bluuebunny/crossref_metadata_2025 huggingface dataset:
Mechanism for Intramolecular Proton Transfer in the Isomerization of Hydroxyacetone: A Detailed Characterization Based on Reaction Force Analysis and the Bond Fragility Spectrum
Authors: Joseph Huiet , Derricotte Wallace
Published: March 2020

The mechanism of isomerization of hydroxyacetone to 2-hydroxypropanal is studied within the framework of reaction force analysis at the M06-2X/6-311++G(d,p) level of theory. Three unique pathways are considered: (i) a step-wise mechanism that proceeds through formation of the Z-isomer of their shared enediol intermediate, (ii) a step-wise mechanism that forms the E-isomer of the enediol, and (iii) a concerted pathway that bypasses the enediol intermediate. Energy calculations show that the concerted pathway has the lowest activation energy barrier at 45.7 kcal mol-1. The reaction force, chemical potential, and reaction electronic flux are calculated for each reaction to characterize electronic changes throughout the mechanism. The reaction force constant is calculated in order to investigate the synchronous/asynchronous nature of the concerted intramolecular proton transfers involved. Additional characterization of synchronicity is provided by calculating the bond fragility spectrum for each mechanism.
Fe-Catalyzed Conjunctive Cross-Couplings of Unactivated Alkenes with Grignard Reagents
Authors: Liu Lei , Lee Wes , Youshaw Cassandra R. , Yuan Mingbin , Geherty Michael B. , Zavalij Peter Y. , Gutierrez Osvaldo
Published: March 2020

The first iron-catalyzed three-component cross-coupling of unactivated olefins with alkyl halides and Grignard reagents is reported. The reaction operates under fast turnover frequency and tolerates a diverse range of sp2-hybridized nucleophiles, alkyl halides, and unactivated olefins bearing diverse functional groups to yield the desired 1,2-alkylarylated products with high regiocontrol. Further, we demonstrate that this protocol is amenable for the synthesis of new (hetero)carbocycles including tetrahydrofurans and pyrrolidines via a three-component radical cascade cyclization/arylation that forges three new C-C bonds.
CDKL3 promotes osteosarcoma progression by activating Akt/PKB
Authors: He Aina , Ma Lanjing , Huang Yujing , Zhang Haijiao , Duan Wei , Li Zexu , Fei Teng , Yuan Junqing , Wu Hao , Liu Liguo , Bai Yueqing , Dai Wentao , Wang Yonggang , Li Hongtao , Sun Yong , Wang Yaling , Wang Chunyan , Yuan Ting , Yang Qingcheng , Tian Songhai , Dong Min , Sheng Ren , Xiang Dongxi
Published: March 2020

Osteosarcoma (OS) is a primary malignant bone neoplasm with high frequencies of tumor metastasis and recurrence. Although the Akt/PKB signaling pathway is known to play key roles in tumorigenesis, the roles of cyclin-dependent kinase–like 3 (CDKL3) in OS progression remain largely elusive. We have demonstrated the high expression levels of CDKL3 in OS human specimens and comprehensively investigated the role of CDKL3 in promoting OS progression both in vitro and in vivo. We found that CDKL3 regulates Akt activation and its downstream effects, including cell growth and autophagy. The up-regulation of CDKL3 in OS specimens appeared to be associated with Akt activation and shorter overall patient survival (P = 0.003). Our findings identify CDKL3 as a critical regulator that stimulates OS progression by enhancing Akt activation. CDKL3 represents both a biomarker for OS prognosis, and a potential therapeutic target in precision medicine by targeting CDKL3 to treat Akt hyper-activated OS.
PENGARUH PENERAPAN MODEL DISCOVERY LEARNING TERHADAP KEMAMPUAN BERPIKIR KRITIS MUATAN IPA SISWA KELAS IV SD GUGUS DIPONEGORO
Authors: Aryani Yulita Dwi , Wasitohadi Wasitohadi
Published: March 2020

Tujuan penelitian ini adalah mengetahui pengaruh penerapan model discovery learning terhadap kemampuan berpikir kritis siswa SD. Metode penelitian ini menggunakan eksperimental-semu (Quasi Experimental Design) dengan Pre-test Post-test Non-equivalent Control Group Design dan menggunakan teknik  pengambilan sampel purpose sampling. Penelitian ini menggunakan analisis data Uji-t. Kesimpulan penelitian ini yaitu terdapat pengaruh yang signifikan terhadap kemampuan berpikir kritis siswa kelas IV SD dengan menggunakan model discovery learning.
IMPLEMENTASI PENGUATAN PENDIDIKAN KARAKTER BERBASIS LINGKUNGAN MASYARAKAT PADA SEKOLAH DASAR
Authors: Muttaqin Muhammad Fauzan , Hariyadi Slamet
Published: March 2020

Penelitian ini bertujuan mengkaji secara spesifik tentang implementasi penguatan pendidikan karakter(PPK) berbasis masyarakat pada SD di Kota Semarang. Penelitian yang digunakan metode deskriptifpendekatan kualitatif dengan desain penelitian studi kasus. Pengumpulan data pada penelitian inimenggunakan metode checklist, observasi, wawancara semi terstruktur dan studi dokumentasi. Analisis datadilakukan dengan model analisis interaktif. Teknik keabsahan data yang digunakan adalah triangulasiteknik dan sumber. Hasil penelitian menunjukkan bahwa implemntasi PPK berbasis masyarakat melaluipemanfaatan sumber pembelajaran yang terdapat pada lingkungan sekitar dengan bekerjasama ataukolaborasi dengan masyarakat melalui kegiatan pembelajaran berbasis cagar budaya, musium, dan sanggarseni seperti Kota Lama Semarang, Masjid Agung Jawa Tengah, taman budaya Raden Saleh, LawangSewu, dan musium Ronggowasito, kerjasama dengan seniman dan budayawan sekitar dalam latihanekstrakulikuler seni tari dan lukis; kelas inspirasi dengan mendatangkan narasumber tokoh profesionalseperti dokter, tentara, polisi untuk mengisi kegiatan pembelajaran dalam ruang kelas dan di luar ruangkelas; gerakan literasi berkolaborasi dengan, PERPUSDA, percetakan, toko buku; kerjasama dengan PTNdan PTS meliputi riset pembelajaran, pengembangan inovasi pembelajaran, evaluasi menejemen sekolah;kerjasama sekolah dan komunitas keagamaan berupa rebana dan BTQ.
The effect of the preheating on to properties of the wear resistant welds
Authors: Gucwa Marek , Winczek Jerzy , Mičian Miloš
Published: March 2020

Wear resistant welds are used in many industries when it is necessary to protect machine components and structures against wear caused by operating conditions. Often the main parameter determining the usefulness of these welds is high hardness reaching about 60HRC. In many cases, after the surfacing process, a mesh of cracks is formed in the surface layer, which can affect the durability of the hard-wearing layers used. The paper presents the analysis of the influence of preheating before welding up to 400 ° C on the properties of welds and its effect on the number of cracks in the surface layer. The use of preheating allowed to reduce the number of cracks in the surfacing to 1. The optimum heating temperature was 200 ° C, for which the number of cracks was reduced and the lowest wear was recorded.
Implementation of the Concept of a Repository for Automated Processing of Semi-Structural Data
Authors: Piech Mateusz , Rakoczy Bartosz , Dajda Jacek , Kisiel-Dorohinicki Marek
Published: March 2020

Semi-structural data tend to be problematic due to the sparsity of their attributes and due to the fact that, regardless of their type, they are immensely diverse. This means that data storage is a challenge, especially when the data contained within a relational database – often a strict requirement deﬁned in advance. In this paper, we present a thoroughly described concept of a repository that is capable of storing and processing semi-structural data. Based on this concept, we establish a database model comprising the architecture and the tools needed to search the data and build relevant processors. The processor described may assign roles and dispatch tasks between the users. We demonstrate how the capacities of this repository are capable of overcoming current limitations by creating a system for facilitated digitization of scientiﬁc resources. In addition, we show that the repository in question is suitable for general use, and, as such, may be adapted to any domains in which semi-structural data are processed, without any additional work required
Improved Signal Detection Techniques for QOSTBC System in Fast Fading Channel
Authors: Patra Jyoti P. , Singh Poonam
Published: March 2020

Most existing quasi-orthogonal space time Block coding (QO-STBC) schemes have been developed relying on the assumption that the channel is at or remains static during the length of the code word symbol periods to achieve an optimal antenna diversity gain. However, in time-selective fading channels, this assumption does not hold and causes intertransmit-antenna-interferences (ITAI). Therefore, the simple pairwise maximum likelihood decoding scheme is not sufficient to recover original transmitted signals at the receiver side. To avoid the interferences, we have analyzed several signal detection schemes, namely zero forcing (ZF), two-step zero forcing (TS-ZF), minimum mean square error (MMSE), zero forcing - interference cancelation - decision feedback equalizer (ZF-IC-DFE) and minimum mean square error - interference cancelation { decision feedback equalizer (MMSE-IC-DFE). We have proposed two efficient iterative signal detection schemes, namely zero forcing - iterative interference cancelation - zero forcing { decision feedback equalization (ZF-IIC-ZF-DFE) and minimum mean square error - parallel interference cancelation - zero forcing – decision feedback equalization (MMSE-IIC-ZF-DFE). The simulation results show that these two proposed detection schemes significantly outperform all conventional methods for QOSTBC system over time selective channel.
Two Extensions of Trust Management Languages
Authors: Felkner Anna
Published: March 2020

This article is focused on the family of role-based trust management languages (RT). Trust management languages are a useful method of representing security credentials and policies in large distributed access control mechanisms. They provide sets of credentials that are assigned to individual roles performed by the speciﬁc entities. These credentials provide relevant information about security policies issued by trusted authorities and deﬁne user permissions. RT languages describe the individual entities and the roles that these entities play in a given environment. A set of credentials representing a given security policy deﬁnes which entity has the necessary rights to access a speciﬁc resource and which entity does not have such rights. This study presents the results of research focusing on the potential of the family of RT languages. Its purpose is to show how security policies may be applied more widely by applying an inference system, and then using the extensions of the credentials, by taking into account time-related information or the conditions imposed with regard to the validity of such credentials. Each of these extensions can be used jointly or separately, oﬀering even a wider range of opportunities
Os desafios enfrentados pela equipe editorial do Journal of Venomous Animals and Toxins including Tropical Diseases na transição entre dois publishers de renome internacional
Authors: Cassaro Claudia Vilalva , Simionato Juliana Siani , Martins Selma de Lourdes Pires , Martins José Claudio Pires , Santos Lucilene Delazari , Ferreira Junior Rui Seabra , Barraviera Benedito
Published: March 2020

The Journal of Venomous Animals and Toxins, criado em 1995 no Centro de Estudos de Venenos e Animais Peçonhentos (CEVAP) da Universidade Estadual Paulista (UNESP), São Paulo, Brasil, foi a primeira revista digital brasileira. Em 1998 foi selecionada para integrar a base SciELO (Scientific Electronic Library Online), e em 2003, para se tornar mais abrangente, as Doenças Tropicais foram incluídas no seu escopo. Denominou-se então The Journal of Venomous Animals and Toxins including Tropical Diseases. Em 2006 foi selecionada para integrar duas Bases internacionais estratégicas: a Web of Science da Clarivate Analytics, que publica anualmente o Fator de Impacto, e a Scopus da Elsevier, que publica o Cites per Doc e o CiteScore. Como estes índices se estabilizaram até 2012 entre 0.30 e 0.50, o Conselho Editorial decidiu estabelecer parceria com a BioMed Central Springer-Nature, um publisher comercial de acesso aberto e de renome internacional. Houve, nesta ocasião, uma reestruturação importante do periódico, incluindo a publicação em fluxo contínuo e a indexação no PubMed Central, com vistas à melhoria da qualidade e do aumento das métricas. Em 2018 o Fator de Impacto alcança o valor de 2.935, o Cites per Doc o de 2.973 e o CiteScore de 2.630. Em seis anos os indicadores tiveram um incremento substancial, ou seja, de 0.5 para 2.9. Tendo em vista os elevados investimentos necessários para renovação do contrato de parceria, e por tratar-se de uma publicação acadêmica e não-comercial, o corpo editorial decidiu manter o acesso aberto e tentar a sustentabilidade financeira do periódico a médio prazo, trazendo a publicação de volta ao Brasil a partir de 2019. A equipe SciELO acolheu a corajosa iniciativa e tornou-se o novo parceiro neste desafio. As estratégias adotadas na transição estão descritas em detalhes no “relato de experiência”.
A Trilha de um periódico científico de uma instituição particular na transição da publicação impressa à eletrônica e na busca de indexações internacionais
Authors: Martins Emanuela Paula , Marino Márcia Thelma Rios Donato , Pinto Juliana Maria de Sousa
Published: March 2020

Este artigo tem como objetivo apresentar o estudo de caso da Revista Tecnologia quanto aos desafios no processo de transição da publicação impressa à eletrônica e na busca da internacionalização. O estudo revelou que o uso do SEER/OJS oferece uma maior uniformidade de informações e traz uma identidade ao periódico. A internacionalização se apresenta como um aspecto importante para visibilidade da revista, sendo premente um aumento do networking interno e externo.
Comparative Assessment of Potassium Sorbate and Clove Oil (Syzygium aromaticum, L.) on Quality Alteration in Chilled Crayfish (Astacus leptodactylus)
Authors: FADİLOGLU Eylem Ezgi , COBAN Mehmet Zulfu
Published: March 2020

In this study, comparative assessment of potassium sorbate and clove oil (Syzygium aromaticum L.) on the quality characteristics of crayfish (Astacus leptodactylus) during storage at 2°C for 20 days has been investigated. Both potassium sorbate and clove oil application retarded lipid oxidation during 20 days of storage. There were no significant differences between peroxide values (PV) of potassium sorbate and clove oil treated crayfish samples. At day 20, CO1 group showed the lowest FFA content. Least TMAB was observed in 1% clove oil treated samples throughout the storage period. Clove oil treated samples had significantly lower PBC then the control and potassium sorbate treated crayfish samples during storage period. After 10 days of storage, control samples were microbiologically unacceptable. 1% clove oil treatment was more effective than 1% potassium sorbate treatment in preventing growth of molds and yeast throughout the storage period.
Bitkisel tasarımların formal (biçimsel) estetik model bağlamında değerlendirilmesi: Antalya Konyaaltı bölgesi
Authors: OKTAY Hilmi , ERDOĞAN Reyhan
Published: March 2020

Çalışma
kapsamında kullanıcı ve peyzaj mimarlarının bitkisel tasarımlara ilişkin
tercihlerini saptamak amacıyla anket çalışması yürütülmüştür. Bu bağlamda 400
kullanıcı anketi ve 51 peyzaj mimarı anketi gerçekleştirilmiştir. Bulgular
değerlendirildiğinde, yapılan regresyon analizleri göstermiştir ki, peyzaj
mimarlarının bitkisel tasarım hakkında tercihlerini en çok etkileyen bitkisel
tasarım unsurları Vurgu, Denge ve Doğallıktır. Bunun yanında kullanıcıların
bitkisel tasarım hakkında tercihlerini en çok etkileyen bitkisel tasarım
unsurları ise Vurgu ve Dengedir.
Alüviyal fizyografyalar üzerinde gelişen farklı topraklarda arazi değerlendirme çalışmaları
Authors: ŞİMŞEK Ozan , ALTUNBAŞ Sevda , DEMİREL Bayram Çağdaş , GÖZÜKARA Gafur
Published: March 2020

Her geçen
yıl tarımsal arazilerin toplam araziler içindeki oranı gittikçe azalmakta,
tarım alanlarımız birçok yerde amacının ve yeteneğinin dışında, plansız bir
şekilde kullanılmaktadır. Bu çalışmada, tarımsal üretim için kıymetli sayılan
alüviyal araziler, materyal olarak seçilmiştir. Bu amaçla, Antalya ili Aksu
ilçesinde yer alan Solak köyünün alüviyal arazileri, gelecekte yapılacak ideal
arazi kullanım planlamaları ile tarımsal veya tarım dışı, her türlü kullanım
kararlarında kullanılmak üzere incelenerek değerlendirilmiştir. Toplam 1625.3
ha’lık çalışma alanına ait topografik haritaların, hava fotoğraflarının, uydu
görüntülerinin incelenmesi ve arazi değerlendirmeleri sonucunda, 3 farklı
fizyografik ünite tespit edilmiştir. Taşkın düzlüğü, nehir sırtı ve yan dere
alüviyali olarak belirlenen fizyografik üniteler üzerinde ise birbirinden
farklı toplam 8 adet toprak serisi tespit edilmiştir. Toprak serilerinden Atçayırı,
Batem 1, Expo, Kelbük, Körcegözler ve Mısnar serileri taşkın düzlüğünde, Solak
serisi nehir sırtı üzerinde, Batem 2 serisi ise yan dere alüviyal
fizyografyaları üzerinde belirlenmiştir. Çalışma alanında 250 m x 250 m
aralıkla 259 grid noktası işaretlenmiş ve her bir noktanın seri+faz düzeyinde
haritalama birimleri tanımlanmıştır. Ardından her bir haritalama birimine bağlı
arazi yetenek sınıfları tespit edilmiştir. Çalışma alanında arazi yetenek
sınıflamasının sadece I., II. ve III. sınıflarına sahip araziler tespit
edilirken, II. ve III. sınıf arazilerde toprak tekstürüne (s) ve/veya drenajına
(w) ilişkin sorunlar olduğu bulunmuştur. Çalışma alanı içerisindeki farklı
arazi yetenek sınıflarının haritalandırılmasıyla
sonuçlanan bu çalışma da arazilerin yetenekleri dışında kullanımlarına engel
olmak için bilimsel bir dayanak oluşturulmaya çalışılmıştır.
Antalya ilinde Genç Çiftçi Projesinin uygulaması ve sürdürülebilirliği üzerine bir araştırma
Authors: ÖZKAN Burhan , ALKAN Ahmet
Published: March 2020

Bu araştırmanın amacı; Antalya ilinde Genç Çiftçi Projesi (GÇP) uygulamasının sürdürülebilirlik, kırsal nüfusun istihdamı, çiftçilerin gelir düzeyinin arttırılması gibi hedeflerinin, gerçekleşme potansiyelini ve sürdürülebilirliğini değerlendirmektir. Araştırmanın ana materyalini, araştırma kapsamına alınan 10 ilçede GÇP’den yararlanan 127 genç çiftçi ile 2018 yılında yapılan yüz yüze anket verileri oluşturmuştur. Çalışmada çiftçilerden elde edilen veriler kullanılarak GÇP uygulamasının güçlü ve zayıf yönleri ile fırsat ve tehditlerine göre GZFT analizi yapılmıştır. Araştırma kapsamındaki çiftçilerin %15’i erkek ve %85’i kadın olup çiftçilerin yaklaşık %62’si hayvansal üretim, %38’i bitkisel üretim yapmaktadır. Görüşme yapılan çiftçilerin büyük çoğunluğu gelirini arttırmak için GÇP’ye başvurdukları belirlenmiştir. Projeden yararlanan çiftçilerin %85 gibi büyük çoğunluğu projeyi yararlı görmektedir. Diğer yandan çiftçilerin %14.2’si GÇP ile tarımsal üretime başladığını belirtmişlerdir. Araştırmadan elde edilen sonuçlara göre çiftçiler tarafından GÇP uygulaması yararlı bir proje olarak kabul edilmektedir.
Determination of nutritional values and postharvest performance in different types of tomatoes stored under shelf-life conditions
Authors: ALİ Qasid , KURUBAS Mehmet Seckin , USTUN Hayri , ERKAN Mustafa
Published: March 2020

In this study, beefsteak (cv. ‘Tybif’), heirloom (cv. ‘Yuksel Koy’) and cluster types (cv. ‘Merkur’) of tomato were harvested at breaker stage of maturity and stored at 20ºC temperature and 60±5% relative humidity for comparing their ethylene production, respiration rate, postharvest performance and nutritional characteristics. Analysis for weight loss, antioxidant activity, carotenoid, flavonoid, total phenolics, ascorbic acid contents, ethylene production, respiration rates and amount of unmarketable fruits were determined during 21 days of storage. Weight loss, ethylene production, respiration rate, carotenoid content and amount of unmarketable fruits exhibited increase whereas flavonoid and ascorbic acid content showed decrease with extending storage duration. Maximum antioxidant activity, carotenoid, total phenolics and ascorbic acid contents and minimum weight loss, ethylene production and respiration rate were noted in beefsteak type of tomatoes. Based on results obtained it can be concluded that beefsteak type of tomatoes can be successfully stored with maximal nutritional quality for 21 days of storage as compared to heirloom and cluster types of tomatoes.
Allen, Richard, Beyond the Noise of Solemn Assemblies: The Protestant Ethic and the Quest for Social Justice in Canada
Authors: Douville Bruce
Published: March 2020

Book Review.
Books Received/ Livres reçus
Authors: Urbanik Marta-Marika
Published: March 2020

Books Received/ Livres reçus
ARGAMASSAS DE REVESTIMENTO COM TERRA: FINALIZAÇÃO DO PROTÓTIPO EXPERIMENTAL EM BAMBU DA UFSC
Authors: Vitor Alexandre Oliveira , Lisbôa Sumara , Librelotto Lisiane Ilha
Published: March 2020

A busca por alternativas de construção menos impactantes ambientalmente é essencial para o desenvolvimento sustentável de uma nação. Nesse sentido, por serem materiais com baixa energia incorporada e comumente encontrados no Brasil, a terra e o bambu se destacam como possíveis alternativas. Utilizando-se do protótipo de edificação modular em estrutura de bambu da UFSC com o intuito de finalizar e dar acabamento, esta pesquisa teve como objetivo avaliar a aderência e aplicabilidade de diferentes argamassas de revestimento com terra sobre as paredes de bahareque (técnica de construção mista). Foram utilizadas duas camadas de revestimento: emboço, reboco e acabamento final com caiação. Como resultado, observou-se que a categorização do solo a ser utilizado é de extrema importância para a elaboração de argamassas de revestimento com terra.
Pesquisa-ação como metodologia e interseccionalidade(s) como método-praxis
Authors: Bomfim Rainer , Bahia Alexandre Gustavo Melo Franco de Moraes , Rocha Marina Souza Lima
Published: March 2020

O objetivo do texto é mostrar uma articulação entre a metodologia da pesquisa-ação, desenvolvida por Michel Thiollent, e do método da interseccionalidade(s), que foi cunhado por Kimberlé Crenshaw. Para isso, articula-se a problemática das ciências modernas como ciências neutras e como a pesquisa-ação supera os problemas deixados por aquelas possibilitando um salto qualitativo e melhor adequado às ciências sociais aplicadas. Em seguida, passa-se à conceituação e articulação dos conceitos chaves para, por fim, demonstrar a articulação entre pesquisa-ação e interseccionalidade(s) na prática por Universidades Federais. A metodologia utilizada no crítico-metodológica.
Pandemia COVID-19
Authors: Martins José Carlos Lopes
Published: March 2020

Este é simultaneamente um tempo de combate e um tempo de preparação do pós-guerra. Estamos a defrontar um inimigo invisível e insidioso com um enorme potencial de destruição de saúde das populações e da economia dos Países, que coloca tremendos desafios aos sistemas de saúde e às lideranças institucionais e políticas.A mobilização de respostas adequadas requer, como nunca, lideranças fortes e esclarecidas por parte de empresas, organizações sociais e decisores políticos porque está em causa um difícil trade-off entre saúde e economia que precisa de ser lidado com inteligência, coragem e perseverança; precisamos de sair destes estranhos e pesados dias com a força e os meios que nos permitam reconstituir as estruturas económicas e sociais abaladas por esta pandemia.Sem experiências anteriores sobre uma epidemia desta magnitude há que recorrer, desde logo, aos conhecimentos científicos disponíveis, que aliás têm estado a ser atualizados num notável esforço de investigação participada e partilhada entre os principais centros de investigação científica de todo o mundo. Mas há que recorrer também às competências de gestão deste tipo de crises, com envolvimento ativo de todas as forças sociais e económicas que sejam relevantes na dura luta que há que travar.É em momentos conturbados e difíceis como o que estamos a viver, que são imprescindíveis lideranças mobilizadoras capazes de obter o melhor das organizações e de nós todos, principalmente daqueles que têm que estar na primeira linha de combate - os Profissionais de saúde. E? felizmente o que tem estado a ocorrer com organizações de saúde como é o caso da José de Mello Saúde que, atempadamente planeou e organizou os recursos de forma a contribuir responsavelmente para o esforço nacional que o País tem em curso.Esta, como outras grandes crises da humanidade, há de passar embora deixando um enorme impacto económico e social; preparemos com confiança um futuro que será com certeza mais incerto e mais exigente.
Control of Weld Residual Stress in a Thin Steel Plate through Low Transformation Temperature Welding Consumables
Authors:   American Welding Society, WU XIN , WANG ZHIFEN , YU ZHENZHEN , LIU STEPHEN , BUNN JEFFREY R. , KOLBUS LINDSAY , FENG ZHILI
Published: March 2020

Low transformation temperature welding (LTTW) consumables are characterized by a low martensite start temperature and a large fraction of martensite forming in the weld. It can efficiently reduce the tensile residual stress because the volume expansion associated with the martensitic transformation compensates for the thermal contraction during cooling. In this work, a LTTW wire, designated as EH200B, was created for the arc welding of advanced high-strength steel thin plates. In comparison to conventional ER70S-3 wires, this LTTW wire generated an opposite distortion pattern. Neutron diffraction measurements along the center thickness of the welded plates showed the maximum residual stress along the longitudinal direction (LD) in the weld region, and the heat-affected zone (HAZ) immediately adjacent to the weld region was reduced from ~330 MPa to below 240 MPa by using the LTTW wire. A finite element (FE) model was developed to predict the residual stress distributions of the plates welded under these two wires. The simulation results showed reasonable agreement with the volume-average neutron diffraction data. Compressive residual stress in the weld region using the LTTW wire was predicted by the FE method. Electron backscattered diffraction and x-ray diffraction measurements confirmed ~90% martensite was present in the LTTW weld. The fatigue life of DP980 steel lap joint panels using EH200B wire nearly doubled that of ER70S-3 wire. This improvement was attributed to the high strength and low LD residual stress in the weld and HAZ immediately adjacent to the weld.
Safety & Environmental Risk Management: Borrowing from the Past to Enhance Knowledge for The Future
Authors: Fragouli Evangelia , Nzioka Faye , Manar Selma
Published: March 2020

The oil and gas industry is facing more and more challenges in the latest decades. Indeed, as oil and gas became more difficult to be found, new areas are targeted, as deep water offshore or more hostile environments like Alaska. These involve high technology industry and imply deep uncertainty. Thus, the application of classical approaches of risk management is limited, as shown by major safety and environmental oil disasters like the Deep Water Horizon Accident. This paper analyses the later as a case study, to discuss the complexity of safety and environmental risk management in deep-water drilling. Given this complexity, the paper will also analyse how feedback from previous accidents can improve knowledge, and change the perception and thus the way safety and environmental risks are managed in deep-water drilling. The findings of the paper contribute to development of risk management policy and risk decision making.
Conceptualizing Blockchain Technology in Utilization of Social Welfare Service for the Disabled
Authors: Kim Namjin , Hong Ahreum
Published: March 2020

This study analyzed factors influencing acceptance intention for blockchain technology in social welfare services for the disabled. Security and economics were the leading variables related to blockchain technology acceptance. Willingness to pay, fairness, and regulation were the leading variables reflecting characteristics of public services. UTAUT (Unified Theory of Acceptance and Use of Technology) was used as a research model, and performance expectations, effort expectations, and social impact were considered. Based on the blockchain-based virtual disabled voucher process, this study utilized prior knowledge based on the use of rehabilitation center. The STATA / SE 12.0 statistical program was used to analyze demographic frequency, factor analysis, reliability, and structural equation modeling (SEM). Pay-out and fairness have the greatest influence on acceptance intention, and economic and regulatory factors are the next influential factors. Only economic performance has been identified as a leading variable influencing the expectations of effort, and security has been shown to affect only social impact. Economic performance influenced performance expectation, effort expectation, and social influence. Expectation of effort did not affect acceptance intention. This study provides useful information for establishing a practical strategy when introducing blockchain technology to the public service called disabled welfare.
Energy Consumption in Residential Buildings: Comparison between Three Different Building Styles
Authors: Umbark Mohamed A. , Alghoul Samah Khalifa , Dekam Elhadi I.
Published: March 2020

More than one-third of the electricity generated in the world is being consumed in the residential sector. This study aims to model, simulate, and estimate electrical energy consumption in three different building styles. That is in order to compare and contrast energy consumption categories and their related social and architectural aspects for an unaddressed region that have its particular weather conditions and its special social and environmental aspects. The simulation is done by detailed modeling of the buildings using EnergyPlus. The results demonstrate that water heating systems account for almost one-fifth of the annual energy consumption. Cooling loads were found to be more than 5 times the heating loads. The peak of energy consumption was recorded to be in July, while the lowermost recorded in April and in November. The Apartment style requires the lowest annual energy consumption by an amount of 10 kWh/m2 per person followed by the Duplex house with 13 kWh/m2 per person, while the Single-Story house comes with the highest energy consumption of 18 kWh/m2 per person. These represent local power consumption of 69, 79, and 90 kWh/m2, respectively. On average, the water heating, space cooling, plus interior lights consume about 60% of total energy requirements with a mostly equal share for each, while the equipment has the maximum share of 35% of the total, leaving about 5% for the rest. The results of this study may be used as a reference line in the future for the calculations of energy savings in similar regions.
Exploration and Discussion on the Clinical Therapeutic Effects of the Application of Cross-Injury Vertebral Fixation and Via-Injury Vertebrae Fixation in the Treatment of Bone Tumor with Thoracolumbar Spine Fracture
Authors: Wang Haibin
Published: March 2020

Objective: To explore and discuss the clinical therapeutic effects of the application of cross-injury vertebral fixation and via-injury vertebrae fixation in the treatment of bone tumor with thoracolumbar spine fracture. Methods: A total of 58 patients with bone tumors and thoracolumbar spine fractures admitted to our hospital from February to February 2019 were selected as the study subjects. They were randomly divided into control group and observation group, with 29 cases in each group. The patients in the control group received cross-injury vertebral fixation treatment, while the patients in the observation group were treated with via-injury vertebral fixation. The therapeutic effects of the two groups were compared. Results: The operation time and hospitalization time of the observation group were significantly shorter than those of the control group (P<0.05), and the postoperative drainage volume of the intraoperative blood loss was significantly less than that of the control group (P<0.05). There was no significant difference in postoperative pain and spinal JOA scores between the two groups (P>0.05); there was no significant difference in the compression ratio of the injured vertebrae and the kyphosis Cobb angle between the two groups (P>0.05), after the operation, the two groups of patients were significantly reduced, and the compression ratio of the injured vertebrae and kyphosis Cobb angle of the observation group were more obvious (P<0.05); the vertebral height loss and Cobb angle loss in the observation group were significantly lower than those in the control group (P<0.05). Conclusion: In the treatment of bone tumor with thoracolumbar spine fracture, compared with cross-injury vertebral fixation, via-injury vertebral fixation has a more significant clinical effect and is more suitable for clinical application and promotion.
Improve the Center Supply Room to Ensure the Quality System for Disinfection and Sterilization
Authors: Wang Zhe
Published: March 2020

The disinfection supply room is a very important department of the hospital. Its main job is to provide sterile equipment and dressings for various activities in the hospital. It is an important department in the hospital infection management process. Doing a good job in the control and management of the disinfection supply room is the main link to ensure the prevention and control of hospital infections. The quality of management directly affects modern clinical medical work. Therefore, the hospital supply room should be strengthened and improved to ensure that all items can be safely used in the work process, which can effectively avoid the occurrence of cross-infection incidents in the hospital.
Chinese Mosuo “Playing Dance” Music Analysis
Authors: Chen Sisi
Published: March 2020

Being the only extant matriarchal society in China, the Mosuo people are now living in the border of Yunnan and Sichuan. Under the combined influence of its unique form of society and the coexistence of diversified ethnic groups, the Mosuo people have thus developed a unique kind of music with compatible features. In this paper, through the introduction of the “playing dance” music of Mosuo people in Yunnan, I tried to further discuss the phenomenon of compatibility in their music, so as to enhance people’s understanding of the characteristics, as well as the values of Mosuo music.
Thoughts about the Innovation of Mathematics Teaching Mode in Higher Vocational Colleges from the Viewpoint of “Task List”
Authors: Tian Guijuan
Published: March 2020

With the reform of talent demand mode in China, in today’s society, the need for talents of enterprises are more inclined to application-type vocational and  technical talents , this has created enormous opportunities for the growing of higher vocational colleges which are the incubation base for applied talents ,at the same time, it also exposes the practical problems of the backwardness of the current mathematics teaching mode in higher vocational colleges, thus brings unfavorable influence on the implementation of the talent cultivation program in higher vocational colleges, "Task list" is one of the teaching requirements put forward by China's educational reform in the new age, and the important direction for higher vocational colleges to reform the mathematics teaching mode in the new age.
Transformation of English Teaching Contents and Teaching Methods in Higher Vocational Colleges Under the Background of “Internet +”
Authors: Xiong Wei
Published: March 2020

Traditional English teaching in higher vocational colleges has some problems in the cultivation of students, which cannot meet the needs of social development. With the development of the Internet age, the traditional way is challenged, while there are also great opportunities. Therefore, for the English teaching of higher vocational colleges, we should seize the opportunity of the times, change the teaching content and teaching methods, follow the development trend of the times, meet the challenges, enhance the teaching level, promote the modern development of teaching, and cultivate high-quality talents for social needs. Based on this, this paper first briefly analyzes the problems existing in the current English teaching in higher vocational colleges, challenges the English teaching in Higher Vocational Colleges under the background of “Internet +”, then analyzes the transformation of English teaching content in Higher Vocational Colleges under the background of “Internet +”, and finally analyzes the transformation of English teaching methods in Higher Vocational Colleges under the background of “Internet +” , hope to provide some helpful reference and opportunities of exchanges for scholars and related people of the industry.
Interpretations of Rice Paper Watercolor Painting in Art Teaching
Authors: Qu Yifeng
Published: March 2020

The ricepaperplant pith is also known as Tetrapanax papyrine, Akebia, or tall gastrodia fruit, a kind of shrub or small tree of the Araliaceous. It is native to south China and Taiwan Prov., the raw material of rice paper. Extract its central tissue from the stem to make pith slices which could be made as the watercolor painting paper. It arose in Guangzhou in the 19th century, and the themes are mainly focused on reflecting the social life scenes as well as various characters in late Qing Dynasty, such as officials, soldiers, juggling, weaving, playing instrument, etc. The works are lively, vivid, and bright in colors. As the result of using western painting principles and reflecting Chinese local customs, rice paper watercolor paintings were admired by Westerners at that time. However, as pith paper is fragile, the size of painting was usually small and difficult to conserve, there are few works handed down in China. In recent years, the rice paper watercolor painting has attracted more and more concern, which is of great significance to the study of the development of early Western paintings in China.
Dieffenbachia plant poisoning cases and effects on human health
Authors: UNLU Ummuhan , KOCABAŞ Aytaç
Published: March 2020

Many plants, such as Dieffenbachia Schott, which are poisonous and can be life threatening, are present in the habitats of people. Dieffenbachia is widely used for ornamental purposes in living quarters, but it is a plant species that can harm human health as a result of contact, chewing or ingestion. The aim of this work is to attract the attention of researchers to the role of the Dieffenbachia plant, often used for ornamental purposes in homes, especially in the case of home accidents that children are exposed to and the likelihood of abuse. For this reason, Dieffenbachia poisoning cases in the literature have been discussed in the context of resources. A total of 7 cases were studied, including three cases of 1-3 years of age, 3 cases of 7-12 years and a case of adult age of 69, obtained by investigating the literature. Dieffenbachia plant can cause vital signs, such as airway obstruction and respiratory failure, as well as mild skin reactions, depending on the type of contact and amount of exposure. Care should be taken and caution should be exercised on the use of plants such as Dieffenbachia and similar plants in houses, playgrounds and other green area regulations.
Spatially Constrained Clustering of Nigerian States: Perspective from Social, Economic and Demographic Attributes
Authors: Lawal Olanrewaju
Published: March 2020

Creation
and differentiation of regions are some of the basic tasks in geographic
analysis. Regionalisation attempts to create a generalised representation of
the processes which is taking place at the level of the amalgamated geographic
units. To this end, this study examined the combined use of demographic,
economic and poverty characteristics of States across Nigeria to create regions
relevant for economic and development planning. The study utilised dependency
ratios derived from gridded age structure data, Gross domestic product (GDP),
poverty index. K-Means and Max-p algorithm were used for identification of
regions. Correlation analysis showed that
Youth dependency and total dependency have a strong statistically significant
positive relationship (r=0.998, p<0.01) indicating that dependency in the
country is driven by youth. The best K-Mean clustering implementation without
considering contiguity identified 12 regions with a ratio of between and total
sum of squares (RBTSS) of 0.789. The Max-p algorithm was tested with population
constrain, the best result identified 9 regions with RBTSS of 0.611 constrained
by a minimum population of 8% and implemented with the greedy local search
algorithm, this was the same for the simulated annealing approach (SA). With
high dissimilarity still common across a handful of the regions identified, a
further test was carried out using a minimum bound of 3 States and the SA local
search approach. The best result identified 11 contiguous regions with only one
region having a relatively high within region dissimilarity and a RBTSS of
0.626. The results confirmed that there are more than 6 regions as currently
defined for the country. The analyses showcased an example of knowledge
discovery from a spatial dataset which could support regional development
planning. From the results, there is a clear need for re-examination of current
regions and designing of better-defined regions to ensure that development is
guided by evidence.
The Bacteriological Risk Transported to Seas by Rivers; the Example of Çırpıcı River, the Sea of Marmara
Authors: Altuğ Gülşen , Hulyar Onnocan
Published: March 2020

The identification of bacteriologically characters of coastal areas is important due to the fact that bacteriological pollution, transported to seas via rivers is a potential threat for ecosystem, animal and human health. In this study, bacteriological load of Çırpıcı River transporting to the Sea of Marmara from Zeytinburnu location in Istanbul and its relationship with primary hydrographic parameters investigated. The levels of fecal coliform (FC), total coliform (TC), fecal streptococci (FS) and total heterotrophic aerobic bacteria (HPC) tested using Membrane Filtration Technique in the surface water samples. Seawater temperature, pH, salinity, dissolved oxygen were recorded in-situ using multiparameter (YSI556 MPS). While the highest TC detected to be 13x107 CFU/100 ml, the highest FC was 14x106 CFU/100 ml. The lowest FC recorded as 25x10 CFU/100 ml. While the highest FS level was determined to be 73x105 CFU/100 ml, the highest HPC was 14x106 CFU / ml. Variable environmental parameters recorded for seawater temperature between 10.3-29.5˚C; pH 6.0-8.38; dissolved oxygen 0.34- 10.71 mg /l and salinity 16.50-26.57 psu during the study period. Significant correlation between the temperature and FC, FS and THAB detected. The levels of bacteria detected at the spot where the Çırpıcı River poured into the Sea of Marmara were found higher than the station at the 800 m open of the Sea of Marmara. It was determined that the Çırpıcı River carried 103 CFU bacterial loads at 100 ml for TC to the Sea of Marmara. The FC and FS counts carried to the Marmara Sea from Çırpıcı River recorded to be 102/100 ml and 103/100 ml, respectively. The fact that FC and TC levels were above the limit values during the study indicate the stability of pollution sources in the region and that the Çırpıcı Stream carries a bacteriological risk in terms of human, animal, and environmental health.
Coastline Difference Measurement (CDM) Method
Authors: Çelik Osman İsa , Gazioğlu Cem
Published: March 2020

Coastline Difference Measurement (CDM) Method is designed to provide a fast and practical way to obtain distance differences between 2 taut zonal coastlines. Comparison purposes could be considered as change detection to monitoring coastal zones or obtaining accuracies while studying coastline extraction methods. In this study CDM method is explained over a coastline extraction case. In this example case, CDM method is used to measure accuracy of the estimated coastline via Extra Trees (ET) machine learning model. Main advantages and limitations of the methods are explained.
Public Administration Research in Mainland China: An Update
Authors: Li Huafang
Published: March 2020

This short paper highlights the importance and relevance of studying Chinese public administration. As China becomes an increasingly important member in the global village, more attention should be paid to the study of Chinese public administration. On the one hand, many studies will continually focus on studying Chinese public administration itself, and on the other hand comparative study between China and other countries will likely flourish as well.
Un nouveau protocole pour un traitement potentiel des infections dues à Covid-19
Authors: Labidi Abdel H.
Published: March 2020

Récemment, il a été suggéré de traiter l'infection Covid-19 avec une combinaison de l'antipaludique « Hydroxychloroquine » (200 mg 3 fois par jour pendant 6 jours) et de l’antibactérien « Azithromycine » (500 mg par jour pendant 6 jours) (4)Dans cette opinion, nous essayons de répondre aux questions suivantes : Comment ces deux molécules fonctionnent-elles ensembles et est-ce que l’Azithromycine est le meilleur choix ?
Gender is a multifaceted concept: evidence that specific life experiences differentially shape the concept of gender
Authors: Mazzuca Claudia , Majid Asifa , Lugli Luisa , Nicoletti Roberto , Borghi Anna M.
Published: March 2020

Gender has been the focus of linguistic and psychological studies, but little is known about its conceptual representation. We investigate whether the conceptual structure of gender—as expressed in participants’ free-listing responses—varies according to gender-related experiences in line with research on conceptual flexibility. Specifically, we tested groups that varied by gender identity, sexual orientation, and gender-normativity. We found that different people stressed distinct aspect of the concept. For example, normative individuals mainly relied on a bigenderist conception (e.g., male/female; man/woman), while non-normative individuals produced more aspects related to social context (e.g., queer, fluidity, construction). At a broader level, our results support the idea that gender is a multifaceted and flexible concept, constituted by social, biological, cultural, and linguistic components. Importantly, the meaning of gender is not exhausted by the classical dichotomy opposing sex, a biological fact, with gender as its cultural counterpart. Instead, both aspects are differentially salient depending on specific life experiences.
h5fortran: object-oriented Fortran HDF5 interface
Authors: Hirsch Michael
Published: March 2020

h5fortran provides object-oriented and functional interface to the HDF5 library for Fortran. h5fortran prioritizes ease-of-use, robust self-tests and Fortran 2008 standard syntax for broad compiler, operating system and computing platform support from Raspberry Pi to HPC.
Won’t you self-confine for two weeks to save a town? Delaying exponential growth.
Authors: Levy Michal , Leiser David , Spivak Avia
Published: March 2020

Much of the communication around the current pandemic stresses the exponential growth in the number of infections. We observe that this approach may backfire: it becomes difficult to convince people to obey strict constraints when what will be achieved is merely a short delay in that growth. Based on a method we successfully used in a context of pension savings, we suggest how best to frame the gains of delaying tactics