bluuebunny/crossref_metadata_2025 huggingface dataset:
Usability and Practicality of a Novel Mobile Attachment for Aural Endoscopy (endoscope-i): Formative Usability Study (Preprint)
Authors: Williams Rowena , Lee Jonathan Daw Ern , Muzaffar Jameel , Clutton-Brock Tom , Coulson Chris
Published: March 2020

BACKGROUND

Our aims were to determine the usability and practicality of the endoscope-i system, a novel mobile attachment for aural endoscopy. This incorporated assessing the ease of use of the endoscope-i for different professionals, and ultimately improving the system by receiving constructive feedback.

OBJECTIVE

Our objectives were to assess the ease of the endoscope-i system in conducting an aural examination and to assess its feasibility for integrating its use into clinical practice. We looked to assess its ease, effectiveness, and efficiency; to compare this to current practices with otoscopes; and to determine whether participants perceived the system to be able to produce an image of sufficient quality to make a clinical assessment. Finally, we wanted to assess the usefulness of the current training given for using the system, and we sought to gain feedback for the product from the differing specialists.

METHODS

A formative usability study of the endoscope-i system was conducted with 5 health care professionals. Each session lasted 40 minutes and involved audio/video consent, a hands-on session, a private semistructured interview, and an option to discuss the device with a company representative.

RESULTS

All participants found the endoscope-i system easy to use. The image quality was perceived to be greater than that achieved by current otoscopes. The ability to record images and view them retrospectively was also seen as a positive.

CONCLUSIONS

This study has not identified any significant issues relating to the design, functionality, or application of the endoscope-i. Participants perceived the system as superior to current options with a directly positive impact on their clinical practice.
Rural Residents’ Perspectives on an mHealth or Personalized Health Coaching Intervention: Qualitative Study With Focus Groups and Key Informant Interviews (Preprint)
Authors: Schoenberg Nancy , Dunfee Madeline , Yeager Hannah , Rutledge Matthew , Pfammatter Angela , Spring Bonnie
Published: March 2020

BACKGROUND

Compared with national averages, rural Appalachians experience extremely elevated rates of premature morbidity and mortality. New opportunities, including approaches incorporating personal technology, may help improve lifestyles and overcome health inequities.

OBJECTIVE

This study aims to gather perspectives on whether a healthy lifestyle intervention, specifically an app originally designed for urban users, may be feasible and acceptable to rural residents. In addition to a smartphone app, this program—Make Better Choices 2—consists of personalized health coaching, accelerometer use, and financial incentives.

METHODS

We convened 4 focus groups and 16 key informant interviews with diverse community stakeholders to assess perspectives on this novel, evidence-based diet and physical activity intervention. Participants were shown a slide presentation and asked open-ended follow-up questions. The focus group and key informant interview sessions were audiotaped, transcribed, and subjected to thematic analysis.

RESULTS

We identified 3 main themes regarding Appalachian residents’ perspectives on this mobile health (mHealth) intervention: personal technology is feasible and desirable; challenges persist in implementing mHealth lifestyle interventions in Appalachian communities; and successful mHealth interventions should include personal connections, local coaches, and educational opportunities. Although viewed as feasible and acceptable overall, lack of healthy lifestyle awareness, habitual behavior, and financial constraints may challenge the success of mHealth lifestyle interventions in Appalachia. Finally, participants described several minor elements that require modification, including expanding the upper age inclusion, providing extra coaching on technology use, emphasizing personal and supportive connections, employing local coaches, and ensuring adequate educational content for the program.

CONCLUSIONS

Blending new technologies, health coaching, and other features is not only acceptable but may be essential to reach vulnerable rural residents.
Text Processing for Detection of Fungal Ocular Involvement in Critical Care Patients: Cross-Sectional Study (Preprint)
Authors: Baxter Sally L , Klie Adam R , Radha Saseendrakumar Bharanidharan , Ye Gordon Y , Hogarth Michael
Published: March 2020

BACKGROUND

Fungal ocular involvement can develop in patients with fungal bloodstream infections and can be vision-threatening. Ocular involvement has become less common in the current era of improved antifungal therapies. Retrospectively determining the prevalence of fungal ocular involvement is important for informing clinical guidelines, such as the need for routine ophthalmologic consultations. However, manual retrospective record review to detect cases is time-consuming.

OBJECTIVE

This study aimed to determine the prevalence of fungal ocular involvement in a critical care database using both structured and unstructured electronic health record (EHR) data.

METHODS

We queried microbiology data from 46,467 critical care patients over 12 years (2000-2012) from the Medical Information Mart for Intensive Care III (MIMIC-III) to identify 265 patients with culture-proven fungemia. For each fungemic patient, demographic data, fungal species present in blood culture, and risk factors for fungemia (eg, presence of indwelling catheters, recent major surgery, diabetes, immunosuppressed status) were ascertained. All structured diagnosis codes and free-text narrative notes associated with each patient’s hospitalization were also extracted. Screening for fungal endophthalmitis was performed using two approaches: (1) by querying a wide array of eye- and vision-related diagnosis codes, and (2) by utilizing a custom regular expression pipeline to identify and collate relevant text matches pertaining to fungal ocular involvement. Both approaches were validated using manual record review. The main outcome measure was the documentation of any fungal ocular involvement.

RESULTS

In total, 265 patients had culture-proven fungemia, with Candida albicans (n=114, 43%) and Candida glabrata (n=74, 28%) being the most common fungal species in blood culture. The in-hospital mortality rate was 121 (46%). In total, 7 patients were identified as having eye- or vision-related diagnosis codes, none of whom had fungal endophthalmitis based on record review. There were 26,830 free-text narrative notes associated with these 265 patients. A regular expression pipeline based on relevant terms yielded possible matches in 683 notes from 108 patients. Subsequent manual record review again demonstrated that no patients had fungal ocular involvement. Therefore, the prevalence of fungal ocular involvement in this cohort was 0%.

CONCLUSIONS

MIMIC-III contained no cases of ocular involvement among fungemic patients, consistent with prior studies reporting low rates of ocular involvement in fungemia. This study demonstrates an application of natural language processing to expedite the review of narrative notes. This approach is highly relevant for ophthalmology, where diagnoses are often based on physical examination findings that are documented within clinical notes.

CLINICALTRIAL
An Iterative Process for Identifying Pediatric Patients With Type 1 Diabetes: Retrospective Observational Study (Preprint)
Authors: Morris Heather Lynne , Donahoo William Troy , Bruggeman Brittany , Zimmerman Chelsea , Hiers Paul , Zhong Victor W , Schatz Desmond
Published: March 2020

BACKGROUND

The incidence of both type 1 diabetes (T1DM) and type 2 diabetes (T2DM) in children and youth is increasing. However, the current approach for identifying pediatric diabetes and separating by type is costly, because it requires substantial manual efforts.

OBJECTIVE

The purpose of this study was to develop a computable phenotype for accurately and efficiently identifying diabetes and separating T1DM from T2DM in pediatric patients.

METHODS

This retrospective study utilized a data set from the University of Florida Health Integrated Data Repository to identify 300 patients aged 18 or younger with T1DM, T2DM, or that were healthy based on a developed computable phenotype. Three endocrinology residents/fellows manually reviewed medical records of all probable cases to validate diabetes status and type. This refined computable phenotype was then used to identify all cases of T1DM and T2DM in the OneFlorida Clinical Research Consortium.

RESULTS

A total of 295 electronic health records were manually reviewed; of these, 128 cases were found to have T1DM, 35 T2DM, and 132 no diagnosis. The positive predictive value was 94.7%, the sensitivity was 96.9%, specificity was 95.8%, and the negative predictive value was 97.6%. Overall, the computable phenotype was found to be an accurate and sensitive method to pinpoint pediatric patients with T1DM.

CONCLUSIONS

We developed a computable phenotype for identifying T1DM correctly and efficiently. The computable phenotype that was developed will enable researchers to identify a population accurately and cost-effectively. As such, this will vastly improve the ease of identifying patients for future intervention studies.
Adherence of the #Here4U App – Military Version to Criteria for the Development of Rigorous Mental Health Apps (Preprint)
Authors: Linden Brooke , Tam-Seto Linna , Stuart Heather
Published: March 2020

BACKGROUND

Over the past several years, the emergence of mobile mental health apps has increased as a potential solution for populations who may face logistical and social barriers to traditional service delivery, including individuals connected to the military.

OBJECTIVE

The goal of the #Here4U App – Military Version is to provide evidence-informed mental health support to members of Canada’s military community, leveraging artificial intelligence in the form of IBM Canada’s Watson Assistant to carry on unique text-based conversations with users, identify presenting mental health concerns, and refer users to self-help resources or recommend professional health care where appropriate.

METHODS

As the availability and use of mental health apps has increased, so too has the list of recommendations and guidelines for efficacious development. We describe the development and testing conducted between 2018 and 2020 and assess the quality of the #Here4U App against 16 criteria for rigorous mental health app development, as identified by Bakker and colleagues in 2016.

RESULTS

The #Here4U App – Military Version met the majority of Bakker and colleagues’ criteria, with those unmet considered not applicable to this particular product or out of scope for research conducted to date. Notably, a formal evaluation of the efficacy of the app is a major priority moving forward.

CONCLUSIONS

The #Here4U App – Military Version is a promising new mental health e-solution for members of the Canadian Armed Forces community, filling many of the gaps left by traditional service delivery.
Ambulatory Blood Pressure Phenotypes in Adults Taking Antihypertensive Medication with and without CKD
Authors: Mwasongwe Stanford E. , Tanner Rikki M. , Poudel Bharat , Pugliese Daniel N. , Young Bessie A. , Abdalla Marwah , Musani Solomon K. , Gutiérrez Orlando M. , Correa Adolfo , Shimbo Daichi , Muntner Paul
Published: March 2020

Background and objectives

Recent guidelines recommend out-of-clinic BP measurements.

Design, setting, participants, & measurements

We compared the prevalence of BP phenotypes between 561 black patients, with and without CKD, taking antihypertensive medication who underwent ambulatory BP monitoring at baseline (between 2000 and 2004) in the Jackson Heart Study. CKD was defined as an albumin-to-creatinine ratio ≥30 mg/g or eGFR <60 ml/min per 1.73 m2. Sustained controlled BP was defined by BP at goal both inside and outside of the clinic and sustained uncontrolled BP as BP above goal both inside and outside of the clinic. Masked uncontrolled hypertension was defined by controlled clinic-measured BP with uncontrolled out-of-clinic BP.

Results

CKD was associated with a higher multivariable-adjusted prevalence ratio for uncontrolled versus controlled clinic BP (prevalence ratio, 1.44; 95% CI, 1.02 to 2.02) and sustained uncontrolled BP versus sustained controlled BP (prevalence ratio, 1.66; 95% CI, 1.16 to 2.36). There were no statistically significant differences in the prevalence of uncontrolled daytime or nighttime BP, nondipping BP, white-coat effect, and masked uncontrolled hypertension between participants with and without CKD after multivariable adjustment. After multivariable adjustment, reduced eGFR was associated with masked uncontrolled hypertension versus sustained controlled BP (prevalence ratio, 1.42; 95% CI, 1.00 to 2.00), whereas albuminuria was associated with uncontrolled clinic BP (prevalence ratio, 1.76; 95% CI, 1.20 to 2.60) and sustained uncontrolled BP versus sustained controlled BP (prevalence ratio, 2.02; 95% CI, 1.36 to 2.99).

Conclusions

The prevalence of BP phenotypes defined using ambulatory BP monitoring is high among adults with CKD taking antihypertensive medication.
Association of 24-Hour Ambulatory Blood Pressure Patterns with Cognitive Function and Physical Functioning in CKD
Authors: Ghazi Lama , Yaffe Kristine , Tamura Manjula K. , Rahman Mahboob , Hsu Chi-yuan , Anderson Amanda H. , Cohen Jordana B. , Fischer Michael J. , Miller Edgar R. , Navaneethan Sankar D. , He Jiang , Weir Matthew R. , Townsend Raymond R. , Cohen Debbie L. , Feldman Harold I. , Drawz Paul E. ,   the CRIC Study Investigators
Published: March 2020

Background and objectives

Hypertension is highly prevalent in patients with CKD as is cognitive impairment and frailty, but the link between them is understudied. Our objective was to determine the association between ambulatory BP patterns, cognitive function, physical function, and frailty among patients with nondialysis-dependent CKD.

Design, setting, participants, & measurements

Ambulatory BP readings were obtained on 1502 participants of the Chronic Renal Insufficiency Cohort. We evaluated the following exposures: (1) BP patterns (white coat, masked, sustained versus controlled hypertension) and (2) dipping patterns (reverse, extreme, nondippers versus normal dippers). Outcomes included the following: (1) cognitive impairment scores from the Modified Mini Mental Status Examination of <85, <80, and <75 for participants <65, 65–79, and ≥80 years, respectively; (2) physical function, measured by the short physical performance battery (SPPB), with higher scores (0–12) indicating better functioning; and (3) frailty, measured by meeting three or more of the following criteria: slow gait speed, muscle weakness, low physical activity, exhaustion, and unintentional weight loss. Cognitive function and frailty were assessed at the time of ambulatory BP (baseline) and annually thereafter. SPPB was assessed at baseline logistic and linear regression and Cox discrete models assessed the cross-sectional and longitudinal relationship between dipping and BP patterns and outcomes.

Results

Mean age of participants was 63±10 years, 56% were male, and 39% were black. At baseline, 129 participants had cognitive impairment, and 275 were frail. Median SPPB score was 9 (interquartile range, 7–10). At baseline, participants with masked hypertension had 0.41 (95% CI, −0.78 to −0.05) lower SPPB scores compared with those with controlled hypertension in the fully adjusted model. Over 4 years of follow-up, 529 participants had incident frailty, and 207 had incident cognitive impairment. After multivariable adjustment, there was no association between BP or dipping patterns and incident frailty or cognitive impairment.

Conclusions

In patients with CKD, dipping and BP patterns are not associated with incident or prevalent cognitive impairment or prevalent frailty.
Administración y preparación de antimicrobianos en una unidad chilena de cuidados neonatales
Authors: Cruz F. , Gálvez P.
Published: March 2020

Objetivo: Describir la preparación, administración y monitorización de los antimicrobianos utilizados en una Unidad de Cuidados Neonatales en Santiago de Chile.
Métodos: Estudio descriptivo. Se realizó la aplicación de un instrumento a 20 matronas de neonatología de una Unidad Chilena de Cuidados Neonatales (UCHCN) en 2018, para recopilar información respecto a once variables en la preparación y administración de antimicrobianos. El estudio abarcó tres variables principales: preparación, mantención y monitorización de los antimicrobianos.
Resultados: Se recopiló información de 14 antimicrobianos, de los cuales la presentación del 92.8% de ellos era inyectable y el 78.2% de los encuestados reconocía el valor de la unidad de dosificación del medicamento. Mantención 85.7% de los antimicrobianos son eliminados luego de su preparación. Para dilución se utiliza mayormente la solución fisiológica en un 76.9% de los casos y el volumen utilizado de diluyente y concentración final varió según cada medicamento. Un 92.8% de los antimicrobianos se administra por vía endovenosa y todos a través de una bomba de jeringa. Monitorización específica de la administración sólo se realiza en un 7.2% de ellos.
Conclusiones: Debido a las variabilidades encontradas en los procesos de mantención, dilución y monitorización es que se propone la creación o el mejoramiento y difusión de protocolos locales, para evitar efectos adversos o complicaciones y así resguardar la seguridad de los pacientes.
Conocimientos, actitudes y motivaciones respecto a la afiliación al colegio de enfermeras en docentes universitarios
Authors: Fernández-Silva C.A. , Riquelme-Rivera M.I. , Cannobbio-Chiguay C.A. , Pilquinao B.
Published: March 2020

Introducción: La participación en el colegio de enfermeras es una instancia relevante para el desarrollo de la profesión a nivel país, debido a la defensa que realiza por la enfermería desde los diferentes ámbitos de actuación; es indispensable inculcar esta visión desde la formación universitaria a través de los profesionales de enfermería que se dedican a la docencia. Materiales y métodos: Se realizó un estudio cuantitativo, transeccional y correlacional, en 49 académicos de las diferentes casas de estudio de la ciudad de Puerto Montt-Chile, en quienes se evaluó su afiliación al colegio de enfermeras, además de sus conocimientos, actitudes y motivaciones respecto a participar en dicha instancia gremial; para tal fin se aplicó un instrumento de elaboración propia (α Cronbach 0.71). Resultados: Se encontró que el 40.9% de los docentes está afiliado al colegio de enfermeras y que existe conocimiento suficiente respecto a esta organización, con una actitud desfavorable hacia el mismo, evidenciándose asociación entre la actitud y aspectos como la dinámica de trabajo (p=0.043 Correlación de Spearman: 0.158) y la afiliación al colegio (p=0.02 Coeficiente de Spearman: 0.142). Discusión: La participación colegiada permite el fortalecimiento de la profesión, además de favorecer la visibilidad, liderazgo e identidad profesional; aunque se reconocen estos aspectos no son suficientes para generar la afiliación o una actitud favorable a ésta. Conclusiones: En la promoción de la afiliación debe considerarse la tendencia a no afiliación de los docentes más jóvenes y los aspectos de motivación, ambos relevantes para destacar la participación colegial como un aspecto deontológico que forma parte del modelaje hacia los enfermeros en formación.
Incremento del conocimiento en soporte vital básico facilitado por un recurso educativo digital
Authors: Blanco-Ávila D. , Gómez-Leal J. , Sáenz-Montoya X.
Published: March 2020

Introducción: La enfermedad cardiovascular es responsable de 17.3 millones de muertes por año en el mundo y conlleva a complicaciones como el paro cardiorrespiratorio, el cual se puede presentar tanto en el escenario intra como extrahospitalario. Tener una comunidad capacitada posibilita la sobrevida y/o mitigación de secuelas. Con el propósito de aumentar la población capacitada en soporte vital básico, favorecer el aprendizaje y dedicar más tiempo al desarrollo de habilidades prácticas, se construyó un recurso educativo digital. Objetivo: Determinar el efecto de un recurso educativo digital en el proceso de aprendizaje de soporte vital básico en integrantes de la comunidad de una institución de educación superior. Métodos: Estudio cuantitativo, pre-experimental tipo pre-prueba/pos-prueba en un solo grupo. Resultados: El recurso educativo digital para el aprendizaje de soporte vital básico en 110 estudiantes incrementó el conocimiento, mostró una diferencia estadísticamente significativa en los resultados del post-test en comparación con el pre-test: p<0.01 para grupos ajustados al modelo gaussiano y p<0.05 para el grupo no ajustado. Discusión: Los resultados de implementar un recurso educativo digital para la enseñanza de soporte vital básico es consecuente con los beneficios hallados en otros estudios similares. Los Objetos Virtuales de Aprendizaje favorecen en los estudiantes la motivación, el aprendizaje autorregulado y la apropiación de conocimientos, por lo que los proponen como estrategia de aprendizaje. Conclusión: El recurso educativo digital favoreció el aprendizaje e incrementó el conocimiento, requisito necesario en la formación como primer respondiente en los tres grupos de estudiantes de pregrado que participaron en el presente estudio.
Analysing the Impact of Religiousity towards Human Welfare among Employee of University of Muhammadiyah Malang
Authors: Suliswanto Muhammad Sri Wahyudi , Muhajirin Muhajirin , Yuli Sri Budi Cantika , Abdullah M. Faisyal
Published: March 2020

This study intended to determine the relationship between religiosity towards human welfare among employee of University of Muhammadiyah Malang. The method of this study is quantitatif using questionnaire as method of collecting data. The method of analysis data using Partial Least Square (PLS) with several valid variables. The result indicate that religiosity of employee is able to play a role to improve welfare among employee of University of Muhammadiyah Malang. This result of this study indicate that religiousity have significance role in the welfare of employee of University of Muhammadiyah Malang.
Two-Qubit Circuit Depth and the Monodromy Polytope
Authors: Peterson Eric C. , Crooks Gavin E. , Smith Robert S.
Published: March 2020

For a native gate set which includes all single-qubit gates, we apply results from symplectic geometry to analyze the spaces of two-qubit programs accessible within a fixed number of gates. These techniques yield an explicit description of this subspace as a convex polytope, presented by a family of linear inequalities themselves accessible via a finite calculation. We completely describe this family of inequalities in a variety of familiar example cases, and as a consequence we highlight a certain member of the ``XY--family'' for which this subspace is particularly large, i.e., for which many two-qubit programs admit expression as low-depth circuits.
Variational Quantum Fidelity Estimation
Authors: Cerezo Marco , Poremba Alexander , Cincio Lukasz , Coles Patrick J.
Published: March 2020

Computing quantum state fidelity will be important to verify and characterize states prepared on a quantum computer. In this work, we propose novel lower and upper bounds for the fidelityF(ρ,σ)based on the ``truncated fidelity''F(ρm,σ), which is evaluated for a stateρmobtained by projectingρonto itsm-largest eigenvalues. Our bounds can be refined, i.e., they tighten monotonically withm. To compute our bounds, we introduce a hybrid quantum-classical algorithm, called Variational Quantum Fidelity Estimation, that involves three steps: (1) variationally diagonalizeρ, (2) compute matrix elements ofσin the eigenbasis ofρ, and (3) combine these matrix elements to compute our bounds. Our algorithm is aimed at the case whereσis arbitrary andρis low rank, which we call low-rank fidelity estimation, and we prove that no classical algorithm can efficiently solve this problem under reasonable assumptions. Finally, we demonstrate that our bounds can detect quantum phase transitions and are often tighter than previously known computable bounds for realistic situations.
The efficacy and tolerability of Avaricon® hemor medical preparation in the treatment of hemorrhoids compared to placebo – a prospective double blind randomized clinical study
Authors: Zdravkovic Natasa , Bradic Jovana , Zivic Jelena , Vekic Berislav , Bolevich Sergey , Jakovljevic Vladimir
Published: March 2020

Introduction. Despite the high incidence of hemorrhoidal disease and the widespread use of numerous topical preparations, there is still a lack of information regarding their efficacy. Therefore, the aim of this study was to assess the efficacy and tolerability of a new topical medical preparation containing sodium hyaluronate, calendula extract, hamamelis extract and mentha piperita essential oil as major components. Material and Methods. This prospective double-blind randomized clinical study included 49 patients with a diagnosis of hemorrhoidal disease. The patients were randomly assigned to two groups: Avaricon? group that included patients who applied 0.20% Avaricon? Hemor and a placebo group who applied placebo during 2 weeks. The effects of Avaricon? Hemor on the symptoms of hemorrhoidal disease, its safety, tolerability as well as compliance and adherence of study patients were analyzed. Results. Our results showed that Avaricon? Hemor was significantly superior to placebo in controlling most symptoms of hemorrhoidal disease. Conclusion. The tested medical agent showed to be effective with good tolerability and safety profile indicating its possible use in various therapeutic protocols in the management of hemorrhoidal disease.
Erratum: Proliferation of B-lymphocytes in inflammatory and hematological diseases
Authors: Editorial E
Published: March 2020

Hereby we offer our apologies for an unintentional error published in the paper entitled PROLIFERATION OF B-LYMPHOCYTES IN INFLAMMATORY AND HEMATOLOGICAL DISEASES published in the journal Medical Review: 11 - 12/ 2018, on pages 377 - 381 in the section Original Scientific Papers, by: Tamara Tesic, Dajana Lendak, Ivana Urosevic, Igor Mitic and Vanja Andric, where incorrect affiliations were attributed to Ivana Urosevic and Igor Mitic.

 Link to the corrected article 10.2298/MPNS1812377T
The association between psychoactive substance use and violence
Authors: Knezevic Vladimir , Ratkovic Dragana , Vejnovic Ana , Ivanovic-Kovacevic Svetlana , Milatovic Jovan , Knezevic Jelena
Published: March 2020

Introduction. The association between substance use and aggression derives from the fact that among violent crime offenders there is a large number of people with alcohol and drug abuse. The objective of the study was to determine the incidence of psychoactive substance addicts in the population of violent crime offenders, as well as to consider possible measures to reduce the crime rates in this population. Material and Methods. Forensic psychiatric reports were used to assess 94 violent offenders from 2001 to 2018. The expert reports were obtained from the Psychiatry Clinic in Novi Sad, Serbia, including court case files, medical records, and psychiatric and psychological records of all offenders. Results. We have found that of the total of 94 violent crime offenders, as many as 25% suffered from some form of mental disorder. More than half of those with mental disorders from this group suffered from disorders induced by psychoactive substances, which means that as many as 15% of all offenders had some form of addiction. On the other hand, as much as 50% of all the offenders were under the influence of psychoactive substances at the time of the offense, predominantly by alcohol. Conclusion. Further research is needed in order to develop specific programs for the prevention of violence in the population using psychoactive substances.
Post-dural puncture headache: Epidemiology, onset mechanisms, clinical symptoms, diagnosis and therapy
Authors: Simic Svetlana , Kopitovic Aleksandar , Rabi-Zikic Tamara , Knezevic Jelena , Radmilo Ljiljana , Simic Dragan
Published: March 2020

Introduction. Post-dural puncture headache is classified as a secondary headache attributable to non-vascular intracranial disorders and belongs to the group of headaches caused by low cerebrospinal fluid pressure. Etiopathogenesis. The pathogenesis is not completely clear, but it is thought to be caused by the cerebrospinal fluid leak through the duct opening. Cerebrospinal fluid efflux leads to a decrease in intracranial pressure and stretching of the pain sensitive intracranial structures. A drop in intracranial pressure can cause compensatory cerebrovascular vasodilation, contributing to the onset of a headache. Diagnosis and Therapy. Post-dural puncture headache clinically presents as an orthostatic headache. In most cases, the diagnosis is made based on a typical clinical picture and it can be confirmed by magnetic resonance imaging and measurement of cerebrospinal fluid pressure. The condition is usually benign, most often with spontaneous recovery. The therapy involves conservative treatment, medications, as well as some invasive methods: epidural blood patches, blockage of the greater occipital nerve, and in most severe cases, epidural injection of fibrin sealant or surgical dural repair. Conclusion. Post-dural puncture headache is a common complaint in the clinical practice of neurologists and anesthesiologists. The prognosis is usually favourable, while the therapy may include conservative or invasive treatment procedures.
Corporate Governance and Leverage on Tax Aggressiveness: Empirical Study on Mining Companies in Indonesia
Authors: Vanesali Laurensia , Kristanto Ari Budi
Published: March 2020

This study aims to investigate the effect of corporate governance and leverage towards tax aggressiveness. The research data comprises 66 firm-year obtained from 11 mining companies during 2013-2018. They were sorted using a purposive sampling method. The hypotheses were tested using multiple regression analysis. The results indicate that institutional ownership and audit committee had a positive and significant effect on tax aggressiveness, the proportion of independent commissioners and audit quality had a negative and significant effect on tax avoidance, while leverage was not considered as a determinant of tax avoidance in Indonesian manufacturing firms.
Dificultades y motivaciones para la actividad física en pacientes con Diabetes mellitus tipo 2. Hospital Pablo Arturo Suárez. Febrero – abril 2019
Authors: Rodríguez-Rocha Byron
Published: March 2020

Introducción: Los beneficios del ejercicio físico son múltiples como tratamiento de la diabetes y a pesar que la actividad física retrasa la diabetes y sus complicaciones, la mayoría de diabéticos no son activos. Objetivo: Identificar las dificultades y motivaciones para realizar la actividad física en los pacientes con diabetes mellitus tipo 2. Materiales y Métodos: Estudio descriptivo de corte transversal, se usó una encuesta como herramienta, previamente validada con un Alfa de Cronbach 0,76; muestra fue de 179 individuos que acuden al Hospital Pablo Arturo en febrero – abril 2019, incluyeron personas de entre 18 y 90 años, que presenten diabetes mellitus tipo 2, tengan o no comorbilidades y que firmaron el consentimiento informado; se excluyeron a menores de 18 y mayores de 90, diagnostico por confirmar, diabetes diferente a la tipo 2, inasistencia al hospital y no haya firmado el consentimiento informado; se analizó dos variables categóricas y dependiendo de las observaciones se usó el Test de X2 de Pearson o el Test de Fisher respectivamente (SPSS), usamos consentimiento informado elaborado bajo normas de la OMS; fue sometido a revisión por el comité de bioética de la Pontificia Universidad Católica del Ecuador aprobándolo. Resultados: Un total de 11 barreras reportadas como estadísticamente significativas (p <0,05) de estas son 8 barreras externas y 3 barreras internas; además de 3 motivaciones. Conclusiones: Del entendimiento de estos factores podrían realizarse intervenciones con el fin de que exista una adherencia a los cambios de estilo de vida en especial a la realización de actividad física.
PREDIKSI PERMEABILITAS MENGGUNAKAN METODE LOG DAN PORE GEOMETRY STRUCTURE (PGS) PADA DAERAH CEKUNGAN JAWA BARAT UTARA
Authors: Yuliani Ayu , Dewanto Ordas , Karyanto Karyanto , Yogi Ade
Published: March 2020

Determination of reservoir rock properties is very important to be able to understand the reservoir better. One of these rock properties is permeability. Permeability is the ability of a rock to pass fluid. In this study, the calculation of permeability was carried out using log and PGS (Pore Geometry Structure) methods based on core data, logs, and CT scans. In the log method, the calculation of permeability is done by petrophysical analysis which aims to evaluate the target zone formation in the form of calculation of the distribution of shale content (effective volume), effective porosity, water saturation, and permeability. Next, the determination of porosity values from CT Scan. Performed on 2 data cores of 20 tubes, each tube was plotted as many as 15 points. The output of this stage is the CT Porosity value that will be used for the distribution of predictions of PGS permeability values. In the PGS method, rock typing is based on geological descriptions, then calculation of permeability predictions. Using these two methods, permeability can be calculated in the study area. The results of log and PGS permeability calculations that show good correlation are the results of calculation of PGS permeability. It can be seen from the data from the calculation of PGS permeability approaching a gradient of one value with R2 of 0.906, it will increasingly approach the core rock permeability value. Whereas the log permeability calculation for core rock permeability is 0.845.
ANALISIS KETEBALAN LAPISAN SEDIMEN DAN INDEKS KERENTANAN SEISMIK KOTA JAMBI BAGIAN TIMUR
Authors: Satria Arie , Resta Ichy Lucya , MZ Nasri
Published: March 2020

A Research was carried about analysis of sediment layer thickness and seismic vulnerability index in eastern Jambi City. The purpose of this research was to  determine the effect of sediment layer thickness on seismic vulnerability index in eastern Jambi City based on microtremor data. The Acquisition data of microtremor is 25 points spread in research area. Processing data was carried out using the HVSR (Horizontal to Vertical Spectra Ratio) method to obtain the H/V curve. This curve represents the value of the natural frequency (f0) and amplification factor (A0). Based on the results of data processing obtained, the range of natural frequency (f0) value is 1.04 – 3.78 Hz, the range of amplification factor (A0) value is 1.13 - 4.88 times, the range of sediment layer thickness (h) value is 16.46 – 61.45 meters, and the range of seismic vulnerability index (Kg) value is 0.70 - 20.18×10-6 cm2/s. The results showed that the distribution of seismic vulnerability index (Kg) correlated relatively well with sediment layer thickness of the research area. The high zone of seismic vulnerability index (Kg) is relatively associated with alluvial deposits and also the sediment layer thickness of more than 30 meters. The high zone of seismic vulnerability index (Kg) is concentrated in Pasir Panjang, Tanjung Raden to Olak Kemang in Danau Teluk sub-district and Tanjung Sari in Jambi Timur sub-district.
KAJIAN DAERAH RENDAMAN TSUNAMI DI PESISIR TELUK LAMPUNG AKIBAT PERUBAHAN TOPOGRAFI GUNUNG ANAK KRAKATAU DI TAHUN 2018
Authors: Siregar Resti Elida Nurhawati , Zakaria Ahmad , Armijon Armijon
Published: March 2020

The eruption of the Anak Krakatoa volcano (GAK) in December 2018 caused part of the body of GAK to collapse into the sea and caused a tsunami. This avalanche also caused changes in the topography of GAK. If there is a repeat of the disaster with the current GAK topography, it will certainly cause changes in tsunami wave height at the shoreline which will affect changes in the tsunami inundation area. Because the location of the Lampung Bay coastal area which is quite close to GAK makes the Lampung Bay coastal area vulnerable to the tsunami disaster. So, it is necessary to study the tsunami inundation area due to changes in the current GAK topography in the coastal area of Lampung Bay. This study was conducted using non-numerical methods to obtain wave heights at the shoreline and the Berryman methods to obtain tsunami inundation areas in the coastal areas of Lampung bay by making three scenarios. Based on the results of the study, it is known that the height of tsunami waves, which are 13 meters, 26 meters, and 39 meters with an average time of arrival of tsunami waves on the shoreline is 57 minutes. Where there are seven sub-districts submerged by the tsunami with a distance of about 160 meters to 1.6 kilometers.
ALTERNATIF PEMODELAN NUMERIK KOPEL THERMO-HYDRO -MECHANIC INJEKSI CO2 PADA FORMASI GEOLOGI BAWAH PERMUKAAN
Authors: Suhendi Cahli , Sule Mohammad Rachmat
Published: March 2020

CO2 injection into subsurface formations is a potential method to reduce CO2 gas emissions in the atmosphere. Geological and geophysical studies are carried out as an effort to analyze the storage capacity and potential risks. The results are then used to analyze the response of reservoir rock to the injected CO2 fluid. The effect of fluid injection on reservoir rocks is complex and involves a coupled system of fluid flow-geomechanics. CO2 fluid injection can increase fluid pressure that affects the local stress conditions of reservoir and surrounding rock. Meanwhile, changes in temperature due to the presence of CO2 fluid also affect reservoir rock stress, although not significantly. The complexity of the subsurface reservoir system includes thermomechanical and hydromechanical analysis involving multi-phase and multi-component fluids. To study these complex interactions, a program which can simulate the coupling between multi-phase and multi-component fluid-flows-geomechanics is needed. To accommodate these needs, Rutqvist et al (2002) have proposed a numerical modeling approach by linking TOUGH2-ECO2N and FLAC3D. In this study we developed an external program that linking TOUGH2 with different fluid modul (ECO2M), and FLAC3D using these approaches to run the coupled THM simulation automatically and seamlessly until the end of simulation.
PREDIKSI POROSITAS MENGGUNAKAN METODE NEURAL NETWORK PADA LAPANGAN OZZA, CEKUNGAN SUMATRA TENGAH
Authors: Dinata Ozza , Mulyanto Bagus Sapto , Ramadian Resha , R Dhimas Arief
Published: March 2020

Information from geological structures that are considered to contain hydrocarbons may not necessarily contain economical hydrocarbons, so additional analysis is needed to determine the position of new wells. Seismic and log methods can be used to determine areas considered prospective for oil and gas exploration. Seismic analysis method developed to be able to integrate seismic data and log data is a neural network. Neural network is a data processing to get a non-linear approach of the statistical relationship of the input data to the output data, then distributed to all seismic volumes. The results of the study of sand reservoir characteristics in the Ozza Field have a porosity value of more than or equal to 20%, and for shale it has a porosity value of less than 20%. The correlation between the original porosity value and predictive porosity is that the higher the porosity value in the original log the higher the value of the neural network porosity, and vice versa. The porosity distribution map in the prospect area has a higher porosity value than the surrounding area. The prospect zone for new exploration is in the southwest area of the study area.
Foreword March 2020
Authors: Editor JGE
Published: March 2020

Foreword March 2020
Hollywood no era una fiesta: distopías narrativas sobre la meca del cine
Authors: Gutiérrez José Ismael
Published: March 2020

Este artículo explora en la identidad de un abundante corpus narrativo que, eligiendo a Hollywood como objeto de estudio y blanco de sus críticas, cuestiona los valores de la sociedad estadounidense moderna. Es obvio que muchas novelas publicadas a lo largo del siglo XX se han sentido más atraídas por los vicios y las deficiencias de la industria fílmica norteamericana en vez de por sus aspectos más deslumbrantes, aunque para mostrar esa otra cara de la realidad se hayan valido en ocasiones de la sátira y de una mirada cínica. Asimismo, pese a que la mayoría de los textos que se citan en este trabajo son novelas escritas por autores norteamericanos, dicha línea ficcional distópica prolifera en un mapa mayor que abarca a otros géneros y subgéneros representativos, así como a producciones literarias de diversas nacionalidades.
“Don Nadie”, autor de la obra de Eduardo Scala. Etapas y fuentes místicas de la poética de desaparición scaliana
Authors: Helgueta Manso Javier
Published: March 2020

Resumen
En este artículo se analiza un caso singular en la poesía española reciente: la poética de la desaparición de Eduardo Scala. En contra del encumbramiento del autor en el Campo Literario, Scala lleva a cabo un proceso de auto-borrado en dos fases. En primer lugar, quema toda su obra anterior y se renombra a sí mismo “Don Nadie” para lograr un proyecto místico de des-identificación. Mediante esta clausura, puede tener lugar la siguiente etapa: un “nuevo nacimiento” que propicia la apertura de la poesía.
La producción scaliana comienza en la posmodernidad literaria española, tiene en cuenta las propuestas artísticas negativas de Marcel Duchamp o John Cage y conoce la filosofía Roland Barthes y su texto La muerte del autor. Sin embargo, las principales fuentes de Scala se encuentran en la tradición mística; especialmente, son esenciales dos conceptos: la «renuncia» y la «nada». Para complementar la explicación de esta ascestética, se empleará un enfoque desde la Sociología de la Literatura.
Pengaruh kombinasi tepung kunyit (Curcuma domestica Val.) dan probiotik terhadap penampilan usus ayam pedaging
Authors: Adli Danung Nur , Sjofjan Osfar , Natsir Muhammad Halim , Kusumaningtyaswati Arum
Published: March 2020

Tujuan dari penelitian ini adalah untuk mengetahui efek dari tepung kunyit dan probiotik terhadap karakteristik usus halus yang terdiri dari total vili, tinggi vili dan viskositas digesta. Materinya adalah 100 DOC (Day Old Chick) dan ukuran per plot 70 × 80 × 70 cm dibagi menjadi 20 plot. Data dianalisis secara statistik dengan menggunakan Analisis Variasi (anova). Jika data hasil yang berbeda signifikan antara perlakuan maka dilanjutkan dengan Uji Jarak Berganda Duncan. Dalam desain acak lengkap dengan empat perlakuan dan lima ulangan masing-masing dan 5 DOC per ulangan. Hasil dari penelitian ini adalah bahwa 0,1% penambahan tepung kunyit bubuk pada pakan secara signifikan meningkatkan jumlah vili usus halus. Penambahan tepung kunyit dan probiotik tidak memberikan perbedaan yang signifikan (P> 0,05) terhadap tinggi viskositas vili dan vili usus halus. Disimpulkan bahwa serbuk kunyit dan probiotik dalam pakan ayam pedaging dapat meningkatkan jumlah vili. 0,1% tingkat perlakuan penambahan serbuk kunyit pada pakan broiler memberikan hasil terbaik menghasilkan jumlah total vili.
Trayectorias de movilidad residencial y cuidado en casa de ancianos pobres urbanos
Authors: Robles-Silva Leticia
Published: March 2020

El objetivo es identificar los tipos de movilidad residencial entre los ancianos pobres urbanos con base en los espacios de cuidado en la casa donde residen. Los datos provienen de dos estudios etnográficos en Guadalajara, México, con 40 ancianos pobres urbanos. Se analiza la casa como un espacio de cuidado a partir de las características físicas y el uso del espacio doméstico, y las relaciones familiares en su interior para identificar los tipos de movilidad residencial. Cuatro trayectorias de movilidad residencial muestran las circunstancias para la inclusión o exclusión del cuidado en casa y la movilidad residencial entre la casa y el asilo.
Limnological Survey of three Tropical Water Reservoirs in Eastern India.
Authors: Das Sanjib Kumar , Chakrabarty Debajyoti
Published: March 2020

ABSTRACT. Limnological Survey of three Tropical Water Reservoirs in Eastern India. Plankton communities of three water reservoirs of India reflect direct relationship with organic pollution. The assessment of water quality as high or low organically polluted for three water bodies have been achieved with help of algal community, which can be used as indicator of organic pollution. Algal pollution indices according to Palmer (1969) and Watanabe’s (1962) based on genus and species were used in rating water samples for high or low organic pollution. Among 26 genera found in India 20 most frequent and common genera of algae were taken into account for indexing pollution status. Water Quality Index (WQI) on the basis of weighting and rating of the chemical parameter was also used to correlate the Palmer index with Physical-chemical parameters of water reservoirs.Key Words. Palmer Index, organic pollution, water reservoir, algae, plankton, water quality index.RESUMEN. Estudio limnológico de tres embalses de la India Oriental. Las comunidades planctónicas de tres embalses de la India reflejan relaciones directas con la polución orgánica. Se ha evaluado la calidad del agua de estos embalses atendiendo a la comunidad algal que alojan, lo que puede usarse como indicador de polución orgánica. Se ordenaron las muestras de agua, desde alta hasta baja polución orgánica, de acuerdo con los índices de Palmer (1969) y Watanabe (1962) basados en géneros y especies. Entre los 26 géneros encontrados en la India, se seleccionaron los 20 más comunes y frecuentes para los cálculos de los índices citados. También se calculó el índice de la calidad del agua (Water Quality Index, WQI), y se correlacionó con el índice algal de Palmer así como con los parámetros físico-químicos del agua de los embalses.Palabras clave. Índice de Palmer, polución orgánica, embalses, algas, plancton, índice de calidad del agua.