Miracle-dz/UniFAR-FTUs huggingface dataset:
Proposta de uma arquitetura extensiva ao protocolo BGP com balanceamento de carga através de múltiplos caminhos

O roteamento de pacotes entre sistemas autônomos na Internet, comumente realizado pelo Border Gateway Protocol, não possui mecanismo de balanceamento de carga. Neste sentido, este trabalho propõe uma extensão ao protocolo BGP, que possibilite uma arquitetura com balanceamento de tráfego utilizando múltiplos caminhos de roteamento. Experimentos preliminares demonstram avanços na criação de um modelo experimental, capaz não somente de balancear a carga por caminhos disjuntos, mas também de regular o encaminhamento proporcional usando dados relacionados ao estado dos enlaces.
Le numérique est-il un facteur déterminant de réussite : Cas des étudiants Tunisiens ?

L’objectif de cette etude est de scruter la maniere dont les etudiants peuvent emparer des TIC dans le cadre de leurs etudes et d’analyser les effets de leur utilisation sur la reussite des etudiants a l’universite sans remettre en cause les determinants traditionnels de cette reussite. Pour realiser cet objectif, nous nous sommes focalisees, primo, sur les usages numeriques des etudiants interroges : Acces aux appareils numeriques, frequence d’utilisation des TIC dans le cadre des activites universitaires, participation au travail collaboratif en utilisant les TIC et contact avec les enseignants et avec l’universite ; secondo, sur Les TIC, si elles jouent ou pas un role dans la reussite des etudiants. Partant d’une riche revue de litterature, nous avons fixes trois hypotheses de recherche dans le but d’examiner l’influence des TIC sur la reussite universitaire. Une etude quantitative a ete menee aupres d’un echantillon de 350 etudiants pour esquisser les questions de recherche soulevees.
Surface Characterization of Populus during Caldicellulosiruptor bescii Growth by TOF-SIMS Analysis

Caldicellulosiruptor bescii is a thermophilic, anaerobic bacterium that is capable of utilizing unpretreated biomass in addition to breaking down cellulose and hemicellulose into simple sugars. Despite the fact that C. bescii must first bind to the surface of the biomass, there has been no analysis of the morphological or chemical changes to the biomass surface as a result of incubation with the micro-organism. To understand more about C. bescii growth, juvenile poplar stems were sectioned (80 μm thick) and incubated with C. bescii beyond the typical 24 h experiment length. Monitoring the cell counts during incubation revealed a biphasic growth pattern. The impact the micro-organism had on the surface was determined by scanning electron microscopy (SEM) and time-of-flight secondary ion mass spectrometry (ToF-SIMS), which showed physical crevices in the cell wall caused by the C. bescii along with a decrease of polysaccharide ions and an increase in lignin ions on the poplar surface. Employing infrared mic.
Awareness and Knowledge About Various Dental Treatments Among Engineering Students

Engineering students belong to a large scale of educated and professional group of people who are prone more to stress and oral health related problems. This study is conducted in order to associate the level of awareness engineering students are of dental treatments and their extent of knowledge about implementing at need. To study the extent of awareness and knowledge about various dental treatments among engineering students. A set of questionnaires were prepared, developed and circulated among the engineering students in relation with the awareness and knowledge about various dental treatments. A total of 217 responses were collected and analyzed. The results were compiled for analysis.The obtained results show that engineering students are widely aware about various dental treatments.The study concludes that of the growing and enhancement in technology, the extent of awareness and knowledge about various dental treatments among engineering students is quite good.
Interaction between the dietary indices (DQI, DPI, HEI) and PPAR-γ gene variants on cardiovascular risk factors in a patient with type 2 diabetes mellitus

Background: We investigated the interaction between PPAR-γ Pro12Ala polymorphism and Healthy Eating Index (HEI), Dietary Quality Index-International (DQI-I) and Dietary Phytochemical Index (DPI) on Cardiovascular Disease (CVD) risk factors in patients with type 2 diabetes mellitus (T2DM). Methods: This cross-sectional study was conducted on 393 diabetic patients. PPAR-γ Pro12Ala was genotyped by PCR-RFLP method. Biochemical markers including total cholesterol (TC), low-density lipoprotein (LDL), high-density lipoprotein (HDL), triglyceride (TG), superoxide dismutase (SOD), C-reactive protein (CRP), total antioxidant capacity (TAC), pentraxin-3 (PTX3), isoprostaneF2α (PGF2α) were measured by standard protocol. FFQ was used for dietary indices (DQI, DPI, HEI) calculation. Results: There was no significant relationship between PPAR-γ Pro12Ala polymorphism and CVD risk factors. The rs1801282-DQI interactions were significant on WC (P= 0.01). Thus, C-allele carriers in the higher tertile of DQI had higher WC compared to GG homozygous. Further, an interaction was observed between PPAR rs1801282 polymorphism and DQI on serum IL-18 level (P = 0.03). Besides, a significant rs1801282-DPI interaction was shown on HDL concentration (P Interaction= 0.04), G allele carriers who were in the highest tertile of DPI, had lower HDL. Moreover, there were significant rs1801282-HEI interactions on ghrelin (P= 0.04) in the crude model and serum leptin (P = 0.02) in the adjusted model. Individuals with (CC, CG) genotypes in the higher tertile of HEI, had lower leptin and ghrelin concentration. Conclusions: Higher dietary indices (DQI, DPI, HEI) may affect the relationship between PPAR-γ Pro12Ala polymorphism and waist circumference and ghrelin, leptin, HDL-c, IL-18 concentration in patients with T2DM. To date, studies on this polymorphism have been shown that this gene can interact with diabetes and different nutritional factors. For the first time, this study provides information on the interaction of dietary indices (DQI, DPI, HEI) and PPAR-γ gene which is functionally effective in nutrient metabolism.
Ion chromatography as a rapid method to distinguish orange juices from second pressure concentrates

A rapid and accurate analytical method for orange juice evaluation is proposed. A duly diluted sample was analysed by ion chromatography with elution in gradient and simultaneous U.V. and conductivity detection. Inorganic anions (chloride, sulphate, phosphate) and organic anions (galacturonate, malate, tartrate, oxalate, citrate, isocitrate) were determined in a single analysis. The presence of three non-identified peaks in the second pressure concentrates, two revealed by conductivity and one by U.V. , which were not observed in the juice samples, allowed an easy and reliable differentiation to be made between juice and second pressure concentrates.
Some Mycotoxins Contamination in Animal Feed And Feedstuff Ingredients in Duhok Province

Fungi produce different types of mycotoxin under improper storage conditions and during crops growing period which cause chronic or acute animal toxicities. Aflatoxin B1, Ochratoxin A and T-2 toxin are mycotoxins that pose a threat to human and animal health. This study was carried out to determine AFB1, OTA and T-2 levels in animal feed and feedstuffs materials used in animal feed factories and livestock enterprises throughout Duhok province. The samples that used for analysis (35 mixed feeds and 54 feedstuffs materials) collected from different feed factories and enterprises. Mycotoxins concentrations were quantified by using immunoassay (ELISA). Results showed that positive samples for AFB1 found in 7 (7.87%), OTA were 21 (23.60%) and T-2 were 8 (8.99%) from 89 samples analysed, whereas negative samples found for AFB1 were 82 (92.13%), OTA were 68 (76.40%) and T-2 were 81 (91.01).
Crystal structure of (E)-5-((4-chlorophenyl)diazenyl)-2-(5-(4-fluorophenyl)-3-(thiophen-2-yl)-4,5-dihydro-1H-pyrazol-1-yl)-4-methylthiazole, C23H17ClFN5S2

Abstract C23H17ClFN5S2, monoclinic, P21/c (no. 14), a = 20.9691(12) Å, b = 11.5316(6) Å, c = 9.2546(4) Å, β = 95.484(4)°, V = 2227.6(2) Å3, Z = 4, Rgt(F) = 0.0468, wRref(F2) = 0.1126, T = 296 K.
Long‐term effects of soil management regimes on carbon contents and respiration rates of aggregate size fractions

This study investigated long‐term effects of soil management on size distribution of dry‐sieved aggregates in a loess soil together with their organic carbon (OC) and their respiratory activity. Soil management regimes were cropland, which was either abandoned, left bare fallow or cropped for 21 yr. Abandonment increased the abundance of macroaggregates (>2 mm) in the surface soil layer (0–10 cm) and reduced that of microaggregates (<0.25 mm) relative to Cropping, whereas the Fallow treatment reduced the abundance of macroaggregates at depths of 0–10 and 10–20 cm. All treatments yielded similar aggregate size distributions at a depth of 20–30 cm. The SOC content of aggregate size fractions in the surface soil from the Abandoned plots was greater (by 1.2–4.8 g/kg) than that of the corresponding fractions from the Cropped plots, but the opposite trend was observed in the subsurface soils. Conversely, the Fallow treatment reduced the SOC content of every aggregate size fraction. Smaller aggregates generally exhibited greater cumulative levels of C mineralization than larger ones. However, the bulk of the SOC losses from the soils via mineralization was associated with aggregates of >2 mm. Abandonment significantly increased the relative contribution of macroaggregates (>2 mm) to the overall rate of SOC loss, whereas the Fallow treatment significantly reduced the contribution of 0.25–2 mm aggregates to total SOC loss in the surface soil while substantially increasing their contribution in the subsurface soil.
Synthesis and Evaluation of Graphene for PEMFC Catalyst Support

Carbon supported platinum is a traditional electrocatalyst for proton exchange membrane fuel cell (PEMFC). The support material for the platinum is the key to the performance of the fuel cell. The catalyst performance can be enhanced by increasing the surface area as well as the electrical conductivity of the support material. Graphene is a flat monolayer of sp 2 hybridized carbon atoms tightly packed into a two-dimensional honeycomb lattice, which is a basic building block for carbon-based materials. Graphene has extraordinary high electrical conductivity as well as very high surface area as compared to carbon (Vulcan XC-72). Therefore, in the present study, graphene is synthesized as a support material by thermo-chemical method. The synthesized graphene is characterized by FESEM, TEM, and XRD. The graphene supported platinum (Pt/G) is prepared by precipitation method and the prepared catalyst is characterized for particle size, surface morphology, and electrochemical performance using cyclic voltammetry. The electrochemical surface area of graphene supported platinum is around 19% more than that of the carbon supported platinum (Pt/C). The membrane electrode assembly is developed and tested in a proton exchange membrane fuel cell. The operating parameters of the fuel cell are controlled by the help of a fuel cell test station. The performances of the fuel cell developed by Pt/G and Pt/C (commercial) are compared. The maximum power densities of Pt/G and Pt/C are observed as 314 and 426 mW-cm -2 , respectively.
Gesundheit und Arbeitszufriedenheit von Lehrer*innen? Eine Argumentationsmusteranalyse über Zufriedenheit und Wohlbefinden im Arbeitsleben von Lehrer*innen

Die vorgestellte Studie fokussiert auf Situationen und Bedingungen fur Arbeitszufriedenheit im Lehrer*innenberuf. Theoretische Grundlage bildet das salutogenetische Modell von Antonovsky mit der zentralen Kategorie des Koharenzgefuhls. Damit ist das subjektive Gefuhl von Stimmigkeit gemeint, d.h. das Gefuhl eines befriedigenden, sinnstiftenden Arbeitsalltags. Im Rahmen eines Praxisforschungsprojektes wurden vier narrative Interviews mit Lehrpersonen gefuhrt, die objektiv-hermeneutisch ausgewertet wurden. Als Ergebnis zeigen sich vier kontrastierende Argumentationsmuster, die latente Sinnstrukturen und komplexe Zusammenhange von subjektiven Interpretationen bezuglich des Arbeitsauftrages, der Zielsetzung und der damit verknupften Bewertung von Erfolgen und Misserfolgen offenlegen. Erkennbar werden verschiedene Bewertungs- und Verarbeitungsprozesse des Handelns von Lehrpersonen. Komplexe Ambivalenzen im beruflichen Alltagshandeln zwischen der eigenen Verausgabungsbereitschaft, Belastungs- und Uberforderungssituationen und notwendigen Distanzierungsfahigkeiten werden deutlich. Diskutiert werden die Befunde vor dem Hintergrund, dass es kein verbindliches Berufs- und Anforderungsprofil fur den Lehrer*innenberuf und das Handeln von Lehrpersonen zu geben scheint. Dieser weite Handlungsspielraum fuhrt bei Lehrer*innen zu unterschiedlichen Interpretationen der eigenen Berufsrolle, des Arbeitsauftrages und der Wahrnehmung der an sie gestellten Anforderungen und Erwartungen.
The features of CNT growth on catalyst-content amorphous alloy layer by CVD-method

This work is devoted to the CVD-synthesis of arrays of carbon nanotubes (CNTs) on Co-Zr-N-(O), Ni-Nb-N-(O), Co- Ta-N-(O) catalytic alloy films from gas mixture of C2H2+NH3+Ar at a substrate temperature of about 550°C.Heating of the amorphous alloy causes its crystallization and squeezing of the catalytic metal onto the surface. As a result, small catalyst particles are formed on the surface. The CNT growth takes place after wards on these particles. It should be noted that the growth of CNT arrays on these alloys is insensitive to the thickness of alloy film, which makes this approach technically attractive. In particular, the possibility of local CNT growth at the ends of the Co-Ta-N-(O) film and three-level CNT growth at the end of more complex structure SiO2/Ni-Nb-N-O/SiO2/Ni-Nb-N-O/SiO2/Ni-Nb-N-O/SiO2 is demonstrated.
The Effect of Working Memory Rehabilitation on Visual Memory and Memory Span

Methods: This was a quasi-experimental study with pretest-posttest design and a control group. The study population included all elderly people who lived in Bukan Nursing Home from April to July 2019 (N = 120). Among these individuals, 30 elderly people were selected by convenience sampling method and then randomly assigned to two experimental and control groups (two groups of 15 people). Kim Karad Visual Memory Test and Wechsler Memory Span Test were taken from the groups in pretest. The working memory rehabilitation was performed in 18 sessions (each sessions 60minute) and after which the test was performed again. The data were analyzed by multivariate covariance test according to its assumptions.
The Incidence, Aetiology And Treatment of Leiomyoma in Nigeria

Leiomyoma are a significant source of morbidity in reproductive aged woman across the globe causing distressing symptoms and in infertility in some women. There does, however, appear to be an increased incidence of leiomyoma in women of black African ethnicity and especially those women in Nigeria. This review covers the incidence and possibly aetiology and treatment of leiomyoma in Nigeria.
Synthesis, characterization and degradation activity of Methyl orange Azo dye using synthesized CuO/α-Fe2O3 nanocomposite

This study investigated the photo-degradation of methyl orange (MO) as a type of azo dye using a CuO/α-Fe2O3 nanocomposite. A CuO/α-Fe2O3 powder with a crystalline size in the range of 27-49 nm was successfully prepared using simple co-precipitation along with a sonication method. The characterization of the synthesized sample was done via XRD, FE-SEM, EDS, FTIR and DRS analyses. The Tauc equation revealed that the band gap of the nano composite in the direct mood was 2.05 ev, which is in the visible light range. The effect of operating factors containing dye concentration, photocatalyst dosage and pH on dye degradation efficiency was measured. Response Surface Method (RSM) was employed to specify the parameter effects. The photocatalytic activity of the CuO/α-Fe2O3 nanocomposite was evaluated by degradation of MO under visible light irradiation. The results showed that the pH value played a very effective role in the dye degradation process efficiency. Also, the photocatalytic degradation of MO obtained was equal to 88.47% in the optimal values.
Effects of Water Washing and Torrefaction Pretreatments on Corn Stalk Pyrolysis: Combined Study Using TG-FTIR and a Fixed Bed Reactor

The washing pretreatment and torrefaction pretreatment of corn stalk were performed in this study. The effects of both separate and combined pretreatments on the pyrolysis were studied using TG-FTIR and a fixed bed reactor. Washing pretreatment had little impact on the physicochemical properties of corn stalk, contributing mainly to the removal of some ash and metallic species. Torrefaction pretreatment, on the contrary, decreased the oxygen content but increased the ash content. TG-FTIR analysis showed that TG/DTG curves of corn stalk (CS), washed corn stalk (W-CS), torrefied corn stalk (T-CS), and torrefied-washed corn stalk (TW-CS), in turn, showed a right shift trend, and the initial decomposition temperatures increased obviously. Among the samples, W-CS had the lowest values of 27.58 and 29.76 wt % for the final residue mass in the TG curve and the biochar yield, respectively, and the highest bio-oil yield of 48.32 wt %, indicating that the removal of metallic species facilitated the pyrolysis of cor.
Leishmaniose visceral e desnutrição: uma via de mão dupla?

Objective: to outline the panorama of the discussion between visceral leishmaniasis and malnutrition. Methods: this is a descriptive, exploratory study, supported by an integrative literature review, carried out at the Virtual Health Library through scientific databases, which are the Medical Literature Analysis and Retrieval System on-line (MEDLINE) and Latin American and Caribbean Literature in Health Sciences (LILACS). The collection resulted in articles published during the period from 2006 to 2017. A total of 89 articles were found, 76 documents in MEDLINE and 13 in LILACS. Of these, only 11 made up the final sample. Results: malnutrition in visceral leishmaniasis seems to have two different genesis, one due to the deficiency in the intake of macro and micronutrients, preceding the infection and favoring the susceptibility of the host due to the impairment of the branches of the immune response and the other through a hypercatabolic and anorexic consuming process. triggered by the systemic inflammatory response to the action of leishmania. Both within a global framework that involves genetic, immunological, hormonal, environmental and parasite elements. Finales considerations: therefore, clinical management of malnutrition through anthropometric and laboratory parameters is essential, regardless of origin.
Distributed Optimization Approach for Solving Continuous-Time Lyapunov Equations With Exponential Rate of Convergence

This article establishes an approach, based on distributed optimization, for solving continuous-time Lyapunov equations (CTLE) over multiagent networks. Each agent in the network knows partial information of the CTLE and has a dynamical system to estimate exact or least-squares solutions. The aim of agents is to find a solution to CTLE by sharing information with connected agents over a network. This article develops distributed algorithms with an exponential rate of convergence for CTLE via the convex optimization design. Finally, this article presents numerical simulations to show the efficacy of the main results.
Social Entrepreneurship and Nonprofit Management: Negotiating Institutional Complexity

Nonprofit organizations (NPOs) increasingly view social entrepreneurship as means to expand their mission scope while simultaneously diversifying revenue streams and strengthening financial foundations. However, the pursuit of social entrepreneurial ventures often incites a tug-of-war phenomenon between the deep-rooted social welfare logic of the parent nonprofit organization and a newly-evolving commercial logic at the subsidiary social enterprise. The present study seeks to understand how nonprofit organizations navigate such logic conflicts as they strive to become more entrepreneurial. Based upon case studies of two NPOs, we found divergence in organizational identity, legitimacy, and mission/vision between parent nonprofits and their subsidiary social enterprises as they struggled with a defining question: Are we a program or are we a business? Our research indicates that organizations reconcile such cognitive dissonance through four distinct processes: connecting, variegating, separating, and augmenting social welfare and commercial logic spheres. We thus contribute to the social entrepreneurship and nonprofit management literatures by illustrating ways in which non-commercial organizations may address issues of logic divergence when engaging in revenue-generating commercial activities.
Investigating the Role of Transcription Factors TWIST1, TWIST2 and PPARγ in the Progression of Nonalcoholic Steatohepatitis

Background: To investigate the role that transcription factors TWIST1, TWIST2 and PPARγ play in nonalcoholic steatohepatitis progression. Methods: The protein levels of TWIST1, TWIST2 and PPARγ were determined in the serum of NAFLD patients and healthy controls by ELISA. An in vivo model for fatty liver was established by feeding C57BL/6J mice a high fat diet (HFD). An in vitro model of steatosis was established by treating LO-2 cells with oleic acid (OA). RNA sequencing was performed on the untreated and OA treated LO-2 cells followed by TWIST1, TWIST2 and PPARγ gene mRNA levels analysis, Gene Ontology (GO) enrichment and pathway analysis. Results: The TWIST2 serum protein levels decreased significantly in all fatty liver groups (P<0.05) while TWIST1 varied. TWIST2 tended to be lower in mice fed a HFD and was significantly lower at 3 months. Similarly, in our in vitro model, TWIST2 protein level was down significantly at 48 and 72 hours after OA treatment. RNA sequencing of the LO-2 cells showed an approximately 2.3-fold decrease in TWIST2, with TWIST1 and PPARγ no obvious change. The PPAR signaling pathway was enriched with 4 genes up regulated in OA treated cells (P=0.0018). IL-17 and TNF signaling pathways were enriched in OA treated cells. Conclusions: Our results provide evidence that TWIST2 and PPARγ are important in NAFLD and shed light on a potential mechanism of steatosis.
3D Fuzzy Graphene Microelectrode Array for Neurotransmitter Sensing at Sub-cellular Spatial Resolution

Dopamine (DA) is a monoamine neurotransmitter involved in the modulation of various physiological brain functions, including learning, motivation, reward, and motor functions. The development of a high sensitivity real-time sensor for multi-site detection of DA with high spatial resolution has critical implications for both neuroscience and clinical communities to improve understanding and treatments of neurological and neuropsychiatric disorders. Here, we present high-surface area out-of-plane grown three-dimensional (3D) fuzzy graphene (3DFG) microelectrode arrays (MEAs) for highly selective, sensitive, and stable DA electrochemical sensing. 3DFG microelectrodes present a remarkable sensitivity to DA (2.87 ± 0.25 nA/nM, withLOD of 990±15 pM), the highest reported for nanocarbon MEAs using Fast Scan Cyclic Voltammetry (FSCV). The high surface area of 3DFG allows for miniaturization of electrode down to 2 x 2 μm^2, without compromising the electrochemical performance. Moreover, 3DFG MEAs are electrochemically stable under 7.2 million scans of continuous FSCV cycling, present exceptional selectivity over the most common interferents in vitro with minimum fouling by electrochemical byproducts, and can discriminate DA and serotonin (5-HT) in response to the injection of their 50:50 mixture. These results highlight the potential of 3DFG MEAs as a promising platform for FSCV based multi-site detection of DA with high sensitivity, selectivity, and spatial resolution.