bluuebunny/crossref_metadata_2025 huggingface dataset:
Air Exchange Rate in Air Quality Assurance – A Case Study
Authors: Cîrstolovean I. L. , Horneț M. , Ancas Ana Diana , Profire M.
Published: August 2018

The goals of this paper are to estimate some parameters – indoor temperature and ventilation rate - necessary to determine the heat load demand for ventilation in the amphitheatre named ‘A TALPOSI’-Faculty of Buildings Engineering- with a number of at the most 120 occupants. The study presented in this paper is made when in the amphitheatre it is necessary to assure a comfortable temperature by a permanent functioning of the heating system. The number of air exchanges necessary in the amphitheatre in the natural ventilation process, more exactly, to assure a minimum air exchanges, is imposed by the requirements for the assurance of physiologic comfort in the amphitheatre for the time interval when it is occupied by students. The inner air debit should cover the harmful emissions in the amphitheatre. By the help of these calculated (measured) parameters we have calculated the heat load for ventilation. In the end, with the data obtained from calculations and measurements we find ourselves in the situation of establishing the size of the heat exchanger corresponding to the room, to heat the fresh air taken from outside and send it inside the amphitheatre. The measurements are made with the TESTO apparatus of the faculty. The minimum requirements to assure the thermal comfort are: to achieve a minimum internal temperature θi (t) higher than (or equal to) the normal indoor temperature associated to this space and to assure the air quality, the air exchange rate. The authors want to highlight by this study the necessity and importance of the control on the number of air exchanges in rooms with a high number of occupants and overall, the control of the fresh air debits. The fact that the focus is more and more on heat loss cuts in rooms by tightening closing elements gives birth to the necessity of control of the ventilation system with effects on the consumption of mechanical energy.
Experimental Evaluation of the Effect of Silica Fume on Compressive, Tensile Strength, Abrasion Resistance, Slump and Impact Test and Water Permability Coefficient of Concrete
Authors: Esmailpour M. , Rahmani K. , Piroti S.
Published: August 2018

The use of various additives (admixtures) in concrete and cement products has been considered by various researchers in recent years. Microsilica (Silica fume) can also be considered as one of the most widely used additives (admixtures) in this section. In this study, 120 concrete specimens were constructed using a mix design based on ACI in the laboratory with an overview of records and advantages of using microsilica in concrete. The microsilica used in concrete specimens has been considered 2%, 5.5% and 7.5% by weight of cement. Finally impact permeability, tension and uniaxial compressive strength tests were done on concrete specimens and their mechanical properties were evaluated. The results show that microsilica improves the mechanical properties of concrete. The results also show that the use of microsilica in ordinary concrete has a very positive effect in controlling the surface cracks and increasing some strength parameters such as tensile and compressive strength of concrete.
Investigating the Effect of Distance and Diameter Ratio of Elliptical Piles on the Amount of Force Exerted by Waves in the Pile Groups with Regular Layout
Authors: Ghatarband M. , Askar M. Behdarvandi
Published: August 2018

Today, advanced countries compete enormously for further exploitation in the offshore area, for its enormous fresh resources and space. Therefore, these competitions will double the importance of these types of structures. As it is known, the most important part in the design of the offshore structures is the design of the piles on which the structure will be placed. Engineers have always been trying to build these types of structures with the least cost and the highest safety factor. In this research, the effect of distance and the ratio of the elliptical pile diameters on the strength of the pile group was evaluated using numerical modeling. Five different states of diameter ratios including: 1.2, 1.4, 2, 2.5, 3 and five different distance ratios were investigated. The results demonstrate that with the increase in the diameter ratio, the amount of force decreases while it increases as the distance ratio rises.
Using the Earth’s Natural Potential for Heating a Building
Authors: Horneț M. , Cîrstolovean I.L. , Năstac D.C. , Ancaș Ana Diana , Profire M.
Published: August 2018

It is known the fact that buildings become one of the major energy consumers. In order to ensure thermal comfort in buildings, more and more complex heating, ventilation and air conditioning systems have been used over time, which are currently large primary energy consumers. At the same time, today, the main source of energy production is still the burning of fossil fuels, which is the process leading to significant emissions of greenhouse gases. That is why the current European Union directives enforce both reducing buildings energy consumption with 20% before 2020 and using an amount of 20% of renewable energy. One of the heating systems that best respond to the need to reduce the energy consumption of buildings is the low-temperature radiant heating system., This is the reason why the present paper presents a research project that concerns the use of TABS heating/cooling systems that harness the renewable geothermal energy of the ground provided by a ground-air heat pump in Romania. The experimental research building is one of the research laboratories of the Research, Development, Innovation Institut of Transilvania University of Brasov-Romania In the first cold season of activity for heating the experimental building (2017-2018), the system provided a thermal enegy of 48 MWh, covering 48 % from the amount of the heating load. During the monitored period, the average COP for heating of the heat pump was 4,6. The research will continue to take place, results regarding the economy for cooling the building in the warm season and for the year’s transition periods being expected to follow.
Ranking of Effects of Construction Delay: Evidence from Malaysian Building Projects
Authors: Ullah K. , Khan M. S. , Lakhiar M. T. , Vighio A. A. , Sohu S.
Published: August 2018

The problem of delay is a regular phenomenon in construction projects all around the world and the Malaysian building projects has no exclusion. The aim of this paper is to determine and rank the effects of delay in Malaysian building projects with respect to their Relative Importance Index. Literature review and questionnaire survey were used to gather data for this study. A thorough literature review was performed to identify the common effects of delays in building construction projects. A questionnaire was distributed among key project participants; contractors, clients and consultants, to rank the effects of delay in Malaysian building projects based on the perception of survey respondents. In total 300 questionnaires were distributed, as a result of 240 questionnaires were received. The collected data of questionnaire survey was analysed using statistical software SPSS. In total, 17 effects of the delays have been determined and findings from the survey revealed that time overrun, cost overrun, dispute, loss of profit, arbitration, claims, contract termination, litigation, poor quality of work, and total project abandonment were the main effects of delay in Malaysian building projects. The findings of this study might encourage construction stakeholders to focus on the issue of delays in building projects.
Deep Features Extraction for Robust Fingerprint Spoofing Attack Detection
Authors: de Souza Gustavo Botelho , Santos Daniel Felipe da Silva , Pires Rafael Gonçalves , Marana Aparecido Nilceu , Papa João Paulo
Published: August 2018

Biometric systems have been widely considered as a synonym of security. However, in recent years, malicious people are violating them by presenting forged traits, such as gelatin fingers, to fool their capture sensors (spoofing attacks). To detect such frauds, methods based on traditional image descriptors have been developed, aiming liveness detection from the input data. However, due to their handcrafted approaches, most of them present low accuracy rates in challenging scenarios. In this work, we propose a novel method for fingerprint spoofing detection using the Deep Boltzmann Machines (DBM) for extraction of high-level features from the images. Such deep features are very discriminative, thus making complicated the task of forgery by attackers. Experiments show that the proposed method outperforms other state-of-the-art techniques, presenting high accuracy regarding attack detection.
More than Fitness. A Robustness-based Proposal of a Logical Space to Classify Processes Behind Evolutionary Phenomena
Authors: Airoldi Giorgio
Published: August 2018

The assumption that natural selection alone is sufficient to explain not only which traits get fixed in a population/species, but also how they develop, has been questioned since Darwin’s times, and increasingly in the last decades. Alternative theories, linked to genetic and phenotypic processes, or to the theory of complex systems, have been proposed to explain the rise of the phenotypic variety upon which natural selection acts. In this article, we illustrate the current state of the issue and we propose a logical space based on phenotypic robustness that allows a classification of evolutionary phenomena and can provide a framework for unifying all these accounts.
Keeping Technical Education Aligned to the Needs and Expectations of Industry
Authors: Grebski Wieslaw , Grebski Michalene
Published: August 2018

Paper describes the continuous quality improvement procedures used by the author to keep the General Engineering program at Penn State Hazleton aligned to the needs and expectations of industry. The paper addresses the procedure for the development of program educational objectives which are the goals of the program. The goals of the program are defined jointly by industry leaders and former Engineering graduates as well as the Engineering faculty. The paper also focuses on the development of the student outcomes which is the body of knowledge that every graduate should have at the day of graduation. The paper also explains the process for collecting data for the purpose of assessing the level of attainment of program objectives and student outcomes. Based on the data which is being collected on an ongoing basis, the necessary corrective actions are implemented. This is happening on the program level as well as the course level. The necessary changes on the course level are happening every semester. The adjustments to the Engineering curriculum are being made yearly usually during the summer months. The paper focuses on the constant need for revising the curriculum in order to stay current with technology.
The Structure Analytical Research of Porous Permeable Wire Material
Authors: Jakubowski Andrzej , Crasto Renata
Published: August 2018

The details of making technology of porous permeable material with use of wire are allowed to carry out the analytical research of structure and structural characteristics of wire winding body. Its permit for prognostication the final properties of material, that is produced by the following deformation treatment (diameter reduction). Due to the regular organized arrangement of wire, the coil of winding body is considered as a multispan continuous beam, but a contact of coils - as interaction of two cylinders. Possibility of exactly calculation of the contacts between coils is allowed to go over the single fragment displacements into deformation of whole winding body. During research of deformation processes in regards of winding body geometry and used wire mechanical properties, the structural characteristics of porous permeable wire material are expected. The optimal number of winding layers, eliminating the distortion of organized final structure, is established. The material pressure-compactness relation is obtained in order to control the technological conditions of winding and drafting for guarantee the product required properties.
Strategies of Production Control as Tools of Efficient Management of Production Enterprises
Authors: Budynek Mateusz , Celińska Elżbieta , Dybikowska Adrianna , Kozak Monika , Ratajczak Joanna , Urban Jagoda , Materne Karolina
Published: August 2018

The paper discusses the problem of principle methods of production control as a strategy supporting the production system and stimulating efficient solutions in respect management in production enterprises. The article describes MRP, ERP, JIT, KANBAN and TOC methods and focuses on their main goals, principles of functioning as well as benefits resulting from their application. The methods represent two diverse strategies of production control, i.e. pull and push strategies. Push strategies are used when the plans apply to the first and principle part of production and are based on the demand forecasts. Pull strategies are used when all planning decisions apply to the final stage and depend on the actual demand or orders from customers.
The Application of a Jet Fan for the Control of Air and Methane Streams Mixing at the Excavations Cross – The Results of Numerical Simulation
Authors: Wrona Paweł , Różański Zenon , Pach Grzegorz , Domagała Lech
Published: August 2018

The paper presents the results of numerical simulations into the distribution of methane concentration at the intersection of two excavations with a fan (turned on) giving the air stream to the area of the crossing. Assumed case represents emergency situation related to the unexpected flow of methane from an excavation and its mixing with fresh air. It is possible when sudden gas outburst takes place, methane leaks from methane drainage system or gas leaks out the pipelines of underground coal gasification devices. Three options were considered - corresponding to three different speeds of the jet fan. They represent three stages of fan work. First - low air speed is forced by a pneumatic fan, when electricity is cut off after high methane concentration detection. Medium speed can be forced by pneumatic-electric device when methane concentration allows to turn on the electricity. Third, the highest speed is for electric fans. Simulations were carried out in the Fire Dynamics Simulator (FDS) belongs to the group of programs Computational Fluid Dynamics (CFD). The governing equations are being solved in a numerical way. It was shown that proposed solution allows partial dilution of methane in every variant of speed what should allow escape of the miners from hazardous area.
Qualitative Importance Measures of Systems Components – A New Approach and Its Applications
Authors: Chybowski Leszek , Gawdzińska Katarzyna , Wiśnicki Bogusz
Published: August 2018

The paper presents an improved methodology of analysing the qualitative importance of components in the functional and reliability structures of the system. We present basic importance measures, i.e. the Birnbaum’s structural measure, the order of the smallest minimal cut-set, the repetition count of an i-th event in the Fault Tree and the streams measure. A subsystem of circulation pumps and fuel heaters in the main engine fuel supply system of a container vessel illustrates the qualitative importance analysis. We constructed a functional model and a Fault Tree which we analysed using qualitative measures. Additionally, we compared the calculated measures and introduced corrected measures as a tool for improving the analysis. We proposed scaled measures and a common measure taking into account the location of the component in the reliability and functional structures. Finally, we proposed an area where the measures could be applied.
The Use of Generating Sets with ING Gas Engines in “Shore to Ship” Systems
Authors: Tarnapowicz Dariusz , German-Galkin Sergiej
Published: August 2018

The main sources of air pollution in ports are ships, on which electrical energy is produced in the autonomous generating sets Diesel-Generator. The most effective way to reduce harmful exhaust emissions from ships is to exclude marine generating sets and provide the shore-side electricity in “Shore to Ship” system. The main problem in the implementation of power supply for ships from land is connected with matching parameters of voltage in onshore network with marine network. Currently, the recommended solution is to supply ships from the onshore electricity network with the use of power electronic converters. This article presents an analysis of the „Shore to Ship” system with the use of generating sets with LNG gas engines. It shows topologies with LNG - Generator sets, environmental benefits of such a solution, advantages and disadvantages.
Benefits of an Application of Evolutionary Strategy in the Process of Test Data Generation
Authors: Żukowicz Marek
Published: August 2018

The aim of the article is to highlight the advantages that can be obtained through the use of evolutionary strategy in software testing, specifically in the process of test data generation. The first chapter introduces the reader to the topic of the article. Presents information of the problem of software quality, test data fitness and quality criteria. The second chapter provides an overview of the publication in which is described the test data generation problem by using evolutionary strategies. In this chapter there are presented, different approaches to address the optimization problem of test data selection. The third chapter sets out the advantages which in the opinion of the author result from the application of evolutionary strategy in the process of test data generation. In this section have been drawn conclusions from the article, from books listed in the bibliography. The author of the article presents advantages of evolutionary strategy too as a person, which tests a software in practise. The last chapter in addition to summaries and conclusions, proposes the author to suggest in which issues related to testing could be used evolutionary strategies.
Improvement of the Process of Implementation of New Product for European Market - Case Study
Authors: Zasadzień Michał , Nowrot Zofia
Published: August 2018

An inseparable element of intelligent processes is the effective use of knowledge gained from external sources and the ability to change under the influence of external factors. An example of this can be found in the process of introducing a new construction product to the EU market. It has to react to the ever-changing EU legislature and the national regulations that adapt to it. The frequently asked questions from manufacturers and importers indicate the necessity of creating a procedure that would allow for precisely explaining what the algorithm of the process looks like and what criteria must be met to introduce the new product into the construction product market. The complexity and multitude of regulations as well as the language barrier also cause other complications with the understanding of the process procedure of conduct. The graphical presentation of the algorithm should facilitate following the path of conduct in the case of introducing a new construction product into the EU market. The graphical form should allow for intuitive movement in the process and can constitute a basis for creating an interactive form.
Professional Risk Assessment on the Workplace of Surface Surveyor Employed in Measuring-Geological Department of Coalmine
Authors: Matuszewska Ewa , Orwat Justyna
Published: August 2018

In this article were shown the identification of threats and the assessment of occupational risk for the surface surveyor by using the Five Steps method and taking into account the health state of workers.
Vibrations Detection in Industrial Pumps Based on Spectral Analysis to Increase Their Efficiency
Authors: Rachid Belhadef , Hafaifa Ahmed , Boumehraz Mohamed
Published: August 2018

Spectral analysis is the key tool for the study of vibration signals in rotating machinery. In this work, the vibration analysis applied for conditional preventive maintenance of such machines is proposed, as part of resolved problems related to vibration detection on the organs of these machines. The vibration signal of a centrifugal pump was treated to mount the benefits of the approach proposed. The obtained results present the signal estimation of a pump vibration using Fourier transform technique compared by the spectral analysis methods based on Prony approach.
Preparing the Production of a New Product in Small and Medium-Sized Enterprises by Using the Method of Projects Management
Authors: Bijańska Jolanta , Wodarski Krzysztof , Wójcik Janusz
Published: August 2018

Efficient and effective preparation the production of new products is important requirement for a functioning and development of small and medium-sized enterprises. One of the methods, which support the fulfilment of this condition is project management. This publication presents the results of considerations, which are aimed at developing a project management model of preparation the production of a new product, adopted to specificity of small and medium-sized enterprises.
The Application of Selected Network Methods for Reliable and Safe Transport by Small Commercial Vehicles
Authors: Matuszak Zbigniew , Bartosz Michał , Barta Dalibor
Published: August 2018

In the article are characterized two network methods (critical path method - CPM and program evaluation and review technique - PERT). On the example of an international furniture company’s product, it presented the exemplification of methods to transport cargos (furniture elements). Moreover, the study showed diagrams for transportation of cargos from individual components’ producers to the final destination - the showroom. Calculations were based on the transportation of furniture elements via small commercial vehicles.
Addressing Research Design Problem in Mixed Methods Research
Authors: Alavi Hamed , Hąbek Patrycja
Published: August 2018

Alongside other disciplines in social sciences, management researchers use mixed methods research more and more in conduct of their scientific investigations. Mixed methods approach can also be used in the field of production engineering. In comparison with traditional quantitative and qualitative research methods, reasons behind increasing popularity of mixed research method in management science can be traced in different factors. First of all, any particular discipline in management can be theoretically related to it. Second is that concurrent approach of mixed research method to inductive and deductive research logic provides researchers with opportunity to generate theory and test hypothesis in one study simultaneously. In addition, it provides a better justification for chosen method of investigation and higher validity for obtained answers to research questions. Despite increasing popularity of mixed research methods among management scholars, there is still need for a comprehensive approach to research design typology and process in mixed research method from the perspective of management science. The authors in this paper try to explain fundamental principles of mixed research method, its typology and different steps in its design process.
The Autonomous Maintenance Implementation Directory as a Step Toward the Intelligent Quality Management System
Authors: Molenda Michał
Published: August 2018

The article describes the effects of the improvement of the production process which one of the industrial enterprises obtained by implementing the method of Autonomous Maintenance (AM), which is one of the pillars of the concept of Total Productive Maintenance (TPM). AM method was presented as an aid to the formation of intelligent, self-improving procesess of the quality management system (QMS). The main part of this article is to present results of studies that have been conducted in one of the large industrial enterprises in Poland, manufacturing for the automotive industry. The aim of the study was to evaluate the effectiveness of the implementation of the AM method as a tool for selfimprovement of industrial processes in the following company. The study was conducted in 2015. The gathering and comparison of data from the period of two years, ie. the year before and the year after the implementation of AM, helped to determine the effectiveness of AM in building intelligent quality management system.
Analysis of Selected Recommendations of Parents for Improvement of Shared Care and Joint Custody After Parents/Partners´ Divorce/Separation
Authors: Kopčanová Dagmar , Filípková Bibiana
Published: August 2018

The content of this scientific study is based on the qualitative analysis of selected answers of parents, in the framework of semi-structured interview. The qualitative research is apart of bigger research work P-155/A, dealing with mental health of children in family and school settings. The main goal is to learn and analyse the empirical experience and views of participants, related to joint custody and shared care. The research sample consisted of randomly selected 9 participants who visited Výskumný ústav detskej psychológie apatopsychológie on behalf of some problems regarding custody after divorce/separation. In this contribution the parents´ attitudes towards mutual communication of former partners/parents, functioning of joint custody and shared care and some views related to some limits in this form of shared parenting have been analysed. Some valuable remarks with regard to the need of multi-professional team work, addressed to parents within the process of their divorce/separation proved to be very useful. Parents proposed they would extremely welcome some more help from mental health professionals and their crises intervention actions.

On behalf of discussion we notice that the juridical institute of joint custody and shared care is a very important tool, however, some legislative changes of this law should be still done. Concluding the study, we state that in spite of some methodological problems – like a limited number of research participants, we believe that the results can serve as a basis for the next deeper research, bringing more proposals for improvement in this field.
Theorem from My Life with Psychology
Authors: Kováč Damián
Published: August 2018

A concise autohistoric view of the scientific psychological activity in the Slovak Academy of Sciences during the socialist totalitarian regime, and following the rebirth of democracy. Dominant experimental-laboratory psychology was then followed by empiric-life psychology. Some of the main results from both research approaches are presented, as well as theoretical-methodological syntheses. At present, the author focuses on „oral psychology” because it helps in interpreting the real development of psychology in Czecho-Slovakia. We propose to complement the international symposiums „Child in need” with similar events in the context of „Child in cultivation”.
Comparative Stability Analysis of Stator Current Error-based Estimators of Induction Motor Speed
Authors: Korzonek Mateusz , Orłowska-Kowalska Teresa
Published: August 2018

This paper deals with the stability problem of three stator current error-based estimators of induction motor speed, especially in the regenerating operation mode. The stability of the adaptive full-order observer (AFO) and two model reference adaptive systems (MRASs) based on a stator current error (MRASCCand MRASCV) is briefly analysed, and the stability borders are determined and compared. It is shown that MRASCVspeed estimator is stable in the whole operation range including the regenerating mode without any modifications. The stability enhancement method for AFO and MRASCCestimators is described, and the solution for their stability improvement is proposed. Torque-speed characteristics of the analysed MRAStype estimators in a wide range of drive speed and load torque changes are given, as well as the behaviour of estimators during transients is compared. The theoretical analysis and simulation test results are validated by experimental tests.
Supplementation of Vitamins and Minerals During Lactation
Authors: Makowska-Donajska Magdalena , Hirnle Lidia
Published: August 2018

Introduction. During the lactation period, energy demand and nutritional needs increase in woman. The basis of proper nutrition should consist of a balanced diet and concomitant vitamins and minerals supplementation in doses recommended by major scientific societies. Lactation has a priority over metabolic processes in mother. It absorbs 400-670 kcal per day and increases in case of multiples. Breastfeeding is the best method of feeding infants during their first 6 months of life, therefore it should be promoted among mothers and supported by qualified specialists. According to The World Health Organization (WHO) and The European Society for Paediatric Gastroenterology Hepatology and Nutrition [ESPGHAN], the percentage of women continuing breastfeeding at the child’s age of six months is low and in Poland it is 4-9% for exclusive breastfeeding and 63% for partial breastfeeding. In Europe, only in four countries the percentage of women continuing exclusive breastfeeding at infant’s 6 months of age exceeds 30% (Hungary, Malta, Portugal, Slovakia). Aim. The following article is a collection of current recommendations on vitamins and minerals supplementation during lactation. In addition to the recommendations, practical aspects of successful lactation and its impact on the health of infants and mothers have been described.
Significance of Music Therapy in Obstetrics and Neonatology
Authors: Hirnle Lidia , Wróbel Monika , Parkita Anna
Published: August 2018

Introduction. The multi-faceted function of music and its influence on psychological as well as physical well-being have been known from ancient times. Positive reports regarding music therapy contributed to increased interest in this particular branch among many obstetricians and neonatologists. The following study describes the review of clinical trials concerning music influence on pregnant women, women giving birth and on newborns. It has been proved using cardiotocography that fetus reacts to music - for example increased fetal heart rate was monitored as well as the baby being more active when the mother was exposed to particular sounds. Additionally, newborns respond positively (calm down more easily) when listening to the kind of music that their mothers had been listening to during pregnancy. Listening to classical, religious or even popular music can effectively reduce anxiety and pain sensation among pregnant women in both vaginal delivery as well as caesarean section. Two weeks of listening to music for 30 minutes a day can significantly reduce the risk of post-natal depression. In the case of newborns, especially premature neonates, the choice of music has a particularly strong impact. The American Academy of Pediatrics acknowledged 45 dB as an upper limit for the sound that should reach the incubator. Results. Babies exposed to higher level of noise can be at risk of changes in routinely monitored parameters such as increased heart rate, breathing frequency and hypoxia. On the contrary, a reversed outcome can be achieved by applying pieces by Mozart. Current reports prove the positive influence of introducing music therapy as an element of interdisciplinary and holistic care of pregnant women and newborns.
Staging Sustainability at Expo 2000: Germany’s Panacea for the Crises of Capitalism
Authors: Novac Sergiu
Published: August 2018

This article explores how sustainability was staged in the context of EXPO 2000, the first and only world exhibition organized by Germany. The notion seemed to gain ground around the turn of the millennium in global political and policy circles, especially through such documents as the ‘Agenda 21’ and the ‘Millennium Development Goals’. These were also the main source of inspiration while organizing EXPO 2000, which, under the motto ‘Humankind, Nature, Technology’ claimed to put forward a radically different vision for the 21st century. However, throughout the paper I argue that sustainability ended up performing a quite different ideological function. In Germany, the staging of sustainability took place as an activation of expertize, meant to fix a crisis of the economy and to open up new grounds for capitalism’s search for profit, ultimately deepening the environmental crisis that it was meant to alleviate in the first place.
Unwrapping the Spontaneous Flora: On the Appropriation of Weed Labour
Authors: Ábrán Ágota
Published: August 2018

Part of the raw material accumulation for the medicinal plant industry in Romania is reliant on gathering plants from the so-called spontaneous flora. The imagery of medicinal plants played upon by medicinal plant product manufacturers is often abundant in visions of either wilderness or traditional peasant landscapes such as pastures. This article aims to present instead two different spaces where medicinal plants come from: wild pansy from within an oil seed rape cultivation, and elderflowers and nettles from the ruins of a former socialist orchard. These spaces of spontaneous flora highlight the process of capital’s appropriation or salvage of the ‘free’ reproductive labour (spontaneous growth) of weeds often at odds and against other capitalist processes. Moreover, salvaging or scrounging is done through the cheap labour of a family whose livelihood depends on work both inside and outside of this capitalist process. These places, therefore, highlight the tension between the spontaneous flora and scroungers on the ground and Nature with its ancestral peasants on the supermarket and nature shop shelves.
ISOLAMENTO E IDENTIFICAÇÃO DE MICRO-ORGANISMOS PATOGÊNICOS EM RESÍDUOS SÓLIDOS DE SERVIÇOS DE SAÚDE
Authors: MARTINS Carmem Costa , KOZUSNY-ANDREANI Dora Inês , MENDES Elena Carla Batista
Published: August 2018

Os resíduos sólidos de serviços de saúde (RSS) é um fator preocupante para governantes, não pela quantidade gerada, mas pelo potencial de contaminação. O presente estudo teve como objetivo isolar e identificar micro-organismos patogênicos presentes nos Resíduos de Serviço de Saúde. Foram colhidas amostras de resíduos sólidos de saúde de três locais diferentes no município de Santa Fé do Sul-SP. Cada amostra foi diluída em solução salina (NaCl 0,5%) e, após este procedimento, 0,1mL de cada diluição foi inoculado a 37ºC. Foi realizada a contagem de colônias e avaliação das características das colônias com coloração de Gram para bactérias, azul de algodão para fungos e métodos bioquímicos. Constatou-se presença de vários micro-organismos patogênicos. Os resultados permitem sugerir que os micro-organismos presentes nos resíduos de serviços de saúde, se não possuírem um manejo adequado e não forem submetidos à descontaminação prévia antes do destino final, representam riscos à saúde humana e ao meio ambiente.
PRODUÇÃO DO CUIDADO EM SAÚDE MENTAL NA ATENÇÃO BÁSICA: REVISÃO INTEGRATIVA
Authors: DOS-SANTOS Edirlei Machado , Soares Júnior Renan da Cunha , Mafra Adriana Luís Sartoreto , Santos Gislaine Machado dos
Published: August 2018

Trata-se de um estudo de revisão integrativa, cujo objetivo foi analisar publicações na base de dados LILACS (Literatura Latino-Americana e do Caribe em Ciências da Saúde), acerca da relevância existente entre a Saúde Mental e Atenção Básica, bem como as fragilidades para a produção do cuidado em saúde mental, evidenciadas por meio de produções científicas brasileiras. Foram selecionados 10 artigos, de um total de 39 referências encontradas. Os estudos demonstram a relevância das equipes da Atenção Básica em relação à assistência aos usuários com transtornos psíquicos e sua família, no entanto, apontam para a necessidade de superação de conceitos organicistas e centrados na lógica da exclusão ainda presentes nos processos de trabalho das equipes de Atenção Básica, bem como, para a necessidade de ampliação e melhoria nos processos formativos dos profissionais que atuam nos serviços primários de saúde, com vistas ao fortalecimento do acolhimento e vínculo, numa relação profissionais-usuários/família.
THE USE OF WEB-BASED EXAM (WBE) TO OPTIMIZE STUDENTS� TESTING RESULT
Authors: Ngafif Abdul
Published: August 2018

This research was conducted based on theproblems found during the mid and final test by using paper and pen test; those are the students tend to do cheating, the sleepy supervisors, the inconsistency of test time, and the risk of losing the answer sheet. Therefore, the goals of the research are; 1) to make an appropriate WBE testing system, 2) to know the cheating rate of the students, 3) to find out the effectiveness of the system, and 4) to inform the benefits that might be taken by the WBE testing system�s users. By applyingRnD research model, the researcher applies a concept called web-based exam system which uses three main tools to run the system (teacher�s laptop as the server, WBE software, and access point to communicate the server and the user). The results indicated that the system reduces the students� cheating rate 100%. Then, from the questionnaire given, the teacherstend to likeusing WBE testing system because they can monitor the whole process of the test from his own laptop and the result of the test will be analyzed and be saved automatically in his laptop. Moreover, it reduces time consumption and paper use.Keywords: web-based exam, testing system, testing result, cheating, software
STUDENTS� AND LECTURERS� PERCEPTION ON ACADEMIC WRITING INSTRUCTION
Authors: Oktarina Santi , Emzir Emzir , Rafli Zainal
Published: August 2018

The aim of this research is to gain the perception of students and lecturers toward academic writing instruction Indonesian language classes in Universitas Sriwijaya. This current research was a part of research and development study on Moodle-based teaching model for academic writing instruction in Indonesian language classes. The steps of research and development model was carried out using survey and content analysis. The research was conducted in Universitas Sriwijaya. Questionnaire, interview and focus-group discussion (FGD) were instruments to collect data. Meanwhile, both quantitative and qualitative data analysis was used to analyze the collected data. After analyzing data from questionnaire, both students and lecturers perceived that academic writing instruction in Indonesian language classes are good and proper. However, the data from interview and FGD showed that there were different views between students and lecturers regarding to academic writing instruction in Indonesian language classes.Keywords: perception, instruction, academic writing
Primary Photochemical Dynamics of a Triply-Bonded Metal Carbonyl Dimer Probed Via Ultrafast Infrared Spectroscopy
Authors: Lomont Justin , Nguyen Son , Harris Charles
Published: August 2018

The primary photochemical dynamics of [Cp*Cr(CO)2]2 have been studied using picosecond time-resolved infrared (TRIR) spectroscopy. Upon visible or UV photoexcitation, the primary photochemical pathway is formation of a transient rear- rangement isomer with a weakened Cr≡Cr bond and two terminal carbonyl ligands rearranged to a bridging conformation. This species reverts to the parent dimer on the time scale of 378 ± 15 ps, and Density Functional Theory calculations suggest that this transient species is characterized by a triplet spin state and a trans conformation of the two terminal CO ligands. Photolysis in neat THF solution is unable to trap the transient intermediate via solvent-coordination. The excited state transient rearrangement isomer appears to adopt a distorted structure in THF, relative to cyclohexane, evidenced by the observation of an additional bridging-CO stretching band in THF solution. The lifetime of the transient in THF is just slightly shorter at 344 ± 17 ps. The CO-loss product of 1 has been characterized previously and adopts an asymmetric arrangement of the three bridging CO ligands. In neat THF solution, the CO-loss complex is not observed to react with THF on the picosecond timescale, although a previous study on longer timescales observed formation of a THF adduct of the CO-loss complex in dilute alkane/THF solutions. Though the molybdenum congener, [Cp*Mo(CO)2]2, is unstable in solution, decaying on the timescale of a few hours in cyclohexane, TRIR experiments demonstrate that no bridged photoproducts (transient or long-lived) are formed from the Mo complex in cyclohexane solution.
Eigencages: Learning a Latent Space of Porous Cage Molecules
Authors: Sturluson Arni , Huynh Melanie T. , York Arthur H. P. , Simon Cory
Published: August 2018

Porous organic cage molecules harbor nano-sized cavities that can selectively adsorb gas molecules, lending them applications in separations and sensing. The geometry of the cavity strongly influences adsorptive selectivity.

For comparing cages and predicting their adsorption properties, we embed/encode the cavities of a set of 74 porous organic cage molecules into a low-dimensional, latent "cage space".

We first scan the cavity of each cage to generate a 3D image of its porosity. Leveraging the singular value decomposition, in an unsupervised manner, we then learn across all cages an approximate, lower-dimensional subspace in which the 3D cage cavity images lay. The "eigencages" are the set of characteristic 3D cage cavity images that span this lower-dimensional subspace. A latent representation/encoding of each cage then follows from expressing it as a combination of the eigencages.

We show that the learned encoding captures salient features of the cavities of porous cages and is predictive of properties of the cages that arise from cavity shape.
El Coltán En Colombia, Entre Ganancias Globales Y Problemáticas Locales - Dinámicas Hacia Una Nueva Vorágine
Authors: Galvis Santacruz Laura Camila , Fonseca Rafael A.
Published: August 2018

El presente artículo pretende abordar la problemática que vive nuestro país en tanto a la introducción de nuevos medios y formas de producción utilizadas con el fin de explotar y extraer Coltán; Teniendo en cuenta las diferentes problemáticas relacionadas a lo medioambiental, social, económico y político, que acarrea consigo el fenómeno de la explotación de dicho mineral. De igual forma, se desarrolla y contextualiza el proceso que ha tenido la explotación del Coltán desde su extracción en el Congo, hasta la aparición de este mismo en Colombia, Venezuela y Bolivia; y se identifica cada uno de los problemas que trajo y que trae consigo la indiscriminada, ilegal, insostenible y violenta explotación del Coltán en los distintos continentes.
Lectura en el Aula: una experiencia a partir de la pregunta
Authors: Moreno Bernal Ana Liliana , Ramos Sandoval Diana Johanna
Published: August 2018

Desde una perspectiva crítico-social, este artículo da cuenta de un proyecto investigativo en curso que tiene como objetivo, fortalecer la comprensión lectora a través de la pregunta,   partiendo de las vivencias, la realidad, la experiencia personal, social y familiar de 26 estudiantes: 16 niños y 10 niñas, de la Institución Educativa “Gimnasio Gran Colombiano”, de la ciudad de Tunja,  del grado segundo de básica primaria, así como de las dos docentes investigadoras. Desde la Investigación acción educativa, se busca  generar alternativas de trabajo y cambio en las prácticas pedagógicas dentro  del aula, para mejorar la comprensión lectora a partir de la intervención con la pregunta. Se asume como referentes  de este trabajo  investigativo a Solé (2011), Larrosa (2010), Lipman (1998),  Splitter y Sharp (1995) y Freire (1989).  Como avances del proceso investigativo se registran aportes en cuanto a la revisión de antecedentes, así mismo,  se presentan avances en torno a cuatro categorías de análisis emergentes: la comprensión lectora, la pregunta, el diálogo y la experiencia.
MEDICINA E TECNOLOGIAS
Authors: Mendes Filho José Lira
Published: August 2018

O mais importante desafio da medicina continua sendo garantir que a população viva mais e com melhor qualidade. Ao aceitarmos essa premissa, todas as possibilidades devem ser exploradas para formação holística do médico do século 21, valorizando os preceitos básicos da profissão médica e gerando, desenvolvendo e aplicando novos conhecimentos. O mundo real contemporâneo exibe incontáveis possibilidades de novas tecnologias as quais podem ser utilizadas convenientemente, distribuída a todos, minimizando custos e interferindo positivamente na sobrevida das pessoas.
An essay on internationalism in foreign language education
Authors: Byram Michael
Published: August 2018

This essay is an attempt to introduce into the discourse of Foreign Language Education the concept and phenomenon of internationalism. It begins with an analysis of the ways in which education systems promote nationalism and “national citizenship,” and suggests that an internationalist perspective would enrich this tradition in education. It continues with a discussion of the concept and the historical phenomenon of internationalism in its various forms, and the values it incorporates. Some approaches to defining notions of “global citizenship” and their limitations are identified and the essay then argues that internationalism offers a more comprehensive basis on which to build “global,” “cosmopolitan” or other concepts of citizenship. This is then the foundation for presenting a way of thinking about Foreign Language Education as a means of promoting internationalism, which is illustrated by examples from recent practice. The essay ends with some thoughts about future directions in which the internationalist educational purposes of Foreign Language Education might be further realised.
Field evidence for the lateral emplacement of igneous dykes
Authors: Healy David , Rizzo Roberto E , Duffy Marcus , Farrell Natalie J C , Hole Michael J , Muirhead David
Published: August 2018

Seismological and geodetic data from modern volcanic systems strongly suggest that magma is transported significant distance (tens of kilometres) in the subsurface away from central volcanic vents.  Geological evidence for lateral emplacement preserved within exposed dykes includes aligned fabrics of vesicles and phenocrysts, striations on wall rocks and the anisotropy of magnetic susceptibility.  In this paper, we present geometrical evidence for the lateral emplacement of segmented dykes restricted to a narrow depth range in the crust.  Near-total exposure of three dykes on wave cut platforms around Birsay (Orkney, UK) are used to map out floor and roof contacts of neighbouring dyke segments in relay zones.  The field evidence suggests emplacement from the WSW towards the ENE, and that the dykes are segmented over their entire vertical extent.  Geometrical evidence for the lateral emplacement of segmented dykes is likely more robust than inferences drawn from flow-related fabrics, due to the prevalence of ubiquitous ‘drainback’ events (i.e. magmatic flow reversals) observed in modern systems.