bluuebunny/crossref_metadata_2025 huggingface dataset:
Benchmarking the efficiency of a metamodeling-enabled algorithm for the calibration of surface water quality models
Authors: Kandris K. , Romas E. , Tzimas A.
Published: October 2020

Computational efficiency is a major obstacle imposed in the automatic calibration of numerical, high-fidelity surface water quality models. To surpass this obstacle, the present work formulated a metamodeling-enabled algorithm for the calibration of surface water quality models and assessed the computational gains from this approach compared to a benchmark alternative (a derivative-free optimization algorithm). A radial basis function was trained over multiple snapshots of the original high-fidelity model to emulate the latter's behavior. This data-driven proxy of the original model was subsequently employed in the automatic calibration of the water quality models of two water reservoirs and, finally, the computational gains over the benchmark alternative were estimated. The benchmark analysis revealed that the metamodeling-enabled optimizer reached a solution with the same quality compared to its benchmark alternative in 20–38% lower process times. Thereby, this work manifests tangible evidence of the potential of metamodeling-enabled strategies and sets out a discussion on how to maximize computational gains deriving from such strategies in surface water quality modeling.
Using corncob-based biochar to intercept BTEX in stormwater filtration systems
Authors: Wang Huannan , Yan Dandan , Zeng Huan , He Jiajie
Published: October 2020

A biochar material made from corncobs was tested for its capability in BTEX adsorption/interception in stormwater filtration systems. Batch experiments were conducted to examine the adsorption kinetics, adsorption isotherms, and adsorption thermodynamics of BTEX onto this biochar. The feasibility of applying this biochar in stormwater filtration was studied by dynamic transport experiments and model simulations. The result showed that this biochar can adsorb BTEX and the adsorption is a thermodynamically spontaneous, and endothermic process. The BTEX adsorption kinetic experiment and adsorption retarded BTEX transport experiment indicated that the BTEX adsorption kinetics can be changed by the driving force between the BTEX concentrations and the active adsorption site as well as the contact time between BTEX and the biochar. In terms of applying this biochar in stormwater filtration, the Monte Carlo uncertainty analysis indicated that the BTEX interception is sensitive to the hydraulic conductivity of the biochar filter and the adsorption kinetics of the biochar material. Although this corncob-made biochar demonstrated effective pollutant adsorption capability, the biochar adsorption capability should be utilized to retain the pollutant long enough for biodegradation to take effect for ultimate pollutant attenuation.
Nitrate removal from aqueous solutions by cobalt ferrite nanoparticles synthesized by co-precipitation method: isotherm, kinetic and thermodynamic studies
Authors: Kamranifar Mohammad , Naghizadeh Ali , Masoudi Fatemehsadat , Osmani Farahnaz , Davoodi Maryam , Nabavian Mohammad Reza
Published: October 2020

The purpose of this study was to examine the nitrate adsorption by cobalt ferrite (CFO) nanoparticles. The adsorbent was synthesized by co-precipitation method and its structure was characterized using scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction and vibrating-sample magnetometry. In batch adsorption studies, the effects of various parameters like pH (3–11), adsorbent dose (0.2–0.8 g/L), contact time (5–120 min), initial nitrate concentration (50–200 mg/L), and temperature (283–313 K) on the adsorption process were examined. The results of this study indicated that the maximum adsorption capacity was 107.8 mg/g (optimum condition pH = 3, adsorbent dosage: 0.2 g/L, nitrate concentration: 200 mg/L, contact time: 20 min and temperature: 313 K). The adsorption isotherm had a proper match with Langmuir (R2 = 0.99) and Freundlich (R2 = 0.99) models. The adsorption of nitrate by CFO followed pseudo-second-order kinetics. The results of the thermodynamics of the nitrate adsorption process by CFO showed that all the values of Gibbs free energy change, enthalpy change and entropy change were positive. Therefore, this process was endothermic and non-spontaneous.
Syntheses, Biological and Material Significance of Dihydro[1,3]oxazine Derivatives: An Overview
Authors: Lathwal Ankit , Mathew Bijoy P. , Nath Mahendra
Published: October 2020

Dihydro[1,3]oxazines are an important class of heterocyclic compounds having a wide range of biological and material properties. Medicinally, they possess diverse pharmacological activities, such as bactericidal, fungicidal, microbiocidal, antitumor, anti-HIV, and anti-inflammatory agents. Apart from being biologically active, they are materially useful for making polybenzoxazines. Polybenzoxazines are a novel class of non-conjugated thermosetting materials that belong to the family of addition-curable phenolic resins. They have lucrative properties such as small shrinkage in curing, low water absorption, good thermal stability, and there is no release of volatile materials during cure, and no need for catalyst and inexpensive raw materials. Further, the flexibility in designing a monomer gives polybenzoxazines an additional edge over ordinary phenolic resins. This review briefly describes the syntheses, including eco-friendly strategies, and biological and material significance of various dihydro[1,3]oxazine derivatives.
A Cationic Gallium Phthalocyanine Inhibits Amyloid β Peptide Fibril Formation
Authors: Tabassum Shatera , Sheikh Abdullah Md. , Yano Shozo , Ikeue Takahisa , Mitaki Shingo , Michikawa Makoto , Nagai Atsushi
Published: October 2020

Background:

Amyloid β (Aβ) peptide deposition is considered as the main cause of Alzheimer’s
disease (AD). Previously, we have shown that a Zn containing neutral phthalocyanine (Zn-Pc)
inhibits Aβ fibril formation.

Objective:

The objective of this study is to investigate the effects of a cationic gallium containing Pc
(GaCl-Pc) on Aβ fibril formation process.

Methods and Results:

Aβ fibril formation was induced by incubating synthetic Aβ peptides in a fibril
forming buffer, and the amount of fibril was evaluated by ThT fluorescence assay. GaCl-Pc dosedependently
inhibited both Aβ1-40 and Aβ1-42 fibril formation. It mainly inhibited the elongation phase of
Aβ1-42 fibril formation kinetics, but not the lag phase. Western blotting results showed that it did not inhibit
its oligomerization process, rather increased it. Additionally, GaCl-Pc destabilized preformed Aβ1-
42 fibrils dose-dependently in vitro condition, and decreased Aβ levels in the brain slice culture of APP
transgenic AD model mice (J20 strain). Near-infrared scanning results showed that GaCl-Pc had the
ability to bind to Aβ1-42. MTT assay demonstrated that GaCl-Pc did not have toxicity towards a neuronal
cell line (A1) in culture rather, showed protective effects on Aβ-induced toxicity. Moreover, it dosedependently
decreased Aβ-induced reactive oxygen species levels in A1 culture.

Conclusion:

Thus, our result demonstrated that GaCl-Pc decreased Aβ aggregation and destabilized the
preformed fibrils. Since cationic molecules show a better ability to cross the blood-brain barrier, cationic
GaCl-Pc could be important for the therapy of AD.
Can Stories Breed Commitment? The Influence of Mergers and Acquisitions Narratives on Employees Regulatory Focus
Authors: Roundy Philip T.
Published: October 2020

One determinant of merger and acquisition (M&A) success is the extent that an organization’s employees commit to the combination. However, employees often have low commitment to merger and acquisition activity. This paper examines the relationship between organizational commitment, regulatory focus, and M&A narratives. It is argued that employees with a promotion focus will have higher affective commitment during M&As than employees with a prevention focus. Further, it is hypothesized that organizations can use particular types of narratives to activate employees’ promotion focus, which will result in employees having higher affective commitment than employees in organizations using other narrative-types.
Addendum: The Effortless Assessment of Risk States (E.A.R.S.) Tool: An interpersonal approach to mobile sensing (Preprint)
Authors: Lind Monika N , Byrne Michelle L , Wicks Geordie , Smidt Alec M , Allen Nicholas B
Published: October 2020

UNSTRUCTURED

I selected the "No abstract/not applicable" option, and the submission form flagged it as an error, saying, "The abstract is required to proceed. Please provide either a structured abstract or unstructured abstract." If an abstract is, in fact, required for an addendum, please let us know and we will write one. Thank you!
Use and Evaluation of Computerized Clinical Decision Support Systems for Early Detection of Sepsis in Hospitals: Protocol for a Scoping Review (Preprint)
Authors: Li Ling , Ackermann Khalia , Baker Jannah , Westbrook Johanna
Published: October 2020

BACKGROUND

Sepsis is a leading cause of death in hospitals, with high associated costs for both patients and health care systems worldwide. Early detection followed by timely intervention is critical for successful sepsis management and, hence, can save lives. Health care institutions are increasingly leveraging clinical data captured in electronic health records for the development of computerized clinical decision support (CCDS) systems aimed at enhancing the early detection of sepsis. However, a comprehensive evidence base regarding sepsis CCDS systems to inform clinical practice, research, and policy is currently lacking.

OBJECTIVE

This scoping review aims to systematically describe studies reporting on the use and evaluation of CCDS systems for early detection of sepsis in hospitals.

METHODS

The methodology for conducting scoping reviews presented by the Joanna Briggs Institute Reviewer’s Manual and the PRISMA-ScR (Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews) will be used and adapted as guides. A comprehensive literature search of 10 electronic databases will be conducted to identify all empirical quantitative and qualitative studies that investigate the use of CCDS systems for early detection of sepsis in hospitals. Detailed inclusion and exclusion criteria have been developed. Two reviewers will independently screen all articles based on these criteria. Any discrepancies will be resolved through discussion and further review by a third researcher if required.

RESULTS

Electronic database searches have retrieved 12,139 references after removing 10,051 duplicates. As of the submission date of this protocol, we have completed the title and abstract screening. A total of 372 references will be included for full-text screening. Only 15.9% (59/372) of these studies were focused on children: 11.0% (41/372) for pediatric and 4.8% (18/372) for neonatal patients. The scoping review and the manuscript will be completed by December 2020.

CONCLUSIONS

Results of this review will guide researchers in determining gaps and shortcomings in the current evidence base for CCDS system use and evaluation in the early detection of sepsis. The findings will be shared with key stakeholders in clinical care, research, policy, and patient advocacy.

INTERNATIONAL REGISTERED REPORT

PRR1-10.2196/24899
Saving Indonesia's Golden Generation: Preventing Teenage Marriage in Rembang, Central Java (A Case Study)
Authors: Sadasri Lidwina Mutia
Published: October 2020

Indonesia is expected to reap the benefits of a golden generation, enjoying an advanced and independent modern society in the year of 2045. However, there are great challenges ahead including problems amongst younger Indonesians which may hinder the realization of this projection. This study brings to the fore the problem of teenage marriage, defined as the marriage of two individuals under the age of eighteen, be it through coercion or through their own volition. Data show that 14.18% of married Indonesian women are younger than 16 years old (SUSENAS, 2017); with 1.459,000 teenage girls marrying per annum so that the country ranks eighth globally in terms of teenage marriage (UNICEF, 2020). Using a cybernetics communication approach and qualitative method, this article assesses teenage marriage prevention programs in Rembang, a regency in middle Java, Indonesia. This study found that prevention of teenage marriage is not part of everyday discussion in the grassroots. Public discourse has stalled at the information stage, optimal understanding has yet to be realized. With this backdrop, Rembang regency utilize a top-down approach in organizing its teenage marriage prevention programs. However, synergy and cooperation remain necessary to minimize the practice by maximizing collaboration with families, schools, health officials, religious officials, and civil servants who turn to be the most influential actors in such programs.
Developing Value Innovation Strategy In The "Blue Ocean Shift" Framework At The Flat Glass Industry In Indonesia
Authors: Subagio Rudy
Published: October 2020

Competition in the flat glass market in Indonesia since 2015 has been increasingly severe because much imported glass has entered Indonesia. The rapid rate of imported glass is due to two factors:  the enactment of the free trade pact in Southeast Asia and the expansion of the Chinese glass factory that built new factories in the Southeast Asia region, especially in Malaysia. Most of the imported glass entering Indonesia is commodity glass at a lower than local products, so they have begun to take a portion of the market share of local products. This competition is getting more onerous because the local flat glass industry has difficulties in reducing the price to be equal or lower than competitors' price due to the production cost structure is already too high. This research explores the basic concepts of strategies carried out by local flat glass companies in the face of competition in the flat glass industry. This is based on the concept of value innovation in the framework of “blue ocean shift.”  The research method used is an exploratory case study draws on an in-depth field study conducted in a local flat glass company based in Indonesia.
Social Impact: Social Good, Social Neutrality, Social Bad, and Social Disaster: When Is Doing What You Have A “Right” To Do He “Right” Thing To Do?
Authors: Tropman John
Published: October 2020

Social good has been defined as “services or products that promote human well-being on a large scale.” While there seems to be agreement about the definitional “space” of social good, concepts of social action, social justice, and social impact require further attention.Producing social good does not require injustice: improvements can be made even when there is no injustice. Social good might be considered the first step in a triad containing social better (ment) and social best (good, better, best), with impactful results produced by social actors.There may be large cultural “umbrellas,” widely held value bundles, which define whole societies at points in time and over time. We discuss two: “the lonely crowd,” and “party ID.”We use a portfolio analysis to look at the elements of social good and social bad: social very good, social good, social neutrality, social bad, and social disaster, and then consider three examples of positive social impacts, and five examples of negative social impacts.We suggest a guide to social action to help us make better decisions aimed toward the A or B outcomes (Social Very Good and Social Good), using three steps: awareness of hidden bias, regular decision refurbishment, and using decision rules.The goal of this paper is to share ideas to help avoid social bad, and to help achieve social good. Ideally, social good considerations will become a regular part of the decision-making process.
Partidos subordinados en coaliciones frágiles ante la instancia de revalidación electoral. Estudio de la UCR argentina y la DC chilena en el proceso electoral 2017
Authors: Gallo Ariadna , Grinstein Candela , Pesquero Bordón Jimena , Díaz Esterio Rodrigo
Published: October 2020

En este trabajo se procura analizar el rol de un partido histórico (otrora estructurado) que forma parte de una alianza transitoria y electoralista en el poder, ocupando un lugar subordinado. Para ello, estudia el caso de dos partidos políticos latinoamericanos a través de un estudio de caso múltiple: Unión Cívica Radical argentina, integrante de la coalición gobernante Cambiemos; y Democracia Cristiana chilena, que rompió con la alianza por entonces oficialista Nueva Mayoría
La doma del carisma. Revisión histórica de las teorías psicosociales del carisma político
Authors: Laso Ortíz Esteban , Guerra Hernández Miriam Anahí
Published: October 2020

El presente texto pretende sentar las bases de una teoría del carisma a través de una revisión crítica de las teorías clásicas (Weber, Le Bon, Freud y Durkheim) y las contemporáneas, señalando sus aportes e insuficiencias. Esta revisión histórica da cuenta de los repetidos fracasos de la mayoría de los teóricos contemporáneos de “domar” la irracionalidad carismática expurgando su núcleo emocional y alineándola con un racionalismo estrecho y utilitarista; es decir, de reducir la autoridad carismática a una variante de la autoridad racional weberiana
John Saxe-Fernández (coordinador), Sociología política del colapso climático antropogénico. Capitalismo fósil, explotación de combustibles no convencionales y geopolítica de la energía
Authors: Sánchez Ricardo Carlos Alberto
Published: October 2020

En 1960, el filósofo polaco Günther Anders publicó, por petición de sus alumnos, “Tesis para la Era Atómica” (Thesen zum Atomseitalket). Las “Tesis…” de Anders son el resultado de un seminario en la Universidad Libre de Berlín, realizado en 1959, cuya temática giró en torno a las implicaciones morales de la Era Atómica.Anders analizó los componentes morales, éticos y filosóficos de la era civilizacional, iniciada el 6 de agosto de 1945 en Hiroshima, caracterizada por un grado de desarrollo de la racionalidad hasta el punto de dar al ser humano la  capacidad material de destruir a la humanidad, a la vida no humana e inclusive al  planeta entero.
De fantasma indomables y rebeldes con historia. Notas sobre el Centenario del asesinato de Emiliano Zapata
Authors: Mellano Julieta Paula
Published: October 2020

El presente artículo se propone analizar la instrumentalización por parte del Estado mexicano del pasado revolucionario a propósito del centenario luctuoso de Emiliano Zapata. Una revisión crítica sobre ciertos momentos históricos de la vida política de México contribuirá a comprender las continuidades y particularidades del momento actual. Los primeros actos del 10 de abril durante la época postrevolucionaria, los de la época cardenista tras el reparto agrario y la expropiación petrolera y el de 1994 tras la reforma al Artículo 27, la puesta en marcha del TLCAN y el alzamiento del EZLN durante el gobierno de Salinas de Gortari serán nuestros contrapuntos y servirán como márgenes a la hora de estudiar las formas simbólicas en las que se institucionaliza la historia y se construye el discurso oficial. A cien años del asesinato del líder campesino -aún referente de las resistencias campesinas y populares a nivel nacional- nos seguimos preguntando por su apropiaciones y expropiaciones, sus alcances y sus límites tanto para el poder en turno como para los movimientos que se alzan contra la dominación.
Estado mental de apego no resuelto, cuidado materno y seguridad del apego en dos diadas madre-hijo/a
Authors: Nóblega Magaly , Szteren Laura , Marinelli Francesco , Bárrig-Jó Patricia , Núñez del Prado Juan , Conde Gabriela
Published: October 2020

El presente estudio busca describir las características de las representaciones de apego de dos madres clasificadas con un estado mental de apego no resuelto, así como las características particulares de la interacción con su hijo/a: la calidad de su cuidado y la seguridad del apego del niño/a. Para las representaciones se empleó la Entrevista de Apego Adulto, para evaluar el cuidado de las madres el Maternal Behavior Q-Set 2.1, y la seguridad en el apego del niño/a se evaluó a través del Attachment Q-Set 3.0. Los resultados muestran que a pesar de que ambas madres tienen un apego no resuelto en función a experiencias de abuso vividas en la infancia, la sub-clasificación (apego Seguro en un caso e Inseguro en otro) está asociada a diferencias en la manera de percibir y responder a las necesidades de su hijo/a y en la seguridad del apego de éstos últimos.
Políticas públicas educacionais e o estabelecimento da Universidade Aberta do Brasil
Authors: Malta Elcimar , Schurster Karl
Published: October 2020

Este artigo tem como objetivo o estudo das políticas relacionadas ao estabelecimento da Universidade Aberta do Brasil (UAB), como principal forma de ampliação e difusão de cursos superiores por meio da Educação a Distância no país. Utilizaremos marcos como leis e decretos pertinentes ao tema e os analisaremos de acordo com a metodologia do ciclo de política proposto por Gary Brewer e elucidado por Howlett, Ramesh e Perl. Faremos a abordagem de documentos como o Plano Nacional de Educação (PNE 2001-2010), que informa sobre o uso da Educação a Distância para o Ensino superior, que possui lacunas significativas a serem preenchidas posteriormente pelos decretos: 5.266/2005, 5.800/2006 e 9.057/2017. Como resultados, temos a reunião e discussão das principais leis e decretos que justificam o estabelecimento da UAB como política pública educacional. Concluímos que esta política iniciou um novo ciclo após o rompimento da hegemonia do Governo Federal, entre os anos de 2003 a 2016.
Modeling the Distribution of the Electromagnetic Field in the Device for Adding the Power of Microwave Magnetrons
Authors: Belov Aleksandr A. , Sobchenko Yuriy A.
Published: October 2020

Substantiation of the physical nature of adding the power of magnetron generators in the device’s waveguide, assessment of the electromagnetic properties of objects without experimental verification, testing of scientific and technical hypotheses for adequacy without creating prototypes are possible by modeling the distribution of the electromagnetic field in the CST Studio program. (Research purpose) The research purpose is to simulate the distribution of the electromagnetic field in the device for adding the power of microwave magnetrons. (Materials and methods) CST Studio software was used to design models of the distribution of the electromagnetic field in the device for adding the power of microwave magnetrons. (Results and discussion) Models of the distribution of the electromagnetic field in the device for adding the power of microwave magnetrons was designed using the CST Studio program. It was found that at operating frequencies of 1, 3, 4 and 5 GHz, the distribution of the electromagnetic field of different densities is dispersed throughout the volume of the waveguide, which does not allow the use of a waveguide of the appropriate size to perform the basic functions of transmission and distribution of microwave energy, while at the operating frequency of 2 GHz the basic operating conditions of the waveguide are observed. It was found that, within the boundaries of the waveguide of the developed device, the force lines of the electromagnetic field propagate from the surface of the emitters into the space of the waveguide, are reflected from the walls, distributed over the volume of the waveguide, and rush to the output open end. (Conclusions) It was found that the generated pulses of the power flow of electromagnetic energy of an ultrahigh frequency of the flux of two magnetrons, corresponding to a value of 116 Volts·Amperes at square meter, propagating throughout the volume of the waveguide at different time intervals according to the operating frequency, take a one-way travel of their electromagnetic field lines from short-circuited end in the direction of the open part of the waveguide, are localized with the highest concentration in the output horn end of the waveguide, which is explained by the phenomena of power addition after providing traveling wave due to the coordination of the metric dimensions of the waveguide and the working wavelength.
Digital Technologies – Innovative Solutions for Agriculture
Authors: Nikitina Marina A. , Osyanin Dmitriy N. , Petrunina Irina V.
Published: October 2020

High-tech decision support systems based on the knowledge of experts in the field of animal feeding and a rigorous mathematical apparatus make it possible to increase the productivity of the animals and provide a high-quality product with the ability to trace the trophological chain from the field to the counter. (Research purpose) To identify methodological approaches for the development of algorithmic support and software for assessment and optimizing the animals diet. (Materials and Methods) The authors complied a structural-parametric model of a productive animal feeding in a cell matrix form. They represented the whole variety of existing known and unknown relationships between the factors of the farm animal state and the feeding ration characteristics. It was found that when forming a feeding ration, it was necessary to assess the degree of influence on productivity of not individual indicators, but its combination. (Results and discussion) The authors considered parametric descriptions of farm animals; diet with selected groups of indicators, characteristics and properties. It was stated that the parametric description of feeding contained a set of parameters taking into account at least 25 nutritional indicators. They presented a mathematical apparatus for evaluating and optimizing the feeding ration. It was determined that the automation of the process of calculating the daily ration of an animal allowed to change the diets depending on the availability of feed in the farm and their chemical composition in real time. The authors found out that an increase in the productivity of animals and poultry by 30-50 percent was possible due to balanced full-fledged feeding. (Conclusions) The authors showed a systematic approach to the development of software for evaluating and optimizing the animal feeding diet. It was revealed that a computer system in the online mode would help to find the best option for a feeding ration, taking into account multifactor and limitations.
The Heating System of Agricultural Facilities Using Excess Heat Power Transformers
Authors: Sopov Anatoliy I. , Vinogradov Aleksandr V.
Published: October 2020

In power transformers, energy losses in the form of heat are about 2 percent of their rated power, and in transformers of large power centers reach hundreds of kilowatts. Heat is dissipated into the environment and heats the street air. Therefore, there is a need to consume this thermal energy as a source of heat supply to nearby facilities. (Research purpose) To develop methods and means of using excess heat of power transformers with improvement of their cooling system design. (Materials and methods) The authors applied following methods: analysis, synthesis, comparison, monographic, mathematical and others. They analyzed various methods for consuming excess heat from power transformers. They identified suitable heat supply sources among power transformers and potential heat consumers. The authors studied the reasons for the formation of excess heat in power transformers and found ways to conserve this heat to increase the efficiency of its selection. (Results and discussion) The authors developed an improved power transformer cooling system design to combine the functions of voltage transformation and electric heating. They conducted experiments to verify the effectiveness of decisions made. A feasibility study was carried out on the implementation of the developed system using the example of the TMG-1000/10/0.4 power transformer. (Conclusions) The authors got a new way to use the excess heat of power transformers to heat the AIC facilities. It was determined that the improved design of the power transformer and its cooling system using the developed solutions made it possible to maximize the amount of heat taken off without quality loss of voltage transformation.
Quantification of the Radiation Effects on the Stability of the Irradiated Plants Development in Light Culture
Authors: Rakutko Sergey A. , Rakutko Elena N.
Published: October 2020

The radiation environment parameters affect not only individual biochemical reactions and physiological processes occurring in the plant, but also make it possible to achieve stable plant development as a whole. (Research purpose) To develop a method, technical means and methodology for the quantitative assessment of the optical radiation effect on plants, the use of which ensures energy efficiency and environmental friendliness of the resulting product by choosing the most optimal light source. (Materials and methods) The authors demonstrated that the stability of plant development can be characterized by fluctuating asymmetry indices, the values of which form uneven optical density on both sides of the leaf. They developed and manufactured an experimental model of a device for measuring leaves' optical density. They studied the cucumber (Cucumis sativus L.) of the Safa mix F1 mid-early hybrid. They used plants in a juvenile age state to reduce the duration of the experiment, that means from the appearance of the first to the appearance of the second leaf. (Results and discussion) The authors found that the differences between the parameters of plants grown under light sources № 1 and № 2 are not significant. They took the parameters of plants grown under light sources № 1 and № 3 for comparison. It was determined that these sources have approximately the same flow shares in the blue range (27.4 and 26.2 percent). They found out that the flow shares in the red range are different (34.4 and 49.5 percent), which determined different values of the ratio R:B (1.3 and 1.9). It was noted that the values of the ratio R: FR (4.1 and 16.3) are also different. (Conclusions) The authors proposed a method for assessing the effect of radiation on plants by the stability of their development. It was established that the application of this method to plants grown under conditions of light culture is promising for a comprehensive assessment of the quality of the light medium created by radiation sources; allows to choose the most optimal light sources.
Analysis of Heat Processes in the Energy Supply System of a Gas-Using Feed Boiler
Authors: Shuvalov Anatoliy M. , Mashkov Aleksey N. , Tikhomirov Dmitriy A.
Published: October 2020

The energy audit conducted on the use of fuel and energy resources in agriculture in the Tambov region showed that energy costs in the cost of production of agricultural products, depending on the type of products produced (milk, meat, vegetables grown in greenhouses, etc.) and their production technology, reach 15-50 percent. On large livestock farms, forage shops and inter-district feed mills are being built for the feed production. Gas-fired cooking cauldrons of low capacity (of 40-250 kilogram per hour) are mainly used for small and private farms. Analysis of low-power cooking boilers has shown that it is possible to improve their energy supply system by applying a method of regulating gas in proportion to the consumed heat flow. Energy savings can reach 40-50 percent. (Research purpose) The research purpose is in designing an equation system for mathematical description of the heat and energy balance of a gas-using cauldron with self-regulation of power to identify energy-efficient modes of its operation. (Materials and methods) Methods of system analysis and synthesis has been used. of knowledge existing in the field of ongoing research on the development of a gas-using digester with self-regulation of power. The methods are based on the theory of heat and mass transfer. (Results and discussion) The article presents a theoretical analysis of heat and power processes occurring in the power supply system of a cauldron with self-regulating power. The authors have designed a heat balance equation describing the processes of heat and mass transfer in a cauldron to identify effective modes of operation of such a power supply system. The article presents derived formulas for determining the useful heat for heating the product in the cauldron, heat loss for heating metal structures, from the enclosing structures to the environment, with outgoing exhaust gases, and from chemical underburning. (Conclusions) The article presents a system of equations that allows to mathematically describe the processes of heat and mass transfer in a gas-using cauldron with self-regulation of power to identify the most energy-efficient modes of its operation. It was found that by improving the power supply system of cauldron by applying a method of regulating gas in proportion to the consumed heat flow, it is possible to achieve energy savings of up to 40-50 percent.
Recommendations for UAV Pre-Flight Preparation
Authors: Kurbanov Rashid K. , Zakharova Olga M.
Published: October 2020

The current level of technical development and accessibility allows to consider unmanned aerial vehicles as a reliable tool for operational monitoring of agricultural territories. Drones are able to observe territories that are inaccessible to helicopters and small aircrafts. The use of drones is associated with certain risks that affect flight safety. (Research purpose) To make recommendations on the preflight preparation of unmanned aerial vehicles. (Materials and methods) The authors used scientific literature, survey materials of domestic and foreign authors, websites of UAV manufacturers. (Results and discussion) The authors examined the issues of a drone registration, key parameters that influence data collection and ensure safe monitoring: operation and storage of drone batteries, visual inspection of a drone, sensors calibration, setting the “return home” point and checking the signal GPS/GLONASS communication quality, test flight, restricted areas and weather conditions. (Conclusions) It was established that UAV pre-flight preparation was an important stage in monitoring agricultural fields, which included a number of operations that were carried out with the aim of ensuring the safety of the operator and the unmanned aerial vehicle, as well as to obtain high-quality aerial photography materials. The authors determined that an unmanned aerial vehicle weighing from 250 grams to 30 kilograms was a object to be registered. They identified the need for specialized software, compliance with the rules of operation and storage of batteries, a thorough visual inspection of the drone, calibration of the compass; checking the setting of the return point to the beginning of the route, the GPS/GLONASS signal level, conducting a test flight, monitoring the readings of the inertial measuring unit and weather conditions, checking the zone of prohibited flights.
Las competencias del neurólogo en Colombia: una propuesta
Authors: Velásquez Gaviria Laura Marcela , Saavedra Estupiñan Myriam
Published: October 2020

INTRODUCCIÓN:
Tener claras las competencias profesionales permite dirigir adecuadamente los esfuerzos académicos, económicos y sociales para cumplir la vocación como neurólogos; hasta ahora, la bibliografía al respecto es escasa.

OBJETIVO:
Describir las competencias profesionales que debe tener un neurólogo clínico en Colombia.

MÉTODOS Y MATERIALES:
Es un estudio cualitativo exploratorio descriptivo, realizado según la teoría fundamentada, mediante una entrevista semiestructurada a 23 líderes de la especialidad en Colombia.

RESULTADOS Y DISCUSIÓN:
A partir de las entrevistas, se redactan según el modelo del Ministerio de Salud, competencias transversales y específicas que complementan las 8 planteadas previamente por ASCOFAME, para un total de 34 competencias divididas en cinco dominios.

CONCLUSIONES:
luego de conocer las competencias profesionales, deben diseñarse criterios de desempeño para medir el logro de esas habilidades. Dado que las competencias dependen de las condiciones de la sociedad, las cuales son cambiantes, su reevaluación debe ser continua.
Guideline on the preventive treatment of chronic migraine, chronic tension type headache, hemicrania continua and new daily persistent headache on behalf of the Colombian Association of Neurology
Authors: Muñoz-Cerón Joe Fernando , Rueda-Sánchez Mauricio , Pradilla-Vesga Oscar Enrique , Volcy Michel , Hernández Natalia , Ramírez Sergio Francisco , Sobrino Fidel , Uribe Bernardo , Guerra Carolina , Jiménez Juan Diego , Ramos Marta Liliana , Pradilla Gustavo , Martínez José David , Torres Cesar Daniel , Torres Gabriel
Published: October 2020

SUMMARY INTRODUCTION:
Chronic daily headache is a high impact entity in the general population. Although chronic migraine and tension-type headache are the most frequent conditions, it is necessary to consider hemicrania continua and new daily persistent headache as part of the differential diagnoses to perform a correct therapeutic approach.
OBJECTIVE:
To make recommendations for the treatment of chronic daily headache of primary origin
METHODOLOGY:
The Colombian Association of Neurology, by consensus and Grade methodology (Grading of recommendations, assessment, development and evaluation), presents the recommendations for the preventive treatment of each of the entities of the daily chronic headache of primary origin group.
RESULTS:
For the treatment of chronic migraine, the Colombian Association of Neurology recommends onabotulinum toxin A, erenumab, topiramate, flunarizine, amitriptyline, and naratriptan. In chronic tension-type headache the recommended therapeutic options are amitriptyline, imipramine, venlafaxine and mirtazapine. Topiramate, melatonin, and celecoxib for the treatment of hemicrania continua. Options for new daily persistent headache include gabapentin and doxycycline. The recommendations for inpatient treatment of patients with chronic daily headache and the justifications for performing neural blockades as a therapeutic complement are also presented.
CONCLUSION:
The therapeutic recommendations for the treatment of chronic daily headache based on consensus methodology and Grade System are presented.
Ataque isquémico transitorio como manifestación inicial de arteritis de células gigantes: reporte de caso
Authors: González Manrique Guillermo , Baldovino Chiquillo Ana María , Claros Ortiz Katherine Viviana
Published: October 2020

La arteritis de células gigantes es la vasculitis sistémica de medianos y grandes vasos más frecuente en adultos mayores de 50 años. Afecta de manera preferencial a las ramas de las arterias carótidas y vertebrales, pero también se han visto involucradas las arterias axilares, las femorales y las iliacas. Se reporta el caso de un paciente adulto que debutó con clínica de accidente isquémico transitorio asociado con cefalea frontotemporal de moderada intensidad persistente. A la exploración física se encontraba con arterias temporales prominentes y dolorosas, pero no refería síntomas o signos de claudicación mandibular ni de polimialgia reumática. Se confirmó el diagnóstico de arteritis de células gigantes mediante biopsia de arteria temporal y se instauró corticoterapia de forma temprana con buena respuesta al tratamiento. Los eventos isquémicos cerebrovasculares son una presentación relativamente poco frecuente y se han descrito clásicamente cuando ya se han iniciado síntomas de vasculitis. En este caso se presentó como manifestación inicial del periodo activo de la enfermedad, lo cual conlleva un reto diagnóstico que es importante tener en cuenta para iniciar las medidas terapéuticas de manera precoz y disminuir las complicaciones potencialmente graves asociadas. Dentro de tales medidas es preciso destacar el uso de agentes biológicos como el tocilizumab que como terapia adyuvante reduce el riesgo de recaída y la exposición acumulativa de corticoides, en comparación con la monoterapia con corticoides en ciertos casos de arteritis de células gigantes con complicaciones.
Síntomas afectivos en pacientes con lesiones talámicas y su correlación con el patrón de conectividad talamocortical: revisión sistemática de la literatura
Authors: Vargas Rubio José Guillermo , Casas Duarte Lorena , Reyes Gavilán Pablo , Iragorri Cucalón Angela María
Published: October 2020

Desde la década de 1970, la disponibilidad de neuroimágenes estructurales (tomografia computarizada y resonancia magnética) y funcionales como la tomografía computarizada por emisión de fotón único (SPECT), la tomografia por emisión de positrones (PET) o la resonancia magnética funcional (fMRI)), abrió una nueva via en el estudio de la relación bidireccional que existe entre los fenómenos comportamentales y la actividad neuronal. La introducción de estas técnicas condujo a una mejor comprensión del impacto de una lesión cerebral en la actividad cortical y en el desarrollo de síntomas psiquiátricos. Explicar la presencia de síntomas afectivos como una alteración en la función de una estructura cerebral es insuficiente, y se debe considerar siempre un compromiso de los circuitos cerebrales. Muchos trastornos del afecto se han asociado con lesiones en las conexiones talamolímbicas, incluyendo trastorno depresivo mayor, trastorno obsesivo-compulsivo, adicción a sustancias psicoactivas y trastorno de estrés postraumático, por lo que la identificación de los tractos de conectividad puede proporcionar nuevos medios para una intervención terapéutica eficaz.
Videojuego para la enseñanza de la realización de diseños de iluminación siguiendo el RETILAP
Authors: Triana-Rojas Edy Andrés , Camargo-Mendoza Jorge E.
Published: October 2020

En este documento se plantea el diseño de un videojuego, como herramienta alternativa de aprendizaje de las metodologías para realizar diseños de iluminación. El videojuego se ha diseñado bajo la plataforma Unity y consta de cinco niveles. Los tres primeros están basados en las metodologías de diseño de iluminación interior, el cuarto hace referencia a iluminación deportiva, mientras que el quinto nivel está dedicado a iluminación de emergencia, teniendo en cuenta la normatividad contemplada en el Reglamento Técnico de Iluminación y Alumbrado Público (RETILAP). Realizar diseños de iluminación sin tener en cuenta lo contemplado en el RETILAP, acarrea consecuencias graves en la salud visual de las personas, y facilita el bajo rendimiento laboral por parte de los trabajadores en las organizaciones, como se verá más adelante. Por medio del videojuego, las personas vinculadas al gremio de la iluminación podrán conocer y aplicar la normatividad y metodologías de diseño vigente de una manera didáctica y fácil, con lo cual se busca minimizar los diseños de iluminación erróneos y mitigar sus consecuencias.
El procedimiento de la fuerza ficticia: un símil del método del potencial unidimensional equivalente en la solución del problema de Kepler
Authors: González Sierra Hernando , Toledo Chavarro Cristian Camilo
Published: October 2020

Se elabora un procedimiento alternativo al del método del potencial unidimensional equivalente para describir las características cualitativas del movimiento de dos partículas bajo el efecto de fuerzas centrales, aplicándolo al caso específico del problema de Kepler relacionado con el movimiento de los planetas alrededor del sol; es decir, para la ley de fuerza atractiva inversamente proporcional al cuadrado de la distancia. El nuevo tratamiento denominado “Método de la fuerza ficticia” es implementado en el contexto de la Mecánica Clásica y difiere del método del potencial unidimensional equivalente a que en lugar de emplear el potencial ficticio  se usa la fuerza  ficticia; desde esta última perspectiva, se identifica que se está tratando con  un símil,  ya que se actúa en la misma área del conocimiento, y que se refiere a una nueva herramienta de características geométricas para obtener soluciones de tipo  cualitativo  a los efectos cinemáticos cuando se tienen fuerzas centrales entre dos cuerpos. El símil, para el caso particular tratado en el presente, conduce a los mismos resultados del método del potencial unidimensional equivalente, que proporciona secciones cónicas como trayectorias para la fuerza atractiva del cuadrado inverso entre los cuerpos, pero tiene la ventaja de que se pueden cuantificar los valores de la fuerza efectiva para algunas órbitas específicas. Al igual que el método del potencial unidimensional equivalente, el símil de la fuerza ficticia puede ser aplicado a otras leyes de fuerzas centrales de forma arbitraria y, lo más importante, el procedimiento podría mostrar su potencialidad en otras áreas de la física contemporánea, ciencias físicas y afines e ingenierías.
Proyección espacio-temporal del Covid-19 en Pereira
Authors: Granada-Echeverri Mauricio , Molina-Cabrera Alexander , Granada-Echeverri Patricia
Published: October 2020

El brote actual de la enfermedad por coronavirus (COVID-19), que se informó por primera vez en Wuhan, China, el 31 de diciembre de 2019, ha dejado un saldo al 19 de abril de 2020 de más de 3500000 infectados y 160000 muertes en 185 países. En este trabajo utilizamos un modelo basado en el Método de Cadena Microscópica de Markov (MCMM, Markov Microscopic Chain Approach) para estimar la propagación del COVID-19 en la ciudad de Pereira (Risaralda-Colombia). Este modelo incorpora importantes aspectos de la población, relacionados con: ubicación espacial dentro de la ciudad discretizada por comunas, movilidad entre comunas, estratificación por grupos de edad y separación de individuos en siete compartimientos epidemiológicos. Este modelo se utiliza para predecir, en una línea de tiempo, la incidencia de epidemias en poblaciones geolocalizadas, lo que se traduce en una herramienta indicadora para tomar medidas de control. Así, el resultado de la metodología caracteriza la evolución en el tiempo y el espacio de la proporción de los individuos en cada uno de los compartimientos epidemiológicos y en cada grupo etario. Los datos que se refieren a COVID-19, desde la municipalidad de Pereira, hasta el 20 de abril de 2020, se utilizan para alimentar el modelo y obtener las proyecciones espacio-temporales. Los resultados presentados consideran múltiples escenarios de movilidad, de forma que el aplanamiento de las curvas de los diferentes compartimientos epidemiológicos pueda ser visualizados de acuerdo a diferentes estrategias de confinamiento. Por tratarse de un modelo espacio-temporal, los resultados del modelo pueden ser presentados fácilmente como mapas de calor sobre cada uno de los compartimientos epidemiológicos, a fin de facilitar los procesos de toma de decisiones.
The Effect of Remuneration, Work Motivation and Job Satisfaction on Employees Performance
Authors: Rapsanjani Anggi , Johannes Singmin
Published: October 2020

This study aims to analyze the effects of remuneration, work motivation, and job satisfaction on employees performance. The object of this study are employees working at Housekeeping Department of PT XYZ. This research was conducted to 153 respondents (proportionate simple random sampling) from the total populations of 246 employees. Determination of the number of samples to this research by using the Slovin Formula on employees at the Housekeeping Department of PT. XYZ. This research used quantitative approach by distributed questionnaires. The analyzing used Multiple Linear Regression (SPSS version 23). The results of this study indicate that remuneration, work motivation and job satisfaction have significant positive effects on employees performance. Job satisfaction variable is the most influential variable followed by work motivation and remuneration. It is suggested that the management of PT XYZ to pay attention to promotion policy by multiplying the information about promotion. Its implementation should be more open and involving union so that all employees have the equal opportunities to get their career advancement.