bluuebunny/crossref_metadata_2025 huggingface dataset:
QUANTIFICAÇÃO DE COMPOSTOS BIOATIVOS EM FRUTOS DE UMBU (Spondias tuberosa Arr. Câm.) e CAJÁ (Spondias mombin L.) NATIVOS DE ALAGOAS.
Authors: Dos Santos Everton Ferreira , De Araújo Rychardson Rocha , De Lemos Eurico Eduardo Pinto , Endres Laurício
Published: May 2018

O umbuzeiro e a cajazeira são espécies frutíferas nativas de caráter extrativista de ocorrência no Nordeste brasileiro, que desempenham importante fonte de renda para as populações nos locais onde ocorrem. Seus frutos apresentam características de qualidade que os fazem ser muito apreciados tanto para o consumo in natura como para a fabricação de sucos, doces, geleias e sorvetes. No entanto, são espécies frutíferas ameaçadas de extinção devido à exploração irracional nos locais onde ocorrem, carecendo de estudos que tenham por objetivo sua domesticação e desenvolvimento de tecnologias que viabilizem a instalação de pomares comerciais. Verifica-se que praticamente inexistem informações na literatura sobre os constituintes bioativos destas espécies, sendo parâmetros importantes de qualidade, pois contribuem para inserção destes no mercado frutícola como produto diferenciado. Desta forma, o trabalho teve como objetivo quantificar os teores de antocianinas, flavonoides, pectina total e pectina solúvel em frutos de S. tuberosa Arr. Câm. e S. mombin L. procedentes da vegetação nativa do Estado de Alagoas. Foram quantificados os teores de antocianinas, flavonoides, pectina solúvel e pectina total. O fruto de umbu apresentou maior teor de antocianinas totais com valor médio de 1,65 ± 0,47 mg.100g-1, sendo que o fruto de cajá apresentou maior conteúdo de flavonoide totais com teor médio de 9,50 ± 0,71 mg.100g-1. Com relação aos teores de substâncias pécticas o fruto de umbu apresentou maior rendimento médio de pectina solúvel e pectina total, com valores de 28,64 ± 2,47% e 26,26 ± 4,35%. Os frutos das duas espécies de fruteiras nativas de Alagoas analisados apresentam em sua composição substancial conteúdo de substâncias com propriedades funcionais, constituindo-se em uma fonte potencial de antioxidantes naturais para a dieta humana. Eles também apresentaram bons teores de pectina total e solúvel, indicando seu potencial tanto para o consumo in natura quanto para o processamento agroindustrial.
Reação de cultivares de coentro ao nematoide das galhas
Authors: Matos Martins Diniz Guilherme , Sandes de Carvalho Filho José Luiz , Gomes Luiz Antônio Augusto , De Oliveira Cleiton Lourenço , Teixeira Chagas Wantuir Filipe , Da Silva Santos Lucas
Published: May 2018

O controle do nematoide das galhas em diversas culturas tem sido feito com a utilização de produtos químicos. Porém, a utilização de cultivares resistentes para diversas espécies de olerícolas tem mostrado ser uma importante alternativa no controle deste patógeno. O objetivo dessa pesquisa foi de avaliar a reação de cultivares de coentro para resistência a Meloidogyne incognita, raça 1 e 3, e ao Meloidogyne javanica. O experimento foi conduzido em casa de vegetação nas dependências da HortiAgro® Sementes Ltda., em Ijaci, MG, de outubro a dezembro de 2011. Foram avaliadas seis cultivares de coentro: Português, Tabocas, Tapacurá, Verdão, Palmeira e HTV-9299, em três tipos de inóculo, M. incognita, raça 1 e 3, e M. javanica. O delineamento experimental foi em blocos casualizados, com seis repetições para cada inóculo. Foram avaliadas as características: número de massa de ovos, número de ovos, o fator de reprodução (FR). A partir dos valores de FR obtidos, avaliou-se a reação da cultivar, em que FR ≤ 1,0 = hospedeiro pouco ou não eficiente; FR > 1,0 = hospedeiro eficiente e a sua caracterização, como a resistência a M. incognita, raça 1 e 3, e M. javanica.  É viável a caracterização de cultivares de coentro para resistência aos patógenos com a utilização das características incidência de galhas, o número de galhas, o número de massas de ovos e número de ovos. As cultivares foram suscetíveis a M. incognita raça 1 e resistentes a M. incognita raça 3 e M. javanica. A seleção de plantas com notas 1 e 2 dentro das cultivares para todas as características estudadas proporcionará a obtenção de cultivares com níveis de resistência superiores.
CARACTERIZAÇÃO MORFOLÓGICA E PRODUTIVA E SUAS CORRELAÇÕES EM CULTIVARES DE CANA-DE-AÇÚCAR
Authors: Maia Júnior Sebastião de Oliveira , Silva João Antônio Carvalho , Santos Karoliny Priscila Oliveira , Andrade Jailma Ribeiro de , Silva José Vieira , Endres Laurício
Published: May 2018

A cana-de-açúcar é uma das culturas agrícolas mais importantes do mundo, sendo a principal matéria-prima para produção de açúcar e bioenergia. O presente estudo teve como objetivo avaliar características morfológicas e produtivas e suas correlações em diferentes cultivares de cana-de-açúcar. Foram avaliadas seis cultivares de cana-de-açúcar: RB72910, RB99382, RB72454, RB855536, RB92579 e RB931011. As avaliações foram feitas mensalmente dos 60 aos 240 dias após o plantio. Foram avaliadas características morfológicas e produtivas, e posteriormente correlacionadas dentro de cada época e de cada cultivar. As cultivares RB931011 e RB92579 foram mais altas até os 210 DAP, e ainda tiveram maior peso de colmos e maior largura das folhas, respectivamente. A RB72454 teve o maior diâmetro do colmo e menor perfilhamento. Em todas as cultivares houve correlação da altura da planta com o diâmetro do colmo, a área foliar, o comprimento e a largura da folha. O perfilhamento tem correlação negativa com o diâmetro do colmo e o teor de sólidos solúveis, enquanto que, o diâmetro do colmo tem correlação positiva com o teor de sólidos solúveis e o peso de colmos. A área e a largura foliar são bons parâmetros na seleção de cultivares promissoras de cana-de-açúcar, por terem fortes correlações com a produção de colmos.
COMPACTION AND WATER INFILTRATION CAPACITY OF A CAMBISOL BY THE TRAFFIC OF MACHINES AND CATTLE TRAMPLING
Authors: Deon Romeu Cezar , Zilli Douglas , Brandelero Guilherme , Goulart Machado Rafael
Published: May 2018

A intensificação da exploração agrícola dos solos, com o transito frequente de máquinas agrícolas de crescente incremento de peso e o pisoteio de bovinos, em condições inadequadas de umidade do solo vem promovendo um estado de compactação dos solos e a perda da capacidade de infiltração e de retenção de água. O objetivo do presente trabalho foi dimensionar a compactação de um Cambissolo muito argiloso, bem como a velocidade de infiltração de água, em uma condição de compactação induzida pelo tráfego de trator agrícola e pelo pisoteio de bovinos, com solo em condição de umidade de campo e em condição de solo úmido. Após os tráfegos para indução da compactação do solo, foram aferidas a densidade do solo, a porosidade total, a velocidade de infiltração básica da água (VIB) no solo e a infiltração acumulada da água no solo. Foi observado incremento na densidade do solo nos tratamentos tráfego de trator em solo úmido e tráfego de bovino em solo úmido. Foi observada redução da VIB onde houve compactação do solo por tráfego de trator em solo úmido. A compactação observada em solo úmido, por trânsito de trator ou pisoteio de bovinos, induziu aumento na densidade do solo o que está diretamente relacionado à redução da porosidade total do solo. Estas alterações na proporção das fases sólida e gasosa do solo, frequentemente estão associadas a restrições ao crescimento radicular das plantas, restrições à infiltração e ao acúmulo de água no solo, bem como à maior suscetibilidade dos solos à erosão.
SUBSTRATOS E TAMANHOS DE RECIPIENTE NA PRODUÇÃO DE MUDAS DE BARUZEIRO (Dipteryx alata Vog.)
Authors: Pinho Erika Katianne Costa , Lopes Annanda Nicole Kasper , Costa Ana Claudia , Silva Aline Borges Vilela , Vilar Flávia Caroline Moreira , Reis Rodrigo de Goes Esperon
Published: May 2018

O baruzeiro (Dipteryx alata Vog.) é uma árvore frutífera da família Leguminoseae disseminada no Bioma Cerrado, que apresenta vários aspectos de interesse econômico (madeira, frutos, sementes), porém, a exploração da espécie ainda é extrativista, sendo as pesquisas relacionadas à propagação fundamentais para o seu cultivo comercial. O presente trabalho teve como objetivo avaliar diferentes substratos e tamanhos de recipiente na produção de mudas de baruzeiro (Dipteryx alata Vog.). O experimento foi conduzido no Viveiro de Mudas da Universidade do Estado de Mato Grosso – UNEMAT, no município de Nova Xavantina – MT, no período de junho a julho de 2017. O delineamento experimental utilizado foi em blocos casualizados (DBC), em esquema fatorial 3 (substratos) x 2 (tamanhos de recipiente), com seis tratamentos, quatro repetições e dez plantas por parcela. Os tratamentos foram: T1 - solo + recipiente de 3,8 dm³; T2 - solo + recipiente de 1,8 dm³; T3 - solo e esterco bovino + recipiente de 3,8 dm³; T4 - solo e esterco bovino + recipiente de 1,8 dm³; T5 - substrato comercial + recipiente de 3,8 dm³; T6 - substrato comercial + recipiente de 1,8 dm³. As características agronômicas avaliadas foram: altura de plantas, diâmetro do caule, número de folhas e folíolos, massa fresca e seca da parte aérea e do sistema radicular e índice de qualidade de Dickson. De acordo com os resultados obtidos, houve diferença estatística entre os recipientes avaliados apenas para a característica altura de planta, destacando-se aquelas produzidas em recipientes menores (1,8 dm³). Com relação aos substratos, verificou-se maior crescimento das mudas nos tratamentos contendo apenas solo e substrato comercial, podendo ser utilizados na produção de mudas de baruzeiro.
Using the Literature to Identify Confounders
Authors: Malec Scott
Published: May 2018

We introduce an approach to causal modeling that uses Literature-Based Discovery (LBD) to identify salient domain knowledge in observational data. Causal models represent a marriage between graph theory, probability, and domain knowledge. We hypothesize that the LBD paradigm can be applied to identify variables of interest for the automated construction of causal models of observational data, and that causal models thus informed will improve upon the performance of purely statistical techniques. We evaluated our hypothesis with a pharmacovigilance (PV) use case. In PV, the task is to discriminate between drug/side-effect signals and noise. We analyzed observational clinical data derived from electronic health records (EHR) and constructed causal models. We used logistic regression coefficients as our baseline and calculated estimated controlled direct effect from the LBD-informed causal models. Causal models improved upon unadjusted statistical models by 8.64% using Area under the Curve of the Receiver Operating Characteristic. Improving upon previous work in PV using EHR as the primary data source, our results establish the utility of the approach.
Denetimlerde Büyük Veri Kullanımı Ve Üzerine Bir Değerlendirme
Authors: Özdemir İlhan , Sağıroğlu Şeref
Published: May 2018

Güncel denetim standartları, veri analizinin denetimlerde
kullanılmasının denetimi geliştirmek ve görevi tamamlamak için gereken zamanı
azaltmak amacıyla kullanılabileceğini belirtse de, denetimlerde büyük veri ve
analitiklerinin nasıl kullanılabileceğine yönelik kapsamlı bir denetim rehberi
bulunmamaktadır. Bu durum denetim elemanlarının bu tür teknolojileri
denetimlerinde kullanma konusunda olumsuz düşünme ve gereken adımları
atamamalarına neden olmaktadır. Bu çalışma ile, denetim elemanlarına ilk kez
önerilen bir denetim metodolojisi ışığında, denetimlerde büyük veri ve
analitiklerini nasıl kullanılabileceklerine yönelik açık, yol gösterici bir
denetim rehberinin oluşturulması amaçlanmaktadır.

Bu çalışmada ayrıca, büyük veri ve büyük veri analitiği
incelenmiş, temel unsurları gözden geçirilmiş, kurumlar için önemi vurgulanmış,
daha etkin, verimli ve ekonomik denetimlerin nasıl yapılabileceği
açıklanmıştır. Denetimlerde büyük veri analitiğinden nasıl faydalanılabileceği,
yeterli planlama ve uygun kaynaklarla büyük veri analitiğinin denetimlere nasıl
entegre edebileceği, elde edilebilecek kazanımlar ve karşılaşılabilecek
olumsuzlukların neler olabileceği gibi hususlara cevaplar aranılmıştır. Elde
edilen sonuçlar, büyük veri ve analitiklerinin denetimlerde kullanılması
sonucunda ortaya çıkarılacak denetim kanıtları ile denetimlerin kurumlara daha
fazla katma değer sağlayabileceğini göstermektedir. Daha derin, kapsamlı,
akıllı ve hızlı denetim faaliyetlerinin gerçekleştirilebilmesi için sistematik
denetim metodolojilerinin geliştirilmesine ve uygulanmasına ihtiyaç vardır.
Performance of low rise concealed truss composite shear walls with external columns
Authors: Zhang Dan , Tao Zhong , Zhang Lei
Published: May 2018

A review on the previous studies shows that limited analytical or experimental studies on the low-rise concealed truss shear walls with external columns under monotonic loading have already been conducted. The combination of concealed truss was welded to I-shaped steel frame and flat steel support. Two different aspect ratio composite shear walls
were tested under static monotonic loading, and the failure mode, bearing capacity, ductility and stiffness were explored. A finite element model was developed and used to simulate the composite shear walls under constant axial load and lateral loading. The comparison of test
results confirmed that the finite element model could predict the behavior of composite shear walls accurately. Meanwhile, stress analyses of the specimens were studied to simulate stress distribution of reinforcement, and to analyze the steel of composite shear wall with external columns at different loading stages. Taken together, this study
could be a basis for developing an accurately simplified model.
Comparation of the analytical and experimental models of 304SS corrosion rate in 0.5 m H2SS4 with bee wax propolis extract
Authors: Suprapto Wahyono , Soenoko Rudy , Gapsari Femiana
Published: May 2018

Corrosion in the reservoir and transport vessel often causes a leak that
leads to disaster. Data prediction and experimental corrosion in storage technology is very important to prevent damage and reduce maintenance costs. Theoretically, steel tank corrosion by sulfuric acid working medium can be minimized with the formation of sediments oxide by
oxidation-reduction reaction. Behavioral inhibition of bee wax propolis
on the 304SS in 0.5 M sulfuric acid was carried by potentiodynamic polarization. Based on the polarization testing the corrosion rate of the 304SS in a solution of 0.5 M H2SO4 is at 0.349 g/m2d with the missing mass amounted 5.21 x10 -9 g/s. In experiments, the inhibitor causing less mass loss is equal to 2.28 x 10 -11 g/s. Mass lost without and with inhibitor in this study is also known by theoretical calculations. The mass losses can be used to determine the inhibition efficiency. The calculation of the efficiency theoretically and experimentally gives the same result.
Design of hybrid power generation systems connected to utility grid and natural gas distribution network
Authors: Mekhamer Said , Abdelaziz Almoataz , Algabalawy Mostafa
Published: May 2018

Hybrid power generation system (HPGS) is an active research area, which is in need of a continuous improvement. It represents the best solution for the most complex problems facing the world in the last decades. These problems are known as the shortage of energy, or lack of electricity, which logically are the results of the continuous increasing demand. Therefore, the researchers do their best to overcome all expected roadblocks facing the development, where the most applicable solutions to solve these problems are introduced. In this paper, the HPGS includes; wind turbine (WT), photovoltaic (PV), storage battery (SB), gas turbine (GT), and utility grid (UG). The GT of this system is fueled directly from the natural gas distribution network considering all operational conditions of it, which may be affected by fueling the natural gas for the GT. So, the natural gas distribution network is becoming an important component of the HPGS, and it is included in the HPGS for the first time. Multi meta-heuristic optimization techniques are applied to obtain the components sizing of this system, where cuckoo search algorithm (CSA), firefly algorithm (FA), and flower pollination algorithm (FPA) have been applied. Therefore, this paper introduces a new contribution not only to the new configuration of the HPGS, but also in applying the new optimization techniques as solving tools. The output results are compared to show the
effectiveness and the superiority of the applied techniques as well as extract a recommendation for the best solving technique.
Treatment Effects on Ordinal Outcomes: Causal Estimands and Sharp Bounds
Authors: Lu Jiannan , Ding Peng , Dasgupta Tirthankar
Published: May 2018

Assessing the causal effects of interventions on ordinal outcomes is an important objective of many educational and behavioral studies. Under the potential outcomes framework, we can define causal effects as comparisons between the potential outcomes under treatment and control. However, unfortunately, the average causal effect, often the parameter of interest, is difficult to interpret for ordinal outcomes. To address this challenge, we propose to use two causal parameters, which are defined as the probabilities that the treatment is beneficial and strictly beneficial for the experimental units. However, although well-defined for any outcomes and of particular interest for ordinal outcomes, the two aforementioned parameters depend on the association between the potential outcomes and are therefore not identifiable from the observed data without additional assumptions. Echoing recent advances in the econometrics and biostatistics literature, we present the sharp bounds of the aforementioned causal parameters for ordinal outcomes, under fixed marginal distributions of the potential outcomes. Because the causal estimands and their corresponding sharp bounds are based on the potential outcomes themselves, the proposed framework can be flexibly incorporated into any chosen models of the potential outcomes and is directly applicable to randomized experiments, unconfounded observational studies, and randomized experiments with noncompliance. We illustrate our methodology via numerical examples and three real-life applications related to educational and behavioral research.
Fluvial morphology and dynamics of the Godavari Khola, southeast Kathmandu, Central Nepal
Authors: Karki Swarup Singh , Tamrakar Naresh Kazi
Published: May 2018

The Godavari Khola flowing from the south to the north contributes the Hanumante Khola, which is one of important tributaries of the Bagmati River, flowing from the eastern part of the Kathmandu Basin. Recently, the Godavari Khola has been suffering from human encroachments due to rapid urbanization. Studying nature and dynamics of the stream are important works if the stream has to be made less affected and well managed. The present study aims to establish fluvial morphology and stability status of the Godavari Khola. For these purposes, the watershed was analysed for morphometric parameters and planform fluvial morphology, and thirteen representative segments were surveyed from upstream to downstream of the Godavari Khola for recording and analysing sediment properties, stream cross-sections and profiles, and hydraulic parameters, river dynamics and stability.The Godavari River is a fifth order stream, the two upstream segments of which are bedrock channels, and the rest of the segments are alluvial channels. The segments are classified into six kinds such as C4-, C5-, B3-, B4-, E4- and F4-type streams. The upstream segments are of B4-, B3- and ‘F4’-types which show entrenched, steep, gravel to cobble grade streams. The downstream segments are of C4-, C5-, E4- and F4-types showing non-entrenched to low entrenched streams with gentle slopes, high sinuosity and gravel to sand grade bed materials. The stability status of the Godavari Khola shows that the stream segments 1, 2, 11 and 13 lie in the degrading condition whereas the remaining nine segments lie in the aggrading condition. Because of the huge width/depth ratio in majority of the downstream channels, bank erosion is relatively prone in the downstream segments of the Godavari Khola, whereas bed incision is prone in segments 11 and 13.Bulletin of the Department of Geology, Vol. 19, 2016, pp. 15–28
Effects of ENSO on cold-air activities and tropical cyclones in Vietnam
Authors:   Centre for Hydro - Meteorological, Environmental Sciences and Technologies, Nguyen Duc Ngu
Published: May 2018

This paper presents a summary of the results of a study into the effects of ENSO (El Nino and La Nina) on the frequency of cold fronts and tropical cyclones affecting Vietnam. The results show that, during the ENSO periods, cold-air activities affecting Vietnam were reduced. The ratio of total positive anomalies to negative anomalies of front frequency was 68% in the case of El Nino, and 60% in the case of La Nina. The frequency of tropical cyclones affecting Vietnam decreased by 28% in the case of El Nino, and increased to 38% in comparison with the multiyear average in the case of La Nina. During the El Nino period, hurricanes affecting Vietnam were often evenly distributed or concentrated in the first half of the typhoon season, but during the La Nina period, hurricanes were concentrated in the second half of the hurricane season.
Moralitas Pemimpin: Dialektika atas Teks Suci Agama dan Pembentukan Budaya Lokal (Kajian Living Hadits dalam Sinetron Para Pencari Tuhan (PPT) Jilid 2 Eps.3)
Authors: Hayati Ridha
Published: May 2018

In recent years, some Indonesian television artists have used the Qur'an and the Hadith as part of the dialogue in their work. Thus in some of the TV soap opera there are religious and aesthetic power that shows the content of religion, that is da'wah or tabligh (invitation, or appeal) to the audience. The Seeker of God (PPT) is an example, how soap opera Ramadan is filled with nuances of religion and has more emphasis on the elements of Islam. In this research, the writer reviews the one of the episodes in PPT soap opera which generally talk about a leadership in society. In this episode, religious texts (Al-Qur'an and Hadith) and community actions interact, ayat and the referred hadith are sometimes understood textually, but sometimes also contextually. It is expected that this research explains that the study of the Qur’an and hadits do not only dwell on the literature of the books of tafsir only, but also has spread in the media technology in its curremt forms.Keywords: Al-Qur’an, Hadith, Dialogue, Indonesian Television. Belakangan ini, muncul karya-karya para seniman dan artis televisi Indonesia yang menjadikan Al-Qur’an maupun Hadits sebagai bagian dari dialognya. Sehingga dalam karya tersebut tercium aroma religius dan berdaya estetitis yang menunjukkan muatan spiritualitas yang bersifat dakwah atau tabligh (ajakan, seruan, maupun himbauan) bagi penonton­nya. Sinetron Para Pencari Tuhan (PPT) adalah sinetron Ramadhan yang bernuansa religi dan lebih menekankan unsur-unsur keislaman. Dalam penelitian ini penulis mengkaji sinetron PPT jilid 2 episode 3 yang secara umum berbicara tentang sebuah kepemimpinan dalam masyarakat. Di dalam episode ini, teks keagamaan (Al-Qur‟an dan Hadis) dan tindakan masyarakat saling berinteraksi, ayat maupun hadits yang dirujuk terkadang dipahami secara tekstual, namun terkadang juga kontekstual. Penelitian ini diharapkan dapat menjelaskan bahwa kajian Al-Qur’an dan hadis tidak hanya berkutat pada literatur kitab tafsir saja, melainkan telah menjalar dalam media teknologi sesuai perkembangan zamannya.Kata Kunci: Al-Qu’an, Hadits, Dialog, Televisi Indonesia.
Ética – Bioética – Pesquisa
Authors: Oliveira Carlos Jorge Rocha
Published: May 2018

Todo estudo que envolva qualquer espécie viva do nosso sistema, deve ter como base, o saber diferenciar a Ética da Moral e do Direito. Estas trêsáreas do conhecimento se distinguem, porém têm grandes vínculos e até mesmo sobreposições. A seguir serão descritos alguns pensamentos e fundamentações de diferentes autores que se posicionam sobre o que é a Ética, a Moral e o Direito, e suas definições mais usuais, assim como os conceitos usuais da Bioética.
BIST 30 İÇİN (2016-2017 DÖNEMİ) BETA KATSAYISI ANLAMLILIK TESTİ
Authors: Şen Ogün
Published: May 2018

Dünyanın çeşitli
borsalarında tek hissenin veya portföylerin üzerinde beta katsayısı aracılığı
ile yatırım kararları alınmaktadır. Bazı pazarlarda bu yardımcı katsayı ile
isabetli tahminlere ulaşılabilirken bazılarında ise tahminler tamamen yanlış
çıkmaktadır. Bu çalışmada
amaçlanan, BİST (Borsa İstanbul) hisse senedi piyasasında beta katsayısı ile
alınan yatırım kararlarının, özellikle BİST30 (Borsa İstanbul’un lokomotif
hisseleri) üzerinde tek tek hisse senetlerinin betaları veya portföy
betalarının anlamlı olup olmadığıdır. Beta katsayısı
ve Pazar getirisi ilişkisinde daha güvenilir bir yargıya ulaşabilmek için, en
düşük standart hataya sahip oldukları düşünülen, günlük getiriler üzerinden
hesaplamalar yapılmış ve regresyon analizine tabi tutulmuşlardır. Bu amaçla
önce BIST30 hisselerinin herbiri 2016-2017 (24 ay) dönemi için, ulusal Pazar
getirisi karşısında beta katsayılarının duyarlılığı ve daha sonra da rasgele
seçim ile 10 adet ve 20 adet hisseden oluşan portföylerin betalarının ulusal
Pazar getirisiyle kıyaslanarak 
duyarlılıkları test edilmiştir. 30
hissenin tek tek analizleri sonucunda elde edilen 4 adet hissenin anlamlı beta
katsayısına sahip olduğu görülmüştür, fakat 
4/30 oranının düşük bir değer oluşu ve güvenilir bir karar
aldırıcı(yardımcı) olamayacağı düşünülmüştür. 
Tek hisse ve portföy betaları ile yapılan regresyon analizleri
sonucunda, BİST-30 için beta katsayısının iyi bir karar aldırıcı olarak
kullanılamayacağı kanaatine varılmıştır..

Bu
ulaşılan sonucun muhtemel sebeplerine de ayrıca sonuç bölümünde değinilmiştir.
Salıpazarı ve Çevresinde (Samsun/Türkiye) Doğal Olarak Yetişen Bitkilerin Etnobotanik Özellikleri
Authors: DEMİR Esra , SÜRMEN Burak , ÖZER Harun , KUTBAY Hamdi Güray
Published: May 2018

Bu çalışmada, Samsun Salıpazarı İlçesi ve
çevresinde doğal olarak yetişen yenilebilir yabani otlar belirlenmiştir.
Çalışma 2015 ve 2016 yıllarında yürütülmüştür. İlk olarak yerel pazarlar daha
sonra köylerde yaşayan insanların topladıkları yabani yenilebilir bitkiler
araştırıldı. 12 familyaya ait 14 tür belirlendi. Ayrıca bu yabani bitkilerin
etnobotanik özellikleriyle kullanımını belirlendi. Bunun yanı sıra, yerel
isimleri, kullanılan kısımları ve kullanım amaçları tespit edildi. Sonuç olarak
alandan toplanan bitki örneklerinin değerlendirilmesiyle yiyecek olarak
kullanılan 14 yabani bitki türü tespit edilmiştir.
Influence du dosage systématique par biologie délocalisée du lactate sur le temps de passage des patients admis en salle d’accueil des urgences vitales
Authors: Delaite M. , Pernet J. , Yordanov Y. , Rotival J. , Gast C. , Ouahabi S. , Lefèvre G. , Ray P.
Published: May 2018

Objectif: L’objectif de notre étude était d’évaluer l’impact d’un dosage systématique par biologie délocalisée du lactate (DDL) sur le temps de passage en salle d’accueil des urgences vitales (SAUV).

Méthode: Il s’agit d’une étude prospective bicentrique de type avant/après réalisée dans deux services d’urgences universitaires. Deux phases ont été comparées. Lors de la première phase (septembre à décembre 2014), tous les patients d’âge supérieur ou égal à 18 ans orientés dès l’arrivée par l’infirmière organisatrice de l’accueil (IOA) en SAUV ont été inclus et ont bénéficié d’un DDL systématique. Pendant la seconde (mars à avril 2015) phase, pour les patients d’âge supérieur ou égal à 18 ans orientés dès l’arrivée par l’IOA en SAUV, le dosage du lactate a été laissé à l’appréciation du senior responsable et réalisé au laboratoire central.

Résultats: Les données sont exprimées en moyenne ± ET médiane [interquartile]. Huit cent trente-trois patients ont été inclus dont 397 dans la phase 1 et 436 dans la phase 2 (âge moyen de 63 ± 23 vs 59 ± 24 ans,p= 0,03), dont 16%ont été transférés en réanimation. Dans la phase 1 (avec DDL), la valeur moyenne du lactate (n= 397) était de 2,0 ± 1,9 mmol/l et dans la phase 2 (n= 70/436) de 2,2 ± 1,9 mmol/l (p= 0,55). La durée médiane de passage en SAUV n’était pas significativement diminuée avec DDL (165 [95–265] vs 170 [100–260] minutes,p= 0,76).

Conclusion: Notre étude n’a pas pu démontrer que l’introduction d’un DDL systématique réduit le temps de passage des patients admis en SAUV.
Editorial
Authors: Janssen Diederik F.
Published: May 2018

I am pleased to introduce Boyhood Studies, Volume 11, Issue 1. This issue’s
authors unanimously invite an appreciation of the many regional, temporal
and contextual inflections of manliness-in-the-making. After all: “Among
boys, as among men, there are ‘all sorts and conditions;’ environment
moulds them” (Anon. 1890: 147). This merits a bit of intercontinental timetravel.
Ecce puer: from Lord Baden-Powell’s and American contemporaries’
middle ages to late nineteenth-century Mexico’s French Third Republic,
back to Baden-Powell and into the Great War, and back again to presentday
Mexico. In Mexico, on both visits, we are travelling back and forth as
well, between the rural and urban experience.
The Concept of Sentimental Boyhood
Authors: Nieto Carlos Zúñiga
Published: May 2018

This article explores the popularization of the concept of sentimental boyhood during the anticolonial insurrections in the Ten Years’ War (1868– 1878) and the Caste War (1847–1901) in Cuba and the Yucatán Peninsula in the early 1870s. The concept was popularized as childhood advocates articulated a uniquely Mexican emotional standard in the process of child-rearing, promoting the individual cultivation of honor, the management of anger, and the use of fear as discipline. Beginning in the 1870s, Mexican educators popularized theories of boyhood drawing on European notions of boyhood, including work by Jean-Jacques Rousseau and Johann Heinrich Pestalozzi. While educators promoted Rousseau’s and Pestalozzi’s “sentimental notions of boyhood” in rural Yucatán, pedagogues in Mexico City advocated the use of fear to instill obedience among boys.
Effect of Fatigue Loading Mode on 718 Alloy Fatigue Properties
Authors: Belan Juraj , Kuchariková Lenka , Tillová Eva , Závodská Denisa , Chalupová Mária
Published: May 2018

In materials science, fatigue is the progressive and localized structural damage that occurs when a material is subjected to cyclic loading. If the loads are above a certain threshold, microscopic cracks will begin to form at the stress concentrators such as the surface, persistent slip bands (PSBs), interfaces of constituents in the case of composites, and grain interfaces in the case of metals. Eventually a crack will reach a critical size, the crack will propagate suddenly, and the structure will fracture. The first works about fatigue phenomenon were published since 1837 and intensively was investigated by Wöhler in 1860. With needs of using the progressive materials such titanium and Ni-base superalloys become more significant to put under the various fatigue loading these sorts of alloys. Presented article deals with how the various condition of loading influenced an IN718 alloy fatigue lifetime especially. The fatigue tests provided on this kind of material was done via low frequency loading and push-pull or rotation-bending stress up to this time. Fatigue tests of experimental material was carried out at two different frequencies, 20 kHz with stress ration R = - 1 (push – pull, σm = 0 MPa) as well as the three-point bending load R ˂ 1 (σom = 526.8 MPa) at low frequency 150 Hz at room temperature. The microstructure characterization and Scanning Electron Microscopy (SEM) fractography analysis of fatigue process were done as well. The main goal of study was analyze obtained data after fatigue test and consider, if the various loading modes have influence on fatigue lifetime (initiation sites, crack propagation character, etc.).
The Differential Effect of Sustained Operations on Psychomotor Skills of Helicopter Pilots
Authors: McMahon Terry W. , Newman David G.
Published: May 2018

INTRODUCTION: Flying a helicopter is a complex psychomotor skill requiring constant control inputs from pilots. A deterioration in psychomotor performance of a helicopter pilot may be detrimental to operational safety. The aim of this study was to test the hypothesis that psychomotor
performance deteriorates over time during sustained operations and that the effect is more pronounced in the feet than the hands. The subjects were helicopter pilots conducting sustained multicrew offshore flight operations in a demanding environment. The remote flight operations involved
constant workload in hot environmental conditions with complex operational tasking.METHODS: Over a period of 6 d 10 helicopter pilots were tested. At the completion of daily flying duties, a helicopter-specific screen-based compensatory tracking task measuring tracking accuracy
(over a 5-min period) tested both hands and feet. Data were compared over time and tested for statistical significance for both deterioration and differential effect.RESULTS: A statistically significant deterioration of psychomotor performance was evident in the pilots over time
for both hands and feet. There was also a statistically significant differential effect between the hands and the feet in terms of tracking accuracy. The hands recorded a 22.6% decrease in tracking accuracy, while the feet recorded a 39.9% decrease in tracking accuracy.DISCUSSION:
The differential effect may be due to prioritization of limb movement by the motor cortex due to factors such as workload-induced cognitive fatigue. This may result in a greater reduction in performance in the feet than the hands, posing a significant risk to operational safety.McMahon
TW, Newman DG. The differential effect of sustained operations on psychomotor skills of helicopter pilots. Aerosp Med Hum Perform. 2018; 89(6):496–502.
+Gz Exposure and Spinal Injury-Induced Flight Duty Limitations
Authors: Honkanen Tuomas , Sovelius Roope , Mäntysaari Matti , Kyröläinen Heikki , Avela Janne , Leino Tuomo K.
Published: May 2018

BACKGROUND: The present study aimed to find out if possible differences in early military flight career +Gz exposure level could predict permanent flight duty limitations (FDL) due to spinal disorders during a pilot’s career.METHODS: The study population
consisted of 23 pilots flying with Gz limitation (max limitation ranging from +2 Gz to +5 Gz) due to spinal disorders and 50 experienced (+1000 flight hours) symptomless controls flying actively in operative missions in the Finnish Air Force. Data obtained
for all subjects included the level of cumulative Gz exposure measured sortie by sortie with fatigue index (FI) recordings and flight hours during the first 5 yr of the pilot’s career.RESULTS: The mean (± SD) accumulation of FI in the first 5 yr of flying
high-performance aircraft was 8.0 ± 1.8 among the pilots in the FDL group and 7.7 ± 1.7 in the non-FDL group. There was no association between flight duty limitations and early career cumulative +Gz exposure level measured with FI or flight hours.DISCUSSION:
According to the present findings, it seems that the amount of cumulative +Gz exposure during the first 5 yr of a military pilot’s career is not an individual risk factor for spinal disorders leading to flight duty limitation. Future studies conducted with FI recordings should
be addressed to reveal the relationship between the actual level of +Gz exposure and spinal disorders, with a longer follow-up period and larger sample sizes.Honkanen T, Sovelius R, Mäntysaari M, Kyröläinen H, Avela J, Leino TK. +Gz exposure and spinal injury-induced flight duty limitations. Aerosp Med Hum Perform. 2018; 89(6):552–556.
PHEFT: Pessimistic Image Processing Workflow Scheduling for DSP Clusters
Authors: Drozdov Alexander Yu. , Tchernykh Andrei , Novikov Sergey V. , Vladislavlev Victor E. , Rivera-Rodriguez Raul
Published: May 2018

We address image processing workflow scheduling problems on a multicore digital signal processor cluster. We present an experimental study of scheduling strategies that include task labeling, prioritization, resource selection, and digital signal processor scheduling. We apply these strategies in the context of executing the Ligo and Montage applications. To provide effective guidance in choosing a good strategy, we present a joint analysis of three conflicting goals based on performance degradation. A case study is given, and experimental results demonstrate that a pessimistic scheduling approach provides the best optimization criteria trade-offs. The Pessimistic Heterogeneous Earliest Finish Time scheduling algorithm performs well in different scenarios with a variety of workloads and cluster configurations.
Piezoelectric Poly(vinylidene fluoride) (PVDF) Polymer-Based Sensor for Wrist Motion Signal Detection
Authors: Hu Yaohui , Kang Wuwei , Fang Yong , Xie Lingrui , Qiu Longzhen , Jin Tao
Published: May 2018

In this paper, a sensor based on polyvinylidene fluoride (PVDF) piezoelectric thin film was designed and fabricated to detect wrist motion signals. A series of dynamic experiments have been carried out, including the contrast experiments of different materials and force-charge signal characterization. The experimental results show that when the excitation signal exceeds 15 Hz, the sensitivity of the sensor is always stable at 3.10 pC/N. The signal acquisition experiment of the wrist motion has been carried out by using this sensor. The experiment results show that, with the advantages of small size, good flexibility, and high sensitivity, this wrist PVDF sensor can be used to detect the wrist motion signals with weak amplitude, low frequency, strong interference, and randomness.
An Improved Image Semantic Segmentation Method Based on Superpixels and Conditional Random Fields
Authors: Zhao Wei , Fu Yi , Wei Xiaosong , Wang Hai
Published: May 2018

This paper proposed an improved image semantic segmentation method based on superpixels and conditional random fields (CRFs). The proposed method can take full advantage of the superpixel edge information and the constraint relationship among different pixels. First, we employ fully convolutional networks (FCN) to obtain pixel-level semantic features and utilize simple linear iterative clustering (SLIC) to generate superpixel-level region information, respectively. Then, the segmentation results of image boundaries are optimized by the fusion of the obtained pixel-level and superpixel-level results. Finally, we make full use of the color and position information of pixels to further improve the semantic segmentation accuracy using the pixel-level prediction capability of CRFs. In summary, this improved method has advantages both in terms of excellent feature extraction capability and good boundary adherence. Experimental results on both the PASCAL VOC 2012 dataset and the Cityscapes dataset show that the proposed method can achieve significant improvement of segmentation accuracy in comparison with the traditional FCN model.
Detection of Impact Damage on PVA-ECC Beam Using Infrared Thermography
Authors: Wu Jianchao , Xu Changhang , Qi Baoxin , Hernandez Francisco C. Robles
Published: May 2018

The main purpose of the current research is to pilot study the impact damage detection in a beam structure using infrared thermography. In this study, a beam structure, made of polyvinyl alcohol fiber reinforced engineering cementitious composite (PVA-ECC) was subjected to multiple low-velocity impacts at a constant energy level. After each impact, the structure was heated by means of halogen lamp, and acquisition of thermal images was conducted simultaneously. Sequences of thermal images were acquired with starting and ending time sets so as to include the entire evolution of thermal phenomenon, during both heating to cooling processes. Based on the relationship between the damage and the temperature variation under the thermal excitation, different damages in the impacted structures were analyzed in the thermographs. Through experimental investigation, the results demonstrated that different degrees of damage correspond to different infrared thermal characteristics. The generation and evolution of thermal signatures revealed the initiation and propagation of impact damages. It further illustrated that the proposed method is an innovative and effective approach to detect impact damage.
Neural Prediction of Tunnels’ Support Pressure in Elasto-Plastic, Strain-Softening Rock Mass
Authors: Ghorbani Ali , Hasanzadehshooiili Hadi , Sadowski Łukasz
Published: May 2018

The prediction of the support pressure (Pi) and the development of the ground reaction curve (GRC) are crucial elements of the convergence–confinement procedure used to design underground structures. In this paper, two different types of artificial neural networks (ANNs) are used to predict the Pi of circular tunnels in elasto-plastic, strain-softening rock mass. The developed ANNs consider the stress state, the radial displacement of tunnel and the material softening behavior. Among these parameters, strain softening is the parameter of the deterioration of the material’s strength in the plastic zone. The analysis also presents separate solutions for the Mohr–Coulomb and Hoek–Brown strength criteria. In this regard, multi-layer perceptron (MLP) and radial basis function (RBF) ANNs were successfully applied. MLP with the architectures of 15-5-10-1 for the Mohr–Coulomb criteria and 17-5-15-1 for the Hoek–Brown criteria appeared optimum for the prediction of the Pi. On the other hand, the RBF networks with the architectures of 15-5-1 for the Mohr–Coulomb criterion and 17-3-12-1 for the Hoek–Brown criterion were found to be the optimum for the prediction of the Pi.
Stability Analysis of Mixed Convection Flow towards a Moving Thin Needle in Nanofluid
Authors: Salleh Siti Nur Alwani , Bachok Norfifah , Arifin Norihan Md , Ali Fadzilah Md , Pop Ioan
Published: May 2018

The problem of steady laminar mixed convection flow and heat transfer past a moving vertical thin needle in nanofluid for both assisting and opposing cases is analyzed in this paper. Three types of nanoparticles including copper, titania and alumina are taken into consideration. The nonlinear ordinary differential equations for momentum and energy have been transformed by adopting the similarity transformation in linear form. The problem is solved numerically using an implemented package called bvp4c in MATLAB software. The numerical computations are carried out for various parameters of interest, which consists of the velocity ratio parameter, mixed convection parameter, nanoparticle volume fraction parameter and the needle size. A stability analysis of the solution is performed showing that the upper branch solution is stable, while the lower branch solution is unstable. Validation of the present work is done by comparing the current results with those available in the existing literature and found to be in excellent agreement.
Application of Artificial Neural Networks in the Prediction of PM10 Levels in the Winter Months: A Case Study in the Tricity Agglomeration, Poland
Authors: Nidzgorska-Lencewicz Jadwiga
Published: May 2018

Poor urban air quality due to high concentrations of particulate matter (PM) remains a major public health problem worldwide. Therefore, research efforts are being made to forecast ambient PM concentrations. In this study, artificial neural networks (ANNs) were employed to generate models forecasting hourly PM10 concentrations 1–6 h ahead, involving 3 measurement locations in the Tricity Agglomeration, Poland. In Poland, the majority of high PM concentration cases occurs in winter due to coal combustion being the main energy carrier. For this reason, the present study covers only the periods of the winter calendar (December, January, February) in the period 2002/2003–2016/2017. Inputs to the models were the values of hourly PM10 concentrations and meteorological factors such as air temperature, relative humidity, air pressure, and wind speed. The results of the neural network models were satisfactory and the values of the coefficient of determination (R2) for the independent test set for three sites ranged from 0.452 to 0.848. The values of the index of agreement (IA) were from 0.693 to 0.957, the fractional mean bias (FB) values were 0 or close to 0 and the root mean square error (RMSE) values varied from 8.80 to 23.56. It is concluded that ANNs have been proven to be effective in the prediction of air pollution levels based on the measured air monitoring data.
Anandamide Revisited: How Cholesterol and Ceramides Control Receptor-Dependent and Receptor-Independent Signal Transmission Pathways of a Lipid Neurotransmitter
Authors: Scala Coralie Di , Fantini Jacques , Yahi Nouara , Barrantes Francisco J. , Chahinian Henri
Published: May 2018

Anandamide is a lipid neurotransmitter derived from arachidonic acid, a polyunsaturated fatty acid. The chemical differences between anandamide and arachidonic acid result in a slightly enhanced solubility in water and absence of an ionisable group for the neurotransmitter compared with the fatty acid. In this review, we first analyze the conformational flexibility of anandamide in aqueous and membrane phases. We next study the interaction of the neurotransmitter with membrane lipids and discuss the molecular basis of the unexpected selectivity of anandamide for cholesterol and ceramide from among other membrane lipids. We show that cholesterol behaves as a binding partner for anandamide, and that following an initial interaction mediated by the establishment of a hydrogen bond, anandamide is attracted towards the membrane interior, where it forms a molecular complex with cholesterol after a functional conformation adaptation to the apolar membrane milieu. The complex is then directed to the anandamide cannabinoid receptor (CB1) which displays a high affinity binding pocket for anandamide. We propose that cholesterol may regulate the entry and exit of anandamide in and out of CB1 by interacting with low affinity cholesterol recognition sites (CARC and CRAC) located in transmembrane helices. The mirror topology of cholesterol binding sites in the seventh transmembrane domain is consistent with the delivery, extraction and flip-flop of anandamide through a coordinated cholesterol-dependent mechanism. The binding of anandamide to ceramide illustrates another key function of membrane lipids which may occur independently of protein receptors. Interestingly, ceramide forms a tight complex with anandamide which blocks the degradation pathway of both lipids and could be exploited for anti-cancer therapies.
Carbon Nanostructure Curvature Induced from the Rapid Release of Sulfur upon Laser Heating
Authors: Abrahamson Joseph P. , Vander Wal Randy L.
Published: May 2018

Laboratory-generated synthetic soot from benzene and benzene–thiophene was neodymium-doped yttrium aluminum garnet (Nd:YAG) laser and furnace annealed. Furnace annealing of sulfur doped synthetic soot resulted in the formation of micro-cracks due to the high pressures caused by explosive sulfur evolution at elevated temperature. The heteroatom sulfur affected the carbon nanostructure in a different way than oxygen. Sulfur is thermally stable in carbon up to ~1000 °C and thus, played little role in the initial low temperature (500 °C) carbonization. As such, it imparted a relatively unobservable impact on the nanostructure, but rather, acted to cause micro-cracks upon rapid release in the form of H2S and CS2 during subsequent traditional furnace heat treatment. In contrast, Nd:YAG laser heating of the sulfur doped sample acted to induce curvature in the carbon nanostructure. The observed curvature was the result of carbon annealing occurring simultaneously with sulfur evolution due to the rapid heating rate.