bluuebunny/crossref_metadata_2025 huggingface dataset:
Correlations Composition - Processing - Microstructure - Properties for Ceria - Based Solid Electrolytes
Authors: Ghizdavet Zeno , Stanciu Iuliana Madalina , Melinescu Alina , Ianculescu Adelina
Published: February 2020

The main objective of this work is to study the correlation between composition, microstructure, processing and properties of doped ceria. Doped ceria with heterovalent cations can be used as solid electrolyte for solid oxide fuel cells working at intermediate temperatures (SOFC-IT). This study is made in order to obtain information, which can be useful for further improvement of this type of materials. Multivariate analysis techniques, such as Principal Component Analysis (PCA) and Self-Organizing Maps (SOMs) were used on a database consisting of 18 samples which differ by composition and by processing methods. Experimental data regarding these samples consisted in information about composition, SEM images and the property of choice, the electrical conductivity. SEM images were digitally processed to isolate grain boundaries; on the 18 resulting images it was computed the Fractal Dimension, as a parameter containing both information about size and shape of the grains, therefore characterising the microstructure. All results were, then, subjected to Multivariate analysis taking into account, also, the processing methods. The aim is to extract useful information from the available experimental data. Results encourage us to assume that even identification and diagnose can become possible based on the present work, given an adequate database. The overall procedure can be applied to any crystalline material.
Is there a Need for Own Median Calculation in the Second Trimester Biochemical Markers Screening?
Authors: Navolan Dan , Nicolov Mirela , Vladareanu Simona , Ciohat Ioana , Craina Marius , Tomovic Miroslav , Nemescu Dragos , Onofriescu Alina , Craciunescu Mihaela , Birsasteanu Florin
Published: February 2020

Screening of fetal aneuploidies in early pregnancy is a well-established method in the materno-fetal medicine. The aim of our study was to analyze if the medians recommended by the manufacturers are adequate to perform an accurate screening or if there is a need for own laboratory medians calculation in second trimester biochemical marker screening.Sera were collected between 14 wp and 22 wp from 3374 singleton pregnancies. We analyzed three second trimester biochemical markers (AFP, hCG and free Estriol) concentration in all pregnant women and in a subgroup of pregnant women in which gestational age was determined based on crown-rump length. Our results showed that for all biochemical markers the difference between the manufacturer and the own calculated median was lower than 10% excepting the hCG value in the group of pregnant women in which the gestational age was determined on basis of crown-rump-length. Our results show it is recommended to replace the values of the median for hCG measurement with the own laboratory calculated medians. This does not seem to be necessary in the case of AFP and free Estriol measurement.
1H-NMR Study of Famotidine and Nizatidine Complexes with b-cyclodextrin
Authors: Nita Adriana , Tit Delia Mirela , Copolovici Lucian , Melinte (Frunzulica) Carmen Elena , Copolovici Dana , Bungau Simona
Published: February 2020

The aim of this study was to obtain and to characterize some inclusion complexes of famotidine and nizatidine with b-cyclodextrin (b-CD) in solution. The formation of famotidine- and nizatidine - b-CD complexes were evaluated by means of 1H-NMR spectroscopy. Thereafter, the stoichiometry and association constants of the complexes obtained were calculated via a continuous variation method by using the chemical shifts of specific protons from both host and guest molecules. The association constants calculated are 179.6 M--1for famotidine - b-cyclodextrin complex, and 74.9 M-1 for nizatidine - b-cyclodextrin complex, at 295 K. Due to their better stability, these complexes could be use as oral pharmaceutical preparations with better taste compared with that of free drugs.
The Influence of the Properties of the Material Used for Obtaining Geopolymers on Their Structure and Compressive Strength
Authors: Severin Ilenuta , Vlad Maria
Published: February 2020

This article presents the influence of the properties of the materials in the geopolymeric mixture, ground granulated blast furnace slag (GGBFS) + wheat straw ash (WSA) + uncalcined red mud (RMu), and ground granulated blast furnace slag + wheat straw ash + calcined red mud (RMc), over the microstructure and mechanical properties of the synthesised geopolymers. The activation solutions used were a NaOH solution with 8M concentration, and a solution realised from 50%wt NaOH and 50%wt Na2SiO3. The samples were analysed: from the microstructural point of view through SEM microscopy; the chemical composition was determined through EDX analysis; and the compressive strength tests was done for samples tested at 7 and 28 days, respectively. The SEM micrographies of the geopolymers have highlighted a complex structure and an variable compressive strength. Compressive strength varied from 24 MPa in the case of the same recipe obtained from 70% of GGBFS + 25% WSA +5% RMu, alkaline activated with NaOH 8M (7 days testing) to 85 MPa in the case of the recipe but replacing RMu with RMc with calcined red mud, alkaline activated with the 50%wt NaOH and 50%wt Na2SiO3 solution (28 days testing). This variation in the sense of the rise in compressive strength can be attributed to the difference in reactivity of the materials used in the recipes, the curing period, the geopolymers structure, and the presence of a lower or higher rate of pores, as well as the alkalinity and the nature of the activation solutions used.
Study of Phosphocalcic Glasses from SiO2-CaO-P2O5 System with and Without Silver II. The bioactivity analysis by FTIR, SEM methods and microbiological study of silver-doped glasses
Authors: Avram Daniela , Angelescu Nicolae , Ungureanu Dan Nicolae , Ionita Ionica , Bancuta Iulian , Gheboianu Anca , Lungulescu Eduard Marius
Published: February 2020

The study in vitro of the glass powders bioactivity was performed by soaking them in simulated body fluid for 3 to 21 days at a temperature of 37�C and pH = 7.20. The synthesis de novo of hydroxyapatite, post soaking was confirmed by Fourier Transform Infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The study of the antimicrobial activity was performed by microbiological examination on two strains of pathogenic bacteria involved in postoperative nosocomial infections.
Skin Specific Cells and UVB Damage An experimental assessment
Authors: Pavel Ioana Zinuca , Iftode Oana Andrada , Pinzaru Iulia , Coricovac Dorina , Moaca Alina , Farcas Claudia , Simu Sebastian Claudiu , Soica Codruta , Dehelean Cristina , Motoc Andrei
Published: February 2020

The alarming increased incidence of skin cancers is closely related to ultraviolet radiation exposure, known to induce cellular transformation in epidermal and dermal layers. The current study describes the behavior of normal (human keratinocytes � HaCat and fibroblasts -1BR3) and tumor cells (human � A375 and murine � B164A5 and B16-F0 - melanoma) after UVB irradiation. A dose of 40 mJ/cm2 (312 nm) led to a decrease of both normal and tumor cells viability in a post-exposure time dependent manner, the most statistically significant reduction being recorded at 24h post-exposure. Moreover, some changes in the shape of cells exposed to UVB were detected. Our results confirm the cytotoxic effects associated with UVB exposure and could be further employed to evaluate the photo-protective effects of different agents.
Considerations on Thermal Behaviour and Porosity of Renal Calculi in Bisphosphonate -Treated Postmenopausal Women
Authors: Tanasescu Rodica Narcisa , Bardan Razvan , Ledeti Adriana , Ledeti Ionut , Matusz Petru , Balint Germaine Savoiu , Bolintineanu Sorin Lucian
Published: February 2020

A longitudinal, randomized, five year follow-up clinical and experimental study was conducted during May 1, 2011 - June 30, 2016. A number of 125 eligible postmenopausal women (BMD T-score spine (-2.8 � 0.5)); BMD at the femoral hip (-2.6 � 0.8), treated only with biphosphonates, were enrolled in the study. The patient�s age ranged between 60 and 65 years. All the women were stone formers, with more than five episodes of crystalluria in the last five years. Exclusion criteria: kidney chronic diseases, use of drugs known to affect bone metabolism and renal function, patients with multi-morbidities. The aim of our study was to assess the connection between postmenopausal osteoporosis and the risk of worsening calcium balance in urolithiasis, based on the complex thermogravimetric findings and porosity studies of renal stones eliminated by these patients. The study of renal-urinary concretions offers the possibility to amplify the specific effects of the thermal decomposition processes of substances, reflecting the sample�s global composition. The research of calculi porosity gives information about the dissolution possibilities of the renal-urinary concretions. In conclusion, in postmenopausal women, proper administration of bisphosphonate therapy must accompany the supplementary medication with calcium and vitamin D, always correlated to the metabolic status of the osteoporotic patient.
An Intelligent Framework to Manage and Control an Autonomous Platform for Detection, Inspection and Monitoring Applications in Chemical Environments
Authors: Andruseac Gabriela Gladiola , Pasarica Alexandru , Brezuleanu Carmen Olguta , Ignat Gabriela , Brezuleanu Stejarel , Costuleanu Carmen Luiza
Published: February 2020

Implementing an intelligent framework using an autonomous robotic platform offers an effective and versatile solution for monitoring chemical environments. The robotic platform can be customized by adding different types of sensors depending on the desired application. The intelligent control system is realized using a PID control line tracker algorithm allowing it to cover a larger area for data acquisition for further analysis. The data is logged in terms of platform position based on GPS coordinates and time stamp and time interval between sampling. We were able to test the behavior of the developed robot in aggressive chemical environments- acid and base- as well as in experimental ambient conditions (variable concentrations of O2 and CO2). The only limitation we found this moment is the concentrations of acids and bases to be used (Perchloric acid, Hydrochloric acid, Sulfuric acid, Acetic acid, Methanesulfonic acid, Sodium hydroxide, Potassium hydroxide, Sodium carbonate, Sodium sulfate, Sodium fluoride) starting from the observed and proved damage on the plastics of the wheel.
Hydroxyapatite-supported Silver Nanoparticles and Preliminary Investigations of their Catalytic Potential
Authors: Ignat Leonard , Ignat Maurusa Elena , Gradinaru Irina
Published: February 2020

The hydroxyapatite-supported silver nanoparticles were synthesized and used as a new type of catalyst for the discoloration of a model cationic dye in a Fenton-like process. The structure and morphology of the catalyst were investigated by FTIR, TEM and SEM before and after reaction. The main factors that could influence the catalytic activity were summary investigated. The catalytic activity was monitored by evaluating the discoloration degree from the absorbance data recorded in the visible spectra. The results obtained during these preliminary investigations are very promising from applicative point of view.
Influence of the Climate Changes on the Human Life Quality,in Rural Areas
Authors: Mocuta Dorina Nicoleta
Published: February 2020

Humanity is currently facing global climate changes and their disastrous effects, such as: increasing air and oceans water temperature, increased flood risk, drought, lack of drinking water, increased risk of fire and reducing natural vegetal resources, changes in ecosystems and degradation of natural resources, increased risk of diseases. The changes at climate and ecosystems level are endangering even the foundations of the human health (the access to adequate food resources, clean air, drinking water and safe housing) and represent at the moment the greatest challenge of the 21st century, with regard to public health [1].
CIELAB and Thermal Properties of Sesame Food Oil Under Antocyanin and UV Influence
Authors: Popa Simona , Boran Sorina
Published: February 2020

One of the most serious problems of the food industry is lipid oxidation, which decreases nutritional quality, increases toxicity, and alters texture and color of the food in question. Research suggests that oxidation of lipids from the diet may play a direct role in the development of chronic diseases in the human body. Natural antioxidants may be added directly to foods as primary antioxidants, which donate hydrogen atoms to quench peroxyl radicals before they can further react with unsaturated lipids. Antioxidants significantly extend the shelf life of foods containing lipids susceptible to oxidation such as vegetable oils. Wild berries are a potential source of natural anthocyanin antioxidants. This paper presents experimental results obtained using antocyanins from Vaccinium Vitis - Idaea Fruits, upon color and thermal properties of sesame food oil, which was exposed to UV radiation.
The Influence of Cookware on the Concentration of Trace Metals and Lipid Peroxidation in Pork Muscle
Authors: Papuc Camelia , Chera Irina , Predescu Corina , Nicorescu Valentin , Gajaila Iuliana , Goran Gheorghe Valentin
Published: February 2020

To assess cookware�s influence on the concentration of essential and non-essential trace metals and on the lipid peroxidation process in pork muscle during heat treatment, meat samples were cooked without the addition of oil, salt or spices, at a temperature of 200�C � 2�C for 50 minutes, in pans made of aluminium, ceramic-coated aluminium, brass and stainless steel. Fe, Cu, Zn, Mn, Sn, Ni, Cr, Ti, Al, Pb, Cd and U in samples were subsequently determined by optical emission spectrometry (OES). In order to assess the intensity of lipid peroxidation, peroxide value (PV) and thiobarbituric acid reactive substances (TBARS) were determined by colorimetric methods.
Adiponectin mRNA and Metabolic Profile in Malignant Obesesity
Authors: Verdes Gabriel , Duta Ciprian Constantin , Popescu Roxana , Mituletu Mihai , Ursoniu Sorin , Fulger Octavian Lazar
Published: February 2020

The aim of our study was to assess mRNA levels in visceral fat tissue and to correlate them with clinical-biological parameters in morbidly obese patients. 38 morbidly obese patients were selected and 8 cases of non obese subjects. The expression levels of adiponectin mRNA were determined through RT-PCR. Also we assessed biochemical parameters like seric glucose level, total cholesterol and triglicerides. The expression levels of adiponectin mRNA were correlated with demographic parameters (age, sex, BMI) and with clinical parameters (HTA, hypothyroidism and type 2 diabetes). This study showed significant correlations between adiponectin mRNA levels with obesity, age, triglicerids, total cholesterol and hypothyroidism. In conclusion, the expression level of adiponectin could be used as a molecular marker in the management of obesity.
Optimization of Gold Nanoparticles Synthesis using Design of Experiments Technique
Authors: Turcu Stiolica Adina , Popescu Mariana , Bubulica Maria Viorica , Oancea Carmen Nicoleta , Nicolicescu Claudiu , Manda Costel Valentin , Neamtu Johny , Croitoru Octavian
Published: February 2020

Gold nanoparticles are considered the newest drug carriers for different diseases. Therefore it is appropriate continuous optimization of their preparation. In this study, gold colloids with an average size of 1 - 26 nm were obtained by the reduction of tetrachloroauric acid with trisodium citrate. The nanomaterials were characterized by UV-Vis spectroscopy and dynamic light scattering technique. In addition, zeta potential was measured for samples synthesized in order to determine the stability of the colloids. A Two-level Full Factorial design was chosen to determine the optimum set of process parameters (chloroauric acid concentration and sodium citrate concentration) and their effect on various gold nanoparticles characteristics (size and zeta potential). These effects were quantified using Design of Experiments (DoE) with 5 runs and 1 centerpoint. The selected objective and process model in this investigation are screening and interaction. Findings from this research show that to obtain particles larger than 35 nm, it is recommended to increase sodium citrate concentration, at low chloroauric acid values. These conditions will help to achieve smaller zeta potential, too.
Carduus nutans L and the Effect on the Heavy Metals and Microenvironment Biota
Authors: Cojocariu Luminita , Bordean Despina Maria , Breica Borozan Aurica , Nita Simona , Horablaga Adina
Published: February 2020

The aim of the study was to identify the effect of Carduus nutans L on the heavy metals and microenvironment biota. Ten plants of Carduus nutans L were collected togheter with the rhizosphere soil and as reference the soil was collectued from an abandonated pasture where no vegetation was growing. The metal concentrations in the filtrate were determined by flame atomic absorption spectrophotometry and the total number of bacteria and actinomycetes from the average soil samples was established. Based on the mathematical models we managed to identify the effects of the heavy metals present in the Carduus nutans L rhizosphere soil samples on the development and presence of bacteria and actinomycetes colonies. We can state that iron and manganese influence the CFU of bacteria and actinomycetes and these in their turn have an impact on the zinc concentration in soil which will influence total chromium content and copper concentrations.
Photophysical and Photochemical Properties of Polyurethane Coumarin Studied by Means of Electronic Spectra
Authors: Strat Mitachi , Buruiana Emil , Dumitriu Dan , Sandu Andrei Victor , Gurlui Silviu
Published: February 2020

The spectroscopic and photochemical properties of polyurethane coumarine (PUC) in dimethyl sulf-oxide (DMSO), thetra hydro furan (THF), dimethyl formamide (DMF) and film state were investigated at room temperature under one photon excitation. Photodimer products were formed via UV irradiation. Syn head-to-head and syn head-to-tail photodimers were formed under one-photon (broadband UV) irradiation in polar solvents. The spectral investigation of the photochemical products of PUC revealed efficient fluorescence emission in the spectral region 300�400 nm, attributed to the syn-head-to-tail dimers of PUC. The results show that under irradiation of l ] 310 nm photodimerization process are increased and under UV irradiation with l [ 260 nm, photocleavage degree have been evidenced, too. Fluorescence spectra analysis of PUC in polar and film-based solvents reveals another very important result. The 375nm fluorescence wavelength of the PUC (exciting beam 310 nm) is about 30 times more intense than the same maximum in THF and in DMF. This result indicates a new method to confirm that PUC film photodimerisation occurs especially at its surface.
Evaluation of Dentinal Changes Following Application of Three Different Desensitizing Agents
Authors: Stoleriu Simona , Pancu Galina , Ghiorghe Angela , Sincar Dorina Cerasella , Solomon Sorina , Andrian Sorin , Iovan Gianina
Published: February 2020

The aim of this in vitro study was to evaluate the effect of three desensitizing tooth pastes on the dentinal tubule occlusion. Thirty dentin discs having a thickness of 3 mm were obtained by cutting human teeth. The discs were submersed in citric acid for 30 seconds to open the dentin tubules. Then the discs were cut in two halves. In each group 10 halves were kept in 0.9% NaCl solution) and the other 10 halves were exposed to the action of one of the tested desensitizing toothpastes. The dentin samples were placed in the machine designed to simulate tooth brushing. Three commercial desensitizing toothpastes were chosen to be applied on dentin surface. The morphology of dentin samples and the level of tubule occlusion was scored using scanning electron microscope. All the three desensitizing toothpastes demonstrated significant effects on dentinal tubule occlusion. The tooth paste containing arginine and calcium carbonate as active ingredients showed the highest degree of tubule occlusion, followed by the dentifrice containing strontium acetate and sodium fluoride.
Maize Stalk as Natural Ion Exchanger for Hazardous Pollutants
Authors: Marin Nicoleta Mirela , Pascu Luoana Florentina , Stanculescu Ioana , Iordache Ovidiu , Jianu Denisa , Petrescu Lucian , Badea Irinel Adriana
Published: February 2020

This paper recommends maize stalk as a cheap natural ion exchanger. Ion exchange equilibrium was studied using thermodynamic and kinetic models. The results showed a high selectivity towards cationic species of antimony (III), molybdenum (VI), lead (II) and arsenium (III). Waste waters and sediments from tailing ponds samples were analysed.
Strontium Ranelate in the Healing of Fractures Complicated with Delayed Union. It is Really Effective?
Authors: Sirbu Paul Dan , Tudor Razvan , Veringa Vlad , Ciuntu Bogdan Mihnea , Radu Valentin , Ciubara Bogdan , Badulescu Oana Viola
Published: February 2020

Osteoporosis is a systemic skeletal disease characterized by low bone strength, which leads to an increased risk of fracture. The primary objective of osteoporosis treatment is the prevention of fragility fractures and the secondary objective is their rapid healing if they occur. Strontium ranelate is an antiosteoporotic therapeutic agent with a double action mechanism: the increase of bone formation and the decrease of bone resorption, contributing thus to the improvement of bone healing. Preclinical studies have demonstrated the efficacy of strontium ranelate for the improvement of bone healing and bone microarhitecture, as well as of the osteointegration of implants. Some clinical cases have been reported regarding the efficacy of strontium ranelate in the healing of long bone fractures complicated by nonunion or delayed union. In the present study we have reported 2 clinical cases that demonstrate the effectiveness of the treatment with strontium ranelate (Osseor) for 3-6 months in the healing of complicated long bone fractures with delayed union. Our cases confirm the results of the open label study CL3-12911-036 (delayed union and non-union fracture study), where the treatment with 2 g/day of strontium ranelate improved healing and led to a better quality of life. Even if there are some cardiovascular contraindications, strontium ranelate is proven to reduce vertebral and non-vertebral fracture risk in osteoporosis and in the same time improves bone microarchitecture and accelerates fracture healing.
Effect of the Sterilization Procedures of Different Surgical Meshes for Abdominal Surgery
Authors: Earar Kamel , Gradinaru Sebastian , Pariza George , Miculescu Florin , Antoniac Aurora , Cojocaru Vasile Danut , Mohan Aurel , Pintili Gina , Grigorescu Dan Ovidiu
Published: February 2020

The surgical meshes selection, according to the structure and porosity of the biomaterial type and meshes design, is directly dependent on the surgical procedure used and interaction between biomaterial type and abdominal viscera. Surgical mesh must provide sufficient biomechanical strength in order to assure the physiological requirements in order to protect the soft tissue defects. The large variety of biomaterials used in abdominal surgery and the multitude of surgical fixation procedures show that we are still far from the ideal prosthesis. The main objective of this paper is to determine the effect of the sterilization procedures of some surgical meshes, with different design and made of different materials, on their structure and properties of interest. Experimental research was conducted on three types of surgical meshes, different from material and design point of view. Fourier Transform Infrared (FTIR) Spectroscopy was used to evaluate the structural characteristics of the samples. In the evaluation of the surface properties, scanning electron microscopy (SEM) was used for the qualitative assessment of surface morphology and contact angle determinations (CA) to determine the wettability properties. The sterilization process used was chemical sterilization with ethylene oxide, a procedure used by surgeons in clinical practice. According to the experimental research, the negative effects of the sterilization process on surgical meshes used in abdominal surgery are accentuated for the samples sterilized with ethylene oxide for three times, while their sterilization only one cycle does not significantly affect the surface properties and tensile strength of surgical meshes, regardless of the design and material of which they are composed.
Effect of Annealing on the Curie Temperature in the Bulk Amorphous Alloys
Authors: Jez Bartlomiej
Published: February 2020

The paper presents results of research for volumetric amorphous alloys Fe61+xCo10-XY8W1B20 where x = 0,12 in the shape of plater of 10mm x 5mm x 0.5mm diameter. Amorphous Samales were annealed at 953K for 10 minutes what caused their partial crystallization. As a result of the thermal interference in the volume of alloys, three different crystalline phases were formed aFe, Fe5Y and Fe3B. For samples after solidification and after thermal treatment thermomagnetic studiem were conducted. For amorphous alloys, only one ferro-paramagnetic transition was visible, and for the alloys after the isothermal annealing process there were two inflections on the curve .m0Ms (T) corresponding to the two Curie temperatures. These intersections came from two amorphous phases. As a result of the research, it was found that these alloys crystallized in the primal crystalization. Crystallization was the reason for the increase of the first Curie temperature of the amorphous matrix while retaining its decrease with cobalt additive. The value of the second Curie temperature in the alloys after heating was found to depend mainly on the size of the crystallization products and in particular on the Fe5Y crystallite size.
Marginal Fit Evaluation Trough Micro-CT Technology of Pressed vs Milled Ceramic Inlays
Authors: Manole Marius , Berece Cristian , Florea Adrian , Burde Alexandru Victor , Sinescu Cosmin , Negrutiu Meda Lavinia , Szuhanek Camelia , Baciu Sorana
Published: February 2020

The goal of the present study is to compare the marginal fit using microCT of ceramic inlays obtained using two different technologies: pressing technique (lithium disilicate) and milling technique (milled leucite glass-ceramic). After extraction of four caries-free mandibular first molars, first class inlay cavities were prepared. For each tooth two inlays were manufactured- one by using pressed lithium disilicate (Emax) (n=4) and one by using milled leucite glass-ceramic (n=4). The marginal gap was analyzed circumferentially at the occlusal margin using a table-top Bruker micro CT, by measuring the distance at the occlusal limit of the cavities, between the restoration and the tooth in several points for every surface of each tooth before cementing. Data were analyzed statistically using One �way ANOVA with Tukey�s Multiple Comparison Test performed using 5.00 for Windows (GraphPad Prism 5.00 Software, San Diego, California USA). When the marginal gaps of the inlays made out of different materials on the same tooth were compared, only one result had no statistical significance. The program expressed also results by comparing the gaps of pressed vs milled restorations on different teeth. 11 out of 16 results had statistical significance. Although statistical significance between the two studied materials, we can conclude that both used materials offer a good marginal adaptation within the acceptable limits. By summing up the gathered data we can conclude that the milled ceramic shows a better marginal fit than the pressed ceramic.
Negative Pressure Therapy in Abdominal Compartment Syndrome
Authors: Ciuntu Bogdan Mihnea , Vasiluta Ciprian , Anton Nicoleta , Ciuntu Roxana , Damian Mihaela , Ciumanghel Adi , Blaj Mihaela , Azoicai Doina , Georgescu Stefan Octavian
Published: February 2020

The abdominal vacuum-assisted closure (VAC) system has been introduced, providing a new possibility to treat an open abdomen. Abdominal compartment syndrome has a great relevance in surgical practice and patient care in critical condition due to the effects of increased pressure in the enclosed space of the abdomen can lead to multiple organ failure. A prospective study was conducted on a sample of 15 patients with severe acute pancreatitis (SAP) was retrospectively analyzed, following the incidence of intra-abdominal hypertension (IAH) and abdominal compartment syndrome (ACS),the effectiveness of the therapeutic methods applied in reducing the intra-abdominal pressure (PIA), the evolution of severity scores, lenght of stay in intensive care unit between January 2014 - March 2017, following negative pressure therapy. There were used vacuum assisted closure devices (VAC � -Hartman) in order to apply negative pressure to the open abdomen, while complying with specified settings in accordance with patients� outcome. Surgery for abdominal decompression in PAS with SCA is an emergency and was imposed on 14 of the 15 patients . In the studied group, the first decompression procedure was performed on days 2 to 5 from intake, as PIA increased in evolution despite medical methods. Only 1 patient hospitalized with SAP PIA decreased by medical methods and after haemofiltration. Acute severe pancreatitis remains a serious pathology in spite of a maximum medical and surgical therapy.Continuous venous haemofiltration has contributed to lowering intraabdominal pressure. Surgery with decompression vacuum systems with negative pressure lead to a significant decrease in PIA.
The Biochemical Effect of Laparoscopic Sleeve Gastrectomy on Serum Magnesium Levels
Authors: Timofte Daniel , Ochiuz Lacramioara , Ursaru Manuela , Ciuntu Bogdan , Hristov Ioana , Puia Ion Cosmin , Calu Valentin , Mocanu Veronica
Published: February 2020

Lately it is generally accepted that bariatric surgery is one of the most effective treatment of morbid obesity. Also, the importance of studying the effects of serum magnesium levels on general health comes from data that shows that a low serum magnesium concentration increases the risk of all-cause mortality when added to the conventional cardiovascular disease risk factors. Thus, in the present report we decided to study how laparoscopic sleeve gastrectomy affects the levels of serum magnesium in obese populations. Our results showed that patients that underwentlaparoscopic sleeve gastrectomy surgery had an increased circulating magnesium level. However, further detailed investigations are needed to identify the exact underlying mechanisms. Furthermore, the role of magnesium in obesity and comorbid conditions should be established, to answer the question whether or not dietary magnesium deficiency is a significant nutritional concern.
Comparative Analysis of the Components Obtained by Additive Manufacturing Used for Prosthetics and Medical Instruments
Authors: Rontescu Corneliu , Cicic Dumitru Titi , Amza Catalin Gheorghe , Chivu Oana Roxana , Iacobescu Gabriel
Published: February 2020

This paper presents a comparative study on the microstructural and mechanical characteristics of a biocompatible titanium and Co-Cr alloys used in prosthetics implants and medical instruments fabrications. The samples used for the analysis were obtained by applying the additive manufacturing process called Direct Melting Laser Sintering. Following the analysis of the results obtained for the two sets of samples it was observed that the thermophysical properties of the materials influence the quality of the obtained surfaces.
Different Methods of Gas Dehydration -Compared Analysis on Real Casuistry
Authors: Stefanescu Dan Paul
Published: February 2020

In order to be transported and used under secure conditions, the natural gas must meet a set of quality requirements that also include a maximum value of the dew point for water from the commercial delivery/pickup point. This assumes the treatment of natural gas in order to reduce the water vapour content, using dedicated equipment, named gas drying or dehydration stations. The materials or substances used for gas dehydration, on an industrial scale and for many years, in the natural gas production areas, are part both of the adsorbent substances category as well as of the absorbent substances category. The paper presents the theoretical and practical aspects regarding the determination of gas humidity and a synthesis of the real casuistry related to exploration of gas dehydration stations by underlining the problems concerning the proper performance of these stations.
Evaluation of the Adhesion of a Novel Design of Veneers to Dental Materials
Authors: Maroiu Alexandra Cristina , Sinescu Cosmin , Negru Radu , Marsavina Liviu , Bretean Ioana Delia , Duma Virgil Florin , Rominu Mihai , Bortun Cristina Maria , Negruiu Meda Lavinia
Published: February 2020

The aim of this in vitro study was to assess a new design that, to our knowledge, we have introduced (patent pending) for indirect dental veneers. Their effect on the retention and adhesive properties at their interfaces have been studied. Fourteen high performance polymeric (PEEK) dental veneers have been elaborated using a computer-aided-design (CAD) software and then milled using a computer-aided-machine (CAM). They were divided in two experimental groups: seven classical veneers with a liniar marginal contour and seven dental veneers with the novel proposed sinusoidal marginal design. All the samples have been bonded to polymeric blocks that had the vestibular face prepared in a specific way for each group. The values of the retention and adhesive forces were tested in vitro by applying bending forces on the incisal edge of the veneers, from the oral to the vestibular direction. A 50% increase of the values of these forces for the novel design with regard to the classical one has been demonstrated through the study.
Training the Future Trainers - Intensifying Anti-smoking Education for a Better Community Health
Authors: Jimborean Gabriela , Ianosi Edith Simona , Csipor Alpar , Postolache Paraschiva
Published: February 2020

To assess the knowledge about harm of smoking among medicine students; exploring the tobacco prevalence in students; training the future trainers in antismoking activity. Questionnaire study in 260 medicine-students (80 males, 180 females from general-medicine and college) before and after antismoking training. Smoking is intensively spread among students (active smokers 33.84%, ex-smokers 15.38%). Smoking was much higher among males compared to women (51.25% vs. 26.1%). 68.1% were moderate-consumers (10 cigarettes/day) and 31.8% heavy-smokers (�20 cigarettes/day). 56% of smokers began smoking between 13-18 year-old and 25% before 16. 65.9% had at least 1 parent-smoker in their family, 45.4% had a partner/close friend who smoked. 89.2% from the entire group were eager to improve their skills for a future antismoking activity. We found 42.6% alcohol users. Initially medicine-students� knowledge concerning the side effects of smoking was insufficient (20% correct answers). We repeated the test after 2 h course and 1-week stage in Pulmonology Clinic. After training, the amount of knowledge in the field increased impressively (88.4% correct answers). We used modern study techniques: case based and team based learning. 31.8% of trained students stopped smoking after our course.The medicine students represent a crucial segment in the fight against smoking. Information acquired at the pulmonology stages/courses had a huge contribution in smoking cessation and their antismoking activity. Training the future health promoters is a priority and may be an issue for a smoke-free behavior in general population.
Authentication and Evaluation of the Technique of Minting the Romanian Coins of the 20th Century. I
Authors: Marin Sebastian Laurentiu , Mardare (Balusescu) Georgiana , Paduraru Marius , Roman Claudiu , Sandu Ioan Gabriel , Olariu Romeo Iulian , Arsene Cecilia , Vasilache Viorica
Published: February 2020

The present work highlights the results of optical and electronic microscopy analyses performed on fifteen selected outdated 20th century Romanian coins. The obtained results brought significant contributions in establishing specific archaeometric characteristics of corrosion coins products generated within the in-use and demonetization periods, under the action of both natural and anthropogenic factors. The work was mainly aimed in identifying the nature of the alloy and of the raw material used during coins minting, with specific emphasize on their resistance toward the action of various natural and anthropogenic factors. Emphasize is also given to the manufacturing techniques, edition characteristics and the in-use-interval. Performed elemental chemical analysis clearly showed that major elements abundances are highly correlated with coins origin area and their minting period.
Influence of the Environmental Protection Expenditure Dynamics on the Economic Growth in Romania During 2008-2015
Authors: Ladaru Georgiana Raluca , Dracea Raluca
Published: February 2020

Based on the data series on environmental protection expenditure and the evolution of the GDP, this research examines the congruent influence of the environmental protection expenditure in Romania on the economic growth. The first section of the research includes the experimental part, with a brief presentation of the data used and the methodology. The following section presents the outcomes, the debate and the conclusions. The research provides evidence of the influence of environmental spending by different producer groups in order to explain some fluctuations in the GDP growth in Romania.
Geometrical Nonlinear Analysis of Slender Micro Arch-Beams Pulled by Magnetic Loadings
Authors: Yau J. D. , Kuo S. R.
Published: February 2020

In this study, a nonlinear model of micro arch-beams under the action of electrostatic loadings with an initial air gap is presented. Based on the well-developed 3D beam theory proposed by Yang and Kuo [4], the arch beam is modelled as a series of uniform straight beam elements and the pull-in magnetic force is simulated as an electric-induced force by an electrode lying. Then the nonlinear structural analysis of snap-through and pull-in stability for a simply supported shallow arch subjected to a concentrated electrostatic loading will be investigated. To tackle the path-dependent features of electric forces due to presence of air gaps and nonlinear deformations, this study regards the electric forces as pseudo-forces acting at the arch-beam and solves the structure equations using an incremental-iterative procedure. From the numerical results, the present approach demonstrates that the micro-arch beam has the capacity to withstand further electrostatic loading after the snapthrough jump.
Ordering Fast Food: Service Encounters in Real-Life Interaction and in Textbook Dialogs
Authors: Nguyen Hanh thi , Ishitobi Noriko
Published: February 2020

In this paper we compare authentic fast-food ordering transactions with EFL textbook dialogs in order to assist teachers and materials writers in the development of students’ communication skills. Using conversation analysis (CA) and drawing on the concepts of communicative competence and interactional competence, we first provide a detailed description of a small sample of real-life transactions and then compare these with the dialogs in textbooks used in Japan, including some successive editions. We demonstrate that the textbook dialogs differ from the recorded real-life interactions in the sequencing of actions and completeness of actions. In the context of the findings, we suggest implications for language teaching and materials development.
本論は、学習者のコミュニケーション能力の育成を目指す教師や教科書執筆者に助力するため、ファストフード店での注文のやりとりについて、オーセンティックな対話とEFL教科書にある対話文とを比較する。会話分析（CA）の手法を用い、コミュニケーション能力やインタラクション能力の概念に基づいて、まず現実のやりとりのデータサンプルを詳細に記述し、その後日本で使われている教科書の対話文と比較する。ここで検証された教科書の対話文が、録音された現実のやりとりとは一連の行為進行や行為の完了の面において異なっているということを論証する。この研究結果に照らして、言語教育や教材開発への提案を行う。
Three Tales of Language Teacher Identity and Student Motivation
Authors: Cowie Neil , Sakui Keiko
Published: February 2020

In this study we investigated how EFL teachers perceive student motivation and how their teacher identities influence their strategies to motivate students. The results of in-depth interviews with three Japan-based EFL teachers suggest that they have a complex understanding of learner motivation, which they formulate by amalgamating accepted motivation theories and their own experiences and observations about their students. The teachers recognize their own impact on influencing learner motivation but they also acknowledge their limitations. The strategies that the teachers use to motivate their students vary according to their experience, beliefs, and local contextual factors. We discuss implications for further motivation research as well as classroom practice.
本研究は、英語教員が学生の動機づけをどう理解し、教員のアイデンティティーが動機づけを促すストラテジーとどう関係があるかを調査したものである。日本で英語を教える３人の教員のインタビューデータによると、この３人の教員は、既存の動機づけに関する理論を理解しながら、自分たちの経験や観察に基づいた独自の動機づけの考えをもっており、それらを総括した視点より、動機づけを理解しているといえる。これらの教員は、学生の動機づけをある程度は向上できると考えている一方、それには限度があると述べており、動機づけのストラテジーは、それぞれの教員の経験、考え、また教育環境によって異なることも明らかになった。本稿は、動機づけに関する研究、また教室での実践面についての提言についても言及している。
Perspectives: The Impact of the New National Senior High School English Curriculum on Collaboration Between Japanese Teachers and Native Speakers
Authors: Glasgow Gregory Paul
Published: February 2020

In this paper I discuss the impact of the Ministry of Education’s new national senior high school Course of Study for Foreign Languages on collaboration between Japanese teachers of English and native speakers of English. In consideration of the new curriculum’s request that classes be conducted in English and its reorganization of all English subjects, I draw upon frameworks in language-in-education policy and planning (Kaplan & Baldauf, 2003; Liddicoat, 2004) and highlight potential issues concerning its implementation at the local level.

本研究では文部科学省の新しい外国語学習のための指導要領が日本人教師と英語母語話者との間の連携に与える影響について議論する。新しいカリキュラムの全体目標と全英語科目の再構成に鑑み、本研究では教育における言語政策・計画の枠組み（Kaplan & Baldauf, 2003; Liddicoat, 2004）から現場レベルで実施する際に起こりうる問題を明らかにする。
Pengaruh Kemampuan Awal terhadap Prestasi Belajar Matematika Siswa
Authors: Zulkarnain Ihwan
Published: February 2020

Tujuan penelitian ini adalah untuk mengetahui dan membuktikan secara empiris Pengaruh Kemampuan Awal Siswa Terhadap Prestasi Belajar Matematika. Metode penelitian yang digunakan adalah metode survei dengan analisis regresi sederhana. Dalam penelitian ini pendekatan yang digunakan adalah pendekatan kuantitatif yang merupakan konsekuensi bahwa seorang peneliti harus bekerja dengan angka-angka sehingga memungkinkan teknik analisa statistik. Penelitian dilaksanakan di SMK Informatika Bina Generasi Kabupaten Bogor tahun ajaran 2018/2019 kelas X dengan jurusan Multimedia. Pengambilan sampel dalam penelitian ini adalah simple random sampling. Tahap yang dilakukan sebanyak 3 stage (tahap), yaitu: tahap pertama memilih kelompok belajar (pada penelitian ini, yang dipilih kelompok belajar reguler), tahap kedua memilih kelas (rombongan belajar), dan tahap ketiga memilih subjek penelitian (siswa). Pengumpulan instrumen yang digunakan untuk pengumpulan data peneliti adalah tes sebanyak 10 soal Uraian untuk kemampuan awal dan 10 soal untuk prestasi belajar matematika. Berdasarkan perhitungan yang telah dilakukan pada taraf signifikan 0,05, maka diperoleh Fhitung > Ftabel ( 4,46 > 3,00) maka H1 diterima yang berarti bahwa terdapat pengaruh yang positif antara kemampuan awal terhadap prestasi belajar matematika.
ANALISIS HUBUNGAN PELAYANAN DENGAN KEPUASAN PELANGGAN PADA BENGKEL CANDERA MOTOR DI KAUR UTARA KABUPATEN KAUR
Authors: - Mitior , Susena Karona Cahya
Published: February 2020

Mitior, Karona Cahya Susena; An Analysis of the relationship between Services and the Customer Satisfaction At Motor Candera repair shop In Kaur regency. This research aimed to analyze the relationship between Services and the Customer Satisfaction At Motor Candera repair shop In Kaur regency. It used Spearman Rank and t test as the data analysis method. The result of the research showed that it has a correlation of 0,701 in spearman rank. It means that there is a high correlation between the services and the customer satisfaction in Candera Motor. The higher the service provided will increasingly the levels of satisfaction of the customer. The Hypothesis testing results showed that tcount is greater than ttable (7,482 > 1,672). Thus the hypothesis H0 is rejected and the Ha are received. It means that the services has a significant relationship with the customer satisfaction at Candera Motor repair shop in Kaur regency.
ENERAPAN ETOS KERJA PEGAWAI PADA STASIUN KIPM KELAS II BENGKULU
Authors: Puspita Sari Anggri
Published: February 2020

Anggri Puspita Sari; Sumber daya manusia sebagai salah satu faktor yang memainkan peran penting dalam keberhasilan atau kegagalan organisasi dalam mencapai tujuannya. Setiap organisasi tentu saja selalu ingin bergerak maju dengan keterlibatan anggotanya untuk meningkatkan kualitas kinerjanya, termasuk setiap organisasi harus memiliki etos kerja. Etos kerja adalah pandangan seseorang dan sikap terhadap pekerjaan dipraktekkan. Etos kerja yang dimiliki oleh seseorang atau karyawan akan menjadi sumber motivasi bagi tindakannya. Tujuan dalam penelitian ini adalah untuk menganalisis dan mendeskripsikan penerapan etos kerja karyawan di Kelas II KIPM Stasiun Bengkulu. Populasi dalam penelitian ini adalah seluruh Pegawai Negeri Sipil (PNS) di SKIPM Kelas II Bengkulu berjumlah 24 orang. Metode sensus metode sampling yang digunakan, sehingga total populasi unit analisis. Metode analisis yang digunakan adalah deskriptif kualitatif. Secara umum, hasil analisis deskriptif statistic menunjukkan bahwa faktor-faktor etos kerja rata-rata karyawan KIPM Stasiun Kelas II Bengkulu telah di kedua kategori. Hal ini menunjukkan bahwa secara umum etos kerja karyawan KIPM Stasiun Kelas II Bengkulu telah melakukan tugas dan fungsi yang memberikan layanan kepada masyarakat sesuai dengan ketentuan yang berlaku mereka. Anggri Puspita Sari; Human resources as one of the factors that play important roles input success or failure of an organization in achieving its goals. Each organization is of course always want to move forward with the involvement of its members to improve the quality of its performance, including every organization should have a work ethic. The work ethic is a person's view and attitude towards work is practiced. Work ethic is owned by a person or employee will be a source of motivation for his actions. The goal in this research is to analyze and describe the application of the work ethic of employees in Class II KIPM Station Bengkulu. The population in this study are all Civil Servants (PNS) in SKIPM Class II Bengkulu numbered 24 people. The sampling method used census methods, so that the total population of the unit of analysis. The analytical method used is descriptive qualitative. In general, the results of descriptive statistical analysis showed that the factors of employee work ethic KIPM Station Class II Bengkulu average has been in both categories. This shows that in general the work ethic of employees KIPM Station Class II Bengkulu have done their duties and functions that provide services to the public in accordance with applicable regulations.Key Word: Work Ethic, Civil Servants