bluuebunny/crossref_metadata_2025 huggingface dataset:
Spatial decision support syste for concentrate feed distribution in animal feeding
Authors: Amiama C. , Carpente L. , Loza J. R.
Published: April 2024

The management of the distribution of concentrates is a process that requires a great organizational effort, given the large number of elements of the supply chain involved. In this work a case study is related, in which a spatial decision aid tool for the management of concentrate distribution logistics has been developed and implemented. The objective when talking about effective distribution management should not be relegated only to a search in the reduction of km traveled by vehicles, but should be considered from a more ambitious perspective, pursuing a better organization of production and a leveling of the activity. Consequently, the logistics of distribution will not only involve transport vehicles, but will require the involvement of the production, ordering and transport areas, as evidenced in this work. Route management must be integrated with an adequate consumption forecasting capacity, which allows orders to be served before the date on which the safety stock is reached, considering also the production capacity of the manufacturing plant. To evaluate the viability of the tool designed, the results relative to km traveled and tons distributed prior to its implementation were compared with those obtained afterwards. The results obtained reflect a significant saving derived from the use of the developed tools, although these savings have come more from a better management of the orders than from an improvement in the management of vehicle routes. Consequently, additional efforts will be necessary in the route management management tool in order to reduce the participation of the manager in the re-elaboration of the routes proposed by the spatial decision support system.
Pressurized liquid extraction of phenolic compounds from acai seeds (Euterpe precatoria Mart.)
Authors: Farías A. M. , Lamarão C. V. , Veiga V. F. , Meireles M. A. A.
Published: April 2024

In the Amazon region there are two predominant species: Euterpe oleracea Mart. and Euterpe precatoria Mart, these are palm trees whose fruit is known as açai. However, unlike E. precatoria, E. oleracea has received special attention for its incomparable taste, energy properties and for being an important source of antioxidants. Recently, studies have been conducted on E. precatoria demonstrate its bioactive superior to that reported for E. oleracea, however, these studies are rare and focus only on the pulp leaving aside açai seed. On the other hand, businessmen have shown great interest on the obtaining the responsible compounds for their antioxidant activity such as phenolics, for its incorporation in cosmetics, pharmaceutical and food products. However, the use of large amounts of mostly toxic solvents, long extraction times, low extract yield, low antioxidants-concentration of the extracts and presence of solvent in the final product are disadvantages of the current extraction processes that reduce the possibility of having high quality açai extracts in the market. In this paper, the obtaining of phenolic compounds and antioxidants from açai seeds by pressurized liquid extraction (PLE) was studied. Extractions were made by using ethanol as the solvent extraction at flow rate of 2.0 × 10-5 kg of ethanol/s, temperatures of 313 to 333 K, pressures of 2 to 6 MPa with and solvent to feed mass ratio (S/F) of 2.3. Total phenolics and antioxidant activity of açai extracts were evaluated while the extraction yield was determined to evaluate the PLE performance. Richextracts in phenolic compounds with antioxidant activity from açai (E. precatoria) seeds were obtained by PLE. The highest phenolic content in extracts was 33 % and it was obtained at 313 K/ 4 MPa while the highest phenolic extraction yields were quickly produced at 4 MPa and low temperatures (313 to 333 K) using only small amounts of a GRAS.
Internet of things (IOT) in agricultural science, propouse of a standar solution for applications at Colombia
Authors: Suárez C. , Villarreal M. , Castelblanco L.
Published: April 2024

The wireless sensor networks (WSN) are a technology that has been underway for several years with high potential in the Internet of Things (IoT) applied to agriculture. One of the main challenges is the construction of these systems. This article main objective is to show to design and implementation of full technological system that will aim to strengthen precision agriculture in Colombia, through the construction of a wireless sensor node with communication modules, capable of measuring the variability of the environment and the soil and how connect this devices to cloud computing, a system proposed motivated on the creation of an open source model of precision agriculture, based on the extraction and gathering of environmental data, from remote sensors. Furthermore, the paper explains the overall applications propose in the world and the current technological developments in the agricultural sector in Colombia, emphases on researching on the architecture and key technology of Internet of Things (IoT). Finally, the paper demonstrates the development of a technology-based project that offers an efficient solution and contributes to the welfare of a specific target population, the Agro of Colombia.
Unmanned aerial system for air quality and atmospheric pollutants in the lower troposphere
Authors: Jiménez P. L. , Cerpa R.M.
Published: April 2024

In Colombia there are populated areas near cities that show accelerated industrial growth. The demographic distribution divides the residential zones from zones with the presence of industries. However, there are no studies on the impact of emissions on the population. It is necessary to know the behavior of anthropogenic emissions when interacting with air currents. For this reason, AeroTech Research Group of the University of San Buenaventura is developing a two-stage project for pollution research around industrial facilities. First stage determines the capabilities of a platform to fulfill the mission in high altitude and high temperature conditions. This article describes the integration of the automatic control system, the simulation and flights of the AQUILA aircraft. The flights were developed to configure the gains of the PID controllers and thus validate the performance using a pixhawk control system. The results are used to validate stability and control calculations and test the equipment developed by the University of San Buenaventura Medellin and the University of Medellin in the second stage. This research showed that the use of aircraft is essential to support government entities in the evaluation and control of air quality by flying in an air column with a diameter of 300 m and a maximum height of 1km.
Edible films as an alternative to reduce postharvest losses on fruits
Authors: Blanco Lizarazo Carla María , Galvis V. Jesús Antonio , Farias Campomanes Ángela María
Published: April 2024

Currently the demand of consumers for healthy, nutritive and natural food is high. This panorama has increased research about the development of edible films and coatings for vegetables and fruits as an alternative to fulfill these requirements. Edible films and coatings are applied for extend shelf life and allowed enhancing the safety of the product because are a good barrier against vapor, oxygen, and compounds related to taste, color and aroma. The application of different components like polysaccharides, proteins, lipids, additives and other active compounds in different kinds of edible films has been efficient for fruits preservation because controlled gas transfer, microbial growth, and maintain quality characteristics for consumers as fresh appearance, firmness, brightness, color, and cost of fresh food.
Design of a control system for a housing water supply tank and coffee washing process at the Las Minas farm, Oiba (Santander)
Authors: Sandoval A. , Ruiz C. , Quiroga F. A. , Chaves G. C.
Published: April 2024

This article presents the design of a control system for a water tank where it will be filtered and distributed automatically for the supply of drinking water to a home and for washing the coffee on the Las Minas farm. The design was based on the methodology developed by Karl T. Ulrich, which is based on six phases: recognition of the need, identification of the problem, information gathering, conceptualization, evaluation and communication of the design. A technical visit was made to the tank located in the municipality of Oiba, Santander, to determine its status and the general arrangement of the different components based on the best and most economical water filtration method, considering the requirements established by the final user. Likewise, the responses obtained from the PID controller, based on the second method of Zigler Nichols, providing the system with speed and stability with its implementation.
Public services as an indicator to measure poverty in Latin America and the Caribbean
Authors: Monroy Pedraza Helber Mauricio
Published: April 2024

The present is an article of theoretical methodological review, which proposes that within the existing routines and proposals by international organizations, such as the Inter-American Development Bank and the United Nations Development Program to measure the levels of poverty in emerging countries, grant greater participation to coverage in public services, as a relevant indicator within all indicators to measure the conditions of the poorest communities. This proposal was born from the fact that, in the XXI century, there are still regions of Latin America and the Caribbean, where people do not have basic public services, a fact that significantly affects the quality of life of its inhabitants, generating serious damage in health, such as respiratory diseases, gastrointestinal diseases, viruses and others. Obviously, within all the existing indicators, public services are contemplated but in a smaller proportion, giving more room for income and other variables. By applying the information collection instrument reflected in a survey, it can be shown that one hundred percent of the respondents believe that there are still high levels of poverty in Latin America and the Caribbean, and thirty percent assume that it is possible to assume the absence of public services as a valid indicator of poverty, while, to phenomena such as corruption, fifty-two percent of the blame is attributed to the records, and eighty-nine percent of the respondents affirmed that if a the country presents economic growth, its levels of poverty must decrease.
Propuesta universitaria: “5E la U verde del posconflicto”
Authors: Valbuena Leguízamo José Alfonso
Published: April 2024

This text is the product of some reflections that have occurred during the execution of the research project historical analysis of agrarian law in Colombia, in articulation with the Colombian reality of recent years, determined, among other facts, by the peace process followed with the FARC guerrillas. This article involves the commitment that a higher education institution, such as the Fundación Universitaria Agraria de Colombia, could assume in the Colombian post-conflict scenario.
An Inventory management model at the postharvest area of an alstroemeria production line at C.I. Carrizoza Navas & Ltd. Co.
Authors: Polo R. Andrés , Clavijo B. Nicolás , Vega L. Sebastián
Published: April 2024

Today the companies’ flexibility in conditioning their policies to the needs of the market ceased being an academic novelty to become an everyday practice of organizations, for this reason several tools are designed with which the company is able to address this situation. For C. I. Carrizosa Navas, a floriculture sector company, the constant change in demand in some months of the year makes it difficult to manage suitable policies. The inventory system modeling represents the performing policies for days in which you work one shift to meet the demand of tobacco flowers a day, as its validation will be useful to make decisions when demand is changing in so-called seasons. It models developments of Work in Process (WIP), finished goods inventory (INV) and inventory of products pending (PEND) and will provide in every moment of the planning period information on the status of these. Eventhough this type of systems have been studied and highly researched, they constantly perplex those who have the difficult task of changing the policies to fit reality.
Socio-legal problem of ecotourism in Colombia: perspective in Sabana Occidente Cundinamarca geographical region
Authors: Gómez Numa Vanesa Patricia
Published: April 2024

Ecotourism has been seen globally as a phenomenon of economic activity and leisure that generates an alternative way with minimal environmental impact with respect to universal tourism. A reflection is made about the socio-legal problematic of the ecotourism activity in Colombia, showing a panorama of the conditions of the services and activities offered and reflections of this situation in Sabana Occidente province of Cundinamarca. In this way, an ecotourism perspective that complies with the regulations that govern it from the social, economic and environmental aspects could be treated, presenting that this set of areas in an integral manner are essential content in terms of sustainability. It is widely seen that security, second language management, informality of supply, sustainability, difficulty in accessing tourist sites and transport, publicity and quality in the provision of services are the factors of ecotourism they are immersed in this problem that includes elements based on the need for stability and effectiveness of the sector framed in a sustainable development environment.
Conservation technologies of minimally processed fruits and vegetables
Authors: Casas Forero Nidia
Published: April 2024

Minimally processed products are demanded by a growing market because consumers are looking for value-added products and ready to eat, but their marketing is limited by a short life and rapid deterioration of their components due to damage tissue processing operations, this affect the sensory quality of the final product mainly due to enzymatic, biochemical changes and microbial growth. Consequently, there is a need to find alternatives for the conservation of fresh-cut fruits and vegetables, alowing to reduce to a minimum the changes occurring in plant tissue. Among the alternatives that have been proposed, they are: The application of antimicrobial and antioxidants agents, calcium, edible coatings and packaging under modified atmospheres. Therefore, the aim of this review is to present an overview of available technologies with the potential to be used by the Colombian agricultural industry for the conservation of minimally processed fruits and vegetables, so that you will give added value to our products and access to new markets.
Commitment of renal and cardiovascular systems in canine visceral Leishmaniasis. Conceptual review
Authors: Martínez Padua Pedro Pablo
Published: April 2024

Visceral Leishmaniasis (VL) is a registered zoonoses in various regions from the world, according to estimates by the World Health Organization, the prevalence of different clinical forms of leishmaniasis surpasses 12 million cases. In Colombia the population at risk to 2009 was 10 million, with 62 reported cases of VL (0.5%). The clinical frame in dogs is very similar to human, making the dog an excellent experimental model for the study of the disease. The literature reports the affinity of the agent for the kidneys of mammals affected by VL. Some works describe renal lesions in human and dogs beings undertaken by the disease, meanwhile, there are gaps in the pathophysiology of VL in this system, and the consequences of systemic hypertension on myocardial function, so the literature is extremely scarce to description of disorders from the cardiovascular system. Similarly, there are few studies in Veterinary Medicine on myocardial function of dogs with VL except isolated reports of myocarditis or pericarditis in infected dogs, and a study correlating these systems in canine VL.
Ethyl esters evaluation from used oil and palm oil as a biofuel.
Authors: Sierra S. Mauricio A. , Quiñones Cantor Leonardo , Mejía Terán Adriana
Published: April 2024

Waste vegetable oils and their mixture with RBD palm oil are used to obtain ethylic esters with the purpose of evaluating the influence of treatment of waste vegetable oils, the use of industrial anhydrous ethanol in different molar ratios and the use of KOH and CH3 ONa as catalyst on the yield of reaction. The best results are obtained using a mixture 80:20 of RBD palm oil and waste vegetable oil without treatment, 9:1 molar ratio of ethanol:oil and 0,5% w. CH3 ONa as catalyst to 60 °C. The use of KOH as catalyst provides lower yields of reaction; however their behaviour is less influenced by changes in the quality of the raw materials
Implementation of a network of measuring weather in the Corporación Universitaria Minuto de Dios
Authors: Hernández T. Guillermo , Quintana C. Julián Andrés
Published: April 2024

This research report presents the experience of Corporación Universitaria Minuto de Dios (UNIMINUTO, the head office and the headquarter of Cundinamarca) on designing and implementing a meteorological measurement network. Initially, the meteorological stations were installed in urban environments (some headquarters of the university) and open spaces (farms of the university) in order to monitor variables that allow to know and understand the atmosphere behavior at high temporal resolutions. This article highlights the participation of some Colombian universities in the creation of environmental monitoring networks that contribute to the risk management associated with extreme weather events, as well as to the local and regional meteorological research and the academic and scientific dissemination. It is also analyzed social, academic and investigative impacts generated by the creation of automatic meteorological measurement networks. Furthermore, it is studied how these individual efforts facilitate and contribute to strength agreements with government institutions for environmental management purposes. At the end of this report, it can be found UNIMINUTO’s own experience formulating projects and researches to facilitate students and teachers’ learning process and contribute to strength the institutional research using high-quality and high temporal resolution climatological data.
Diagnóstico de los atractivos turísticos en el municipio de Viotá, región del alto Tequendama, Departamento de Cundinamarca
Authors: Rodríguez González Adriana
Published: April 2024

The aim of this research report is to diagnose and identify potential tourist attractions in the town of Viotá, in the region of Tequendama high, in the department of Cundinamarca, Colombia. The method of direct observation has been applied in order to identify natural tourist routes and project the consolidation of Viotá as a tourist destination. Throughout this study, it could be detected that the diversity of both cultural and landscape scenarios define the practice of tourist activities in two modalities: nature tourism and cultural tourism.
Acceptances of sustainability in the peasant economies
Authors: Torres C. César Beltrán
Published: April 2024

Nowadays, in the XXI century in the context of globalization, mechanization and commodification of the world, rural economies are in force. In this paper, some critical elements are presented to analyze the ecosystemic, cultural, social and economic performance of rural economies, recognizing its importance in safeguarding cultural expressions, in the occupation of labor in food production and the finding of different rationales to the dominant, allowing see a beyond modern economic, scientific and cultural notion of the world. To conduct this work, the concept of rural economies with that of sustainability and specifically with the categories created by the ecological economy, weak and strong sustainability, related to identifying the possibilities and limitations in this complex relationship.
“Green classrooms” as a strategy to mitigate the effects of low air quality in the La Felicidad neighborhoodin Bogotá
Authors: Niño G. Elizabeth Magaly
Published: April 2024

With the purpose of taking advantage of the natural and genuine interest of the children of Preschool Education to investigate, explore, observe and experiment, the problematic low quality in the air in La Felicidad neighborhood was linked the pedagogy of the environment to initiate a process of action-reflection, mediated by the teacher-student-parent relationship to implement mitigation alternatives, making sense of the use of a space that in the institutional context has been called green classrooms.
Evaluation of rural development, social innovation, risks and occupational accidentality Vereda Pueblo Viejo, Guayabal de Síquima, Cundinamarca
Authors: Cruz Páez Fabio Orlando , Méndez Valderrama Yeison Estiven
Published: April 2024

Community research was carried out responding to the needs of a social, economic type of rural society, offering solutions to a place in the community, motivating and organizing so that each of the identified needs with the development of self-diagnoses. The identification and solution of a problem that had been affecting the community was worked between 2017 and 2018 with the people living in the village, after socializing and analyzing them, the community affirmed a very important one that went unnoticed. absence of a first aid kit, since each family can´t have one, it was proposed to have a community kit. The methodology used was the logical framework in three community works I, II and III, in order to interact with the community, diagnose the situation, the problem, propose objectives and indicators that satisfy rural society taking into account the main rural development variables, social innovation and risks of occupational accidents worked in the field with a group of 7 leaders from the town of Pueblo Viejo de Guayabal de Síquima, Cundinamarca.
Approaches to sustainable agrotourism in Sesquile, Cundinamarca (Vereda el Uval)
Authors: Barriga Rodríguez Alba Lorena , Bustos Maldonado José Antonio
Published: April 2024

The rural sector is currently experiencing a situation not very favorable for its inhabitants, since 60% of rural employment is informal, which makes the inhabitants of the sector take the decision to migrate to the cities in search of better opportunities. The decrease in the rural population in the last decade went from 7 million to 5 million, which generates a decrease in the labor force, considerably reducing productivity and taking into account that 70% of the food produced in the country comes from small producers. On the other hand, the increase in Colombian tourism activities generates a high range of opportunities for this sector. This is why an alternative of sustainable development is proposed for the rural sector, in this case the Agrotourism, based on the everyday life of the rural inhabitant, its culture, customs and traditions, in order to provide new experiences for visitors. The El Uval Sector of the municipality of Sesquilé Cundinamarca is taken for the development of this topic, considering itself as a territory with the favorable characteristics around agriculture and livestock, which wish to share, which also has associations focused on the growth and conservation of the territory and support for small producers. This allows to generate agrotouristic plans in the Finca El Pino that has different production lines and is part of the Adaptation to Climate Change in the High Mountain project, so that their owners can provide care and conservation of the environment, hand in hand of the Association of Women of Sesquilé Amuses.
Structure of a logistics chain of coffee producers in Lengupá, Boyacá
Authors: Hernández Ávila Sandra Patricia
Published: April 2024

The inconveniences in the logistics chain, associated with intermediation and with this the low remuneration to the producer originated this research, which aims to characterize the logistics chain of small coffee producers in the province of Lengupá. Methodologically it is based on a descriptive investigation, with an explanatory approach carried out in three moments; In the first, a bibliographic inquiry was carried Keywords out, followed by the processing of the information collected and finally, the analysis of the data. The stages carried out show that the logistics chain of the coffee producers of Lengupá is characterized by having a flow of inadequate supplies and materials, in addition, there is little monitoring of the quality records and in short, the inconveniences in the chain represent losses profits for the coffee grower.
Proposal for environmental guidelines about a religious foundation university since the global compact principles
Authors: Bejarano Colorado Jhohan Felipe , Martínez Delgado Camilo Andrés
Published: April 2024

The University whose foundational principles are based on religiosity contemplates the preservation of the environment from its theoretical principles, in this sense it was pertinent to evaluate the Institutional principles postulated in relation to the contemporary trends established by means of the encyclical “Laudato si”. Similarly, this article focused on analyzing how these converge with University Social Responsibility. As a result of the above, the preservation and care of the environment was found as a point of agreement, understanding this as the reflection of the manifestation of God. On the other hand, an environmental pre-diagnosis of the University was carried out, evaluating the consumption from three edges, energy consumption, water consumption and the generation of waste according to the main interest groups, finding seasonality with respect to the increase in use of them, that is, consumption is concentrated in the case of water in the intermediate months, while light consumption increases at the end of the academic semesters. Finally, through the environmental matrix of the Global Reporting Initiative (GRI), the environmental aspects of the university were analyzed and measurement indicators were proposed in order to guide the University to the principles proposed by the Global Compact, aiming at reducing environmental impacts, generating awareness towards the preservation of the environment and the implementation of new technologies to reduce environmental impact.
Environmental justice in Colombia: a review of the constitutional jurisprudence protecting indigenous peoples
Authors: Ramírez Cuervo Emilio
Published: April 2024

The Colombian State has ratified several international instruments to protect indigenous peoples: the International Convention on the Elimination of All Forms of Racial Discrimination of 1965, the Convention on Indigenous and Tribal Peoples of 1989 (ILO Convention 169), the Declaration of the United Nations on the rights of indigenous peoples in 2007. Additionally, there is a constitutional article on multiethnic and multicultural nation, norms and jurisprudence aimed at environmental protection in the context of Colombian indigenous peoples. In this paper, the main thematic nuclei of environmental justice that derive from the constitutional jurisprudence of indigenous peoples are presented, based on an analysis of sentences issued since 1997 by the Colombian constitutional court.
Transformación digital en los procesos de aprendizaje de la educación superior
Authors: Almache Delgado Verónica Jacqueline , Jiménez Añazco Alexandra María , Calderón González Diana Elizabeth , Vásquez Romero Steward Fernando
Published: April 2024

La educación superior se encuentra inmersa en un proceso de transformación digital sin precedentes. La introducción de tecnologías digitales en las instituciones educativas está modificando los métodos tradicionales de enseñanza y aprendizaje. Esta revisión sistemática, fundamentada en la metodología PRISMA, analizó evidencia sobre el impacto de la transformación digital en los procesos de enseñanza-aprendizaje en la educación superior. La búsqueda bibliográfica se realizó en múltiples bases de datos de alto impacto, incluyendo Web of Science, Scopus, ERIC, PsycINFO, IEEE Xplore y ScienceDirect. Se incluyeron estudios cuantitativos publicados entre 2019 y 2024 que evaluaron el efecto de diversas tecnologías digitales en resultados de aprendizaje de estudiantes universitarios. Se analizaron 25 investigaciones relevantes, los resultados muestran que las plataformas y recursos para educación virtual se han adoptado ampliamente, transformando las interacciones entre estudiantes y docentes. Sin embargo, se evidencia la necesidad de desarrollar intencionalmente competencias digitales en ambos grupos para implementar soluciones tecnológicas que realmente mejoren el aprendizaje. Si bien existen importantes desafíos de integración efectiva de tecnologías digitales en contextos educativos reales, su potencial para flexibilizar y personalizar la educación es significativo. Se requiere más investigación cuantitativa sobre el impacto diferenciado de tecnologías digitales específicas en diversos aspectos del aprendizaje. Las políticas institucionales deben estar fundamentadas en evidencia sólida para promover aquellas soluciones tecnológicas que efectivamente mejoren la calidad y equidad educativa.
A TALE OF CAPTOPRIL DETECTION BASED ON AN ELECTROCHEMICAL MIP SENSOR
Authors: Yarman Aysu , Kurbanoğlu Sevinç
Published: April 2024

Objective: In this study, it was aimed to develop a voltammetric method using sensors prepared with the molecular imprinting technique for the detection of Captopril, an antihypertensive drug.
Material and Method: With the molecular imprinting method, molecularly imprinted polymers were formed on the surfaces of glassy carbon electrodes. The analysis of Captopril was carried out using the differential pulse voltammetry method, and the performance of the sensor was examined.
Result and Discussion: A linear analysis was performed up to 50 pM Captopril with a limit of detection value of 2.62 pM. Selectivity studies have shown that Captopril has a higher electrochemical response than other interfering substances, such as paracetamol, ascorbic acid, and L-proline.
STUDY OF THE MINERAL ELEMENT CONTENT OF RED OAK (QUERCUS RUBRA L.) IN COMPARISON WITH SOIL
Authors: Konovalova Olena , Omelkovets Tetiana , Hurtovetko Iryna , Kalısta Mariia , Shcherbakova Olha , Sydora Natalia
Published: April 2024

Objective: The purpose of the present work was to to determine the content of mineral elements in annual shoots with leaves and in the fruits of wild individuals of red oak (Quercus rubra L.) from two different places of growth in comparison with their content in the soil under the plants.
Material and Method: The annual shoots with leaves of red oak with soil samples under plants were collected in August 2022 and fruits collected in September 2022 in Ukraine in the mixed forests near Tynne village (Rivne Oblast) and near Lisnyky village (Kyiv Oblast). The research was carried out by the X-ray fluorescence method on the “ElvaX-med” energy dispersive spectrometer.
Result and Discussion: As a result of the study, both types of raw materials of Quercus rubra (annual shoots with leaves and fruits) revealed the presence of 4 macro- (S, Cl, K, Ca), 8 micro-(Mn, Fe, Cu, Zn, Br, Rb, Sr, Pb) and 4 ultramicroelements (Cr, Co, Ni, Zr). It was determined that red oak plants are concentrators of potassium and sulfur from the soil (which is indicated by the high content of these macroelements both in the soil under the plants and in all studied raw materials). A high content of calcium in the raw material of red oak from both locations was noted, and this content is apparently characteristic of the plant itself, regardless of the soil on which it grows.
Silk fibroin in regenerative medicine: material evolution and biofabrication techniques
Authors:   , Viola Martina
Published: April 2024

The pursuit of innovative biomaterials and biofabrication techniques in regenerative medicine faces ongoing challenges due to the complex nature of tissues and organs requiring regeneration. Ideal biomaterials should seamlessly integrate with host tissues, possess appropriate mechanical properties, minimize immune rejection, and support cell growth and differentiation. This necessitates a diverse range of customizable biomaterials and precise biofabrication techniques to create functional tissue constructs. This thesis focuses on silk fibroin (SF) as a promising material for regenerative medicine. SF, historically associated with luxury textiles, has emerged as a key component in biofabrication due to its versatility. Chapters explore enhancing SF scaffolds' extensibility, coagulation methods' influence on SF aerogels, and the integration of SF with other materials to improve mechanical properties. Additionally, the thesis examines the creation of tube-like structures for kidney regeneration using temperature-sensitive hydrogels. Despite promising advances, challenges such as long-term storage of SF solutions, control over SF structure, and the transition to scalable production processes remain. Bridging the gap between lab research and clinical applications requires extensive preclinical studies. Despite these challenges, SF's potential for biomedical applications is recognized by emerging companies and ongoing clinical trials, paving the way for transformative innovations in regenerative medicine.
Surviving and Thriving with Critical Congenital Heart Disease
Authors:   , Sprong Maaike Cornelia Arnolda
Published: April 2024

The survival rates of children with a serious congenital heart defect have improved dramatically in recent years due to significant advances in cardiac surgery.
The first aim of this thesis, which is part of the Congenital Heart Disease (CHD) - life span study, was to gain insight into the severity, prevalence and (early) predictors of developmental problems in children with a congenital heart defect.
Secondly, the research explores the concerns and experiences of parents regarding the development and received care of their child with CHD. Emphasizing the importance of parental involvement for enhancing care quality and better alignment with family needs.
The thesis reveals that children undergoing early cardiac surgery are at heightened risk of motor impairments, reduced activity levels, and cardiorespiratory fitness in their first decade, particularly those with a single ventricle physiology or an aortic arch anomaly. Furthermore, motor outcomes in all diagnostic groups appear to be moderately stable over time, and the number of children with motor impairment increased over time.
Multiple factors contribute to this risk. Factors such as diagnosis and operative procedures contribute to this risk, while neonatal brain MRI serves as a predictive "biomarker." Additionally, environmental factors such as parental perceptions and parenting styles play a role in individual risk.
To safeguard quality of life, long-term outcomes and cardiovascular health of children with CHD, systematic developmental observations from early childhood to adulthood are recommended. This entails a tailored, family-centered multidisciplinary follow-up program, addressing neurological development, physical activity, cardiorespiratory condition, and mental well-being of the CHD patient throughout their life trajectory and should also encompass the wellbeing of the family system.
PLANNING OF THE FLOWER GARDEN AGROTOURISM AREA IN BATURADEN WITH THE MEDITERRANEAN CONCEPT
Authors: Widyandini Wita , Yess Karina , Lestariningsih Dwi Jati
Published: April 2024

Baturaden di Kabupaten Banyumas merupakan salah satu kawasan wisata alam yang terletak di lereng Gunung Slamet di sebelah Selatan. Letaknya yang berada di lereng gunung menjadikan Baturaden memiliki udara yang sejuk dan memungkinkan beragam spesies tanaman khususnya bunga untuk tumbuh di sini, sehingga jenis pariwisata yang memungkinkan untuk dikembangkan di Baturaden adalah agrowisata, khususnya taman bunga.   
Penelitian ini membahas mengenai fenomena yang menjadi latar belakang dilakukannya Perencanaan Kawasan Agrowisata Taman Bunga di Baturaden, sehingga metode penelitian yang digunakan adalah metode kualitatif, dengan teknik pengumpulan data meliputi pengamatan langsung, wawancara, dan dokumentasi.
Kawasan Agrowisata Taman Bunga di Baturaden didesain dengan pendekatan konsep Mediterania serta memiliki multifungsi yaitu sebagai tempat wisata dan rekreasi juga sebagai sarana edukasi bagi pengunjung untuk memperluas pengetahuan mengenai berbagai spesies tanaman bunga. Perencanaan Kawasan Agrowisata Taman Bunga di Baturaden juga sangat mendukung kearifan lokal dimana kegiatan kepariwisataan berbasis masyarakat, wawasan budaya, dan berkelanjutan yaitu dengan melibatkan masyarakat dalam pengelolaannya, sehingga dapat memberdayakan perekonomian masyarakat di sekitarnya.
Kata kunci: Agrowisata, Baturaden, Taman Bunga, Mediterania
OPTIMIZATION OF COAL BLENDING PROCESS TO MEET DEMAND OF PLTU SURALAYA WITH MARKET BRAND BA-48 AT PT. BUKIT ASAM Tbk.
Authors: Cahyono Yudho Dwi Galih , Firmansyah  , Kusdarini Esthi
Published: April 2024

Bukit Asam Ltd. provides coal grades that range from 4001 to 7001 kcal/kg calories. This company's customer is PLTU Suralaya, which has a market demand for the BA brand 48 and parameters such as 30% total moisture, 8% ash, 0.8% total sulfur, and 4800 kcal/kg calories. To optimize the desired blending results, optimization will be carried out using simplex method calculations with the help of the Pom-Qm application for Windows V3. This study aimed to find the percentage of coal blended using the simplex method according to consumer demand contracts and to recommend optimal proportions for blending. The research methodology employed qualitative and quantitative data. The results indicated that the percentages needed to meet the demand for PLTU Suralaya were mine brands MT 47 and AL 53 at 49%, MT 47 at 51%, and AL 53 at 63%. The results of the coal quality test were: total moisture of 29.99%, ash of 3.09%, sulfur of 0.57%, and calories of 4817 kcal/kg. All of them met the demand for PLTU Suralaya.
ANALISIS PEMROGRAMAN CNC MILLING PADA PEMBUATAN DISC BRAKE MENGGUNAKAN CAD CAM
Authors: Fauzan Novansyah  , Abizar Haris
Published: April 2024

Perkembangan dan kemajuan teknologi saat ini tidak dipungkiri sudah begitu pesat yang dimana hal ini memaksa penggunaan teknologi untuk bisa mengoptimalkan proses produksi yang cepat. Hal tersebut diiringi dengan pesatnya perkembangan dunia otomotif saat ini dan disertai dengan berbagai inovasi terbaru, yang dimana semakin banyak pula pengguna kendaraan pada saat ini. Tujuan penelitian ini adalah untuk menghasilkan sebuah NC file, parameter pemesinan dan estimasi waktu pengerjaan pada proses pembuatan discbrake menggunakan mesin CNC. Penelitian ini menggunakan metode penelitian desain dan pengembangan (design development research) yang dimana metode ini bertujuan untuk mengembangkan suatu perangkat instrumen untuk menciptakan sebuah produk dan alat. Metode ini secara umum digunakan untuk sebuah studi mengenai perancangan, pengembangan dan evaluasi yang dijabarkan secara sistematis dan dengan kaidah tertentu. Hasil menunjukan berdasarkan keseluruhan proses CAM maka didapatkan sebuah estimasi waktu untuk pembuatan disc brake yaitu selama 44 menit 37,97 detik. Kemudian dari proses CAM tersebut juga menghasilkan sebuah NC file atau file kode. Setelah  NC file sudah dilakukan penyesuaian dan estimasi waktu pengerjaanpun sudah optimal maka program dapat diserahkan kepada operator untuk dilakukan proses pemesinan.
THE EFFECT OF BIOSOLAR AND PERTAMINA DEX ON POWER PERFORMANCE, TORQUE AND DIESEL FUEL CONSUMPTION
Authors: Rudy Hartana Dandung , Harianto  , Wahid Anwar
Published: April 2024

Initially, diesel motor fuel was only diesel, but now there are biodiesel and Pertamina Dex. In order to analyze the performance of a diesel engine, it is necessary to test it using Pertamina Dex and Biosolar. This study used an experimental method with four variations of engine speed, namely 1000 rpm, 2000 rpm, 2500 rpm, and 2500 rpm. The tool used in this research is a type 4JA1 diesel engine, the performance parameters of the diesel engine are power, torque, and specific fuel consumption. The results showed that engine performance using Pertamina Dex fuel was superior to that using biodiesel. The superiority of pertamina dex is the torque at 2500 rpm of 68.992 Nm, the power parameter has increased by 5.246%, while the specific fuel consumption of pertamina dex is 0.132% lower than biodiesel.
ANALISIS KEAUSAN PAHAT ENDMILL HSS FLUTE 4 PADA PROSES MILLING HANDLE SEPEDA MOTOR
Authors: Taufik Rohman Fikri , Abizar Haris
Published: April 2024

Industri manufakrur semakin pesat dan berkembang pada era globalisasi maka inovasi sangat diperlukan dan menunjang serta mendukung proses manufaktur. Penelitian ini bertujuan untuk mengetahui nilai keausan pahat Endmill Flute 4 pada proses CNC Milling pada benda kerja handle sepeda motor. Metode yang digunakan dalam penelitian kali ini ialah eksperimen, desain yang digunakan kajian ini dengan menggunakan eksperimen percobaaan yang diberi perlakuan. Pengambilan data nilai keausan umur pahat pada proses CNC Milling Tipe VPS 850 dengan variasi 10 kali proses percobaan pada benda kerja jenis Handle RH/LH. Hasil dari penelitian ini ialah bahwa pada pengujian berat end end mill mempunyai selisih berat dengan rata rata end mill cutter sebesar 0, 08 gram, serta pada pengujian suhu endmill mempunyai jumlah selisih suhu dengan rata rata end miil cutter sebesar 2,29 derajat celcius. Kenaikan suhu mempengaruhi keausan pahat dengan berkurangnya berat pahat, yang disebabkan pada proses penyatan atau pemotongan yang tinggi menimbukan panas dan naiknya suhu akibat gesekan pahat dan benda kerja. Semakin banyaknya percobaan endmill, menimbukan gesekan yang yang signifikan. Hingga keausan pada pahat tampak jelas perubahan bentuk dari pahat end mill ini buktikan dari keausan kawah pahat dan keausan tepi pahat yang cukup berdampak pada daya makan pahat.
THE CRITICAL LEVEL OF WATER INFILTRATION MAPPING IN GAJAHMUNGKUR AND CANDISARI SUB-DISTRICTS, SEMARANG CITY
Authors: Budianta Wawan , Adhi Putra Bagas , Dewi Titisari Anastasia
Published: April 2024

The high rate of urbanization in the city of Semarang has an impact on sustainable development which continues to be intensified by the government, accompanied by changes in the function of water infiltration areas to become infrastructure areas. This change in land use causes the water infiltration area to decrease. Therefore, research was carried out on the critical level of the water infiltration area in Gajahmungkur and Candisari Districts, Semarang City, to determine the condition of the critical level and the size of each critical level. The research was carried out by collecting primary data through mapping soil types and lithology in the field and secondary data, including land use data and slope, which will be verified later in the area. The data above will then be analyzed using the Analytical Hierarchy Process (AHP) method by weighing each parameter and subparameter. The parameters are soil type, land use, slope, and lithology. These weightings are then overlaid to produce a zoning map of the critical level of the water infiltration area in Gajahmungkur and Candisari Districts, Semarang City. The study area's critical level of water infiltration areas can be divided into good, naturally normal, started to be critical, slightly critical, critical, and very critical.
KAJIAN LAJU INFILTRASI TANAH DAN PENGGUNAANNYA DI DESA NGALANG, KECAMATAN GEDANGSARI, KABUPATEN GUNUNGKIDUL
Authors: Fitrah Dimas Pratama , Budianta Wawan
Published: April 2024

Meningkatnya pertumbuhan penduduk membuat pengelolaan lahan harus dilakukan dengan baik. Dalam mengelola lahan, salah satu aspek terpenting adalah daya resap tanah atau infiltrasi. Faktor yang dapat mempengaruhi infiltrasi di antaranya yaitu litologi, jenis tanah, dan sifat fisik tanah (kandungan air, porositas, rasio pori, dan derajat saturasi). Pengujian dilakukan pada 32 titik di Desa Ngalang, Kecamatan Gedangsari, Kabupaten Gunungkidul. Pengukuran laju infiltrasi dilakukan dengan turf-tec infiltrometer dan dihitung menggunakan model infiltrasi Philips dan Kostiakov yang diklasifikasikan dengan klasifikasi Kohnke (1968). Semua parameter dikorelasikan secara overlay dan grafik terhadap laju infiltrasi model Philips yang dinilai lebih baik dibanding model Kostiakov. Hasil korelasi menunjukkan semua parameter memiliki pengaruh terhadap laju infiltrasi. Parameter jenis tanah memiliki hubungan terkecil dengan nilai R2 yaitu 0,0054, sedangkan rasio pori memiliki hubungan terbesar dengan nilai R2 yaitu 0,2603. Berdasarkan laju infiltrasinya, penggunaan lahan daerah penelitian dibagi menjadi empat, yaitu area pertanian dan penggembalaan, perkebunan, perladangan, dan recharge area.
THE DEVELOPMENT OF MOBILE APPLICATION FOR DENGUE SITE INSPECTION IN JOHOR BAHRU
Authors: Noor Azmy Suzanna , Huda Hashim Nur Zarifah , Abd Wahid Ainulbariah , Rizal Toha Haidar
Published: April 2024

This study focuses on developing a user-friendly mobile application for dengue site inspection, aiming to address the persistent threat of vector-borne diseases in Malaysia. The current practice of dengue site inspection is still using paper-based method, which is inefficient, prompting the need for a mobile app solution. Existing methods for identifying and destroying breeding grounds, known as Destruction Action the Breeding Place (Pemusnahan Tempat Pembiakan, PTP), face constraints due to limited technology and information facilities. This leads to incomplete eradication and the need for repeated operations in the same areas, resulting increased in operational costs. To address these issues, a simple and user-friendly mobile application is designed to enhance field data entry, enable location tracking, and provide easy access to operational data from the inspection site. To reduce the effort on site record-keeping, the application is developed on the cost-effective open-source platform - QGIS, and QField. The aim is to improve the accuracy of PTP activities based on mobile application data and increase productivity through direct data entry in the field. The objectives of this study are to identify the requirements of a mobile application for dengue site inspection, develop a mobile application with location tracking enablement, and validate the results and effectiveness of the developed mobile application. The implemented apps were tested on the field by the health officer and 98% of them agree that the application does help the process of dengue site inspection and has significantly improved their workflow. The mobile application provided them with a user-friendly interface and streamlined data entry process, allowing them to easily capture and update information during dengue site inspections. The integration of location tracking capabilities also enabled them to accurately identify and record the precise coordinates of potential breeding sites. Overall, the positive feedback from the health officers demonstrates the effectiveness and usefulness of the developed application in enhancing the efficiency and effectiveness of dengue site inspections. The application aligns with the Sustainable Development Goal of Good Health and Well-Being and contributes to the digitalization process of the Fourth Industrial Revolution (Industry 4.0), aiming at reducing long-term operating costs.