bluuebunny/crossref_metadata_2025 huggingface dataset:
EFFECT OF ILLUMINATION ON GROWTH AND BEHAVIOR OF TWO CARP FISH SPECIES (CARASSIUS GIBELIO AND C. CARASSIUS)
Authors: RUCHIN Alexander B.
Published: August 2021

Light is one of the most important environmental factors that influence many physiological, biochemical and behavioral reactions of aquatic organisms. In this work, experiments were conducted to study how illumination influences on the growth of juveniles of two carp fish species (Carassius gibelio and Carassius carassius). In this work, experiments. The experiments were carried out in aquariums and trays with a light gradient. Twenty-twenty five fish were placed in each aquarium, three-four individuals were placed in trays. Fish were fed to saturation three times a day. Optimal types of illumination were identified for the growth of both species. 200–930 lx is optimal for juvenile Carassius gibelio. 230–500 lx is optimal for juvenile Carassius carassius. High illumination and total darkness negatively influenced the growth of both species. Very high illumination considerably slowed the growth rate. Survival in all cases was at 100%. Motor activity of juvenile Carassius gibelio in light-gradient conditions was higher than in balancing illumination. The number of vector movements, the average distance of movement and the total path of fish in the light gradient exceed the corresponding values in control in balancing illumination. When there was no food, the elected zones of the juvenile Carassius gibelio were shifted toward higher illumination. When the food was absent for half an hour, the juveniles chose a zone with the illumination of 600 lux (total time of stay was 15.8 minutes for 1 h). When it was absent for two hours, the juveniles chose a zone with the illumination of 1000 lux (17.3 minutes), and when it was absent for 24 hours, juveniles chose a zone with the illumination of 1000–1200 lux (28.5 minutes). The study discusses the effect of light on growth, the behavior of two species of fish.
ANTIBACTERIAL ACTIVITY OF THE ETHANOL EXTRACT OF Eugenia dysenterica DC (MYRTACEAE)
Authors: GONÇALVES Thaís Paula Rodrigues , LIMA William Gustavo , SILVA Izabela Caputo Assis , PARREIRA Adriano Guimarães , LIMA Luciana Alves Rodrigues dos Santos
Published: August 2021

The large variety of plant specimens found in Brazil with still unexplored medicinal potential, combined with the increase in bacterial resistance to antimicrobials traditionally employed, opens an important field of research aimed at prospecting new drugs. In this context the objective of this work was to evaluate the antibacterial potential of Eugenia dysenterica and to characterize its phytochemical profile. Ethanolic extracts were obtained by drying, grinding, turbo-extraction and lyophilization of the leaves of the plant. The CIM and CBM tests were performed to evaluate the antimicrobial potential on the following strains: Proteus mirabilis ATCC 15290, Echerichia coli ATCC25922, Staphylococcus aureus ATCC29213 and Staphylococcus epidermides ATCC 12228. E. dysenterica presented bactericidal action at 2mg.ml-1 against S. aureus and bacteriostatic at 1mg.ml-1 against P. mirabilis. Several phenolic compounds were detected in the phytochemical screening, and the presence of these compounds may justify the biological potential of this plant.
HDPE/SILICA COMPOSITES- PART I: PREPARATION AND CHARACTERIZATION OF METHYLSILANE AND OCTYLSILANE-MODIFIED SILICAS
Authors: RAMOS Vanessa Machado Babinski , RÖHNELT Maurício Gammertt , BRAMBILLA Rodrigo
Published: August 2021

This paper reports the main results concerning the synthesis and characterization of methylsilane and octylsilane-modified silicas. The modification of the silicas with these groups aims to make the silica surface hydrophobic and thus compatible with high-density polyethylene (HDPE) in HDPE/silica composites. In the present work, two types of silica were organofunctionalized: a pyrogenic silica and a silica gel. The silicas were characterized by a series of complementary techniques with the objective of investigating the nature of the surface species and their textural and morphological characteristics. The SEM images showed that the modification of the silicas with organosilanes has been not resulted in changes on the morphology and on the size of silica particles. In relation to the texture properties, determined by N2 adsorption-desorption porosimetry, the silica modification resulted in a decrease of the specific area (SBET) and the mean pore volume, a behavior attributed to the partial coverage of the adsorption sites by the organosilane molecules. The TGA analysis showed that both the methylsilane groups and the octylsilane groups on the surface of silica and silica gel are thermally stable up to 200 ° C, which enables the organofunctionalized silicas in terms of thermal stability, for the process of preparing the composites by extrusion. The results of applying these organofunctionalized silicas in the development of HDPE/silica composites will be presented in a subsequent article, part II of this research.
ANALYSIS OF VOLATILE AND QUALITY CONTROL IN NAIL POLISH
Authors: DE MENEZES Joyce Castro , GOMES Fátima de Cássia Oliveira , MACHADO Ana Maria de Resende
Published: August 2021

Nail polishes are one of the most widely used cosmetics in the world and have complex chemical composition. In this study, labels were evaluated and physicochemical and microbiological analysis were performed in order to evaluate the quality of the marketed nail polishes. The identification of volatile chemical compounds and toluene quantification were determined by GC-MS. The results showed that 62% of the nail polishes did not present one or more regulated items for labeling. Density analysis presented values close to those recommended. The free formaldehyde test indicated the possible presence of this compound in concentrations above 0.01% in 93% of the samples. Microbiological analysis evidenced microbial growth and the presence of the pathogens Staphylococcus aureus and/or Escherichia coli. The CG-MS analysis allowed the identification of 29 volatile compounds, such as ethyl acetate, butyl acetate, toluene, N-ethyl-2-methylbenzenesulfonamide, dibutyl phthalate and acetyl tributyl citrate. Toluene was identified in samples whose label does not mention its presence. Toluene was identified in samples whose labels did not mention its presence. The results showed the need of a better quality control of the nail polishes available to the consumer, since the lack of information on the labels and the presence of pathogens and harmful substances to health may compromise their use.
pH OF BONE MARROW
Authors: NIKOLAEVA L. P.
Published: August 2021

The bone marrow is a “niche” for stem cells; determining the bone marrow pH value is of great importance. It is very difficult, almost impossible, to carry out the intravital determination of pH. In surgical practice, there are situations when doctors have no way to save the patient's lower limb because of the threat to life. In such cases, it is possible to extract the bone marrow from the bone marrow cavity of the amputated femur and examine it. The purpose of this research was to study the acid-base balance peculiarities of the marrow of long bones and carry out a comparative analysis of the obtained data and the indicators of flat bones. The study included 40 test samples of bone marrow. Lower limb amputations were performed because of foot gangrene. Bone marrow was extracted from the femur. The marrow of flat bones was obtained by a sternal puncture. In the pH test of the sternal puncture, the data varied within the range of the blood pH, i.e., between 7.35-7.45 and 7.8. The pH and gas composition data of the sternal puncture were identical to the blood indicators. The data of bone marrow obtained from the long bone was completely different. The acid-base balance strictly ranged from 6.7 to 6.9.
GEOMETRIC SPATIAL ABILITY AS AN ELEMENT OF COGNITIVE LEARNING PROCESS
Authors: ANAMOVA Rushana R. , NARTOVA Lidiya G.
Published: August 2021

University professors more and more often face serious problems of learning geometry and graphic disciplines. In this regard, it is very relevant to obtain a maximum efficient method to teach geometry and graphic disciplines. The purpose of the study is to test the hypothesis that the cause of problems arising in the process of mastering the geometric and graphic disciplines is the violation of continuity of the educational material and the low level of spatial ability of students. In the research, interviewing method (testing) and statistic method have been applied to process the results. It is established that spatial imagination helps a
person to perceive the shape of geometric objects by involving him/her into the cognitive process of feeling and control of spatial objects. Students who learned in school technical drawing the same as students who did not learn experience difficulties in mastering the geometric and graphic disciplines. For students who learned technical drawing in schools, the cause of bad retention of the material of the geometric and graphic discipline is low geometric spatial ability. For students who did not learn technical drawing in school, but who demonstrated a high geometric spatial ability, the cause of difficulties in the retention of the geometric and graphic disciplines are connected with the violation of continuity of the educational material. To effectively teach the geometric and graphic disciplines, it is necessary to apply methods of developments of the geometric spatial ability and to form the content of discipline using the principle of continuity.
NEW PARAMETERS FOR THE FOREST BIOMASS WASTE ECOFIREWOOD MANUFACTURING PROCESS OPTIMIZATION
Authors: RUOSO Ana Cristina , BITENCOURT Lisiane Corrêa , SUDATI Lucas Urach , KLUNK Marcos Antônio , CAETANO Nattan Roberto
Published: August 2021

Biomass has a large share in the energy generation matrix, due to the regional economic benefits. This work has as main objective to evaluate the parameters used in the manufacture of briquettes produced with forest residues and the economic engineering for the manufacturer. The forest residues were: wood chips and chips of Eucalyptus spp. and barks of Pinus taeda. The evaluations were the chemical characterization of forest residues and the costs involved in the briquetting process. The forest residues presented extractive chemical composition and lignin. The production costs of the briquettes were affected mainly by the equipment, being the Pinus taeda barks the one that presented higher production cost. However, the production costs obtained in this study are approximately 20% lower than the production costs using traditional methods for forest firewood. The energy value from biomass allows the reduction of the dependence of energy, which can be used for the generation of steam or electricity, for subsistence. A fact for energy conversion is to evaluate the material moisture. It is suitable to burn residues with moisture between 45 to 55%. The consumed electric energy is important to evaluate the total costs. The energy required depends on the quality of raw material and the system employed. Forest residues is an important source for eco firewood production, contributing to energy generation and decreasing of the solid waste stored at the company. In this way, the new parameters for briquetting biomass forest wastes shown in this work, which is an important stage of the process, make economically viable and environmentally suitable the eco firewood production.
MATHEMATICAL MODELING OF A NEW METHOD OF THERMAL PROTECTION BASED ON THE INJECTION OF SPECIAL COOLANTS
Authors: FORMALEV Vladimir F. , KOLESNIK Sergey A. , KUZNETSOVA Ekaterina L.
Published: August 2021

A closed mathematical model of heat and mass transfer under the non-isothermal filtration through the organized pores of coolants with a strong dependence of dynamic viscosity on temperature with further injection into a viscous gas-dynamic flotation with the formation of liquid film and evaporation under the influence of aerodynamic heat flows has been developed. The aim of the paper is to develop the physical and mathematical basis of thermal protection with the automatic supply of coolant having a strong dependence of dynamic viscosity on temperature (by 3–5 orders of magnitude when the temperature changes by 200–2500°C). Such thermal protection system allows for operating without the mass removal that preserves the geometry of the structural elements at the intensive heating, which is very relevant. To achieve this goal, a mathematical model
of the automatic coolant supply with filtration through the organized pores, injection into a high-temperature gasdynamic boundary layer with the formation of the protective liquid film and evaporation is formulated. The results with respect to the mass flow rate of the coolant, the mass evaporation rate of the formed liquid film and the temperatures of the structure which in all cases remain below the evaporation temperature of the cooler have been obtained.
ESTIMATION OF THE SIZE OF STAGNATION ZONES ON THE TERRITORY OF THE PROPANE-BUTANE TANK FARM AIMED AT INCREASING THE SAFETY OF THE FACILITY
Authors: OMELCHUK Mikhail V. , KOROTKOVA Yuliya S. , VORONTSOVA Elizaveta A.
Published: August 2021

The safety of the territory is directly dependent upon the propane-butane storage and use technology. The paper reveals the efficiency of FlowVision software-based computational fluid dynamics technology (CFD) in modeling the stagnation zones and the behavior of fuel-air mixture (FAM) cloud within the territory of storage facilities. Propane-butane storage tank farm storage was selected as the object of research. CAD SolidWorks was used in the design of his three-dimensional model. Methods using "dispersed heavy gas models" have been developed. It is based on the numerical solution of three-dimensional fluid and gas dynamics equations, including the laws of conservation of mass, momentum (the Navier-Stokes equation) and constitutive equation. Recommendations on changes to be implemented during the design stage of tank farms with propane-butane mixture have been developed in order to increase facility safety in case of equipment depressurization. It is known that buildings, located on the territory, impair the airflow, resulting in the presence of large stagnant zones. It has been established that as a result of the movement of air flow through the territory of the tank farm, the maximum areas of stagnation zones are observed with the north wind and the minimum – with the southeast wind. Using the three-dimensional modeling techniques and finite volumes the stagnation zones in the tank farm were computed for different wind directions and measurement heights, enabling a comprehensive assessment of the situation at the facility in question and development of series of safety-increasing measures.
THE CONTENT OF BIOLOGICALLY ACTIVE SUBSTANCES AND HEAVY METALS IN THE APPLES OF A RETAIL CHAIN IN THE LIPETSK REGION DEPENDING ON THE APPLE TREES VARIETIES
Authors: ZAKHAROV Vyacheslav L , ZUBKOVA Tatjana V
Published: August 2021

The relevance is based on the need to study the amount of biologically active substances and trace nutrients in apple varieties sold in the retail chain of the Lipetsk region. The purpose is to analyze the content of biologically active substances and trace nutrients of all apple varieties sold in the retail chain of the Lipetsk region. The article is the first to establish a close relationship between the term of apples ripening and the content of flavonols, pectic substances, anthocyanins, Fe, Zn, Cu, Ni, Pb, and Co in them. At the same time, the authors established a close correlation between the content of Fe and Zn in fruits (r = 0.8). Arbitration, titrimetric, photometric, iodometric, weight calcium-pectate, atomic-adsorption, ionometric, and correlation analysis methods were used to solve the tasks. In the Lipetsk region retail chain, the authors identified varieties of apples with the most significant mass of fruit and content of ascorbic acid, organic acids, dry substances, anthocyanins, flavonols, catechins, pectins, tanning and coloring substances, including tannin, carotenoids, including β- carotene, as well as mineral elements: Fe, Mn, Zn, Cu, Ni, Pb, Cd, and Co. The authors also determined the content of heavy metals in apples relative to the maximum allowable concentration (MAC). Autumn varieties contain the highest amount of ascorbic acid, carotenoids, carotene, tanning substances and coloring substances, and tannin. Winter varieties contain the least catechins, tanning, and coloring substances. The content of pectic substances, anthocyanins, and flavonols, reaches its maximum in winter varieties fruits. The content of flavonols most strongly varies, and the least - pH and content of organic acids of all the
biologically active substances in apple fruits. Iron content increases with the increase in zinc content. The content of mineral elements in the summer varieties is the lowest. The content of mineral elements and flavonols in apple fruits increases with the transition from summer varieties to autumn, and then to winter. The content of iron varies the most, and least of all - cadmium of the mineral elements in fruits. The content of all mineral elements varies most strongly in winter apple varieties.
LINEARIZATION OF AIR TEMPERATURES ON THE PACIFIC OCEAN ON THE EQUATORIAL LINE
Authors: DÍEZ César Manuel , SOLANO Carlos Javier
Published: August 2021

Shortwave radiation over the atmosphere of the Pacific Ocean influence directly on the temperature. So, it should be expected that air temperatures vary according to latitudes (because of the radiation), by one side; and, also, they vary according to the depth of the ocean, it means, longitudinally, by the other side. TAO Project of Pacific Marine Environmental Laboratory (PMEL) of National Oceanic and Atmospheric Administration (NOAA) of United States has data of air temperatures in the Pacific Ocean from 10º North to 10º South of latitude along the equatorial line, organized by meridians from 95º West to 135º East. The present project processes temperature data meteorological and mathematically, to regard their longitudinal evolution along the time and how points of the grid interact between themselves and how these interactions vary gradually from the east side of this ocean to the west means lag correlations. Nevertheless, there is a peculiar characteristic in air temperature on a great region of the West part of the Ocean, where variations change sharply, the fact that could be observed, again, by dint of lag correlation functions. The code used to process mathematically and plot these data was developed through the medium of Matlab student version from MathWorks Inc.
THE FEATURES OF DETONATION SPRAYING TECHNOLOGY FOR TUNGSTEN CARBIDE BASED COATINGS
Authors: BALDAEV Lev Kh. , KHAMITSEV Boris G. , BALDAEV Sergey L. , PROKOFIEV Mikhail V.
Published: August 2021

The authors studied the effect of key parameters of detonation spraying process on tungsten carbidebased coatings and their mechanical properties, microstructure, and phase composition. Two main tasks are solved when developing the technology for spraying the carbide-containing materials. The relationship is established between the phase composition of tungsten-based coatings and their strength, hardness, and substrate adhesion. It was established that the WC dissolution in the metal phase promotes the increase of substrate adhesion as well as strength and hardness of coating material. A procedure of spraying coatings in the reduction mode is proposed: i.e., using working gas mixtures with excess acetylene. It prevents the decarbonization of WC carbides under the action of detonation products and environment. The phase composition heterogeneity (both along with the layer thickness and along the spraying spot diameter) is established. This depends on a complex of factors that determine the intensity of heat removal from the area of layer formation. For optimizing the structure and the mechanical characteristics of the coating, we need to control decarbonization of carbide component (WC) and formation of Ni (W) solid solution at different stages of spraying. Even a minor departure from carbon content leads to either appearance of graphite or formation of the fragile phase (Co3W3C), thus strongly reducing the mechanical properties.
MODELING IN STUDYING COMPUTER GRAPHICS IN THE FUNDAMENTALIZATION OF COMPUTER SCIENCE
Authors: RAKHIMZHANOVA L. B. , ISSABAYEVA S. N. , ZHUMARTOV M. A. , NAZARBEKOVA K. T. , TURGANBAY K. E.
Published: August 2021

The aim of the study was to develop an effective method of teaching computer graphics using information models. The authors conducted a pedagogical experiment, which consisted of two stages: ascertaining and teaching. The experiment involved 30 students and teachers in computer science. At the ascertaining stage, the state of students' practical knowledge and skills in computer graphics was analyzed. The authors had the following tasks at the first stage: to develop and describe the components, evaluation criteria and development levels of the motivation for studying computer graphics; design a diagnostic complex aimed at studying the development of the main components of the motivation for studying computer graphics; to identify the features of the development of the main components and levels of motivation for studying computer graphics in traditional learning environments. The teaching stage allowed to check the effectiveness of the task system developed by the authors, as well as the author’s methodology of using information modeling in computer graphics. In order to test the accuracy of experimental learning, the authors used the method of comparing the level of mastering the educational material of students in the control and experimental classes and the probabilistic method. For this purpose, control tests were conducted, the results of which were subjected to qualitative analysis. The results of the pedagogical experiment indicated the effectiveness of the proposed method of using computer information modeling in teaching computer graphics. Also, the authors developed a set of teaching and applied research tasks.
USING POTENTIOMETRIC ACID-BASE TITRATION TO DETERMINE PKA FROM MANGOSTEEN PERICARPS EXTRACT
Authors: TANIA L. , DIAWATI C. , SETYARINI M. , KADARITNA N. , SAPUTRA A.
Published: August 2021

One of the uses of acid-base indicators is to show the end point of the titration, so the accurate determination of acidity constant and pH range of indicators needs to be done. This study aims to determine the acidity constant (pKa) of mangosteen pericarp extract and its accuracy as an indicator of acid-base titration. Determination of pKa was done by a simple potentiometric titration method. The titration data were plotted in three graphs, i.e., pH, ΔpH/ΔV (the (the first derivative), and Δ2pH/ΔV2 (the second derivative) versus titrant volume to determine the equivalence point of the titration. The accuracy test was carried out by comparing the volume of oxalic acid used to titrate NaOH solution using the indicator of mangosteen pericarp extract and phenolphthalein indicator. The result showed that the equivalence point was found on the titrant volume of 8.6 mL and a measured pH of 9.84. so the pKa value of mangosteen pericarp extract was 7.20, and the pH range was 6.20 to 8.20. the average volume of oxalic acid used to titrate 5 mL of NaOH using phenolphthalein as the indicator was 5.2 mL while the titration used mangosteen pericarp extract was 5.23 mL. The accuracy of mangosteen pericarp extract was 99.42%. By the result, it can be concluded that potentiometric titration can be used as a simple way to determine the acidity constant of mangosteen pericarp extract. Moreover, the mangosteen pericarp extract can be used as an alternative acid-base titration indicator to substitute the common acid-base titration in the laboratory.
4-METHYL HYPPURIC ACID: A CASE OF POLYMORPHISM AND SOLVATOMORPHISM
Authors: DELGADO G. , GUILLEN M. , MORA A. J.
Published: August 2021

Polymorphism is known as the ability of a solid material to exist in more than one form or crystal structure, with important applications in the preparation of active pharmaceutical ingredients. Characterization of different polymorphs of the specific metabolite of 4-xylene can contribute to the chemical and pharmaceutical industry. Polymorphism is of particular importance in industrial processes, where different physical properties of polymorphic forms can substantially alter the viability and quality of a manufactured product. This is particularly so for the design and production of drugs in the pharmaceutical industry, as varying physical properties between different polymorphs can affect shelf life and durability, solubility, as well as bioavailability and manufacturing of the drug. The crystallization, spectroscopic and X-ray diffraction characterization of two polymorph and one solvatomorph of 4-methylhippuric acid are presented. These compounds crystallizes in different crystalline
systems. Polymorph I (4mH-I) crystalize in an orthorhombic cell with space group P212121. Polymorph II (4mHII) crystallizes in a monoclinic space group P21/c. Solvatomorph (4mH-S) crystallizes in a triclinic P-1 cell. All polymorphs crystallize in neutral form. The crystal packing of the three compounds are governed by hydrogen bonds intermolecular interactions of the type N--H···O and O--H···O forming tridimensional networks.
KINETIC STUDY OF THE EFFECT OF METHYLENE BLUE ON THE DECOLORIZATION OF OTHER DYES BY FENTON PROCESSES
Authors: COSTA L. T. A. , AGUIAR A.
Published: August 2021

The textile industry can cause serious environmental impacts due to the wastewater generated in its operations involving dyes, many of which have carcinogenic and mutagenic properties. The advanced oxidative processes, especially those based on the Fenton reaction (Fe2+ + H2O2 → Fe3+ + HO- + HO●), have been highlighted as an alternative for the treatment of textile effluents. These processes are based on the generation and action of free radicals, such as the radical HO●, for the degradation of organic pollutants. As these effluents can present more than one dye, the present work evaluated the influence of Methylene Blue dye in the decolorization of other dyes by Fenton processes (Fe2+/H2O2, Fe3+/H2O2). The decolorization tests were carried out over 60 min and monitored by spectrophotometry. With basis on the decolorization data, kinetic models (zero-, first-, second-orders, BMG) were analyzed to verify if the Methylene Blue has pro- or antioxidant properties. It was found that Methylene Blue promoted an increase in the decolorization of Phenol Red and Safranin T, little influence on Methyl Orange, while the decolorization of Cromotrope 2R was diminished. In general, the kinetic model that best fit the experimental data was the 2ª order. The BMG model fitted well to Fe2+-catalyzed reactions, whereas those containing initially Fe3+ the zero- and 1st-order models also showed good adjustments. Except for Cromotrope 2R, increases in kinetic parameter values were observed due to the addition of AM mediator dye. These results demonstrate that a dye can enhance, or even decrease, the degradation of other dyes by Fenton-based processes.
CHARACTERIZATION OF TWO TYPES OF BATTERIES: ALKALINE AND ZINCMANGANES, IN ACCORDANCE WITH CONAMA RESOLUTIONS N ° 401/2008 AND N ° 430/2011
Authors: BERETTA B. M. , MELO A. R. , CAMPOS D. P. , MORONA J. , BROLESI T. M.
Published: August 2021

The batteries convert chemical energy into electrical energy and are responsible for the operation of laptops, watches, telephones, calculators, radios and cardiac pacemakers. Alkaline cells, which are known in the art as having an inorganic base, are composed of a porous zinc anode immersed in an alkaline solution of potassium hydroxide or sodium hydroxide, and of a cathode of compacted manganese dioxide. The objective of this study was to perform physical-chemical analyzes (pH, conductivity, real color and turbidity) in three different types of batteries (alkaline and two zinc manganese) and to identify the presence of certain metals such as cadmium, lead, iron , manganese, zinc and potassium through a leaching test. The composition of the cells was also quantified and qualified by means of instrumental analyzes using X-ray Diffraction (XRD) and Scanning Electron Microscope (SEM) technique. The values found were compared with the current legislation (CONAMA, Resolution 401/2008, resolution 430/2011) where it was found that the pH, turbidity, real color, iron, manganese and zinc parameters exceeded the legal limits while the values of metals cadmium and lead have met the limits proposed by the legislation. In this way, it is fundamental that there is awareness of the society and monitoring of the responsible bodies regarding the correct disposal of the batteries, avoiding future problems, since the same ones in contact with a water course, can entail in complications to the environment.
ENVIRONMENTAL QUALITY OF CAMPINA GRANDE LANDFILL BASED ON TECHNICAL AND OPERATIONAL ASPECTS
Authors: ALMEIDA Márbara Vilar de Araújo , SILVA Elisângela Maria da , GOMES Naiara Ângelo , NUNES Luís Antônio Oliveira , CURI Wilson Fadlo
Published: August 2021

Landfills have become the main environmentally sound form of final disposal of urban solid waste and when properly managed, do not cause harm or risks to public health. The objective of this work was to perform an analysis of the environmental quality of the Landfill in Campina Grande / PB, in order to verify if the landfill meets the technical standards and environmental requirements. In the analysis of the data collected were used, as reference, the standards NBR 8,419 (ABNT, 1992) and NBR 13,896 (ABNT, 1997). From the analyzed data, it was verified, that the landfill presents technical and operational conditions for the employees to work and an operability that makes possible the accomplishment of the activities in a satisfactory and environmentally safe way. Thus, the studied area is appropriate for the waste disposal activity according to NBR 8,419 (ABNT, 1992) and NBR 13,896 (ABNT, 1997). However, improvements are suggested for the internal access routes, since, because they are not paved, it may hinder the passage of trucks that discharge the waste on days of intense rain.
CHEMICAL PROFILE OF ORGANIC COMPOUNDS PRESENTED IN THE CUTTLE OF MALES AND FEMALES OF THE SPECIES Pachycoris torridus (SCOPOLI, 1772) (Hemiptera: Scutelleridae) SUBMITTED OR NOT ANESTHETIC PROCEDURE AND IN DIFFERENT TIMES
Authors: FERREIRA A. M. V , PIRES E. V. , ENDRES L. , FREGADOLLI F. L. , SANTANA A. E. G.
Published: August 2021

Pachycoris torridus (Scopoli, 1772) (Hemiptera: Scutelleridae) is the main pest of the Jatropha curcas (Linnaeus) (Euphorbiaceae) specie. The study of cuticular compounds of this pest is an alternative for understanding their intraspecific chemical communication in an attempt to develop methods to their behavioral control. This study has as objective to detect variations of the chemical profile of organic compounds contained in the cuticle of P. torridus at different times and extraction method. An adult of each genus of the P. torridus specie, with normal behavior and basic chromatic patterns, was immersed separately in a glass vial (10mL) containing 2mL of HPLC grade hexane bidestilado for 10 seconds (with/without previous anesthesia) and 10 minutes (with/without previous anesthesia), with four replications per treatment. After this time, the extract was gathered and placed in a 1.5mL vial and then in a freezer at -20°C. 1μl aliquots of the extracts (n=32) were analyzed in a gas chromatograph coupled to a mass spectrometry (GC-MS). The chemical evaluation was focused on the concentrations of the volatile compounds [(E)-2-hexenal (E)-4-(oxo)-2-hexenal, (E)-2-hexenil acetate, (E)-2-Octenal, undecane, dodecane, 1-tridecene, unknown, tridecane, (Z,Z)-2,7-octadien1-ol acetate, Tetradecane and Tetradecanal] identified in the extracts. Finally, the cuticular chemical profiles of the major compounds [(E)-2-Hexenal, Tridecane and (E)-4-(oxo)-2-Hexenal] of males and females of the P. torridus specie was the same. As to preparation of extracts protocol, it is recommended to use the immersion of the entire body of the insect at both times (10 seconds and 10 minutes) without anesthesia, in order to enlarge the
detection of compounds.
К проблеме русского заимствования в юридическом китайском языке и перевода юридических словарей
Authors: Кэюнь Доу
Published: August 2021

В процессе правовой модернизации Китая юридический перевод играл большую роль для осуществления трансплантации зарубежных законов. Процесс формирования терминологии китайского отечественного законодательства также был связан с появлением тех или иных заимствованных юридических терминов. В статье рассмотрены исторические и правовые аспекты заимствования китайским языком юридических терминов из русского языка и роль перевода юридических терминов в процессе современного правового внедрения в Китае. Такжерассматриваются несколько русских юридических словарей, опубликованных в Китае, анализируется их значение и роль в связи заимствованием терминов в процессе правовой модернизации страны.
Stilistiken
Authors: Cassirer Peter
Published: August 2021

När domaren i Wimbledon vill få tyst på publiken säger han: ”Please, Ladies and Gentlemen!” I klassrummet uttrycker läraren kanske detsamma med: ”Nej, hörni, nu får ni sannerligen vara tysta!” I ett annat sammanhang skulle samma önskan kunna formuleras: ”Håll käften, för helvete!” Det sätt på vilket ett tankeinnehåll uttrycks kallas stil. Stil är således inte bara yttre form – uttryck, språk, disposition och framställningssätt i övrigt. Stil är form sedd i relation till ett innehåll. Stilistiken är ett verktyg som gör det möjligt att förstå den språkliga verklighet vi lever i och den är ett medel för oss att bemästra den. Om vi känner till de stilistiska teknikerna att påverka kan vi å ena sidan avslöja manipulationer som vi utsätts för och å den andra själva utnyttja dessa tekniker för att själva göra vår röst hörd. Detta är sjätte utgåvan av Peter Cassirers klassiska lärobok i stilistik som kom ut första gången 1972 med titeln Stilanalys – har även haft titeln Stil, stilistik och stilanalys. Genomreviderad, uppdaterad och i helt ny form. Bokens syfte är att hjälpa läsaren att förstå hur och varför vissa stilistiska grepp har den effekt de har, och argumentationen är rikligt exemplifierad med illustrativa citat såväl ur litteraturen som ur dagspress […] Verket [erbjuder] en sammanhängande beskrivning av ämnet, förankrad i vardagen, som bjuder på ett antalintressanta aha-upplevelser. Lektör Arthur Holmer, BTJ-häfte 21.2015 Själva ordet stil kommer från latinets stylus som betecknade det spetsiga verktyg med vilket man ristade inskrifter på vax- och lertavlor (jfr stilett). I sin nuvarande betydelse, som metafor för sättet att skriva, förekommer det första gången hos Horatius, en framstående romersk poet som levde under sista århundradet f.Kr.Det primära syftet med den stilistiska utformningen är att förstärka budskapets verkan. Denna verkan främjas av att texten är tilltalande på olika sätt; ett oeftergivligt krav är att den ska vara begriplig, åskådlig och konkret. Vidare gynnas receptionen av ett korrekt, vackert, rytmiskt och medryckande språk. Avsikten med den stilistiska utformningen av en text är således att förstärka dess verkan genom att förtydliga innehållet eller budskapet och att försköna den.
The central role of IT capability to improve firm performance through lean production and supply chain practices in the COVID-19 era
Authors: Siagian Hotlan , Tarigan Zeplin Jiwa Husada
Published: August 2021

Today, global competition entails companies having an advantage in supply chain networks to pursue superior performance. This work examines the link between information technology (IT) capability with the firm performance by adopting a lean production approach, vendor-managed inventory, and supply chain practices. The study has surveyed the population of the manufacturing company in East Java, Indonesia, using a questionnaire with a five-point Likert scale. A total of 111 manufacturing companies (medium and large) were selected from 5420 manufacturing companies listed in the Industrial Department of East Java. The partial least square (PLS) technique was used to analyze the data, using the SmartPLS software version 3.3. Thirteen hypotheses in this study were developed to investigate. The result revealed that all hypotheses of direct relationship were supported. IT capability directly affects lean production, vendor managed inventory, and supply chain practices. Moreover, lean production, vendor-managed inventory, and supply chain practices improve firm performance. Further analysis also indicated that all hypotheses of indirect hypotheses were supported except hypothesis one hypothesis (H9). IT capability indirectly improves firm performance through lean production, vendor-managed inventory, and supply chain practices. The result provides insight for managers and policymakers on enhancing firm performance by improving its IT capability, adopting lean production, vendor-managed inventory, and supply chain practices. This research contributes to reinforcing the supply chain management theory.
Driving growth performance shaped by environmental uncertainty and integrative strategy: The supply chain analysis of business transformation in ICT companies
Authors: Arifiani Librita , Prabowo Harjanto , Furinto Asnan , Kosasih Wibowo
Published: August 2021

This study examines the impact of environmental uncertainty and integrative strategy on growth of firm performance through the mediating role of the Business Model Transformation (BMT) strategy of information communication technology (ICT) in Indonesia. The research data was collected from the executive management of ICT through survey research with 30 questionnaire surveys and exploratory study with seven company leaders through in-depth interviews. This study analyzes the suitability of the overall model through causal relationships using Partial Least Square-Path Modeling (PLS-PM). The results show that the BMT predominantly influences the growth of ICT companies. The BMT is predominantly built by the environmental uncertainty (ET) strategy rather than by integrative capability. Thus, companies need to improve their ability and creativity to anticipate and adapt to any uncertainty that unexpectedly results in dynamic competition.
Factors affecting renewable energy supply chain link: A case of solar power in Vietnam
Authors: Tien Do Thi Kim , Chi Nguyen Thi Kim , Duong Nguyen Duc
Published: August 2021

Solar power is a mature and fast-growing field based on single crystal silicon wafer technology. Although China, Europe and the US are the main markets, 80 percent of the modules are manufactured in Asia. In Vietnam, modules are manufactured in collaboration with Chinese and American manufacturers. In 2017, there were 5 GW of solar panels produced in Vietnam, accounting for 7% of the global market. The domestic solar market is expected to peak at around 1.8 GW/year according to the targets set out in the revised PDP 7. The domestic module production capacity, currently devoted entirely to export, is around 5.2 GW/year, three times the expected maximum capacity of the domestic market. In that context, due to the normal size of factories, only a few parts factories can sell to the domestic market, while the majority still must rely on exports. But it is important to map out a clear roadmap for 12 GW of solar power that will encourage the formation of EPC companies and other domestic service companies in Vietnam to build factories according to the plan. Construction, operation, maintenance, and production for the domestic market has the potential to increase Vietnam's GDP by about 0.25% by 2030 and create more than 25,000 jobs.
The role of green human resource management in creating green supply chain culture in a service industry
Authors: Khurosani Aan , Nupus Hayati , Ganika Gerry
Published: August 2021

This article investigates the supply chain analysis of the role of green human resource management including green behavior on the green work environment by emphasizing on the effect of direct supply chain analysis relation to green organizational culture and moderation of individual green values. This type of research is quantitative research. Primary data obtained from questionnaires distributed to 145 respondents. The collected data were analyzed using SEM-PLS (Structural Equation Model- Pear Least Square). Green organizational culture has a positive but insignificant effect on the work environment, green organizational culture has a positive and significant effect on green behavior, green behavior has a positive and significant effect on the green work environment, individual green values have a positive and significant effect on green work environments, green values individuals do not moderate the relationship between green organizational culture and green work environment, green behavior mediates the relationship between green organizational culture and green work environment. This research provides insight to leaders that to create a green work supply chain environment requires the role of green behavior as an intervening variable. However, the finding does not show the effect of individual green values as a moderating variable, so that green organizational culture can affect the green work supply chain environment. The existence of a green behavior variable that mediates the relationship between green organizational culture and green work environment is the originality of this study.
The effect of supply network and management control system on the efficiency and profitability of manufacturing companies
Authors: Riyadi Slamet , Nugroho Mulyanto , Arif Donny
Published: August 2021

This research was conducted to analyze the influence of supply networks and management control systems on manufacturing companies' efficiency and profitability in East Java, Indonesia. With increasing competition, it takes the design of a system integrated to obtain profitability of the company. The study uses a quantitative descriptive method with a survey approach using a questionnaire data collection tool. Data analysis is operated using the theory of path analysis to determine the magnitude of the value of each construct calculated in the test equipment. From the results of the tests that have been conducted, only the supply network has no significant effect on efficiency. At the same time, other variables have a close and meaningful relationship. The study concluded that only one construct of the five hypotheses had an insignificant influence on bound variables. The main finding of this study is that companies should also have sensitivity to the social environment created as part of the supply network, as it can reduce the value of the Company's profitability if not designed appropriately and accurately.
The relationships among service failure, service recovery, customer satisfaction and trust at international hospitals: A Case in Vietnam
Authors: Nguyen Quoc Nghi , Huynh Van Tung , Mai Van Nam
Published: August 2021

The objective of this study is to demonstrate the relationships among the severity of service failure, service recovery, customer satisfaction and loyalty towards the Vietnamese international hospital system. The research data were collected from 303 customers who have used services and experienced service failures at international hospitals. Applying Structural Equation Modeling, the study pointed out that service failure includes three dimensions, which are system failure, request failure, and behavior failure. Meanwhile, service recovery is made up of three dimensions which are distributive justice, procedural justice, and interactional justice. The severity of service failure positively affects service recovery and service recovery puts a powerful impact on customer satisfaction, thereby increasing their trust in international hospitals in Vietnam.
The role of relationship quality and loyalty between rice farmers and food companies in supply chain
Authors: Nguyen Quoc Nghi , Mai Van Nam
Published: August 2021

Relationship quality plays a key role in maintaining the connection among parties in a supply chain. Relationship quality promotes loyalty of the supply chain’s factors. This study applies structural equation modeling (SEM) to point out factors affecting the relationship quality and loyalty between farmers and food companies in the rice supply chain. The research data were collected by stratified sampling with a sample size of 232 farmers associating with food companies in the rice supply chain in the Mekong Delta. The four impacting factors that the study has found out include trust, perceived benefit, support policy, and payment terms. Most importantly, the study has demonstrated that relationship quality has a positive correlation with loyalty among parties in the regional rice supply chain.
The effect of supply chain management on multi-channel retaining and business performance
Authors: Setiawan Setiawan , Arif Donny , Mahmudah Siti , Agustina Heni , Martah Varid
Published: August 2021

Pandemic covid has changed the business view to be more dynamic to business performance. The policy of restricting activity also undermines business difficulties that occur, so it is necessary to find how businesses can survive wholesale. This research was conducted to determine the effect of supply chain management (SCM) on multi-channel retailing and business performance in the era of pandemic covid-19 and restrictions on community mobility. Using analysis of this research path is divided into two criteria of direct and indirect influence. This study was conducted on several wholesale shops in Indonesia with 99 respondents. The main finding of this study is that SCM can affect business performance through multi-channel retailing with three main indicators: inventory investment, inventory efficiency, and forecasting accuracy. The added value gained from this research is from the test results obtained that a good inventory management scheme and forecasting and support from many supplies and sales channels will drive business performance for the better.
Supply chain risk, integration, risk resilience and firm performance in global supply chain: Evidence from Vietnam pharmaceutical industry
Authors: Nguyen Xuan Hung , Le Tuan Anh , Nguyen Anh Tu , Pham Thi Thu Hoai , Tran Thi Ha
Published: August 2021

The goal of the article is to examine the relationship between supply chain risk, Supply chain integration, Supply chain risk resilience and Firm performance in the global supply chain of the Vietnamese pharmaceutical industry. Data was collected for 3 months with 389 satisfied pharmaceutical enterprises for analysis on Smart PLS software. The results show that Supply chain risk has a statistically significant negative impact on supply chain integration. Moreover, Supply chain Integration has a statistically significant positive impact on Supply chain risk Resilience and firm performance. Finally, we find that Firm performance is a good foundation for business operations and supply chain risk resilience. Therefore, we make recommendations to Vietnamese pharmaceutical enterprises that: Supply chain Integration is extremely necessary to ensure performance and Supply chain risk resilience in the context of the current covid-19 pandemic.