bluuebunny/crossref_metadata_2025 huggingface dataset:
Percepção do aluno à proposta de Transferência de Tecnologia de Processamento Mínimo de Hortaliças
Authors: Paiva Gilmar Borges de , Porte Luciana Helena Maia , Porte Alexandre , Carvalho Edione Teixeira de , Mello Geison Jader
Published: May 2019

O objetivo desta pesquisa foi identificar a percepção dos alunos do curso Técnico em Agropecuária, do Instituto Federal de Educação, Ciência e Tecnologia de Mato Grosso, Campus Campo Novo do Parecis (IFMT), sobre a transferência de tecnologia de processamento mínimo de alimentos para o pequeno produtor rural. Como procedimentos metodológicos, foram utilizados: entrevista com roteiro estruturado; visita técnica a uma pequena propriedade rural, e intervenção através de aula teórica dialogada sobre Alimentos Minimamente Processados (AMP) e Transferência de Tecnologia (TT). O presente estudo estimulou os alunos a desenvolverem senso crítico por meio de contato com o pequeno produtor rural, os quais consideraram importante para sua formação profissional. A metodologia utilizada (aula teórica sobre AMP e TT, bem como a Visita Técnica a um pequeno produtor rural) contribuiu com o ensino aprendizagem de 90,48% dos alunos amostrados. As concepções dos alunos, mediante seus relatos remetem para as vantagens dos AMP para o consumidor, no tocante à praticidade, podendo estar relacionado à aula teórica proferida pelo pesquisador.
Uso de estudo de texto e GV/GO como estratégias de ensino de Radioatividade
Authors: Saldanha Gabriela Clemente Brito , Guerra Marcelo Henrique Freitas Saraiva , Firmino Eduardo da Silva , Vasconcelos Ana Karine Portela , Sampaio Caroline de Goes
Published: May 2019

Diversas tendências pedagógicas tem ganhado destaque no ambiente escolar, sobretudo as estratégias de ensino, que visam uma efetivação de metodologia voltada para discentes na realização de construções mentais variadas no processo de aprendizagem. O objetivo deste estudo é avaliar a aplicabilidade das estratégias “Estudo de Texto” e “GV/GO” em sala de aula a partir do tema Radioatividade, levando-se em conta as abordagens de ensino discutidas em uma disciplina de mestrado e assim, gerar reflexões acerca das práticas de ensino e aprendizagem. Este estudo trata-se de uma pesquisa de campo de cunho qualitativo aplicado com mestrandos em ensino de ciências e matemática, onde pretendeu-se colher informações descritivas através de gravação das falas dos participantes. Percebeu-se que o uso das técnicas de ensino “Estudo de texto” e “GV/GO” serviram de base para o entendimento e reflexão do conteúdo apresentado, possibilitando a cogitação do uso dessas técnicas pelas diferentes áreas do conhecimento (Matemática, Bilogia, Física e Química) de acordo com a área dos participantes dessa pesquisa.
A negação da identidade do trabalho como princípio educativo: um olhar profundo sobre o sentido histórico do trabalho diante da política do capital
Authors: Rosa Alcemir Horácio , Aquino Francisco José Alves de
Published: May 2019

O trabalho é algo inerente ao homem, e, historicamente, fundamental para o desenvolvimento e para a sobrevivência humana. Sobretudo; além da sobrevivência, o trabalho é algo naturalmente produtor e agregador de conhecimento e de saber. E é neste sentido que o trabalho ganhou uma identidade educativa. No entanto, essa identidade educativa do trabalho está sendo reestruturada diante das mudanças advindas das inovações tecnológicas, globalização, internacionalização do capital e de como a sociedade vem se construindo e se modificando para atender as exigências de crescimento do capitalismo. A presente pesquisa tem como objetivo desencadear uma compreensão e revelar como o capitalismo vem se reestruturando e causando intensas modificações na estrutura do trabalho, sobretudo, em sua essência e sua identidade educativa. Este estudo desenvolveu-se através de levantamento bibliográfico, constituído em caráter qualitativo, através da bibliografia de alguns autores importantes para a temática como Saviani (2007), Engels (2013), Taddei (2014) e Antunes (2007). Conclui-se que o trabalho vem adquirindo uma identidade cada vez mais alienada; adquirindo um sentido reducionista e pobre que se resume em forma de emprego, de funções e exercícios profissionais. Passo a passo o trabalho vem perdendo seu sentido e identidade.  E assim causando uma verdadeira negação do trabalho enquanto atividade criativa e inerente ao ser.
Muscle Activation During Gravity-Independent Resistance Exercise Compared to Common Exercises
Authors: Alkner Björn A. , Bring Daniel K.-I.
Published: May 2019

INTRODUCTION: The aim was to study quadriceps muscle activation during resistance exercise using a flywheel device, developed as a gravity-independent resistance exercise device to be used during spaceflight, compared with traditional strength training exercises.METHODS:
Eight healthy men experienced in resistance exercise performed the following exercises in random order: flywheel leg press (FW), knee extension isokinetic dynamometry (ID), barbell front squat (FS), weight stack leg press (LP), and weight stack knee extension (KE). They accomplished eight
repetitions of coupled concentric and eccentric actions with simultaneous recordings of surface electromyography (EMG) from the three superficial quadriceps muscles and knee angles using electrogoniometry. Maximal voluntary contraction (MVC) in knee extension was performed before and after
these measurements.RESULTS: EMG averaged across muscles and angles and normalized to MVC was 99/76% in FW, 48/41% FS, 65/47% LP, 81/52% KE, and 93/84% ID in concentric/eccentric phases, respectively. FW and ID showed higher mean EMG activity than LP and FS concentrically and higher
than all other exercises eccentrically. No difference in activity between FW and ID was found. Pre- and post-MVC torque was comparable.DISCUSSION: Quadriceps muscle activation was superior in FW and ID exercises compared to the other exercises. The difference was most pronounced
in the eccentric phase, but even concentric activation was lower in traditional closed chain exercises. This data supports that FW is an effective training tool and should be considered when designing strength training programs for spaceflights and on Earth.Alkner BA, Bring DK-I. Muscle
activation during gravity-independent resistance exercise compared to common exercises. Aerosp Med Hum Perform. 2019; 90(6):506–512.
Pilots’ Fixation Patterns During Taxiing and the Effects of Visibility
Authors: Zhang Xiaoyan , Qu Xingda , Xue Hongjun , Liu Jian
Published: May 2019

INTRODUCTION: Visual performance is important for safe and accurate taxiing operations. Visibility is associated with navigation errors during taxiing. The main objective of the present study was to investigate the effects of visibility on pilots’ fixation patterns during
taxiing. The interaction between visibility and flight experience was also examined.METHODS: Both experienced and less experienced pilots participated in the study. They were instructed to perform simulated taxiing tasks in two visibility conditions: clear day vs. low visibility.
A mixed-model analysis of variance was performed to determine the main and interaction effects of ‘visibility’ and ‘flight experience’ on fixation data in each area of interest (AOI).RESULTS: The results showed that experienced pilots’ fixation counts
reduced on the electronic centralized aircraft monitoring (ECAM) area, but increased out the middle view (OTWM) and right view out of the window (OTWR) in low visibility than in clear day, while fixation counts among less experienced pilots increased on the primary flight display (PFD) and
ECAM areas, but did not change significantly OTWM and OTWR in low visibility. Fixation duration increased by 59.8%, 9.8%, and 7.9% in ECAM, OTWL, and OTWR, respectively, in low visibility than in clear day.CONCLUSIONS: The findings suggest that pilots pay more attention and have
higher perceptual load in the low visibility condition to maintain taxiing accuracy, and more experienced pilots make more visual efforts to extract information from AOIs outside the cockpit in the low visibility condition. These findings provide practical implications for safe and accurate
taxiing operations.Zhang X, Qu X, Xue H, Liu J. Pilots’ fixation patterns during taxiing and the effects of visibility. Aerosp Med Hum Perform. 2019; 90(6):546–552.
Implications of Space Suit Injury Risk for Developing Computational Performance Models
Authors: Stirling Leia , Arezes Pedro , Anderson Allison
Published: May 2019

INTRODUCTION: Although a space suit is a technological feat sustaining human life outside the spacecraft, working in the space suit environment can lead to musculotendon and soft tissue injuries in astronauts. In this literature review, we consider the injury risk mechanisms
for human-space suit interactions. We first present a review of space suit injury risk founded in empirical, statistical, and experimental studies. We then review efforts in computational modeling of a human and space suit. As the interpretation of models for injury risk has not previously
been defined, a review is presented of biomechanical considerations of injury risk to the tissue and joints based on previously observed space suit injuries. A review of risk assessment in occupational health in the workplace is then presented, an adjacent area that informs relevant measures
of consideration for human-space suit applications. Finally, we discuss how the work-to-date can inform continued efforts in minimizing risk of musculoskeletal injury to the human when using a space suit. From the literature, this review concludes space suits cause biomechanical alterations,
inducing musculoskeletal injury. Combining occupational health kinematic constraints with computational models could enable a trade space evaluation on space suited biomechanics to reduce risk mechanisms. Future work, though, is required to enable computational models to be predictive of individual
injury risk. Our findings show there are significant gaps in our current knowledge on tissue injuries that preclude biomechanical models from being used directly as an injury risk assessment model. This review identifies how risk factor monitoring and modeling will enable improved space suit
design and evaluation.Stirling L, Arezes P, Anderson A. Implications of space suit injury risk for developing computational performance models. Aerosp Med Hum Perform. 2019; 90(6):553–565.
Cumulative Cyclic Exposures to 8000-ft Pressurization Equivalence and Attention Network Responses
Authors: Thropp Jennifer E. , Buza Paul W.
Published: May 2019

INTRODUCTION: The literature is equivocal regarding the degree of cognitive impairment incurred at the 8000-ft (2438 m) maximal cabin pressure altitude equivalence for commercial aircraft. This study elaborates upon the investigation of the 8000-ft limit by introducing the cumulative
effects of repeated daily exposures thereof.METHOD: Pilots completed four daily high-altitude chamber flights at both sea level and 8000 ft. During each chamber flight, attentional processing and executive function were assessed using the Attention Network Test and the antisaccade
task.RESULTS: Antisaccade task performance likely reflected a learning effect at both altitudes. Attention Network Test results, however, exhibited sensitivity to the fatigue and altitude interaction. Orienting network scores were affected by fatigue differently depending on altitude,
with superior efficiency at 8000 ft compared to sea level (M = 44.9, SD = 25.0 vs. M = 29.0, SD = 18.1) in the last flight of the exposure cycle. Conflict network performance, however, suggested that while fatigue increasingly compromised executive control at both altitudes, marginally worse
overall executive efficiency was observed at 8000 ft compared to sea level, notably in the last flight of the exposure cycle (M = 98.3, SD = 19.8 vs. M = 87.8, SD = 21.7).DISCUSSION: Executive control function, as measured by inhibition of interference in reconciling conflicting
stimuli, degraded as a function of cumulative exposures to mild hypobaric hypoxia, though adaptive measures possibly compensated to preserve performance to a degree. This study serves as a baseline against which longer 8000-ft exposures, including long-haul flight, can be measured.Thropp
JE, Buza PW. Cumulative cyclic exposures to 8000-ft pressurization equivalence and attention network responses. Aerosp Med Hum Perform. 2019; 90(6):513–523.
Auditory Verbal Working Memory Load Effects on a Simulator-Induced Spatial Disorientation Event
Authors: Lewkowicz Rafał , Stróżak Paweł , Bałaj Bibianna , Francuz Piotr
Published: May 2019

INTRODUCTION: Working memory is an essential executive function for flying an aircraft and its limitations may jeopardize flight safety. This function is particularly critical when pilots have to struggle with spatial disorientation (SD) cues. This research aimed to assess the
combined effect of the auditory N-back task (NBT) and simulator-induced SD cues on pilots’ flight performance.METHODS: Using an SD simulator, 39 male military pilots (control N = 20; age M = 31.6; SD = 8.22, experimental N = 19; age M = 26.9; SD
= 8.67) were exposed to 12 flight sequences, where 6 contained an SD conflict—3 with vestibular illusions and 3 with visual illusions. Additionally, the pilots from the experimental group were asked to perform an auditory NBT involving sound stimuli (the sequential letter memory task)
as they performed during oriented and disoriented flight conditions.RESULTS: Pilots’ flight performance from the NBT group were significantly worse than the control group in the approach and landing profiles involving visual illusions (for both nonconflict and conflict flight),
and in the profile involving the false horizon illusion (only for the conflict flight). No increase in a pilot’s susceptibility to SD was observed with any other profiles.DISCUSSION: The current study provides support that pilots’ cognitive workload can negatively impact
flight performance. Pilots are not always aware of altered flight parameters, which may indicate that they have lost spatial orientation, mainly as a result of visual illusion. If problems occur in maintaining proper flight parameters, pilots should direct all available mental resources to
regain their orientation and withdraw from any other parallel tasks.Lewkowicz R, Stróżak P, Bałaj B, Francuz P. Auditory verbal working memory load effects on a simulator-induced spatial disorientation event. Aerosp Med Hum Perform. 2019; 90(6):531–539.
Video Game Play as a Fatigue Countermeasure in Air Traffic Controllers
Authors: Fowler Lauren A. , Gustafson Donielle
Published: May 2019

BACKGROUND: Extensive research has demonstrated that shift-work and time of day affect one’s ability to maintain alertness and vigilance. Research has also sought to determine ways to increase alertness and decrease the effects of fatigue in high vigilance environments,
such as air traffic control. This study was designed to assess the effectiveness of video game play as a fatigue countermeasure in air traffic controllers.METHODS: We tested 22 military air traffic controllers to ascertain whether video game play prior to time in the air traffic
control room heightened their alertness during their shift. An oculometer, which is an objective measure of physiological arousal and visual alertness, was used to measure pupillary diameter, amplitude, latency, and velocity. Perceived alertness was assessed using the Stanford Sleepiness Scale.
Over a 4-wk period, the air traffic controllers participated in a counterbalanced, within-subjects design study with experimental (video gaming prior to control room) and control (no video gaming prior to control) conditions.RESULTS: We used a within-subjects, repeated measures
MANOVA to compare differences in physiological and perceived alertness of individuals in the two conditions. Results indicated that video game play significantly increased physiological alertness in air traffic controllers, especially pupil diameter and velocity, and this effect was sustained
for at least 30 min after they stopped playing. Perceived alertness was also increased by video game play.DISCUSSION: These results indicate that video game play could be an effective fatigue countermeasure in high vigilance occupations such as air traffic control.Fowler
LA, Gustafson D. Video game play as a fatigue countermeasure in air traffic controllers. Aerosp Med Hum Perform. 2019; 90(6):540–545.
Pneumocephalus Associated with Inappropriate Valsalva Technique
Authors: Woodside Sarah S. , Metzler Mari M.
Published: May 2019

BACKGROUND: Pneumocephalus is intracranial air normally occurring as a consequence of trauma or cranial surgery, but rarely has been reported following the habitual use of the Valsalva maneuver. We were unable to locate any similar cases of pneumocephalus associated with high
performance aircraft flight, and this case report highlights an important consequence of the inappropriate use of Valsalva on ascent to altitude.CASE REPORT: A healthy 29-yr-old F-22 instructor pilot presented with recurrent pneumocephalus following the use of the Valsalva maneuver.
These episodes started after an initial use of a forceful Valsalva during an aggressive unrestricted climb to altitude. His symptoms included facial pressure and a bubbling sensation in his head followed by a severe headache for several days. After upright CT evaluation, three small sphenoid
sinus defects were discovered and repaired. There was no recurrence of pneumocephalus following provocative testing after surgical repair of the sphenoid sinus defects, and the aviator returned to flying high performance aircraft.DISCUSSION: Spontaneous or Valsalva-associated pneumocephalus
is an uncommon occurrence in healthy individuals. Awareness of the pathognomonic succussion splash associated with this diagnosis as well as a presentation of facial pressure and headache following flight will lead to appropriate diagnostic investigation and management. This case highlights
the importance of recognizing rare diagnoses like pneumocephalus in the flying population, and future education of aerospace physiology technicians and aviators should emphasize appropriate Valsalva technique to promote flying safety and prevent similar presentations.Woodside SS, Metzler
MM. Pneumocephalus associated with inappropriate Valsalva technique. Aerosp Med Hum Perform. 2019; 90(6):566–569.
Life cycle of Spirogyra decimina var. juergensii (Kütz.) O.V. Petlovany from Lake Baikal
Authors: Volkova Ekaterina A.
Published: May 2019

Identification of Spirogyra species is based on the morphology of the fertile specimens. This work provides characteristics of growth and the time of reproduction of Spirogyra decimina var. juergensii in Lake Baikal and describes sexual reproduction and conditions for germination of new filaments of this species isolated from the lake.
Determination of Phenolic Compounds and Antioxidant Activity in Vegetables Consumed in Mekelle Tigray Ethiopia
Authors: Amabye Teklit G. , Mekonen Frehiwot
Published: May 2019

Vegetables are widely consumed in Mekelle and imported from different regions and zones of the countries. This study was performed to evaluate the phenolic content and antioxidant activity of vegetables commonly consumed in Mekelle. Kale, carrot, cabbage and barcoli were used in the study. This research studies in detail the contents of phenolic compounds determined by the Folin−Ciocalteu reagent and the antioxidant activities determined by DPPH (using diphenyl-p-picrylhydrazyl radical). Among all vegetables kale showed highest phenolic content followed by barcoli, cabbage and carrot   and the highest antioxidant activity were barcoli followed by kale, cabbage and carrot   which was expressed in % of DPPH consumption after 30 minutes of reaction.  The data shows the importance of antioxidant activity of vegetables in the diet.
Changes in Chemical Compositions of Olive Oil under Different Heating Temperatures Similar to Home Cooking
Authors: Li Xueqi , Bremer Grant C. , Connell Kristen N. , Ngai Courtney , Pham Quyen Anh T. , Wang Shengling , Flynn Mary , Ravetti Leandro , Guillaume Claudia , Wang Yichuan , Wang Selina C.
Published: May 2019

Four olive oils with varying amounts of total phenols were exposed to four different heating conditions. Chemical parameters such as free fatty acid, peroxide values, UV absorbency, total phenols, individual phenols, α-tocopherol, squalene, oleocanthal, fatty acid profile and smoke point were measured before and after heating to evaluate the impact of heating conditions on the oils. We found olive oils have reasonably high smoke point that is suitable for typical home-cooking conditions and fresh olive oil with low FFA and high phenolics are important for the conservation of olive oil quality and health benefits.  A larger degree of oxidation occurred as with increase of heating time and temperature, oils with high level of phenols produced less polar compounds than oils with lower levels of phenols, including refined oils. A significant amount of total phenols and individual phenols such as oleocanthal remained after heating at 121 °C for 10 and 20 minutes, most of squalene stay intact even after heating at 220 °C.
Quality of Autmun Harvested Honey in Dangilla Wereda
Authors: Andargie Tadele , Ashine Gebrehana
Published: May 2019

The study was initiated to evaluate the physico-chemical quality of autumn harvested honey of Ethiopia particularly in Dangilla district, North West Gojjam. Twenty seven honey samples were collected from three different altitudes throughout the chain of honey handlers. The mean value of moisture content, pH, ash, titratable acidity, hydroxyl methyl furfural (HMF) and diastase activity was found to be 18.44, 4.18, 0.265, 3.88, 3.61 and 10.39 respectively. All physico-chemical quality of honey exhibit a significant (P<0.05) difference between samples collected from different altitude and across the chain. The majority of the samples were found to be in acceptable range of international honey commission standard and Ethiopian honey quality standard for all of the tested parameters. Among the tested honey samples, only 14.8% (moisture content) and 11.1% (titratable acidity) were above the standard limit. Overall, the outcome of this study shows, Dangilla district has the great potential to provide honey for local consumption as well as for exporting honey to foreign market.
Genotypic Variation of Mineral Elements and Phytate Levels of Thirty Cowpeas (Vigna unguiculata L. Walp.) Varieties Cultivated in Burkina Faso
Authors: Sombie Pierre A.E.D. , Ouedraogo Ibrahim , Tignegré Jean Baptiste D.L.S. , Hilou Adama , Ouedraogo Tinga J. , Kiendrébéogo Martin
Published: May 2019

Cowpea is consumed as a staple food in many developing countries. The present study was undertaken to determine the variation in mineral elements and phytate concentrations in 30 cowpeas seeds varieties consumed in Burkina Faso. The composition of the thirty cowpeas seeds in total mineral varies from 5.08 % ± 0.00 to 3.55 % ± 0.08. The genotype CR06-07 showed the high content of total mineral (ashes) and the genotype Kondesyoungo local, the low content of ashes. IT81D-994 showed the high content of iron (7.07 ± 0.057 mg/100g of seeds dw), zinc (4.42 ± 0.012 mg/100 g of seeds dw), magnesium (239.80 ± 1.192 mg/100 g of seeds dw), calcium (123.39 ± 2.31 mg /100 g of seeds dw) and potassium (1201.97 ± 25.66 mg/100 g of seeds dw). Na and Se levels in the seeds showed about 4.5-fold and 7.6-fold variations between the cowpeas varieties. The genotype komcallé showed the high content of sodium (5.45 ± 0.20 mg/100 g of seeds dw) and the genotype KVx 414-22-2 had the high content of selenium (0.006 ± 0.0002 mg/100 g of seeds dw). The phytate content of the cowpeas genotypes varied from 555.61 ± 7.48 for TVU 14676 to 13.50 ± 1.14 mg/100 g of seeds dw for KVx 30-309-6G. The [Phy]/[Fe], [Phy]/[Zn], [Phy]/[Ca] and [Phy] x [Ca]/[Zn] ratios showed that the phytate content might compromise the Fe, Zn and Ca bioavailability in some cowpeas varieties. This study indicates that the cowpeas varieties might be considered as mineral source suitable for animal and human consumption.
Ascorbic Acid, Total Polyphenols and Antioxidant Activity of Ficus Carica Fruits
Authors: Sirajo Muhammad
Published: May 2019

Ficus carica fruits are widely consumed in most part of rural areas in Northern part of Nigeria. This study was carried out to evaluate the ascorbic acid contents, tocopherols content, total polyphenols (as garlic acid equivalents), total flavonoids (as quercetin equivalents) and antioxidants capacity of Ficus carica fruits on a dry weight basis (DW). The contents of Ascorbic acid were determined colourimetrically using 2,6-dichloroindophenol; total polyphenolic compounds by Folin-Ciocalteu reagent, vitamin E was determined spectrophotometrically using standard α-tocopherols and antioxidant scavenging activity by DPPH.  The value recorded was 37.00 ± 1.59 mg/100 g, 0.7 ± 0.1 mg/100 g, 384 ± 3.11 mgGAE/100 g, 21.63 ± 1.89 mgQE/100 g, 66.82 ± 7.80% and 560.25 ± 2.89%, respectively for ascorbic acid, tocopherols, total polyphenols, total flavonoids, 1,1-diphenyl-2-picrylhydrazyl (DPPH) scavenging activity and antioxidant capacity respectively. The results obtained showed that the fruits if properly utilized can serve as a supplement of ascorbic acid, tocopherols and some polyphenols which important antioxidants with a wide range of biological benefits.
An Analysis of Brazil’s Economic Situation: 2014-2017, the short-term outlook and policy alternatives
Authors: Nassif André
Published: May 2019

The main goal of this paper is to discuss Brazil’s economic situation in the recent period. Although the analysis is centred on the current Brazilian business conditions (known as the conjuntura econômica in the Portuguese language), the paper covers the period after 2014, during which the country’s economic problems have significantly worsened. The remainder of the paper is divided into the following sections. Section 2 seeks to analyze and discuss the main structural and short-term causes that explain the worsening of Brazil’s economic situation in 2014, as well as the deep recession that followed it. Section 3 critically analyzes the macroeconomic policy adopted by Temer’s government, assuming implicitly that there are both fiscal and monetary policy alternatives. Section 4 concludes and discusses economic policy alternatives for growth recovery of the Brazilian economy, other than those chosen and adopted by Temer’s economic team in 2016 and onwards.
Modern Monetary Theory: a criticism from the periphery
Authors: Vergnhanini Rodrigo , De Conti Bruno
Published: May 2019

This paper presents the recent debate on modern monetary theory (MMT) and contributes to a critical view on its application to peripheral countries. MMT has been centered on both demystifying postulates of the ‘New Macroeconomic Consensus’ and offering an alternative theory to reach full employment with price stability. However, it has been criticized for assuming that constraints on domestic policies are generally self-imposed, not arising from international markets. Using the “international currency hierarchy” approach, this paper argues that peripheral countries, in the context of financial globalization, are not fully sovereign in determining its own macroeconomic policy. Our main argument is that currencies issued by peripheral countries do not fulfill money classical functions at the international level. Being hence illiquid at the international scenario, these peripheral currencies (and assets) are demanded by the international investors only in the quest for high returns; moreover, this demand depends on the “international liquidity preference” and the markets’ confidence in this country. Consequently, interest rates in peripheral countries tend to be higher and volatile. Additionally, the exchange rate is potentially under the pressure of this capital flows movements. Finally, monetary, fiscal and exchange policies in peripheral countries have constrains that are not considered by MMT.
Financial systems, financial governance and economic development
Authors: Kregel Jan
Published: May 2019

The idea that seems to be spreading in response to this crisis to promote the substitution of development financing via private sector institutions in place of government development banks means restoring the inequitable sharing of risk of development finance, promoting instability and protecting finance at the expense of labour, and the inevitable worsening of the distribution of income. Private sector financial markets do not have a good record of providing finance to development investments at levels and rates that would ensure expanding employment, and there is no reason to believe that this will change if the role of development banks is minimized. As liquidity preference becomes the dominant decision variable for investment, Brazil will be back to the problems that Keynes originally analysed in the General Theory, with the addition of the prudential requirements that will aggravate the instability of the growth process, even in the presence of a fully developed domestic financial system, and tilt social support in favour of finance at the expense of labour.
Tily’s ‘semantic pirouettes’ and Lavoie’s post-‘Keynesianism’: a comment on M. Lavoie “Rethinking monetary theory in the light of Keynes and the crisis”
Authors: Tily Geoff
Published: May 2019

In a recent paper in your journal, Marc Lavoie contests remarks I have made about Keynes and endogenous money. I would like very much to respond, and have drafted the following text.
Venture capital and microfinance: an instrumental approach
Authors: Correa Romar , Correa Amelia
Published: May 2019

Following Adolph Lowe, we divide the economy into two sectors, equipment-goods industries and consumer-goods industries, operating over two periods. A structural relationship between the outputs in the two periods is given by a set of inequalities. One possible outcome is a state of less-than-full utilization of available resources. The economy consists of firms and households. Firms are technology entrepreneurs possessing blueprints for the transformation of the existing inefficient level of output to a full employment level, but no wealth. A subset of households, venture capitalists, is available in each of the three sectors. They finance the technologies in exchange for a share of the profits. We show that a stationary equilibrium exists only in the case when financial contracts are written in the second sector.
Macroprudential policy debate, concepts and the Brazilian context
Authors: Portugues Míriam Oliveira Silva , Luporini Viviane , Licha Luis Antonio
Published: May 2019

The economics literature related to the financial system seeks to define the concepts of financial stability, systemic risk and macroprudential instruments for the purpose of drafting a policy that essentially "leans against the wind", that is, a policy that monitors macroeconomic vulnerabilities and combats system instability. Such a policy should cover all financial institutions involved in credit intermediation (not just banks) and consider the pro-cyclical and intrinsic nature of risk in the financial system, and account for the spillovers effects of policies in other countries, that is, the global context. This article summarizes the main concepts related to macroprudential policy discussed in the economics literature after the crisis the 2008 financial crisis. In addition, we describe macroprudential policy in the context of the Brazilian financial system, specifically major policies implemented in the banking regulatory environment related to Basel III and non-bank regulations related to shadow banks. After the 2008 crisis, Brazil was one of the precursors countries in operating macroprudential instruments to curb excessive credit growth and strong capital inflows. The Brazilian financial system has a broad regulatory perimeter, adhering to international standards and covering the Shadow banking system. This system has a weak connection with the banking system and is small relative to the financial assets of the national and global systems. 
The Development of Laboratory Equipment for Testing The Characteristics of Unsaturated Soils
Authors: Botoș Marius Lucian , Gobesz Ferdinánd-Zsongor , Kisfaludi-Bak Zsombor
Published: May 2019

The laboratory assessment of the hydraulic characteristics of unsaturated soils usually requires expensive equipment and an extended time period. With lack of financial support, yet taking advantage of local knowledge and resources, the development of cheaper alternative equipment is presented in the present paper. The automated setup allows the assessment of the saturation degree of soil samples subjected to different suctions.
Study of Advanced Manufacturing Technologies for Active Parts of Injection Molds
Authors: Soós Noémi Rita , Soós Ödön János
Published: May 2019

The main objective of this paper is to show the advantages of advanced manufacturing, such as high speed machining (HSM), for the active plates of injection molds. The goal of the experiment is to push the machine and the tools to the limit without reducing the surface quality of the manufactured part. The parts that are machined in this experiment are the active components of bucket injection mold. The mold core and nest is composed of several plates that have to form a whole when mounted together.
Hungarian Language Technical Terminology from 1920 Until Today
Authors: Varga Irén Zabóné
Published: May 2019

This study is the last one of a three-part series reviewing the history of Hungarian language technical terminology. In this article, we strive to present all the factors that have influenced the state of Hungarian technical language and terminology at a particular period of time during the past hundred years. Over a long period of time, the most important part in establishing and disseminating adequate Hungarian terms was played by standards, dictionaries and the publishing of technical literature. Since this situation has dramatically changed by now, after presenting the current state of affairs, we make suggestions on handling terminological problems emerging in the course of technical communication, the instruction of technical language or the translation of technical literature.
Examination of Spot Welded Seam of a Car Body
Authors: Andraws Andrew , Széll Károly
Published: May 2019

Spot welding is widely used in car industry to create a cheap and light body and chassis. Engineers tend to use spot-welding in order of reducing the production costs, also lowering the stress intensity which can cause failure and fractures of the body or chassis. Our goal here is to examine spot-welding of a car body with different tests and find out later if there is a possibility of using a different technology that can produce a better seam that can be automated with industrial robots.
Safety Versus Modern Environmental Problems
Authors: Bera József
Published: May 2019

With the wide application of engineering technologies, environmental aspects increasingly focus attention on safety. Reducing environmental impacts also affects operational safety, and because of the adverse effect, there is a dual situation in the relationship of these two areas. On one hand, maintaining the acceptable environmental status is closely related to the secure operation of the technologies, on the other hand, by ensuring safety, the risks of the new environmental impacts shall be managed. Such risks prevent the development of a dynamically balanced environmental system. Based on the examination of both the environment uses and the operational conditions, we have reached the conclusion that we will analyse environmental risk management in the context of safety. In the first phase of the research we reviewed the relations between safety and the modern environmental problem.
Turkish Bath Culture in Hungary
Authors: Bodolai Henrietta , Kósa Balázs , Molnár Tamás , Szücs Gábor Arnold
Published: May 2019

Just like at the Romans, the bath was the main venue of everyday life for the Turkish people as well. Besides exchanging recipes, women gave advice to each other, the men disputed important issues and often kept pre arranged marriages here. You were only allowed to pray, when you were sufficiently cleaned. Of course, it is not insignificant that the construction of baths was in many cases intended to promote material well-being, as they were usually built by senior executives who influenced the satisfaction of their followers in a very positive direction. Generally speaking, these baths were free for the reasons mentioned above, indicating to everyone that the builder was a wealthy man.
Consolidating The Control of Previously Automated Homes
Authors: Dombi Kristóf Barnabás , Tóth János
Published: May 2019

Nowadays, the number of smart homes is increasing steadily. People tend to try anything for better comfort for their family, or simply for themselves. We spend roughly half of our lives at home, so it’s only logical to focus and pursue higher comfort levels for our homes. This phenomenon opens enormous potential for automation, whether it is automatic garage doors, motorized shutters, access control systems, HVAC systems, or anything else that serves our well-being. This project looks at the implementation of some automation tasks, using a PLC (Programmable Logic Controller). This approach is different from conventional automation, thanks to the ability of the PLC to control everything in a building thus condensing three, or even four floors into one central unit.
Risks of Industry 4.0 and Digitization
Authors: Fregan Beatrix , Kocsis István , Rajnai Zoltán
Published: May 2019

Industry 4.0 is considered as the digital transformation of manufacturing. Changes due to digitalization are running at a continuously accelerating speed, developments change our whole world, and completely changing the production and labor markets. An overview of the labor market effect of overall digitalization is provided. Predictions and forecasts for labor market phenomena due to robotization are given in terms of overall changes in employment. Changes in employment structure are influenced by several factors of computerizability of the individual work activities of various jobs.
Analysis of The Losses of Pneumatic Driven Concept Vehicles
Authors: Gábora András , Sipos Kristóf Balázs , Lovadi Gyula Dávid , Szántó Attila , Szíki Gusztáv Áron , Borzan Marian
Published: May 2019

The Faculty of Engineering of the University of Debrecen has more than ten-years of experience in developing vehicles with pneumatic drive. It is an increasing challenge for the developer teams to improve the performance of vehicles, with rules becoming increasingly strict year by year. Recently, a student team of the Faculty of Engineering began developing a telemetric system to support the other teams at our Faculty and improve the possibility of their successful racing in this way.
Evaluation of Suppliers at A Steel Structure Manufacturer
Authors: Keller Katalin , Kocsi Balázs , Budai István
Published: May 2019

In today’s world, where competition is becoming increasingly prominent, companies need to focus on several aspects in order to be successful in their operations. Purchasing is essential to achieving this goal, so suppliers can be evaluated as well. A new approach is created based on the QFD method for evaluating suppliers, which can be quickly and easily performed, even without the help of a computer. This method was tested in a company based in a North Eastern Hungarian city. Firstly, suppliers were selected by ABC analysis and then the expectations were defined and compared based on the order of their preference matrix. The three categories were A, B and C, one supplier achieved a place in the best category, two suppliers a place in the second category, five suppliers joined the third category. Furthermore, Suppliers were categorized by Kraljic matrix. The supplier rating which was based on the QFD (Quality Function Deployment) method, allows analysis of the performance of a given supplier in an easy way within the company and to develop them over the long-term in order to make the company more successful based on the results of combined work.
Turkish Secrets Hidden in Our Streets
Authors: Kósa Balázs , Juhász Hajnalka , Gyüre Lilla , Schmidt Olivér , Németh-Szigeti Renáta , Paczolai Kinga , Széll Attila Béla
Published: May 2019

Hungary has been the home of many peoples from the beginnings of its history. As a result, our accumulated heritage is made up of buildings which were built, used and formed by different peoples during their lifetimes. This study investigates the diversity of the built heritage, the architectural and social multiculturalism in the city centre of Pécs.
Aerodynamical Investigation of The Wings of an Ultralight Aircraft
Authors: Molnár Richárd , Dezső Gergely
Published: May 2019

Nowadays more and more ultralight aircraft are being built because the building process itself and the acquisition of the necessary documentation is relatively easy. Furthermore, these planes are easier to fly than larger types of aircraft. This article presents the engineering work and documentation that is necessary for the building process. The calculations can be done traditionally on paper which is an extremely complex task. With the innovations and developments in the technical field though, it is possible now to simplify these calculations, the basis of which is the finite element method and aerodynamics simulations. If the finite element method is adequate, the boundary conditions are ideal and input-output settings for the simulations are correct, it is possible to compare the traditional calculations to the modern simulated engineering work, thus the time necessary for achieving precise results becomes significantly shorter.
The Development of The Unesco World Heritage Area in Pécs
Authors: Németh-Szigeti Renáta , Kósa Balázs , Paczolai Kinga Éva
Published: May 2019

The World Heritage of Pécs is the most valuable historical relic in the city. The conservation, presentation and continuous development is significant. The significant parts of the area are: the Cella Septichora, the Old Christian Mausoleum and the crypts in Apáca Street. Through the design process our prime task is the restoration and expansion of the former development in 2006. The study focuses on creating the Cella Septichora concept.
A Short Review of The Latest Developments in The Science of Thermoelectric Materials
Authors: Pimentel Edgar Marcial , Nagy István
Published: May 2019

This research work is still considered as a theoretical reference material for transmitting the important role that thermoelectric materials play in evolving reality of our world. In this update, a brief reminder of the basics behind thermoelectric materials is provided, followed by some of the most recent developments, whether successful or not, in the attempt to create new more efficient materials for heat recovery within the coming years. One of the approaches deals with an innovative way to produce an already existing base material for thermoelectric application, whilst the other approaches describe new possibilities that were attempts to reach a higher dimensional figure of merit zT.
Material Flow Optimization with The Application of Generalized Network Flow Model
Authors: Pusztai László Péter , Kocsi Balázs , Budai István , Nagy Lajos
Published: May 2019

It is essential for every company to know their business processes well, because these companies must allocate their resources in an efficient way in order to keep or strengthen their market position. During the research we aimed at optimizing the material flow at a wooden box producer company with the use of the generalized network flow model as this model is widely used for modelling production processes. In the first part of our work we calculated the optimal material flows focusing on two objectives, and in the second part we determined a compromise solution. Finally, we compared and evaluated the results of the three models.
Measuring The Rolling Resistance of Pneumobiles
Authors: Szeszák Bence Márk , Juhász György , Sziki Gusztáv Áron , Kondor Rita Nagyné , Sütő Tamás Sádor , Veszelszki Krisztián József
Published: May 2019

In this publication we present a vehicle dynamic model and the motion of equation for pneumobiles. One of the input parameters of the model is the rolling resistance coefficient of the tyres. The present publication describes the experimental setup and work in the course of which the above coefficient was measured and the effect of tyre pressure on rolling resistance was analysed. During the measurement, we examined the effect of tyre pressure on rolling resistance, including when the vehicle in unloaded and in loaded state.
Parameter Determination of A Fuzzy Logic-Based Framework
Authors: Tóth-Laufer Edit
Published: May 2019

During patient monitoring, personalization is extremely important in order to achieve realistic results when determining the risk level based on the measurement of physiological characteristics. This requirement can be met by a system where neither the inputs nor their number are fixed but can be defined in a personalized way. In this article, that kind of flexible framework system is presented, with particular reference to its input factors and their measurement possibilities.
Analysis of Greywater Samples Treated by Filtration
Authors: Ungvári Csaba , Izbéki-Szabolcsik Andrea , Bodnár Ildikó
Published: May 2019

In our research we pre-treated synthetically produced greywaters with filtration on various filters. We characterised the quality of greywater samples using several parameters. We investigated these parameters on the untreated and pre-treated samples as well. We evaluated the efficiency of the treatments by measuring the characteristic parameters. It was shown that the most effective pre-treatment for the greywater’s preparation for reuse is filtration on silica sand or activated charcoal and silica sand combined filter media.
ANALISIS PRODUKTIVITAS OBJECTIVE MATRIX (OMAX) DITINJAU DARI KESELAMATAN DAN KESEHATAN KERJA DILANTAI PRODUKSI DI CV. GRAND MANUFACTURING INDONESIA
Authors: Pratama Ferdian Ary , Henny Henny
Published: May 2019

Produktivitas perusahaan merupakan hal yang paling utama. Dengan mengukur produktivitas maka kita akan mengetahui seberapa besar kinerja perusahaan. Untung rugi perusahaan dapat dilihat dari hal ini. CV Grand Manufacturing adalah salah satu perusahaan yang memperhatikan tingkat produktivitas perusahaannya terutama dari segi keselamatan dan kesehatan kerja. Dengan memperhatikan hal ini maka kita akan mengetahui seberapa besar keuntungan dan kerugian yang didapat oleh perusahaan juga seberapa besar kesejahteraan karyawan di perusahaannya. Pengukuran produktivitas memiliki banyak metode yang dapat digunakan. Pada penelitian metode yang digunakan oleh pengukuran produktivitas OMAX. Beberapa factor dapat terlihat kenaikan dan penurunaannya. Dan bahkan dapat dilihat dari masing-masing komponen yang mempengaruhi produktivitas tersebut. Produktivitas OMAX mengukur berdasarkan factor-faktor yang mempengaruhi produktivitas tersebut. Diantaranya factor manusia dan pekerjaannya merupakan factor yang sangat penting dalam mengukur produktivitas keselamatan dan kesehatan kerja. Dari perhitungan ini didapat indeks produktivitas perusahaan ditinjau dari keselamatan dan kesehatan kerja mengalami kenaikan. Adanya kecelakaan kerja dapat mempengaruhi produktivitas perusahaan. Hal ini dapat menyebabkan perusahaan mengalami kerugian akibat kecelakaan kerja yang terjadi, mesin berhenti akibat kecelakaan dan waktu yang hilang akibat kecelakaan tersebut.