bluuebunny/crossref_metadata_2025 huggingface dataset:
Validation of Higher-Order Interactional Aerodynamics Simulations on Full Helicopter Configurations
Authors: Petermann Jannik , Jung Yong Su , Baeder James , Rauleder Jürgen
Published: September 2019

Time-accurate numerical predictions of the interactional aerodynamics between NASA's generic ROBIN fuselage and its four-bladed rotor were performed using the recently developed Reynolds-averaged Navier–Stokes solver HAMSTR. Two stencil-based reconstruction schemes (MUSCL, WENO),
a second-order temporal accuracy, and the Spalart–Allmaras turbulence model were used. Three-dimensional volume meshes were created in a robust manner from two-dimensional unstructured surface grids using Hamiltonian paths and strands on nearbody domains. Grid connectivity was established
between nearbody and background domains in an overset fashion. Two previously researched operational conditions were reproduced, i. e., a near-hover case and a medium-speed forward flight case at an advance ratio of 0.151. The results were compared with various experimental and numerical references
and were found to be in good agreement with both. The comparison included the analysis of the rotor wake structure, tip-vortex trajectories, steady and dynamic fuselage pressure distributions in longitudinal and lateral directions, and rotor inflow predictions.
Case Study
Authors: Low Adrian , Wong Isabella
Published: September 2019

Stress is associated with negative outcomes and we all make effort to avoid it. Workplace stress is associated with poor performance, and organizations desire optimal performance from employees. In this case study, the researcher utilizes a heart rate variability biofeedback (HRVB) tool as a workplace stress intervention for his participant, a senior manager who works in a big company in Hong Kong. The researcher presents a review of each of the four sessions he has conducted with his participant. The participant was able to see directly how stressful thoughts and emotions can adversely affect his body. He was motivated to change from the visuals flaring up that he saw on the biofeedback. Stress reduction exercises (SREs) were used during the sessions, and the participant was able to profoundly shift his physiology. The present case demonstrated that emWave Pro Plus HeartMath tool can be used as an important HRVB and SRE tool in the future.
The Incremental Role of Cardiac Magnetic Resonance Imaging as Diagnostic and Prognostic Tool in Cardiovascular Diseases
Authors: Roghi Alberto , Pedrotti Patrizia
Published: September 2019

Cardiac Magnetic Resonance Imaging offers incremental value as diagnostic and prognostic tool in a wide range of cardiac diseases in front of the traditional non-invasive imaging techniques. Tissue characterization with and without non-nephrotoxic contrast-media offers the opportunity of precise assessment of myocardial fibrosis, edema and fatty infiltration. The quantitative assessment of myocardial mass, left and right ventricular volumes is considered a gold standard reference with important effects on clinical decision making and cost effectiveness ratio. The recent introduction of new sequences for mapping tissue resonance signal and myocardial strain will improve the diagnostic and prognostic accuracy for cardiovascular diseases.
Pasoli tradutor da Eneida de Virgílio
Authors: Heise Pedro Falleiros
Published: September 2019

Além de poeta, cineasta, dramaturgo e crítico da cultura, Pasolinifoi também tradutor. Traduziu principalmente poesia lírica, dramática eépica, de várias línguas diferentes. Dentre suas traduções destaca-se olongo trecho da abertura da Eneida. Apresentamos neste artigo algunsaspectos da discussão que Pasolini nos oferece sobre tradução, assimcomo uma análise de algumas de suas escolhas ao traduzir os versos daobra-prima de Virgílio.
CLEMENTS, Rebekah. A Cultural History of Translation in Early Modern Japan. Cambridge, UK: Cambridge University Press, 2015, 288 p.
Authors: Melo Jinnye Altamira de Paiva
Published: September 2019

CLEMENTS, Rebekah. A Cultural History of Translation in Early Modern Japan. Cambridge, UK: Cambridge University Press, 2015, 288 p.
Luhrmann, Baz. The Great Gatsby. EUA, 2013, 2h 23 min
Authors: Teixeira Karine
Published: September 2019

A resenha versa acerca das escolhas tradutórias feitas na adaptação fílmica realizada por Baz Luhrman, em 2013, da obra literária The Great Gatsby, publicada por F. Scott Fitzgerald em 1925. Trazendo considerações de estudiosos como Even-Zohar (1990), Xavier (2003), Lucas (2007), entre outros, de a modo a expor como o contexto histórico-social interfere no processo tradutório de uma obra para as telas.
DAVIS, Lydia. Nem vem. Tradução de Branca Vianna. São Paulo: Companhia das Letras, 2017. 126 p.
Authors: Freitas Mendes Marta
Published: September 2019

Nem vem (Companhia das Letras, 2017), traduzido por Vianna, é o terceiro livro da autora traduzido no Brasil. Publicado pela primeira vez em 2014, em Nova Iorque, pela editora Farrar, Straus & Giroux, é uma antologia de textos lançados anteriormente, com poucas alterações, em importantes periódicos, como Harper’s Magazine, The New York Times e The Paris Review. A norte-americana Lydia Davis, nascida em 1947, é uma escritora, tradutora e professora de escrita criativa da Universidade de Albany, NY.  Especialista na tradução da literatura francesa para o inglês, traduziu Flaubert, Proust e Jouve, além de ter ganhado o French-American Foundation Translation Prize de 2003, por sua tradução de No caminho de Swann, de Proust. Entre suas obras ficcionais estão o romance O fim da história (José Olympio, 2016) e quatro antologias de histórias curtas, dentre as quais está Tipos de perturbação (Companhia das Letras, 2013). Em 2013, ganhou o Man Booker Prize, pelo conjunto de sua obra. Davis é apontada como uma renovadora da prosa de língua inglesa e uma das precursoras da escrita de narrativas curtas (as chamadas flash fictions) e inclassificáveis, próximas da poesia e da reflexão metafísica. Branca Vianna é linguista, tradutora, intérprete e professora da PUC-Rio. Bacharel em Letras e especialista em Interpretação Simultânea (ambos pela PUC-Rio), mestre em Linguística (University College London) e mestre em Formação de Intérpretes (Université de Genève). Traduziu duas obras de Lydia Davis para a Companhia das Letras (Tipos de Perturbação e Nem vem).
Entrevista com Elizabeth Ramos
Authors: Pfau Monique
Published: September 2019

Entrevista com Elizabeth Ramos
Entrevistas a autores e tradutores do RS março-abril 2017
Authors: Petruccioli Daniele
Published: September 2019

Entrevistas a autores e tradutores do RS março-abril 2017
Por que a Teoria da Tradução é útil para os Tradutores?
Authors: Cândido Moura Willian Henrique , De Matos Morgana Aparecida , Christmann Fernanda
Published: September 2019

Este artigo levanta a questão da utilidade da teoria da tradução para a atividade prática dos tradutores. A utilidade da teoria é certamente um tema controverso que levou a um intenso debate entre os especialistas. Embora existam escolas e faculdades onde os estudos da Tradução e Interpretação são ministrados há mais de trinta anos, a teoria ainda provoca desconfiança não só entre os tradutores que não estudaram Tradução, mas também entre os estudantes e até entre os professores. Tal fato não deixa de surpreender se pensarmos que a teoria, entendida em sentido amplo, é parte essencial dos estudos superiores e está na base da nossa disciplina. Partindo de algumas leituras e da minha experiência como professor de Tradutologia na Universidade de Granada, pretendo responder à pergunta do título e a outras questões a ela relacionadas como: de qual teoria o tradutor precisa?, quais as relações entre teoria e prática da tradução? E para que serve a teoria da tradução?
Guinea
Authors:   International Monetary Fund. African Dept.
Published: September 2019

Guinea’s strong growth momentum continues. Real growth is estimated at
5.8 percent in 2018 and expected at about 6 percent in 2019–20. The social context
remains fragile. Social unrest, strikes and protests marred 2018. While strikes have subsided
so far in 2019, political and social tensions are intensifying due to delays in the legislative
elections and questions related to the 2020 presidential elections.
Republic of Mozambique
Authors:   Authorities
Published: September 2019

Diagnostic reports are prepared by member countries with assistance from staff of the IMF and in broad consultation with stakeholders. This document for the Republic of Mozambique is being made available on the IMF website by agreement of the member country as a service to users of the IMF website.
Mozambique’s economy is at a turning point, and efforts to address governance and corruption vulnerabilities can have a lasting positive impact. The current levels of public debt have caused us to take a hard look at our governance and anti-corruption framework and have prompted various reforms to address the vulnerabilities exposed in this framework. In general, the problems in our society, and specifically corruption, have been examined in detail recently and are clearly macro-critical.2 One study estimated the costs of corruption to Mozambique during the period 2002 to 2014 at up to USD 4.9 billion (approximately 30 percent of the 2014 GDP).3 The impact of these costs is widespread, affecting taxpayers, public service providers, the financial and private sector, as well as Mozambique’s international reputation.4 These costs are especially harmful at a time when our country has been hit by a series of shocks, notably the fall in commodity prices, drought, the withdrawal of donor budget support, and, more recently, Tropical Cyclones Idai and Kenneth. At the same time, Mozambique stands poised to reap significant revenues from natural resource reserves, and our duty as the government is to ensure the responsible stewardship of those funds for both current and future generations. By taking meaningful steps now to implement the governance and anti-corruption framework in an evenhanded, consistent, and effective manner, and to support efforts toward transparency and individual and institutional accountability, as the government, we can aim to achieve enduring results.
FIRE DETECTION BASED ON A SERIES OF THERMAL IMAGES AND POINT MEASUREMENTS: THE CASE STUDY OF COAL-WASTE DUMPS
Authors: Abramowicz A. , Chybiorz R.
Published: September 2019

Abstract. The development of mining areas is always associated with a huge amount of unused gangue. It is treated as waste that should be disposed of. Most often it is done by creating waste dumps. Unfortunately, in the case of hard coal, such treatments can be dangerous, because the remaining coal can self-heat, what then leads to ignition and fire. These fires are uncontrolled and significantly affect the environment and the health of residents. Areas at risk of fire should be properly secured and its thermal conditions monitored. There are currently many methods available for measuring temperature. The latest and also the most popular are pyrometric and remote sensing methods. For the purposes of analysis, fieldwork on the selected coal-waste dump in the Upper Silesian Coal Basin was made using pyrometric (point measurements) and remote sensing methods (thermal images). A series of photos and measurements were compared over time and space to catch change trends. Differences in the received data were identified. Studies have shown that using only one method helps identify a fire, but does not provide enough information about its structure. Comprehensive monitoring is the best solution.
Exploring the relationship between avalanche hazard and run list terrain choices at a helicopter skiing operation
Authors: Sterchi Reto , Haegeli Pascal , Mair Patrick
Published: September 2019

Abstract. While guides in mechanized skiing operations use a
well-established terrain selection process to limit their exposure to
avalanche hazard and keep the residual risk at an acceptable level, the
relationship between the open/closed status of runs and environmental
factors is complex and has so far only received limited attention from
research. Using a large dataset of over 25 000 operational run list codes
from a mechanized skiing operation, we applied a general linear mixed-effect model to explore the relationship between skiing terrain that is
deemed appropriate for guiding (i.e., status open) and avalanche hazard conditions. Our
results show that the magnitude of the effect of avalanche hazard on run
list codes depends on the type of terrain that is being assessed by the
guiding team. Ski runs in severe alpine terrain with steep lines through
large avalanche slopes are much more susceptible to increases in avalanche
hazard than less severe terrain. However, our results also highlight the
strong effects of recent skiing on the run coding and thus the importance of
prior first-hand experience. Expressing these relationships numerically
provides an important step towards the development of meaningful decision
aids, which can assist commercial operations to manage their avalanche risk
more effectively and efficiently.
The morphology of ice and liquid brine in an environmental scanning electron microscope: a study of the freezing methods
Authors: Vetráková Ľubica , Neděla Vilém , Runštuk Jiří , Heger Dominik
Published: September 2019

Abstract. The microstructure of polycrystalline ice with a threading solution of brine
controls its numerous characteristics, including the ice mechanical
properties, ice–atmosphere interactions, sea ice albedo, and (photo)chemical
behavior in and on the ice. Ice samples were previously prepared in laboratories
in order to study various facets of ice–impurity interactions and (photo)reactions
to model natural ice–impurity behavior. We examine the impact of the
freezing conditions and solute (CsCl used as a proxy for naturally occurring
salts) concentrations on the microscopic structure of ice samples via an
environmental scanning electron microscope. The method allows us to observe
the ice surfaces in detail, namely, the free ice, brine puddles,
brine-containing grain boundary grooves, individual ice crystals, and
imprints left by entrapped air bubbles at temperatures higher than
−25 ∘C. The amount of brine on the external surface is found
proportional to the solute concentration and is strongly dependent on the
sample preparation method. Time-lapse images in the condition of slight
sublimation reveal subsurface association of air bubbles with brine. With
rising temperatures (up to −14 ∘C), the brine surface coverage
increases to remain enhanced during the subsequent cooling and until the
final crystallization below the eutectic temperature. The ice
recrystallization dynamics identify the role of surface spikes in retarding
the ice boundaries' propagation (Zener pinning). The findings thus quantify
the amounts of brine exposed to incoming radiation, available for the gas
exchange, and influencing other mechanical and optical properties of ice.
The results have straightforward and indirect implications for artificially
prepared and naturally occurring salty ice, respectively.
Exploration of a College and Career Readiness Leadership Program for Urban Youth
Authors: Bates Samantha , Anderson-Butcher Dawn , Niewoehner-Green Jera , Provenzano John
Published: September 2019

Urban youth living in poverty are less socially and academically prepared to access postsecondary education compared to their more affluent peers. College and career readiness (CCR) programs traditionally focus on skill-building to assist with college and financial aid applications, test taking, and career exploration. The Youth Leadership Academy (YLA) program includes these components, but also incorporates positive youth development (PYD) and leadership skill development strategies to further prepare urban youth for college and career through internship, service, and leadership opportunities. Using a mixed methods approach, this study explored youth perceptions of the YLA, evaluating the influence of the program on youth outcomes and distilling what, if any, program design components contributed to their growth and learning. Qualitative findings suggest participation in the YLA was perceived to support growth in communication skills, social skills, readiness for leadership roles, and preparation and knowledge for future college and career opportunities. Additionally, quantitative results demonstrate positive, significant increases from pre- to post-program test in leadership, communication, problem-solving, and teamwork skills for youth. Program design components shown to support positive outcomes included positive relationships with peer and adults, skill-building sessions, and applied internship experiences. Findings suggest that PYD approaches with CCR and leadership skill development programming may promote positive social outcomes for vulnerable youth. Implications for intervention, practice, and future research are discussed.
CONSIDERAÇÕES SOBRE O DIREITO À MORADIA E A USUCAPIÃO EM ÁREAS AMBIENTALMENTE PROTEGIDAS
Authors: Freitas Vladimir Passos , Maciel Amanda Amorim , Passos de Freitas Mariana Alçmeida
Published: September 2019

A diversidade de recursos naturais do Brasil motivou o legislador a prever diversas espécies de proteção, destacando-se as unidades de conservação e as áreas de preservação permanente. Por sua vez, o crescimento da população, a migração campo cidade e as dificuldades de moradia resultam, por vezes, na ocupação das áreas protegidas. O direito à moradia e ao gozo de um ambiente ecologicamente equilibrado são assegurados aos brasileiros pela Constituição Federal.  O presente artigo tem por objetivo analisar a possibilidade de reconhecer-se a usucapião nas áreas ambientais protegidas e as dificuldades para avaliar qual direito deve prevalecer nos casos de conflito entre ambos.
POLÍTICAS PÚBLICAS SOBRE ABORTO NO URUGUAI E NO BRASIL
Authors: Vaserino Débora Karina Gonçalves , Borba Marchetto Patrícia
Published: September 2019

O objetivo deste trabalho é analisar as políticas públicas do Uruguai sobre a questão do aborto, mais especificamente a Lei n.º 18.987/2012 e o Decreto n.º 375/2012 e suas consequências. Além disso, faz-se uma análise das políticas públicas brasileiras sobre o tema e a atual discussão sobre a descriminalização do aborto na ADPF 442, bem como na criminalização de todas as hipóteses com a PEC 19/2015 do Senado e a PEC 181/15 da Câmara dos Deputados. Por questões metodológicas, esclarecemos que não se trata de um estudo comparativo, uma vez que não existe no Brasil nenhuma norma que regulamenta o aborto voluntário como no caso uruguaio e, portanto, não é possível realizar a comparação. Esta pesquisa é de revisão da literatura, com a exposição da política do Uruguai sobre o tema do aborto e a questão no Brasil atualmente para, ao final, tecer conclusões para aprimoramento das políticas públicas brasileiras com base na experiência bem-sucedida uruguaia.
A DEMARCAÇÃO DE TERRAS INDÍGENAS NO BRASIL E AS LIÇÕES DO MOVIMENTO CONSTITUCIONALISTA LATINO-AMERICANO INSURGENTE
Authors: Calgaro Cleide , Coimbra Diego , La Flor Martiane Jaques
Published: September 2019

O estudo ora apresentado demonstra uma análise acerca da demarcação de terras indígenas e sua correlação com o constitucionalismo latino-americano. Pretende-se com o presente trabalho apresentar os conceitos envolvidos, o histórico legislativo, bem como estabelecer uma necessária relação entre a problemática questão ambiental indígena e a tutela ambiental defendida por esse novo constitucionalismo. O método utilizado é o analítico-hermenêutico, no qual, através de pesquisa bibliográfica e documental será feita o exame científico do problema apresentado. Pode-se concluir, a partir do exposto, que o constitucionalismo latino-americano vem ao amparo e serve de justificativa para que as terras indígenas sejam adequadamente demarcadas no Brasil.
Developing Oral Linguistic performance and Alleviating Speaking Anxiety of EFL and AFL Learners: A Proposed Strategy
Authors: Abdelhalim Safaa M. , Alsalem Abeer S.
Published: September 2019

This study intends to demonstrate how oral performance measures such as accuracy, complexity and fluency can be distinctly targeted using the suggested strategy. Furthermore, the study provides insights into how such learners’ self-reflection-oriented learning based strategy could help in alleviating FL speaking anxiety. The study sample consisted of 30 female EFL and AFL students, divided into two experimental groups. The data were collected through two main instruments: Oral performance test (two parallel forms: English and Arabic) and a foreign language speaking anxiety scale. The performances of each group on the pre and post tests were contrasted and their scores on the three oral linguistic measures were correlated. The instructors’ written comments concerning participants’ performance were also taken into consideration. The results indicated general improvement in both groups, as the suggested strategy prompted students’ oral performance and speaking confidence. Integrating technology and appreciative inquiry in classroom teaching and learning process empowered students to identify their oral performance weaknesses and plan for overcoming them autonomously. The implications of the study are discussed and a number of recommendations are made to assist FL students in dealing with their speaking anxiety level.
Evaluation of Growth Parameters and Biochemical Markers of Corn Plants Under Saline Stress
Authors: Viana Ana Cláudia Graças Alves , Quemel Franciele Da Silva , Freitas Janyeli Dorini Silva de , Francisco João Paulo , Nolla Antonio , Lopes Ana Daniela
Published: September 2019

This study aimed to investigate the effect of salinity on growth parameters and oxidative stress markers in leaves and roots of two sweet corn genotypes: BR 427III, obtained from Embrapa Milho e Sorgo, and Tropical Plus®, a commercial hybrid. The genotypes were kept in 15-L pots with typical dystrophic red latosol soil, and irrigated with NaCl solution (0, 25, 50, 100, 150 and 300 mM). At 105 days after planting, the samples were collected, immediately frozen in liquid nitrogen, and stored at -80 ºC for posterior analyses.  After this period, it was verified that, while NaCl concentration increased, there was a decrease in leaf and root fresh and dry masses as well as in shot and root lengths of both evaluated genotypes. A decrease in the stem diameter of BR427III genotype plants and in the chlorophyll index of both genotypes was observed. Sodium accumulation in the root and leaves increased according to the stress severity; however, potassium content reduced in both roots and leaves. Proline content increased significantly in the leaves of both evaluated genotypes when exposed to higher concentrations of NaCl. On the other hand, malondialdehyde content decreased in leaves and root of Tropical Plus genotype, where an increase in electrolyte overflow from membrane damage caused by stress severity was observed.
Determination of Capital Structure of Public Companies in Indonesia
Authors: Handayani Anita , Santoso Rahmat Agus
Published: September 2019

Capital structure is definitely related to the company’s long-term expenditure. Capital structure compares long-term debt to own capital. Corporate funding policies can be obtained from internal and / or external companies. So the purpose of this study is to analyze the capital structure of public companies in Indonesia. In the process of determining capital structure determination using multiple linear regression statistics, the results of the study are Return On Assets, Total Asset Turnover, and Current Ratio have a negative influence on the capital structure of public companies in Indonesia. So it can be concluded that public companies in Indonesia use internal funds more than external capital because internal capital does not create a fixed burden for the company.
A Spatial Analysis of Health Disparities Associated with Antibiotic Resistant
Infections in Children Living in Atlanta (2002–2010)
Authors: Ali Fatima , Immergluck Lilly C. , Leong Traci , Waller Lance , Malhotra Khusdeep , Jerris Robert C. , Edelson Mike , Rust George S.
Published: September 2019

Background: Antibiotic resistant bacteria like community-onset methicillin
resistant Staphylococcus aureus (CO-MRSA) have continued to cause infections in children
at alarming rates and are associated with health disparities. Geospatial analyses of
individual and area level data can enhance disease surveillance and identify
socio-demographic and geographic indicators to explain CO-MRSA disease transmission
patterns and risks.Methods: A case control epidemiology approach was undertaken to
compare children with CO-MRSA to a noninfectious condition (unintentional traumatic
brain injury (uTBI)). In order to better understand the impact of place based risks in
developing these types of infections, data from electronic health records (EHR) were
obtained from CO-MRSA cases and compared to EHR data from controls (uTBI). US Census
data was used to determine area level data. Multi-level statistical models were
performed using risk factors determined a priori and geospatial analyses were conducted
and mapped.Results: From 2002–2010, 4,613 with CO-MRSA and 34,758 with uTBI were seen
from two pediatric hospitals in Atlanta, Georgia. Hispanic children had reduced odds of
infection; females and public health insurance were more likely to have CO-MRSA. Spatial
analyses indicate significant ‘hot spots’ for CO-MRSA and the overall spatial cluster
locations, differed between CO-MRSA cases and uTBI controls.Conclusions: Differences
exist in race, age, and type of health insurance between CO-MRSA cases compared to
noninfectious control group. Geographic clustering of cases is distinct from controls,
suggesting placed based factors impact risk for CO-MRSA infection.
Identifying Elements of Gender References, Persuasive Techniques and Social Interaction Associated with Political Discourse: The Case of Hillary Clinton
Authors: AlQahtani Hanaa Ali
Published: September 2019

Discourse is an important tool discussing social relations in the discursive patterns. A well-designed discourse can easily dominate people and can construct their perceptions. Therefore, discourse is critical in the political world when one uses it to communicate ideas and visions to the people. Therefore, the present study aims to identify the elements of gender references, persuasive techniques, and social interactions associated with political discourse of Hillary Clinton. The study has used the framework of conversation analysis for studying a total of three interviews and five debates of Hillary Clinton. The interviews and recording were extracted from YouTube and then transcribed and interpreted by converting them into text. The findings have revealed a significant use of persuasive techniques and social interaction in Clinton’s political discourse. The results also imply that using affiliation strategy, candidates can manipulate people. The study concludes that this strategy is more effective in representing oneself as truthful as compared to conventional narratives.
Critérios de sucesso e fatores de sucesso: é crítico distinguir o significado de ambos
Authors: Russo Rosária De Fátima Segger Macri , Silva Luciano Ferreira da
Published: September 2019

O objetivo deste editorial é diferenciar critério de sucesso de fator de sucesso, que são confundidos por muitos estudantes e praticantes. O conceito de sucesso e tipos de sucesso são discutidos aqui brevemente, com a descrição de alguns critérios, e depois com a apresentação de alguns fatores críticos de sucesso. Pretende-se deixar claro que fatores críticos de sucesso podem dificultar ou facilitar a obtenção de sucesso. Não obstante esse relevante aspecto, se faz necessário compreender que o sucesso depende da percepção de cada stakeholder, que pode ter uma expectativa distinta e variar ao longo do tempo, portanto devem ser definidos poucos e claros critérios para que o sucesso seja atingido e percebido.
Asymetryczna kratownica mostowa wykonana w technologii druku 3D
Authors: Kempski Karol
Published: September 2019

Druk 3D dokonał w ostatnim czasie rewolucji oraz rozwinął się, znajdując zastosowanie również w budownictwie, w szczególności przy budowie domów. Niniejsza praca badawcza przedstawia natomiast proces drukowania betonowego elementu nośnego, dotychczas nieanalizowanego w tej technologii. Kratownica mostowa o wymiarach 200 cm x 40 cm x 9 cm wykonana została z betonu bardzo wysokiej wytrzymałości, zbrojonego prętami polimerowymi z włókna szklanego. Została zniszczona w trzypunktowym teście zginania, a wyniki porównano z przyjętymi modelami w programach RFEM Dlubal oraz Autodesk Robot Structural Analysis. Ten wieloetapowy proces został zintegrowany z oprogramowaniem BIM, które było jądrem całego procesu. Rezultaty uzyskane przy użyciu oprogramowania analitycznego okazały się zbliżone do otrzymanych w wydrukowanym obiekcie, pomimo przyjęcia znacznych uproszczeń. Wysoki stopień skomplikowania procesu sprawia, że na tę chwilę jedyną i najrozsądniejszą techniką wydaje się prefabrykacja betonowych elementów nośnych.
Fertility and allergy: Is there a correlation?
Authors: Adamczak Rafał , Ukleja-Sokołowska Natalia , Bartuzi Zbigniew
Published: September 2019

Approximately 10% of couples have difficulties conceiving. Idiopathic infertility affects 10–15% of infertile couples. Some suspected causes of idiopathic infertility are lifestyle factors such as stress, diet, smoking, obesity, lack of physical exercise and alcohol consumption. At the same time, allergies and bronchial asthma are growing health problems in developed countries. Therefore, this study addresses the possible correlation between atopic diseases and fertility.
Several interesting cases of patients presenting symptoms of HSPH (human seminal plasma hypersensitivity) have been reported to date. In the majority of cases, allergy to semen is the IgE-dependent response to proteins contained in the seminal plasma. Observations indicating that patients presenting symptoms of HSPH are primarily allergic to allergens of dogs are particularly interesting. The structure of dog allergen Can f 5 is similar to the human PSA (55–60% similarity in the sequence of amino acids). This may explain the presence of IgE-dependent reactions following contact with semen during sexual intercourse in women allergic to dog fur.
This article presents the current state of knowledge on the phenomenon.
Review: The Navy’s First Enlisted Women: Patriotic Pioneers
Authors: Stilwell Kristine
Published: September 2019

That women served in every military conflict in the history of the United States is common knowledge—but that women performed duties other than nursing during the First World War may come as a surprise to some. Regina Akers, a historian with the Naval History and Heritage Command, describes the service of the more than eleven thousand women that enlisted in the Naval Costal Defense Reserve during the Great War in The Navy’s First Enlisted Women: Patriotic Pioneers. She also details the meaning of their contributions to the war effort both at home and overseas. By working as clerks, typists, stenographers, translators, cryptologists, messengers, and even designers of camouflage for ships, these women volunteers freed up men for sea duty and combat.
Effect of biomimetic material on stress distribution in mandibular molars restored with inlays: a three-dimensional finite element analysis
Authors: Zhu Junxin , Luo Danmei , Rong Qiguo , Wang Xiaoyan
Published: September 2019

Background

Although biomimetic material has become increasingly popular in dental cosmetology nowadays, it remains unclear how it would affect the restored teeth during chewing. It is necessary to study the influence of biomimetic material on stress distribution in the restored teeth.

Methods

Eight three-dimensional finite element (FE) models were constructed and divided into two groups. Group 1 included the FE model of intact molar, and the FE models of inlay-restored molars fabricated from IPS e.max CAD, Lava Ultimate and biomimetic materials individually. Enamel was considered a homogeneous material. Group 2 included the FE models of intact molar and molars restored with inlays using IPS e.max CAD, Lava Ultimate and biomimetic materials individually, considering enamel as an inhomogeneous material.

Results

In Group 1, compared with that in the intact molar, the maximum tensile stress (MTS) in the occlusal grooves decreased in the inlay-restored molars fabricated from IPS e.max CAD and was concentrated on the cavity floor at the buccal side in the inner dentin around inlay. When Lava Ultimate was selected, MTS decreased in the occlusal grooves and on the cavity floor but increased in the lateral walls. In the restored molar using biomimetic material, the MTS on the cavity floor was distributed more evenly than that in the molar using IPS e.max CAD, and no obvious changes were noted in the lateral walls. The same changes were observed in Group 2. No differences in the stress distribution pattern were noted among the FE models in Groups 1 and 2.

Conclusions

Molars restored with inlays fabricated from biomimetic material exhibit a more uniform stress distribution in the dentin around restoration. The consideration of enamel as a homogeneous tissue is acceptable for analyzing the maximum principal stress distribution in the inlay-restored molar.
Recent Advances in Enabling Technologies in 3D Printing for Precision Medicine
Authors: Prendergast Margaret E. , Burdick Jason A.
Published: September 2019

Advances in areas such as data analytics, genomics, and imaging have revealed individual patient complexities and exposed the inherent limitations of generic therapies for patient treatment. These observations have also fueled the development of precision medicine approaches, where therapies are tailored for the individual rather than the broad patient population. 3D printing is a field that intersects with precision medicine through the design of precision implants with patient‐directed shapes, structures, and materials or for the development of patient‐specific in vitro models that can be used for screening precision therapeutics. Toward their success, advances in 3D printing and biofabrication technologies are needed with enhanced resolution, complexity, reproducibility, and speed and that encompass a broad range of cells and materials. The overall goal of this progress report is to highlight recent advances in 3D printing technologies that are helping to enable advances important in precision medicine.
Lightweight Kevlar‐Reinforced Graphene Oxide Architectures with High Strength for Energy Storage
Authors: Sun Wanmei , Shah Smit A. , Lowery Joseph L. , Oh Ju Hyun , Lutkenhaus Jodie L. , Green Micah J.
Published: September 2019

A multifunctional supercapacitor based on reduced graphene oxide (rGO) hydrogels deposited onto Kevlar fibers and woven cloth is reported, which exhibits both excellent mechanical performance and electrochemical energy storage. The specific strength of rGO hydrogel–Kevlar fibers reaches 1.6 MPa m3 kg−1 and the specific capacitance is 57 F g−1 with 38.1% of rGO. Such high specific strength is comparable to one of the as‐received Kevlar fibers (2.0 MPa m3 kg−1), indicating that the gelation process does not harm the fibers. The gel‐state symmetric device based on rGO hydrogel–Kevlar cloth survives impact from a 9.1 N force from a falling metal ball as well as deformation during bending to 90°. The high specific strength is due to the Kevlar while the specific capacitance stems from the 3D interconnected macrostructure of rGO hydrogels. To demonstrate the combination of these properties, a multifunctional efficiency is introduced based on the geometric average of mechanical and energy storage properties as compared to epoxy and carbon aerogel supercapacitor, respectively. This metric predicts an optimum combination or properties at a volume ratio of Kevlar/rGO gel between 0.0008 and 0.35.
Printed 3D Electrode Arrays with Micrometer‐Scale Lateral Resolution for Extracellular Recording of Action Potentials
Authors: Grob Leroy , Yamamoto Hideaki , Zips Sabine , Rinklin Philipp , Hirano‐Iwata Ayumi , Wolfrum Bernhard
Published: September 2019

Current investigations on neuronal or cardiac tissues call for systems that can electrically monitor cellular activity in three dimensions as opposed to classical planar approaches. Typically the fabrication of such 3D microelectrode arrays (3D MEAs) relies on advanced cleanroom fabrication techniques. However, additive manufacturing is becoming an ever versatile alternative for rapid prototyping of novel sensor designs due to its low cost and material expense. Here, the possibility of fabricating high‐resolution 3D MEAs is demonstrated by using electrohydrodynamic inkjet printing. The height and aspect ratio of the 3D electrodes can be readily tuned by adjusting the printing conditions and number of deposited ink droplets per electrode. The fabrication of pillar electrode arrays with electrode diameters of sintered structures below 3 µm is shown. The functionality of the array is confirmed using impedance spectroscopy and extracellular recordings of action potentials from HL‐1 cells.
Catalytic Metal Nanoparticles Embedded in Conductive Metal–Organic Frameworks for Chemiresistors: Highly Active and Conductive Porous Materials
Authors: Koo Won‐Tae , Kim Sang‐Joon , Jang Ji‐Soo , Kim Dong‐Ha , Kim Il‐Doo
Published: September 2019

Conductive porous materials having a high surface reactivity offer great promise for a broad range of applications. However, a general and scalable synthesis of such materials remains challenging. In this work, the facile synthesis of catalytic metal nanoparticles (NPs) embedded in 2D metal–organic frameworks (MOFs) is reported as highly active and conductive porous materials. After the assembly of 2D conductive MOFs (C‐MOFs), i.e., Cu3(hexahydroxytriphenylene)2 [Cu3(HHTP)2], Pd or Pt NPs are functionalized within the cavities of C‐MOFs by infiltration of metal ions and subsequent reduction. The unique structure of Cu3(HHTP)2 with a cavity size of 2 nm confines the bulk growth of metal NPs, resulting in ultra‐small (≈2 nm) and well‐dispersed metal NPs loaded in 2D C‐MOFs. The Pd or Pt NPs‐loaded Cu3(HHTP)2 exhibits remarkably improved NO2 sensing performance at room temperature due to the high reactivity of catalytic metal NPs and the high porosity of C‐MOFs. The catalytic effect of Pd and Pt NPs on NO2 sensing of Cu3(HHTP)2, in terms of reaction rate kinetics and activation energy, is demonstrated.
Electrically Stable Organic Permeable Base Transistors for Display Applications
Authors: Dollinger Felix , Iseke Henning , Guo Erjuan , Fischer Axel , Kleemann Hans , Leo Karl
Published: September 2019

Vertical organic permeable base transistors (OPBT) can drive large current densities of kA cm−2 and achieve record‐high transition frequencies of up to 40 MHz. They are therefore an interesting candidate for numerous applications, including the use in active‐matrix organic light emitting display (AMOLED) backplanes. However, the transistor characteristics are required to be stable against electrical stress. Here, the threshold voltage shifts under current‐ and voltage‐stress conditions over various temperatures and illumination conditions are investigated. OPBTs show excellent stability under the probed conditions, even at extended exposure to large on‐state currents of 3 A cm−2. The strongest shifts are observed at elevated temperatures, suggesting a temperature activation of the stress effect. On‐state current stress scales linearly with the current density, while off‐state stress is induced by the applied voltage. The effects of both kinds of stress are complementary and can compensate each other. It is found that the OPBT is perfectly suitable as a switching transistor in AMOLED displays.
Farmers' willingness to participate in a big data platform
Authors: Turland Madeline , Slade Peter
Published: September 2019

This paper uses a hypothetical choice experiment to examine farmers' willingness to share their farm data with a big data platform. We found that, on average, 36% of farmers are willing to join such a platform. Participation is affected by the characteristics of both the platform and the farmer. The organization operating the big data platform is particularly important: farmers are most willing to share their data with university researchers and least willing to share their data with government. Not surprisingly, farmers with strong privacy preferences are less likely to join a big data platform. However, we found that relatively small financial and nonfinancial benefits significantly increased participation, even among farmers who stated strong privacy preferences. [EconLit classifications: Q12, Q16, Q18]
Hydrops fetalis in a cohort of 3,137 stillbirths and second trimester miscarriages
Authors: McPherson Elizabeth
Published: September 2019

Hydrops fetalis was diagnosed in 277 (9%) of 3,137 fetuses referred to the Wisconsin Stillbirth Service Program (WiSSP) for etiologic evaluation of stillbirth or second trimester miscarriage. Hydrops was clinically recognized at delivery in only about half the cases, while the remainder were diagnosed at autopsy or during evaluation of records, photographs, and radiographs. The peak incidence of hydrops was at 20–28 weeks. Hydropic fetuses were also frequent before 20 weeks but became increasingly rare toward term. The most frequent identifiable underlying cause was chromosomal (29%), followed by other syndromes (14%), and more distantly by cardiac (6%) and other single system disorders. While the overall prevalence of hydrops and chromosomal causes was comparable to other autopsy series, the frequency of nonchromosomal syndromes was higher, reflecting increased attention to syndrome identification. Lethal multiple pterygium syndrome (LMPS) was identified retrospectively in 17 cases, accounting for 6% of all hydrops; 3/17 had a previous affected sib, emphasizing the importance of accurate diagnosis and counseling. Depending on the underlying cause, hydropic fetuses may be either small (if the cause is chromosomal or LMPS) or large (in cases with other syndromes or cardiac causes) for gestational age. The relatively large number in the “idiopathic” group in WiSSP (104/277; 38%) is probably due to variability of autopsies at local hospitals and limited laboratory data. Improved recognition of hydrops and testing directed at diagnosis of specific underlying causes can lead to improved counseling for families.
Phloroglucinol, a nutraceutical for IR‐induced cardiac damage in diabetic rats
Authors: Pranav Nayak B. , Ganesha K. R. , Minaz Nathani , Razdan Rema , Goswami Sumanta Kumar
Published: September 2019

Background

Myocardial injury due to ischemia‐reperfusion (IR) is aggravated in diabetes which is associated with oxidative stress. Alleviating oxidative stress via use of antioxidants has been shown to be effective at minimizing myocardial cell death and improving cardiac function. The aim of the present study was to evaluate the cardioprotective effect of phloroglucinol against myocardial reperfusion injury (MRI) in diabetic rats.

Methods

Diabetes was induced in female rats with streptozotocin (50 mg/kg). The diabetic rats were orally treated with phloroglucinol (100 and 200 mg/kg daily for 28 days). After treatment the hearts were isolated and mounted on a Langendorff apparatus. The hearts were subjected to 15 minutes of IR to induce myocardial damage. Cardiac functions including heart rate (HR), resting and developed tension, and rate of change of contraction (+dP/dtmax) were recorded. Cardiac injury biomarkers lactate dehydrogenase (LDH) and creatine kinase (CK‐MB) were measured in the heart perfusate. Levels of the antioxidant enzymes reduced glutathione (GSH) and malondialdehyde (MDA) were measured. Hematoxylin and eosin (H&E) staining was also performed.

Results

After IR injury, a decrease in HR and +dP/dtmax in hearts from diabetic rat was seen compared to healthy rat hearts, which was reversed by phloroglucinol treatment. Myocardial infarct size, measured by H&E staining, was increased in diabetic rats compared to healthy rats and an increase in the activity of LDH and CK‐MB in the heart perfusate in diabetic rats was decreased by phloroglucinol treatment. An increase in MDA levels and a decrease in levels of antioxidant enzymes were observed in diabetic rats, which was reversed with phloroglucinol treatment.

Conclusion

Phloroglucinol treatment has potential therapeutic promise in the treatment of MRI in diabetes.
Construction and characterization of nano iron complex ionophore for electrochemical determination of Fe(III) in pure and various real water samples
Authors: Ali Tamer Awad , Mahmoud Walaa H. , Mohamed Gehad G.
Published: September 2019

Electrochemical methods represent an important class of widely used techniques for the detection of metal ions. The unique chemical and physical properties of nanoparticles make them extremely suitable for designing new and improved sensing devices, especially electrochemical sensors and biosensors. This study focused on the synthesis of a nano‐Fe(III)–Sud complex and its characterization using various spectroscopic and analytical tools, optimized using the density functional theory method, screened for antibacterial activity and evaluated for possible binding to DNA using molecular docking study. Proceeding from the collected information, nano‐Fe(III)–Sud was used further for constructing carbon paste and screen‐printed ion‐selective electrodes. The proposed sensors were successfully applied for the determination of Fe(III) ions in various real and environmental water samples. Some texture analyses of the electrode surface were conducted using atomic force microscopy. At optimum values of various conditions, the proposed electrodes responded towards Fe(III) ions linearly in the range 2.5 × 10−9–1 × 10−2 and 1.0 × 10−8–1 × 10−2 M with slope of 19.73 ± 0.82 and 18.57 ± 0.32 mV decade−1 of Fe(III) ion concentration and detection limit of 2.5 × 10−9 and 1.0 × 10−8 M for Fe(III)–Sud‐SPE (electrode I) and Fe(III)–Sud‐CPE (electrode II), respectively. The electrode response is independent of pH in the range 2.0–7.0 and 2.5–7.0, with a fast response time (4 and 7 s) at 25°C for electrode I and electrode II, respectively. Moreover, the electrodes also showed high selectivity and long lifetime (more than 6 and 3 months for electrode I and electrode II, respectively). The electrodes showed good selectivity for Fe(III) ions among a wide variety of metal ions. The results obtained compared well with those obtained using atomic absorption spectrometry.
Sequential Two‐Step Stereoselective Amination of Allylic Alcohols through the Combination of Laccases and Amine Transaminases
Authors: Albarrán‐Velo Jesús , Lavandera Iván , Gotor‐Fernández Vicente
Published: September 2019

A sequential two‐step chemoenzymatic methodology for the stereoselective synthesis of (3E)‐4‐(het)arylbut‐3‐en‐2‐amines in a highly selective manner and under mild reaction conditions is described. The approach consists of oxidation of the corresponding racemic alcohol precursors by the use of a catalytic system made up of the laccase from Trametes versicolor and the oxy‐radical TEMPO, followed by the asymmetric reductive bio‐transamination of the corresponding ketone intermediates. Optimisation of the oxidation reaction, exhaustive amine transaminase screening for the bio‐transaminations and the compatibility of the two enzymatic reactions were studied in depth in search of a design of a compatible sequential cascade. This synthetic strategy was successful and the combinations of enzymes displayed a broad substrate scope, with 16 chiral amines being obtained in moderate to good isolated yields (29–75 %) and with excellent enantiomeric excess values (94 to >99 %). Interestingly, both amine enantiomers can be achieved, depending on the selectivity of the amine transaminase employed in the system.
Microsurgical excision of a compressive thoracic arachnoid cyst: Technical pearls
Authors: Glauser Gregory , Petrov Dmitriy , Choudhri Omar
Published: September 2019

The key clinical message of this case is that it is critical to differentiate between arachnoid cysts and spinal cord herniation. This is performed by evaluating the ventral dura to assure that it remains intact.