bluuebunny/crossref_metadata_2025 huggingface dataset:
The Effects of Nanosilver, Encapsulated in a Polymeric Matrix, on Albino Rats Brain Tissue
Authors: Sosedova Larisa M. , Filippova Tamara M.
Published: January 2017

We showed the results of immunohistochemical investigation of outbred albino rat’s neural tissue exposed to 9-day exposure of nanobiocomposite, which consist silver nanoparticles encapsulated in natural biopolymer matrix - arabinogalactan. Investigation of white rats was composed of 2 stages: half of the rats in each group were sacrificed immediately after exposure (early period) and other rats – through 6 months after end of exposure (distant period). We showed that test substance causes functional changes in nervous tissue. After subacute administration of nanobiocomposite - argentumarabinogalaktan (nAG) we have observed changes of content of apoptotic and anti-apoptotic proteins caspase-3 and bcl-2 in nervous tissue of white rats. number of normal neurons producing the protein caspase-3 was increased sharply and number of immunonegative normal neurons was significantly reduced. Along with this there was a high level of bcl – 2, one function of which is to prevent apoptosis trigger. We revealed in samples a significant increase in number of neurons with bcl-2, but protective effect of this protein not fully realized, which leads to significant increase of amount ofdamaged hyperchromatic cells. Assessment of results of immunohistochemical study of white rat’s nervous tissue, according to the expression of the protein caspase-3 and bcl – 2, may lead conclusion about ability of nanosilver encapsulated in a polymer matrix to penetrate blood-brain barrier and induced start apoptotic cascade in cortical neurons.
Range of Resistance of Hydrobionts to Medium Contamination with Manufactured Nanoparticles
Authors: Morgaleva Tamara G. , Morgalev Yuri N. , Gosteva Irina A. , Morgalev Sergey Yu.
Published: January 2017

An assessment was performed to estimate ecological and biological effects of metallic and binary NPs of various chemical nature and structural characteristics. Application of rapid toxicity tests using hydrobionts of various trophic levels (E. coli, Сhlorella v. B., Paramecium c., Daphnia m. S., Danio r.) allowed to determine resistance range to NPs Ni, Pt, ZnO and CeO2. It was established that test reaction to contamination of water with NPs and development of adverse effects to phyto- and zooplankton is contingent on NPs physicochemical properties and sensitivity of hydrobionts. Concentrations of NPs not causing observed change of test reactions were determined. Chlorella v. B. was established to be the most vulnerable to contamination of medium with NPs; photosynthetic pigment quantity was determined to be the most sensitive parameter: nCeO2 L(E)С10 = 0.0007 mg/l, nNi L(E)С10 = 0.0015 mg/l, nZnO L(E)С10 = 0.0048 mg/l, nPt L(E)С10 = 0.033 mg/l. The highest resistance (L(E)С10 > 100 mg/l) to contamination shown by: E. Coli, Daphnia m. S., Danio r. tonPt; Danio r. to NNi and nZnO, E. Coli, Paramecium c. to nCeO2; and Danior r. by the parameter ‘embryotoxicity’. The most vulnerable chains of trophic structure of communities were revealed as well as ways of disrupting food pyramid of an aquatic system. Range of resistance or range of concentrations within which biota retains resistance was shown to be an integral characteristic of NPs effects on ecosystems.
Study on the Elemental Composition of Environmental Nanoparticles Separated in a Rotating Coiled Column: How Hazardous May Be Urban Dust and Volcanic Ash
Authors: Fedotov Petr S. , Ermolin Mikhail S.
Published: January 2017

Study on the elemental composition of nanoparticles is of great importance due to their high mobility in the environment and ability to penetrate into human organism. A global aspect is the transport of nutrient and toxic elements with environmental nanoparticles, which can serve as a carrier for these elements. Nanoparticles in complex polydisperse environmental samples such as dust, volcanic ash, or soil may represent only about thousandths or less of bulk sample. Therefore, their recovery followed by quantitative determination of analytes is a difficult task. A novel technique, sedimentation field-flow fractionation in a rotating coiled column, was applied to the fractionation of urban dust and volcanic ash samples with water being used as a carrier fluid. nanoand submicron particles have been separated, weighted, characterized by electronic microscopy and static laser light scattering, and then quantitatively analyzed by ICP-AES and ICP-MS (after digestion). In urban street dust samples, the elements that may be of anthropogenic origin (Zn, Cr, Ni, Cu, Cd, Sn, Pb) were found to concentrate mainly in <0.3 and 0.3-1 μm fractions. It has been shown that the concentrations of Cr, Ni, Zn, Pb, Sn in the finest fraction (<0.3 μm) of street dust can be one order of magnitude higher than the concentrations of elements in bulk sample and coarse fractions. For volcanic ash samples, it has been evaluated that nanoparticles may concentrate potentially toxic elements of volcanic gases. The concentrations of Zn, Cu, Pb, Tl, Bi, Sn, As, Sb in the size fraction <0.2 μm can be two orders of magnitude higher than the concentrations of these elements in bulk sample. Hence, measuring the total concentrations of elements in dust and ash leads to underestimation of the hazard of these samples. The proposed approach to the separation and quantitative analysis of environmental nanoparticles can be a powerful tool for risk assessment related to toxic elements in dust, ash, and other particulate matter.
Comparative Characteristics of Nanodisperse Labels for Immunochromatographic Test Systems
Authors: Taranova Nadezhda A. , Berlina Anna N. , Semeykina Anastasiya A. , Zherdev Anatoly V. , Dzantiev Boris B.
Published: January 2017

Three types of nanoparticles, quantum dots (QDs), gold particles (GPs), and latex particles (LPs), were compared as labels for immunochromatographic assay. The influence of the nature of the label on the analytical performance of the test systems was studied using the example of detection of the antibiotic chloramphenicol (CAP). The limits of detection of CAP are 0.1 ng/mL for QDs, 2.4 ng/mL for GPs, and 0.3 ng/mL for LPs. The unique structure and physical properties of the QD fluorescent labels ensure their competitive advantage over colorimetric labels. The proposed methodology is applicable to determination of characteristics of other nanodisperse labels.
Preparation of TiO2/Carbon Nanotubes Composites and a Study of their Adsorption on Organic Dyes
Authors: Romantsova Irina V. , Burakov Alexandr E. , Babkin Alexandr V. , Neskoromnaya Elena A. , Tkachev Alexey G.
Published: January 2017

In this paper, the results of experimental studies on the preparation and determination of adsorption characteristics of nanomodified titanium dioxide (TiO2) are presented. A commercially available TiO2 powder was used as starting material. The nanomodification process consisted in the synthesis of carbon nanotubes (CNTs) by chemical vapor deposition over a TiO2 sample in a batch reactor. The presence of the CNTs at the surface of that sample was confirmed by thermogravimetry, scanning electron microscopy, and Raman spectroscopy. To estimate adsorption parameters of the pristine (non-modified) and nanomodified materials, kinetic experiments on the adsorption of an organic dye, methyl orange, were conducted. It was found that the adsorption capacity of the nanomodified sample reaches its maximum value 1.5 times faster than that of the pristine one. The kinetics of the adsorption process was studied based on the following models: internal diffusion, pseudo-first-order, pseudo-second-order, and Elovich. Considering the calculated values of correlation coefficients obtained for those models, it can be assumed that the adsorption is satisfactorily described by the pseudo-second-order equation.
Mechanical Properties and Biocompatibility of the Ti-Based Low-Alloys Minor Alloying by the Noble Metals
Authors: Zadorozhnyy Vladislav Yu. , Shi Xue Tao , Wada Takeshi , Kato Hidemi , Louzguine-Luzgin Dmitri V.
Published: January 2017

This paper describes investigation of the mechanical properties and biocompatibility of the Ti-based low-alloys minor alloying by the noble metal. It was found that almost all of the investigated Ti-based low-alloys, minor alloying by the noble metal, have relatively high biocompatibility, but found to be very brittle during tensile tests. The Ti94Au3Nb3 alloy exhibited relatively good tensile mechanical properties, having very good plasticity.
Novel Baddeleyite-Based Zirconia Ceramics for Biomedical Applications
Authors: Tyurin Alexander I. , Zhigachev Andrey O. , Umrikhin Alexey V. , Rodaev Vyacheslav V. , Pirozhkova Tatyana S.
Published: January 2017

For the first time nanostructured engineering ceramics were prepared from natural zirconia mineral (baddeleyite) with CaO as a tetragonal phase stabilizer. The effect of synthesis conditions on microstructure and mechanical properties of the baddeleyite-based ceramics is reported, furthermore, the effect of calcia content on hardness and fracture toughness is studied. Optimal calcia concentration and synthesis conditions are found, corresponding hardness and fracture toughness values are 10,8 GPa and 13,3 MPa×m1/2. The reported mechanical properties are comparable to those typically reported for yttria-stabilized engineering zirconia ceramics, prepared from chemically synthesized zirconia.
Simple software solution for portfolio management for medical consultants
Authors: Lakshan M. T. D.
Published: January 2017

No abstract available
Social media in tourism: Establishing factors influencing attitudes towards the usage of social networking sites for trip organisation
Authors: Matikiti Rosemary , Mpinganjira Mercy , Roberts-Lombard Mornay
Published: January 2017

Purpose: The main aim of this study was to determine the attitude towards the use of SNSs for trip organisation and its precursors. Problem investigated: Tourism organisations and destination policy makers need to understand factors that influence tourist use of SNSs for trip organisation in order for them to be able to effectively utilise SNSs. Methodology: The methodological approach followed was exploratory and quantitative in nature. Data were collected from a total of 340 respondents using a structured questionnaire. Structural equation modelling through the use of Partial Least Squares was for data analysis. Findings and implications: The results show that attitude towards the use of SNSs for trip organisation is affected by perceived benefits, subjective norm and perceived behavioural control, with perceived usefulness having the greatest influence. The implication is that managers of tourism organisations need to ensure that their sites are informative, easy to use and able to safeguard users’ online privacy if they are to attract more and loyal users to their sites. Value of the research: Very little research in the South African context exists with specific reference to how SNSs are being utilised for trip organisation. This article contributes by unravelling factors that influence the use of SNSs for trip organisation. Conclusion: Perceived usefulness measured by functional benefits and social benefits is the key factor that influences attitude towards the use of SNSs for trip organisation. It is the responsibility of destination marketers to provide all the necessary or valuable information on their SNS accounts, in order to encourage travellers to use SNSs
The diagnosis of bilateral primary renal paragangliomas in a cat
Authors: Friedlein Ryan B. , Carter Alain J. , Last Robert D. , Clift Sarah
Published: January 2017

A 9-year-old sterilised female domestic short-hair cat was referred with a history of vomiting and anorexia of 3 months’ duration. Biochemistry, full-blood counts, thoracic radiographs, feline pancreatic-specific lipase, abdominal ultrasonography and feline immunodeficiency virus/feline leukaemia virus (FIV/FeLV) SNAP tests had been performed. Mild hypochloraemia and moderate hypokalaemia were evident on initial presentation. Abdominal ultrasonography initially revealed unilateral renal nodules on the left side. These were subjected to fine-needle aspiration and cytological evaluation. A neuroendocrine tumour was suspected, and biopsies via midline coeliotomy were taken to confirm the diagnosis. Initial histopathology diagnosed primary renal carcinomas or neuroendocrine neoplasia; however, the definitive diagnosis became renal paragangliomas after immunohistochemistry and transmission electron microscopy were performed. The cat was regularly monitored with serum biochemistry parameters, blood pressure determinations, thoracic radiographs and subsequent abdominal ultrasonography. Biochemistry, radiography and blood pressures remained normal over a 24-week follow-up period, while subsequent ultrasonography revealed tumour progression in both number and size in both kidneys. Primary neuroendocrine tumours of the kidney are frequently incorrectly diagnosed as other renal tumours such as renal cell carcinoma, mesonephric tumours or undifferentiated carcinomas. This case report highlights the importance of additional testing, including immunohistochemistry and transmission electron microscopy, to obtain a definitive diagnosis of paragangliomas.
Lees met ’n vrye verbeelding
Authors: Louw Salomi
Published: January 2017

No abstract available.
Huldeblyk aan ’n blymoedige gewer
Authors: Human Thys
Published: January 2017

No abstract available.
Infantile Hemangioendothelioma of the Parotid Gland
Authors: Chaubal Rajas , Tavri Om , Sawant Atul , Singh Chitrangada
Published: January 2017

A 4-month-old infant presented with a painless swelling overlying the left angle of mandible. Ultrasound and magnetic resonance imaging (MRI) revealed a large lesion replacing the entire left parotid gland, with multiple enlarged vessels. Homogeneous enhancement of the lesion was seen on the postcontrast MRI scans. Based on the imaging features, a diagnosis of infantile hemangioendothelioma of the parotid gland was offered. This helped in avoiding any further invasive testing.
Continuity of Convolution and SIN Groups
Authors: Pachl Jan , Steprans Juris
Published: January 2017

Let the measure algebra of a topological group G be equipped with the topology of uniform convergence on bounded right uniformly equicontinuous sets of functions. Convolution is separately continuous on the measure algebra, and it is jointly continuous if and only if G has the SIN property. On the larger space LUC(G)*, which includes the measure algebra, convolution is also jointly continuous if and only if the group has the SIN property, but not separately continuous for many non-SIN groups.
Pancake-like and tablet-like distribution functions of energetic electrons in the middle magnetosphere
Authors: Bespalov Peter , Savina Olga
Published: January 2017

Abstract. We propose a simple explanation of the prolonged existence of pancake-like electron velocity distributions in the radiation belts. The pancake-like distribution function is characterized by a longitudinal particle velocity (along the magnetic field) of the order of the thermal velocity of the background plasma. The parameters of the tablet-like distribution function with a characteristic longitudinal particle velocity of the order of 20 Alfvèn velocities are refined. Such distribution functions can occur in the middle magnetosphere near the magnetic equator with appropriate sources of energetic particles. The stability of these distributions is examined. The results agree with known experimental data.
Periodic input of dust over the Eastern Carpathians during the Holocene linked with Saharan desertification and human impact
Authors: Longman Jack , Veres Daniel , Ersek Vasile , Salzmann Ulrich , Hubay Katalin , Bormann Marc , Wennrich Volker , Schäbitz Frank
Published: January 2017

Abstract. Reconstructions of dust flux have been used to produce valuable global records of changes in atmospheric circulation and aridity. These studies have highlighted the importance of atmospheric dust in marine and terrestrial biogeochemistry and nutrient cycling. By investigating a 10 800-year long paleoclimate archive from the Eastern Carpathians (Romania) we present the first peat record of changing dust deposition over the Holocene for the Carpathian-Balkan region. Using qualitative (XRF core scanning) and quantitative (ICP-OES) measurements of lithogenic (Fe, K, Si, Ti) elements, we identify 11 periods of major dust deposition between: 9500–9100, 8400–8100, 7720–7250, 6350–6000, 5450–5050, 4130–3770, 3450–2850, 2100–1450, 800–620, and 60 cal yr BP to present. In addition, we used testate amoeba assemblages preserved within the peat to infer local palaeohydroclimate conditions. Our record highlights several discrepancies between eastern and western European dust depositional records, and the impact of highly complex hydrological regimes in the Carpathian region. After 6100 cal yr BP, we find that the geochemical indicators of dust flux become uncoupled from the local hydrology. This coincides with the appearance of millennial-scale cycles in the dust input and changes in geochemical composition of dust. We suggest this is indicative of a shift in dust provenance from local/regional (likely loess-related) to distal (Saharan) sources which coincide with the end of the African Humid Period and the onset of Saharan desertification.
Regional-scale brine migration along vertical pathways due to CO2 injection – Part 2: a simulated case study in the North German Basin
Authors: Kissinger Alexander , Noack Vera , Knopf Stefan , Konrad Wilfried , Scheer Dirk , Class Holger
Published: January 2017

Abstract. Saltwater intrusion into potential drinking water aquifers due to the injection of CO2 into deep saline aquifers is one of the hazards associated with the geological storage of CO2. Thus, in a site-specific risk assessment, models for predicting the fate of the displaced brine are required. Practical simulation of brine displacement involves decisions regarding the complexity of the model. The choice of an appropriate level of model complexity depends on multiple criteria: the target variable of interest, the relevant physical processes, the computational demand, the availability of data, and their uncertainty. In this study, we set up a regional-scale geological model for a realistic (but not real) on-shore site in the North German Basin with characteristic geological features for that region. A major aim of this work is to identify the relevant parameters controlling saltwater intrusion in a complex structural setting and to test the applicability of different model simplifications. The model that is used to identify relevant parameters fully couples flow in shallow freshwater aquifers and deep saline aquifers. This model also includes variable-density transport of salt and realistically incorporates surface boundary conditions with groundwater recharge. The complexity of this model is then reduced in several steps, by neglecting physical processes (two-phase flow near the injection well, variable-density flow) and by simplifying the complex geometry of the geological model. The results indicate that the initial salt distribution prior to the injection of CO2 is one of the key parameters controlling shallow aquifer salinization. However, determining the initial salt distribution involves large uncertainties in the regional-scale hydrogeological parametrization and requires complex and computationally demanding models (regional-scale variable-density salt transport). In order to evaluate strategies for minimizing leakage into shallow aquifers, other target variables can be considered, such as the volumetric leakage rate into shallow aquifers or the pressure buildup in the injection horizon. Our results show that simplified models, which neglect variable-density salt transport, can reach an acceptable agreement with more complex models.
Have precipitation extremes and annual totals been increasing in the world's dry regions over the last 60 years?
Authors: Sippel Sebastian , Zscheischler Jakob , Heimann Martin , Lange Holger , Mahecha Miguel D. , van Oldenborgh Geert Jan , Otto Friederike E. L. , Reichstein Markus
Published: January 2017

Abstract. Daily precipitation extremes and annual totals have increased in large parts of the global land area over the past decades. These observations are consistent with theoretical considerations of a warming climate. However, until recently these trends have not been shown to consistently affect dry regions over land. A recent study, published by Donat et al. (2016), now identified significant increases in annual-maximum daily extreme precipitation (Rx1d) and annual precipitation totals (PRCPTOT) in dry regions. Here, we revisit the applied methods and explore the sensitivity of changes in precipitation extremes and annual totals to alternative choices of defining a dry region (i.e. in terms of aridity as opposed to precipitation characteristics alone). We find that (a) statistical artifacts introduced by data pre-processing based on a time-invariant reference period lead to an overestimation of the reported trends by up to 40 %, and that (b) the reported trends of globally aggregated extremes and annual totals are highly sensitive to the definition of a dry region of the globe. For example, using the same observational dataset, accounting for the statistical artifacts, and based on different aridity-based dryness definitions, we find a reduction in the positive trend of Rx1d from the originally reported +1.6 % decade−1 to +0.2 to +0.9 % decade−1 (period changes for 1981–2010 averages relative to 1951–1980 are reduced to −1.32 to +0.97 % as opposed to +4.85 % in the original study). If we include additional but less homogenized data to cover larger regions, the global trend increases slightly (Rx1d: +0.4 to +1.1 % decade−1), and in this case we can indeed confirm (partly) significant increases in Rx1d. However, these globally aggregated estimates remain uncertain as considerable gaps in long-term observations in the Earth's arid and semi-arid regions remain. In summary, adequate data pre-processing and accounting for uncertainties regarding the definition of dryness are crucial to the quantification of spatially aggregated trends in precipitation extremes in the world's dry regions. In view of the high relevance of the question to many potentially affected stakeholders, we call for a well-reflected choice of specific data processing methods and the inclusion of alternative dryness definitions to guarantee that communicated results related to climate change be robust.
Lidar-based wake tracking for closed-loop wind farm control
Authors: Raach Steffen , Schlipf David , Cheng Po Wen
Published: January 2017

Abstract. This work presents two advancements towards closed-loop wake redirecting of a wind turbine. First, a model-based wake tracking approach is presented which uses a nacelle-based lidar system facing downwind to obtain information about the wake. The method uses a reduced order wake model to track the wake. The tracking is demonstrated with lidar measurement data from an offshore campaign and with simulated lidar data from a SOWFA simulation. Second, a controller for closed-loop wake steering is presented. It uses the wake tracking information to set the yaw actuator of the wind turbine to redirect the wake to a desired position. Altogether, the two approaches enable a closed-loop wake redirection.
Paraísos fiscales, riqueza offshore y evasión fiscal. Una estimación para España (1980-2013)
Authors: Peramo Juan Carlos
Published: January 2017

La problemática de los paraísos fiscales es un fenómeno cada vez más relevante en el funcionamiento de la economía mundial y está estrechamente relacionado con las crisis financieras y el aumento de la desigualdad. No obstante, existe escasa literatura que cuantifique el problema. El propósito de este trabajo es el de elaborar una propuesta metodológica que sirva de base para la ampliación del estudio de este tema, tan poco estudiado y del que aún se desconoce demasiado, pese a su importancia y presencia en la actualidad. Para ello se recopila la terminología empleada en la literatura relacionada con los paraísos fiscales y la riqueza offshore así como la metodología empleada en algunas estimaciones que cuantifican el problema. A partir de dicha recopilación se propone una estimación para España en el periodo 1980-2013, de la riqueza radicada en paraísos fiscales (offshore) y su repercusión sobre los ingresos fiscales del país, empleada por Zucman para el caso de Francia. Los resultados arrojan un incremento de la riqueza offshore durante todo el periodo y una pérdida de ingresos tributarios acumulados para el país de 116.000 millones de euros.
Diagnóstico de la cooperación internacional para el desarrollo mexicana y su andamiaje institucional actual
Authors: Pérez Jorge , Ayala Citlali
Published: January 2017

Ante el proceso de tránsito de los Objetivos de Desarrollo del Milenio hacia los Objetivos de Desarrollo Sostenible a partir de 2016, y ante una mayor formalización de la cooperación internacional en México a partir de la creación de la Agencia Mexicana de Cooperación Internacional para el Desarrollo en 2011, es pertinente conocer la percepción actual de la cooperación internacional en el país. Así, el presente artículo presenta los principales hallazgos del diagnóstico realizado en 2014 entorno a la opinión de líderes y expertos sobre las tendencias observadas sobre los principales retos e implicaciones para México como país receptor, donante o dual y para su política exterior, pero sobre todo para una mejor ejecución y participación en la Agenda 2030.
FATORES DE RISCO DOS DIAGNÓSTICOS DE ENFERMAGEM DO DOMÍNIO SEGURANÇA/PROTEÇÃO: REVISÃO INTEGRATIVA
Authors: Moura Laísla Alves , Araújo Jéssica Naiara de Medeiros , Pitombeira Danielly Oliveira , Fernandes Ana Paula Nunes de Lima , Botarelli Fabiane Rocha , Vitor Allyne Fortes
Published: January 2017

Revisão integrativa com o objetivo de sintetizar as evidências disponíveis na literatura acerca dos fatores de risco dos diagnósticos de enfermagem do Domínio Segurança/Proteção e eventos adversos correlacionados em pacientes hospitalizados. Realizada em fevereiro de 2015 mediante busca nas bases de dados Cumulative Index to Nursing and Allied Health, Literatura Latino-americana e do Caribe em Ciências da Saúde, National Library of Medicine National Institutes of Health, Scientific Electronic Library Online e Scopus, que resultou em 19 estudos. Os fatores de risco mais prevalentes foram: tempo de internação prolongado, idade avançada e sobrecarga dos profissionais de enfermagem. A categoria Risco de lesão apresentou o maior número de fatores de risco sem correspondência NANDA Internacional (NANDA-I), em contraste, a categoria Risco de quedas apresentou o maior número de equivalentes. Deste modo, a presença de fatores de risco citados na literatura sem inclusão na NANDA-I denota necessidade de estudos mais aprofundados na temática.
PERCEPÇÃO DE USUÁRIAS ACERCA DO EXAME DE DETECÇÃO PRECOCE DO CÂNCER DE COLO UTERINO
Authors: Neves Karla Torres de Queiroz , Oliveira Antonio Wendel Nogueira , Galvão Thatylla Rayssa Alves Ferreira , Ferreira Ilziane Tomaz , Mangane Elisa Matias , De Souza Leilane Barbosa
Published: January 2017

Objetivou-se descrever a percepção de usuárias acerca do exame de detecção precoce do câncer de colo uterino. Trata-se de pesquisa descritiva desenvolvida em cinco Unidades Básicas de Saúde de um município do interior do estado do Ceará, de janeiro a abril de 2015. Foram entrevistadas 15 usuárias que realizaram exame ginecológico. Os resultados foram submetidos à análise de conteúdo e classificados em categorias: significado do exame, frequência de realização, sentimentos vivenciados e motivos para recusa. As entrevistadas conhecem o objetivo do exame e o realizam periodicamente. A realização por profissional de saúde do sexo masculino pode constituir motivo de recusa do exame. A adesão é influenciada pela relação de confiança com o profissional. Conclui-se que as entrevistadas percebem o exame como importante e que eventuais motivos para a recusa podem ser evitados por meio do fortalecimento de vínculos no serviço.
A FAMÍLIA NO CUIDADO DE ENFERMAGEM À CRIANÇA: REVISÃO INTEGRATIVA
Authors: Estevão Aline Rigo , Teodoro Fernanda Cassanho , Ribas Pinto Magda Nanuck de Godoy , Freire Márcia Helena De Souza , Mazza Verônica De Azevedo
Published: January 2017

Este estudo objetivou investigar a produção científica sobre o cuidado de enfermagem à criança com enfoque na família. Trata-se de uma revisão integrativa realizada em cinco bases de dados, no mês de junho de 2016.Os critérios de inclusão foram: publicações científicas divulgadas entre 2010 a 2015, no formato de artigo científico, nos idiomas inglês, português e espanhol, e de livre acesso. A amostra foi composta por 16 artigos, dos quais emergiram duas categorias temáticas: reconhecimento da unidade familiar; limitações para o cuidado à criança com enfoque na família.O cuidado à criança com enfoque na família valoriza a participação dos familiares na sua execução, favorece o vínculo profissional-família com reconhecimento do cuidado contínuo, e evidencia as peculiaridades de cada família.
PRECAUÇÕES ESPECÍFICAS PARA EVITAR A TRANSMISSÃO DE MICRORGANISMOS: DESENVOLVIMENTO E VALIDAÇÃO DE ROTEIRO EDUCACIONAL
Authors: Juskevicius Luize Fábrega , Padoveze Maria Clara
Published: January 2017

O objetivo deste estudo foi desenvolver e validar o conteúdo do roteiro educativo para indivíduos em precauções específicas para evitar a transmissão de microrganismos. Estudo metodológico, desenvolvido em três fases,em dois hospitais (público e privado) na cidade de São Paulo, no período de maio a julho de 2015, utilizando o referencial teórico de Vulnerabilidade. Na primeira fase, aplicou-se questionário para captação das percepções dos indivíduos adultos sobre precauções específicas. Na segunda fase, elaborou-se o roteiro educativo. Na terceira fase, foi submetido a especialistas em precauções específicas e vulnerabilidade para validação de conteúdo. Foram entrevistados39 indivíduos em média sete dias após a instituição das precauções específicas, 32 (82%) em precaução para contato. O roteiro foi desenvolvido para proporcionar maior conhecimento nos aspectos usualmente negligenciados pelos profissionais e estimular o cuidado centrado no indivíduo. Todos os itens tiveram um índice de validade de conteúdo acima de 75%. O roteiro apresenta potencial para instrumentalizar profissionais na elaboração de ações educativas para pacientes adultos em precauções específicas.
RELAXAMENTO COM IMAGEM GUIADA E PRESENÇA DE DEPRESSÃO EM PACIENTES COM CÂNCER DURANTE QUIMIOTERAPIA
Authors: Nicolussi Adriana Cristina , Sawada Namie Okino , Cardozo Fernanda Mara Coelho , Paula Juliana Maria de
Published: January 2017

O objetivo foi avaliar o efeito do Relaxamento com Imagem Guiada sobre a presença de depressão em pacientes com câncer durante quimioterapia. Estudo quase-experimental, realizado em duas centrais de quimioterapia, entre 2009-2011. O grupo intervenção foi submetido ao relaxamento com imagem guiada; os grupos intervenção (n=73) e controle (n=79) responderam ao Inventário de Depressão de Beck. Os cânceres mais frequentes foram: mama, intestinal e gástrico. Diferenças estatisticamente significantes (p<0,05) entre os grupos (Teste de Mann-Whitney, p=0,0158) e entre os tempos (Teste de Wilcoxon, p=0,0401) foram encontradas, com o grupo intervenção apresentando mais pacientes “sem depressão” do que o controle. De acordo com Inventário de Depressão de Beck, os resultados evidenciaram que a intervenção ajudou a reduzir a presença de depressão nestes pacientes. Espera-se que a prática desta intervenção seja divulgada e difundida no trabalho do dia-a-dia do enfermeiro, para que, em um futuro próximo, os pacientes oncológicos possam se beneficiar com estas terapias.
Corporate Disclosures and Financial Performance of Selected Indian Manufacturing and Non- Manufacturing Companies
Authors: Sahore Nidhi Sharma , Verma Anshul
Published: January 2017

Disclosures play a pivotal role in addressing the issues related to information asymmetry and agency costs of firms. Voluntary disclosures are those disclosures which are beyond the compulsory ones and are communicated portraying a better image of the company and its prospects in front of its investors. Therefore this study intends to extend various aspects of corporate disclosure practices, mainly voluntary disclosures of selected Indian companies. Under contract theory of economics, information asymmetry leads to superfluous decisions because of information gap between the parties. It is also important to assess the possible economic consequence of voluntary disclosures i.e. the incentive by way of enhanced firm performance. The results of the study obtained through correlation and regression approach are very encouraging and are evident of stock returns responding to corporate voluntary disclosures, financial as well as non- financial, particularly in the recent years. The effect of increased disclosures on stock prices is of possible interest to investing community and stakeholders at large including the policy makers and regulators. It is not just about the level of disclosures but also the type of disclosures e.g. non-financial disclosure like forward looking, social, and environmental which play an important role in enunciating the association between the two variables. The paper sufficiently contributes towards literature on voluntary disclosures. Its major contribution is focused towards economic consequences of disclosures by way of better stock returns and implications for Indian stock market regulator to assess the impact of its policy on manufacturing and non-manufacturing companies listed in CNX 100 index of National Stock Exchange of India.
Reviewer Acknowledgements for Journal of Mathematics Research, Vol. 9, No. 1
Authors: Wang Sophia
Published: January 2017

Journal of Mathematics Research wishes to acknowledge the following individuals for their assistance with peer review of manuscripts for this issue. Their help and contributions in maintaining the quality of the journal is greatly appreciated.Many authors, regardless of whether Journal of Mathematics Research publishes their work, appreciate the helpful feedback provided by the reviewers.Reviewers for Volume 9, Number 1   Gabriela Ciuperca, University Lyon 1, FranceGane Sam Lo, Universite Gaston Berger de Saint-Louis, SenegalGuy Biyogmam, Southwestern Oklahoma State University, USAKong Liang, University of Illinois at Springfield, USAKuldeep Narain Mathur, University Utara Malaysia, MalaysiaLuca Di Persio, University of Verona, ItalyMarek Brabec, Academy of Sciences of the Czech Republic, Czech RepublicMaria Alessandra Ragusa, University of Catania, ItalyOmur Deveci, Kafkas University, TurkeyPaul J. Udoh, University of Uyo., NigeriaPengcheng Xiao, University of Evansville, USAPhilip Philipoff, Bulgarian Academy of Sciences, BulgariaRovshan Bandaliyev, National Academy of Sciences of Azerbaijan, AzerbaijanSanjib Kumar Datta, University of Kalyani, IndiaSergiy Koshkin, University of Houston Downtown, USAVishnu Narayan Mishra, Sardar Vallabhbhai National Institute of Technology, IndiaWaleed Al-Rawashdeh, Montana Tech, USAYulei Pang, Southern CT State University, USA       Sophia WangOn behalf of,The Editorial Board of Journal of Mathematics ResearchCanadian Center of Science and Education
A Review of Shahnameh from the Perspective of Daqiqi Tusi Murder in Iran
Authors: Birang Mohamadreza , Tajlil Jalil
Published: January 2017

In Shahnemaeh, we cannot see any express statement about Daqiqi Tusi murder. Ferdowsi's narrative about the murder of Daqiqi is such vague and unclear that has attracted researchers’ attention. Based on Ferdowsi’s opinion, initially, it seems the incentive of Daqiqi murder to be a dramatic process than being a predetermined approach. In another hand, Shahnameh points to the Daqiqi’s bad tempered character. In this regard, Daqiqi murder that is done by his bondservant might have got an interpersonal incentive. The main purpose of the paper is to study the incentive of Daqiqi Tusi murder in Shahnameh context while comparing it with other evidence like Daqiqi’s opposition to a political governing system and appearance of this opposition in his poems. The method used in the study is a descriptive-analytical approach. We conclude that closed tips about the incentive of Daqiqi Tusi murder pointed out in Shahnameh might be misleading indications; thus, further research in this area is highly needed.
Over de (on)mogelijkheid van de ontbindende voorwaarde onder de Wwz
Authors: van Eck Marian
Published: January 2017

Over de (on)mogelijkheid van de ontbindende voorwaarde onder de Wwz

De ontbindende voorwaarde lijkt niet meer te passen binnen het Wwz stelsel
Het ontslag op staande voet in cijfers
Authors: Beukhof Marit , Rietveld Rachel
Published: January 2017

Het ontslag op staande voet in cijfers

In dit artikel geven de auteurs inzicht in hoe vaak vernietiging van een ontslag op staande voet is verzocht. Hierbij wordt ook ingegaan op andere cijfers die verband houden met een ontslag wegens een dringende reden, zoals de hoogte van verschillende vergoedingen. De auteurs beginnen met een korte uiteenzetting van de mogelijke gerechtelijke procedures na een ontslag op staande voet.
e-Health and Primary Care in Brazil: concepts, correlations and trends
Authors: Landsberg Gustavo de Araújo Porto
Published: January 2017

Objetive: This paper aims to discuss e-Health and Primary Care concepts and correlations, considering current context of healthcare and health information technology in Brazil. Methods: Conceptual literature regarding to Primary Care and health information technology was selected and discussed. Results: Brazilian public health system has delivered cost-effective primary care over the last 20 years and recently a similar movement is being observed at private sector. Additionally, there is a expanding adoption of health information technology, which resources can be use to develop all core attributes of Primary Care. Conclusions: The e-Health utilization in Primary Care has potencial to improve health and reduce costs. A clear specific national policy, broad discussion over current regulation and a closer relationship between health professionals and information technology developers are needed to offer cost-effective e-Health aligned to Primary Care atributes.
Fatores de risco e proteção de doenças crônicas em adultos: estudo de base populacional em uma cidade de médio porte no sul do Brasil
Authors: Baumgartel Carine , Onofrei Mihaela , Grillo Luciane Peter , Lacerda Leo Lynce Valle , Mezadri Tatiana
Published: January 2017

Introdução: As doenças crônicas constituem sério problema de saúde pública, caracterizadas por uma etiologia incerta, múltiplos fatores de risco, longos períodos de latência, curso prolongado, origem não infecciosa e associadas a deficiências e incapacidades funcionais. Objetivos: Determinar a prevalência e a distribuição dos principais fatores de risco e proteção para doenças crônicas não transmissíveis na população adulta, estratificada por sexo e faixa etária no município de Itajaí, SC. Métodos: A amostra foi constituída por 432 adultos, entre julho de 2013 e junho de 2014. Aplicou-se um questionário, composto por fatores de risco e proteção para doenças crônicas não transmissíveis. Resultados: A amostra foi composta por 48,4% do sexo masculino e 51,6% do sexo feminino, predominando a faixa etária de 20 a 39 anos (56,2%), estado civil casado e/ou união estável (70,4%) e com nível de escolaridade de até 11 anos (46,3%). Em relação aos fatores de risco, quando comparados com os dados nacional e estadual, os sexos masculino e feminino apresentaram prevalências significativamente superiores, respectivamente, para: tabagismo (22,5%; 17,0%); consumo de refrigerantes ou suco artificial (45,5%; 34,5%), leite integral (72,3%; 70,9%), carne com gordura (58,4%; 49,3%), obesidade (24,2%; 21,3%) e autoavaliação negativa de saúde (19,1%; 30,9%). Quanto aos fatores de proteção verificaram-se valores superiores e significativos para consumo regular de frutas e hortaliças (51,2%; 70,4%) e inferiores para o consumo recomendado de frutas e hortaliças (9,6%; 16,1%), feijão (46,9%; 40,4%) e atividade física (30,1%; 39,0%). Conclusão: Os resultados apontaram que as maiores prevalências de fatores de risco estão relacionadas à tríade ingestão alimentar inadequada, inatividade física e tabagismo, destacando-se as elevadas proporções de autoavaliação negativa da saúde.
Accelerated Solvent Extraction of Insecticides from Rice Hulls, Rice Bran, and Polished Rice Grains
Authors: Teló Gustavo Mack , Senseman Scott Allen , Marchesan Enio , Camargo Edinalvo Rabaioli , Carson Katherine
Published: January 2017

Analysis of pesticide residues in irrigated rice grains is important for food security. In this study, we analyzed accelerated solvent extraction (ASE) conditions for the extraction of thiamethoxam and chlorantraniliprole insecticides from rice hulls, rice bran, and polished rice grains. Several variables, including extraction solvent, extraction temperature, extraction pressure, cell size, static extraction time, and sample concentration, were investigated. The average recoveries of the three matrixes were between 89.7 and 109.7% at the fortification level of 0.75 mg/kg. The optimum ASE operating conditions were acetonitrile (100%) as extraction solvent, extraction temperature of 75°C for rice hulls and 100°C for rice bran and polished rice grains, extraction cell pressure of 10.3 MPa, 22 mL cell size, and two extraction cycles. The total extraction time was approximately 25 min. The extracted volume was evaporated to dryness and the residues were redissolved in 2 mL acetonitrile after 1 min of vortex-shaking. Thiamethoxam and chlorantraniliprole were analyzed by ultra-HPLC with tandem MS. In conclusion, ASE in rice hulls, rice bran, and polished rice grains offers the possibility of a fast and simple method for obtaining a quantitative extraction of the studied pesticides.
Label-Free Classification of a Nasopharyngeal Carcinoma Tissue Test at Different Stages Based on Raman Spectroscopy
Authors: Liu Mingyu , Lin Jinyong , Qiu Sufang , Wu Weilin , Liu Gaoqiang , Li Yan , Gong Haiming , Chen Rong , Chen Guannan
Published: January 2017

Raman spectroscopy (RS) of nasopharyngeal carcinoma (NPC) tissue provides substantial biomolecular information and various biomedicine features for tissue at different stages of cancer development. This study suggested an automatic and quick method for the classification of Raman spectra at different stages of NPC by multivariate statistical analysis. During RS measurement, Raman spectra were acquired from all NPC tissues in two groups of samples: 30 early-stage NPC patients (stages I and II) and 46 advanced-stage NPC patients (stages III and IV). In addition, a tentative diagnostic algorithm comprising principal components analysis and support vector machine was used to effectively classify multivariate data from the Raman spectra to yield sensitivities (70%; 21 of 30 samples) and specificities (91%; 42 of 46 samples) by the leave-one-out cross-validation method. Meaningful chemical compositions in the classification process were then deduced by analyzing the classified mathematical model. This beneficial work provides a great potential clinical method for the automatic classification of NPC stages and the speculation of the chemical compositions for NPC staging.
Chromatographic Determination of Cyclopentolate Hydrochloride and Phenylephrine Hydrochloride in the Presence of Their Potential Degradation Products
Authors: Rezk Mamdouh R , Fayed Ahmed S , Marzouk Hoda M , Abbas Samah S
Published: January 2017

Two sensitive, selective, and precise stability-indicating methods have been developed for the simultaneousdetermination of the active pharmaceutical ingredients cyclopentolate hydrochloride (CLO) and phenylephrine hydrochloride (PHE) in their pure forms and in the presence of their degradation products. The methods were applied for the determination of CLO and PHE in a pharmaceutical formulation. Method A was based on isocratic elution HPLC determination. Separation was achieved using a Waters Spherisorb ODS2 C18 analytical column (5 μm particle size) and a mobile phase of 0.1% heptane-1-sulphonic acid sodium salt in methanol–water (80 + 20, v/v). The flow rate was 1.0 mL/min and detection was performed at 210 nm. Method B was an HPTLC- densitometric method using HPTLC silica gel 60 F254 plates and an optimized mobile phase of ethyl acetate–methanol–ammonia (8 + 2 + 0.1, v/v/v). The separated spots were densitometrically scanned at 210 nm. Polynomial equations were used for regression. The developed methods are suitable for the determination of CLO and PHE in their binary mixture and in the presence of their corresponding degradation products. The two methods were validated in compliance with International Conference on Harmonization guidelines and successfully applied for the determination of CLO and PHE as synthetically prepared in laboratory mixtures and in the presence of their possible degradation products. CLO alkaline degradation products were stated as potential impurities in BritishPharmacopoeia. The degradation products were separated and identified by mass spectra. Postulation of a PHE oxidative degradation pathway was suggested. The obtained resultswere statistically analyzed and compared with those obtained by applying the official methods for both drugs.
Computation-Assisted Molecularly Imprinted Polymer Synthesis for Extraction of Naltrexone from Urine Using Experimental Design and Determination by UPLC–DAD
Authors: Rahmani Mahdiyeh Ebrahimi , Ansari Mehdi , Nateghi Mohammadreza , Kazemipour Maryam
Published: January 2017

To design a molecularly imprinted polymer (MIP) for naltrexone, calculations were performed using Gaussian 03 software,and the interaction energy (ΔE) of template–monomer complexes was estimated using the density functional theory method with the B3LYP function and 6-311G (d) basis set. The effect of different solvents in the polymerization process was studied using the polarizable continuum model. It was shown that five molecules of methacrylic acid gave the largestΔE with tetrahydrofuran as the polymerization solvent.Effective factors of the removal efficiency of naltrexone by the MIP were selected using a central composite design, and thereafter, the optimization of significant factors was performed by response surface methodology. The results predicted through these models showed good agreement with experimental values. The adsorption amount, selectivity distribution coefficient, and selectivity coefficient were found to be 11.60 mg/g, 35.31, and 2.27, respectively. Experiments of naltrexone adsorption onto the MIP were in accordance with the first-orderand Langmuir-Freundlich adsorption models. By applying the data to the Scatchard equation, the KD and Qmax were determined as 526.31 mg/L and 19.47 mg/g, respectively.