bluuebunny/crossref_metadata_2025 huggingface dataset:
Biomechanical evaluation of a novel double rip-stop technique with medial row knots for rotator cuff repair
Authors: Wang Zhanwen , Li Hong , Long Zeling , Lin Subin , Thoreson Andrew R. , Moran Steven L. , Gingery Anne , Amadio Peter C. , Steinmann Scott P. , Zhao Chunfeng
Published: June 2020

Aims

Many biomechanical studies have shown that the weakest biomechanical point of a rotator cuff repair is the suture-tendon interface at the medial row. We developed a novel double rip-stop (DRS) technique to enhance the strength at the medial row for rotator cuff repair. The objective of this study was to evaluate the biomechanical properties of the DRS technique with the conventional suture-bridge (SB) technique and to evaluate the biomechanical performance of the DRS technique with medial row knots.

Methods

A total of 24 fresh-frozen porcine shoulders were used. The infraspinatus tendons were sharply dissected and randomly repaired by one of three techniques: SB repair (SB group), DRS repair (DRS group), and DRS with medial row knots repair (DRSK group). Specimens were tested to failure. In addition, 3 mm gap formation was measured and ultimate failure load, stiffness, and failure modes were recorded.

Results

The mean load to create a 3 mm gap formation in the DRSK and DRS groups was significantly higher than in the SB group. The DRSK group had the highest load to failure with a mean ultimate failure load of 395.0 N (SD 56.8) compared to the SB and DRS groups, which recorded 147.1 N (SD 34.3) and 285.9 N (SD 89.8), respectively (p < 0.001 for both). The DRS group showed a significantly higher mean failure load than the SB group (p = 0.006). Both the DRS and DRSK groups showed significantly higher mean stiffness than the SB group.

Conclusion

The biomechanical properties of the DRS technique were significantly improved compared to the SB technique. The DRS technique with medial row knots showed superior biomechanical performance than the DRS technique alone.
High-stability, high-beam-quality, and pulse-width-tunable 1319  nm laser system for VISAR applications in high-power laser facilities
Authors: Xiao Qi , Pan Xue , Guo Jiangtao , Wang Xiaoqin , Wang Jiangfeng , Jiang Xiuqing , Li Guoyang , Lu Xinghua , Wang Xiaochao , Zhou Shenlei , Li Xuechun
Published: June 2020

A high-energy, high-beam-quality, and pulse-width-tunable Nd:YAG laser system, pumped by vertical cavity surface emitting laser arrays and laser diodes, is demonstrated and applied to a velocity interferometry system for any reflector (VISAR) application in a high power laser facility. A multistage multipass amplification structure is used to fully extract the amplifier energy and obtain a high-energy pulse. The temporal waveform is compensated to provide a square waveform, with a flatness less than 8% (peak-to-peak value). The peak power is greater than 100 kW with a frequency-doubling efficiency of 25% for a 50 ns pulse width. The laser operates as a single shot with 1–5 Hz repetition frequency and 0.7% rms energy stability.
Germanium photodetector with distributed absorption regions
Authors: Zhou De , Chen Guanyu , Fu Sidong , Zuo Yan , Yu Yu
Published: June 2020

The bandwidth and saturation power of germanium photodetectors are two crucial parameters for implementing analog and microwave photonics circuits. In conventional schemes, it is hard to optimize these two parameters simultaneously, due to different requirements for the size of absorption region. We report the design and demonstration of a high-power and high-speed germanium photodetector with distributed absorption regions. In this distributed-absorption photodetector (DAPD), the junction is formed by a multiple absorption region (n-cell) on a mutual substrate, and the input light is split and fed into the n cells. A comprehensive theoretical model is developed, and the device bandwidth and power loss in aspect of the number of cells is discussed. Experimentally, 2-, 4- and 8-cell DAPDs are investigated, and the 2-cell scheme shows the superior performance with the radio-frequency saturation photocurrent as high as 16.1 mA and the 3 dB bandwidth as high as 50 GHz. Without changing the standard process in the silicon photonic foundry, the DAPD can be seamlessly integrated with other photonics devices, and it is very attractive to applications such as integrated microwave photonics systems.
Chromatically multi-focal optics based on micro-lens array design
Authors: Duan Fang , Zhu Wu-Le , Han Yanjun , Ju Bing-Feng , Beaucamp Anthony
Published: June 2020

CCD arrays encode color information via uniformly distributed red, green and blue pixels. Therefore, even a perfectly achromatic system projecting an image onto a CCD plane cannot possibly associate a single object point with the 3 or more discrete pixels encoding color content. Here, we propose and demonstrate a micro-lens array (MLA) design that simultaneously corrects chromatic aberrations and separates color channels to spatially distinct pixels. Starting from a commercially available aspheric condenser lens, methods to design and assess the performance of a few microns deep MLA etched on the convex optical surface are detailed. Actual fabrication is carried out by fluid jet polishing, with an optical form deviation of 0.24 µm rms. Finally, the MLA is assessed with a narrowly collimated beam containing two wavelengths, which produces distinct spots of diameter 10-15 µm as expected.
Integrated evanescent field detector for ultrafine particles—theory and concept
Authors: Buchberger Anton , Maierhofer Paul , Baumgart Marcus , Kraft Jochen , Bergmann Alexander
Published: June 2020

Recent studies on ultrafine particles (UFP), which are smaller than 100 nm, emphasized their hazardous potential to the human organism. They are comparable in size to typical nano-organisms such as viruses and can penetrate physiological barriers in a similar way. Currently, there are no low-cost and miniaturized detectors for UFP available. In our first experiments with an integrated evanescent field particle detector, we could already successfully detect single 200 nm polystyrene latex (PSL) spheres, although the implemented waveguide geometry was only rudimentary optimized with costly 3D simulations. We developed a fast and structured optimization model for waveguide geometry and operation wavelength of an integrated evanescent field particle detector in order to exploit its full potential for the detection of discrete analytes in the UFP size range. The optimization model is based on a modified formulation of Mie theory and its computational effort is reduced by a factor of 100 compared to 3D simulations. The optimization potential of the sensor response signal is demonstrated for several waveguide geometries that can be produced with established semiconductor fabrication technology at high production volumes and low costs. An optimized silicon nitride waveguide features sensor response signals that are about one order of magnitude higher compared to previous experiments, which pushes the limit of detection even further down to particle sizes below 100 nm. A small integrated evanescent field particle detector based on this optimized waveguide will be used for the first low-cost and miniaturized devices that can monitor the personal exposure to UFP.
Effects of environment variation of glycerol smoke particles on the persistence of linear and circular polarization
Authors: Zhang Su , Zhan Juntong , Fu Qiang , Duan Jin , Li Yingchao , Jiang Huilin
Published: June 2020

Environment variation is an important factor affecting the polarization propagation through the smoke. In this paper, we investigate the effects of the relative humidity and optical thickness on polarization transmission character, as well as the persistence of the linear and circular polarization of artificial smoke particles with simulations and experiments. We develop an environment modulation system to control the environment variation and measure the transmission degree of polarization (DOP). Correspondingly, by building the relation between the smoke filling time and optical thickness, as well as between the relative humidity and particle size and refractive index, we utilize the Monte Carlo program to track photon scattering process through varying the radius, refractive index and optical thickness. Both the simulation and the experimental results show that the DOP of both linear and circular polarizations are constantly decreased with the increasing of the optical thickness. However, at the same optical thickness, both the linear and circular polarization's persistence benefits with the increasing of the relative humidity. Moreover, circular polarization persists better than linear polarization in the larger optical thickness and the higher humidity environment under the wavelength of 532 nm. These works can verify the persistence of circular polarization and broaden the application range of polarized lights in a variable artificial smoke environment.
Discurso e Imagem, Ekphrasis e Retrato: Algumas Fontes Teóricas Antigas
Authors: Agnolon Alexandre
Published: June 2020

O artigo trata da relação entre a preceptística retórica antiga – particularmente doutrinas relacionadas às imagines – e a composição literária antiga; mediante exemplos de Progymnasmata, uma série de tratados escolares de autoria de vários rétores gregos, como Aftônio, Hermógenes e Teão, discute a construção de imagens verbais e a importância desses exercícios escolares para a formação de oradores e poetas; e, além disso, arrola outros exemplos, retirados da Retórica a Herênio, de autoria anônima, do Sobre a Invenção de Cícero, do Tratado da Imitação de Dionísio de Halicarnasso e das Instituições Oratórias de Quintiliano. O objetivo fundamental do artigo é demonstrar três pontos de fundamental importância: a) que a imagem, na chave do exemplum, demonstra a proximidade das artes no que se refere a seus processos de composição que, por seu turno, associam-se ao binômio imitação/emulação; b) que, como não eram simples ornato, as imagens verbais poderiam contribuir positivamente para a eficácia do discurso, uma vez que, geradoras de pathos, convertiam-se em estratégia elocutiva eficiente para a causa; e c) o uso recorrente da Ekphrasis e do Retrato na prática de prosadores e poetas helenísticos e romanos.
Estrategias narrativas en los libros XVIII y XIX de las Antigüedades judías de Flavio Josefo
Authors: Rodriguez Horrillo Miguel Angel
Published: June 2020

El estudio de los libros finales de las Antigüedades judías de Josefo se ha caracterizado por el análisis de las fuentes empleadas, en detrimento de análisis literarios. Por ello, además de faltos de unidad, han sido considerados un añadido sin mucha vinculación con el resto de la obra. Sin embargo, un análisis de las intervenciones autoriales del autor, muy numerosas en estos libros, así como de los recursos narrativos, permiten comprender que, por una parte, son libros que se rigen por los mismos esquemas que el resto de la obra y, por otra, son un buen ejemplo de narrativa moral historiográfica, de la que no faltan ejemplos en el género.
[Recensão a] BELLUCCI, Nikola, La storia della collezione egizia del Museo Archeologico Civico di Modena. Collana di studi di egittologia e civiltà copta, 3, Canterano, Aracne, 2018, 125 pp. ISBN: 9788825519105
Authors: Boglione Marcella
Published: June 2020

https://doi.org/10.14195/2183-1718_75_9
NorMAS-ML: Supporting the Modeling of Normative Multi-agent Systems
Authors: Freire Emmanuel Savio Silva , Cortés Mariela Inés , Da Rocha Júnior Robert Marinho , Gonçalves Ênyo José Tavares , De Lima Gustavo Augusto Campos
Published: June 2020

Context: A normative multi-agent system (NMAS) is composed of agents that their behavior is regulated by norms. The modeling of those elements (agents and norms) together at design time can be a good way for a complete understanding of their structure and behavior. Multi-agent system modeling language (MAS-ML) supports the representation of NMAS entities, but the support for concepts related to norms is somewhat limited. MAS-ML is founded in taming agents and objects (TAO) framework and has a support tool called the MAS-ML tool. Goal: The present work aims to present a UML-based modeling language called normative multi-agent system (NorMAS-ML) able to model the MAS main entities along with the static normative elements. Method: We extend the TAO adding normative concepts and spread out those concepts in two syntaxes of MAS-ML. Either abstract, adding or updating metaclasses and stereotypes or concrete, defining new graphic elements for representing the elements defined in the abstract syntax. Besides, we evolve the MAS-ML tool, considering the extension of MAS-ML by the model-driven approach. Results: NorMAS-ML, the new version of MAS-ML, allows a complete view of NMAS entities and has a support tool called NorMAS-ML tool. Beyond the definition of NorMAS-ML and its tool, we generate a new static diagram called “norm diagram” supported by the NorMAS-ML tool. In order to illustrate the syntax of NorMAS-ML, the entities of a conference management system and its norms are modeled jointly. Conclusion: NorMAS-ML can help software designers (i) to understand the properties and behavior of NMAS entities and (ii) to provide a software modeling following the stakeholders’ need and less complex for the development phase.
Stock Market Prediction Using Machine Learning(ML)Algorithms
Authors: Umer Muhammad , Awais Muhammad , Muzammul Muhammad
Published: June 2020

Stocks are possibly the most popular financial instrument invented for building wealth and are the centerpiece of any investment portfolio. The advances in trading technology has opened up the markets so that nowadays nearly anybody can own stocks. From last few decades, there seen explosive increase in the average person’s interest for stock market. In a financially explosive market, as the stock market, it is important to have a very accurate prediction of a future trend. Because of the financial crisis and recording profits, it is compulsory to have a secure prediction of the values of the stocks. Predicting a non-linear signal requires progressive algorithms of machine learning with help of Artificial Intelligence (AI).In our research, we are going to use Machine Learning Algorithm specially focus on Linear Regression (LR), Three month Moving Average(3MMA), Exponential Smoothing (ES) and Time Series Forecasting using MS Excel as best statistical tool for graph and tabular representation of prediction results. We obtained data from Yahoo Finance for Amazon (AMZN) stock, AAPL stock and GOOGLE stock after implementation LR we successfully predicted stock market trend for next month and also measured accuracy according to measurements.
Differential DNA methylation analysis across the promoter regions using methylated DNA immunoprecipitation sequencing profiling of porcine loin muscle
Authors: Chokeshaiusaha Kaj , Puthier Denis , Sananmuang Thanida , Olanratmanee Em-on , Nguyen Catherine , Kedkovid Roongtham
Published: June 2020

Background and Aim: Pork leanness and marbling are among the essential traits of consumer preference. To acquire knowledge about universal epigenetic regulations for improving breed selection, a meta-analysis of methylated DNA immunoprecipitation sequencing (MeDIP-seq) profiling data of mixed loin muscle types was performed in this study. Materials and Methods: MeDIP-seq profiling datasets of longissimus dorsi muscle and psoas major muscles from male and female pigs of Landrace and Tibetan breeds were preprocessed and aligned to the porcine genome. Analysis of differential methylated DNA regions (DMRs) between the breeds was performed by focusing on transcription start sites (TSSs) of known genes (–20,000-3000 bases from TSS). All associated genes were further reviewed for their functions and predicted for transcription factors (TF) possibly associated with their TSSs. Results: When the methylation levels of DMRs in TSS regions of Landrace breed were compared to those of Tibetan breed, 10 DMRs were hypomethylated (Landrace < Tibetan), and 19 DMRs were hypermethylated (Landrace > Tibetan), accordingly (p≤0.001). According to the reviews about gene functions, all associated genes were pieces of evidence for their roles in a variety of muscle and lipid metabolisms. Prediction of the binding TFs revealed the six most abundant binding TFs to such DMRs-associated TSS (p≤0.0001) as follows: ZNF384, Foxd3, IRF1, KLF9, EWSR1-FLI1, HES5, and TFAP2A. Conclusion: Common DMRs-associated TSS between the lean-type and the marbled-type loin muscles were identified in this study. Interestingly, the genes associated with such regions were strongly evidenced for their possible roles on the muscle trait characteristics by which further novel research topics could be focused on them in the future.
O Empreendedorismo e a Pequena Empresa no Contexto do Pós Covid-19: Há luz no Fim do Túnel
Authors: Nassif Vânia Maria Jorge , Armando Eduardo , La Falce Jefferson Lopes
Published: June 2020

Por mais que queiramos contribuir com empreendedores e com agentes de políticas públicas, frente ao caos vivenciado, oferecendo reflexões, recomendações e subsídios, ancorados em artigos científicos, ainda assim não temos nenhuma certeza, apenas otimismo e a crença de que teremos um futuro diferente.Nosso editorial anterior (v. 9, n. 2, de 2020) questionou, de modo singular, se os empreendedores e as pequenas empresas estavam preparados para as adversidades contextuais, propiciando uma reflexão à luz da pandemia do Covid-19 (Nassif, Corrêa, & Rossetto, 2020). Esse assunto continua em pauta, neste número, não como passado, mas presente e, de certa forma, prospectando o futuro. A crise está em curso, enquanto este texto está sendo escrito, em especial no Brasil, o que dificulta a localização de referências de como agir, em um momento tão difícil.Já vivenciamos outras crises, como a de 2008-2009, que nos trouxeram aprendizados e novos caminhos, visando a um futuro melhor, além de sugestões aos gestores de pequenas empresas e para agentes de políticas públicas. No enfrentamento ao Coronavírus, contudo, grande parte das pesquisas, realizadas em países desenvolvidos, como, por exemplo, Alemanha e Reino Unido, e mesmo em países emergentes, como a China, cuja classificação coincide com a do Brasil, as ações de enfrentamento apresentam diferenças substanciais.
Colonic Myeloid Sarcoma as a Rare Presentation of Relapsed Acute Myeloid Leukemia
Authors: Phatharacharukul Parkpoom , Fayad Nabil , Siwiec Robert
Published: June 2020

Myeloid sarcoma (MS), an extramedullary tumor of immature granulocytic cells, affects the gastrointestinal tract in approximately 10% of cases. MS involvement of the colon and rectum is considered to be extremely rare. We present a 36-year-old woman with acute myeloid leukemia and allogenic hematopoietic stem cell transplant 2 years before who was admitted with abdominal pain and nonmucous, nonbloody diarrhea. Colonoscopy revealed an ulcerated mass in the proximal colon, and biopsies showed MS compatible with acute myeloid leukemia relapse.
Aplicação da metodologia seis sigma para melhoria contínua da qualidade em uma indústria alimentícia
Authors: Silva Marcos Meurer , Camparotti Carlos Eduardo Soares , Enami Lorena Mazia , Guedes Karoline , Reis Beatriz Lavezo , Ordeno Thiago de Souza Borges
Published: June 2020

A competitividade entre as empresas exige que busquem por alternativas não só na garantia por produtos melhores aos clientes, mas também no que se refere ao processo produtivo sem desperdícios e elevados custos. O presente trabalho apresenta a implementação da metodologia Seis Sigma como meio de obtenção de melhores resultados na qualidade do processo produtivo e como uma mudança organizacional para com a resolução de problemas. A pesquisa foi realizada através de um estudo de caso, na qual foram coletados dados e informações pertinentes para a proposição e implantação de melhorias. O modelo DMAIC foi utilizado para a coordenação das etapas, assim como a utilização de ferramentas da qualidade dentro de cada uma das etapas. Destaca-se a obtenção de resultados satisfatórios com relação a eliminação do problema do peso do presunto fora da especificação, a elevação do nível sigma de 1,16 para 3,24, bem como, o conhecimento fornecido a todos os colaboradores do setor sobre a importância de realizar melhorias, ficam como um primeiro passo para a mudança do setor.
Ad futuram Regis memoriam. The conservative history of King Dinis' tomb: myths and reality
Authors: Rossi Vaio Giulia
Published: June 2020

Based on the research done so far, this paper aims at providing a brief excursus on the conservative history of King Dinis' tomb, a unicum in the Portuguese art scene of the first half of the 14th century and an emblematic piece of medieval European sculpture. On the other hand, this article calls into question some affirmations transmitted in an uncritical way over the years by Portuguese artistic historiography. Thus, notations, considerations and reasoning are formulated based on the visual and material evaluation of the artwork, as well as on the analysis of the historical context. The aim is to revisit the existing literature on the restoration of the monument and to quantify the interventions and damage suffered by the tomb, either as a result of natural disasters or by the hand of man.
Die Veränderung des alpinen Schutzhüttenbaus vom 19. bis zum 21. Jahrhundert
Authors: Hechenblaikner Verena
Published: June 2020

Changes in Alpine shelter construction from the 19th to the 21st century. A contribution to the environmental history of Western AustriaThe following paper provides a chronological overview of Alpine shelter construction in Western Austria from the 19th to the 21st century. It examines the ambivalent role the “Alpenverein” has played in this Alpine development and scrutinizes its changing attitude to nature conservation. In doing so, the paper argues that different shelter constructions and the discussions surrounding them might be regarded as indicators of a general change in environmental awareness.
Zwischen Zustimmung und Ablehnung: Hồ Chí Minh Antikolonialismus in der Komintern
Authors: Föger Katharina
Published: June 2020

Between approval and rejection: Hồ Chí Minh’s anticolonialism in the CominternThis paper discusses Hồ Chí Minh’s political conviction of Leninist Communist ideas with regard to anticolonialism. Moreover, it examines his position within the Comintern and the Indochinese Communist Party due to his specific interpretation of anticolonialism. It will be argued that reactions to his position depended on the predominant ideological principles.
Die Bukowina als eine Insel des „Deutschthums“ im Osten? Deutsche Kulturverbreitung und deren Wahrnehmung in Reiseberichten aus dem 19. Jahrhundert
Authors: Renner Alexander
Published: June 2020

The Bukovina as an island of “Deutschthum” in the East? The diffusion of German culture and its perception in travel reports from the 19th centuryThe following seminar paper outlines the description of the Bukovina, a part of the Habsburg Monarchy, in selected travel reports from the 19th century. It explains why the authors of these reports perceived the Bukovina as an island of German culture in Eastern Europe, which was otherwise labelled as barbaric and underdeveloped. It will be shown that the authors’ subjective observations are not compatible with up-to-date findings of historical research.
IN VITRO CYTOTOXICITY ANALYSIS AND SYNTHESIS OF BIOCIDAL ALLICIN/MT/MMA/PEG/POSS NANOCOMPOSITES FOR THE FOOD PACKAGING
Authors: BAYSAL Gülay
Published: June 2020

In this study, the new nanocomposites were synthesized using antibacterial and antioxidant curcumin (Cr) and allicin (Ac), the high mechanical strength montmorillonite clay (Mt) and biocompatible methylmethacrylate (MMA), polyethylene glycol (PEG) and polyocta-hedral oligomeric silsesquioxanes (POSS) polymers. Firstly, monomer 1 was synthesized by using Ag+-montmorillonite, the curcumin extract and POSS, then the synthesized monomer 1 was interacted with MMA and PEG polymers, and nanocomposites were synthesized. The synthesized nanocomposites were analyzed by using the methods of Fourier Transform Infrared Spectroscopy (FTIR), X-ray diffraction (XRD) and scanning electron microscopy (SEM). After this, the inhibition zones and the surface activity resistances of the nanocomposites were analyzed against the bacteria Escherichia coli (E. coli), Listeria monocytogenes (L. monocytogenes), Salmonella and Staphylococcus aureus (S.aureus) and carried out biocompatibility analysis. According to the analysis results, the nanocomposites have been found to have the strong antibacterial resistance and biocompatibility.
Application of Humic Acid Isolated From Kalimatan Peat Soil Modifying Magnetite for Recovery of Gold
Authors: Rahmayanti Maya , Abdillah Guliston , Santosa Sri Juari , Sutarno Sutarno
Published: June 2020

Humic acid modifying magnetite particles (Mag-HA) were developed for recovery of gold from chloride solution (HAuCl4). The Mag-HA particles were prepared by co-precipitation procedure with Fe(III) and Fe(II) chloride salts, sodium hydroxide, and humic acid. FTIR characterization for Mag-HA after modification indicated the presence of the specific absorption for functional groups of humic acid and Fe-O bonds, though with lower intensity. The Mag-HA particles exhibited a typical superparamagnetic characteristic with a saturation magnetization of 66.99 emu/g. The Mag-HA particles were applied for AuCl4- adsorption and results showed that the optimum adsorption of [AuCl4]- onto Mag-HA was found at pH 3. The adsorption kinetics can be described by a pseudo-second order equation and the adsorption isotherm of the Mag-HA particles agreed well with Langmuir adsorption equation. The maximum adsorbed amount of [AuCl4]- was 0.62 mmol/g and the XRD analysis confirms that the adsorption of Au(III) by Mag-HA was accompanied by the formation of elemental gold.
Kinetics of Sulfide Removal in Biofilter Employing Sulfur-Oxidizing Bacteria on Salak Fruit Seeds
Authors: Lestari Retno Ambarwati Sigit , Sediawan Wahyudi Budi , Sarto Sarto
Published: June 2020

Sulfur-oxidizing bacterias were isolated then grown on salak fruit seeds forming bio-film. Their performances in sulfide removal were experimentally observed. The salak fruit seeds were then used as packing material in a cylinder. Liquid containing 83 ppm of sodium sulfide was flown through the bed. Then the sulfide concentrations in the outlet at various times were analyzed. A set of simple kinetics model for the rate of the sulfide removal and the bacterial growth was proposed. The axial sulfide concentration gradient in the flowing liquid are assumed to be quasi-steady-state. Mean while the bio-film grows on the surface of the seeds and the sulfide oxidation takes place in the bio-film. Since the bio-film is very thin, the sulfide concentration in the bio-film is assumed to be uniform. The simultaneous ordinary differential equations obtained were then solved numerically using Runge-Kutta method. The accuracy of the model proposed was tested by comparing the calculation results using the model with the experimental data obtained. It turned out that the model proposed can be applied to quantitatively describe the removal of sulfide in liquid using bio-filter in packed bed. The values of the parameters were also obtained by curve-fitting.
COVID-19 (coronavirus): un peligro emergente que requiere abordaje en las organizaciones
Authors: Rodríguez-Rojas Yuber Liliana
Published: June 2020

El virus covid-19 surgió en diciembre en China (Zhao et al., 2020). Este es un tipo de coronavirus que se circula entre los murciélagos. De acuerdo con los reportes, apareció en el mercado de Wuhan (Trilla, 2020). La familia coronavirus puede causar resfriado común, el síndrome respiratorio agudo grave (también conocido como sars, por sus siglas en inglés), y el síndrome respiratorio de Oriente Medio (también conocido como mers, por sus siglas en inglés). Su capa externa tiene la forma de una corona; por esta razón recibe la denominación de coronavirus.
Diagnóstico de la implementación del sg-sst en las constructoras pioneras de Colombia
Authors: Bárrios Pájaro Yessica Idalides
Published: June 2020

En la búsqueda de una metodología gerencial ideal que permita especialmente a las constructoras de Colombia apropiarse de una herramienta eficaz que les garantice una adecuada implementación del Sistema de Gestión de la Seguridad y Salud en el Trabajo sg-sst en los proyectos que desarrollan, se establece el desarrollo de un diagnóstico basado en cuatro enfoques como primer objetivo de la investigación denominada “Metodología gerencial para la implementación del sg-sst en las firmas constructoras pioneras de Colombia”. La muestra de la investigación comprende las constructoras pioneras de Colombia, bajo una entrevista con los lineamientos de Yessica Idalides Barrios Pájaro 152 la ntc-iso 45001:2018 y la gerencia de proyectos, con el fin de extraer información que permita la consolidación de una metodología efectiva para la implementación del sg-sst.
La Iglesia que surge en el contexto urbano de la ciudad
Authors: Puentes Rodríguez Andrea
Published: June 2020

El deber de conocer el contexto específico en el que cada Iglesia se arraiga es una condición necesaria para la construcción de una acción pastoral y misionera coherente con los distintos cambios que moldean la sociedad actual. En particular modo con referencia al contexto urbano, tal acción debe responder a las exigencias de unidad en la complejidad, de solidaridad y de humanidad. El gran y rápido crecimiento de la ciudad ha hecho, por ejemplo, que la relación Iglesia-ciudad se haya diluido, que la parroquia como la vida religiosa en la ciudad pasara a ocupar un segundo lugar en la vida del ciudadano. El contexto en el que vive la Iglesia urbana, sin duda, influye en su modo de ser y de autocomprenderse, por tanto, tendrá que trabajar en organizar sus estructuras y en construir una praxis pastoral y misionera adecuada.
Estado actual de la transformación religiosa: libertad de religión-Estado, educación y laicismo en El Salvador
Authors: Hernández Monterrosa Antonia Larissa
Published: June 2020

El propósito de este artículo es exponer el estado actual de la transformación religiosa: libertad de religión-Estado, educación y laicismo de El Salvador desde la Colonia hasta la actualidad, brindando un panorama de esta relación en la sociedad salvadoreña y cómo con el transcurso de los años llegaron a establecerse otras religiones en el país. Para la recopilación de información, se consultó bibliografía relacionada con el tema. Como principal resultado, se encontró que en El Salvador existe la libertad de culto. Finalmente, se hace una reflexión sobre la importancia de la religión en la vida de las personas y por qué existe la necesidad de creer en un ser supremo que está al pendiente de las necesidades de su pueblo.
La función dialogal de la teología: condición de posibilidad para una cultura del encuentro
Authors: Espinosa Arce Juan Pablo
Published: June 2020

Este artículo reflexiona en torno a la función dialogal de la teología que comienza a asumirse como un elemento central en la teología con el Concilio Vaticano II. Será la constitución Gaudium et spes y el desarrollo teológico, magisterial y cultural inmediatamente posterior el que permitirá comprender cómo el diálogo constituye la condición de posibilidad para vivir, en términos de Francisco, una auténtica cultura del encuentro.
C-Terminal HA Tags Compromise Function and Exacerbate Phenotypes ofSaccharomyces cerevisiaeBloom’s Helicase Homolog Sgs1 SUMOylation-Associated Mutants
Authors: Cohen Matan , Lichten Michael
Published: June 2020

The Sgs1 helicase and Top3-Rmi1 decatenase form a complex that affects homologous recombination outcomes during the mitotic cell cycle and during meiosis. Previous studies have reported that Sgs1-Top3-Rmi1 function is regulated by SUMOylation that is catalyzed by the Smc5-Smc6-Mms21 complex. These studies used strains in which SGS1 was C-terminally tagged with three or six copies of a human influenza hemagglutinin-derived epitope tag (3HA and 6HA). They identified SGS1 mutants that affect its SUMOylation, which we will refer to as SGS1 SUMO-site mutants. In previous work, these mutants showed phenotypes consistent with substantial loss of Sgs1-Top3-Rmi1 function during the mitotic cell cycle. We find that the reported phenotypes are largely due to the presence of the HA epitope tags. Untagged SGS1 SUMO-site mutants show either wild-type or weak hypomorphic phenotypes, depending on the assay. These phenotypes are exacerbated by both 6HA and 3HA epitope tags in two different S. cerevisiae strain backgrounds. Importantly, a C-terminal 6HA tag confers strong hypomorphic or null phenotypes on an otherwise wild-type Sgs1 protein. Taken together, these results suggest that the HA epitope tags used in previous studies seriously compromise Sgs1 function. Furthermore, they raise the possibilities either that sufficient SUMOylation of the Sgs1-Top3-Rmi1 complex might still occur in the SUMO-site mutants isolated, or that Smc5-Smc6-Mms21-mediated SUMOylation plays a minor role in the regulation of Sgs1-Top3-Rmi1 during recombination.
Analysis of the Charles De Gaulle Aircraft Carrier Covid19 Epidemic: Infectivity and Fatality in the Young, Healthy, Active Population
Authors: Boretti Alberto
Published: June 2020

The case of the Charles De Gaulle aircraft carrier Covid19 outbreak indicates those young, healthy and active, apart from very few exceptions, do not get infected even if challenged, or are only very mild or asymptomatic if infected. As per April 20, 2020, of almost 2,000 people challenged, 1,081 got infected. Of the 1,081, only 24 ended up in a hospital. Of the 24, only 1 was reported in need of intensive care. As per April 29, 2020, only 5 were still in the hospital, and 1 was in intensive care. As per May 4, 2020, there were only 2 still in the hospital, 1 of them in need of intensive care.  On May 11, 2020, only the 1 previously in intensive care was still hospitalized but out of intensive care. Thus, infectivity and fatality are much lower than thought for the young, healthy, active population
TARGET2: Arbeitsweise, Konfliktpunkte und Reformvorschläge
Authors: Kuhn Britta , Hüfner Kevin
Published: June 2020

Die TARGET2-Forderungen der Deutschen Bundesbank erreichten 2018 mit fast 1 Billion Euro ein Allzeithoch. Volkswirte sind uneins, ob sie ausfallgefährdete Kredite oder unkritische Verrechnungsposten darstellen. Beispielhafte Transaktionen verdeutlichen die Kontroverse hinsichtlich Entstehung, ökonomischer Bedeutung, Risiken und Lösungsmöglichkeiten der Saldenproblematik.
Bewertung von Renditeimmobilien mit normierten und nicht normierten Verfahren
Authors: Korzmann Maximilian A. , Knuth Antonia , Sommer Friedrich , Berens Wolfgang
Published: June 2020

Die Fallstudie behandelt die Bewertung von Renditeimmobilien mit dem Ertragswertverfahren nach ImmoWertV als normiertem Verfahren sowie mit dem Discounted-Cashflow-Verfahren und der Methode des Vollständigen Finanzplans. Alle Verfahren werden am identischen Investitionsobjekt angewandt, so dass die Bewertungsergebnisse verglichen und auf ihre Sensitivität gegenüber Parameteränderungen untersucht werden können.
Einflüsse der Langfristfertigung auf Rechnungslegung und Controlling
Authors: Freidank Carl-Christian , Ceschinski Willi
Published: June 2020

Langfristige Fertigungsaufträge (Construction Contracts) stellen Verträge über die auftragsspezifische Erstellung aufeinander abgestimmter oder voneinander abhängiger Gegenstände dar, wobei die Fertigungsdauer sich auf mindestens zwei Geschäftsperioden erstreckt. Obwohl aus den Fertigungsverträgen i.d.R. kein Verwertungsrisiko für das Produktionsunternehmen resultiert, ist der Bereich der langfristigen Auftragsfertigung durch eine erhöhte Komplexität und Risikoanfälligkeit im Hinblick auf die (inter-)nationale Rechnungslegung und die Steuerung im Rahmen des Controllings gekennzeichnet. Dabei spielen vor allem Unsicherheiten eine entscheidende Rolle, die sich zum einen auf Neuerungen in der Rechnungslegung und zum anderen auf Risiken der anfallenden Kosten und Erlöse beziehen.
Assistenzsysteme in der Kommissionierung
Authors: Gerpott Torsten J. , Kurt Ahmet
Published: June 2020

Zur Unterstützung von manuellen Kommissionierungsprozessen werden derzeit in der Praxis unterschiedlichste Systeme eingesetzt. Der nachfolgende Beitrag systematisiert diese Assistenzsysteme. Außerdem analysiert er den Stand der empirischen Forschung zu deren Leistungsunterschieden im Hinblick auf Fehlerquoten, Kommissionierzeiten und von Aufgabenträgern empfundenen mentalen Beanspruchungen. Die Bestandsaufnahme zeigt, dass sich für digitale Assistenzlösungen nicht generell signifikante Vorsprünge bezüglich sämtlicher Leistungsdimensionen gegenüber der herkömmlichen papierbasierten Kommissionierung nachweisen lassen.
Die Fußball-WM in Katar als Reiseziel - Eine Herausforderung für CSR in der Tourismuswirtschaft
Authors: Neumann Michael
Published: June 2020

Die Vergabe der Fußball-Weltmeisterschaft 2022 nach Katar sorgt wegen Vorwürfen zu Menschenrechtsverletzungen weltweit für mediale Unruhe. Es stellt sich die Frage, ob die Durchführung eines solchen Mega-Events die schlechten Arbeitsbedingungen der dort eingesetzten Gastarbeiter unterstützt. Vielleicht kann aber auch den Problemen in Katar mithilfe von CSR-Maßnahmen der im Eventtourismus tätigen Unternehmen entgegengewirkt werden und die Lage der Gastarbeiter verbessert werden. Der Beitrag diskutiert auf Basis volkswirtschaftlicher Theorie die Hemmnisse für eine Verantwortungsübernahme westlicher Unternehmen aufgrund von kulturellen Unterschieden und Informationsasymmetrien.
Entscheidungen: Probleme oder Chancen?
Authors: Siebert Johannes Ulrich , Keeney Ralph L.
Published: June 2020

Entscheidungssituationen werden häufig als Probleme wahrgenommen, die es zu lösen gilt. Allerdings sind Entscheidungen die einzige Möglichkeit, Einfluss auf das zu nehmen, was wichtig ist. Dieser Beitrag grenzt Entscheidungsprobleme und Entscheidungschancen ab und zeigt auf, wie durch proaktives Entscheiden nicht nur die Wahrscheinlichkeit, mit Problemen konfrontiert zu werden, reduziert werden kann, sondern auch systematisch attraktive Entscheidungschancen identifiziert werden können.
Teamspiele
Authors: Hiller Tobias
Published: June 2020

In diesem Beitrag werden Teamspiele der kooperativen Spieltheorie eingeführt und mögliche Anwendungen dargestellt. Der Begriff „Team“ kann dabei weit gefasst werden, wie die in diesem Beitrag skizzierten Beispiele zeigen. Die erste Anwendung umfasst die Bestimmung der Wichtigkeit der einzelnen Karten in einem Pokerspiel. Die zweite Anwendung ist in der Welt des Mannschaftssports verankert und ermittelt die Bedeutung von einzelnen Spielern innerhalb ihrer Mannschaften. Abschließend nutzen wir Teamspiele, um den Heiratsmarkt zu modellieren und zu ermitteln, welche Strukturen bzw. Beziehungen auf diesem stabil sind.
New Space
Authors: Schiereck Dirk , Schiereck Christopher C.
Published: June 2020

Unterstützt von politischen Impulsen, technologischen Innovationen insbesondere in der Raketentechnik und einer zunehmenden Finanzierungsbereitschaft durch privates Venture Capital und staatliche Förderungen in verschiedenen Staaten hat sich in den letzten Jahren ein neues Segment im Bereich der Hochtechnologie gebildet, das New Space genannt wird. Dieses Segment wird im Beitrag vorgestellt.
Practice of applying visual advertising to Lithuanian contemporary art
Authors: Peseckienė Dovilė
Published: June 2020

Visual advertising has become common part of our daily life in the past few decades. It is not only used  for commercial, political or social purposes, but also for the implementation of artistic strategies. Specific constructed artworks, exhibitions and art projects situated in a special/unconventional public spaces (context or semiosphere) are used as a tool to seek more spectators and spread different messages with critical, ironical, social connotations which leads to the deeper communication with spectators. They cannot avoid them because the messages interrupt their minds accidentally passing by the streets and so involve in the active interaction process. Art full of advertising strategies criticises the consumerist society created by advertising, and provokes the subject to take on an active position with respect to raised problems, i.e., it acts in the ideological field of contemporary/postmodern art.
ЕКОНОМІЧНА ОСВІТА: ШЛЯХ ВІД ТЕОРІЇ ДО ПРАКТИКИ
Authors: ГРИЦЕНКО Андрій
Published: June 2020

Показано сучасний стан осмислення нових економічних реалій і роль у ньому економічної освіти. Обгрунтовано висновок про те, що головним змістом економічної освіти повинне бути формування економічного способу мислення, яке можливо забезпечити тільки на базі вивчення економічної теорії, що озброює людину способом розкриття сутності в єдності із зовнішніми формами прояву і дає тим самим інструмент для вибору адекватних заходів впливу на економічну дійсність з метою її перетворення в потрібному напрямі.Розкрито основні складові формування економічного мислення. Визначено дисципліни, що забезпечують якісний, кількісний і мірний аналіз економічних явищ і процесів, а також дисципліни логіко-історичного, предметно-функціонального і функціонально-рівневого циклів. Охарактеризовано взаємозв’язок економіки, фінансів і управління на мікро-, макро- та міжнародному рівнях їх функціонування.Запропоновано зміни до переліку галузей знань і спеціальностей, до змісту економічної освіти та до організації підготовки висококваліфікованих спеціалістів. Обгрунтовано виокремлення економіки з галузі знань «Соціальні та поведінкові науки» в особливу галузь і з’єднання її з фінансами та управлінням, які сьогодні належать до галузі знань «Управління і адміністрування». Внесено також пропозиції, спрямовані на вдосконалення змісту освіти в магістратурі та організації підготовки докторів філософії з економіки та докторів економічних наук.На основі викладеного зроблено висновок, що економічна освіта являє собою необхідну опосередковуючу ланку і шлях від економічної теорії, яка є способом мисленого освоєння економічної дійсності, до використання системи економічних категорій і законів як засобу визначення інструментів впливу на реальні економічні явища і процеси. Тому практична функція економічної теорії полягає, насамперед, в її здатності знаходити способи перетворення дійсності, адекватні економічній системі. І тільки на цій основі можуть бути сформульовані дійові та ефективні практичні рекомендації.
PENGOLAHAN UDANG VANNAMEI (Litopenaeus vannamei) KUPAS PDTO (PEELED DEVEINED TAIL ON) MASAK BEKU DI PT.PANCA MITRA MULTI PERDANA, SITUBONDO-JAWA TIMUR
Authors: Salampessy Randi B.S , Setyaningrum Setyaningrum
Published: June 2020

Udang sangat rawan dari serangan beberapa penyakit dan penggunaan antibiotik terlarang yang berdampak sangat buruk terhadap ekspor hasil perikanan. Penelitian ini bertujuan untuk mengetahui alur proses pengolahan udang vannamei masak beku, penerapan rantai dingin selama proses pengolahan, mutu bahan baku dan mutu produk, rendemen udang masak beku, produktivitas tenaga kerja, penerapan persyaratan kelayakan dasar, dan penanganan limbah. Penelitian menggunakan metode survey, dengan mengikuti secara langsung seluruh alur proses mulai dari penerimaan bahan baku hingga pemuatan. Metode analisa data yang digunakan adalah metode analisa deskriptif. Hasil penelitian menunjukkan bahwa alur proses pengolahan udang vannamei masak beku pada PT. Panca Mitra Multi Perdana (PT. PMMP) berbeda dengan alur proses pada SNI pengolahan udang masak beku, dan PT. Panca Mitra Multi Perdana telah menerapkan rantai dingin dengan baik sehingga suhu udang bahan baku 2,6 oC. Hasil pengujian mutu organoleptik bahan baku dan produk akhir adalah 8, untuk hasil uji mikrobiologi sesuai dengan SNI, dan not detected untuk hasil uji antibiotik. Hasil perhitungan rendemen pada proses pemotongan kepala adalah 70,51%, pengupasan 81,77%, dan pemasakan 87,38%. Hasil penghitungan produktivitas pada proses pemotongan kepala dan pengupasan sesuai standar perusahaan yaitu 5,67 kg/jam/orang. PT. Panca Mitra Multi Perdana telah menerapkan kelayakan dasar dengan baik. Penanganan limbah telah diterapkan dengan baik.
Konsep Bimbingan Konseling Anak Usia Dini Serta Alternatif Medianya Melalui Permainan Tradisional
Authors: Fernando Frendi
Published: June 2020

Guidance and counseling in early childhood institutions should not only be given to those who have problem behaviors, but must also be given to children who are in the process of growth and development. In early childhood, guidance and counseling is based on how to make the child's growth reach an optimal point, both physical motor, psychological and socio emotional. The process is mostly done by playing, singing, dancing and others. Traditional games can be used as a medium of guidance and counseling for early childhood. Types of traditional games are very good for children's development such as dexterity, creativity, social, and so on. In terms of benefits, traditional game is certainly very different from most modern games today, which do not use physical activity (silence) by staring at mobile screens and individualists, which of course results in the physical, and socio emotional development and physical growth of children not running optimally. For this reason, it is necessary to preserve the traditional game culture through creativity in order to preserve local wisdom as well as efforts to develop media for guidance and counseling for young children.
A note on contact metric manifolds
Authors: Deshmukh Sharief , Ishan Amira
Published: June 2020

In this paper, first we obtain several necessary and sufficient conditions for a contact metric manifold to be a K-contact manifold and then it is shown that if the Ricci operator of a complete K-contact manifold satisfies a condition like a Codazzi tensor, then it is necessarily a Sasakian manifold.