bluuebunny/crossref_metadata_2025 huggingface dataset:
First Record of Ectomyelois muriscis (Dyar, 1914) (Lepidoptera: Pyralidae) on Jatoba Hymenaea stigonocarpa (Fabaceae) Fruits in Brazil
Authors: Souza Jaqueline da Silva , Boscardin Jardel
Published: August 2019

The jatoba, Hymenaea stigonocarpa Mart. Ex Hayne (Fabaceae), is a tree species native to the Brazilian Cerrado and is recommended for recovering degraded areas. The fruit of this species is used for food and traditional medicine purposes, and its propagation occurs occurs through seeds. This study aimed to record, for the first time in Brazil, the occurrence of an insect pest on jatoba fruits. We sampled 58 H. stigonocarpa fruits from September to October 2017, on a typical Brazilian Savanna area in the municipality of Monte Carmelo, Minas Gerais (18°50′26″ S and 47°19′04″ W). The emergence of nine adults belonging to the Ectomyelois muriscis (Dyar, 1914) (Lepidoptera: Pyralidae) species was recorded on four jatoba fruits (6.9%). The insect only occurred on injuried fruits. The larva was fed from the pulp of the fruit until reaching the pupa stage, but not consuming the seeds. This is the first record of E. muriscis on jatoba fruits in Brazil.
Research on Advance of Rice False Smut Ustilaginoidea virens (Cooke) Takah Worldwide: Part II. Studies Progress on the Pathogen and Its Toxin of U. virens
Authors: Huang Shiwen , Liu Lianmeng , Wang Ling , Hou Yuxuan
Published: August 2019

In this part, the history of the study on RFS pathogen U. virens was reviewed, including the pathogen naming and the change process, morphological characteristics of U. virens and culture characters both of asexual and sexual stages, and mycelium, chlamydospore, conidiophore and sclerotium germination. Genetic diversity, pathogenicity, the strain-host interaction, host range of U. virens and it’s early detection were also discussed. The research of Ustiloxins of RFS, including biological activity, toxicity to plants and animal, the potential possibility utilization of Ustiloxins, for example use as screening agent for rice varieties resistance to RFS, and anticancer drugs.
Reviewer Acknowledgements for Journal of Agricultural Science, Vol. 11, No. 15
Authors: Brown Anne
Published: August 2019

Reviewer acknowledgements for Journal of Agricultural Science, Vol. 11, No. 15, 2019.
Making Healthcare Systems More Efficient and Sustainable in Emerging and Developing Economies Through Disruptive Innovation: The Case of Nigeria
Authors: Pezzuto Ivo
Published: August 2019

This paper focuses on the potential opportunities that disruptive innovation may bring to the healthcare sector of emerging and developing economies, and in particular to the one of the leading Sub-Saharan Africa’s country, Nigeria. The author examines the possibility of using advancements in the innovation of Technology 4.0 to bridge the gap in access to what could be defined as “good enough” healthcare services for poorer regions of the world while also aiming to potentially reduce healthcare costs and making the local healthcare systems more sustainable, productive, and accessible. Nigerian health industry is used as an exploratory case study to examine the feasibility of implementing Mobile Health and Telehealth Systems, and more in general, to assess the potential benefits of disruptive innovations in the healthcare industry for the lower income patients of emerging and developing economies. This analysis on disruptive innovation, industry competitiveness, and sustainability of the healthcare models is inspired by Michael Porter’s Creating Shared Value (CSV) strategic framework (Porter et al., 2011; 2018) and by Clayton Christensen’s Disruptive Innovation Theory (Christensen et al., 1997; 2000; 2004; 2006; 2013; 2015, 2017). This study also aims to provide a compelling argument supporting the thesis that disruptive innovations in the healthcare system can help grant access to critical basic healthcare services in poor regions of the world while also achieving multiple goals such as, sustainability, efficiency, shared-value creation, and corporate profitability for forward-looking firms with scalable and disruptive business models. Ultimately, the paper aims to contribute to the body of knowledge in the field of disruptive innovation, sustainability, and creating shared-value strategies, assessing the feasibility of solutions that may drive to improved competitiveness, social progress, social inclusion, and sustainability of the healthcare industry in one of the developing economies. The results of this study aim to prove that, in the coming years, disruptive innovations are likely to redefine the competitive environment of the healthcare industry and improve the healthcare conditions of the poorer, underserved, and underreached population of developing and emerging economies like Nigeria, thus increasing their life expectancy rates.
Comparative Analysis of Emission Trading Institution: Based on Experimental Economics Method
Authors: Yang Yujian , Li Ziyan , Shao Bicheng , Bu Guoqin
Published: August 2019

As China’s economic development enters a new stage, the government demands the enterprises with high energy consumption and high pollution to save energy and reduce emission. Although the improvement and promotion of the emission trading institutions between enterprises has been proved to be an effective way to control pollution, but only the emission trading theoretical research and practical support can promote China’s environmental protection work in a long term. Using the method of experimental economics with the same market structure, this paper compares and analyzes the features of deal price, transaction volume and market efficiency of enterprises under several different transaction mechanisms, such as double auction, bid auction and offer auction, and provides some reference opinions for the current emission trading market.
Influence of Factor-Magnitude on Occupational Stress Among Agricultural Research Sector Employees in Kenya
Authors: Musi Yusuf Wanjala , Ogolla D. A. , Mutisya D. L.
Published: August 2019

Job dissatisfaction is inevitable in any work environment. The present study explored influence of factor-magnitude on occupational stress among agricultural research sector employees in Kenya. The study was carried out during the restructuring period of the agricultural research institutes in Kenya between 2013 and 2016. The restructuring resulted in the formation of the Agricultural and Livestock Research Organization through the dissolution of four agricultural research institutes and merger of their operations and functions. The former institutes were: Coffee Research Foundation, Kenya Agricultural Research Institute, Kenya Sugar Research Foundation, and Tea Research Foundation. The 2922 employees of the organization were disillusioned during the four years of restructuring due to the loss of upkeep allowances among other benefits. A structured questionnaire was administered to 352 randomly selected employees in a survey carried out in 2016–2017. The study found that poor working conditions, effort-reward imbalance, job psychological distress, and lack of work motivation had significant (p < 0.05) effects on occupational stress. It was concluded that the on-going structural and remuneration changes would result in higher levels of job satisfaction and reduction in occupational stress among employees.
Visual Analysis on Knowledge Management Research Using Citespace
Authors: Shi Jincheng , Zhang Ru , Guo Hongfei , Zhou Yi , Deng Changxing , Yang Fan , Feng Yalei , Jin Naibiao
Published: August 2019

In recent years, research on knowledge management has become a hot issue in academia and industry. From the research literature of existing scholars on knowledge management, although research in this field has yielded a large amount of important research results, however, there is a lack of quantitative literature review to summarize the current status and development of the field. Most studies lack in-depth and extensional research on the basis of predecessors. This paper uses the bibliometric method to conduct statistical analysis of the literature in the field of knowledge management research, perform visualized analysis of the content of knowledge management research with citespace software, aiming to further understand the development of knowledge management research through analysis of relevant literature, frontier hotspots and future trends. The results of the research show: knowledge management research enters explosive development stage; Interdisciplinary and multidisciplinary research will gradually become the direction of development in this field; the integration of knowledge management and big data will become future research trend.
Burden and Standard of Proof in Election Petitions without Criminal Allegations
Authors: Osadolor F. O.
Published: August 2019

The burden and standard of proof in election petition without criminal allegation is in tandem with the extant Evidence Act, as election petitions is sui generis. The purpose of election laws is to obtain a correct expression of the intent of the voters. However, this paper argues that whereas proof of election petition without criminal allegations requires proof on the preponderance of evidence, the shallow chant of “he who asserts must prove” in the extant law is a conduit pipe for electoral injustice. This paper therefore makes a clarion call for the amendment of the relevant extant law to usher in a legal regime of burden of proof on the pleadings, where whoever asserts the affirmative or positive must prove on the state of the pleadings.

The rebuttable presumption of the regularity of the conduct of elections and declaration of results, no longer serve the end of justice in our electoral process. This paper therefore argues that the Electoral Act be amended to place the burden of proof of the regularity of elections and declaration of results on the Independent National Electoral Commission (INEC), to meet the desired justice contemplated in the electoral process.
A rose by any other name: het Hof van Justitie stelt grenzen aan controles binnen het Schengengebied
Authors: Rijpma J.J.
Published: August 2019

A rose by any other name: het Hof van Justitie stelt grenzen aan controles binnen het Schengengebied

In Touring Tours oordeelt het Hof van Justitie dat de verplichting tot het controleren van de verblijfsstatus van internationale buspassagiers binnen het Schengengebied geschaard kan worden onder het begrip (politie)controles binnen het Schengengebied. Hoewel deze in principe zijn toegestaan onder de Schengengrenscode, hebben de controles in casu een effect dat gelijk is aan controles aan de binnengrenzen en zijn daarom in strijd met het Unierecht. Dit artikel plaatst vraagtekens bij de keuze van het Hof van Justitie om de controles aan te merken als politiecontroles en plaatst het arrest in de bredere context van de spanning tussen mobiliteit en veiligheid in de nasleep van de vluchtelingencrisis.

HvJ 13 december 2018, gevoegde zaken C-412/17 en C-474/17, Touring Tours en Sociedad de Transportes, ECLI:EU:C:2018:1005.
Een gelijk speelveld in de online platformeconomie?
Authors: Felderhof L.E. , Rozenbroek M.P.C.
Published: August 2019

Een gelijk speelveld in de online platformeconomie?

De Verordening ter bevordering van billijkheid en transparantie voor zakelijke gebruikers van onlinetussenhandelsdiensten heeft het doel te zorgen voor een eerlijke, transparante en voorspelbare bedrijfsomgeving voor ondernemers (met name het midden- en kleinbedrijf) die online platforms gebruiken om hun goederen en/of diensten aan te bieden aan consumenten.

In dit artikel bespreken wij dat het wenselijk is dat door middel van deze verordening ex ante regels worden gesteld aan aanbieders van online platforms, met name omdat het huidige mededingingsinstrumentarium in de veranderende (digitale) economie niet altijd toereikend blijkt. Ook plaatsen wij enkele kanttekeningen bij de uitvoerbaarheid en het effect van de verordening in de praktijk, welke aspecten volgens ons niet voldoende geadresseerd zijn in de verordening.

Verordening (EU) 2019/1150 van het Europees Parlement en de Raad van 20 juni 2019 ter bevordering van billijkheid en transparantie voor zakelijke gebruikers van onlinetussenhandelsdiensten, PbEU 2019, L 186.
SIMULATION-BASED INVESTIGATION FOR HEAT TRANSFER BEHAVIOR
OF STEEL REINFORCEMENTS IN CONCRETE MACHINE FRAMES
AND THEIR THERMAL EFFECTS
Authors: GLÄNZEL Janine , GEIST Alexander , IHLENFELDT Steffen
Published: August 2019

The determination of the thermal-elastic behavior is one of the main aspects in the design phase of new machine frames. Prototypically simulation models are used for preliminary investigations, which are based on finite element approaches and usually work with simplified material laws. By the manufacturing of machine frames
of concrete steel reinforcements are used to ensure the operation reliability due to the high sensitivity of concrete to tensile stresses. Because of different thermal conductivity and specific heat capacity of steel and concrete
the reinforcement has a not negligible influence on the total thermal behavior of the system, which cannot be covered with conventional material laws, e.g. from material libraries. Preliminary investigations show, that
a volume fraction more than 1 % of the reinforcement of the total volume can cause a relative error up to ten percent in the temperature field. To reflect the real behavior of reinforced concrete for a machine bed,
the influence should be exanimated for two different approaches. Next to the real illustration of the geometry
of the reinforcement in the FE-model, decoupled simulation approaches are used on reduced models, which should approach numerically the material behavior of the reinforcement.
USING SENSORY TOOL HOLDER DATA FOR OPTIMIZING PRODUCTION PROCESSES
Authors: SCHÖRGHOFER Paul , PAUKER Florian , LEDER Norbert , MANGLER Jürgen , RAMSAUER Christoph , BLEICHER Friedrich
Published: August 2019

Today's highly automated manufacturing specifies the service time of a tool in a way that the tooling costs are balanced against the potential costs of a tool failure. However, the potential cost induced by a tool malfunctioning are rather high. Therefore, the current state-of-the art tackles this issue by replacing the tools prematurely at fixed intervals. To tap into the potential of under-utilized tool runtime this work purposes the use of sensory-tool holders and an interfering feedback loop to the machine tool control system. Besides its real-time closed loop control, to avoid tool failure, it also provides data in the context of (a) the work order, (b) the produced part, (c) the NC-block and command line, on (d) specific machines. Based on this data an ex-post analysis to optimize tool-life and productivity scenarios becomes possible, e.g. custom NC-programs for certain work-orders, configurations and machines. Furthermore, downstreamed work steps can be changed e.g. only to measure produced workpieces if abnormal vibrations are reported by in-process-monitoring.
The effects of bacteriophages on the expression of genes involved in antimicrobial immunity*
Authors: Borysowski Jan , Przybylski Maciej , Międzybrodzki Ryszard , Owczarek Barbara , Górski Andrzej
Published: August 2019

Introduction: Bacteriophages (viruses of bacteria) are used in the treatment of antibiotic‑resistant infections. Moreover, they are an important component of the mucosal microbiota. The objective of this study was to investigate the effects of T4 and A5/80 bacteriophages on the expression of genes involved in antimicrobial immunity, including Toll‑like receptors.
Material/Methods: The expression of genes was determined in the A549 cell line using RT2 Profiler PCR Array.
Results: Purified T4 and A5/80 phage preparations significantly affected the expression of 7 and 10 out of 84 examined genes, respectively.
Discussion: Our results are important for phage therapy of bacterial infections and provide novel insights into the role of phages from the mucosal microbiota. They may also lead to novel applications of phages as antiviral and immunomodulatory agents.
OPTIMIZATION OF JOHNSON-COOK CONSTITUTIVE MODEL PARAMETERS
Authors: LÖSCHNER Piotr , JAROSZ Krzysztof , NIESŁONY Piotr
Published: August 2019

In modern machining industry, the concept of process optimization has gained widespread recognition. FEM simulations are commonly used for the optimization of machining operations, allowing for a proper choice
of tool geometry and process parameters to obtain results that are in accordance with end user criteria. However, one has to be wary that a good agreement of experimental and simulation results is mandatory if the simulation is to be used as a basis for optimization of a real-life process. Therefore, a proper choice of constitutive model parameters is vital. Those parameter values are dependent on many variables. Constitutive model parameter values are determined experimentally – therefore, they are accurate only for the conditions (temperature, strain rate etc.) under which the experiment was performed. The alteration, or optimization of model parameters is necessary if cutting and experiment conditions differ, if one wishes to obtain applicable results. In this work,
the authors aim to present a method of optimizing the Johnson-Cook constitutive model parameters to obtain a better fit with experimental data.
MODELING AND CONVERGENCE ANALYSIS OF DIRECTED ENERGY DEPOSITION SIMULATIONS WITH HYBRID IMPLICIT / EXPLICIT AND IMPLICIT SOLUTIONS
Authors: BUHL Johannes , ISRAR Rameez , BAMBACH Markus
Published: August 2019

Conventional metal manufacturing techniques are suitable for mass production. However, cheaper and faster alternatives are preferred for small batch sizes and individualized components. Directed energy deposition (DED) processes allow depositing metallic material in almost arbitrary shapes. They are characterized by cyclic heat input, hence heating and cooling every point in the workpiece several times. This temperature history leads to distribution of mechanical properties, distortions, residual stresses or even fatigue properties in the part. To avoid experimental trial-and-error optimization, different methods are available to simulate DED processes. Currently, the wire arc additive manufacturing (WAAM) is the most competitive DED process. In this work, a simulation method for
the WAAM process is established and validated, which should be capable to calculate global effects (e.g. distortions, residual stresses) of real WAAM-processes with duration of hours and thousands of weld beads.
The addition of beads and layers is simulated by the element birth and death technique. The elements are activated according to the movements of the heat source (arc). In this paper, the influence of the time step, the mesh size and the material properties of the inactive elements in hybrid implicit / explicit and fully implicit solutions are evaluated with respect to the computation time and stability. This investigation concludes several recommendations for AM-modelling. For example, a low Young’s modulus (100 N/mm²) for the inactive elements show nearly no influences on the welding simulation, but introduces numerical instabilities in case of multiple welding beads. The Young’s modulus should be increased to 1.000 N/mm² for small mesh-sizes, small step-sizes and many beads, even when it introduces unwanted stresses.
Elucidation of False Detection of Pesticides During Residue Analysis in Indian Tobacco by Multidimensional GC-MS
Authors: Ghosh Rakesh Kumar , Khan Zareen S , Banerjee Kaushik , Reddy D Damodar , Johnson Nalli , Ray Deb Prasad
Published: August 2019

Background: False detection of pesticides in agricultural produce may raise serious questions regarding both consumer safety and trade. High levels of delta-hexachlorocyclohexane (δ-HCH; 11.7–22.3 mg/kg) were detected in some tobacco samples in a retention time–based GC analysis. Hence, the selection of an appropriate analytical method is an uncompromisable necessity. Objectives: This research work aimed to elucidate false detection of pesticides along with identification of coeluting tobacco matrix compounds to understand the dynamics of false detection with an increase in the number of analyzed pesticides and to screen suitable analytical methods. Methods: Initially, retention time–based GC analysis was performed for monitoring of 10 pesticide residues in tobacco leaf matrix, followed by GC-MS/selected-ion monitoring (SIM) analysis. Then, the total number of pesticides to be analyzed was increased to 47, and residue analysis was performed by involving GC-MS/SIM and multidimensional (MD) GC-MS. Results: A false-positive detection of δ-HCH due to a coeluting tobacco aroma compound, neophytadiene, during residue analysis of 10 pesticides in tobacco (Nicotiana tabacum L.) leaf was observed. This problem was resolved by employing the unique quantifier and qualifier ions in SIM mode. However, with 47 pesticides, neophytadiene completely masked the signal of δ-HCH, which resulted in an impure spectrum of δ-HCH (<30% similarity match) even after application of selective quantifier and qualifier ions. Finally, MDGC-MS analysis could resolve it by chromatographic separation of the said analyte from the coeluting matrix compound. Conclusions: The findings of this work offer the potential to minimize false reporting of target pesticides to comply with consumer safety and trade standards. Highlights: The study identifies various tobacco matrix compounds coeluting with pesticides during multiresidue analysis. Neophytadiene, a tobacco aroma compound, resulted in false-positive detection of δ-HCH. The MDGC-MS could be effectively used as a confirmatory analysis tool for reliable detection of pesticide residue in tobacco leaf matrix.
Refugee Resettlement, Rootlessness, and Assimilation
Authors: Fulfer Katy , Gardiner Rita A. ,   Philosophy Documentation Center
Published: August 2019

We explore how a refugee’s experience of rootlessness may persist after they resettle in a new country. Drawing primarily on “We Refugees,” we focus on assimilation as an uprooting phenomenon that compels a person to forget their roots, thereby perpetuating threats to identity and the loss of community that is a condition for political agency. Arendt presents assimilation in a binary way: a person either conforms to or resists pressures to conform. We seek to move beyond this binary, arguing that the performative quality of the “right to have rights” (Butler and Spivak, Who Sings the Nation-State?; Gündoğdu, Rightlessness in an Age of Rights; Sari, “An Arendtian Recognitive Politics”) and the notion of dwelling in-between worlds (Ortega, In-Between: Latina Feminist Phenomenology, Multiplicity, and the Self) reveal possibilities for a refugee to assimilate in some ways while reinforcing their rootedness. What emerges from our argument is an Arendtian account of assimilation that offers an alternative picture of navigating assimilation than that captured by the binary between parvenu/conscious pariah.
Politics and Its Others
Authors: Pribiag Ioana Vartolomei ,   DePaul University
Published: August 2019

This essay examines Jacques Rancière’s concept of subjectivation, the coming into being of a political subject as the substance of radical democratic politics. In particular, it provides a detailed reading of disidentification and impossible identification as they relate to figures of the Other. I present some possible points of intersection between subjectivation and hybridity, and explain why these concepts may ultimately be incompatible in their most common formulations. Examining closely a few recurring figures of alterity (“the Algerian” and “the immigrant”), I show that, in each case, the Other is used principally as an abstract figure, a procedure which risks effacing historically situated political voices in the name of universalism. Moreover, I argue that decisions regarding which subjects authentically enact politics and which remain in the realm of the police can themselves turn out to be politically neutralizing.
Centered Toward the Margins
Authors: Staron Andrew ,   Philosophy Documentation Center
Published: August 2019

In his 2017 TED Talk, Pope Francis invited his viewers to a “revolution of tenderness” through “love that comes close and becomes real.” Responding to that call, this article argues that Francis’s assertion that “mercy is doctrine” means that the substance of theology and its teaching requires a conversion of the minds and hearts of both students and teachers to paths wherein one might encounter the God of Mercy. After touching upon particular challenges facing teachers of theology in an undergraduate classroom, the article outlines Francis’s theological framework which both stands upon the tradition of Ignatian spirituality and justifies his using the weight of the papacy to reorient the church’s vision toward mercy and the margins. Finally, this article considers Pope Francis’s pastoral call to mercy theology might nourish undergraduate students’ imaginations and make merciful action intelligible, spiritually meaningful, and attractive.
A 20-Year Evaluation of LOINC in the United States' Largest Integrated Health System
Authors: Bhargava Ankur , Kim Tae , Quine Douglas B. , Hauser Ronald George
Published: August 2019

Context.—

Clinical laboratories are obligated to implement Logical Observation Identifier Names and Codes (LOINC), an informatics standard used to uniquely identify laboratory tests. The historical progress of laboratories in achieving this goal is unknown.

Objective.—

To evaluate the implementation of LOINC by clinical laboratories with attention to LOINC's adoption, diversity, and correctness over time.

Design.—

We aggregated data from 130 facilities within the Veterans Health Administration (VA), an early adopter of LOINC, during a 20-year period (1999–2018). To assess the adoption of LOINC, we calculated the annual proportion of tests and results without a LOINC. To assess the diversity of LOINC, we counted the yearly number of distinct LOINCs in active use. To assess the correctness of LOINC over time, we compared the assigned LOINCs to a manually reviewed gold standard for each year.

Results.—

We reviewed a total of 586 000 tests and 9.162 billion results. LOINC adoption, measured as a proportion of both tests and results, improved over time (P < .001). In the final year reviewed, 85% (172 142 of 202 125) of laboratory tests and 99% (547 229 066 of 551 205 087) of results had LOINCs. The number of distinct LOINCs in active use from 1999 to 2018 increased 2.78-fold from 4502 to 12 503 (P < .001). Correctness generally improved but varied considerably by test and across time.

Conclusions.—

The adoption of LOINC has improved during the past 2 decades. More diverse LOINCs were associated with increased adoption and were a challenge to keep up-to-date. The correctness of LOINCs has improved but remains an issue that likely necessitates supplemental review for most applications.
ERGONOMIC ANALYSIS OF THE DRIVER POSITION FOCUSED ON THE CLUTCH PEDAL
Authors: FUENTES- DEL TORO SERGIO , OLMEDA SANTAMARIA ESTER , GARROSA MARIA , DIAZ VICENTE
Published: August 2019

Nowadays there are several ways to interact with a vehicle due to all the different components that are installed on it. From the ergonomic point of view, control of objects can be divided depending on if they are controlled with the lower part of the body or with the upper part. Refer to the vehicle use, an element that can be actively handled can be separated in two groups: those that are driven by hand, for instance, steering wheel, gearbox, etc.; and those that are driven by the lower body, such as the clutch or brake pedal. A good design of those controls could make possible a better and more comfortable drivability, therefore the security of the system would be increased. In addition, it is important to highlight that getting better all these factors, the pedestrian safety is going to be improved in a non-directly way.
Pedals of a vehicle are one of the elements that can influence the most in the driving posture. Also, they are an essential part of the ergonomic position and it depends largely on the driver. Taking into account all this information, it is known that a non-proper decision of the design and selection of the components could generate some negative effects, not only muscle fatigue in long-term but also discomfort.
In order to evaluate ergonomics, many different methods of analysis are usually used, such as: OWAS, RULA, REBA u OCRA, among others.
This article focuses on employing one of these methods (REBA). With the purpose of achieving this goal, a series of test were carried out. A test-vehicle was sensorized to obtain the force and postures of the volunteers, who have different constitution, ages and experience driving. After that in collected data was analysed and compared to bring a new insight in this field.

Keywords: Vehicle, ergonomics, biomechanics, REBA, clutch pedal
CRITICAL EVALUATION OF THE FORMABILITY OF AA2024-T3 SHEETDEFORMED BY SINGLE-POINT INCREMENTAL FORMING
Authors: LOPEZ FERNANDEZ JOSE ANDRES , CENTENO BAEZ GABRIEL , MARTINEZ DONAIRE ANDRES JESUS , MORALES PALMA DOMINGO , VALLELLANO MARTIN CARPOFORO
Published: August 2019

The evaluation of the enhanced formability in incremental sheet forming processes (ISF), and especially in its simplest variant single point incremental forming (SPIF), has been intensively studied within the sheet metal forming community for the last decade. In general, the formability limit in SPIF is defined by means of the fracture forming limit (FFL). This FFL is usually well above the forming limit curve (FLC), which is the limit controlling failure by necking in conventional sheet metal forming operation on ductile metal sheet. However, low ductility sheet metal such as AA2024-T3 presents usually a fracture-controlled mechanism independent to the forming operation considered. In this context, this paper consist in a critical analysis on formability and failure of AA2024-T3 sheets deformed by SPIF. The study is carried out from a double perspective based on an experimental plan including conventional and incremental forming tests, and numerical simulations using the flow formulation finite element tool DEFORM-3D®. The results show the experimental evidence of a formability enhancement in SPIF above the conventional FFL for this kind of material as well as the necessity of calibrating numerical simulations of these incremental forming processes using experimental data obtained from the corresponding experimental SPIF tests.

Keywords: Sheet metal forming, incremental sheet forming (ISF), single point incremental forming (SPIF), formability, fracture.
EVALUATION OF ORGANIZATIONAL COMPETENCIES THROUGH PERFORMANCE INDICATORS
Authors: BRAVO MACÍAS COLUMBA CONSUELO , SARMENTERO BON ILEANA , RODRIGUEZ SANCHEZ YADAMY , GOMEZ FIGUEROA OLGA
Published: August 2019

Increasingly competitive markets forced the business sector to seek to improve its productivity and therefore increase its competitiveness; this is defined as the ability to compete with other companies, achieve a favorable competitive position, which allows to obtain a superior performance to that of competitors and obtain a sustained competitive advantage.
SOCIAL INNOVATION AND EMPOWERMENT IN COLOMBIAN COMPANIES THROUGH DESIGN MANAGEMENT
Authors: JIMENEZ IBAÑEZ EMILIO , MAGAL ROYO TERESA , JORDA ALBIÑANA MARIA BEGOÑA , GONZALEZ DEL RIO  COGORNO JIMENA
Published: August 2019

Colombian society and its SMEs have evolved in the last decade in a remarkable way according to the rest of Latin America countries. Companies needs entrepreneurship models that reflect users´ needs through new products and services, especially if it have a social function that affects them directly or their community. The Ministry of Commerce, Industry and Tourism of Colombia created in 2009 the Program of Productive Transformation, PTP where it offers training and technical assistance programs to companies. In its last report point out among other things, the need to apply criteria of social and environmental responsibility in companies. Thanks to the work developed with the Ministry, the Colombian Confederation of Chambers of Commerce, the Institute of sustainable entrepreneurship at EAN University and the Polytechnic University of Valencia has worked on a new model of comprehensive tutoring for the management of design and innovation called double hexagon that has been adapted to the needs of SMEs in Colombia with success. Results obtained with model implementation have made it possible to discover the importance of collaborative empowerment of workers through training and sustainable implementation in design projects and services based on social innovation.

Keywords: Social innovation, empowerment, design management, Design Thinking, MIPYME, Colombia.
STRUCTURAL EFFECT OF STAGGERED COMPOSITE REINFORCEMENTS WITHIN THE FIREWALL OF AN AIRCRAFT
Authors: RAMIREZ ELÍAS VICTOR ALFONSO , RODRIGUEZ  SANCHEZ ALEJANDRO ESTEBAN , LEDESMA OROZCO ELIAS RIGOBERTO , HERNANDEZ MORENO HILARIO , VARGAS ROJAS ERIK , PUENTE  MEDELLIN LUIS FERNANDO , CELAYA  GARCIA LUIS DAVID
Published: August 2019

The performance of composite materials, such as high strength and low density, is ideal for aerospace applications. This paper presents the structural analysis of a component of a utility aircraft, the STELA M1. As this is still a prototype, the aim is to validate the resistance of its fuselage subjected first to static loads.
Quasi-symmetry without ratios
Authors: Kwapisz Jaroslaw
Published: August 2019

We characterize quasi-symmetric maps between compact metric spaces as homeomorphisms uniformly at all scales.
A comparison formula for residue currents
Authors: Lärkäng Richard
Published: August 2019

Given two ideals $\mathcal {I}$ and $\mathcal {J}$ of holomorphic functions such that $\mathcal {I} \subseteq \mathcal {J}$, we describe a comparison formula relating the Andersson-Wulcan currents of $\mathcal {I}$ and $\mathcal {J}$. More generally, this comparison formula holds for residue currents associated to two generically exact Hermitian complexes together with a morphism between the complexes.

One application of the comparison formula is a generalization of the transformation law for Coleff-Herrera products to Andersson-Wulcan currents of Cohen-Macaulay ideals. We also use it to give an analytic proof by means of residue currents of theorems of Hickel, Vasconcelos and Wiebe related to the Jacobian ideal of a holomorphic mapping.
Parabolically induced unitary representations of the universal group $U(F)^+$ are $C_0$
Authors: Ciobotaru Corina
Published: August 2019

We prove that all parabolically induced unitary representations of the Burger-Mozes universal group $U(F)^{+}$, with $F$ being primitive, are $C_0$. This generalizes the same well-known result for the universal group $U(F)^{+}$, when $F$ is $2$-transitive.
Weak type estimates for functions of Marcinkiewicz type with fractional integrals of mixed homogeneity
Authors: Sato Shuichi
Published: August 2019

We prove the endpoint weak type estimate for square functions of Marcinkiewicz type with fractional integrals associated with non-isotropic dilations. This generalizes a result of C. Fefferman on functions of Marcinkiewicz type by considering fractional integrals of mixed homogeneity in place of the Riesz potentials of Euclidean structure.
MANYETOREOLOJİK (MR) AKIŞKANLARIN KAPALI DURUM VİSKOZİTESİNİN İNCELENMESİ
Authors: GENÇ Seval
Published: August 2019

Bu çalışmada silikon yağ ve demir (Fe)
bazlı manyetoreolojik (MR) akışkanlarının kapalı durum (off-state) viskozite
özellikleri incelenmiştir. Farklı oranlardaki manyetik faz miktarı (hacmen %5,
10, 20, 30 ve 40) ile hazırlanan MR akışkanlarının rölatif viskozitesinin (ηrel)
– manyetik faz miktarına (φ) olan ilişkisi deneysel olarak tespit edilmiştir. Elde
edilen veriler Mooney ve Krieger-Dougherty modelleriyle karşılaştırılmıştır.
Deneysel sonuçlar MR akışkanın viskozitesinin manyetik faz miktarı ile önemli
ölçüde arttığını göstermiştir. Ayrıca viskozite profilleri Mooney modeli ile
uyumlu bulunmuştur.
Kilis Devlet Hastanesi Kanalizasyon Suyundan İzole Edilen Enterobacteriacea Suşlarının Antibiyotik Dirençlilik Profilleri
Authors: MERCİMEK TAKCI Hatice Aysun , BAKIRHAN Pemra Bakirhan , KAPTANOGLU Melike , GENÇ Sema
Published: August 2019

Kilis
Devlet Hastanesi kanalizasyon suyundan MacConkey besi ortamı kullanılarak Enterobacteria familyasına ait suşlar
izole edilmiştir. Laktozu parçalama özelliklerine göre toplamda 30 bakteri suşu
seçilmiştir. Seçilen suşlar morfolojik karakterleri ve biyokimyasal
aktivitelerine göre tanımlanmıştır. Biyokimyasal test sonucuna göre Escherichia coli (Biyotip I ve II)-(Ara
tip I ve II), Klebsiella spp. ve Citrobacter spp. suşları içeren 20 suşun
kısmi tiplendirilmesi yapılmıştır. Tiplendirilen 20 suştan farklı aktiviteler
gösteren 8 suş seçilerek antibiyotik dirençlilik profilleri belirlenmiştir. Seçilen
8 bakteri suşu için farklı etki mekanizmalarına sahip 11 antibiyotik test
edilmiştir (klindamisin, trimethoprim, kloramfenikol, eritromisin, tetrasiklin,
streptomisin, amfisilin, sefotaksim, vankomisin, gentamisin ve sefoperazon). Test
tüm suşlar için MAR indeksi 0.2’nin üzerinde olduğu bulunmuş olup, en yüksek ÇAD
indeksi Escherichia coli Biyotip I ve
Citrobacter spp suşlarında 0.75
olarak hesaplanmıştır.
Host-associated microbiomes and their roles in marine ecosystem functions
Authors: Wilkins Laetitia G.E. , Leray Matthieu , Yuen Benedict , Peixoto Raquel , Pereira Tiago J. , Bik Holly M. , Coil David A. , Duffy J. Emmett , Herre Edward Allen , Lessios Harilaos , Lucey Noelle , Mejia Luis C. , O'Dea Aaron , Rasher Douglas B. , Sharp Koty , Sogin Emilia M. , Thacker Robert W. , Vega Thurber Rebecca , Wcislo William T. , Wilbanks Elizabeth G. , Eisen Jonathan A.
Published: August 2019

The significance of mutualisms between eukaryotic hosts and microbes extends from the organismal to the ecosystem level, and mutualistic symbioses underpin the health of Earth’s most threatened marine ecosystems. Despite rapid growth in research on host-associated microbes (microbiomes), very little is known about their interactions for the vast majority of marine host species. We outline research priorities to broaden our current knowledge of host-microbiome interactions and how they shape marine ecosystems. We argue that this research frontier will allow us to predict responses of species, communities, and ecosystems to stressors driven by human activity, and inform future management and mitigation.
Adaptations to extreme conditions
Authors: Beltz Barbara S
Published: August 2019

The brain architecture of shrimp living in deep-sea vents provides clues to how these organisms have adapted to extreme living.
Editorial RSD6
Authors: Hensel Michael Ulrich , Hensel Defne Sunguroğlu , Sevaldson Birger
Published: August 2019

The sixth Relating Systems Thinking and Design Symposium (RSD6 2017) was held at the Oslo School of Architecture and Design in Norway in October 2017. The central theme of the symposium was “Environment, Economy, Democracy: Flourishing Together”, and called for contributions on democratic participation and policy innovation, sustainable business innovation, flourishing communities, and related systems-thinking-oriented approaches to architecture, settlements and the built environment. A wide range of contributions addressed themes, such as social impact in flourishing and change programs, health and population wellness, ecological design and bioregion development, human-scaled and regional economies, related sociotechnical and technological systems, etc. Yet, while the five earlier symposia did receive a number of papers that were focused on architecture and urban design, RSD6 was the first RSD symposium with a dedicated paper session on architecture and urban design. This special issue of Formakademisk collects together five of the papers that focus on architecture and urban design from a linked systems-thinking and design-thinking perspective. Each article pursues a distinct theme concerning the development of the profession, performance-oriented architecture and urban design, the role of exterior space in rethinking the architectural envelope, and questions of participation and community building. This breadth of themes in the selected articles indicates the increasingly deep impact of systems-thinking in the fields of architecture and urban design.
Echinoids from the Tesero Member (Werfen Formation) of the Dolomites (Italy): implications for extinction and survival of echinoids in the aftermath of the end-Permian mass extinction
Authors: Thompson Jeffrey R. , Posenato Renato , Bottjer David J. , Petsios Elizabeth
Published: August 2019

The end-Permian mass extinction (∼252 Ma) was responsible for high rates of extinction and evolutionary bottlenecks in a number of animal groups. Echinoids, or sea urchins, were no exception, and the Permian to Triassic represents one of the most significant intervals of time in their macroevolutionary history. The extinction event was responsible for significant turnover, with the Permian–Triassic representing the transition from stem group echinoid-dominated faunas in the Palaeozoic to Mesozoic faunas dominated by crown group echinoids. This turnover is well-known, however, the environmental and taxonomic distribution of echinoids during the latest Permian and Early Triassic is not. Here we report on an echinoid fauna from the Tesero Member, Werfen Formation (latest Permian to Early Triassic) of the Dolomites (northern Italy). The fauna is largely known from disarticulated ossicles, but consists of both stem group taxa, and a new species of crown group echinoid,Eotiaris teseroensisn. sp. That these stem group echinoids were present in the Tesero Member indicates that stem group echinoids did not go extinct in the Dolomites coincident with the onset of extinction, further supporting other recent work indicating that stem group echinoids survived the end-Permian extinction. Furthermore, the presence ofEotiarisacross a number of differing palaeoenvironments in the Early Triassic may have had implications for the survival of cidaroid echinoids during the extinction event.
Age, growth, reproduction and management of Southwestern Atlantic’s largest and endangered herbivorous reef fish, Scarus trispinosus Valenciennes, 1840
Authors: Freitas Matheus O. , Previero Marília , Leite Jonas R. , Francini-Filho Ronaldo B. , Minte-Vera Carolina V. , Moura Rodrigo L.
Published: August 2019

The Brazilian-endemic greenbeack parrotfish, Scarus trispinosus Valenciennes, 1840, is the largest herbivorous reef fish in the South Atlantic. Following the sharp decline of large carnivorous reef fishes, parrotfishes (Labridae: Scarinae) were progressively targeted by commercial fisheries in Brazil, resulting in a global population decline of 50% for S. trispinosus. Most of its remnant population is concentrated in the Abrolhos Bank, where the present study was conducted. We present novel information on age, growth and the reproductive cycle of S. trispinosus, based on 814 individuals obtained from commercial fisheries’ landings and scientific collections, between 2010 and 2013. Sex ratio was biased toward females (1:8), and spawning occurred year-round with discrete peaks in February-March and June-December. Increment analysis indicated annual deposition of growth rings in otoliths, which presented 1–22 rings. The asymptotic length at which growth is zero (L∞) was estimated from a Bayesian logistic regression at 85.28 cm, growth rate (K) at 0.14 year−1, and the theoretical age at zero size (t0) at 0.16. Subregional demographic structuring was detected, with predominance of slower-growing individuals in shallower inshore reefs and predominance of faster-growing and older individuals in deeper offshore sites. We demonstrate that S. trispinosus is highly vulnerable to over-exploitation due to its large size, long live and slow-growth, and review the management measures proposed since its Red List assessment in 2012.
Sargassumblooms in the Caribbean alter the trophic structure of the sea urchinDiadema antillarum
Authors: Cabanillas-Terán Nancy , Hernández-Arana Héctor A. , Ruiz-Zárate Miguel-Ángel , Vega-Zepeda Alejandro , Sanchez-Gonzalez Alberto
Published: August 2019

The arrival of large masses of driftingSargassumsince 2011 has caused changes in the natural dynamics of Caribbean coastal ecosystems. In the summer of 2015, unprecedented and massive mats ofS. fluitansandS. natanshave been observed throughout the Mexican Caribbean including exceptional accumulations ashore. This study uses stable isotopes to assess the impact ofSargassumblooms on the trophic dynamics of theDiadema antillarumsea urchin, a keystone herbivore on many Caribbean reefs. Bayesian models were used to estimate the variations in the relative proportions of carbon and nitrogen of assimilated algal resources. At three lagoon reef sites, the niche breadth ofD. antillarumwas analysed and compared under massive influx of driftingSargassumspp. vs. no influx ofSargassumblooms. The effects of the leachates generated by the decomposition ofSargassumled to hypoxic conditions on these reefs and reduced the taxonomic diversity of macroalgal food sources available toD. antillarum. Our trophic data support the hypothesis that processes of assimilation of carbon and nitrogen were modified underSargassumeffect. Isotopic signatures of macroalgae associated with the reef sites exhibited significantly lower values of δ15N altering the natural herbivory ofD.antillarum. The Stable Isotopes Analysis in R (SIAR) indicated that, under the influence ofSargassumblooms, certain algal resources (Dictyota,HalimedaandUdotea) were more assimilated due to a reduction in available algal resources. Despite being an abundant available resource, pelagicSargassumwas a negligible contributor to sea urchin diet. The Stable Isotope Bayesian Ellipses in R (SIBER) analysis displayed differences between sites, and suggests a reduction in trophic niche breadth, particularly in a protected reef lagoon. Our findings reveal thatSargassumblooms caused changes in trophic characteristics ofD. antillarumwith a negative impact by hypoxic conditions. These dynamics, coupled with the increase in organic matter in an oligotrophic system could lead to reduce coral reef ecosystem function.