bluuebunny/crossref_metadata_2025 huggingface dataset:
Direct contact membrane distillation for the treatment of wastewater for a cooling tower in the power industry
Authors: Ali A. , Criscuoli A. , Macedonio F. , Argurio P. , Figoli A. , Drioli E.
Published: August 2018

Water abstraction for cooling requirements in energy production accounts for more than 40% of the total gross abstraction in the European Union, thus driving the interest in using alternative water resources. The current study presents the application of direct contact membrane distillation for the treatment of wastewater from a flue gas desulphurization (FGD) plant for potential applications in cooling towers. Membrane distillation (MD) performance of two commercial lab-scale membrane modules (in capillary and flat configuration) was compared in terms of flux, specific energy consumption (SEC), and rejection towards non-volatiles present in wastewater samples, pretreated according to various protocols. For the flat module, two commercial membranes were tested. In all cases, a good quality permeate was produced, with stable flux over experimental time. SEC of MD for wastewater treatment, calculated experimentally, varied from 946 to 2,830 kWh/m3 for the various applied membranes operating under different conditions. MD allows extracting more than 80% freshwater from FGD wastewater stream while maintaining high (>99.60%) rejection towards electrical conductivity.
THERMOGRAVIMETRIC STUDIES OF NASAL GEL WITH DRY EXTRACT OF LICORICE ROOT AND ESSENTIAL OILS
Authors: A Rukhmakova Olga , A Karpenko Irina , G Yarnykh Tatyana
Published: August 2018

Objectives: The objectives of this study were to conduct thermogravimetric (TG) studies of nasal gel with dry extract of licorice root and essential oils for the treatment of viral rhinitis.Methods: TG analysis performs on the derivative Q-1000 of the system F. Paulik, I. Paulik, and L. Efdei with platinum-based thermocouple. Then the curves T (temperature changes), TG (changes in weight), DTA (differentiated curve of thermal effects), DTG (differentiated weight change curve) were recorded. As an inert material, the standard is usually aluminum oxide, which should not undergo transformations with the release or absorption of heat in the temperature range under study. The temperature difference of the sample and the standard is determined by the differential thermocouple. The samples were heated in ceramic crucibles from 18 to 500°C in the air. The heating rate was 5°C in min. The weight of the samples was 50 mg.Results: In analyzing the derivatograms of all samples, it was found that the developed nasal dosage form of natural raw compounds on the base of carbomer gel is a mechanical mixture of active ingredients and excipients since its ingredients do not interact with each other.The production of nasal gel with dry extract of licorice root and essential oils of Siberian pine and eucalyptus at temperatures taken in the process of carbomer gel (room temperature) does not lead to destruction of the components of investigated dosage form.Conclusion: The developed nasal dosage form of natural raw compounds on the base of carbomer gel is a mechanical mixture of active ingredients and excipients since its ingredients do not interact with each other. The production of nasal gel with dry extract of licorice root and essential oils of Siberian pine and eucalyptus at temperatures taken in the process of carbomer gel (room temperature) does not lead to the destruction of the components of investigated dosage form.
FORMULATION AND EVALUATION OF IN VITRO TRANSDERMAL PATCH DICLOFENAC SODIUM USING CHITOSAN POLYMER AND POLYVINYL ALCOHOL CROSS-LINKED TRIPOLYPHOSPHATE SODIUM
Authors: Reveny Julia , Sumaiyah Sumaiyah
Published: August 2018

Objective: The aim of this study was to investigate diclofenac sodium patches using chitosan (Ch) and polyvinyl (PVA) alcohol cross-linked tripolyphosphate sodium (TPP) to increased transdermal permeation of the drug from the matrix system across rabbit skin.Materials and Methods: The chemical characterization of diclofenac sodium was done by ultraviolet-visible spectrophotometry. Formulation of diclofenac sodium patches using solvent evaporation method with cross-link technique. Evaluation of physical character of the film includes organoleptic observation, weight test, thickness, % moisture absorption, fold resistance, interaction between materials used Fourier transform infrared (FTIR), and active substance levels. The drug release was determined using Franz diffusion cells in phosphate buffer (pH 7.4).Results: The result of physiochemical parameters of the transdermal patch were found satisfactory. Formula F1, F2, F3, and F4 produce patches with fine texture, F5 and F6 formulas produce patches with coarse texture. Formula F1, F2, F5, and F6 are flexible and fulfill the multiplier test requirements, while the F3 and F4 formulas are not flexible and do not meet the multiplier test requirements. The patch weight, thickness, and drug content were uniform. The release of patches with following the zero-order release. The optimal formula with the total sodium diclofenac released as much as 17.89 μg, the release flux of 89.42 μg/cm²/h of permeation time of 10 h and the moisture absorption rate of 1.07±0.193. The FTIR data of rabbit skin indicated Ch and PVA alcohol cross-linked TPP increase transdermal permeation of diclofenac sodium in the stratum corneum.Conclusion: The diclofenac sodium can be prepared by cross-linked method, resulted in a better discharge profile.
EFFECT OF SITAGLIPTIN ON GLYCEMIC CONTROL AND BEYOND - IN PATIENTS WITH TYPE 2 DIABETES MELLITUS
Authors: Ravichandar Ramya , Nagarajan Aravind Anapathoor
Published: August 2018

Objective: The objective of the study was to assess the pleiotropic effects of Sitagliptin as add-on therapy to the conventional antidiabetic drugs.Methods: This was designed as a prospective study. 140 patients with type 2 diabetes mellitus (T2DM) whose glycated hemoglobin (HbA1c) was >7% despite receiving education on diet and exercise and/or medications were enrolled in this study. Sitagliptin (100 mg) was administered once a day orally for 6 months as an add-on therapy with the conventional antidiabetic drugs. The outcome of the therapy was assessed on the level of improvement in the fasting plasma glucose, postprandial plasma glucose, HbA1c levels, lipid profile, body mass index, blood pressure, and albuminuria in the third and 6th month when compared to the first visit.Results: After 6 months of treatment with Sitagliptin, fasting blood glucose levels significantly reduced (202.6±49.21 to 186.1±50.14, p=0.029) as well as HbA1c (9.5±1.27 to 9.1±1.28, p=0.016). There was a statistically significant (p<0.001) reduction of blood pressure, cholesterol, and urinary albumin-creatinine ratio progressively.Conclusion: Sitagliptin has a significant effect on lipid profile, blood pressure and albuminuria in addition to its effect on blood glucose profile and HbA1c without many side effects, in patients with T2DM.
ASSESSMENT OF SUBCHRONIC TOXICITY OF FERMENTED HOUTTUYNIA CORDATA THUNB. USING RODENT MODEL SYSTEM
Authors: Chaiyasut Chaiyavat , Sivamaruthi Bhagavathi Sundaram , Duangjitcharoen Yodsawee , Kesika Periyanaina , Sirilun Sasithorn , Chaiyasut Khontaros , Peerajan Sartjin
Published: August 2018

Objective: The present study was intended to evaluate the subchronic toxicity of Lactobacillus-mediated fermented Houttuynia cordata juice (FHJ) using rodent model system.Methods: FHJ was prepared and the microbial load, lactic acid content, and pH was estimated. Rats were fed with different doses of FHJ for 60 days. The body mass changes were measured during FHJ supplementation. After the treatment period, blood and organs of the experimental rats were collected. The samples were subjected to hematological and biochemical analysis by following standard hospital protocols.Results: The pH of FHJ after 30 days of fermentation was 3.63. The lactic acid content of FHJ was gradually increased and reached 19.70 mg per mL after 30 days of the fermentation process. Lactobacillus load was high in FHJ after 30 days and no Bacillus spp. and yeast were detected in FHJ at any point of fermentation. There were no significant changes in body weight of male and female experimental rats supplemented with FHJ, irrespective of dose. There were no significant treatment-related pathological changes found in any organ of the experimental rats at all tested dose levels when compared with organs in control animals. There were no significant changes observed in red blood cells (RBCs), white blood cells (WBCs), hemoglobin, hematocrits, lymphocyte, and platelets level of male rats of all groups. Whereas, significant (p<0.01) changes were observed in the RBC (1.02±0.26 106/mm3) of female rats in effective dose (ED) group compared to control. Similarly, significant (p<0.01) changes were detected in the WBC level of female rats in high dose (−7.53±0.03 103/mm3), and post-ED group (−8.86±0.75 103/mm3) compared to control. There were no alterations in tested biochemical parameters of experimental rats.Conclusion: The FHJ was rich in probiotic Lactobacillus. The supplementation of FHJ (9 mL/kg/day) for 60 days did not significantly affect the body mass, internal organs, hematological, and biochemical parameters of rats. The results suggested that FHJ is qualified for the human consumption.
El Faktum de la razón como actividad autoconstitutiva. Sobre la fundamentación de la moralidad kantiana
Authors: Macedo Rodríguez Gustavo
Published: August 2018

En el § 7 de la Crítica de la razón prácticaKant expone su primera definición de la ley moral universal (a la cual llama “imperativo categórico”). Ahí afirma que la conciencia de ella es un “Faktum de la razón”. La ambigüedad de esta expresión ha hecho que algunos autores argumenten que Kant no deduce la ley moral satisfactoriamente ni aclara cómo llegamos a ser conscientes de ella. Sin embargo estos críticos olvidan en sus análisis un aspecto relevante de la filosofía moral kantiana y que es de gran relevancia en los estudios contemporáneos de la filosofía de la acción: el carácter autoconstitutivo del yo o del sujeto racional y su papel en la fundamentación de la moralidad. Sostengo que el Faktum de la razón debe entenderse fundamentalmente como un acto autoconstitutivo.
Development of Historical Science with the Support of the Russian Foundation for Humanities – the Russian Foundation for Basic Research
Authors: Мясников Владимир , Myasnikov Vladimir
Published: August 2018

The article examines significant results of competitive activities carried out by the Russian Foundation for Humanities and the Russian Foundation for Basic Research throughout the past 25 years.
APRESENTAÇÃO: POLÍTICAS DE QUALIFICAÇÃO E O ESVAZIAMENTO DO DIREITO À EDUCAÇÃO
Authors: Lima Marcelo
Published: August 2018

A partir do ano de 2018 a Revista Trabalho Necessário passou a editar números temáticos coordenados por grupos de pesquisa associados ao NEDDATE, considerando sua afinidade com a linha editorial da revista, - o materialismo histórico. Assim, como meio de veiculação e mediação do pensamento crítico em relação ao mundo do trabalho, à formação humana e as relações históricas entre trabalho e educação, os números vêm sendo constituídos por artigos de autores convidados, vinculados a temática específica, além de artigos de demanda espontânea.
A VARBRUL Analysis on The Reporting Verb Propose in Electrical Engineering Research Articles
Authors: Nguyen Thong Vi
Published: August 2018

Choosing an appropriate reporting verb is not only a technique to report a claim but also a tool to imply the writer’s stance or attitude towards the claim. The manner in which the reporting verb is employed can reflect the writer’s underlying implication. By using a variationist framework, this study is an in-depth investigation on how reporting verbs are affected in Electrical engineering research articles, taking propose as a variation. With the assistance of VARBRUL program, 397 tokens from 160 Electrical research articles were analyzed. Past tenses of propose was selected as an application value. The results show that time periods that the articles are published and verb voices are two factors independent from the application value. Meanwhile, tense choice of the verb has a significant correlation with journal editions and verb types. In different journals, frequency of propose used in past tenses can vary, and a significant proportion of self-reporting propose is used in past tense. Regardless the limitation of sample size and verb types, the study is potential in analyzing reporting verb from the sociolinguistic approach in future.
Manifestation of 18th century literary movement through Sir Walter Scott’s Ivanhoe: History has been rewritten
Authors: Tapash Rudra
Published: August 2018

The nationalist feeling is agitating again today. As far as the new and ultra-developed global scenario is concerned, a huge facet of exotic invasiveness is up for grab. People of the modern era are in the thought process that their native country might be under serious threat; even though; they would remain silent until their entity rattles. The national tale before Ivanhoe reflects national character as a synecdoche of an unchanging cultural space; here patriotism is a self-evident legacy, the result of unbroken continuity and a populist community that unites aristocracy and folks. Arguably, Sir Scott for the first time, enlightens the vision of national continuity through the forcible, often violent, entry into history that does the feudal folk community become a nation. Patriotism is a positive thing for every nation and its people. It’s undoubtedly a notion of proud and passion. But here in the novel Ivanhoe, the other aspect of patriotism has been also highlighted, which has the notion of negativity and intolerance. However, we should keep in mind the time when Sir Scott was writing the novel. This was the period where just the resentment happened between France and England. In fact, the novel Ivanhoe was published (1819) just after few years of Napoleonic Wars, where eventually, England went on victorious after the defeat of Napoleon Bonaparte at the Battle of Waterloo. Therefore, against this historical backdrop, the continuous struggle in Ivanhoe between domineering Normans (French) and honest Englishmen (Saxon and their allies) took on center stage to redefine the concept of patriotism.
How Phase theory can be used to improve reading comprehension in children
Authors: Dewle Monal Manik
Published: August 2018

The present paper gives summary about some development theories which focuses on how development of reading takes place in a child. It then focuses on one particular theory, i.e. the Phase theory by Ehri (1999) where this theory mentions with the help of four stages how a child goes from the stage of no knowledge of letters to full knowledge of letters in children. Though this theory has been criticized by some but it is still considered as the theory which explains the basic stages of development in a child while reading while refuting the earlier theories on development of reading. Further, this paper discusses how this theory can be used as a form of instruction for children to develop reading comprehension.
The Language Attitudes of Minangkabau People Towards Minangkabau and Indonesian Language
Authors: Thamrin Temmy
Published: August 2018

This paper examines the language attitudes of Minangkabau people toward Minangkabau language (MIN) and Indonesian (BI) in West Sumatra, Indonesia. The data were collected in the form of questionnaires, in-depth interviews and participant observation with a sample of 200 Adult respondents in six research areas. This research uses a Likert scale with the categories classified into five alternatives (1 = Strongly Disagree, 2 = Disagree, 3 = Uncertain, 4 = Agree, and 5= strongly agree) and there are some tables analyzed based on yes/no questions, no=0 and yes=1. There are twelve questions on the questionnaire pertaining to the attitudes of adults. The results show that the adult attitudes can be classified into three categories, (1) positive; (2) negative; and (3) ambivalent attitudes. The third category is dominant. The term ‘ambivalent” is used for intermediate results. It is shown that the respondents expressed their feeling in both positive and negative comments in the same utterance when answering the questions related to MIN. For these responses, it is seen that there is a mixed feeling where they use “but” or “although” after expressing their positive feelings thereby countering their first statement. The evidence of the ambivalent and mixed feelings from respondents is shown. This means that Minangkabau people tend to avoid the conflict of having negative opinions; they tend to say what they mean in more indirect ways. On the other side, there is a positive attitude in response to the questions about BI. Majority of respondents have very strong positive attitudes towards BI
Húzd meg, ereszd meg. Szökés és utolérés útvesztőiben
Authors: Z. Karvalics László
Published: August 2018

Recenzió Angus Deaton A nagy szökés (Corvina Kiadó, Budapest, 2017, 416 oldal, ISBN 9789631364132) című könyvéről.
Micro-lensed polymeric optical fiber by CO2 laser cutting
Authors: Huang Juan , Wiener Jakub , Křemenáková Dana , Militký Jiří , Kašparová Marie
Published: August 2018

Thin polymeric optical fiber (POF) with good illumination is appreciated when POF is utilized as the luminous element in fabric structure. The CO2 laser cutting is employed to create a micro-lens in POF end to optimize the light gathering or light distribution in textile fields. The image analysis implies that the end shape varies from a polynomial to a lens with increasing laser energy, and meanwhile, the POF axis shifts gradually away from the central axis, which could be optimized by fiber rotation. A ball lens of POF end could be obtained at 1 μs mark speed and 850 rpm rotation speed.
Effect of beam profile on nanosecond laser drilling of 4H-SIC
Authors: Kim Byunggi , Iida Ryoichi , Kiyokawa Syunya , Fushinobu Kazuyoshi
Published: August 2018

Laser processing has a great advantage of drilling of various materials due to its extremely high processing speed, particularly in the case that the deep drilling depth is required. For this reason, the through substrate via of semiconductors is now considered as one of the main target areas of laser processing. In this study, the numerical model, in which beam propagation is considered, is used to investigate the effect of beam profile on thermal ablation of 4H-SiC compared with experimental results. Considering the implementation of Bessel beam, near-infrared wavelength that was selected as 4H-SiC has good transparency to those wavelengths at room temperature. The main absorption mechanism was free carrier absorption, which indicates significant temperature dependence. The authors found that threshold fluence is dependent on the spot size of the beam due to heat conduction during several nanoseconds. In other words, resolution of the nanosecond laser ablation is limited no matter how small the spot size of the beam is. Also, carbonization induced by low fluence under the lattice melting temperature led to enlargement of the drilled crater. Our experimental results showed that Gaussian beam is a more efficient tool for deep drilling than Bessel beam because propagation of Bessel beam wavefronts is disturbed by opaque solid materials. Therefore, although the beam width of our Bessel beam was critically narrow (1.5 μm), a crater with high aspect ratio was not obtained. As a consequence, this study gives experimental and simple numerical analysis on the mechanism of the nanosecond laser drilling process of 4H-SiC.
Leiomiossarcoma de veia cava inferior: um relato de caso
Authors: Fonseca Maria Silian Mandu , Cardoso Lenon , Lima Gustavo Rosa de Almeida , Liberato André Poci , Silveira Matheus Christian , Ramos Luiz Eduardo Lima , Carvalho Eduardo Miolo , Martinez Júlio César
Published: August 2018

O leiomiossarcoma de veia cava inferior é uma neoplasia rara originária das células do músculo liso da túnica média da veia cava inferior. Neste trabalho, relata-se o caso de um paciente do sexo feminino, 54 anos, com queixa inicial de dor abdominal em flanco direito há dois anos, associada a perda de peso de 7 kg em dois meses, inapetência e prostração, cuja ultrassonografia de abdome total evidenciou lesão sólida, hipoecogênica e de contornos levemente bocelados na adjacência da veia cava inferior e da cabeça pancreática. Foi realizada ressecção da lesão e envio do material para análise anatomopatológica, que evidenciou leiomiossarcoma de veia cava inferior. Essas lesões têm mau prognóstico e o diagnóstico precoce e ressecção completa com margens cirúrgicas livres é a única chance de sobrevida a longo prazo.
Gelson Kalil
Authors: Araújo Rodolfo Pinto Machado de
Published: August 2018

Homenagem ao Prof. Gelson Kalil (1932-1996). Ministrou aulas na PUC-SP de 1958 até 1996. Foi Chefe da Clínica Propedêutica Médica por 20 anos. Hoje essa disciplina foi transformada nas Habilidades Clínicas.
Síndrome de realimentação: da fisiopatologia ao manejo
Authors: Sakai Alan Felipe , Costa Natalia Costa da
Published: August 2018

A síndrome de realimentação é um problema crescente e de extrema importância clínica, infelizmente diagnosticada tardiamente (provavelmente por ser mal reconhecida ou compreendida). Vários estudos já tentaram avaliar sua incidência, porém com resultados bastante variados. Os processos fisiopatológicos incluem distúrbios de glicose e de equilíbrio de fluidos, além de distúrbios eletrolíticos que envolvem principalmente os íons intracelulares fosfato, potássio e magnésio. Apesar de ser potencialmente evitável, está associada à alta morbidade e mortalidade. As equipes multiprofissionais podem ajudar a fornecer aconselhamento e educação em sua prevenção, reconhecimento e tratamento. Diretrizes de tratamento devem ser estabelecidas para facilitar isso.
Sífilis congênita no Brasil em 2001/2002 e 2012/2013: estudo de causas múltiplas de óbito
Authors: Machado Carla Jorge , Simão Andréa Branco , Gonçalves Rafael Valério , Azevedo Andréa Casagrande , Drumond Eliane De Freitas , Faria Mariana Gomes
Published: August 2018

Objetivos: Estudar e comparar óbitos por sífilis congênita no Brasil em 2001/2002 e 2012/2013. Métodos: Estudo transversal de óbitos perinatais do Sistema de Informação sobre Mortalidade com menção de sífilis congênita. Foram avaliados: história reprodutiva da mãe, aspectos sociodemográficos, gestação, parto, recém-nascido e causa do óbito. Foi feita comparação de proporções e teste t. O nível de significância adotado foi de 5%. Resultados: Ocorreram 330 e 933 óbitos perinatais com menção de sífilis congênita em 2001/2002 e 2012/2013, respectivamente. Em ambos os períodos, a média de idade das mães foi de pouco mais de 23 anos; mais da metade dos óbitos foi de filhos de mães residentes no Sudeste; a categoria mais comum de peso ao nascer foi 1.000 a menos de 2.500g; e 80% das causas básicas foi a sífilis congênita. O percentual de mães com mais de sete anos de escolaridade passou de 22,1 para 34,7% (p<0,001) do primeiro para o segundo período; a prematuridade foi mais frequente entre os que morreram (p<0,001) tendo aumentado no período; óbitos cujas causas básicas foram fatores maternos, complicações da gravidez e trabalho de parto aumentaram percentualmente dos dois biênios; houve redução daqueles óbitos causados por transtornos respiratórios e cardiovasculares específicos do período perinatal (p<0,001). Conclusão: A sífilis congênita é um problema de saúde pública no Brasil. O número de óbitos com menção da doença quase triplicou em 11 anos. Chama a atenção que ocorram óbitos de nascidos com peso viável, o que indica que tais óbitos são preveníveis.
Mental health indicators among pregnant Aboriginal women in Canada: results from the Maternity Experiences Survey
Authors: Nelson Chantal , Lawford Karen M. , Otterman Victoria , Darling Elizabeth K.
Published: August 2018

Introduction

There is little research done on mental health among pregnant Aboriginal
women. Therefore, the purpose of the study was to examine the prevalence of postpartum
depression (PPD) and its determinants, including pre-existing depression among
non-Aboriginal and Aboriginal women in Canada.

Methods

The Maternity Experiences Survey (MES) is a national survey of Canadian
women’s experiences and practices before conception, up to the early months of parenthood.
Predictors of PPD were calculated using the Mantel-Haenszel correction
method relative to the risk estimates based on the odds ratio from adjusted regression
analysis. The analysis was conducted among women who self-identified as Aboriginal
(Inuit, Métis or First Nations living off-reserve) and those who identified as
non-Aboriginal.

Results

The prevalence of pre-existing depression was higher among self-reported
First Nations off-reserve and Métis women than non-Aboriginal women. Inuit women
had the lowest prevalence of self-reported pre-existing depression, and Aboriginal
women reported a higher prevalence of PPD than non-Aboriginal women. Pre-existing
depression was not a predictor for PPD for Inuit or Métis women in this study but was
a positive predictor among First Nations off-reserve and non-Aboriginal women. A disproportionally
higher number of Aboriginal women reported experiencing abuse, as
compared to non-Aboriginal women.

Conclusion

Our study demonstrated that common predictors of PPD including anxiety,
experiencing stressful life events during pregnancy, having low levels of social support,
and a previous history of depression were consistent among non-Aboriginal women.
However, with the exception of the number of stressful events among First Nations offreserve,
these were not associated with PPD among Aboriginal women. This information
can be used to further increase awareness of mental health indicators among
Aboriginal women.
Indicateurs de santé mentale chez les femmes autochtones enceintes au Canada : résultats de l’Enquête sur l’expérience de la maternité
Authors: Nelson Chantal , Lawford Karen M. , Otterman Victoria , Darling Elizabeth K.
Published: August 2018

Introduction

On dispose de peu de recherches sur la santé mentale chez les femmes
autochtones enceintes, ce qui nous a conduit à examiner dans cette étude la prévalence
de la dépression post-partum (DPP) et ses déterminants, en tenant compte des antécédents
de dépression chez les femmes non autochtones et autochtones du Canada.

Méthodologie

L’Enquête sur l’expérience de la maternité (EEM) est une enquête nationale
portant sur l’expérience et les pratiques des femmes canadiennes préalablement à la
conception et jusqu’aux premiers mois de la maternité. On a calculé, à l’aide de la
méthode de correction Mantel-Haenszel, les estimations du risque pour les facteurs de
prédiction de la DPP en se basant sur les rapport de cotes de l’analyse de régression ajustée.
L’analyse a été menée auprès de femmes s'étant auto-identifiées comme autochtones
(Inuites, Métisses ou membres des Premières Nations vivant hors réserve) ou comme non
autochtones.

Résultats

La prévalence d'antécédents dépression était plus élevée chez les femmes
s'étant auto-identifiée comme membre des Premières Nations vivant hors réserve ou
métisses que chez les femmes non autochtones, les femmes inuites offraient la plus faible
prévalence d'antécédents de dépression autodéclarée. Les femmes autochtones avaient
une prévalence plus élevée de DPP que les femmes non autochtones. La présence
d'antécédents de dépression n'était pas un facteur de prédiction de DPP chez les femmes
inuites et métisses, mais s'est révélée en être un chez les femmes des Premières Nations
vivant hors réserve et chez les femmes non autochtones. Un nombre disproportionnellement
plus élevé de femmes autochtones que de femmes non autochtones ont déclaré
avoir été victimes de violence.

Conclusion

Notre étude a montré que les facteurs usuels de prédiction de DPP que sont
l’anxiété, les événements stressants de la vie pendant la grossesse, un faible niveau de
soutien social et des antécédents de dépression étaient bien présents chez les femmes non
autochtones mais que, à l’exception du nombre d’événements stressants chez les femmes
des Premières Nations vivant hors réserve, ces facteurs n'étaient pas associés à la DPP
chez les femmes autochtones. Ces résultats incitent à développer la sensibilité des indicateurs
de santé mentale pour les femmes autochtones.
Efficacité de l’outil CANRISK pour détecter la dysglycémie au sein d’une population d’origine sud-asiatique au Canada
Authors: Agarwal Gina , Jiang Ying , Lemieux Chantal , Rogers Van Katwyk Susan , Mao Yang , Orpana Heather , Fong Maylene , Morrison Howard
Published: August 2018

Introduction

Les personnes d’origine sud-asiatique présentent un risque supérieur à la
moyenne de développer un diabète de type 2. Nous avons vérifié l’efficacité de CANRISK,
un outil d’évaluation du risque de diabète, en examinant sa sensibilité et sa spécificité en
fonction de deux seuils de cotation différents prédéfinis et en comparant les participants
de 40 ans et plus et ceux de moins de 40 ans. Nous avons examiné la valeur prédictive
d’un modèle fondé sur les variables de CANRISK en comparant des seuils ethnospécifiques
de l’indice de masse corporelle (IMC) et du tour de taille (TT) avec les seuils
originaux d’IMC et de TT, afin de voir l'on pouvait améliorer cette valeur prédictive au
sein de cette population.

Méthodologie

On a recruté, dans diverses communautés et divers centres de santé de
sept provinces, des Canadiens d’origine sud-asiatique âgés de 18 à 78 ans dont l’état
diabétique était inconnu. On a recueilli les données de CANRISK puis réalisé une épreuve
d’hyperglycémie provoquée par voie orale. On a procédé à une analyse descriptive, à une
régression logistique incluant des seuils ethnospécifiques d’IMC et de TT et à des analyses
de sensibilité et de spécificité.

Résultats

On a recruté 832 participants (dont 584 de moins de 40 ans). Sur l'ensemble de
l'échantillon, les modèles de régression logistique fondés sur les données de CANRISK
ont prédit la dysglycémie de manière efficace (aire sous la courbe [ASC] de 0,80). En
revanche, en utilisant différents seuils d’IMC et de TT avec l’algorithme de cotation, la
valeur prédictive fondée sur l’ASC ne s’est pas améliorée. La sensibilité et la spécificité de
CANRISK avec le seuil prédéterminé « risque élevé » original à 33 points étaient de respectivement
93 % et 35 % chez les 40 ans ou plus et de respectivement 33 % et 92 % chez
les moins de 40 ans. L’utilisation du seuil prédéterminé « risque modéré » à 21 points a
permis d’améliorer la sensibilité à 77 % et la spécificité à 53 % au sein du groupe d’âge
plus jeune.

Conclusion

Le questionnaire actuel CANRISK est un outil d’évaluation du risque adéquat
pour la dysglycémie chez les Canadiens d’origine sud-asiatique âgés de 40 ans et
plus, mais il ne fonctionne pas aussi bien pour les moins de 40 ans. Utiliser un seuil plus
faible à 21 points est pertinent chez les plus jeunes afin de diminuer les faux négatifs. Les
seuils d’IMC et de TT fondés sur l’origine ethnique n’ont pas permis d’améliorer la valeur
prédictive de l’algorithme de cotation de CANRISK que mesure l’ASC.
Reflexões fenomenológicas sobre jovem arte contemporânea: formas de sobrevivência nas obras de Inês Moura
Authors: Froehlich Juliana
Published: August 2018

O presente artigo debruça-se sobre um conjunto de obras de arte da artista visual Inês Moura, a saber, duas fotografias da série Paisagens (2012), três fotografias do estudo Our relationship explained by nature #1 (2012) e a instalação e site-specific Herbarium in loco (2011). São temas e motivos das obras que encaminham este texto: muros em ruínas, uma hera que espalha suas raízes sobre um muro, a vegetação que toma uma construção, plantas, folhas e galhos que ocupam um espaço vazio de concreto. Junto à tensão entre vegetações e construções, os trabalhos apresentam as indagações sobre ser ‘jovem’ artista no circuito da arte contemporânea. Uma vez que compreendemos que Inês, pintora de formação, pensa e ‘retrata’ seus motivos, assim como, o mundo em que habita. Na forma das obras e em seus motivos encontramos indícios da margem, da tensão e da sobrevivência de organismos de modo que sobrevivência se apresenta como a noção por onde interpretamos a situação do chamado ‘jovem artista’. Refletimos aqui, portanto, sobre a forma com a qual a obra se apresenta, sobre seu conteúdo e sobre o contexto da arte contemporânea.
Contato (1997): a imaginação e o conhecimento científico.
Authors: Judensnaider Ivy , Santos Fernando Santiago dos
Published: August 2018

O “fazer científico” moderno pauta-se, invariavelmente, em um esquema procedimental que se articula à observação e à experimentação, negando formas de conhecimento que não atendam a seus princípios epistemológicos e de racionalidade metodológica. Criação e imaginação são campos raramente discutidos entre a comunidade científica, sendo, até, considerados inadequados. A crise da pós-modernidade coloca em xeque, até certo ponto, esta hegemonia da racionalidade e do conhecimento matematizável, coluna de sustentação da abstração dos fenômenos da natureza. Propomo-nos a discutir, com base no filme Contato (1997), de Zemeckis, que a imaginação e a experiência pessoal da protagonista, a cientista Ellie, podem ser elementos importantes – e por que não fundamentais? – da construção do conhecimento científico. A narrativa e a trama desta obra fílmica fazem-nos refletir sobre três argumentos plausíveis: prova da mentira, prova da verdade e prova da impossibilidade. Afinal, faz-se ciência somente com base em fatos observáveis, ou também é possível fazer ciência com base na imaginação? Este artigo tenta discutir esta possibilidade.
Flusser e as dores do espaço: a articulação do pensamento por meio do espaço expositivo.
Authors: Hosni Cássia
Published: August 2018

A exposição Flusser e as dores do espaço, apresentada no SESC Ipiranga, São Paulo, trouxe para o espaço expositivo reflexões pertinentes a trajetória do filósofo e sua relação com a imaterialização da imagem técnica. A curadoria de Norval Baitello Junior e Camila Garcia concentrou-se em trazer o pensamento flusseriano de modo lúdico, explorando as relações com instalações artísticas, registros videográficos, documentações e eventos paralelos.
Image, Science and Technology: a Post-phenomenological Approach. Entrevista com Don Ihde
Authors: Wellner Galit
Published: August 2018

Image, Science and Technology: a Post-phenomenological Approach. Entrevista com Don Ihde
O que há para ver na imagem que temos diante de nós. Entrevista com Ricardo Fabbrini
Authors: Almeida Fernanda Albuquerque de
Published: August 2018

O que há para ver na imagem que temos diante de nós. Entrevista com Ricardo Fabbrini
Número Completo
Authors: Prometeica Revista
Published: August 2018

Número Completo
Lipid composition of raw and cooked Rapana venosa from the Black Sea
Authors: Merdzhanova Albena , Panayotova Veselina , Dobreva Diana A. , Stancheva Rostitsa , Peycheva Katya
Published: August 2018

Rapana venosa is an edible mollusc with nutritional and economic importance. There is limited information about its lipid composition. The aim of the present study is to provide information about lipid composition, fatty acid profiles, fat soluble vitamins and cholesterol content of raw and cooked Rapana venosa. Cooking did not affect the ratio of lipid classes, but fatty acids composition varied significantly. Considerable variations were observed in fatty acid distribution of total lipids and neutral lipids. Fatty acid groups of phospholipids remained unaffected by temperature treatment. The most abundant fatty acids in all lipid classes of raw and cooked specimens were palmitic acid (C16:0) and eicosapentaenoic acid (C20:5n-3). The sum of omega-3 polyunsaturated fatty acids (PUFA) was higher than omega-6 PUFA in all lipid fractions. The results of the present study showed that cooking process affected cholesterol, fat soluble vitamins and carotenoids content differently. Larger variations were observed for vitamin A, β-carotene and astaxanthin and to lesser for vitamin E. Cholesterol and vitamin D3 were also affected by the thermal stress. The present study revealed that Rapana venosa meat could be a good source of high quality nutritional lipids, which are well preserved even after culinary treatment
Drones and Jails
Authors: Prisznyák Szabolcs
Published: August 2018

The development of drones has been exceedingly rapid in the last few years. They can be used in many different areas of life, they are fit to solve a range of problems, in fact, in some fields they may open up new horizons. Besides their advantages, however, we must also see their downside. This article will focus on the development of these unmanned aerial vehicles and will elaborate on the regulations affecting the small-size devices, which are the most widespread. This section will be followed by the introduction of their potential use in law enforcement, with special focus on the protection of prisons. The paper will also discuss what hazards are involved in the illegal use of drones with regards to jails, and what response can be given to these new challenges.
Asymmetric snubberless current-fed full-bridge isolated DC-DC converters
Authors: Kosenko Roman , Blinov Andrei , Vinnikov Dmitri , Chub Andrii
Published: August 2018

This paper presents two isolated current-fed fullbridge DC-DC converters that can be used to interface a lower voltage source into a DC bus of higher voltage. The first topology uses a resonant circuit to force current redistribution between low-voltage-side transistors and a passive rectifier. The second topology utilizes an active rectifier with secondary modulation to achieve the same goal. The resonant circuit can be formed by using transformer leakage inductance and the parasitic capacitances of the switches. The converters feature soft switching of semiconductors over a wide range of operating conditions. This is achieved with decreased energy circulation when compared to existing topologies with symmetric control and with fewer semiconductors than in those with phase-shift control. The topologies can be implemented in renewable, supercapacitor, battery, fuel cell, and DC microgrid applications. Steady-state operation and design aspects of the converters are presented and verified experimentally with 400 W prototypes
A novel hysteresis power point optimizer for distributed solar power generation
Authors: Veligorskyi Oleksandr , Husev Oleksandr , Shevchenko Viktor , Tytelmaier Kostiantyn , Yershov Roman , Kosenko Roman , Vinnikov Dmitri
Published: August 2018

This paper proposes a new photovoltaic panel maximum-power-point optimizer based on a buck converter. It can be connected to the DC-link distributed energy harvesting system that should perform the true maximum-power-point tracking algorithm based on maintaining a constant DC link voltage. The algorithm is based on the sensorless hysteresis control and ensures high efficiency. Three different realizations of proposed hysteresis optimizers have been analyzed in the paper, including operation principle and adjustment of hysteresis intervals. An experimental study has been performed for a portable low-power photovoltaic system in case of different loads and irradiance levels. The efficiency of maximum power point tracking has been calculated analytically for different hysteresis intervals and validated by experiment, which proved a 97-98 % efficiency of tracking for different PV panel temperatures. The proposed solution is recommended to be used in small- and medium-sized power systems where the price of the conventional maximum power point tracking converter is very high and is comparable to the cost of the individual panel
Considerations regarding the concept of cost-effective power-assist wheelchair subsystems
Authors: Galkin Ilya , Podgornovs Andrejs , Blinov Andrei , Vitols Kristaps , Vorobyov Maxim , Kosenko Roman
Published: August 2018

The present paper deals with the concept of a cost-effective power-assistant wheelchair. An analysis of the market situation and recent technical achievements is done at the beginning. On its basis, a set of solutions suitable for the development of such wheelchairs has been composed. It is shown that the key features of the considered concept are: segmented electrical motor and drive, sectioned battery pack, modular charger and an ANN matrix that provides easy and intuitive interfacing of sensor networks, pseudo-bionic feedbacks and the decision-making unit. Within the scope of the paper, a 3D model has been developed and 3D modelling has been conducted. As a result, certain drawbacks in the design and placement of elements have been found and a modification of the concept has been proposed
The Relationship Between Quality of Student Contribution in Learning Activities and their Overall Performances in an Online Course
Authors: Banoor Rajabalee Yousra , Rennie Frank , Santally Mohammad Issack
Published: August 2018

In this research we studied the correlation between the level of students’ online participation and their overall performances. We examined in this study, the participation level in different learning activities assigned to two large cohorts of learners, and compared them with their final grades at the end of the year. We defined the quality of their participation in the online course as being classified into the level of learning activities in which they participated. Learning activities were grouped into four levels which were identified namely at the knowledge, understanding, critical thinking skills and practical competencies. The findings revealed that participation in higher-order online learning activities, that is the higher ability to show critical skills and practical competencies, resulted in better grades of the learners in the module. However, the results also highlighted that overall students had a tendency to score more marks in the knowledge category as the activities required lower order cognitive skills. It was further observed that low performers demonstrated a tendency to obtain lower marks in all the four grouping levels and vice-versa for high performers. Two key elements can be concluded from the findings. The first aspect is about instructional design of such online courses where there is a need for the inclusion of learning activities targeted at the development of different types of skills, and second is the distribution and weighting given to these categories. The recommendation is that for first year students, a greater weighting of marks toward knowledge level activities will generally encourage good performances, and this could be gradually reviewed when they move on to level 2 onwards in their studies.
Kleene Algebra of Partial Predicates
Authors: Korniłowicz Artur , Ivanov Ievgen , Nikitchenko Mykola
Published: August 2018

We show that the set of all partial predicates over a set D together with the disjunction, conjunction, and negation operations, defined in accordance with the truth tables of S.C. Kleene’s strong logic of indeterminacy [17], forms a Kleene algebra. A Kleene algebra is a De Morgan algebra [3] (also called quasi-Boolean algebra) which satisfies the condition x ∧¬:x ⩽ y ∨¬ :y (sometimes called the normality axiom). We use the formalization of De Morgan algebras from [8].

The term “Kleene algebra” was introduced by A. Monteiro and D. Brignole in [3]. A similar notion of a “normal i-lattice” had been previously studied by J.A. Kalman [16]. More details about the origin of this notion and its relation to other notions can be found in [24, 4, 1, 2]. It should be noted that there is a different widely known class of algebras, also called Kleene algebras [22, 6], which generalize the algebra of regular expressions, however, the term “Kleene algebra” used in this paper does not refer to them.

Algebras of partial predicates naturally arise in computability theory in the study on partial recursive predicates. They were studied in connection with non-classical logics [17, 5, 18, 32, 29, 30]. A partial predicate also corresponds to the notion of a partial set [26] on a given domain, which represents a (partial) property which for any given element of this domain may hold, not hold, or neither hold nor not hold. The field of all partial sets on a given domain is an algebra with generalized operations of union, intersection, complement, and three constants (0, 1, n which is the fixed point of complement) which can be generalized to an equational class of algebras called DMF-algebras (De Morgan algebras with a single fixed point of involution) [25]. In [27] partial sets and DMF-algebras were considered as a basis for unification of set-theoretic and linguistic approaches to probability.

Partial predicates over classes of mathematical models of data were used for formalizing semantics of computer programs in the composition-nominative approach to program formalization [31, 28, 33, 15], for formalizing extensions of the Floyd-Hoare logic [7, 9] which allow reasoning about properties of programs in the case of partial pre- and postconditions [23, 20, 19, 21], for formalizing dynamical models with partial behaviors in the context of the mathematical systems theory [11, 13, 14, 12, 10].
Survival and germinability of Rhynchosporium secalis conidia exposed to solar radiation
Authors: Al-Shehadah E. , Al-Daoude A. , Jawhar M.
Published: August 2018

Rhynchosporium secalis, the causal agent of barley scald disease, is a fungus commonly found in the environment. Disease spread within a field and between fields occurs through the aerial dispersal of the fungal spores. However, not much is known about the survival potential of fungal conidia exposed to solar radiation. In the present study, detached conidia of R. secalis were exposed simultaneously in the field to direct sunlight or placed in an adjacent ventilated enclosure in the dark for periods ranging from 0.5 to 8h. In addition, conidia were either exposed or not exposed to UV-C light (254 nm) for periods ranging between 0.5 and 60 min in the laboratory. After exposure, conidia were placed on water agar Petri dishes and allowed to germinate for 24h. Germinability of conidia was reduced by up to 94% after 8h of exposure to solar irradiance (670-860 Wm-2) in the field in comparison to the non-exposed control. Germinability of conidia in the laboratory was reduced up to ~100% by doses of UV-C light of 3.2±0.7 Wm-2. The results of this study will contribute to a better understanding of the relationship between climatic conditions and barley scald epidemics