bluuebunny/crossref_metadata_2025 huggingface dataset:
Computing the 3-D structure of viruses from electron microscope images
Authors: Lee Junghoon , Zheng Yili , Doerschuk Peter C. , Tang Jinghua , Johnson John E.
Published: September 2019

Statistical methods for computing multiple 3-D reconstructions from cryo electron microscope images (noisy 2-D projections in unknown orientations) of mixtures of assembly mutants of Cowpea Chlorotic Mottle virus are described.
Three-Dimensional Shape-Based Imaging in Diffuse Optical Tomography Using Spherical Harmonics
Authors: Boverman Gregory , Miller Eric L. , Boas David A.
Published: September 2019

We reconstruct polar three-dimensional shapes in Diffuse Optical Tomography using a basis of spherical harmonics. We also show how to efficiently compute the derivative of our measurements with respect to shape perturbations.
Artifacts, Bias, and Super-Resolution
Authors: Matson Charles L. , Tyler David W.
Published: September 2019

We have previously defined "primary" and "secondary" super-resolution phenomena, differing in the appearance of bias in the resulting spectrum. Here, we demonstrate artifacts resulting from that bias discuss its relevance to bandwidth extension by data inversion.
UNIVERSIDADE: ESPAÇO PARA (RE)PENSAR CONCEPÇÕES DE GÊNERO, MASCULINIDADE E SUAS IMPLICAÇÕES NA FORMAÇÃO DE PEDAGOGOS
Authors: Silva Ivone Maria Mendes , Lapinski Tatiane Fátima
Published: September 2019

O presente artigo analisa as concepções sobre gênero e masculinidade(s) de pedagogos em formação, buscando discutir de que forma a inserção deles no contexto universitário tem repercutido na (re)construção de suas masculinidades. Enfoca ainda aspectos da formação em Pedagogia e o papel da Universidade na abordagem das questões de gênero, considerando as incidências ou atravessamentos destas questões nas possibilidades formativas e de atuação profissional às quais os pedagogos têm acesso. As narrativas produzidas pelos sujeitos da pesquisa, no contexto de um grupo focal, apontam a vivência de experiências em que suas masculinidades foram questionadas, principalmente em função da escolha profissional. No entanto, eles problematizam esse preconceito como algo que deve ser desnaturalizado, assim como as concepções de gênero que o sustentam. Conclui-se que a Universidade, como outros espaços educativos, pode assumir um papel importante na discussão de padrões normativos de gênero e na desconstrução de práticas discriminatórias nesse âmbito.
O OBJETO JOGADO DO QUARTO ANDAR ERA UM CORPO – DE MULHER
Authors: Accorsi Fernanda Amorim , Maio Eliane Rose
Published: September 2019

Neste artigo, problematizamos a notícia do G1 sobre o feminicídio da advogada de Guarapuava, no Paraná, Tatiane Sptizner, em 22 de julho de 2018. Objetivamos relacionar a violência cometida contra de Tatiane às discussões feministas que visualizam o silêncio como um dos muitos tentáculos do machismo. Discutimos de modo teórico e crítico para ressalvar as vozes femininas que são jogadas no esquecimento quando outro caso semelhante de violência contra a mulher ganha repercussão midiática. Entendemos que a violência contra a advogada é um resquício do machismo estruturado nesta realidade, e que a repercussão sobre seu caso está diretamente atrelada à sua condição de mulher.
REFLEXÕES SOBRE OS TEMAS DE GÊNERO, ETNIA E DIVERSIDADE SEXUAL NA FORMAÇÃO DOCENTE ATRAVÉS DA TEORIA DO IMAGINÁRIO SOCIAL
Authors: Machado Gabriella Eldereti , Oliveira Valeska Maria Fortes de
Published: September 2019

Este artigo se propõe com base nos estudos de Cornelius Castoriadis sobre Imaginário Social discutir e aproximar-se da relação entre o instituído e instituinte para problematizar as questões de gênero e diversidade sexual na formação de professores.  No qual serão abordados aspectos referentes à constituição da sociedade e sua dinâmica nas instituições sociais por meio do Imaginário Social, refletindo sobre as relações de representação de gênero, etnia e diversidade constituintes do modo que cada indivíduo se relaciona com o outro e com o mundo.
TOMBOY: POTENCIALIDADE PARA PROBLEMATIZAR GÊNERO E SEXUALIDADE
Authors: Silva Apolonia de J. Ferreira
Published: September 2019

O presente trabalho busca discutir e problematizar a produção discursiva dos sujeitos e a sua relação com as subjetividades, pensando os discursos que circunscrevem as relações de gênero e as sexualidades e que organizam o filme Tomboy[1]. Apresenta como aporte teórico a perspectiva Pós-estrutulalista, os estudos Foucaltianos, assim como os estudos sobre a cultura visual. Nesse sentido consideramos importante refletir acerca dos processos de enquandramento e resistência, entendendo-os como possibilidades educativas de pensar o ser diferente.PALAVRAS-CHAVE: Cinema. Educação. Gênero. Sexualidade.[1]  Tomboy, da diretora Céline Sciamma, é um longa-metragem, produzido no ano de 2012.  Apresenta como atriz principal, Laure, uma criança de dez anos, biologicamente feminina, mas que parece se sentir, vestir e agir como pertencente ao gênero masculino.
ADENTRANDO ESPAÇOS ESCOLARES: ANÁLISE DE DISSERTAÇOES EM PROGRAMA DE MESTRADO EM EDUCAÇÃO SEXUAL
Authors: Bengozi Pâmela Cian da Cruz , Silva Ricardo Desidério da
Published: September 2019

A sexualidade, proposta como tema transversal pelo PCN (BRASIL, 1997), ainda é rodeada por tabus e preconceitos, dos quais precisam ser desmistificados. Entretanto, existem avanços significativos que contribuem de forma positiva para os alunos, visando uma Educação Sexual emancipatória e responsável, que possibilite ao aluno ser um sujeito ativo frente a sua própria sexualidade. Pensando nisso, buscou-se analisar a partir de uma pesquisa do Estado da Arte as produções acadêmicos-científicas em 36 (trinta e seis) Dissertações de Mestrado na área da Educação Sexual. Para tanto, a escolha se deu no Mestrado em Educação Sexual da Universidade Estadual Paulista “Júlio de Mesquita Filho” – UNESP, Campus de Araraquara-SP, primeiro Programa de Pós-graduação Stricto Sensu em Educação Sexual no Brasil. Apontando assim, para os progressos ocorridos em sala de aula, bem como a repercussão construída, que poderão servir de base para o aprimoramento de novos estudos e pesquisas no campo da Educação Sexual.PALAVRAS-CHAVE: Sexualidade. Escola. Educação sexual. Dissertações.
EXPERIÊNCIAS DE DISCENTE DO CURSO DE EDUCAÇÃO FÍSICA NO PIBID: A INEXISTÊNCIA DO DIÁLOGO SOBRE GÊNERO NAS PRÁTICAS
Authors: Iwamoto Thiago Camargo , Cardoso Taynara Reges , De Oliveira Leonardo Mercês
Published: September 2019

O presente trabalho tem como objetivo realizar um relato de experiência das intervenções e formação de discentes do curso de Educação Física, relacionando com a práxis pedagógica vivenciada no Programa Institucional de Iniciação à Docência (PIBID), sobretudo ao que compete a discussão sobre gênero. É evidente uma relação entre os documentos norteadores da educação superior e básica, onde a primeira oportuniza uma formação para atuação na segunda. O PIBID encontra-se como um programa de extensão que oportuniza aos discentes da Educação Física, nesse caso, a experiência no âmbito escolar. Conforme as experiências de discentes do programa, há um lapso no processo de formação e nas práticas pedagógicas observadas e vivenciadas no contexto escolar através do PIBID, sobretudo na relação entre as práticas corporais e a temática sobre gênero. Essas dificuldades provêm da ausência de subsídios para discorrer sobre gênero, influenciando nas práticas pedagógicas e no processo de formação.
CORPO, SEXUALIDADE E GÊNERO: VERDADES IMBRICADAS AO ENSINO DE CIÊNCIAS E DE BIOLOGIA
Authors: Morando André , Souza Nadia Geisa Silveira de
Published: September 2019

Neste artigo, problematizamos e discutimos as práticas discursivas vinculadas à produção do corpo e da sexualidade nos cursos de Licenciatura em Ciências Biológicas. Examinamos publicações que trazem relatos de experiências pedagógicas de graduandos ligados(as) ao PIBID e aos estágios de docência. Essas publicações estão presentes nas atas de dois importantes eventos científicos: ENPEC e ENEBIO. Inspirados pelos estudos foucaultianos nas suas vertentes pós-estruturalistas, buscamos conhecer os discursos colocados em ação para ensinar sobre o corpo e a sexualidade em sala de aula. Embora os autores entendam e defendam a necessidade de uma abordagem que trate da dimensão social relativa ao corpo e à sexualidade, principalmente, relacionada com as experiências de vida dos alunos, o processo de ensino-aprendizagem continua associado aos discursos biológicos, da anatomia e da fisiologia, e médicos com a finalidade de prevenção de doenças e da gravidez.
The effect of empagliflozin on the development of chronic heart failure after myocardial infarction according to a 12-month prospective study
Authors: Nekrasov Alexey A. , Timoschenko Elena S. , Strongin Leonid G. , Nekrasova Tatyana A. , Baranova Anastasiya A. , Botova Svetlana N. , Timoschenko Michail V. , Yaroslavtseva Mariya A.
Published: September 2019

BACKGROUND: Although the positive cardiovascular effect of empagliflozin has been established, its influence on the formation of heart failure (HF) in patients with type 2 diabetes mellitus (T2D) after myocardial infarction (MI) remains unknown.
AIM: To study the effect of empagliflozin on the formation of chronic HF after MI in patients having diabetes mellitus of type 2 (DM 2), according to 12-month follow-up data.
MATERIALS AND METHODS: 47 patients with MI and DM 2 were included; 21 received standard therapy for MI and diabetes (group 1); 26 patients, in addition, received empagliflozin (group 2). The patients were investigated in 3 and 12 months, to assess the dynamics of glycemic control, 6-minute walk test, echocardiography.
RESULTS: During postinfarction period, the 6-minute walk distance was increasing in group 1 in a lesser degree (p = 0.18) than in group 2 (49.5%, p = 0.0004). The ejection fraction got better particularly in group 2 (p = 0.002). At baseline, the proportions of patients having HF with reduced and mid-range ejection fraction were 85.7% and 82.4% in groups 1 and 2 (p = 0.56) but in 12 months decreased to 71.4% and 29.4% (p = 0.012). In empagliflozin group diastolic function was improved in a third of the patients (p = 0.041). The pulmonary artery systolic pressure was increasing in group 1 (by 10,4%, p = 0.041) but decreasing in group 2 (by 24,0%, p = 0.019). Glycemic control was better in group 2 than in group 1.
CONCLUSION: According to 12-month follow-up data, empagliflozin has a positive effect on HF formation and symptoms in patients having MI and DM 2. This effect may be based on the ability of empagliflozin to improve the state of the heart including the delay of postinfarction remodeling, the improvement of pulmonary artery hemodynamics, systolic and diastolic function, the reduction of risk of chronic HF with reduced and mid-range ejection fraction.
Ultrasonic predictors of macrosomia in gestational diabetes mellitus
Authors: Lysenko Sergey N. , Chechneva Marina A. , Burumkulova Fatima F. , Petrukhin Vasily A. , Panov Anton E. , Plechanova Margarita A. , Ulyatovskaya Victoria I. , Zubkova Natalia A. , Tyulpakov Anatoliy N.
Published: September 2019

BACKGROUND: The basis of early ultrasound (US) diagnosis of diabetic fetopathy (DF) in pregnant with gestational diabetes mellitus (GDM) is the forehanded detection of macrosomia, especially its asymmetric forms. In pregnant with GDM on a diet therapy, the detection of macrosomia may be an indication for starting the insulin therapy. In pregnant with hyperglycemia due to mutation in the glucokinase gene (GCK), US fetal growth dynamics helps to assume the fetal genotype, as well as to stratify the risks of insulin therapy.
AIM: To determine the prognostic significance of asymmetric form of macrosomia and the value of the coefficients of proportionality for the diagnosis of DF in pregnant with GDM, including hyperglycemia due to mutation in the GCK gene.
MATERIALS AND METHODS: US fetometry was performed in 95 pregnant with GDM (including 22 pregnant with hyperglycemia caused by mutation in the GCK gene) (main group) and 427 healthy pregnant women (control group). Estimated fetal weight, standard fetometric indicators and coefficients of proportionality were evaluated. Retrospective analysis of US predictors of macrosomia was carried out after evaluating the weight of the newborn and clarifying the signs of DF.
RESULTS: In the group with GDM, 51 (53.7%) pregnant had children with phenotypic symptoms of DF, including macrosomia 66,7% (34 children). We found statistically significant differences in fetal weight between the control group and the main group who gave birth to children with DF starting from 32 weeks. The coefficients of proportionality (femur length/abdominal circumference and the head circumference/abdominal circumference), characterizing the formation of the asymmetric macrosomia were significantly from 34 weeks (Р0,05).
CONCLUSION: The most effective predictive fetometric indicators for the diagnosis of fetal macrosomia are the dimensions of fetal abdomen and fetal weight 90 percentile for gestational age. A specific sign of DF in pregnant with GDM is the asymmetric macrosomia. In pregnant with a mutation in the GCK gene, the tendency to macrosomia was revealed only in the absence of a mutation in the fetus, but insulin therapy in the presence of a similar mutation in fetus did not lead to a significant decrease in its percentile ranges.
Growth factors in the treatment of diabetic foot syndrome
Authors: Komelyagina Elena Y. , Antsiferov Michail B.
Published: September 2019

Growth factors play a key role in wound healing, deficiency of which leads to delayed healing. Various growth factors are used in the treatment of chronic wounds, including diabetic foot ulcers. The purpose of this review was to analyse the literature data on the effectiveness of epidermal growth factor, platelet-rich plasma and platelet growth factor in patients with diabetic foot syndrome. The effect of treatment with these growth factors on healing of diabetic foot ulcers and healing time were analysed. Published studies, mostly with low level of evidence, demonstrate a positive effect of various growth factors on the healing process of diabetic foot ulcers. Currently, there is no conclusion on the advantages of growth factor therapy. Further studies with a high level of evidence are needed to justify their use in routine clinical practice.
Resolution on the results of the first working meeting of the Scientific Advisory Board «Actual problems of glycemic variability as a new criterion of glycemic control and safety of diabetes therapy»
Authors: Antsiferov Mikhail B. , Galstyan Gagik R. , Zilov Alexey V. , Mayorov Aleksandr Y. , Markova Tatiana N. , Demidov Nikolay A. , Koteshkova Olga M. , Laptev Dmitry N. , Vitebskaya Alisa V. , Alekseeva Yana G. , Stavtseva Svetlana I.
Published: September 2019

June 19, 2018 the meeting of the Scientific Advisory Board took place in Moscow, chaired by Professor G.R. Galstyan, (co-chair – A.V. Zilov) devoted to the discussion of the possibilities of improving the results of treatment of diabetes mellitus (DM) by consideration of «variability of glycemia» (VG) as an additional criterion of the glycemic control effectiveness (especially of insulin therapy) as well as one of the goals of treatment in patients with unstable glycemia.
The purpose of the working meeting was to develop a strategy for the introduction of VG as a predictor and an additional criterion in assessing the effectiveness and safety of hypoglycemic therapy to improve the pharmacotherapy of diabetes and reduce cardiovascular and total mortality.
Aims:
– to conduct a comprehensive data analysis of the relationship between VG and adverse DM outcomes, such as hypoglycemia, micro-and macrovascular complications, cardiovascular and total mortality;
– to accumulate and analyze published data and the experience of decrease of VG and improving outcomes of diabetes on the background of different versions of insulin therapy;
– to compare existing methods of glycaemia monitoring and VG assessment, their validity and availability in real practice in the context of limited budget;
– to analyze the informativeness, clinical and prognostic significance of various parameters of VG assessment and determine their reasonable «minimum» for a comprehensive assessment of VG as a criterion for evaluating the effectiveness of treatment of DM and predictors of negative diabetes outcomes.
The following reports were heard during the discussion:
Glycemic variability: clinical and prognostic value. Types of glycemic variability. (Alexey V. Zilov, MD, PhD in Medicine, Assistant Professor).
Methods of assessment of variability of glycemia in clinical trials and routine practice (Tatiana N. Markova, MD, PhD in Medicine, Professor).
Current international and national recommendations on glycemic monitoring (Gagik R. Galstyan, MD, PhD in Medicine, Professor).
Peculiarities of glycemic variability and its evaluation among children and adolescents (Alisa V. Vitebskaya, MD, PhD in Medicine).
A Pirâmide das Necessidades Estéticas do Sorriso
Authors: Seixas Máyra Reis
Published: September 2019

"Construir sorrisos com resultados estéticos excelentes é um dos principais objetivos do ortodontista, especialmente porque coincide com o maior e mais frequente anseio dos pacientes que o procuram. Se a função, a saúde e a estabilidade são metas imprescindíveis do tratamento ortodôntico, a estética pode ser compreendida como o “plus essencial” a ser oferecido. Sabe-se que sorrisos saudáveis e de aparência agradável estão relacionados ao bem-estar e à autoestima pessoal, podendo influenciar também nas chances no mercado de trabalho." [...]
Utilização do Carriere Motion 3D na correção sagital e na obtenção de espaço
Authors: Prado Eduardo
Published: September 2019

"Temos que sair da zona de conforto e perder o medo de aprender novas alternativas mecânicas, para não deixarmos bloquear o nosso estímulo de experimentar e evoluir sempre. Quando aprendemos algo relativamente novo e ousamos de forma responsável, ultrapassamos o conformismo de fazer sempre o mesmo, e a evolução técnica pessoal acontece. Sabemos que os nossos leitores são amantes da sabedoria e, por isso, gostaria de propor mais uma alternativa para a classe ortodôntica, que tem buscado soluções mais simples, rápidas, confortáveis e, principalmente, mais modernas para os seus pacientes que apresentam má oclusão de Classe II. Podemos afirmar que esse tipo de má oclusão se encontra presente em quase 50% da população e representa uma das mais frequentes alterações oclusais existentes. Contudo, sabemos que existe uma infinidade de alternativas terapêuticas para tratarmos esse tipo de má oclusão. Na terapia com a utilização do Carriere Motion 3D, também conhecida como “Distalizador Carriere”, é fundamental a correção da Classe II na fase inicial do tratamento, diminuindo, assim, o tempo e os efeitos colaterais das mecânicas tradicionais." [...]
A causa dos toros palatino e mandibular não tem relação com a oclusão
Authors: Consolaro Alberto
Published: September 2019

Os toros palatino e mandibular são distúrbios do desenvolvimento do tipo anomalia de forma, com manifestação tardia no crescimento e maturação dos maxilares de natureza genética e hereditária. A “hipótese oclusal” consideraria os toros uma resposta adaptativa à sobrecarga oclusal, bruxismo, apertamento e outros fatores externos, mas os toros não são hiperplasias ou hipertrofias adaptativas, nem neoplasias. O tamanho dos toros se estabiliza no final do crescimento dos maxilares, ao redor dos 22 a 24 anos; e não mais regridem ou crescem depois dessa idade, sendo, microscopicamente, formados por osso normal.
Karakterisasi Lemak Sapi dan Lemak Babi dalam Bakso Menggunakan FTIR Spectroscopy
Authors: Lora Buana Dienda , Fajriati Imelda
Published: September 2019

Karakterisasi lemak sapi dan lemak babi menggunakan spektroskopi infra merah dilakukan untuk mengetahui profil khas spektra lemak sapi dan lemak babi menggunakan FTIR Spectroscopy, sekaligus mengetahui kemungkinan cemaran lemak babi dalam bakso. Sampel bakso terlebih dahulu di ekstraksi Soxhlet menggunakan pelarut n-heksan dan petroleum eter, serta variasi waktu ekstraksi selama 2 jam, 3 jam, dan 4 jam untuk mendapatkan rendemen ekstraksi optimum. Hasil ekstraksi  selanjutnya diidentifikasi profil spektranya menggunakan FTIR. Rendemen ekstraksi terbanyak didapatkan dengan waktu ekstraksi 2 jam menggunakan pelarut petroleum eter. Hasil karakterisasi dengan FTIR menunjukkan bahwa spektra lemak sapi dan lemak babi sedikit menunjukkan perbedaan pada 3000 – 3010 cm-1, 1172 cm-1 dan 1103 cm-1, dan 960 - 975 cm-1 yang diakibatkan antara lain dari asam lemak trans pada sampel lemak sapi lebih besar daripada lemak babi. Adapun dari sampel bakso yang di uji, sejauh hasil karakterisasi menggunakan pembanding spektra FTIR dari standar lemak babi, tidak didapatkan cemaran lemak babi dalam sampel bakso. Kata kunci: Ekstraksi Soxhlet, lemak sapi dan lemak babi.
PERAN TIPE GAMBAR, TAGAR, JUMLAH LIKES DAN INFORMASI HARGA PADA INSTAGRAM TERHADAP INTENSI MEMBELI
Authors: Sari Hasrini , Anggraeni Lidia
Published: September 2019

Penelitian ini bertujuan untuk mengetahui pengaruh desain visual post Instagram dalam hal tipe gambar, tagar, jumlah likes, dan caption berupa informasi harga, terhadap tingkat atensi visual pemirsa, dan intensi pembelian. Keempat elemen tersebut dihipotesiskan akan mempengaruhi atensi visual pemirsa, dan pada akhirnya mempengaruhi intensi membeli. Metode desain eksperimen digunakan untuk menguji hipotesis dengan alat bantu eye tracker untuk mengukur atensi visual. Instagram dari sebuah perusahaan UKM yang menjual tas tangan (pouch) digunakan sebagai objek penelitian. Delapan stimulus berpasangan (gambar produk dan konsumen) yang merupakan dummy post Instagram dirancang berdasarkan hipotesis penelitian, dan satu pasang stimulus post Instagram yang ada saat ini digunakan sebagai kontrol. Empat puluh partisipan dipaparkan kesembilan stimulus menggunakan pendekatan within subject design. Dari hasil statistik deskriptif, ditemukan bahwa partisipan lebih menyukai tipe gambar produk, dan stimulus yang paling disukai yang menampilkan caption keterangan harga, hashtag serta jumlah likes yang banyak. Uji statistik inferensial menunjukkan adanya perbedaan tipe gambar (gambar produk dan gambar konsumen) dan jumlah likes mempengaruhi tingkat atensi visual pemirsa, serta tidak ada hubungan antara tingkat atensi terhadap tampilan Instagram dengan intensi membeli.  Abstract[Role Of Image Type, Hashtag, Number Of Likes And Pricing Information On Instagram Against Intensi Buying] This research is intended to investigate the influence of visual design of Instagram concerning picture type, hashtag, number of likes, and price information, on intention to buy. These elements are suggested to influence visual attention of the audience, and ultimately influence the intention to buy. Experiment design method is implemented to test the hypotheses using an eye tracker device to measure visual attention. An Instagram post from an SME offering pouch is used as a research object. Eight paired of dummy Instagram posts (the product picture and the consumer picture) are designed to test the research hypotheses, and a pair of existing Instagram post acts as a control stimulus. Forty participants are exposed to all of the stimuli using a within-subject design approach. Descriptive statistic analysis shows that participants like product picture more than consumer, and stimulus containing price information, hashtag, and many likes. Inferential statistic analysis shows that picture type and likes all influence visual attention and no significant relationship between visual attention and intention to buy.Keywords: Intention to buy; visual attention; statistic inferensia; desain eksperimen
Korzystanie z Internetu jako źródło zagrożeń zdrowia i rozwoju dzieci i młodzieży
Authors: KACHLICKA DOROTA
Published: September 2019

Cyberprzemoc to rodzaj agresji zagrażający zdrowiu i ozwojowi dzieci oraz młodzieży. Konsekwencją jej doświadczania są zaburzenia zachowania, lęk, objawy somatyczne, a także samobójstwa wśród nastolatków. W pierwszej części artykułu zdefiniowane zostało zjawisko cyberprzemocy, jej formy i drogi rozpowszechniania. Przedstawiono zaburzenia zagrażające zdrowiu i rozwojowi młodzieży oraz badania z zakresu cyberprzemocy. Część druga stanowi prezentację założeń teoretycznych, które wyjaśniają szkodliwość oddziaływania cyberprzemocy na rozwój nastolatków, zaś trzecia jest propozycją szkolnego programu profilaktycznego chroniącego młodych użytkowników sieci.
Global well-posedness for a class of fourth-order nonlinear strongly damped wave equations
Authors: Lian Wei , Rădulescu Vicenţiu D. , Xu Runzhang , Yang Yanbing , Zhao Nan
Published: September 2019

In this paper, we consider the initial boundary value problem for a class of fourth-order wave equations with strong damping term, nonlinear weak damping term, strain term and nonlinear source term in polynomial form.
First, the local solution is obtained by using fix point theory.
Then, by constructing the potential well structure frame, we get the global existence, asymptotic behavior and blowup of solutions for the subcritical initial energy and critical initial energy respectively.
Ultimately, we prove the blowup in finite time of solutions for the arbitrarily positive initial energy case.
Ricci almost solitons and contact geometry
Authors: Ghosh Amalendu
Published: September 2019

We prove that on a K-contact manifold, a Ricci almost soliton is a Ricci soliton if and only if the potential vector field V is a Jacobi field along the Reeb vector field ξ. Then we study contact metric as a Ricci almost soliton with parallel Ricci tensor. To this end, we consider Ricci almost solitons whose potential vector field is a contact vector field and prove some rigidity results.
A Simple and Procedurally Fair Game Form for Nash Implementation of the No-Envy Solution
Authors: Hagiwara Makoto
Published: September 2019

We consider the allocation problem of infinitely divisible resources with at least three agents. For this problem, Thomson (Games and Economic Behavior, 52: 186-200, 2005) and Doğan (Games and Economic Behavior, 98: 165-171, 2016) propose “simple” but not “procedurally fair” game forms which implement the “no-envy” solution in Nash equilibria. By contrast, Galbiati (Economics Letters, 100: 72-75, 2008) constructs a procedurally fair but not simple game form which implements the no-envy solution in Nash equilibria. In this paper, we design a both simple and procedurally fair game form which implements the no-envy solution in Nash equilibria.
Denitrification performance of rare earth tailings-based catalysts
Authors: Wang Zhenfeng , Huang Yanan , Luo Huijuan , Gong Zhijun , Zhang Kai , Li Na , Wu Wenfei
Published: September 2019

Rare earth tailings from the Bayan Obo mine are rich in rare earth, iron, and other catalytically active substances. In this study, Na2CO3 and Ca(OH)2 were mixed with rare earth tailings, roasted, and the tailings modified by HCl-citric acid leaching and pickling to prepare high-performance rare earth tailings-based denitrification catalysts. Denitrification performance tests show that, in the temperature range 700°C~900°C, the alkali and acid co-processed modified tailings sample gave the best catalytic denitrification performance. XRD, SEM, and H2-TPR analyses show that, compared with raw ore samples, Fe activity sites increased after alkali and acid co-treatment. Cracks and holes appeared on the surface of the sample, and the reduction temperature range was broadened. XPS analysis showed that Fe coexisted in the forms Fe2+ and Fe3+, and Ce in the forms Ce3+ and Ce4+. At a rare earth tailings microwave roasting temperature of 500°C, NO concentration of 500 ppm, CO/NO ratio 4:1, and reaction temperature of 900°C, the denitrification efficiency of the catalyst was optimal, at up to 96.2%. In this study, a relatively green and pollution-free method was used to prepare catalysts, which can provide reference for solving the problem of rare earth tailings accumulation.
Facile synthesis of silver nanoparticles using Averrhoa bilimbi L and Plum extracts and investigation on the synergistic bioactivity using in vitro models
Authors: Sagadevan Suresh , Vennila Selvaraj , Singh Preeti , Lett Jayasingh Anita , Johan Mohd Rafie , Marlinda Ab Rahman , Muthiah Bavanilatha , Lakshmipathy Muthukrishnan
Published: September 2019

The bacterial communities (Gram-negative and Gram-positive) form the biofilms which oppose the mode of action of antibiotics and affecting the immune system of the human. These chronic infections related to biofilm are always hard to be cured because of their inherent resistance to both antimicrobial agents and host defense. The present study is devoted to the synthesis of silver nanoparticles (AgNPs) using aqueous extracts ofAverrhoa bilimbileaf and Plum fruit (Prunus bokharensis) and its inhibitory effect onStaphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, andSalmonella typhi. Here, AgNPs) were successfully prepared by green synthesis method obtained by the reduction of silver nitrate into silver ions. The synthesized AgNPs were characterized by UV-Vis Spectroscopy, XRD, FTIR, FESEM-EDAX and DLS analysis. The antimicrobial effects of the two extract were evaluated by the disk diffusion method. The green synthesized AgNPs exhibited good antibacterial activity against both Gram-negative and Gram-positive. They were also analyzed for their significant antibacterial activities against all the test cultures exposed whereasEscherichia coliandSalmonella typhitopped among other test cultures. The anti-proliferative activity of phytochemical mediated synthesis of Ag NPs was investigated for their cytotoxicity in Vero and Human epidermoid larynx carcinoma cell lines (HEp-2) based on their viability using MTT assay. The present study also represents the synergistic bioactivity of silver nanoparticles using in vitro models.
Green production of AgNPs and their phytostimulatory impact
Authors: Wagi Shabana , Ahmed Ambreen
Published: September 2019

Nanoparticles are smaller than nuclei having large surface area and more reactivity. Green production of metals and metal oxide nanoparticles is a benign and sustainable approach. Present work deals with the green production and optimization of nanoparticles by using indigenous plant growth promoting bacteria. Four different methods were used for silver nanoparticles (AgNPs) synthesis, i.e. extracellular, intracellular, oven assisted and extended incubation period. With extended incubation period AgNPs production improved. The nanoparticles synthesized were then applied to Triticum aestivum L. and their phytostimulatory impact was evaluated. The results revealed the growth promotional ability of nanoparticles. It is concluded that nanoparticles stimulate growth of Triticum aestivum L. with significant improvement in shoot length, root length, number of leaves and fresh weight. Thus in the present work we report environmentally benign nanoparticles exhibiting phytostimulatory potential. Biosynthesis of AgNPs by bacteria is a safe easy, less time consuming and economical approach which can be utilized as an alternative method to conventional chemical and physical approaches. Biosynthesized AgNPs can be effectively utilized as environment friendly nanofertilizers for plant growth promotion.
Coupling of import and assembly pathways in mitochondrial protein biogenesis
Authors: Grevel Alexander , Pfanner Nikolaus , Becker Thomas
Published: September 2019

Biogenesis and function of mitochondria depend on the import of about 1000 precursor proteins that are produced on cytosolic ribosomes. The translocase of the outer membrane (TOM) forms the entry gate for most proteins. After passage through the TOM channel, dedicated preprotein translocases sort the precursor proteins into the mitochondrial subcompartments. Many proteins have to be assembled into oligomeric membrane-integrated complexes in order to perform their functions. In this review, we discuss a dual role of mitochondrial preprotein translocases in protein translocation and oligomeric assembly, focusing on the biogenesis of the TOM complex and the respiratory chain. The sorting and assembly machinery (SAM) of the outer mitochondrial membrane forms a dynamic platform for coupling transport and assembly of TOM subunits. The biogenesis of the cytochrome c oxidase of the inner membrane involves a molecular circuit to adjust translation of mitochondrial-encoded core subunits to the availability of nuclear-encoded partner proteins. Thus, mitochondrial protein translocases not only import precursor proteins but can also support their assembly into functional complexes.
CFD Study on the Flow Field and Power Characteristics in a Rushton Turbine Stirred Tank in Laminar Regime
Authors: Liangchao Li , Ning Chen , Kefeng Xiang , Beiping Xiang
Published: September 2019

A computational fluid dynamics (CFD) simulation was performed to study the hydrodynamics characteristics in a Rushton turbine stirred tank in laminar regime. The effects of operating condition, working medium and geometrical parameter on the flow field and power number characteristics were investigated. It is found that the two-loop flow pattern is formed in laminar regime when the impeller is not very close to tank bottom, while its shape and size vary with Reynolds number and impeller diameter. For a given geometrical configuration, the flow pattern, power number and dimensionless velocity profile are mainly depended on Reynolds number, and do not change with working medium and scale-up for a constant Reynolds number. When impeller off-bottom clearance is too low and Reynolds number is relatively high, the fluid flow would transit from two-loop flow pattern to sing-loop flow pattern as that occurs in turbulent regime. Power number falls for larger impeller in laminar regime. Surprisingly, in laminar regime, power number in the baffled tank with small impeller is almost identical to that in the unbaffled tank.
Pullulan – Biopolymer with Potential for Use as Food Packaging
Authors: Kraśniewska Karolina , Pobiega Katarzyna , Gniewosz Małgorzata
Published: September 2019

The materials used in food packaging based on non-biodegradable synthetic polymers pose a serious threat of pollution to the environment. Hence, research is now focused on developing eco-friendly and biodegradable packaging obtained from natural polymers. Pullulan is a microbial exopolysaccharide, obtained on a commercial scale by the yeast-like fungus Aureobasidium pullulans. It is a water-soluble, non-toxic and non-mutagenic edible biopolymer with excellent film-forming abilities and adhesive properties. Furthermore, pullulan presents great potential to fabricate thin, transparent, odorless and tasteless edible films and coating used as packaging material. This review article presents an overview on the basic mechanical and barrier properties of a pullulan-based film. It also describes the modification methods applied in order to obtain multifunctional materials in terms of satisfactory physico-mechanical performance and antimicrobial activity for food packaging.
Effects of Vacuum Ohmic Evaporation on Some Quality Properties of Sour Cherry Juice Concentrates
Authors: Sabancı Serdal , Icier Filiz
Published: September 2019

Sour cherry juice (SJ) having total soluble solid (TSS) content of 19.2 % was concentrated to 65 % TSS by applying vacuum ohmic evaporation (VOE) and vacuum evaporation (VE) methods under constant absolute pressure (25 kPa). Total monomeric anthocyanin content (TMAC) of sour cherry concentrate (65 % TSS) was found in the range of 1561.67–1777.38 mg/L whereas total phenolic content (TPC) varied in the range of 9,071.22–78,347.53 mg/L concentrate. TPC and TMAC values of juice concentrates were affected less from VOE process compared to VE (p < 0.05) while there was no significant difference between the total antioxidant activities of SJ concentrates obtained by both methods (p > 0.05). TMAC and TPC values increased as the voltage gradient applied increased (p < 0.05). VOE process preserved the color properties of juice concentrates better compared to the VE process. It was concluded that VOE method could be an alternative fast evaporation method to obtain high-quality fruit juice concentrates.
Significance of Temperature and Humidity Control for Agricultural Products Storage: Overview of Conventional and Advanced Options
Authors: Mahmood Muhammad Hamid , Sultan Muhammad , Miyazaki Takahiko
Published: September 2019

The agricultural products are perishable in nature and possesses short shelf/storage life under ambient conditions. The temperature and humidity control systems are required to enhance to storage life of the products with optimum quality, quantity and nutritive attributes. In this regard, the significance of air-conditioning in storage application is highlighted along with the conventional storage options. The implications of compressor-based refrigeration and air-conditioning systems regarding low-cost and energy efficient air-conditioning systems are discussed in detailed. It is concluded that thermally driven air-conditioning systems can be used on top priority for the short-term storage of fresh agricultural products. Moreover, the long-term storage of products at freezing temperature can be made through hybrid systems instead of standalone conventional compressor based vapor compression refrigeration and/or air-conditioning systems. Finally, the air-conditioning systems are proposed for the optimum storage of different categorize of the food products.
Effect of Thermophysical Property Variation on Entropy Generation towards Micro-Scale
Authors: Chauhan Prathvi Raj , Kumar Krishan , Kumar Rajan , Rahimi-Gorji Mohammad , Bharj Rabinder Singh
Published: September 2019

In this work, the effect of temperature-dependent thermal conductivity (k(T)) and viscosity (\mu (T)) variation on entropy generation in circular channels with an approach from macro- to micro-scale is numerically investigated. Thermally as well as hydrodynamically fully developed flow of water through the fixed length channels with constant total heat flow rate and total mass flow rate is considered. The effects of k(T) variation and \mu (T) variation on entropy generation are analyzed individually as well as collectively. It is observed that in the case of Constant Property Solutions (CPS) {S_{\mathit{gen},\mathit{tot}}} is maximum at the macro-level; however, in the case of combined k(T) and \mu (T) variations it is maximum at the micro-level. The Bejan number (\mathit{Be}) and irreversibility distribution ratio (φ) are also calculated for asserting the dominance of frictional irreversibility and conduction heat transfer irreversibility. Additionally, the optimum diameter ({D^{\ast }}) corresponding to the optimum number of channels is calculated at minimum total entropy generation. It is observed that {D^{\ast }} is minimum for k(T) variation followed by CPS, \mu (T) variation, and combined k(T) and \mu (T) variations.
Recommended changes of the current version of the German Rili-BAEK
Authors: Beier Christian
Published: September 2019

A number of improvement proposals and corrections of the German Rili-BAEK (Guideline of the German Medical Association on Quality Assurance in Medical Laboratory Examinations) are discussed with special focus on the internal and external quality assurance (IQA/EQA) as well as reference intervals for quantitative results. Particular attention is paid to reconsider the retrospective analysis of control measurements. Such an analysis can be very useful to monitor establishing errors of measurement even before they become critical. The present method “Quadratischer Mittelwert der Messabweichung (QMMA)” has proved to be ineffective. Furthermore, the current idea of a common limit for single control measures and the retrospective statistics must be revised. As a more sophisticated concept, the novel Adaptive Retrospective Monitoring (ARM) has been developed. ARM is recommended as the new minimum requirement for the entire internal quality assurance. Further proposals to enhance clarity are given concerning the release decisions of medical devices and the EQA. Individualized medicine begins with a patient-specific interpretation of analytic results. This requires standardized subgroup-specific reference intervals with smooth age-related adaptations. Only large laboratories are able to ensure the desired specificity and a sufficient statistical significance of self-developed in-laboratory reference intervals. Hence, the need of a central database for harmonized reference intervals is discussed and recommended. Suitable and consistent reference intervals are also an essential prerequisite for unitless laboratory values like the zlog value.
De la consecución a la contraexpectación: la construccionalización delograr/conseguir+ infinitivo
Authors: Rosemeyer Malte , Garachana Mar
Published: September 2019

Este artículo describe el desarrollo histórico de las construccioneslograr/conseguir+inf(p. ej.,Pedro ha logrado ganar el premio). Basándonos en el análisis de casi 3000 ocurrencias fechadas entre 1700 y 2005, mostramos quelograr/conseguir+infhan experimentado un proceso de construccionalización, por el cual, desde significados de consecución o logro, adquirieron lecturas modales de capacidad (‘ser capaz de hacer X’) y contraexpectación (‘es difícil que suceda X’). Utilizando la herramienta de la regresión logística, comprobamos que el aspecto y la polaridad oracional fueron de importancia crucial para este proceso debido a la estructura presuposicional del concepto de ‘consecución’. El análisis, además, arroja luz sobre la cuestión de la alternancia entre los auxiliares cuasi sinónimoslograryconseguir, demostrando (a) que la construccionalización se implementó más paraconseguir+infque paralograr+infy (b) que la alternancia está en parte gobernada por la variación diatópica y diafásica. Finalmente, discutimos la relación entre la construccionalización y el concepto de perífrasis que se maneja en la gramática hispánica tradicional y proponemos que la construccionalización es un mejor indicador del estatus categorial de las construcciones verbales.
Language ideologies, family language policy, and a changing societal context in Kansas
Authors: Showstack Rachel , Colcher Drew
Published: September 2019

This paper examines the language ideologies among parents of Mexican family origin from Garden City, Kansas, and considers the ways in which Latinxs from different sociolinguistic generations have responded to an evolving societal context when making decisions about language use within the family. The analysis is based on 24 video-recorded interviews with parents of Mexican family background who reside in Garden City, a rural town in western Kansas where the majority of the population is of Hispanic origin. Drawing from the linguistic anthropological notion of ‘language ideologies’ and the framework of family langauge policy, the study examines (a) the ideologies that the participants express about the value of Spanish and particular varieties of Spanish in Kansas and (b) how they make reference to local language policies and personal beliefs and attitudes when describing their home language policies. The analysis reveals that local language policies and the availability of resources can dramatically influence the ways in which participants’ linguistic policies and practices reflect their ideological positionings. Findings suggest that there is a need to expand resources for emergent bilinguals and multilingual families in the region.
Konzeptionierung einer Totlastanlage zur Darstellung der Kraft auf Basis der Messunsicherheitsbetrachtung
Authors: Buchner Christian , Manlik Manuela
Published: September 2019

Jedes Nationale Metrologieinstitut ist verpflichtet, für die gesetzlichen Maßeinheiten (entsprechend der SI-Einheiten) den nationalen Etalon der Messnormale bereit zu halten, dessen internationale Vergleichbarkeit und Anerkennung sicherzustellen und die Maßeinheiten durch Kalibrierungen von Bezugs- und Arbeitsnormalen für Wirtschaft und Industrie weiterzugeben. Basierend auf den Vorgaben und Rahmenbedingungen des Bundesamtes für Eich- und Vermessungswesen (BEV) wurde für die Realisierung der Maßeinheit Newton eine Anlage entwickelt und umgesetzt, die die Einheit der Kraft direkt aus der Masse ableitet und realisiert. In Kooperation mit dem Institut für Fertigungstechnik und Hochleistungslasertechnik (IFT) der Technischen Universität Wien wurde eine Totlastanlage im Bereich weniger N bis MN als primäre Kraftnormalanlage als nationales Normal der Kraft geschaffen. Im Rahmen einer Dissertation [1] wurde dabei Schritt für Schritt die Analyse der Vorgaben und mittels grundlegender Betrachtung der zu erwarteten Messunsicherheit die Erstellung eines detaillierten Anforderungskataloges beschrieben. Basierend auf einer detaillierten Messunsicherheitsbetrachtung des Verfahren selbst wurde ein Konzept einer Anlage abgeleitet, das geeignet ist, eine derartige Konstruktion zu schaffen, die alle anlagenspezifischen Messunsicherheitsanteile minimiert. Dabei wurden systematisch alle Beiträge zur Messunsicherheit betrachtet und daraus die Grenze des technisch Möglichen ausgelotet. Als übergeordnetes Ziel wurde dabei angestrebt, die Kraft rein linear in Messachse darzustellen, und jegliche Störeinflüsse wie z. B. Querkräfte, Einflüsse von Umgebungsbedingungen oder dergleichen zu minimieren. Zur Erreichung des Zieles der Umsetzung einer derartigen Kraftnormalanlage wurde zum Teil auf Methoden zurückgegriffen bzw. wurden Lösungen ausgearbeitet, die, verglichen mit bestehenden Realisierungsmöglichkeiten der Kraft, Modifikationen enthalten und Weiterentwicklungen darstellen. Bereits in [1] und [2] konnte detailliert gezeigt werden, wie abweichend von herkömmlichen und gleichwertigen Anlagen auftretende Störgrößen kompensiert oder in ihrer Messunsicherheit reduziert werden konnten, so dass man auf die Berücksichtigung dieser Störgrößen, wie sie durch internationale Kalibrierrichtlinien geregelt sind, bei der Auswertung und der dazugehörenden Messunsicherheitsbetrachtung verzichten kann. Durch Zusammenführung und Interpretation der Messergebnisse wurde bei internationalen Vergleichsmessungen [3] die Prozessfähigkeit und Eignung der neuen Anlage belegt und ihre Einsatzfähigkeit nachgewiesen. Mit der Darlegung dieser Nachweisführung wurde die Grundlage für die im Rahmen des CIPM-MRA-Abkommens [9] internationale Anerkennung der Messergebnisse und der vom BEV ausgestellten Zertifikate erbracht.