Álvarez Sánchez, Ana
Thumbnail Image
Preferred name
Álvarez Sánchez, Ana
Main Affiliation
Quito
Email
anaalvare@uti.edu.ec
ORCID
Scopus Author ID
58984098500

Research Output

Filters

12
Reset filters

Settings
Now showing 1 - 10 of 12
No Thumbnail Available
Publication

Strategies to Produce Environmentally Friendly Cleaning Supplies for Tourism in the Galapagos Archipelago

2024 , Álvarez Sánchez, Ana , Suárez del Villar, Alexis

The implementation of disinfectants in the Galapagos Islands requires a meticulous and thoughtful approach, given the ecological sensitivity of this protected area. Disinfectants must be biodegradable and non-toxic to preserve the unique terrestrial and marine biodiversity of the islands. Their effectiveness against a variety of pathogens is critical to protect public health, but this must not compromise the integrity of aquatic and terrestrial ecosystems. Adherence to strict environmental regulations and the provision of clear information on their use are imperative to ensure that their application is both safe and responsible. Maintaining this delicate balance between the protection of human health and the conservation of the unique ecosystem of the Galapagos Islands is crucial, and the disinfectants used play a key role in this effort. The microenterprise under study is dedicated to the manufacture of cleaning products such as disinfectants, liquid soap, and fabric softener for the hotel sector on Santa Cruz Island, Galapagos Archipelago; 8 years ago, due to external factors on the island, the company presented an increase in sales, resulting in inefficiency in the manufacturing process due to lack of capacity, the physical space where it processes was not designed for this business as it is located within the property of the owner of the company, for this reason the 30 m2 that are currently used do not have inventory areas of raw materials, material in process and finished products, which can meet the current demand for production. By using manual processes for the manufacture of the products, the transformation time varies between 1 and 2 days for each reference, which delays delivery times, creating failures that contribute to the non-fulfillment of orders. By diagnosing the mixing and packaging operations that directly influence the failure to deliver products to the final customer, an improvement proposal is made to take advantage of the capacity of the areas [1], reduce waste and minimize the ergonomic risks of the current production line to increase its productivity and satisfy the demand of its customers

View
No Thumbnail Available
Publication

AN ASSESSMENT OF CUBAN FOOD SECURITY BASED ON THE AGRICULTURAL AREA UNDER CULTIVATION AND AGRICULTURAL YIELDS

2022 , Cosío, E.C. , Suárez del Villar, Alexis , Álvarez Sánchez, Ana , Cruz, I.A.

The research was carried out with official data published in the country, collected from official information sources from 2007 to 2019. In the variables analyzed, the following were considered as having high explanatory power: land distribution, total area, agricultural area, cultivated area, yields of selected crops. For the calculation of the nutritional needs of the population, the nutritional recommendations for the Cuban population were taken into account and the productions were grouped ac-cording to the classification established for the food groups in Cuba. The country’s agricultural area is 6400.18 Mha in 2019, which its use decreases for all the items studied, except for banana, bell pepper, bean, lemon, guava and pump fruit. In addition, yields of the main crops are low, as is the productivity of the livestock sector analyzed. To contribute to the achieve-ment of food security for the Cuban population in correspondence with the standards of the National Institute of Nutrition, an area with technological package (irrigation and optimal yields) of 3942577.82 ha is needed, existing agricultural area in the country; and without technological package (without irrigation), an area of 6424285.82 ha, which are insufficient in 23485 ha. © 2022, University of Cienfuegos, Carlos Rafael Rodriguez. All rights reserved.

View
No Thumbnail Available
Publication

Optimizing the Laboratory Supply Chain with Clarke and Wright Fuzzy Algorithm

2024 , Suárez del Villar, Alexis , Álvarez Sánchez, Ana

The implementation of an optimization strategy in a company dedicated to the sale of laboratory equipment and reagents is detailed. Initially, two routes were established with the objective of significantly reducing delivery times and related costs. These routes were designed using linear programming methods, considering elements such as vehicle carrying capacity, time constraints and customer requirements. After defining the routes, they were incorporated into the company’s operations, adjusting the delivery schedule, and allocating the appropriate resources for the execution of the new logistics plan. In addition, a system was implemented to regularly monitor and control the results, allowing necessary adjustments to be made. The implementation of these measures proved successful, reducing delivery time by 321 min, equivalent to 5.35 h, and saving USD 51.54 per kilometer. This led to a substantial improvement in the company’s logistical efficiency and customer satisfaction. It is recommended to maintain weekly monitoring and control of the implementation, evaluating the results periodically. It is also advisable to regularly check the vehicles used in transportation to ensure their optimal condition and guarantee efficiency and safety in deliveries. The possibility of applying this optimization proposal in other companies in the same sector is raised, given that the positive results obtained could be replicable in similar organizations. In conclusion, the application of this optimization proposal in the laboratory material and reagents company has proven to be extremely effective, reducing delivery times and associated costs, while improving operational efficiency and increasing customer satisfaction.

View
No Thumbnail Available
Publication

Software and Methods Applied in the Standardization of the Grinding Process for Automobile Engines as a Business Solution

2024 , Álvarez Sánchez, Ana , Suárez del Villar, Alexis

When the research addresses the problem of empirical engine rectification based exclusively on the experience of the workers, which results in nonconformities on the part of the customers due to delays in delivery times. To solve this, it was proposed to standardize the operation cycles using the Stop and Observe Method. Through techniques such as direct observation, time studies and process diagrams, the grinding process was analyzed in detail. The data collected were compared with the Crystal Ball program, demonstrating consistency with 95% confidence. It was determined that the time required to rectify an engine was 27.23 days, with supplements affecting 4.8 h of an 8-h workday. The investigation proposed improvements, including the implementation of a hydraulic scissor table to reduce the physical strain on the operators and the introduction of hearing protection. This resulted in a noise reduction from 30 dB to 15 dB, exceeding the regulations of Executive Decree 2393. With these measures, the total grinding time was reduced to 26 days, representing an efficiency gain of 639.15 min or 10.65 h. This standardization not only improves the efficiency of the process, but also allows for more accurate communication with the customer on delivery times, increasing customer satisfaction.

View
No Thumbnail Available
Publication

Strategies to Produce Environmentally Friendly Cleaning Supplies for Tourism in the Galapagos Archipelago

2024 , Álvarez Sánchez, Ana , Suárez del Villar, Alexis

The implementation of disinfectants in the Galapagos Islands requires a meticulous and thoughtful approach, given the ecological sensitivity of this protected area. Disinfectants must be biodegradable and non-toxic to preserve the unique terrestrial and marine biodiversity of the islands. Their effectiveness against a variety of pathogens is critical to protect public health, but this must not compromise the integrity of aquatic and terrestrial ecosystems. Adherence to strict environmental regulations and the provision of clear information on their use are imperative to ensure that their application is both safe and responsible. Maintaining this delicate balance between the protection of human health and the conservation of the unique ecosystem of the Galapagos Islands is crucial, and the disinfectants used play a key role in this effort. The microenterprise under study is dedicated to the manufacture of cleaning products such as disinfectants, liquid soap, and fabric softener for the hotel sector on Santa Cruz Island, Galapagos Archipelago; 8 years ago, due to external factors on the island, the company presented an increase in sales, resulting in inefficiency in the manufacturing process due to lack of capacity, the physical space where it processes was not designed for this business as it is located within the property of the owner of the company, for this reason the 30 m2 that are currently used do not have inventory areas of raw materials, material in process and finished products, which can meet the current demand for production. By using manual processes for the manufacture of the products, the transformation time varies between 1 and 2 days for each reference, which delays delivery times, creating failures that contribute to the non-fulfillment of orders. By diagnosing the mixing and packaging operations that directly influence the failure to deliver products to the final customer, an improvement proposal is made to take advantage of the capacity of the areas [1], reduce waste and minimize the ergonomic risks of the current production line to increase its productivity and satisfy the demand of its customers.

View
No Thumbnail Available
Publication

The Climate in Different Tourist Locations Affecting Children with Bronchial Asthma

2024 , Álvarez Sánchez, Ana , Córdova-Luspa L.E. , Pachacama-Freire M.A.

Tourist destinations are chosen by travelers according to the characteristic climate of each place. These climatic changes, allergen variations, and air pollution contribute to trigger allergens that affect bronchial asthma symptoms. In addition, the increase in temperature and carbon dioxide levels in the atmosphere could lead to a more pronounced production of pollen, which leads to the spread of allergens, increasing sensitization and aggravating allergic reactions in children, especially in those who travel to tourist places such as mountains, beaches, hills, moors, among others. Due to the increasing emission of CO2 and other greenhouse gases, both in developed and developing countries, the negative effects on respiratory health, especially asthma and allergies, are becoming increasingly important, especially in young children and the elderly. Both global climate change and air pollution have a detrimental impact on respiratory health, especially in relation to asthma and various allergic diseases. Importantly, increased emissions of CO2 and various greenhouse gases contribute to climate change, resulting in more extreme and damaging weather events, such as periods of extreme heat, prolonged droughts, severe and devastating thunderstorms, floods, and powerful tropical storms. All these extreme weather events have negative consequences for people with asthma. As a result of the research, it could be corroborated that droughts cause an increase in the concentration of various allergens in the environment, such as pollen and outdoor fungi, which can cause allergic symptoms in sensitive people. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

View
No Thumbnail Available
Publication

Exploring Challenges and Strategies for Measuring the Social Impact of Entrepreneurship in Ecuador

2025 , Álvarez Sánchez, Ana , Suárez del Villar, Alexis

Research conducted in Ecuador reveals that while 27% of entrepreneurs surveyed identified lack of liquidity as their main challenge, another 23% highlighted low sales as a significant obstacle, and 19% pointed to insecurity. These challenges vary markedly between regions such as Pichincha, Guayas, Manabí and Azuay, which complicates the standardization of methods for measuring the social impact of ventures. Through qualitative interviews and quantitative analysis of INEC data, it was observed that less than 40% of entrepreneurs in Pichincha are trained in impact assessment techniques, which contrasts with the need for training and tools adapted to local contexts. This lack of preparation underlines the urgency of developing customized methodologies that allow entrepreneurs and policy makers to better understand and support the sustainable growth of entrepreneurship in each province. The need for adaptation and customization of measurement tools is evident, particularly in provinces where economic and cultural characteristics vary significantly, e.g. in Azuay, where the artisanal sector is preponderant, it would be beneficial to implement measurement systems that consider cultural and community impacts in addition to economic ones, and collaboration between academia, government and non-governmental organizations can provide vital support in the creation of these methodologies, ensuring that they are robust and relevant. By fostering a stronger environment for social impact measurement, supportive policies could be improved, thus contributing to more equitable economic and social development in Ecuador. This study suggests a clear path towards creating a more effective framework for assessing and maximizing the social impact of ventures, opening up opportunities for future research that delves deeper into the interaction between public policies and entrepreneurial practices in different regional settings.

View
No Thumbnail Available
Publication

Optimizing the Laboratory Supply Chain with Clarke and Wright Fuzzy Algorithm

2024 , Suárez del Villar, Alexis , Álvarez Sánchez, Ana

The implementation of an optimization strategy in a company dedicated to the sale of laboratory equipment and reagents is detailed. Initially, two routes were established with the objective of significantly reducing delivery times and related costs. These routes were designed using linear programming methods, considering elements such as vehicle carrying capacity, time constraints and customer requirements. After defining the routes, they were incorporated into the company’s operations, adjusting the delivery schedule, and allocating the appropriate resources for the execution of the new logistics plan. In addition, a system was implemented to regularly monitor and control the results, allowing necessary adjustments to be made. The implementation of these measures proved successful, reducing delivery time by 321 min, equivalent to 5.35 h, and saving USD 51.54 per kilometer. This led to a substantial improvement in the company’s logistical efficiency and customer satisfaction. It is recommended to maintain weekly monitoring and control of the implementation, evaluating the results periodically. It is also advisable to regularly check the vehicles used in transportation to ensure their optimal condition and guarantee efficiency and safety in deliveries. The possibility of applying this optimization proposal in other companies in the same sector is raised, given that the positive results obtained could be replicable in similar organizations. In conclusion, the application of this optimization proposal in the laboratory material and reagents company has proven to be extremely effective, reducing delivery times and associated costs, while improving operational efficiency and increasing customer satisfaction.

View
No Thumbnail Available
Publication

Design of a Semi-automatic Dough Mixer for the Prevention of Occupational Diseases in Marzipan Artisans

2025 , Álvarez Sánchez, Ana , Suárez del Villar, Alexis

Older people, due to the natural aging process, are particularly vulnerable to occupational tasks, as they experience a gradual loss of physical capacities, which increases the incidence of occupational diseases in this population. Despite these challenges, their experience and skills acquired over the years make them a valuable resource for society. This study focuses on designing a semi-automatic dough sheeter for the dough making process used by the artisans of Calderón in Ecuador, who currently carry out this work manually, this practice being an integral part of the local culture. The research began with a detailed analysis of modern manual molders, collecting data on shear force, bending moment, and tensile stress, which are fundamental to the design. Subsequently, a simulation of the design was carried out using SolidWorks software. The result was the creation of a prototype kneading machine equipped with AISI 1050 steel rollers, processed by HR. This device was able to significantly reduce repetitive hand movements, reducing the effort during the kneading process by 25,000 TMU, which translates into improved health and work performance for the artisans. The implementation of this technology reduced the risk of occupational diseases such as bursitis, which is caused by inflammation of the bursae in the joints, and carpal tunnel syndrome, which affects the functionality of the hands. In addition to the physical benefits, this project also addresses the psychological aspect, as many older craftsmen and women feel demotivated due to their diminished ability to perform tasks they used to do in their youth. The research aims to provide a better quality of life for these workers, protecting both their physical health and emotional well-being. In short, the semi-automatic laminator not only improves the working conditions of the Calderon artisans but also preserves and promotes an important cultural tradition, ensuring that these valuable knowledge and skills can continue to be practiced in a safe and sustainable manner.

View
No Thumbnail Available
Publication

Computerized Planning of Surface Ratios in a Milk Extraction Plant

2023 , Suárez del Villar, Alexis , Álvarez Sánchez, Ana , Galarza Tipantuña A.R.

The research is carried out on the milk extraction process of a farm that has been showing a decrease in monthly income, negatively affecting profits, the economic deficit is affected by the milk sales price of 0.32 dollars per liter being lower than that of competitors, the lack of real historical data on the amount of milk extracted, losing control of expenses, and that the plant is not suitable for the process of extraction and storage of milk, causing the milk to be sold at times at 0.29 dollars per liter. There are multinationals that have submitted proposals for the purchase of the milk product; to close these contracts they ask for compliance with the technical standard: Guide of good practices for milk production, technical resolution No. 0217 fifth revision. 0217 fifth revision, was applied as a solution the systematic planning of the plant layout (SLP) using a methodology based on the application of the Relationship Diagram in CORELAP software, and the Method of the Elimination of the double sense of movements, selecting the second alternative, in addition, A mechanical milk extraction equipment is implemented with a milking capacity of 50 cows in 10 500 s, this is achieved by milking two cows at the same rhythm, the production time is reduced by 75% going from 55827 s to 13950 s, with this time 127 Lt are increased in the daily extraction going from 1373 Lt to 1500 Lt, and the personnel requirement is reduced from 5 to 3 operators. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.

View