bluuebunny/crossref_metadata_2025_split huggingface dataset:
Bockstein homomorphisms for Hochschild cohomology of group algebras and of block algebras of finite groups
Authors: Todea Constantin-Cosmin 
Published: July 2016

Abstract
We give an explicit approach for Bockstein homomorphisms of the Hochschild cohomology of a group algebra and of a block algebra of a finite group and we show some properties. To give explicit definitions for these maps we use an additive decomposition and a product formula for the Hochschild cohomology of group algebras given by Siegel and Witherspoon in 1999. For an algebraically closed field k of characteristic p and a finite group G we prove an additive decomposition and a product formula for the cohomology algebra of a defect group of a block ideal of kG with coefficients in the source algebra of this block, and we define similar Bockstein homomorphisms.
Intestinal parasites of unisexual and bisexual lizards Darevskia spp. (Lacertidae) from Northeastern Anatolia
Authors: Roca V. , Jorge F. , Ilgaz Ç. , Kumlutaş Y. , Durmuş S. Hakan , Carretero M. A. 
Published: July 2016

Summary
Four bisexual and two unisexual species of the lizard genus Darevskia from northeastern Anatolia were searched for intestinal parasites in adult specimens. One cestode, Nematotaenia tarentolae, and two nematode species, Spauligodon saxicolae and Strongyloides darevskyi, were found, the latest identified as a Darevskia specialist. No major differences between host species were recorded. The very low infection rates and diversity result in depauperate helminth communities for all these lacertid lizards being the lowest among the Palaearctic saurians. Patterns of these helminth communities are compared with those observed in other lacertid lizards from Anatolia and Europe.
Effect of muramyl dipeptide and alum adjuvants on immunization with Filarial multi antigen peptide vaccine in mice model
Authors: Christiana I. , Aparnaa R. , Rohit R. , Rao D. Nageswara , Kaliraj P. 
Published: July 2016

Summary
Filarial thioredoxin and transglutaminase are enzymes that are secreted throughout the lifecycle of the parasites which are mandatory for the survival of the parasite. They are reported to be promising vaccine candidates, yet the limitation factors of these proteins to be developed as vaccines is their homology they share with the host proteins. Hence immunodominant epitopes from these proteins were constructed as peptides and immunised in mice model with Muramyl dipeptide (MDP) as adjuvant. Immunodominant epitopic portions from Filarial thioredoxin and transglutaminase which are non-homologous with host proteins were constructed as Multi Antigen Peptide (MAP) and assembled in an inert lysine core. The synthesised MAP was immunised with MDP as adjuvant in Balb/c mice model, humoral and cellular immune response were studied. Antibody titre levels for TT MAP with MDP was in par with alum as adjuvant in mice models. T cell responses of TT MAP with MDP showed a balanced TH1/TH2 response. The TH1 cytokines namely IL-2 and IFN-ɤ were also higher in TT MAP immunised groups with MDP as adjuvant whereas alum immunised groups was TH2 biased. TT MAP admixed with MDP as adjuvant proves to be safe in mice model. Further vaccination studies are underway in permissive animal models to determine the role of TT MAP with MDP as adjuvant in protective immunity against W. bancrofti and B. malayi infections.
Adolescent health in Asia: insights from India
Authors: Basker Mona M. 
Published: July 2016

Abstract
Adolescents living in the Indian subcontinent form a significant proportion of the general population. India is home to 236 million adolescents, who make up one-fifth of the total population of India. Adolescent health is gradually considered an important issue by the government of India. Awareness is increasing about adolescent needs. Health care professionals in particular are becoming more interested in the specific needs of adolescent age. Adolescent medicine as a subspecialty of pediatrics has also gained importance gradually over the last decade. In a hospital setting, adolescent-specific needs are met, albeit not in a uniform manner in all the health centers. After having been trained in adolescent medicine in India and abroad, I present this paper as a bird’s eye view of the practice of adolescent health and medicine in India.
Existence of Synergistic Effects During Co-pyrolysis of Petroleum Coke and Wood Pellet
Authors: Toshniwal Pratik , Srivastava Vimal Chandra 
Published: July 2016

Abstract
This study attempts to comprehend the thermal degradation behaviour of different blends of petroleum coke (denoted as PC) and wood pellets (denoted as WP) (1:0, 3:1, 1:1. 1:3 and 0:1) using thermogravimetric (denoted as TG) analysis under N2 atmosphere with constant particle size range of 500–850 µm and at constant heating rate of 5 °C/min. TG experiments indicated that it is difficult to predict the pyrolysis characteristics of their blends accurately based on individual components and blending ratios. The non-additive behaviour of TG curves of the blends indicates presence of synergistic effects which could further promote the volatile yields during the co-pyrolysis process. The mixed model including homogeneous reaction model (denoted as HRM) and shrinking core model (denoted as SCM) models were used to predict the variation in kinetic parameters (activation energy and pre-exponential factor) with different blend ratios. The most obvious synergistic effects were observed when the blending ratio was 25 % on account of maximum mass loss rate from the differential thermogravimetry (denoted as DTG), maximum deviation based on root mean square (denoted as RMS) value as well as divergence in the differential thermogravimetric analysis (denoted as DTA) curve.
Dynamics of Two-Phase Dusty Fluid Flow Along a Wavy Surface
Authors: Siddiqa Sadia , Abrar M. N. , Hossain M. A. , Awais M. 
Published: July 2016

Abstract
This article provides the computational results of laminar, boundary layer flow of a dilute gas-particle mixture over a semi-infinite vertical wavy surface. The governing parabolic partial differential equations are switched into another frame of reference by using primitive variable formulations (PVF). Two-point finite difference scheme is applied to acquire the unknown quantities of the carrier and the particle phase. The results are obtained for the cases: (i) water–metal mixture and (ii) air–metal mixture and are displayed in the form of wall shear stress, wall heat transfer, velocity profile, temperature profile, streamlines and isotherms for different emerging physical parameters. The solutions are compared, as well, with the available data in the literature. Quantitative comparison shows good compatibility between the present and the previous results. For the dusty fluid model it is found that the rate of heat transfer reduces considerably when the amplitude of the sinusoidal waveform increases from 0 to 0.5.
Transient Heat and Mass Transfer of Micropolar Fluid between Porous Vertical Channel with Boundary Conditions of Third Kind
Authors: Doh D. H. , Muthtamilselvan M. , Prakash D. 
Published: July 2016

Abstract
An investigation of heat and mass transfer characteristics of unsteady free convective flow of viscous incompressible micropolar fluid between the vertical porous plates in the presence of thermal radiation is carried out in the present work. The fluid is considered to be grey, absorbing–emitting but non scattering medium and the Cogley–Vincent–Gilles formulation is adopted to simulate the radiation component of heat transfer. The resulting system of equations is solved numerically with Crank–Nicolson implicit finite difference method. The effects of various physical parameters such as transient, micropolar parameter, radiation parameter, Reynolds number, Schmidt number, heat and mass transfer Biot numbers on the velocity, temperature and concentration field are discussed graphically.
Traveling Waves of DDEs with Rational Nonlinearity
Authors: Aslan İsmail 
Published: July 2016

Abstract
It has been found that the dynamical behavior of many complex physical systems can be properly described by nonlinear DDEs. However, in the related literature, research focusing on such equations with rational nonlinearity is rare. Hence, the present study makes an attempt to fill the existing gap. To this end, we consider two distinct DDEs with rational nonlinearity. We observed that the model equations assume three kinds of traveling wave solutions; hyperbolic, trigonometric and rational including kink-type solitary waves and singular periodic solutions. Our discussion is based on the auxiliary equation method.
Performance Evaluation and Nonlinear Mitigation through DQPSK Modulation in 32 × 40 Gbps Long-Haul DWDM Systems
Authors: Sharan Lucky , Agrawal Vaibhav M. , Chaubey V. K. 
Published: July 2016

AbstractHigher spectral efficiency and greater data rate per channel are the most cost-effective strategies to meet the exponential demand of data traffic in the optical core network. Multilevel modulation formats being spectrally efficient enhance the transmission capacity by coding information in the amplitude, phase, polarization or a combination of all. This paper presents the design architecture of a 32-channel dense wavelength division multiplexed (DWDM) system, where each channel operates with multi-level phase modulation formats at 40 Gbps. The proposed design has been simulated for 50 GHz channel spacing to numerically compute the performance of both differential phase-shift keying (DPSK) and differential quadrature phase-shift keying (DQPSK) modulation formats in such high-speed DWDM system. The transmission link is analyzed with perfect dispersion compensation and also with under-compensation scheme. The link performance in terms of quality factor (
Late pregnancy – a clue to prolonging life?
Authors: Ferraz Tiago , Matias Alexandra 
Published: July 2016

Abstract
The relation between fertility and longevity has always been a subject of study and controversy. Indeed, life expectancy extension is found to be tied to late births. This conclusion can be drawn from social-observational studies like the Long Life Family Study in New England and the New England Centenarian Study on which was found that women whose last birth was after 40 years of age are more likely to live longer. Recently, a group in Israel published a review on animal and human studies that shed some understanding on the cellular mechanisms behind the association between pregnancy and tissue regeneration and repair. These studies shed some understanding to draw biological plausibility on the association between late pregnancy and life expectancy.
Population size and artificial waterhole use by striped hyenas in the Dana Biosphere Reserve, Jordan
Authors: Attum Omar , Rosenbarger Dasynda , Al awaji Malik , Kramer Andrew , Eid Ehab 
Published: July 2016

Abstract
Striped hyenas have a widespread distribution in arid and semi-arid areas of Africa and Asia. However, very little is known about their population status or ecology. We used camera traps to estimate the population size and waterhole use patterns of striped hyenas visiting artificial waterholes in the Dana Biosphere Reserve, Jordan. The population size of hyenas at waterholes was estimated, using capture-recapture (identified from unique stripe patterns) method, to be nine animals in 2010 and 10 animals in 2012. Waterhole visits occurred almost entirely at night, with monthly visitation rates increasing in the hotter summer months and as the duration from the last rainfall increased. In conclusion, our results suggest that the Dana Biosphere Reserve provides safe drinking opportunities for a small population of striped hyenas and the use of these permanent artificial waterholes increases in the late summer months.
Conservation Treatment of Samuel Holland’s Map of St John’s Island, 1765
Authors: Angus Lucy Sarah , Vervoorst Jürgen 
Published: July 2016

Abstract
Historically, conservation of maps included the application of silk facings, heavy cloth backings and use of inappropriate adhesives. This combination of papers, linings and adhesives often causes undulations, tenting and stiffness, hindering their use. Furthermore, silk yellows over time, which compromises the visual interpretation. The National Archives UK faced these problems when preparing Samuel Holland’s 1765 3×4 m map of St John’s Island for display. This paper outlines the complex conservation treatment of a large scale paper object, the creative and innovative techniques developed and the challenges of preparing such an object for display. All products from previous repairs in 1973 were removed using aqueous treatments, the distorted map was mended and realigned and in a major undertaking this large scale object was lined, using up to date techniques. This required building a bridge and a platform and forming a team of 12 colleagues to accomplish the complex and challenging multi-layered lining. A better understanding of treatments and materials available today enabled a successful conservation treatment, which left the map more accessible, visually engaging and flexible for the future, whilst changing protocols of future treatment of maps at The National Archives with application for the wider conservation community.
Quasi-Periodically Driven Quantum Systems
Authors: Verdeny Albert , Puig Joaquim , Mintert Florian 
Published: July 2016

Abstract
Floquet theory provides rigorous foundations for the theory of periodically driven quantum systems. In the case of non-periodic driving, however, the situation is not so well understood. Here, we provide a critical review of the theoretical framework developed for quasi-periodically driven quantum systems. Although the theoretical footing is still under development, we argue that quasi-periodically driven quantum systems can be treated with generalisations of Floquet theory in suitable parameter regimes. Moreover, we provide a generalisation of the Floquet-Magnus expansion and argue that quasi-periodic driving offers a promising route for quantum simulations.
The evaluation of the synergistic effect of 3-(2,4-dihydroxyphenyl)propionic acid and l-ascorbic acid on tyrosinase inhibition
Authors: Chen Xinyang , Haniu Aya , Kashiwagi Takehiro , Watanabe Hiroyuki , Watanabe Takashi , Okamoto Yoshino , Suzuki Masanobu , Kim Chul-Sa 
Published: July 2016

Abstract
3-(2,4-Dihydroxyphenyl)propionic acid (DDPA) and l-ascorbic acid (vitamin C) show tyrosinase inhibition activity. A synergistic effect on tyrosinase inhibition was observed when the two compounds were mixed. The effect significantly decreased the IC50 value of both compounds.
Recursos lingüísticos visuales en las ciencias naturales / Linguistics visual resources in the natural sciences
Authors: Gutiérrez Sánchez María Constanza Lidia 
Published: July 2016

El uso de las tecnologías de la información y la comunicación (TIC`S), han propiciado que los recursos lingüísticos visuales en educación sean diversos y versátiles, haciendo de éstos una herramienta indispensable en el salón de clases, auditorio escolar, etcétera. Dentro de estos recursos se encuentran las Infografías ya que, de acuerdo a algunos investigadores, permiten la apropiación del conocimiento mediante el procesamiento, organización y priorización de nueva información al tiempo que clarifican su pensamiento (Jonassen, 2000), por lo que se consideró, que son un medio que puede coadyuvar a potencializar el aprendizaje de las ciencias naturales en los alumnos, y a su vez éstos sean capaces de enseñar a otros. El universo de estudio de esta investigación son los estudiantes del tercer año matutino de la Preparatoria Licenciado Benito Juárez García de la Benemérita Universidad Autónoma de Puebla inscritos en el área de las ciencias naturales y de la salud, del ciclo escolar 2014-2015, haciendo un comparativo transversal con un grupo piloto y otro donde no se utilizo el recurso. Más adelante, se muestran los resultados. Para medir y evaluar su alcance, se utilizaron dos instrumentos un cuestionario donde los alumnos de tercero del grupo piloto se autoevalúan y una encuesta aplicada a los estudiantes de segundo año de la misma preparatoria que fueron asesorados por éstos. Las conclusiones a las que se llega después de analizar los resultados, muestra el potencial que tiene en el proceso de enseñanza aprendizaje de diversos temas de las ciencias naturales y de la salud, siempre y cuando sean bien trabajadas.
Medición de hormonas tiroideas y cortisol en caballos mediante un analizador de inmunoensayo automatizado
Authors: Suárez-Esquivel Marcela , Castro-Ramírez Laura 
Published: July 2016

A pesar de que las enfermedades tiroideas son poco comunes en equinos, es importante contar con un intervalo de referencia para hormonas tiroideas en cualquier laboratorio de endocrinología veterinaria. Asimismo, la medición de cortisol y hormonas tiroideas es útil en caballos, no solamente en el diagnóstico de enfermedades, sino que, ambos tipos de hormonas, son utilizadas como herramientas para monitorización e investigación del desempeño físico y la tasa metabólica.Los objetivos de este estudio son: (i) probar la capacidad del analizador automatizado AIA 360® (TOSOH Bioscience) para la medición de hormonas tiroideas y cortisol en suero equino de forma confiable y; (ii) establecer un intervalo de referencia para hormonas tiroideas en caballos costarricenses utilizando el AIA -360®.Se muestreó 68 caballos saludables, libres de medicación (31 machos y 37 hembras) y se agruparon en tres categorías, con base en la edad. Las concentraciones séricas de tiroxina total (TT4), tiroxina libre (FT4) y cortisol fueron cuantificadas en el AIA-360®. La relación estadística, entre sexo, edad y valores hormonales, se determinó con las pruebas de Kruskal-Wallis, Dunn y Wilcoxon (U Man-Whitney). Se consideró significativo un valor de p <0.05.Los intervalos de referencia fueron los siguientes: TT4 14.16 – 46.33 nmol/L, FT4 3.60 – 16.09 pmol/L y cortisol 23.45 – 166.64 nmol/L. Estadísticamente, no se encontró relación significativa entre el sexo, la edad y los valores hormonales. Se observó relaciones significativas (p<0.05) entre los niveles hormonales y algunos de los parámetros medio ambientales en los cuales se encontraban los animales. A mayor altitud, los niveles de cortisol fueron más elevados; mientras que, conforme aumentaba la temperatura ambiental, los valores de cortisol fueron más bajos. Los niveles de FT4 incrementaron a mayor precipitación. La concentración de TT4 tiende a disminuir conforme aumentan las horas-luz diarias. Sin embargo, no se encontró una relación estadística para ello (p<0.30). Los resultados muestran que el AIA-360® es útil para la medición de hormonas tiroideas y cortisol; además, que los valores encontrados son comparables con otros estudios y técnicas de análisis.
Osteosarcoma extraesquelético retroperitoneal en un perro: reporte de un caso
Authors: Piedra-Mora César , Barrantes-Murillo Daniel , Alfaro-Alarcón Alejandro 
Published: July 2016

Se presentó un perro, de raza mixta, no castrado, 15 años de edad, con hiporexia, constipación, letargia y dolor abdominal. En el examen físico, se identificó una masa intraabdominal. Las pruebas hematológicas evidenciaron anemia leve, normocítica y normocrómica y leucocitosis a causa de neutrofilia. Los resultados de bioquímica sérica mostraron alteraciones del nitrógeno ureico sanguíneo, fosfatasa alcalina sérica y creatinina. En el ultrasonido, se detectó un nódulo en bazo. Las radiografías evidenciaron un área radiopaca en abdomen, cerca de las vértebras lumbares. Se realizó laparotomía exploratoria y se encontró dos masas retroperitoneales. Se realizó la eutanasia del paciente, debido al difícil abordaje quirúrgico. El análisis histopatológico e inmunohistoquímico de las masas fue concluyente de un osteosarcoma extraesquelético. Los osteosarcomas extraesqueléticos son tumores malignos, de origen mesenquimal infrecuentes, sin involucramiento primario de tejido óseo o periostio. La localización retroperitoneal de estos tumores pocas veces ha sido reportada.
Enhanced remanence in nanocomposite of Y1-xSmxCo5/Co ribbons obtained by melt-spinning
Authors: Hidalgo José L. , Grijalva Maria C. , Matutes José A. , Orquiz Carlos W. , De Araujo Fernando L. , Olímpio Francisco A. 
Published: July 2016

ABSTRACTThe synthesis of alloys with nominal composition for Y1-xSmxCo5 by means of arc furnace and melt-spinning, is of critical scientific importance due that if replaced partially or completely the Samarium by the Yttrium is possible understand what contribution the earth element rare to the exchange interactions that guide to increased remnant magnetization in a nanocomposite. The alloys of Y1-xSmxCo5/Co obtained by melt-spun were characterized by x-ray diffraction with a compact hexagonal crystal structure the CaCu5 type. The alloys for nanocomposites of Y1-xSmxCo5/Co ribbons show ferromagnetic behavior with good magnetic properties, order to demonstrate this the magnetic properties were measured using a pulsed field magnetometer applying a high magnetic field in order to obtain a saturated magnetization curve and a high coercivity of 0.69 MA/m and an enhanced remanence of σr/σsat ratio equal to 0.57 were determined.
Epistemologia e Ensino da História
Authors: Alves Luis Alberto 
Published: July 2016

A articulação entre investigação e produção científica na área da História e os programas escolares ocupa os debates internacionais. A importância concedida pelos decisores educativos às ciências da educação reforçaram a transversalidade dos saberes em detrimento das especificidades epistemológicas. A divisão tradicional entre saber e saber-fazer sai fragilizada, e a luta pela inscrição de uma didática ancorada no saber disciplinar percorre um caminho nem sempre facilitado. A maturidade hoje assumida pela Educação Histórica leva-nos de regresso à epistemologia do saber histórico, assumida como a melhor estratégia para levar o aluno a aprender segundo regras específicas da construção desse saber, transformando-o, pelo conhecimento adquirido, num verdadeiro utilizador do passado para uma efetiva intervenção cívica no presente. A prática de formação de professores de História em Portugal ao longo de 30 anos nos permite enfatizar a importância do regresso a fontes primárias e a processos didáticos socioconstrutivistas para reafirmar o sentido do ofício do historiador e das suas práticas científicas no contexto escolar da disciplina.
As políticas públicas de avaliação do livro didático: múltiplas experiências
Authors: Maia Tatyana Amaral 
Published: July 2016

Resenha do livro: Oliveira, Margarida Maria Dias; Costa, Aryana (Org.) Para que(m) se avalia? Livros Didáticos e Avaliações (Brasil, Chile, Espanha, Japão, México e Portugal) Natal: Ed. UFRN, 2014. 164p.
Interview – Jörn Rüsen Some ideas on the intersection of metahistory and history didactics
Authors: Gago Marília 
Published: July 2016

Interview conducted by email on March 1, 2, and 28, 2016. Jörn Rüsen, Senior Fellow at the Kulturwissenschaftliches Institut (Institute for Advanced Study in the Humanities) at Essen, Germany, and Honorary doctorate of Universidade de Brasília (Brazil) and University of Lund (Sweden). Professor emeritus at the University of Witten/Herdecke (Germany) and Order of Merit, State of Northrhine-Westfalia, Federal Republic of Germany. He was Visiting Chair Research Fellow at the Institute for Advanced Studies in Humanities and Social Sciences National Taiwan University, head of the research project on “Humanism in the era of globalization – an intercultural dialogue on humanity, culture, and values” at the Kulturwissenschaftliches Institut at Essen, Germany, and President/director of that Institute.