities. The importance of this connection has caused some of the documents of the Islamic Republic of Iran to refer to it. According, one of the most important steps in the recent policy of the Ministry of Science of Iran doing the compulsory sabbatical related to the industry for newly recruited faculty members in higher education organizations and research institutes. Thus, the present study tried to explain the recent policy of the Ministry of Science, based on an institutional perspective. Materials and Methods: To achieve this, 17 faculty members of universities and research institutes in Iran who were faced with this policy, as main beneficiaries by intensity case sampling method and according to the theoretical saturation of the data was selected. The tool of the study was a semi-structured interview. To analyze the interviews, we used the Colaizzi content analyze and to examine the validity of the research findings, the member checking method was used. Result and Discussion: The Findings of the analysis showed that the policy in relation to the industry has faced some issues such as illegitimacy, coercion, consistency with the interests of policymakers, ignoring disciplinary differences, ignoring economic, sociology, and policy conditions. These issues indicate that the policy is based on the policy created in the oligarchic institutions. [ABSTRACT FROM AUTHOR]