bluuebunny/crossref_metadata_2025 huggingface dataset:
The East Asian Winter Monsoon Acts as a Major Selective Factor in the Intraspecific Differentiation of Drought-Tolerant Nitraria tangutorum in Northwest China
Authors: Yin Hengxia , Wang Lirong , Shi Yong , Qian Chaoju , Zhou Huakun , Wang Wenying , Ma Xiao-Fei , Tran Lam-Son Phan , Zhang Benyin
Published: August 2020

The influence of Quaternary climate fluctuation on the geographical structure and genetic diversity of species distributed in the regions of the Qinghai–Tibet Plateau (QTP) has been well established. However, the underlying role of the East Asian monsoon system (EAMS) in shaping the genetic structure of the population and the demography of plants located in the arid northwest of China has not been explored. In the present study, Nitraria tangutorum, a drought-tolerant desert shrub that is distributed in the EAMS zone and has substantial ecological and economic value, was profiled to better understand the influence of EAMS evolution on its biogeographical patterns and demographic history. Thus, the phylogeographical structure and historical dynamics of this plant species were elucidated using its five chloroplast DNA (cpDNA) fragments. Hierarchical structure analysis revealed three distinct, divergent lineages: West, East-A, and East-B. The molecular dating was carried out using a Bayesian approach to estimate the time of intraspecies divergence. Notably, the eastern region, which included East-A and East-B lineages, was revealed to be the original center of distribution and was characterized by a high level of genetic diversity, with the intraspecific divergence time dated to be around 2.53 million years ago (Ma). These findings, combined with the data obtained by ecological niche modeling analysis, indicated that the East lineages have undergone population expansion and differentiation, which were closely correlated with the development of the EAMS, especially the East Asian winter monsoon (EAWM). The West lineage appears to have originated from the migration of N. tangutorum across the Hexi corridor at around 1.85 Ma, and subsequent colonization of the western region. These results suggest that the EAWM accelerated the population expansion of N. tangutorum and subsequent intraspecific differentiation. These findings collectively provide new information on the impact of the evolution of the EAMS on intraspecific diversification and population demography of drought-tolerant plant species in northwest China.
Effects of Green Brazilian Propolis Alcohol Extract on Nociceptive Pain Models in Rats
Authors: Al-Hariri Mohammed T. , Abualait Turki S.
Published: August 2020

Pain is one of the most common symptoms encountered in the medical practice. None of the management procedures used currently offer a complete relief for patients suffering from nociceptive pain. New treatment strategies for pain management are needed. Propolis has been used in traditional medicine to relieve various types of pain. The aim of the current study was to investigate the potential effects of the green Brazilian propolis alcohol extract in vivo on the nociceptive and inflammatory pain models in rats. Rats were distributed into three random groups (n = 6); Group I: control group received normal saline intraperitoneally (i.p.); Group II: treated with green Brazilian propolis alcohol extract (P50 mg/kg i.p.); Group III: treated with P100 mg/kg i.p. After sixty minutes, 50 μL of 5% formalin was injected subcutaneously into the dorsal surface of the right hind paw. The nociceptive response was identified by counting the number of flinches of the injected paw. The number of flinches was counted for the period of 0–5 min (early phase; neurogenic) and 10–60 min (late phase; inflammatory). Thermal hyperalgesia was assessed using three-paw withdrawal latency measurement with ten minutes intervals using a planter analgesic meter. Abdominal writhe (contraction) was induced by i.p. injection of acetic acid (1 mL of 2%). The results showed that green Brazilian propolis alcohol extract caused a significant inhibition of acetic acid-induced pain and significantly increased the pain threshold against infrared and formalin tests. The promising antinociceptive and anti-inflammatory properties of propolis and/or its active constituents as natural compounds in the present study indicates that it merits further studies in pain.
Photosynthetic Traits and Nitrogen Uptake in Crops: Which Is the Role of Arbuscular Mycorrhizal Fungi?
Authors: Balestrini Raffaella , Brunetti Cecilia , Chitarra Walter , Nerva Luca
Published: August 2020

Arbuscular mycorrhizal (AM) fungi are root symbionts that provide mineral nutrients to the host plant in exchange for carbon compounds. AM fungi positively affect several aspects of plant life, improving nutrition and leading to a better growth, stress tolerance, and disease resistance and they interact with most crop plants such as cereals, horticultural species, and fruit trees. For this reason, they receive expanding attention for the potential use in sustainable and climate-smart agriculture context. Although several positive effects have been reported on photosynthetic traits in host plants, showing improved performances under abiotic stresses such as drought, salinity and extreme temperature, the involved mechanisms are still to be fully discovered. In this review, some controversy aspects related to AM symbiosis and photosynthesis performances will be discussed, with a specific focus on nitrogen acquisition-mediated by AM fungi.
Keep Calm and Survive: Adaptation Strategies to Energy Crisis in Fruit Trees under Root Hypoxia
Authors: Salvatierra Ariel , Toro Guillermo , Mateluna Patricio , Opazo Ismael , Ortiz Mauricio , Pimentel Paula
Published: August 2020

Plants are permanently facing challenges imposed by the environment which, in the context of the current scenario of global climate change, implies a constant process of adaptation to survive and even, in the case of crops, at least maintain yield. O2 deficiency at the rhizosphere level, i.e., root hypoxia, is one of the factors with the greatest impact at whole-plant level. At cellular level, this O2 deficiency provokes a disturbance in the energy metabolism which has notable consequences on the yield of plant crops. In this sense, although several physiological studies describe processes involved in plant adaptation to root hypoxia in woody fruit trees, with emphasis on the negative impacts on photosynthetic rate, there are very few studies that include -omics strategies for specifically understanding these processes in the roots of such species. Through a de novo assembly approach, a comparative transcriptome study of waterlogged Prunus spp. genotypes contrasting in their tolerance to root hypoxia was revisited in order to gain a deeper insight into the reconfiguration of pivotal pathways involved in energy metabolism. This re-analysis describes the classically altered pathways seen in the roots of woody fruit trees under hypoxia, but also routes that link them to pathways involved with nitrogen assimilation and the maintenance of cytoplasmic pH and glycolytic flow. In addition, the effects of root hypoxia on the transcription of genes related to the mitochondrial oxidative phosphorylation system, responsible for providing adenosine triphosphate (ATP) to the cell, are discussed in terms of their roles in the energy balance, reactive oxygen species (ROS) metabolism and aerenchyma formation. This review compiles key findings that help to explain the trait of tolerance to root hypoxia in woody fruit species, giving special attention to their strategies for managing the energy crisis. Finally, research challenges addressing less-explored topics in recovery and stress memory in woody fruit trees are pointed out.
Exploring E-Waste Resources Recovery in Household Solid Waste Recycling
Authors: Siddiqi Muhammad Mobin , Naseer Muhammad Nihal , Abdul Wahab Yasmin , Hamizi Nor Aliya , Badruddin Irfan Anjum , Hasan Mohd Abul , Zaman Chowdhury Zaira , Akbarzadeh Omid , Johan Mohd Rafie , Kamangar Sarfaraz
Published: August 2020

The ecosystem of earth, the habitation of 7.53 billion people and more than 8.7 million species, is being imbalanced by anthropogenic activities. The ever-increasing human population and race of industrialization is an exacerbated threat to the ecosystem. At present, the global average waste generation per person is articulated as 494 kg/year, an enormous amount of household waste (HSW) that ultimately hits 3.71×1012 kg of waste in one year. The ultimate destination of HSW is a burning issue because open dumping and burning as the main waste treatment and final disposal systems create catastrophic environmental limitations. This paper strives to contribute to this issue of HSW management that matters to everyone’s business, specifically to developing nations. The HSW management system of the world’s 12th largest city and 24th most polluted city, Karachi, was studied with the aim of generating possible economic gains by recycling HSWs. In this regard, the authors surveyed dumping sites for sample collection. The sample was segregated physically to determine the content type (organic, metals, and many others). Afterward, chemical analysis on AAS (Atomic Absorption Spectrophotometry) of debris and soil from a landfill site was performed. HSW is classified and quantified into major classes of household materials. The concentrations of e-waste [Cu], industrial development indicator [Fe], and the main component of lead-acid storage batteries [Pb] are quantified as 199.5, 428.5, and 108.5 ppm, respectively. The annual generation of the aforementioned metals as waste recovery is articulated as 1.2 × 106, 2.6 × 106 and 6.5 × 105 kg, respectively. Significantly, this study concluded that a results-based metal recovery worth 6.1 million USD is discarded every year in HSW management practices.
Alginate Hydrogel-Embedded Capillary Sensor for Quantitative Immunoassay with Naked Eye
Authors: Zheng Wenshu , Gao Cen , Shen Liheng , Qu Chang , Zhang Xuan , Yang Lu , Feng Qiang , Tang Rongbing
Published: August 2020

We have developed an alginate hydrogel-embedded capillary sensor (AHCS) for naked eye-based quantification of immunoassay. Alkaline phosphatase (ALP) can modulate gel-sol transformation to increase the permeability of Cu2+-cross-linked alginate hydrogel film in the AHCS, followed by solution exchange into the capillary. Through measuring the length of the liquid phase of the microfluidics in the capillary at a given time, the concentration of the ALP could be quantified with the naked eye. Since ALP is widely applied as a signal reporter for immunoassays, the AHCS could easily accommodate conventional immune sensing platforms. We justify the practicality of AHCS with hepatitis B virus surface antigen (HBsAg) in serum samples and got comparable results with commercialized immunoassay. This AHCS is easy to make and use, effective in cost, and robust in quantification with the naked eye, showing great promise for next generation point-of-care testing.
3D-Printed All-Dielectric Electromagnetic Encoders with Synchronous Reading for Measuring Displacements and Velocities
Authors: Herrojo Cristian , Paredes Ferran , Martín Ferran
Published: August 2020

In this paper, 3D-printed electromagnetic (or microwave) encoders with synchronous reading based on permittivity contrast, and devoted to the measurement of displacements and velocities, are reported for the first time. The considered encoders are based on two chains of linearly shaped apertures made on a 3D-printed high-permittivity dielectric material. One such aperture chain contains the identification (ID) code, whereas the other chain provides the clock signal. Synchronous reading is necessary in order to determine the absolute position if the velocity between the encoder and the sensitive part of the reader is not constant. Such absolute position can be determined as long as the whole encoder is encoded with the so-called de Bruijn sequence. For encoder reading, a splitter/combiner structure with each branch loaded with a series gap and a slot resonator (each one tuned to a different frequency) is considered. Such a structure is able to detect the presence of the apertures when the encoder is displaced, at short distance, over the slots. Thus, by injecting two harmonic signals, conveniently tuned, at the input port of the splitter/combiner structure, two amplitude modulated (AM) signals are generated by tag motion at the output port of the sensitive part of the reader. One of the AM envelope functions provides the absolute position, whereas the other one provides the clock signal and the velocity of the encoder. These synchronous 3D-printed all-dielectric encoders based on permittivity contrast are a good alternative to microwave encoders based on metallic inclusions in those applications where low cost as well as major robustness against mechanical wearing and aging effects are the main concerns.
A Combined Measurement Method for Large-Size Aerospace Components
Authors: Zhou Zhilong , Liu Wei , Wu Qiong , Wang Yuxin , Yu Binchao , Yue Yi , Zhang Jiabo
Published: August 2020

Automated and high-accuracy three-dimensional (3D) shape measurement is required in quality control of large-size components for the aerospace industry. To eliminate the contradiction between global measurement and local precision measurement control in 3D digitalization for the key local features of the large-size components, a combined measurement method is proposed, including a 3D scanner, a laser tracker, and an industrial robot used as an orienting device, to achieve high-accuracy measurement. As for improving the overall measurement accuracy, an accurate calibration method based on coordinate optimization of common points (COCP) and coordinate optimization of global control points (COGP) is proposed to determine the coordinate systems. Firstly, a coordinate optimization method of common points (COCP) is recommended. Then, a coordinate optimization method of global control points (COGP) based on the angular constraint is proposed for minimizing the measurement errors and improving the measurement accuracy of the position and orientation of the 3D scanner. Finally, a combined measurement system is established, and validation experiments are carried out in laboratory within a distance of 4 m. The calibration experiment results demonstrate that the max and mean errors of the coordinate transformation have been reduced from 0.037 and 0.022 mm to 0.021 and 0.0122 mm. Additionally, the measurement experiment results also show that the combined measurement system features high accuracy.
Experimental Investigation of the Physical Properties and Microstructure of Slate under Wetting and Drying Cycles Using Micro-CT and Ultrasonic Wave Velocity Tests
Authors: Ma Junwei , Niu Xiaoxu , Xiong Chengren , Lu Sha , Xia Ding , Zhang Bocheng , Tang Huiming
Published: August 2020

Cyclic wetting and drying processes have been considered as important factors that accelerate the weathering process and have deteriorative effects on rock properties. In the present study, a fully nondestructive and noninvasive testing approach utilizing micro-CT and ultrasonic wave velocity tests was employed to investigate the microstructure of slate under wetting and drying cycles. We studied variations in the physical properties, including the dry weight and the velocities of P- and S-waves versus the number of wetting and drying cycles. The internal microstructural distributions were visualized and quantified by the 3D reconstruction and hybrid image segmentation of CT images. The degree of deterioration caused by wetting and drying cycles was reflected by exponential decreases of physical properties, including dry weight and velocities of the P- and S-waves. Parameters relating to the microfracture diameter, volume, etc. were quantified. The nondestructive and noninvasive testing approach utilizing micro-CT and ultrasonic wave velocity tests has potential for the detection and visualization of the internal microstructure of rock under wetting and drying cycles.
Gender and Language: A Review on the Use of Language by Male and Female University Students
Authors: KARA Gökçen
Published: August 2020

Language is socially constructed and used as a powerful means of repression, and language has an important place in the struggle of male/female classes, which is the biggest class struggle. Since gender is an ideology, its language is constructed both socially and universally. Since the dominant ideology was patriarchal, the woman remained within the framework of the discourse determined by patriarchy. This patriarchal society makes the language, the object of man. This order that makes women passive takes them under the dominance of a language that is shaped by men. Based on this order, feminist linguists pointed out that women had to live in a language that was produced by men, which prevented them from expressing themselves. Language is such a strong and deep structure that even when women start to take part in the public arena, They to do it through a male dominant language.This study aims at investigating gender differences in language. The study consists of two parts: theory and practice. The first section covers gender and language theories. In the second section, the speech analysis method was used to determine the differences between female and male language. The participants, consisting of 16 university students, were divided into groups of 4 people and each group was interviewed separately. The evaluation of speech recordings is based on the work of Jennifer Coates. When the speech analysis data were examined, it was revealed that there were significant differences in speech between the female and male participants.
Potensi Ampas Tebu Sebagai Adsorben Logam Berat Cd, Cu dan Cr
Authors: Tasanif Rusmani , Isa Ishak , Kunusa Wiwin Rewini
Published: August 2020

Penelitian ini bertujuan untuk mengetahui daya serap arang aktif dari ampas tebu dan kondisi optimum arang aktif dalam mengadsorpsi ion logam berat Cd, Cu dan Cr dengan tiga variasi yaitu variasi massa, variasi konsentrasi dan variasi waktu kontak. Limbah ampas tebu memiliki kandungan selulosa yang mampu untuk mengadsorpsi adsorben. Preparasi ampas tebu meliputi pembuatan arang ampas tebu, pembuatan arang aktif secara aktivasi kimia dengan menggunakan larutan HCl, arang aktif yang diperoleh dikarakterisasi meliputi uji kadar air, kadar abu serta analisis gugus fungsi menggunakan Instrument Fourier Infrare (FTIR),dan analisis morfologi arang aktif menggunakan Scanning Electron Microscope (SEM). Aplikasi arang aktif digunakan sebagai adsorben logam berat Cu, Cd, dan Cr dengan menggunakan Spektrometri Serapan Atom (SSA). Berdasarkan hasil penelitian menunjukan bahwa kemampuan daya serap adsorpsi arang aktif pada fariasi massa untuk logam Cd, Cu dan Cr diperoleh berat optimum optimum 2,5 g dengan daya serap masing-masing logam adalah  Cd 0,31 mg/g, Cu 0,31 mg/g, dan Cr 0,31 mg/g, Variasi konsentrasi ion logam Cd dan Cu dan Cr dengan daya serap adsorpsi mencapai kondisi optimum pada daya serap adsorpsi mencapai kondisi optimum pada konsentrasi konsentrasi 2 mg/L dengan daya serapan masing-masing logam adalah Cd 0,19 mg/g, Cu 0,19 mg/g dan Cr 0,19 mg/g. Penyerapan optimum logam Cd, Cu dan Cr dengan massa adsorben 1 g adalah mengadsorpsi Cd 0,7981 mg/g, Cr 0,7995 mg/g sementara untuk logam Cu 0,755 mg/g.
Using Military Strategy to Teach Marketing Strategy:
Preparing Students for the Global Economy
Authors: Phillips Diane , Phillips Jason
Published: August 2020

Young Americans have a distinct knowledge deficit regarding history, culture, and geography (Hess, 2008; National Geographic, 2006) that is so severe that they “lack even the most basic skills for navigating the international economy” (National Geographic 2006, p. 7). This manuscript provides an outline for a marketing strategy course that is designed to address these deficits. By applying concepts from military strategy to marketing strategy – with a strong emphasis on historical and geographical literacy – students achieve a deeper understanding of marketing strategy and a more flexible use of strategic principles across a variety of contexts, time frames, and national boundaries.
Self-employment and Entrepreneurship Profile
Authors: Lira-Mejía María Carmen , García-Sandoval Evangelina
Published: August 2020

The current labor market is characterized by its complexity in the lack of sources of formal employment and added to it, the difficulty that young people, women, the disabled, immigrants and all those over 40 have to find a job stable in any part of our society seeing itself in the need of self-employment. Therefore, the self-employed person is the person who has decided to become their own boss, charging for what they work, generating income that goes directly to their pockets, allowing them not to have intermediaries or companies involved in taking their decisions that They allow you to fulfill all the responsibilities that this economic activity implies. Therefore, the purpose of this research is to identify the profile of entrepreneurship in individuals who are self-employed in order to obtain information that allows identifying, understanding and considering some action strategies that may contribute to the strengthening of self-employment in municipalities of San Luis de la Paz, Dolores Hidalgo and San Diego de la Unión belonging to the state of Guanajuato.
Proposal for a model for the development of medium sized urban solid waste Recycling companies, in the municipality of Centro Tabasco
Authors: Mendoza-Wilson Ángela del Carmen , Pérez-Pérez Iris Cristel , Eliseo-Dantés Hortensia , García-Reyes David Antonio
Published: August 2020

The valuation of urban solid waste consists of the specific transformation of waste considered as waste, through prior treatment, into reusable resources. In this way, the valuation of Urban Solid Waste is achieved through the processes of reuse, reduction and recycling as well as the collection of them, to transform the traditional management of this waste into integrated systems in a sustainable and friendly way with environment. This document presents an overview of the reality experienced by companies engaged in collection and recycling in the municipality of Centro in the state of Tabasco, to perform a comprehensive analysis of productivity in the current reality that allows obtaining a proposal for development that may be applicable to increase productivity in accordance with the current context, observing in detail the current conditions and taking a prospective of the expected situation in the near future of these companies in the municipality of Centro
Financial impact of foreign exchange entering the state of Guanajuato
Authors: Gómez-Bravo María De La Luz , Gomez-Bravo Jessica Margarita , Andrade-Oseguera Miguel Ángel , Barcenas-Puente José Luis
Published: August 2020

This work is focused on the financial impact that the state of Guanajuato has for the dozens of families that depend on the currencies sent by their relatives who are in the United States of America since these are the ones that reactivate the economy of the 46 municipalities of the state, the Currencies are almost 90% of the sources of income for families in the state. The Bank of Mexico reported that in the first half of the year more than One Thousand Two Hundred million dollars arrived, then approximately 600 million dollars are arriving in the state per quarter, this money that is sent by migrants has been destined to the basic needs of their relatives a 70% is used in food the other 30% is used in health and housing modifications. This places the state of Guanajuato in 3rd place of migrants to the neighboring country, the currencies for the state represent 6% of the Gross Domestic Product GDP of the state
Production of seven varieties of tomato (Lycopersicon esculentum Mill.) pruned to one and two stems under greenhouse
Authors: Vargas-Espinoza Everardo , Gaytán-Ruelas Marina , Calderón-Ruiz Alberto , Morales Félix Verónica De Jesús
Published: August 2020

The experiment was conducted from May to August 2018 at the Technological University of the Southwest of Guanajuato (UTSOE) in a randomized complete block design with three repetitions, in greenhouse 1 of 700 m2 of the Sustainable and Protected Agriculture Career; with the purpose of evaluating the effect of pruning at one and two stems per plant, on yield, fruit weight and plant variables in seven varieties of saladette tomato produced under greenhouse and in hydroponics. The varieties evaluated were: Natalie, USATX 12227, USATX 9934, Juan Pablo, USATX 24019, USATX 16117, USATX 15538, all established at a density of 31,250 plants or stems per hectare. Pruning at two stems per plant produced the highest yield in the USATX 16117, USATX 9934 and Natalie varieties, producing more than 2.3 kg per plant after six weeks of harvest. For the fruit weight, the USATX 9934 variety with two stems, was the one that produced fruits of greater caliber, being one of the three varieties with the highest yield. For the plant height, the USATX 24019 variety with one stem was the one with the highest height three months after the transplant.
Análisis de la soldadura aplicada en el ZSB Trager VW SUV Tiguan (soporte zsb)
Authors: Medina-Mendoza José Antonio , Herrera-Reyes Naieli
Published: August 2020

Welding is an important process because it provides a permanent bond and the welded parts become a single unit. When joining two metals a joint (welded joint) is created where they will have certain characteristics, as well as if it is not the application of the correct form possibly discontinuities will remain. In any welding process, defects may occur, the main thing is to ensure that the penetration depth of the weld is correct and the accuracy of the performance of the functions to be performed. A company from Aguascalientes dedicated to the manufacture of die-cut, machined and welded parts has requested that an analysis to the welding applied to a piece that has sectioned it into 8 parts which contain the welding points required to form the structure of an armrest support. The study was carried out by means of a macro metallography where the main characteristic that was requested was exposed and that is the depth of the weld. The results reflect that the welding process is very dispersed and requires control of its parameters. 62% of the measured data complies with what is specified in VW 01106-1 edition 2015 - 04 with a minimum depth of 1.0 mm. The detail of this data can be reviewed within this report
Elaboración de ladrillos con merma de una empresa que fabrica espumas reticuladas
Authors: Martín-Del Campo Guadalupe , Hernández Gabriela
Published: August 2020

A proposal was developed to make bricks based on ground shrinkage of a company that is dedicated to the manufacture of cross-linked foams, the process consisted of first establishing the dimensions according to what is currently in the market, a reference target was determined with concentrations similar to an artisanal brick, immediately replacing the white concentrations for test A were 40% of tepojal, 30% of cement, 20% of sand and 10% of shrinkage and test B of 45% of Tepojal, 35% sand, 20% depletion, to evaluate the technical feasibility in the elaboration of the specifications of NMX-C-441-ONNCCE, such as compressive strength, water absorption and dimensions, as well as The density of the elaborated bricks, which was obtained as a result of that of test B is very viable for non-structural use, that is to say dividing walls, since it supports a load of 1000 kg, they are efficient to place them at weathering since the percentage of water absorption is 4%, as well as the economic feasibility, with a cost of $ 13.1.
Manifestaciones y Capacidad de Afrontamiento del Estrés Académico en Estudiantes de la Facultad de Psicología y Terapia de la Comunicación Humana (FPYTCH) del Estado de Durango
Authors: Fernández-Mojica Leticia , Ríos-Valles José Alejandro , Soto-Rivera Jesús Abraham , Vázquez-Ríos Elda Raquel
Published: August 2020

In higher education, students are susceptible to the manifestation of stress. Objectives: to determine the presence of academic stress in psychology students of the FPYTCH; Identify the main stressors in the participants of the psychology career of the FPYTCH. Methodology: This investigation was non-experimental, exploratory, observational, by survey, cross-sectional and descriptive, in a non-probabilistic sample obtained by accident and for convenience, after signing an informed consent. Procedure: 122 students participated in the semesters of 1st, 2nd, 3rd, 7th and 8th grade, to whom the academic stress questionnaire was applied. For statistical processing the spss software version 20.0 was used. Contribution: The Cronbach Alpha of the analyzed data was 0.94. Of the 29 variables analyzed, only two showed that there is almost always academic stress which are: 1) teacher evaluations and 2) the type of work requested by teachers. Therefore, it is considered that there is little presence of variables with academic stress, and therefore it can be considered that students have a good capacity to face the academic environment.
Estrategias didácticas en un entorno universitario como apoyo a la educación presencial
Authors: Neri-Vega Jovita Georgina , Quezada-Moreno Maribel , Cortés-Álvarez Yolanda , González-Neri Aarón Iván
Published: August 2020

This work presents research related to the learning strategies used in a university environment in face-to-face education, the strategies mentioned are the active master class, the case study, the debate, the game of roles and project-based learning. Methodology: A descriptive design was used, carrying out data collection through the "University Students Learning Strategy Assessment Questionnaire". Results: Students have enough learning strategies to achieve the objective of their university studies successfully. In addition, there is acceptance by students of the implementation of the various strategies in a face-to-face course, as it allows them to address the issues using the strategy that allows better learning. Conclusions: Given the process of applying the educational model in Higher Education, learning environments should be created that facilitate innovation and student participation in the teaching-learning process, considering both the component teaching as the human dimension. In in-person students, the results demonstrate better information storage skills.
Modelo metodológico para la educación ambiental a partir del museo de ciencias
Authors: Sánchez-Ramos Eugenia , Zárate-Negrete Laura Elena
Published: August 2020

The objective of the research is to know the benefits offered by the Science Museum in environmental education at the basic educational level and how to integrate through workshops into the formal curriculum. Methodology: In the present documentary review work, the benefits of learning through museums and how they potentiate the knowledge acquired in the child population in environmental education are exposed. A methodological model based on three main axes for environmental education is presented: Contextualization, Awareness and Action. Contribution: Formal education, therefore, must contemplate external learning spaces to reinforce and / or expand knowledge. In this sense, the dissemination of science takes an important role since it is through activities outside the academic program where what is learned in the classroom takes on meaning in everyday life and practical situations. The foregoing makes it necessary to have new educational strategies to understand and seek different solutions that counteract environmental deterioration of our time, using environmental education as a basic tool for people to become aware of the importance of preserving the environment in which they live. find and be able to generate changes in their behavior, values, and lifestyles.
Neurociencia y eneagrama: Reconfigurando los equipos de trabajo
Authors: Linarez-Placencia Gildardo , Espinoza-Castelo Luz María
Published: August 2020

Competitiveness is outside modernity in all sectors of society. The execution of tasks has become too complex due to the problems brought by the integration of globalization as a synonym for competition. Undoubtedly, the way to respond to the complexity of the current environment is through the integration of work teams that can be efficient; And the only way to guarantee success is by supplementing the few personality traits developed with the well-worked skills of other team members. Therefore, this research developed a quasi-experimental study in 62 people; to demonstrate that work teams formed by eneatypes or personality traits, obtained by the enneagram map test, are more efficient than traditional equipment. The main contributions to the knowledge gap of this research are: demystification of the enneagram; demonstrating through a quantitative study that the participants obtain better results when working in teams formed with enneagram; participants have a positive perception about enneagram; and using the tools of neuroscience it is proved with physiological data that the theoretical precepts of enneagram are correct.
Sistema web para gestión de estadías profesionales para TSU e Ingeniería
Authors: Herrera-Cruz Joel , Galicia-Escalante Alejandra
Published: August 2020

Professional stays allow students to enter the workplace quickly and acquire knowledge to improve their professional experience. A software tool was developed that allows to manage the process of professional stays of the students of the TSU career and engineering of Information and Communication Universidad Tecnologica del Valle de Toluca, which allows to help improve the care of the academic advisors towards the students to be able to take control of: . 1st and 2nd stay evaluations by academic advisor and external advisor -To be able to upload the stay memories to the online platform
- Keep statistical reports on official formats of agreements between school-company-student - Statisticians of the skills that students perform in professional stays to be able to know what is the field where there is more demand and what technologies are currently being used in the industry.
- Keep track of the activities that students perform in companies. All of the above with the purpose of seeing the needs of organizations and adapting the knowledge taught in class so that students remain competitive and can enter the world of work.
Desarrollo de prototipo de estación de maquinado CNC
Authors: Jara-Ruiz Ricardo , Rodríguez-Franco Martín Eduardo , López-Álvarez Yadira Fabiola , López-Olmedo Leonardo Joaquín
Published: August 2020

In this paper a CNC machining station (Computerized Numerical Control) is developed for its later integration into a manufacturing cell prototype, considered as a mechatronic system. For this, it is assumed the task of carrying out the mechanical and control design of a CNC vertical machining center, with the sole objective of machining parts with specific characteristics from material removal method. The development and design of a CNC machining station began with the manufacture of mechanical structure from rigid and suitable materials for its feasible construction; 3D printing of parts was necessary for fastening stepper motors used and its respective control was achieved by using Arduino software and hardware platform and Universal Gcode Sender, in conjunction with a stepper motor control module. Subsequently, necessary adjustments and programming are made to carry out corresponding functional tests and to ensure adequate machining of required parts, which marks continuity of integration process of this station to a manufacturing cell prototype.
Experiencia en la Formación y Operación del Cuerpo Académico ITESI CA-017 Ingeniería de Software
Authors: Torres-Frausto David Antonio , Villegas-Téllez Rodrigo , Lozano-Vázquez Ángel Gerardo
Published: August 2020

The purpose of this article is to present the experiences obtained in the formation of the Research Group ITESI CA-017 of Software Engineering, which is formed with professors of the Computer Engineering and Computer Systems Engineering from the Instituto Tecnológico Superior de Irapuato. Largely, the path taken by the members of the academic body has been based on the sense of responsibility and commitment that each one has adopted; this has allowed the creation of an environment of trust suitable for collaboration and teamwork. As part of the experience that is shared in this work, is mentioned from the integration, the procedure for obtaining recognition as a Research Group in Training by PRODEP, the incorporation of new members; finishing in the distribution of work and collaboration in research projects and generation of publications for participation in national and international forums. The propuse of the presented experience is to help other professors integrate as research groups and collaborate with each other; and even with the Research Group ITESI CA-017 Software Engineering.
Severe Head Injury Sequelae caused in humans
Authors: Cortés-Alvarez Yolanda , Estrella-Velázquez Rafael , González-Neri Aarón Ivan , Maribel Quezada-Moreno
Published: August 2020

This research points out how valuable the brain in humans is, it indicates from the definition of the word brain, of the nervous system, composition of the skull, parts of the brain, responsibilities of the brain, actions to keep the brain in good shape, the power that he has the brain and the senses that he indicates himself. There is a case study of an accident that caused a severe craniocerebral trauma teacher and the sequelae that will already be part of her teacher's daily life and the knowledge that these sequelae may continue to appear during the 3 years of the accident. It also presents the progress that has been achieved over 10 months of recovery, this with the aim of creating awareness in people and understanding how important the brain is to continue living in this magnificent world.
Harassment among workers in a teacher training institution
Authors: Estrada Gómez Miguel Angel
Published: August 2020

Harassment in schools is a global problem, it is worrying that education workers are doing so and that there is really little research on this type of harassment. This study has as main objective to determine the measure which the harassment between workers of the education in an institution of superior level of Mexico appears. The subjects of study were a total of 63 workers, who develop different functions. The methodology that guided the research was: the quantitative approach; A hypothetical deductive method; Non-experimental and transverse design; As well as a descriptive correlation. The technique used was the questionnaire, which was designed exprofeso and had a reliability of Alfa de Crombach .971. Concerning the prevalence of harassment among workers is high (x ̅ = 1.6081, s = .5939) compared to other research reports from different countries.
Financing in strategic areas for the competitiveness of commercial companies
Authors: Aguilar-Pérez Esmeralda , Pérez-Mejía Salvador , Irigoyen-Arroyo Luis Ernesto
Published: August 2020

This is a research (cross-sectional, non-experimental quantitative approach) based on a survey, of a sample for convenience of 365 micro, small and medium-sized commercial enterprises (MSMEs). The objective of the present was to identify the association that exists between the financing and the competitiveness of the MSMEs of the commerce sector, for which the correlations were determined using the Stata software of the 3 analyzed variables (sales, quality and environmental management) with a level of 5% significance, with the results obtained, the correlation map of the 3 variables was prepared. Therefore, it is stated, what is the degree of correlation that exists between the financing applied to the areas of (sales, quality and environmental management) and the competitiveness of the SMEs of the commerce sector? The study reveals that the MSMEs, show a correlation of 0.9917, 0.8971, and 0.9220 in the variables of sales, quality and environmental management respectively, which means that the MSMEs that used the financing resources in the sales areas, achieved a competitiveness greater than those that used them for the quality area and that financing environmental management contributes to the competitiveness of the company.
Implementation of the lean ergonomics approach to process performance improvement
Authors: López-Acosta Mauricio , García-Vilches Susana , Velarde-Cantú José Manuel , Chacara-Montes Allán
Published: August 2020

Actually market is subject to constant change which forces organizations to innovate with new strategies that provide greater productivity to maintain a competitive advantage, one of the flexible tools used are Lean systems. However, in most of the improvements registered in these systems, the non-ergonomic elements have not been considered as waste, which have high costs for companies. This document presents an approach to integrating Lean systems with Ergonomics, the main tools used were Value Stream Mapping, SIPOC, Kaizen, REBA Method and NIOSH. As a result, a risk identification was obtained in 86% of the 26 activities of three processes analyzed, mainly by postures, manual lifting of loads and repetitiveness, with the improvements developed, the 25 controlled risks were reduced high to medium or low and obtained an average reduction of 32% in the cycle time of operations, making each process more efficient.
Analysis of financial management for decision making in medium-sized enterprises in Ciudad Juarez, Chihuahua
Authors: Mejía-Hernández Marisela , Castillo-Galeana Abelardo , Durán-Ortiz Martin Joel , Vega-Márquez Fátima
Published: August 2020

The objective of this research was to analyze the financial management in medium-sized enterprises in Ciudad Juarez, Chihuahua. For this, a quantitative methodology of descriptive non-experimental transactional design was used. Medium-sized businesses from the commercial and industrial sectors, established in Ciudad Juarez, Chihuahua, were considered as the unit of analysis. 87 businesses were identified with these characteristics. The fieldwork was completed with 31 medium-sized businesses, a questionnaire validated by experts was implemented and applied to the general administrators of each business. The results show that medium-sized businesses have an efficient financial management due to their low level of debt and completion of investment projects, however, these projects are primarily financed by partner contributions and accumulated profits. Thus, to improve the financial management in medium-sized businesses external financing is recommended through bank loans or the stock exchange market, likewise, the financial resources obtained should be allocated mainly for investment projects previously analyzed.
SMEs and social responsibility a holistic approach
Authors: Biviano-Pérez Emma , Sosa-Larrainzar Evelyn , García-Sánchez Avelina
Published: August 2020

The issue of Social Responsibility in companies has a lot of its characteristics, even though it is a subject that belongs to every entity, it cannot be promoted in the same way nor do the results have the same impact. Discovering the correct form implies its observation from a holistic point of view since it goes far beyond just taking care of the external environment but also the internal one. Each of the elements that comprise it is part of that economic unit and therefore it is not correct to divide the whole. In this case, the Human Element is considered in the first instance, secondly, the Financial Resources and thirdly the Base Systems or processes with which small and medium-sized enterprises (SMEs) operate. The purpose of this study is to demonstrate the importance of considering all the elements of an organization to promote corporate social responsibility, identify the actions carried out through daily interaction in the life of the entity and also the existing interdependence to achieve positive effects. . Likewise, the microentrepreneur's perspective is shown before the great challenge of adopting this culture. In the first part, the general characteristics of the SMEs are identified, then the results corresponding to a phase of a qualitative, descriptive investigation, carried out on a random sample of organizations located in the Northeast Zone of the city of Puebla, are presented through the collection of data in situ.
Intelligent conditioning for the intensive production of tilapia in the southern zone of the State of Mexico
Authors: De Anda-López Rosa María , Aguirre-Aranda Rodolfo , Sánches-Salinas Agripín , Jaramillo-Plata Horacio
Published: August 2020

Fish farming is a fundamental sector of the economy for several communities. Traditionally, the processes inherent to this activity, such as the feeding of the fish, the replacement of water, the control of temperature, the level of ammonium, are carried out manually and empirically; However, in recent years they have begun to incorporate technological tools for their automation. In the present work we seek to integrate intelligent and separate control systems that exist in the market to generate a single intelligent control system, with the ability to control temperature, ammonia, water clarity, food, in such a way that is presented as a flexible and integrated production process, that meets the requirements of aquaculture health, this system should provide, to small producers in the southern area of the State of Mexico, the certainty that your product meets specifications and standards for human consumption. With this study new opportunities for the application of technologies, especially those of low cost, are envisaged, so that they are accessible to the greatest number of fish farmers and their use guarantees the improvement in the processes carried out. It also highlights the importance that the use of alternative energies can have, to make the most of natural resources and minimize the environmental impact.
Weight gain in lambs, supplemented with a commercial food al 12% protein
Authors: Lucio Rodolfo , Sesento Leticia , Bedolla Jose Luis Carlos , Cruz Angel Raul
Published: August 2020

The objective of this work was to determine the weight gain in sheep meat, under an intensive feeding system in lambs of the Dorper breed. Thirteen lambs with an initial average live weight of 11.25 ∓ 5 kg were used. The food was offered ad livitum throughout the day. Systematic measurements of the weight gain of the sheep were carried out. The results obtained for the corresponding variable of the voluntary consumption of dry matter, shows that at the beginning of the experiment the animals had a dry matter consumption of 206.25 g / ovine; However, as they were growing their dry matter consumption was 292 g / ovine, with a linear increase until the sixth week. The highest weight gain per day was obtained between month 1 and month 2, with the best feed conversion rates observed here. With the obtained results it is concluded that the voluntary consumption of dry matter was 206.5 g / ovine-1, with an average daily weight gain of 470 g. and with acceptable conversion rates and food efficiency.