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https://purl.org/pe-repo/ocde/ford#5.02.04
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1
artículo
In this study the work of induction of microbial carbonate genesis was carried out in order to obtain an improvement in the consolidation of the materials used in construction such as mortars and paving stones, in order to confer them greater resistance and conservation. As a result of the tests carried out, it was found that the inclusion of a bacterial biomass culture formed by bacteria of the genus Bacillus sp., in the formulation of the mortar and paving stones, helped to increase the resistance to compression with Fc values. 266.3 kg/cm2 higher compared to the control of Fc 261.0 kg/cm2. Also, the state of aggregation of the particles improved remarkably, we observed that in the fragmentation tests the structures showed a geometrically more homogeneous grid, compared with the cobbles of the control test. Regarding the texture and roughness aspects, it was proved that the paving ston...
2
artículo
In this study the work of induction of microbial carbonate genesis was carried out in order to obtain an improvement in the consolidation of the materials used in construction such as mortars and paving stones, in order to confer them greater resistance and conservation. As a result of the tests carried out, it was found that the inclusion of a bacterial biomass culture formed by bacteria of the genus Bacillus sp., in the formulation of the mortar and paving stones, helped to increase the resistance to compression with Fc values. 266.3 kg/cm2 higher compared to the control of Fc 261.0 kg/cm2. Also, the state of aggregation of the particles improved remarkably, we observed that in the fragmentation tests the structures showed a geometrically more homogeneous grid, compared with the cobbles of the control test. Regarding the texture and roughness aspects, it was proved that the paving ston...
3
artículo
The objective of this research was to deepen the understanding of ethnomathematics developed by masons in the Amazonian regions of Peru. To this end, the mathematical concepts implicit in the masons' practices were identified and analyzed, as well as to understand the role of culture and the natural environment in the configuration of this knowledge. The type of study was considered ethnographic, and consisted of gathering information through observation. A questionnaire was applied, with the purpose of evidencing the procedures carried out by the masons in the resolution of labor calculations using the fundamental operations (addition, subtraction, multiplication and division) of ethnomathematical origin. In the same way, scientific articles were reviewed. One of the key findings of this research is the integration of mathematical concepts in the labor practice of masons. It was observe...
4
artículo
In this article it is presented the technique succinctly to elaborate scales of valuation in those that values are measured referred to specific behaviours, The starting point is the comparison among three definitions lo illustrate the character of feeling of the values to opt at the end for the definition of Rokeach, according to which uses the technique of Likert and each article contains the comparison between the selected value and a value competitor, assisting lo the definition of Rokeach according to which a value is a relatively permanent belief That a way of particular behaviour or that an existence state is personal and socially preferable to alternating ways of behaviour and existence states». Of definition is he/she has taken as approach for the construction from the items to the preference notion. Next the steps are presented to give from the moment in That the values are ch...
5
artículo
In this article it is presented the technique succinctly to elaborate scales of valuation in those that values are measured referred to specific behaviours, The starting point is the comparison among three definitions lo illustrate the character of feeling of the values to opt at the end for the definition of Rokeach, according to which uses the technique of Likert and each article contains the comparison between the selected value and a value competitor, assisting lo the definition of Rokeach according to which a value is a relatively permanent belief That a way of particular behaviour or that an existence state is personal and socially preferable to alternating ways of behaviour and existence states». Of definition is he/she has taken as approach for the construction from the items to the preference notion. Next the steps are presented to give from the moment in That the values are ch...
6
artículo
Publicado 2007
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The construct validity of six hypothesized dimensions was explored for an Accountancy majorgraduation examination, in order to understand the underlying process of responding. Using answers from 313 examinees to an intentional sample of 17 objective items administered on large scale, a confirmatory factorial analysis was carried out, with a Multi-Trait Multi-Method matrix (MTMM): Traits represented three cognitive operations required to solve the items and the methods represented three knowledge fields of the content. Each item was linked to a cog- nitive operation and to a knowledge field. The resulting model showed convergent validity in two constructs and its manifest variables and divergent only between technical and combined knowledge. Thus, the answering process was explained, simultaneously by the Understanding operation influenced by Theoretical knowledge. Implications to...
7
artículo
Publicado 2006
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Our location in the world makes us a country with a high seismic risk. Taking into account that the information produced during a seismic event is of vital importance for the study carried out by seismology, it is necessary to use the appropriate type of instrumentation to record these data. Currently, electronics provides the necessary technology for the study of phenomena of this type. The design and construction of a Digital Accelerograph will allow us to carry out a detailed study of a seismic movement and the effect caused on the structure of buildings. Finally, we can say that the construction of an instrument of this type at a low cost will allow repowering and increasing the CISMID accelerographic network and, in general, improve the knowledge of seismic phenomena at the national level.
8
artículo
Publicado 2005
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One of the factors that determine the productivity inside a company is the state of the machinery with which is counted for the production. Our objective was to design a system that allows the engineers to supervise and to evaluate the state of the machinery, so that this in sot only repaired when it doesn't work, but rather one has the possibility to take a periodic registration of the operation of the same one. With it, it'll be possible to identify the flaws of the machinery in their diverse evolutionary phases. This will allow to carry out an appropriate correction of the problem diminishing the maintenance cost and, therefore, to stop the machinery for a smaller period of time. The system that we have designed in compound for a card of acquisition that will allow to capture and to transfer the mechanical vibrations of the machinery toward analysis software that allows the engineers ...
9
artículo
Publicado 2007
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The construct validity of six hypothesized dimensions was explored for an Accountancy majorgraduation examination, in order to understand the underlying process of responding. Using answers from 313 examinees to an intentional sample of 17 objective items administered on large scale, a confirmatory factorial analysis was carried out, with a Multi-Trait Multi-Method matrix (MTMM): Traits represented three cognitive operations required to solve the items and the methods represented three knowledge fields of the content. Each item was linked to a cog- nitive operation and to a knowledge field. The resulting model showed convergent validity in two constructs and its manifest variables and divergent only between technical and combined knowledge. Thus, the answering process was explained, simultaneously by the Understanding operation influenced by Theoretical knowledge. Implications to...
10
tesis de grado
Publicado 2025
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The Peruvian construction sector, especially its SMEs, faces critical inefficiencies in supply chain management, particularly in procurement processes. Past research has shown that these inefficiencies lead to significant cost overruns and delays. This study addressed these challenges by implementing a procurement model integrating Lean Construction, Kaizen, and Just-In-Time (JIT). The main challenges identified were excess material purchases (20.12% of cost overruns) and late deliveries (25.84% of operations). The model reduced late deliveries from 25.84% to 8.95% and purchasing errors from 8.49% to 3.33%, confirming its effectiveness. The research has substantial academic and socio-economic implications for Peruvian SMEs, providing a solution that enhances efficiency and reduces operational costs. Further research should explore broader applications of this model and strategies to prom...
11
artículo
Publicado 2019
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The article examines the power that the Criminal Procedure Code gives the National Police to inform the media about the identity of the accused; and analyzes if this faculty affects the right to the presumption of innocence enshrined in the Political Constitution of the State and the Code of Criminal Procedure, in order to demonstrate that, in this aspect, the guarantee of a democratic criminal system is null and has serious negative effects in the person, in terms of labeling and stigmatization for the construction of the enemy.
12
artículo
Publicado 2020
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In recent years, in Latin America, reference has been frequently made to “collaborative” contracts. However, there is no common understanding of what this term means and the relevant international discussion and development. This article seeks to establish the framework of the discussion on alternatives available to increase productivity in the construction industry and how this has led to seeing the contract as a useful tool to promote said process.
13
artículo
Publicado 2019
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The article examines the power that the Criminal Procedure Code gives the National Police to inform the media about the identity of the accused; and analyzes if this faculty affects the right to the presumption of innocence enshrined in the Political Constitution of the State and the Code of Criminal Procedure, in order to demonstrate that, in this aspect, the guarantee of a democratic criminal system is null and has serious negative effects in the person, in terms of labeling and stigmatization for the construction of the enemy.
14
artículo
Publicado 2020
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In recent years, in Latin America, reference has been frequently made to “collaborative” contracts. However, there is no common understanding of what this term means and the relevant international discussion and development. This article seeks to establish the framework of the discussion on alternatives available to increase productivity in the construction industry and how this has led to seeing the contract as a useful tool to promote said process.
15
artículo
Publicado 2020
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The article examines the development of speech in elementary school students. The research objective is to determine the status of coherent speech development in 3rd-grade students in the process of constructive and artistic activity. The article defines the criteria (structural and compositional, communicative and productive, and communicative and creative), indicators, and levels of development of coherent speech in elementary school students in the process of constructive and artistic activity. Each criterion includes a group of qualitative content-disclosing indicators and characterizes the achievements of students in the intended type of activity. Based on this, the authors have developed a methodological tool that allows them to diagnose coherent speech development in 3rd-grade students in the process of constructive and artistic activity and to conduct a precise quantitative diffe...
16
artículo
Publicado 2020
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The article examines the development of speech in elementary school students. The research objective is to determine the status of coherent speech development in 3rd-grade students in the process of constructive and artistic activity. The article defines the criteria (structural and compositional, communicative and productive, and communicative and creative), indicators, and levels of development of coherent speech in elementary school students in the process of constructive and artistic activity. Each criterion includes a group of qualitative content-disclosing indicators and characterizes the achievements of students in the intended type of activity. Based on this, the authors have developed a methodological tool that allows them to diagnose coherent speech development in 3rd-grade students in the process of constructive and artistic activity and to conduct a precise quantitative diffe...
17
artículo
Publicado 2023
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One of the biggest problems in the construction industry that often generates delays and loss of value in the construction site are the processes related to the management of material transportation. These processes are decisive in collaborating in the search for greater productivity. Lean Construction (LC), together with its tools and techniques, is a methodology that is being implemented in the sector and whose objective is the identification and elimination of waste on-site.The objective of this work is to analyze the impact of implementing the LC methodology in the construction sector focused on the transportation of materials, as well as to verify the other benefits of the methodology. In this systematic literature review (SLR) work, seven online databases were used to search for scientific manuscripts related to the LC methodology and the materials transportation process; after bei...
18
artículo
Publicado 2020
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El texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado.
19
artículo
Publicado 2012
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The rationale of this paper is to report by presenting data on the direct recognition of the canal that supplied water for over three hundred years to the city of Wari, from investigations with excavations in several sections of the channel, as a reference for qochas work, canals, reservoirs supplying the metropolis Wari (Perez 2006, 2007 and 2010) and as part of the hydrologic and hydraulic study of inca canal Wari Wari Yarccan or Yarcca in Ayacucho (Chavarría 2010). We believe that this is a great proyec for social and economic infraestructure that the Wari state executed in the Andes during the second half of the first millennium od the present Christian era, about 800 yerars before formation of the Empire of Tawantinsuyo.
20
artículo
Publicado 2023
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The concept of soundscape was incorporated in the late 1960s, from the field of acoustics and music, to address the problem of excessive noise in cities and disorderly urban planning, which has led to residential areas ‒which are supposed to be quiet‒ are juxtaposed with commercial and/or production activities that degrade the quality of hearing life. Starting in 2002, it was realized that the concept of soundscape could also be used as a tool to build a sound identity, whether to preserve historical sound environments, rescue “lost” sound activities from anthropology or create auditorily healthy zones within the cities. Barcelona is the first city that took the initiative to establish large blocks in order to reduce urban noise based on the particular acoustic study of each neighborhood, defining a differentiated sound landscape to preserve. Since 2012, acousticians from all ove...
