bluuebunny/crossref_metadata_2025_split huggingface dataset:
State of play of the dairy sector in Algeria: between objectives and dependencies: an overview
Authors: Meklati Fawzi Rostane , Meribai Amel , Yezli Nora , Ben-Mahdi Meriem Hind 
Published: May 2020

Abstract
The public authorities have invested considerable financial resources over recent decades in restructuring the dairy milk sector in Algeria with an objective of reducing the country’s dependency on milk imports. This work aims to draw up an inventory of the status of the dairy sector in Algeria on the basis of data collected from published literature while identifying the reasons that slowed down the development of national production. The imports of milks and derivatives estimated at US$1.40 billion in 2018 are ranked in second place after cereals and account for 16.37% of the total import bill for food products (US$8.57 billion). This worrying situation is all the more constraining in a context of economic crisis induced by the downfall of the country’s incomes, due to an almost exclusive dependence on hydrocarbon exports, whose prices have decreased significantly in the last few years. At present, the State’s measures undertaken to promote the various stakeholders of the dairy sector to increase milk production unfortunately remain limited in scope. Further actions will have to be implemented to get this strategic sector back on course.
Characterization of newly developed pepper cultivars (Capsicum chinense) ‘Dieta0011-0301’, ‘Dieta0011-0602’, ‘Dieta0041-0401’, and ‘Dieta0041-0601’ containing high capsinoid concentrations and a strong fruity aroma
Authors: Seki Tetsuya , Ota Masafumi , Hirano Hiroto , Nakagawa Kiyotaka 
Published: May 2020

Abstract

Capsaicinoids are responsible for the pungent flavor of peppers (Capsicum sp.). The cultivar CH-19 Sweet is a non-pungent pepper mutant that biosynthesizes the low-pungent capsaicinoid analogs, capsinoids. Capsinoids possess important pharmaceutical properties. However, capsinoid concentrations are very low in CH-19 Sweet, and Capsicum cultivars with high content capsinoids are desirable for industrial applications of capsinoids.
Habanero, Bhut Jolokia, and Infinity are species of Capsicum chinense, and have strong pungency and intense fruity flavors. In the present study, we report new cultivars with high concentrations of capsinoids (more than ten-fold higher than in CH-19 Sweet), and showed that these cultivars (Dieta0011-0301 and Dieta0011-0602 from Bhut Jolokia, Dieta0041-0401 and Dieta0041-0601 from Infinity) are of nutritional and medicinal value and have fruity aromas. We also obtained a vanilla bean flavor, vanillyl alcohol, and vanillyl ethyl ether from capsinoids in the fruit of these cultivars following the addition of ethanol at room temperature.

Abbreviations
p-AMT: putative aminotransferase; C. annuum: Capsicum annuum; C. chinense: Capsicum chinense; dCAPS: derived Cleaved Amplified Polymorphic Sequences.
Enhanced sugar chain detection by oriented immobilization of Fc-fused lectins
Authors: Iijima Masumi , Yamada Yuki , Nakayama Tsutomu , Kuroda Shun'ichi 
Published: May 2020

Abstract
We report a novel scaffold for clustering and oriented immobilization of human IgG1 Fc-fused lectins on biosensors without chemical modifications. This approach uses a bio-nanocapsule (BNC) displaying a tandem form of IgG Fc-binding Z domains derived from Staphylococcus aureus protein A (ZZ-BNC). Incorporating ZZ-BNC effectively increased both the sensitivity and sugar chain-binding capacity compared with the condition without ZZ-BNC.
The physics of a small-scale tearing mode in collisionless slab plasmas
Authors: Geng Chen , Dickinson David , Wilson Howard 
Published: May 2020

Abstract
Microtearing modes have been widely reported as a tearing parity electron temperature gradient driven plasma instability, which leads to fine scale tearing of the magnetic flux surfaces thereby resulting in reconnection of magnetic field lines and formation of magnetic islands. In slab geometry it has previously been shown that the drive mechanism requires a finite collision frequency. However, we find in linear gyrokinetic simulations that a collisionless fine-scale tearing parity instability exists even at low and zero collision frequency. Detailed studies reveal that these slab modes are also driven by electron temperature gradient but are sensitive to electron finite Larmor radius effects, and have a radial wavenumber much smaller than the binormal wavenumber, which is comparable to the ion Larmor radius. Furthermore, they exist even in the electrostatic limit and electromagnetic effects actually have a stabilising influence on this collisionless tearing mode. An analytic model shows that this collisionless small scale tearing mode is consistent with a tearing parity slab electron temperature gradient (ETG) mode, which can be more unstable than the twisting parity ETG mode that is often studied. This small-scale tearing parity mode can lead to magnetic islands, which, in turn, can influence turbulent transport in magnetised plasmas.
AC loss and contact resistance in REBCO CORC®, Roebel, and stacked tape cables
Authors: Yagotintsev K , Anvar V A , Gao P , Dhalle M J , Haugan T J , Van Der Laan D C , Weiss J D , Hossain M S A , Nijhuis A 
Published: May 2020

Abstract
Many high-temperature superconductor (HTS) applications require superconducting cables with high currents while operating in an alternating magnetic field. HTS cables should be composed of numerous superconducting tapes to achieve the required current capacity. Alternating current and magnetic fields cause AC losses in such cables and can provoke conductor instability. AC losses and contact resistances were measured of several cable designs based on commercially available REBCO tapes at the University of Twente. The AC loss was measured under identical conditions for eight REBCO conductors manufactured according to three types of cabling methods—CORC® (Conductor on Round Core), Roebel, and stacked tape, including a full-size REBCO CICC (cable in conduit conductor). The measurements were done at T = 4.2 K without transport current in a sinusoidal AC magnetic field of 0.4 T amplitude and frequencies from 5 to 55 mHz. The AC loss was measured simultaneously by calibrated gas flow calorimeter utilizing the helium boil-off method and by the magnetization method using pick-up coils. Also, the AC loss of two CORC® conductors and a Roebel cable was measured at 77 K. Each conductor was measured with and without background field of 1 T. The measured AC coupling loss in the CORC® and Roebel conductors is negligible at 4.2 K for the applied conditions while at 77 K coupling loss was observed for all conductors. The absence of coupling loss at 4.2 K can be explained by shielding of the conductor interior; this is confirmed with measurement and calculation of the penetration field of CORC® and Roebel cables. The inter-tape contact resistance was measured for CORC® and stacked tape samples at 4.2 and 77 K. It was demonstrated that a short heat treatment of CORC® conductor with solder-coated tapes activates tape-to-tape soldering and decreases the contact resistance. The reduction of contact resistance by two orders in magnitude to tens of nΩm is comparable with the interstrand contact resistance in ITER Nb3Sn type conductors.
Hexagonal Snakes With Alpha Labeling Along A Path
Authors: Lalitha P , Tamilselvi L 
Published: May 2020

Abstract
The graceful labeling of a graph G with p vertices and q edges is an injection f: V (G) to {0, 1, 2… q} such that, when each edge uv is assigned the label |f (u)-f (v)|. The resulting edge set are {1, 2, 3 …q}. When graceful Labeling is applied to a graph it is known as a Gracful graph. In this paper, we introduce the graph HSn by arranging a series of Hexagons glued to each other by attaching the any one vertex of the first hexagon to the next one and the second hexagon to the third one and so on which is called a Hexagonal Snake. Thus, ‘n’ number of of hexagonal snakes are fixed along a path. We have applied graceful labeling to this Hexagonal Snake graph and have shown that it satisfies α-labeling.
Electronic structure calculations of some Cr based spintronic half Heusler alloys
Authors: Meena D K , Arora G 
Published: May 2020

Abstract
Several XYZ materials with X and Y as 3d and 4d transition metal elements offer half-metallic magnetic properties. In such half-metallic materials there is a band gap at the Fermi energy for the minority spin channel, but not for the majority spin channel. In this work, we present the energy bands and density of states of half-Heusler alloys namely, KCrZ (where Z=S, Se and Te) using first principles full potential linearized augmented plane wave method by applying PBEsol approach of generalised gradient approximation. It is seen that these compounds show half-metallic character with large magnetic moment of about 5.0 μB Density of states and energy bands are analysed to discuss about the origin of large values of spin moment in such compounds.
Theoretical analysis of Sn-doped ZnS for optoelectronic applications
Authors: Gaur A , Khan K , Soni A , Dashora A , Sahariya J , Ahuja U 
Published: May 2020

Abstract
The wide band gap semiconductors like ZnS have gained tremendous response in the optoelectronic applications claiming their significant role in device operability at varied compositions and temperature. We have performed a detailed study of pure and Sn doped ZnS using Perdew-Burkhe-Ernzerhof (PBE) exchange correlation as embodied in Wien2k code. The doping of 6.25% Sn at Zn site, in ZnS has reduced the band gap (Eg) to 1.70 eV from 2.15 eV (Eg for bulk ZnS) thus making it more suitable for the applications of solar cell. Various properties such as band structure, density of states and integrated absorption coefficient depicting their electronic and optical nature are examined. The spectra of absorption curve states the possibility of material to be solar if it lies in the visible spectra range of 0-5 eV.
Structural and Optical Study of Oxygen Irradiated Rare Earth Doped Nickel Ferrite
Authors: Dhyani Reena , Joshi Lekha , Rawat Pankaj Singh , Dixit Gagan , Srivastava R.C. , Asokan K. 
Published: May 2020

Abstract
In present work, NiFe2O4 nanoparticles doped with 4% Ce ions were synthesized by chemical route using nitrates of iron, nickel and cerium with citric acid. Irradiation with swift heavy ions can modify the properties of ferrites significantly. Modification depends upon type of ion, energy and fluence used for irradiation. Presently NiCe0.04Fe1.96O4 sample was irradiated with 100 MeV O7+ beam at fluencies of 1×1012 ions/cm2, 5×1012 ions/cm2, 1×1013 ions/cm2 and 2×1013 ions/cm2. All samples (pristine and irradiated) were characterized by XRD, FTIR, Raman and UV-Vis spectroscopy. XRD patterns and FTIR spectra confirmed the spinel structure of sample. XRD parameters like crystallite size, lattice parameter, strain etc. were calculated, which show significant change only at the fluence of 5×1012 ions/cm2. UV-Vis spectra show two direct band gaps corresponding to low and high spin in all samples. Band gap was found to be higher for sample irradiated at 2×1013 ions/cm2 fluence in comparison to pristine sample. It is found that irradiation with 100 MeV oxygen affect the structural parameters in random way while optical band gap shows increasing trend with fluence.
A simulator for assembly practices of robotic entities based on plug and play building blocks
Authors: Portilla-Meneses L A , Puerto-Cuadros E G , Vera-Rivera F H 
Published: May 2020

AbstractThis paper describes a simulator of physical robotic entities. A robotic entity simulator includes new functionalities in the simulation: flexibility by allowing the creation of many types of robots such as arms, legs and hands. Multiplatform and multi-user by allowing multiple users to enter from multiple systems. Scalability to be developed as a web application being this type of technology which is currently at the forefront and therefore the possibility of developing new modules and continuous improvements. Three test cases were developed including the design of a hand, leg and a model to represent movement through servos in a real model of a planar type pantograph robot. This simulator can be used as a pedagogical and innovative strategy for training and learning in the field of robotics. Useful for teaching and laboratory practices of research in artificial intelligence and related in an individual, group and online way.
How do software architects perceive technical debt in Colombian industry? An analysis of technical debt causes
Authors: Pérez B , Correal D , Vera-Rivera F H 
Published: May 2020

Abstract
Technical debt is a metaphor used to describe technical decisions that can give the company a benefit in the short term but possibly hurting the overall quality of the software in the long term. Architectural decisions are considered one of the most common sources of technical debt, therefore, it becomes relevant to understand what causes lead to technical debt from the point of view of software architects. To accomplish this task, we used a survey research method to collect and analyze a corpus of 28 software architects from Colombia, as a part of the InsighTD project. Results showed that inappropriate planning is the most cited technical debt cause by software architects. However, results differ when comparison against engineers and manager are performed. Innacurate time estimate and producing more without quality were the most selected causes of technical debt according to engineers and managers. To improve this comparison, the rank-biased overlapping technique was used. As more elements were compared, more similar were these lists of causes among all three roles.
A systematic review of the literature on information technology outsourcing services
Authors: Sanguino Reyes M R 
Published: May 2020

Abstract
Services outsourcing information technology is a strategy he has adopted today for information technology governance. The decision to opt for this strategy be take in order to maximize the benefits to the organization in terms of efficiency, profitability, sustained reductions in costs and utilization of available resources. But nevertheless, these decisions have not always been successful, as the process to achieve successful results, it is lacking in most of the time of formality and methodology to guide activities to be undertaken by both the customer and the supplier. This document aims to make a brief review of the literature in the area of information technology outsourcing, specifically in aspects such as models, methodologies and their governance. Analysis of the information collected allowed evidence that although there are models and good practices information technology outsourcing, none of them covers the activities necessary for the client and the provider, in defining specific roles, tasks for each of the phases of the process, useful deliverables for each, or a measurement system that has tools to evaluate it.
Technological advances in computer science that define maintenance concerns in industry 4.0 in Colombia
Authors: Dueñas Ramírez L M , Villegas López G A 
Published: May 2020

Abstract
Maintenance during industrial development has evolved and adapted to each challenge presented. The progress and development of computer science have opted for the massive use of information and communication technologies that arise in industrial processes generating new possibilities in maintenance management and operation. In Colombia, public and private organizations have carried out exhaustive studies on the use and maturation of technology in different industrial sectors. These studies provide valuable information on the technological progress of the country and the gaps that exist to achieve a competitive country globally. These data were analyzed and purchased with the relevance that maintenance has in Colombian industries and with current maintenance management techniques focused on improving decision making within organizations. This research establishes, within a timeline, the concerns that in the short, medium and long term should meet the maintenance in the so-called industry 4.0 in Colombia contributing to the country’s industry in improving one of its nerve processes to have companies sustainable and competitive.
Teaching based on models and transformations under the active learning approach
Authors: Álvarez Reyes L P , Cuesta Quintero B 
Published: May 2020

AbstractRequirements engineering is a fundamental part of the software development cycle and, therefore, must be present in the curricula of systems engineering programs. In this document, a set of training situations based on active learning principles is presented to facilitate the teaching of requirements engineering. In the application of the methodology, the subjects of the software engineering line of the systems engineering program of the “Universidad Francisco de Paula Santander, Ocaña, Colombia” were used, guiding the process for teaching requirements engineering in agile environments with a view from the model driven engineering and its implementation in a virtual environment as a complement to the face-to-face classes. The strategy allowed participants to be organized in teams to improve requirements engineering learning. An activity guide based on scenarios with real problems was used, which allowed to strengthen the relationship between theory and practice of the subject to generate models and transform them into the search for solutions to problem domain under study.
Progress in the evolution of the use and management of data in Colombia
Authors: Guerrero-Bayona A M , Rosado-Gómez A A 
Published: May 2020

Abstract
The current society seeks in technology the solution to reduce the time and effort required to carry out any transaction with another person or organization, more and more platforms and resources that allow the capture, transmission, storage and processing of information generated by the systems. The electronic government is responsible for regulating the management of communications, data and services that must be offered to citizens by public entities, with the aim of maintaining an agile and online interaction. This research makes a review of the literature on how the definition, use, and objectives of electronic government have been approached, focusing on the relationships that constitutes it and establishing an evolution of the concept in the last six years. Among the results it is necessary to build a consensus in its definition, additionally, the remains that are available for its implementation, the way of structuring, managing and evaluating it are mentioned.
Importance of computer science in the results of the evaluation of higher education in Colombia
Authors: Rodriguez A M , Quintero B T , Moreno J A 
Published: May 2020

Abstract
Information and communication technologies have transformed social behavior into teaching and learning processes, however, it is debated whether greater access to technology influences the quality of knowledge acquired by undergraduate students. This article aims to determine the incidence of information technology and communication tools in the results obtained in the Saber Pro 2017-2018 tests by administration and related students; these tests are the exams that the Colombian state performs annually to determine the quality of higher education in public and private universities. The achievement of this objective was carried out through an analysis of variance that consists in evaluating if there are significant differences in the results, according to the students who have a computer, have access to the Internet and the time in hours dedicated to this. The analysis of variance left as the main conclusion that the use of Information and Communication Technologies increases the chances of improving the results obtained by students.
Change-point analysis of the demand for medicines
Authors: Valderrama Balaguera J C , Castro Silva H F , Velásquez Pérez T 
Published: May 2020

AbstractDuring the last years, the model of change points has been widely used to predict data series and it can be demonstrated success cases of its application in diverse areas. However, the usefulness of the theory of the points of change for the prognosis of the demand for medicines has not been proven. In this research with a quantitative approach, the use of the theory of points of change in prognosis of the demand for medicines in Healthcare Providers in Colombia is analyzed. The forecasts obtained with the theory of change point are compared with the forecasts obtained with traditional method of Holt-Winters. As a result of this study, the “best” model is identified and recommendations for the implementation of the proposed model are presented. This study is useful for administrators of entities providing health services interested in optimizing budget allocation and improving the inventory planning strategy. The results presented in this article, will allow to incorporate the results of the methodology in the field of modeling of systems of inventories of medicines.
Diagnostic tools for measuring the manufacture of Colombian traditional emerging products
Authors: Valdés-Solano D M , Fonseca-Herreño L C , Alba-Maldonado J M 
Published: May 2020

Abstract
Anise-based drink, “Bolegancho”, production represents an economic source of livelihood for families; however, its artisanal production does not comply with environmental regulations. A multidisciplinary analysis at the social, geographical, and environmental levels of “Bolegancho” production is carried out. In the first part, surveys were applied to producers, determining that they are in a socioeconomic stratum 1 and 2, where the majority are dedicated to production in their homes and not to distribution. Subsequently, the production areas were geo-referenced for the collection of water and soil samples. For the environmental component, physicochemical and microbiological tests were carried out on the “Bolegancho” and the water used to produce it, identifying the lack of sanitation and the effects on the final product; on the other hand, the results that are poured into the soil according to the analyses may be beneficial for crops due to their organic matter content. Regarding the air, microbiological tests determined the presence of different types of bacteria and fungi causing alterations in the environment, which implies that the distillation processes of the “Bolegancho” should be studied from a multidisciplinary perspective.
On r-Dynamic Coloring of Neighborhood Corona of Path with Some graphs
Authors: Aparna V. , Mohanapriya N. 
Published: May 2020

Abstract
Consider the simple, finite, connected and undirected graph H = (V, E) in which V and E denotes the vertex set and edge set of the graph H. The r-dynamic coloring of a graph H is the proper p-coloring of the vertices of the graph H in which |c(N(a)| ≥ min{r, d(a)}, for each

a
∈
V
(
H
)

. The lowest p which allows H an r-dynamic coloring with p colors is called the r-dynamic chromatic number of the graph H and it is denoted as X
r (H). Let H
1 and H
2 be two graphs with vertex disjoint sets of n
1 and n
2vertices. The neighborhood corona of two graphs H
1 and H
2 is obtained by taking one copy of the graph H
1 and n
1 copies of the graph H
2 and by joining each neighbor of the ith
vertex of H
1 to each and every vertex of the ith
copy of H
2. It is denoted as

H
1

⋄

H
2

. In this paper, we determine the r-dynamic chromatic number of the neighborhood corona of path graph Pm
with path Pn
, complete graph Kn
, cycle Cn
and star graph K1,n
. These graphs are denoted as

P
m

⋄

P
n

,

P
m

⋄

K
n

,

P
m

⋄

C
n

and

P
m

⋄

K

1
,
n

respectively.