bluuebunny/crossref_metadata_2025_split huggingface dataset:
Caracterização das rochas da Formação Estrada Nova como matéria-prima cerâmica no Estado de São Paulo, Brasil
Authors: Christofoletti Sergio Ricardo , Rocha Rogers Raphael da 
Published: July 2018

O presente artigo tem como objetivo estudar as características geológicas e tecnológicas das rochas argilosas da Formação Estrada Nova na região sudoeste do Estado de São Paulo, a fim de buscar novas matérias-primas para a indústria de revestimentos cerâmicos. Os estudos desenvolvidos mostraram que as rochas das diversas litofácies da Formação Estrada Nova, essencialmente constituídas por folhelhos e siltitos, quando submetidas à queima na temperatura de 950 °C adquirem características para serem utilizadas na produção de revestimentos porosos e na cerâmica estrutural. Em condições laboratoriais e industriais, nas temperaturas de 1120 e 1040 °C, algumas amostras das litofácies maciça e laminada apresentaram resultados satisfatórios para uso na produção de revestimento cerâmico pelo processo via seca, ou para incorporação na composição de massa para a produção de porcelanatos. As litofácies basais (maciça e laminada) são constituídas por partículas com curvas de frequência de tamanho mais homogêneas, enquanto as litofácies superiores (intercalada e arenosa) apresentam maior variação de tamanho de partículas. A homogeneidade da distribuição de tamanho das partículas encontrada nas amostras da litofácies maciça favoreceu o processo de moagem via seca, facilitando as etapas de densificação do produto. A presença mais elevada do CaCO3 no Membro Teresina em relação ao Membro Serra Alta ocasionou aumento de defeitos e queda na resistência mecânica. Nas amostras da litofácies folhelho síltico laminado (Membro Serra Alta), os altos valores de Perda ao Fogo aliados a baixos valores de CaCO3 evidenciam uma presença elevada de matéria orgânica, que resultou no inchaço dos corpos de prova devida a liberação de gases no seu interior, o que sugere uso destas como argilas expansivas.
Identidade gastronômica: patrimônio imaterial do oeste catarinense/ Gastronomic identity: immaterial heritage of the catarinense west
Authors: Tonezer Cristiane , Do Amaral Marta Nichelle , Mascarello Cervini Simone Fátima , Martinazzo Maria Regina 
Published: July 2018

A cultura dos povos está ligada à alimentação e para entender sua diversidade e especificidade tornam-se imprescindíveis resgatar aspectos históricos, visitar o passado e trazer hábitos, costumes e crenças de cada etnia. Este estudo objetiva resgatar a memória gastronômica das etnias formadoras do Oeste de Santa Catarina. Como metodologia utilizou-se a pesquisa-ação, onde além da revisão de literatura buscou-se descrever as ações de um projeto de extensão denominado Patrimônio Gastronômico do Oeste de Santa Catarina. Como resultado chegou-se aos ingredientes chaves de quatro etnias: italiana, alemã, cabocla e polonesa e a partir deles criou-se um novo prato representando-as, o Revirado. AbstractThe objective was to develop and validate a culturally appropriate instrument to evaluate the impact of a pilot intervention program in the food environment to promote healthy eating in small food stores in an urban food desert. A formative research was carried out for the validation of the instrument, including meetings of researchers, visits to all the streets in the study's region to identify food stores, visits to food distribution system agents', community workshops with the local community and in-depth interviews with food store owners for content and apparent validity. Instrument reliability was tested by Cronbach alpha coefficient. The development of the instrument included questions to evaluate the Identification and Characterization of Store; Marketing Parameters (i.e. influencers for including new food itens and frequency of product acquisition and profitability); and Psychosocial Factors Scale (i.e. expectations regarding healthy food sales, expectations regarding impact of intervention, and self-efficacy in relation to the marketing of healthy foods). Validation process allowed a review of all questions and questions' responses, with Cronbach alpha between 0.440 to 0.967 in the final instrument questions. It can be concluded that the instrument was developed to identify relevant characteristics of the food distribution system and can be used in epidemiological studies and public policies to evaluate increase access to healthy foods.Key words:Validation Studies; Urban Health; Food Environment
Comida na mesa, barraca na feira: Soberania Alimentar em famílias camponesas no município do Divino, MG./Food Sovereignty of peasents at Divino, MG: a Geography of Food?
Authors: Carneiro Leonardo de Oliveira 
Published: July 2018

O objetivo deste artigo é debater sobre a soberania alimentar de agricultores do município do Divino (MG), articulados ao movimento agroecológico. Para tal, utilizamos métodos de participação observante, além de entrevistas e caminhadas guiadas pelos agricultores em suas propriedades. Os resultados demonstram um alto grau de soberania alimentar nesse grupo: a maior parte da alimentação destes provém de seus plantios. Essa diversidade produtiva está “geografada” nas paisagens rurais e nos oferece caminhos para pensar na soberania alimentar em outras escalas. ABSTRACTThis article aims to debate about the food sovereignty of peasents at Divino, MG, articulated in the agroecological movement. The methodological approach of this research utilized is the observant participation. Interviews and guided walks in the peasant’s properties are also part of the methodology. The results demonstrate a high level of food sovereignty in this specific group: most of their feeding comes from their lands. This productive diversity is geographically pinpointed in the rural landscape and, above all, it may suggest the possibility of food sovereignty at different scales.Key words: Food Sovereignty, Territory; Agroecology
Le mythe de l’anglais langue universelle dans les débats éducatifs d’entre-deux-guerres au Québec : appropriation et contestation d’une construction coloniale britannique1
Authors: Hébert Virginie 
Published: July 2018

Certains chercheurs proposent de considérer le discours sur l’universalité de l’anglais comme un « mythe », soit comme une construction culturelle enracinée dans l’histoire impériale britannique. À l’aide d’une approche inspirée du courant d’étude sur les mythes sociaux, l’article analyse le rôle joué par ce mythe de l’anglais langue universelle dans les débats sur l’enseignement de l’anglais au Québec pendant l’entre-deux-guerres. Dans un premier temps, il retrace la genèse du mythe dans le contexte de l’Inde coloniale britannique puis, dans un second temps, il analyse comment certains acteurs canadiens-français se sont approprié ou ont contesté cette construction discursive extérieure. Il propose enfin une réflexion sur les conséquences de son appropriation dans l’interprétation qu’ont fait les Québécois de leur propre histoire, de leur langue et dans la définition de leur identité.
Batch Scheduling of Deteriorating Products
Authors: Barketau Maksim S. , Cheng T.C. Edwin , Kovalyov Mikhail Y. , Ng C.T. Daniel 
Published: July 2018

In this paper we consider the problem of scheduling N jobs on a single machine, where the jobs are processed in batches and the processing time of each job is a simple linear increasing function depending on job’s waiting time, which is the time between the start of the processing of the batch to which the job belongs and the start of the processing of the job. Each batch starts from the setup time S. Jobs which are assigned to the batch are being prepared for the processing during time S0 S. After this preparation they are ready to be processed one by one. The non-negative number bi is associated with job i. The processing time of the i-th job is equal to bi(si − (sib + S0)), where sib and si are the starting time of the b-th batch to which the i-th job belongs and the starting time of this job, respectively. The objective is to minimize the completion time of the last job. We show that the problem is NP-hard. After that we present an O(N) time algorithm solving the problem optimally for the case bi = b. We further present an O(N2) time approximation algorithm with a performance guarantee 2.
Investigation of Time–Dependent Resistive Switching Behaviors of Unipolar Nonvolatile Organic Memory Devices
Authors: Lee Woocheol , Kim Youngrok , Song Younggul , Cho Kyungjune , Yoo Daekyoung , Ahn Heebeom , Kang Keehoon , Lee Takhee 
Published: July 2018

AbstractOrganic resistive memory devices are one of the promising next‐generation data storage technologies which can potentially enable low‐cost printable and flexible memory devices. Despite a substantial development of the field, the mechanism of the resistive switching phenomenon in organic resistive memory devices has not been clearly understood. Here, the time–dependent current behavior of unipolar organic resistive memory devices under a constant voltage stress to investigate the turn‐on process is studied. The turn‐on process is discovered to occur probabilistically through a series of abrupt increases in the current, each of which can be associated with new conducting paths formation. The measured turn‐on time values can be collectively described with the Weibull distribution which reveals the properties of the percolated conducting paths. Both the shape of the network and the current path formation rate are significantly affected by the stress voltage. A general probabilistic nature of the percolated conducting path formation during the turn‐on process is demonstrated among unipolar memory devices made of various materials. The results of this study are also highly relevant for practical operations of the resistive memory devices since the guidelines for time‐widths and magnitudes of voltage pulses required for writing and reading operation can be potentially set.
Synthesis of meta‐Arylated Phenol Derivatives by Rhodium(I)‐Catalyzed Arylation of Quinone Monoacetal
Authors: Huang Jianhang , Liu Na , Lu Tao , Dou Xiaowei 
Published: July 2018

AbstractThe first selective synthesis of meta‐arylphenol derivatives by arylation of quinone monoacetal is reported. The transformation was achieved under Rh(I) catalysis via a formal arylation/demethoxylation process, and valuable meta‐arylphenols were obtained in high yields under mild conditions. Remarkably, an unprecedented convergent reaction pathway was assumed to be involved.magnified image
Improved Cycling Stability of Li[Ni0.90Co0.05Mn0.05]O2 Through Microstructure Modification by Boron Doping for Li‐Ion Batteries
Authors: Park Kang‐Joon , Jung Hun‐Gi , Kuo Liang‐Yin , Kaghazchi Payam , Yoon Chong S. , Sun Yang‐Kook 
Published: July 2018

AbstractBoron‐doped Li[Ni0.90Co0.05Mn0.05]O2 cathodes are synthesized by adding B2O3 during the lithiation of the hydroxide precursor. Density functional theory confirms that boron doping at a level as low as 1 mol% alters the surface energies to produce a highly textured microstructure that can partially relieve the intrinsic internal strain generated during the deep charging of Li[Ni0.90Co0.05Mn0.05]O2. The 1 mol% B‐Li[Ni0.90Co0.05Mn0.05]O2 cathode thus delivers a discharge capacity of 237 mAh g−1 at 4.3 V, with an outstanding capacity retention of 91% after 100 cycles at 55 °C, which is 15% higher than that of the undoped Li[Ni0.90Co0.05Mn0.05]O2 cathode. This proposed synthesis strategy demonstrates that an optimal microstructure exists for extending the cycle life of Ni‐rich Li[Ni1‐x‐yCoxMny]O2 cathodes that have an inadequate cycling stability in electric vehicle applications and indicates that an optimal microstructure can be achieved through surface energy modification.
Resolving the overall pattern of marattialean fern phylogeny
Authors: Rothwell Gar W. , Millay Michael A. , Stockey Ruth A. 
Published: July 2018

Premise of the StudyRecent clarification of the distribution of Marattiales through time provides the impetus for “total evidence” phylogenetic analyses of a major fern clade with a rich fossil record. These analyses serve as empirical tests for results from systematic analyses of living species and also of the belief that relationships among living species accurately reflect the overall pattern of phylogeny for clades with an extensive fossil record and a large percentage of extinction.MethodsSpecies of living and fossil Marattiaceae are analyzed employing a “total evidence approach” via maximum parsimony. Analyses were conducted using TNT implemented through WinClada.Key ResultsSystematic analyses of living species and of living + extinct species provide roughly concordant topologies for living taxa. However, living species of Marattiales are only one component of a much larger clade with two major subclades. One consists of Psaroniaceae and extends through time to at least the Early Cretaceous. The other consists of Marattiaceae and includes all living species. Various analyses support the generic‐level clades of living species from earlier analyses, but the arrangement of such clades varies from analysis to analysis.ConclusionsMarattiales is a monophyletic group that is extremely common in late Paleozoic and early Mesozoic deposits, with a stem group Psaroniaceae and a crown group Marattiaceae. Because Marattiaceae represents only a small component of overall marattialean diversity, living species alone neither account for evolutionary changes within the clade over time, nor accurately reflect the overall pattern of marattialean fern phylogeny.
Orexins Facilitates Osteogenic Differentiation of MC3T3‐E1 Cells
Authors: Han Xuesong , Zhou Jicheng , Peng Wei 
Published: July 2018

AbstractDysfunction of osteoblastic bone formation and matrix mineralization plays a key role in the pathological development of osteoporosis. The orexin peptide orexin‐A, a highly excitatory neuropeptide hormone, possesses various biological functions by activating its specific G protein‐coupled receptors, orexin‐1 receptor (OX1R) and orexin‐2 receptor (OX2R). Here, we report that OX1R but not OX2R was expressed in MC3T3‐E1 cells. Importantly, we found that orexin‐A accelerated osteoblast differentiation and matrix mineralization in MC3T3‐E1 cells, as manifested by elevation of physiological markers of osteoblastic differentiation [alkaline phosphatase (ALP) and osteogenic genes] and Alizarin Red staining, respectively. Importantly, our findings indicated that orexin‐A significantly increased the expression of runt‐related transcription factor 2 (Runx‐2), which is the central transcriptional factor. Orexin‐A treatment phosphorylated the kinase p38 mitogen‐activated protein kinase (MAPK) in a dose‐ and time‐dependent manner. Also, orexin‐induced increase in gene expression (Runx‐2, ALP, osteocalcin, and osterix) and matrix mineralization were prevented by the p38 MAPK specific inhibitor SB203580. Additionally, we also revealed that protein kinase D (PKD) is involved in the effects of Orexin‐A on p38 MAPK activation and Runx‐2 expression. Finally, we found that Orexin‐A‐induced osteoblastic formation and matrix mineralization and the activation of the PKD/p38 MAPK pathway are mediated by OX1R. Based on these findings, we concluded that activation of OX1R by orexin‐A might possess a therapeutic strategy for bone disease. © 2018 IUBMB Life, 70(7):633–641, 2018
The Neurovascular Protective Effect of S14G‐Humanin in a Murine MCAO Model and Brain Endothelial Cells
Authors: Peng Tao , Wan Wencui , Wang Jingtao , Liu Yu , Fu Zhenqiang , Ma Xingrong , Li Junmin , Sun Guifang , Ji Yangfei , Lu Jingjing , Lu Hong , Liu Yufeng 
Published: July 2018

AbstractEndothelial dysfunction is fundamental to ischemic stroke and brain injury. The humanin analogue S14G‐humanin (HNG) has been shown to be a cytoprotective derivative. In this study, we investigated the neuroprotective effects of HNG in vivo and in vitro. In a murine middle cerebral artery occlusion (MCAO) stroke model, HNG ameliorates cerebral infarction and suppresses the production of TNF‐α, IL‐1β, IL‐6 and MCP‐1 cytokines. HNG inhibits the expression of vascular adhesion molecules such as VCAM‐1 and ICAM‐1 in the cortex tissue. In mouse brain endothelial cells bEnd.3, HNG protects cell survival under oxygen deprivation (OGD) conditions. HNG suppresses ROS production as well as that of the same panel of cytokines and vascular adhesion molecules induced by OGD. HNG also reduces the numbers of THP‐1 cells attached to bEnd.3 by OGD. Mechanistically, we show that HNG exerts its effect via inhibition of the NF‐ κB pathway factor IKKα, activation of IκBα and accumulation of p65 in the nucleus. Our data conclude that S14G‐humanin serves as a neuroprotective factor, especially in brain vascular disorders. © 2018 IUBMB Life, 70(7):691–699, 2018
Direct Percutaneous Endoscopic Jejunostomy: Procedural and Nutrition Outcomes in a Large Patient Cohort
Authors: Simoes Priya K. , Woo Kaitlin M. , Shike Moshe , Mendelsohn Robin B. , Gerdes Hans , Markowitz Arnold J. , Ludwig Emmy , Shah Pari M. , Schattner Mark A. 
Published: July 2018

AbstractBackgroundDirect percutaneous endoscopic jejunostomy (DPEJ) is used for enteral nutrition (EN) in patients with postoperative anastomotic leaks after esophagectomy/gastrectomy and at high risk for aspiration. We characterized the indications, technical success, procedural/nutrition outcomes, and adverse events in a large cohort of patients undergoing DPEJ insertion.MethodsPatients undergoing DPEJ insertion between January 2009 and March 2015 were identified from an institutional endoscopy database. Demographic, procedural, and nutrition outcome data were collected from electronic medical records. Regression analyses were used to identify predictors of adverse events and procedural success.ResultsA total of 452 patients underwent 480 attempts at DPEJ insertion. Indications included preoperative or postoperative weight loss (64%), postoperative upper gastrointestinal (UGI) anastomotic leak (13%), aspiration prevention (10%), and other (13%). Of attempted procedures, 398 (83%) were successful. Feeding was initiated in 389 (98%) of patients; a median of 1775 calories was delivered daily. Median body mass index (BMI) at baseline was 22.9 (11.4–44.7) and did not change over follow‐up. Median change in BMI after DPEJ was similar in groups that received EN with palliative and curative intent. Adverse events following 480 attempted DPEJ insertions included 13 (3%) immediate and 74 (15%) delayed, 13 (3%) of which were serious. Patients with head and neck cancer had more adverse events than those with esophageal cancer (P = .020).ConclusionDPEJ is a successful and safe procedure that effectively provides access for EN support in malnourished patients and patients with postoperative UGI cancer.
Impact of Software Selection and ImageJ Tutorial Corrigendum on Skeletal Muscle Measures at the Third Lumbar Vertebra on Computed Tomography Scans in Clinical Populations
Authors: Teigen Levi M. , Kuchnia Adam J. , Nagel Emily , Deuth Christopher , Vock David M. , Mulasi Urvashi , Earthman Carrie P. 
Published: July 2018

AbstractBackgroundThere is growing interest in computed tomography (CT) measures of skeletal muscle cross‐sectional area (CSA) for nutrition assessment. Multiple software programs are available, but little work has been done comparing programs. We aimed to determine if CT–derived measures of skeletal muscle CSA at the level of the L3 are influenced by the software program used. We also demonstrate the importance of the ImageJ corrigendum published in this journal.MethodsTwo software programs, National Institutes of Health ImageJ and Tomovision sliceOmatic, were compared. ImageJ measures were obtained using both the original tutorial and corrigendum instructions. Skeletal muscle CSA at the level of the L3 was measured in advanced heart failure and head and neck cancer populations by 3 different investigators. Intraclass correlation coefficients were used to calculate intrarater and interrater reliability. Bland‐Altman analysis was used to assess agreement.ResultsBoth software programs yielded excellent intrarater and interrater reliability scores (intraclass correlation coefficients, 0.985–1.000). The overall mean difference (ImageJ tutorial with corrigendum − sliceOmatic) for the entire sample (N = 51) was found to be 1.53 cm2 (95% CI, 0.59–2.47 cm2). The overall mean difference (ImageJ corrected − original) for the entire sample (N = 51) was found to be −11.35 cm2 (95% CI, −12.75 to −9.95 cm2).ConclusionMeasures of skeletal muscle CSA at the L3 were found to be ∼1.53 cm2 higher with ImageJ than sliceOmatic. This difference was not found to affect interpretation against a published cut point. The importance of accounting for the ImageJ tutorial corrigendum was shown to be clinically significant when applied to published cut points.
Engineered GH11 xylanases from Orpinomyces sp. PC‐2 improve techno‐functional properties of bread dough
Authors: Passarinho Amanda Tafuri Paniago , Ventorim Rafaela Zandonade , Maitan‐Alfenas Gabriela Piccolo , de Oliveira Eduardo Basílio , Guimarães Valéria Monteze 
Published: July 2018

AbstractBACKGROUNDEndo‐1,4‐β‐xylanases have marked hydrolytic activity towards arabinoxylans. Xylanases (xynA) produced by the anaerobic fungus Orpinomyces sp. strain PC‐2 have been shown to be superior in specific activity, which strongly suggests their applicability in the bakery industry for the processing of whole‐wheat flour containing xylans. In the present study, two xylanases from this source, the small wild‐type xylanase SWT and the small mutant xylanase SM2 (V108A, A199T), were expressed in Escherichia coli, purified, characterized, tested for their ability to hydrolyze whole‐wheat flour and applied in dough processing.RESULTSBoth purified SM2 and SWT showed high specific activity against oat spelt xylan and wheat arabinoxylan, exhibiting maximum activity at pH 3–7 and 60 °C. SM2 was more thermostable than SWT, which suggests that the mutations enhanced its stability. Both SWT and SM2 were able to hydrolyze whole‐wheat flour, and evaluation of their applicability in dough processing by the sponge method indicated that use of these enzymes increased dough volume by 60% and reduced texture hardness by more than 50%, while gumminess and chewiness were reduced by 40%.CONCLUSIONThe recombinant xylanases showed potential for application in bakery processing and can improve techno‐functional properties in sponges. © 2018 Society of Chemical Industry