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Abstract:The aim of the study was to create an artificial test-bite design as close as possible to the most commonly used natural test bite - peanuts. \nMaterial and methods. The artificial test bite matrix was developed on the basis of various types of silicones, fillers and plasticizers. Its properties were evaluated by Tira Test machine 2300SE/100kN using both flat surfaces and dental surfaces. Shore hardness was defined by a Mitutoyo Durometer. Results. Those designs of a test bite with good elasticity (No. I and X) required greater efforts to break it down and chew it. The least force to break down the test bite was detected in design No. XVIII, which exhibited a well-defined plasticity and closest structural characteristics to the natural test bite. The stiffness values (N/m) proved to be significantly lower when force was applied by a dental surface in comparison to a flat surface. The former met the requirements for food fragmentation in the oral cavity to a greater extent. The processing of the statistical data verified the reliability of the results obtained (RSD = 1.07%, set criterion ≤ 2%).\nConclusion. All artificial test-bite designs under study displayed sufficient Shore hardness and closely resembled the qualities of natural test bites.
Abstract:Objective: To analyze the role of nursing in the context of improvements in the care provided to the elderly with self - care deficits. Methodology: This is an integrative review of literature with a qualitative approach, using a database such as BIREME, LILACS, SCIELO and nursing journals. Results: It is reported that the family caregiver faces several problems when he assumes this role, a main complaint is not the help of other people, which generates overload. Conclusion: The nurse has a necessary role in the integral health care of the elderly, because with this professional the quality of care can reach levels of excellence, because the importance of this professional is not the cult and the intensity, knowing that they are challenges faced by these professionals are great with the caregiver and the elderly.
Abstract:The aim of this research was to present the capacity of the T-scan 8 system for the articulation of complete dentures in dynamics, by objectively evaluating the results through a functional examination of the masticatory efficiency and investigating the subjective assessments of the patients.\nThirty two patients (16 women and 16 men, aged 71 閸?? 9.28 years) with complete dentures were studied. In the stage of delivering the constructions, articulation and masticatory efficiency were examined by applying an experimental model of the 闁炽儲闃?rotab闁??? artificial mouthful in the sequence of a predetermined clinical protocol. Patient satisfaction was studied.\nThe results showed achievement of normal disocclusion time (DT) (mean 0.15 閸?? 0.10 s), minimum DT (0.06 s), maximum DT (0.38 s) and a median of 0.10 s. For chewing the 闁炽儲闃?rotab闁??? artificial mouthful, the patients used an average of 39.00 閸?? 10 chewing movements for an average chewing duration of 38.06 閸?? 3.184 s at a fraction size of 1.211 閸?? 0.198 mm. There was a statistically significant correlation (R = 0.472, P < 0.001) between the chewing duration and the fraction size. The results were confirmed subjectively.\nThe proposed clinical protocol allows for a modern approach in the articulation of complete dentures under digital control, to achieve functionally fit, bilaterally balanced occlusion.
Abstract:One of the most important current problems is providing population with ecologically pure, high quality fruit juices. Fruit juices are rich in simple sugars, vitamins, phenolic compounds, organic acids, mineral substances and other components, which are useful for human organism. Nutritional composition of fruit juices is very important in the regulation of metabolism. Therefore, the aim of our work was producing juices using the coupage method from pumpkin, dog-rose and persimmon fruits cultivated without medical preparations. \nPumpkin juice was found to be rich in β-carothine-the substitute of vitamin A, nevertheless, vitamin C, phenolic compounds, simple sugars, organic acids and even some mineral elements occurred in small quantities in the composition of this fruit.Dog-rose juice is rich in vitamin C and organic acids, while persimmon juice is rich in glucose, fructose, iodine and phenolic compounds having antioxidant and antibacterial properties. Therefore, a new juice was prepared by blending pumpkin, dog-rose and persimmon juices. According to the results of the degustation the juice resulting from coupage was rated at 9,6 points and had higher qualities compared to other juices.
Abstract:Low power high speed digital systems are the main requirement of this era. Moreover, multiplication part of any digital system is considered speed lim-iting component, because multiplication part of the system is actually among the slowest components of any digital computing system. Vedic multipliers improve the speed of overall digital system due to fast calculations. Furthermore, design-ing any digital circuit using reversible logic technique provides low power loss digital devices. Here, in this paper, we have proposed an optimized approach to design 2×2 size vedic multiplier circuit using reversible logic approach. Proposed design is also compared with existing designs on some selected performance pa-rameters such as total number of reversible logic gates, constant input signals applied, garbage outputs generated and quantum cost. Proposed design approach is synthesized and simulated for Xilinx software and ModelSim simulator. This design may be further explored for the designing of other low power high speed calculating devices.
Abstract:Wireless sensor networks(WSN) is poised with small battery powered devices called sensor, that can sense, receive and transmit the information to the base station (BS). WSN incorporate key challenges that include energy, network scalability, delay, security, routing and so on. Of these challenges energy consumption is considered as a major problem in the research areas of WSN. The consumption of energy will be more during sensing, processing and communication. Among these maximum amount of energy is spent on communication. so, the foremost goal is the maintenance of energy in WSN. The key objective of this paper is to reduce the energy consumption and to extend the network life time. A new methodology is employed which randomly deploy the sensor nodes and optimize the network with EL-ABC protocol. we also introduce agents that maximize the network life time by receiving the datas from cluster head(CH) and send it o the BS.
Abstract:Abstract. Aim. It is known that free-living ciliates quickly react to the slightest changes in environmental conditions. This feature of physiological reactions on the basis of long-term studies made it possible to use some species of free-living ciliates to indicate the degree of organic pollution. Methods. In the period 2012-2016, with 9 stationary sample points in the Samur-Divichi lower, with varying degrees of human influence has been collected and processed 870 soil samples. To ciliates study used silver impregnation methods. Analysis of soil ciliates community structure was carried out using conventional environmental options.
Abstract:The propagation of mobile phone users has increased, and the potential adverse health effects still controversial. The present study aimed to assess the effect of mobile phone-like electromagnetic field on major salivary glands and possible protection using ferulic acid. The rats in the irradiated groups exposed to 1800 MHz mobile phone-like electromagnetic field 5 d/week for 7 week. The treatment groups received ferulic acid (20 mg/ kg B.W. once daily 5 d/week for 2 week) before irradiation. The major glands were examined for pathological changes. The perimeter of acini and duct in addition to an area of acini, duct and lumen were measured. Irradiated glands revealed different degrees of acinar vacuolization and degeneration with ductal dilatation especially the parotid glands. Ferulic acid restored the normal acinar and ductal structure. The acinar perimeter and area of irradiated group were significantly decreased while the lumen and the duct area in addition to duct perimeter were significantly increased. On the other hand, the measured parameters of ferulic acid treated glands were almost similar to the control glands. In conclusion, significant pathological changes induced in irradiated salivary glands could be inhibited by the use of ferulic acid.
Abstract:Here in cotton fabrics were treated with gelatin to enhance its dyeability, color strength using synthesized reactive dyes and antibacterial properties. Pad-dry-cure method was used for fabric treatment, where the pad-bath contains dimethylol di hydroxyl ethelyen urea (DMDHEU) as binder, ammonium dihydrogen phosphate as catalyst, gelatin at concentration (5 %, w/w) and with a non-ionic wetting agent. Then the fabrics were dyed with synthesized reactive dyes. dyeing and antimicrobial activity assessment indicate that there are high quality dyeing properties, where, monochlorotriazine reactive dyes showed higher exhaustion and fixation values, fastness properties and the colorimetric CIE L*a*b* C*h閹猴拷 data of the dyed cotton fabrics . In addition, these reactive dyes have higher antibacterial activity toward Gram negative and Gram positive compared with two widely used antibiotics named ciprofloxacin and tetracycline.