analysis of the adoption of third party in the … › ces › ces2018 › ces5-8-2018 › p ›...
TRANSCRIPT
Contemporary Engineering Sciences, Vol. 11, 2018, no. 8, 357 - 370
HIKARI Ltd, www.m-hikari.com
https://doi.org/10.12988/ces.2018.8223
Analysis of the Adoption of Third Party in
the Logistics Operations of a Sample of Companies
Constituted in the City of Neiva
Andrés Mauricio Navarrete Ramos
Industrial Engineering, University Corporation of Huila Corhuila, Colombia
Denicce Licht Ardila
Industrial Engineering, University Corporation of Huila Corhuila, Colombia
Jorge Bernardo Ramírez Zarta
Industrial Engineering, University Corporation of Huila Corhuila, Colombia
Ana Lucia Paque Salazar
Industrial Engineering, University Corporation of Huila Corhuila, Colombia
Copyright © 2018 Andrés Mauricio Navarrete Ramos et al. This article is distributed under the
Creative Commons Attribution License, which permits unrestricted use, distribution, and
reproduction in any medium, provided the original work is properly cited.
Abstract
The outsourcing of logistics operations has become a strategic option for companies
today. In the city of Neiva, capital of the Department of Huila in Colombia, this
model is recently used. In the present work, an analysis of the degree of outsourcing
of the logistic activities presented in the companies of the city of Neiva,
contemplating its main factors, advantages and disadvantages of its application, as
well as the degree of contribution to the competitiveness of the organizations that
decided to generate an outsourcing contract for said operations.
Keywords: logistics, outsourcing degree, outsourcing
358 Andrés Mauricio Navarrete Ramos et al.
1 Introduction
Logistic operations have evolved exponentially during the last decades. The
technology, infrastructure, equipment and personnel have been the components
with the greatest evolution, allowing a better response to the needs of its customers
resulting in a better service. The logistics operators thus become an option that
supports the strategy of organizations. These must adapt to the continuous change
of the sector, be flexible but specialized at the same time, and constantly increase
their capacity to face the challenges demanded by the management of the supply
chain in organizations.
However, why do companies decide to outsource activities related to logistics? In
this article we present the factors identified as those that motivate the management
of an organization to outsource and how to monitor and evaluate the performance
of these third parties, taking into account that every day that passes, the logistics
outsourcing has been consolidated as a tool and strategic methodology to manage
business [1], [2].
The population for the present work is established as a set of 100 companies
incorporated in the city of Neiva belonging to different productive sectors
(transport, services, industrial production, fish farming, oil & gas, financial, public
sector, construction, trade, automotive and agroindustrial). This population also
generates a series of factors that become disadvantages when outsourcing [2], [3].
The presence of advantages and disadvantages in a certain way is related to the
culture and idiosyncrasy of the region and to this extent it is necessary to ask
additionally what kind of processes are outsourced related to logistics within the
organizations in Neiva. Because it is outsourced, what is the degree of outsourcing
of these processes, specialized companies are contracted or not in logistics, or, in
case of not being outsourced these activities, as they are developed within the
organization, which resources are designated for them and in both cases, how the
cost-benefit ratio has been analyzed [4], [5].
An additional group of companies present in the city of Neiva is made up of
hotels. This sector has been identified as of great importance because it is a direct
actor in the strengthening of tourism as one of the productive bets of the region. In
this sector, performance has been characterized by poor customer service, and since
companies dedicated to this activity have been constituted exponentially, the union
of these is scarce and does not support the achievement of objectives. The hotels
see as a competitive advantage the adoption of quality management systems, which
in their support processes would support the logistics processes making them more
effective. The hotels with greater capacity and that currently have these systems as
a management tool; have outsourced logistics services [6], [7].
The Chamber of Commerce of Neiva [8] has identified the activities developed
by the registered companies that are part of the logistics chain. Table 1.
Analysis of the adoption of third party in the logistics operations 359
Table 1. Logistics operator activities in Neiva
ACTIVITY %
Municipal freight transport by road 67,2%
Storage and deposit 10,5%
River transport 6,0%
Coastal shipping 4,5%
Other activities with less participation are: international transport of cargo by
road, handling of cargo and transport of railway.
The Chamber of Commerce of Neiva [8], [9] also identified some of the
difficulties presented in these companies dedicated to the logistics sector. The main
difficulty with a 74% presence in the total number of companies corresponds to the
fact that the employees are hired as temporary staff, which contrasts with the fact
that the same study established that 60% of the organizations have higher annual
sales 250 million pesos.
Additionally, the city of Neiva, as a region in the way of technological, industrial
and economic development, presents a series of its own characteristics, evidenced
by the culture, norms and customs present in its inhabitants and that influence the
way of doing business or manage an organization. The study indicated that 44.5%
of the companies in the city concentrate their time and resources in controlling sales
due to a large extent and as indicated by [10], [11]. Which isn’t counted within the
organizations with the interest of knowing their own processes; nor are there any
tools that identify their relevant variables, so that improvements cannot be applied
or adequate information can be acquired to make timely decisions that result in
better production, greater sales. In addition, these in the generation of sufficient
resources to innovate in technology applied to the organization and continue to
improve in its competitiveness. In contrast, only 2.5% cares to participate in
processes of integration to productive chains at a national or international level. The
absence of strategic planning in most companies is identified as a problem to correct
according to the study of the Chamber of Commerce [8].
The municipal development plan, as well as the departmental since 2015, have
contemplated and established as a bet that contributes to competitiveness the
implementation of tools and logistics chains that in turn support other productive
bets in the region such as fish farming, The agroindustrial sector, tourism,
construction, thus seeking the improvement of the indicators that have kept the city
in the low middle range in terms of competitiveness at the national level [8].
A logistics operator is then presented as an ally for those companies that decide
to improve their competitiveness and after strategic planning, deliver their logistics
operations such as transport, storage and distribution of products, materials in process and additional services, maquila, packaging, delivery management and returns.
360 Andrés Mauricio Navarrete Ramos et al.
Being a specialized ally, its contribution to the effectiveness of its clients' processes
becomes a benefit that represents a significant benefit to management, working with
attractive income-cost relationships for clients [12], [13]
The logistics operator also allows identifying and realizing synergies between the
company and the different stages of its supply chain, making it appropriate to the
capacity and magnitude of this, through a structured and methodological process
[14], [15].
Figure 1 shows the percentage of outsourcing of logistics operations worldwide
according to [16], [17].
Figure 1. % Outsourcing of logistics operations worldwide.
2 Methodology
The main objective of the research is to determine the degree of adoption of
outsourcing of logistics operations within the city of Neiva. A sample of 100
companies from different economic sectors is contemplated according to Table 2;
to these companies an instrument is applied with the same objective of measuring
the degree of outsourcing of the logistics processes, which is given an internal
validation supported in a reliability analysis of cronbach coefficient [18], [19].
Table 2. Sample size
VARIABLES VALUES
POPULATION 3.091
CONFIDENCE LEVEL 95% 1,96
ERROR 7% 0,07
PROBABILITY OF ACCIDENT 0,87
PROBABILITY OF ERROR 0,13
SAMPLE SIZE 100
Analysis of the adoption of third party in the logistics operations 361
Figure 2. Cronbach coefficient reliability analysis
The type of company was identified for each of the 100 companies that are part
of the sample. Figure 3 shows this classification.
Figure 3. Size of the companies in the sample
The research was developed on six areas of interest, these are:
• Company Profile
• Competitive advantages
• Degree of outsourcing of logistics operations
• Cost benefit ratio of outsourcing
• Disadvantages and advantages of outsourcing
• Opinion of businessmen
The 100 companies identified for the analysis, domiciled in the city of Neiva are
part of the following productive sectors: transport, services, and industrial
production, fish farming, oil & gas, financial, public sector, construction, trade,
automotive and agroindustrial [20].
In order to be able to execute an adequate analysis, the first thing that was
developed was an investigation about the behavior that presented the constitution
of new companies in the city, related to the sector to which each one belongs. Table
3 gives us this information [20], [21].
25%
38%8%
29%
SIZE OF THE COMPANY
MICRO SMALL MEDIUM BIG
362 Andrés Mauricio Navarrete Ramos et al.
Table 3. Constitution and assets of companies in Neiva by economic sector
Source: Taken from Chamber of Commerce of Neiva, business movement 2016.
The variation shows us a particular behavior, although the total of companies
incorporated in the city increased (27%), the capital with which they enrolled
decreased (-45%).
According to the information obtained previously, we proceed to obtain the
sample size to perform the respective analysis. In Table 4, we found this
information.
Table 4. Sample size
VARIABLES VALORES
POPULATION 3.091
CONFIDENCE LEVEL 95% 1,96
ERROR 7% 0,07
PROBABILITY OF ACCIDENT 0,87
PROBABILITY OF ERROR 0,13
SAMPLE SIZE 100
With this sample of 100 companies will work on the application of an instrument
that contains questions corresponding to the following inquiries: who is responsible
for logistics operations in the company, how are the employees in your company,
which considers that are the advantages to outsource and if you have outsourced
services or not in your operation [22], [23].
3 Results
Once the instrument for the identification of those responsible for logistics
activities in the sample of companies has been applied, it has been identified that,
Participation
Code Economic activity company Assets company Assets company Assets Investment
1 Farming 87 10.735 122 1.417 40% -87% 5,0%
2 Exploitation of Mines and Quarries 13 728 11 418 -15% -43% 1,0%
3 Manufacturing industry 56 801 72 1.082 29% 35% 4,0%
4 Electricity, Gas and Water 11 174 15 447 36% 157% 1,0%
5 building 113 3.632 156 6.183 38% 70% 20,0%
6 Commerce 189 29.817 233 6.130 23% -79% 20,7%
7 Transport and comunication 68 5.408 69 1.539 1% -72% 5,0%
8 Finance and insurance 11 88 16 96 45% 9% 0,3%
9 Services 254 4.756 324 13.293 28% 179% 43,0%
TOTAL 802 56.139 1018 30.605 27% -45% 100,0%
2015 2016 Variation
Analysis of the adoption of third party in the logistics operations 363
in most of them, the role of Manager or Administrative Chief is responsible for the
development of logistics operations. You can find the other roles commissioned in
Figure 4.
Figure 4. Responsible role of logistics in the company
On the other hand, the instrument has established that, of the total sample, 54
companies claim to have outsourced some of the logistics activities required by
their organization. It was possible to identify in the same way that the larger the
size of the company, in relation to the number of employees, the greater the degree
of outsourcing of the logistics activities. Table 5.
Table 5. Pearson Correlations
Correlación Pearson Number of employees
Quality of Outsourcing
Outsourcing Cost
Number of outsourced
logistics activities
Number of employees 1 ,279* 0,256 ,305**
Quality of Outsourcing ,279* 1 0,227 -0,093
Outsourcing Cost 0,256 0,227 1 0,097
Number of outsourced logistics activities
,305** -0,093 0,097 1
Figure 5 shows the data, which makes it possible to identify the logistics activities
outsourced by the companies in Neiva, as well as the level of satisfaction with the
same provided by the third party, who in all cases is a specialized logistics operator.
The outsourced activities correspond to:
364 Andrés Mauricio Navarrete Ramos et al.
• Transportation and distribution
• Purchases and management of suppliers
• Inventory management
• Storage
• Foreign trade
• Additional services such as marking, labeling, packaging, assembly
• Other logistic activities
The information obtained allows us to identify that, in general, companies are
satisfied with the management carried out by the contracted logistics operators. The
78.95% of the evaluations place the perception in "good", 17.54% in "Excellent"
and 3.51% in "Bad". It is established that there is a balance between the costs
generated by the logistics operation and the perceived satisfaction of the service,
hence the role of administrative manager is the most frequent in charge of the
logistics operations of the company, since it is also the person who performs a
control of the costs of the management of the company [14], [15].
Figure 5. Outsourced logistics activities and level of satisfaction.
The contracting with logistics operators and outsourcing these activities, according
to the research, responds to the following reasons within the organization. Figure 6.
20,5%11,1%
50,0%
24,0%
0,0% 0,0%
28,6%
79,5%88,9%
0,0%
72,0%
100,0% 100,0%
71,4%
0,0% 0,0%
50,0%
4,0% 0,0% 0,0% 0,0%
0,0%
20,0%
40,0%
60,0%
80,0%
100,0%
120,0%
Regular
Good
Excellent
Analysis of the adoption of third party in the logistics operations 365
Figure 6. What caused him to outsource logistic activities in his company.
Source. IBM SPSS Statistics Data Editor
The most frequent reason corresponds to the possible cost reduction with 39.4%.
For this reason, it is necessary to include in the instrument, the identification of the
impact of the costs of the different logistics activities outsourced by the companies
in Neiva. Table 6 gives us this characterization.
Table 6. Contingency logistic activities contracted with the logistics cost ranges
PLEASE INDICATE WHICH OF
THESE LOGISTIC ACTIVITIES YOU
CONTRACT OR THIRD PARTY.
WHERE OF THE FOLLOWING RANGES IS THE LOGISTICAL
COST IN YOUR COMPANY ON SALES
2% al
3%
3,1% al
6%
6,1%
al 9%
9,1% al
13%
13,1% al
16%
Más del
16,1%
Transport and distribution 30,8% 53,8% 20,3% 2,6% 2,6%
Purchasing and handling of suppliers 11,1% 33,3% 11,1% 11,1% 33,3%
Inventory management 50% 25% 25%
Storage 16% 72% 8% 4%
Comercio exterior 100%
Additional services (marking, labeling,
packaging, assembly)
25% 25% 50%
Others 25% 25% 25% 25%
Source. IBM SPSS Statistics Data Editor
4. Conclusions
The logistics within the organizations has become one of the main axes to be able
to guarantee the attainment of the goals in the organizations regarding the level of
16,0%
39,4%
11,7%
4,3%7,4%
20,2%
1,1%
05
10152025303540
Dedicate toyour main
activity
Possiblecost
reduction
Riskreduction
Greaterspeed toadapt tomarketchanges
Stockreduction
Improve theservice
Others
366 Andrés Mauricio Navarrete Ramos et al.
sales of the products or services rendered. Outsourcing this type of activity has been
established as a worldwide practice among companies that want to reduce costs and
improve performance, ensuring that the cost-benefit ratio will be in favor of the
organization. In Europe, the United States, this practice has become widespread and
it is common to outsource activities such as transportation and distribution,
purchasing and handling of suppliers, storage.
At the level of South America, this practice is still under development, with
culture and customs in the form of doing business one of the main barriers to
outsourcing these operations with total peace of mind.
In Neiva, capital city of the Department of Huila in Colombia, a city located in a
low average position in the national competitiveness indicator, outsourcing is an
uncommon practice. However, thanks to the presence of specialized logistics
operators in the country, it has been gaining ground by facilitating outsourcing.
Only a little more than half of a sample of 100 companies from different economic
sectors in the city, have outsourced logistics activities. The main motivation lies in
the reduction of costs, but it was evidenced that there is no specialized staff
dedicated solely to logistics activities within the organization to control the
performance of the third party. To a large extent, the administrative manager of the
organizations, being aware of the cost control of the operation, is the one in charge
of the logistic activities, but has weaknesses against criteria to evaluate the
management of the operators according to their own indicators of the performance
of the supply chain. The other group of companies that do not have outsourced
logistics activities, indicates that the cost generated by the third party is greater than
that generated by the operation from within the organization, and this is
proportional to the size of the organization and by culture, it is not has peace of
mind by providing essential information about the organization to a third party.
The logistics operators have presented a good performance in general, which has
facilitated the incursion in the outsourcing of more companies motivated by the
reduction of costs in their operations. However, if companies do not incorporate
strategic management into their operations, the benefit of outsourcing logistics
operations will not be seen as support for management.
References
[1] N. Celanovic, D. Boroyevich, A fast space-vector modulation algorithm for
multilevel three-phase converters, IEEE Transactions on Industry Applications, 37
(2001), no. 2, 637-641. https://doi.org/10.1109/28.913731
[2] Ruthber Rodriguez Serrezuela, Miguel Ángel Tovar Cardozo, Denicce Licht
Ardila and Carlos Andrés Cuellar Perdomo, A Consistent Methodology for the
Analysis of the adoption of third party in the logistics operations 367
Development of Inverse and Direct Kinematics of Robust Industrial Robots,
Journal of Engineering and Applied Sciences, 13 (2018), no 1, 293-301.
[3] O. Tozanli, G. M. Duman, E. Kongar, S. M. Gupta, Environmentally Concerned
Logistics Operations in Fuzzy Environment: A Literature Survey, Logistics, 1
(2017), no. 1, 4. https://doi.org/10.3390/logistics1010004
[4] R. R. Serrezuela, A. F. Chavarro, M. A. Cardozo, A. G. R. Caicedo, C. A.
Cabrera, Audio signals processing with digital filters implementation using
MyDSP, Journal of Engineering and Applied Sciences, 12 (2017), no. 16, 4848-
4853.
[5] E. Ilie-Zudor, Z. Kemény, A. Pfeiffer, L. Monostori, Decision support solutions
for factory and network logistics operations, International Journal of Computer
Integrated Manufacturing, 30 (2017), no. 1, 63-73.
https://doi.org/10.1080/0951192x.2016.1145801
[6] J. J. G. Montiel, R. R. Serrezuela, E. A. Aranda, Applied mathematics and
demonstrations to the theory of optimal filters, Global Journal of Pure and Applied
Mathematics, 13 (2017), no. 2, 475-492.
[7] A. G. Greenwood, K. Kluska, P. Pawlewski, A multi-level framework for
simulating milk-run, in-plant logistics operations, International Conference on
Practical Applications of Agents and Multi-Agent Systems, Springer, Cham. 2017,
209-220. https://doi.org/10.1007/978-3-319-60285-1_18
[8] R. R. Serrezuela, M. A. T. Cardozo, A. F. C. Chavarro, Design and
implementation of a PID fuzzy control for the speed of a DC motor, Journal of
Engineering and Applied Sciences, 12 (2017), no. 8, 2655-2660.
[9] Z. He, P. Chen, H. Liu, Z. Guo, Performance measurement system and strategies
for developing low-carbon logistics: A case study in China, Journal of Cleaner
Production, 156 (2017), 395-405. https://doi.org/10.1016/j.jclepro.2017.04.071
[10] R. R. Serrezuela, A. F. C. Chavarro, M. A. T. Cardozo, A. L. Toquica, L. F.
O. Martinez, Kinematic modelling of a robotic arm manipulator using Matlab,
Journal of Engineering and Applied Sciences, 12 (2017), no. 7, 2037-2045.
[11] B. Andres, R. Sanchis, J. Lamothe, L. Saari, F. Hauser, Integrated production-
distribution planning optimization models: A review in collaborative networks
context, International Journal of Production Management and Engineering, 5
(2017), 31. https://doi.org/10.4995/ijpme.2017.6807
[12] J. B. Ramirez Zarta and R. R. Serrezuela, Solution of System of Differential
Equations Deformed with K-Exponential Matrix, In Advanced Mathematics Theory
368 Andrés Mauricio Navarrete Ramos et al.
and Applications, Taekyun Kim EdIndia, Research India Publications, 2017, 189-
204.
[13] D. B. Grant, A. Trautrims, C. Y. Wong, A. Trautrims, Sustainable Logistics
and Supply Chain Management: Principles and Practices for Sustainable
Operations and Management, Kogan Page Publishers, 2017.
[14] V. Azhmyakov, R.R. Serrezuela, L.G. Trujillo, Approximations based optimal
control design for a class of switched dynamic systems, IECON 2014-40th Annual
Conference of the IEEE Industrial Electronics Society, IEEE 2014, 90-95.
https://doi.org/10.1109/iecon.2014.7048482
[15] F. X. Delmonteil, M. È. Rancourt, The role of satellite technologies in relief
logistics, Journal of Humanitarian Logistics and Supply Chain Management, 7
(2017), no. 1, 57-78. https://doi.org/10.1108/jhlscm-07-2016-0031
[16] R. R. Serrezuela, O. F. Villar, J. R. Zarta, Y. H. Cuenca, The K-Exponential
Matrix to solve systems of differential equations deformed, Global Journal of Pure
and Applied Mathematics, 12 (2016), no. 3, 1921-1945.
[17] V. Ravi, R. Shankar, An ISM-based approach analyzing interactions among
variables of reverse logistics in automobile industries, Journal of Modelling in
Management, 12 (2017), no. 1, 36-52. https://doi.org/10.1108/jm2-08-2014-0066
[18] R. Rodríguez Serrezuela, L. A. Carvajal Pinilla, Ecological determinants of
forest to the abundance of Lutzomyia longiflocosa in Tello, Colombia,
International Journal of Ecology, 2015 (2015), 1-7.
https://doi.org/10.1155/2015/580718
[19] K. Kant, A. Pal, Internet of perishable logistics, IEEE Internet Computing, 21
(2017), no. 1, 22-31. https://doi.org/10.1109/mic.2017.19
[20] R. R. Serrezuela, N. C. Sánchez, J. B. R. Zarta, D. L.Ardila, A. L. P. Salazar,
Case Study of Energy Management Model in the Threshing System for the
Production of White Rice, International Journal of Applied Engineering Research,
12 (2017), no. 19, 8245-8251.
[22] J. Sarkis, Greener Manufacturing and Operations, From Design to Delivery
and Back, Routledge, 2017. https://doi.org/10.4324/9781351282246
[23] L. A. C. Pinilla, R. R. Serrezuela, J. David, S. Díaz, M. F. Martínez, L. C. L.
Benavides, Natural Reserves of Civil Society as Strategic Ecosystems: Case Study
Meremberg, International Journal of Applied Environmental Sciences, 12 (2017),
no. 6, 1203-1213.
Analysis of the adoption of third party in the logistics operations 369
[24] M. Swink, S. A. Melnyk, J. L. Hartley, M. B. Cooper, Managing Operations
Across the Supply Chain, McGraw-Hill Education, 2017.
[25] L. C. L. Benavides, L. A. C. Pinilla, R. R. Serrezuela, W. F. R. Serrezuela,
Extraction in Laboratory of Heavy Metals Through Rhizofiltration using the Plant
Zea Mays (maize), International Journal of Applied Environmental Sciences, 13
(2018), no. 1, 9-26.
[26] D. Licht Ardila, J. B. Ramírez Zarta, A. M. Navarrete Ramos and A. L. Paque
Salazar, Degree of Outsourcing of the Logistics Operations of a Group of
Companies in the City of Neiva, Advanced Engineering Research and Applications,
In B. S. Ajaykumar and D. Sarkar, eds., Nueva Deli, India, Research India
Publication, 2018, 466-476.
[27] E. García Perdomo, M. A. Tovar Cardozo, C. A. Cuellar Perdomo and R. R.
Serrezuela, A Review of the User Based Web Design: Usability and Information
Architecture, International Journal of Applied Engineering Research, 12 (2017),
no. 21, 11685-11690.
[28] A. M. Navarrete Ramos, J. L. Aroca Trujillo, R. Rodríguez Serrezuela and J.
B. Ramírez Zarta, A Review of the Hotel Sector in the City of Neiva and the
Improvement of its Competitiveness through Quality Management Systems,
Advanced Engineering Research and Applications, B. S. Ajaykumar and D. Sarkar
eds., Nueva Deli, India, Research India Publication, 2018, 439-452.
[29] N. C. Sánchez, R. R. Serrezuela, A. M. N. Ramos, J. L. A. Trujillo, Real
Process Characteristic Capacity Weight in the Product 500 Grams in a Rice Mill,
International Journal of Applied Engineering Research, 12 (2017), no. 21, 11588-
11597.
[30] V. N. S. A. Kumar, V. Kumar, M. Brady, J. A. Garza-Reyes, M. Simpson,
Resolving forward-reverse logistics multi-period model using evolutionary
algorithms, International Journal of Production Economics, 183 (2017), 458-469.
https://doi.org/10.1016/j.ijpe.2016.04.026
[31] R. R. Serrezuela, M. Á. T. Cardozo, D. L. Ardila, C. A. C. Perdomo, Design
of a gas sensor based on the concept of digital interconnection IoT for the
emergency broadcast system, Journal of Engineering and Applied Sciences, 12
(2017), no. 22, 6352-6356.
[32] M. Vanderroost, P. Ragaert, J. Verwaeren, B. De Meulenaer, B. De Baets, F.
Devlieghere, The digitization of a food package’s life cycle: Existing and emerging
computer systems in the logistics and post-logistics phase, Computers in Industry,
87 (2017), 15-30. https://doi.org/10.1016/j.compind.2017.01.004
370 Andrés Mauricio Navarrete Ramos et al.
[33] J. L. Aroca Trujillo, A. Pérez-Ruiz, R. Rodriguez Serrezuela, Generation and
Control of Basic Geometric Trajectories for a Robot Manipulator Using
CompactRIO®, Journal of Robotics, 2017 (2017), 1-11.
https://doi.org/10.1155/2017/7508787
Received: February 16, 2018; Published: March 12, 2018