bluuebunny/crossref_metadata_2025 huggingface dataset:
Integrated Clinical Experiences in a Campus Onsite Clinic: A Self-Contained Model of Physical Therapy Clinical Education
Authors: Wilson Ann
Published: September 2021

Purpose: This paper describes a self-contained model of integrated clinical experiences (ICEs) that take place during the academic portion of an entry-level physical therapist education program in a campus onsite clinic. Description of Model: Students participate in ICEs for three consecutive semesters. Students provide pro bono physical therapy services to individuals with impairments, functional limitations, or changes in physical function resulting from a variety of health conditions. In addition, students participate in an exercise/wellness program for individuals who wish to improve or maintain their current levels of fitness. The first ICE consists of second-year students observing/assisting third-year students in the onsite clinic with basic patient care skills and participation in an exercise/wellness program. Students in the second and third ICEs provide ongoing one-on-one skilled therapy for individuals with neurological or musculoskeletal diagnoses. Results: Feedback obtained from onsite clinical instructors, core academic faculty, students, and patients receiving care in the onsite clinic through group debriefings, questionnaires, and interviews is used to assess students’ readiness for full-time internships and effectiveness of the ICEs. The feedback reveals that the ICEs are meeting their intended goals. Category ratings in the “red flag” areas of the Clinical Performance Instrument (CPI) are consistently above expected levels for students completing their first full-time clinical internship. In addition, patients receiving care in the onsite clinic report a high level of satisfaction with the care provided. Conclusion/Possible Recommendations: This model provides students with an opportunity to gain clinical confidence in a realistic setting while reinforcing concepts presented in academic coursework. Providing ICEs on campus decreases reliance on clinical facilities and allows for academic program oversight of the quality of the learning experiences and early identification of students who have deficits in clinical skills and/or academic knowledge. The learning experiences provided in the onsite clinic give students a transitional experience that helps them benefit more fully from full-time internships. A potential challenge to this model is finding the space and financial resources needed to make it viable.
“Finishing Business” The Important Role of the Psychosocial Worker in the Interdisciplinary Palliative Care Team: A Hypothetical Case
Authors: Rowe Merridy , Turnbull Catherine
Published: September 2021

The assessment of the palliative client and family caregivers by an interdisciplinary team comprising medical, nursing, and allied health allows for all aspects including the physical, social, and psychological and spiritual needs to be incorporated into care planning. This comprehensive level of planning for the care of the client and family caregivers can allow for a client to fulfil their own definition of a good death, or dying well. Whilst the provision of psychosocial support can be the seen as the role of the social worker in the team, all members of the palliative care team, especially in rural and remote areas with fewer members, will at times face a situation where they need to provide some psychosocial support. It is acknowledged by the authors that the social work professional identity, responsibilities, and skills are not easily understood, and this identity is further challenged with the prospect of interdisciplinary work. This paper describes and illustrates the psychosocial considerations for the palliative client and family caregiver and has been developed following a review of the definition of a “good death” in consultation with rural and remote-based palliative care team members in South Australia. A literature search of the skills of the social work trained professional applicable to interdisciplinary palliative care work is included. A workforce evidence-based (WEB) diagrammatic tool is offered to illustrate the areas for assessment and intervention. Tasks associated with the psychosocial service to the client and family caregivers, the members of the palliative care team, and the community are defined with the goal of developing a consistent expectation of the role. The contribution of the psychosocial worker in assessing the need for ongoing bereavement support and provision is included.
Questions and Decisions: Application of a Cyclical Model for Program Assessment
Authors: Parrott Cathy , Lannucci Marleen
Published: September 2021

Purpose: Expectations for public accountability, including accreditation, challenge allied health science educational programs to develop a sound program assessment plan. However, program assessment is often detached from what faculty feel is important. What is needed is a model for assessment that allows faculty to adapt assessment processes so they can ask their own questions and obtain useful findings that guide their decisions about program improvement. The purpose of this paper is to posit our model for program assessment, provide an example of implementation of the model, and discuss its value. Model Description and Implementation: Our proposed model is rooted in the needs assessment frameworks developed by respected experts in higher education program assessment. A goal of our model was to make it less complex than prior models but universally flexible, and to include the 5 elements we deem essential. This paper explains the conceptual basis of the model and describes its two process cycles (questions and decisions), the first of which prompt faculty to ask important assessment questions and identify appropriate methods, data sources and stakeholders for inquiring about the question. The second cycle facilitates faculty to analyze the data and make appropriate decisions about program change. One question about student learning related to decision making is used as an example of the model implementation for program assessment. Results: The model cycles clarified the extent of student and employer perceived needs in clinical decision making. The model also illustrated to faculty how to make decisions about program change and follow with ongoing assessment. The effectiveness of the model to engage faculty in data driven program assessment is discussed. Conclusion: A heuristic assessment model can direct faculty to identify important questions and implement meaningful data collection which leads to focused program decisions. Our model facilitates faculty ownership of crucial questions, guides an assessment process that reveals the extent of program needs, and leads to measured program changes.
The Research Circle - A Place for Interdisciplinary Learning, Sharing and Networking to Develop Facilitators of Evidence-Based Practice
Authors: Reinhold Martina , Otieno Sango
Published: September 2021

Health Professional programs incorporate the principles and methods of clinical research and evidence based medicine (EBM) into their curriculum to encourage evidence based practice in health care. However, many faculty that join health profession programs do so after having worked in clinical practice for some time with limited experience in clinical research and EBM making successful guidance of students difficult for some. This study describes implementation of the Research Circle at Grand Valley State University, where faculty from diverse disciplines such as physician assistant, physical therapy, occupational therapy, speech pathology, radiology, and dietetics came together to share and learn basic concepts in clinical research and EBM. Methods: The Research Circle started in the fall semester of 2013 with monthly meetings and concluded in April of 2014. Meetings consisted of informal presentations on topics relevant to clinical research. A survey was sent to the participants before (pre) and after (post) conclusion of the Research Circle meetings using SurveyMonkey®. This survey was designed to assess the general comfort level with clinical research and its perceived importance in teaching as well as clinical practice. Results: A combined 22 faculty participated in at least one meeting of the Research Circle. Nine faculty, who participated in at least 75% of the Research Circle meetings and completed both the pre as well as post survey, were included in this study. Participation in the Research Circle improved the perceived comfort level of the participants as it relates to research and use of the scientific literature. Furthermore, knowledge of the research process in teaching was valued as more important by faculty after attending the Research Circle. Conclusions: The results described in this preliminary study suggest that implementation of the Research Circle can positively impact faculty perception of and comfort level with clinical research and the scientific literature, establishing a basis from which to develop and improve the skills needed to teach and practice EBM in health care. Notably, the Research Circle has provided an opportunity for faculty from diverse disciplines to come together to learn and discuss, providing a venue to share their research interest and connect.
Usefulness of the ManageMed Screen (MMS) and the Screening for Self-Medication Safety Post Stroke (S5) for Assessing Medication Management Capacity for Clients Post-Stroke
Authors: Bolduc Jessica , Robnett Regula
Published: September 2021

Occupational therapists need to efficiently and accurately screen a client’s medication management capacity, especially for clients post-stroke. Most therapists are not aware of, nor do they utilize specific assessments for, medication management capacity. The purpose of this pilot study was to compare the results of the ManageMed Screen (MMS), the Screening for Self-Medication Safety Post Stroke (S5), and the Montreal Assessment of Cognition (MoCA) on a population of rehabilitation clients post-stroke to determine the usefulness of the medication assessment tools in clinical practice. These screens were designed for use in occupational therapy practice among other healthcare professions: the MMS was validated for the general adult population, the S5 for clients post-stroke, and the MoCA is a cognitive screen used with adult clients with a variety of diagnoses including stroke. The MoCA was used to explore the potential relationship between cognition and medication management capacity. Study participants included five clients post-stroke and three occupational therapists. Clients were screened by the occupational therapists with the MMS, S5, and MoCA, and clinicians also participated in a focus group to assess their perceived usefulness of the screens. Results demonstrated that the MMS score compared to the S5 score was not statistically significant (r=.671, p=.215). There is no established consistency between the MoCA and MMS given these five clients. The MMS score was correlated to the MoCA score and was not found to be significant at a value of .205 with p=.741. The S5 score was also correlated to the MoCA score using SPSS and was found to have a non-significant value of -.287 and p=.640. Additionally, through a focus group, clinicians deemed both the MMS and S5 as useful, but felt the MMS was a more useful screen for their clinical practice with regard to efficient and practical use with clients post-stroke in a rehabilitation setting.
Air Displacement Plethysmography and Resistance Exercise
Authors: Grossman Joan , Deitrick Ronald
Published: September 2021

Purpose: The purpose of this study was to examine the effect of resistance exercise (RE) on body composition using air-displacement plethysmography (ADP) within 2 hours of completing RE. Methods: Thirteen university students (9 males and 4 females; 18.8±0.5 yrs; mean ± SD) volunteered for this study. The RE program (55.4±8.7 min) consisted of a combination of upper- and lower-body extremity exercises and abdominal exercises for a total of nine different exercises. Relative body fat (BF) was assessed (1.76+0.4 hr) using ADP before and after the RE along with skinfold (SF) measures, body mass (BM) and respiratory quotient. Results: Statistically significant reductions in pre-post RE relative BF measurements (p=0.036) were observed using ADP along with statistically significant reductions in body volume (BV) (p=0.005), body mass (BM) (p=0.038) and fat mass (FM) (p=0.020). The mean intraclass correlation coefficients (ICC) for these variables was 0.99. No significant pre-post differences in fat-free mass (FFM), body mass index (BMI) or skinfold (SF) values were reported. Conclusions: This study demonstrates the potential adverse effects of assessing relative BF within 2 hours after RE. Significant differences in pre-post relative BF were supported by significant reductions in BV, BM, and FM. The results of this study support the manufacturer guidelines using ADP and RE restriction prior to body composition assessment.
Factors of Stress, Burnout, and Frustrations Experienced by Athletic Training Students
Authors: Mauzy Justin , Bowman Thomas , Mazerolle Stephanie , Fister Carrie
Published: September 2021

Purpose: College students are at a risk for increased levels of stress and burnout, and those enrolled in healthcare degree programs are more likely to experience higher levels due to balancing demanding roles. Our purpose was to assess sources of stress, burnout, and/or frustration in athletic training students (ATSs) of different academic standings. Methods: Data were collected through the use of an original, 33-question questionnaire. An inductive approach was used to analyze the data and multiple analyst triangulation and interpretive member checks were used to secure credibility. Results: 27 male and female ATSs from freshman, sophomore, junior, and senior classes from one institution voluntarily participated within this study. We were able to identify distinct themes of stress and burnout for each class of ATSs. Freshman reported concern for the time demand from the major and a desire to have more hands-on activity involved with their clinical education experiences. The sophomores reported feeling stressed regarding the expectation to retain information and the expectations to perform hands-on duties, as well as their ability to balance academic and clinical responsibilities. Challenging coursework, pressure during clinical experiences, and social conflicts appeared as themes for the junior ATSs. Finally, the seniors stated a fear of not achieving professional proficiency was a source of frustration. Conclusions and Recommendations: Based on our findings, efforts should be made to assist student time management practices, improve communication between preceptors and students, and make expectations of the athletic training program (ATP) faculty and preceptors clear. Such measures could help influence other positive changes within ATPs to improve the learning environment for ATSs.
Median Nerve Mobility Measurement using a Motion Tracking Analysis Program: A Reliability Study
Authors: Gonzalez-Suarez Consuelo , Dizon Jan , Cabungcal-Fidel Belinda , Cua Ronald , Dones Valentine , Lesniewski Peter , Thomas John
Published: September 2021

Objective: To evaluate relative and absolute reliability and repeatability in assessing median nerve mobility at the level of the wrist and distal upper arm of the right upper extremity during wrist extension. Methods: Six healthy participants participated in the study. Median nerve mobility was captured three times at both sites using Sonocyte Turbo by two sonologists for a total of 72 video clips (36 for each site and 18 by each sonologist). Longitudinal movement was measured using Motion Tracking Analysis Program (MTAP) by the two assessors who were rehabilitation medicine residents. After one month, the assessors remeasured the longitudinal excursion of the median nerve of the previous video clips. Results: There was moderate agreement between the two sonologists of the median nerve mobility at the level of the distal upper arm and the wrist respectively. There was a moderate to almost perfect agreement between the two assessors’ readings in the mobility of the nerve at level of the distal upper arm and wrist for the first and second readings. Repeatability testing showed that there was variable agreement at the level of the distal upper arm and at the wrist. Conclusion: MTAP using fast template tracking with an adaptive template is a reliable tool that can be employed in the accurate assessment of median nerve mobility at the distal upper arm and wrist.
Attitudes toward Death Anxiety and Dying Among Respiratory Therapy Students: A Pilot Study
Authors: Collins Kevin , Marshall S. , Vaughan Philip
Published: September 2021

Objective: To evaluate relative and absolute reliability and repeatability in assessing median nerve mobility at the level of the wrist and distal upper arm of the right upper extremity during wrist extension. Methods: Six healthy participants participated in the study. Median nerve mobility was captured three times at both sites using Sonocyte Turbo by two sonologists for a total of 72 video clips (36 for each site and 18 by each sonologist). Longitudinal movement was measured using Motion Tracking Analysis Program (MTAP) by the two assessors who were rehabilitation medicine residents. After one month, the assessors remeasured the longitudinal excursion of the median nerve of the previous video clips. Results: There was moderate agreement between the two sonologists of the median nerve mobility at the level of the distal upper arm and the wrist respectively. There was a moderate to almost perfect agreement between the two assessors’ readings in the mobility of the nerve at level of the distal upper arm and wrist for the first and second readings. Repeatability testing showed that there was variable agreement at the level of the distal upper arm and at the wrist. Conclusion: MTAP using fast template tracking with an adaptive template is a reliable tool that can be employed in the accurate assessment of median nerve mobility at the distal upper arm and wrist.
Perceptions of Physician Assistant Students’ Readiness with System-Based vs. Problem-Based Physical Diagnosis Curriculum
Authors: Donkers Kelly , Garrubba Carl , Daniel Laura , Ennulat Carol
Published: September 2021

Purpose: The purpose of this study was to identify students’ perceptions of the curriculum in two different cohorts who received two different delivery styles (system-based or problem-based) of physical diagnosis curriculum to determine if significant differences were present, and to identify how each cohort performed on their clinical experiences (CEs). Methods: One-hundred and sixteen students at one physician assistant (PA) program from two cohorts of students were surveyed using a true/false survey (analyzed by chi-square) regarding their perceptions of their preparedness for clinical rotations with regard to the ability to perform physical examinations. Clinical preceptor evaluations were also analyzed for both cohorts with respect to competence in physical examination skills as rated by preceptors on a scale of 1 to 3. Results: Each cohort related that they were satisfied with their preparation regardless of delivery format, with no tendencies toward respective cohorts indicating they should have received the alternate delivery format. No significant differences were found in the students’ perceptions of their ability to perform a physical examination on CEs between the cohorts or between the groups’ performances on their CEs. Conclusions: System-based and problem-based formats were found to have merit and similar outcomes and thus can both be deemed effective teaching methods for teaching physical diagnosis curriculum.
Qualitative research into the consumption of food with expired ‘use by’ dates
Authors:   Ipsos MORI
Published: September 2021

The COVID-19 Consumer Tracker and the Food and You 2 survey indicate that a substantial minority of consumers eat food after the use-by date (UBD) has expired. The FSA wished to discover more about the drivers of consuming food after the UBD, and barriers to compliance with the UBD.
RADIATION INDUCED DEMAGNETIZATION OF PERMANENT MAGNETS UNDER 10 MeV ELECTRON BEAM
Authors: Bovda V.А. , Bovda А.М. , Guk I.S. , Dovbnya А.N. , Lyashchenko V.N. , Mytsykov А.О. , Onishchenko L.V. , Kandybey S.S. , Repihov O.A.
Published: September 2021

Nd-Fe-B and Sm-Co magnets were irradiated by electron beam with the energy of 10 MeV and bremsstrahlung. The absorbed dose was 16 and 160 Grad. It was found that magnetic flux of Nd-Fe-B magnets decrease with irradiation, whereas Sm-Co magnets keeps magnetic performance.
INTERDIGITAL STRUCTURES OF HEAVY IONS LINEAR ACCELERATORS: THEIR TUNING, BEAMS FOCUSING AND USE (REVIEW)
Authors: Dyachenko О.F.
Published: September 2021

The review interdigital H-accelerating structures (IHAS) of the heavy ions linear accelerators developed in NSC KIPT throughout several tens of years is presented. It is shown that in structures with individual stems all kinds of focusings are applicable: quadrupole, grid, alternating-phase (APF, in various variants), high-frequency (in various variants) and their combinations. Corresponding constructive decisions are developed for accelerating structures of different function. Essentially new approaches for their adjustment for the set distribution of an accelerating field and frequency (by countering corner change) and some new regulating elements are offered: the end resonant elements of adjustment (EREA) and inductance-capacitor elements (сontrivances). By results of modelling three real accelerating sections which are created at modernization of the multicharge ions linear accelerator were developed. New variants pre-stripping area of the heavy ions accelerator with the relation of mass number to charge A/q = 20 are offered.
PLASMA DYNAMICS IN ACCELERATOR WITH PLASMA OPENING SWITCH
Authors: Druj O.S. , Yegorenkov V.V. , Onyshchenko I.M. , Yuferov V.B.
Published: September 2021

Plasma propagation in the pulse electron accelerator chamber with a plasma opening switch is investigated. Output beam and X-ray radiation parameters are shown to vary depending on the plasma channel location at the moment of current breaking. Experiments showing plasma compression into channels during the conductive phase of the plasma opening switch operation have been performed.
PARTICLE DYNAMICS IN THE INJECTOR OF ION LINEAR INDUCTION ACCELERATOR
Authors: Karas’ V.I. , Kornilov E.A. , Manuilenko O.V. , Fedorovskaya O.V.
Published: September 2021

The investigations of the particle dynamics in the injector of a linear induction accelerator (LIA) in the presence of an accelerating electric field and a uniform longitudinal magnetic field of various magnitudes have been presented. It is shown that at found parameters of the system and particles the ion beam at the exit of the injector keeps the transverse dimensions and its current close to the initial, that allows to count on the accomplishment of its further transportation through the LIA section.
ACTIVATION OF 93Nb NUCLEI ON THE LINAC LUE-40 OF RDC “ACCELERATOR” AND DETERMINATION OF PHOTONUCLEAR REACTION CROSS-SECTIONS
Authors: Vodin O.M. , Deiev O.S. , Olejnik S.M.
Published: September 2021

The bremsstrahlung spectra of medium-energy electrons (30…100 МeV) were calculated in GEANT4. Cross-sections for photonuclear reactions were calculated in TALYS1.9. A convolution over the energy of the cross-sections of one- and many-particle reactions with the bremsstrahlung flux density was performed. The numerical values of the yield of 93Nb(γ,xn)93-xNb reactions, the activity of irradiated 93Nb targets, and the average reaction cross-sections were obtained. The differences of the bremsstrahlung spectra from electrons with close initial energies were calculated. The shape of the difference spectra was analyzed. The contributions of the quanta of the low-energy part of the difference spectrum and the quasi-monochromatic peak of the difference spectrum to the total activity of the targets were compared. An approach for correction of the experimental cross-sections of photo-nuclear reactions using the method of "bremsstrahlung spectra difference" was considered.
OPTIMIZATION OF A COMPTON DIRECT-CHARGE DETECTOR FOR MONITORING HIGH-ENERGY BREMSSTRAHLUNG RADIATION
Authors: Nikiforov V.I. , Shlyakhov I.N. , Shevchenko V.A. , Tenishev A.Eh. , Uvarov V.L.
Published: September 2021

The conditions of application of a Compton direct-charge detector (DCD) for monitoring of intensity of the highenergy bremsstrahlung (X-ray) radiation are studied. A method is described for calculation of characteristics of the secondary е,Х-radiation at exit of an electron accelerator, and also for providing the conditions of the electronic equilibrium. By means of computer simulation, the processes of charge generation in a DCD monitor comprising two plates of different thickness from various metals are analyzed. On the basis of the obtained results, the requirements imposed on DCD composition for providing the maximum of its sensitivity are formulated. It is shown, that within the suggested DCD geometry, the monitor sensitivity reveals a weak dependence on the atomic number of its material at Z>29, and also on the end-point energy of X-rays in the span of 20…100 MeV.
APPLICATION OF CATHODOLUMINESCENCE FOR ON-LINE MONITORING OF REGIME OF AN INDUSTRIAL ELECTRON ACCELERATOR
Authors: Pomatsalyuk R.I. , Romanovsky S.K. , Shevchenko V.A. , Tenishev A.Eh. , Titov V.Yu. , Titov D.V. , Uvarov V.L. , Zakharchenko A.A.
Published: September 2021

Continuous monitoring of critical parameters of an industrial electron accelerator provides quality of product processing. For that purpose, the methods of contact-free diagnostics of processing regime are developed. One of them is based on application of a wide-aperture stack-monitor for on-line measurement of beam current, electron energy, and also the mean absorbed dose over the plain of beam scanning in an irradiated object [1]. In the work, the conditions of application of cathodoluminescence (CL), accompanied action of accelerated electrons on amorphous dielectrics, for adjustment of the stack-monitor, and also for measuring in on-line mode the dose in a point of control as well as of distribution of the electron flux density on the surface of the object, is studied. It is shown, that titanium dioxide, keeping the radiation-optical yield at an accumulated dose of up to 4 MGy, can be considered as a promising material for manufacturing of CL detector.
OPERATION CONTROL SYSTEM OF STERILIZATION INSTALLATION ON THE BASIS OF THE ACCELERATOR UELV-10-10-S-70
Authors: Bystrov P.A. , Pavlov Yu.S. , Kazyakin А.А. , Kozlov A.А.
Published: September 2021

The design of the system for monitoring and recording the operating parameters of the radiation installation at the IPCE RAS on the basis of the accelerator UELV-10-10-S-70 is presented. Solutions are proposed for collecting data from the equipment of the sterilization installation and the accelerator, their primary analysis, transfer to the computer for further processing and fixation in the journal. Presented software of the control device. The created device allows you to timely identify and prevent the occurrence of emergency situations.
La Metacomunicación: Una Aproximación a sus cualidades para la toma de decisiones del ingeniero industrial
Authors: Ríos Barrios Isabel , Álvarez Yero Juan Carlos , Thabet Cabrera Daima
Published: September 2021

El trabajo tiene el propósito de fundamentar las cualidades metacognitivas, semióticas y pragmáticas de la comunicación para la toma de decisiones. Se develan las carencias que en este sentido mantienen algunos enfoques relacionados con la comunicación. Los aspectos tratados constituyen un acercamiento a la metacomunicación desde los fundamentos conceptuales que se proponen, su estructura y componentes. Se establecen nuevas relaciones a partir del análisis de estos componentes expresado en síntesis a través de un flujograma que facilita su comprensión. Finalmente, se advierte la necesidad e importancia de la temática en la formación del ingeniero industrial, a través del análisis de la influencia que ejerce en ellos el comportamiento oportuno en el proceso interactivo que posibilitan una mayor eficacia en la estrategia empresarial y por ende una mayor contribución a la competitividad en la empresa.
Uso de biocarbón de cáscaras de semilla de palma aceitera enriquecido en biol de estiércol de vaca para mejorar suelos sobrepastoreados
Authors: Lozano Reátegui Ronald Marlon , Alegre Orihuela Julio César , Velazco Castro Ena Vilma , Magdaleno Mendoza Carlos Mariano , Nieto Iturri Wilder Genry
Published: September 2021

Las agroindustrias de aceite de palma (Elaeis guineensis) en Pucallpa, producen como residuos, cáscaras de semillas (cuescos) contaminando el suelo; la crianza de ganado vacuno, origina estiércol (vacaza), que produce gases contaminantes; y, el deterioro de suelos por sobrepastoreo, son problemas ambientales que necesitan soluciones viables. La presente investigación evaluó el mejoramiento las propiedades fisicoquímicas de los suelos degradados por sobrepastoreo, aplicando biocarbón fabricado de cuescos por pirólisis y enriquecido en biol de vacaza elaborado por fermentación anaeróbica. La metodología comprendió un Diseño en Bloques Completamente al Azar (DBCA) con un control (T0) y tres tratamientos (T1, T2, T3), con 5, 10 y 15 t h-1 de biocarbón enriquecido respectivamente, asignados aleatoriamente por triplicado a 16 unidades experimentales de 2,4 m por 5,0 m (12 m2 ) cada una, contenidas en cuatro bloques. El análisis estadístico comprendió la prueba Shapiro-Wilks y Levenne, también Tukey y Friedman. Los resultados para pH, materia orgánica, densidad aparente, capacidad de intercambio catiónico y nitrógeno no resultaron significativos (p > 0,05), en cambio el fósforo con T3 y Potasio con T2, si mostraron diferencia significativa (p < 0,05), para mejorar las características fisicoquímicas de los suelos sobrepastoreados por aplicación de biocarbón enriquecido con biol de vacaza.
La autoconstrucción en un distrito de la provincia de Huancayo, Junín, Perú
Authors: Nieva Villegas Mayda Alvina , Moscoso Paucarchuco Ketty Marilú , Osorio Capcha Stiven Roland , Beraún Espíritu Manuel Michael
Published: September 2021

La presente investigación tiene por objeto analizar el desarrollo del complejo proceso de autoconstrucción para la ocupación de las viviendas en el distrito de Chilca – Huancayo, posee un enfoque cuanti-cualitativo con diseño descriptivo, transversal retrospectivo. Se seleccionó una muestra no probabilística de los propietarios de viviendas autoconstruidas de una manzana del barrio Puzo, del distrito de Chilca. La metodología de la investigación fue de alcance analítico y método de nivel empírico, se utilizó como instrumentos de recolección de datos: fichas técnicas sobre las viviendas y entrevistas semiestructuradas a los propietarios. Los resultados mostraron que la autoconstrucción es una situación real que poco a poco se ha ido incrementando en el distrito de Chilca y es necesario conocer más sobre este proceso para proponer acciones, políticas y responsabilidades. El estudio concluyó que en el aspecto técnicoconstructivo se debe realizar asesoramiento en la materia, control de calidad de materiales de construcción, y adecuada planificación y organización de la ejecución de la obra. Además, sobre el aspecto social, hay poca información que pueda contribuir al conocimiento de la población, ya que los hábitos y costumbres definen en gran medida este proceso autoconstructivo, los jefes de familia tienen experiencia rural, donde la vivienda solo es vista como una necesidad de cobijo familiar.
Evaluación del uso de inhibidores de corrosión en el decapado ácido de una planta galvánica
Authors: Sánchez Vargas Héctor Eduardo , De la Cruz Aragoneses María de Lourdes , Nápoles García Martha Faustina , Castillo Picón Fernando
Published: September 2021

La protección por recubrimientos constituye el método más empleado de combate anticorrosivo, dado por su efectividad, economía, universalidad y facilidad de aplicación. Sin embargo, la utilización de estos recubrimientos a nivel industrial conlleva un elevado consumo de energía y productos químicos, así como un marcado impacto ambiental. Una de las vías para minimizar los efectos negativos en este tipo de proceso es el uso de inhibidores de corrosión. Este trabajo se propuso el objetivo de mostrar los resultados de una investigación en la cual se realizó una evaluación para la introducción de inhibidores de corrosión en la operación de decapado ácido de un taller galvánico. Como métodos y técnicas de investigación se emplearon la revisión documental, observación, estudios experimentales, además se aplicaron técnicas de modelación matemática y optimización de procesos. Se obtuvieron como principales resultados: la demostración de la factibilidad del uso de formaldehído y la urotropina para las condiciones del taller; se determinó la concentración óptima del inhibidor en la solución ácida del decapado; se concluyó que las combinaciones de ambos inhibidores con el ácido sulfúrico resultan ser las mejores, con el menor costo de decapado para las condiciones óptimas comparada con el resto de las combinaciones ácido- inhibidor.
Análisis financiero en la producción de tomate orgánico (Solanum Lycopersicum) en el cantón pedernales. Manabi - Ecuador
Authors: Zambrano Barcia Tyrone Antonio , Castro Cedeño Diana Patricia , Vera Vera Randy , Zambrano Zambrano Diego Alejandro , Andrade Almeida Jacinto
Published: September 2021

Se realizó un ensayo en el cultivo del tomate orgánico (S. lycopersicum), cuyo objetivo fue determinar el tratamiento con el mejor costo beneficio del análisis financiero, la investigación es de tipo experimental, se desarrolló en dos fases, una fase invernadero donde las plantas se desarrollaron en un ambiente controlado hasta los 45 días y la segunda fase es de trasplantes al campo definitivo donde culminaran su ciclo de madurez y las labores culturales. Los tratamientos evaluados fueron: T1- Testigo; T2- 50 % de suelo+ 50 % compost; T3- 100 % compost; T4- Nitrógeno + Zeolita; T5- Nitrógeno + Fosforo + Zeolita; T6- Nitrógeno + Fosforo + Potasio + Zeolita; T7- Nitrógeno + Fosforo+ Potasio + Boro + Zeolita; la metodología utilizada fue el análisis financiero del CYMIT. Los resultados obtenidos en esta investigación señalan al tratamiento T7 (fertilización completa + zeolita) como el mejor costo beneficio $1.83; y la mejor eficiencia, con promedios de 98,56% para N, 147,84% P, 147,84% para K.
Evaluación in vitro de 14 medios de cultivo sobre el crecimiento micelial de Moniliophthora perniciosa (Stahel ) Aime & Phillips-Mora
Authors: Huaman Pampañaupa Jhojan Sven , Márquez Romero Fanny-Rosario , Cabrera Márquez Sara , Paricoto Apaza Dilman Glicerio
Published: September 2021

El cultivo de cacao en el Perú se va incrementando por la ampliación de áreas productivas y mejora de los rendimientos, sin embargo, la presencia de las tres principales enfermedades (mazorca parda, escoba de bruja y moniliasis) afectan significativamente los rendimientos en cacaotales con bajo nivel de mantenimiento, teniendo como objetivo determinar los medios de cultivo que permitan mayores crecimientos radiales de Moniliophthora perniciosa, por lo que se hace necesario contar con estrategias viables de manejo y control. Las pruebas in vitro de control químico y biológico requieren que los aislados presentan crecimientos miceliales apropiados, por lo que se planteó la comparación de 14 medios de cultivo sólidos no convencionales con 6 repeticiones. Los tratamientos fueron maltacervezneg, frejolcaraota, achiote, cascmazorca, arroz, maizamarillo, frugos, mbamilaceo, papa, melazacacao, vegetales, masabourd, escobaverde y gelatina, sobre los cuales se sembró basidiocarpos de M. perniciosa proveniente de Cacaopampa-Santa Ana, pegados en el centro de la tapa de las placas petri de 90 mm y se incubaron por 12 días a 25°C de temperatura. Los medios de cultivo que permitieron mayores crecimientos radiales de M. perniciosa fueron medio malta proveniente de cerveza negra, frejol caraota, achiote y cáscara de cacao con 90.00, 87.08, 82.58 y 66.75 mm respectivamente y el medio papa (PDA) presentó un desempeño 50% menor que el medio Maltacerveneg en el crecimiento radial de cultivo monospórico de M. perniciosa.
Análisis de la participación del café en las exportaciones agropecuarias en el Ecuador periodo 2015-2019
Authors: Cacao Damaris Adelaida Banchón , Campoverde Jessica Maribel Quezada , Carpio Eveligh Prado , Unda Salomón Barrezueta
Published: September 2021

En el Ecuador la producción de café cumple un papel importante en la economía del país, siendo destacada a lo largo de los años, ya que es una de las fuentes importantes que genera empleo y divisas, por lo tanto, la presente investigación se desarrolló en Ecuador, que se encuentra ubicado en América del Sur, y tiene como objetivo “analizar la participación del café en las exportaciones agropecuarias del Ecuador en el periodo 2015-219”, mediante un enfoque descriptivo, de corte transversal y no experimental cuyo diseño es de tipo exploratorio, donde se evaluaron las cifras históricas del Sistema de Información y Producción Agropecuaria. Los resultados revelaron que la producción de café en Ecuador ha mantenido una tendencia decreciente en el periodo evaluado por diferentes causas como; las malas condiciones de las plantaciones por la afectación de la roya, precio del producto, tecnificación, factores climáticos, costos, escasez en mano de obra, vías de comunicación, y déficit en demanda del producto.

 

In Ecuador, coffee production plays an important role in the country's economy, standing out over the years, since it is one of the important sources that generates employment and foreign exchange, therefore, this research was developed in Ecuador, which It is located in South America. , and aims to "analyze the participation of coffee in agricultural exports from Ecuador in the period 2015-219", through a descriptive, cross-sectional and non-experimental approach whose design is exploratory, where the historical figures of the Information Agricultural and production system was evaluated. The results revealed that coffee production in Ecuador has maintained a decreasing trend in the period evaluated for different causes such as; the poor conditions of the plantations due to the impact of rust, product price, modernization, climatic factors, costs, labor shortage, communication routes and deficit in product demand.
Evaluación espacial del comportamiento fenológico de la vegetación mediante imágenes satelitales distrito de chiara-ayacucho 2000-2015
Authors: Rodríguez Jorge Luis Lozano , Fun Juan Carlos Chang Chang , Cruz Oscar Enrique Tang , Angeles Milagros Rocio Menacho , Gutiérrez Hernán Oscar Cortez , Gutiérrez Milton Milciades Cortez
Published: September 2021

La presente investigación se realizó el análisis de las imágenes satelitales MODIS-Terra 250m x 250m de resolución espacial y determinar el comportamiento fenológico de la cobertura vegetal del distrito de Chiara. El objetivo de esta investigación es dar a conocer y demostrar la importancia de la metodología utilizada (imágenes de satélite MOD13Q1) para el análisis multitemporal de la vegetación, mediante el uso del software ENVI, IDL, ArcGIS. En este sentido, se ha logrado describir el comportamiento de la vegetación en el periodo de los dieciséis años, y determinar una variabilidad del área de vegetación en las estaciones anuales de verano, otoño, invierno y primavera y estimar mediante métodos estadísticos la variabilidad del NDVI. Los principales resultados obtenidos son: La variación fenológicos de los ecosistemas, según la estacionalidad climática de las áreas estudiadas. En este sentido, los cambios y variaciones son explicados en base a las características de pixeles de colores. Los resultados obtenidos pueden servir como insumo para mejorar el proceso y clasificación de las imágenes de satélite con el objeto de elaborar mapas temáticos y contribuir a la mejor toma de decisiones en cuanto al uso adecuado de los calendarios agrícolas definidos para cultivos anuales y/o transitorios instalados en dicho distrito.

 

The present research was the analysis of the satellite imagery MODIS-Terra 250m x 250m of spatial resolution and determine the phenological behavior of the vegetation cover of the district of Chiara. The objective of this research is to make known and demonstrate the importance of the methodology used (satellite images MOD13Q1) for multitemporal analysis of vegetation, using the software ENVI, IDL, ArcGIS. In this sense, it has been possible to describe the behavior of vegetation in the sixteen-year period, and to determine a variability of the vegetation area in the annual seasons of summer, autumn, winter and spring and to estimate by means of statistical methods the variability of NDVI. The main results obtained are the phenological variation of the ecosystems, according to the climatic seasonality of the studied areas. In this sense, changes and variations are explained based on the characteristics of colored pixels. The results obtained can serve as input to improve the processing and classification of satellite images in order to produce thematic maps and contribute to better decision making regarding the proper use of the defined agricultural calendars for annual and / or transient crops Installed in that district.
Estrategias de mercadotecnia como determinante de las ventas en las micro y pequeñas empresas del municipio de Oaxaca de Juárez, Oaxaca
Authors: Cruz Estudillo Erika , Pérez Barroso Gustavo , Maldonado Juárez Lucia , Luna Santiago Néstor Jehová
Published: September 2021

Este articulo muestra los resultados que parten de una investigación realizada en el municipio de Oaxaca de Juárez en el año 2016, en la cual se analizó el impacto del estrés en la productividad de la micro y pequeña empresa. El presente artículo tiene como objetivo identificar como las estrategias de mercadotecnia determinan las ventas en el municipio de Oaxaca de Juárez, esto a través de encuestas aplicadas a los directores de micro y pequeñas empresas (mypes). Los principales hallazgos son los siguientes: la mayoría de las (mypes) estudiadas no investigan al mercado para identificar las necesidades y deseos de sus clientes, no evalúan la calidad de los productos o servicios que ofrecen, no tienen ningún referente sobre si el precio asignado a su producto o servicio es el correcto, no aplican actividades de promoción, así mismo no evalúan la calidad de su servicio. Como resultado de lo anterior, las empresas suelen tener ventas bajas.
AbstractThis article shows the results, which start from a research done in the municipality of Oaxaca de Juarez in 2016. It tries to measure the stress impact in the productivity of micro and small companies (PyMES). Taking into consideration de information gathered, this article has the goal to identify the marketing strategies in order to determine the sales in the municipality. Through the application of surveys to managers of these companies, it has been concluded: Most PyMES studied don’t research the market to identify the customers’ needs, they don’t have quality control implemented in their products, nor they evaluate their offered services. They don’t have a way of knowing if the prices assigned to their products and services, are correct. Furthermore, they don’t promote their products and services. As a result, these companies tend to have low sales.
Proceso de innovación de las mypes: relación entre el estrés, la innovación y la satisfacción de sus directores en Bogotá
Authors: Rodríguez Escobar Wilken
Published: September 2021

El presente artículo es producto de una investigación desarrollada sobre el relacionamiento de la innovación como una de las fuentes de estrés de los directores de las Micro y Pequeña empresa (MyPE) de Bogotá. Por medio del uso de unametodología cuantitativa aplicada a través de un cuestionario a 730 MyPES se logra caracterizar las empresas y se establece el modelo de relación lineal de las variables de interés (innovación, estrés y satisfacción). En este sentido, la investigación realizada puede dar a la comunidad académica nuevos enfoques para la comprensión del proceso de 1 Físico de la Universidad Distrital Francisco José de Caldas, especialista en administración y finanzas, gerencias y tecnología de la Universidad EAN y magister en docencia universitaria de la Universidad de la Salle. Profesor de la facultad de ingeniería de la Universidad Militar Nueva Granada. innovación y el nivel de estrés que produce en los directores de población seleccionada.
AbstractThis paper is a research product about the interrelation between the concepts of innovation and stress of the micro and small enterprises (MyPE) directors in Bogotá. Through the implementation of a quantitativemethodology, applied by doing a questionnaire to 730 MyPES, it was possible to characterize the enterprises and to establish a linear relationship model of the variables of interest (innovation, stress and satisfaction). Bearing that on mind, this research process can provide new approaches to the academic community, for the understanding of the innovation process and the level of stress that it produces to the directors of the selected population.
Factores de impacto en el fracaso de las MiPyMes de Matamoros
Authors: Ocegueda Mercado Corina Guillermina , Contreras Ocegueda Erandi Lizzete , Delgado Cázares Elsa , Guzmán Prince Lleana
Published: September 2021

En esta investigación se abordan los factores de impacto que tiene el fracaso en las micro, pequeñas y medianas empresas. El objetivo fue identificar los factores de fracaso de las micro, pequeñas y medianas empresas, establecidas en la ciudad de Matamoros, Tamaulipas. Los sujetos de estudio fueron las Micro, Pequeñas y Medianas Empresas (MiPymes) de Matamoros Tamaulipas, México. Fue una investigación de campo, tipo diagnóstico en la que se empleó un cuestionario utilizado en Puerto Vallarta Jalisco por el Dr. Manuel Ernesto Becerra Bizarrón y que se replicó en esta Ciudad. Respecto al objetivo se encontró que los factores de mayor impacto en el fracaso de las MiPymes en Matamoros son el reconocimiento del entorno.
AbstractThis investigation addresses the factors that impact micro, small and medium enterprises leading to their failure. The objective was to identify the factors of failure of micro, small and medium enterprises located in the city of Matamoros Tamaulipas. The study subjects consisted of micro, small and medium enterprises (MSMES) located in Matamoros Tamaulipas, Mexico. It consisted of a diagnostic type field study, which applied a questionnaire used in Puerto Vallarta Jalisco by Dr. Manuel Ernesto Becerra Bizarron and, which was replicated in this city. Regarding the objective, we found that the factors of failure that impact MSMES most in Matamoros are their surroundings.