bluuebunny/crossref_metadata_2025 huggingface dataset:
Inverse scattering transform for the integrable nonlocal Lakshmanan-Porsezian-Daniel equation
Authors: Xun Wei-Kang , Tian Shou-Fu , Zhang Tian-Tian
Published: November 2021

In this work, a generalized nonlocal Lakshmanan-Porsezian-Daniel (LPD) equation is introduced, and its integrability as an infinite dimensional Hamilton dynamic system is established. We successfully derive the inverse scattering transform (IST) of the nonlocal LPD equation. The direct scattering problem of the equation is first constructed, and some important symmetries of the eigenfunctions and the scattering data are discussed. By using a novel Left-Right Riemann-Hilbert (RH) problem, the inverse scattering problem is analyzed, and the potential function is recovered. By introducing the special conditions of reflectionless case, the time-periodic soliton solutions formula of the equation is derived successfully. Take \begin{document}$ J = \overline{J} = 1,2,3 $\end{document} and \begin{document}$ 4 $\end{document} for example, we obtain some interesting phenomenon such as breather-type solitons, arc solitons, three soliton and four soliton. Furthermore, the influence of parameter \begin{document}$ \delta $\end{document} on these solutions is further considered via the graphical analysis. Finally, the eigenvalues and conserved quantities are investigated under a few special initial conditions.
Attractors for a class of perturbed nonclassical diffusion equations with memory
Authors: Yuan Jianbo , Zhang Shixuan , Xie Yongqin , Zhang Jiangwei
Published: November 2021

In this paper, using a new operator decomposition method (or framework), we establish the existence, regularity and upper semi-continuity of global attractors for a perturbed nonclassical diffusion equation with fading memory. It is worth noting that we get the same conclusion in [7,14] as the perturbed parameters \begin{document}$ \nu = 0 $\end{document}, but the nonlinearity \begin{document}$ f $\end{document} satisfies arbitrary polynomial growth condition rather than critical exponential growth condition.
Bifurcation of the critical crossing cycle in a planar piecewise smooth system with two zones
Authors: Wu Fang , Huang Lihong , Wang Jiafu
Published: November 2021

In this paper, we consider the nonsmooth bifurcation around a class of critical crossing cycles, which are codimension-2 closed orbits composed of tangency singularities and regular orbits, for a two-parameter family of planar piecewise smooth system with two zones. By the construction of suitable displacement function (equivalently, Poincar\begin{document}$ {\rm\acute{e}} $\end{document} map), the stability and the existence of periodic solutions under the variation of the parameters inside this system are characterized. More precisely, we obtain some parameter regions on the existence of crossing cycles and sliding cycles near those loops. As applications, several examples are given to illustrate our main conclusions.
Kinetic description of stable white dwarfs
Authors: Jang Juhi , Seok Jinmyoung
Published: November 2021

In this paper, we study fermion ground states of the relativistic Vlasov-Poisson system arising in the semiclassical limit from relativistic quantum theory of white dwarfs. We show that fermion ground states of the three dimensional relativistic Vlasov-Poisson system exist for subcritical mass, the mass density of such fermion ground states satisfies the Chandrasekhar equation for white dwarfs, and that they are orbitally stable as long as solutions exist.
Integrating Multiple Survey Techniques to Document a Shifting Bat Community in the Wake of White-Nose Syndrome
Authors: Reynolds D. Scott , Shoemaker Kevin , von Oettingen Susi , Najjar Stephen , Veilleux Jacques P. , Moosman Paul R.
Published: November 2021

The long-term study of bat communities often depends on a diverse set of sampling methodologies that are chosen based on the species or habitat management priorities of the research project. Integrating the data from a diverse set of methodologies (such as acoustic monitoring and mist net sampling) would improve our ability to characterize changes in community structure or composition over time, such as one would expect following an emergent infectious disease such as white-nose syndrome. We developed a Bayesian state-space model to integrate these disparate data into a common currency (relative abundance). We collected both acoustic monitoring and mist net capture data over an 8-y period (2006–2014) to document shifts in the bat community in central New England, USA, in response to the onset of white-nose syndrome in 2009. The integrated data model shows a significant decline in the abundance of little brown bat Myotis lucifugus, northern long-eared bat Myotis septentrionalis, and hoary bat Lasiurus cinereus, and an increase in abundance of the eastern small-footed bat Myotis leibii and the eastern red bat Lasiurus borealis. There was no evidence for a change in abundance in the big brown bat Eptesicus fuscus since the onset of white-nose syndrome. The consistency of this model with regional estimates of decline over the same time period support the validity of our relative abundance estimate. This model provides the opportunity to quantify shifts in other communities where multiple sampling methodologies were employed, and therefore provides natural resource managers with a robust tool to integrate existing sampling data to quantify changes in community composition that can inform conservation and management recommendations.
Διονύσιος e i suoi medicamenta: questioni di metodo
Authors: Taborelli Luigi
Published: November 2021

La ricerca che riguarda la produzione e il commercio dei medicamenta nelle regioni attorno al bacino centro-orientale del Mediterraneo si basa essenzialmente sullo studio dei bolli impressi nel caso dei microcontenitori ceramici oppure su quello di brevi iscrizioni a rilievo ricavate da matrice bivalve nel caso dei microcontenitori metallici (realizzati quasi sempre in piombo). Tra i medicamenta viene qui approfondito il caso del λύκιον, un pregiato collirio oculare decantato dalle fonti. In particolare si è scelto di analizzare il caso del produttore Διονύσιος, un farmacopòla o forse un medico, perché si è rivelato il più problematico nell’ambito della Ricerca. Infatti non sappiamo se questo nome che ricorre su alcuni bolli e iscrizioni di microcontenitori sia da riferire a un solo personaggio o a omonimi. Del resto tali esemplari non sono coerenti tra loro e documentano produzioni seriali e partite di contenitori diverse tra loro di cui, oltretutto, non possiamo conoscere le dimensioni numeriche. Inoltre non riusciamo a delimitare la durata delle produzioni di Διονύσιος e neppure i confini della diffusione commerciale dei suoi prodotti. Quanto alla cronologia le generiche indicazioni di cui disponiamo suggeriscono per il complesso degli esemplari esaminati un periodo compreso attorno al III sec. a. c. Il caso di Διονύσιος tuttavia, proprio per le questioni che suscita può essere considerato emblematico nell’ambito della specifica Ricerca perché ne evidenzia i limiti attuali e costringe ad adeguare continuamente strumenti e metodi da adottare e da adattare per consentire il suo ulteriore sviluppo.
Dauniens et Samnites. La tombe du guerrier de Chiancone (Pietramontecorvino, Foggia) entre habitat et espaces funéraires
Authors: Muntoni Italo M. , Garnier Nicolas
Published: November 2021

Si presentano i risultati delle indagini di archeologia preventiva condotte dalla Soprintendenza Archeologia della Puglia, tra 2012 e 2014 in occasione della realizzazione di un impianto eolico, in località Monte Chiancone nel territorio del comune di Pietramontecorvino (FG), dove sono state messe in luce diverse evidenze archeologiche pertinenti ad un abitato daunio, localizzato su un pianoro sommitale posto presso le pendici del Monte Chiancone (265 m s.l.m.) a ridosso del torrente Triolo. Di rilevante importanza era stato, già nella prima campagna di saggi preventivi del 2012, il rinvenimento di una tomba (n. 1) a fossa terragna pertinente ad un guerriero, di eccezionale rilievo per la ricchezza del corredo inquadrabile nel V sec. a.C. e per la pregnanza ideologica e simbolica degli oggetti che lo compongono. Le indagini estensive, invece, svolte nel 2014 hanno permesso di mettere in luce un nucleo insediativo di età daunia, in cui si inserisce anche questa sepoltura, occupato tra la fine del VI e il IV sec. a.C., con diverse evidenze, sia in rapporto all’architettura domestica, che in relazione alla dimensione funeraria. Dall’analisi del corredo della tomba del guerriero, condotto anche nell’ambito del Progetto MAGI, appare evidente e caratterizzante il consumo del vino rosso e bianco, evidente richiamo all’ideologia del banchetto, a cui si associa il riferimento al consumo delle carni, gestito da un elemento di spicco all’interno del gruppo di appartenenza, che si connota appunto come guerriero. Evidente, in questo, appare la penetrazione di elementi allogeni (dalla posizione supina dell’inumato, alla prevalenza del vasellame in impasto a scapito di quello in argilla depurata dipinta) in un’area tradizionalmente afferente al territorio daunio, ma situata nell’estremo settore settentrionale dello stesso, pertanto, già proiettata verso le valli fluviali interne che collegano con l’attuale Molise e con la Campania settentrionale interna, il Sannio dunque, della piena età storica.
Réflexions interdisciplinaires autour des pratiques funéraires gauloises en Languedoc (viie-iie siècles av. J.-C.) : l’apport de la chimie organique
Authors: Bel Valérie , Garnier Nicolas , Barberan Sébastien , Chardenon Nathalie , Forest Vianney , Jung Cécile , Mazière Florent , Ratsimba Antoine , Séjalon Pierre
Published: November 2021

Cinquante-et-une analyses de chimie organique réalisées en contexte funéraire sur des vases, des os et de la terre de bûcher, ont permis de mettre en évidence l’existence de divers produits alimentaires utilisés lors des funérailles. Cette étude a pour objectif de discuter de leur place et des gestes qu’ils sous-entendent. Les tombes prises en compte sont toutes à crémation (bûcher ou ossuaire). Elles sont situées en Languedoc et sont datées entre le VIIe et le IIe siècle av. J.-C.
Possible models for the roll-out of a public charging infrastructure for electric vehicles in the Brussels-Capital Region
Authors: De Clerck Quentin , Vanhaverbeke Lieselot
Published: November 2021

L’impact du transport sur le changement climatique ne cesse de s’intensifier, faisant des véhicules durables une étape importante pour réduire les émissions. Dans ce contexte, un grand réseau de bornes de recharge permettrait de stimuler l’adoption de la voiture électrique, mais ce réseau demeure trop limité à Bruxelles. Dans cet article, nous présentons deux méthodes complémentaires susceptibles de soutenir le déploiement d’une infrastructure de recharge. L’analyse pour la recharge opportuniste publique consiste en une approche basée sur un point d’intérêt (point of interest, POI) qui démontre que l’accessibilité de l’infrastructure de recharge tend à s’améliorer avec l’installation de bornes à proximité d’importants pôles de mobilité bruxellois. Pour la recharge résidentielle publique, des emplacements sont identifiés sur la base de modèles de localisation tenant compte des prévisions de la demande en véhicules électriques (VE). Le déploiement qui en résulte s’impose en premier lieu dans les quartiers où l’adoption escomptée de VE est forte, et s’étend ensuite de manière équilibrée sur l’ensemble du territoire de la Région. La combinaison des deux méthodes offre une solution tant aux habitants (modèles de localisation) qu’aux visiteurs et aux navetteurs (approche POI).
Aportes conceptuales y prácticos desde dos casos judiciales de contaminación por agrotóxicos: el Caso Ituzaingó (Córdoba) y el Caso La Leonesa-Las Palmas (Chaco), Argentina
Authors: Berger Mauricio Sebastián , Carrizo Sineiro Cecilia , Ferreyra Yamila
Published: November 2021

En el presente artículo presentamos resultados de una etapa de nuestra investigación iniciada en el año 2003 sobre los impactos de los agrotóxicos en la salud humana en Argentina. Específicamente, la investigación realizada sobre los saberes generados en el marco de la resolución de dos procesos judiciales de contaminación ambiental por agrotóxicos en dos provincias, Córdoba y Chaco. Desde una perspectiva pragmatista analizamos las prácticas discursivas situadas, identificando cómo la comunidad de intérpretes constituida en cada caso cuestiona y profundiza en torno a nociones claves en la producción de la prueba en los juicios, contribuyendo así a un sentido que hace justicia con los afectados. En el caso Chaco, el foco está puesto en una de las herramientas clave de una política pública ambiental, la Evaluación de Impacto Ambiental (EIA). La crítica y los aportes descansan en una epistemología de la complejidad, que rebasa y se impone sobre prácticas pseudocientíficas, que no contemplan las múltiples dimensiones en juego en casos ambientales. Desde el otro caso, Córdoba, focalizamos en cómo se complejizan los discursos en torno a la tipificación del caso como delito de peligro. El objetivo es presentar cómo la comunidad de intérpretes articula la evidencia científica con otros saberes, dando lugar a la complejidad y a la pluralidad epistémica en la resolución de los casos. Para dicha investigación hemos desarrollado un modelo de análisis de saberes estratégicos (saberes de y en la acción) en base a análisis de documentos y entrevistas en profundidad, presentando aquí los que consideramos más relevantes en primer lugar para la crítica y actualización de la herramienta clave de la política ambiental, la EIA. En segundo lugar, para la tipificación del delito, a fin de compatibilizar la complejidad en juego con el bloque normativo ambiental y el reconocimiento y la garantía de derechos de todos y cada uno.
Noções de magia na Teoria da Religião de Roodney Stark e William Sims Bainbridge
Authors: Ramalho Emmanuel
Published: November 2021

Inserida na Teoria da Escolha Racional, Uma Teoria da Religião, dos sociólogos Rodney Stark e William Sims Bainbridge, representa um esforço teórico significativo na sociologia da religião contemporânea. É possível que ela também seja uma boa opção analítica para entender aspectos gerais da magia, já que, ao longo de Uma Teoria da Religião, Stark e Bainbridge fornecem formulações extensivas sobre o tema, possibilitando – com a devida sistematização – um conjunto de enunciados com certa autonomia. Dessa forma, este artigo busca sistematizar e realizar uma análise crítica das noções de magia Stark e Bainbridge em Uma Teoria da Religião. Espera-se que este trabalho de sistematização facilite a compreensão e eventual uso dessas noções por pesquisadores acadêmicos de magia, área de pesquisa com escassos trabalhos de âmbito puramente teórico a partir da segunda metade do século XX.
Load and Cost-Aware Min-Min Workflow Scheduling Algorithm for Heterogeneous Resources in Fog, Cloud, and Edge Scenarios
Authors: Bisht Jyoti , Vampugani Venkata Subrahmanyam
Published: November 2021

Fog computing and Edge computing are few of the latest technologies which are offered as solution to challenges faced in Cloud Computing. Instead of offloading of all the tasks to centralized cloud servers, some of the tasks can be scheduled at intermediate Fog servers or Edge devices. Though this solves most of the problems faced in cloud but also encounter other traditional problems due to resource-related constraints like load balancing, scheduling, etc. In order to address task scheduling and load balancing in Cloud-fog-edge collaboration among servers, we have proposed an improved version of min-min algorithm for workflow scheduling which considers cost, makespan, energy and load balancing in heterogeneous environment. This algorithm is implemented and tested in different offloading scenarios- Cloud only, Fog only, Cloud-fog and Cloud-Fog-Edge collaboration. This approach performed better and the result gives minimum makespan, less energy consumption along with load balancing and marginally less cost when compared to min-min and ELBMM algorithms
Generalized Fuzzy Divergence Measure, Pattern Recognition, and Inequalities
Authors: Saraswat Ram Naresh , Khatod Neha
Published: November 2021

Many fuzzy information and divergence measures developed by various researchers and authors. Here, authors proposed new fuzzy divergence measure using the properties of convex function and fuzzy concept. The applications of novel fuzzy divergence measures in pattern recognition with case study, are discussed. Obtained various novel fuzzy information inequalities on fuzzy divergence measures. The new relations among new and existing fuzzy divergence measure by new f-divergence, Jensen inequalities, properties of convex functions and inequalities have studied. Finally, verified these results and proposed fuzzy divergence measures by numerical example.
DNA-Based Cryptographic Method for the Internet of Things
Authors: Khobzaoui Abdelkader , Benyahia Kadda , Mansouri Boualem , Boukli-Hacene Sofiane
Published: November 2021

Internet of Things (IoT) is a set of connected smart devices providing and sharing rich data in real-time without involving a human being. However, IoT is a security nightmare because like in the early computer systems, security issues are not considered in the design step. Thereby, each IoT system could be susceptible to malicious users and uses. To avoid these types of situations, many approaches and techniques are proposed by both academic and industrial researches.DNA computing is an emerging and relatively new field dealing with data encryption using a DNA computing concepts. This technique allows rapid and secure data transfer between connected objects with low power consumption. In this paper, authors propose a symmetric cryptography method based on DNA. This method consists in cutting the message to encrypt/decrypt in blocks of characters and use a symmetric key extracted from a chromosome for encryption and decryption. Implemented on the embedded platform of a Raspberry Pi, the proposed method shows good performances in terms of robustness, complexity and attack resistance.
A Hybrid Classification Technique for Enhancing the Effectiveness of Intrusion Detection Systems Using Machine Learning
Authors: Kumar Kapil , Kumar Arvind , Kumar Vimal , Kumar Sunil
Published: November 2021

The objective of this paper is to propose and develop a hybrid intrusion detection system to handle series and non-series data by applying the two different concepts that are named clustering and autocorrelation function in a single architecture. There is a need to propose and build a system that can handle both types of data whether it is series or non-series. Therefore, the authors used two concepts to generate a robust approach to craft a hybrid intrusion detection system. The authors utilize an unsupervised clustering approach that is used to categorize the data based on domain similarity to handle non-series data and another approach is based on autocorrelation function to handle series data. The approach is consumed in single architecture where it carries data as input from both host-based intrusion detection systems and network-based intrusion detection systems. The result shows that the hybrid intrusion detection system is categorizing data based on the optimal number of clusters obtained through the elbow method in clustering.
A Hybrid GWO-PSO Technique for the Solution of Reactive Power Planning Problem
Authors: Badi Manjulata , Mahapatra Sheila , Dey Bishwajit , Raj Saurav
Published: November 2021

Over the years the optimization in various areas of power system has immensely attracted the attention of power engineers and researchers. RPP problem is one of such areas. This is done by the placement of reactive power sources in the weak buses and thereafter minimizing the operating cost of the system which is directly dependent on the system transmission loss. The work proposed in this article utilizes FVSI method to detect the weak bus. GWO-PSO is proposed in the current work for providing optimal solution to RPP problem. To test the efficacy of the proposed technique, comparative analysis is then performed among the variants of PSO and hybrid GWO-PSO. The optimal solution rendered by the proposed method is compared with other heuristic algorithms. The proposed method of GWO-PSO generates a reduction of 4.25% in operating cost for IEEE 30 bus and 5.99% for New England 39 bus system. The comparison thus yields that the GWO-PSO hybrid method is superior in generating optimality, diversity and is efficient to generate solution strategies for RPP even in a practical power network.
Engineering Design Optimization Using an Advanced Hybrid Algorithm
Authors: Verma Pooja , Parouha Raghav P.
Published: November 2021

An advanced hybrid algorithm (haDEPSO) proposed in this paper for engineering design optimization problems. It integrated with suggested advanced differential evolution (aDE) and particle swarm optimization (aPSO). In aDE introduced a novel mutation, crossover and selection strategy, to avoiding premature convergence. And aPSO consists of novel gradually varying parameters, to escape stagnation. So, convergence characteristic of aDE and aPSO provides different approximation to the solution space. Thus, haDEPSO achieve better solutions due to integrating merits of aDE and aPSO. Also, in haDEPSO individual population is merged with other in a pre-defined manner, to balance between global and local search capability. Proposed hybrid haDEPSO as well as its integrating component aDE and aPSO has been applied to five engineering design optimization problems. Numerical, statistical and graphical experiments (best, worst, mean and standard deviation plus convergence analysis) confirm the superiority of the proposed algorithms over many state-of-the-art algorithms.
Log File Template Detection as a Multi-Objective Optimization Problem
Authors: Mathi Murugan T.  , Baburaj E.
Published: November 2021

There is a need for automatic log file template detection tool to find out all the log messages through search space. On the other hand, the template detection tool should cope with two constraints: (i) it could not be too general and (ii) it could not be too specific These constraints are, contradict to one another and can be considered as a multi-objective optimization problem. Thus, a novel multi-objective optimization based log-file template detection approach named LTD-MO is proposed in this paper. It uses a new multi-objective based swarm intelligence algorithm called chicken swarm optimization for solving the hard optimization issue. Moreover, it analyzes all templates in the search space and selects a Pareto front optimal solution set for multi-objective compensation. The proposed approach is implemented and evaluated on eight publicly available benchmark log datasets. The empirical analysis shows LTD-MO detects large number of appropriate templates by significantly outperforming the existing techniques on all datasets.
Logistic Map and Exponential Scaling Factor-Based Differential Evolution
Authors: Kashyap Katyayani , Pathak Sunil , Yadav Narendra Singh
Published: November 2021

Differential evolution (DE), an important evolutionary technique, enhances its parameters such as, initialization of population, mutation, crossover etc. to resolve realistic optimization issues. This work represents a modified differential evolution algorithm by using the idea of exponential scale factor and logistic map in order to address the slow convergence rate, and to keep a very good equilibrium linking exploration and exploitation. Modification is done in two ways: (i) Initialization of population and (ii) Scaling factor.The proposed algorithm is validated with the aid of a 13 different benchmark functions taking from the literature, also the outcomes are compared along with 7 different popular state of art algorithms. Further, performance of the modified algorithm is simulated on 3 realistic engineering problems. Also compared with 8 recent optimizer techniques. Again from number of function evaluations it is clear that the proposed algorithm converses more quickly than the other existing algorithms.
Physical quality of eggs of four strains of poultry
Authors: Almeida Guilherme Resende de , Mendonça Michele de Oliveira , Weitzel Lidianne Carolina de Castro , Bittencourt Tatiana  Marques , Matos Anderson Soares de , Valentim Jean kaique , Araújo Michelle Lopes de , Oliveira Adna Quesia Costa de
Published: November 2021

The layer poultry is an important activity for food production with high biological value. Measuring egg quality has great relevance to ensure safety and quality products for consumers. Thus, the objective was to evaluate the egg physical quality of four laying hen’s strains. Were used 864 eggs from four laying hens’ lines (Hisex Brown®, Hy-Line Brown®, Isa Label®, and Lohmann Brown®). The experimental design was completely randomized composed of four treatments (strains) with nine replications with four eggs each. Egg weight, egg diameter, egg length, specific gravity, yolk, albumen and shell weight and percentage, Haugh units, and shell thickness were evaluated. There was a significant difference for all parameters evaluated. The Hisex Brown® strain showed the best results for egg diameter, egg length, specific weight, albumen height, Haugh units, yolk weight, albumen%, shell weight, shell%, and shell thickness, while the Hy-Line Brown® produced bigger and heavier eggs, and Isa Label® presented the highest yolk%. The Hisex Brown® strain showed the better physical quality of eggs when compared to the other studied lines, the strain being indicated when the objective is to produce eggs with better internal and external quality.
Ewe performance in the post-weaning phase and structural characteristics of Brachiaria brizantha cultivars in the dry season
Authors: Silva Alex Álvares da , Difante Gelson dos Santos , Emerenciano Neto João Virgínio , Gurgel Antonio Leandro Chaves , Fernandes Leonardo Santana , Campos Nathalia Rafaela Fidelis , Carvalho Netto Roldão Teixeira de , Santos Santana Juliana Caroline
Published: November 2021

The objective of this study was to examine the performance of ewes in the post-weaning phase and the structural characteristics of Brachiaria brizantha cultivars in the dry season. The treatments were represented by four Brachiaria brizantha cultivars (Piatã, Marandu, Paiaguás, and Xaraés), which were evaluated in a randomized-block design with two replicates for the forage variables and eight replicates for the animal performance variables. Canopy height, masses of forage and morphological components and chemical composition of morphological components were evaluated. Thirty-two ½ Santa Inês and ½ Dorper sheep with an initial body weight (BW) of 22.7 ± 1.2 kg were used. Average daily gain (ADG – kg animal-1 day-1), stocking rate (in animal units [AU] = 30 kg of body weight) and weight gain per area (kg ha-1 day-1) were measured. There was no cultivar effect (p > 0.05) on the structural characteristics of the pasture. The highest crude protein content in the leaf blade (11.8%) were found in cultivar Marandu. Average daily gain was higher in the animals that grazed on cultivar Marandu (0.08 kg animal-1 day-1) as compared with cultivars Xaraés (0.05 kg animal-1 day-1) and Piatã (0.04 kg animal-1 day-1), whereas the ewes that grazed on cultivar Paiaguás showed intermediate ADG values (0.06 kg animal-1 day-1). There was no difference between the cultivars for stocking rate (9.2 AU). Weight gain per area was highest in cultivar Marandu (0.33 kg ha-1 day-1) and lowest in cv. Piatã (0.16 kg ha-1 day-1). Brachiaria brizantha cultivars Piatã, Marandu, Paiaguás and Xaraés proved to be forage options for the post-weaning phase of ewes supplemented with concentrate in the dry season.
Correlations between body measures with live weight in young male goats
Authors: Fonseca Júlia dos Santos , Pimenta José Luiz Leonardo de Araujo , Moura Larissa Sardinha de , Souza Ludmila Cavati de , Silva Tatiana Labre da , Fonseca Carlos Elysio Moreira da , Oliveira Rodrigo Vasconcelos de
Published: November 2021

Data analysis in goat production, such as those related to body and scrotal measurements, indicate the productive and reproductive animal development. The current study aimed to evaluate the correlations between thoracic perimeter (TP), body length (BL), body compacity (BC), body volume (BV), and scrotal circumference (SC) with body weight (BW) in young male goats of Saanen and Boer breeds. It was used 38 Saanen and 24 Boer male goats, with age average of 7.2 ± 2.0 months. Thoracic perimeter and body length measurements were obtained using a tape measure (cm) and the live weight (kg) a mechanic scale. The variables body compacity (BC) and body volume (BV) were calculated using the equations:  and . Boer breed showed live weight and body compacity higher than Saanen breed (p < 0.05). Regarding correlations between biometric measurements and body weight, we did not find any statistical differences between the breeds (p > 0.05). The scrotal circumference presented the lowest association with body weight (p < 0.05). However, all biometric measurements showed highly significant correlations with live body (p < 0.01). In conclusion, thoracic perimeter was the main measure of body weight predictor, considering efficiency and practical aspects.
Vegetable choline as a replacement for choline chloride in broiler feed
Authors: Petrolli Tiago Goulart , Petrolli Rafaella Rossetto , Aniecevski Edemar , Facchi Caroline Schmidt , Leite Felipe , Dal Santo Alícia , Pagnussatt Heloísa , Calderano Arele Arlindo
Published: November 2021

The objective of this study was to determine choline chloride replacement effects by a vegetable choline source, compost by Trachyspermum amni, Citrullus colocynthis, Achyranthus aspera, and Azadirachta indica in broiler feed. These compounds are fonts of phosphatidylcholine, a high-disponible molecule for intestinal absorption and choline supply. A total of 640 animals were randomly allocated in a completely randomized design, with four treatments and eight repetitions (n = 20), and zootechnical performance (body weight, weight gain, feed conversion ratio, and productive efficiency index), carcass yield, cuts yield, and organs (heart, liver, proventriculus, gizzard, and small intestine) relative weights were evaluated. Were evaluated two choline chloride levels (600 and 800 mg kg-1) and two vegetable choline levels (100 and 200 mg kg-1), added in a corn-soybean meal basal diet, during 42 days of raising. Results revealed better feed conversion ratio (p < 0.001) and production efficiency index (p < 0.001) in broilers fed vegetable choline, with no differences on body weight (p = 0.372) and weight gain (p = 0.427) among broilers. Carcass, cuts yield, and organ relative weights do not alter (p > 0.05) due to different group of supplementations. Findings in this trial concludes vegetable choline can adequately replace choline chloride in broiler feed, with improvement on performance and no compromising carcass, cuts or organ development.
Soybean hulls inclusion on silage of wet brewery waste
Authors: Silva Ana Rebeca Pires da , Dias Fabio Jacobs , Tanaka Ewerton de Souza , Lopes Maycom Marinho , Martins Rodrigo Rener dos Santos , Rufino João Paulo Ferreira
Published: November 2021

This study aimed to evaluate the effects of soybean hulls inclusion in the silage of wet brewery waste. The experimental design was randomized in block, where the treatments were constituted by four levels of soybean hulls on the silage (0, 15, 25, and 35%), with three (silos) replicates per treatment. All data collected were subjected to ANOVA and subsequent polynomial regression at 5%. Soybean hulls inclusion caused a linear increase (p < 0.05) in the pH, dry matter, acid detergent fiber, neutral detergent fiber and total carbohydrates content of the silage. This inclusion also caused a significant reduction (p < 0.05) in the effluent losses and percentages of crude protein, fats, hemicellulose, non-fibrous carbohydrates and total digestible nutrients. Thus, it was concluded that soybean hulls can be used as an additive in the silage of wet brewery waste. Up to 35% of inclusion, there was a significant reduction in the effluent losses, a little increase on pH and enrichment of nutritional content, especially in the dry matter.
Target hazard quotient evaluation of selected trace elements in highly consumed crustacean species in Lagos, Nigeria
Authors: Moruf Rasheed Olatunji
Published: November 2021

Crustaceans are known for their trace element bioaccumulation abilities. Muscle tissues of lagoon crab, marine crab, pink shrimp and mantis shrimp marketed for consumption in Nigeria were analyzed for Mn, Fe, Cu, Zn, Hg and Cr levels using standard methods. Muscle levels in mg kg-1 of Mn (0.03±0.00 in lagoon crab), Fe (0.072±0.01 in mantis shrimp), Cu (0.344±0.01 in lagoon crab) and Zn (0.073±0.00 in mantis shrimp) were significantly different (p<0.05) from their corresponding values in other examined crustaceans. The mean values of Cr and Hg were not significantly different across samples. The estimated daily intake of trace element (mg person-1day-1) revealed that Hg (0.000001) in marine crab contributed the lowest daily intake while Zn (0.000226) in lagoon crab contributed the highest daily intake. Total hazard quotient (THQ) values for the trace elements followed descending order of Hg > Cu > Zn > Fe > Mn > Cr. Lagoon crab showed the highest total hazard index among the organisms with 44.80 %, while the least was observed in mantis shrimp with 13.30 %. It is concluded that, as far as human health is concerned, the mean elemental levels in the muscle tissues of the organisms examined pose no danger (THQ < 1).
Diel variation of aquatic insect drift in streams of Southern Brazil
Authors: Campos Ramiro  de , Rosa Jonathan , Higuti Janet , Buggenhagen Tayane Cristina , Krawczyk Ana Carolina  de Deus Bueno
Published: November 2021

Some organisms, such as aquatic insects, are transported from the upstream to downstream region of streams through a process called drift. This process occurs in passive and active ways and can be variable throughout the day, mainly between the nocturnal and diurnal periods. Here, we evaluate the periodicity of the drift of aquatic insects in two streams of the Middle Iguaçu basin, southern region of Brazil. We predicted that the drift of aquatic insects brings the highest richness, diversity and abundance during the nocturnal period, compared to the diurnal period. In addition, we expected that the composition of species is different between these periods. In each stream, aquatic insect sampling was carried out 10 times, for 24 hours, using drift nets. A total of 2,114 aquatic insect specimens were recorded, distributed in 26 families. Of these families, 20 were recorded during the diurnal period and 24 during the nocturnal period. Our results showed an increase in the diversity and abundance of aquatic insect drift in the nocturnal period. However, only abundance was significantly different between the periods. We attribute the higher abundance in nocturnal drift possibly to biological interactions. Thus, nocturnal drift can be a strategy of some aquatic insects to avoid visual predation by other invertebrates and/or vertebrates, in Neotropical streams. We highlight the importance of our study, because it can be used for comparison in surveys of lotic environments that have been impacted by human activity (e.g. by dam construction), which can alter the water flow, and consequently the pattern of insect drift.
Antifungal activity of homeopathic medicines against the white mold causing agent Sclerotinia sclerotiorum
Authors: Reis Ana Carolina Botelho dos , Ottoni Júlia Ronzella
Published: November 2021

White mold disease, caused by fungus Sclerotinia sclerotiorum (Lib.) de Bary., is a disease hard to control due to the high amount of sclerotia produced, which guarantees its survival in the soil for years leading to significant yield losses. Alternative techniques to control the pathogen have been researched, including homeopathy. The present work aimed to evaluate the in vitro antifungal effect of homeopathic medicines on S. sclerotiorum mycelial growth. Homeopathic medicines Sulphur, fungal sclerotium Nosode and Calcarea carbonica, in 30CH, 200CH and 1000CH dynamizations were tested. Assays were carried out in a completely randomized design, with four repetitions. Experiments were performed through the addition of homeopathic medicines on the surface of plates containing culture medium, followed by insertion of a disc containing fungus mycelia and incubation. Control treatment received no homeopathic medicine. The mycelial progression was monitored by seven halo diameter measurements during experiment period. All homeopathic medicines tested and their dynamizations were able to inhibit partially the development of the fungus. Calcarea carbonica at the dynamization of 1000 CH showed the best inhibitory effect on S. sclerotiorum, which under its effect produced a mycelial halo 40% smaller than the control treatment.
In vitro cytotoxic and genotoxic effects of Cissus verticillata and Sphagneticola trilobata used for treatment of Diabetes Mellitus in Brazilian folk medicine
Authors: Schmitz Ana Paula , Weimer Patrícia , Weschenfelder Aline Maria , Hansen Alana Witt , Maluf Rage Weidner , Rossi Rochele Cassanta , Basso Luciano da Silva , Ziulkoski Ana Luiza , Perassolo Magda Susana , Suyenaga Edna Sayuri
Published: November 2021

Cissus verticillata and Sphagneticola trilobata have been used in Brazilian folk medicine for Diabetes Mellitus treatment, although their pharmacological and toxicological profile has not been clearly established. Thus, the aim of this study was to evaluate the preclinical toxicity of the aqueous extracts of C. verticillata and S. trilobata. The main groups of secondary metabolites were investigated, and the species differed by the presence of coumarins in C. verticillata and by tannins in S. trilobata extracts. The highest contents of phenolic compounds and flavonoids were quantified in C. verticillata infusion with 2.594 ± 0.04 mg equivalents of gallic acid g-1 of extract and 1.301 ± 0.015 mg equivalents of catechin g-1 of extract, respectively. While the extract of S. trilobata showed minimum values of these compounds, with 0.002 ± 0.001 mg equivalents of gallic acid g-1 extract and 0.005 ± 0.0004 mg equivalents of catechin g-1 of extract, respectively. These differences implied the results of in vitro antioxidant activity evaluated using ferric reducing antioxidant power (FRAP), in which the sample of C. verticillata at 5 mg mL-1 showed a value of 122 µM ferrous sulfate equivalents (FSE), while S. trilobata showed 0.93 µM FSE at the same concentration. With respect to cytotoxic assay with murine fibroblast cell line (3T3) only S. trilobata exhibited cytotoxic effects measured by MTT and Sulforhodamine B assays, evidenced by the cell viability value of approximately 16%, in both tests after 24 and 72 hours of exposure of the cells to 5 mg mL-1 of the extract. Comparatively, at 5 mg mL-1 the C. verticillata extract showed cell viability of 142% and 95%, respectively, after 24 hours of cell exposure. On the other hand, both species showed genotoxic profiles evidenced by chromosomal aberrations by Allium cepa bioassay, observed by the higher percentage values of chromosome bridges, chromosome loss, and disturbed anaphase for all concentrations of both extracts than those of the negative control. The results support the characterization of the toxicological profile for both species and create an alert regarding the use of S. trilobata, which should be avoided.
Eficiência pedagógica e o projeto desenvolvimentista brasileiro: fundamentos de uma ‘neodocência’ no ensino secundário
Authors: Sfredo Marta Luiza , Silva Roberto Rafael Dias da
Published: November 2021

Este artigo problematiza a relação entre o projeto desenvolvimentista brasileiro, dimensionado para o país nas décadas de 1950 e 1960, e o ensino secundário, a partir do ideário de modernização orientado para o progresso social e econômico, com ênfase na escola e na docência como elementos capazes de viabilizar as mudanças pretendidas, conforme os preceitos da teoria do Capital Humano. Para isto, a metodologia utilizada envolveu a análise documental, de acordo com os pressupostos de Cellard (2008), tendo como princípios metodológico-interpretativos as teorizações de Popkewitz (1997), envolvendo a ‘epistemologia social’. Com base nestes apontamentos, foram analisados três materiais impressos destinados aos docentes do ensino secundário: revista ‘Escola Secundária’, publicada entre 1958 e 1963, e os livros ‘Manual do professor Secundário’, de Theobaldo Miranda Santos, publicado em 1961 e ‘Escola Secundária Moderna’, de Lauro de Oliveira Lima, publicado em 1962. Os resultados da pesquisa indicam a emergência de novas racionalidades para a docência do ensino secundário no Brasil, denominadas de ‘neodocência’, pautadas pelos imperativos de desenvolvimento econômico, seguindo os moldes empresariais de performatividade, competitividade e inovação permanente. Tais configurações, derivadas da perspectiva economicista neoliberal, posicionam o professor como facilitador da aprendizagem, com base no ideal de modernização e renovação do ensino, orientado para a eficiência pedagógica.
Conhecimento tecnológico e pedagógico do conteúdo (tpack) na construção do saber docente virtual: uma revisão sistemática
Authors: Assis Mário dos Santos de , Vieira-Santos Joene
Published: November 2021

A partir da revisão sistemática da literatura, observando a recomendação Prisma, o artigo analisou como a literatura nos anais do Congresso Internacional de Educação e Tecnologias e Encontro de Pesquisadores em Educação a Distância (Ciet:EnPED) tem abordado as competências Tpack proposta por Mishra e Koehler na construção do saber docente virtual. As buscas – utilizando os descritores (a) Tpack, (b) TPCK, (c) conhecimento pedagógico tecnológico de conteúdo, (d) technological pedagogical content knowledge, (e) Mishra, (f) Shulman, (g) saberes docentes e (h) base de conhecimento para ensino – resultaram na seleção de seis artigos que abordavam o Tpack na atuação do docente virtual. Os artigos analisados indicaram que o modelo teórico Tpack mostra-se viável para compreender o processo de apropriação do uso de tecnologias na educação pelos docentes, servindo também de fonte para construção da docência virtual. Além disso, os resultados alcançados pelos artigos analisados corroboram os postulados propostos por Tardif (2012) e Shulman (1987), sugerindo que a base de conhecimento para docência virtual é formada por um conjunto de saberes decorrentes da formação, do aprendizado experiencial e saberes construídos na interação com seus pares. Uma vez que esta revisão se ateve aos anais do Ciet:EnPED, sugere-se que estudos futuros utilizem outras bases de dados para verificar se os resultados aqui descritos são replicáveis. Além disso, sugere-se que novas pesquisas examinem os fatores que interferem na atuação do docente virtual, aprofundando a compreensão do processo de construção do saber docente virtual, bem como possíveis diferenças nos saberes necessários para a docência virtual em função dos diferentes profissionais que compõem a equipe.
Epidemiological profile of orthopedics and traumatology patients in Palmas, Tocantins, Brazil
Authors: Silva Ediana Vasconcelos da , Leite Kércio Jeaneryson Nogueira de Sousa , Aversi-Ferreira Roqueline Ametila e Gloria Martins de Freitas , Aversi-Ferreira Tales Alexandre
Published: November 2021

Epidemiological studies, both in general and specifically, are part of the health promotion process and prophylactic actions that can generate treatment plans for a population, however, the accomplishment of prophylactic work in relation to musculoskeletal (i.e., traumatological) problems must start from the specific and go to the general, from cities to a national plan, since each population has its own characteristics in the general picture of conditions. Hypothetically, the epidemiological profile in traumatology and orthopedics, due to the general behavior in the national territory, presents the lack of prevention; in this way, is necessary to verify. This work aims to determine the incidence of orthopedic and traumatological problems in the region of Palmas, state of Tocantins (TO), Brazil, in order to contribute to a possible prophylactic plan for the population of the region. The data of the present study agree with most other studies about the orthopedic profile in terms of gender, age and problems with vertebral column, in general. However, the finding that most of the conditions were associated with scoliosis was unexpected, as it differs from the findings of most studies. It was possible to establish a profile of patients seen at the clinic-school and indicate the management of training for health professionals related to the treatment of people over the age of 40 years. The importance of the action of physiotherapists in the processes of prevention and primary care was evident given the patients indicated in this and other articles who need help with traumatic diseases.
Green synthesis: characterization and biological activity of silver nanoparticles using aqueous extracts of plants from the Arecaceae family
Authors: Lima Alan Kelbis Oliveira , Vasconcelos Arthur Abinader , Kobayashi Renata Katsuko Takayama , Nakazato Gerson , Braga Hugo de Campos , Taube Paulo Sérgio
Published: November 2021

This study proposes the preparation, characterization, and evaluation of the antimicrobial activity of silver nanoparticles (AgNPs). AgNPs were synthesized from the leaf extracts of plants from the Arecaceae family, which are abundant in the Amazon region. AgNPs were characterized using UV/Vis spectroscopy, Fourier Transform Infrared Spectroscopy (FTIR), dynamic light scattering (DLS), and their minimum inhibitory concentrations (MIC) against the bacteria Escherichia coli and Staphylococcus aureus. AgNPs presented maximum absorbance between 420 and 430 nm, the mean diameter obtained by DLS ranged from 130.43 to 352.93 nm and the polydispersity index (PdI) ranged from 0.523 to 0.689. The surface charge measured by the Zeta potential was negative and ranged from -17.2 to -26.97 mV. FTIR analysis suggests that the phenolic compounds and/or proteins in the chemical composition of the plants studied may have been responsible for the reduction of Ag+ ions and stabilization of AgNPs. The morphology of AgNPs observed was largely spherical and presented some agglomerates. Transmission electron microscopy analyses showed polydispersed AgNPs without the formation of large agglomerates. The synthesized AgNPs presented homogeneity and rapid bioreduction. The concentration of AgNPs required to eliminate microorganisms by up to 90% was lower for Gram-negative bacteria (2.75 μg mL-1) than for Gram-positive bacteria (21.75 μg mL-1). In addition, AgNPs synthesized from plant species that are native to the Amazon proved to be promising, since they showed excellent antimicrobial activity against microorganisms of clinical interest.