bluuebunny/crossref_metadata_2025 huggingface dataset:
Electrochemical Detection of 4-Nitrophenol by Using Graphene Based Nanocomposite Modified Glassy Carbon Electrodes: A Mini Review
Authors: E. Prabakaran  , Kriveshini Pillay
Published: March 2021

This article describes the fabrication of electrochemical devices for the detection of a key environmental pollutant, 4-Nitrophenol (4-NPh). 4-NPh is a requirement for the synthesis of organophosphate pesticides. These pesticides are mostly used in the agricultural sector to obtain a high yield of agricultural products. The use of 4-NPh in the agricultural field results in poisonous levels of this compound in the soil and water. Different techniques have been used for its transformation by biological and chemical degradation. However, these strategies not only created highly toxic pollutant but also need fast operation and time consuming processes. In this background, we have reported a broad and efficient review of the electrochemical reduction of 4-NPh as a feasible alternate method. In this review paper, graphene oxide (GO), reduced graphene oxide (rGO), N-doped graphene oxide, functionalized graphene oxide, metallic nanoparticles coated graphene oxide, metal oxides covered on rGO, polymer functionalized graphene oxide and hybrids materials functionalized with graphene oxide (hydroxyl apatite and β-cyclodextrin) which have been fabricated on a glassy carbon electrode (GCE) to enhance the electrocatalytic reduction and increase the sensor activity of 4-NPh are discussed. We have also described the effects of a few interfering phenolic pollutants such as aminophenol, hydroquinone, o-nitrophenol (o-NPh), trinitrotoluene, trinitrophenol, 2, 4-dinitrophenol (4-DNPh) and nitrobenzene. In the paper, easy and more effective electrochemical methods for the detection of 4-NPh with graphene- based nanocomposites modified on GCE for 4-NPh detection are summarized and discussed.
Inovasi Mesin Duta Baru sebagai Pengaduk dan Pencetak Kue Kembang Waru di UMKM Kotagede Yogyakarta
Authors: Ayunin Nia , Fitri Firdaus , Raflyani Febbyola
Published: March 2021

Kembang Waru is one of the traditional cakes popular in Kotagede, Yogyakarta. The cake has a shape like a Waru leaf. One of the micro, small, medium enterprises (MSMEs/UMKM) that produces Kembang Waru cake is the one owned by Mr. Basiran Hargito. The process of making Kembang Waru cake starts with stirring the dough, pouring the dough into a mold, and baking process in an oven that uses charcoal. Based on observations, the problems occurred were the ineffectiveness and inefficiency of the kneading and pouring process. It causes workers to feel tired easily, which can reduce productivity. Based on these problems, the solution is making Duta Baru machines with an ergonomics-anthropometric approach. The purpose of making machines is to assist workers in the process of mixing and storing the dough in the mold. The approach aims to determine the dimensions of the machine according to the body size of the workers in the MSME. Besides, the aim of designing the Duta Baru machine supports the global agenda, namely Sustainable Development Goals, which can make the industry better. The machine was able to increase the productivity rate by 25%.

Kue kembang waru merupakan makanan khas yang berasal dari Kotagede, Yogyakarta Kue ini dinamakan kembang waru sebab berbentuk seperti bunga waru. Salah satu UMKM yang memproduksi kue Kembang Waru yaitu UMKM milik Bapak Basiran Hargito. Proses pembuatan kue kembang waru mulai dari pengadukan adonan, penuangan adonan dalam cetakan, hingga proses pemanggangan dengan oven yang menggunakan arang. Berdasarkan pengamatan, ditemukan bahwa masalah yang terjadi yaitu ketidakefektifan dan ketidakefisienan proses pengadukan dan penuangan adonan. Hal ini menyebabkan pekerja mengalami kelelahan sehingga dapat menurunkan produktivitas. Berdasarkan permasalahan tersebut, maka dilakukan perancangan inovasi mesin Duta Baru dengan pendekatan ergonomi-antropometri. Pembuatan mesin bertujuan untuk membantu pekerja dalam proses pengadukan dan penuangan adonan dalam cetakan. Pendekatan ergonomi-antropometri bertujuan untuk mengetahui dimensi mesin sesuai dengan ukuran tubuh pekerja yang ada di UMKM tersebut. Selain itu, tujuan perancangan mesin Duta Baru mendukung agenda dunia yaitu Sustainable Development Goals, yang dapat membuat perindustrian menjadi lebih baik.Pembuatan mesin mampu meningkatkan tingkat produktivitas sebesar 25%.
CEO demographic characteristics and firm performance: an empirical study in the scientific research and technology development industry
Authors: Jardine Melissa , Duong Thi Thanh Thuy
Published: March 2021

The purpose of this study is to analyze the impact of the chief executive officer (CEO) demographic characteristics including CEO age, CEO gender, and CEO education on the performance of firms in the scientific research and technology development (SRTD) industry context. The crosssectional data employed are collected from the General Statistics Office of Vietnam’s survey on corporations in 2017 with three samples, which include SRTD firms, certified SRTDs as CSRTD firms, and the SRTD industry as a whole. The least-squares analysis, robust regressions, statistical parametric and non-parametric tests are conducted to analyze the data. Firstly, it is found that the association between CEO age and firm performance is different between SRTD firms and CSRTD firms and statistically non-significant to the SRTD industry as a whole. Secondly, female CEOs of SRTD firms operate their businesses better than their male counterparts while the opposite is witnessed in CSRTD firms. For the whole SRTD industry, male CEOs outperform. Thirdly, for SRTD firms, the higher education of CEOs does not ensure higher performance. Nonetheless, CEOs with master’s degrees do have better performance than CEOs with bachelor’s degrees. These results are consistent in all estimation models being employed. The study is the first to examine factors affecting the performance of firms in the SRTD industry.
The Abundance of Phosphorus in the HgMn Star 14 Sge
Authors: Monier Richard , Khalack Viktor , Ivanyuk Oleksiy
Published: March 2021

The abundances of several elements in the atmosphere of the HgMn star 14 Sge (HR 7664) are derived from the analysis of high-resolution spectra obtained recently with the spectropolarimeter NeoNarval. A large phosphorus overabundance, about 60 times the solar abundance, is found. This study is the beginning of a systematic survey of all northern HgMn stars aiming at deriving their abundances in a consistent manner.
Rationalisation économique des politiques environnementales
Authors: Barral Stéphanie
Published: March 2021

Depuis les années 1970, les politiques environnementales sont le lieu d’un « tournant libéral » sous l’action conjuguée des sphères de la science, du droit et du marché, qui se traduit par une recrudescence d’instruments économiques produits en réponse à des problèmes environnementaux. Cet article interroge la pertinence d’une telle orientation en appliquant la sociologie wébérienne des rationalisations aux banques d’espèces menacées d’extinction, un instrument économique de protection de la nature développé aux États-Unis. Premièrement, il montre comment les domaines d’application du droit de l’environnement participent à une définition restrictive des objets du droit, c’est-à-dire des catégories à protéger, sous-tendue par une hiérarchie de valeurs attachées à la nature. Deuxièmement, il analyse les circuits de financement et les facteurs de rentabilité qui organisent la participation d’investisseurs privés dans la mise en œuvre de la politique, et met en évidence le fait qu’un nombre restreint d’espèces menacées sont attractives et donc effectivement protégées. En invitant à se pencher sur la tension entre les principes abstraits du droit et leur rationalisation matérielle dans le développement d’échanges marchands, la sociologie wébérienne donne ainsi à voir les effets réducteurs de la protection de la nature par le marché.
Après-propos : flexibilité et perméabilité de l’espace personnel
Authors: Mellier Daniel
Published: March 2021

L’espace personnel contient l’espace interpersonnel et l’espace de préhension. L’étude de leur construction et de leur développement est fondée sur des paradigmes de mesure consensuels, autant dans les observations issues de la clinique développementale, que dans les recherches expérimentales. Le périmètre de ces espaces est flexible. La tolérance à l’intrusion dans ces limites en estime la perméabilité. L’espace de préhension où le commerce avec les objets est direct, et celui de l’espace interpersonnel modulé pour interagir avec autrui, font l’objet d’études comparatives, notamment dans les situations créées par le spectre de l’autisme chez l’enfant et l’adulte. Ce sont aussi des paramètres culturels, de sexe, de corpulence, de type d’attachement qui sont évalués pour définir leur rôle dans les comportements spatiaux proximaux. Le recours aux techniques numériques et aux environnements virtuels ouvre des perspectives déjà assurées pour les recherches fondamentales ou appliquées.
Esqueletos inhumados en cementerios excavados en roca: el caso de Tejuela/Villanueva de Soportilla (Burgos)
Authors: Martín-Alonso José F. , Maroto Benavides Rosa M. , Jiménez-Brobeil Sylvia A.
Published: March 2021

Se hace una aportación innovadora al estudio de los cementerios en roca desde una perspectiva antropológica. Se analizan 109 tumbas, que conservan restos óseos, del cementerio de Tejuela/Villanueva de Soportilla que fue excavado primeramente por Alberto del Castillo y después por Aratikos Arqueólogos. No hay una relación clara entre tipos de tumbas y sexo, aunque las tumbas de bañera son más comunes entre mujeres. No hay relación con la edad a excepción de los niños muy pequeños, que están enterrados mayoritariamente en tumbas del mismo tipo. Aunque la longitud de las tumbas está correlacionada con la estatura de los individuos, no puede establecerse con precisión la edad o sexo del sujeto que se inhumó en una sepultura que se encuentre vacía. Se incluyen dataciones absolutas obtenidas a partir de los esqueletos que aportan fechas entre el último tercio del siglo VIII y comienzos del XI.
Attention and Working Memory
Authors: Zavitsanou Aggeliki Maria , Drigas Athanasios
Published: March 2021

The ability of attention and working memory are two very important cognitive functions. There is broad agreement that working memory is closely related to attention. There has been a lot of research in the past that tries to explain the relationship between the two. So far it seems that their relationship is closely related as well as very significant, while one affects the other. This article outlines several theoretical options for conceptualizing this link and evaluates the views of the authors coming to the same conclusion. Essentially, the purpose of the literature research is to show the interdependence of the two fundamental cognitive functions through mechanisms or daily processes - which require working memory and attention – as well as through neurodevelopmental disorders or diseases. In some of the articles listed, the working memory and attention have been divided into components that help to see the relationship between them too.
Towards an Architecture-based Ensemble Methods for Online Social Network Sensitive Data Privacy Protection
Authors: Idepefo Felix Olutokunbo , Akhigbe Bernard Ijesunor , Aderibigbe Ojo Stephen , Afolabi Babajide Samuel
Published: March 2021

Abstract - In 2014, the world woke up to a giant data breach that leveraged users’ personal information that was taken from one of the world’s biggest social network platform. Based on the literature, this was possible because of the Centralised Architectural-based Approach to protecting the privacy of users’ online data. Although the literature is inundated with decentralized approaches, there is none to the best of our knowledge that uses an ensemble of methods and draws on a consensus mechanism to address the challenges caused by the Centralised Architectural-based Approach. This paper presents a decentralized approach that adopts and adapts an ensemble of methods. These methods include cryptographic, hashing, and the plenum byzantine fault tolerance algorithms that present a consensus platform, protocol, and mechanism to use the technology of blockchain in a novel manner as a significant contribution. This paper adopts the descriptive approach in its presentation as the usable implementation of the presented proposal is near completion with issues of computational overhead addressed based on preliminary results that show promise of being able to support agreement up to ≈ 75% in terms of making changes by participants in the chain.
La fracture de l’exil dans Désorientale, de Négar Djavadi
Authors: Chamlou Laurence
Published: March 2021

Peut-on parler d’une langue de l’exil ? À partir d’une blessure initiale qu’est l’exil, émerge une langue, placée dans un entre-deux, construite dans les entrelacs des souvenirs mais surtout, à la frontière entre deux cultures. Depuis la révolution iranienne de 1979, des écrivains ont fait le choix de s’exprimer dans une autre langue que le persan, jonglant sur un terrain hybride. Négar Djavardi fait partie de cette famille d’écrivains iraniens exilés et s’est fait connaître à travers un premier roman, Désorientale, paru en 2016. Dans une narration hachée et une langue qui se place dans les interstices, mais surtout dans un foisonnement linguistique, elle crée un texte basé sur l’étrangeté, la digression et l’oralité. L’exil, dont la violence est comparée à une désintégration, donne naissance à une langue dont le rythme alterne entre une cassure identitaire et une narration en suspens. Sa langue devient le miroir des fractures de l’exil dans une explosion d’images et de sensations.
Sobre jácaras villanciqueras y narcocorridos: Del Dios rufián y barroco al Narco endiosado neobarroco
Authors: Granados Octavio Páez
Published: March 2021

Existe una cierta fascinación del gusto iberoamericano por algunos tipos de marginalidad, por ejemplo, la masculinidad delincuente. Como expresiones de este gusto, tenemos dos formas poéticas de raíz iberoamericana, expresamente creadas para ser puestas en música: las jácaras villanciqueras del barroco y el narcocorrido mexicano de nuestro tiempo. Ambas formas poético-musicales se caracterizan, entre otras cosas, por enaltecer, celebrar y divinizar la masculinidad delincuente: la jácara villanciquera convierte a Dios (encarnado en Jesucristo) en rufián y valentón, y el narcocorrido diviniza al narcotraficante y lo erige como una figura mesiánica. De una forma pionera y desde una perspectiva comparatista, este artículo propone activar una lectura alternativa, evidenciando la vinculación y la analogía entre estos dos fenómenos socioculturales, en donde el delincuente es proyectado como modelo de salvación en contextos de marginalidad y pobreza. Así, jácaras villanciqueras y narcocorridos se proyectan como poéticas de tipo mesiánico y devocional, y no sólo como expresiones de lo popular a guisa de apologías del crimen.
Parlons travail : déplacement et resémantisation de l’écriture, dans la lignée de Primo Levi et Aharon Appelfeld
Authors: Furci Guido
Published: March 2021

Cette contribution vise à thématiser et remettre en contexte les échanges que Philip Roth a entretenus avec Primo Levi et Aharon Appelfeld pendant plusieurs années. Cette sorte de « dialogue à distance » (enrichi dans un deuxième temps par les correspondances que chacun des auteurs a eues avec les autres de manière plus individuelle), est emblématisé en particulier par la place que Levi et Appelfeld occupent dans Shop Talk (Parlons travail), paru en 2001. Articulées en trois mouvements, les réflexions proposées cherchent, d’abord, à revenir sur le brouillage des frontières symboliques opéré par Philip Roth dans cet ouvrage (qui mêle et déconstruit plusieurs formes : recueil d’entretiens, essai, récit autobiographique, journal intime) ; ensuite, à questionner les paradigmes testimoniaux que Levi et Appelfeld incarnent, et que Roth cherche à problématiser dans le cadre de son travail ; enfin, à aborder la notion de « déplacement » à la lumière de ce que l’écriture (documentaire) peut signifier dans une perspective à la fois transnationale et intergénérationnelle.
Le complexe de la complexité : déplacement multidimensionnel dans l’œuvre de Dai Sijie
Authors: Codeluppi Martina
Published: March 2021

Il n’est plus possible de tracer les contours de la littérature chinoise en tant qu’entité « située » dans un espace bien défini. La littérature elle-même est désormais déterritorialisée. Une manifestation évidente de ce déplacement au sens large est la littérature de la diaspora, en particulier dans le cas où elle est rédigée dans une langue étrangère. Dans le contexte francophone, Dai Sijie est l’un des auteurs les plus connus parmi les écrivains assimilables à la diaspora chinoise et, parmi d’autres, son roman Le Complexe de Di (2003) constitue un excellent exemple de la manière dont la question du déplacement de l’individu peut être abordée depuis plusieurs perspectives. Cet article vise à montrer les différents niveaux auxquels l’auteur exprime sa transidentité et son hybridation linguistique et culturelle. Il explore trois interprétations d’un mouvement qui est à la fois linguistique, culturel et spatial, pour montrer le lien entre la représentation de l’espace et la complexité identitaire dérivant d’une « sinité » mondialisée.
Écris-moi un haïku ! Vulgarisation d’une forme fixe dans la littérature jeunesse
Authors: Bossi Magali
Published: March 2021

Pourquoi, dans un XXIe siècle marqué par les nouvelles technologies, conseiller aux enfants d’écrire des haïkus ? Comment vulgariser à leur égard cette forme d’origine japonaise ? Quels critères retenir, quelles règles adopter ? Cet article part d’un constat : le haïku est aujourd’hui une forme largement répandue à l’échelle mondiale – y compris dans la littérature jeunesse. Il séduit par son apparente simplicité : 5-7-5 syllabes, un « mot de saison » (kigo) et une coupe (kireji), il n’en faut pas plus. Sa vulgarisation actuelle, loin d’être le résultat d’une mode contemporaine, trouve en partie son origine dans les écrits des premiers précurseurs de la forme en France : Paul-Louis Couchoud, René Maublanc ou encore Jean Paulhan, fascinés par le haïku au début du XXe siècle. Cette étude propose de mettre en regard deux corpus éloignés (les ouvrages jeunesse et les écrits des précurseurs français), afin de questionner autrement un poème devenu synonyme de brièveté.
Hierarchical Load Balancing Model by Optimal Resource Utilization
Authors: Patni Jagdish Chandra
Published: March 2021

Powerful computational capabilities and resource availability at a low cost is the utmost demand for high performance computing. The resources for computing can viewed as the edges of an interconnected grid. It can attain the capabilities of grid computing by balancing the load at various levels. Since the nature of resources are heterogeneous and distributed geographically, the grid computing paradigm in its original form cannot be used to meet the requirements, so it can use the capabilities of the cloud and other technologies to achieve the goal. Resource heterogeneity makes grid computing more dynamic and challenging. Therefore, in this article the problem of scalability, heterogeneity and adaptability of grid computing is discussed with a perspective of providing high computing, load balancing and availability of resources.
Concept of Cloud Computing in ESB
Authors: Bhushan Mayank , Yadav Ankit
Published: March 2021

Cloud computing is evolving as a very important IT service platform with Its advantages of cost effectiveness and international access. To become a wide adopted IT infrastructure and service platform, cloud computing should be integrated with different systems in organizations. In academia, there's terribly restricted study of cloud computing integration. In follow, the industry lacks a comprehensive systems integration design or tools that may integrate any system universally. Built upon Enterprise Service Bus (ESB) as an integration backbone, this text proposes a universal integration design. With this design, any system or service (e.g., ERP and cloud computing) will simply be integrated through the ESB without needing software system renovation. so as to completely support the enterprise-level business operations during a heterogeneous computing setting, this design conjointly introduces a rule-based business method management (BPM) engine to contour business method management across disparate systems.
A Heuristic Approach for Service Allocation in Cloud Computing
Authors: Sharieh Ahmad , Albdour Layla
Published: March 2021

Cloud computing systems are considered complex systems, because of the various classes of services offered for users and the big challenges for providers to meet the increasing demands. Thus, service allocation is a critical issue in cloud computing. Fuzzy modeling is one choice to deal with such complexity. In this paper, the authors introduce a new heuristic service allocation model for cloud computing service allocation. Fuzzy sets are used to determine a candidate cloud for providing a service and crisp sets are used to serve requests from a cloud. Supply and demand are used as the fuzzy input to provide the desired heuristic allocation model for the candidate cloud, and a set of parameters are used to determine a cloud user needs.
“Saksham Model” Performance Improvisation Using Node Capability Evaluation in Apache Hadoop
Authors: Shah Ankit , Padole Mamta C.
Published: March 2021

Big Data processing and analysis requires tremendous processing capability. Distributed computing brings many commodity systems under the common platform to answer the need for Big Data processing and analysis. Apache Hadoop is the most suitable set of tools for Big Data storage, processing, and analysis. But Hadoop found to be inefficient when it comes to heterogeneous set computers which have different processing capabilities. In this research, we propose the Saksham model which optimizes the processing time by efficient use of node processing capability and file management. The proposed model shows the performance improvement for Big Data processing. To achieve better performance, Saksham model uses two vital aspects of heterogeneous distributed computing: Effective block rearrangement policy and use of node processing capability. The results demonstrate that the proposed model successfully achieves better job execution time and improves data locality.
A Synchronized Test Control Execution Model of Distributed Systems
Authors: Azzouzi Salma , Hsaini Sara , Charaf My El Hassan
Published: March 2021

Conformance testing may be seen as mean to execute an IUT (implementation under test) by carrying out test cases in order to observe whether the behavior of the IUT is conforming to its specifications. However, the development of distributed testing frameworks is more complex and the implementation of the parallel testing components (PTCs) should take into consideration the mechanisms and functions required to support interaction during PTC communication. In this article, the authors present another way to control the test execution of PTCs by introducing synchronization messages into the local test sequences. Then, they suggest an agent-based simulation to implement synchronized local test sequences and resolve the problem of control and synchronization.
On the Conceptualization of Elastic Service Evaluation in Cloud Computing
Authors: Feng Danqing , Wu Zhibo , Zhang Zhan , Fu Jinwei
Published: March 2021

Cloud computing is becoming an urgent technology in the enterprises. One key characteristic in the cloud computing is the elasticity. Then, it is urgent for the users how to rank the renting services reasonably. Considering the main features of the elasticity, this article gives classification on resource optimization. However, one of the major challenges is how to optimize resource allocation in an elastic manner. Due to the special pay-as-you-go manner, resource optimizing strategies are associated with the goal of minimizing the costs on the premise of service-level-agreement (SLA). Another challenge of resource optimizing strategies is to how to dynamically respond to the application demands. In this paper, the authors sketch the elastic definition more clearly. Secondly, different dimensions are described on elastic resource allocations. Thirdly, it is important to seek out the proper resource allocation strategy. Finally, the challenges and conclusions are discussed in this article.
Attitudes Towards Cloud Computing Adoption in Emerging Economies
Authors: Alsharo Mohammad
Published: March 2021

Cloud computing is perceived to be the trend of the future as software and hardware turn into the new utility. This study aims to investigate the attitudes of IT professionals and decision makers in emerging economies towards cloud computing. The study also investigates the opportunities and concerns which IT professionals and decision makers have regarding adopting cloud computing in their organizations. This study was carried out in Jordan and the researchers used semi-structured interviews as a research methodology. The theoretical foundation for this research is found in the Diffusion of Innovation Theory. The findings suggest that IT professionals and decision makers in Jordan have positive attitudes towards cloud computing and the adoption rate is increasing at a rapid pace. Relative advantage in terms of cost reduction is a major adoption driver, while compatibility with organizations policies and culture is a major concern. The findings also suggest that government and small to medium-sized enterprises are the major adopters and large enterprises are lagging behind.
Adaptive Threshold Based Scheduler for Batch of Independent Jobs for Cloud Computing System
Authors: ALAM TAJ , DUBEY PARITOSH , KUMAR ANKIT
Published: March 2021

Distributed systems are efficient means of realizing high-performance computing (HPC). They are used in meeting the demand of executing large-scale high-performance computational jobs. Scheduling the tasks on such computational resources is one of the prime concerns in the heterogeneous distributed systems. Scheduling jobs on distributed systems are NP-complete in nature. Scheduling requires either heuristic or metaheuristic approach for sub-optimal but acceptable solutions. An adaptive threshold-based scheduler is one such heuristic approach. This work proposes adaptive threshold-based scheduler for batch of independent jobs (ATSBIJ) with the objective of optimizing the makespan of the jobs submitted for execution on cloud computing systems. ATSBIJ exploits the features of interval estimation for calculating the threshold values for generation of efficient schedule of the batch. Simulation studies on CloudSim ensures that the ATSBIJ approach works effectively for real life scenario.
The Cloud in Education
Authors: Donert Karl
Published: March 2021

This chapter is based on a review of literature written as part of the project “School on the Cloud” (SoC) launched by 57 project partners in March 2014 in Athens, Greece. The SoC project sought to provide a better understanding of potential impact that Cloud Computing can have on education in Europe. It presents leadership and management issues related to the adoption and implementation of the Cloud in education. It has been developed through a mixed-research approach involving desk-based review, analysis and policy guidance for educational stakeholders. E-leadership issues and support measures are identified for implementing the Cloud in education organisations.
The Role of Trust in the Acceptance of Government Cloud
Authors: Alrashed Maha A. , Alotaibi Mutlaq B
Published: March 2021

This study proposes and empirically examines a revised and extended Unified Theory of Acceptance and Use of Technology (UTAUT) model, while acknowledging the role of trust on government cloud (G-Cloud) acceptance. The study utilized a quantitative research approach to examine the research model with data collected from a survey administered to IT professionals at government agencies in Saudi Arabia. The model was tested using the partial least squares structural equation modeling (PLS-SEM). Results show that trust is a major predictor of behavioral intentions to use G-Cloud that reduces uncertainty associated with the cloud and mitigates risk perceptions on the one hand, and significantly increases the perceptions of usefulness on the other hand. Furthermore, results indicate that performance expectancy, social influence, and facilitating conditions are all significant determinants of G-Cloud acceptance. Based on the findings, the study highlights several implications for practice and suggests opportunities for future research in the field of government cloud.
Distributed Based Serial Regression Multiple Imputation for High Dimensional Multivariate Data in Multicore Environment of Cloud
Authors: K Lavanya , Reddy L.S.S. , Reddy B. Eswara
Published: March 2021

Multiple imputations (MI) are predominantly applied in such processes that are involved in the transaction of huge chunks of missing data. Multivariate data that follow traditional statistical models undergoes great suffering for the inadequate availability of pertinent data. The field of distributed computing research faces the biggest hurdle in the form of insufficient high dimensional multivariate data. It mainly deals with the analysis of parallel input problems found in the cloud computing network in general and evaluation of high-performance computing in particular. In fact, it is a tough task to utilize parallel multiple input methods for accomplishing remarkable performance as well as allowing huge datasets achieves scale. In this regard, it is essential that a credible data system is developed and a decomposition strategy is used to partition workload in the entire process for minimum data dependence. Subsequently, a moderate synchronization and/or meager communication liability is followed for placing parallel impute methods for achieving scale as well as more processes. The present article proposes many novel applications for better efficiency. As the first step, this article suggests distributed-oriented serial regression multiple imputation for enhancing the efficiency of imputation task in high dimensional multivariate normal data. As the next step, the processes done in three diverse with parallel back ends viz. Multiple imputation that used the socket method to serve serial regression and the Fork Method to distribute work over workers, and also same work experiments in dynamic structure with a load balance mechanism. In the end, the set of distributed MI methods are used to experimentally analyze amplitude of imputation scores spanning across three probable scenarios in the range of 1:500. Further, the study makes an important observation that due to the efficiency of numerous imputation methods, the data is arranged proportionately in a missing range of 10% to 50%, low to high, while dealing with data between 1000 and 100,000 samples. The experiments are done in a cloud environment and demonstrate that it is possible to generate a decent speed by lessening the repetitive communication between processors.
Use of low volume, high effort resistance training to manage blood pressure in hypertensive patients inside a public hospital: a proof of concept study
Authors: Seguro Camila Simõe , Rebelo Ana Cristina Silva , Silva Anderson Garcia , Santos Matheus Malaquias Alves dos , Cardoso John Sebastião , Apolinário Valéria , Jardim Paulo Cesar Veiga , Gentil Paulo
Published: March 2021

Physical exercise has been shown to have an important role in the prevention and treatment of arterial hypertension. However, the general exercise recommendations are time consuming, which might be detrimental to exercise adoption. Based on this, minimal doses of exercise have been suggested as an alternative approach and this report investigates the feasibility and effects of low volume and high effort resistance training for hypertensive patients in a hospital setting. This is a pilot non-randomized prospective study where 15 sedentary hypertensive patients (11 women and 4 men) performed 24 resistance training sessions over 12 weeks at a public hospital. The resistance training sessions consisted of two sets of four exercises, with a rest interval of two minutes between sets. Systolic blood pressure (SBP) and diastolic blood pressure (DBP) were measured 10 minutes before and 10 minutes after each training. No injuries or intercurrence were reported during the study. SBP decreased significantly when compared the first and last sessions, when the measures were performed at rest (152 ± 16 mmHg vs. 122 ± 9 mmHg vs, p<0.05), and after (137 ± 13 mmHg vs. 115 ± 5 mmHg, p<0.05) the resistance training session. Similarly, DBP also decreased significantly when the values from the last session were compared with the first session, when measured at rest (83 ± 14 mmHg vs 73 ± 9 mmHg, p<0.05). Low volume and high effort resistance training seems to be a feasible non-pharmacological strategy to help controlling blood pressure in hypertensive patients within a hospital.
Cone-beam computed tomography assessment of root canal transportation and evaluation of remaining dentin thickness using XP EndoShaper and EndoStar E5
Authors: Kamat Nikita Arun , Vallabhaneni Saritha , Saraf Prahlad , Kamatagi Laxmikant , Totad Shrishail
Published: March 2021

Introduction:

The aim of this study was to compare canal transportation and remaining dentin thickness (RDT) of multiple-file system EndoStar E5 and single-file system XP EndoShaper (XPS) using cone-beam computed tomography (CBCT).

Materials and method:

A total of 50 mesiobuccal canals of the maxillary first molars with curvatures of 15°°–30°° were chosen and randomly divided into two experimental groups (n = 25). Canals were shaped with XPS in Group 1 and with EndoStar E5 in Group 2. According to the manufacturer's instructions, canal preparation was made. Canals were scanned before and after instrumentation using CBCT scanner to evaluate the root canal transportation at 3, 5, and 7 mm from the apex. Data were statistically analyzed, and significance level was set at P < 0.05.

Results:

Intergroup comparison mesiodistally showed that there was no significant canal transporation among both groups. Intergroup comparison buccolingually showed that there was statistically significant canal transporation at five millimeters when instrumented with XPS than EndoStar E5. With respect to RDT, intergroup comparison showed that mesially, distally, lingually, and bucally, there was no significant difference in the RDT.

Conclusion:

The present study indicates safety in the preparation of root canals with XPS as well as EndoStar E5. Both the files maintained original canal curvature while preserving RDT.
The Distribution, Uses, and Characteristic Components of Gentianaceae Plants in China
Authors: Cheng Han , Ge Yue-Bin , Li Jun , Zhang Yan , Huang Xian-Ju , Chen Guo-Xun
Published: March 2021

Extracts of Gentianaceae herbs have been widely used as food additives, teas, or medicinal remedies for various human diseases and disorders. Iridoids, secoiridoids, and analogs glycosides, mainly include gentiopicroside, sweroside, swertiamarin, and loganic acid, are the characteristic compounds found in the Gentianaceae plants. The uses of the medicinal herbs containing these secoiridoids have been described in Chinese Materia Medica. Herbal extracts containing iridoids, secoiridoids, and analogs could exert protective effects in multiple human tissues and cells. Some of these medicinal herbs have been studied using modern pharmacological means. The results indicate that they have analgesic, liver protective, anti-inflammatory, antiallergic, anti-pathogeny, and anti-bacterial functions. This review was aimed to summarize the use of Gentianaceae herbs for disease treatments and pharmacokinetic characteristics of the active compounds. In so doing, we hope to demonstrate that Gentianaceae herbs and bioactive compounds in them may have abilities to affect inflammation, hepatic metabolism and cell signaling. In addition, we would like to bring this to the attention of the field about the use and study of compounds derived from Gentianaceae herbs.
Determination of the Bioaccessibility of Cadmium in Golden Thread by Physiologically Based Extraction Test Digestion Using the in vitro/Caco2 Cell Model and Subsequent Risk Assessment
Authors: Zuo Tian-Tian , Luo Fei-Ya , Jin Hong-Yu , Xing Shu-Xia , Li Bo , Yu Kun-Zi , Kang Shuai , Sun Lei , Ma Shuang-Cheng
Published: March 2021

Background:

The ingestion of golden thread contaminated with heavy metals through the food chain leads to detrimental effects to human health. During digestion, not all of the heavy metals could be released to the gastrointestinal tract and readily to be absorbed by human body. Thus, bioaccessibility is an important issue in health risk assessments.

Aims and Objectives:

The aims and objectives of this study were to investigate the bioaccessibility of Cd in golden thread and assess the associated health risks based on the exposure to bioaccessible Cd.

Materials and Methods:

Inductively coupled plasma mass spectrometry (ICP-MS) has been applied to determine the Cd content in golden thread. Physiologically based extraction test (PBET) digestion was performed in the in vitro/Caco2 cell model to investigate the bioaccessibility of Cd in golden thread. Furthermore, the target hazard quotient (THQ) was used to assess the risks of the total and the bioaccessible content of Cd in golden thread.

Results:

The results revealed that the total Cd content in six batches of golden thread ranged from 3.203 to 5.723 mg/kg. After uptake by Caco2 cells, the bioaccessibility of Cd ranged from 42.36% to 59.73 %. The results of the risk assessment indicated that prior to uptake by Caco2 cells, the THQ values of Cd for all batches of golden thread were greater than 1. However, after uptake by Caco2 cells, the THQ values of Cd in all samples were less than 1, thus suggesting that the risks were at a safe level.

Conclusion:

This study was the first to perform health risk assessment with bioaccessible heavy metals present in traditional Chinese medicine by PBET digestion using an in vitro/Caco2 cell model, thus enabling us to obtain more accurate and objective results while allowing us to avoid unnecessary government intervention and to establish more reasonable limit standards for heavy metals.
Recent Advances of Traditional Chinese Medicine in the Regulation of Myocardial Mitochondrial Function
Authors: Wan Shi-Yao , Hu Jin-Gui , Zhang Yu , Yu Bo-Yang , Kou Jun-Ping , Li Fang
Published: March 2021

Cardiovascular disease is a crucial disease threatening human health, and its mortality rate ranks first among Chinese residents. Myocardial mitochondrial dysfunction is the main cause of various heart diseases such as myocardial infarction, myocarditis, hypertrophic cardiomyopathy, and heart failure. In recent years, many studies have confirmed that traditional Chinese medicine (TCM) can be used to improve myocardial mitochondrial function and treat heart disease. The purpose of this review was to analyze the regulatory mechanism of myocardial mitochondrial function by summarizing the effect of TCM on cardiovascular disease.
Diffusion Dynamics of Energy Service Companies in the Residential Sector
Authors: Blumberga Andra , Blumberga Dagnija , Žogla Gatis , Rochas Claudio , Rošā Marika , Barisa Aiga
Published: March 2021

Energy service contracting (EPC) is one of the private sector instruments to improve end use energy efficiency. The dominant part of EPC projects is implemented in the industrial, governmental and municipal sectors while the residential sector has been less attractive to energy service companies (ESCO). This paper describes the first EPC project implemented in a multi apartment building in Latvia. A combination of this project experience, the system dynamics modelling, and microeconomics theory has been used to develop the system dynamics model to capture the interactions and feedback from the ESCO market for residential building energy efficiency. Three policy tools were tested for use in improving the performance of the system. The purpose of the tests was to facilitate the diffusion (or distribution) of EPC in the residential sector.
Use of Simulator for Decision to Reuse of Industrial Effluents
Authors: dos Santos Ana Cecilia Correia , Braga Elias Andrade , Rodrigues Igor L. S. , de Araϊjo Kalid Ricardo , Kiperstok Asher
Published: March 2021

The need to reduce operational inefficiency because no generation of effluent encourages industries to search improvements in the procedures and technologies. However, in case that is not technically or economically feasible, the water reuse is a good option. The removal of volatile organic compounds (VOC) in liquid streams at a nitrogen fertilizer industry is carried out in a stripper that generates treated condensate that can be reused. The present work aims at the reuse of the treated condensate to produce steam and it was conducted according to methodology: collection and reconciliation of data in the industrial plant; simulation operating conditions and changed conditions for the most contaminant removal; tests in loco and analysis of physicchemical parameters to assess the quality of the treated condensate. The simulation was performed in steady state for two scenarios: the first one using operating conditions with vapor pressure between 3.2 bar and 6.0 bar and a flow rate of saturated steam between 1.5 t/h 5.0 t/h; the second simulation scenery considered the removal of the D stream process of the stripper, that has a high concentration of ammonia and methanol. In the first scenario, it was observed by manipulating of the pressure to 6.0 bar and steam flow to 2.0 t/h make better the removal ammonia efficiency. For the second scenario has also greater efficiency in the removal of both ammonia and methanol. The tests in loco and physic-chemical analysis showed that removal of the D stream process can enable the of reuse to make up for water in boiler to produce steam of until 41 bar after additional treatment, reducing the conductivity and iron concentration. The reuse of this treated condensate provides an economic gain of approximately US$ 500 000 each year, reducing the cost with the use of demineralized water and wastewater treatment. The use of the simulator allowed studying different scenarios, to reduce the number of experimental tests in loco and establishing routes for reuse industrial wastewater.
“Crimigración” como estrategia electoral: El caso del Brexit
Authors: Boza Martínez Diego
Published: March 2021

La inmigración se ha convertido en un arma electoral. La propagación de una imagen negativa sobre la inmigración como estrategia para obtener votos ha sido utilizada en diversas situaciones. El elemento fundamental de este discurso se centra en la vinculación entre inmigración y delito. En este trabajo se discute sobre la utilización de la inmigración y su vinculación con el crimen como instrumento para obtener ventaja electoral durante la campaña del Brexit. En este sentido, se han analizado las portadas de los periódicos y tabloides británicos durante los dos meses previos a las elecciones y las referencias que contenían sobre la inmigración. Además, se han estudiado los vínculos entre esta utilización y la evolución de las encuestas electorales. Puede afirmarse que, durante la campaña electoral del referéndum del Brexit, los partidarios de abandonar la Unión Europea convirtieron la inmigración, especialmente la crimigración, en un elemento trascendental para obtener la victoria.
Notas de jurisprudencia.- Tribunal Constitucional
Authors: Escribano López Francisco
Published: March 2021

RESUMEN:

I. Constitución. A. Fuerza normativa. B. Interpretación.

II. Derechos y libertades. A. Derechos fundamentales y libertades públicas. B. Derechos y deberes de los ciudadanos. C. Principios rectores de la política social y económica. D. Garantía y suspensión de estos derechos.

III. Principios jurídicos básicos.

IV. Instituciones del Estado. A. La Corona. B. Las Cortes Generales. C. El Tribunal Constitucional. D. La Administración Pública. E. El Poder Judicial.

V. Fuentes.

VI. Organización territorial del Estado. A. Comunidades Autónomas. A.1. Autonomía. B.2. Competencias. B. Corporaciones Locales. A.1. Autonomía. B.2. Competencias.

VII. Economía y Hacienda. A. Principios generales. B. Presupuestos. C. Organización territorial. D. Tribunal de Cuentas.
Novedades y características del recurso especial en materia de contratación pública
Authors: Candela Talavero José Enrique
Published: March 2021

SUMARIO:I. INTRODUCCIÓN.II. EVOLUCIÓN NORMATIVA Y MARCO LEGAL DEL RECURSO ESPECIAL EN MATERIA DE CONTRATACIÓN PÚBLICA. 1. Regulación comunitaria.III. NOVEDADES DE LA NUEVA REGULACIÓN SOBRE EL RECURSO ESPECIAL.IV. NOTAS PROPIAS Y PECULIARIDADES DEL RECURSO ESPECIAL EN MATERIA DE CONTRATACIÓN PÚBLICA. 1. Rasgos esenciales. A) Potestativo-Preceptivo. B) Eficaz. C) Rápido. D) Especial. E) Excluyente y alternativo: La calificación del recurso. F) Paralizante del procedimiento. G) Supervisor-Revisor. V. CONCLUSIONES.VI. BIBLIOGRAFÍA.
Reseña de las Disposiciones Generales de la Junta de Andalucía
Authors: Guichot Reina Emilio
Published: March 2021

Se recogen y comentan las disposiciones generales más relevantes de la Junta de Andalucía publicadas en el BOJA en los meses de agosto a diciembre de 2019
Effects of feeding strategies on growth，body composition, intestine digestive enzymes activities and intestine histology of Megalobrama pellegrini (Tchang, 1930) early juveniles raised in flow-through system
Authors: Qu Huantoao , Chen Lei , Yang Jinyuan , Liao Jianxin , Wei Dai , Lu Xuebao
Published: March 2021

To determine the effects of feeding rate and feeding frequency on growth performance, digestive enzymes activities, and intestine development of Megalobrama pellegrini in a replicated flow-through system, we conducted a 42-day experiment. We designed three feeding rates (5%, 6.5%, and 8% body weight/day, BW/d) and two feeding frequencies (2 and 3 meals/day; m/d) in this experiment. Fish (0.57 ± 0.01 g) were distributed into 18 tanks with 70 individuals and fed with a commercial diet (33% crude protein, 4% total lipid). Results showed that the highest weight gain was found in the fish fed diet with 6.5% BW/day and 3 m/d, which was significantly higher in comparison with that of other feeding rate groups (5% BW/d and 6.5% BW/d) at both feeding frequency (2 and 3 m/d). Fish growth performance was significantly affected by the feeding rate but not by the feeding frequency. The significantly higher feed conversion ratio (FCR) was recorded at 8% BW/d with 3 m/d than other treatments. Furthermore, fish fed diet at 8% BW/d with 2 m/d had significantly high mortality during the middle of this trial. In contrast, we found that other fish groups’ survival rates were higher (over 90%), and there were no significant differences among them. We saw a significantly lower whole-body crude protein, lipid, and intestinal digestive enzymes in fish fed at a ratio of 8% BW/d with 3 m/d compared with other treatments. Moreover, our findings revealed intestinal villi fusion and exfoliation in this group compared with other treatments. In conclusion, the Megalobrama pellegrini received a feeding rate of 6.5% BW/d, and a feeding frequency of 2 m/d may be the optimum feeding regime for raising Megalobrama pellegrini in a flow-through system.