bluuebunny/crossref_metadata_2025 huggingface dataset:
Nilai Moral dalam Serat Panitibaya
Authors: Wijayanti Anis , N. Yusro Edy , . Hardyanto
Published: August 2020

ABSTRACT

 

Panitibaya fiber is one of the piwulang Javanese texts that needs to be preserved because the teachings contained in it are still very beneficial for the community. For that Panitibaya Fiber will be examined on (1) how the sound layer in Panitibaya Fiber, (2) how the meaning layer in  Panitibaya Fiber, (3) how the object layer in Panitbaya Fiber, (4) Moral Value in Panitibaya Fiber. This study uses a literary sociology approach according to Ian Watt. The research method used is descriptive qualitative. The data used in this study is the text of the Fiber Panitibaya written by Bathara Katong. Data collection techniques in this study were heuristic and hermeneutic reading methods. The analysis technique uses an analysis of the building blocks of poetry Roman Ingarden which includes sound layers, meaning layers, object layers. From the data, it was analyzed using Ian Watt's sociology theory of literature to find out the teachings contained in Panitibaya Fiber. The results of this study indicate that the existence of sound layers, layers of meaning and layers of objects, as well as moral values ​​contained in the Panitibaya Fiber for pursuing are summarized as eleven teachings as follows, (1) obligations to the Creator, (2) disgraceful qualities that must be shunned, (3) commendable traits, (4) actions that are not justified for men, (5) attitudes that must be considered in speech, (6) ancestral messages, (7) people who are not approachable, (8) actions related to children, (9) actions related to firearms, (10) there are visits and neighbors, and (11) attitude in handling a job. The teachings of the Panitibaya Fiber need to be disseminated in the Javanese community, either through print media or online media.

Keywords: Panitibaya Fiber, Prohibition of pursuing life, Sociology of literature.
Serat Petung dalam Kajian Filologis
Authors: Aji Dicky Qulyubi , N. Yusro Edy , . Widodo
Published: August 2020

Naskah Serat Petung merupakan salah satu naskah Jawa yang unik. Pada bagian awal dan akhir teks berisi tembang, serta bagian tengah teks berisi prosa. Naskah ini termasuk dalam jenis naskah nujum. Naskah Serat Petung merupakan kompilasi dari tiga teks, yaitu Serat Suluk Pei, Serat Petung dan Serat Candraning Wanita. Tujuan penelitian adalah menyajikan teks Serat Petung menggunakan kajian filologis. Data dalam penelitian ini adalah naskah Serat Petung dengan nomor 1466. Metode yang digunakan adalah metode edisi naskah tunggal. Terjemahan teks dalam naskah Serat Petung menggunakan teknik terjemahan bebas. Hasil penelitian adalah sajian isi teks Serat Petung mengenai penjelasan tentang hakikat hidup melalui perlambangan bangunan keraton Adiningrat Surakarta, serta memaparkan perihal petung hari dan pasaran yang digunakan dalam seluk-beluk pernikahan, membuat sumur, menanam padi, asal-muasal wuku,  membuat pagar, menerapkan pintu, sifat dan karakteristik wanita serta baik dan buruk hari kelahiran.

Kata kunci: Filologi, naskah Jawa, Serat Petung, suntingan teks.
Tradisi Nyadran di Desa Ngasem Kecamatan Batealit Kabupaten Jepara
Authors: Afriani Iin , K.A. Sri Prastiti
Published: August 2020

ABSTRAK

 

            Penelitian ini bertujuan untuk mendeskripsikan bentuk, fungsi dan makna tradisi nyadran yang berada di Desa Ngasem Kecamatan Batealit Kabupaten Jepara. Tradisi nyadran merupakan tradisi yang sudah ada sejak zaman dahulu dan rutin dilaksanakan setiap tahun sekali. Pendekatan yang digunakan dalam penelitian ini adalah pendekatan folklor. Teknik pengumpulan data yang digunakan adalah teknik observasi, wawancara dan dokumentasi. Analisis data menggunakan teknik analisis deskriptif kualitatif. Hasil penelitian ini adalah (1) bentuk tradisi nyadran yang terdiri dari bersih-bersih, pengajian,selamatan, nyadran, dan hiburan atau sebuah pertunjukan joged. (2) fungsi tradisi nyadran yaitu fungsi sosial, fungsi religi, fungsi pendidikan, melestarikan kebudayaan atau kearifan lokal dan sebagi hiburan. (3) simbol makna tradisi nyadran yaitu sebagai bentuk penghormatan mengenang kebiasaan leluhur Desa Ngasem dan juga sebagai wujud rasa syukur atas keberkahan yang telah diberikan oleh Allah SWT.

Kata Kunci: Tradisi Nyadran, Bentuk, Fungsi, Makna.

 

ABSTRACT

            The aim of this study is to describe the form, function and meaning of the nyadran tradition in the Ngasem Village, Batealit District, Jepara Regency. Nyadran tradition is a tradition that has exited since ancient times and routinely carried out once every year. The approach that used in this research was the folklore approach. Data collection techniques was used observation, interview and documentation techniques. Data analysis used descriptive qualitative analysis techniques. The results of this study were (1) the form nyadran tradition consisting of cleaning, recitation, salvation, nyadran, and entertainment or a joged performance. (2) the function nyadran tradition is as namely the social function, the religuis function, the educational function, preserving culture or local wisdom and as entertainment. (3) the symbolof the  meaning nyadran tradition is as a form of respect to remember the habits of the ancestors of the Ngasem Village and also as an expression of gratitude for the blessings given by Allah SWT.

Keyword: tradition Nyadran, form, function, meaning.
Kearifan Lokal Masyarakat Penambang Minyak Tradisional dalam Bahasa dan Budaya Jawa di Desa Wonocolo Kabupaten Bojonegoro
Authors: Sartika Anjar Dwi , Fateah Nur
Published: August 2020

This study aims to identify and describe the cognition system (cognition system) and local wisdom (local wisdom) in oil mining which is traditionally managed by the people of Wonocolo Village, Bojonegoro Regency.

This study used a descriptive qualitative which is studied ethnolinguistically with ethnoscience model. The data in this study were oral data obtained when the researcher observed the participants by using interview and filled note techniques in order to obtain the data classified from predrilling process and drilling process to find out cognition system and local wisdom of it.

Key Wordsi: Traditional Oil Mining, Local Wisdom, Ethnolinguistics
Análisis de la ejecución presupuestal en colombia durante el periodo 1954 – 2013
Authors: Torres Romero Alexandra , Cubillos Fonseca Juan Sebastián , Camelo Sanchez Fabián Eduardo , Lemus Polanía Diego Fernando
Published: August 2020

El presente documento se constituye en un ejercicio de investigación cuyo objetivo es reconocer el comportamiento de la inversión pública en Colombia entre 1954 y 2013, así como su relación con los lineamientos de política económica contenidos en los planes de desarrollo suscritos por los diferentes gobiernos. Para tal fin, se recurrió a la utilización de un método cuantitativo en particular: la metodología de identificación de modelos para series temporales de Box-Jenkins, la cual permite identificar los cambios suscitados en los gastos de inversión en los últimos 50 años y posibilita además un pronóstico para el cuatrienio siguiente. Finalmente, se concluye que la inversión pública se encuentra altamente influenciada por los planes de desarrollo de cada gobierno. También se identifica una tendencia creciente con periodos de estancamiento o decrecimiento debido a coyunturas económicas.
Factores que incrementan el riesgo de que los jóvenes se vean involucrados en situaciones violentas o delictivas en dos alcaldías de la Ciudad de México
Authors: Pérez Pérez Alejandra
Published: August 2020

Se presentan dos modelos de regresión logística para explicar el involucramiento de jóvenes en situaciones de riesgo de iniciar una carrera delictiva o tener conductas violentas. Se incluyen habitantes de las ciudades más violentas de México y dos alcaldías de la Ciudad de México para identificar las desventajas que ayuden a explicar su involucramiento en situaciones como el consumo de alcohol y drogas, formar parte de pandillas o poseer armas. Se consideran características en el nivel individual (sexo, edad y ocupación); del hogar (estrato socioeconómico, tipo de hogar, índices de convivencia); y del entorno (percepción de riesgo en la colonia). En general, a nivel nacional y local las desventajas tienen un impacto similar en los jóvenes, siendo el sexo y la edad las que tuvieron el mayor impacto; en la Ciudad de México, características como tipo de hogar, estrato socioeconómico y ocupación no tienen significancia estadística.
Caracterización del agente narrativo en las experiencias vividas
Authors: Freydell Montoya Guillermo Alberto
Published: August 2020

La dimensión hermenéutica de las experiencias vividas se ha abordado desde una reducción analítica que suspende temporal y espacialmente la caracterización de agente narrativo. La racionalidad narrativa podría ofrecer una estructura dinámica en la configuración de la identidad del agente narrativo, además de posibilidades formativas que amplían sus dominios de significación y acción. El artículo de reflexión presenta elementos estructurales de la narrativa para caracterizar el agente narrativo. Esquematismo, tradición y triple mímesis, como base para la configuración de historias que revelan la identidad característica del agente narrativo, estructuran el texto.
Hermenéutica existencial en Ser y tiempo de Martín Heidegger
Authors: Barragán D. Miguel Ángel , Cepeda H. Juan
Published: August 2020

El paradigma hermenéutico ha abierto un horizonte amplio a la hora de interpretar y comprender textos, pero ha cerrado las posibilidades existenciales que ya en Ser y tiempo abriera Heidegger. Lo que se intenta aquí es señalar esos presupuestos ontológico-existenciales que indicara acertadamente el filósofo alemán en su momento. El avance que se presenta hace parte del proyecto de investigación “Ontología en América Latina” que lidera el Grupo de Investigación Tlamatinime. La primera parte tiene como objetivo fijar cuatro lineamientos que estructuran la propuesta de una hermenéutica existencial: 1. La disposición afectiva como afectación y responsabilidad. 2. El comprender afectivo. 3. El comprender como interpretación. 4. El sentido. La segunda parte, consiste en presentar lo que se vislumbra por hermenéutica existencial y cuál sería su propósito.
Guide de pratique clinique fondé sur des données probantes pour l’examen périodique de la vue chez les enfants de 0 à 5 ans au Canada
Authors: Delpero Walter , Robinson Barbara , Lahey Rhona
Published: August 2020

Le dépistage de la vue effectué chez les bébés et les enfants par les fournisseurs de soins de première ligne au cours des consultations de routine et des vaccinations périodiques est un élément essentiel de la détection des maladies oculaires. Toutefois, le potentiel de détection précoce est limité et un examen oculovisuel complet est également recommandé avant que l’enfant n’entre à l’école. Si l’amblyopie, le strabisme ou une autre pathologie oculaire est détecté ou soupçonné, et que le problème dépasse le champ de compétences du professionnel qui examine le patient, celui-ci peut être dirigé vers le spécialiste approprié, ce qui permet d’amorcer le traitement en temps opportun.
SEO for your optometry practice: The secret sauce that still tastes great in 2020
Authors: Martel Cameron , Lahey Rhona
Published: August 2020

Use of SEO in practice
Why Optometrists Need to be Blogging
Authors: Lahey Rhona , Martel Cameron
Published: August 2020

We are huge proponents of blogging for Optometry practices. It has proven to be one of the most effective ways to generate new traffic, increase brand awareness, and attract new patients. That’s why we have made it one of the pillars of our SEO (search engine optimization) strategy.
Conjunctival chemosis: A case series of systemic causes
Authors: Roncone David P , Anthony Scott A
Published: August 2020

Conjunctival chemosis is a common ophthalmic finding that presents with a wide range of severity, symptoms, signs, and underlying etiologies. Although most cases of conjunctival chemosis are ocular in nature (allergy, infection, irritation), atypical presentations such as dusky conjunctival hue, corkscrew conjunctival veins, and periorbital edema, should prompt further investigation for a systemic cause.  In atypical cases, reviewing the patient’s medical history and medications, physically examining and auscultating the patient’s heart and lungs, and obtaining vitals (i.e. blood pressure, pulse, weight), are crucial parts of the investigation for a potential systemic source. This article reviews systemic causes for conjunctival chemosis and provides case examples to demonstrate evaluative and management techniques for optometrists to make a distinction between ocular and systemic conjunctival chemosis.
Rapport de cas : Neuropathie optique ischémique postérieure
Authors: Kwon Hyukjin , MacIver Sarah
Published: August 2020

La neuropathie optique ischémique postérieure (NOIP) est un trouble vasculaire qui survient dans la partie postérieure du nerf optique et qui, par conséquent, ne se présente habituellement pas avec un œdème du disque optique.

Rapport de cas : Nous rapportons ici un cas de NOIP avec une présentation non caractéristique. Ce rapport de cas souligne l’importance de comprendre les différentes physiopathologies de la NOIP et de la neuropathie optique ischémique antérieure (NOIA) pour aider à différencier les deux sur le plan clinique, et comprend une recension des écrits sur la NOIP.
Cambrure cornéenne mi-périphérique après Orthokératologie
Authors: Ouzzani Mhamed , Wright Catherine Johanna , Sorbara Luigina
Published: August 2020

Objectif

Cette étude avait pour but d’examiner rétrospectivement les données de patients qui avaient suivi un traitement d’orthokératologie afin de quantifier l’accentuation de la courbure de la couronne périphérique de la cornée par topographie en mode tangentiel (CT-CP) et la modification de la puissance de réfraction totale (PRT).

Méthodes

Les cartes ont été examinées et les données de Pentacam ont été recueillies avant le traitement d’orthokératologie et après la dernière visite. Les variables enregistrées comprenaient l’aplatissement central (TC-C), l’eccentricité cornéenne, les courbures de la couronne périphérique en mode tangentiel (CT-CP), la puissance de réfraction totale (PRT) de la cornée, la Rx initiale (sphère) et la courbure cornéenne initiale (kératométrie plate). Les patients ont ensuite été subdivisés en groupes de myopie forte et faible à des fins de comparaison. Tous les participants avaient reçu des lentilles Paragon CRT bien ajustées. Les données ont été analysées pour déterminer les effets des lentilles sur les courbes tangentielles (CT) et la PRT.

Résultats

Au total, 40 patients (80 yeux), âgés de 13,95 ± 6,80 ans, 34 sujets de sexe masculin et 46 sujets de sexe féminin, ont reçu des lentilles Paragon CRT ajustées à leurs yeux. La sphère moyenne était de -4,23 ± 0,90 D pour le groupe à forte myopie et de -1,89 ± 0,62 D pour le groupe à faible myopie. Les changements de CT et de PRT par rapport au niveau de référence étaient significatifs (p < 0,0001 pour les deux). La différence entre la superficie de CT-C et la superficie maximale de CT-CP était d’environ +/- 4,00 D au méridien horizontal et d’environ +/- 3,00 D au méridien vertical. Le changement de CT-CP par rapport au niveau de référence était d’environ +/- 2,00 D pour les deux méridiens. Il y a eu un changement semblable de la PRT : la distance entre le centre et la portion périphérique était d’environ +/- 2,50 D. Pour les valeurs CT-C, PRT-C, CT-CP et PRT-CP, il n’y avait pas de différence significative entre les deux groupes, dans l’ensemble (p = 0,541 [TC] et p = 0,321 [PRT]).

Conclusion

Ces résultats devraient fournir de précieux renseignements sur les changements topographiques et réfractaires qui surviennent chez les patients qui ont suivi un traitement d’orthokératologie.
Efecto de la terapia no quirúrgica sobre parámetros clínicos periodontales en pacientes consumidores de cannabis
Authors: Gómez-Osorio Natalia , González-Jiménez Paula A. , Moreno-Gutiérrez Adrián , Santana-Bedoya Danny , Alzate-Montoya Jhojan
Published: August 2020

El objetivo fue analizar los efectos de la terapia periodontal no quirúrgica sobre parámetros clínicos periodontales en pacientes consumidores de cannabis. Se realizó un estudio clínico no aleatorizado con voluntarios pertenecientes a la Universidad de Antioquia. Se revisaron 40 sujetos divididos en dos grupos: consumidores de cannabis (fumadores) y no consumidores de cannabis (control). Se registraron medidas de profundidad al sondaje (PD), nivel de inserción (CAL) y sangrado al sondaje (BOP) en el periodontograma al inicio y 3 meses después de la terapia periodontal no quirúrgica. Las diferencias entre grupos fueron analizadas con la prueba Mann Whitney. Todos los datos se analizaron en SPSS y se consideraron diferencias estadísticamente significativas cuando p≤0.05. La frecuencia del consumo de cannabis diario en pacientes fumadores evidencia que el 60 % consumen 3 veces/día, el 10 % 2 veces/día y el 30 % 1 vez/día. En general, los fumadores presentaron mayor porcentaje de BOP en las dos revisiones, en comparación con el grupo de no-fumadores y esta diferencia fue estadísticamente significativa (p<0.05). En profundidad al sondaje, no se observan diferencias entre los dos grupos. Los fumadores muestran un promedio de PD al inicio de 2.09 ± 0.73 mm y 2.15 ± 0.65 mm a los 3 meses; el aumento fue leve entre estas. También, se observa que el nivel de inserción fue ligeramente mayor en pacientes fumadores que en no fumadores. En la población estudiada no se evidencian datos significativos asociados con enfermedad periodontal y el consumo del cannabis. La respuesta de los tejidos periodontales a la terapia no quirúrgica fue similar entre pacientes consumidores y no consumidores de cannabis.
Fluorescencia, reflectancia y respuesta fisiológica al estrés hídrico en plántulas de Gmelina arborea Roxb
Authors: Valverde Juan Carlos , Arias-Aguilar Dagoberto , Montero-Zeledón Ernesto , Gutierrez-Fallas Dionisio
Published: August 2020

Se realizó una caracterización de la fluorescencia, reflectancia y respuesta fisiológica al estrés hídrico en plántulas de Gmelna arborea Roxb. Para lo cual, se desarrolló un experimento durante 31 días con dos tratamientos: plantas testigo (se aplicó un régimen hídrico normal) y plantas en condición de estrés hídrico (a las que se les limitó en su totalidad el agua por el periodo del experimento). Para ambos métodos se implementaron clones de G. arborea y se evaluaron cada siete días hasta el final del experimento, se analizó la fotosíntesis, conductancia estomática, turgencia foliar, contenido relativo de clorofila, fluorescencia y reflectancia. Los resultados mostraron que la biomasa en las plantas con estrés se redujo en un 26,9 % siendo la cobertura foliar la que mostró mayor afectación (disminución del 29,1 %), la reducción de la fotosíntesis fue del 60,1 % (5,8 µmol m-2 s-1) con respecto a la planta testigo (14,6 µmol m-2 s-1). Para las variables conductancia estomática, turgencia y contenido relativo de clorofila el comportamiento fue de disminuir sus valores de un 20 a 60 % conforme el periodo de estrés se incrementó. Con respecto a la fluorescencia se determinaron dos patrones: de los 400 a 550 nm la fluorescencia se incrementó en las plantas estresadas, mientras que a partir de los 600 a 725 nm fueron las plantas testigo las que presentaron mayor excitación, en ambos rangos se presentaron valores máximos en los puntos correspondientes a clorofila a y b. Finalmente, la reflectancia mostró diferenciación entre los 460 y 770 nm siendo las plantas en condiciones de estrés las que presentaron una reflectancia mayor. El patrón obtenido de degradación fisiológica de las plantas estresadas se debe a la pérdida de agua del organismo que incide en cierre de estomas, aumento de producción de ácido abscísico, disminución de la síntesis de pared celular y limitaciones en la síntesis de proteínas.
Fotorreducción de dióxido de carbono usando TiO2 sensibilizado con trímeros de Co y Cu en medio acuoso
Authors: Rojas-Sánchez Carlos E. , Incer-Valverde Jimena , Pineda Leslie W. , Durán-Herrera J. Esteban
Published: August 2020

En la presente investigación, se evaluó el desempeño de dos fotocatalizadores de dióxido de titanio, uno sensibilizado con un trímero de cobre (Cu3(dpa)4Cl2) (dpa = 2,2´-dipiridilamina) y el otro con un trímero de cobalto (Co3(dpa)4Cl2), específicamente, en la fotorreducción de dióxido de carbono en medio acuoso. En una primera etapa experimental, se estudió el proceso de sensibilización del TiO2, el cual ocurre en dos reacciones sucesivas, utilizando un reactor de microondas: en la primera, se funcionaliza la superficie del TiO2 con ácido p-aminobenzoico (PABA) que actúa como molécula de enlace entre el TiO2 y el trímero respectivo; luego, en la segunda reacción, se ancla el trímero del metal. Se analizaron tres niveles de temperatura, potencia y tiempo de reacción para cada una de las dos reacciones; sin embargo, un análisis estadístico robusto tipo Taguchi arrojó que no existe diferencia significativa entre los tratamientos para las condiciones seleccionadas. Como resultado de esto, se determinó que para el proceso de sensibilización de los fotocatalizadores se puede trabajar en las siguientes condiciones sin afectar la composición final de cada catalizador: 70 ºC, 100 W y 5 min en la etapa de funcionalización con el PABA y 80 ºC, 150 W y 5 min en el anclaje de ambos tintes. En la segunda etapa experimental se realizó la evaluación de los fotocatalizadores sintetizados para la fotorreducción de CO2 en medio acuoso, empleando una lámpara ultravioleta de mediana presión y un fotorreactor a presión atmosférica y 25 ºC. El catalizador que presentó mejor desempeño fue el sensibilizado con el trímero de cobalto, ya que evidenció mayor producción de metano (14,28\ \sfrac{\mu mol}{g_{cat}\ h}) y monóxido de carbono (32,84\sfrac{\mu mol}{g_{cat}\ h}); por su parte, el catalizador sensibilizado con cobre no presentó generación cuantificable de monóxido de carbono y la producción de metano fue considerablemente menor (6,23\ µmolgcat h). La producción de hidrógeno por ambos catalizadores fue importante, particularmente, la del catalizador sensibilizado con el trímero de cobre (420\ µmolgcat h). No se detectó presencia de otros productos de la reducción del CO2 en la fase líquida.
Participation of Children and Adolescents in Live Crisis Drills and Exercises
Authors: Schonfeld David J. , Melzer-Lange Marlene , Hashikawa Andrew N. , Gorski Peter A. ,   COUNCIL ON CHILDREN AND DISASTERS, COUNCIL ON INJURY, VIOLENCE, AND POISON PREVENTION, COUNCIL ON SCHOOL HEALTH, Krug Steven , Baum Carl , Chung Sarita , Dahl-Grove Deanna , Davies H. Dele , Dziuban Eric , Gardner Aaron , Griese Stephanie , Needle Scott , Simpson Joelle , Hoffman Benjamin D. , Agran Phyllis F. , Hirsh Michael Peter , Johnston Brian Duncan , Kendi Sadiqa , Lee Lois Kaye , Monroe Kathy Wingo , Schaechter Judy , Tenenbein Milton , Zonfrillo Mark R.
Published: August 2020

Children and adolescents should be included in exercises and drills to the extent that their involvement advances readiness to meet their unique needs in the event of a crisis and/or furthers their own preparedness or resiliency. However, there is also a need to be cautious about the potential psychological risks and other unintended consequences of directly involving children in live exercises and drills. These risks and consequences are especially a concern when children are deceived and led to believe there is an actual attack and not a drill and/or for high-intensity active shooter drills. High-intensity active shooter drills may involve the use of real weapons, gunfire or blanks, theatrical makeup to give a realistic image of blood or gunshot wounds, predatory and aggressive acting by the individual posing to be the shooter, or other means to simulate an actual attack, even when participants are aware that it is a drill. This policy statement outlines some of the considerations regarding the prevalent practice of live active shooter drills in schools, including the recommendations to eliminate children’s involvement in high-intensity drills and exercises (with the possible exception of adolescent volunteers), prohibit deception in drills and exercises, and ensure appropriate accommodations during drills and exercises based on children’s unique vulnerabilities.
Hybrid Catheter-Based and Surgical Techniques for Ablation of Ventricular Arrhythmias
Authors: Khalil Fouad ,   Department of Cardiovascular Medicine, Division of Heart Rhythm Services, Mayo Clinic, Rochester, MN, US, Siontis Konstantinos ,   Department of Cardiovascular Medicine, Division of Heart Rhythm Services, Mayo Clinic, Rochester, MN, US, Bagameri Gabor ,   Department of Cardiovascular Surgery, Mayo Clinic, Rochester, MN, US, Killu Ammar M ,   Department of Cardiovascular Medicine, Division of Heart Rhythm Services, Mayo Clinic, Rochester, MN, US
Published: August 2020

Catheter ablation is a rapidly expanding and evolving field. The advent of interventional techniques and advances in technology have allowed catheter ablation to supplant antiarrhythmic surgery for ventricular arrhythmia treatment. However, issues related to access and energy delivery limit the use of catheter ablation in some cases. Hybrid catheter-based and surgical techniques represent a novel approach to overcome these limitations. The hybrid technique combines the strengths and minimises the limitations of either catheter or surgical ablation alone. There is a growing body of evidence in the literature supporting the safety and efficacy of the hybrid surgical technique. This review aims to provide an overview of hybrid surgical-catheter ablation for ventricular arrhythmia.
Agronomic response of forage mixtures in a silvopastoral system of the Colombian dry tropic
Authors: Martínez Mamián Carlos Augusto , Vivas Quila Nelson Jose , Morales Velasco Sandra
Published: August 2020

Mixtures of forage grasses and legumes were established on 9.7 ha, using the following treatments: Brachiaria hybrida cv. Cayman,Brachiaria hybrida cv. Toledo, Panicum maximum cv. Mombaza, Brachiaria hybrida cv. Cayman + C. brasiliensis, Brachiaria hybridacv. Toledo + C. brasiliensis, Panicum maximum cv. Mombaza + C. brasiliensis. The following variables were evaluated: vigor, height ofthe plant, coverage, incidence of pests and diseases at the four-week mark and production of forage and dry matter were recorded at the six-week mark. Statistical differences were found for plant height, which evidenced which of the treatments behaved best in terms of growth. Non-combined treatments were found to perform best for the production of dry matter variable. C. brasiliensis contributes to the growth of the combined grasses during the first four weeks of establishment, but after this time the legume begins to compete for space and light, affecting the development of the other forage species.
Degradation kinetics during storage of vitamins and antioxidants in coconut powder
Authors: Lucas Aguirre Juan Carlos , Giraldo Giraldo German Antonio , Cortés Rodríguez Misael
Published: August 2020

Degradation kinetic parameters in vitamins and antioxidants in coconut powder fortified with functionally active compounds (CP+FAC) during storage represents a valuable tool to predict the product’s shelf life. The aim of this research was to evaluate the degradation kinetics during storage of vitamins (C, D3, and E), total phenols, and properties associated to antioxidant activity. Vitamins were quantified via high-resolution liquid chromatography and the antioxidant activity through DPPH and ABTS free radical scavenging activity. An experimental design was used with two-factor factorial design: 1) storage time (tS) and 2) treatment: temperature (TA) - type of packaging (N2 and atmospheric air), where the dependent variables were adjusted to zero-, first-, and second-order kinetic models. In general, losses of FAC were significant with respect to the factors evaluated and their interactions, with minor changes at lower TA and packaged with N2, indicating that the degradation kinetics of the FAC is slower under these storage conditions. Increased storage temperature reduced FACstability, where the Arrhenius equation was able to quantify the effect of temperature of the rate of deterioration reactions of the FAC.
Water footprint analysis as an indicator of sustainability in nonconventional drinking water treatment systems
Authors: Cerón Hernández Víctor Alfonso , Hurtado Isabel Cristina , Bolaños Isabel Cristina , Figueroa Casas Apolinar , Restrepo Tarquino Inés
Published: August 2020

The impact of multiple-stage filtration (MSF) was determined in two study systems. Water footprint (WF) was estimated with all its components and their results allowed the identification of those responsible for the environmental impact associated with drinking water production. Climatic conditions of high and low precipitation and socio-cultural context were considered. Results showed technicalshortcomings, such as the presence of fissures that generate losses and the contribution of polluting substances in the effluent from filter washing. Socio-economic limitations increase the WF. Water management can be improved by studying the WF components and their relationships with the socio-cultural component.
Structural Equation Model to predict the intention of stay to the local Business Group
Authors: Cruz González Eileen , Vilalta-Alonso José Alberto
Published: August 2020

With the objective of obtaining a predictive model of the intention of stay applicable to the companies subordinated to the the local Business Group in the province of Artemisa, Cuba, the investigation consisted of the application of a questionnaire to 353 workers of 8 companies that were derelict in their corporate purpose. The results obtained support the hypotheses proposed since both the affective organizational commitment, the normative organizational commitment and the organizational commitment of continuity are significantly and positively related to the intention of permanence (r = 0.68, r = 0.55, r = 0.44, with p < 0.01), R2 = 0.552. The AMOS software is used to obtain the measurement model and the structural model as well as for the equations (CMIN/DF = 1.978, CFI = 0.972, SRMR = 0.043, RMSEA = 0.062, PClose = 0.084).
Incidencia de la decisión de manejo de sedimentos en el valor de una central hidroeléctrica
Authors: Polanco Jorge Andrés , Ramírez Atehortúa Fabián Hernando , Montes Gómez Luis Fernando , Botero Hernández Blanca Adriana , Otálvaro Barco Manuela
Published: August 2020

La sedimentación reduce la vida útil de embalses y el valor de centrales hidroeléctricas. El objetivo es determinar el efecto de las decisiones sobre manejo de sedimentos en el valor de una central. Primero, se jerarquizan las alternativas de manejo con la técnica AHP según la opinión de seis expertos. Segundo, se valora la central por flujo de caja (FCL) y RESCON 2 BETA (RES). Los resultados ordenan tres alternativas: reforestación, prácticas agrícolas y construcción de presa. La vida útil del embalse aumenta en 84% (reforestación), 40% (prácticas agrícolas) y 76% (presa). El valor de la central crece en 21% (FCL) y 21.74% (RES) para reforestación, 11.59% (FCL) y 13.18% (RES) para prácticas agrícolas, y 20.07% (FCL) y 19.93% (RES) para la presa. Se concluye que el manejo de sedimentos incide en el valor de la central puesto que la vida útil del embalse afecta el valor de continuidad.
Composite cellular automata based encryption method applied to surveillance videos
Authors: Cortés Martinez Luis Miguel , Alvarado Nieto Luz Deicy , Amaya Barrera Edilma Isabel
Published: August 2020

This work is part of the research project “Encryption Models Based on Chaotic Attractors” institutionalized in the Research and Scientific Development Center of the Universidad Distrital Francisco José de Caldas. In this paper, a symmetric encryption method for surveillance videos is presented, based on reversible composite cellular automata developed for this purpose. This method takes advantage of reversible cellular automata and elementary rule 30 properties, for efficient regions of interest encryption in surveillance video frames, obtaining an algorithm which experimental results of security and performance are consistent with those reported in current literature. In addition, it allows decryption without loss of information through a fixed size key for each video frame.
Factorial design of reactive concrete powder containing electric arc slag furnace and recycled glass powder
Authors: Abellán García Joaquín , Núñez López Andrés Mauricio , Torres Castellanos Nancy , Fernández Gómez Jaime Antonio
Published: August 2020

El objetivo principal de esta investigación es desarrollar una mezcla optimizada de concreto de polvos reactivos (RPC) que contenga materiales cementícios suplementarios (SCM), como la escoria siderúrgica de arco eléctrico (EASF) y el polvo de vidrio reciclado (RGP) entre otros, utilizando el diseño factorial. Se calcularon diferentes regresiones polinómicas para predecir con precisión las variables respuesta (flujo estático y resistencia a compresión a distintas edades) en función de los factores considerados. A través de un algoritmo multiobjetivo, se determinó la mezcla que alcance la resistencia y flujo estático adecuados con un contenido mínimo de cemento. La verificación experimental de esta optimización matemática mostró que con 621 kg/m3 de cemento ASTM Tipo HE, y un contenido máximo de 100 kg/m3 de humo de sílice, se puede alcanzar una resistencia a compresión superior a los 150 MPa en un concreto, además, autocompactante.
Fed-batch production and characterization of polyhydroxybutyrate by Bacillus megaterium LVN01 from residual glycerol
Authors: Gómez  Cardozo Javier Ricardo , Velasco Bucheli Rodrigo , Marín Pareja Nathalia , Ruíz Villadiego Orlando Simón , Correa Londoño Guillermo Antonio , Mora Martínez Amanda Lucía
Published: August 2020

The operating conditions of polyhydroxybutyrate (PHB) production processes are among the factors that most influence yields. In this study, we evaluated PHB production synthesized by Bacillus megaterium LVN01. Batch and fed-batch cultures were used to produce PHB from residual glycerol. For this, dry cell weight (DCW) and PHB productivity were analyzed at a preliminary stage by central composite design using batch systems under different temperature, C/N ratio, and fermentation time conditions. The maximum PHB productivity occurred at 30.8 °C, 44.9 mol mol-1, and 39.9 h. The same conditions were tested for studies in fed-batch culture. Fed-batch experiments were comparable to each other, where the DCW was around 1.9 g L-1, with PHB productivities of 29.5 mg L-1 h-1 and 35.6 mg L-1 h-1 for bioreactors of 5 L and 14 L, respectively. The PHB was characterized by NMR, FTIR, DSC, TGA, and DTG analys
Methane emissions from coal open pits in Colombia
Authors: Mariño Martínez Jorge Eliecer , Chanci Bedoya Ruben Darío , Gonzalez Preciado Angélica Julieth
Published: August 2020

From the agreements on climate change Colombia is committed to measuring and reporting emissions of greenhouse gases (GHG), and among these, the coal mining fugitive emissions. The country has been reporting emissions from international tables-Level 1 of the IPCC, but this proposal is suggesting doing so from exploration of CBM-Level 2 using canisters desorption systems. For the Colombia open pit mining (provinces of Guajira and Cesar) the analyses from international tables and from CBM studies found that emissions from tables-Level 1 (106.02 Gg of methane) exceed the content found in direct measurements-Level 2 (75.92 Gg of methane) in 40%. The levels of emissions in tons of CO2 equivalent are 2.226.420 and 1.594.320 tons respectively. These results show that since the contents of methane of Colombian coal beds are lower compared with main coal-producing countries, the fugitive emissions from the extraction of coal in Colombia should be calculated from CBM studies.
Optimizing manufactured sand content in mortars and its influence on fresh and hardened state
Authors: Sosa Marìa Eva , Chirillano Andrés , Villagrán Zaccardi Yury Andrés , Zega Claudio Javier
Published: August 2020

The shape and roughness of aggregates play a predominant role in the properties of cement mixes. Due to that, some regulations limit the content of manufacture fine aggregate at 30% of the total of fine aggregate in concrete. However, few design methods consider the shape and roughness surface of aggregates in the mix proportioning. This study presents an optimization method to increase the percentage of manufactured fine aggregates to be used, based on the void volume of the aggregates and their correlation with the fresh properties of mortars. To achieve that, the characteristics of the fresh and hard state were evaluated in order to carry out a comprehensive analysis on the influence of the method on the performance of mortars. From the results emerges that it is possible to maximize the content of manufactured aggregates without detrimental effects on compressive strength.
Multivariate analysis to model yield variability for defined management zones in a banana agroecosystem
Authors: Villegas Santa Lucas , Castañeda Sánchez Dario Antonio
Published: August 2020

The delineation of management zones is based on the spatial behavior of a few soil variables selected and evaluated previously, and usually not correlated in situ with yield. Since the soil-plant system is multivariate, the analysis of its complexity requires statistical tools of equal size. These tools are convenient in providing an intuitive interpretation of the relationship between variables and the ordering of sampling sites. This study aims at the identification of management zones in a banana agroecosystem, starting from the overall analysis of soil variables with crop performance components, using multivariate statistical tools. Three clusters of sites were identified based on soil variables, dry mean weight diameter, pH, and (Ca+Mg)/K ratio, all correlated with crop yield. The groupings allowed to delineate management zones whose production has a uniform spatial behavior, significantly different between zones (P < 0.01)
Wear resistance and hardness of nanostructured hardfacing coatings
Authors: Paz-Triviño Franklin , Buitrago-Sierra Robison , Santa Marín Juan Felipe
Published: August 2020

Abrasive wear is an important problema in industrial applications. The wear of tools in the mining industry is a costly issue, and it reduces equipment uptime. This study examined welded coatings obtained using a manual metal arc process with improved wear resistance. Their microstructure was studied by optical and electron microscopy. ASTM G99 (pin-on-disc) and ASTM G65 (dry sand/rubber wheel) wear tests were performed, and the worn surfaces were inspected to understand the wear mechanisms. The results show that the coating has a hypereutectic microstructure composed of austenite, NbC, and M7C3 carbides. The size of the nanocarbides was 91 nm; and the volume content, 5.3%. Hardness values were found around 1029 HV200 g, 15 seg. Low values of mass losses were attributed to the hypereutectic nanostructured hardfacing coating with extremely high hardness. The main wear mechanisms were microfracture and detachment of carbides and microcutting on the matrix.
Comparación de modelación por Inteligencia Artificial y Regresión Multivariable del comportamiento a flexión del UHPFRC
Authors: Abellán García Joaquín
Published: August 2020

El estudio presentado tiene como objetivo modelar el comportamiento a flexión de los concretos de ultra alto desempeño reforzados con fibras (UHPFRC), incluyendo límite de proporcionalidad (LOP), módulo de rotura (MOR) y sus deflexiones asociadas δLOP y δMOR, utilizando análisis de regresión multivariable y algoritmos de inteligencia artificial (AI). Se construyeron cuatro modelos redes neuronales artificiales (ANN), uno para cada respuesta, con una capa de entrada y una capa oculta, y cuatro modelos de regresión tipo LASSO (least absolute shrinkage and selection operator). Los resultados demostraron la eficiencia de los modelos, evaluados mediante los estadísticos error absoluto medio (MAE), raíz del error cuadrático medio (RMSE), error de sesgo medio normalizado (NMBE) y coeficiente de determinación (R2). Los modelos de redes neuronales mostraron mayor precisión, con valores de R2 de 0.982, 0.969, 0.978 y 0.978, en la predicción de los parámetros (δLOP, LOP, δMOR y MOR) del comportamiento a flexión de los UHPFRC.
Synthesis and Characterization of Melatonin-Loaded Chitosan Microparticles Promote Differentiation and Mineralization in Preosteoblastic Cells
Authors: Huang Ren-Yeong , Hsiao Po-Yan , Mau Lian-Ping , Tsai Yi-Wen Cathy , Cochran David L. , Weng Pei-Wei , Cheng Wan-Chien , Chung Chi-Hsiang , Huang Yi-Cheng
Published: August 2020

In terms of a novel scaffold with well good osteoinductive and osteoconductive capacity, melatonin (Mel) possesses positive effects on chemical linkage in scaffold structures, which may allow osteogenic differentiation. The aim of this study is to fabricate Mel-loaded chitosan (CS) microparticles (MPs) as a novel bone substitute through generating a Mel sustained release system from Mel-loaded CS MPs and evaluating its effect on the osteogenic capacity of MC3T3-E1 in vitro. The physical-chemical characteristics of the prepared CS MPs were examined by both Fourier transform infrared spectroscopy and scanning electron microscopy. The released profile and kinetics of Mel from MPs were quantified, and the bioactivity of the released Mel on preosteoblastic MC3T3-E1 cells was characterized in vitro. An in vitro drug release assay has shown high encapsulation efficiency and sustained release of Mel over the investigation period. In an osteogenesis assay, Mel-loaded CS MPs have significantly enhanced alkaline phosphatase (ALP) mRNA expression and ALP activity compared with the control group. Meanwhile, the osteoblast-specific differentiation genes, including runt related transcription factor 2 (Runx2), bone morphogentic protein-2 (Bmp2), collagen I (Col I), and osteocalcin (Ocn), were also significantly upregulated. Furthermore, quantificational alizarin red–based assay demonstrated that Mel-loaded CS MPs notably enhanced the calcium deposit of MC3T3-E1 compared with controls. In essence, Mel-loaded CS MPs can control the release of Mel for a period of time to accelerate osteogenic differentiation of preosteoblast cells in vitro.
On the Question of Whether Digital Rights Should Be Introduced into the Civil Code
Authors: Churilov Alexey
Published: August 2020

Introduction: on October 1, 2019, Article 141.1 “Digital rights” was introduced into the Civil Code by Federal law No. 34-FZ of 18.03.2019. Since January 1, 2020, the so-called utilitarian digital rights have been introduced into civil circulation. In connection with such significant changes in the objects of civil rights, there appears a need for a thorough analysis of innovations in terms of their feasibility and necessity. The tasks set by the author correspond to the goal of analyzing the legal regime of digital rights: to conduct a comparative analysis of securities, primarily non-documentary ones, and digital rights. Methods: the methodological framework for the research is a set of methods of scientific knowledge, among which the main ones are the methods of historicism, systematicity, analysis, and comparison. Results: the paper examines the category “digital rights” introduced in the Civil Code of the Russian Federation, as well as the special legislation regulating the utilitarian digital rights. The comparison of nondocumentary securities and utilitarian digital rights is made. The author studied the property rights that might be the content of digital rights, as well as the specifics of fixing digital rights in comparison with non-documentary securities, and the specifics of transferring digital rights from one person to another. A new non-documentary nonemissive security that mediates the circulation of digital rights – the digital certificate – is studied. Conclusions: the paper substantiates the inexpediency of introducing such an object of civil rights as digital rights into the Civil Code of the Russian Federation. The conclusion is made about the excessive complexity of the structure of digital rights and digital certificates, as well as the difficulties of using them for the investment purposes.
The Issues of Determining the Territorial Jurisdiction of Criminal Cases Regarding Extremist Crimes
Authors: Baranova Marina
Published: August 2020

Introduction: extremism in modern Russia is becoming more sophisticated and veiled, and is widely spread among young people, including through the Internet, and therefore it is of great importance to detect and stop it in a timely manner. The purpose of the work is to examine the existing theoretical structures on the issue of determining the scene of an extremist crime using the information and telecommunications networks and, accordingly, the territorial jurisdiction of criminal cases, as well as to study the practical side of the issue. Methods: the methodological framework for this research is a set of methods of scientific knowledge: dialectical, system, analysis, logical. Results: the author’s well-founded position is based on the current legislation, explanations of the Plenum of the Supreme Court of the Russian Federation, current judicial practice, the position of scientists – processualists on determining the time and place of the crime in the global information network and the dependence of the criminal investigation on these factors. Conclusions: the study determined that extremist crimes committed using the information and telecommunications networks, including the Internet, are characterized by extraterritoriality and may be subject to the jurisdiction of several states. To correctly determine the jurisdiction of such criminal cases, it is necessary not to wait for the development of a single international act, but to follow the current provisions of Parts 3, 4 and 4.1 of Article 152 of the Criminal Procedure Code of the Russian Federation.
O ensino de Matemática no pensamento de Comênius, Pestalozzi e Montessori
Authors: Medeiros Neta Olivia Morais , Gutierre Liliane dos Santos
Published: August 2020

RESUMO Neste artigo, discutimos os fundamentos para o ensino da Matemática na Pedagogia Tradicional e na Pedagogia Nova, marcadamente, a partir das teorias de fronteira de Comenius, Pestalozzi e Montessori. Esta pesquisa é de cunho documental e bibliográfico. Ao final da análise, concluímos que: há uma circulação de ideias entre o pensamento educacional de Comenius, Pestalozzi e Maria Montessori no que diz respeito ao uso de materiais didáticos e que nos métodos por estes pensadores a Matemática está associada às atividades práticas e gradativas.