Miracle-dz/UniFAR-FTUs huggingface dataset:
Architectures à base de nanostructures de carbone et TiO₂pour le photovoltaïque

Le photovoltaique est une energie renouvelable pouvant aider a lutter contre le rechauffement climatique et l’epuisement des ressources fossiles utilisees pour la production d’energie. La filiere emergente a base de materiaux perovskites (photovoltaique de 3eme generation) est tres prometteuse car elle utilise des materiaux abondants et faciles a mettre en œuvre (technologie bas-cout) et a montre de plus des rendements record competitifs en peu de temps. Il reste cependant des verrous technologiques a lever afin de pouvoir developper cette technologie a grande echelle. L’un deux consiste a ameliorer la couche de TiO₂ qui transporte les electrons et dont les defauts limitent les performances et la duree de vie des cellules photovoltaiques perovskites. Ce travail propose l’utilisation de materiaux a base de nanostructures de carbone et de TiO₂ pour ameliorer le transport et la collecte des electrons au sein de ces cellules photovoltaiques et ainsi ameliorer leur rendement. Pour cela, la pyrolyse laser, technique singuliere de production continue de nanoparticules, a ete adaptee pour l’elaboration de nanocomposites TiO₂/graphene aux proprietes controlees. Ces materiaux ont ete caracterises puis integres aux cellules photovoltaiques perovskites qui ont demontre une meilleure efficacite en presence de graphene. Par ailleurs, ce travail presente une architecture innovante a base de nanotubes de carbone alignes verticalement, en vue d’une application pour la collecte des electrons photo-generes des cellules photovoltaiques perovskites. Les materiaux carbones presentent donc de fortes potentialites pour l’optoelectronique, et plus particulierement pour le photovoltaique de 3eme generation.
Research on main mechanisms of MIRI and related drug therapy

Ischemia-reprefusion injury( IRI) often occurred after ischemia myocardial is treated. When IRI occurred,the damaging degree of myocardial aggravated and infarction area expanded. The phenomenon is associated with a variety of mechanisms,including: overloading calcium,increased oxygen free radicals,inflammation,etc. With the improvement of MIRI's treating technology,treatments during MIRI become a key to treat ischemia myocardial. So research of drugs for preventing or treating disease during MIRI has become the key point. Common mechanisms of drugs include: reducing calcium overloaded,anti-inflammation,resisting oxygen free radicals and improving energy meatabolism,etc. This article aims to summarize different pathologic mechanisms of MIRI and recent research of related drugs.
Fullerenes as solitons in chiral model of graphene

Taking into account the sp2- hybridization effect for valence electrons in carbon atoms, we introduce a unitary matrix U as an order parameter and suggest a scalar chiral model of graphene for the description of graphene-like configurations. Using the well-known hedgehog ansatz for modeling Fullerene C60, we estimate the polarizability of a single Fullerene specie in a uniform external electric field. Finally, we use this result for calculating the parameters of the van der Waals potential for the two interacting Fullerene species.
EXPERIMENTAL STUDY THE EFFECT ANGLE OF BLADE ON THE ELECTRICAL POWER OUTPUT OF PROPELLER PICOHYDRO TURBINE

This study aimed to analyze the effect of angle of blade on the horizontal flow to the performance of the propeller water turbine. The experiments were performed using several test parameters including the angle of blade on the variation mass flow rate of water. With potential head 2 meters and variated turbine blade angle to achieved optimal power generated. The result showed that the variation of angle of blade with 300 angles and 11.6 l/s mass flow rate of water was the best variation to improve the performance of the propeller water turbine. The best variation can generated 32 Watt of electric power.
The Effects of Some Thermo-physical Properties of Fluid on Heat and Mass Transfer Flow Past Semi-infinite Moving Vertical Plate with Viscous Dissipation

This paper examines the effect of some thermo-physical properties of fluid on heat and mass transfer flow past semi-infinite moving vertical plate. The fluid considered is optically thin such that the thermal radiative heat loss on the fluid is modeled using Rosseland approximation.The governing partial differential equations in dimensionless forms are solved numerically using the Method of Lines (MOL). The velocity, the temperature, and the concentration profiles of the flow are discussed numerically and presented. Numerical values of the skin-friction coefficient, Nusselt number, and Sherwood number at the plate are discussed numerically for various values of thermo-physical parameters and they are presented by the tables.The result shows that an increase in thermal radiation causes increase in velocity and temperature profiles of the flow, thus, Original Research Article Durojaye et al.; JERR, 8(2): 1-11, 2019; Article no.JERR. 50730 2 the thermal radiation intensifies the convective flow. Also, an increase in Soret number causes increase in velocity and concentration profiles of the flow while the effect is negligible on temperature profile distribution. Similarly, an increase in Dufour number causes increase in velocity and temperature profiles of the flow.
Alluvial channel response to environmental perturbations

The sensitivity of fluvial systems to tectonic and climatic boundary conditions allows us to use the geomorphic and stratigraphic records as quantitative archives of past climatic and tectonic conditions. Thus, fluvial terraces that form on alluvial fans and floodplains as well as the rate of sediment export to oceanic and continental basins are commonly used to reconstruct paleoenvironments. However, we currently lack a systematic and quantitative understanding of the transient evolution of fluvial systems and their associated sediment storage and release in response to changes in base level, water input, and sediment input. Such knowledge is necessary to quantify past environmental change from terrace records or sedimentary deposits and to disentangle the multiple possible causes for terrace formation and sediment deposition. Here, we use a set of seven physical experiments to explore terrace formation and sediment export from a single, braided channel that is perturbed by changes in upstream water discharge or sediment supply, or through downstream base-level fall. Each perturbation differently affects (1) the geometry of terraces and channels, (2) the timing of terrace cutting, and (3) the transient response of sediment export from the basin. In general, an increase in water discharge leads to near-instantaneous channel incision across the entire fluvial system and consequent local terrace cutting, thus preserving the initial channel slope on terrace surfaces, and it also produces a transient increase in sediment export from the system. In contrast, a decreased upstream sediment-supply rate may result in longer lag times before terrace cutting, leading to terrace slopes that differ from the initial channel slope, and also lagged responses in sediment export. Finally, downstream base-level fall triggers the upstream propagation of a diffuse knickzone, forming terraces with upstream-decreasing ages. The slope of terraces triggered by base-level fall mimics that of the newly adjusted active channel, whereas slopes of terraces triggered by a decrease in upstream sediment discharge or an increase in upstream water discharge are steeper compared to the new equilibrium channel. By combining fillterrace records with constraints on sediment export, we can distinguish among environmental perturbations that would otherwise remain unresolved when using just one of these records.
Fuzzy c-means and gath-geva methods in clustering districts based on human development index (hdi) in south sulawesi

District grouping in South Sulawesi based on the Human Development Index (HDI) indicators needs to be done as a material for planning and evaluating the targets of government work programs. This grouping is based on dominant indicators of the high and low HDI. The value of the HDI indicator needs to be considered so that the achievement of each indicator is known. Statistical analysis that can be used to group districts that have similarities is cluster analysis. The method that is currently developing is fuzzy clustering analysis, which classifies objects using certain membership degrees. Fuzzy clustering algorithm that can be used is Fuzzy C-means (FCM). Another method of fuzzy clustering analysis developed further is Gath Geva (GG), which is able to detect groups with different forms. In this study, the fuzzy clustering process on the FCM and GG methods with the same parameters and shows that the GG method is better than the FCM method. This conclusion is based on a total of 1000 iterations. The GG method gives an objective function value smaller than FCM, besides it gives a faster- conferencing iteration result.
Knowledge gaps regarding frugivorous ecological networks between birds and plants in Brazil

Vegetation stability, resilience and regeneration can be achieved by various ecological processes, the most important of which is seed dispersion. Among animal groups, birds have the largest number of frugivorous species in the Neotropics. The aim of this study was to conduct a bibliometric analysis to detect general patterns and discover knowledge gaps in order to identify future directions for research into bird frugivory in Brazil. A gap analysis was carried out by obtaining 77 articles published online and evaluating their data in different ways. The results revealed that research on bird frugivory in Brazil was published in 33 scientific journals and financed by 18 national and international funding agencies. The number of publications increased over time, with the majority of them reporting research carried out in biomes of Central-West and South regions of Brazil. The most important bird species in frugivorous interactions in the most studied biomes were identified, including some non-native species. Our results corroborate several other studies, which together demonstrate a lack research on frugivorous interactions in the North and Northeast of Brazil, where there are very important biomes for conservation, such as the Amazon and Caatinga, for which knowledge of seed dispersal processes is needed.
Retroceso del frente glaciar Gajap, Pastoruri y Broggi Cordillera Blanca (Perú)

El glaciar Broggi localizado hacia el norte de la Cordillera Blanca; se accede, desde Huaraz, via carretera asfaltada, hasta la ciudad de Yungay (65 km) para luego tomar el desvio hacia la laguna Llanganuco, por carretera afirmada (35 km); y a partir de alli por un camino de herradura de 3-4 horas para llegar al pie del glaciar. Los glaciares Pastoruri y Gajap estan emplazados al sur de la Cordillera Blanca; se accede, desde Huaraz, via carretera asfaltada hasta la localidad de Pachacoto (50 km) para luego tomar el desvio hacia Pastoruri y Gajap (35 y 40 km) respectivamente; y el acceso hasta la zona de trabajo es, en promedio, media hora.
Water governmentalities: The shaping of hydrosocial territories, water transfers and rural–urban subjects in Latin America

With increasing water consumption and pollution in cities and expanding urban areas, impacts on rural areas as water extraction and waste disposal zones are intensifying. To unravel these hydro-territorial dynamics, this paper studies the intersecting and overlapping Foucauldian ‘arts of government’ (‘governmentalities’) deployed to convey water from rural to urban areas in three Latin American cities: Lima (Peru), San Luis Potosí (Mexico) and Bucaramanga (Colombia). We examine conventional (cemented) water transfers, broadly promoted payment for ecosystem services schemes and their conjunction, combining scholarship about hydrosocial territories and governmentality. We demonstrate how particular urban-based imaginaries about rural areas, their inhabitants, norms, practices and identities become embedded in governmentality schemes, and how these are justified, materialized and sustained, producing particular entwined rural–urban subjectivities. We explore how these are accepted, negotiated or contested. Our application of the governmentalities framework to analyze the material and socio-political effects of rural–urban water transfers contributes to existing scholarship on the (re)shaping of rural–urban hydrosocial territorialities showing the ‘hidden’ and ‘invisible’ workings of subjectification. It also contributes to the literature on governmentalities by scrutinizing the importance of technology (including physical infrastructure) in creating rural subjects.
Cognitive emotion regulation and personality: an analysis of individual differences in the neural and behavioral correlates of successful reappraisal

Abstract A common and mostly effective emotion regulation strategy is reappraisal. During reappraisal, activity in cognitive control brain regions increases and activity in brain regions associated with emotion responding (e.g., the amygdala) diminishes. Immediately after reappraisal, it has been observed that activity in the amygdala increases again, which might reflect a paradoxical aftereffect. While there is extensive empirical evidence for these neural correlates of emotion regulation, only few studies targeted the association with individual differences in personality traits. The aim of this study is to investigate these associations more thoroughly. Seventy-six healthy participants completed measures of broad personality traits (Big Five, Positive and Negative Affect) as well as of more narrow traits (habitual use of emotion regulation) and performed an experimental fMRI reappraisal task. Participants were instructed to either permit their emotions or to detach themselves from the presented negative and neutral pictures. After each picture, a relaxation period was included. Reappraisal success was determined by arousal ratings and activity in the amygdala. During reappraisal, we found activation in the prefrontal cortex and deactivation in the left amygdala. During the relaxation period, an immediate aftereffect was found in occipital regions and marginally in the amygdala. Neither personality traits nor habitual use of emotion regulation predicted reappraisal success or the magnitude of the aftereffect. We replicated typical activation and deactivation patterns during intentional emotion regulation and partially replicated the immediate aftereffect in the amygdala. However, there was no association between personality traits and emotion regulation success.
Developing Meteoric Water Lines for Iran Based on Air Masses and Moisture Sources

Iran is a semi-arid to arid country that faces a water shortage crisis. Its weather is also influenced by various air masses and moisture sources. Therefore, applying accurate stable isotope techniques to investigate Iran’s precipitation characteristics and developing Iran meteoric water lines (MWLs) as an initial step for future isotope hydrology studies is vitally important. The aim of this study was to determine the MWLs for Iran by considering air masses and dominant moisture sources. The Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model backward analysis was used to determine the trajectories of various air masses in 19 weather stations in Iran and the areas covered by them. δ18O and δ2H contents were obtained for precipitation events from 32 stations in Iran and four in Iraq. Stable isotope samples were gathered from different sources and analyzed in various laboratories across the world. Three MWLs for north of Iran, south Zagros, and west Zagros, were determined based on the locations of dominant air masses and moisture sources. The proposed MWLs were validated by comparison with fresh karstic spring isotope data across Iran. In addition, Iran main moisture sources MWLs were used to determine dominant moisture sources role in karstic springs and surface water resources recharge.
Use of electrospun fiber membrane as the screen printing stencil for high definition printing

Conventional screen stencils are known for having micron scale screen mesh, which restricts definition of the printed pattern, and subsequently, the development of fine line screen printing technology. In contrast, electrospun fiber membranes are characterized by a consistent mesh size, which have the ability to reduce down to hundreds of nanometers. In this study, we produced a screen stencil by combining electrospun PVA/EG fiber membrane with a commercial printing screen stencil. The fiber diameter, porosity, hydrophilicity, and thickness of the PVA/EG fiber membrane were controlled by the ethylene glycol content, crosslinking time, and spinning time. The effects of membrane’s morphology and structure on image definition of printed pattern were investigated. Results showed that the printed pattern depicted the higher definition when the electrospun fiber membrane had the higher porosity (83.67%), smaller fiber diameter (0.1859 μm) and uniform diameter distribution. With respect to hydrophilicity and thickness of membrane, both had stronger influence on the flux of printed paste, the better hydrophilicity and lower thickness membrane were, the darker color and higher definition images obtained.
The use of cement leftovers from the hollow of spun piles as an additive in self-compacting concrete.

Spun piles have been used widely by developing countries, including Malaysia, to construct the foundation of most construction projects. A spun pile is a reinforced precast and prestressed concrete that is compacted in a mould through spinning compaction. The spinning compaction produces cement leftovers in the hollow part of spun piles that can be added to concrete mixtures as an additive. The cement leftovers of spun piles were used as an additive in cement in range of 0%, 10%, 20% and 30% (equal percentages). The resulting compressive strength after curing periods of 7 days and 28 days were presented to investigate the properties of self-compacting concrete containing cement leftovers from the spun piles. Other properties investigated include the physical properties of fresh concrete and water absorption. The results indicated that higher compressive strength and lower water absorption were achieved by the concrete samples containing cement leftovers compared to controlled concrete. ��Z��'�=
Bone Morphogenetic Protein Use in Anterior Cervical Spine Surgery: A Review of Current Literature Concerning Indications, Safety, and Efficacy

The application of recombinant human bone morphogenetic protein in the anterior cervical spine is controversial. Although recombinant human bone morphogenetic protein has been shown to produce fusion rates as high and likely higher than the “gold standard” autogenous iliac crest and fibula grafts (especially for multilevel fusions), complications associated with its use have been reported. These have included hematoma or seroma formation requiring repeat surgery, severe dysphagia, and anterior neck swelling requiring prolonged hospitalization and treatment. Although it is likely that with appropriate dosage, carrier, placement, and containment, the risk of these complications is not high, surgeons should be aware of the issues surrounding bone morphogenetic protein use in the cervical spine and must be prepared to prevent and/or manage the potentially life-threatening complications associated with its use.
Englacial Pore Water Localizes Shear in Temperate Ice Stream Margins

The margins of fast‐moving ice streams are characterized by steep velocity gradients. Some of these gradients cannot be explained by a temperature‐dependent viscosity alone. Laboratory data suggest that water in the ice‐grain matrix decreases the ice viscosity; we propose that this causes the strong localization of shear in temperate ice stream margins. However, the magnitude of weakening and its consequences for ice stream dynamics are poorly understood. Here we investigate how the coupling between temperate ice properties, ice mechanics, and drainage of melt water from the ice stream margin alters the dynamics of ice streams. We consider the steady‐state ice flow, temperature, water content, and subglacial water drainage in an ice stream cross section. Temperate ice dynamics are modeled as a two‐phase flow, with gravity‐driven water transport in the pores of a viscously compacting and deforming ice matrix. We find that the dependence of ice viscosity on meltwater content focuses the temperate ice region and steepens the velocity gradients in the ice stream margin. It provides a possible explanation for the steep velocity gradients observed in some ice stream shear margins. This localizes heat dissipation there, which in turn increases the amount of meltwater delivered to the ice stream bed. This process is controlled by the permeability of the temperate ice and the sensitivity of ice viscosity to meltwater content, both of which are poorly constrained properties.
The Team Concept

The delivery of outpatient parenteral antibiotic therapy is a team effort that, at minimum, requires a physician, a nurse, and a pharmacist. Other specialists may be added as needed. The team may be structured in severed different ways, but two basic models emerge: physician-directed and nonphysician-directed. Whatever the structure, the physician should maintain a leadership role in the care of the patient.
Effects of Resistance Training on NRG1 Express of Heart and Skeletal Muscle in Different Gender Rats with Myocardial Infarction

Objective: The purpose of this study was to discuss the effect of resistance training on cardiac structure and function,skeletal muscle cells size,NRG1 expression in male and female rats with myocardial infarction( MI). Methods: Male and female 3- month old sprague-dawley rats were randomly divided into six groups( n =8) : male sham-operated group( MS),male sedentary MI group( MMI),male MI with resistance training group( MMR),female sham-operated group( FS),female sedentary MI group( FMI) and female MI with resistance training group( FMR). Rats in MMR and FMR underwent 4- week resistance training. At the end of the 4-week training,cardiac function was tested by hemodynamics,morphological change was observed after histological staining,and NRG1,Erb B2 /4 were detected by Western blotting or immunohistochemical measurement. Results:MI rats' cardiac function decreased,their myocardial tissue was replaced by fibrosis,also gastrocnemius muscle mass and cellular cross-sectional area reduced in different degree. Resistance training improved their cardiac function,increased gastrocnemius muscle mass and cellular cross-sectional area,up-regulated NRG1 protein expression of cardiac and skeletal muscle in male MI rats,Erb B2 and Erb B4 expressions were both up-regulated in male and female MI rats( P 0. 05,P 0. 01). Conclusion: Resistance training could promote cardiac function and skeletal muscle growth in female and male MI rats,increase NRG1 expression and its receptors in myocardial tissue and gastrocnemius muscle,and these changes are different between male and female rats.