bluuebunny/crossref_metadata_2025 huggingface dataset:
Factores socioambientales que favorecen la conservación in situ de tubérculos alto andinos nativos en los cantones de Colta y Guamote en Chimborazo, Ecuador
Authors: Estrada Aguayo Verónica Soledad , Suárez-Duque David
Published: March 2020

Colta y Guamote son dos cantones de la provincia de Chimborazo que juntos conforman uno de los microcentros de mayor biodiversidad de tubérculos alto andinos nativos del Ecuador. El presente estudio se enfocó en establecer cuáles son los factores socioambientales que favorecen la conservación in situ de este tipo de agrobiodiversidad en esa zona. Las técnicas empleadas para el levantamiento de información fueron talleres participativos con los productores y entrevistas a profundidad tanto a productores como a informantes calificados. Los resultados demostraron que la conservación in situ de las variedades nativas estudiadas depende de cuatro factores: la disponibilidad de semilla, el manejo dado a lo largo del ciclo de cultivo, los usos dentro de las fincas y la influencia de la demanda del mercado. Se concluye que los productores prefieren conservar en sus parcelas aquellas variedades nativas que también son demandadas en el mercado y que las intervenciones a favor de la reintroducción de variedades nativas deben incluir la implementación de medidas de adaptación al cambio climático como factor transversal.
EVALUASI PENERAPAN SISTEM DAN PROSEDUR PENERBITAN SURAT PERINTAH MEMBAYAR UANG PERSEDIAAN PADA BADAN PENANGGULANGAN BENCANA DAERAH KOTA BITUNG
Authors: Syafira Astika Julia , Sabijono Harijanto , Weku Priscillia
Published: March 2020

The aim of this research is to know whether the system and procedures for issuing warrants paying the money supply at The Bitung Emergency Management Agency (BPBD), was suitable with The Regulation of the Minister of Home Affairs No. 21 of 2011 about regional financial management. This type of research is descriptive with qualitative approach. The data collecting techniques done were interview and documentation. The steps taken to analyze the acquired data was done is evaluate the application of the system and procedure for issuing warrants paying the money supply based on The Regulation Of The Minister Of Home Affairs No. 21 of 2011. The results showed that the system and procedures for issuing warrants paying the money supply at The Bitung Emergency Management Agency was suitable with The Regulation of the Minister of Home Affairs No. 21 of 2011. It is recommended that the leadership of The Bitung Emergency Management Agency improve and maintain the systems and procedures for the issuance of cash money supllies, especially the issuing warrants paying the money supply.
PENGARUH PENGEMBANGAN PRODUK USAHA, KERAGAMAN PRODUK EKONOMI KREATIF DAN ETIKA PELAKU USAHA PARIWISATA TERHADAP KEPUTUSAN BERKUNJUNG KE OBJEK WISATA DI KOTA BENGKULU
Authors: Puspita Veny
Published: March 2020

Tujuan dilakukannya penelitian ini untuk mengetahui “Pengaruh Pengembangan Produk Usaha, Keragaman Produk Ekonomi Kreatif dan Etika Pelaku usaha Pariwisata terhadap Keputusan Berkunjung ke Objek Wisata di Kota Bengkulu”. Jumlah responden dalam penelitian ini sebanyak 100 orang dengan menggunakan instrument penelitian berupa kuesioner yang hasil datanya dioleh menggunakan instrument SPSS dengan hasil regresi linier berganda Y = 1,196 + 0,243X1 + 0,331 X2+ 0,412 X3 , perhitungan korelasi berganda sebesar R = 0,736, berarti pengaruh sama X1 (Pengembangan Produk Usaha) X2 (Keragaman Produk Ekonomi Kreatif) dan X3 (Etika pelaku usaha) terhadap minat berkunjung ke Objek wisata di Kota Bengkulu memiliki hubungan yang kuat karena angka 0,736. Hasil dari uji koofisien determinasi (R²) sebesar 52,7 % sedangkan sisanya 47,3 % dipengaruhi oleh variabel-variabel lainnya yang tidak diteliti dalam penelitian ini. Hasil pengujian hipotesis dengan uji F, hipotesis yang dibuat membuktikan ada pengaruh. Dimana nilai signifikansi sebesar 0,000 < 0,05 dan Fhitung> Ftabel (37,793> 2,70). Berdasarkan hasil pengujian dengan uji t, hipotesis yang dibuat membuktikan ada pengaruh. Hasil pengujian untuk variabel X1(Pengembangan Produk usaha) menunjukkan thitung lebih besar dari ttabel (3,087 > 1,661) dan nilai signifikansi sebesar 0,003< 0,05. Variabel X2 (Keragaman Produk Ekonomi Kreatif) menunjukkan nilai thitung lebih besar dari ttabel (3,561 > 1,661) dan signifikansi sebesar 0,001< 0,05.Variabel X3 (Etika Pelaku usaha) menunjukkan nilai thitung lebih besar dari ttabel (3,328 > 1,661) dan nilai signifikansi sebesar 0,001< 0,05
STRATEGI PENGEMBANGAN PARIWISATA MANGROVE DI KAMPUNG SEJAHTERA, KOTA BENGKULU (Development Strategy Of Mangrove Tourism In Kampung Sejahtera Kota Bengkulu)
Authors: Afriani Sulisti , Yanti Rina Trisna
Published: March 2020

Kota Bengkulu merupakan salah satu kota yang memiliki keindahan alam yang sangat menarik, terutama wisata yang berkaitan dengan pantai, laut, sungai dan muara. Salah satuobejek wisata yang belakangan ini terlaris yang dikunjungi wisatawan adalah objek wisata hutan Mangrove di kampung Sejahtera Kecamatan Sumber Jaya Pulau Baai kota Bengkulu. Hanya dengan membayar sewa perahu wisata senilai Rp10 ribu per orang, maka wisatawan bisa puas mengelilingi 247,61 hektar hutan mangrove yang ada di lokasi tersebut. Hutang Mangrove merupakan salah satu pariwisata yang saat menjadi obejek kunjungan wisatawan ke kota Bengkulu.

Penelitian ini bertujuan untuk mengetahui a) untuk mengetahui bagaimana strategi pengembanngan pariwisata Mangrove di Kampung Sejahtera Kota Bengkulu, b) untuk mengetahui strategi manakah yang paling baik dalam penentuan pengembanngan pariwisata Mangrove di Kampung Sejahtera Kota Bengkulu. Jenis penelitian ini adalah penelitian deskriptif (Descriptive Research) yaitu penelitian yang bertujuan untuk memperoleh deskripsi data yang menggambarkan komposisi dan karakteristik unit penelitian. Penelitian ini termasuk jenis penelitian Deskriptif. Metode pengumpulan data dengan menggunakan kuesioner yang diberikan kepada 90 orang sampel, yang terdiri dari sampel eksterl 60 orang dan internal 30 orang. Metode analisis data yang digunakan dengan menggunakan SWOT.

Dari hasil penelitian maka diketahui bahwa rumusan kombinasi strategi matrik SWOT maka di ketahui bahwa titik pertemuan antara kekuatan, kelemahan, peluang dan ancaman berada berada pada kuadran II Pada kuadran ini berarti meskipun mengalami berbagai ancaman namun bisa memanfaatkan kekuatan, strategi yang harus diterapkan adalah memaksimalkan kekuatan yang ada untuk memanfaatkan peluang semaksimal mungkin. Hal ini dapat dilakukan dengan cara mendukung strategy diversifikasi. Dari matrik perencanaan kombinasi strategi kuantitatif menunjukkan bahwaUnived perlu memanfaatkan strategi WT yang mempunyai nilai sebesar 2,74, selanjutnya diikuti strategi ST = 3,023, WO = 2,6 dan SO = 2.90

Alternatif strategi pengembangan wisata hutan mangrove di Kampung Sejahtera Pulau Baai Kota Bengkulu adalah melakukan Pengembangan promosi hutan Mangrove, melakukan pengembangan SDM, melakukan pengembangan infrastruktur yang menunjang dan mengoptimalkan pelayanan dengan pengunjung.
Juego lúdico GetKanban Game para apoyar el proceso de enseñanza aprendizaje de la disciplina de gestión de proyectos de software en los estudiantes de TIC`S
Authors: Gómez E.J. Robles , Lara J.A. Flores , Neri J.C. Ontiveros
Published: March 2020

El juego getKanban es una herramienta para enseñar la metodología Kanban y SCRUM de una manera divertida. Facilita la enseñanza de la gestión de proyectos de software a través de un juego de mesa, donde los jugadores aprenden a formular estrategias de gestión de proyectos y las implementan para elaborar proyectos de calidad en tiempo y forma. El presente artículo muestra los resultados de la implementación del juego en una institución educativa de nivel superior, con alumnos de Ingeniería en Sistemas Computacionales de octavo semestre. Se puede apreciar que al utilizar este juego ayuda de manera efectiva a la enseñanza de Kanban y SCRUM, para la gestión de proyectos de software. Por lo cual se recomienda poder implementar este tipo de juegos como estrategia didáctica para la enseñanza/aprendizaje de Ingeniería de Software aplicada a la Gestión de Proyectos de Desarrollo de Software.

The game Kanban is a tool to teach the methodology in a fun way. It facilitates the teaching of software project management through where players learn to formulate strategies and implement them to develop quality projects on time Delivery. This article shows the results of the implementation of the game in an educational institution of higher level, with students of Computer Systems Engineering eighth semester. It can be seen that by using this game it helps in an effective way to teach Kanban for the management of software projects. Therefore, it is recommended to be able to implement this type of games as a didactic strategy for the teaching / learning of Software Engineering applied to the Management of Software Development Projects
Transversalidad de la Seguridad Informática en el Plan Curricular de TI en la Universidad del SABES
Authors: Orellana J. A. Negreros
Published: March 2020

Este artículo enfatiza la importancia seguridad informática, reconociendo el esfuerzo multinacional de los líderes y agencias de seguridad informática; buscando aumentar el interés de las Universidades en incluir los temas y conceptos relacionados para que los futuros profesionistas en tecnologías de la información (sin importar su especialización) a través del reconocimiento del tema por los organismos de acreditación.

This article emphasizes the importance of computer security, recognizing the multinational effort striving of IT security leaders and agencies; seeking to increase the interest of universities in including related topics and concepts for future professionals in information technology (regardless of their specialty) through recognition of the topic by the accreditationagency.
SIMPLIFIED WAYANG PERFORMANCE AS A MEDIUM OF TEACHING OF INDONESIAN LESSON FOR FOREIGN SPEAKER (BIPA) IN ISLAMIC UNIVERSITY (PTKI) IN FACING INDUSTRY 4.0 REVOLUTION ERA
Authors: Isnaniah Siti
Published: March 2020

This paper is aimed to analyze how wayang can be used as a medium of teaching BIPA in PTKI in facing industry 4.0 revolution era. Wayang (shadow puppet) as learning media of BIPA can be applied in industry 4.0 revolution era in advanced level by using a simplified performance of wayang as a learning media. The method in this research was descriptive analytic method. The techniques of collecting the data included documentary techniques and content analysis. The data were analysed, described,  and concluded. The techniques of analysis data used Literature Based Thematic (LBT) and interactive model. LBT, a model of literature appreciation, is applied in learning the simplified wayang performance. This model will lead students to learn literature as a way of life. Students watch wayang performance in a film together in Indonesian language, then students discuss the good things or character education that need to be implemented or not in life, students are also asked to compare the characters each other, after that the students write the results of the discussion in Indonesian language and they will have a peer-review activity to evaluate their work.
Ekstramedüller Hematopoez Odakları İçeren Uterin Leiomyoma: Olgu Sunumu
Authors: AKYOL Sevda , ÖZ ATALAY Fatma , ATALAY Mehmet Aral
Published: March 2020

Ekstramedüller hematopoez, hematopoetik dokunun kemik iliği ve periferik kan dışındaki neoplastik olmayan proliferasyonudur. Ekstramedüller hematopoeze pek çok organ ve tümör içerisinde rastlanılabilmektedir. Dismenore ve metroraji şikayetleri ile hastanemize başvuran 37 yaşındaki hastaya radyolojik görüntülemelerde izlenen submukozal myom nedeniyle myomektomi uygulanmıştır. Materyalin mikroskobik incelemesinde, tümör hücrelerinin birbirini çaprazlayan demetler şeklinde düzenlenmiş iğsi hücrelerden oluştuğu görülmüştür. Morfolojik olarak leiomyoma benzeyen bu tümör, büyük büyütmede incelendiğinde, stromasında küçük odaklar halinde yerleşim gösteren, hiperkromatik nükleuslu, nükleus /sitoplazma oranları yüksek, değişik büyüklüklerde birkaç farklı hücre grubundan oluşan hücre topluluklarına rastlanmıştır. Uygulanan immünohistokimyasal çalışmalar sonucunda odaklardaki hücrelerden bazılarının glikoforin A, bazılarının ise myeloperoksidaz ile immünreaktivite gösterdiği görülmüştür. Morfolojik ve immünohistokimyasal boyamalar sonucunda bu hücre gruplarının eritroid ve myeloid seri öncülleri içeren ekstramedüller hematopoez alanları olduğu ortaya konmuş, olgu ekstramedüller hematopoez alanları içeren leiomyoma olarak raporlanmıştır. Leiomyoma, üreme çağındaki kadınlarda sık rastlanılan benign düz kas tümörü olmakla birlikte, literatür incelendiğinde, ekstramedüller hematopoez alanları içeren leiomyom olgusunun az sayıda olduğu görülmüştür.
Clinical Profile of Acute Myocardial Infarction at King Abdulaziz University Hospital in Jeddah, Saudi Arabia
Authors: Maryam A. Jabali Maryam A. , Nabalawi Rana A. Nabalawi , Alsahabi Ibtihal O. , Almutairi Maram F. , Alsannat Fatimah I. , Jahhaf Jana M. , Algarni Rahaf A.
Published: March 2020

Objectives: This study aimed to assess the clinical profile of myocardial infarction in a tertiary care hospital in Saudi Arabia, and to determine the differences in presentation, risk factors, complications, and mortality between old and young patients.

Methods: Retrospective analysis of demographic and clinical data of adult myocardial infarction patients treated in King Abdulaziz University Hospital between 2010 and 2018.

Results: A total of 543 acute myocardial infarction patients (79.4% males) were included in the analysis. There were 64 patients aged ≤ 45 years and 479 patients aged > 45 years. The most common presenting symptom was chest pain in both groups. Current smoking was the most common risk factor in the younger group, whereas diabetes mellitus and hypertension were the most common risk factors in the older group. On electrocardiography, ST-elevation myocardial infarction was more common in the younger group. Mitral regurgitation, followed by congestive heart failure, were the most common complications in both groups. The overall mortality rate was low, but it was higher in the older group.

Conclusion: Risk factors and electrocardiogram findings differ significantly between younger (≤ 45 years) and older (> 45 years) patients. Smoking cessation must be stressed in young adults. Population awareness regarding the modifiable risk factors of myocardial infarction could help in decreasing its incidence.
Psychology and the round table talks
Authors: Grzelak Janusz
Published: March 2020

Poland in 1988 was on the edge of economic, social and political collapse. The two antagonistic entities – the communist party and the government on one side and the Solidarity movement on the other - were each too weak to overcome the crisis by itself. Undertaking negotiations appeared to be the last chance to solve the crisis peacefully. There was a number of external circumstances and opportunities that supported undertaking the Talks, including Michail Gorbachev's perestroika in the East, Ronald Reagan's anti-communist policies in the West, the support of the Catholic Church and the support of the vast majority of Polish society. The whole Round Table story can be viewed as a transformation from a zero-sum game to a cooperative non zero-sum game with the solution close to a Pareto optimal solution. The processes included, among others: concentration on problems rather than people; building a mutual trust; creating the idea of the common good; and partitioning negotiations into many teams thereby creating a decision-making structure that was both hierarchical and flexible. After thirty years, both democracy and the rule of law are at stake again in Poland. Unfortunately, however, it does not seem that today’s socio-political situation is capable of fostering negotiation methods for solving the nation’s problems.
Examining the Round Table Talks from the perspective of the Needs-Based Model of Reconciliation: Observations and insights
Authors: Shnabel Nurit
Published: March 2020

This commentary analyzes the democratization process triggered by the Polish Round Table Talks using the framework of the Needs-Based Model of Reconciliation, which conceptualizes reconciliation as a social exchange transaction in which perpetrators gain moral-social acceptance, whereas victims gain power. I argue that the talks allowed the restoration of communists’ moral-social identity, and Solidarity’s power and voice. I further argue that to complete such a transaction, both parties must believe that they would gain more through compromise than through violence. They must also overcome the “magnitude gap”; namely the systematic discrepancy between victims’ vs. perpetrators’ estimation of the severity or immorality of the same transgressions or social arrangements. Finally, as is the case for any exchange transaction, people may question its benefits. When doing so, however, they might take the non-violent nature of the transition to democracy for granted – due to “the hindsight bias.” Taking into account that the alternatives were probably worse may contribute to undermining conspiracy theories about “dirty dealings” between the parties, and commemorating the legacy of the Round Table Talks as an inspiring moment in history.
Perceptions of shared morality as an important socio-psychological mechanism for finding the common ground
Authors: Čehajić-Clancy Sabina
Published: March 2020

When we think of human history, it is easy to conclude that violent conflicts are unavoidable. Furthermore, in remembering history, we usually recall violent times and are less likely to remember peaceful societal change. Given the way we remember our history, it is easy to lose sight of the existence of peaceful conflict resolutions or other positive societal changes. The Polish Round Table Talks (RT) that took place in 1989 at times of growing political and economic instabilities serve as an example of peaceful and effective negotiation between two opposing and, one might argue, exclusive ideologies. These talks resulted in an agreement between the Communist government of Poland and the opposition movement Solidarity and paved the road towards the present, democratic and independent Polish state. In this commentary I am going to extrapolate some important socio-psychological mechanisms in the light of contributions made by Janusz Reykowski and Janusz Grzelak - both social psychologists. More specifically, I would like to discuss a specific perception of the other negotiating partner that was activated, formed and maintained during the negotiation, which facilitated the successful outcome. I will argue that the perception of shared morality (perceptions of similarity between the in-group and the out-group on the dimension of morality) was an important socio-psychological mechanism that enabled a stream of other positive psychological processes such as development of trust, as well as cooperative and common-oriented goal tendencies.
The Subjective Experience of Pregnancy and the Expectations of Childbirth on a Medicalized World: a Qualitative Study
Authors: Brites Rute , Nunes Odete , Pires Monica , Hipólito João
Published: March 2020

Background: To become a mother represents, for many women, a challenging existential process. Women have to deal with countless changes and adaptations, which can be experienced as sources of imbalance but also as moments of personal enrichment.  Currently, this process is influenced by the medicalization of pregnancy and childbirth, which may have positive or negative consequences to the individual experiences of pregnancy and childbirth.Goals: This study aimed to deepen the understanding of the experience of pregnancy and expectations regarding childbirth in a group of women, in a context where pregnancy and childbirth are increasingly medicalized processes.Methods: In this qualitative study, we used semi-structured interviews to collect data regarding the experience of pregnancy and regarding expectations about childbirth in a sample of women (n = 37), recruited in health care centres or obstetric clinics by research assistants. The individual interviews took place at their homes. Data resulting from these interviews, focusing on the relationship with the health team, the partner and the unborn baby, and on the moment of childbirth, were analysed using ALCESTE software. Two senior researchers, psychologists, conducted the content analysis. Investigator triangulation was achieved through independent content analysis by each researcher and subsequent discussion and consensual interpretation.Results: Thirty-seven pregnant women were interviewed. Four classes emerged from the analysis: "Expectations about childbirth and baby health", “Significant relational experiences of the past”, "Mother-baby relationship process" and “Health care in pregnancy". Results emphasize the desire of future mothers to have a quick childbirth, without stress and with minimal suffering and anxiety. Despite these worries, women described a positive subjective experience of pregnancy and a feeling of security related to the knowledge they attribute to health professionals. Discussion: “Medicalization” seems to be perceived as positive and securing, with no mention to a sense of disempowerment or loss of control. Therefore, the existence of spaces for sharing disturbing experiences and expectations of childbirth is prophylactic,contributing to the creation of conditions that foster positive expectations and mitigate fears related to childbirth.
Una Nación extraviada en el tiempo. Porqué 1819 y no 1810 como inicio de la Independencia
Authors: Duarte Borrero Juan Fernando
Published: March 2020

20 de julio de 1810 y 7 de agosto de 1819 son las fechas que tradicionalmente se han asociado con el momento preciso de la Independencia de Colombia. Pero al margen de los intereses políticos, es fundamental recurrir a la investigación reciente para pasar de largo de estas discusiones y remitirse a lo que la evidencia nos muestra. El presente artículo, concebido más como un ensayo que como un artículo de profundización, ofrece un panorama histórico acerca de las características que ofrecían los regímenes que identificaron al llamado Antiguo Régimen en lo que hoy es el territorio colombiano. Sin ninguna pretensión de novedad, esboza en unas páginas más de dos siglos de historia e invita a reflexionar sobre el origen de una nación que parece no haber nacido todavía.
Metodología de microcréditos de la Cooperativa SMG para la expansión a nuevos mercados mejicanos
Authors: Cobián Puebla Aarón , Curiel Moreno José Armando
Published: March 2020

La Cooperativa SMG lleva más de 50 años ofreciendo servicios financieros en Jalisco, Méjico con la perspectiva de expandirse a otras plazas en Méjico, por lo que el objetivo resumido del trabajo fue fortalecer el producto de microcrédito de la mencionada Cooperativa, tanto desde el punto de vista comercial como de gestión de riesgos. Obteniéndose como resultado que el fortalecimiento del producto microcrédito aplicado en la sucursal Cancún, Ejido Alfredo Vladimir Bonfi del Municipio de Benito Juárez, Estado de Quintana Roo, a partir de la metodología diseñada compuesta por tres pasos: diagnóstico integral, definición de las oportunidades de mejoras del microcrédito en la cooperativa y propuesta de fortalecimiento. Esta investigación contribuyó a la inclusión social y financiera, empoderamiento económico de las mujeres de sectores excluidos y al fortalecimiento financiero de la Cooperativa.
Who writes the news? Authorship and gender representation in press coverage of the 2014 referendum on Scottish Independence
Authors: Patrick David
Published: March 2020

This paper engages with newspaper coverage of the 2014 Scottish independence referendum, with the primary focus being authorship of news and comment articles. Taking a predominantly quantitative approach, weekday coverage during August and September 2014 from eight major newspapers in Scotland was statistically analysed. The findings reveal several notable observations. First, it is observed that a large proportion of articles are published without an attributable author. Second, the findings reveal that both news and comment outputs in 2014 were dominated by a comparatively small number of individual journalists. Whilst the journalistic pool from this sample featured several hundred distinct journalists, more than half of all coverage was concentrated within the hands of only a few dozen people. Third, and most developed in this paper, is the consistent trend – across several variables – that women were marginalised within the news production process surrounding the 2014 referendum. With only a few exceptions, both news reporting and comment (including opinion, diaries and features) were dominated by male reporters; meaning that during a hugely important period of Scotland's political history, female voices and perspectives were regularly missing from the press coverage of what was seen by many as an unprecedented national conversation.
A GESTÃO DE PESSOAS NO SERVIÇO PÚBLICO
Authors: Sarno Carvalho João Francisco , Rodrigues Rita Lauane Alves
Published: March 2020

Com os fenômenos e avanços das últimas décadas, é perceptível que as organizações, tanto privadas quanto públicas, estão cada vez mais em busca de novas formas de gestão para alcançar resultados satisfatórios, atingir a missão institucional e com o intuito de melhorar o desempenho para o atendimento das necessidades dos clientes de qualidade. É notável que, para obter o sucesso das organizações modernas, é preciso muito investimento nas pessoas, com o aproveitamento e desenvolvimento do capital intelectual. No serviço público, a gestão de pessoas busca adequar a administração à realidade dos servidores públicos. O principal objetivo dessa pesquisa é analisar a gestão de pessoas no serviço público em uma organização do setor de educação localizada no Distrito Federal Como metodologia foi utilizada a pesquisa qualitativa, onde após a realização da pesquisa foram tabulados os dados e analisados. Para a realização da pesquisa foi utilizado o método de questionário. Atualmente, a necessidade e obtenção de servidores com boas formações, capacitações e motivados é essencial para os órgãos, pois, existe uma grande cobrança em relação à eficiência dos mesmos para uma sociedade que está cada vez mais consciente sobre o papel do Estado.
A Design for Qualification Framework for the Development of Additive Manufacturing Components—A Case Study from the Space Industry
Authors: Dordlofva Christo
Published: March 2020

Additive Manufacturing (AM) provides several benefits for aerospace companies in terms of efficient and innovative product development. However, due to the general lack of AM process understanding, engineers face many uncertainties related to product qualification during the design of AM components. The aim of this paper is to further the understanding of how to cope with the need to develop process understanding, while at the same time designing products that can be qualified. A qualitative action research study has been performed, using the development of an AM rocket engine turbine demonstrator as a case study. The results show that the qualification approach should be developed for the specific application, dependent on the AM knowledge within the organization. AM knowledge is not only linked to the AM process but to the complete AM process chain. Therefore, it is necessary to consider the manufacturing chain during design and to develop necessary knowledge concurrently with the product in order to define suitable requirements. The paper proposes a Design for Qualification framework, supported by six design tactics. The framework encourages proactive consideration for qualification and the capabilities of the AM process chain, as well as the continuous development of AM knowledge during product development.
Effect of Digestate on Soil Organic Carbon and Plant-Available Nutrient Content Compared to Cattle Slurry and Mineral Fertilization
Authors: Barłóg Przemysław , Hlisnikovský Lukáš , Kunzová Eva
Published: March 2020

Digestate contains many valuable nutrients, including nitrogen (N), phosphorus (P), and potassium (K); however, it is characterized by relatively little organic matter. The objective of this study was to assess the four-year impact of digestate (Dig) application, digestate + straw (Dig + St), cattle slurry (Csl), and mineral fertilization (NPK) on soil organic carbon (SOC), total nitrogen (TN), mineral N (Nmin), and the content of plant-available P and K. Fertilization did not have any significant influence on SOC, TN, and SOC/TN parameters. Yet, in comparison with control, there was an upward trend in the concentration of SOC and TN in the topsoil, where fertilizers were applied. In contrast to SOC and TN, fertilizer treatment significantly affected the content of P, K, and Nmin, and the differences depended on the soil depth and the fertilizer used. On average, the highest content of P was obtained in Csl treatment, but the highest content of K was observed in Dig + St. The effect of treatment on Nmin in spring was as follows: NPK = control < Csl = Dig + St < Dig. Straw plowing increased the bio-immobilization of N with digestate and, at the same time, lowered the content level of nitrates in soil.
Effects of Dietary Hemp Seed and Flaxseed on Growth Performance, Meat Fatty Acid Compositions, Liver Tocopherol Concentration and Bone Strength of Cockerels
Authors: Skřivan Miloš , Englmaierová Michaela , Taubner Tomáš , Skřivanová Eva
Published: March 2020

The aim of the study is to determine the effect of hemp seed (HS) of the nonpsychotropic variety Futura and extruded flaxseed (EF) in the diet of cockerels on cockerel growth performance, breast muscle and liver α- and γ-tocopherol concentrations, breast muscle fatty acid concentrations and tibia strength. Five hundred and forty one-day-old male Ross 308 cockerels are equally allocated into six groups. Each group has three replicates of 30 cockerels in pens with litter. The formulated diets are isoenergetic (the metabolisable energy ranged from 12.4 to 12.8 MJ/kg) and isonitrogenic (the protein concentration ranged from 209.7 to 210.9 g/kg) and provided ad libitum. During the experiment, which lasts 35 days, the control group is fed a diet without EF or HS. Rapeseed oil was the lipid source in the control diet. The diet for the second group contains EF at 60 g/kg, the diet for the third group contains HS at 40 g/kg, and the diets for the fourth to sixth groups contain HS and EF at 30 and 60 g/kg, 40 and 60 g/kg and 50 and 60 g/kg, respectively. At the end of the experiment, 15 cockerels of average weight are slaughtered per group, and the breast muscle, liver and tibia bone are dissected for chemical analyses. The all dietary combination of HS and EF increases (p < 0.001) cockerel body weight (2375–2493 g) more than HS alone (2174 g) or EF alone (2254 g). A similar finding is observed for the diet composition and tocopherol content in the liver, but the doses of HS required to achieve this effect are higher (40 and 50 g/kg). The tocopherol content in the breast muscle is not influenced by the diet. The dietary combination of 60 g/kg EF and 40 g/kg HS results in the most promising findings of the experiment, since it leads to the lowest n-6/n-3 polyunsaturated fatty acids ratio (p < 0.001; 1.75). Incorporation of HS into the diet increases cockerel tibia strength (p < 0.001), which is of great practical importance due to the frequent occurrence of limb fractures. To conclude, the dietary supplementation with 40 g/kg HS and 60 g/kg EF improves cockerel performance, meat and bone quality and deposition of α-tocopherol in the liver.
Effects of the Community Cats Program on Population Control, Migration and Welfare Status of Free-Roaming Cats in Tokyo, Japan
Authors: Mitsui Kana , Sato Shusuke , Kakuma Yoshie
Published: March 2020

The community cats program (CCP), which includes trap–neuter–return activities, has been promoted in Japan to reduce the population of free-roaming cats without harmful effects on their welfare. To ascertain the effects of the CCP, a two-year route census of free-roaming cats was conducted in an area with CCP and the other area without CCP in urban Tokyo, Japan. The estimated number of cats was lower in the CCP area than the non-CCP area, but there was no difference in the rate of decline in cat populations between areas. More cats emigrated or disappeared rather than immigrated in both areas in the second year and more males tended to immigrate into the CCP area. There was no difference in the behavior of cats between areas and among seasons. The proportion of cats with poor health was lower in the CCP area than the non-CCP area. These results suggest that the CCP may improve the welfare of free-roaming cats. As the effect of CCP was restrictive in reducing the population of free-roaming cats, the further promotion of neutering of cats may be necessary to reduce the population density of cats.
Is Caretta Caretta a Carrier of Antibiotic Resistance in the Mediterranean Sea?
Authors: Alduina Rosa , Gambino Delia , Presentato Alessandro , Gentile Antonino , Sucato Arianna , Savoca Dario , Filippello Serena , Visconti Giulia , Caracappa Giulia , Vicari Domenico , Arculeo Marco
Published: March 2020

Sea turtles can be considered a sentinel species for monitoring the health of marine ecosystems, acting, at the same time, as a carrier of microorganisms. Indeed, sea turtles can acquire the microbiota from their reproductive sites and feeding, contributing to the diffusion of antibiotic-resistant strains to uncontaminated environments. This study aims to unveil the presence of antibiotic-resistant bacteria in (i) loggerhead sea turtles stranded along the coast of Sicily (Mediterranean Sea), (ii) unhatched and/or hatched eggs, (iii) sand from the turtles’ nest and (iv) seawater. Forty-four bacterial strains were isolated and identified by conventional biochemical tests and 16S rDNA sequencing. The Gram-negative Aeromonas and Vibrio species were mainly found in sea turtles and seawater samples, respectively. Conversely, the Gram-positive Bacillus, Streptococcus, and Staphylococcus strains were mostly isolated from eggs and sand. The antimicrobial resistance profile of the isolates revealed that these strains were resistant to cefazolin (95.5%), streptomycin (43.2%), colistin and amoxicillin/clavulanic acid (34.1%). Moreover, metagenome analysis unveiled the presence of both antibiotic and heavy metal resistance genes, as well as the mobile element class 1 integron at an alarming percentage rate. Our results suggest that Caretta caretta could be considered a carrier of antibiotic-resistant genes.
Very Large-Eddy Simulations of the Flow Past an Oscillating Cylinder at a Subcritical Reynolds Number
Authors: Xiong Zhongying , Liu Xiaomin
Published: March 2020

This work focuses on flow past a circular cylinder at a subcritical Reynolds number. Although this classical study has been a concern for many years, it is still a challenging task due to the complexity of flow characteristics. In this paper, a high-efficiency very large-eddy simulation method is adopted and verified in order to handle the oscillating boundary. A series of numerical simulations are conducted to investigate the transient flow around the oscillating cylinder. The results show that the vortex shedding mode varies with an increase in the excitation amplitude and the excitation frequency. Vortex shedding is a lasting process under the condition of a low excitation amplitude that leads to irregular fluctuations of the lift and drag coefficients. For a vortex shedding mode that exhibits a strong vortex pair and a weak vortex pair or a weak single vortex, the temporal evolution of the lift coefficient of the oscillating cylinder shows irregular ”jumping” at a specific time per cycle corresponding to the shedding of the strong vortex pair. The vortex shedding mode and the frequency and time of the vortex shedding co-determine the temporal evolutions of the lift and drag coefficient.
Prediction of Pile Axial Bearing Capacity Using Artificial Neural Network and Random Forest
Authors: Pham Tuan Anh , Ly Hai-Bang , Tran Van Quan , Giap Loi Van , Vu Huong-Lan Thi , Duong Hong-Anh Thi
Published: March 2020

Axial bearing capacity of piles is the most important parameter in pile foundation design. In this paper, artificial neural network (ANN) and random forest (RF) algorithms were utilized to predict the ultimate axial bearing capacity of driven piles. An unprecedented database containing 2314 driven pile static load test reports were gathered, including the pile diameter, length of pile segments, natural ground elevation, pile top elevation, guide pile segment stop driving elevation, pile tip elevation, average standard penetration test (SPT) value along the embedded length of pile, and average SPT blow counts at the tip of pile as input variables, whereas the ultimate load on pile top was considered as output variable. The dataset was divided into the training (70%) and testing (30%) parts for the construction and validation phases, respectively. Various error criteria, namely mean absolute error (MAE), root mean squared error (RMSE), and the coefficient of determination (R2) were used to evaluate the performance of RF and ANN algorithms. In addition, the predicted results of pile load tests were compared with five empirical equations derived from the literature and with classical multi-variable regression. The results showed that RF outperformed ANN and other methods. Sensitivity analysis was conducted to reveal that the average SPT value and pile tip elevation were the most important factors in predicting the axial bearing capacity of piles.
Adaptive Performance Tuning for Voltage-Sourced Converters with Frequency Responses
Authors: Zhang Weichao , Yan Xiangwu , Huang Hanyan
Published: March 2020

Renewable generation brings both new energies and significant challenges to the evolving power system. To cope with the loss of inertia caused by inertialess power electronic interfaces (PEIs), the concept of the virtual synchronous generator (VSG) has been proposed. The PEIs under VSG control could mimic the external properties of the traditional synchronous generators. Therefore, the frequency stability of the entire system could be sustained against disturbances mainly caused by demand changes. Moreover, as the parameters in the emulation control processes are adjustable rather than fixed, the flexibility could be enhanced by proper tuning. This paper presents a parameter tuning method adaptive to the load deviations. First, the concept and implementation of the VSG algorithm performing an inertia response (IR) and primary frequency responses (PFR) are introduced. Then, the simplification of the transfer function of the dynamic system of the stand-alone VSG-PEI is completed according to the distributed poles and zeros. As a result, the performance indices during the IR and PFR stages are deduced by the inverse Laplace transformation. Then, the composite influences on the performances by different parameters (including the inertia constant, the speed droop, and the load deviations) are analyzed. Based on the composite influences and the time sequences, an adaptive parameter tuning method is presented. The feasibility of the proposed method is verified by simulation.
An Ensemble of Locally Reliable Cluster Solutions
Authors: Niu Huan , Khozouie Nasim , Parvin Hamid , Alinejad-Rokny Hamid , Beheshti Amin , Mahmoudi Mohammad Reza
Published: March 2020

Clustering ensemble indicates to an approach in which a number of (usually weak) base clusterings are performed and their consensus clustering is used as the final clustering. Knowing democratic decisions are better than dictatorial decisions, it seems clear and simple that ensemble (here, clustering ensemble) decisions are better than simple model (here, clustering) decisions. But it is not guaranteed that every ensemble is better than a simple model. An ensemble is considered to be a better ensemble if their members are valid or high-quality and if they participate according to their qualities in constructing consensus clustering. In this paper, we propose a clustering ensemble framework that uses a simple clustering algorithm based on kmedoids clustering algorithm. Our simple clustering algorithm guarantees that the discovered clusters are valid. From another point, it is also guaranteed that our clustering ensemble framework uses a mechanism to make use of each discovered cluster according to its quality. To do this mechanism an auxiliary ensemble named reference set is created by running several kmeans clustering algorithms.
A Novel Approach for Software Defect prediction Based on the Power Law Function
Authors: Ren Junhua , Liu Feng
Published: March 2020

Power law describes a common behavior in which a few factors play decisive roles in one thing. Most software defects occur in very few instances. In this study, we proposed a novel approach that adopts power law function characteristics for software defect prediction. The first step in this approach is to establish the power law function of the majority of metrics in a software system. Following this, the power law function’s maximal curvature value is applied as the threshold value for determining higher metric values. Furthermore, the total number of higher metric values is counted in each instance. Finally, the statistical data are clustered into different categories as defect-free and defect-prone instances. Case studies and a comparison were conducted based on twelve public datasets of Promise, SoftLab, and ReLink by using five different algorithms. The results indicate that the precision, recall, and F-measure values obtained by the proposed approach are the most optimal among the tested five algorithms, the average values of recall and F-measure were improved by 14.3% and 6.0%, respectively. Furthermore, the complexity of the proposed approach based on the power law function is O ( 2 n ) , which is the lowest among the tested five algorithms. The proposed approach is thus demonstrated to be feasible and highly efficient at software defect prediction with unlabeled datasets.
Multi-Segmental Motion in Foot during Counter-Movement Jump with Toe Manipulation
Authors: Xiang Liangliang , Mei Qichang , Xu Datao , Fernandez Justin , Gu Yaodong
Published: March 2020

Human toes are crucial for vertical jumping performance. The purpose of this study is to investigate the acute effect of hallux abduction manipulation on foot inter-segment kinematic alterations and plantar loading redistribution during the countermovement jump (CMJ). Thirteen participants were recruited to join in this experiment, for the collection of the foot inter-segment kinematics and plantar pressure data. During the take-off phase, the contact area presented a significant increase while the pressure-time integral decreased in the second metatarsal (M2), whilst the third metatarsal (M3) and fourth metatarsal (M4) decreased significantly in pressure-time integral with Toe-Manipulation (TM). During the landing phase, maximum force and peak pressure were smaller in the big toe (BT) after hallux abduction manipulation. HXFFA (hallux-forefoot angle) showed a greater pronation after manipulation in the frontal plane (0%–26% and 50%–100%) with p = 0.002 and p < 0.001. In the transverse plane, the smaller adductions were found during 62%–82% in take-off and 62%–91% in landing (p = 0.003 and p < 0.001). There was a redistributed plantar loading during the landing phase from the medial to lateral forefoot. However, a reduced hallux range of motion in the TM session was exhibited, compared to Non-Toe-Manipulation (NTM).
Upregulated Wnt-11 and miR-21 Expression Trigger Epithelial Mesenchymal Transition in Aggressive Prostate Cancer Cells
Authors: Arisan Elif Damla , Rencuzogullari Ozge , Freitas Ines Lua , Radzali Syanas , Keskin Buse , Kothari Archana , Warford Antony , Uysal-Onganer Pinar
Published: March 2020

Prostate cancer (PCa) is the second-leading cause of cancer-related death among men. microRNAs have been identified as having potential roles in tumorigenesis. An oncomir, miR-21, is commonly highly upregulated in many cancers, including PCa, and showed correlation with the Wnt-signaling axis to increase invasion. Wnt-11 is a developmentally regulated gene and has been found to be upregulated in PCa, but its mechanism is unknown. The present study aimed to investigate the roles of miR-21 and Wnt-11 in PCa in vivo and in vitro. First, different Gleason score PCa tissue samples were used; both miR-21 and Wnt-11 expressions correlate with high Gleason scores in PCa patient tissues. This data then was confirmed with formalin-fixed paraffin cell blocks using PCa cell lines LNCaP and PC3. Cell survival and colony formation studies proved that miR-21 involves in cells’ behaviors, as well as the epithelial-mesenchymal transition. Consistent with the previous data, silencing miR-21 led to significant inhibition of cellular invasiveness. Overall, these results suggest that miR-21 plays a significant role related to Wnt-11 in the pathophysiology of PCa.
Loss of Y-Chromosome during Male Breast Carcinogenesis
Authors: Agahozo Marie Colombe , Timmermans Mieke A. M. , Sleddens Hein F. B. M. , Foekens Renée , Trapman-Jansen Anita M. A. C. , Schröder Carolien P. , van Leeuwen-Stok Elise , Martens John W. M. , N. M. Dinjens Winand , van Deurzen Carolien H. M.
Published: March 2020

Loss of Y-chromosome (LOY) is associated with increased cancer mortality in males. The prevalence of LOY in male breast cancer (BC) is unknown. The aim of this study is to assess the presence and prognostic effect of LOY during male BC progression. We included male BC patients diagnosed between 1989 and 2009 (n = 796). A tissue microarray (TMA) was constructed to perform immunohistochemistry and fluorescent in situ hybridization (FISH), using an X and Y probe. We also performed this FISH on a selected number of patients using whole tissue slides to study LOY during progression from ductal carcinoma in situ (DCIS) to invasive BC. In total, LOY was present in 12.7% (n = 92) of cases, whereby LOY was associated with ER and PR negative tumors (p = 0.017 and p = 0.01). LOY was not associated with the outcome. Using whole slides including invasive BC and adjacent DCIS (n = 22), we detected a concordant LOY status between both components in 17 patients. In conclusion, LOY is an early event in male breast carcinogenesis, which generally starts at the DCIS stage and is associated with ER and PR negative tumors.
Hydrogenolysis of Glycerol on the ZrO2-TiO2 Supported Pt-WOx Catalyst
Authors: Xi Zhiwen , Hong Zhe , Huang Fangtao , Zhu Zhirong , Jia Wenzhi , Li Junhui
Published: March 2020

A series of Pt/WOx-ZrO2-TiO2 catalysts with different Ti/Zr molar ratios was prepared by an evaporation induced self-assembly method, and used to efficient hydrogenolysis of glycerol to 1-PO and 1,3-PDO. BET, XRD, Raman, TEM, XPS and Py-IR were employed to characterize the physicochemical properties of the catalysts. The structural and acidic properties of the catalysts were affected by the Ti/Zr ratio of the support ZrO2-TiO2. Two new crystalline phases of ZrTiO4 and Ti2ZrO6 and the amount of acid sites were detected in the Pt/WOx-ZrO2-TiO2 catalysts. 1-PO is dominant in all products of glycerol hydrogenolysis over the supported Pt-WOx catalysts, which is attributed to more Lewis acid sites on the catalyst surface. The Pt/WOx-ZrO2-TiO2 catalyst with a Ti/Zr ratio of 7/3 showed the highest 1,3-PDO yield (25.3%) and 1-PO yield (42.3%), due to its more acid sites including Brønsted and Lewis, and higher concentration of surface Pt0.