bluuebunny/crossref_metadata_2025 huggingface dataset:
Effects of Different Tillage, Rotation Systems and Nitrogen Levels on Wheat Yield and Nitrogen Use Efficiency
Authors: Kayan Nihal , Ayter Arpacıoglu Nazife Gözde , Kutlu Imren , Adak Mehmet Sait
Published: August 2020

This research was conducted between 2011 and 2015 at research field of Faculty of Agriculture, Eskişehir Osmangazi University for evaluating two tillage methods (conventional and reduced), three crop rotations (wheat-wheat; wheat-fallow; wheat-chickpea) and four N levels (0, 50, 100, 150 kg ha-1). The experimental design was split-split plot with three replicates. Tillage methods were in main plots, crop rotations in subplots and N levels in sub-sub plots. The N concentration of grain and straw harvested from aboveground plant organs was separately determined using by the Kjeldahl digestion method after the plant samples were ground. Then, grain protein content, nitrogen use efficiency (NUE), nitrogen uptake efficiency (NUPE), nitrogen utilization efficiency (NUTE) were calculated. According to results, effects of tillage methods on NUE were unclear. Conventional tillage methods resulted in higher NUPE than reduced tillage in the last three years of the experiment. The NUTE was higher in reduced tillage than conventional in 2011-2012 and 2014-2015. The effects of tillage methods on grain yield were different due to the climatic conditions. Wheat-chickpea rotation had the better results for examined traits in this research. Increasing nitrogen doses increased grain and plant protein rate, however it decreased NUE and NUPE. The effects of nitrogen doses on NUTE were ambiguous. Nitrogen use efficiency and NUPE is traits that can be differed according to changeable grain yield depend on environmental conditions. Therefore, the experiments should be conducted for more than four years for revealed absolute effects both soil tillage method and nitrogen fertilization.
Structural Modifications of the Small Intestine of the African Giant Rat (Cricetomys gambianus, Waterhouse): Implications for Dietary demands and Improved Domestication
Authors: Olukole Samuel Gbadebo , Adenike Olusola Olatunji-Akioye , Oyeniyi Owolabi Oluwaseyi , Olusiji Oke Bankole
Published: August 2020

The African giant rat (Cricetomys gambianus, Waterhouse) is a wild rodent in sub-Saharan Africa widely hunted as popular meat delicacy. Domestication of this rat has been poor, probably due to nutrition among other factors. Developmental studies of the duodenum, jejunum and ileum as well as investigations of diet-based structural modifications of the small intestine were carried out in the rats using neonates, juveniles and adults with the aim of providing useful research information which could lead to improved domestication. The mean body weights of the animals were 39.67±1.45 g, 225.00±25.00 g and 742.90±62.13 g, respectively for the neonate, juvenile and adult rats. Significant differences were also observed in the villus height, villus width and crypt depth between the neonates and juveniles, unlike between juvenile and adult rats. These changes in intestinal morphology between the neonate and juvenile rats could be a measure of the neonates‘ adaptation to shifts from digestion of maternal milk to the consumption of solid and semisolid forages. Respectively for neonates, juvenile and adult rats, 188%, 228% and 30% increases in villus height for the duodenum, jejunum and ileum respectively, were observed. This is suggestive of larger surface area of the small intestine for digestion and absorption. This study elucidates the structural modifications of the small intestine which can be applied to dietary modifications in response to age in an effort to achieve a more successful domestication of the animal.
Considerations over a Case of Suspected Therapeutic Failure in Pediatric Patients after Switching Valproate Manufacturers
Authors: Eserian Jaqueline Kalleian , Chagas Jair Ribeiro , Galduróz José Carlos Fernandes
Published: August 2020

Introduction: Product switching followed by suspected adverse events are common and unsettling for antiepileptic drugs. The objective of this case study was to describe the investigation performed after report of suspected therapeutic failure in pediatric patients following a switch to a different valproate manufacturer and identify strategies concerning medication management for improving therapeutic outcomes.

Case description: It was reported that different pediatric patients’ condition changed (agitation/ seizures) after refilling the same drug prescription (sodium valproate syrup) from a different manufacturer. Medical staff reported a suspected therapeutic failure and some units of the product batch associated with the problem were seized by the local Post-marketing Surveillance Service for investigation of potential quality deviations. The seized units were evaluated by the State’s Surveillance Laboratory, nevertheless, drug potency was found to be 98.7%.

Conclusion: We consider that the reported event could be associated with aspects of medication use, i.e. potential dose measurement deviations resulting from remaining of residual liquid in the cup or eventual delay at prescription refilling process and consequential - even though brief - pharmacotherapy discontinuity. Patient education and counseling by pharmacists are essential for preventing drug-related problems and enhancing positive outcomes of pharmacotherapy.

 

Article Type: Case Study
Probiotic Application of Bacteriocin-Producing S. Epidermidis in A Cellulosic Pad to Treat Some Skin Infections
Authors: Hussein Yasser Ali , Luti Khalid Jaber Kadhum
Published: August 2020

The aim of this study was to evaluate the possibility of using Staphylococcus epidermidis cells as a probiotic to treat some skin infections. For this purpose, S. epidermidis Y73, which is an active bacteriocin producer and non-biofilm forming isolate, was selected among 134 skin isolates through primary and secondary screening. Tryptic soya broth was selected as the best medium to support bacteriocin production, while the optimal pH and temperature for S. epidermidis Y73 growth were 7 and 37Â°C, respectively, which were invested in the formula preparation. Furthermore, the possibility of using this isolate as a probiotic was investigated by preparing 4 potential cellulosic pads with 4 different formulae which were all subjected to an in vitro trial to select the one which is superior to the others in terms of supporting bacteriocin production and cells viability. The shelf life of the pad was estimated and the results showed that the cells remained vital until the 20th week. The selected pad formula was used to treat artificially induced wounds on rabbit skin. The wounds were infected with Staphylococcus aureus, Kocuria rosea and Pseudomonas. aeruginosa. The symptoms in both control and treated animals were recorded and, based on the results; the healing process with the presence of the S. epidermidis Y73 pad was significantly faster compared with that for the control. This research will serve as a base for future studies on using vital cells of S. epidermidis as probiotics and, hence, make a contribution to the current literature on using live cells to treat bacterial skin infections.
Study on the Contact Angle, Adhesion Strength, and Antibacterial Activity of Polymer/Cement Composites for Waterproof Coating
Authors: Ibraheim Sara M. , Hussein Seenaa I.
Published: August 2020

In the present work, polymeric composites were prepared for coating floors and swimming pools in dark colors. This was achieved through the use of a polymer coating solution added to fine cement with weight percentage (wt%) values of 5, 10, 15, 20, and 25 to obtain dark-colored (gray) composites. Mortar samples were prepared using the adhesion test. The contact angle and adhesion strength were studied for the prepared samples concerning the effect of changing the weight ratio of additive cement on water absorption. Also, the antibacterial activity was tested for the prepared coatings. The results showed that the contact angle increases with increasing the weight ratios of additive cement, which indicates that the prepared coating is not hydrophilic and water-impermeable. Besides, the adhesion was shown to increase with increasing the weight ratio of cement. According to the antibacterial activity analysis, it was found that the highest efficacy for killing Staphylococcus areus was observed at cement ratios of 5 and 15 wt%, whereas no activity was observed against Escherichia coli.
Geomechanical Analysis to Avoid Serious Drilling Hazards in Zubair Oilfield, Southern Iraq
Authors: Shaban Shaban Dharb , Hadi Hassan Abdul
Published: August 2020

Zubair oilfield is an efficient contributor to the total Iraqi produced hydrocarbon. Drilling vertical wells as well as deviated and horizontal wells have been experiencing intractable challenges. Investigation of well data showed that the wellbore instability issues were the major challenges to drill in Zubair oilfield. These experienced borehole instability problems are attributed to the increase in the nonproductive time (NPT). This study can assist in managing an investment-drilling plan with less nonproductive time and more efficient well designing.

      To achieve the study objectives, a one dimension geomechanical model (1D MEM) was constructed based on open hole log measurements, including Gamma-ray (GR), Caliper (CALI), Density (RHOZ), sonic compression (DTCO) and shear (DTSM) wave velocities , and Micro imager log (FMI). The determined 1D MEM components, i.e., pore pressure, rock mechanical properties, in-situ principal stress magnitudes and orientations, were calibrated using the data acquired from repeated formation test (RFT), hydraulic fracturing test (Mini-frac), and laboratory rock core mechanical test (triaxial test). Then, a validation model coupled with three failure criteria, i.e., Mohr-Coulomb, Mogi-Coulomb, and Modified lade, was conducted using the Caliper and Micro-imager logs. Finally, sensitivity and forecasting stability analyses were implemented to predict the most stable wellbore trajectory concerning the safe mud window for the planned wells.

   The implemented wellbore instability analysis utilizing Mogi-Coulomb criterion demonstrated that the azimuth of 140o paralleling to the minimum horizontal stress is preferable to orient deviated and horizontal wells. The vertical and slightly deviated boreholes (1ess than 30o) are the most stable wellbores, and they are recommended to be drilled with 11.6 -12 ppg mud weight. The highly deviated and horizontal wells are recommended to be drilled with a mud weight of 12-12.6 ppg.
Numerical Simulation of Immiscible CO2-Assisted Gravity Drainage Process to Enhance Oil Recovery
Authors: Al-Obaidi Dahlia Abdulhadi , Al-Jawad Mohammed Saleh
Published: August 2020

The Gas Assisted Gravity Drainage (GAGD) process has become one of the most important processes to enhance oil recovery in both secondary and tertiary recovery stages and through immiscible and miscible modes.  Its advantages came from the ability to provide gravity-stable oil displacement for improving oil recovery, when compared with conventional gas injection methods such as Continuous Gas Injection (CGI) and Water â€“ Alternative Gas (WAG).

Vertical injectors for CO2   gas were placed at the top of the reservoir to form a gas cap which drives the oil towards the horizontal oil producing wells which are located above the oil-water-contact. The GAGD process was developed and tested in vertical wells to increase oil recovery in reservoirs with bottom water drive and strong water coning tendencies. Many physical and simulation models of GAGD performance were studied at ambient and reservoir conditions to investigate the effects of this method to enhance the recovery of oil and to examine the most effective parameters that control the GAGD process.

     A prototype 2D simulation model based on the scaled physical model was built for CO2-assisted gravity drainage in different statement scenarios. The effects of gas injection rate, gas injection pressure and oil production rate on the performance of immiscible CO2-assisted gravity drainage-enhanced oil recovery were investigated. The results revealed that the ultimate oil recovery increases considerably with increasing oil production rates. Increasing gas injection rate improves the performance of the process while high pressure gas injection leads to less effective gravity mediated recovery.
Experimental Evaluation for the Inhibition of Carbon Steel Corrosion in Salt and Acid Media by New Derivative of Quinolin-2-One
Authors: Mohammed Mustafa Alaa , Kubba Rehab Majed
Published: August 2020

The inhibition ability of the new derivative (quinolin-2-one), namely (1-{[5-(2-Chloro-phenylazo)-2- hydroy-benzylidene]-amino}-4,7-dimethyl -6-nitro- 1H-quinolin-2-one (CPHAQ2O)) towards carbon steel corrosion in (3.5% NaCl) and (0.5M HCl) solutions were evaluated by potentiodynamic polarization at different inhibitor concentrations. Polarization curves showed that the evaluated compound acted as mixed inhibitors, and the adsorption of the evaluated inhibitor obeys the Langmuir adsorption isotherm in both salt and acid solutions. The results revealed that the percentage inhibition efficiency (%IE) in the salty solution (90.55%) is greater than that in the acidic solution (77.62%). The surface changes of the carbon steel and the film persistency of the inhibitor were studied using SEM (Scanning Electron Microscopy).
Role of oqxA and oqxB Genes in the Development of Multidrug Resistant Phenotype among Clinical Klebsiella pneumoniae Isolates from Various Cases
Authors: Mustafa Mustafa Suhel , Abdullah Rana Mujahid
Published: August 2020

This study investigated the prevalence of oqxA and oqxB genes and their effective roles in the development of multidrug resistant (MDR) phenotype among clinical isolates of Klebsiella pneumoniae. Out of 150 clinical samples, 50 (33%) isolates were recognized as K. pneumoniae according to the morphological and biochemical properties. The minimum inhibitory concentrations (MICs) assay revealed that the resistance values of the isolates were 43 (86%) against ceftriaxone (4- â‰¥64 Âµg/ml), 42 (84%) against ceftazidime (16- â‰¥64 Âµg/ml), 41 (82%) against cefepime (â‰¥16 Âµg/ml), 21 (42%) against ertapenem (â‰¥8 Âµg/ml), 18 (36%) against imipenem (4- â‰¥16 Âµg/ml), 15 (30%) against ciprofloxacin (â‰¥4 Âµg/ml), 11 (22%) against levofloxacin (â‰¥8 Âµg/ml), 45 (90%) against nitrofurantoin (128- â‰¥512 Âµg/ml), 36 (72%) against trimethoprime-sulfamethoxazole (â‰¥320 Âµg/ml), and 4 (8%) against tigecycline (â‰¥8 Âµg/ml). Genotype detection revealed that oqxA was found in 48 (96%) of K. pneumoniae isolates, whereas oqxB was found in 6 (12%) isolates. The MDR phenotype was observed in 40 (80%) isolates, of which 38 (95%) were harbored oqxA and/or oqxB genes. DNA sequencing of oqxA revealed the presence of three silent mutations. The phylogenetic tree of oqxA variants showed a significant deviation of these variants from K. pneumoniae species. The high prevalence of oqxA among K. pneumoniae isolates may contribute to the reduction of their susceptibility to multiple antimicrobial agents.
Comparison of Some Physiological Parameters in Female Rheumatoid Arthritis Patients in Pre- and Postmenopausal Stages
Authors: Yousif Noorhan H. , Ibraheem Shaima R.
Published: August 2020

Rheumatoid arthritis is an autoimmune disorder that is highly prevalent, leading to gradual cartilage distraction, and therefore is important to diagnose in the early stage. This study aimed to estimate the level of rheumatoid factor (RF) and Anti-citrullinated protein (Anti-ccp) in the serum of female patients. We also investigated several female reproductive hormones in the patients and compared their levels in the premenopausal and postmenopausal phases. The study included 88 female subjects, 50 suffering from signs of rheumatoid arthritis who were attending AL-Yarmouk teaching hospital, Baghdad, Iraq, and 38 without clinical signs of RA as a control group. The ELISA technique was used to estimate all the studied parameters. The results showed a significant elevation in the levels of RF (103.6 Â± 227.0 vs. 22.1 Â± 111.0 U/ml) and Anti-ccp (158.0 Â± 170.0 vs. 0.51 Â± 1.69 U/ml) in patientâ€™s serum as compared to the control. The percentage of overweight and obese patients was higher than that of those with normal weight. Also, the current results showed significant differences in the serum concentrations of the reproductive hormones between the premenopausal and postmenopausal phases in the patients group. The level of FSH in postmenopausal female patients was higher than that in premenopausal ones (33.5 Â± 17.9 vs. 9.01 Â± 9.31 U/ml). Also, the level of luteinizing hormone (LH) in the postmenopausal patients was higher than that in the premenopausal patients (26.4 Â± 12.3 vs. 12.7 Â± 10.2 U/ml). While the level of prolactin (PRL) in RA postmenopausal female patients was lower than that in the premenopausal patients (8.60 Â± 7.07 vs. 14.8 Â± 10.6 ng/ml). In addition, the level of Anti-mullerian hormone (AMH) in post-menopausal patients was lower than that in the pre-menopausal ones (0.034 Â± 0.023 vs. 0.635 Â± 0.683 ng/ml). Finally, the concentration of estradiol (E2) in the post-menopausal female patients was lower than that in the pre-menopausal ones (32.9 Â± 18.6 vs. 76.5 Â± 43.6 ng/ml).
Management of CRPS secondary to preganglionic C8 nerve root avulsion: A case report and literature review
Authors: Ghaly Ramsis , Haroutunian Armen , Grigoryan Gevorg , Patricoski Jessica A. , Candido Kenneth D. , Knezevic Nebojsa Nick
Published: August 2020

Background:

Cervical nerve root avulsion is a well-documented result of high-velocity motor vehicle accidents (MVAs). In up to 21% of cases, preganglionic cervical root avulsion can result in a complex regional pain syndrome (CRPS) impacting the quality of life for patients already impaired by motor, sensory, and autonomic dysfunction. The optimal treatment strategies include repeated stellate ganglion blocks (SBGs).

Case Description:

A 43-year-old male sustained a high-velocity MVA resulting in the left C8 nerve root avulsion. This resulted in weakness in the C8 distribution, tactile allodynia, and dysesthesias. The magnetic resonance imaging demonstrated an abnormal signal ventral to the C8–T1 level. As the patient was not considered a candidate for surgical intervention secondary to the attendant brachial plexus injury, a C7–C8 epidural steroid injection was performed; this did not provide improvement. Before placing a spinal cord stimulator, the patient underwent a series of six ultrasound-guided SBGs performed 2 weeks apart; there was 75% improvement in pain and strength. Six years later, the patient continues to do well while receiving SBGs 4 times a year.

Conclusion:

A preganglionic cervical nerve root avulsion should not be a contraindication for a stellate ganglion block in a patient with established CRPS.
A convexity meningioma presenting with an acute subdural hematoma
Authors: Itani Masahiko , Shitara Satoshi , Akiyama Yoshinori
Published: August 2020

Background:

Meningiomas presenting with acute subdural hematomas are extremely rare. To the best of our knowledge, only 45 cases have been reported to date. We report on a case of a meningioma mimicking an acute subdural hematoma as well as a thorough literature review.

Case Description:

A 67-year-old man with no history of trauma was referred to our hospital with sudden onset of decreased level of consciousness and left hemiplegia. Computed tomography revealed an acute convexity subdural hematoma. Emergency surgery to remove the hematoma was performed. The hematoma was found to exist in the extra-axial space and the attached dura mater and pia mater remained intact. Pathological examination revealed a transitional meningioma, the World Health Organization Grade 1. Detailed medical history taken postoperatively revealed that a convexity meningioma had been diagnosed incidentally at another facility 1 year earlier.

Conclusion:

Acute subdural hematomas due to meningiomas are rare, and establishing the cause is challenging. Prompt and precise diagnosis of such entities may afford patients a better prognosis.
Mini-open thoracoscopic-assisted spinal thoracotomy for traumatic injuries: A technical note
Authors: Tandon Vikas , Mallepally Abhinandan Reddy , Peddaballe Ashok Reddy , Marathe Nandan , Chhabra Harvinder Singh
Published: August 2020

Background:

Mini-open thoracoscopic-assisted thoracotomy (MOTA) has been introduced to mitigate disadvantages of conventional open anterior or conventional posterior only thoracoscopic procedures. Here, we evaluated the results of utilizing the MOTA technique to perform anterior decompression/fusion for 22 traumatic thoracic fractures.

Methods:

There were 22 patients with unstable thoracic burst fractures (TBF) who underwent surgery utilizing the MOTA thoracotomy technique. Multiple variables were studied including; the neurological status of the patient preoperatively/postoperatively, the level and type of fracture, associated injuries, operative time, estimated blood loss, chest tube drainage (intercostal drainage), length of hospital stay (LOS), and complication rate.

Results:

In 22 patients (averaging 35.5 years of age), T9 and T12 vertebral fractures were most frequently encountered. There were 20 patients who had single level and 2 patients who had two-level fractures warranting corpectomies. Average operating time and blood loss for single-level corpectomy were 91.5 ± 14.5 min and 311 ml and 150 ± 18.6 min and 550 ml for two levels, respectively. Mean hospital stay was 5 days. About 95.45% of cases showed fusion at latest follow-up. Average preoperative kyphotic angle corrected from 34.2 ± 3.5° to 20.5 ± 1.0° postoperatively with an average correction of 41.1% and correction loss of 2.4%.

Conclusion:

We concluded that utilization of the MOTA technique was safe and effective for providing decompression/fusion of traumatic TBF.
Trabajo social y valoración gerontogeriátrica: tamizaje social en el Centro Gerontológico Guillermina Loor de Moreno
Authors: Giler Basurto Juan José , Alcivar Medranda Eva
Published: August 2020

El artículo planteó como objetivo determinar los procesos de intervención del equipo interdisciplinario en la valoración gerontogeriatrica de los residentes del Centro Gerontológico Guillermina Loor de Moreno. El trabajo consta de dos apartados interrelacionados entre sí: el primero describe la función que tiene el Trabajador Social en el Centro Gerontológico (Trabajo Social Gerontológico) como líder del equipo interdisciplinario, el segundo se centra en la valoración gerontogeriatrica que se obtiene a través del Plan de Intervención Individual Integral (PIII) que realizan los profesionales del equipo, quien actúa sujeto a la normativa técnica del Ministerio de Inclusión Económica y Social (MIES). Esto permitió entender y procesar mejor los protocolos de intervención en el campo del adulto mayor. Los métodos descriptivos - exploratorio, bibliográfico e inductivo-deductivo permitieron sintetizar la información de cada proceso, la técnica de la entrevista facilitó adquirir información relevante en la atención que reciben éste grupo vulnerable, planteando protocolos en la praxis para una mejor comprensión en los instrumentos de valoración. Para concluir, la presencia del Trabajador Social en el proceso de la valoración gerontogeriátrica es fundamental en la comprensión de los resultados ya que, por la interferencia social en la aplicación de la normativa técnica, minimiza y agilita el protocolo para la consecución del informe del tamizaje social en los adultos mayores.
Trabajo social y discapacidad: intervención desde el departamento de calificación del Ministerio de Salud Pública
Authors: Alava Barreiro Leila Maria , Calero Zambrano David Clotario
Published: August 2020

Se considera persona con discapacidad a aquellas que tienen deficiencias físicas, mentales, intelectuales y sensoriales a largo plazo, que, al interactuar con diversos contextos, puedan impedir su participación plena y efectiva en la sociedad, por ello, el objetivo de esta investigación consistió en analizar la intervención del Trabajador Social para el otorgamiento del carnet de discapacidad en el departamento de calificación del Ministerio de Salud Pública del Ecuador. Se utilizó una metodología de tipo no experimental, apoyado en el método descriptivo, bibliográfico; se aplicó el método lógico científico: inductivo-deductivo con enfoque cualitativo, lo que permitió cumplir con el objetivo planteado. Como resultado se tiene la intervención del profesional en Trabajo Socia la cual consiste en realizar la valoración social del usuario, en ésta se abordan factores socioeconómicos, individual y familiar, por medio de la matriz de baremo, la misma que permite otorgar una calificación que sumada a la del diagnóstico final del médico, se determina si aplica para otorgar o no el carné de discapacidad. A modo de conclusión se indica que la intervención del profesional en Trabajo Social, es fundamental, por ser un agente de cambio e inclusión social, el cual ejecuta actividades y procesos en búsqueda de mejoras en usuarios con discapacidad, disminuyendo barreras que limitan de forma directa su participación en sociedad.
Mediación comunitaria: un Espacio de Intervención del Trabajador Social en la Comunidad San Pedro de Sosote del cantón Rocafuerte
Authors: Romero Chavez Sandra Auxiliadora , Espinoza Zambrano Gabriela Jasmín
Published: August 2020

La mediación comunitaria es  una forma de solución ante  los conflictos sociales que presentan determinados grupos; y requiere de la voluntariedad de las partes en disputa  y de un tercero neutral que es un profesional certificado, según la Ley de Arbitraje y Mediación en el art.48 menciona que para estar habilitado como mediador independiente, deberá contarse con la autorización escrita de un centro de mediación. El objetivo del trabajo fue describir el proceso de mediación comunitaria para mejorar las relaciones de trabajo en la comunidad San Pedro de Sosote del Cantón Rocafuerte, Manabí, Ecuador,la misma que presentaba conflictos de comunicación, el diseño metodologico aplicado fue de campo con un enfoque mixto, cuantitativo-descriptivo apoyado en el método estadistico alcansando así lo  planteado,utilizando las técnicas de la observación, la entrevista estructurada y como instrumento la guia de entrevista, concluyendo  teóricamente en  los  aspectos que influyen en los conflictos entre los miembros de la  comunidad  artesanal y el gobierno local  que limitan  el desarrollo del sector  y la intervención comunitaria realizada por el Trabajador Social en la función de mediador; haciendo énfasis en el Modelo de Harvard cuyo aplicación  permitio  la creación de la nueva asociación que será parte del gremio artesanal.
Resiliencia de los adultos mayores del Centro Diurno Gerontológico “Cristo Rey” frente al abandono de sus familiares
Authors: Aveiga Macay Vicenta Inmaculada Ramona , Cedeño Aguayo Evelyn Lilibeth
Published: August 2020

El objetivo de este estudio fue demostrar la resiliencia de los adultos mayores del Centro Diurno Gerontológico ¨Cristo Rey¨ frente al abandono de sus familiares. Para realizar el proceso de investigación se desarrolló una revisión bibliográfica de diversos artículos científicos, de los cuales se obtuvo información relevante sobre la resiliencia en la vejez. La investigación descriptiva permitió explicar la realidad de los adultos mayores de la institución. Se utilizó el enfoque cuali-cuantitativo mediante el análisis de las técnicas de la entrevista realizada a veinte adultos mayores que asisten diariamente al centro y un cuestionario de seis interrogantes a cincuenta adultos mayores que se encuentran registrados en el mismo. Este instrumento fue estructurado por las autoras como resultado de la interpretación de estudios realizados sobre la resiliencia y el análisis de la conjunción entre el modelo de las verbalizaciones de Grotberg (yo soy, yo estoy, yo tengo, yo puedo) y la Escala de Resiliencia desarrollada por Eugenio Saavedra y Marco Villalta en el año 2008, en donde los resultados obtenidos pudieron evidenciar que en el proceso del envejecimiento, el adulto mayor en la ciudad de Portoviejo se muestra afectado de manera emocional, física y mentalmente por motivo del abandono de sus familiares. Por ende, la labor del trabajador social del Centro Diurno “Gerontológico Cristo Rey” es conocer y transformar la realidad del mismo, de tal modo que es necesario poseer la mayor cantidad de datos para realizar un buen diagnóstico y orientación que permita dar respuesta a las necesidades de acuerdo a los recursos disponibles y de esta manera promover un envejecimiento activo.
Pensamiento Crítico, Resolución de problemas y Comprensión lectora en ingresantes a la universidad
Authors: Yarlequé Chocas Luis Alberto , Javier Alva Leda , Nuñez LLacuachaqui Edith Rocío , Navarro García Linda Loren , Padilla Sánchez Maribel
Published: August 2020

Se trató de establecer sí, a un mayor nivel de desarrollo del pensamiento crítico corresponde también mayor capacidad para resolver problemas y mayor nivel de comprensión lectora en ingresantes a la universidad. Se empleó el método descriptivo, con diseño descriptivo correlacional. Se trabajó con 513 ingresantes a la Universidad Nacional del Centro del Perú, de ocho facultades, tomados por accesibilidad y consentimiento informado. Los instrumentos fueron desarrollados por los investigadores. Algunos resultados y conclusiones fueron, que el 35,09% ingresan con bajo nivel de pensamiento crítico; que en las mujeres esta competencia está más desarrollada que en los varones; que el 57.89% de ingresantes tienen bajo nivel en la capacidad de resolución de problemas y que en eso no hay diferencias por sexo; el 33.528 se encuentra  en el nivel bajo  en  comprensión lectora; que las mujeres también superan a los varones en ésta y, que el pensamiento crítico, está asociado con aquella significativamente según el coeficiente gamma de Goodman y Kruskal (Gamma= 0.189 y P. valor = 0.00 < 0.05). De ello, se desprende que, para ingresar a la universidad no es requisito indispensable tener desarrollado el pensamiento crítico, la capacidad para resolver problemas ni la comprensión lectora, lo cual acusa una seria limitación en el proceso de selección.
Violencia obstétrica en la etapa de embarazo, parto y puerperio, en el hospital regional Dr. Verdi Cevallos Balda, período 2019 – 2020
Authors: Basurto Mendoza Gema Priscila , Alcivar Medranda Eva
Published: August 2020

Un factor importante durante la etapa del embarazo es disponer de un estado emocional adecuado que permita la evolución sin obstrucción reflejada por algún tipo de violencia por ello, esta investigación propone caracterizar la violencia obstétrica en la etapa de embarazo, parto y puerperio en el hospital regional Dr. Verdi Cevallos Balda periodo 2019 – 2020.  Para ello se utilizó un tipo de estudio no experimental, con un enfoque cuali - cuantitativo; apoyados con los métodos, estadístico, bibliográfico, analítico, descriptivo, se utilizó técnicas como la entrevista y la encuesta, con los instrumentos: la guía de entrevista y cuestionario, en una población y muestra de 210 mujeres atendidas en el área de ginecología del hospital. Como resultados se obtuvo que, con el 74% las mujeres en el proceso de puerperio, se han sentido deprimidas, mientras que con el 5% se han sentido intimidadas por algún profesional del hospital. Para concluir, este trabajo pone de manifiesto que existe violencia durante la etapa del embarazo, parto y puerperio, si bien esta no se atribuye a factores físicos, si implica características psicológicas, reflejadas en el hospital por parte del personal de salud, quienes están inmersos en la atención que se brinda a usuarios.
Análisis de reportajes publicados por el diario The New York Times en redes sociales sobre la realidad de América Latina en 2017
Authors: Gonzales García Carlos Ricardo
Published: August 2020

La presente investigación aborda el tratamiento informativo, interpretativo y opinativo que un importante e influyente medio internacional, The New York Times (edición en español), brindó sobre la realidad de América Latina a través de sus reportajes durante 2017. Para tal efecto, se hizo uso del esquema a nivel superestructural desarrollado por Teun van Dijk (1990) y de los juicios interpretativos y categóricos propuestos por Santamaría y Casals (2000) para analizar las historias publicadas por dicho diario en Internet a través de sus redes sociales. Entre los principales hallazgos, se encontró que este periódico destaca, a profundidad, el esfuerzo heroico de los latinoamericanos por la pacificación interna en determinadas zonas de conflicto, tanto de México como de Colombia. Asimismo, se vale de testimonios personales para denunciar casos de espionaje y medio ambiente.
Hacia un ordenamiento de los constructos de las “ciencias de la comunicación"
Authors: Castillo Hilario Mario Buenaventura
Published: August 2020

El objetivo de la investigación fue identificar y ordenar los constructos de la llamada “ciencias de la comunicación”. Para ello, se realizó una revisión sistemática de la bibliografía. Se concluye que existen cuatro tipos de constructos autónomos e independientes: técnicos, normativos, científicos y filosóficos.
La imagen, la cultura y la política en el proceso electoral extraordinario 2020 en Arequipa Perú
Authors: Cusihuamán Sisa Gregorio Nicolás , Aguilar Del Carpio Carlos Ilich , Alarcón Condori Javier Guido
Published: August 2020

La investigación realizada examina el símbolo, la cultura política, así como la imagen de los candidatos y partidos políticos en el proceso electoral extraordinario al Congreso de la Republica, realizado en enero del presente año en Perú; lo hace desde una perspectiva de la comunicación política. El objetivo es demostrar el nivel de articulación de los factores que construyen una sociedad democrática en un proceso electoral, reconociendo que las relaciones entre cultura y política tienen larga data, sin embargo, los niveles de articulación en el lenguaje político tienen su expresión en la imagen que proyectan a la sociedad, siendo esa la razón fundamental del artículo. La metodología descriptiva aplicada combina técnicas de análisis de formatos de observación de la imagen con entrevistas Delphi, generando resultados cuali-cuantitativos. Las conclusiones muestran una desarticulación de elementos concomitantes en la consolidación del orden político democrático, la percepción de una mono-cultura encaminada a resolver la coyuntura sin perspectiva de largo plazo, la desideologización de las organizaciones políticas y el predominio de la imagen del “líder” sobre la del partido es una constante que debilita el fortalecimiento institucional de las organizaciones políticas.
Construcción de un instrumento para conocer las condiciones laborales de los artistas peruanos
Authors: Yangali Vargas Jorge Luis , Reymundo Vega Juan , Daga Salazar Rusel Hilario , Ramos Aliaga Adolfo , Mayta Salomé Gina
Published: August 2020

El presente artículo corto es preliminar del proyecto de investigación que consiste en estudiar las condiciones laborales de los artistas peruanos. Nuestro objetivo es presentar a la comunidad académica la construcción de una guía de encuesta que permita ahondar en la problemática laboral de los mismos. Metodológicamente se siguieron los pasos precisados por la metodología científica; esto es la validación del contenido mediante juicio de expertos y la aplicación de una prueba piloto que permitió determinar un valor de confiabilidad de α = 0.911 de los ítems formulados en este instrumento. La guía de encuesta combina preguntas abiertas y cerradas con la finalidad de recabar además de datos cuantitativos, narrativas de la experiencia laboral.
Proceso de terapia existencial de artes expresivas
Authors: Mayorga González José Miguel , Méndez Pérez Natalia Roció
Published: August 2020

El estudio se orientó a comprender el  proceso de la Terapia Existencial de Artes Expresivas, explorando a partir de un análisis documental temas como la imaginación, la experiencia, las modalidades de expresión, la experimentación pobre, todo lo anterior, desde una mirada fenomenológico-existencial, centrada en lograr acompañar al consultante a explorar y comprender la existencia como un continuo y complejo misterio relacional, que requiere ser reflexionado constantemente, para asumir  la vida con apropiación y responsabilidad.
CONSTRAINTS AND LOYALTY OF THE PARTICIPANTS IN RECREATIONAL DANCING ACTIVITIES
Authors: Goulimaris Dimitris , Darginidou Lemonia , Genti Maria
Published: August 2020

The aim of this work was to examine the factorial validity of the «leisure constraints scale» by Alexandris and Carroll (1997a) and the investigation of the relationship between the constraining factors of attendance and the participants’ loyalty to leisure dancing activities. The sample of the study was 318 adults who participated in traditional dancing classes organized by cultural associations. The «leisure constraint scale» (Alexandris & Carroll, 1997a) and a conversion of the «loyalty» subscale was used for the investigation of the constraining factors and loyalty as suggested by Zeithaml, Berry and Parasuraman (1996). The data supported the factor structure and the internal consistency of the leisure constraints scale. It was also found that there is a reverse relation of loyalty with five factors of the leisure constraints scale. Generally, it appears that the participants experience the constraining factors of attendance to dancing activities with low intensity.
DIMINISHING OF TRUE POWER LOSS BY APIDAE ALGORITHM
Authors: Lenin K.
Published: August 2020

In this paper, Apidae Algorithm (AA) is proposed for solving reactive power problem. Apidae Algorithm, inspired from the natural foraging behaviour of Apidae, & it has been utilized to solve the reactive power problem. The AA algorithm carry out the intensified neighbourhood search united with a random mode exploration search. Efficiency of the projected Apidae Algorithm (AA) is validated by evaluating in standard IEEE 118, 300 bus test systems. Simulated outcomes shows that active power loss has been reduced with variables are within the limits.
ANALYSIS OF DIFFERENCES IN LEAD LEVELS (PB) IN BLOOD AND BONE DENSITY BEFORE AND AFTER CONSUMPTION OF GREEN COCONUT WATER AND MILK IN WORKERS AT THE "X" PAINTING BODY
Authors: Iyou Ismelda , Wahyuningsih Nur Endah , Sulistiyani
Published: August 2020

Background: Lead (Pb) becomes toxic to osteoblast cells and osteoclasts that affect the biology and deposition of bone mineral, thereby boosting the risk of osteoporosis. Green coconut water contains the highest tannins or antidotum (anti toxins), recommended for consumption for people exposed to heavy metals. While milk naturally contains essential nutrients to help control the regeneration of bone cells and strengthen bones.

Method: This research is a quasi experimental research using the one group pretest and posttest design. The number of research samples are 30 people who were given treatment of green coconut water and milk as much as 250 ml alternately for 10 days

Result: Before the intervention of the lead category in the blood of the respondents exceeded the threshold value of NIOSH (10 μg / dL), ie 23 people averaged 14.04 μg / dL and after intervention decreased to 7 people on average 11.88 μg / dL. The categories of osteopenia before intervention were 8 respondents averaging -0.59 and after intervention decreased ie 4 respondents average -1.90.

Conclusion: There was a difference of Pb levels in blood before and after consumption of green coconut water and milk with p value = 0,001 (p value <0,05). There was a difference of bone density before and after consumption of green coconut water and milk with p value = 0,000 (p value <0,05).
BIOMAGNETISM AS FACTOR IN RED BLOOD CELLS DEFORMATION
Authors: Embi Bs Abraham A.
Published: August 2020

The purpose of this manuscript is to report in vitro experiments showing the role of pulsed biomagnetic fields tissues cross-talk between Red Blood Cells (RBCs) and human hairs. Both tissues have been reported to express magnetic properties, ie: RBCs diamagnetic and paramagnetic forces and the hair follicle pulsed diamagnetic forces. This biomagnetic cross-talk is reported as a novel factor in RBCs deformation. In the in vitro experimental model herein used, other forces such as keratin biomagnetism, hydrophilic and hydrophobic properties of the hair shaft may also play a role in the deformation. Presently teardrop red blood cells found in blood smears; and oriented in the same direction are attributed to mechanical artifacts introduced during slide preparations. The data presented in this manuscript supports the new principle of biomagnetic cross talk forces as factor in replicating RBCs deformities.as described in Optical Tweezers Trapping.
THE INFLUENCE OF CUTTING PARAMETERS ON THE DYNAMIC STABILITY PERFORMANCE OF FINISHING CNC MACHINES
Authors: Popescu Daniel
Published: August 2020

The paper describes the influence of the cutting regime parameters on the dynamic stability reserve of CNC finishing machines. For this purpose it is used an experimental stand comprised of transducers for measuring tool and workpiece rotation speeds, as well as a measuring device for the dynamic components of the cutting force (Ft, Fx). The processed materials are steel, bronze and cast iron. Finally there is presented the variation pattern of these parameters and their influence on the finishing process productivity.
The Influence of Particle Size and Reinforcement Rate of B4C on Mechanical and Microstructure Properties of Al-B4C Composites
Authors: ŞENEL Mahmut Can , GÜRBÜZ Mevlüt
Published: September 2020

In this study, Al-B4C composites were produced with various particle sizes (B4C: 3.5 and 20 µm) and reinforcement rates (B4C%: 1, 3, 6, 9, 12, 15, 30%) by the powder metallurgy method. The apparent density, compressive strength, and Vickers hardness of the composites were determined by Archimedes’ density meter, universal test machine, and micro Vickers hardness measurement device, respectively. The phase and microstructural analysis of the fabricated composites were analyzed using an X-ray diffraction device and scanning electron microscope, respectively. From the test results, the highest micro Vickers hardness (68.8 HV), apparent density (2.61 g/cm3), compressive strength (242 MPa), and minimum porosity (1.4%) were determined at 3.5 µm particle size and 30% reinforcement rate of B4C. The enhancement in Vickers hardness and compressive strength of Al-30%B4C composite was detected as +129.3% and +165.9% compared with pure aluminum.
ANALISIS SOFT STARTING METODA PWM UNTUK MOTOR INDUKSI 3 FASE 37 KW
Authors: Hidayat Andi Akbar , Nrartha I Made Ari , Nababan Sabar
Published: August 2020

Motor induksi banyak digunakan dalam aplikasi di lingkungan rumah tangga sampai di industri-industri besar. Arus starting motor induksi mencapai 5 sampai 7 kali dari arus beban penuh yang mengakibatkan jatuh tegangan yang akan mengganggu peralatan lain yang dihubungkan pada saluran yang sama. Arus starting pada motor induksi dapat dikurangi dengan soft starting metoda PWM. Soft starting metoda PWM dilakukan menggunakan komponen elektronika daya yaitu IGBT. Tegangan masukan motor induksi diatur dengan memberikan sinyal PWM pada IGBT dengan waktu dan tahapan duty cycle tertentu dengan frekuensi PWM tertentu yang diatur oleh model PWM. Arus starting RMS maksimal pada metoda DOL sebesar 619.45 A dapat dikurangi hingga 109.6 A dengan soft starting metoda PWM dengan frekuensi PWM 200 Hz pada waktu soft starting 25 detik. Pengukuran %THD menunjukkan semakin besar frekuensi PWM maka %THD arus duty cycle 55% akan semakin kecil dan %THD tegangan duty cycle 55% akan tetap bernilai 90.45%.
Sistem Panel Surya menggunakan Synchronous Buck Converter dengan Teknik MPPT
Authors: Bachtiar Pungky Habib
Published: August 2020

Panel surya merupakan pengonversi energi matahari menjadi energi listik yang bergantung dengan iradiasi matahari yang berubah-ubah karena kondisi cuaca mengakibatkan daya keluaran menjadi fluktuatif. Metode Pelacakan titik daya maksimum (MPPT) Peturb and Observe (P&O) banyak digunakan untuk sistem Panel surya untuk memaksimalkan daya yang mapu dihasilkan panel surya. Pada sistem Panel Surya, konverter DC-DC digunakan sebagai penghubung antara panel surya dengan baterai. Synchronous Buck Converter merupakan konverter DC-DC diciptakan untuk menghilangkan rugi daya Forward Dioda pada Buck Converter konvensional, yang digantikan dengan MOSFET. Synchronous Buck Converter yang digunakan memiliki efisiensi rata-rata sebesar 83,63% pada rentang siklus kerja 10% hingga 90% Sistem Panel Surya 50 Wp menggunakan Sycnchronous Buck Convertermenggunakan  Teknik MPPT dengan pengujian ±6 jam mampu menghasilkan energi ± 117,67 Wh dengan efisiensi rata-rata 90,35%.
RANCANG BANGUN SMART kWh METER 3 FASE DENGAN KOMUNIKASI SMS GATEWAY
Authors: Citarsa Ida Bagus Fery , Nrartha I Made Ari , Hidayat Rahman
Published: August 2020

Smart kWh meter 3 fase yang dirancang merupakan sebuah alat ukur energi listrik 3 fase yang dapat berkomunikasi dengan penggunanya sehingga memudahkan dalam pengoperasiannya. Alat ini nantinya dapat diletakkan di gardu distribusi PLN untuk mengetahui berapa energi yang disalurkan. Hasil pengujian Smart kWh meter 3 fase yang dirancang menunjukkan bahwa selisih pengukuran antara sistem monitoring yang dibuat dengan alat ukur Watt Meter DW-6163 memiliki persentase kesalahan (error) rata-rata yang rendah untuk Vrms, Irms, Daya, dan Factor daya berturut-turut pada fase R, S, dan T. Berdasarkan nilai error dihasilkan, alat yang diancang termasuk golongan kelas 1.0 menurut standar IEC No. 13B-23 dan dapat digunakan pada panel 50 kVA. Selain itu waktu rata-rata yang dibutuhkan oleh smart kWh meter untuk mengirimkan data ke pengguna cukup singkat dari 10 kali pengiriman data yang dilakukan.
RANCANG BANGUN ALAT UKUR RLC METER BERBASIS ARDUINO MEGA
Authors: Seniari NI Made , Adnyani I A Sri , Saputra Ahmad Sandi Yayan
Published: August 2020

Dalam dunia elektronika di tuntut pengurukuran dengan ketelitian yang tinggi.  Misalanya dalam pengukuran elemen pasif seperti  Resistor, Induktor dan Kapasitor. Pengukuran ke tiga element tersebut  umumnya menggunakan alat ukur sendiri-sendiri,  yaitu Ohm meter,  induktasi meter dan kapasitansi meter. Ketiga peralatan tersebut yang sudah ada di pasaran berbentuk digital maupun analog, menggunakan range pengukuran yang terbatas, sulit di lakukan perbaikan dengan presisi yang bagus bila mengalami kerusakan. System kerja alat ukur tersebut ada yang menggunakan sifat muai panjang dari logam,  mengandalkan arus induksi,   serta  konstruksinya relative rumit. Untuk itu perlu perancangan alat ukur yang dapat mengukur Resistor, Induktor dan Kapasitor dengan satu alat ukur, range pengukuran yang lebih fleksibel dan konstruksi alat ukur yang lebih sederhana, serta metode pengukuran lebih modern dengan menggunakan softwear. Dengan menggunakan teori pembagian arus, pembagian tegangan, pengisian dan pengosongan kapasitor, dipadukan dengan kemampuan dari mikrokontroller Arduino Mega2560 (datasheet ATmega2560), yang memiliki 54 pin digital input/output, maka pengukuran elemen pasif menjadi lebih sederhana dan ketelitian dapat di seting. Penuliskan source program, kompilasi, upload hasil kompilasi dan uji coba secara terminal serial digunakan perangkat lunak Integrated Development Environment (IDE). Rangkaian pengukurnya dirancang pada software Fritzing, dan nilai hasil pengukuran  di tampilkan di LCD (Liquid Chrystal Display) secara digital.