bluuebunny/crossref_metadata_2025 huggingface dataset:
Teaching Digital Citizenship in the Networked Classroom
Authors: Steeves Valerie , Regan Priscilla M.
Published: July 2018

This article uses the results of a 2016 survey of Canadian teachers to provide a snapshot of the extent to which the survey participants have been able to successfully incorporate digital literacy into their daily teaching. The data suggests that governments continue to prioritize technical access elements over more participatory elements of digital literacy, making it difficult to go beyond basic literacy requirements. In addition, there are a number of barriers that make it more difficult for teachers to cultivate digital citizenship. These barriers include: the dissolving boundary between in-school and out-of-school contexts; the commercial nature of the digital world; and the continuing difficulty of evaluating online information. This article concludes by arguing that the concept of digital literacy should be broadened beyond the skills-based approach and instead should be solidly organized with the goal of promoting and preparing students for democratic citizenship.
Resource Request Based Energy Efficient Heuristic for Server Offloading in Cloud Computing Environment
Authors: Verma J. K. , Katti C. P.
Published: July 2018

Increasing demand for high computing power led to the establishment of large-scale data centers. A data center is a collection of millions of servers. These large-scale data centers consume a huge amount of electrical energy. Managing these servers for provisioning and de-provisioning of resources in an automatic and efficient way is a great challenge. We attempt to minimise the power consumption by reducing the number of servers and maximizing the resource utilization of the servers that are in use through virtualization of resources. We work upon Virtual Machine Consolidation for consolidating them on fewer servers for maximizing resource utilization. In this article, we propose a resource request based heuristic for offloading the overloaded servers to optimise power consumption efficiency.
O curso de matemática da UEM: uma problematização de sua história em seus primeiros anos
Authors: Araujo Neto Antonio Peixoto de , Trivizoli Lucieli Maria
Published: July 2018

O presente trabalho é resultado de uma dissertação de mestrado vinculada ao Programa de Pós-Graduação em Educação para a Ciência e a Matemática PCM-UEM. O objetivo naquela pesquisa foi investigar historicamente o processo de criação do curso de matemática da Universidade Estadual de Maringá e o desenvolvimento do curso em seus primeiros anos em um período compreendido entre 1969 e 1982. Neste artigo o objetivo é apresentar a narrativa histórica do curso de matemática da UEM construída na dissertação. Este trabalho está inserido no tema da história da matemática no Brasil e a narrativa apresentada é estruturada por meio do entrelaçamento de três perspectivas: a documental, a oral e a bibliográfica. As nossas análises evidenciam que o curso de matemática da UEM foi criado para ajudar no desenvolvimento e na visibilidade da cidade de Maringá, gerar uma abertura para os cursos de engenharia e sanar lacunas de professores do ensino secundário da região naquela época.
Escuela Nueva colombiana: análisis de sus guías de aprendizaje
Authors: Quintero Sara Evelin Urrea , Sa Elizabeth Figueiredo de
Published: July 2018

Concebido para a população camponesa colombiana, o modelo escolar denominado Escuela Nueva foi pensado e estruturado visando atender às representações e interesses  de formação da ruralidade daquele momento. Tendo esse modelo escolar como referência, esse artigo objetivou analisar os guias de aprendizagem considerados como espinha dorsal desse programa de educação rural. A pesquisa se inscreve na perspectiva da História Cultural, tendo como referencia as obras de Choppin (2002, 2004), Escolano Benito (2001) e Parra Sandoval (1996). A análise possibilitou perceber que as Escuelas Nuevas foram pensadas considerando o rural como um cenário harmônico, livre de contradições e conflitos, tradicional, espaço próprio do camponês, para silenciar uma ruralidade percebida como elemento de potencial subversão; construindo, assim, uma metodologia pragmática e um currículo que, se adequando ao campo em termos didáticos, de conteúdos e finalidades, formasse um sujeito disposto a trabalhar no rural, sem questionar as problemáticas sociais existentes.
Mannose Metabolism Is Essential for Th1 Cell Differentiation and IFN-γ Production
Authors: Zygmunt Beata M. , Węgrzyn Agnieszka , Gajska Weronika , Yevsa Tetyana , Chodaczek Grzegorz , Guzmán Carlos A.
Published: July 2018

Glucose-derived mannose is a common component of glycoproteins, and its deficiency leads to a severe defect in protein glycosylation and failure in basic cell functions. In this work, we show that mannose metabolism is essential for IFN-γ production by mouse Th1 cells. In addition, we demonstrate that the susceptibility of Th1 cells to glycolysis restriction depends on the activation conditions and that under diminished glycolytic flux, mannose availability becomes the limiting factor for IFN-γ expression. This study unravels a new role for glucose metabolism in the differentiation process of Th1 cells, providing a mechanistic explanation for the importance of glycolysis in immune cell functions.
Rare case of an isolated myeloid sarcoma presenting as dysphagia
Authors: Sangal Rishu , Mahawar Vivek , Jajodia Ankush , Mahanthi Himanshu , Koyyala Venkata
Published: July 2018

Myeloid sarcoma (MS) is an unusual neoplasm whose understanding is principally based on the case reports and/or theoretically dated contributions. MS represents the proliferation of myeloblasts of acute myeloid leukemia (AML) at extramedullary sites. While extramedullary involvement in AML is unusual in itself, isolated (de novo) MSs that is MSs devoid of any bone marrow involvement are exceptionally rare. The present case report study expands the gamut of our acquaintance showing that MS can occur de novo, with no apparent sign or symptom of concomitant hematological disease and may show a significant response to treatment this may be omitted here. This case reports described a middle-aged male presenting as with dysphagia with isolated MS in the stomach, a very rare site.
Uniqueness of dg enhancements for the derived category of a Grothendieck category
Authors: Canonaco Alberto , Stellari Paolo
Published: July 2018

We prove that the derived category of a Grothendieck abelian category has a unique dg enhancement. Under some additional assumptions, we show that the same result holds true for its subcategory of compact objects. As a consequence, we deduce that the unbounded derived category of quasi-coherent sheaves on an algebraic stack and the category of perfect complexes on a noetherian concentrated algebraic stack with quasi-finite affine diagonal and enough perfect coherent sheaves have a unique dg enhancement. In particular, the category of perfect complexes on a noetherian scheme with enough locally free sheaves has a unique dg enhancement.
Connectedness to Nature and Environmental Identity Scales Reveal Environmental Awareness in Greek Teachers
Authors: Gkargkavouzi Anastasia , Paraskevopoulos Stefanos , Matsiori Steriani
Published: July 2018

Core Ideas

The present study measures Greek teachers' environmental identity, feeling of connectedness to nature, and environmental knowledge.

Primary and secondary teachers are environmentally conscious, but they lack knowledge of fundamental concepts of environmental literacy.

Effective environmental education in schools requires environmental literacy in teachers.

Teachers are responsible to provide their students with knowledge, values, attitudes, and skills needed to preserve the environment in order to produce environmentally literate citizens. The latter is possible if teachers themselves have high levels of environmental knowledge, strong environmental awareness, and manifest environmental behavior. In response, this study aimed to assess Greek in‐service teachers' environmental knowledge, eco‐friendly behavior, and their connectedness to nature and environmental identity as aspects of their environmental consciousness. A self‐administered questionnaire was used to assess teachers' demographic profile, environmental knowledge, and self‐reported environmental behavior. Two well‐established measures of general environmental attitudes—connectedness to nature and environmental identity scales—were also used. The method lies on principal component analysis and evaluation of Cronbach's alpha to confirm the reliability and validity of the scales. The results showed that teachers' scores on both scales were high, revealing their positive attitudes in terms of the environment. Responders possess a moderate level of environmental knowledge and they possess pro‐environmental behavior. Results from this study can be useful to policy makers in order to design and promote the implementation of teachers' training programs in Greece and other countries of the European Union that focus on the enhancement of their environmental literacy.
Transformation of the Housing Market in Tokyo since the Late 1990s: Housing Purchases by Single-person Households
Authors: Kubo Tomoko , Yui Yoshimichi
Published: July 2018

This study aims to clarify the correlation between the transformation of the Japanese housing market and the increasing number of single-person households in Japan, with a special focus on the supply of compact condominiums. In order to achieve the abovementioned purpose, the changes in the Japanese housing market and diversification of the Japanese household structure are described. Finally, the features of the supply strategies of condominium suppliers, which reflect the diversification of the household structure and increasing need for condominiums by single-person households in central Tokyo, are examined.
Easing Transition with Metaphors: A Case of Transsexuality
Authors: Prindle Tamae K.
Published: July 2018

Using Yūji Usui’s novel A Grass-Carp on a Tree (1993) and its film adaptation (1997) by Atsushi Ishikawa as metaphors, this paper traces the transition of Japanese attitudes towards sexuality. The novel and the film work as vehicles that “map” what is actuallytaking place in Japan and how the transition is felt by Japanese people.
E-Musik – Kunstreligion der Moderne: Beethoven und andere Götter
Authors: Barbo Matjaž
Published: July 2018

Helmut Loos se v svoji monografiji sooča s temeljnimi vprašanji recepcije, razumevanja in vrednotenja glasbe, določenih znotraj koncepta umetnostne religije moderne.
Zarlino’s Harpsichord: A Contribution to the (Pre)History of Equal Temperament
Authors: Sukljan Nejc
Published: July 2018

This paper deals with the tuning question as it is discussed in Gioseffo Zarlino’s principal musical-theoretical treatise, Istitutioni harmoniche (1558). First, Zarlino’s tuning system in vocal music (the syntonic diatonic) is presented; then, its shortcomings are discussed; and finally, its adjustment (temperament) for the use in instrumental music is explained.
Perfil epidemiológico de casos de HIV-1 atendidos em um serviço de atenção secundária em Belém-PA no período de janeiro a abril de 2012
Authors: Carvalho Alôma Cecília , Amaral Diana da Silva , Chaves Emanuele Cordeiro , Pamplona Mônica Custódia do Couto Abreu
Published: July 2018

Objetivo: descrever o perfil epidemiológico dos casos de HIV-1 atendidos em um serviço de atenção secundária. Método: trata-se de um estudo epidemiológico, transversal, retrospectivo, documental, quantitativo, em prontuários de portadores de HIV-1 diagnosticados no período de janeiro a abril de 2012 em uma Unidade de Referência em doenças infecciosas e parasitárias em Belém-PA, correspondendo a uma amostra de 153 prontuários. Resultados: predominou o gênero masculino (60,78%), faixa etária entre 21 a 30 anos (62,10%), estado civil solteiro (60,13%), escolaridade ensino fundamental (45,10%), exposição sexual (90,20%), orientação heterossexual (66,01%) e não utilização de preservativo nas relações sexuais antes da infecção (75,16%). Conclusão: houve predominância do gênero masculino, cenário que se aproxima do nacional, com uma população relativamente jovem, o que aponta vulnerabilidade desta faixa etária, solteiros; pardos, com nível de escolaridade predominante no Ensino Fundamental, o que pode interferir na falta de conhecimento e conscientização da gravidade da doença. A heterossexualização da doença aponta para um novo cenário da transmissão do HIV na região, fato que aponta a necessidade de mudanças no perfil de campanhas de prevenção da infecção. A via sexual continua apresentando-se como a principal via de exposição ao HIV, devido a não utilização do preservativo.
Occupational Therapist–Delivered Cognitive–Behavioral Therapy for Knee Osteoarthritis: A Randomized Pilot Study
Authors: Murphy Susan L. , Janevic Mary R. , Lee Pearl , Williams David A.
Published: July 2018

OBJECTIVE. This study assessed the feasibility and preliminary efficacy of an online-assisted, occupational therapist–delivered, cognitive–behavioral therapy intervention to promote physical function in patients with knee osteoarthritis (KOA).

METHOD. Fifty-seven participants with KOA were randomized 2:1 to the Engage program (eight clinic-based sessions supported by online modules) or usual care. Using analysis of covariance, we estimated Engage’s effect on physical function (Western Ontario and McMaster Universities Osteoarthritis Index’s Physical Function subscale [WOMAC–PF]) at 6 mo.

RESULTS. Data were analyzed on 46 completers. Engage was associated with a small effect (η2 = 0.01) on the WOMAC–PF. More Engage participants than controls reported much or very much improvement (45% vs. 13%; p = .03). Satisfaction was high, and 30 of 31 participants attended six sessions or more.

CONCLUSION. An online-supported cognitive–behavioral program for people with KOA delivered by occupational therapists is feasible and may contribute to improved physical function.
Management of business process reengineering projects: a case study
Authors: Joshi Chandrashekhar S , Dangwal P G
Published: July 2018

Business process reengineering (BPR) projects are undertaken by outward-looking companies that are looking for significant change in their performance and wanting radical changes in the chosen parameters. Generally, these companies are trendsetters in their respective industries. BPR projects take longer time for completion and may require significant capital inflows as well. This paper discusses BPR, special requirements/considerations for BPR project management and, through a case analysis, seeks to identify and emphasise the critical success factors for the implementation of a BPR project
Evaluating two methods of estimating error variances using simulated data sets with known errors
Authors: Rieckh Therese , Anthes Richard
Published: July 2018

Abstract. In this paper we compare two different methods of estimating the error
variances of two or more independent data sets. One method, called the
“three-cornered hat” (3CH) method, requires three data sets. Another
method, which we call the “two-cornered hat” (2CH) method, requires only
two data sets. Both methods have been used in previous studies to estimate
the error variances associated with a number of physical and geophysical data
sets. A key assumption in both methods is that the errors of the data sets
are not correlated, although some studies have considered the effect of the
partial correlation of representativeness errors in two or more of the data
sets. We compare the 3CH and 2CH methods using a simple model to simulate
three and two data sets with various error correlations and
biases. With this model, we know the exact error variances and
covariances, which we use to assess the accuracy of the 3CH and 2CH
estimates. We examine the sensitivity of the estimated error variances
to the degree of error correlation between two of the data sets as
well as the sample size. We find that the 3CH method is less sensitive
to these factors than the 2CH method and hence is more accurate. We
also find that biases in one of the data sets has a minimal effect on
the 3CH method, but can produce large errors in the 2CH method.
Impact of decadal reversals of the north Ionian circulation on phytoplankton phenology
Authors: Lavigne Héloise , Civitarese Giuseppe , Gačić Miroslav , D'Ortenzio Fabrizio
Published: July 2018

Abstract. In the north Ionian, water circulation is characterized by a decadal
alternation of cyclonic and anticyclonic regime driven by the mechanism
called BiOS (bimodal oscillating system). The circulation regimes affect both
vertical dynamics and the nutrient distribution. The north Ionian is then a
good study area to investigate how changes in circulation can affect
phytoplankton dynamics in oligotrophic regions. From in situ observations,
for each circulation regime the averaged distribution of isopycnals is
provided, and a depth difference of about 80 m is estimated for the
nitracline between the cyclonic and anticyclonic regime. Based on phytoplankton
phenology metrics extracted from annual time series of satellite ocean color
data for the period 1998–2012, the cyclonic and anticyclonic regimes are
compared. Results show that the average chlorophyll in March, the date of
bloom onset and the date of maximum chlorophyll were affected by circulation
patterns in the north Ionian. In the center of the north Ionian gyre, the
bloom started in December and chlorophyll was low in March when circulation
was anticyclonic, whereas during the cyclonic circulation regime, a late
chlorophyll peak, likely resulting from different phytoplankton dynamics, was
commonly observed in March. An additional analysis shows that the winter
buoyancy losses, which govern the mixed layer depth (MLD), also contribute to
explaining the interannual variability in bloom onset and intensity. Two trophic
regimes were then identified in the north Ionian gyre (NIG) and they could be
explained with the relative position of the MLD and nitracline. The first one
is characterized by an early winter bloom onset and the absence of
a chlorophyll peak in March. It was observed when circulation was anticyclonic
or when winter MLD was relatively shallow. Dominant regenerated production
all year and an absence of significant nutrient supplies to surface
waters are proposed to explain this trophic regime. Conversely, the second
trophic regime is marked by a bloom onset in late winter (i.e., February) and
a chlorophyll peak in March. The chlorophyll increase was interpreted as a
direct response to the nutrient enrichment of surface waters. This winter–spring
bloom was observed when circulation was cyclonic and when winter mixing was
relatively strong.
Climate information preserved in seasonal water isotope at NEEM: relationships with temperature, circulation and sea ice
Authors: Zheng Minjie , Sjolte Jesper , Adolphi Florian , Vinther Bo Møllesøe , Steen-Larsen Hans Christian , Popp Trevor James , Muscheler Raimund
Published: July 2018

Abstract. Analyzing seasonally resolved δ18O ice core data can aid the
interpretation of the climate information in ice cores, also providing
insights into factors governing the δ18O signal that cannot be
deciphered by investigating the annual δ18O data only.
However, the seasonal isotope signal has not yet been investigated in
northern Greenland, e.g., at the NEEM (North Greenland Eemian Ice Drilling)
ice core drill site. Here, we analyze seasonally resolved δ18O
data from four shallow NEEM ice cores covering the last 150 years. Based on
correlation analysis with observed temperature, we attribute about 70 and
30 % of annual accumulation to summer and winter, respectively. The NEEM
summer δ18O signal correlates strongly with summer western
Greenland coastal temperature and with the first principal component (PC1) of
summer δ18O from multiple seasonally resolved ice cores from
central/southern Greenland. However, there are no significant correlations
between NEEM winter δ18O data and western Greenland coastal
winter temperature or southern/central Greenland winter δ18O
PC1. The stronger correlation with temperature during summer and the
dominance of summer precipitation skew the annual δ18O signal
in NEEM. The strong footprint of temperature in NEEM summer
δ18O record also suggests that the summer δ18O
record rather than the winter δ18O record is a better
temperature proxy at the NEEM site. Despite the dominant signal of the North
Atlantic Oscillation (NAO) and the Atlantic Multidecadal Oscillation (AMO) in
the central–southern ice core data, both NAO and AMO exert weak influences
on NEEM seasonal δ18O variations. The NEEM seasonal
δ18O is found to be highly correlated with Baffin Bay sea ice
concentration (SIC) in the satellite observation period (1979–2004),
suggesting a connection of the sea ice extent with δ18O at
NEEM. NEEM winter δ18O significantly correlates with SIC even
for the period prior to satellite observation (1901–1978). The NEEM winter
δ18O may reflect sea ice variations of Baffin Bay rather than
temperature itself. This study shows that seasonally resolved
δ18O records, especially for sites with a seasonal
precipitation bias such as NEEM, provide a better understanding of how
changing air temperature and circulation patterns are associated with the
variability in the δ18O records.
A general database of hydrometeor single scattering properties at microwave and sub-millimetre wavelengths
Authors: Eriksson Patrick , Ekelund Robin , Mendrok Jana , Brath Manfred , Lemke Oliver , Buehler Stefan A.
Published: July 2018

Abstract. A main limitation today in simulations and inversions of microwave observations of ice hydrometeors (cloud ice, snow, hail, etc.) is the lack of data describing the interaction between electromagnetic waves and the particles. To improve the situation, the development of a comprehensive dataset of such scattering properties has been started. The database aims at giving a broad coverage in both frequency (1 to 886 GHz) and temperature (190 to 270 K), to support both passive and active current and planned measurements, and to provide data corresponding to the full Stokes vector. This first version of the database is restricted to totally random particle orientation. Data for 34 particle sets, i.e. habits, have been generated. About 17 of the habits can be classified as single crystals, three habits can be seen as heavily rimed particles, and the remaining habits are aggregates of different types, e.g. snow and hail. The particle sizes considered vary between the habits, but maximum diameters of 10 and 20 mm are typical values for the largest single crystal and aggregate particles, respectively, and the number of sizes per habit is at least 30. Particles containing liquid water are also inside the scope of the database, but this phase of water is so far only represented by a liquid sphere habit. The database is built upon the netCDF4 file format. Interfaces to browse, extract and convert data for selected radiative transfer models are provided in MATLAB and Python. The database and associated tools are publicly available from Zenodo (https://doi.org/10.5281/zenodo.1175572, Ekelund et al., 2018b), and https://doi.org/10.5281/zenodo.1175588, Mendrok et al., 2018, respectively). Planned extensions include non-spherical raindrops, melting particles and a second orientation case that can be denoted as azimuthally random.
Contributions of catchment and in-stream processes to suspended sediment transport in a dominantly groundwater-fed catchment
Authors: Liu Yan , Zarfl Christiane , Basu Nandita B. , Schwientek Marc , Cirpka Olaf A.
Published: July 2018

Abstract. Suspended sediments impact stream water quality by increasing the
turbidity and acting as a vector for strongly sorbing pollutants.
Understanding their sources is of great importance to developing appropriate
river management strategies. In this study, we present an integrated sediment
transport model composed of a catchment-scale hydrological model to predict
river discharge, a river-hydraulics model to obtain shear stresses in the
channel, a sediment-generating model, and a river sediment-transport model.
We use this framework to investigate the sediment contributions from
catchment and in-stream processes in the Ammer catchment close to
Tübingen in southwestern Germany. The model is calibrated to stream flow
and suspended-sediment concentrations. We use the monthly mean
suspended-sediment load to analyze seasonal variations of different
processes. The contributions of catchment and in-stream processes to the
total loads are demonstrated by model simulations under different flow
conditions. The evaluation of shear stresses by the river-hydraulics model
allows the identification of hotspots and hot moments of bed erosion for the main stem
of the Ammer River. The results suggest that the contributions of
suspended-sediment loads from urban areas and in-stream processes are higher
in the summer months, while deposition has small variations with a slight
increase in summer months. The sediment input from agricultural land and
urban areas as well as bed and bank erosion increase with an increase in flow
rates. Bed and bank erosion are negligible when flow is smaller than the
corresponding thresholds of 1.5 and 2.5 times the mean discharge,
respectively. The bed-erosion rate is higher during the summer months and
varies along the main stem. Over the simulated time period, net sediment
trapping is observed in the Ammer River. The present work is the basis to
study particle-facilitated transport of pollutants in the system, helping to
understand the fate and transport of sediments and sediment-bound pollutants.
Analysis of three-dimensional unsaturated–saturated flow induced by localized recharge in unconfined aquifers
Authors: Chang Chia-Hao , Huang Ching-Sheng , Yeh Hund-Der
Published: July 2018

Abstract. In the process of groundwater recharge, surface water usually enters an
aquifer by passing an overlying unsaturated zone. Little attention has been
given to the development of analytical solutions to a coupled
unsaturated–saturated flow model due to localized recharge up to now. This
paper develops a mathematical model to depict three-dimensional transient
unsaturated–saturated flow in an unconfined aquifer with localized recharge
on the ground surface. The model contains Richards' equation for unsaturated
flow, a flow equation for saturated formation, and the Gardner constitutive
model describing the behavior of unsaturated soil properties. Both flow
equations are coupled through the continuity conditions of the head and flux
at the water table. The semi-analytical solution to the coupled flow model is
derived by the methods of Laplace transform and Fourier cosine transform. A
sensitivity analysis is performed to explore the head response to the change
in each of the aquifer parameters. A quantitative tool is presented to assess
the recharge efficiency signifying the percentage of the water from the
recharge to the aquifer. We found that the effect of unsaturated flow on the
saturated hydraulic head is negligible if two criteria associated with the
unsaturated soil properties and initial aquifer thickness are satisfied. The
head distributions predicted from the present solution match well with those
from finite-difference simulations. The predictions of the present solution
also agree well with the observed data from a field experiment at an
artificial recharge pond in Fresno County, California.
Frequency response and self-noise of the MET hydrophone
Authors: Zaitsev Dmitry L. , Avdyukhina Svetlana Y. , Ryzhkov Maksim A. , Evseev Iliya , Egorov Egor V. , Agafonov Vadim M.
Published: July 2018

Abstract. An electrochemical hydrophone based on the principles of molecular electronic transfer (MET) has been described. The paper presents theoretical and experimental results for the sensitivity and the level of self-noise determination for the MET hydrophone (METH) in the frequency range of 0.02–200 Hz, which determines the fields of acceptance of the devices being developed. An experimental model has been developed by using a force-balancing feedback. Different methods and techniques for its calibration have been developed. The experimental device with 0.75 mV Pa−1 sensitivity flat in the frequency band 0.02–200 Hz has been presented. It has been demonstrated that in the ultra-low-frequency range METH noise could be much lower than the standard Wenz noise model. Easy to produce, cheap and suitable for mass production, the MET hydrophone could be in demand in marine and land acoustic research.
Dynamic response of Antarctic Peninsula Ice Sheet to potential collapse of Larsen C and George VI ice shelves
Authors: Schannwell Clemens , Cornford Stephen , Pollard David , Barrand Nicholas E.
Published: July 2018

Abstract. Ice shelf break-up and disintegration events over the past
5 decades have led to speed-up, thinning, and retreat of upstream
tributary glaciers and increases to rates of global sea-level rise. The
southward progression of these episodes indicates a climatic cause and in
turn suggests that the
larger Larsen C and George VI ice shelves may undergo a similar collapse in the
future. However, the extent to which removal of the Larsen C and George VI ice
shelves will affect upstream tributary glaciers and add to global sea levels
is unknown. Here we apply numerical ice-sheet models of varying complexity to
show that the centennial sea-level commitment of Larsen C embayment glaciers
following immediate shelf collapse is low (<2.5 mm to 2100, <4.2 mm to
2300). Despite its large size, Larsen C does not provide strong buttressing
forces to upstream basins and its collapse does not result in large additional
discharge from its tributary glaciers in any of our model scenarios. In
contrast, the response of inland glaciers to a collapse of the George VI Ice Shelf
may add up to 8 mm to global sea levels by 2100 and 22 mm by 2300 due in part
to the mechanism of marine ice sheet instability. Our results demonstrate the
varying and relative importance to sea level of the large Antarctic Peninsula
ice shelves considered to present a risk of collapse.
On the reflectance spectroscopy of snow
Authors: Kokhanovsky Alexander , Lamare Maxim , Di Mauro Biagio , Picard Ghislain , Arnaud Laurent , Dumont Marie , Tuzet François , Brockmann Carsten , Box Jason E.
Published: July 2018

Abstract. We propose a system of analytical equations to retrieve snow grain
size and absorption coefficient of pollutants from snow reflectance or snow
albedo measurements in the visible and near-infrared regions of the
electromagnetic spectrum, where snow single-scattering albedo is close to
1.0. It is assumed that ice grains and impurities (e.g., dust, black and
brown carbon) are externally mixed, and that the snow layer is semi-infinite and
vertically and horizontally homogeneous. The influence of close-packing
effects on reflected light intensity are assumed to be small and ignored. The
system of nonlinear equations is solved analytically under the assumption that
impurities have the spectral absorption coefficient, which obey the
Ångström power law, and the impurities influence the registered spectra
only in the visible and not in the near infrared (and vice versa for ice grains).
The theory is validated using spectral reflectance measurements and albedo of
clean and polluted snow at various locations (Antarctica Dome C, European
Alps). A technique to derive the snow albedo (plane and spherical) from
reflectance measurements at a fixed observation geometry is proposed. The
technique also enables the simulation of hyperspectral snow reflectance
measurements in the broad spectral range from ultraviolet to the
near infrared for a given snow surface if the actual
measurements are performed at a restricted number of wavelengths (two to four,
depending on the type of snow and the measurement system).
La calidad de la educación artística en la formación docente. Recorridos y desafíos. Conversatorio con la Dra. Marta Eugenia Valle Contreras y la Mtr. Sara María Boulogne, moderado por el Lic. Mario Zetino
Authors: Valle Contreras Marta Eugenia
Published: July 2018

No hay resúmenes disponiblesAKADEMOS, Año 11, Vol. 2, No 29, Julio-Diciembre 2017: 87-100
Predictors of Branding and the Role of Warranty on Consumer Choice
Authors: Blewitt J.C.
Published: July 2018

This conceptual paper reviews the literature from three distinct areas in consumer behavior: branding, warranty, and choice. In using a mixture of these three areas, propositions are developed which will be tested in future research. The impact of this study is geared towards understanding the behavior of consumers purchasing high cost items and the relative importance and trust that is placed in the warranty that comes with such a purchase. While the study will consider domestic (United States) consumers, international factors such as country of origin and psychic distance will be posed as viable factors in the decision making process. We propose that six factors will impact the role of branding in the decision making process and that a warranty will serve as a moderator to the ultimate choice decision.
Catalunya, actor en la cooperació transfronterera: quinze anys de perspectiva, processos i resultats
Authors: Martín-Uceda Javier
Published: July 2018

Aquest article vol donar una perspectiva sobre el paper que ha tingut la Generalitat de Catalunya com a actor en matèria de cooperació transfronterera. L’anàlisi es basa en dos elements: per un costat, els projectes finançats pel fons INTERREG en les convocatòries III i IV (1999-2014), en què Catalunya ha participat com a actor; i per altre, les estructures de cooperació que ha impulsat i desenvolupat també durant els mateixos anys. L’estudi posa de manifest com especialment durant els anys 2003-2006 hi va haver un impuls destacat del conjunt d’iniciatives transfrontereres, tant en projectes finançats per INTERREG com en iniciatives de cooperació institucional. Quant als resultats, pel que fa als projectes en els quals participa Catalunya amb altres actors, fomenten especialment el desenvolupament econòmic i la gestió del medi ambient; i pel que fa a la cooperació institucional, tot i que han reeixit algunes iniciatives, calen encara esforços perquè es consolidi.
A comparison of threedimensional photogrammetric analysis of the face with traditional cephalometric measurements
Authors: Tsynkel Paweł , Woźniak Krzysztof
Published: July 2018

Spatial reconstruction based on two-dimensional photographs is a method to obtain 3D images which does not require high equipment investments. The third dimension is obtainable by taking additional photographs of an object from several angles according to a scheme allowing to determine a specific perspective and their relative location towards others in a precise way. Aim. To assess precision of the author’s photogrammetric method for three-dimensional facial reconstruction (3D). To compare results of cephalometric analyses on X-ray scans with photogrammetric threedimensional facial reconstruction. Material and methods. The study was performed based on components of routine medical documentation of 57 orthodontic patients (21 males and 36 females, mean age 18.2 years (9.9–45.3 years). Right-face cephalometric radiographs and right-, full-, and left-face digital photographs were analyzed in the studies. All photographs were taken with a mobile photostatic station. Photographs were taken when a patient assumed a sitting position with natural head orientation (NHO). With regard to a laboratory stage, all photographs were cataloged appropriately and then they were calibrated, idealized, and spatially reconstructed (3D). Results. With regard to a 3D facial reconstruction method a mean difference of measurements was 0.45 mm and the standard deviation was 0.38 mm. Precision (repeatability) for five linear measurements of the face was 0.53 mm (SD = 0.46 mm), and for angular measurements the precision was 0.6° with the standard deviation of 0.49°. Results of the correlation analysis showed that the mean correlation coefficient (r) for six angular measurements was 0.79. The correlation coefficient between measurements performed using both cephalometric methods was statistically significant (p = 0.0000). Conclusions. The authors’ system of photogrammetric 3D facial reconstruction is an effective cephalometric tool. 3D photogrammetric facial reconstruction may be used when planning orthodontic treatment. (Tsynkel P, Woźniak K. A comparison of three-dimensional photogrammetric analysis of the face with traditional cephalometric measurements. Orthod Forum 2017; 13: 141-52).
Evaluation of a neuromotor
ability of the tongue in patients
at the developmental age using
a stereognostic examination
Authors: Osiewacz Sandra , Strzecki Adrian , Szczepańska Joanna , Pawłowska Elżbieta
Published: July 2018

Normal development of physiological functions affects normal maturation of the whole stomatognathic system and articulation. A persistent infantile swallowing pattern is listed as one of factors responsible for malocclusions and speech problems. “Stereognosis” originates from neurology and indicates an ability to recognise objects only by touch. Aim. The aim of the paper was to compare a neuromotor ability of the tongue in patients with a persistent infantile swallowing pattern compared to patients with a mature swallowing pattern. Material and methods. The study included 620 patients aged between 4 and 13 years. All subjects were diagnosed for swallowing dysfunctions with a spatula for speech therapy and a visual assessment when they were swallowing saliva, and then divided into 3 groups: study group (children with malocclusions and tongue dysfunctions) – 290 patients; comparator group (children with malocclusions and without tongue dysfunctions) – 240 patients; control group (children without malocclusions or tongue dysfunctions) – 90 patients. Stereognostic tests were performed according to Koczorowski methods and included recognition of geometrical shapes of silicone moulders using one’s tongue and without vision. Results. A differential analysis was performed and the following factors were included: age, sex and malocclusion. There were statistically significant differences between individual groups namely the study and comparator groups, study and control groups, and between the comparator and control groups. Results obtained indicate that a tongue dysfunction is a factor impairing sensory and motor correlation in patients at the developmental age. Conclusions. Patients with malocclusions complicated by tongue dysfunctions have impaired stereognostic sensation in the oral cavity. Impaired oral perception in patients at the developmental age with an abnormal position and functions of the tongue requires interdisciplinary specialist orthodontic treatment and speech therapy. (Osiewacz S, Strzecki A, Szczepańska J, Pawłowska E. Evaluation of a neuromotor ability of the tongue in patients at the developmental age using a stereognostic examination. Orthod Forum 2017; 13: 267-82).
Complete analysis of space
in the dental arch used in the
Tweed-Merrifield technique as
a key to prepare a maximally
individual plan of orthodontic
treatment
Authors: Warmuz Justyna , Kawala Beata , Minch Liwia
Published: July 2018

The Tweed-Merrifield technique is based on a simple and detailed diagnosis and therapy considering a shape of the dental arch with preservation or improvement of facial features. Aim. The aim of the work was to present a reliable and structured method to analyse diagnostic models used in the Tweed-Merrifield technique. Material and methods. Based on a review of available literature the paper presents rules to assess an amount of space in the arch for tooth movements used in the Tweed-Merrifield technique. The analysis of models in this technique is based on the assessment of three segments of the dentition: anterior, middle and posterior. With regard to each segment actual width of teeth and amount of space available in the arch is measured. Additionally, in the anterior segment evaluation of alignment of lower incisors in relation to FMIA (Frankfort Mandibular Incisor Axis Angle) or IMPA (Lower Incisor Mandibular Plane Angle) cephalometric angles as well as assessment of the soft tissues thickness is important. With regard to the middle segment of the dentition measurement of the curve of the Spee plays an important role, and with regard to the posterior segment it is also necessary to evaluate expected growth in patients at the developmental age. Conclusion. A detailed assessment of possible tooth movements and treatment management taking into account an initial shape of the arch allow to obtain stable therapeutic outcomes. (Warmuz J, Kawala B, Minch L. Complete analysis of space in the dental arch used in the TweedMerrifield technique as a key to prepare a maximally individual plan of orthodontic treatment. Orthod Forum 2017; 13: 283-90).
Cuidado de enfermagem às mães de recém-nascidos pré-termo para manutenção da lactação
Authors: Trojahn Tatiane Correa , Rodrigues Andressa Peripolli , Langendorf Tassiane Ferreira , Paula Cristiane Cardoso de , Souza Ívis Emília de Oliveira , Padoin Stela Maris de Mello
Published: July 2018

Objetivo: comprender el significado de la atención de enfermería a las madres de recién nacidos prematuros para mantener la lactancia desde la perspectiva de los profesionales de enfermería que trabajan en una Unidad de Cuidados Intensivos Neonatales. Método: estudio fenomenológico, basado en el referente teórico de Martin Heidegger. Las entrevistas se llevaron a cabo con 10 profesionales de enfermería de abril a agosto de 2013, en un hospital universitario del estado de Rio Grande do Sul, Brasil. Resultados: los profesionales señalaron el referente temporal en el cuidado, cuando indican que la visión de la importancia de la lactancia materna es fruto de su experiencia como madres (pasado) y como profesionales (presente), que aprenden con compañeros de trabajo, madres y conocimiento científico, que modifican su visión de lactancia materna del recién nacido en riesgo, con posibilidades de actuar en el mantenimiento de la lactancia (futuro). Conclusión: entender este referente temporal significa reconocer la necesidad de espacios institucionales para que los profesionales puedan reflexionar y compartir sus vivencias (pasadas), experiencias y vivencias (presentes) para construir permanentemente el conocimiento e incorporarlas a su práctica (futura) y brindar atención calificada a las madres para mantener la lactancia.
Breast augmentation surgery using an inframammary fold incision in Southeast Asian women: Patient-reported outcomes
Authors: Randquist Charles , Por Yong Chen , Yeow Vincent , Maglambayan Joy , Simonyi Susan
Published: July 2018

Background This analysis presents patient-reported outcomes of breast augmentation procedures performed in Singapore using an inframammary fold incision and the “5 Ps” best practice principles for breast augmentation. These data are the first of their kind in Southeast Asian patients.

Methods Through a retrospective chart review, patients who underwent primary breast augmentation with anatomical form-stable silicone gel breast implants using an inframammary fold incision were followed for ≥6 months postoperatively. The BREAST-Q Augmentation Module (scores standardized to 0 [worst] – 100 [best]) and Patient and Observer Scar Assessment Scale (POSAS; 1 [normal skin] to 10 [worst scar imaginable]) were administered. Responses were summarized using descriptive statistics. Patient-reported events were collected.

Results Twenty-two Southeast Asian patients (mean age, 35.1 years) completed ≥1 postoperative BREAST-Q and POSAS assessment and were assessed 11 months to 5.5 years postoperatively. The mean postoperative BREAST-Q satisfaction with breasts and psychosocial well-being scores were 69.2 and 84.0, respectively. The mean POSAS score for their overall opinion of the scar was 4.2; the mean scores for all scar characteristics ranged from 1.2 to 4.2. Over 90% of patients (20/22) said that they would recommend the procedure. Patient complaints following surgery included anisomastia (possibly pre-existing; n=2), sensory loss at the nipple (n=2) or around the nipple (n=3), scarring (n=4), and slight capsular contracture (n=1). No patients required reoperation.

Conclusions Southeast Asian patients reported high long-term satisfaction scores on the BREAST-Q scale and with their scar characteristics following breast augmentation using an inframammary fold incision, and nearly all said they would recommend this procedure. No reoperations were necessary in patients assessed for up to 5.5 years postoperatively.
Uso de información en docentes universitarios peruanos: un análisis de citas en trabajos de investigación (2010-2014)
Authors: Arakaki Mónica
Published: July 2018

El estudio aplica técnicas de análisis de citas para caracterizar el uso de información de los docentes de cuatro departamentos (Ciencias, Ingeniería, Ciencias Sociales y Humanidades) de la Pontificia Universidad Católica del Perú (PUCP). A partir de la producción académica de este grupo, publicada de 2010 a 2014 e indexada en Scopus, se obtuvo una muestra aleatoria de 217 documentos. De este conjunto, se extrajeron las referencias bibliográficas y se examinaron para determinar su cantidad, edad y tipo documental. Dado que las diferencias encontradas entre departamentos corroboran, en general, la literatura, se sostiene que el área disciplinar juega un rol importante en la conducta informativa de los académicos.
Philosophical Provocations
Authors: McGinn Colin
Published: July 2018

This book offers a series of short, sharp chapters that take on philosophical problems ranging from the concept of mind to paradox, altruism, and the relation between God and the Devil. Avoiding the usual scholarly apparatus and embracing a blunt pithiness, the book aims to achieve as much as possible in as short a space as possible while covering as many topics as possible. The author claims that much academic philosophical writing today is long, leaden, citation heavy, dense with qualifications, and painful to read. The chapters in this book are short, direct, and engaging, often challenging philosophical orthodoxy as they consider issues in mind, language, knowledge, metaphysics, biology, ethics, and religion. The book's author is looking for new ways to think about old problems. The book offers provocative invitations to think again.
Quiet Refusals: Androids as Others in Philip K. Dick’s Do Androids Dream of Electric Sheep?
Authors: Behroozi Moghadam Nima , Porugiv Farideh
Published: July 2018

This study intends to show how science fiction literature in general and Philip K. Dick’s novel Do Androids Dream of Electric Sheep? in particular can be read as a symptom of the postmodern era we live in. Taking as the main clues the ideas of the cultural theorist Slavoj Žižek, who combines Marxism with the psychoanalysis of Jacques Lacan, as well as his account of “postmodernism,” the study discusses how, contrary to what capitalism dubs a “post-ideological” era, we are more than ever dominated by ideology through its cynical function. It further examines (through such Lacanian concepts as fantasy, desire, objet petit a, and jouissance) the way late capitalistic ideology functions in Dick’s narrative, and discusses how the multiculturalist society prompts new forms of racism through abstract universalization which only accounts for and tolerates the other as long as they appear within the confines of that formal abstraction. Finally, it looks into how ideologies as such can be subverted from the Real point within the symbolic.