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The paperwork presents the results of the examination of the paper support from travel documents, by analysing the composition of the biodata page, which where differently falsified. For this purpose, the computer analyzed the composition of the tab, which is usually through various kinds counterfeit. By taking very small fragments of these pages, we can get useful information about the methods and techniques used by counterfeiters. The comparative analysis highlights the forgeries and certain connections with the original document. Therefore, there were obtained some data on their scientific investigation and highlighted the method used by forgeries.

Sepsiis syndrome is a common and have devastating implications on health care systems worldwide. Biomarkers may have an important role to highlight the presence, absence or severity of sepsis. Retrospective study was conducted on a group of 81 patients with suspected sepsis, presented in the Emergency Department - Emergency County Hospital St. Spiridon Iasi during 01.09.2014-30.10.2014. The obtained statistical data’s were interpreted using SPSS software and the ROC curve was calculated. The study aims was to establish the following: determining the validity of presepsin as a biological marker in sepsis diagnosis and prognosis; sepsis stratification. The mean age of patients was 64.52 years. Determination of presepsin sensitivity in sepsis early diagnosis was calculated by generating the ROC curve. Following AUC values were found: AUC = 0.709, with a standard error of 0.065 for predicting sepsis; AUC = 0.866, with a standard error of 0.080 for severe sepsis; AUC = 0.864, with a standard error of 0.053 in the presence of septic shock. The average values of presepsin, related with severity of infection, it was found to be 544.39 ± 141.93 pg./mL in case of localized infection; 605.6 ± 59.55 pg./ mL in patients with systemic inflammatory response syndrome; 1283.21 ± 195.74 pg./ mL in patients diagnosed with sepsis; 4787.8 ± 1980.43pg./mL in patients presenting severe sepsis and 3734.88 ± 1732.41pg./mL in patients diagnosed with septic shock. Presepsin level, measured by using quantitative dosage methods, may be helpful in staging patients diagnosed with sepsis and may be used as an indication for initiation of intensive therapy to prevent septic shock. Presepsin level can be used as an early marker of severe prognostic in septic patients.

The aim of the present work was to monitor the adsorption of thyamine hydrochloride (VB1) onto halloysite (HNT) nanoclay in different conditions (contact time, initial pH, temperature and initial concentration). The HNT-VB1 materials were also analyzed by FTIR, TGA, TEM and the release of VB1 was monitored in two different simulated body fluids. Three isotherm models were used to determine the adsorption mechanism of VB1 onto HNT. The Langmuir model showed that the adsorption process is endotherm. The Freundlich adsorption model confirms that this is a favorable process. The adsorption of VB1 onto HNT is a physical process according to Dubinin-Radushkevich isotherm. The release of VB1 from HNT takes place by Fickian diffusion and it was monitored for 24 h. The highest amount of drug released (35%) was registered in simulated gastric fluid (pH 1.2).

Nowadays, membrane technologies are becoming more frequently used for separation of wide varying mixtures result from a lot of industries and can compete successfully with traditional schemes. The aim of this paper was to analyse the use of ultrafiltration with polypropylene hollow fibre membrane in the chemical physical systems instead of Granular Activated Carbon (GAC) filtration. A process data collection was performed and integrated with a characterization of the process effluents in terms of treatability and reusability. In order to evaluate properly the wastewater loading, an analysis course was set. The samples have been gathered for two years; instantaneous samples were drawn from the influent and treated wastewater. Based on daily average values, a general average has obtained. The experimental data were statistically analysed and the average values of the investigated parameters. It was found that ultrafiltration is a good process solution before discharge of the effluent.

The paper describes a comparative experimental - numerical analysis to study the vibration behavior of a fiberglass/polyester composite box housing electronic components inside a satellite. A finite element model was developed in order to predict the natural modes and the values of the natural frequencies of the structure. In order to perform the numerical analyses, specimens made of the analyzed composite material were tested to obtain the elastic constants. The numerical values of the natural frequencies were further compared to those measured experimentally using a PULSE modal analysis system. The differences between results were less than 9%, validating thus the proposed numerical model, which can be further used to predict the behavior of the subassembly subjected to other loads occurring during the launching phase and on the orbit, as accelerations and/or thermal cycles. Since the order of magnitude of the first natural frequencies is important in understanding and evaluating the performance of subassemblies mounted inside satellites, such a study is necessary in the design phase of these structures.

In order to analyze the effect induced by encapsulating the drug in liposomes, comparative studies were performed for control hydrogels and complex systems (the same hydrogels containing liposomes). The results showed that the use of liposomes entrapped within chitosan hydrogels allows a strong decrease of burst effect and, moreover, the mechanism of drug release is a complex Fickian diffusion, consisting of drug diffusion through the swollen hydrogel and/or water filled pores, being continuously fed by calcein loaded in liposomes.

Engineers think twice before using plastic bearings in their designs, because they have trusted steel bearings for years or because they think plastic can’t handle demanding applications or environments. Plastic bearings can endure extreme temperatures, heavy loads and high speeds and offer more freedom when it comes to maintenance. Their resistance to dirt, dust and chemicals make plastic bearings a viable steel replacement. Plastic bearings can reduce costs up to 25%, they are highly wear resistant, with a low coefficient of friction and they can replace pricier alternatives in many applications. Plastic bearings also do not typically need lubrication unless steel balls are used in combination with plastic races and are designed to maintain a low coefficient of friction during the life of the bearing. Compared to steel bearings, which can become pitted and have a higher coefficient of friction, plastic bearings last longer. Also, plastic bearings can be used in wash-down applications, salt water and harsh chemicals without decreasing performance. Water can be considered a lubricant for plastic bearings [1].

This paper introduces some results of the researches that the authors conducted in the field of using plastic materials for plating the surfaces of the guideways for heavy duty machine tools. There are mentioned theoretical aspects about the calculation and selection of these guideways and the results of the experimental researches performed on the occasion of the remanufacturing of a rotary table intended for the machining on two axes of large mass and overall size workpieces, specific to heavy industry. It is also shown the technology of assembling and machining the plates made of plastic materials. It is about the translational sliding guideways and about the rotational guideways too. They operate with intermittent, continuous or hydrostatic lubrication. The research results can be also applied in the case of remanufacturing of other heavy duty machine tools such as: standard or vertical lathes, Gantry type milling machines, grinding machines or table type HBM-s and floor type HBM-s etc.

Clinical performance of restorative materials and their adhesive interfaces can be affected by erosion after rehabilitation of erosive lesions. The aim of the present in vitro study was to evaluate the erosive wear resistance and adhesive bond strength of direct restorative materials, using four different testing tools. Four aesthetic dental filling materials were included in the study: a universal nano-filled composite, a light curing posterior filling composite resin, a tooth-coloured polyacid modified composite resin (compomer) and a coloured compomer indicated in restorations of deciduous teeth. Fifteen specimens were prepared according to each of the four tested restorative materials. Following manufacturers’ instructions for the manipulation/mixing of the materials, adhesive systems and unset pastes were placed in cavities of 4mm length, 3mm width and 1mm depth prepared in bovine extracted teeth and cured. After 24 hours of rehydration in distilled water, each group was immersed in erosive solutions chosen for testing: 1% citric acid and 0.02% phosphoric acid. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) were used in order to analyze the degrees of erosive wear of the materials following exposure to the various erosive solutions. Also, microtensile bond strength (mTBS) was made and the obtained data was analyzed by one-way ANOVA test and two-sample t-test, with a level of significance that was set at p[0.05. Experimental results reveal that the dental filling materials showed different behaviour under the same erosive conditions. These findings suggest that erosive wear resistance of direct dental restoratives could influence their longevity in intraoral acidic conditions.

According to gestational age, two groups were formed: group A (abortion) formed of 19 patients diagnosed with risk of abortion (gestational age < 23 weeks and 6 days) and group B (birth) formed of 32 patients diagnosed with risk of premature birth (gestational age > 24 weeks). We were interested in detecting adverse reactions and complications related to the use of cerclage pessaries and also to determine if this procedure is efficient in preventing premature birth. In addition to the clinical part of this study, we evaluated the mechanism of interaction of the cerclage pessaries with the fluids and the vaginal mucosa by analyzing the structure, design and surface of these devices. Cerclage pessaries are efficient in preventing premature birth. In order to decrease the number and severity of the adverse reaction related to the use of these intra-vaginal devices regular follow-up visits are indicated. Re-sterilization by ethylene oxide procedure of vaginal pessaries is prohibited because it severely modifies the surface of these apparatuses.