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A constant situation present in the anatomy laboratories is represented by the cadavers preservation resulted from dissection. The main requirement for this process is the use of formaldehyde which is a toxic substance probably included in the class of carcinogenic substances. Large specimens resulted from dissection process, such as limbs or trunks, can be preserved only in large containers filled with formaldehyde and for limited periods of time. To remove these issues we used the anatomy laboratory in order to be able to preserve the first sustainable plastinated anatomical specimens. In our study have been used 8 adult human bodies (partial and complete), 6 females and 2 males, aged between 62 and 73. We have removed and dissected brains, upper limbs, kidneys and livers. They have undergone preservation process of plastination.

The work presents the results of a computer simulation of one of the most widespread strength tests, i.e. a static tensile test, performed with the use of two design tools - ANSYS and SolidWorks software. Strength tests were performed with the ZWICK Z100 tensile machine. The shaped sections used in the analysis were made of AW-6060 aluminium alloy. The computer simulation results were referenced to the actual tensile test results and it was found they are comparable. It can be concluded on such basis that a computer simulation is an alternative to time-consuming and costly laboratory tests.

Synthetic meshes are steadily developed and optimized to provide the best biocompatibility, resistance and elasticity with minimal side effects when used in vivo. This article presents mesh parameters, which influence the biological outcomes in surgical cases. Material, structure, resistance to the applied force, elasticity and biocompatibility are listed below in order to clarify the advantages and shortcomings of different mesh types. Future developments in synthetic mesh industry are presented as well in order to improve mesh acceptability in vivo and optimize healing process. There is no ideal mesh, but only prostheses with fewer side effects when correctly used, in accordance with patient needs.

Luffa cylindrica fibers were purified through alkaline treatment and loaded with phosphate as mineral precursor. Their capacity of acting as bioactivator for an inert polymer was evaluated. In this respect, the PO43- - Luffa fibers were loaded in a polymeric matrix known not to promote biomineralization through immersion in mineralization media. The synthesized materials were subjected to alternative Ca/P baths and the formation of mineral was investigated through SEM. Also, the mechanical properties and the water affinity of the un-mineralized and mineralized materials were investigated.

The aim of study was to analyse the activity of four biocides. Assessment was made using the methodology described by the Clinical and Laboratory Standards Institute (CLSI); Antifungal Susceptibility Testing of Yeasts, M27-A3 Approved Standard, in: Candida sake, C. albicans, C. lusitaniae and Rhodotorulla rubra. The outcome, related to the culture2 s cut-off value of optical density (O.D.) was analysed statistically (p = 0.05 or lower) proving that Candida albicans was capable of generating strong biofilms, in the resistance setting (p = 0.001).

The aim of this study was to evaluate the interim veneer restoration, achieved from two types of dimethacrylate based composite resins (Telio CS C&B and Luxatemp Star), by direct technique. Both composite resins performed well according to evaluation criteria: anatomic configuration, marginal adaptation, discoloration, surface texture, postoperative pain and periodontal aspect. Loosening of interim restorations appeared in 25% of cases. Besides advantages, there are some disadvantages associated with direct way of achieving temporary veneers.

In the recent years, engineered nanoparticles (NPs) such as PLGA or poly-lactic-co-glycolic acid, have raised a substantial interest due to their possible medical applications in vaccination, diagnostic imaging procedures, cancer therapy or sustained delivery of drugs. The main aim of the present work is to evaluate key oxidative stress parameters in several organs following NPs administration in an animal model. Our data shows that acute oral administration of PLGA NPs induces a change in the antioxidant status in both rat liver and spleen, but may not induce oxidative stress damage to cell structures such as lipid or protein oxidation.

One hundred micro-implants from two different manufacturers were used in the study. From each manufacturer (Link from MISTM and Yesanchor from OrlusTM) the implants were divided in 5 groups: G0 (n=10) new, unused, G1 (n=10) mini-implants inserted in pig bone and removed, ultrasonically cleaned, followed by autoclave sterilization, G2 (n=10) same insertion protocol of group 2 followed by chemical cleaning with phosphoric gel and autoclave strerilization, G3 (n=10) same insertion protocol of group 1 followed by sandblasting and autoclave sterilization, G4 (n=10) same insertion protocol of group 2 followed by cleaning with distilled water and autoclave sterilization. Maximum insertion torque was recorded and subjected to statistical testing. Our results showed significant differences of the maximum insertion torques between groups of Link mini-implant (p=0.006), and no statistical differences of the maximum insertion torques of the Yesanchor implants (p=0.33). Significant differences (p[0.001) were also recorded between the groups of the two types of minii-mplants when compared. Our findings showed that brand-specific differences in maximum insertion torque exist between the two types of mini-implants.

The activity of using membrane technology has developed fast in the treatment of wastewater, drinking water and process water production. The main challenges in membrane filtration are fouling reduction, permeability increase and high efficiency in retention. The best example of membrane enhancement is increasing hydrophilicity. Nanoparticles have been proven that their presence in the membrane matrix increases the water affinity significantly. Although the zinc oxide nanoparticles have a positive effect over the membrane performance, the influence of zinc oxide (ZnO) nanoparticle size has not been studied enough. Two sizes of nanoparticle of ZnO and three concentrations were used for the preparation of composite polysulfone ultrafiltration membranes. The effects of the ZnO nanoparticles in the membrane matrix on the permeation properties, flux stability and retention were tested. SEM, EDX, porosity and contact angle measurement were conducted in this article, also. The experimental results indicated that ZnO-PSf composite membranes exhibits significant differences in the membrane properties due to nanoparticle addition and regardless of their size it leads to an increase in hydrophilicity, flux, permeability, retention and porosity. Decreasing the nanoparticle size leads to an increase in membrane performance.

There is limited data of short-term outcomes comparing press-fit bipolar and cemented total hip replacements in patients with femoral neck fractures. We therefore aimed to compare the perioperative incidents and immediate outcomes between press-fit stem bipolar head hemiarthroplasty and cemented total hip replacement in elderly patients with displaced femoral neck fractures. We reviewed prospectively collected data from 115 consecutive patients over 12 months. There were 21 cemented total hip replacements and 33 bipolar head press-fit stem hemiarthroplasties, with a male to female ratio of 1:1.84 and an average follow-up of 9.9 months (range 3-15). There were no differences between the two groups with respect to age (mean 77.4 years old), cortical index (0.77/ 0.82, p=0.087), hospitalization (17.7/ 16.7 days, p=0.59), bleeding, blood transfusions (14.3/ 18.2%, p=1.00) and Barthel index preoperatively, at discharge and 3 months (5.67/ 5.48, p=0.62; 10.57/ 10.47, p=0.89; 13.81/ 13.28, p=0.47). For all 54 patients the hemoglobin dropped from 13 to 11.2 g/dL after surgery without difference between implants. The mean duration of surgery was 21minutes (p[0.01) shorter for the press-fit hemiarthroplasty group compared to cemented total hip replacements. Our findings show comparable blood loss and functional outcomes with press-fit bipolar hemiarthroplasty and cemented total hip replacements for treating displaced femoral neck fractures in the elderly. Both were safe and allowed early recovery, with the only significant difference being the longer duration of surgery for the total arthroplasty.