Miracle-dz/UniFAR-FTUs huggingface dataset:
Structure and bi-magnetism of nanocomposites and nanoalloys synthesized by reduction of (Co, Ni) Fe2O4 nano-ferrites.

Structural and magnetic properties of CoFe2O4, NiFe2O4 nano-ferrites, CoFe2O4 /CoFe2, NiFe2O4/NiFe bi-magnetic nanocomposites and CoFe2, NiFe alloys were studied. The nano-ferrites were synthesised using the glycol-thermal method at 200 ◦C for 6 hours. The nanocomposites and alloys were produced by the reduction of the ferrites using different amounts of activated charcoal. The reduction reaction was performed at 900 ◦C for 3 hours in high purity flowing argon atmosphere. Complete reduction yields the alloy phases while partial reduction produces the nanocomposites. The samples were studied using X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM), high resolution scanning electron microscopy (HRSEM), Fe Mössbauer spectroscopy, LakeShore vibrating sample magnetometer and a mini cryogen free system. XRD measurements of the nano-ferrites showed a single phase spinel structure with average crystallite sizes of about 10 nm. the CoFe2 alloy was obtained at an activated charcoal to ferrite molar ratio nC = 6 while the NiFe alloy was obtained at nC = 5. XRD results of the reduced samples of NiFe2O4 showed the coexistence of bcc α-Fe and fcc γ-Fe lattice structures for NiFe alloy. The HRTEM and HRSEM measurements of all the reduced samples showed clear differences between the morphology of the parent nano-ferrites and the reduced samples. Fe Mössbauer spectra measurements of the reduced samples showed the transformation of the spinel structure to the alloy phase. The presence of mixed phases in the nanocomposites was revealed. A small amount of mixed phase in CoFe2 and NiFe alloys which was not detected by XRD was revealed by Mössbauer measurement for nC = 6 and nC = 5 respectively. The Mössbauer fits showed that Fe was reduced to Fe with lower magnetic hyperfine fields observed in the reduced samples. High field (50 kOe) magnetization measurements at room temperature for CoFe2O4/CoFe2 nanocomposite show significant enhancement of saturation magnetization from 63 emu/g of the parent nano-ferrite to 221 emu/g at nC = 5. In the NiFe2O4/NiFe nanocomposite the in magnetization increased from 57 emu/g to 141 emu/g at nC = 6. Low temperature measurements performed on the nanocomposites exhibited higher magnetizations. The coercivity of the fully reduced samples of the nano-ferrites were observed to be less dependent on temperature.
Cellular heterogeneity results from indirect effects under metabolic tradeoffs

The emergence of multicellularity requires the coexistence of diverse cellular populations displaying cooperative relationships. This enables long-term persistence of cellular consortia, particularly under environmental constraints that challenge cell survival. Toxic environments are known to trigger the formation of multicellular consortia capable of dealing with waste while promoting cell diversity as a way to overcome selection barriers. In this context, recent theoretical studies suggest that an environment containing both resources and toxic waste can promote the emergence of complex, spatially distributed proto-organisms exhibiting division of labor and higher-scale features beyond the cell-cell pairwise interactions. Some previous non-spatial models suggest that the presence of a growth inhibitor can trigger the coexistence of competitive species in an antibiotic-resistance context. In this paper we further explore this idea using both mathematical and computational models taking the most fundamental features of the proto-organisms interactions. It is shown that this resource-waste environmental context, in which both species are lethally affected by the toxic waste and metabolic tradeoffs are present, favours the maintenance of diverse populations. A spatial, stochastic extension confirms our basic results. The evolutionary and ecological implications of these results are outlined.
Past climate changes and strong oceanographic barriers structured low‐latitude genetic relics for the golden kelp Laminaria ochroleuca

Drivers of intraspecific biodiversity include past climate‐driven range shifts and contemporary ecological conditions mediating connectivity, but these are rarely integrated in a common comprehensive approach. This is particularly relevant for marine organisms, as ocean currents strongly influence population isolation or connectivity, keeping or diluting the signatures left by past climates. Here we ask whether the coupling between past range shifts and contemporary connectivity explain the extant gene pools of Laminaria ochroleuca, a large brown alga structuring important marine forests from shallow to deep infralittoral grounds.
Perspectives on the Controlled Propagation, Augmentation, and Reintroduction of Freshwater Mussels (Mollusca: Bivalvia: Unionoida)

ABSTRACT Controlled propagation, augmentation, and reintroduction (PAR) of rare and endangered aquatic organisms has become a priority action for recovery and delisting, and in many cases is an action of “last resort” to either restore or maintain existing populations. The guiding principle of PAR efforts should be to avoid harming existing populations of congeneric or nontarget species and also minimize risks to extant populations and habitats. Controlled PAR of freshwater mussels should not be a long-term management strategy conducted in perpetuity and should not be used as a substitute for recovery tasks such as habitat restoration or addressing the causes of endangerment. The determination to pursue controlled PAR for freshwater mussels should follow a thorough evaluation of the status of existing wild populations, an agreement that PAR in the historic range is needed, and a conclusion that suitable habitat for long-term success is present. The primary purpose of any efforts to augment or reintroduce animals should be to establish free-ranging wild populations. Concomitant with this goal is the distinct possibility that these activities can represent appreciable genetic or ecological risks to resident animals, both nontarget taxa and wild conspecifics. To maintain the integrity of the fauna, communities, and ecosystems it is imperative that these risks be carefully considered before conducting controlled PAR. In this paper we pose several questions that we believe are important to consider before initiating PAR of freshwater mussels. We also recommend actions, some already used at individual facilities or by agencies, that we believe will aid in developing a more uniform approach to controlled PAR and safeguarding the ecological and genetic integrity of freshwater mussel communities.
Do Islamic equity indexes outperform their conventional counterparts during normal times and global financial crises?

This paper compares the performance of Islamic and conventional Dow Jones stock markets for twenty sectors during the recent preand post-crises periods, namely the global financial crisis (GFC) and the European sovereign debt crisis (ESDC). We apply different performance measures such as the Sharpe, Roy, Treynor, Omega, Information ratios, and the Jensen Alpha based on C, and the Alpha Jensen based on the CAPM-EGARCH model. Results using the Information ratio (Alpha Jensen), conventional (Islamic) equity returns dominate Islamic (conventional) equity returns during the full sample period. However, the pre-crises periods are dominated by higher conventional equity returns, irrespective of the employed return measures. During the post-crises periods, Islamic equity returns outperform their conventional counterparts in most cases. During the GFC and ESDC, Islamic equity returns dominate their conventional counterparts. These results are important for global investors to benefit from diversified investment opportunities.
LOS PRODUCTOS Y SUBPRODUCTOS VEGETALES, ANIMALES Y AGROINDUSTRIALES: UNA ALTERNATIVA PARA LA ALIMENTACION DE LA TILAPIA

In the culture of tilapia limited supply and high cost of fish meal have forced nutritionists to consider alternative sources of protein. Due to the importance of the products and by-products in fish feed, this paper aims to show the alternatives that have been used to partially or totally replace fish meal and soybean meal in tilapia growing. This paper showsthe maximum or optimal use of vegetable by-products for tilapia as cottonseed meal, sunflower, canola, soybean and Leucaena. It also deals with the inclusion with agro-industrial by-product such as corn, sorghum, coffee pulp, cocoa, wheat and citrus. The present study also deals with the use of aquatic plants such as Lemna and Azolla, single-celled plant protein source as antibiotics and probiotics. Finally, this paper also refers to animal by-products as silage, manure and earthworm usage. There is a high potential for using plant, livestock and agro-industrial by-products in fresh and processed food for the tilapia, but depending on the product, pretreatment to improve its balance of nutrients or eliminate anti-nutritional factors may be required.
The functional repertoire encoded within the native microbiome of the model nematode Caenorhabditis elegans

The microbiome is generally assumed to have a substantial influence on the biology of multicellular organisms. The exact functional contributions of the microbes are often unclear and cannot be inferred easily from 16S rRNA genotyping, which is commonly used for taxonomic characterization of the bacterial associates. In order to bridge this knowledge gap, we here analyzed the metabolic competences of the native microbiome of the model nematode Caenorhabditis elegans. We integrated whole genome sequences of 77 bacterial microbiome members with metabolic modelling and experimental characterization of bacterial physiology. We found that, as a community, the microbiome can synthesize all essential nutrients for C. elegans. Both metabolic models and experimental analyses further revealed that nutrient context can influence how bacteria interact within the microbiome. We identified key bacterial traits that are likely to influence the microbe’s ability to colonize C. elegans (e.g., pyruvate fermentation to acetoin) and the resulting effects on nematode fitness (e.g., hydroxyproline degradation). Considering that the microbiome is usually neglected in the comprehensive research on this nematode, the resource presented here will help our understanding of C. elegans biology in a more natural context. Our integrative approach moreover provides a novel, general framework to dissect microbiome-mediated functions.
Quantitative Genetics of Populus

9 Chapter 1: General Introduction . 10 Goals and Objectives . 13 References . 14 Chapter 2: Quantitative Trait Locus mapping of Populus bark features and stem diameter . 16 Abstract . 16. 16 Introduction . 17 Materials and methods . 19 Mapping population . 19 Plant material and construction of genetic linkage map . 19 Phenotypic measurements . 19 QTL analysis . 20 Candidate genes . 21 Position of LBD genes . 21 Results . 22 Analysis of phenotypic correlations among traits and trait frequency distributions 22 QTL analysis and detection across contrasting environments . 22 Description of QTL clusters . 23 Candidate gene identification and characterization . 27 Discussion . 28
Physiological changes in leaves of some mango cultivars as response to exposure to low temperature degrees

Mango (Mangifera indica L.) is a popular, nutrional tropical fruit, which is now one of the most important fruit crops (as evergreen trees) in tropical and subtropical areas of the world.1 Mango occupies third place in total world production of major tropical fruit crops after citrus and banana.2 Environmental conditions outside the traditional areas for optimum growth of mango may impose stresses, which can result in physiological changes, reduced growth, or even permanent damage to the trees.3,4
NEUROPATIA AUTONÔMICA: UMA MANIFESTAÇÃO DE ALTO RISCO NO DIABETES MELLITUS TIPO 1

Resumo: A Diabetes Mellitus (DM) e uma doenca de desordem metabolica cujo sintomas classicos sao poliuria, polidipsia, polifagia e perda de peso. Pode ser classificada em dois tipos: Tipo 1, e autoimune, na qual ha destruicao das celulas b-pancreaticas e portanto ausencia de producao de insulina, e o tipo 2, no qual ocorre uma diminuicao ou resistencia a producao de insulina. Essa patologia desencadeia no sistema nervoso um disturbio conhecido como Neuropatia Diabetica (ND), tendo manifestacoes clinicas variaveis que causam alteracoes sensitivas ou motoras de nervos perifericos. E dividida em ND periferica, truncal e autonomica. Sendo a Neuropatia Autonomica, responsavel por acometer aparelhos como digestivo, geniturinario, sudomotor e cardiovascular. Apesar de ser um importante agravo relacionado ao quadro de DM poucos estudos tem sido realizados no intuito de buscar melhorias nesse quadro . Esse trabalho possui uma metodologia baseada em levantamentos bibliograficos em que utilizou-se como referencia artigos cientificos publicados entre os anos 2006 a 2018. Devido as manifestacoes subclinicas e aos poucos estudos abordando a ND autonomica em pacientes com DM tipo 1, esse estudo tem o objetivo de esclarecer de forma clara e sucinta as principais complicacoes decorrentes do quadro. Mencionando os principais testes que auxiliam no diagnostico e na conduta terapeutica.
Pemerolehan, analisis dan interpretasi data fMRI: kehubungan efektif dalam korteks auditori primer manusia

Kajian ke atas sifat kehubungan efektif dalam korteks auditori dilakukan ke atas lima orang subjek Melayu lelaki sihat berumur antara 20 hingga 40 tahun menggunakan pengimejan resonans magnet kefungsian (fMRI), pemetaan statistik berparameter (SPM5) dan pemodelan dinamik penyebab (DCM). Paradigma pengimejan senyap digunakan untuk mengurangkan artifak bunyi pengimbas di atas imej kefungsian. Subjek dikehendaki menumpukan perhatian kepada stimulus hingar putih yang diperdengarkan secara binaural pada keamatan 70 dB lebih tinggi daripada aras pendengaran manusia normal. Pengkhususan kefungsian dikaji menggunakan perisian SPM5 yang berasaskan Matlab melalui analisis kesan malar (FFX), kesan rawak (RFX) dan konjunksi. Analisis individu ke atas semua subjek menunjukkan pengaktifan bilateral yang tidak simetri di antara korteks auditori kanan dan kiri pada kawasan Brodmann (BA)22, 41 dan 42 melibatkan korteks auditori primer dan sekunder. Tiga kawasan auditori di korteks auditori kanan dan kiri tersebut dipilih untuk penentuan kehubungan efektif melalui pembentukan sembilan model rangkaian. Kehubungan efektif ditentukan ke atas empat daripada lima subjek dengan mengecualikan seorang subjek yang mempunyai koordinat BA22 yang terletak terlalu jauh daripada koordinat BA22 yang diperoleh daripada analisis kumpulan. Keputusan DCM menunjukkan kewujudan kehubungan efektif di antara ketiga-tiga kawasan auditori yang dipilih di kedua-dua korteks auditori. Pada korteks auditori kanan, BA42 dikenalpasti sebagai pusat masukan dengan kehubungan efektif satu arah selari BA42 → BA41 dan BA42 → BA22. Walau bagaimanapun, untuk korteks auditori kiri, pusat masukan adalah BA41 dengan kehubungan efektif satu arah selari BA41→BA42 dan BA41→BA22. Kehubungan di antara kawasan auditori yang mengalami pengaktifan mencadangkan kewujudan lintasan isyarat dalam korteks auditori walaupun semasa subjek mendengar bunyi hingar
Nonparametric expression analysis using inferential replicate counts

A primary challenge in the analysis of RNA-seq data is to identify differentially expressed genes or transcripts while controlling for technical biases. Ideally, a statistical testing procedure should incorporate the inherent uncertainty of the abundance estimates arising from the quantification step. Most popular methods for RNA-seq differential expression analysis fit a parametric model to the counts for each gene or transcript, and a subset of methods can incorporate uncertainty. Previous work has shown that nonparametric models for RNA-seq differential expression may have better control of the false discovery rate, and adapt well to new data types without requiring reformulation of a parametric model. Existing nonparametric models do not take into account inferential uncertainty, leading to an inflated false discovery rate, in particular at the transcript level. We propose a nonparametric model for differential expression analysis using inferential replicate counts, extending the existing SAMseq method to account for inferential uncertainty. We compare our method, Swish, with popular differential expression analysis methods. Swish has improved control of the false discovery rate, in particular for transcripts with high inferential uncertainty. We apply Swish to a single-cell RNA-seq dataset, assessing differential expression between sub-populations of cells, and compare its performance to the Wilcoxon test.
Uso de aprendizado de máquina para identificação de perfis depressivos em redes sociais

A depressao e uma doenca que atinge milhoes de pessoas por todo o mundo, independente de sua idade, classe social ou nacionalidade. Analise de Sentimentos vem sendo utilizada para extrair informacoes relevantes de postagens dos usuarios em redes sociais, afim de identificar o sentimento desses referente aos mais variados assuntos. O presente trabalho tem como objetivo utilizar tecnicas de analise de sentimentos para detectar possiveis perfis depressivos no Twitter. Para tal, foi criada uma estrategia intitulada DP-Symptom-Identifier a qual identifica possiveis sintomas depressivos presentes nos tweets e em seguida possibilita a analise do perfil como um todo, de forma temporal, facilitando o processo de identificacao de tracos depressivos nas timelines. Foram conduzidos experimentos para identificar o melhor algoritmo de aprendizado de maquina para compor a estrategia e tambem para avaliar a eficiencia da estrategia DP-Symptom-Identifier. O algoritmo selecionado foi o Multilayer Perceptron, o qual obteve uma taxa de assertividade de 90% com um tempo de processamento inferior a 5 segundos. A estrategia proposta mostrou-se eficaz para identificar possiveis perfis depressivos analisando timelines extraidas do Twitter. Portanto, os resultados indicam que a estrategia consegue identificar sintomas de depressao e possibilita a identificacao de perfis depressivos de forma correta.
Working on new gas turbine cycle for heat pump drive

The design and development of a low pressure, gas turbine engine for heat pump drive in commercial installations is described. The basic system consists of a natural gas fueled gas turbine (Brayton cycle) driving a vapor (Rankine) cycle heat pump centrifugal compressor through a magnetic coupling. The system uses about one-half the energy of an equivalent electric heat pump and is twice as efficient as a gas furnace. Design and development is expected to be complete by the end of 1981, leading to full scale producton in the mid-80's.
Deep Learning and Inverse Problems

Big data and deep learning are modern buzz words which presently inﬁltrate all ﬁelds of science and tech-nology. These new concepts are impressive in terms of the stunning results they achieve for a large variety of applications. However, the theoretical justiﬁcation for their success is still very limited. In this snapshot, we highlight some of the very recent mathematical results that are the beginnings of a solid theoretical foundation for the subject. Snapshots of modern mathematics from Oberwolfach provide exciting insights into current mathematical research. They are written by participants in the scientiﬁc program of the Mathematisches Forschungsinstitut Oberwolfach (MFO). The snapshot project is designed to promote the understanding and appreciation of modern mathematics and mathematical research in the interested public worldwide. All snapshots are published in cooperation with the IMAGINARY platform and can be found on www.imaginary. org/snapshots and on www.mfo. de/snapshots.
A miniaturized metamaterial unit cell for 5G applications

In this paper, a novel miniaturized metamaterial unit cell for 5G applications was proposed. The new structure is composed of an outer ring with four slots having capacitive loads and of two intersecting arms placed in the interior of the outer ring. This unit achieves a bandwidth of 52.32% compared to 18.46% for the conventional Split Ring Resonator structure. A set of unit cells are periodically associated on a substrate, above a bowtie antenna to improve their performances. The results show that this miniaturized structure offers some interesting features performances, such as wide bandwidth, which makes the design suitable for 5G systems.
The identification of improvement strategies in continuous assessment using sentiment analysis in the Operational Research course

The University aims is to graduate professionals with high levels of competence to impact society positively. In consequence, the institutions apply different educational strategies to focus on improving the curricular competencies until mastery the whole competences topics. An alternative highly applied is continuous assessment, which is a form of educational examination that evaluates the progress of a student throughout a prescribed course. A critical course in the engineer formation is Operational Research; this course focuses on scientific management supported by mathematical models such as decision theory, stochastic scenarios, simulation, mathematical optimization etcetera. The goal of this work is to diagnose the continuous assessment strategy apply to Industrial and System engineer students enrolled in Operational Research course, to do that, applying a sentiment analysis which is a text classification tool that analyses an incoming message (in this case a perception essay) and indicates whether the underlying sentiment is positive, negative or neutral. Furthermore, the Techniques applied to group the emotions of anger, anticipations, disgust, fear, joy, negative, positive, sadness, surprise, and trust. Taking into account the initial results, the authors highlight alternatives such as the flipped classroom, gamification as educational strategies to implement in futures courses looking to improving the continuous assessment positive perception.
Strain de la aurícula izquierda por speckle tracking: evaluación de su reproducibilidad global y segmentaria

Objective: to evaluate intra and inter-observer reproducibility of speckle tracking left atrial strain reservoir function using a protocol for its global and segmental analysis.Methods: a protocol for acquisition and measurement of left atrial strain was created (bull’s-eye type), for its global and segmental analysis. Reproducibility was assessed using intraclass correlation coefficient in twenty participants from the GEnotipo, Fenotipo y Ambiente de la HiperTension arterial en el UruguaY cohort. For global assessment intra-observer reproducibility graded excellent [0.92 (IC: 0.81-0.97)] while inter-observer reached good reproducibility [0.82 (IC: 0.59-0.92)]. Left atrial strain segmental analysis was not reproducible. Mean (±SD) left atrial strain was 31.0±7.5% for 4 chamber view, 34.6±9.9% for 2 chamber view and 36.8±13.9% for 3 chamber view. Global left atrial strain considering three views was 34.1±7.8%, and 32.8±6.5% considering 4 and 2 chamber views.Conclusion: left atrial strain acquisition and analysis protocol for reservoir function was reproducible for its global but not for its segmental analysis.