bluuebunny/crossref_metadata_2025 huggingface dataset:
Perilaku Kristalisasi Polipropilena dengan Penambahan Selulosa Mikrofibril Serat Sorgum sebagai Bio-Based Nucleating Agent
Authors: Ismail Ika , Chalid Mochamad
Published: February 2020

Polypropylene with added Microfibrill Cellulosa as additive materials and filler has been investigated. Polypropylene and sorghum fibre has different interface properties, as the result that the compatibility between both are not good. Therefore, modification process for sorghum fibre is needed, the modification process for sorghum surface are alkalinization and bleaching treatment. Alkalinization process is doing with soaking the sorghum fibre in NaOH solution 2% during 2 hours. Bleaching Process used buffer and NaClO2 during 4 hours. Then, polypropylene and microfibrill cellulose mixed with hot melt mixing method. Characterization for this research is how effect from cellulose in sorghum on crystallization of PP. From DSC analysis showed PP with added microfibrill cellulose 1%wt can increase crystallization temperatures up to 126,510C and crstallization time until 8,26 minutes. And the crystallization process may be accelerated 10 seconds.
Innovative Adhesive Systems for Dental Giomer Restorations
Authors: Hodisan Ioana , Prejmerean Cristina , Buruiana Tinca , Prodan Doina , Colceriu Loredana , Petean Ioan , Furtos Gabriel , Prejmerean Vasile , Cotisel Maria Tomoaia
Published: February 2020

The aim of this work was to reduce microleakage in giomer restorations by using innovative materials in both adhesive systems and light-cured dental giomer. Two adhesive systems with different primers were investigated. The innovative compounds in the primers were acrylic acid (AA)/itaconic acid (IA) copolymer modified with methacrylic groups and AA/IA/N-acryloyl-L-leucine copolymer grafted with methacrylic groups. In addition, the investigated new giomer G contains a pre-reacted glass based on the latter copolymer. The commercial Beautifil II giomer and the FL-Bond II adhesive system were used for comparison. Microleakage was evaluated by determining the scores and percentages of dye penetration lengths after thermocycling of a series of light-cured dental giomer restorations performed on 42 premolars extracted for orthodontic reasons. A lower microleakage value was recorded for the adhesive system containing the AA/IA/N-acryloyl-L-leucine copolymer grafted with methacrylic groups than for the commercial adhesive, which was in substantial agreement with SEM and AFM investigations. In this case, remarkable dentin sealing and a strong adhesion at the giomer restoration�tooth interface was observed, and the innovative adhesive was proven to be promising for dental applications.
Influence of Fertilization Systems on Physical and Chemical Properties of the Soil
Authors: Muscalu (Plescan) Oana Maria , Nedeff Valentin , Chitimus Alexandra Dana , Sandu Ioan Gabriel , Partal Elena , Mosnegutu Emilian , Sandu Ion , Rusu Dragos Ioan
Published: February 2020

The purpose of this research have been to determine the influence of soil fertilizations systems (fertilization with: nitrogen, phosphorous, nitrogen and phosphorous, farmyard manure) on the physical properties (penetration hardness) and chemical properties (humidity, metals) of the soil. The experiments have been carried out in the experimental field of National Agricultural Research and Development Institute -Fundulea, Romania, for a wheat monoculture. The lowest values of the metal content in soil (nickel, copper, zinc, arsenic, lead) have been recorded for wheat experimental variant -fertilized with N90P75 kg/ha (a1b4), and the highest content have been recorded for manganese (766 mg/kg dry matter), and for the wheat experimental variant a1b4, respectively (wheat-fertilized with N90P75 kg/ha active matter), working depth 0-15 cm.
Relation of Polypharmacy to Systemic and Oral Health Related Factors
Authors: Bicheru Madalina , Preoteasa Cristina Teodora , Zamfirescu Andreea , Capisizu Ana , Melescanu Imre Marina , Preoteasa Elena
Published: February 2020

To assess polypharmacy (i.e., multiple medication use, as synthetic chemical products) and its relationship to general, systemic health and oral health factors in adults over 50 years old. A cross-sectional study was conducted on a convenience sample of adult patients recruited from two medical centers from Bucharest, i.e. from the Clinic of Dental Prosthetics, Carol Davila University of Medicine and Pharmacy, and from Saint Luca Hospital for Chronic Diseases. Study sample included 126 patients, that used a mean of 5.2 drugs. Almost half of patients (43.65%) used more than five prescribed medications. There was a tendency to use a greater number of medications in the case of patients that were hospitalized at Saint Luca Hospital, were less educated, had a lower income, had a greater number of comorbidities, had untreated edentulism in both jaws, were unfrequently wearing removable prosthesis and were using denture adhesives. Both positive and negative effects of polypharmacy should be considered in mutimorbidity patients when establishing prescription medications, along with general and oral factors that may influence treatment conduct and outcome.
Parallel between Offline-SPE-LC-MS and Direct Injection LC-MS Methods for Acrylamide Detection in Drinking Water at Parts Per Trillion Level
Authors: Chiriac Florentina Laura , Paun Iuliana , Pirvu Florinela , Cruceru Liliana , Pascu Luoana Florentina , Galaon Toma
Published: February 2020

The presence of acrylamide, a potential human carcinogen, in treated drinking water has been a long-time concern for public health agencies. Due to this, acrylamide is included among the substances to be monitored in drinking water with a stated maximum admissible level of 0.1 �g/L in Europe. The necessity for ultra-trace level detection of acrylamide has led to development of an Offline-SPE-LC-MS method that involves SPE extraction of acrylamide using a strong adsorbent like activated charcoal followed by concentration. Simultaneously, a simple and rapid large volume Direct Injection LC-MS method was optimized from the previous method to detect acrylamide without the resource and time-consuming SPE step. A comprehensive comparison between the efficiency and sensitivity of the two methods is made. Optimization of LC-MS parameters (column temperature, mobile phase composition and flow, collision energy, fragmentor voltage, capillary voltage or MRM transitions) allowed high detection sensitivity. Due to Acrylamide high polarity, a Synergi Fusion-RP column with amide polar embedded groups was chosen to achieve reasonable retention and peak shape for acrylamide with a short run-time of only 3 min. The two methods provided excellent sensitivity, with reasonably low LOQ values of 2 ng/L for the Offline-SPE-LC-MS method and 30 ng/L for the Direct Injection LC-MS method. Intra-day and inter-day precision (RSD%) were 7.3 and 10.3%, for the Offline-SPE-LC-MS method and 2.4% and 6.2%, respectively for the Direct Injection LC-MS method. The analysis of acrylamide was successfully performed in drinking water from different location consumers and water treatment plants in Romania. Acrylamide was found in drinking water samples with levels between 5.2 and 35.7 ng/L using the Offline-SPE-LC-MS method. The direct injection method can only be used for acrylamide levels higher than its LOQ value (30 ng/L).
Blood Loss of Pedicle Subtraction Osteotomy for Sagittal Imbalance Spinal Deformity
Authors: Ahmed Abu Awwad , Prejbeanu Radu , Vermesan Dinu , Branea Ioan , Deleanu Bogdan , Florescu Sorin , Vlad-Daliborca Cristina
Published: February 2020

Pedicle subtraction osteotomies (PSO) have been used in the treatment of multiple spinal conditions involving a fixed sagittal imbalance. It is a complex, extensive surgery most often performed in the revision settings. The aim of our study is to review the major complications of this surgical technique with a focus on blood loss. Twenty patients were included, treated using PSO for sagittal imbalance, out of 255 corrective surgeries. Of the 12 female patients included in the study, the mean age was 64.33. Of the 8 male patients included in the study, the mean age was 51.85. For female patients, the mean blood loss was 2122.5 mL in comparison with male patients, with mean blood loss 1737.5 mL. The female patients had an operating time of 357.25 minutes in comparasion with male patients with an 328.5 minute operating time. Eight (5 female and 3 male) had postoperative neurological deficits and 6 (5 female and 1 male) had pseudarthrosis of adjacent levels.
The Efficiency of Substitutive Treatment with Moroctocog Alfa in Managing Hemostasis in Patients with Hemophilia A Without Inhibitors With Total Knee Arthroplasties
Authors: Badulescu Oana Viola , Ciocoiu Manuela , Filip Nina , Vering Vlad
Published: February 2020

Hemophilia A is a hereditary coagulopathy caused by the deficiency of the coagulation factor VIII, whose main complication consists in disabling arthropathy. The most often affected joint is the one of the knee, due to which this article aims at presenting, on one hand, the role of continuous substitutive prophylactic treatment in preventing the onset of this complication and, on the other hand, the current view of orthopedic surgery in managing the above-mentioned complication. The continuous prophylactic treatment represents the best therapeutic conduct in preventing the onset of hemophilic arthropathy, yet this aspect is limited by two important factors: inappropriate medical support, dependence on the social and economic level of every country and inappropriate adherence of the patient to this thorough treatment, which represents a challenge for a life with no bleeding. Under the circumstances imposed by an insufficient substitutive treatment or by a deficient adherence of the patient to this, recurrent hemarthrosis shall lead to cartilage destruction and synovial hypertrophy (synovitis), which will impose, in time, total endoprosthesis in order to re-establish the motor function and to improve the life quality of the hemophilic patient. The surgery of the hemophilic patient is associated with an increased risk of hemorrhage and infection and it is practiced only with substitutive hematologic support. The key to the best results is the existence of a multidisciplinary experienced team, including an orthopedist, hematologist, physical therapist.
Color Changes and Stainability of Complete Dentures Manufactured Using PMMA-TiO2 Nanocomposite and 3D Printing Technology-one year evaluation
Authors: Cristache Corina Marilena , Oancea Luminita , Didilescu Andreea Cristiana , Burlibasa Mihai , Totu Eugenia Eftimie
Published: February 2020

Color stability through wear and time, one of the most important esthetic factor, influencing patient�s acceptance of an acrylic removable prosthesis, was investigated in vivo in a limited number of studies and solely on prefabricated denture teeth.The aims of the present paper were to assess the color changes occurred with the commercially available PMMA for 3D printing technique, improved by doping with titania nanoparticles, and to evaluate the color stability and stainability of the PMMA with 0.4%TiO2 denture teeth, on denture wearers, over a period of one year. Ten patients rehabilitated with removable complete dentures or implant retained overdentures manufactured using a new nanopolymer, PMMA doped with 0.4% by weight of TiO2 as denture base and artificial teeth material and Digital Light Projection (3D printing) technology, were evaluated in the present study. The color of each denture was assessed with a spectrophotometer, before and after use, in CIE L*a*b* system. The before measurement was made on the positive control - PMMA with nanoTiO2 (PC), while the after was measured the color of the tooth after one year complete denture use. Negative control - PMMA without nanoTiO2 (NC) was also compared to PC and the following parameters were registered: Value (L), Chroma (C), Hue (H), redness/greenness (a) and yellowness/blueness (b). A color difference (DE) between 1.63 and 5.24 was measured for all patients, while for the NC DE was triple (17.65). The highest DE value for all denture wearers with TiO2 nanofiler inclusions was below the maximum acceptability threshold, in accordance to the patient�s subjective evaluation, who were unable to identify the color change.
The Assessment of the Association Between Herpesviruses and Subgingival Bacterial Plaque by Real-time PCR Analysis
Authors: Solomon Sorina Mihaela , Filioreanu Ana Maria , Stelea Carmen Gabriela , Grigoras Simona Ionela , Sufaru Irina Georgeta , Maftei George Alexandru , Martu Silvia , Scutariu Mihaela Monica , Popa Cristina
Published: February 2020

This study used a real-time PCR analysis to determine possible correlations between periodontal presence of human cytomegalovirus, Epstein-Barr virus and various putative parodontopathogenic bacteria. The study included 18 patients (aged 18-38 years) with aggressive periodontitis, 12 patients (ages 37 to 62) with chronic periodontitis and 30 periodontally healthy subjects (aged 21-54 years). Clinical periodontal evaluation included plaque index, gingival index, percentage of bleeding on probing sites, and probing depth. In each patient, a subgingival bacterial plaque sample was obtained from the deepest periodontal pocket. The real-time fluorogenic PCR detection system was used to determine the number of infectious agents. Human cytomegalovirus was detected in 17 sites with periodontal lesions and in two healthy periodontal sites, and the Epstein-Barr virus was detected in 19 sites with periodontal lesions and in 3 normal periodontal sites. Positive correlations were found between human cytomegalovirus and P. gingivalis, T. forsythia and C. rectus. The Epstein-Barr virus positively correlated with P. gingivalis and T. forsythia. Unfavorable changes in environmental exposure or alteration of the immune system genes can periodically suppress the host�s defence against periodontal aggression, which can then result in reactivation of resident herpesviruses and increased pro-inflammatory mediators followed by an increase in pathogenic bacteria.
Stability of Ceramic Glazes Obtained by Valorification of Anorganic Pigments Extracted from Electroplating Sludge
Authors: Mitiu Mihaela Andreea , Marcus Maria Iuliana , Vlad Maria , Balaceanu Cristina Mihaela
Published: February 2020

This paper presents the results of the research activity in order to etablish the stability and leaching potential of ceramic tiles which have been developed using glazes colored with pigments obtained by the extraction of chromium and iron metals from electroplating sludge. All these ceramic tiles contain various amounts of heavy metals in their glazes due to the pigments composition. The ceramic samples have been subjected to leaching tests in order to detect if various elements of relevance such as chromium, lead, cadmium, zinc or iron migrated to any great extent into test solutions. Leaching tests have been performed following the international standard SR ISO 10545-15 method for specific metals leaching into 4% acetic acid solutions at 220C after a 24h period and the international standard SR EN 12457/1-4 method with distilled water as leaching agent at LSR of 10 l/kg, for 24h period. Amounts of heavy metals have been negligible or non-detectable (iron) in the leaching solutions, being well below the limit values established by the legislation in force.
The Role of Chromogranin A in Adrenal Tumors
Authors: Mirica Alexandra , Badarau Ioana Anca , Stefanescu Ana Maria , Mirica Radu , Paun Sorin , Stefan Daciana Andrada Costina , Paun Diana Loreta
Published: February 2020

Chromogranin A (CgA) is part of the family of granins, which are acidic glycoproteins that represent an important part of secretory dense core granules. They are specific to various neuroendocrine and endocrine tissues, as components of diffuse neuroendocrine system and endocrine glands. CgA is co-secreted and co-released in the circulation along with hormones, bioamines and peptides secreted from the neuroendocrine cells . In the last decade, studies have emphasized the major importance of serum CgA in the diagnosis and follow-up of neuroendocrine tumors such as gastroenteropancreatic tumors, pheochromocytoma, medullary thyroid carcinoma. But its diagnostic value for adrenocortical adenomas or for adrenal malignancy, is still controversial. The current study aims to provide a comprehensive review , for synthesizing current knowledge regarding corelations between plasma CgA concentration and various adrenal tumors. Furthermore, there will be also analyzed and synthesized the clinical applicability and the diagnostic usefulness of dosing CgA in adrenal pathology, both medullary and cortical benign and malignant lesions.
Sensitive Electrochemical Detection Method of Melatonin in Food Supplements
Authors: Miccoli Angela , Restani Patrizia , Floroian Laura , Taus Nicoleta , Badea Mihaela , Cioca Gabriela , Bungau Simona
Published: February 2020

Melatonin (N-acetyl-5-methoxytryptamin) is a ubiquitous molecule widely distributed in nature. It is a hormone produced by the pineal gland, which plays a role in the body�s sleep cycles and it is a powerful antioxidant. It is possible to find it in several foods (fruit, rice, corn) and as food supplement. Screen-printed carbon electrode (DRP-150) and graphene modified screen-printed electrode (DRP-110GPH) were tested as sensors for the detection of melatonin using electrochemical detection (differential pulse voltammetry), at different pH values (7.4, 7.0, and 6.4). Quantitative detection of melatonin was possible, with better results when graphene modified screen-printed electrodes were used. The pH influenced the position of the peak as well, with lowering the pH moves more in the right. Both electrodes have been tested on samples of food supplements containing melatonin, with good recovery degrees.
Study on Metabolic Parameters in Obese Patients Compared to Normal Weight Subjects Before and After Joint Replacement Surgery
Authors: Tilinca Mariana Cornelia , Voidazan Septimiu , Nyulas Kinga , Tilinca Raluca Maria , Nemes Nagy Eniko
Published: February 2020

Surgical interventions represent an important stress for the organism. Metabolic parameters can exhibit important changes in a short period of time related to surgery. Differences might occur between normal weight and obese patients. Weight excess represents a risk factor for osteoarthritis.The aim of the study was to assess metabolic parameters before and after total hip and knee replacement in patients with osteoarthritis. The study was performed during 2016-2017 at the Clinic of Orthopedics and Traumatology of the Emergency County Hospital in Tirgu Mures. The study group was divided, based on body mass index values, in normal weight (43 patients) and obese individuals (52 patients). Plasma uric acid level, glycemia and lipid profile (triglycerides, total cholesterol) were determined for each patient before surgery and one day after the intervention, the values being compared. Differences between the metabolic parameters of the two subgroups were also determined. In case of obese individuals, all followed metabolic parameters were significantly different one day after the intervention compared to the values obtained before the surgery: plasma uric acid, cholesterol and triglyceride values decreased, glycemia increased. In the group of normal weight subjects the level of plasma lipids and uric acid differed significantly between the first and second sample, mean values being decreased in the second one. Comparing the two subgroups, significant difference occured regarding plasma glucose levels one day after the intervention, the mean value being higher in case of obese patients, also a higher percentage of hyperuricemia has been found in the group of obese patients. Dynamics of the followed metabolic parameters shows important changes on short term following surgical intervention. Hyperglycemia and hyperuricemia was most common in obese patients, plasma glucose showing increasing tendency after surgery.
Heat Treatment Influence on the Corrosion Resistance of a Cu-Al-Fe-Mn Bronze
Authors: Ciurdas Mariana , Gherghescu Ioana Arina , Ciuca Sorin , Necsulescu Alina Daniela , Cotrut Cosmin , Dumitrescu Ruxandra Elena
Published: February 2020

Aluminium bronzes are exhibiting good corrosion resistance in saline environments combined with high mechanical properties. Their corrosion resistance is obviously confered by the alloy chemical composition, but it can also be improved by heat treatment structural changes. In the present paper, five Cu-Al-Fe-Mn bronze samples were subjected to annealing heat treatments with furnace cooling, water quenching and water quenching followed by tempering at three different temperatures: 200, 400 and 550�C. The heating temperature on annealing and quenching was 900�C. The structure of the heat treated samples was studied by optical and scanning electron microscopy. Subsequently, the five samples were submitted to corrosion tests. The best resistance to galvanic corrosion was showed by the quenched sample, but it can be said that all samples are characterized by close values of open-circuit potentials and corrosion potentials. Concerning the susceptibility to other types of corrosion (selective leaching, pitting, crevice corrosion), the best corrosion resistant structure consists of a solid solution, g2 and k compounds, corresponding to the quenched and 550�C tempered sample.
Quality by Design for Ciprofloxacin Encapsulation in PLGA Factors assessment followed by screening and optimization
Authors: Mocanu Andreea Gabriela , Stiolica Adina Turcu , Belu Ionela , Ciocilteu Maria Viorica , Manda Valentin Costel , Nicolicescu Claudiu , Neamtu Johny
Published: February 2020

The objective of this study is to formulate and characterize ciprofloxacin-PLGA nanoparticles in laboratory. Ciprofloxacin-PLGA nanoparticles were obtained with Ciprofloxacin and PLGA as raw materials at the room temperature. The optimum set of process parameters were determined using Design of Experiments (DoE) with the factors: PLGA concentration, Ciprofloxacin concentration, Agitation Rate and the responses: Particles Size, Ciprofloxacin Encapsulation. The optimized formulation had 36.83% Ciprofloxacin Encapsulation and 87.58nm Particles Size in the conditions of 10% PLGA Concentration, 24.8 mg Ciprofloxacin Concentration and 1500 Rpm.
Renewable Energy from Agricultural Waste
Authors: Bran Stefania Daniela , Chipurici Petre , Bran Mariana , Vlaicu Alexandru
Published: February 2020

This paper has aimed at evaluating the concentration of bioethanol obtained using sunflower stem as natural support, molasses as carbon source and Saccharomyces cerevisiae yeast in a continuous flow reactor. The natural support was tested to investigate the immobilization/growth of S. cerevisiae yeast. The concentration of bioethanol produced by fermentation was analyzed by gas chromatography using two methods: aqueous solutions and extraction in organic phase. The CO2 flow obtained during the fermentation process was considered to estimate when the yeast was deactivated. The laboratory experiments have highlighted that the use of plant-based wastes to bioconversion in ethanol could be a non-pollutant and sustainable alternative.
The Role of Several Angiogenesis Peptides Markers in the Management of Hypertensive Pregnant Women
Authors: Mihalceanu Elena , Dimitriu Daniela Cristina , Lazar Ioan Tudor , Petre Brindusa Alina , Constantinescu Gabriel , Nemescu Dragos , Scripcariu Ioana
Published: February 2020

The objectives of the research herein are to detect if the modifications of sFlt-1 and PlGF can be correlated with the clinical and biochemical status of the hypertensive pregnant woman and if the sFlt-1/PlGF ratio is a good predictor for preeclampsia in case of the investigated patients. In the study herein, 100 pregnant women were evaluated; they were distributed in the following groups: The group of pregnant women diagnosed with HTN at the time of hospital admission � including 50 pregnant women, of which 16 pregnant women presented medium and severe forms of preeclampsia and 34 pregnant women with pregnancy-induced hypertension and 50 pregnant women with normal pregnancy evolution as control group. We have performed hematological and biochemical tests, using serum samples from all analyzed patients and measured the serum concentrations of sFlt-1 and PlGF angiogenic factors. We found a significant correlation between the value of the arterial blood pressure, the proteinuria, the serum creatinine and the AST, on one hand, and the sFlt-1/PlGF ratio, on the other hand. The ROC curve has emphasized the fact that the proteinuria (AUC = 0.849), the AST (AUC = 0.664), the value of the arterial blood pressure SBP/DBP (AUC = 0.683/0.631), the serum creatinine (AUC = 0.674) and the sFlt-1/PlGF ratio, at a cut off value = 200, are effective preeclampsia predictors. Similarly, statistically significant increase (p = 0.001) of the sFlt-1 serum concentration in case of the pregnant women from the PE group (14365�6464 pg/mL) and from the PIH group (9892�8443 pg/mL), compared to the control group (3278�1444 pg/mL) and, respectively, a significant decrease (p = 0.003) of the PlGF pro-angiogenic marker for the group of pregnant women suffering from preeclampsia (119.30�56.63 pg/mL) and from PIH (129.12�21.41 pg/mL), compared to the control group (327.57�59.62 pg/mL). The results obtained within this research show that sFlt-1/PlGF ratio represents an effective preeclampsia predictor, confirming the fact that the study of the angiogenic factors may help to analyze the stratification of the risk degree in HTN pregnant women.
ELISA Evaluation of RANKL Levels in Gingival Fluid in Patients with Periodontitis and Occlusal Trauma
Authors: Popa Cosmin Gabriel , Luchian Ionut , Ioanid Nicoleta , Goriuc Ancuta , Martu Ioana , Bosinceanu Dana , Martu Maria Alexandra , Tirca Tiberiu , Martu Silvia
Published: February 2020

The aim of this study was to evaluate the differences in RANKL levels in crevicular fluid (GCF) in patients with chronic periodontitis, with or without chronic occlusal trauma. The study group consisted of 40 patients from whom 72 samples of crevicular fluid were collected. RANKL levels were analyzed by ELISA. We noticed significantly higher differences in RANKL levels for the study group (occlusive trauma patients) than for systemic healthy patients (p = 8.008). Research has shown that secondary occlusal trauma associated with periodontal disease is characterized by significantly higher RANKL levels in patients with chronic occlusal trauma. This partially clarifies the molecular mechanisms that underlie more severe tissue destruction in patients with occlusal trauma.
Antimicrobial Effect of 940 nm Diode Laser based on Photolysis of Hydrogen Peroxide in the Treatment of Periodontal Disease
Authors: Odor Alin Alexandru , Bechir Edwin Sever , Violant Deborah , Badea Victoria
Published: February 2020

Moderate and severe periodontitis represents a challenge in the non-surgical periodontal therapy. Due to the lack of evidence regarding the antimicrobial effectiveness of 940 nm diode laser in periodontal treatment, this study aimed to evaluate the antimicrobial effect of hydrogen peroxide (H2O2) photolysis performed with 940 nm diode laser in the treatment of moderate and severe periodontitis. Twenty-five patients with 100 teeth were selected for this pilot study. The test teeth were randomly assigned to one of the four treatment groups: Group 1: scaling and root planning (SRP) (control group); and the following experimental groups: Group 2: H2O2; Group 3: 940 nm diode laser therapy; Group 4: 940 nm diode laser therapy and H2O2. Clinical examinations, like probing depth (PD), clinical attachment level (CAL) and bleeding on probing (BOP) were performed before and after the treatment. The microbiological evaluation, effectuated before and after the treatment, included nine periodontal bacteria species and investigated by means of real-time PCR assay. The clinical and bacterial differences in the tested groups, was assessed between control group and the other three experimental groups, as well as between the experimental groups. The total bacteria load was reduced for all four studied groups. Group 4 (diode laser + H2O2) showed significant bacterial reduction of the major periodontal bacteria like Pg., Tf., Td., Pi., Pm., Fn (p[0.001) than the other 3 groups (p]0.001). Also the periodontal clinical parameters, like PD, CAL and BOP showed a significant reduction after the photolysis of H2O2 with the 940 nm diode laser (p[0.001). Differences between tested groups showed a significant beneficial results in regard to Group 4.It is suggested that the photoactivation of H2O2 with the 940 nm diode laser can be used successfully in adjunctive to the non-surgical periodontal treatment as a bactericidal tool.
Comparative Study of Lavandula angustifolia Essential Oils Obtained by Microwave and Classical Hydrodistillation
Authors: Danila Elena , Kaya Durmus Alpaslan , Patrascu Mariana , Kaya Madalina Albu
Published: February 2020

Lavandula angustifolia which belong to Lamiaceae family with origins in the Mediterranean regionis one of the most important species of Lavandula. The most common method for obtaining the essential oil of lavender is described in the literature is steam hydrodistillation using a Neo-Clevenger, official method described in the European Pharmacopoeia. Another method described in the literature for obtaining oil of lavender is the extraction using microwave. The aim of this study was to obtain lavender essential oils bythese two different methods: classical hydrodistillation using Neo-Clevenger apparatus and microwave�assisted extraction. The yield of extraction was different for the two of methods 0.124 % for classical hydrodistillation and 0.6 % for microwave � assisted extraction. In order to establish and compare the chemical composition of lavender essential oils we used a gas chromatography coupled with mass spectrometry (GC-MS). In the classical hydrodistillation method 44 components with 99.20% yield and in microwave extraction, 46 components with 99.33% yields have been identified. The main compound of essential oil obtained was Linalool. But the other secondary main components are totally different. Even if the obtainedyield for lavender essential oil was bigger in the case of classical hydrodistillation, taking into account the time of extraction was lower for the oil obtained by microwave, it is recommended to continue with this modern method.
Synthesis and Structural Characterization of Some Potential Anti-Virulence 1,2,4-Triazoles and 1,3,4-Thiadiazoles
Authors: Barbuceanu Stefania Felicia , Olaru Octavian Tudorel , Nitulescu George Mihai , Draghici Constantin , Socea Laura Ileana , Barbuceanu Florica , Enache Cristian , Saramet Gabriel
Published: February 2020

This paper presents a continuation of our studies in the synthesis of some 1,2,4-triazole-3-thiones and 1,3,4-thiadiazol-2-amines containing in their molecules the fluorine atom. For the synthesis of these heterocycles, the hydrazinecarbothioamides, 2-(4-(4-X-phenylsulfonyl)benzoyl)-N-(3-fluorophenyl) hydrazinecarbo-thioamides 2a-c, were obtained by treatment of some 4-(4-X-phenylsulfonyl)-benzoic acid hydrazides 1a-c with 3-fluorophenyl isothiocyanate. The new 5-(4-(4-X-phenylsulfonyl)phenyl)-4-(3-fluorophenyl)-2H-1,2,4-triazole-3(4H)-thiones 3a-c were obtained by refluxing of hydrazinecarbothioamide 2a-c with a solution natrium hidroxide and the 5-(4-(4-X-phenylsulfonyl)phenyl)-N-(3-fluorophenyl)-1,3,4-thiadiazol-2-amines 4a-c were synthesized by refluxing of hydrazinecarbothioamides 2a-c with phosphorus oxychloride. The newly synthesized compounds were characterized by IR, 1H-NMR, 13C-NMR, mass spectral data and by elemental analysis. The compounds have been tested on Daphnia magna for their toxicity assessment.
New approaches in health communication: a research exposure
Authors: de-Aguilera-Moyano Miguel , Pindado-Pindado Julián
Published: February 2020

This paper examines the most significant contributions in health communication on adolescents and young people developed inside the positivist and interpretativist com-municative currents. Analyzing the results obtained by both models, a new investigati-ve approach is required, which would focus on the risk understood as a symptom of uncertain times dominated by a multitude of symbolic mediated resources and as an essential ingredient to youth culture and their lifestyle.

En este trabajo se examinan algunas de las aportaciones más significativas en relación con la comunicación y la salud en el ámbito juvenil desarrolladas al amparo de las gran¬des corrientes comunicativas, la positivista y la interpretativa. A partir de los logros obte¬nidos por ambos modelos se plantea la necesidad de un nuevo enfoque investigador que reflexione sobre el riesgo, entendido éste como síntoma de un tiempo de incerti-dumbre dominado por un sinfín de recursos simbólicos mediados y como un ingrediente esencial a la cultura juvenil y los estilos de vida que lleva aparejados.
Communication, health and adolescents
Authors: Muriel-Fernández Rafael , Blanco-Aguilar Javier
Published: February 2020

This paper deals with the use of communication as a strategy in public health programmes aimed at adolescents. It is based on widely developed programmes in Andalucia, which allows a reflection on the power communication has, either in terms of information or formation, to reinforce the healthy coexistence of a diversity of young people in a society of adult power.

Este texto, sobre el sentido de la comunicación como estrategia en los programas de salud pública, orientada hacia la convivencia con y entre los jóvenes, surge del desarrollo de programas ya consolidados en la realidad de Andalucía, con una trayectoria suficiente para sustentar una reflexión sobre la dimensión que tiene la comunicación, en términos unas veces de información y otras de formación, para potenciar la convivencia saludable de los jóvenes en una sociedad de poder adulto.
Communication and public health from adolescents’ point of view
Authors: Coronado-Morón José-María , López-García José-María
Published: February 2020

This paper presents a study about the young, the use they do of mass media and the relationship they keep with health. Among other contributions, it is to be highlighted that the voice of young people can be heard in this article which, with the use of methodological triangulation, offers a rich information about how adolescents contact the media and interpret its messages.

Este artículo presenta un estudio sobre los jóvenes, su uso de los medios de comunicación y la relación que jóvenes y medios guardan con la salud. Entre otras aportaciones destacamos, en especial, el que aquí pueda oírse la voz de los jóvenes que, mediante el empleo de la triangulación metodológica, ofrecen una rica información sobre cómo se relacionan con los medios e interpretan sus mensajes.
Media, identities and communication. A community radio experience with native wichí people
Authors: Huergo Jorge-A. , Morawicki Kevin , Ferreyra Lourdes
Published: February 2020

This paper shows the impact experienced by the creation of a community radio station. We reduce some aspects related to the production of bilingual programmes. The major part of this production was under-taken by young people of the wichi community. This article synthesises the most important aspects related to the production of the bilingual programmes. By means of this participative process, we facilitate the ability of the aborigenes to develop their identity and the intercultural dialogue of great importance in the context of globalisation.

El artículo presenta algunos de los impactos producidos por la experiencia de creación de una radio comunitaria wichí, en Formosa (Argentina). Se sintetizan aspectos relacionados con la producción radiofónica bilingüe protagonizada por los jóvenes wichí. Se abordan los modos en que un medio comunitario, como espacio de comunicación, provoca procesos relacionados con las identidades aborígenes y con el diálogo intercultural, de singular significación en tiempos de globalización.
Telepsychodrama and school education: a teachers´talk
Authors: Dupas-Penteado Heloísa
Published: February 2020

The telepsychodrama is a new cultural product. It comes from research that links Moreno´s ideas to the current TV and VCR technological resources. The paper results from this research. It investigates pedagogic properties of telepsychodrama in school teaching situations. This teaching resource presents, in the collective life of spontaneous preocesses, possibilities of overcoming difficulties experimented and outlined by the youth.

El telepsicodrama es un producto cultural nuevo, basado em las investigaciones que surgen de las ideas de Moreno, aplicadas a los actuales recursos de las tecnologías audiovisuales del vídeo y la televisión. El presente artículo se centra en investigar las principales propiedades pedagógicas del telepsicodrama en situaciones escolares cotidianas de enseñanza. En este contexto didáctico, este recurso se nos presenta en la vivencia colectiva de los procesos de espontaneidad, las posibilidades de superación de las dificuldades experimentadas y apuntadas por los jóvenes, etc.
A simple and rapid protocol for measuring the chitin content ofHermetia illucens (L.) (Diptera: Stratiomyidae) larvae
Authors: Woods M.J. , Goosen N.J. , Hoffman L.C. , Pieterse E.
Published: February 2020

The study reports on a simple gravimetrical analysis to determine the chitin content of insect larvae.Hermetia illucenslarvae, 16 days of age, was used as sample material. The method of analysis comprised of a defatting treatment by means of rapid solvent extraction (2:1 chloroform : methanol), followed by a treatment with 1 M HCL (demineralisation) and 1 M NaOH (deproteinisation). The nitrogen content of the obtained chitin was determined and compared to that of the nitrogen content of pure chitin (6.89). The chitin content ofH. illucenslarvae was determined to be 5.68±0.15% with a nitrogen content of 6.43±0.038 (mean ± standard error). The average nitrogen content of the isolated chitin was lower than the theoretical value calculated for pure chitin. This indicated that there was still a small amount of inorganic compounds present in the chitin of the insect larvae after applying the developed analytical procedures. This was confirmed by the ash value of the isolated chitin (1.50±0.06%) (mean ± standard error). The analysis is simple and accurate, which gives repeatable results, for the determination of the chitin content ofH. illucenslarvae. Further studies regarding the demineralisation treatment could improve the accuracy of the method due to the removal of all inorganic components. Future studies could also investigate the accuracy of the protocol on other insect species.
A strategic approach for bottleneck identification in make-to-order environments: A drum-buffer-rope action research based case study
Authors: Lizarralde Aiastui Aitor , Apaolaza Perez de Eulate Unai , Mediavilla Guisasola Miguel
Published: February 2020

Purpose: This study is focused on integrating a strategic perspective for bottleneck selection and exploitation according to the DBR methodology. The researchers developed a systematic process of four steps for the implementation of the first two steps of TOC-DBR in Make-to-Order production systems. This process was derived from the seminal work from Goldratt, introduced key insights from Resource Based View (RBV) and Practice Based View (PBV) strategic perspectives and included original contributions from the authors in understanding what purpose should be fulfilled, what decisions should be made and how the four steps should be applied.Design/methodology/approach: Given the practical nature of the research project, action research (AR) is an appropriate methodological approach, since AR aims to contribute to academic research while helping solve real-world problems.Findings: The proposed systematic process has been successfully tested in the field on a Make To Order case company. Thus, it has been answered the research question regarding systematically selecting a bottleneck and exploiting it to enhance the competitive advantage/firm performance. In fact, the new way of selecting and exploiting its bottleneck improved the results of the company, in particular business turnover and profitability. Additionally, the research process complied with the necessary criteria to assure the research quality required for AR.Originality/value: The key contributions within the systematic process (on Make-to-Order companies) are two: (1) the criteria to select the bottleneck, far beyond a load versus capacity perspective (i.e., providing a strategic perspective that was inspired by the main concepts from the Resource Based View regarding the contribution of strategic resources to sustain competitive position) and  (2) the detailed discussion on how to exploit the bottleneck, which was aligned with the Practice Based View and recognised that practices could also provide superior performance to organisations.
Analytical review on competitive priorities for operations under manufacturing firms
Authors: M Prabhu , T Nambirajan , Abdullah Nabaz Nawzad
Published: February 2020

Purpose: To developed and introduced a measurement scale that may be useful to assess the competitive priorities practices in the manufacturing industries. The objective is to investigate the competitive priorities domains’ implementation and its defining measurement items emphasizing manufacturing industries in the Union Territory of Puducherry.Design/methodology/approach: The essential information has been gathered from 350 manufacturing firms by utilizing very much stretchered polls; most part of the data was gathered from best dimension working people like Operations Managers, General Managers and Directors. For analyzing the data the researchers used SPSS and LISREL 8.72 software packages. To find out the result the researchers applied Confirmatory Factor Analysis in this research work.Findings: From the six domains analyzed the result shows that Delivery plays an important role as it occupies the first rank among the domains in competitive priority. Next to Delivery, the majority of the firms fasten more importance to Quality as it ranks second. Cost is ranked as third, while Know-how is ranked as fourth, Flexibility is ranked as fifth and Customer Focus is ranked as sixth.Practical implications: Based on the existing recommendations on scale development literature, authors developed the measurement scale. This measurement scale is helpful for both academicians and practitioners. In this research work authors used the measurement scale to measure the competitive priorities domains.Originality/value: The research paper explains about the manufacturing industries situated in Union Territory of Puducherry.  The researchers developed the measurement instrument of competitive priorities practices based on six domains namely quality, cost, delivery, flexibility, customer focus, and know-how. This research work gives innovative literature by recommendations and validating a measurement scale for the competitive priorities. The result reveals that the manufacturing enterprises in the Union Territory of Puducherry.
The Spy Who Never Has to Go Out Into the Cold
Authors: Hansen Laura Pinto
Published: February 2020

At the height of the Cold War, spies were more likely to be required to live secret lives in deep undercover. The same held true for corporate and industry spies. Even though government and industry spies may still be required to go out in the field, the digital and big data ages have offered the relative comfort of executing spy operations within one's home or office, offering challenges to detecting, investigating, and controlling espionage. Due to various network means, spies never have to “go out into the cold” – code for going deep undercover. Some of the network conduits discussed are the dark web and deep web and their roles in making covert operations even more secretive than when spies were required to go in the field. Methods of obtaining sensitive information and disabling computer systems are explored as well, including phishing and various means to deliver malware, presented in layman's terms. Once the stuff of science fiction and Hollywood movies, life is very much imitating art, with examples given from famous cyber espionage cases.
Game Console Protection and Breaking It
Authors: Zaidenberg Nezer Jacob
Published: February 2020

This article surveys protection and attacks on various game consoles. Game consoles are a special kind of embedded system that are used primarily for entertainment. Virtually all game consoles include means for digital rights management (DRM) and virtually all have been attacked. The chapter describes the various motivations behind these attacks, the way the console manufacturer acted, and the way the hacking community reacted. This article is designed based on lectures published by the actual hackers of the machine describing their efforts. The article summarizes the hackers' activities on multiple consoles over the last 20 years and does not focus on specific bug or exploit.
Intimate Partner Cyber Abuse Viewed Through the Lens of Criminology
Authors: Todd Curtis L. , Byrd Joshua E. , Baldwin Leroy
Published: February 2020

Intimate partner cyber abuse is characterized by online behaviors that threaten, intimidate, harass, humiliate, or harm a person involved in a close personal relationship with another person in which they are described as being a couple due to their relationship meeting certain conditions such as emotional connection, regular contact, and ongoing physical contact that need not be sexual. This type of abuse provides criminal justice systems with numerous opportunities and challenges due to its implications for policing, prosecution, and the overall provisions of remedies accorded by judicial systems. This article contextualizes key concepts, examines gateways and protective strategies associated with cyber abuse, and argues that the issues related to intimate partner cyber abuse should be refocused through a criminological lens. Recommendations and future research considerations are also explored.
Cybercrime in Online Gaming
Authors: DaCosta Boaventura , Seok Soonhwa
Published: February 2020

Video games offer rich interactive experiences. Increasingly, however, their popularity coupled with their global connectivity has raised concerns about safety. Although it can be argued that video game developers and publishers have been plagued by cybercrime since the beginning of the industry, video game companies are not the only targets. Cybercriminals also have their sights on gamers. This article examines cybercrime affecting the video game industry and its players. Focused on some of the most deliberate forms of cybercrime found in the literature within the past few years, the article explores data breaches, compromised accounts and stolen data, the theft and sale of in-game items, and money laundering. While the information is anticipated to be of value to educators, practitioners, researchers, game developers, and publishers, it should by no means be considered an all-inclusive reference, but rather a catalyst for discussion, debate, and future research.