bluuebunny/crossref_metadata_2025_split huggingface dataset:
Painéis desenvolvidos com resíduo de gesso e resíduo de algodao: uma alternativa para o desenvolvimento sustentável
Authors: Kozechen Ana Paula , Álecio João Luiz Cuareli , Mello Rubya Vieira de Campos , Coelho Tânia Maria , Matsuda Celia Kimie 
Published: July 2016

Atualmente uma grande quantidade de resíduo é descartada no ambiente. Desta forma, o reaproveitamento de resíduos sólidos se torna um dos desafios da atualidade. Este estudo tem como principal objetivo, apresentar uma proposta de um novo produto, aproveitando os resíduos gerados do beneficiamento do algodão bem como o gesso descartado pela construção civil, permitindo uma melhora na qualidade de vida da população em geral, que sofre com descarte inadequado desses resíduos. Para comprovação da qualidade do novo produto, foram realizados ensaios para a caracterização da matéria-prima e desenvolvimento dos painéis conforme metodologia descrita. Os resultados preliminares mostraram que o protótipo do painel, apresentou-se com boa característica visual e com excelente resistência mecânica e ao ataque de fungos, apesar das condições favoráveis. Espera-se assim, chegar a uma alternativa passível de competição no mercado com produtos convencionais, que colabore com a sustentabilidade e seja de baixo custo.
Produção de novos conhecimentos nas universidades federais e as políticas públicas brasileiras recentes de CT&I
Authors: Chiarini Tulio , Rapini Marcia Siqueira , Vieira Karina Pereira 
Published: July 2016

Este artigo pretende analisar o possível desalinhamento entre as pesquisas científicas e tecnológicas realizadas nas universidades brasileiras com as políticas de CT&I. O objetivo, portanto, é apresentar as recentes políticas públicas de CT&I no Brasil e levantar algumas problemáticas dos esforços das pesquisas universitárias e verificar que não há uma coordenação entre as políticas de CT&I e as pesquisas universitárias. Assim, conforme será demonstrado, apesar do esforço na alocação de recursos financeiros para a investigação em áreas específicas que se enquadram os setores industriais e de prioridade da política científica e tecnológica do país, há uma concentração significativa de recursos humanos (pesquisadores) alocados em outros campos de pesquisa que não são caracterizados como estratégicos para o desenvolvimento do país. É possível refletir que o Brasil pode não estar produzindo quantidade relevante de recursos humanos necessários para competir nos mercados mundiais altamente tecnológicos. Isso é preocupante, uma vez que o país precisa de capital humano qualificado em áreas tecnológicas, para que possa realizar o catch-up com economias mais avançadas.
"Proper” Profiles. On Facebook’s investment in the autobiographical genre.
Authors: Fuchs Susanne 
Published: July 2016

The term “Fake profile” was invented by the press to designate Facebook-profiles that do not represent the life of their authors, but are instead used for depictions of alter egos or fictional characters. The following article investigates how the term “Fake profile” introduces a genre-designation that causes its alleged opposite, the “proper” profile to emerge. Put in conversation with Jacques Derrida’s discussion of the law of genre and Michel Foucault’s questioning of the referential function of the name of the author it becomes apparent, that the difference between “fake” and “proper” cannot be sustained; the signature of the author does not stabilize the relationship between the writer and the contents of the written text. It is ironically the company’s own attempt to guarantee the “authenticity” of the profiles established on the platform through a real name requirement, that draws attention to the impossibility of the fixation of this relation. The article examines in how far the suspension of genre-designations (fake and proper) causes the unease with which online-identities are generally regarded within the press and the Academic discourse. This article was submitted on July 22nd 2015 and published on May 24th 2916.
Automated Control of the Organic and Inorganic Composition of Aloe vera Extracts Using 1H NMR Spectroscopy
Authors: Monakhova Yulia B , Randel Gabriele , Diehl Bernd W K 
Published: July 2016

Abstract
Recent classification of Aloe vera whole-leaf extract by the International Agency for Research and Cancer as a possible carcinogen to humans as well as the continuous adulteration of A. vera's authentic material have generated renewed interest in controlling A. vera. The existing NMR spectroscopic method for the analysis of A. vera, which is based on a routine developed at Spectral Service, was extended. Apart from aloverose, glucose, malic acid, lactic acid, citric acid, whole-leaf material (WLM), acetic acid, fumaric acid, sodium benzoate, and potassium sorbate, the quantification of Mg2+, Ca2+, and fructose is possible with the addition of a Cs-EDTA solution to sample. The proposed methodology was automated, which includes phasing, baseline-correction, deconvolution (based on the Lorentzian function), integration, quantification, and reporting. The NMR method was applied to 41 A. vera preparations in the form of liquid A. vera juice and solid A. vera powder. The advantages of the new NMR methodology over the previous method were discussed. Correlation between the new and standard NMR methodologies was significant for aloverose, glucose, malic acid, lactic acid, citric acid, and WLM (P &lt; 0.0001, R2 = 0.99). NMR was found to be suitable for the automated simultaneous quantitative determination of 13 parameters in A. vera.
First Proposal of Minimum Information About a Cellular Assay for Regenerative Medicine
Authors: Sakurai Kunie , Kurtz Andreas , Stacey Glyn , Sheldon Michael , Fujibuchi Wataru 
Published: July 2016

Abstract

Advances in stem cell research have triggered scores of studies in regenerative medicine in a large number of institutions and companies around the world. However, reproducibility and data exchange among laboratories or cell banks are constrained by the lack of a standardized format for experiments. To enhance information flow in stem cell and derivative cell research, here we propose a minimum information standard to describe cellular assay data to facilitate practical regenerative medicine. Based on the existing Minimum Information About a Cellular Assay, we developed Minimum Information About a Cellular Assay for Regenerative Medicine (MIACARM), which allows for the description of advanced cellular experiments with defined taxonomy of human cell types. By using controlled terms, such as ontologies, MIACARM will provide a platform for cellular assay data exchange among cell banks or registries that have been established at more than 20 sites in the world.

Significance
Currently, there are more than 20 human cell information storage sites around the world. However, reproducibility and data exchange among different laboratories or cell information providers are usually inadequate or nonexistent because of the lack of a standardized format for experiments. This study, which is the fruit of collaborative work by scientists at stem cell banks and cellular information registries worldwide, including those in the U.S., the U.K., Europe, and Japan, proposes new minimum information guidelines, Minimum Information About a Cellular Assay for Regenerative Medicine (MIACARM), for cellular assay data deposition. MIACARM is intended to promote data exchange and facilitation of practical regenerative medicine.
The Functional Gait Assessment in People with Multiple Sclerosis
Authors: Forsberg Anette , Andreasson Malin , Nilsagård Ylva 
Published: July 2016

Background: Assessments of balance and walking are often performed in rehabilitation of people with multiple sclerosis (MS). The Functional Gait Assessment (FGA) is a test of walking balance including challenging items such as walking with a narrow base of support, with eyes closed, and backward. The aim was to investigate the validity (concurrent, discriminant, and known-groups) and sensitivity to change of the modified FGA in ambulatory individuals with MS.
Methods: A convenience sample of 87 individuals with MS was included (mean age, 54 years; 79% women). Concurrent and discriminant validity was investigated using tests of dynamic balance and the Multiple Sclerosis Walking Scale and Multiple Sclerosis Impact Scale (MSIS). Known-groups validity was investigated with self-reported number of falls and use of walking devices. Sensitivity to change was investigated with data from a group balance training study.
Results: The median FGA score was 15 (range, 1–26). Concurrent validity with tests of dynamic balance was moderate to strong, with the Timed Up and Go test having the highest correlation coefficient (rho = −0.74). Discriminant validity was shown with a low correlation coefficient with the MSIS psychological subscale (rho = 0.14). The FGA scores differed significantly for users of walking devices versus nonusers but not for reported falls. Sensitivity to change was moderate to low.
Conclusions: The FGA is a valid measure of balance during walking in people with MS, but further investigation is required for the ability to detect people at risk for falls.
Applicability of the ReproQ client experiences questionnaire for quality improvement in maternity care
Authors: Scheerhagen Marisja , van Stel Henk F. , Tholhuijsen Dominique J.C. , Birnie Erwin , Franx Arie , Bonsel Gouke J. 
Published: July 2016

Background.The ReproQuestionnaire (ReproQ) measures the client’s experience with maternity care, following the WHO responsiveness model. In 2015, the ReproQ was appointed as national client experience questionnaire and will be added to the national list of indicators in maternity care. For using the ReproQ in quality improvement, the questionnaire should be able to identify best and worst practices. To achieve this, ReproQ should be reliable and able to identify relevant differences.Methods and Findings.We sent questionnaires to 17,867 women six weeks after labor (response 32%). Additionally, we invited 915 women for the retest (response 29%). Next we determined the test–retest reliability, the Minimally Important Difference (MID) and six known group comparisons, using two scorings methods: the percentage women with at least one negative experience and the mean score. The reliability for the percentage negative experience and mean score was both ‘good’ (Absolute agreement = 79%; intraclass correlation coefficient = 0.78). The MID was 11% for the percentage negative and 0.15 for the mean score. Application of the MIDs revealed relevant differences in women’s experience with regard to professional continuity, setting continuity and having travel time.Conclusions.The measurement characteristics of the ReproQ support its use in quality improvement cycle. Test–retest reliability was good, and the observed minimal important difference allows for discrimination of good and poor performers, also at the level of specific features of performance.
HIV/STIs risks between migrant MSM and local MSM: a cross-sectional comparison study in China
Authors: Wu Jie , Wu Hong , Li Pengsheng , Lu Ciyong 
Published: July 2016

Background.Internal migration plays a significant role in China’s HIV epidemic. However, few studies have directly compared migrant men who have sex with men (MSM) with local MSM with regard to HIV/sexually transmitted infections (STIs) risks.Methods.We conducted a study in Guangzhou, China, with the aim of understanding the differences in HIV/STIs risks between migrant MSM and local MSM. A cross-sectional study was conducted among 273 migrant MSM and 249 local MSM in Guangzhou, China. Their behavioral and serologic data on HIV/syphilis were collected and compared between the two groups. A multivariate logistic regression was used to estimate the associations between HIV/STIs risks and migratory status.Results.Migrant MSM, compared to local MSM, have higher odds of reporting unprotected anal intercourse (UAI) (OR= 1.4; 95% CI [0.9–2.0]) and having multiple homosexual partners (OR= 1.2; 95% CI [0.8–1.8]). A lower rate of condom use at homosexual debut was reported in migrant MSM than in local MSM (OR= 0.7; 95% CI [0.5–0.9]). Migrant MSM have less odds of reporting HIV/STIs testing in the previous 6 months relative to local MSM (OR= 0.5; 95% CI [0.4–0.8]). In addition, migrant MSM demonstrated a lower level of HIV knowledge than local MSM (OR= 0.4; 95% CI [0.2–0.8]).Conclusion.Migrant MSM are more likely to engage in sexual risk behaviors, report a lower level of HIV knowledge and have less access to HIV/STIs testing. Further comprehensive interventions targeting migrant MSM are urged.
On the discrimination between magnetospheric and ionospheric contributions on the ground manifestation of sudden impulses
Authors: Piersanti M. , Villante U. 
Published: July 2016

AbstractThe definite identification of the characteristics of the geomagnetic response to solar wind pressure changes represents an interesting element of magnetospheric dynamics that is also important in the Space Weather context. In the present analysis the aspects of the global response in ground‐based observations have been examined for three case events, discriminating between magnetospheric and ionospheric contributions in ground manifestations of sudden impulses (SI). The separation between the magnetospheric and ionospheric contributions is obtained by a comparison between the observations at geostationary orbit and the predictions of the Tsyganenko and Sitnov (2005) model for the different magnetospheric current systems (from the magnetopause, ring current, tail current, etc.). The magnetopause current is the key element for the SI variation observed at geosynchronous orbit in a wide local time sector and practically represents the DL field of magnetospheric origin. The expected DL field is then subtracted, at each ground station, from the experimental measurements, in order to obtain a confident estimate of the residual DP field at different latitudes and local times. After evaluating the contribution of the field‐aligned currents, we estimate the ionospheric current flow pattern of the preliminary and main impulses (PIIC and MIIC). The patterns of PIIC and MIIC fields are consistent with those proposed by Araki (1994). Some “anomalous” ground manifestations can be interpreted in terms of the combined effect of the irregular configuration of the boundary of the vortices of the ionospheric currents, of the rapid temporal evolution of the entire pattern, and of the station rotation beneath the pattern.
Steepening of waves at the duskside magnetopause
Authors: Plaschke F. , Kahr N. , Fischer D. , Nakamura R. , Baumjohann W. , Magnes W. , Burch J. L. , Torbert R. B. , Russell C. T. , Giles B. L. , Strangeway R. J. , Leinweber H. K. , Bromund K. R. , Anderson B. J. , Le G. , Chutter M. , Slavin J. A. , Kepko E. L. 
Published: July 2016

AbstractSurface waves at the magnetopause flanks typically feature steeper, i.e., more inclined leading (antisunward facing) than trailing (sunward facing) edges. This is expected for Kelvin‐Helmholtz instability (KHI) amplified waves. Very rarely, during northward interplanetary magnetic field (IMF) conditions, anomalous/inverse steepening has been observed. The small‐scale tetrahedral configuration of the Magnetospheric Multiscale spacecraft and their high time resolution measurements enable us to routinely ascertain magnetopause boundary inclinations during surface wave passage with high accuracy by four‐spacecraft timing analysis. At the dusk flank magnetopause, 77%/23% of the analyzed wave intervals exhibit regular/inverse steepening. Inverse steepening happens during northward IMF conditions, as previously reported and, in addition, during intervals of dominant equatorial IMF. Inverse steepening observed under the latter conditions may be due to the absence of KHI or due to instabilities arising from the alignment of flow and magnetic fields in the magnetosheath.
Barotropic kinetic energy and enstrophy transfers in the atmosphere
Authors: Chemke R. , Dror T. , Kaspi Y. 
Published: July 2016

AbstractThe midlatitude atmosphere is characterized by turbulent eddies that act to produce a depth‐independent (barotropic) mean flow. Using the NCEP (National Centers for Environmental Prediction) Reanalysis 2 data, the latitudinal dependence of barotropic kinetic energy and enstrophy are investigated. Most of the barotropization takes place in the extratropics with a maximum value at midlatitudes, due to the latitudinal variations of the static stability, tropopause height, and sphericity of the planet. Barotropic advection transfers the eddy kinetic energy to the zonal mean flow and thus maintains the barotropic component of the eddy‐driven jet. The classic description of geostrophic turbulence exists only at high latitudes, where the quasi‐geostrophic flow is supercritical to baroclinic instability; the eddy‐eddy interactions carry both the barotropization of eddy kinetic energy upscale to the Rhines scale and the barotropization of eddy potential enstrophy downscale.
Ion Bernstein instability dependence on the proton‐to‐electron mass ratio: Linear dispersion theory
Authors: Min Kyungguk , Liu Kaijun 
Published: July 2016

AbstractFast magnetosonic waves, which have as their source ion Bernstein instabilities driven by tenuous ring‐like proton velocity distributions, are frequently observed in the inner magnetosphere. One major difficulty in the simulation of these waves is that they are excited in a wide frequency range with discrete harmonic nature and require time‐consuming computations. To overcome this difficulty, recent simulation studies assumed a reduced proton‐to‐electron mass ratio, mp/me, and a reduced light‐to‐Alfvén speed ratio, c/vA, to reduce the number of unstable modes and, therefore, computational costs. Although these studies argued that the physics of wave‐particle interactions would essentially remain the same, detailed investigation of the effect of this reduced system on the excited waves has not been done. In this study, we investigate how the complex frequency, ω = ωr+iγ, of the ion Bernstein modes varies with mp/me for a sufficiently large c/vA (such that
) using linear dispersion theory assuming two different types of energetic proton velocity distributions, namely, ring and shell. The results show that low‐ and high‐frequency harmonic modes respond differently to the change of mp/me. For the low harmonic modes (i.e., ωr∼Ωp), both ωr/Ωp and γ/Ωp are roughly independent of mp/me, where Ωp is the proton cyclotron frequency. For the high harmonic modes (i.e.,
, where ωlh is the lower hybrid frequency), γ/ωlh (at fixed ωr/ωlh) stays independent of mp/me when the parallel wave number, k∥, is sufficiently large and becomes inversely proportional to (mp/me)1/4 when k∥ goes to zero. On the other hand, the frequency range of the unstable modes normalized to ωlh remains independent of mp/me, regardless of k∥.
Using multifractals to evaluate oceanographic model skill
Authors: Skákala Jozef , Cazenave Pierre W. , Smyth Timothy J. , Torres Ricardo 
Published: July 2016

AbstractWe are in an era of unprecedented data volumes generated from observations and model simulations. This is particularly true from satellite Earth Observations (EO) and global scale oceanographic models. This presents us with an opportunity to evaluate large‐scale oceanographic model outputs using EO data. Previous work on model skill evaluation has led to a plethora of metrics. The paper defines two new model skill evaluation metrics. The metrics are based on the theory of universal multifractals and their purpose is to measure the structural similarity between the model predictions and the EO data. The two metrics have the following advantages over the standard techniques: (a) they are scale‐free and (b) they carry important part of information about how model represents different oceanographic drivers. Those two metrics are then used in the paper to evaluate the performance of the FVCOM model in the shelf seas around the south‐west coast of the UK.
Changes and influencing factors in biogenic opal export productivity in the Bering Sea over the last 4.3 Ma: Evidence from the records at IODP Site U1340
Authors: Zhang Qiang , Chen Muhong , Zhang Lanlan , Su Xiang , Xiang Rong 
Published: July 2016

AbstractWe reconstructed changes in biogenic opal export productivity (BOEP) in the southern Bering Sea (BS) over the last ∼4.3 Ma, based on mass accumulation rate (MAR) of biogenic opal from Integrated Ocean Drilling Program (IODP) Site U1340. The results show that the BOEP in the BS was high and variable between ∼4.3 and ∼1.9 Ma, extremely low and relatively stable from ∼1.9 to ∼1.1 Ma, and then fluctuated frequently (generally high during interglacials and low during glacials) during the last ∼1.1 Ma. One interval of enhanced BOEP from ∼4.3 to ∼3.2 Ma is a response to the Late Miocene‐Early Pliocene “Biogenic Bloom Event.” Another interval from ∼2.8 to ∼1.9 Ma correlates with global opal burial shifting from high‐latitude oceans to upwelling‐influenced regions following the intensification of the Northern Hemisphere Glaciation (NHG). Whereas, the increase in BS opal export productivity during the last ∼1.1 Ma tends to be a “local” phenomenon. Overall, the BOEP shows a similar trend and good correspondence to the input of the Alaskan Stream (AS), which can be traced using the Na2O/K2O ratio. We thus conclude that the AS may be the direct, and primary factor on BOEP variability in the BS during the last ∼4.3 Ma. In addition, although the poor correlation between opal MAR and volcanic glass suggests that BOEP variability was not controlled by long‐term variations in the volcanism or ash abundance, increased ash abundance indicated by high contents of volcanic glasses was also a possible reason for enhanced BOEP during the period from ∼4.3 to ∼3.2 Ma and the last ∼0.5 Ma.
Organocatalytic [3+2] Cycloadditions of Barbiturate‐Based Olefins with 3‐Isothiocyanato Oxindoles: Highly Diastereoselective and Enantioselective Synthesis of Dispirobarbiturates
Authors: Zhao Hong‐Wu , Tian Ting , Pang Hai‐Liang , Li Bo , Chen Xiao‐Qin , Yang Zhao , Meng Wei , Song Xiu‐Qing , Zhao Yu‐Di , Liu Yue‐Yang 
Published: July 2016

AbstractCatalyzed by a Cinchona‐based thiourea, the [3+2] cycloadditions of barbiturate‐based olefins with 3‐isothiocyanatooxindoles proceeded readily, and furnished dispirobarbiturates in excellent chemical yields with excellent diastereo‐ and enantioselectivities. The absolute configuration of dispirobarbiturates was firmly confirmed by an X‐ray single crystal structure analysis. A reaction mechanism was proposed to account for the enantioselective formation of dispirobarbiturates.magnified image
Efficient Synthesis of Unsaturated δ‐ and ε‐Lactones/Lactams by Catalytic Cycloisomerization: When Pt Outperforms Pd
Authors: Ke Diandian , Espinosa Noel Ángel , Mallet‐Ladeira Sonia , Monot Julien , Martin‐Vaca Blanca , Bourissou Didier 
Published: July 2016

AbstractPlatinum pincer complexes featuring an SCS indenediide backbone have been prepared and evaluated in the catalytic cycloisomerization of alkynoic acids and N‐tosyl alkynylamides. One of the platinum complexes significantly outperforms its palladium analogue for the formation of 6‐ and 7‐membered rings. The catalytic system takes advantage of the alkynophilicity of Pt and of the non‐innocent character of the indenediide framework. Like for Pd, the catalytic performance is significantly improved by using an H‐bond donor additive such as pyrogallol. For the first time, a large variety of ω‐unsaturated δ‐ and ε‐lactones/lactams could be prepared with high selectivities and in very good yields.magnified image