bluuebunny/crossref_metadata_2025 huggingface dataset:
Modified constant modulus algorithm based on bat algorithm
Authors: Xu Tongtong , Xiang Zheng
Published: February 2021

In this work, modified constant modulus algorithm based on bat algorithm is proposed for wireless sensor communications systems. The bat algorithm is a swarm intelligence optimization algorithm, which mainly used to solve optimization problems. The proposed algorithm focused on modified constant modulus algorithm, which is also applicable to the constant modulus algorithm. The error function of blind equalization algorithm is used as the evaluation function of the bat algorithm, and then the initial value of the weight vector is calculated adaptively by the bat algorithm. Theoretical analysis is provided to illustrate that the proposed algorithm has a faster convergence speed than the original one and is suitable for almost all blind channel equalization algorithms. The simulation results support the newly proposed improved algorithm. The proposed algorithm could be applied to some more complex wireless channel environments to improve the reception performance of sensor communication systems.
Distracted driver detection using compressed energy efficient convolutional neural network
Authors: Alzubi Jafar A. , Jain Rachna , Alzubi Omar , Thareja Anuj , Upadhyay Yash
Published: February 2021

The availability of techniques for driver distraction detection has been difficult to put to use because of delays caused due to lag in inferencing the model. Distractions caused due to handheld devices have been major causes of traffic accidents as they affect the decision-making capabilities of the driver and gives them less time to react to difficult situations. Often drivers try to multitask which reduces their reaction time leading to accidents, which can easily be avoided if they had been attentive. As such, problems related to the driver’s negligence towards safety a possible solution is to monitor the driver and driving behavior and alerting them if they are distracted. In this paper, we propose a novel approach for detecting when a driver is distracted due to in hand electronic devices which is not only able to detect the distraction with high accuracy but also is energy and memory efficient. Our proposed compressed neural got an accuracy of 0.83 in comparison to 0.86 of heavyweight network.
Research on hesitant fuzzy clustering method based on fuzzy matroids
Authors: Xiao Hui-Min , Wang Mei-Qi , Cao Yan-Li , Guo Yu-Jie
Published: February 2021

In this paper, to improve the situation of singleness of selecting results in hesitant fuzzy set decision-making and expand the range of choices for decision makers, we construct a hesitant fuzzy set clustering algorithm combined with fuzzy matroid operation. The algorithm synthesizes the r-cut set, fuzzy shrinking matroids in the fuzzy matroids and the operational properties of the fuzzy derived matroids, the r value also is used to connect the two types of fuzzy matroids to form a clustering algorithm. Finally, we apply the algorithm to the hesitant fuzzy set decision-making of job seekers choosing recruitment websites, each recruitment website as an optional scheme is divided into three categories of excellent to inferior schemes to provide job seekers with ideas and methods for favorably selecting recruitment websites.
Water wave optimization algorithm for autonomous underwater vehicle path planning problem
Authors: Yan Zheping , Zhang Jinzhong , Zeng Jia , Tang Jialing
Published: February 2021

In this paper, a water wave optimization (WWO) algorithm is proposed to solve the autonomous underwater vehicle (AUV) path planning problem to obtain an optimal or near-optimal path in the marine environment. Path planning is a prerequisite for the realization of submarine reconnaissance, surveillance, combat and other underwater tasks. The WWO algorithm based on shallow wave theory is a novel evolutionary algorithm that mimics wave motions containing propagation, refraction and breaking to obtain the global optimization solution. The WWO algorithm not only avoids jumps out of the local optimum and premature convergence but also has a faster convergence speed and higher calculation accuracy. To verify the effectiveness and feasibility, the WWO algorithm is applied to solve the randomly generated threat areas and generated fixed threat areas. Compared with other algorithms, the WWO algorithm can effectively balance exploration and exploitation to avoid threat areas and reach the intended target with minimum fuel costs. The experimental results demonstrate that the WWO algorithm has better optimization performance and is robust.
Occupational health risk assessment at healthcare institutions: Developing a semi-quantitative risk method
Authors: Chalak Mohammad Hossein , Bahramiazar Ghasem , Rasaee Javad , Fahimi Reza , Anbardan Asghar Noran , Jafari Hossein , Nasab Fatemeh Ramroudi
Published: February 2021

BACKGROUND: Environmental hazards in healthcare institutions affect the quality of patient care as well as personnel and patient safety. OBJECTIVE: The aim of this study was to develop and apply a semi-quantitative risk assessment method to calculate occupational health risk levels with regard to the sensitivities of healthcare institutions. METHODS: The present research was conducted in three phases. In phases 1 and 2, the model was developed using a review of different risk assessment methods, extracting expert opinions (N = 10) through semi-structured interviews, and using the fuzzy analytical hierarchy process (FAHP). In phase 3, in order to validate the proposed method, one of the five public hospitals was randomly selected and a case study comprising 6 sections was performed. RESULTS: A total of 43 health risks were identified and evaluated using the present method, 41.86% of which were at very high levels, 16.27% at high levels, 30.23% at substantial ones, 9.3% at medium and 2.32% at low levels. The highest health risks were found in paraclinical and operating room wards. CONCLUSION: To overcome the shortcomings of the proposed health risk assessment methods, a semi-quantitative method was used in the present study to more accurately calculate the risk levels in the healthcare institutions and also calculate the risk level of each hospital unit. The proposed semi-quantitative method can be used as a tool for assessing occupational health risks as a key element of risk management. In addition, by focusing on an appropriate framework for occupational health risk assessment, specialists in the organization will be able to take significant and effective steps to implement an efficient risk management system.
Vestibular drop attacks in Ménière’s disease
Authors: Pyykkö Ilmari , Pyykkö Nora , Manchaiah Vinaya
Published: February 2021

The aim of the present study was to evaluate the severity of vestibular drop attack (VDA) in Ménière’s disease (MD) and to examine the association between VDA severity and other MD-related complaints. The study used a cross-sectional survey design using an electronic questionnaire. The mean age of participants was 56.7 years, and the mean duration of MD was 12.4 years. Four categories of VDA were identified based on level of severity. VDA occurred in 305 (50.7%) of the 602 patients. Of these, 133 patients (22%) experienced mild VDA (i.e., associated with tripping); 80 (13%) experienced moderate VDA (i.e., associated with fall threat unless they had been able to grab support); and 92 (15%) experienced severe VDA (i.e., patients fell to the ground, as in a classical Tumarkin attack). In 70%of participants, VDA occurred less than once a week. VDA lasted for only a few seconds in 90%of participants. 87%reported single attacks, whereas 13%experienced VDA in clusters. VDA was associated with visual auras, reduced quality of life, poor postural control, and fatigue. Approximately half of MD patients experience VDA with varying degrees of severity. If VDA causes falls or near-falls, the attacks should be appropriately treated.
DEBISim: A simulation pipeline for dual energy CT-based baggage inspection systems1
Authors: Manerikar Ankit , Li Fangda , Kak Avinash C.
Published: February 2021

BACKGROUND: Materials characterization made possible by dual energy CT (DECT) scanners is expected to considerably improve automatic detection of hazardous objects in checked and carry-on luggage at our airports. Training a computer to identify the hazardous items from DECT scans however implies training on a baggage dataset that can represent all the possible ways a threat item can packed inside a bag. Practically, however, generating such data is made challenging by the logistics (and the permissions) related to the handling of the hazardous materials. OBJECTIVE: The objective of this study is to present a software simulation pipeline that eliminates the need for a human to handle dangerous materials and that allows for virtually unlimited variability in the placement of such materials in a bag alongside benign materials. METHODS: In this paper, we present our DEBISim software pipeline that carries out an end-to-end simulation of a DECT scanner for virtual bags. The key highlights of DEBISim are: (i) A 3D user-interactive graphics editor for constructing a virtual 3D bag with manual placement of different types of objects in it; (ii) An automated virtual bag generation algorithm for creating randomized baggage datasets; (iii) An ability to spawn deformable sheets and liquid-filled containers in a virtual bag to represent plasticized and liquid explosives; and (iv) A GPU-based X-ray forward modelling block for spiral cone-beam scanners used in checked baggage screening. RESULTS: We have tested our simulator using two standard CT phantoms: the American College of Radiology (ACR) phantom and the NIST security screening phantom as well as on a set of reference materials representing commonly encountered items in checked baggage. For these phantoms, we have assessed the quality of the simulator by comparing the simulated data reconstructions with real CT scans of the same phantoms. The comparison shows that the material-specific properties as well as the CT artifacts in the scans generated by DEBISim are close to those produced by an actual scanner. CONCLUSION: DEBISim is an end-to-end simulation framework for rapidly generating X-ray baggage data for dual energy cone-beam scanners.
Development of vibration system for decreasing of intensity of steel ladle outlet channel tightening
Authors: Eron’ko S. P. , Ponamareva E. A. , Tsykhmistro E. S.
Published: February 2021

The problem of tightening of outlet channel of steel ladle still remains relevant at present. A review of scientific and technical studies, aimed at elaboration of methods to keep the channel flow section constant presented. An analysis of deposition forming mechanisms on walls of outlet channel of steel ladle was done. To prevent their formation it was proposed to apply a vibration impact on the ladle shutter. Using simulation studies and specially elaborated methodology, the degree of influence and frequency of amplitude oscillations, acting along the ladle channel, on increasing speed of layer thickness formation on its walls and number of tearing off hard particles was established. To evaluate intensity of elastic waves absorption by the refractories of ladle shutter during vibration impact on it, a natural experiment was done. As a result of the experiment an initial information was obtained for determining parameters of oscillation process to guarantee effective functioning of the proposed casting facility. A necessity was established to account tenfold decrease of vibration acceleration during propagation of elastic wave along the casting channel from the lower end of collector nuzzle to the upper end of the ladle casting nozzle. Results of the complex studies became base of technical solution at elaboration of design of the ladle shutter. The elaborated shutter is equipped by a system of exciting vertically-directed oscillations, promoting decreasing intensity of hard particles sticking on the walls of the outlet channel. The design of the perfected ladle shutter and general view of its test model shown, which is equipped with the vertically-directed oscillations exciting system. Depending on capacity of the steel ladles, which can be from 100 to 300 t, their shutters can be equipped with one or several pneumatic plunger vibrators. Each of the plunger having the mass of 0.8 kg, can develop an impact force up to 300 N when supplying into its working cavity compressed air of 0.2 MPa pressure at flow rate 150 l/min. Industrial tests of the modernized shutter in a foundry shop of Yasinovatsky machine-building plant were done.
Dynamics of exit section of automatic mill of pipe rolling line
Authors: Rakhmanov S. R.
Published: February 2021

Nonuniformity of pipe wall thickness is one of significant indices, determining quality of hot-rolled seamless pipes. One of the reasons of increased nonuniformity arising is dynamics of exit section mechanisms of pipe rolling line (PRL). Results of study of mandrel holding mechanism dynamics of PRL presented. Dynamic models of exit section, accounting parameters of technological process and inertia of a rolled hollow billet elaborated, which enabled to determine the character of dynamic processes at the exit section of PRL automatic mill. Differential equations of exit section elements motion at the exit section of PRL automatic mill were made up. The solution of the differential equations system was obtained in a numerical form by application of Runge‒Kutta method for correspondent dynamic models of exit section based on the example of calculations for ТПА-350 automatic mill. The pattern of dynamic processes arising at the exit section was specified at realization of the whole technological process of a hollow billet rolling at automatic mill, taking into consideration alternative action from the side of deformation center and mass of the rolled hollow billet. It was shown, that the specified solution of the task for three advanced dynamic models of mechanical system considerably differs from those of the known mathematical models. It was established, that the dynamics of the mandrel holding mechanism of ТПА-350 automatic mill equivalently form the mechanism of finished pipes geometry forming. Analysis of dynamic models of the mill exit section enabled to select the necessary technological and dynamic parameters of the mechanical system, to determine stable modes of hollow billets rolling at the ТПА-350 automatic mill. Results of the study of dynamics of exit section ТПА-350 automatic mill presented. A scheme of modernization of the exit section ТПА-350 automatic mill proposed, which enables to realize rational modes of operation accounting level of mechanical system dynamics and to control quality (geometric parameters) of the rolled pipes.
Perfection of technology and equipment for heating of steel ladles lining at horizontal stands
Authors: Spirin V. A. , Nikol’skii V. E. , Vokhmintsev D. V. , Moiseev A. A. , Smirnov P. G. , Platashov A. G.
Published: February 2021

To change or repair sliding gates, steel ladles are installed in horizontal position, in which they are heated to keep a working temperature of lining. Peculiarities of a steel ladle heating in horizontal position considered. Description of the lining heating process presented, necessity of elaboration a method of its numeral simulation justified. The method should enable to make studies of influence of various methods of burner location on the ladle cover and torch parameters on efficiency of heating for a particular ladle and time available for the heating. A method of mathematical simulation of heat- and mass-exchange processes of lining heating in nonstationary conditions described. Based on examples of various variants of torch power calculation, dynamics of a ladle walls heating was shown. Results of calculation of temperature distribution over a ladle lining presented, as well as the map of gases flow in the ladle volume for various parameters of torch and heating process stages. Taking into consideration, that calculation costs related to simulation of nonstationary ladle heating are very high, a simplified one-dimensional model of calculation of lining heating process was elaborated. In the model correction factors are used, obtained as a result of numeral simulation. The model enables to make calculations in real time conditions and to use them for control at a practical steel ladle heating in horizontal position at a modern automized heating facility.
PENGARUH HARGA, KUALITAS LAYANAN DAN PROGRAM PROMOSI TERHADAP KEPUTUSAN PEMBELIAN BERKELANJUTAN
Authors: Chasanah Uswatun , Fauzan Muhammad
Published: February 2021

This study examined the effect of price, service quality and promotion on sustainablepurchasing decisions. The sample used was 60 respondents with the criteria ofrespondents who used Mamochi products in Yogyakarta. The data was collected usingnon probability sampling method with purposive sampling technique. The results of thevalidity test with the Pearson correlation criteria> 0.254 (r table), showed that all indicatorswere valid, as well as the reliability test with Cronbach's alpha> 0.6. The results of themediation test show that consumer satisfaction mediates the effect of price on repurchasedecisions, while the quality of service and promotion programs have an effect onrepurchase decisions not mediated by customer satisfaction. As for partial testing of pricevariables, service quality has an effect on satisfaction, while promotion has no effect.Likewise, the variables of price, promotion and customer satisfaction have an effect on repurchasedecisions, while service quality has no effect on re-purchase decisions. For thesimultaneous test results, price variables, service quality and promotion have an effect oncustomer satisfaction.
STRATEGI PENINGKATAN KINERJA DENGAN IMPORTANCE PERFORMANCE ANALYSIS (IPA) DAN ANALISIS STRENGTHS, OPPORTUNITIES, ASPIRATIONS, RESULTS (SOAR)
Authors: Suhartono Suhartono , Putra Cita Rosari
Published: February 2021

Bidkeu Polda D.I. Yogyakara as a work unit for financial development within the Kepolisian Daerah D.I. Yogyakarta is responsible for making the implementation of the financial administration process run smoothly, transparently, accountably and professionally. In order to support the implementation of the achievement of these goals, it is necessary to know the extent of the performance conditions and determine the strategy for improving the performance of the Bidang Keuangan Polda D.I. Financial Yogyakarta. Data analysis in this study used Importance Performance Analysis (IPA) and SOAR. IPA is an analyst by comparing the performance and level of expectations or interests of service recipients as an effort to improve the performance of the service provider organization. Furthermore, SOAR consists of four variables, namely S: Strength, O: Opportunity, A: Aspirations, R: Result. SOAR analysis comes from the Appreciative Inquiry (AI) approach, which is basically a strategy based on the positive things that a business or organization has to develop and make it its main advantage.Based on the results of research with IPA and SOAR, it is concluded that the strategy to improve the performance of the Bidang Keuangan Polda D.I. Financial Yogyakarta is a strategy: (1) Improving the quality of work results and timeliness of reporting; (2) Making efforts to add and maintain the facilities and infrastructure to office support ; (3) Maintaining the friendliness of personnel in service; (4) Increasing the discipline of personnel working time; (5) Developing personnel potential; (6) Increase the work motivation of personnel; (7) Striving for the regeneration of Bidkeu Polda D.I. Yogyakarta.
PENGARUH PENGANGGARAN, PROSEDUR KALIBRASI, DAN PRAKTIK SUMBER DAYA MANUSIA TERHADAP KEPATUHAN PELAKSANAAN KALIBRASI ALAT KESEHATAN DI PUSKESMAS SE-KABUPATEN GUNUNGKIDUL
Authors: Suprihatin Endang Ertin
Published: February 2021

This study aimed to analyze the effect of budgeting, calibration procedures, and human resource practices on compliance with health equipment calibration. This study used predictive quantitative research. The populations used in this study were 30 health centers in Gunung Kidul, Yogyakarta. The data was collected using questionnaire and analyzed using regression analysis. Before distributing questionnaire, we tested its validity and reliability. Based on the validity test, all items was valid. The reliability test indicated that the questionnaire was reliable. The results of this study showed that there was a significant effect between budgeting, calibration procedures, and human resource practices on compliance with calibration implementation.
PENGARUH STRATEGI PEMASARAN ONLINE DENGAN APLIKASI GOJEK FITUR GOFOOD TERHADAP PENINGKATAN PENDAPATAN USAHA KULINER DI YOGYAKARTA
Authors: Widyayanti Evi Rosalina , Insiatiningsih Insiatiningsih
Published: February 2021

UMKM di Indonesia memberikan sumbangan pendapatan nasional yang cukup signifikan dan semakin terus berkembang seiring dengan pertumbuhan teknologi online. Hal ini menunjukkan bahwa market dari pemasaran melalui online akan semakin besar dan bahkan seamakin menjadi kebutuhan. Dalam penelitian ini diambil 100 sampel dengan menyebarkan kuisionar. Metode yang digunakan untuk adalah metode non probability sampling. Pengumpulan data menggunakan kuesioner yang dan analisis data menggunakan analisis regresi linier berganda. Variabel yang digunakan adalah 6 variabel independent yaitu Pemasaran Hubungan, Saluran komunikasi, Rantai pasokan, Persaingan, Lingkungan Pemasaran dan Bauran pemasaran, dan 1 variabel dependent yaitu Peningkatan Pendapatan Usaha. Dari hasil analisa penelitian di peroleh kesimpulan bahwa Pemasaran Hubungan (X1) t=5,787 memberikan pengaruh signifikan terhadap Peningkatan pendapatan Usaha karena t hitung > dari t tabel. Saluran Komunikasi (X2) t=0,007 berpengaruh sedikit tidak signifikan terhadap Peningkatan pendapatan Usaha karena t hitung < t tabel namun tetap positif. Rantai Pasokan, (X3) t=3.301 memberikan pengaruh signifikan terhadap peningkatan pendapatan usaha karena t hitung > dari t tabel. Persaingan (X4) t=9,211 memberikan pengaruh signifikan pada Peningkatan Pendapatan Usaha karena t hitung > t tabel. Lingkungan Pemasaran (X5) t=-1,143 memberikan pengaruh tidak signifikan pada Peningkatan Pendapatan Usaha karena t hitung < dari t tabel. Bauran Pemasaran (X6) t=0,394 memberikan pengaruh sedikit tidak signifikan pada Peningkatan Pendapatan Usaha karena t hitung < dari t tabel namun tetap positif. F Hitung yang dihasilkan lebih besar dari pada F tabel (F hitung > F tabel) sebesar 522,566 dan F tabel sebesar 3,72 dengan demikian dapat disimpulkan bahwa; H0 = 0 Ha â‰  0 dan Ha diterima karena terdapat hubungan saling memberikan pengaruh secara signifikan antara variable independent terhadap variable dependent yaitu Peningkatan Pendapatan Usaha (Y).
Impact of COVID-19 lockdown on sleep-wake schedule and associated lifestyle related behavior: A national survey
Authors: Ahmed Saleh , Zainab Asmar , Saroya Ammara
Published: February 2021

During the lockdown people were confined at home to obviate further transmission of coronavirus in the community under the strict social restrictions that induced disturbance in circadian driven sleep-wake cycle and imposed the adverse effects on associated lifestyle behavior. This study was a cross-sectional questionnaire-based survey conducted in Pakistan. The survey was conducted from March 13 to 20 March 2020 by circulating the questionnaire form on face-book and G-mail. Form consist on 15 questions related to sleep, meal (first meal, lunch, and dinner time) and screen time (digital media, TV watching time before and during lockdown) which took hardly 5 to 10 minute to complete. Questions related to a sleep disorder, psychiatric diagnosis, drugs' effect on the sleep-wake pattern, and pregnant women are omitted from the study. Total 1144 participants having an age greater than 18 years were assessed through different parameters before and during the lockdown. Survey results indicated that sleep-wake time, three meals time was significantly impede during lockdown which was prominently observed in young people of the age group 19-26 followed by age group of 26-32. The use of digital media was increased in all age groups but more pronounced in males. During the lockdown, first meal and second mealtime are earlier in males as compared to females while dinner time is later in males compared to females before lockdown and same dinner time for both males and females was reported during the lockdown. Findings of this study concluded that complete lockdown generated a discord condition with social and natural cues had raised social jetlag with impeded sleep-wake, mealtime, and excess exposure to screen amid the population. All these variables' effects show differentiation based on gender and age of people. Long and last these findings may aid the people to prepare better for tackling sleep health and related behavior issues during further events (as current covid-19) in future    

Keywords: covid-19 lockdown, sleep onset time, wake-up time, meal timings, digital media exposure.
Virtuális valóság alapú taktikai szimulációs kiképzőeszközök hazai fejlesztési lehetőségei I. rész
Authors: Marlok Tamás
Published: February 2021

Az informatika és mikroelektronika technológiai fejlődésével a virtuálisvalóságeszközök egyre hatékonyabbá válnak, egyre nagyobb beleélést, a valóság egyre pontosabb szimulációját teszik lehetővé. Ezt a technológiát a gazdaságilag fejlettebb államok katonai és rendvédelmi szervezetei már több mint egy évtizede kezdték el alkalmazni különböző területeken. Jelen tanulmányban azt kívánom igazolni, hogy ez a technológia mára elérte azt a fejlettségi szintet és modularitást, amikoralkalmazott kutatások eredményeként olyan saját eszközöket tudunk fejleszteni, amelyek akár nemzetközi szinten is piacképes alternatívát jelenthetnek a magas költségű rendszerekkel szemben, és amelyekkel a kiképzés bizonyos területei forradalmasíthatók. A cikksorozat első részében azoknak a könnyen hozzáférhető termékeknek és technológiáknak jellemzőit vizsgálom, amelyek az ilyen irányú törekvéseket hatékonyan képesek támogatni.
Komparasi Berita Negatif dan Positif Mengenai Covid-19 Di Situs Detik dan Kompas
Authors: Caroline Cintia
Published: February 2021

The paradigm of bad news is good news in journalism reflects that the public is more interested in negative news. Valuable news usually contains conflicts that important for people. Currently, the global health crisis issue caused by Covid-19 virus is being highlighted by media around the world, it is causing chaos because no country is ready to face this problem. Unbalanced news was presented by media in Indonesia and caused public panic, especially by the online media that could indirectly affect the spread of Covid-19. Two popular news sites in Indonesia, Detik and Kompas, provide both bad and good news regarding the Covid-19 pandemic. To find out the comparison of the news presentation from these two sites, this study uses quantitative analysis methods. The results show that Kompas are quite balanced, while Detik tends to present bad news which can indirectly worsen the spreading of Covid-19 in Indonesia.
La correlación del clítico se y las preposiciones a/para en verbos de movimiento intransitivos en el español del siglo xiii
Authors: Eslava Heredia Cristina
Published: February 2021

El artículo2 trata de la alternancia de las preposiciones a/para en la formación de la Meta en construcciones con verbos de movimiento intransitivos del español del siglo xiii . Se hace énfasis en la correlación entre la presencia de un clítico pronominal se y la elección de una preposición directiva como preconfiguración de la Meta: como argumento al elegir a o como no-argumento al elegir para. La elección de para constituiría un paso intermedio de la función del clítico como «habilitador de categoría vacía»3 que se manifiesta en etapas posteriores (p. e. Juan fue al parque/*Juan fue/Juan se fue para el parque/Juan se fue).
TIC y la gestión del conocimiento como elementos determinantes del crecimiento de la PyME
Authors: Valdez Juárez Luis Enrique , García Pérez de Lema Domingo , Maldonado Guzmán Gonzalo
Published: February 2021

Las tecnologías de la información y comunicación (TIC) son un factor determinante para el crecimiento en la pequeña y mediana empresa (PyME) y se han vuelto imprescindibles en las actividades cotidianas de las organizaciones, principalmente en las estrategias de gestión del conocimiento (GC). Además, la actual literatura relaciona a estos indicadores como generadores de crecimiento económico y organizacional, no solo para las grandes, sino también para la PyME. La muestra está conformada por 903 empresas de la región de Murcia, España, y el objetivo principal es analizar la influencia que tienen las TIC sobre la GC y, a su vez, los efectos de las TIC y la GC sobre el crecimiento empresarial. Los hallazgos indican que el uso de las TIC tiene una influencia positiva y significativa en los procesos de GC. La utilización de TIC y GC muestra una influencia positiva en el crecimiento.
Origen y evolución de las actividades y disciplinas deportivas en Aguascalientes en el siglo XX
Authors: Moreno Ramos Víctor , Hernández Zapata Gabriela , Flores F ernández Sara Elizabeth
Published: February 2021

El presente artículo describe el origen y evolución de las actividades y disciplinas deportivas que se practicaron durante el siglo XX en Aguascalientes, y pretende determinar los principales promotores, atletas, el marco jurídico, las instituciones, instalaciones, los clubes deportivos, tanto privados como públicos que se fundaron; así como las acciones y resultados de la política deportiva de tipo público que implementaron las autoridades del estado para el fomento y promoción de las prácticas y disciplinas deportivas. Al respecto, el detonante del inicio de la práctica formal de diversas disciplinas deportivas, de clubes y ligas de béisbol, fútbol, básquetbol, tenis, voleibol, box, atletismo, polo, natación, charrería, lo constituyeron la instalación de los Talleres Generales de Construcción y Reparación de Máquinas y Material Rodante (1897), la American Smelting, La Perla, Jabonera del Centro, en la ciudad de Aguascalientes.
Biomarkers in Toxicology
Authors: Ortiz Martínez Raúl
Published: February 2021

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Herramientas para la enseñanza de la visualización y diseño molecular de metabolitos y macromoléculas
Authors: Hernández Santos Walter Josué , Barrera Figueroa Blanca Estela , Mendoza Francisco Noé , Peña Castro Julián Mario
Published: February 2021

La visualización digital de moléculas y macromoléculas de los sistemas biológicos se utiliza de forma profesional en publicaciones e investigaciones científicas para describir sus propiedades químicas y físicasen tres dimensiones. En el aula, estas herramientas pueden facilitar al estudiante la comprensión de conceptos complejos de la estructura molecular en química y biología. En este trabajo se reporta uncurso de visualización molecular digital, su manual (UNPA, s. f.) y una estrategia de implementación dirigidaa —y probada con— docentes de nivel medio-superior. Con el uso de paquetes de cómputo y bases de datos profesionales de libre acceso o mediante licencias académicas, se logró ilustrar diversos conceptos de química y biología que se enseñan en los programas educativos de los profesores asistentes. Adicionalmente, mediante una estrategia de investigación, los docentes lograron planear, desarrollary exponer imágenes autogeneradas de diferentes biomoléculas de su interés y útiles para su práctica docente.
Bioética y salud pública en la regularización de la marihuana
Authors: Martínez Martínez Kalina Isela
Published: February 2021

Sin Resumen
El transporte de carga y el comercio internacional de los países miembros del TLCAN: Un análisis de elasticidades
Authors: Zamora Torres América Ivonne , Mora Zimbrón Diana Areli
Published: February 2021

El presente trabajo aborda el tema del transporte de carga en el contexto del comercio internacional entre los países miembros del Tratado de Libre Comercio de América del Norte; es decir, México, Estados Unidos y Canadá mediante un análisis de elasticidades con las variables: infraestructura, costos, importaciones, exportaciones y volumen de carga en el transporte carretero. La importancia del tema radica en la sustancial operativa comercial entre los países miembros del TLCAN, que ha provocado una significativa dependencia de la economía mexicana a partir de la firma del mismo. Entre los principales resultados se muestra que las exportaciones mexicanas hacia EE. UU. presentan una elasticidad positiva con relación a la infraestructura, se puede afirmar que los cambios en la red carretera provocan una mayor sensibilidad en el comportamiento de las exportaciones.
El efecto de la autoeficacia y el trabajo colaborativo en estudiantes novatos de programación
Authors: Arévalo Mercado Carlos Argelio , Muñoz Andrade Estela Lizbeth , Gómez Reynoso Juan Manuel
Published: February 2021

El aprendizaje de la programación es complicado para alumnos que inician una carrera relacionada con las tecnologías de información. Se han identificado factores significativos como la experiencia previa, los modelos mentales incorrectos y la habilidad para las matemáticas, entre otros. También se ha identificado una relación estrecha entre el desempeño académico y los procesos cognitivos, metacognitivos y motivacionales. En este estudio se intentó identificar las variables motivacionales y metacognitivas que influyen en los estudiantes universitarios que inician el aprendizaje de la programación. Se utilizó el instrumento MSLQ para recolectar información de una muestra aleatoria de 110 alumnos cursando programación introductoria en la UAA.
Criterios de manejo acuícola para la región Pacífico Central Mexicano mediante análisis multicriterio
Authors: López-Poblete Israel , Godínez-Domínguez Enrique , Mendoza Manuel E. , Tintos-Gómez Adrián
Published: February 2021

La determinación de criterios acuícolas indicados para el desarrollo de la actividad permite identificar capacidades inherentes de los sitios para ser utilizados bajo este propósito. Se utilizó el proceso de análisis jerárquico con el fin de evaluar la importancia relativa de los criterios definidos con base en la opinión de 12 expertos en el tema. Dicho grupo determinó como criterios principales tipo de agua, temperatura, calidad de los organismos, sistema de cultivo, textura de suelo, nivel de tecnología y eficiencia en la administración. Los resultados indican que los criterios con mayor importancia fueron agua con una ponderación de 0.38, temperatura con 0.20 y calidad de los organismos 0.19. La implementación de la técnica del proceso de análisis jerárquico demostró ser útil para la construcción de un índice global de eficiencia para la actividadacuícola, basado en conocimiento experto.
Estrés académico en estudiantes universitarios
Authors: Silva-Ramos María Fernanda , López-Cocotle José Juan , Meza-Zamora María Elena Columba
Published: February 2021

El estrés en los estudiantes de educación superior es una problemática que es necesario estudiar de manera profunda, ya que repercute a nivel físico, emocional y psicológico. El objetivo fue determinar el nivel de estrés en estudiantes universitario mediante un estudio cuantitativo, descriptivo y correlacional en una muestra de 255 estudiantes. Se utilizó el inventario SISCO, ya que permite identificar el estrés en estudiantes de educación superior y posgrado. El procesamiento de los datos se realizó mediante el programa SPSS versión 22 y se consideró lo estipulado en el Reglamento de la Ley General de Salud en Materia de Investigación para la salud. El 86.3% de los participantes presentan un nivel de estrés moderado, se determinó independencia entre el nivel de estrés y el sexo de los participantes (p= .298) y se reporta asociación significativa con el programa de estudios (p= .005).
Nuevo método para simplificar la estimación de la proporción sexual en crías de tortuga marina utilizando datos de temperatura en corrales de incubación
Authors: Sandoval Sarahi , Gómez-Muñoz Víctor Manuel , Porta-Gándara Miguel Ángel
Published: February 2021

La temperatura de incubación en los huevos de tortuga marina determina el sexo de las crías y en los últimos años se ha documentado un sesgo de la proporción sexual hacia hembras, por lo que se propone y comparte un modelo matemático práctico que se desarrolló con el programa MATLAB que utiliza la ecuación de Girondot para estimar la proporción de machos de la nidada. El programa necesita como datos de entrada el registro de la temperatura diario del corral de incubación con un sensor digital similar al del estudio propuesto, así como datos de la bitácora de anidación en archivos Excel como fecha de desove, fecha de eclosión y número de huevos o crías vivas. Este modelo puede ser aplicado en las diferentes especies y playas de anidación. Se presenta un caso de estudio de Lepidochelys olivacea (tortuga golfina) en el campamento tortuguero Playa Ceuta Sinaloa, México.
Asociación entre resiliencia y glucemia en ayuno en adultos con diabetes tipo 2
Authors: Miranda-Félix Patricia Enedina , Buichia-Sombra Félix Gerardo , García-Sarmiento Jorge Luis , Miranda-Cota Guadalupe Adriana , Ortiz-Félix Rosario Edith
Published: February 2021

La diabetes tipo 2 es un grave problema de salud pública por su prevalencia creciente y alta mortalidad, se requiere explorar factores psicológicos que podrían influir en el control de la enfermedad. El objetivo fue determinar la asociación entre resiliencia y glucemia en ayuno en adultos con diabetes tipo 2. Estudio correlacional, muestreo aleatorio simple en 146 adultos que asistían a control de diabetes tipo 2 a una unidad de primer nivel de atención. La media de edad de los participantes fue de 41.7 (DE= 10.5) años, 54.8% fueron mujeres. El modelo de regresión lineal múltiple explicó el 53% de la varianza (F [178667.3]= 24.62, gl= 6, p < 0.001), la resiliencia se asoció con las cifras de glucemia en ayuno (β= -0.67, t= 10.932, p= 0.001). Se concluye que los pacientes con diabetes tipo 2 más resilientes presentaron cifras de glucosa menores, indicando mayor control glucémico.
La economía del compartir (2008-2018): Una revisión de la literatura
Authors: García-Flores Francisco , Madero-Gómez Sergio Manuel
Published: February 2021

La economía del compartir ha emergido como una nueva forma de desarrollar y ofrecer productos y servicios, donde se engloban un conjunto de actividades y acciones con diversas características, junto a ella han surgido también una cantidad de promesas y paradojas. Las nuevas tendencias socioeconómicas y los cambios actitudinales en algunos sectores de la población han llevado a que la economía del compartir adquiera percepciones positivas entre los individuos. El interés por este fenómeno no solo se ha incrementado en la sociedad en general, sino también en el ámbito académico. Este artículo busca aportar por medio de una revisión de literatura con el objetivo de identificar las diferencias y supuestos que subyacen en las diversas definiciones propuestas por los investigadores y académicos en torno a este fenómeno, las cuales giran alrededor del papel que debe jugar el altruismo y la comercialización en los actos de compartir.
Revisión de métodos de aprendizaje automático para detectar al parásito de la enfermedad de Chagas
Authors: Ojeda-Pat Allan , Martin-González Anabel , Uc-Cetina Víctor
Published: February 2021

La enfermedad de Chagas, causada por el parásito Trypanosoma cruzi, afecta a una gran cantidad de personas en Latinoamérica. Un análisis de sangre resulta el método preferido para generar un diagnóstico de la enfermedad; sin embargo, es un proceso tardado, ya que requiere de mucho esfuerzo de expertos para analizar grandes cantidades de muestras en búsqueda de parásitos. La implementación de sistemas automáticos que faciliten la detección del parásito en imágenes de muestras de sangre capturadas por microscopio es de gran utilidad. Por tanto, en este artículo de revisión se detallan los diferentes trabajos científicos que utilizan técnicas de aprendizaje automático para detectar y segmentar al parásito Trypanosoma cruzi en imágenes digitales.
European vector of sustainable development of economic and management education in the institute of engineering in the conditions of restructuring
Authors: Metelenko Natalia , Trokhymets Olena
Published: February 2021

The study is based on the realities of the state and prospects for the development of the national higher education system during the period of active integration processes into the European Higher Education Space and the European Research Space. The analysis of the following aspects is carried out: the current state of the Ukrainian education system, the actions of the Ministry of Education and Science of Ukraine to develop cooperation with international organizations in various areas, in particular, to promote innovation and entrepreneurship in Ukraine, which is especially relevant for the industrial region - Zaporizhzhia region, which concentrates such strategic sectors of the Ukrainian economy as metallurgy, mechanical engineering, electricity. It is emphasized that the legislation of Ukraine on education sets such a goal - development, effective functioning of the education quality assurance system in Ukraine, implementation of a constant and consistent process of improving the quality of education and it is noted that the development strategy of Zaporizhzhia National University (hereinafter ZNU) is to develop and consolidate leading positions aimed at training highly qualified specialists, development of scientific research, increasing the role of the innovative component in the activities of ZNU and its integration into the European and world educational space. It is proved that the restructuring of higher education institutions in Ukraine helps to increase the efficiency of their operation. The changes that took place in the process of joining the Zaporizhzhia State Academy of Engineering (hereinafter ZSIA) to ZNU and as a result of the creation of a structural unit - Engineering Educational and Scientific Institute (hereinafter EESI), which has a non-faculty structure and consists of fifteen departments of different areas of training, are analyzed. The article substantiates the strategic advantages of the project of joining ZSIA to ZNU, which made it possible to diversify the educational programs of Bachelors and Masters educational levels in economics and management with the aim of curricula modern updating and further training of highly qualified specialists for industrial regions, in particular for industrial enterprises, in the fields of mechanical engineering, electric power and small and medium-sized businesses serving "large" industrial enterprises in the region. The results of work on improving the quality of higher education in EESI ZNU in the areas of non-formal and informal education, academic mobility, dual education, creating unique learning conditions for privileged categories of students and students with special needs, further integration of economic and managerial education in engineering education are analyzed.
Quality of activities of higher education institutions: regulatory regulation and internal governance system
Authors: Zinchenko Olena , Pohrebniak Anna , Gorska Svetlana
Published: February 2021

The article considers the issue of improving the system of higher education institutions internal management. The purpose of the article is to analyze the regulations on the quality of education and the formation on this basis of approaches to improve the system of internal quality management of higher education institutions. To achieve this goal, the following tasks have been solved: the legislative acts in terms of regulating the quality of higher education have been analyzed, the interpretation of the quality of education in the relevant Laws of Ukraine has been studied; the concept of the quality system of higher education institutions has been improved; the conceptual bases of improving the management of the system of improving the quality of higher education institutions have been substantiated; the system of measures and procedures used in ensuring the quality of higher education have been studied; the basic components of the decision-making system to ensure the quality of higher education institutions have been identified. The object of the study is the legislation on the management process of improving the quality of higher education institutions. The subject of research is the theoretical and methodological and practical issues of management of the quality assurance system of higher education institutions. The following methods were used in the study: structural-logical analysis - to build the logic and structure of work; system analysis and synthesis - to study the essence of the subject of study; system approach - to improve the system-targeted approach to the management of the system of improving the quality of higher education institutions. In this article, based on the analysis of the relevant legal framework, the provisions on the management of the internal system of quality assurance of higher education institutions in the context of improving the methodological foundations of such management have been further developed, the system of measures and procedures used to improve the quality of higher education decision-making systems to ensure the quality of higher education institutions has been analyzed. In the format of the practical significance of the works, it is possible to determine the possibility of their use in the management of higher education institutions of all forms of ownership in order to achieve the appropriate quality of their results.
Evaluación del manejo de dos tipos de suelos del departamento del Cesar a través de áreas homogéneas de tierra
Authors: Diaz Luis , Hamburger Neill
Published: February 2021

El departamento del Cesar a través del Instituto Geografico Agustin Codazzi (IGAC) presenta mal manejo de los suelos en un 56%, pero esta información es a nivel exploratorio (Escala 1:100000) y se desea verificar a través de un estudio de Detalle (Escala 1:25000 a través de Áreas Homogéneas de Tierra (AHT). Por ello tiene como objetivo este informe evaluar el manejo de dos tipos de suelos del departamento del cesar intervenidos por el ser humano a través del cálculo de potencial de suelo de la metodología de áreas homogéneas de tierra. La primera área que se estudiará será los suelos utilizados para minería (SUM) y la otra área para suelos utilizados en Ganadería (SUG). Los resultados arrojaron que lo SUM se categorizan como plintosoles, gracias a los óxidos de hierro presente en ellos y por el material agregado al suelo como la plintita. Mientras que los SUG se caracterizan por ser suelos Acrisoles debido al alto contenido de arcilla y bioturbación del perfil de suelo. Además, los SUM tiene un potencial de 28, considerado para suelos malos, pero que controles especiales se puede hacer agricultura y ganadería. Mientras que los SUG son moderadamente buenos aptos para agricultura y no ganadería. De modo que tras el análisis de áreas homogéneas de tierras se encontró que los suelos tienen una unidad cartográfica de suelo (UCS) de 10 CSc-28 y 04 CSc 68 respectivamente para SUM y SUG. Indicando que el suelo se encuentra mal utilizados en un 53%.
浅谈工程造价的预算审核
Authors: 程 健
Published: February 2021

大部分状况下，造价对于工程的概预算以及其自身的审核和整个工程的经济成效有着直接的关系，不过，对于目前的状况来说，建筑行业的经济发展相关体系还不够成熟，就会导致预算审核的工作无法进行有效的创新和发展，因此，相关的建设部门就要加强对概预算审核工作的重视，创新审核的措施，提升其自身的工作品质。
建筑工程施工技术及其现场施工管理措施探究
Authors: 魏 继红
Published: February 2021

近年来，在多方面利好因素的影响下，使得我国综合国力得到了显著的发展进步，从而为各个领域的发展壮大带来了诸多的机遇，有效的推动了建筑工程行业的稳步发展，与此同时也加剧了整个建筑工程行业内部的竞争形式。建筑工程施工单位要想保证自身能够在严峻的市场竞争中长期处在不败的境地，那么最为重要的就是需要从各个细节入手来提升自身的综合实力，充分结合各方面实际情况和需要来编制完善的企业工程项目管理制度。由于建筑工程项目从设计到施工结束，各个细节都会对工程施工质量造成一定的影响，并且还与企业市场形象的设立存在密切的关联。所以，建筑工程施工单位务必要不断提升工程施工水平，加大力度全面落实现场施工管理工作，促进企业自身综合实力的不断提升，促使施工单位能够获得更加丰厚的经济收益，从而为建筑施工单位未来稳步健康发展创造良好的基础。