bluuebunny/crossref_metadata_2025 huggingface dataset:
Graphite Electrodes for Hydrogen Production by Acid Electrolysis
Authors: de Fátima Oliveira Marilei , Teleginski Mazur Viviane , Fernanda Virtuozo , de Souza Junior Valter Anzolin
Published: October 2020

Nowadays, humanity has become aware of the consequences that the use of fossil fuels entails, and the latest developments in the energy sector are leading to a diversification of energy resources. In this context, researching on alternative forms of producing electric energy is being conducted. At the transportation level, a possible solution for this matter may lie in hydrogen fuel cells. The electrolysis of water is one of the possible processes for hydrogen production, but the reaction to break the water molecule requires a great amount of energy and this is precisely the biggest issue involving this process. In this work, low cost electrodes of 254 stainless steel and electrolytic graphite were used for hydrogen production, allowing high efficiency and reduced oxidation during the process. The selection of these materials allows to obtain a high corrosion resistance electrolytic pair, by replacing the high cost platinum electrode usually employed in the alkaline electrolysis process. The formic acid of biomass origin was used as an electrolyte. It was observed that the developed reactor have no energy losses through heat and it was possible to obtain approximately 82% conversion efficiency in the gas production process.
Study of the Potential of Adhesion to the Substrate of Masonry and Tensile in the Flexion in Mortars of Coating with Gray of the Sewage Sludge
Authors: da Cunha Oliveira João Victor , Chagas Leila Soares Viegas Barreto , de Andrade Meira Frankslale Fabian Diniz , Carneiro Arnaldo Manoel Pereira , de Melo Neto Antônio Acácio
Published: October 2020

This work evaluates mortars using sewage sludge calcined at temperatures of 600°C and 700°C as a hydraulic binder replacing the cement. The percentages incorporated by mass to replace the Portland cement were 10%, 20% and 30%, using the 1:3:0,60 (cement: sand: factor a/c) trace. Sludge ash was characterized and tensile strength at flexion as well as tensile strength (pullout test) were evaluated. As a way of performing a comparison with conventional mortars, the same tests were carried out using reference mortar. The results of the flexural tensile strength tests indicated that results were higher than the reference traces of the mortars with the calcined sludge at a temperature of 700°C, a factor related to the increase of the calcination temperature and the incorporated percentage. With respect to the tests on the determination of tensile strength, it was observed that the specimens submitted to the test suffered rupture in the mortar, and that the calcination temperature of the sewage sludge was not influenced. The results obtained with the mortars using sewage sludge ash with partial replacement of the cement are shown within the normative standards and approximate to the results obtained with the tests executed with the reference mortar.
Novel Sustainable Composites with Geopolymeric Steel Slag and Recycled from Packing PET
Authors: Santos Eliziane Medeiros , Gomes Alaelson Vieira , Ramos Flávio James Humberto Tommasini Vieira , Monteiro Sergio Neves
Published: October 2020

The search for sustainable materials has been increasingly growing due to the world environmental impacts faced. With the improper disposal of PET packaging and the waste generated by steel making, such as slag, a composite of these materials was created in search of a sustainable product. The composite has as its matrix the polymer and its particles are geopolymeric of the steel slag. The polymer composites were manufactured with concentrations of 0%, 20%, 40% and 60% of geopolymer. The characterizations showed that they are composites with low moisture absorption and that the affinity between the matrix and the reinforcement is impaired as the amount of charge increases. It was possible to realize that composites are good materials for future studies for possible future applications, such as ballistic vests. Composites are great precursors for achieving product sustainability due to the feasibility of reusing waste and disposing of it improperly in the environment.
Addition of Ornamental Rock Residues on Ceramic Blocks: Physical and Chemical Analysis
Authors: Oliveira Michelle Souza , Filho Fabio da Costa Garcia , da Luz Fernanda Santos , Zanelato Euzébio Bernabé , Alexandre Jonas , de Azevedo Afonso Rangel Garcez , Marvila M.T. , Monteiro Sergio Neves
Published: October 2020

The incorporation of industrial waste in cementitious materials is an alternative for its adequate disposal. Among the residues that do not yet have adequate disposal are the residues created by the ornamental rock industries. In this context, this work aims to identify and characterize clays of the region where the ornamental rock industry is dominant and to verify the performance of the ceramic masses with the incorporation of the marble and granite residue. Physical and chemical characterization tests were performed on both clay and residues. After the identification of the two best clays, ceramic masses were prepared where it was possible to evaluate the performance of the clays with each of the residues in incorporations up to 20 wt.%. The results indicated that CI-A with 15 wt.% marble incorporation obtained the best performance.
AISI 310 Stainless Steel Formed by Gelcasting: An Alternative Manufacturing Method
Authors: Oliveira Louise Fernanda Rodrigues , das Neves Mauricio David Martins , Ortega Fernando dos Santos
Published: October 2020

This work evaluates the microstructure and the yield strength under compression at room temperature and at 800°C of specimens prepared with AISI 310 stainless steel powder (D50 = 10 μm), manufactured by gelcasting. Parts were vacuum sintered in a single batch at 1280°C. At room temperature, specimens presented average yield strength of 270 MPa, and at 800°C, 105 MPa. Microstructure analysis involved the measurement of grain size along the vertical axis of cylindrical specimens, with special attention to the effect of particles settling, and was conducted using scanning electron and optical microscopy, and X-ray diffraction. Settling effect was assessed considering the position where the specimen was taken and was negligible: both density and yield strength did not vary significantly along the vertical axis.
Influence of the Deep Cryogenic Treatment at the Phase Transformation Temperatures and at the Stabilization of the Cu-14Al-4Ni SMA Alloy
Authors: Nava Marcelo , de Lima Pedro Cunha , Lima Emmanuel Pacheco Rocha
Published: October 2020

Deep cryogenic treatment (DCT) is industrially applied to improve the wear resistance characteristics of tool steels. However, on non-ferrous metals, the knowledge about the obtained characteristics after DCT is limited. The purpose of this work was to investigate how DCT affects the properties and the behavior of the Cu-14Al-4Ni alloy treated at different times and after thermomechanical cycling was performed. In the present investigation, there was performed a comparative experimental analysis of the transformation temperatures, microhardness and shape recovery capacity of the alloy obtained by smelting, treated by DCT and thermomechanically cycled. The DCT provided the stabilization of the martensitic phase β'1and, consequently, the stabilization of the phase transformation temperatures and the shape recovery capacity of the shape memory effect of the alloy, increasing the alloy life.
Equal Channel Angular Pressing and Characterization of a Patented Eutectoid Fe-C Steel
Authors: Brito Yasmim Caroline , Ramos Barbara Woinarovicz , Vurobi Junior Selauco , Namur Ricardo Sanson , Cintho Osvaldo Mitsuyuki
Published: October 2020

Equal Channel Angular (ECAP) pressing has been showed as an attractive route to produce fine and ultrafine-grained metals and alloys with high strength and fracture toughness. ECAP is a simple process for applying severe plastic deformation (SPD) to metals that can be done with common laboratory equipments (mechanical tests machines) and an adequate die. In the present work, an eutectoid steel was processed by ECAP in a 120° die. Mechanical behavior of samples deformed by ECAP was compared to the same material processed by rolling. The hardness level obtained after a single pass of ECAP was comparable to an 84% reduction by rolling in a single pass. The hardness level obtained after 1 ECAP pass on a patented steel was higher than 4 ECAP passes on the same steel without patenting. The metallographic analysis showed intense alterations on the microstructure by the ECAP processing.
Study of the Corrosion of Carbon Steel (SAE 1020) Coated with Niobium Oxides
Authors: Detlinger P. , Helleis R. , Matheus A.P.C. , Utri B. , Dias B.V. , Oliszeski D.C.S. , Banczek E.P.
Published: October 2020

Carbon steel is widely used in the industry due to its mechanical properties and low cost, but in contrast it resists poorly to corrosion, leading to economic losses and mechanical issues. The use of surface treatment is essential to extend the life of the metallic material. In this context, niobium is being studied for its great corrosion resistance properties. The aim of this paper was to produce and evaluate the corrosion protection of a niobium-based coating produced by the Pechini Method. The resin was applied in the metallic surface by dip-coating and then calcinated at 450 oC for 1 hour. The coated material was analyzed electrochemically by open circuit potential and potentiodynamic polarization, and morphologically by X-ray diffraction, scanning electron microscopy and energy dispersive spectroscopy. The electrochemical analyses showed that the deposition of the coating increased the corrosion resistance and the morphological analyses indicated a homogenous coating with the presence of phases of NbO and NbO2.
Electrochemical Corrosion Behavior of Iron Aluminides in Sulfuric Acid
Authors: Brito Pedro Paiva , de Carvalho Filho Carlos Trivellato , de Andrade Oliveira Gabriela
Published: October 2020

In the present work, samples of a binary intermetallic alloy (Fe3Al) with 26at.%Al were submitted to electrochemical corrosion evaluation in a 0.5M H2SO4solution containing naturally dissolved oxygen. The corrosion resistance was evaluated by applying linear polarization, electrochemical impedance spectroscopy and potentiodynamic polarization at 22 and 35°C. The results obtained revealed that in both conditions the material exhibits active-passive behavior. Heating to 35°C did not alter the passivity characteristics of the alloy (passivation range and passive current density), but elevated the corrosion current density and the critical current density. The polarization resistance of the samples was also decreased with temperature, following the trend observed for the corrosion current density.
Study of Corrosion Behavior of Friction Surfacing AA6351 Aluminium Alloy Coating on AISI 1020 Low Carbon Steel
Authors: de Carvalho Filho Carlos Trivellato , Brito Pedro Paiva
Published: October 2020

In the present work, the friction surfacing process was applied to manufacture aluminum alloy (AA6351) coatings on low carbon steel (AISI 1020) substrates. After friction surfacing the AA6351 deposited coatings were submitted to two finishing process in order to adjust surface roughness: milling and milling followed by sanding. The corrosion behavior of the two finishing process was compared with the as-deposited condition in order to determine the influence of surface roughness on the corrosion resistance of friction surfacing coatings. The corrosion behavior was examined by electrochemical impedance spectroscopy and potentiodynamic polarization in a 3.5wt.%NaCl solution containing naturally dissolved O2. The results obtained indicated that the elevated surface roughness observed in the as-deposited condition led to relatively lower corrosion resistance in comparison, with lower values for polarization resistance and more anodic corrosion potential.
Calibration of the AC Potential Dropping System (ACPD) for Determination of Crack Growth in API 5L X65 Steel under Cathodic Protection Effect
Authors: de Oliveira Misael Souto , Silva Antonio Almeida , dos Santos Marco Antonio , Carrasco Jorge Antonio Palma , Marques João Vitor de Queiroz
Published: October 2020

In this work the calibration of an Alternative Current Potential Drop (ACPD) system was performed to monitore laboratory mechanical tests on marine environment under cathodic protection. The calibration was done on CT type specimens of API 5L X65 steel dimensioned according to ASTM E1820 standard., The crack propagation during a tensile test with displacement control in an ACPD equipment was monitored through the performs points collection by two channels: one that monitors the crack growth and another that monitors a region free of crack. Using a profile projector and graphical data processing and analysis software, the area of ​​the fracture surface of the specimen was meansured, which allowed to correlate a crack size with a corresponding value of potential drop and the calibration curve. In order to verify verify the efficacy and precision of the technique, step loading tests were performed on API 5L X65 steel test specimens, submerged in synthetic sea water under the overprotection potential of-1300mVAg/AgCl. The results of the calibration showed few dispersed errors, and the main factors of this dispersion may be related to the geometry of the specimen and with variations in current flow density, which is influenced by corners and edges and by the presence of pick-up inductive. The calibration and its effectiveness can be verified through the results of the tests in marine environment, presenting crack lengths close to the actual values, confirming the effectiveness of the ACPD technique.
The Influence of Temperature on the Tribological Properties of the Ti6Al4V Alloy Treated by Plasma Oxidation
Authors: Siqueira Rafael Coelho , de Almeida Larissa Solano , Manfrinato Marcos Dorigão , Moreto Jéferson Aparecido , Rossino Luciana Sgarbi
Published: October 2020

The purpose of the plasma oxidation process is to increase the hardness, corrosion resistance and to improve the biocompatibility properties of Ti6Al4V alloys by thickening the natural oxide in the material, which is produced by this treatment. The aim of this work is to verify the effect of temperature on the thickness, hardness and wear resistance of the Ti6Al4V alloy treated with plasma oxidation. The treatment was performed using a Pulsed DC vacuum reactor, with a gas ratio of 60% Ar and 40% O2and 1.65 torr pressure for 1 hour of treatment, at temperatures of 480°C, 520°C, 670°C and 705°C. In regards to the multilayer formation of anatase and rutile, it was observed that the layer thickness increased as the treatment temperature increased. The increase of surface hardness provided by the treatment caused a considerable increase in the wear resistance of the studied material. The greatest layer thickness and surface hardness were obtained for the material treated at 705°C, but the lowest wear volume was obtained for the material treated at 520°C.
Analysis of the Pullout Testing of Straight and Angled Abutments in Narrow Diameter Implants
Authors: Micelli Ana Lígia Piza , Nigro Frederico , Mucsi Cristiano Stefano , Cavalieri Maicon , Aranha Luís Cláudio , Rossi Jesualdo Luiz
Published: October 2020

Despite the success of osseointegrated implants, some biomechanical problems such as loosening or fracture of the abutment, crown fixation screw loosening and prosthetic instability, are common problems reported in the literature. Thus, the objective of the present study was to analyze the pullout resistance of straight and angled abutments in narrow diameter implants installed by means of friction. The specimen was composed of an implant of 3.3 mm x 11 mm fixed 2 mm above of a resin block. The abutments were fixed by friction receiving 3, 5 and 7 strikes of 0.05 J along the implant axis, and were positioned with 0 ̊, 10 ̊ and 20 ̊ of angulation. The abutments were subjected to pullout load, totalizing 10 repetitions for each test, i.e., the abutment was reinserted up to 10 times in the same implant. The results showed higher values of pullout load for the abutments with 7 strikes, and no statistical difference with 5 strikes suggesting better mechanical stability.
Production and Characterization of the Ti-12Mo-30Nb Alloy
Authors: Schettini Yuri Salum , Borborema Sinara Gabriel , Cossu Caio Marcello Felbinger Azevedo , Nunes Carlos Angelo , de Almeida Luiz Henrique
Published: October 2020

With the increasing quality of life, the growing advancement of medicine and thus greater longevity of the population, the need for the development of biomaterials becomes increasingly necessary. Titanium alloys are widely used for biomedical application because they have corrosion resistance, biocompatibility, high hardness and low elasticity modulus compared to other metallic biomaterials. In the market, the titanium alloy most used for orthopedic purposes is the Ti-6Al-4V that despite its good mechanical and structural properties, present cytotoxic elements related to the presence of Al and V, pointing out the need for the development of new materials. In the current scenario, the most outstanding alloys are β Titanium alloys, which stand out due to their low elasticity modulus, which allows a high hardness/modulus ratio. Therefore, the objective of this work was to develop new studies on the Ti-12Mo-30Nb alloy, looking for good mechanical and structural characteristics and not cytotoxicity. Therefore, this alloy was produced by arc fusion with non-consumable tungsten electrode in an argon inert atmosphere. The material was characterized by X-ray Diffraction, Scanning Electron Microscopy, Vickers Hardness and Ultrasonic Elasticity Module. According to the results, it was verified that the alloy presented only the phase β in the microstructure and a hardness/modulus ratio superior to commercial alloy.
Elastic Wave Propagation in a Bio-Inspired Phononic Crystal
Authors: Cantanhêde H.V. , Miranda Jr. E.J.P. , dos Santos J.M.C.
Published: October 2020

The wave propagation in a two-dimensional bio-inspired phononic crystal (PC) is analysed. When composite materials and structures consist of two or more different materials periodically, there will be stop band characteristic, in which there are no mechanical propagating waves. These periodic structures are known as PCs. PCs have shown an excellent potential in many disciplines of science and technology in the last decade. They have generated lots of interests due to their ability to manipulate mechanical waves like sound waves and thermal properties which are not available in nature. The physical properties of PCs are not essentially determined by chemical elements and bonds in the materials, but rather on the internal specific structures. Structures of this type have the ability to inhibit the propagation of vibrational energy over certain ranges of frequencies forming band gaps. The main purpose of this study is to investigate the band structure and especially the location and width of band gaps. For this analysis, it is used the finite element method (FEM) and plane wave expansion (PWE). The results are shown in the form of band structure and wave modes. Band structures calculated by FEM and PWE present good agreement. We suggest that the bio-inspired PC considered should be feasible for elastic vibration control.
ACTIVIN RECEPTOR LIGAND FOR THR TREATMENT OF BETA-THALASSEMIA: a SERENDIPITOUS DISCOVERY
Authors: Motta Irene , Brancaleoni Valentina , Nava Isabella , Delbini Paola , Duca Lorena
Published: October 2020

b-thalassemia is a hereditary disorder caused by defective production of b-globin chains of hemoglobin (Hb) that leads to an increased a/b globins ratio with subsequent free a-globins. Alpha globin excess causes oxidative stress, RBCs membrane damage, premature death of late-stage erythroid precursors, resulting in ineffective erythropoiesis.

The transforming growth factor b (TGF-b) superfamily signaling acts on biological processes, such as cell quiescence, apoptosis, proliferation, differentiation, and migration, and also plays an important role in the regulation of hematopoiesis. This pathway can lose its physiologic regulation in pathologic conditions, leading to anemia and ineffective erythropoiesis. Activin receptor ligand trap molecules such as Sotatercept and Luspatercept downregulate the TGF-b pathway by inhibiting the Smad2/3 cascade, thus alleviating anemia in patients with b-thalassemia and myelodysplastic syndromes.

In this review, we describe in extenso the TGF-b pathway, as well as the molecular and biological basis of activin receptors ligand traps, focusing on their role in various b-thalassemia experimental models. The most recent results from clinical trials on sotatercept and luspatercept will also be reviewed.
ALLOGENEIC HEMATOPOIETIC STEM CELL TRANSPLANTATION FOR ACUTE MYELOID LEUKEMIA OF THE ELDERLY: REVIEW OF THE LITERATURE AND PERSPECTIVES.
Authors: Magliano Gabriele , Bacigalupo Andrea
Published: October 2020

Acute myeloid leukemia (AML) in adults older than 60 years old has a poor prognosis. Elderly patients often present with comorbidities and an adverse biology of the disease, with higher genetic risk and chemoresistance.  Allogeneic hematopoietic stem cell transplantation (HSCT) can be an effective treatment, and can improve overall survival (OS).Intensive chemotherapy (IC) before HSCT and  myeloablative conditioning regimens can produce significant toxicity and transplant-related mortality (TRM). Reduced-intensity conditioning (RIC) or non-myeloablative (NMA) regimens appear to preserve the graft-versus-leukemia effect, and may improve survival. The increasing knowledge in  AML of the elderly  is  currently being associated with  a multidimensional approach to identify those patients eligible for targeted therapy, such as Flt3 inhibitors, and/or allogeneic HSCT.
SOX13 gene downregulation in peripheral blood mononuclear cells of patients with Klinefelter syndrome
Authors: Cannarella Rossella , Salemi Michele , Condorelli Rosita A , Cimino Laura , Giurato Giorgio , Marchese Giovanna , Cordella Angela , Romano Corrado , La Vignera Sandro , Calogero Aldo E
Published: October 2020

Klinefelter syndrome (KS) is the most common sex chromosome disorder in men. It is characterized by germ cell loss and other variable clinical features, including autoimmunity. The sex-determining region of Y (SRY)-box 13 (Sox13) gene is expressed in mouse spermatogonia. In addition, it has been identified as islet cell autoantigen 12 (ICA12), which is involved in the pathogenesis of autoimmune diseases, including type 1 diabetes mellitus (DM) and primary biliary cirrhosis. Sox13 expression has never been investigated in patients with KS. In this age-matched, case–control study performed on ten patients with KS and ten controls, we found that SOX13 is significantly downregulated in peripheral blood mononuclear cells of patients with KS compared to controls. This finding might be consistent with the germ cell loss typical of patients with KS. However, the role of SoX13 in the pathogenesis of germ cell loss and humoral autoimmunity in patients with KS deserves to be further explored.
Photo-Pollution Disrupts Reproductive Homeostasis in Female Rats
Authors: Adeniyi Mayowa J. , Agoreyo Freddy O. , Olorunnisola Oluwafisayo L. , Olaniyan Olugbemi T. , Seriki Samuel A. , Ozolua Phebean O. , Odetola Amos A.
Published: October 2020

Although selenium is known to be essential for reproductive function, studies have indicated the adverse effect with its prolonged use. The present study investigated the duration-related effect of selenium administrations on reproductive hormones and estrous cycle indices in adult female Wistar rats exposed to a model of light pollution using altered photoperiod (AP). Ninety-six cyclic female Wistar rats displaying 4–5 days' estrous cycle length (ECL) and weighing 148–152 g were randomly divided into short and long experimental cohorts consisting of six groups each and spanning for 1 and 8 weeks, respectively. Each consisted of control, high selenium dose (HSE), low selenium dose (LSE), AP, AP + HSE, and AP + LSE. The rats were orally administered high dose (150 μg/kg) and low dose (100 μg/kg) of sodium selenite once per day. The estrous cycle indices were monitored. Plasma levels of follicle-stimulating hormone, luteinizing hormone (LH), estradiol (E), progesterone (P), prolactin, E/P ratio, and histology of ovary and uterine horn were evaluated. The statistical analysis was performed using Statistical Package for the Social Sciences. In AP rats, HSE and LSE caused no significant effect on LH, E, P, and E/P ratio, ECL, estrus interval (EI), and estrous cycle ratio (ECR). The effect of HSE and LSE on LH, E, P, E/P ratio, and ECL showed no duration-dependent increase, but there was a duration-dependent increase in EI and ECR at low dose. The study indicated that administration of HSE of selenium improved reproductive function in photo-pollution-exposed rats irrespective of the duration of treatment.
A Comprehensive Review on Animal Feed, Human Food and Industrial Application of Lanternfishes; from Prototypes to Products
Authors: Shaviklo Amir Reza
Published: October 2020

Fishes of the family Myctophidae, commonly known as lanternfishes or myctophids, are a group of fishes with over 400 species. They are part of a large, underutilized biomass of mesopelagic fish species. Myctophids reserves in the world's oceans have been estimated at 550- 600 million tons. The largest lanternfishes reserves exist in the Arabian Sea and the Southern Ocean. Only a few myctophids species being edible (<10 species). They are a good source of proteins, amino acids, lipids, fatty acids, and minerals, which can be utilized in different industries. This review reports the prototypes and products made from myctophids and their properties based on published documents. Furthermore, distribution, biomass estimation, and fishing of myctophids and post-harvest changes and physicochemical properties of myctophids flesh are underlined. Challenges for further development of the myctophids industry and quality management of handling and processing of this resource are also addressed.
Optimalisasi Tingkat Kevakuman Pada Fresh Water Generator di MV. Glovis Daylight
Authors: Zumrotun Irma Fasadal Walid , Widiatmaka Pambudi
Published: October 2020

A freshwater generator is one of the auxiliary machines onboard which functions to convert seawater into freshwater by distilling it in a vacuum. Fresh water on the ship is very important for crew accommodation and also for the smooth work of machinery on ships that use freshwater for cooling media or for other purposes. The working principle of a freshwater generator is to separate the salt content in seawater by evaporating it in a vacuum so that the boiling point decreases and the water can evaporate below a temperature of 100oC. Problems and disturbances in the freshwater generator will affect the amount of freshwater production, therefore the condition of the auxiliary machine must be maintained. In this study, the authors used the fishbone analysis method to describe the factors that caused the vacuum that was not optimal and to find out the causes, impacts, and efforts made to overcome these problems. Based on the results of research that the author has done in MV. During the practice, Glovis Daylight concluded that the inadequate vacuum in the freshwater generator was caused by low ejector pump pressure, broken mechanical seal on the ejector pump, dirty strainer, and crust on the condenser and evaporator plates. The resulting impact is that the resulting freshwater production will decrease. Efforts to overcome this require routine maintenance according to the manual book, replacement of mechanical seals, cleaning strainer, and descaling of the condenser and evaporator plates.
Pedoman Menentukan Daerah Cuaca Buruk Bagi Para Nahkoda
Authors: Chaeran Mochamad , Harcici Harcici
Published: October 2020

Current weather conditions undergo a very significant change, given that it does not rule out the possibility that there are still many captains often trapped in bad weather areas even though the navigation system is quite adequate, this is due to the fact that there are still many captains not paying attention to weather news in the form of weather charts that show bad weather areas and sunny weather areas. For this reason the captain needs to learn, knowing the symbols of bad weather areas is expected to not get stuck in sailing in bad weather areas.
Pengaruh Pelatihan Dan Motivasi Terhadap Kinerja Pengajar Melalui Mediasi Kompetensi
Authors: Hendiawan Asep
Published: October 2020

This Research aim to to test and analyse training influence to instructor interest  in Politeknik Ilmu Pelayaran Semarang. To test and analyse influence motivate to instructor interest of  Politeknik Ilmu Pelayaran Semarang. To test and analyse training influence to instructor performance in Politeknik Ilmu Pelayaran Semarang. To test and analyse influence motivate to instructor performance in Politeknik Ilmu Pelayaran Semarang. To test and analyse interest influence to instructor performance of Politeknik Ilmu Pelayaran Semarang. Population in this research is instructor of Politeknik Ilmu Pelayaran Semarang amounting to 106 people. Intake of sample use census technique that is all population made as sample so that the amount of sample counted 106 people. As for data obtained with kuesioner with data analysis use linear regression. Pursuant to research which have been done by hence can be obtained by the following conclusion of Training have an effect on to interest. Motivation have an effect on to interest. Training have an effect on to instructor performance. Motivation have an effect on to instructor performance. Interest have an effect on to instructor performance. Interest do not training influence mediation to instructor performance. Interest do not influence mediation motivate to instructor performance
A Time For Transformative Partnerships: How Multistakeholder Partnerships Can Accelerate the UN Sustainable Development Goals
Authors: Li Serena , Gray Erin , Dennis Maggie
Published: October 2020

As a global community of nations and some 8 billion people, we share in the desire to achieve the 2030 United Nations Sustainable Development Goals (SDGs). Goals that call for no poverty, zero hunger, good health and well-being, quality education, gender equality, reduced inequality, and climate action, among others. The last of the 17 goals is sustainable development through partnerships--the topic of this report. This report provides a valuable roadmap to help governments, businesses, and civil society organizations (CSOs) assess their role in multistakeholder partnerships and how these partnerships can contribute to transformative change and progress on the SDGs. It reveals four key success factors for transformative partnerships and details how partnerships with transformative ambitions can maximize their effectiveness to accelerate SDG action. This report is in collaboration with Partnering for Green Growth and the Global Goals 2030 (P4G), the Global Green Growth Institute, and the World Economic Forum.
FORMALIZING THE ASSESSMENT OF VISUAL PERCEPTION OF THE LAYOUT OF AN ADVERTISING AND INFORMATIONAL MESSAGE
Authors: Rassadina Svetlana P.
Published: October 2020

The article analyzes the principles underlying the visual perception of information and advertising design. Subjective and objective factors that affect such perception are highlighted. A classification of information design objects by speed of information perception is proposed. Indicators are identified based on which criteria for evaluating the composition and effectiveness of advertisement information layout have been developed, which are information recognition and ordering. An algorithm is suggested for evaluating the composition and effectiveness of informational message layout depending on expected perceptual speed. It is expected that the layout evaluation algorithms and principles developed will enable comparative assessment of layouts with various arrangements of elements to be performed.
IDENTIFICATION OF DESIGN IN ARCHITECTURE: CONCEPTUAL FRAMEWORK, ESSENCE AND FOUNDATIONS OF DEVELOPMENT
Authors: Ziyatdinov Zufar Z. , Churlyaev Boris A.
Published: October 2020

‘Design in architecture’ is defined as a notion in the Russian language. Two points of view on design in architecture are summarized. Variations of design in architecture are presented. Architecture and design in architecture are shown to be essentially different. Four groups of characteristics are considered: the scientific and methodological framework, professional mindset, subject-specific formal aspects, and socio-cultural essentials. The emergence of the professional term "design" is traced back. The powers, prerogatives, remits, applications and domains of design as part of architecture in the first quarter of the 21st century are clearly outlined. The origins of architectural design are defined and contradictions between design and architecture are shown. The period and main purpose of design in architecture and the specifics of form-making in design relative to architecture are revealed. The problem of extra-contextual inclusion of design objects into historical urban environments is highlighted.
COMFORTABLE URBAN ENVIRONMENT CONCEPT AS A MEANS OF IDENTITY REVEALING
Authors: Vitiuk Ekaterina Yu. , Zagrebin Oleg V. , Popugayev Alexander A.
Published: October 2020

Development of improvement projects is discussed focusing on the identity of the site and relationship between architectural forms used in public space improvement and socio-cultural heritage of the site for which the improvement project proposal is developed, with special reference to the cities and towns of Sverdlovsk region. We also propose an algorithm for developing an idea and conceptual design for improvement projects the purpose of which is not only to harmonize spaces but also to preserve and accurately translate cultural meanings and subtexts through objects and visual images.
COVID-19 causes more mortality of men than women, why and how? Scientists view
Authors: Ahmed MSA Mansur
Published: October 2020

As of August 6, 2020, 15;46 GMT COVID -19 cases were 19,062,200 and deaths were 712,741(1). Since the inception of Covid-19, countries around the world are reporting the mortality rate of COVID-19 is significantly higher in men than it is in women. In almost all countries where data is available, it appears men are dying at a higher rate once infected with COVID-19 (2). Research suggests that mast cells in women are able to initiate a more active immune response, which may help them fight infectious diseases better than men. Initial reports from China revealed the early evidence of increased male mortality associated with COVID. According to the Global Health 50/50 research initiative, nearly every country is now reporting significantly higher COVID-19-related mortality rates in males than in females as of June 4 (3). As regards sex of the first deaths reported by the China National Health Commission (NHC) a review was done. The NHC reported the details of the first 17 deaths up to 24 pm on January 22, 2020. The deaths included 13 males and 4 females (4). According to the WHO Situation Report no. 7 issued on Jan. 27,71% of cases were male. (5)
Early initiation of breast feeding and its associated factors among 0-23 months children in Haldwani, District Nainital
Authors: Kanubhai Thakkar Hemaben , Maroof Mohd , Gaihemlung Pamei , Maneesh Bhatt , Kumari Preeti
Published: October 2020

Introduction: Breastfeeding benefits both the mother and infant. It contains all the essential nutrients in an adequate amount that fulfils the infant first six month’s needs. Early initiation of breastfeeding is necessary to ensure consumption of colostrum having multiple protective factors. Aim and Objectives: To estimate the prevalence of early initiation of breast feeding and to determine its associated factors among 0- 23 months children. Methodology: A community-based cross- sectional study was carried out among 339 children aged 0-23 months in field practice areas of Rural & Urban Health Training Centres (RHTC & UHTC), Department of Community Medicine, Govt. Medical College, Haldwani, District Nainital for a period of 6 months using simple random sampling. Questions related to Early initiation of breast feeding and its associated factors were asked through Epicollect software. Wald’s statistics, Chi- square test, Fisher’s exact test were applied. P value of less than 0.05 was considered as significant. Results: The prevalence of Early Initiation of Breastfeeding was 45.1% (95% CI= 39.9%-50.5%) which was significantly associated with place of delivery, mode of delivery, mother’s education & ANC care. Conclusion: Early Initiation of Breastfeeding practice was found in almost half of children which were significantly associated with various factors highlighting the importance of addressing these factors to improve Early Initiation of Breastfeeding practices.
Substance use among young adults in professional degree colleges of urban Bengaluru
Authors: Ramesh Masthi Nugehally Raju , Ravi Manasa Avverahally
Published: October 2020

Background: Substance use is a significant problem in our societies and is increasing day by day due to factors like easy availability, rapid socioeconomic changes, etc. The professional degree students are at risk as they are exposed to high levels of stress and competition. Aim & Objective: To find out the burden of substance use among young adults in professional degree colleges, to assess the effect of substance use on health among study subjects, to compare the health status between substance users and non-users. Settings and Design: This cross-sectional study was conducted among students studying in various professional degree colleges of Urban Bengaluru between July 2017 to December 2017. Methods and Material: A total of 1400 study subjects were included and administered a pre-tested, semi structured questionnaire and relevant information was obtained using Alcohol, Smoking and Substance Involvement Screening Test (WHO ASSIST) V3.0 scale. Statistical analysis used: Data was entered using MS Excel 2016 and was analysed in Stata 12.1 (Stata Corp, Texas, USA). Z test for proportions, Univariate logistic regression and Multivariate logistic regression were used as appropriate. Results: The overall prevalence of substance use was 35%. Dizziness was the most common health symptoms observed in substance users. Male, students staying in hostels/ paying guest, foreign nationals, substance use in the family and presence of conflict were found to be significant risk factors for substance use. Conclusions: The burden of substance use was observed in about one third of the subjects. Substance use was significantly associated with health problems.
Impact of Lockdown 1.0-4.0 on spread of COVID-19 Pandemic in India
Authors: Ranjan Alok , Ayub Arshad , Kumar Abhishek , Pandey Sanjay , Kumar Pragya , Agarwal Neeraj
Published: October 2020

Novel Coronavirus Outbreak (COVID-19) was declared as a pandemic on 11th March 2020 by World Health Organization (WHO). This was a call for immediate action to be taken on by all countries in terms of stepping up treatment, detection, and reduction of transmission. A total of 26472012 confirmed cases with over 873229 deaths were reported as on 4th September 2020 worldwide. (1)

Government of India, initiated various Non-Pharmaceutical Intervention (NPI) to break the chain of transmission and prevent the spread of COVID-19, which included social distancing, and restricted public mobility like lockdown.

The largest COVID-19 national lockdown in India started on 25th march 2020. Still, India’s population of 1·3 billion across diverse states, health inequalities, widening economic and social disparities, and distinct cultural values present unique challenges.(2) Meanwhile nationwide lockdown was extended till 31st  may 2020 by Ministry of Home Affairs, Government of India (Lockdown 4.0).(3) This lockdown strategy adopted by the country to curtail the impact and flatten/delay the peak of the COVID-19 pandemic, and it’s quantification may aid to plan future intervention strategies
Economic and Social Benefits of Growing Peanut Instead of Boro Rice in a Sweet Water Scarce Area of Coastal Bangladesh
Authors: Jahan Hasneen , Mahanta Sisir , Farid Kazi Shek
Published: October 2020

This study assessed the relative profitability and social impact of peanut cultivation over Boro rice production in a polder of coastal Bangladesh where there is a scarcity of sweet water for crop cultivation in the Rabi season. Sixty samples from a village namely Sekendarkhali of Amtali Upazila under Barguna district were randomly selected for the study. Data were collected through face-to-face interviews, focus group discussion, and key informant interviews, and different quantitative and qualitative methods were used to explain the data. Cost and return analysis was performed to assess the relative profitability of the two crops. Major findings of the study show that per hectare total costs, gross return, gross margin, and net returns for peanut and Boro production were Tk. 116170 and Tk. 91632;  Tk. 132648 and Tk. 52419; Tk. 28540 and Tk. -27628; and Tk. 16478 and Tk. -39203, respectively, which indicate that peanut was more profitable than Boro rice. Moreover, benefit-cost ratios (BCR) of peanut and Boro rice production were found 1.14 and 0.57, respectively indicating peanut production is profitable for farmers in the study area but not the Boro rice production. It was also found that peanut cultivation has some positive social impacts. Adoption of peanut cultivation as a Rabi crop increases the cropping intensity of the study area, creates employment opportunities for both men and women, helps to ensure better nutritional status and better health of the farmers, helps the farmers to stay in the village and to build a better social relationship, increases the income of the farmers, and ensures a better standard of living. The study also identified some problems and constraints faced by the peanut growing farmers and suggested some recommendations to improve the present production of peanuts so that adoption and per hectare yield of peanut would possibly be increased.
Antibacterial Effect of Silver Nanoparticles on Klebsiella spp
Authors: Estevam da Silva Gislanne Stéphanne , Bezerra Cabral Rivaldo Leon , Sena Pereira Nathalie de , Oliveira do Nascimento José Heriberto , G kramer Dany
Published: October 2020

Silver nanoparticles (AgNP) can be incorporated into medical devices, such as tissues, to circumvent bacterial resistance such as Klebsiella spp, which can lead to skin and mucosal infections. Thus, the aim of the present study was to synthesize silver nanoparticles for later incorporation into cotton fabrics and in vitro tests against Klebsiella spp. The AgNP colloidal solution was synthesized (AgNO3 - 0.1 mM, 100 mM trisodium citrate, polyvinylpyrrolidone - 0.24 g, H2OH2) and then impregnated into the cotton fabric pretreated with poly diallyl dimethylammonium chloride (PDDA) of 100/500 tissue, shaken for 30 minutes). The material produced was analyzed by the FTIR; DLS and reflectance spectroscopy. The tests of the antimicrobial activities were by the microdilution technique against Klebsiella spp, in tubes containing Brain Heart Infusion (BHI), with the solution of silver (1); Tissue containing AgNP - 4 mm (2); Negative control (3) and positive control - ceftriaxone (4). Regarding MIC, the inhibitory activity occurred of the dilutions between 1/2 and 1/16. The AgNP particles had an average size of 24.75 nm. As synthesized AgNPs demonstrate the excellent antimicrobial activity against Klebsiella spp, with special emphasis on applications in nanotechnology and nanomedicine, targeting multiresistant antibiotic bacteria.
Effects of structured exercise regime on lipid profile and renal function tests in gestational diabetes mellitus patients-A pilot study
Authors: Wardah Ajaz Qazi  , Muhammad Naveed Babur  , Arshad Nawaz Malik  , Nadia Ahmed Bokhari  , Mirza Shamim Baig  , Ruqia Begum
Published: October 2020

Abstract

Objectives: To determine the effects of structured exercise regime on biochemical markers of patients of gestational diabetes mellitus during the third trimester.

Methods: The two-arm pilot study was conducted at the Fauji Foundation Hospital, Rawalpindi, Pakistan, from March to July 2019, and comprised women aged 20-40 years with gestational age >20 weeks who were diagnosed with gestational diabetes mellitus and who were able to do 6min walk test under severity level on the 0-10 Borg scale. The subjects were randomized into two groups using the sealed envelope method. The intervention group received 5 weeks of structured exercise programme. including aerobics, stabilisation and pelvic floor muscle training, while the control group only received postural education. Data was noted at baseline and after intervention, and was analysed using SPSS 20.

Results: Of the 16 subjects, there were 8(50%) in each of the two groups. The mean age was 31.5±4.17 years in the interventional group and it was 35.0±6.30 years in the control group. Serum low-density lipoprotein and serum creatinine showed significant differences between the groups (p<0.05), while the rest of markers were non-significant (p>0.05).

Conclusion: Structured exercise regime was found to have a positive effect in reducing serum low-density lipoprotein and serum creatinine levels in gestational diabetes mellitus during the third trimester.

Key Words: Gestational diabetes mellitus, Lipid profile, Renal function tests, Structured exercise regime, Third trimester.
GRAMATICALIZAÇÃO DE GERAL NO PORTUGUÊS BRASILEIRO
Authors: Lima e Silva Luis Filipe , Coelho Sueli Maria
Published: October 2020

A gramaticalização é um processo que desenvolve formas gramaticais a partir de formas lexicais e formas ainda mais gramaticais a partir de formas já gramaticais (KURYŁOWICZ, 1975[1965]; HOPPER; TRAUGOTT, 2003; HEINE; KUTEVA, 2005, entre outros). Este trabalho descreve o processo de gramaticalização pelo qual está passando o adjetivo geral na língua portuguesa. A partir da análise de dados extraídos do Corpus do Português (DAVIES; FERREIRA, 2006) e da rede social Twitter, propõe-se que esse adjetivo é empregado com valor adverbial em alguns contextos nos quais determina o verbo e como um quantificador universal em contextos nos quais satura o predicador verbal, seja na posição de sujeito seja na de objeto. As evidências que atestam o processo de gramaticalização deste adjetivo incluem (i) a extensão, pois ele passa a ocorrer em ambientes onde anteriormente não ocorria; (ii) a dessemantização, já que ele passa a veicular um sentido gramatical, sobretudo em seu uso como quantificador, equivalendo ao sentido do pronome indefinido todos; e (iii) a descategorização, uma vez que, em contextos onde é usado em sua forma gramaticalizada, perde a propriedade de se flexionar em número. O cline de gramaticalização proposto segue a direção de adjetivo > substantivo > advérbio > pronome indefinido/quantificador.