bluuebunny/crossref_metadata_2025 huggingface dataset:
Qualitative Analysis of Glass Microfragments Using the Combination of Laser-Induced Breakdown Spectroscopy and Refractive Index Data
Authors: Palásti Dávid Jenő , Kopniczky Judit , Vörös Tamás , Metzinger Anikó , Galbács Gábor
Published: April 2022

We have successfully demonstrated that although there are significant analytical challenges involved in the qualitative discrimination analysis of sub-mm sized (microfragment) glass samples, the task can be solved with very good accuracy and reliability with the multivariate chemometric evaluation of laser-induced breakdown spectroscopy (LIBS) data or in combination with pre-screening based on refractive index (RI) data. In total, 127 glass samples of four types (fused silica, flint, borosilicate and soda–lime) were involved in the tests. Four multivariate chemometric data evaluation methods (linear discrimination analysis, quadratic discrimination analysis, classification tree and random forest) for LIBS data were evaluated with and without data compression (principal component analysis). Classification tree and random forest methods were found to give the most consistent and most accurate results, with classifications/identifications correct in 92 to 99% of the cases for soda–lime glasses. The developed methods can be used in forensic analysis.
Drone-Fleet-Enabled Logistics: A Joint Design of Flight Trajectory and Package Delivery
Authors: Jia Yunjian , Zhang Yi , Luo Kun , Wen Wanli
Published: April 2022

In this work, we focus on a drone-fleet-enabled package delivery scenario, in which multiple drones fly from a start point and cooperatively deliver packages to the ground users in the presence of a number of no-fly zones (NFZs). We first mathematically model the package delivery scenario in a rigorous manner. Then, a package value maximization problem is established to optimize the flight trajectory and package delivery under the constraints of drone load and collision as well as NFZs. The formulated problem is a highly challenging mixed-integer non-convex problem. To facilitate solving it, we transform the formulated problem into an equivalent problem with special structure by using some appropriate transformations, based on which a low-complexity algorithm with favorable performance is developed using the penalty convex–concave procedure method. Finally, numerical results demonstrate the superiority of the proposed solution.
Image Super-Resolution via Dual-Level Recurrent Residual Networks
Authors: Tan Congming , Wang Liejun , Cheng Shuli
Published: April 2022

Recently, the feedforward architecture of a super-resolution network based on deep learning was proposed to learn the representation of a low-resolution (LR) input and the non-linear mapping from these inputs to a high-resolution (HR) output, but this method cannot completely solve the interdependence between LR and HR images. In this paper, we retain the feedforward architecture and introduce residuals to a dual-level; therefore, we propose the dual-level recurrent residual network (DLRRN) to generate an HR image with rich details and satisfactory vision. Compared with feedforward networks that operate at a fixed spatial resolution, the dual-level recurrent residual block (DLRRB) in DLRRN utilizes both LR and HR space information. The circular signals in DLRRB enhance spatial details by the mutual guidance between two directions (LR to HR and HR to LR). Specifically, the LR information of the current layer is generated by the HR and LR information of the previous layer. Then, the HR information of the previous layer and LR information of the current layer jointly generate the HR information of the current layer, and so on. The proposed DLRRN has a strong ability for early reconstruction and can gradually restore the final high-resolution image. An extensive quantitative and qualitative evaluation of the benchmark dataset was carried out, and the experimental results proved that our network achieved good results in terms of network parameters, visual effects and objective performance metrics.
Anthropomorphic Robotic Eyes: Structural Design and Non-Verbal Communication Effectiveness
Authors: Penčić Marko , Čavić Maja , Oros Dragana , Vrgović Petar , Babković Kalman , Orošnjak Marko , Čavić Dijana
Published: April 2022

This paper shows the structure of a mechanical system with 9 DOFs for driving robot eyes, as well as the system’s ability to produce facial expressions. It consists of three subsystems which enable the motion of the eyeballs, eyelids, and eyebrows independently to the rest of the face. Due to its structure, the mechanical system of the eyeballs is able to reproduce all of the motions human eyes are capable of, which is an important condition for the realization of binocular function of the artificial robot eyes, as well as stereovision. From a kinematic standpoint, the mechanical systems of the eyeballs, eyelids, and eyebrows are highly capable of generating the movements of the human eye. The structure of a control system is proposed with the goal of realizing the desired motion of the output links of the mechanical systems. The success of the mechanical system is also rated on how well it enables the robot to generate non-verbal emotional content, which is why an experiment was conducted. Due to this, the face of the human-like robot MARKO was used, covered with a face mask to aid in focusing the participants on the eye region. The participants evaluated the efficiency of the robot’s non-verbal communication, with certain emotions achieving a high rate of recognition.
Single-Element and MIMO Circularly Polarized Microstrip Antennas with Negligible Back Radiation for 5G Mid-Band Handsets
Authors: Alnahwi Falih M. , Al-Yasir Yasir I. A. , See Chan Hwang , Abd-Alhameed Raed A.
Published: April 2022

In this paper, single-element and MIMO microstrip antenna with two pairs of unequal slits is proposed as a circularly polarized antenna with negligible back radiation for 5G mid-band handsets. The unequal pairs of slits are engraved on the antenna patch to guarantee the presence of the circular polarization (CP). The proximity-coupled feeding technique is used to excite the proposed microstrip antenna in order to provide larger antenna −10 dB bandwidth which approaches 10.8% (3.48–3.87 GHz). A novel analysis technique is proposed in this paper that demonstrates the 3D axial ratio pattern in order to generate CP in the broadside direction without affecting the structure of the ground plane which ensures weak back radiation. The 3 dB axial ratio bandwidth (ARBW) is found to be equal to 4.1% extended along the range (3.58–3.73 GHz). To make the design more compatible with the 5G mid-band handsets, the 2 × 2 MIMO structure of the proposed antenna with reduced mutual coupling (less than −20 dB) is also presented in this work. The simulation and measured results are in good agreement, and both verify the CP characteristics and the weak back radiation of the proposed antenna.
Face Biometric Spoof Detection Method Using a Remote Photoplethysmography Signal
Authors: Kim Seung-Hyun , Jeon Su-Min , Lee Eui Chul
Published: April 2022

Spoofing attacks in face recognition systems are easy because faces are always exposed. Various remote photoplethysmography-based methods to detect face spoofing have been developed. However, they are vulnerable to replay attacks. In this study, we propose a remote photoplethysmography-based face recognition spoofing detection method that minimizes the susceptibility to certain database dependencies and high-quality replay attacks without additional devices. The proposed method has the following advantages. First, because only an RGB camera is used to detect spoofing attacks, the proposed method is highly usable in various mobile environments. Second, solutions are incorporated in the method to obviate new attack scenarios that have not been previously dealt with. In this study, we propose a remote photoplethysmography-based face recognition spoofing detection method that improves susceptibility to certain database dependencies and high-quality replay attack, which are the limitations of previous methods without additional devices. In the experiment, we also verified the cut-off attack scenario in the jaw and cheek area where the proposed method can be counter-attacked. By using the time series feature and the frequency feature of the remote photoplethysmography signal, it was confirmed that the accuracy of spoof detection was 99.7424%.
High-Speed Continuous Wavelet Transform Processor for Vital Signal Measurement Using Frequency-Modulated Continuous Wave Radar
Authors: Bae Chanhee , Lee Seongjoo , Jung Yunho
Published: April 2022

This paper proposes a high-speed continuous wavelet transform (CWT) processor to analyze vital signals extracted from a frequency-modulated continuous wave (FMCW) radar sensor. The proposed CWT processor consists of a fast Fourier transform (FFT) module, complex multiplier module, and inverse FFT (IFFT) module. For high-throughput processing, the FFT and IFFT modules are designed with the pipeline FFT architecture of radix-2 single-path delay feedback (R2SDF) and mixed-radix multipath delay commutator (MRMDC) architecture, respectively. In addition, the IFFT module and the complex multiplier module perform a four-channel operation to reduce the processing time from repeated operations. Simultaneously, the MRMDC IFFT module minimizes the circuit area by reducing the number of non-trivial multipliers by using a mixed-radix algorithm. In addition, the proposed CWT processor can support variable lengths of 8, 16, 32, 64, 128, 256, 512, and 1024 to analyze various vital signals. The proposed CWT processor was implemented in a field-programmable gate array (FPGA) device and verified through the measurement of heartbeat and respiration from an FMCW radar sensor. Experimental results showed that the proposed CWT processor can reduce the processing time by 48.4-fold and 40.7-fold compared to MATLAB software with Intel i7 CPU. Moreover, it can be confirmed that the proposed CWT processor can reduce the processing time by 73.3% compared to previous FPGA-based implementations.
Development of a Soft Sensor for Flow Estimation in Water Supply Systems Using Artificial Neural Networks
Authors: Lima Robson Pacífico Guimarães , Mauricio Villanueva Juan Moises , Gomes Heber Pimentel , Flores Thommas Kevin Sales
Published: April 2022

A water supply system is considered an essential service to the population as it is about providing an essential good for life. This system typically consists of several sensors, transducers, pumps, etc., and some of these elements have high costs and/or complex installation. The indirect measurement of a quantity can be used to obtain a desired variable, dispensing with the use of a specific sensor in the plant. Among the contributions of this technique is the design of the pressure controller using the adaptive control, as well as the use of an artificial neural network for the construction of nonlinear models using inherent system parameters such as pressure, engine rotation frequency and control valve angle, with the purpose of estimating the flow. Among the various contributions of the research, we can highlight the suppression in the acquisition of physical flow meters, the elimination of physical installation and others. The validation was carried out through tests in an experimental bench located in the Laboratory of Energy and Hydraulic Efficiency in Sanitation of the Federal University of Paraiba. The results of the soft sensor were compared with those of an electromagnetic flux sensor, obtaining a maximum error of 10%.
Decolonizing Digital Citizen Science: Applying the Bridge Framework for Climate Change Preparedness and Adaptation
Authors: Bhawra Jasmin
Published: April 2022

Research has historically exploited Indigenous communities, particularly in the medical and health sciences, due to the dominance of discriminatory colonial systems. In many regions across Canada and worldwide, historical and continued injustices have worsened health among Indigenous Peoples. Global health crises such as climate change are most adversely impacting Indigenous communities, as their strong connection to the land means that even subtle changes in the environment can disproportionately affect local food and health systems. As we explore strategies for climate change preparedness and adaptation, Indigenous Peoples have a wealth of Traditional Knowledge to tackle specific climate and related health issues. If combined with digital citizen science, data collection by citizens within a community could provide relevant and timely information about specific jurisdictions. Digital devices such as smartphones, which have widespread ownership, can enable equitable participation in citizen science projects to obtain big data for mitigating and managing climate change impacts. Informed by a Two-Eyed Seeing approach, a decolonized lens to digital citizen science can advance climate change adaptation and preparedness efforts. This paper describes the ‘Bridge Framework’ for decolonizing digital citizen science using a case study with a subarctic Indigenous community in Saskatchewan, Canada.
Germination of Triticum aestivum L.: Effects of Soil–Seed Interaction on the Growth of Seedlings
Authors: Chaichi Mehrdad , Nemati Ahmad , Dadrasi Amir , Heydari Moslem , Hassanisaadi Mohadeseh , Yousefi Ali Reza , Baldwin Timothy C. , Mastinu Andrea
Published: April 2022

Seed size, sowing depth, and seed disinfection can affect seed germination and seedling establishment, which, in turn, can directly affect crop growth and yield. The current study was comprised of two experiments, the first of which was conducted in the laboratory, and a second which was performed under glasshouse conditions. The objective of these experiments was to investigate the effects of seed size, sowing depth, and seed disinfection on seed germination and initial seedling growth of selected wheat (Triticum aestivum L.) cultivars. The treatments in laboratory experiment were arranged in a completely randomized design, which included: (Ι) four wheat cultivars (Pishgam, Haydari, Soissons, and Mihan), (ΙΙ) two seed size classes (x < 2.25 mm, and x > 2.25 mm), and two disinfection treatments (no-disinfection and disinfection), (ΙΙΙ) with five replicates. In addition to the aforementioned treatments, the effect of planting depth (4, 6, and 8 cm) was also investigated in the subsequent glasshouse experiment. The best results were obtained at a sowing depth of 4 cm, in the non-disinfected treatment, using large seeds. In contrast, the lowest percentage and speed of seed germination and vigor index were observed in seeds sown at 8 cm depth, in the disinfected seed treatment, using small seeds. Large seeds contain larger nutrient stores which may improve seed germination indices, which would therefore result in improved percentage and speed of seed germination, followed by faster coleoptile and seedling growth, higher seedling dry weight and seed vigor. These data also illustrated that seed disinfection in the Pishgam and Haydari cultivars had inhibitory effects upon coleoptile growth and seedling length, which could be related to the fungicide’s chemical composition. Unlike other cultivars, disinfection did not show a significant effect on the Soissons cultivar. Based on our data, in order to improve both the speed of wheat seed germination and subsequent plant growth and development; it is necessary to select high-quality, large seeds, planted at a specific planting depth, which have been treated with an effective disinfectant; all of which will be specific for the wheat cultivar in question. Overall, the current study has provided useful information on the effect size seed, sowing depth, and disinfection have upon germination characteristics and seedling growth of wheat cultivars, which can form the basis for future field scale trails.
An Electron Waveguide Model for FDSOI Transistors
Authors: Wulf Ulrich
Published: April 2022

We extend our previous semi-empirical model for quantum transport in a conventional nano-MOSFET to FDSOI transistors. In ultra-thin-body and -BOX (UTBB) FDSOI transistors, the electron channel can be treated as an electron waveguide. In the abrupt transition approximation, it is possible to derive an analytical approximation for the potential seen by the charge carriers. With these approximations we calculate the threshold voltage and the transfer characteristics, finding remarkably good agreement with experiments in the OFF-state given the relative simplicity of our model. In the ON-state, our theory fails because Coulomb interaction between the free charge carriers and the device heating is neglected in our approach.
ordinalbayes: Fitting Ordinal Bayesian Regression Models to High-Dimensional Data Using R
Authors: Archer Kellie J. , Seffernick Anna Eames , Sun Shuai , Zhang Yiran
Published: April 2022

The stage of cancer is a discrete ordinal response that indicates the aggressiveness of disease and is often used by physicians to determine the type and intensity of treatment to be administered. For example, the FIGO stage in cervical cancer is based on the size and depth of the tumor as well as the level of spread. It may be of clinical relevance to identify molecular features from high-throughput genomic assays that are associated with the stage of cervical cancer to elucidate pathways related to tumor aggressiveness, identify improved molecular features that may be useful for staging, and identify therapeutic targets. High-throughput RNA-Seq data and corresponding clinical data (including stage) for cervical cancer patients have been made available through The Cancer Genome Atlas Project (TCGA). We recently described penalized Bayesian ordinal response models that can be used for variable selection for over-parameterized datasets, such as the TCGA-CESC dataset. Herein, we describe our ordinalbayes R package, available from the Comprehensive R Archive Network (CRAN), which enhances the runjags R package by enabling users to easily fit cumulative logit models when the outcome is ordinal and the number of predictors exceeds the sample size, P>N, such as for TCGA and other high-throughput genomic data. We demonstrate the use of this package by applying it to the TCGA cervical cancer dataset. Our ordinalbayes package can be used to fit models to high-dimensional datasets, and it effectively performs variable selection.
Propiedades del queso artesanal elaborado a partir de vacas lecheras alimentadas con pastos tropicales y alimento comercial
Authors: Mecias Moreira Luis Fernando , Cuenca Nevárez Gerardo José , Intriago Flor Frank Guillermo , Talledo Solórzano Maritza Viviana
Published: April 2022

El objetivo de este trabajo fue determinar las propiedades del queso artesanal, el cual fue elaborado a partir de vacas lecheras alimentadas con pastos tropicales Brachiaria decumbens; Panicum maximum como fuente única de alimentación isocalórica en función de un concentrado comercial. Se pudo determinar que el rendimiento de leche por parte de las vacas se ubicó entre 10,57 y 11,73 kg vaca día-1. Posteriormente, se elaboró queso a partir de cada uno de los tratamientos; luego, se realizó un análisis del producto el  mismo que se determinó que cumple con los criterios de calidad tanto composicionales químicos como de higiene sanitaria contemplados en la Normativa Técnica NTE INEN 1528; en cuanto al porcentaje de rendimiento tenemos que fue ligeramente bajo entre el 3,52 y 3,91 mientras que los indicadores de eficiencia tecnológica en lo que tiene que ver al  aprovechamiento de caseína 51,74 a 52,84% y aprovechamiento de grasa 32,99 a 34,68%; esto califica al producto como un queso fresco que todavía genera suero, razón por la cual los componentes de la leche no son aprovechados de buena manera.
Palabras clave: lecherías; energía metabolizable; producción de leche; queso artesanal; caseína
Evaluación de la aptitud reproductiva de toros mestizos en el trópico seco en explotación extensiva como predictor de la relación toro/vaca
Authors: Macías Moreira Yandri Andrés , Zambrano Villacís Juan José , Zambrano Aguayo Marina Dalila , Zambrano Alcívar Edgardo Radami , Andrade Yucailla Verónica Cristina
Published: April 2022

El objetivo del estudio fue evaluar la condición reproductiva de los toros mestizos en el trópico seco en condiciones de explotación extensiva, analizando la calidad del semen y otras características reproductivas asociadas a la fertilidad. La investigación se realizó en los meses de septiembre a octubre del 2018, en el cantón Rocafuerte, ubicado en la zona tropical seca de la provincia Manabí, Ecuador. Se evaluaron la circunferencia escrotal y calidad espermática de 60 toros mestizos de diferentes cruces raciales y edades, bajo condiciones de monta natural y sin reposo sexual antes del examen. Las muestras de semen se obtuvieron mediante electro eyaculación, con el mínimo impacto sobre el bienestar de los toros. La circunferencia escrotal media fue de 33,1 cm, con un rango de 28 a 39,5 cm. Se encontró que el 75 % de toros son aptos para monta natural por la concentración de espermas de buena a muy buena y, la morfología de los mismos. Además, el 68,33 % presentó una concentración espermática superior al estándar, se pudo establecer que los toros están siendo utilizados para la monta a una relación del 5 %, sin tener en cuenta la capacidad de servicio. Por lo que es importante la aplicación del examen andrológico como un predictor de la relación toro/vaca en monta natural y descartar los toros con problemas de subfertilidad, mejorando así la eficiencia reproductiva del semental, teniendo un gran impacto socioeconómico en el sector ganadero de la región del Litoral ecuatoriano.
Palabras clave: Andrología; Circunferencia escrotal; Concentración espermática; Morfología espermática; Semen bovino
Germinación de Coffea arabica L. var. Sarchimor con bioestimulantes y efecto posterior de estos sobre el crecimiento de plántulas
Authors: Pincay Menéndez Joffre Daniel , Héctor Ardisana Eduardo Fidel , Torres García Antonio , Fosado Téllez Osvaldo
Published: April 2022

En el fomento de nuevas plantaciones de cafeto, un elemento decisivo es el empleo de posturas vigorosas. El objetivo de esta investigación fue evaluar el efecto de productos bioestimulantes sobre la germinación de café arábigo (Coffea arabica L.) var. Sarchimor y el posible efecto de estos tratamientos sobre el posterior crecimiento de las plántulas en el vivero. El material de siembra empleado fue semillas de la variedad Sarchimor C-1669. Se evaluaron tres bioestimulantes: lixiviado de vermicompost de estiércol bovino en concentraciones de 1:10 (v:v) y 2:10 (v:v); Trichoderma spp. en concentraciones de 2 ml L-1 de 1x109 (UFC ml-1) y 4 ml L-1 de 1x109 (UFC ml-1) y microrganismos eficientes en concentraciones de 1:10 (v:v) y 2:10 (v:v), usando agua como testigo. Las variables evaluadas fueron: porcentaje de germinación (entre los 30 y 45 días posteriores a la siembra), altura de la plántula (cm) y diámetro de tallo (mm); estas últimas se midieron a los 60, 90 y 120 días después de la aparición de los cotiledones. Se utilizó un diseño completamente aleatorizado, con 7 tratamientos y 4 repeticiones. Los datos se sometieron a análisis de varianza y las medias se compararon con la prueba de Tukey (p<0,05). Se observó que los tres productos estimularon la germinación y el crecimiento con respecto al testigo, destacándose el efecto de Trichoderma spp. (4 ml L-1 de 1x109 UFC ml-1) en la altura de planta y el diámetro del tallo. Se recomienda el empleo de estos bioestimulantes en los viveros para la producción de material de siembra de esta variedad de cafeto y su estudio en otras variedades de esta especie.
Palabras clave: fisiología vegetal; cafeto; bioestimulación
Aprovechamiento del pinzote de banano (musa paradisiaca) en la elaboración de papel
Authors: Burgos Briones Gabriel Alfonso , Mendoza Vélez Cristhian Javier , Mendoza Pico Carlos Efraín , Bedón Arteaga Viviana Gisell , Alcívar Cedeño Ulbio Eduardo
Published: April 2022

La Musa Paradisiaca es una variedad de plátano muy consumido en la región Costa del medio ecuatoriano y su residuo es muy poco aprovechado, debido a que requiere de varios procesos para poder convertirlo en algún subproducto. El objetivo del presente trabajo consistió en evaluar la mejor concentración de hidróxido de sodio (NaOH) para lograr obtener un papel de textura suave y color ámbar a partir de la celulosa obtenida del pinzote de banano. El trabajo experimental, se lo realizó en el Laboratorio de Química de la Universidad Técnica de Manabí, según bibliografías científicas. Se determinó la concentración de (NaOH) a 10, 15 y 20%, mediante el método de titulación con el reactivo Ftalato ácido de Potasio (C8H5KO4), fracciones que se aplicaron en los diversos procedimientos para la obtención del papel, esto para lograr identificar concentración fue la más idónea para el producto deseado, para lo cual se tuvo en cuenta la forma física, contextura y durabilidad del producto. Como resultados se evidenció que el ensayo con mejores resultados físicos fue al adicionar 20% de NaOH a 120ºC en un tiempo de 120 minutos, aunque el rendimiento fue el de menor porcentaje fue el papel con mejor textura, se concluye que la variedad utilizada en nuestro medio puede ser de gran aporte como subproducto, no obstante, es importante mencionar que el (NaOH) en grandes cantidades se vuelve un contaminante es por esto necesario sustituir este compuesto químico por otros más amigables con el medio ambiente.
Palabras clave: celulosa, concentraciones, temperatura, tiempo, residuo
Estabilidad de néctar mix de pulpa de naranja (Citrus sinnensis) y mandarina (Citrus reticulata) con goma xanthan y cmc
Authors: Macías Andrade Edison Fabian , Demera Lucas Francisco Manuel , Zambrano Mendoza Luisa Ana , Sacón-Vera Ely Fernando , Saltos Solorzano Julio Vinicio , Zambrano Mendoza Byron Antonio
Published: April 2022

El objetivo de la presente investigación fue evaluar la estabilidad de un néctar mix de pulpa naranja (Citrus sinnensis) y mandarina (Citrus reticulata) con goma xanthan y CMC. Los factores en estudios fueron dos: A: tipos de estabilizantes (goma xanthan y CMC) y B: porcentaje de pulpa de naranja y mandarina (50/50, 60/40 y 70/30). El diseño experimental aplicado fue un DCA con arreglo bifactorial A*B (2x3), resultando seis tratamientos con tres réplicas por cada uno de ellos. Para cada unidad experimental se emplearon 240 mL de néctar mix, constituido de pulpa, agua, azúcar y estabilizante. Se evaluaron las variables físico-químicos (Acidez, pH, densidad y estabilidad), para el análisis de los datos se utilizó el programa estadístico SPSS versión 22. Como conclusión el néctar mix de naranja y mandarina evidenció que las variables pH cuyo valor son menores a 4,5 como lo indica la Norma INEN 2337:2008, densidad (1,064 a 1,069 g/mL) y 0% de sedimentación presentaron las mejores características físico químicas en los T1, T2 y T3 empleando goma xanthan.
Palabras clave: Cítricos; néctar; naranja
Identification d'un potier prédynastique
Authors: Livingstone-Smith Alexandre
Published: April 2022

Identification of a predynastic potter.

Six predynastic “D Ware” vases belonging to several Museum collections are examined. The analysis of the technical procedure involved in the production of the decorative figures and the similarity of a number of details seem to suggest that the decoration of these vases were made by painters working in the same workshop, or by a single artist.
Symbolic roles of canine figures on early monuments
Authors: Baines John
Published: April 2022

Les représentations de canidés sur les monuments de la fin de l'époque prédynastique se répartissent en chacals, chiens sauvages (lycaon pictus) — qui sont très proéminents — chiens domestiques, dont plusieurs races sont distinguées. Les chiens sauvages, animaux des marges désertiques de la Vallée du Nil, semblent symboliser les marges du cosmos ordonné. Ils sont absents des reliefs de l'époque dynastique. Ils ne participent pas directement aux scènes de chasse organisée par des hommes. L'attention prêtée aux chiens domestiques se laisse peut-être expliquer par l'esprit de compétition parmi l’élite. Il convient de comparer l'iconographie des canidés et celle des lions. L'apparition du roi au centre du système décoratif dynastique et l'identification du roi et du lion ont influencé profondément le rôle des canidés.

Les canidés de l'époque dynastique se répartissent plus nettement en chacals et chiens domestiques. Les dieux canidés sont des chacals. Ils gardent beaucoup du symbolisme des chiens sauvages prédynastiques, mais dans un contexte différent.
Matière première et commerce à longue distance : le lapis-lazuli et l’Égypte prédynastique
Authors: Bavay Laurent
Published: April 2022

Le lapis-lazuli n’existe pas à l’état naturel en Égypte. Les gisements les plus proches se situent dans le Nord-Est de l’Afghanistan, à quelque 4 000 km de la vallée du Nil. Son apparition dans les tombes prédynastiques correspond à une phase d’intensification des relations commerciales. Nagada III marque une modification sensible de la répartition du lapis-lazuli, qui pourrait être mise en relation avec le contrôle des ressources et du commerce par l’élite dominante.
Le mobilier céramique et les offrandes à caractère alimentaire au sein des dépôts funéraires prédynastiques : éléments de réflexion à partir de l’exemple d’Adaïma.
Authors: Buchez Nathalie
Published: April 2022

The pharaonic funerary conceptions go back to the predynastic, when this civilization took shape in a process that accelerated with time. Since this age, the custom of deposing jx)ttery with the dead, as an offering by itself as well as a receptacle for a food offering, real or fictitious, originates in the need to furnish means of living in the next world. This does not mean that the pottery found in tombs is representative of the household inventory. The pots deposed with the dead are chosen with a specific function, as containers and useful accessories, necessary to the meal, yet, perhaps, substituts to the food-offering itself. Some pots have simply followed the dead to the grave as personal objects, the bowl in which he ate placed before his face or within arms reach. A personal object or symbolic, such as the flint knife of the workman, the pot represents, more rarely however, the deceased. The multiplicity of values conveyed by the objects in the funerary context is such as to render simplistic a solely statistical approach.
Rock art from West Bank Aswan and Wadi Abu Subeira
Authors: Gatto Maria Carmela , Hendrickx Stan , Roma Sara , Zampetti Daniela
Published: April 2022

Since 2005 the “Aswan-Kom Ombo Archaeological Project” has been working on the rock art sites from Gharb Aswan and Wadi Abu Subeira. Many are the localities recorded up until now, mainly along the river and on wadi bottoms. The representations are dated from prehistory to the Islamic Period and show a variety of subjects : wild animals, cattle, boats, camels, human fi gures etc. Hereafter three of those sites will be described in detail : two are located in Gharb Aswan, midway between Aswan and Kubbaniya and the third is located south of Wadi Abu Subeira.
Patient Health Engagement Model as the Predictor of Social Support, Self-efficacy, and Quality of Life in Breast Cancer Patients
Authors: Changizi Maryam , Ghahremani Leila , Ahmadloo Nilofar , Kaveh Mohamad Hossein
Published: April 2022

Background: Patient health engagement (PHE) is a dynamic and evolutionary process that involves improving health; however, little information is available on the PHE model. This study aimed to investigate health engagement and its relationship with social support, self-efficacy, and the quality of life in women with breast cancer. Methods: This cross-sectional study was conducted on 129 breast cancer patients who were referred to a specialized medical clinic and met the inclusion criteria. Data were collected using the EORTC QLQ-br23 questionnaire, Communication and Attitudinal Self-efficacy Scale for Cancer (19-item), Perceived Social Support Scale, NCCN Distress Thermometer, and PHE Scale. The statistical methods used in this study were linear regression, ANOVA, CATREG (Categorical regression with optimal scaling using alternating least squares), and descriptive statistics. Results: The most commonly reported problem was tingling in hands and/or feet (43.3%). The median PHE score was 2. Additionally, 29.45% and 16.27% of the patients reported moderate and severe distress, respectively. The results of regression analysis showed that the PHE scale could predict social support, self-efficacy, quality of life and all of its dimensions (P<0.001). However, it is the strongest predictor of understanding and participating in care (P<0.001, r=0.485). Conclusion: Given that the model can predict factors effective in improving cancer and interventions based on this model have not been performed in Iran, it is recommended that health interventions based on this model should be designed and implemented.
Application of the Health Promotion Model to Predict Breakfast Consumption Among Adolescent Girls: A Structural Equation Modeling Approach
Authors: Imani-Nasab Mohammad Hasan , Ardalan Arash , Cheraghi Nasim , Asadi-Piri Zahra , Ebrahimzadeh Farzad , Bastami Fatemeh
Published: April 2022

Background: Healthy nutrition is necessary for normal growth and development. Although breakfast is considered the most important meal of the day, it is ignored by many adolescents. The purpose of this study was to apply the health promotion model (HPM) to predict breakfast consumption among adolescent girls using the structural equation modeling (SEM) approach. Methods: A descriptive-analytical study was performed on 450 Iranian female high school students in 2019. Sampling was performed through a multi-stage method. The data collection instrument was a two-part questionnaire. The first part was about demographic information and the behavior of breakfast consumption. The second part was a questionnaire based on the HPM. Data were analyzed by SPSS (version 21) and AMOS (version 21) using the Chi-square test and the regression model. Results: Based on SEM, the constructs of Pender’s HPM explained approximately 0.47 of the variation in the breakfast consumption behavior. The highest total effects on breakfasting behaviors belonged to behavioral perceptions (0.833), prior related behaviors (0.800), perceived self-efficacy (0.677), activity-related affects (0.659), perceived barriers (-0.598), and commitment to planning (0.361). Conclusion: HPM is a suitable theory for predicting commitment to the planning and behavior of breakfast consumption among Iranian adolescent girls. Accordingly, the impact of emotions and behavioral perceptions on a commitment to planning for breakfast consumption should be considered in designing nutritional interventions for female adolescents. Moreover, in planning educational interventions, pleasant experiences should be created to positively influence individual perceptions and effects related to the target behavior in order to enhance commitment to the breakfast consumption behavior.
Efficacy of Vernonia cinerea (L) Less for smoking cessation: An updated meta-analysis of randomized controlled trials
Authors: Phimarn Wiraphol , Sakhancord Rotjanawat , Saramunee Kritsanee , Sungthong Bunleu
Published: April 2022

Vernonia cinerea (VC) has been used for smoking cessation. A previous meta-analysis (MA) reported the efficacy of VC in smoking cessation. However, there have been updated randomized controlled trials (RCTs) on the efficacy of VC for smoking cessation, and the previous MA lacked pooled adverse events (AEs) related to VC. The objective of this study was to systematically review and perform an updated MA on the efficacy of VC for smoking cessation continuous abstinence rate (CAR), prevalence abstinence (PAR), and AE. The research articles were retrieved via electronic databases including PubMed, Science Direct, Web of Science, Thai-Journal Citation Index Center (TCI), and ThaiLis. Ten RCTs published prior to 2019 were included in this study. The number of participants in the studies ranged from 35 to 172, and the follow-up duration for the primary outcomes was 2-12 weeks. Our updated MA found that VC could significantly improve CAR2 (RR=1.54; 95% CI = 1.06, 2.23), CAR4 (RR=1.65; 95% CI = 1.25, 2.17), CAR 8 (RR=1.85; 95% CI = 1.25, 2.75), CAR12 (RR=2.56; 95% CI = 1.66, 3.95), and CAR16 (RR=2.21; 95% CI = 1.03, 4.73). Moreover, VC improved PAR2 (RR=1.47; 95% CI = 1.06, 2.04), PAR4 (RR=1.35; 95% CI = 1.02, 1.79), PAR8 (RR=1.60; 95% CI = 1.11, 2.31), and PAR12 (RR=1.70; 95% CI = 1.25, 2.30). There was no significant difference in the AE between the two groups. The study substantiates claims that VC products are effective in assisting with smoking cessation.
Potential pharmacokinetic and pharmacodynamic herb-drug interactions of Andrographis paniculata (Burm. f.) and andrographolide: A systematic review
Authors: Sundhani Elza , Lukitaningsih Endang , Nurrochmad Arief , Nugroho Agung Endro
Published: April 2022

Introduction: Herb–drug interactions (HDIs) in pharmacokinetics and pharmacodynamics can occur when natural compounds are used in combination with drugs. This study aimed to review the potential interaction of Andrographis paniculata (Burm. f.) extract (APE) and its primary compound andrographolide (AND) with several drugs exhibiting various pharmacological activities.Methods: In this systematic review, articles were collected from international databases such as PubMed, Science Direct, Springer Link, and Scopus until August 2021. The following keywords were used: Andrographis paniculata, andrographolide, HDI, drug interaction, pharmacokinetics, and pharmacology. This review was written in accordance with the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA), SYRCLE’s risk of bias (RoB) tool for animal intervention studies, and Cochrane RoB 2 tool to analyze the RoB for qualitative assessment.Results: Twelve articles were included in accordance with the inclusion and exclusion criteria of this study. Five studies explored the potential of HDIs for combining APE with drugs and AND with theophylline, etoricoxib, nabumetone, naproxen, and tolbutamide. Five studies focused on AND in combination with aminophylline and doxofylline, meloxicam, glyburide, glimepiride, metformin, and warfarin. Two studies tested the combination of APE with gliclazide and midazolam. The HDI mechanism involving the inhibition or induction of cytochrome P450 enzyme expression was dominant in influencing the drug’s pharmacokinetic profile. Pharmacological studies on the combination of several drugs, particularly anti-inflammatory and antidiabetic drugs, showed a synergistic activity.Conclusion: APE and AND have potential pharmacokinetic and pharmacodynamic HDIs with various drugs. This study can be used as a therapeutic consideration in clinical aspects related to the possibility of HDIs of A. paniculata (Burm. f.).
The role of aromatherapy with lavender in reducing the anxiety of patients with cardiovascular diseases: A systematic review of clinical trials
Authors: Amin Arash , Rahmani Gavanrudi Mahtab , Karami Kimia , Raziani Yosra , Baharvand Parastoo
Published: April 2022

Most studies have shown the positive effects of lavender inhalation in decreasing anxiety in patients with cardiovascular diseases. We aimed to systematically review the role of aromatherapy with lavender in these patients. By PRISMA standards, we explored the studies on the role of aromatherapy with lavender in reducing the anxiety of patients with cardiovascular diseases in English databases through the words and terms "aromatherapy", "lavender", "lavandula", "anxiety", "cardiovascular diseases". Out of 16 647 papers, 12 papers up to January 2022 encountered the inclusion criteria for involving in this systematic review. The majority of studies (7 studies, 70%) were used Spielberger Standard Questionnaire as a measurement scale for their studies. Lavender aromatherapy was mostly used for myocardial infarction (3 studies, 30%) and coronary artery bypass graft (CABG) surgery (3 studies, 30%) patients. We concluded that aromatherapy with lavender essential oil significantly ameliorated the anxiety signs in some cardiovascular diseases, e.g., CABG surgery, myocardial infarction, and cardiac ischemia; however, more studies are required in this field to obtain more specific evidence.
Assessment of gastroprotective activity of aqueous leaf extract of Ageratum conyzoides L.: Role of mucous cells, anti-apoptotic (Bcl-2) and tumor suppressor (p53) proteins
Authors: Omotoso Dayo Rotimi , Eze Gerald Ikechi
Published: April 2022

Introduction: Generally, factors that up-regulate gastric mucosal protective factors or down-regulate aggressive factors contribute to the maintenance of mucosal integrity. This study was done to assess the role of mucous cells, Bcl-2 and p53 proteins during the gastroprotective activity of aqueous extract of Ageratum conyzoides.Methods: The phytochemistry of A. conyzoides extract was analyzed using a gas chromatography-mass spectrometer. Animals were subdivided into five groups, including non-treated normal control group A, non-treated test control group B, and treated groups C-E (Pre-treated with 100, 300, and 500 mg/kg A. conyzoides, respectively for 28 days). After the treatment period, pyloric-ligation was used to induce mucosal injury. Gastric tissues were harvested, grossly examined, and processed for histological, histochemical, and immunohistochemical studies. Stained sections were examined and quantified using image-J software. The data were analyzed using IBM-SPSS (version 23), and comparisons were checked via t test and analysis of variance.Results: Mild mucosal erosion was observed in the treated groups, but intense erosion was prominent in the test control animals. There was an insignificant increase in mucous cells, a significant (P < 0.05) increase in Bcl-2 expression without a significant increase in p53 expression in gastric mucosa of pre-treated animals compared to normal control. Gastric mucosa of test control showed a significant (P < 0.05) decrease in mucous cell count and Bcl-2 expression with a significant concomitant increase in p53 expression.Conclusion: Increased mucous cell population and reciprocal expressions of Bcl-2 and p53 proteins in the gastric mucosa of animals highlighted the sub-cellular mechanisms of gastroprotective activity of A. conyzoides.
Potential antifungal impact of citral and linalool administered individually or combined with fluconazole against clinical isolates of Candida krusei
Authors: Houshmandzad Mehdi , Sharifzadeh Aghil , Khosravi Alireza , Shokri Hojjatollah
Published: April 2022

Introduction: Candida krusei is recognized as a major fungal pathogen in patients with immunodeficiency disorders. The present study aimed at investigating the anticandidal activities of citral and linalool combined with fluconazole (FLZ) against FLZ-resistant C. krusei strains. Methods: Antifungal activities were evaluated by the broth microdilution (MD) method to determine the minimum inhibitory and fungicidal concentrations (namely, MICs and MFCs) according to the Clinical and Laboratory Standards Institute (CLSI) M27-A3 document. The interactions were further evaluated using fractional inhibitory concentration indices (FICIs) for combinations of citral+FLZ and linalool+FLZ, calculated from checkerboard MD assays. Results: The mean ± standard deviation (SD) MIC values of citral, linalool, and FLZ against the C. krusei isolates were 70.23 ± 17, 150 ± 38.73, and 74.66 ± 36.95 μg/mL, respectively. Some fungicidal activities were also observed for citral (2.5) and linalool (1.53) against the C. krusei isolates. The FICI values of citral+FLZ and linalool+FLZ for the C. krusei isolates ranged from 0.4 to 1.00 and 0.19 to 0.63, respectively. The additive and synergistic interactions of linalool + FLZ were further observed in 12 (57.1%) and 9 (42.9%) C. krusei isolates. However, there was an additive interaction for citral + FLZ in 17 (80.9%) isolates. They also showed a synergistic interaction in only four (19.1%) isolates. Moreover, linalool and citral plus FLZ did not have any antagonistic effect on any isolates. Conclusion: The study findings support the possible capabilities of citral and linalool, as anticandidal agents, and FLZ might be supplemented with citral and/or linalool for treating FLZ-resistant C. krusei infections.
Biomaterialidad como alternativa al esteticismo productivista
Authors: Mené Rodrigo Ezequiel
Published: April 2022

La biomaterialidad, entendida como un material compuesto a base de un organismo vivo, siendo o habiendo sido parte de este o producto del mismo organismo, está cada vez más presente en el campo del diseño. Sin embargo, se suele concebir los biomateriales como un alternativa reduccionista y simplificada, enmarcándola dentro de un reemplazo a las producciones a base de plásticos, sin cuestionar la lógica de consumo y los medios productivos. Esta irrupción amerita considerar la biomaterialidad de manera ontológica, como una alternativa disidente a las formas de producción actuales que trae consigo nuevos principios estético-formales. Lo sustentable del uso de biomateriales no deriva solamente del cambio de materialidad empleada, sino de la forma de cambiar los medios de producción y consumos globalizados, y genera un nuevo razonamiento a la hora de diseñar objetos, alterando las pautas universales que rodean al diseño industrial. Es por eso que la biomaterialidad no debe enmarcarse dentro de la producción actual que propone el mercado global, ya que, mediante esa forma de pensamiento, entraría como una variante expuesta a ser capitalizada dentro de la sociedad de consumo actual.
Pengaruh Kinerja Keuangan dan Non Keuangan terhadap Pengungkapan Corporate Social Responsibility (CSR)
Authors: Iqbal Muhammad , Nichen Nichen
Published: April 2022

Studi empiris ini bertujuan untuk menguji pengaruh kinerja keuangan dan non keuangan terhadap pengungkapan Corporate Social Responsibility (CSR). Adapun variabel kinerja keuangan yang diteliti adalah kepemilikan manajemen (MAN), leverage (DER), profitabilitas (ROA), dan variabel kinerja non keuangan adalah tipe industri (IND). Populasi dalam penelitian adalah perusahaan manufaktur yang terdaftar di Bursa Efek Indonesia (BEI) tahun 2018 dengan metoda purposive sampling sehingga diperoleh sampel sebanyak 143 perusahaan. Data dianalisis dengan analisis regresi berganda dengan tiga uji asumsi klasik menggunakan SPSS 21,0 for windows. Hasil penelitian menunjukkan bahwa variabel profitabilitas (ROA) dan tipe industri (IND) berpengaruh positif terhadap pengungkapan CSR, sedangkan variabel kepemilikan manajemen (MAN) dan tingkat leverage (DER) tidak memiliki pengaruh terhadap pengungkapan CSR. Dengan demikian, disimpulkan bahwa perusahaan dengan tipe industri high atau skala besar dan tingkat profitabilitas yang tinggi, cenderung akan melakukan pengungkapan informasi sosial lebih banyak sebagai bentuk tanggung jawab perusahaan kepada masyarakat serta menjaga eksistensinya.