bluuebunny/crossref_metadata_2025 huggingface dataset:
Cost Analysis of Innovative Biomass Harvesting Systems for Young Dense Thinnings
Authors: Bergström Dan
Published: July 2019

The objective was to analyze three innovative harvesting systems for early
thinnings and compare forest-to-industry supply costs. FlowConv consists of a
harvester equipped with an innovative continuously cutting, accumulating and
bunching head (the FlowCut head), a forwarder and a truck to transport loose
tree-parts. FlowFix consists of a harvester equipped with the same cutting head
but also a bundling unit (the Fixteri system), plus a forwarder and roundwood
truck for biomass transport. FlowCin consists of a new conceptual biomass
harvester (the Cintoc system) equipped with the same cutting head and a second
crane to pass the cut trees from the front of the machine to a bundling unit at
the back, plus the same forwarding and trucking units as in the FlowFix system.
Empirical data were used to assess the FlowConv system’s performance, while the
FlowFix and FlowCin systems’ performance was simulated. Results indicate that supply costs of the FlowCin system would be 6–10% and 24–29% lower than those of the FlowFix and FlowConv systems, respectively. Thus, it would be more suitable to be equipped with an innovative cutting head, which is up to 100% more efficient than the current commercially available options. Key features of the Cintoc-based system (which minimize possible waiting times during operation) include its buffering cradle and delivery of biomass acquired in two cutting crane cycles to the intermediate delivering crane. The apparent superiority of the FlowCin system is consistent with previous conclusions regarding developments needed to maximize the cost-effectiveness of harvesting young dense stands.
Biomass Yield and Fuel Properties of Different Poplar SRC Clones
Authors: Vusić Dinko , Kajba Davorin , Andrić Ivan , Gavran Ivan , Tomić Tin , Plišo Vusić Ivana , Zečić Željko
Published: July 2019

The goal of the research was to determine the biomass yield and fuel properties of ten
different poplar clones. The research was conducted in an experimental plot
established in Forest Administration Osijek, Forest Office Darda, in the spring
of 2014. The layout of the plot consisted of three repetitions per clone with
40 plants per repetition in spacing 3x1 m. Based on the DBH distribution, in the early spring of 2018, one sample tree of an average DBH per repetition was selected, thus forming a sample of 30 trees. Average survival rate of the investigated trees after four vegetation periods was 74.54 ±13.85% ranging from 52.08% (Koreana) to 91.67% (SV885 and SV490). Average DBH of the sample trees was 8.2 ±1.9 cm, height 9.3 ±1.8 m and root collar diameter 10.7 ±1.9 cm. Moisture content in fresh state (just after the felling) ranged from 51.6% (Hybride 275) to 55.9% (SV885). Bark content averaged 18.4%, from 15.4% (Baldo) to 21.1% (V 609). Average nominal density of the sampled trees amounted to 383.5 ±35.9 kg/m3. Bark ash content was on average ten times higher (6.44 ±0.65%) than wood ash content (0.64 ±0.07%) resulting in average ash content of 1.7 ±0.1% (taking the bark content into account). The clone SV490 showed the highest biomass yield with 15.8 t/ha/year, while the lowest biomass yield was recorded for the clone Hybride 275 with 2.8 t/ha/year. High inter-clonal productivity variation stresses the importance of selection work to find the most appropriate clones with the highest productivity potential for the given area where the poplar SRC plantations are to be established. Due to high initial moisture content, if direct chipping harvesting systems are preferred, wood chips could be efficiently used in CHP (Combined Heat and Power) plants that operate on the principle of biomass gasification (where a gasifier is coupled to a gas engine to produce electric power and heat). In several CHP gasification plants operating in Croatia, wood chips with high initial moisture content (from traditional poplar plantations) are used as a feedstock that has to be pre-dried using the surplus heat. In this respect SRC poplar wood chips could make an ideal feedstock supplement.
Surgical treatment of a nasal dermoid cyst: open rhinoplasty
Authors: Yurochko Fedir , Olashyn Vasyl , Kopanska Dzvenyslava
Published: July 2019

Midline nasal congenital masses are a rare congenital anomaly. Most often such defects include: vascular tumors, benign and malignant tumors and inflammatory lesions, however the most common are: gliomas, dermoid cysts and hemangiomas. Dermoid cysts (or dermoids) are a benign tumor belongs to choristom group (teratoma). Nasal dermoid cysts (NDCs) are the most common congenital defect of the nasal midline. The diagnosis is usually established at an early age - mainly by the age of 3. Due to late diagnosis and/or delay surgical treatment, facial deformities, recurrent infections (festering of cysts or subcutaneous infections), nasal blockage or intracranial complications may occur. This paper presents a clinical case of a 7-year old boy with a nasal dermoid cyst, successfully treated surgically with open rhinoplasty and follow-up period of 2 year.
Nasal glial heterotopia – Clinical manifestation in 2.5 month-old boy
Authors: Kałużna-Młynarczyk Agata , Pucher Beata , Sroczyński Jakub , Kotowski Michał , Adamczyk Paulina , Szydłowski Jarosław
Published: July 2019

Nasal glial heterotopia is a rare congenital defect that is formed during embryological
development. This lesion is part of a larger group of diseases, congenital midline nasal
tumors, that occur with a frequency of once per 20,000-40,000 live births. Histologically,
nasal glial heterotopia is a concentration of glial tissue which exhibits no malignant potential.
We can differentiate three basic types of the disease based on the location of the lesion: 60%
of nasal gliomas are extranasal, 30% are intranasal and only 10% combine extra- and
intranasal components. Because of the rare occurrence correct diagnosis is quite difficult.
We present a case of 2.5-month male who was admitted to the Department of Pediatric
Otolaryngology for the diagnosis and treatment of a tumor deforming the bridge of his nose.
Initial differential diagnosis included encephalocele, glial heterotopia (nasal glioma),
angioma, nasal dorsal cyst, rhabdomyosarcoma, lacrimal duct cysts. We performed
endoscopic examination, radiological imaging (CT, MRI) and histological assessment of
lesion. The patient was diagnosed with nasal glial heterotopia (extra-and intranasal) based on
diagnostic studies and clinical manifestation. The resection of the lesion was performed by
means of dual access, external and endoscopic. The results of surgical treatment are
satisfactory, control endoscopy showed no residual tumor presence.
Giant cell tumor of the frontal bone – case report
Authors: Zagacki Dawid , Braun Marcin , Zbróg Zbigniew , Kaczmarczyk Dariusz
Published: July 2019

Immunosuppression is a characteristic feature of chronic kidney disease. It may lead to the increased risk of infections and neoplastic diseases occurrence. We present an unusual case of 57-years-old women with uncommon neoplasm of the head and neck region – osteoclastoma.
Achievements of Jan Szeparowicz (1843–1882), Head of the Surgical Department of the National General Hospital in Lvov, in the treatment of larynx and trachea contractions
Authors: Kierzek Andrzej
Published: July 2019

The causes of strictures of the larynx and trachea, both acute and chronic, are related at the beginning. Jan Szeparowicz’s
(1843–1882), a famous Lvov surgeon, the head of the surgical ward at the National General Hospital ways of life and profession
are presented in brief. The treatment of laryngeal and trachea strictures with tin dilators and hard rubber tubes by Leopold
Schroetter von Kristelli (1837–1908), a pioneer of the world ENT surgery, was thoroughly analyzed. Szeparowicz presented the
general principles of such proceedings, as well as the negative effects of this therapy. Cooperation of Jan Szeparowicz in this
field with Teodor Heryng (1847–1925), pioneer of Polish rhinolaryngology is introduced finally.
Effectiveness of Traction in Young Patients Representing Different Stages of Degenerative Disc Disease
Authors: Kuligowski Tomasz , Dębiec-Bąk Agnieszka , Skrzek Anna
Published: July 2019

Background. Low back pain (LBP) currently ranks among the most frequent musculoskeletal pathologies, and the average age of those affected is constantly decreasing. One of the causes of LBP is lumbar disc herniation (LDH). If untreated, it causes disability and leads to socio-economic problems. Traction techniques are a popular method of treating this condition. The stage of LDH (protrusion, extrusion) in young people appears to determine patients’ clinical status, necessitating diversification of treatment methods with regard to the type of damage.
Material and methods. The study enrolled 37 people aged 22-35. The subjects underwent radiological evalu­ation (MRI), which constituted the basis for assigning them to one of two groups: a protrusion group (PRO) or an extrusion group (EXT). During the experiment, the patient was in the supine position while the therapist administered three-dimensional traction using a manual therapy belt. The Oswestry questionnaire, MRC scale, NRS, SLR test, PLE test and measurements of lumbar segment mobility were used for clinical evaluation. Statistica 12.5 was used to perform statistical calculations.
Results. An analgesic effect was noted with regard to the following two parameters in both groups: ODI (PRO 28 → 14 and EXT 30 → 28, p <0.01) and NRS (PRO 6 → 2 and EXT 6 → 3, p <0.01). The subjects improved clinically, with regard to PLE (EXT 22% → 0%, p <0.04) and SLR (PRO 100% → 29%, p <0.01, and EXT 100% → 57%, p <0.01).
Conclusions. 1. The type of intervertebral disc damage determines the functional status of young people with degenerative disc disease. 2. The study demonstrated and confirmed a positive effect of traction on the functional status of subjects with lumbar disc herniation. 3. Traction techniques are safe and can be successfully used in the treatment of LDH.
Examination of Lumbopelvic and Lower Extremity Movements in two Subgroups of People with Chronic Low Back Pain Based on the Movement System Impairment Model During a Stair Descending Task
Authors: Namnik Neda , Salehi Reza , Shaterzadeh-Yazdi Mohammad Jafar , Esfandiarpour Fateme , Mehravar Mohammad , Orakifar Neda
Published: July 2019

Background. Excessive and early lumbopelvic motion during functional tasks is associated with increased pain and symptoms in people with low back pain. The purpose of the current study was to compare lumbopelvic and lower extremity movements in two subgroups of chronic low back pain sufferers and healthy subjects during a stair descending task based on a movement system impairment model.
Material and methods. A clinical examination was conducted to assign people with low back pain to movement system impairment-based subgroups. A control group included 18 healthy subjects, a lumbar Rotation with Flexion group included 12 subjects, and a lumbar Rotation with Extension group included 16 subjects. Differences in kinematics data between the groups were recorded during a stair descending task using a 7-camera 3-dimensional motion capture system.
Results. In the lumbar Rotation with Flexion group, the onset of lumbar movement occurred earlier than in the control group (p = 0.043). In the lumbar Rotation with Flexion group, axial and frontal plane rotation of the pelvis and lower extremity were significantly greater than in the control group. Mean differences between the lumbar Rotation with Extension and control group were minimal for the motion assessed.
Conclusion. Early and excessive lumbopelvic movement and more axial rotation in the lower extremities during a stair descending task were found in the lumbar Rotation with Flexion subgroup, which can be an important factor contributing to the development or persistence of low back pain in this group.
Use of Three-dimensional Printing and Patient-matched Implant in Total Hip Arthroplasty – a Case Study
Authors: Sypień Piotr , Łęgosz Paweł , Małdyk Paweł
Published: July 2019

We present a case report of a 70-year-old female patient with a history of right hip dysplasia and total hip arthroplasty complicated by chronic periprosthetic hipction. Failure of oral antibiotic treatment was an indication for implant removal. A computed tomography scan performed during qualification for reimplantation revealed massive bone defects in the pelvis. A three-dimensional printed patient-specific anatomical model of the pelvis helped to determine the precise position and cup size in preoperative planning and prepare a patient-matched acetabulum. The custom-made endoprosthesis was implanted during revision arthroplasty.
Europäischer Tarifbericht des WSI – 2018 / 2019: Positive Tariflohnentwicklung stabilisiert Wachstum in Europa
Authors: Lübker Malte
Published: July 2019

In den EU-Ländern sind im Durchschnitt die Nominallöhne im Jahr 2018 deutlich stärker (+2,8 %) als in den Vorjahren gewachsen. Auch im laufenden Jahr setzt sich das Wachstum fast unvermindert fort. Ein wesentlicher Faktor für diese Entwicklung ist die Dynamik der Tariflöhne. Diese stiegen im vergangenen Jahr in der Euro-Zone um 2,0 % – der höchste Zuwachs seit fünf Jahren. Trotz überdurchschnittlich hoher Steigerungsraten in vielen osteuropäischen Ländern besteht in Europa aber weiterhin ein erhebliches Lohngefälle, das sich an der Spannweite der jährlichen Arbeitnehmerentgelte von 9100 € (Bulgarien) bis 70 000 € (Luxemburg) ablesen lässt. Eine Verstetigung des noch immer moderaten Expansionskurses bei den Löhnen ist auch angesichts der Eintrübung der Konjunktur wirtschaftlich sinnvoll, da höhere Löhne die Binnennachfrage stärken und eine wichtige Voraussetzung für höhere Inflationserwartungen und damit mittelfristig für eine Normalisierung der Geldpolitik sind. Die Aufgabe der Tarifpolitik bleibt aber gesellschafts- und verteilungspolitisch. Eine Stärkung der Tarifvertragsinstitutionen könnte einen wichtigen Beitrag zur Bewältigung des von vielen Bürgern empfundenen Gerechtigkeitsdefizits der Europäischen Union leisten.
SELECTION OF MODE OF ANODIC TREATMENT OF GRAPHITE IN A SPENT NITRIC ACID ETCHING SOLUTION FOR PRODUCING THERMALLY EXPANDING GRAPHITE COMPOUNDS
Authors: Frolov Ivan N. , Zabudkov Sergey L. , Yakovlev Andrey V. , Lopukhova Marina I.
Published: July 2019

The possibility of using galvanic waste for the synthesis of graphite thermo expanded compounds has been shown. An electrolyte on the basis of a spent nitrate solution of etching copper parts containing cations of various metals in its composition was taken as an example, thereby solving an environmental issue related to the problem of utilization of solutions containing nitric or sulfuric anions in its composition. The processes occurring in the synthesis of thermally expanding graphite compounds on platinum and graphite electrodes in the electrolyte under investigation were studied by the method of potentiodynamic curves. The currents on the potentiodynamic curves before reaching the oxygen evolution potential were due to the oxidation of the surface-functional groups followed by intercalation of the graphite matrix. It was revealed that the potential for oxygen evolution in the electrolyte based on the spent nitric acid solution of etching of copper parts is slightly lower than in 58% HNO3 due to the presence of metal cations in the composition. Free metal cations attract a part of water molecules to form hydrate shells, while copper cations form complexes where H2O molecules are ligands, which makes it difficult to release oxygen. In the electrochemical synthesis of thermally expanding graphite compounds, potentiostatic and galvanostatic modes were applied. A range of potentials of 1.8 - 2.2 V was chosen for performing the synthesis in the potentiostatic mode. Recommendations are given for the application of the galvanostatic mode with the current of anodic treatment of 60 - 140 mA (per 1 g of graphite) for the synthesis of graphite thermo expanding compounds in industrial volumes. The thermo expanded graphite obtained in this manner is characterized by a bulk density of less than 2 g/dm3.
INTERRELATION BETWEEN CATALYTIC REDUCTION RATE AND SOLUBILITY OF NITROBENZOIC ACID ISOMERS
Authors: Nemtseva Marina P. , Sharonov Nikolay Yu.
Published: July 2019

The solubility of nitrobenzoic acid isomers is determined from the concentration of solution in equilibrium with the solid phase at a temperature of 303 K in an azeotropic aqueous solution of 2-propanol, including additives of acetic acid and sodium hydroxide, with an error of no more than 5%. It is shown that the lowest solubility in all these media is observed for para-nitrobenzoic acid, and the maximum for the meta-isomer. The addition of acid or base to the liquid phase assists an increase in solubility for all isomers of nitrobenzoic acid. The most significant changes in solubility occur in the presence of sodium hydroxide in the water-alcohol solvent. The shift of the maxima in the absorption spectra was compared with the change in the solubility value. It has been established that with increasing solubility, the rate of liquid phase catalytic hydrogenation of nitrobenzoic acid isomers on the skeletal nickel catalyst decreases. А linear correlation between the solubility of reagents and the rate of their reduction is revealed. The observed interrelation for para- and meta-isomers in neutral and acidic aqueous-alcoholic media is mostly caused by the influence of solubility on the adsorption ability of the hydrogenated compound on the surface of the nickel catalyst. Deviations from this dependence in the presence of sodium hydroxide can be explained by ionization of the of nitrobenzoic acid isomers molecules and by redistribution of the forms of hydrogen adsorbed on the surface of the nickel catalyst. The reason of the distinction in a similar correlation for isomers with a substituent in the ortho-position relative to the nitrogroup is the possibility for forming an intramolecular hydrogen bond in all used media.
KINETICS QUASIINVARIANTS OF CHEMICAL REACTIONS IN CLOSED SYSTEMS
Authors: Fedotov Vladislav Kh. , Kol'tsov Nikolay I.
Published: July 2019

The limitations of the dual-method and its extended version of the multi-experiment method in determining the exact time kinetic (thermodynamic) invariants and approximate invariants (quasiinvariants) of chemical reactions in closed isothermal systems are discussed. It is shown that for reactions, which allow except for internal equilibria, also boundary equilibria (multiple equilibria, multiequilibrium), for example, autocatalytic ones, there are always some "inconvenient" boundary values of reagent concentrations. These "uncomfortable" values cannot be used as the initial concentrations (conditions) for non-equilibrium multi-experiments (forward, reverse or intermediate), because for these values of non-equilibrium solutions cease to exist and, consequently, the reaction can proceed only in the equilibrium regime. As a result, the "usual " method of multi-experiments, using only the boundary values of the equilibrium concentrations of reagents, is not applicable. In this paper, a generalization of this method is proposed and a technique for conducting multi-experiments is developed, which is applicable for wider classes of reactions, including those with boundary equilibria, as well as autocatalytic reactions. This generalized method of multi-experiments (MME) allows one to bypass the limitations of the conventional multi-experiment method (dual-method) and to determine the exact time thermodynamic (kinetic) invariants of linear and some nonlinear chemical reactions, as well as approximate time invariants of any nonlinear chemical reactions in closed isothermal systems. The conditions of multi-experiments which are necessary for the correct operation of this method are determined. Examples of using the generalized method of multi-experiments for one-step and two-step nonlinear reactions with one and two independent reagents, respectively, are given. The kinetic time invariants and quasinvariants found with this method are compared with the exact solutions for the cases where they exist.
VISCOSITY OF MONO-, DI- AND TRIETHYLENE GLYCOL AQUEOUS SOLUTIONS AT 298.15 K
Authors: Loskutov Valentin V.
Published: July 2019

The aim of this study was to analyze the change in the complex structure formed in water-glycols mixture under mixture composition. The dynamic viscosity for various glycol (mono-, di- and triethylene glycol) aqueous solutions have been measured over wide range of concentration at temperature 25 °C and atmospheric pressure. The new scale of viscosity concentration dependences of various glycols for common description in range of low glycol composition was suggested. From experimental data, the excess viscosity (deviation in viscosity) was calculated. Excess viscosity was negative for monoethylene glycol – water mixture over the entire range of composition. In the case diethylene glycol –water mixture excess viscosity values were found to be negative between 0 and 20 mol %, then became positive in the diethylene glycol rich region. In the case triethylene glycol – water mixture excess viscosity values were negative between 0 and 10 mol %. The Grunberg-Nissan parameter was calculated. By comparing the monoethylene glycol – water hydrogen bonding, reported in literature and Grunberg-Nissan parameter variation versus glycol molar fraction, a correspondence between Grunberg-Nissan parameter and the complex varieties was established. It was shown, that concentration dependence of the Grunberg-Nissan parameter separates the different concentration regions. The variation of the Grunberg-Nissan parameter with glycol molar fraction deals with the interaction variation between water and glycol molecules, the Grunberg-Nissan parameter slop varies.
SYNTHESIS, STRUCTURE AND CATALYTIC PROPERTIES OF Pd NANOSTRUCTURED MATERIALS IN p-NITROANILINE CATALYTIC HYDROGENATION
Authors: Doluda Valentin Yu. , Sidorov Alexander I. , Sulman Esther M. , Latypova Adele R. , Filippov Dmitry V. , Lefedova Olga V.
Published: July 2019

Статья посвящена разработке палладиевых катализаторов на носителях, исследованию их структуры, каталитических свойств и их корреляции с активностью катализаторов в гидрировании п-нитроанилина. Серия палладиевых нанесенных катализаторов была синтезирована с использованием носителей: Al2O3, SiO2 и угля АР-Д для стабилизации частиц Pd с загрузкой активного металла 3, 4, 5 мас. долей (%). Образцы катализаторов были синтезированы с использованием метода осаждения и охарактеризованы сканирующей электронной микроскопией, температурно-программируемым восстановлением, физической сорбцией азота, инфракрасной спектроскопией и испытаны в процессе каталитического гидрирования п-нитроанилина. В работе показан эффективный подход получения функциональных материалов с точки зрения применения катализа. Основными преимуществами такого подхода являются дешевизна и простота внедрения, которые дают возможность получать функциональные материалы прямо на месте применения. Все используемые химикаты широко доступны, и дополнительное оборудование не требуется. Активность образцов катализаторов в процессе гидрирования п-нитроанилина имеет сильную корреляцию со значениями дисперсности нанесенного металла и кислотностью носителя. Образец с 5 мас.% Pd/γ-Al2O3 показывает наибольшую активность ~ 4,6 ∙ 10-5 моль (H2)/с., где носитель катализатора характеризуется высокой кислотностью, а нанесенный металл умеренной дисперсностью. Сравнение данных активности катализатора и содержания пор различных размеров показало определенную корреляцию. После реакции гидрирования 4-нитроанилина изменение размеров пор катализаторов может дать косвенную информацию о предполагаемых физических процессах, происходящих на поверхности катализатора. В целом, по полученным результатам была обнаружена корреляция между структурой, физико-химией катализатора и его активностью в гидрировании п-нитроанилина.
INTERACTION OF NATURAL AND SYNTHETIC POLYELECTROLYTES WITH BOVINE SERUM ALBUMIN
Authors: Smirnova Natalya N. , Smirnov Kirill V.
Published: July 2019

Interaction of a number of natural and synthetic polyelectrolytes (PE): chitosan, poly‒N,N‒dimethyl‒N,N‒diallylammonium chloride, sodium carboxymethylcellulose and aromatic copolyamide, synthesized on the bases of dichloranhydride of isophthalic acid and two diamines (4,4’‒(2,2’‒sodium disulfonate)‒diaminodephenyl, 4,4’‒(2,2’‒dicarboxylic acid)‒diaminodiphenylmethyl) and bovine serum albumin (BSA) in aqueous solutions were studied. It was shown that as a result of macromolecular reactions protein‒polyelectrolyte complexes (PPC) forms, stabilized mainly by electrostatic forces. To characterize their composition we used the value of parameter φ, defined as an amount of ionic groups of polyelectrolytes calculated per macromolecule of protein. Using spectrophotometry and conductometry it was established that the composition of PPC in the studied systems when components are mixed at optimal conditions corresponds to the value of φ ~30 – 90. The conditions for the existence of insoluble PPC were determined. In the case of precipitation of poly-N,N‒dimethyl‒N,N‒diallylammonium chloride and chitosan in protein – polyelectrolyte reactions the maximum yield of the product is observed at pH ≥ 7. The introduction of sodium carboxymethylcellulose and aromatic copolyamide into the interaction with protein accompanied by shifting the range of PPC existence into the acidic region: the maximum yield of the product is observed at рН ≤ 4. The size of the formed complex particles ranges from 10 nm ([PE]/[BSA] = 0.01 – 0.05 g/g) to ~ 1.0 ‒ 5.5 μm ([PE]/[BSA] = 0.1 – 0.35 g/g). In case of relatively short‒chained aromatic copolyamide, containing significant amount of non‒ionized carboxylic groups, the ratio of micron size particles is about 5%. The presence of sulfonate and carboxylic groups in the composition of copolyamide gives an additional opportunity to regulate the conversation degree in the interpolyelectrolyte reactions, thus also implying the structure and the composition of the formed complexes.
EXTRACTION OF Pd(II), Ni(II), Co(II), Cu(II), Fe(III) AND Zn(II) IONS WITH 1,2,3-BENZOTRIAZOLE IN SYSTEMS BASED ON ANIONIC SURFACTANTS
Authors: Zabolotnykh Svetlana A. , Gilyova Ksenia O. , Lesnov Andrey E. , Denisova Svetlana A.
Published: July 2019

The phase state and extraction capacities of aqueous systems based on sulfonol, sodium dodecylsulfate or alkylbenzenesulfonic acid as anionic surfactants and hydrochloric (or sulfuric) acid against the influence of 1,2,3-benzotriazole as an organic complexing reagent were studied. Introduc-tion of 1,2,3-benzotriazole into the systems resulted in its exfoliation in two liquid phases. Optimal concentration parameters of the extraction process in the systems under investigation were found: the total volume of the system (10 ml) contained sulfonol or sodium dodecyl sulfate (0.6 g), alkylbenzenesulphonic acid (0.5 g), and 1,2,3-benzotriazole (0.35 g). The aliquation state was maintained in the following concentration interval of HCl (H2SO4), mol L-1, for the systems with: (a) sodium dodecylsulfate: 0.5-6 (0.5-4), (b) sulfonol: 0.1-4 (0.05-3), (c) alkylbenzenesulfonic acid: 0-4 (0-3). Distribution of 0.01 mol L-1 of Pd(II), Ni(II), Cu(II), Co(II), Zn(II) and Fe(III) ions in the above systems was studied at the optimal components ratios. In the systems containing sodium dodecylsulfate, no quantitative extraction of metal ions was observed. In the systems with sulfonol and alkylbenzenesulfonic acid, practically complete (99.9%) extraction of palladium appeared to be possible in the entire range of acid concentrations; with minimal acid content, over 95% of copper and nickel were extracted. The extraction of palladium ions in the presence of interfering ions was studied. Quantitative recovery of palladium ions was found to not be obstructed by 500-fold molar excess of copper, 300-fold excess of cobalt and 70-fold excess of nickel.
INORGANIC PIGMENTS BASED ON HETEROPOLY COMPOUNDS FOR PROTECTIVE-DECORATIVE ALUMINOPHOSPHATE -BONDED COATINGS
Authors: Radishevskaya Nina I. , Nazarova Anastasia Yu. , Vereshchagin Vladimir I.
Published: July 2019

Inorganic pigments are synthesized in the paper. These inorganic pigments contain molybdophosphates and molybdosilicates of transition metals as chromophores, and dispersed silicates with different structural groups of silicon-oxygen tetrahedra, in particular marshalite and wollastonite, as substrates. The inorganic pigments obtained are brightly colored, highly light-stable and acid-resistant. The color of the pigments depends on the transition metal used during the synthesis process, as well as on the acid medium. The paper demonstrates the possibility of using inorganic pigments based on heteropoly compounds for protective-decorative and fire-resistant aluminophosphate-bonded coatings. X-ray diffraction (DRON-UM1 diffractometer, filtered Co Kα radiation) and IR spectroscopy (Nicolet 5700 FTIR spectrometer) show that the phases of AlPO4, Al(PO3)3 and Al(H2PO4)3, quartz (wollastonite), and pigment are contained in the alumophosphate-bonded coating. A small amount of the phase Al3(OH)3(PO4)2·H2O is detected. Thermal analysis performed using the SDTQ600 thermal analyzer shows that the structure of protective-decorative coatings is preserved at the temperatures of about 900 °C, which allows these pigments to be used for the manufacture of heat-resistant ink compounds. Optical studies (Axiovert 200M) confirms that after thermal treatment the colored coatings have a homogeneous structure that does not contain cracks and can, therefore, be used for coating both metal and concrete surfaces.
La toponymie française de l’ALSAMA, un patrimoine immatériel désenfoui et fertilisé
Authors: Léonard Carol Jean
Published: July 2019

Les toponymes sont de véritables témoins de la présence de groupes humains qui y trouvent l’un des ciments de leur identité et de leur solidarité. Ils constituent des arguments de validation culturelle et de légitimité territoriale. La toponymie française apparue sur le territoire des provinces des Prairies canadiennes au cours des trois derniers siècles témoigne du passage puis de l’enracinement de francophones au coeur du continent nord-américain. Cette toponymie, si abondante autrefois, ne participe plus que difficilement à l’édification de l’habitus de l’endogroupe francophone. Mus par le désir de maintenir vivant et pérenne ce trésor toponymique dans la littératie culturelle francophone, nous avons entrepris des recherches à long terme visant l’exhumation, l’identification, l’enregistrement et la diffusion de cette toponymie française.
Du Mentô, de l’écrivain et du conteur. Mots et magie aux Antilles et en Acadie
Authors: Crainic Corina
Published: July 2019

Cet article examine la manière dont la violence symbolique se manifeste dans les univers littéraires de l’Acadie et des Antilles françaises. Elle serait ici et là le legs colonial d’autant plus honni qu’il est lié à ce qui a présidé à la logique ayant structuré la traite négrière vers les Antilles et la Déportation des Acadiens hors des terres habitées depuis le début de la colonisation française des Amériques. Il s’agit donc chez Antonine Maillet et chez Patrick Chamoiseau de parer à cette situation grâce à un recours à l’imaginaire qui n’est pas abordé comme seul exutoire, mais comme « terrain » propice à l’avènement d’une libération ou, plus prosaïquement, d’un apaisement. L’article est ainsi l’occasion de réfléchir à cet imaginaire qui modifierait la réalité, la bonifierait même, augmenté qu’il est par la parole, par le conte et par une narration ayant des connivences avec des pratiques religieuses ou mystiques.
Se réinventer en Amérique : le réel et le fictionnel dans l’oeuvre de Régine Robin et de Moacyr Scliar
Authors: Levemfous Sérgio Israel
Published: July 2019

Du fait d’une population assez hétérogène, mêlant des cultures et ethnies variées, le caractère interculturel du Canada, et particulièrement du Québec, pourrait relever d’une forme de patrimoine immatériel. À partir de deux monologues intérieurs exprimant un conflit de générations, le conte « L’immense fatigue des pierres » du livre éponyme de la franco-québécoise Régine Robin, esquisse de façon fictionnelle la ville de Montréal, la condition juive, l’errance et la problématique du multilinguisme. Professeure, sociologue, romancière-essayiste et essayiste-romancière, Robin dessine, au fil d’un récit bio-fictionnel, l’image d’une Montréal lieu d’accueil où il est possible d’élaborer, de construire et de déconstruire appartenances et mémoires. Le contexte littéraire américain est riche de ces imaginaires mettant en scène l’insertion d’individus provenant de migrations. Au Brésil, l’écrivain Moacyr Scliar a consacré quasiment l’ensemble de son oeuvre à la problématique de l’immigration juive et son inscription dans le contexte national. Cet écrivain, qui a été membre de l’Académie brésilienne des lettres, a écrit plus de quatre-vingts livres, essais, contes et romans, de sorte que les exemples fictionnels sur cette problématique sont nombreux. Nous retiendrons, en guise de contrepoint au texte de Régine Robin, le parcours de deux personnages du roman Sa Majesté des Indiens qui quittent avec leurs familles l’Europe pour le Brésil, chacun migrant vers une région et des réalités différentes. Le récit permet d’exposer, à partir des expériences vécues par ces personnages, la diversité culturelle du pays.
Diseño y desarrollo de una app móvil para la crianza de bebés
Authors: Fernández Colodrero María
Published: July 2019

“my wee app” es una aplicación móvil que monitoriza las rutinas esenciales del bebé para que padres y madres puedan llevar un correcto control horario. De forma sencilla, rápida e intuitiva, el usuario puede registrar la información temporal relativa a la lactancia, el cambio de pañales, las horas de descanso, los baños, las medicinas y las visitas al pediatra.
Prototipo de plataforma de arte digital interactivo para televisores inteligentes
Authors: Amengual Gomila Pere
Published: July 2019

App(art) nos permite disfrutar como espectadores de interesantes obras de arte digital interactivo y valorarlas como críticos, haciendo público nuestro apoyo. También podemos convertirnos en comisarios realizando nuestras selecciones, que quedarán asociadas a nuestro perfil de usuario.
A three-phase mapreduce-based algorithm for searching biomedical document databases
Authors: Grbić Milana
Published: July 2019

Retrieving information from large document databases is in the focus of scientific research in recent years. In this paper, a parallel algorithm for searching biomedical documents based on the MapReduce technique is presented. The algorithm consists of three phases: preprocessing phase, document representation phase, and searching phase. In the first phase, lemmatization and elimination of stop words are performed. In the second phase, each of the documents is represented as a list of pairs (word, tf-idf index of the word). The third phase represents the main searching procedure. It uses a specially designed ranking criterion, which is based on a combination of the term frequency - inverse document frequency (tf-idf) index and the indicator function for each query word. Four different versions of ranking criteria are proposed and analyzed. The algorithm performances are tested on different subsets of the large and well-known PubMed biomedical document database. The results obtained by the experiments indicate that the proposed parallel algorithm succeeds in finding high-quality results in a reasonable time. Comparing to the sequential variant of the algorithm, the experiments show that the parallel algorithm is more efficient since it finds high-quality solutions in significantly less time.
HIGHER EDUCATION INSTITUTIONS AND MODERN BUSINESS ENVIRONMENT: CASE STUDY OF THE FACULTY OF ECONOMICS (UNIVERSITY OF BELGRADE)
Authors: Mojić Dušan
Published: July 2019

Higher education institutions in Southeast Europe have undergone radical transformations in the lastdecades, mainly because of the impact of turbulent changes in their environment. This has particularlyreferred to economic and business faculties, which increasingly aim their activities toward businessenvironment. Designing practice-oriented curricula and promoting immediate cooperation withcompanies have represented the main forms of these actions. Main goal of the analysis in the paperhave been the transformations in this direction carried out at the Faculty of Economics (University ofBelgrade), one of the leading higher education institutions in the region in the field of economics.
KVANTITATIVNO POPUŠTANJE EVROPSKE CENTRALNE BANKE
Authors: Cvijanović Drago , Vojinović Željko , Živković Sanja
Published: July 2019

Kvantitativno popuštanje (engl. quantitative easing), kao nestandardna meramonetarne ekonomije, predstavljala je rešenje najvećih svetskih finansijskih sistema ucilju suzbijanja recesije i negativnih efekata Svetske ekonomske krize, primarnoprouzrokovane na hipotekarnim tržištima SAD-a 2008. godine. Četiri najveće centralnebanke sveta (FED, ECB, BOE, BOJ) opredelile su se za program mera masovnog otkupaaktive na finansijskom tržištu, u uslovima ograničenog targetiranja inflacije politikomniskih kamatnih stopa. Fokus rada je na analizi aktivnosti i efekata politikekvantitativnog popuštanja Evropske Centralne Banke. Evropska Centralna Banka,oslanjajući se na bankocentričnost finansijskog sistema, fokusirala se na mehanizampovećanja ponude novca primarnom kupovinom državnih obveznica posredstvomnacionalnih centralnih banaka. Ciljevi programa kvantitativnog popuštanja su u krajnjojinstanci – povećanje stope inflacije na 2% u srednjem roku, uz povećanje investicija,potrošnje i podsticaj privrednog rasta, uzevši u obzir široki mah nastupajuće recesije kaoposledica distorzija na svetskom finansijskom tržištu. Kao rezultat primenjenih meranestandardne politike masovnog otkupa aktive, dolazi do direktnog povećanja ponudenovca i istovremeno do povećanja bilansne sume (aktive) centralnih banaka.
Using the Multitheory Model to Predict Initiation and Sustenance of Physical Activity Behavior Among Osteopathic Medical Students
Authors: Nahar Vinayak K. , Wilkerson Amanda H. , Stephens Philip M. , Kim Richard W. , Sharma Manoj
Published: July 2019

Context

The multitheory model (MTM) is a newly developed fourth-generation theoretical framework that addresses both initiation and sustenance of health behavior change. Studies have shown that the MTM is efficacious in predicting a range of health behaviors.

Objective

To assess the utility of the MTM in predicting initiation and sustenance of physical activity behavior among osteopathic medical students.

Methods

In this cross-sectional study, a volunteer convenience sample was recruited from an osteopathic medical school student population at a university in the southeastern region of the United States. An online survey was used to collect self-reported data on sociodemographic information and MTM constructs. Multiple linear regression using the enter method for modeling was performed to determine the predictive ability of the MTM constructs.

Results

Of the 135 participants, 52.6% were women and 67.7% were white. The initiation model explained 25.8% of the variance (adjusted R
2=0.238). Behavioral confidence was a statistically significant predictor of initiation of physical activity behavior change. The sustenance model explained 41.7% of the variance (adjusted R
2=0.402). Changes in social environment and emotional transformation were statistically significant predictors of sustenance of physical activity behavior change.

Conclusion

The MTM appears to be a robust theoretical framework for designing behavior change interventions to increase physical activity among osteopathic medical students.
Empathy in Medicine National Norms for the Jefferson Scale of Empathy: A Nationwide Project in Osteopathic Medical Education and Empathy (POMEE)
Authors: Hojat Mohammadreza , Shannon Stephen C. , DeSantis Jennifer , Speicher Mark R. , Bragan Lynn , Calabrese Leonard H.
Published: July 2019

Context

National norms are necessary to assess individual scores from validated instruments. Before undertaking this study, no national norms were available on empathy scores. The Project in Osteopathic Medical Education and Empathy (POMEE) provided a unique opportunity to develop the first national norms for medical students.

Objective

To develop national norms for the assessments of osteopathic medical students’ empathy scores on the broadly used and well-validated Jefferson Scale of Empathy (JSE) at all levels of osteopathic medical school education.

Methods

Participants were students from 41 of 48 participating campuses of osteopathic medical schools. Students were invited to complete a web-based survey, which included the JSE, in the 2017-2018 academic year.

Results

A total of 16,149 completed surveys were used to create national norm tables. Three national norm tables were developed for first-year matriculants and for students in preclinical (years 1 and 2) and clinical (years 3 and 4) phases of medical school. The norm tables allow any raw score on the JSE for male and female osteopathic medical students from matriculation to graduation to be converted to a percentile rank to assess an individual's score against national data.

Conclusions

National norms developed in this project, for men and women and at different levels of medical school education, can not only be used for the assessment of student's individual scores on the JSE, but can also serve as a supplementary measure for admissions to medical school and postgraduate medical education programs.
Difference in Types of Freshwater Fish as Raw Materials for the Preference Level of Korean Fish Cake
Authors: Putri Muthia Nurlestari , Pratama Rusky Intan , Andriani Yuli , Rostini Iis
Published: July 2019

Aims: This research aims to determine the effect of different types of freshwater fish as raw material for making Korean fish cake to the level of preference of panelists.

Place and Duration of Study: Fisheries Product Processing Laboratory, Faculty of Fisheries and Marine Sciences, Padjadjaran University in February-March 2019.

Methodology: The method used in the research was the experimental method with the treatment of three different freshwater fish raw materials, namely freshwater pomfret, catfish and red tilapia. Data processing using Friedman Test and Bayes Test. The observations made are the hedonic test which includes appearance, aroma, texture and taste. Physical tests in the form of a folding test and bite test, chemical tests include tests of water, protein and fat levels.

Results: The results showed that Korean fish cake with raw materials of red tilapia was Korean fish cake which was most preferred by panelists with an average score of appearance, aroma, texture and taste are 7.50; 6.70; 7.30 and 6.90. Folding test with a value of 5 (very rubbery), bite test with a value of 8 (strong). Chemical test results of water content is 38.38%, protein level is 15.64% and fat level is 9.05%.

Conclusion: Korean fish cake with raw materials of red tilapia was Korean fish cake which was most preferred by panelists.
Condition Factor, Food and Feeding Habit of Chrysichthys nigrodigitatus (Siluriformes: Bagridae) from Lower River Benue, Makurdi, Nigeria
Authors: Thomas Edem, Edem , Ogamode Odey, Christopher
Published: July 2019

Background and Objective: The feeding habit as well as the condition factor of Chrysichthys nigrodigitatus from lower river Benue was studied between July 2015 and September 2015.

Materials and Methods: The natural food of the fish in the Lower River Benue was studied from stomach contents of the fish. A total of 100 stomachs were randomly examined and analyzed using two methods; the frequency of occurrence and point methods. About 92 had food items while 8 were empty. Analysis of variance (ANOVA) was used to test for significant difference at 95% confidence limit in the food eaten by these species and also the degree of stomach fullness.

Results: Food items encountered using frequency of occurrence method include fish parts (47.62%), seeds (40.49%), sand/mud (30.09%), detritus (30.95%), digested food (29.76%), insect parts (27.38%), mollusk (25.00%) and algae (22.62%).

Conclusion: C. nigrodigitatus had a euryphagous food habits and based on condition factor the fish were in good health.
Dried Pig Feces: Impacts on Growth, Haematology and Histology of Clarias gariepinus
Authors: Ajiboye Adebola Oluyinka , Ajani Funmilola , Emikpe Benjamin O. , Adesanya Abiodun Bukola
Published: July 2019

Aims: Improper utilization and disposal of pig faeces in pig farms have been a great concern due to their hazards and risks they constitute to the environment. This situation calls for effective utilization of pig Feces for fish feed. This project was designed to provide information on safe level of Dried Pig Feces (DPF) on growth, histology and haematology of Clarias gariepinus.

Study Design: A twelve week feeding trial experiment was conducted using one hundred and fifty samples of C. gariepinus juveniles. The fish meal was replaced at different graded levels of DPF (0%, 25%, 50%, 75% and 100%) and was coded T1, T2, T3, T4 and T5 respectively.

Materials and Methods: Growth parameters, histology of vital organs and haematology of the fish samples were determined according to standard methods. Data obtained were analysed using ANOVA and Duncan multiple range test was used to separate the means.

Results: The Mean Weight Gain (MWG) revealed a significant (P<0.05) value in T3 (69.40 g), while 100% inclusion exhibited lowest MWG (21.07%). The Packed Cell Volume, Haemoglobin and Red Blood Cell values obtained decreased with increase in DPF inclusions, while an increase was observed in T4 (26.50%). White Blood Cell count was significant (P<0.05) in T3 (16,150±2.07 g/l) and decreased in T4(15,800±1.01 g/l) and T5(12,650±0.85 g/l) respectively. Histological results confirmed the absence of lesions in the heart, gills and the intestine of fish samples. Lesions in the liver were severed in T4 and T5.

Conclusions: The findings of this study revealed that 50% inclusion of DPF is the safe level for growth of C. gariepinus. Since the histological results revealed no lesions in all the vital organs, except the liver that had severe lesions, DPF can be recommended as an alternative feed ingredient.