bluuebunny/crossref_metadata_2025 huggingface dataset:
Paroxysmal Atrial Fibrillation Is More Prevalent than Persistent Atrial Fibrillation in Acute Stroke and Transient Ischemic Attack Patients
Authors: Rizos T. , Wagner A. , Jenetzky E. , Ringleb P.A. , Becker R. , Hacke W. , Veltkamp R.
Published: April 2017

Background: Atrial fibrillation (AF) is a common cause of ischemic stroke and transient ischemic attack (TIA). More extensive diagnostic effort is required to detect paroxysmal AF (pxAF) than persistent AF (pAF); the prevalence of pxAF in stroke patients is unknown. We evaluated the prevalence of pAF and pxAF in ischemic stroke and TIA patients. Methods: Consecutive patients with acute ischemic stroke/TIA were enrolled prospectively. We aimed to detect patients with a history of AF, with AF newly diagnosed in the emergency room (ER), or with newly diagnosed AF during a 3-month period following the event. Differences in the frequency of AF diagnosis with respect to the disposition of patients after ER work-up were assessed. Results: A total of 692 patients were enrolled (male: 52.2%; ischemic stroke: 69.1%; TIA: 30.9%). A previously documented history of AF was present in 19.7% (pAF: 47.1%, pxAF: 52.9%). In 3.8% of patients, AF was newly diagnosed in the ER (pxAF: 61.5%) and in 5.2% during the 3-month follow-up period. The overall prevalence of AF was 28.6% (pxAF: 62.6%). Previously documented pxAF evaded diagnosis at ER presentation in 48.6%. The prevalence of AF increased with age (p < 0.001). Patients with pxAF were younger than those with pAF (p = 0.004) and more often female (p = 0.05). The presence of any AF was associated with higher initial NIHSS scores (p < 0.001) and higher modified Rankin scores after 3 months (p < 0.001). Conclusion: pxAF occurs more often than pAF in stroke/TIA patients. As effective stroke prevention is available for AF, it is important to develop and evaluate sensitive methods for detecting pxAF.
Short- and Long-Term Outcomes of Pancreatectomy with or without Biliary Tract and Duodenum Preservation for Benign and Borderline Neoplasms
Authors: Perinel Julie , Adham Mustapha
Published: April 2017

Objectives: The aim of this study was to compare short- and long-term outcomes of biliary tract and duodenum-preserving pancreatectomy (BT-DPP) versus non-conservative pancreatectomy (NCP). Patients and Methods: From 2008 to 2012, 39 of 259 patients underwent pancreatectomy for benign or borderline neoplasms. Patients were classified as BT-DPP (n = 15) or NCP (n = 24). Data were prospectively collected and retrospectively analyzed on an intention-to-treat basis. Results: Both groups were comparable regarding demography, intra- and postoperative data (operative time, blood loss) and length of hospital stay. Overall complications occurred in 10 and 19 (p = 0.31), postpancreatectomy fistula in 2 and 4 (p = 0.6), biliary fistula in 3 and 1 (p = 0.15), and postpancreatectomy hemorrhage in 3 and 7 (p = 0.4) patients in the BT-DPP and NCP groups, respectively. One patient in the NCP group died. The median follow-up was 27 (4.4-56.5) and 23.4 (0.3-53) months in the BT-DPP and NCP groups, respectively. One BT-DPP patient had biliary stenosis treated endoscopically and 1 patient in the NCP group required surgery. The incidence of diabetes was equal. Conclusion: Our study shows that BT-DPP is feasible without an increase in morbidity compared with NCP. In the long term, BT-DPP was not associated with higher morbidity.
Pathological Correlates of White Matter Hyperintensities on Magnetic Resonance Imaging
Authors: Shim Yong Soo , Yang Dong-Won , Roe Catherine M. , Coats Mary A. , Benzinger Tammie L. , Xiong Chengjie , Galvin James E. , Cairns Nigel J. , Morris John C.
Published: April 2017

Background/Aims: We investigated the histopathological correlates of white matter hyperintensities (WMHs) in participants with Alzheimer's disease (AD) or cerebrovascular disease, and in aged controls. Methods: We reviewed 57 participants who had neuropathology and in whom neuroimaging was done. In addition to AD pathology, cortical microinfarcts, lacunes, and cerebral hemorrhages were assessed. Small-vessel disease included arteriolosclerosis and cerebral amyloid angiopathy. Postmortem brain tissue corresponding to regions of WMHs was investigated in 14 participants. The variables included: demyelination of the deep and periventricular white matter (WM), atrophy of the ventricular ependyma, and thickness of blood vessels. Partial Spearman's rank test and linear regression analysis, adjusted for age at the clinical evaluation and the duration to death, were performed. Results: The severity of arteriosclerosis was correlated with the volume of periventricular hyperintensity (PVH) estimated by magnetic resonance imaging. Deep white matter hyperintensity (DWMH) volume was correlated with the presence of cortical microinfarcts and cerebral hemorrhages. The severity of the breakdown of the ventricular lining was correlated with PVHs, and DWMHs correlated with the severity of deep WM demyelination. The diameter of small blood vessels was not associated with WMHs. Conclusion: WMHs are consistent with small-vessel disease and increase the tissue water content. We found no association between WMHs and the thickness of small blood vessels. © 2014 S. Karger AG, Basel
Low-Dose Chemoreduction for Infants Diagnosed with Retinoblastoma before 6 Months of Age
Authors: Berry Jesse L. , Jubran Rima , Lee Thomas C. , Murphree A. Linn , Lee Diana , Kim Jonathan W.
Published: April 2017

Aim: The purpose of this study was to evaluate the outcomes of infants diagnosed with retinoblastoma before 6 months of age, including the need for chemoreduction (CRD). In this age group, dosage of CRD was reduced due to its potential for toxicity. Methods: This is a retrospective review from 2000 to 2009 that includes 126 eyes of 72 infants (18 unilateral, 54 bilateral). Systemic CRD was administered when local modalities failed or were considered inadequate. Primary outcome measures were the need for CRD and globe salvage. Results: Of the 72 infants diagnosed before 6 months of age, 48 (67%) ultimately required CRD for globe salvage, 40 (56%) patients before 6 months of age. Globe salvage was achieved in 62% (78/126) of eyes overall and in 93% (68/73) of eyes with Group A-C disease. No patient was hospitalized for CRD-related illness; survival was 100%. The mean follow-up was 52.9 months (range 1-148 months). Conclusion: Utilizing a combination of focal modalities and reduced-dose CRD, children diagnosed with retinoblastoma before 6 months of age attain globe salvage rates comparable to those of older age groups. Two thirds of the infants ultimately required CRD for globe salvage. Bilateral disease as well as Group D and E classification in at least one eye at presentation increased the chance of requiring CRD (p < 0.0001 and p < 0.016, respectively).
Effects of Estradiol on Autophagy and Nrf-2/ARE Signals after Cerebral Ischemia
Authors: Li Litao , Chen Jinghong , Sun Sujuan , Zhao Jingru , Dong Xiaoli , Wang Jianhua
Published: April 2017

Background/Aims: Estradiol (EST) reduces the risk of stroke and decreases the incidence and progression of the disease because of its neuroprotective roles in inhibiting cell death that occurs in response to a variety of neuronal stimuli such as inflammation and oxidative stress. In this study, we determined the role played by autophagy and Nrf2-ARE signal pathways in the hippocampus regions in modulating cerebral ischemia under different EST conditions. Methods: Western blot analysis and ELISA were used to determine the protein expression of autophagy and Nrf2-ARE pathways; and the levels of pro-inflammatory cytokines (PICs) and a key marker of oxidative stress. Results: Lacking of EST amplifies autophagy and attenuates Nrf2-ARE pathway in the hippocampus CA1 region. Blocking autophagy alleviates neurological deficits following cerebral ischemia with lacking of EST levels and the effects of autophagy are associated with PIC and oxidative stress. Conclusions: EST influences the protein expression of autophagy and Nrf2-ARE signaling in the brain, which is linked to the pathophysiological processes of PICs and oxidative stress. Moreover, inhibition of autophagy plays a beneficial role in modulating neurological deficits after cerebral ischemia observed under conditions of a lower level of EST.
Sepedon (Diptera: Sciomyzidae) species from China, with notes on taxonomy and distribution
Authors: LI ZHU , YANG DING
Published: April 2017

All eight species of the genus Sepedon Latreille (Diptera: Sciomyzidae) known from China are reviewed and keyed, with diagnoses, photographs, and discussion. Geographic distributions of all species are updated and discussed, and distribution maps are presented. Sepedon spinipes (Scopoli) is recorded for the first time as occurring in China.
Discovery of Penicillidmus in the Bismarck Archipelago, Papua New Guinea, with description of a new species from Lavongai (New Hanover) Island (Coleoptera, Staphylinidae, Scydmaeninae)
Authors: JAŁOSZYŃSKI PAWEŁ
Published: April 2017

Penicillidmus Jałoszyński, 2014 was established to accommodate two Australian species of Glandulariini. Penicillidmus masseyensis Jałoszyński, 2014 and P. unicolor Jałoszyński, 2014 are known to occur in Cape York, northern Queensland. With the adult body length ranging from 0.83 to 0.86 mm, these species are among the smallest Australian scydmaenines. Another, yet undescribed species represented by a female, is also known to occur within the same area (Jałoszyński 2014). Penicillidmus resembles similarly small adults of Microscydmus Saulcy & Croissandeau, 1893, but can be easily distinguished on the basis of remarkable cephalic and prothoracic structures. Unlike any other Glandulariini, species of Penicillidmus have a unique system of carinae on the flattened ventral surface of the head, located posterior and lateral to the mouthparts. The submental carina runs along the anterior margin of the submentum and extends laterally along cardinal bases; the longitudinal lateral carina runs at each side of mouthparts and extends from the anterior margin of the head capsule to the 'neck' region; and the transverse carina connects each longitudinal lateral carina with the mesoventral margin of the compound eye. Additionally, the apex of the terminal maxillary palpomere is thickened, and the pronotum bears a thick posterolateral brush of several long setae. The latter character is most easily observable; under a stereomicroscope the brush appears as a solid rod-like structure, individual setae can be recognized in transparent mounts under a compound microscope.
Revision of the subgenus Niphetoscapha Heller of Gymnopholus Heller (Coleoptera, Curculionoidea, Entiminae, Eupholini) and a new species with epizoic symbiosis from West New Guinea
Authors: RIEDEL ALEXANDER , KILMASKOSSU AGUST
Published: April 2017

The subgenus Niphetoscapha Heller 1914 of Gymnopholus Heller 1901 is revised. It is characterized by the morphology of the elytral apex and the asymmetrical tip of the penis. Vestigial wings and a fused elytral suture indicate flightlessness. Gymnopholus (Niphetoscapha) inexspectatus sp. n. is described as new, exhibiting a distinct epizoic symbiosis with algae otherwise known from the subgenus Symbiopholus Gressitt 1966. The four species of Niphetoscapha inhabit the central mountain range of West New Guinea: Gymnopholus audax Gressitt 1966, G. inexspectatus sp. n., G. nitidus Gressitt & Sedlacek 1967, and G. wichmanni (Heller, 1914). A lectotype is designated for the type-species, G. wichmanni. All species are described, a key is provided, and their distribution is mapped. A large gap separating the areas with records of Niphetoscapha and Symbiopholus is noted for Central New Guinea. The phylogenetic concept of Gymnopholus and its subgenera is briefly discussed.
A new species of Phrynus Lamarck, 1801 (Arachnida: Amblypygi), from Trinidad and Tobago, and Venezuela, with a redescription of Phrynus pulchripes (Pocock, 1894)
Authors: JOYA DANIEL CHIRIVI
Published: April 2017

We present the description of Phrynus calypso sp. nov. from Trinidad and Tobago, and Venezuela This species is very similar to Phrynus pulchripes (Pocock), however after examining Colombian specimens of P. pulchripes (ca. type locality), many differences were found. Characters commonly used in diagnosis of Phrynus species are variable and make identification difficult. Differences in a few structures, like pedipalpal spines, could not be enough to provide a useful diagnosis.  It is necessary to account for variation of similar species in conjunction, and select non overlapping groups of characters. Observations in the variation in both species are presented, pointing out sources of confusion, and suggesting alternative characters to support diagnoses. At the moment, details about variation in many species in Phrynus, like that of P. pulchripes, are poorly known, and for this reason a redescription is provided.
The identity of Arhodia egenaria Walker, 1866 (Lepidoptera, Mimallonoidea, Mimallonidae) and a new synonym of Cicinnus melsheimeri (Harris, 1841)
Authors: LAURENT RYAN A. ST , MCCABE TIMOTHY L.
Published: April 2017

The holotypes of Arhodia egenaria Walker, 1866 and Cicinnus primolus Schaus, 1928, syn. n., were examined. Both names are junior synonyms of C. melsheimeri (Harris, 1841). Cicinnus melsheimeri (as Perophora egenaria), sensu Hampson, 1904, is a misidentification of C. bahamensis St Laurent & McCabe, 2016.
None of the above: thrombotic microangiopathy beyond TTP and HUS
Authors: Masias Camila , Vasu Sumithira , Cataland Spero R.
Published: April 2017

Acquired thrombotic thrombocytopenic purpura (TTP) and hemolytic uremic syndrome (HUS) are appropriately at the top of a clinician’s differential when a patient presents with a clinical picture consistent with an acute thrombotic microangiopathy (TMA). However, there are several additional diagnoses that should be considered in patients presenting with an acute TMA, especially in patients with nondeficient ADAMTS13 (a disintegrin and metalloproteinase with a thrombospondin type 1 motif, member 13) activity (>10%). An increased awareness of drug-induced TMA is also essential because the key to their diagnosis more often is an appropriately detailed medical history to inquire about potential exposures. Widespread inflammation and endothelial damage are central in the pathogenesis of the TMA, with the treatment directed at the underlying disease if possible. TMA presentations in the critically ill, drug-induced TMA, cancer-associated TMA, and hematopoietic transplant–associated TMA (TA-TMA) and their specific treatment, where applicable, will be discussed in this manuscript. A complete assessment of all the potential etiologies for the TMA findings including acquired TTP will allow for a more accurate diagnosis and prevent prolonged or inappropriate treatment with plasma exchange therapy when it is less likely to be successful.
Finding Labor History in the History of Capitalism
Authors: Wilpone-Welborn Heather
Published: April 2017

This article examines papers presented at the “Beyond ‘Free’ and ‘Unfree’ Labor” Conference held at the University of Illinois at Chicago in April 2016. It extracts salient themes and questions about the status of labor history in the growing field of the history of capitalism. Topics discussed include the role of the state in the economy, tensions concerning the separation of the so-called private and public spheres, and changes to labor regimes over time.
Correlation plots of the Siberian Radioheliograph
Authors: Лесовой Сергей , Lesovoi Sergey , Кобец Вероника , Kobets Veronika
Published: April 2017

The Siberian Solar Radio Telescope [Grechnev et al., 2011] is now being upgraded. The upgrading is aimed at providing the aperture synthesis imaging in the frequency range 4–8 GHz [Lesovoi et al., 2011, 2014] instead of the single-frequency direct imaging due to the Earth rotation. The first phase of the upgrading is a 48-antenna array — Siberian Radioheliograph. One type of radioheliograph data represents correlation plots [badary.iszf.irk.ru/srhCorrPlot.php]. In evaluating the covariation of two-level signals, these plots are sums of complex correlations, obtained for different antenna pairs. Bearing in mind that correlation of signals from an antenna pair is related to a spatial frequency, we can say that each value of the plot is an integral over a spatial spectrum. Limits of the integration are defined by a task. Only high spatial frequencies are integrated to obtain dynamics of compact sources. The whole spectrum is integrated to reach maximum sensitivity. We show that the covariation of two-level values accurate to Van Vleck correction is a correlation coefficient of these values.
Invisible pictures
Authors: Dowd D. B.
Published: April 2017

In September 2016 the special collections library that preserves historical American illustration at Washington University in St. Louis, USA, was named after D. B. Dowd. A longtime professor in the university’s Sam Fox School of Design & Visual Arts, Dowd is a tireless advocate for the preservation and study of popular print culture and was instrumental in the establishment of this library in 2007. The D. B. Dowd Modern Graphic History Library (DMGHL) is a repository of printed and original illustration and of several prominent illustrators’ estates, including those of the legendary Al Parker and Robert Weaver. The DMGHL is also a study centre open to students, scholars and the public, and a leader in illustration studies and research. The Journal of Illustration is pleased to print verbatim Dowd’s speech given on the occasion of the naming. – ed.
Illustration narratives between the East and the West: An individual artist’s perspective
Authors: Jain Priyanka
Published: April 2017

This article is a personal account of my experience of how illustrations are perceived in different countries, as I have observed them during my art education in India and Germany. I will try to illuminate the reasons for such varied perceptions and how the atmosphere of art academies shapes these differences. This will be followed by an examination of the consequences when certain notions of what constitutes art cross national borders in the global world. Finally, I will try to establish how academic notions of art have very little resonance with common people’s perception within their own countries and elsewhere, and why illustrations that are looked down upon in academic circles are a more accessible medium for the masses.
HUBUNGAN VARIASI GEN ESTERASE DENGAN PERTUMBUHAN INDIVIDU IKAN BANDENG (Chanos chanos)
Authors: Sugama Ketut
Published: April 2017

Penelitian ini mencoba mencari hubungan antara genotip atau alel pada lokus esterase (EST) dengan pertumbuhan individu ikan bandeng. Variasi genotip atau alel pada ikan bandeng dideteksi dengan teknik elektroforesis gel tepung. Dari hasil analisis tidak terlihat adanya perbedaan laju pertumbuhan individu antara ikan yang homozigot dan heterozigot pada EST-1 lokus. Namun individu dengan genotip EST-I AA atau alel A cendrung mempunyai berat tubuh yang lebih besar dibandingkan dengan individu dengan genotip EST-I BB bila dipelihara pada tambrk yang sama.
PENELITIAN PEMBANTUTAN BENIH IKAN BANDENG, Chanos chanos ASAL PANTI PEMBENIH DI TAMBAK
Authors: Setiadharma Tony , Yunus Yunus
Published: April 2017

Penelitian ini bertuiuan untuk mengetahui pengaruh lama pembantutan terhadappertumbuhan benih ikan bandeng esal panti pembenih yang dipelihara di tambak.Penelitian menggunakan rancangan acak lengkap dengan empat perlakuan dan tiga kaliulangan. Perlakuan yang diuji adalah benih yang dibantut selama satu, dua dan tigabulan serta benih yang tidak dibantut.
EKSTRAKSI LEM IKAN DARI TULANG IKAN PARI
Authors: Saleh Mohammad , Embun Ratna Sari , Wijandi Soesarsono , Indriati Ninuk , Haq Nurul
Published: April 2017

Dalam pengolahan ikan pari asin, bagian yang dimanfaatkan hanya daging sayapsaja, sedangkan bagian lain yang terdiri dari isi perut, tulang punggung dan kepala yang mencapai sekitar 55%, terbuang sebagai limbah. Untuk mengoptimalkan pemanfaatan ikan pari telah dilakukan penelitian pengolahan lem dari tulang ikan ini dengan penekanan khusus pada pengaruh konsentrasi asam asetat terhadap rendemen den mutu lem yeng dihasilkan.
KELIMPAHAN DAN KOMPOSISI FITOPLANKTON DI ATAS BATANGHARI BAGIAN HILIR, PROPINSI JAMBI
Authors: Samuel Samuel , Nasution Zahri , Akrimi Akrimi
Published: April 2017

Suatu pengamatan terhadap fitoplankton telah dilalukan di DAS Batanghari bagianhilir. Tuiuan pengamatan adalah untuk mengetahui komposisi dan kelimpahan  fitoplankton dihubungkan dengan masalah pencemaran di berbagai habitat baik padakeadaan air surut maupun pasang. pengambilan contoh plankton menggunakan plankton net No.25 di 5 stasion pengamatan pada keadaan air rendah/surut (November1994) dan pada keadaan air tinggi/pasang (Januari 1995).
PERKEMBANGAN KEMATANGAN GONAD IKAN BENTONG, Selar crumenophtalmus (CARANGIDAE) DI LAUT JAWA
Authors: Suwarso Suwarso , Sadhotomo Bambang
Published: April 2017

Kajian mengenai perkembangan karakteristik kematangan gonad ikan bentong(S.crumenophtalmus) didasarkan pada hasil pengamatan mikroskopis dan visual terhadaf gonad (ovarium) serta pengukuran nilai indcks gonad telah dilakukan.
PEMELIHARAAN KERAPU BEBEK (Cromilepta abioeli) PADA KONDISI SALINITAS BERBEDA
Authors: Ahmad Taufik , Wardoyo Wardoyo
Published: April 2017

Ikan kerapu bebek termasuk saleh satu ienis ikan yang sangat diminati konsumendan karena itu mengalami tekanan akibat intensitas penangkepen yang tinggi. Budidaya ikan tersebut harus segera dimulai untuk mengantisipasi kemungkinan penurunan populasinya di alam.
Role of surface treatment and coating on tensile response and fracture behavior of aluminum alloy 7075
Authors: Arindam Paul , Doll Gary L. , Srivatsan Tirumalai S.
Published: April 2017

In this paper, the extrinsic influence of a surface treatment technique and coating on the tensile response and fracture behavior of the high-strength aluminum alloy 7075 is presented and discussed. The surface treatment technique is referred to as ‘mikronite’. In this technique, fine objects, microscopic in dimensions, are made to impact with the surface of a chosen specimen at both a high speed and a strong force. The surface-treated sample of the chosen aluminum alloy was observed to have lower values of strength and ductility when compared to the untreated counterpart. Chromium nitrate is a preferred coating in industrial circles as a viable technique for the purpose of improving the corrosion resistance of metals that are exposed to environments spanning a range of aggressiveness while in service. The presence of the coating was also found to have a detrimental influence on the strength of the chosen aluminum alloy (7075-T6). The kinetics governing tensile response and fracture behavior, at both the macroscopic and fine microscopic levels, is presented and discussed in light of the nature of loading, presence of surface treatment, presence and influence of nature of coating and intrinsic microstructural effects.
Simulation of self-compacting concrete in an L-box using smooth particle hydrodynamics
Authors: AL-Rubaye Muna , Kulasegaram Sivakumar , Karihaloo Bhushan Lal
Published: April 2017

The three-dimensional Lagrangian-particle-based smooth particle hydrodynamics methodology was used to simulate the flow characteristics of self-compacting concrete (SCC) mixes in an L-box test. A Bingham-type constitutive model was coupled with the Lagrangian momentum and continuity equations to simulate the flow. The simulations of SCC focused on the flow times, the free-surface profile and the distribution of large aggregates (larger than or equal to 8 mm) during the flow. The numerical simulation results were compared with actual L-box tests carried out on several SCC mixes. The comparison revealed that the methodology is very well suited to predicting the flow behaviour of SCC in terms of passing and filling abilities and the distribution of large aggregates.
Estudo de motor universal com núcleos obtidos pelos processos da metalurgia do pó para utilização em furadeiras manuais
Authors: Bittencourt Sérgio Deitos , Da Cas Roberto Luis Ribeiro , Dias Moises De Mattos , Schaeffer Lirio , Pauletti Philippe , Fernandes Fernando Martins , Ferreira Carlos Antônio
Published: April 2017

Este trabalho teve por objetivo o estudo de ligas sinterizadas a partir de Fe puro, FeP, FeSi e FeNi obtidas a partir dos processos da Metalurgia do Pó para sua aplicação nos núcleos do rotor e estator de um motor universal, tendo como finalidade sua utilização em uma máquina furadeira manual. A pesquisa compreendeu a obtenção de curvas de histerese destas ligas, ensaios para avaliação de perdas elétricas e simulação em software de elementos finitos para obtenção de fluxo de entreferro e conjugado eletromagnético (torque). Os estudos teóricos foram realizados em um motor universal de topologia convencional e as simulações foram realizadas de forma a comparar este motor com os de núcleos fabricados a partir de chapas de aço laminadas.
Utilização da estatística multivariada como ferramenta para identificação das possíveis fontes de poluição do Arroio Lavras do Sul/RS, Brasil
Authors: Centeno Luana Nunes , Cecconello Samanta Tolentino , Guedes Hugo Alexandre Soares , Leandro Diuliana
Published: April 2017

A poluição existente em um corpo d`água é fortemente influenciada pelas diversas atividades antrópicas existentes na bacia hidrográfica na qual o manancial faz parte, demandando a identificação das fontes de poluição, para que estes corpos hídricos sejam adequados de acordo com os usos a que se dispõem. Diante isso, este trabalho objetivou utilizar a análise fatorial/ componentes principais para identificar as possíveis fontes de poluição do arroio Lavras do Sul localizado no Sul do Rio Grande Do Sul. Para isto, foram utilizadas nove variáveis de qualidade da água disponibilizados pela Fundação Estadual de Proteção Ambiental Henrique Luis Roessler, sendo elas, Oxigênio Dissolvido (OD), Demanda Bioquímica de Oxigênio (DBO520), Turbidez (TH), Nitrogênio Total Kjeldahl (NTK), Fosforo Total (PT), Temperatura da Água (TH2O), Coliformes Termotolerantes (CT), Sólidos Totais (ST) e Potencial Hidrogêniônico (pH). As variáveis que apresentaram os maiores coeficientes de correlação com outras variáveis envolvidas neste estudo foram CT, DBO520, OD, TH2O e TH, após a decomposição da matriz que gerou dois fatores que explicaram 100% da variância total dos dados, sendo que a primeira componente principal gerada estava relacionada quando proveniente de ações antrópicas a despejos domésticos e atividades agropecuárias; já a segunda componente principal estava relacionada a despejos industriais e atividades mineradoras.
Avaliação ergonômica em um viveiro florestal de Santa Maria, RS
Authors: Possebom Gessieli , Moreira Antonio Robson , Carpes Dauto Piveta , Francetto Tiago Rodrigo , Zart Bruno Christiano Corrêa Ruiz , Alonço Pablo Do Amaral , Alonço Airton Dos Santos
Published: April 2017

O estudo foi desenvolvido com base nos dados coletados em um viveiro florestal em Santa Maria, com o objetivo de realizar uma avaliação postural dos trabalhadores e das condições ambientais e estruturais do local de trabalho. A avaliação ocorreu a partir de observações visuais, além de registros fotográficos e posterior análise postural através do método RULA pelo Software Ergolândia. Ainda, utilizou-se de entrevista informal e o censo de ergonomia de COUTO para aferições acerca dos trabalhadores do viveiro. Através das análises, evidenciou-se que as posturas empregadas no total de atividades avaliadas no viveiro não se encontram adequadas, resultando no nível 3 do método RULA, sendo necessário, portanto, intervenção ergonômica. Corroborando com tais resultados, evidenciou-se dor e desconforto nos trabalhadores, especialmente na região de coluna, pescoço, pernas e braços dos trabalhadores. O ambiente de trabalho estudado também não é condizente com o adequado para a execução das tarefas, ocasionando insatisfação entre os trabalhadores. Assim, para melhoria do ambiente, saúde e segurança, recomenda-se o uso de bancadas que permitam posturas corretas para a execução das atividades, utilização de EPIs durante as operações, evitar transporte de cargas excessivas, além de manter o revezamento de funções, diminuindo o risco de lesões por atividades repetitivas.
Biolistic dye loading protocol for marine phytoplankton v1
Authors: Wheeler Glen , Colin Brownlee not provided
Published: April 2017

A method to load algal cells with dextran-conjugated fluorescent dyes. This is a good way of testing and optimising conditions for biolistic DNA delivery.
Tecnologías de depuración y reutilización: nuevos enfoques.
Authors: Trapote-Jaume Arturo
Published: April 2017

En este artículo se revisan las principales tecnologías actuales de depuración de aguas residuales urbanas y de regeneración de aguas depuradas para su reutilización, así como una aproximación a las tendencias en estos campos. La tipología de tratamientos y tecnologías aplicables abarca una amplia gama de combinaciones de procesos aerobios y anaerobios, de biomasa fija y suspendida, sistemas intensivos y extensivos, centralizados y descentralizados, etc. Además de optimizar la eficiencia de los procesos de tratamiento, las tendencias en I+D+i se están orientando, en buena medida, a la eliminación de los denominados contaminantes emergentes y al desarrollo de tecnologías de regeneración para la reutilización, entre las que cabe destacar los procesos de membrana. En todo caso, los futuros desarrollos tecnológicos deberían priorizar el uso eficiente y sostenible de la energía y de los recursos naturales, en general, y del agua, en particular.
Métodos de valoración ambiental aplicados a la regeneración y reutilización de aguas residuales en agricultura
Authors: Alfranca-Burriel Óscar
Published: April 2017

El análisis económico y financiero de los proyectos de sistemas de regeneración y reutilización de aguas residuales se ha concentrado frecuentemente en los costes y beneficios privados, tanto por las dificultades metodológicas relacionadas con la estimación de las externalidades, como por la disponibilidad de datos necesarios para su valoración. La consideración de los costes y beneficios ambientales permite una mejora sustancial en el diseño y gestión de los sistemas de regeneración y reutilización de aguas residuales, ya sean públicos o privados. Como consecuencia, también se produce una mejora en la gestión de las inversiones en estos sistemas de tratamiento. El objetivo de este trabajo es presentar unos fundamentos básicos para los principales métodos de valoración ambiental. Y muy especialmente, cuando estos son aplicados en actividades relacionadas con el uso de aguas residuales en agricultura.
El agua mercantil: de las concesiones a los contratos y otras formalidades (México, 1880-1976)
Authors: León-Fuentes Nelly Josefa
Published: April 2017

En este artículo se analiza cómo el agua en México, desde la época de la colonia, experimenta su proceso de privatización y de incorporación como servicio público. Desde entonces, ha estado sujeta a las formas de control y regulación de la administración de los gobiernos municipales y de los sectores sociales con poder económico y político. La información remite a las distintas modalidades en los procesos de gestión que regularon el abasto de agua a las ciudades y con ello contribuyeron a la modernización del país durante el periodo de 1880-1940. Un aspecto relevante del trabajo es que se subrayan los alcances y limitaciones financieras, organizativas y técnicas de los municipios, cuestiones que mantuvieron a la institución local en una relación vulnerable y desventajosa con otros niveles de gobierno y la iniciativa privada.
Time to Cut the Cord
Authors: Budin Wendy C.
Published: April 2017

In this column, the editor of The Journal of Perinatal Education discusses the latest consensus on recommendation for timing of umbilical cord clamping. The editor also describes the contents of this issue, which offer a broad range of resources, research, and inspiration for childbirth educators in their efforts to promote, support, and protect natural, safe, and healthy birth.
Grand Multiparous Mothers’ Embodied Experiences of Natural and Technological Altered Births
Authors: Fleming Susan E. , Vandermause Roxanne , Shaw Michele , Severtsen Billie
Published: April 2017

In-depth interviews of a purposive sample (n = 14) of grand multipara mothers (five or more births) was conducted to investigate the mothers’ embodied experiences of natural, technologically altered births and oxytocin inductions in U.S. hospitals from 1973 to 2007. A comprehensive secondary analysis of the lived experiences of natural birth and the high use of technology and oxytocin during birth, which was found in an original theme of a previous study, was explored. An overarching theme emerged of Embodiment of Birthing in U.S. Hospitals. Two patterns: Embodied Technological Altered Natural Births and Embodied Technologically Altered Induced Births were uncovered. Childbirth educators, doulas, and nurses are an integral part of creating changes in hospital settings, which discourage nonmedically indicated inductions and encourages changes in hospitals.
Management of an Immediate Implant Horizontal Defect Using Freeze‐Dried Bone Allograft and a Neodymium:Yttrium‐Aluminum‐Garnet Laser
Authors: Johnson Thomas M. , Jusino Miguel A.
Published: April 2017

Introduction: A contemporary protocol for managing horizontal alveolar defects adjacent to immediate implants includes placement of a well‐designed provisional restoration to contain graft material and seal the socket. However, immediate provisionalization is not always possible or practical.

Case Presentation: A 39‐year‐old male presented with a non‐restorable tooth #29, which was extracted. An immediate implant was placed in the tooth #29 position, and a freeze‐dried bone allograft was placed in the horizontal defect between the implant platform and osseous walls. A neodymium:yttrium‐aluminum‐garnet (Nd:YAG) laser was used to create a stable fibrin clot over the graft material. After 31 months, favorable radiographic bone levels and complete papilla fill were noted.

Conclusion: The present case illustrates use of an Nd:YAG laser in the management of an immediate implant horizontal defect in lieu of an immediate provisional restoration.
Metabolite profiling of tartary buckwheat-an underutilized neutraceutical crop of Kashmir Himalaya
Authors: Pirzadah Tanveer Bilal , Malik Bisma , Tahir Inayatullah , Rehman Reiaz Ul
Published: April 2017

The aim of the present study was to explore the possible metabolites in the methanolic extract of root, stem, groat and hull of the neutraceutical crop, Fagopyrum tataricum using GC-MS technique. From GC-MS metabolite profiling, over 90 different metabolites were identified among root, stem, groat and hull extract.  The most prevailing compounds were 3, 3’, 4’, 5, 7-pentahydroflavone-3-rhamnoglucoside (71.94%) in groat, 9, 12-octadecadienoic acid (49.38%) in root, 6-octadecanoic acid, a steric acid (70.46%) in hull and Cis-9-hexadecanal (13.38%) in stem. Present investigation reveals that F. tataricum is an excellent source of many metabolites such as, fatty acids, hydrocarbons, steroids, terpenoids, esters, organic acids and aldehydes with excellent pharmaceutical properties. These results suggest that tartary buckwheat could be a promising alternative in the functional food sector and neutraceutical to improve social well-being and diminish malnutrition.
Medicinal plants used Against Typhoid Fever and Toothache in Pir-Panchal Range of the Shopian District of Kashmir Himalaya.
Authors: Singh Sumer , Khanday Zakir Hussain
Published: April 2017

 

The present study was undertaken with a view to explore the possibilities of utilizing the plant resources of the district Shopian. A total of plant / specimens along with detailed information and their uses would serve as a valuable record for future reference & study. Most of these plants are wild and some plants are cultivated. The present study reveals that 22 medicinal plants belonging to 14-families are being used for Typhoid fever & Toothache in the Shopian district of Kashmir Himalaya. Of these 22 medicinal plants, 5 plant species are used both for fever and toothache. These medicinal plants have been arranged alphabetically. Despite extensive use of medicinal plants by the people of this region, extensive work has not been done as yet on ethnomedicinal& other aspects. The present study is an attempt to generate interest among the society regarding the potential of natural alternatives in preventing Typhoid fever and Tooth diseases in the study area. 
Learning Logic
Authors: Plowright Stephen
Published: April 2017

This book is intended to serve as a compact manual of concepts and symbols used in critical thinking and formal logic. While most people believe that they can present a sound argument, or spot a faulty one, the majority are often unaware of the errors they make. This is particularly true when numbers or statistical evidence are involved.

Logic is a valuable skill explicitly required in many pursuits including higher education,the sciences, law, engineering, security, medicine, information technology, and mathematics, to name a few. However it is often not formally taught in these fields.

The aim of this book is to provide a basic but firm foundation in the concepts and symbols of formal reasoning for those who may want to take this study further, or who are pursuing studies or vocations that require logic, or who are just curious. To make learning easier, the notation used has been chosen to be consistent, symmetrical, intuitive, and widely used.
Regularizing algorithm for mixed matrix pencils
Authors: Klymchuk Tetiana
Published: April 2017

P. Van Dooren (1979) constructed an algorithm for computing all singular summands of Kronecker’s canonical form of a matrix pencil. His algorithm uses only unitary transformations, which improves its numerical stability. We extend Van Dooren’s algorithm to square complex matrices with respect to consimilarity transformations

A
↦

SA

S

¯

−
1

$\begin{array}{}
\displaystyle
A \mapsto SA{\bar S^{ - 1}}
\end{array}$

and to pairs of m × n complex matrices with respect to transformations

(
A
,
B
)

↦

(
SAR
,
SA

R

¯

)

$\begin{array}{}
\displaystyle
(A,B) \mapsto (SAR,SB\bar R)
\end{array}$

, in which S and R are nonsingular matrices.
Pengujian Prototipe Multipurpose Wheelchair
Authors: Mulyadi Mulyadi
Published: April 2017

Dalam pembuatan sebuah produk dapat dikatakan memenuhi fungsi dan berguna apabila sudah dicoba dan dilakukan pengujian. Pengujian dapat berarti proses untuk mengecek apakah suatu perangkat atau prototype yang   dihasilkan   sudah   dapat  dijalankan   sesuai   dengan  standar  tertentu. Standar yang dijadikan acuan dapat berupa menurut instansi tertentu ataupun disesuaikan dengan keperluan customer/user. Dalam penelitian ini alat atau prototype yang uji adalah sebuah kursi roda multipurpose hasil rancang bangun ardhi dan mulyadi tahun 2014. Pengujian yang dilakukan adalah uji fungsi komponen, performance dan uji posisi tubuh pengguna kursi roda multipurpose secara manual menggunakan tabel RULA dibantu dengan software NexGen Ergonomics.Rapid Upper Limb Assessment (RULA) merupakan sebuah metode untuk menilai postur, gaya, dan gerakan suatu aktivitas kerja yang berkaitan dengan penggunaan anggota tubuh bagian atas (upper limb). Metode ini  menggunakan diagram postur tubuh dan tabel penilaian untuk memberikan evaluasi terhadap faktor resiko yang akan dialami oleh pengguna. Faktor-faktor resiko yang diselidiki dalam metode ini adalah yang telah dideskripsikan oleh McPhee’ sebagai faktor beban eksternal (external load factors) yang meliputi: jumlah gerakan, kerja otot statis, gaya, postur kerja yang ditentukan oleh perlengkapan dan peralatan, dan waktu kerja tanpa istirahat. Sedangkan bagian –bagian tubuh yang dievaluasi meliputi Grup A dan B, yaitu bagian lengan atas dan bawah, serta pergelangan tangan. Grup B, meliputi: leher, punggung, dan kaki. Responden yang akan diuji dipilih dengan berat badan 50kg. Uji fungsi komponen kursi roda multipurpose dilakukan dengan cara memvalidasi, jika komponen tersebut berfungsi dengan baik maka pada kolom fungsi dipilih “ya” dan sebaliknya jika komponen tersebut tidak dapat berfungsi dengan baik maka pada kolom fungsi dipilih “tidak” diberi tanda (dicentang). Uji performance meliputi kemampuan kestabilan dudukan dijalan menanjak dan menurun, kemampuan mengangkat, kemampuan lipat dan kemampuan sandaran direbahkan. Dari hasil pengujian menghasilkan uji fungsi komponen baik untuk semua komponen, performansi kursi roda diantaranya kursi roda bisa dilipat dengan melepas tempat duduk dan sandaran , bisa direbahkan sampai 165º, tempat duduk bisa stabil pada saat bergerak menanjak dan menurun dengan sudut menanjak dan menurun 15º, kemudian bisa menjadi meja periksa dengan ketinggian 58cm dari 75cm standar minimum ketinggian meja periksa yang ditargetkan dan tingkat resiko cidera pengguna kursi roda multipurpose mendapat nilai point 2 yang artinya kursi roda dikategorikan dalam batas  aman dan ergonomis.
Analisa Perbandingan Pelapisan Galvanis Elektroplating Dengan Hot Dip Galvanizing Terhadap Ketahanan Korosi Dan Kekerasan Pada Baja
Authors: Wahyudi Yoyok , Fahruddin A’rasy
Published: April 2017

Galvanizing adalah kata lain dari proses pelapisan menggunakan zinc yang diterapkan pada besi atau benda-benda yang terbuat dari logam untuk mencegah korosi. Proses galvanisasi terbagi menjadi dua yaitu galvanis elektroplating dan hot dip galvanizing. Dalam penelitian ini dilakukan perbandingan terhadap hasil pengujian kekerasan dan laju korosi pada baja karbon JIS3101ss400 terhadap larutan asam sulfat (H2SO4). Dari hasil pengujian kekerasan material galvanis elektroplating nilai kekerasannya lebih keras yaitu, Nilai kekerasan lapisan galvanis elektroplating yang mencapai 200,1 VHN lebih keras dibandingkan dengan logam dasar 193,8 VHN maupun  pada hot dip galvanis 1 menit 184,1 VHN, hot dip galvanis 3 menit 157,1 VHN, hot dip galvanis 131,7 VHN. Sedangkan laju korosi terbesar terjadi pada pelapisan hot dip galvanis 5 menit dengan waktu pengujian selama 5 hari, yaitu 479,11 mpy; 347,18 mpy; 458,03 mpy, sedangkan laju korosi terkecil terjadi pada pelapisan galvanis elektroplating 49,35 mpy; 64,23 mpy; 65,47 mpy.
El mantenimiento en los procesos industriales y la causa raíz de los problemas
Authors: Prada Ricardo
Published: April 2017

ONTARE. REVISTA DE INVESTIGACIÓN DE LA FACULTAD DE INGENIERÍA

Paradas intempestivas de la producción ocasionadas por falta de mantenimiento, en momentos en que hay entregas críticas de por medio, pueden tener tal impacto negativo que conllevan en ocasiones hasta la pérdida total de confianza por parte del cliente y por ende, la reducción de futuros negocios. Las empresas que desean alcanzar la competitividad y niveles adecuados de rendimiento en el mercado global de nuestros tiempos, requieren no sólo que su personal esté debidamente preparado y capacitado sobre reparaciones básicas, sino que además, los gerentes mismos tengan clara la importancia delmantenimiento y conozcan cómo actuar ante imprevistos, muchas veces recurrentes, por paradas intempestivas en sus plantas, por la falta de un adecuado programa de mantenimiento que les permita reducir los costos de operación, mejorar la productividad, maximizando el rendimiento de los recursos invertidos.
Estudio químico de la especie colombiana pentacalia abietina como nueva fuente natural de compuestos de tipo kaurano y quinol
Authors: Santana Alba Iván Fernando , Varela Martínez Diana Angélica
Published: April 2017

ONTARE. REVISTA DE INVESTIGACIÓN DE LA FACULTAD DE INGENIERÍA

Investigaciones recientes indican que en distintas especies del género Pentacalia se han aislado e identificado sustancias esteroidales como el sitosterol y el β-sitosterol, cumarinas como la escopoletina y la geranilescopoletina, kauranos y kauranoides, quinoles como la jacaranona y la metiljacaranona y glicósidos de flavonoides entre otras, con actividades biológicas antifúngicas, antibacteriales, cardiotónicas, anticancerígenas etc, para síntesis en la industria farmacéutica, farmacológica y cosmética. En el presente trabajo se llevó a cabo el estudio de la especie colombiana Pentacalia abietina (Willd. ex. Wedd) Cuatrec., para determinar metabolitos secundarios; se fundamentó en encontrar una nueva fuente de sustancias con actividad biológica del tipo kaurano y quinol, a las que se les ha podido comprobar acción antibacterial, antiparasitaria, antiinflamatoria, antitumoral y antifúngica y cuyas estructuras son de gran interés para síntesis en la industria farmacéutica, farmacológica y cosmética.
Anaesthetic management of a patient with compromised cerebral circulation
Authors: Bezzina Maureen , Dent Howard
Published: April 2017

We present the case of a patient who presented for right total parotidectomy and level 2 neck dissection. He was known to have left internal carotid artery occlusion, and on pre‐operative computerised tomography (CT) angiography, right vertebral artery hypoplasia and 40% occlusion of the right carotid artery were demonstrated. The challenges for this case were that brain circulation was dependent on his right internal carotid artery and left vertebral artery and it was therefore essential to ensure that positioning of the patient for the duration of surgery did not compromise this circulation. Moreover elective hypotensive anaesthesia had to be avoided making surgery more difficult. We describe a pre‐operative assessment of the effect of head position on cerebral perfusion and discuss the use of bilateral BIS™ to monitor cerebral perfusion intra‐operatively.
A pesquisa de cliente oculto e a prática de seleção dos pesquisadores
Authors: Casartelli Leonardo Vendramini , Prates Mariana Lima , Las Casas Alexandre Luzzi , Silva Regiani Salvático Pereira da
Published: April 2017

A busca pela qualidade tem levado as empresas a se preocuparem com o atendimento ao consumidor. A pesquisa de cliente oculto se tornou uma das principais formas utilizadas pelas empresas para avaliar a qualidade da sua prestação de serviço, que terceirizam essas pesquisas com agências de pesquisa especializadas. No entanto, a contratação do pesquisador pode ser fundamental para o sucesso da pesquisa. O objetivo deste estudo é listar como as empresas que realizam as pesquisas de cliente oculto selecionam os pesquisadores e como é feita uma validação dos resultados para minimizar erros. Foi desenvolvida uma pesquisa qualitativa com 20 empresas pertencentes à Associação Brasileira de Empresas de Pesquisa (ABEP) localizadas em diferentes estados brasileiros. Como principais resultados do estudo, observou-se que as empresas não conseguem ter total certeza de que o pesquisador selecionado é o ideal para a pesquisa e que, para evitar erros, incorporam procedimentos que visam tanto ao processo de seleção dos pesquisadores quanto à validação dos resultados.
A presença das religiões no espaço público – uma análise crítica
Authors: Sinner Rudolf Von
Published: April 2017

Resumo: O Brasil é um país de crescente diversidade e competição religiosa. A presença das religiões no espaço público é evidente, porém ambígua. Num primeiro passo, este artigo mostra diferentes formas de tal presença. Em seguida, analisa deslocamentos da já hegemônica e ainda necessária teologia da libertação no contexto democrático brasileiro, em que a cidadania se tornou conceito-chave. Por fim, discute oportunidades de uma teologia pública que busque incentivar e, ao mesmo tempo, relativizar a contribuição das igrejas para a superação das desigualdades que tanto marcam o Brasil e o mundo.Palavras-chave: religiões; espaço público; Brasil; teologia da libertação; teologia pública.