bluuebunny/crossref_metadata_2025 huggingface dataset:
Generation of mesostructure for lattice discrete particle model
Authors: Vozáb Jan , Vorel Jan , Marcon Marco , Podroužek Jan , Wan-Wendner Roman
Published: April 2022

A preliminary study of two approaches for the internal structure generation utilized in the lattice discrete particle models (LDPM) [1] is presented. The presented methods used for particle generation and placement are meant to capture the internal structure of materials realistically. The first approach governs the positioning of the generated spherical particles by a gradient field to mimic the casting process. The second approach considers the non-spherical shape of individual particles, i.e. ellipsoidal particles. Therefore, the grain size, angularity, and flakiness can be controlled to match the real grain distribution closely.
Использование псевдоневязок при исследовании сходимости неустойчивых разностных краевых задач для линейных неоднородных обыкновенных дифференциальных уравнений второго порядка
Authors: Маклаков Владимир Николаевич , Maklakov Vladimir Nikolaevich
Published: April 2022

При исследовании краевых задач для неоднородных линейных обыкновенных дифференциальных уравнений второго порядка с переменными коэффициентами рассмотрен предложенный ранее метод численного интегрирования, использующий средства матричного исчисления. Согласно указанному методу при составлении системы разностных уравнений можно выбрать произвольную степень многочлена Тейлора в разложении искомого решения задачи в ряд Тейлора, отказавшись при этом от аппроксимации производных конечными разностями.
Исследованы некоторые аспекты сходимости неустойчивой разностной краевой задачи второго порядка. Для обыкновенного дифференциального уравнения введено понятие псевдоневязки на некотором векторе.
На основе точного решения разностной краевой задачи построено приближенное решение, на котором норма псевдоневязки отлична от тривиального значения.
Теоретически установлено, что оценка нормы псевдоневязки уменьшается при увеличении используемой степени многочлена Тейлора и при уменьшении шага дискретизации сетки.
Даны определения условной устойчивости и условной сходимости; установлена теоретическая связь между ними.
На основе найденного вектора псевдоневязок построено возмущенное решение и вычислена оценка нормы его отклонения от точного решения разностной краевой задачи, позволяющая выявить наличие условной устойчивости.
Установлена теоретическая связь между сходимостью и условной сходимостью.
Приведены результаты численных экспериментов.
If the script doesn’t work, change the script
Authors: Turner Julianne C.
Published: April 2022

Every career is different, emerging from different circumstances and almost always influenced by unforeseen opportunities and challenges. The script we write will be revised and edited many times. I have found my script changing at important junctures in my career. This reality is difficult to convey to researchers just starting out, but it is important to know. As have others in this series, I hope that some of the opportunities and challenges in my career can inform or support them as they travel similar roads. In looking back on my journey to and through educational research, I will try to show how striving, persistence, and taking risks helped me to forge the path I wanted to travel. I learned that following my own path rather than the current fashion, thinking outside the box to solve problems, emphasizing the quality of my work and cultivating relationships with schools all helped me to persist and to change the script when I needed to in order to reach my goals.Download the PDF and read more about Dr. Turner's journey.
Analysis of the Effect of E-Satisfaction and E-Trust on Loyalty in E-Commerce
Authors: Putra Jerry Aldian , Hidayat Anas
Published: April 2022

This research aims to analyze the effect of e-satisfaction and e-trust on attitudinal loyalty and behavioral loyalty in e-commerce in Indonesia. This research also analyzed the effect of behavioral loyalty on attitudinal loyalty. This research used SEM (Structural Equation Model) AMOS version 24 and the data collection used questionnaire method. The population in this research were undergraduate students who had at least 2 times shopping at e-commerce. There were 254 respondents in this research. The results obtained that e-trust had positive and significant effect on e-satisfaction, and e-satisfaction had positive and significant effect on attitudinal loyalty and behavioral loyalty. However, in the research, it was found that e-trust had negative and significant effect on attitudinal loyalty, and e-trust had positive but insignificant effect on behavioral loyalty. In this research, it was also found that behavioral loyalty had positive and significant effect on attitudinal loyalty.
Role of Communication in the Process of a Better Socio Sanitary and Environmental Supervision of Artisanal Dyeing and Textile Activity in Burkina Faso: Case of the Craft Industries of Arrondissement Number 6 in the Commune of Ouagadougou, Burkina Faso
Authors: COMPAORE Jérôme
Published: April 2022

The current study was about the issue of the role that communication plays in the frame of a better

organization of the socio-sanitary and environment sector of craft industry and textile in Burkina Faso, and which served the study object in arrondissement number 6 of the commune of Ouagadougou. This study aims at showing that the implementation of management mechanisms contributes to the use of efficient communication tools system. That one can help bringing up with a good organization in the processing chain of the dyeing activity, by protecting women and men working in the domain, and considering environment’s protection and our living area.
Where's the harm? Screening student evaluations of teaching for offensive, threatening or distressing comments
Authors: Gibson Matthew J. , Luong Justin , Cho Hanbit , Moh Bryan , Zanin Simone , Djatmiko Mentari , Aandahl R. Zach
Published: April 2022

Student evaluation surveys provide educational institutions with important feedback regarding the student experience of teaching and courses; however, qualitative comments can contain offensive, insulting or threatening content. Large educational institutions generate thousands of comments per academic term; therefore, manual screening processes to find potentially harmful comments are not generally feasible. We developed a methodology for semi-automated screening of student comments that incorporates a machine learning decision support system and a detailed psychological assessment protocol. In a case study at a large public Australian university, our system identified 4,258 out of 62,049 (6.9%) comments as potentially harmful and requiring further review. Feedback from stakeholders demonstrates that this methodology is useful in reducing staff workload and could be broadly applied to different settings.
Implications for practice or policy:

Educational institutions can adopt this methodology to dramatically decrease the number of working hours required to screen harmful free-text comments.
Researchers can use the proposed psychology-based assessment as an example of how to develop a protocol to categorise comments.
Educators and researchers can use this case study to follow best practices to develop their own decision support system that implements free-text comment classifiers.
Does Variable Shift Work Explain Away Productivity Shocks? A Bayesian Approach
Authors: Engelhardt Lucas M.
Published: April 2022

In business cycle accounting, productivity is procyclical. However, this may be an illusion caused by improperly accounting for changes in procyclical capital utilization. This paper considers to what extent incorporating variable shift work into a dynamic stochastic general equilibrium model reduces the role played by productivity shocks in explaining variations in output. In the one shift version of the model, 81 percent of the variation in output is explained by productivity shocks. With variable shift work, the contribution falls to a minimum of 48 percent. While variable shift work decreases their importance, productivity shocks continue to be the most significant contributor to the variation of output over the business cycle.
Free-space-coupled wavelength-scale disk resonators
Authors: Mirzapourbeinekalaye Babak , Samudrala Sarath , Mansouree Mahdad , McClung Andrew , Arbabi Amir
Published: April 2022

Optical microresonators with low quality factor (

Q

$Q$

) can be efficiently excited by and scatter freely propagating optical waves, but those with high

Q

$Q$

typically cannot. Here, we present a universal model for resonators interacting with freely propagating waves and show that the stored energy of a resonator excited by a plane wave is proportional to the product of its

Q

$Q$

and directivity. Guided by this result, we devise a microdisk with periodic protrusions in its circumference that couples efficiently to normally incident plane waves. We experimentally demonstrate several microdisk designs, including one with a radius of 0.75

λ
0

${\lambda }_{0}$

and

Q

$Q$

of 15,000. Our observation of thermally-induced bistability in this resonator at input powers as low as 0.7 mW confirms strong excitation. Their small footprints and mode volumes and the simplicity of their excitation and fabrication make wavelength-scale, free-space-coupled microdisks attractive for sensing, enhancing emission and nonlinearity, and as micro-laser cavities.
A novel application of synthesised based squarylium dyes on nylon 6, and silk woven fabrics
Authors: Ali Yakubu , Odey Joseph O. , A Giwa , Bello K. A
Published: April 2022

Squarylium dyes were synthesized and characterized by different spectrometric techniques using FT-IR, UV-visible and GC–MS, the dyes gave molar extinction coefficient values greater than 5.2812 × 105 L mol−1 cm−1. Their fastness properties in respect to wash, light, perspiration and hot pressing on nylon 6, and silk fabrics were analyzed, effects of time, temperature, carrier concentration and pH was also investigated and reported. The dyed fabrics showed good to very good wash, light fastness, and perspiration good to very good hot pressing on nylon 6 and good to very good on silk fabric, respectively. The dye-bath exhaustion was found to be between 76 and 92% on nylon 6 and 57 and 85% on silk, respectively. The percentage exhaustion on nylon 6 was found to be very good to excellent but on silk it was found to be good to very good. These studies showed that squarylium dyes can be applied to nylon 6 and silk fabrics, but better performance was found on nylon 6 than silk fabric.
Development of a numerical stochastic model of joint spatio-temporal fields of weather parameters for the south part of the Baikal natural territory
Authors: Akenteva Marina S. , Kargapolova Nina A. , Ogorodnikov Vasily A.
Published: April 2022

The paper is focused on the construction of a numerical stochastic model of the joint spatio-temporal fields of air temperature, wind speed vector with three-hour resolution, and semidiurnal precipitation amounts according to observation data at a group of weather stations located in the south of the Baikal natural territory. The model also takes into account the dependence of one-dimensional distributions on temporal and spatial coordinates. The heterogeneity of the field in spatial correlations and the periodical correlation in time are also taken into account. The results of calculations for verification of the model are presented. An example of using the developed model to study the properties of time series of the wind chill index is given.
Predictability of the low-frequency modes of the Arctic Ocean heat content variability: a perfect model approach
Authors: Gritsun Andrey S.
Published: April 2022

The problem of potential predictability of the temperature of the upper layer of the Arctic Ocean for the data of pre-industrial climate modelling run by the INM-CM5 Earth system model developed at the INM RAS is considered. The main attention is paid to the analysis of predictability of the phases of the dominant modes of low-frequency variability of the Arctic Ocean circulation. The initial estimate of its predictability is made by using the method of analogues and calculating the resonances of the invariant measure. Then this estimate is verified by direct ensemble calculations with the model. The results obtained indicate that the maximum predictability time interval reaches ten years for 15-year average values of heat content and corresponds to the states with maximum positive anomalies along the leading low-frequency variability modes.
Optimal stochastic forcings for sensitivity analysis of linear dynamical systems
Authors: Nechepurenko Yuri M. , Zasko Grigory V.
Published: April 2022

The paper is devoted to the construction of optimal stochastic forcings for studying the sensitivity of linear dynamical systems to external perturbations. The optimal forcings are sought to maximize the Schatten norms of the response. As an example,we consider the problem of constructing the optimal stochastic forcing for the linear dynamical system arising from the analysis of large-scale structures in a stratified turbulent Couette flow.
Classification of load and rotational speed at wire-race bearings using Convolutional Neural Networks with vibration spectrograms
Authors: Bäßler Robin , Bäßler Tim , Kley Markus
Published: April 2022

We propose a model to classify axial, radial loading profiles and rotation speed of wire-race bearings using Convolutional Neural Networks with spectrograms. Software-based models are able to measure quantities of machine elements. In many cases a physical sensor takes up a lot of space and is expensive. Wire-race bearings are lightweight bearings that can be installed in a space-saving manner. For predictive maintenance of the load-dependent lifetime estimation there is the need to record the stress conditions on the bearing. While force sensors have the ability to record these necessary stresses, they cannot be installed space-savingly.

With the proposed setup using an accelerometer attached to the housing of a wire-race bearing, it is possible to both save space and reduce the number of physical sensors. Furthermore, we can show that the model is able to predict unseen data from 168 different load profiles with an overall accuracy of 86.3 %. In several experiments we generated vibration data which is processed using the fast Fourier transform algorithm and spectrograms. We show that image classification of spectrograms with Convolutional Neural Networks significantly outperforms other models with fast Fourier transforms fed into Artificial Neural Networks or logistic regression.
The solid solutions TbCuIn1–x

M

x
(M = Al, Ga)
Authors: Horiacha Myroslava , Nychyporuk Galyna , Pöttgen Rainer , Zaremba Vasyl
Published: April 2022

The complete solid solutions TbCuIn1–x

M

x
(M = Al, Ga) were studied by powder X-ray diffraction and scanning electron microscopy for samples equilibrated at T = 873 K. The influence of In substitution by Al or Ga, the solubility ranges and the changes of unit cell parameters have been determined: TbCuIn1.0–0Al0–1.0 (ZrNiAl type, space group P

6
‾

2

$\overline{6}2$

m, a = 0.7457(1)–0.7035(1), c = 0.3958(1)–0.4044(1) nm, V = 0.1906–0.1733 nm3); TbCuIn1–0.8Ga0–0.2 (ZrNiAl type, a = 0.74569(5)–0.73882(13), с = 0.39582(3)–0.39663(14) nm, V = 0.1906–0.1875 nm3); TbCuIn0.3–0Ga0.7–1.0 (KHg2 type, Imma, а = 0.43943(9)–0.43750(5), b = 0.70833(12)–0.70537(6), с = 0.74866(12)–0.74525(7) nm, V = 0.2330–0.2300 nm3). The crystal structure of TbCuIn0.42(1)Al0.58(1) was refined from single-crystal X-ray diffractometer data: ZrNiAl type, P

6
‾

2

$\overline{6}2$

m, a = 0.71633(6), c = 0.40785(3) nm, wR2 = 0.0379, 291 F
2 values and 16 variables. The basic crystal chemical features are discussed.
Imitation Models for Testing of the Gymnastic Springboard Stiffness
Authors: Zanevskyy Ihor , Zanevska Lyudmyla
Published: April 2022

Competition results in gymnastic vaults depend in great measure on testing and tuning of the springboard’s mechanical parameters, especially the stiffness. There are four empirical tests of the gymnastic springboard; one of them is a static test, and the three others are dynamics tests. The accuracy of the well-known springboard model (with an error up to 70 %) is not acceptable in the testing. Therefore, the purpose of this research is to develop a model for the imitation of springboard stiffness testing that should have appropriate accuracy in engineering calculations. Gymnova (2012) was studied as popular equipment for gymnastic springboard vaulting. In the main load range area (1,500 ÷ 3,500 N), according to the experimental testing, displacements of the upper board obey the linear function approximately on 99.7 %. The corresponding error of the elastic solid-body model developed in this research is 3.6 %, contrary to the multibody model created by Lehmann et al., where it is about 45.9 %, i.e., 13 times over. The mechanical and mathematical model of gymnastic springboard that was developed in this research, created on the basis of an overhanging beam with a console protrusion, has quite acceptable accuracy and can be recommended for engineering calculations, virtual testing, and simulation of the technique performing gymnastic vaults.
Evaluation of the Material Point Method in Modeling the Post-failure and Run-Out of Translational Landslide: A Case Study in Taiwan
Authors: Yeh Fu-Hsuan , Lai Yi-Chun , Ge Louis , Cheng Shih-Hao
Published: April 2022

The material point method (MPM) is an extended finite element method used to simulate large deformation scenarios. A massive translational landslide in Taiwan was adopted to validate the numerical technique for thorough investigations, including the digital terrain models (DTMs), laboratory experiments, and numerical analyses were available in a forensic report. The MPM code Anura3D was used to mimic the landslide’s kinematics, post-failure, and run-out process. An unstable sandstone/shale interlayer was found to lead to the slope sliding; therefore, the before-and-after DTMs from the report mentioned above were used to examine the run-out distance and deposition to determine the best fit for reduced material properties for this layer. The sliding paths, displacements, deviatoric strains, and the velocities of the sliding can be evaluated by dividing the material points into several groups to differentiate the kinematics among them. Meanwhile, the landslide duration and possible maximum safety distance were also assessed. This study has demonstrated that the MPM can analyze the large deformation, post-failure, and run-out distance of landslides. The critical timing of a slope failure is possible to be an essential index on national spatial planning for future disaster reduction.
Results of a Pilot Study in Support of a Round-Robin on Creep-Fatigue Crack Growth Testing of a Creep-Brittle Material for ASTM E2760
Authors: Gibson Cody , Stephens Robert , Narasimhachary Santosh B. , Mills David E. , Rosenberger Andrew
Published: April 2022

This paper describes pilot test results from a round-robin conducted in support of the standard ASTM E2760, Standard Test Method for Creep-Fatigue Crack Growth Testing, on creep-fatigue crack growth testing. Results from the pilot study are recommended to participants to develop their individual experimental testing. This round-robin is an international effort with 10 participants from five countries from Asia, North America, and Europe. All participants are testing compact type (C(T)) specimens according to the procedure described in the standard. A few participants are evaluating the Kb-bar (surface crack) specimen configuration. The test material is Inconel-718 (IN718) nickel-based alloy, which is a creep-brittle alloy. Pilot creep-fatigue crack growth tests were conducted at 600°C using C(T) specimens under constant load amplitude conditions. The tests were conducted at hold times of 0, 60, and 600 s. Creep-fatigue crack growth rates were analyzed using the methods proposed and included in the test standard. It was found that the procedures followed throughout the pilot test program were sufficient in generating the desired outcomes. As a result, it is proposed that the various participants follow the procedures and test matrix as close as possible and document any deviations. This will allow data from the various participants to be assessed and determine the levels of precision and bias in creep-fatigue crack growth data obtained using the ASTM standard.
Prilagodbe lektirnih sadržaja učenicima s teškoćama u osnovnoj školi
Authors: Boras Valerija
Published: April 2022

Uspješnost integracije učenika s teškoćama u obitelj, školu, zajednicu, radno mjesto i društvo ovisi o njegovim temeljnim obrazovnim postignućima, posebno o razvoju čitalačke pismenosti. Jedna od temeljnih komponenti za razvoj čitalačke pismenosti je školska lektira. Važnost školske lektire nije samo naučiti učenika čitati već i uvesti ga u svijet djela, potaknuti maštu, logičko zaključivanje, moralno i životno razmišljanje. Dostupnost školske lektire učenicima s teškoćama u Republici Hrvatskoj izuzetno je ograničena te se često oslanja na kreativnost i inicijativu pojedinog učitelja. Ovaj rad bavi se prikazom lektirnih djela, prilagođenih učenicima s teškoćama u osnovnoj školi, dostupnih na hrvatskom tržištu. Jednako tako u radu će se prikazati preporuke za prilagodbu sadržaja lektirnih djela za učenike s intelektualnim teškoćama i jezično-govorno glasovnim komunikacijskim teškoćama.
Preschool Children and their Preconceptions of Nature in a Nursery School Setting
Authors: Krátká Pavla , Srbená Alena
Published: April 2022

The present paper focuses on preschool children’s pre-literacy in natural science with an emphasis on their preconceptions of nature in the current conditions of nursery schools in the Czech Republic. The key objectives of the paper include the following: Examine how children interpret the term nature. The objective and focus of the paper are based on the assumption that if people understand the theory of a particular topic, they are also interested in its practical aspects. In the context of nature and its protection, this idea may be interpreted as follows: If we understand nature and its fundamental laws, we can protect it better. Nature and environmental protection is becoming increasingly relevant and must be supported from early childhood from a global perspective.
Perspektive utjecaja provedbe kurikuluma građanskoga odgoja i obrazovanja na skriveni kurikulum u školama
Authors: Nikičić Igor , Komesarović Zoran
Published: April 2022

Poučavanje tema Građanskog odgoja i obrazovanja provodi se u svim zemljama Europske unije, tako i u Republici Hrvatskoj te u mnogim zemljama svijeta. Ostvarivanjem temeljnih ishoda kurikuluma Građanskoga odgoja i obrazovanja u školama učenici se transformiraju u dobroga građanina koji posjeduje vještine, stavove i znanja potrebne za aktivno i svrsishodno sudjelovanje u društvenom životu zajednice te ostvarivanje punih potencijala pojedinca. Kurikulum Građanskoga odgoja i obrazovanja nizom svrsishodnih pedagoških pristupa i učinkovitih metoda poučavanja, koje podrazumijevaju aktivno sudjelovanje učenika u životu i radu škole i lokalne zajednice pokreću društvenu zajednicu prema izgradnji boljeg društva. Potencijal ovih i ovakvih aktivnosti je jasan, budući skriveni elementi kurikuluma predstavljaju učenje stavova, normi, vjerovanja, vrijednosti i pretpostavki. Skriveni kurikulum u školama pored javno određenih ciljeva odgoja i obrazovanja ostvaruju i brojni drugi, često prikriveni, ali važni ciljevi odgoja i obrazovanja. Proučavanje skrivenoga kurikuluma i Građanskoga odgoja i obrazovanja u školama, dva su naizgled konceptualno različita pojma, ali je jasna i njihova spona. Ona se najzornije odražava u primjeru rada učenika na sudioničkom donošenju odluka (npr. razredna pravila/ izbor predstavnika razreda) gdje se direktno pokazuju poželjni obrasci ponašanja unutar zajednice koja zatim daje signale o „dojmu“ koji ostavlja jedna (razredna) zajednica prema drugim sudionicima odgojno-obrazovnoga procesa i prema ustanovi škole. Istraživanjem dostupne literature i provedenih istraživanja u Europskoj uniji i Republici Hrvatskoj utvrđena su zanimljiva saznanja o mogućim utjecajima provedbe kurikuluma Građanskoga odgoja i obrazovanja u školama na skriveni kurikulum u školama.
Interest of Primary School Students in Music
Authors: Ružić Vesna , Cvitković Kalanjoš Ines
Published: April 2022

Teaching music, which is carried out in primary school education through the subject Music Culture plays a major role and forms students’ musical competences as part of the cultural development of students. Listening is the only activity in music that includes an aesthetic level, so the level of aesthetic education depends on the amount of time devoted to this activity. The interest of children in music has the greatest influence on the cultural environment, but the influence of the family is even greater, no matter how accessible listening to music is with mass media. Attitude towards music is mostly inherited from parents. This paper discusses the interest of primary school students for music and what type of music they are opting for. The research was carried out by survey involving pupils from 1st to 4th grade in two primary schools in the area of Koprivnica-Križevci County. The aim and task of the research was to determine possible problems both in teaching Music Culture and the musical life of students and try to find a solution to them, so that they would be more interesting and useful to the students and to awaken students’ interest. A descriptive method was used during the study and as the subject of the survey research. We assumed that the interest of primary school students is high and that their interest is moving in the direction of folk and turbo folkmusic. A survey conducted in the two schools of Koprivnica-Križevci County showed that the majority of students of these schools have a positive approach to music, but also observed differences between the school in urban and the school in the rural area.
Herramienta diagnóstico para competencia técnica de laboratorios de ensayo y calibración
Authors: Gómez Solano Luz Myriam , Hernandez Cruz Harold Wilson , Hernandez Peña Lida Constanza , Vergara Gómez Pablo
Published: April 2022

Las organizaciones privadas o públicas que en el interior de sus procesos tienen un laboratorio de ensayos, calibración o investigación y que presten servicios a usuarios, conocen de la importancia y la necesidad de acreditar esas metodologías y demostrar sus competencias técnicas, como estrategia para obtener reconocimiento y posicionamiento en el sector, proporcionando a sus resultados solidez y confianza frente a la competencia del mercado. Razón por la cual el diagnóstico de cumplimiento de los requisitos generales de competencia técnica de laboratorios de ensayo y calibración con respecto a la norma ISO/IEC 17025:2017 cobra una gran importancia. Como resultado del proceso de investigación se presenta una herramienta elaborada en colaboración con el Grupo de Planeación y la Dirección de Laboratorios del Servicio Geológico Colombiano y se aplicó a seis ensayos de laboratorio para valorar el grado de cumplimiento de los requisitos con el futuro propósito de acreditar la competencia técnica ante organismos competentes. Los resultados arrojan los niveles de cumplimiento de acuerdo con los requisitos de la norma mencionada, la aplicación de la herramienta permitió su validación de contenido tomando como muestra la entidad, los resultados fueron positivos frente a su construcción y coherencia en el cumplimiento de los requisitos de la norma NTC-ISO/IEC 17025:2017.
Herramienta para la definición de la orientación estratégica de la innovación para organizaciones
Authors: García Pineda Vanessa , Macías Urrego Jackeline Andrea
Published: April 2022

Como objetivo principal, se diseñó una herramienta que facilita la definición de la orientación estratégica enfocada a la innovación en las organizaciones. Se realizó la búsqueda de información principalmente enfocada en los aportes fundamentales para el desarrollo estratégico de las organizaciones definidos por algunos autores. Se construyó una herramienta integradora que permite evaluar la situación general de la empresa y entregar resultados que facilitan la orientación de la toma de decisión estratégica de innovación. Finalmente, sabiendo que la definición estratégica es un proceso difícil de precisar en las organizaciones, esta herramienta, permite por medio de preguntas, determinar la respuesta para cada aspecto o componente de la compañía, entregando un resultado final que sea aproximado a la realidad de la empresa.
Norma ISO 50001 Mecanismo facilitador que fortalece la gestión pública en organizaciones del Estado
Authors: Díaz Méndez Edwin Gustavo , Hernandez Cruz Harold Wilson
Published: April 2022

La gestión de la eficiencia energética en las entidades del sector público requiere de avances y herramientas que permitan su medición e integración a los demás sistemas de gestión aplicables, es así como la NTC-ISO 50001:2019 brinda un marco adecuado para dicha gestión. Se propone un banco de herramientas integradas en un portal web que gira principalmente en torno a tres elementos; el primero de ellos asociado a la creación de una línea base de consumo, el segundo elemento es un instrumento de medición integrado con el MIPG que permita establecer el grado de madurez asociado a los controles de la NTC ISO 50001:2019 implementados dentro de la entidad y, por último, un conjunto de guías, formatos y documentos orientadores para la implementación del SGEn publicados en un portal web. Resultado de la valoración de expertos y la aplicación del de medición y la metodología de línea base se evidenció que el resultado de la investigación entrega elementos que permiten evaluar la gestión, administración, control y mejora continua con base al uso eficiente de la energía y, por ende, mayor austeridad en el gasto público.
Salud y seguridad psicológicas en el trabajo: gestión de peligros y riesgos psicosociales. Panorama investigativo y normativo
Authors: Rodriguez Rojas Yuber Liliana
Published: April 2022

En la actualidad las organizaciones se ven en la necesidad de implantar diferentes estrategias herramientas de gestión que favorezcan su sostenibilidad ante peligros existentes y emergentes. En los últimos años han surgido peligros emergentes derivadas de la incorporación de las tecnologías de la información y la comunicación, la innovación en procesos, las nuevas formas de vinculación, nuevas materias primas y herramientas de trabajo, la pandemia generada por el SARS COV 2, entre otros aspectos. estos peligros conllevan hay nuevas formas de enfermar y a otros factores de riesgo asociados, uno de ellos tiene que ver con los aspectos psicosociales.
Modern imaging techniques in the monitoring of patients with multiple myeloma
Authors: Pop Vlad Stefan , Tomoaia Gheorghe , Parvu Andrada
Published: April 2022

Bone disease for many patients is a serious problem, often causing pathological bone fractures; a spinal collapse, in conclusion, is a disease that affects the quality of life. It is the most frequent feature of multiple myeloma (MM), and it is used to put a diagnostic and the need to start treatment. Because of these complications, imaging plays a vital role in the diagnosis and workup of myeloma patients.

For many years, the conventional radiography has long been considered the gold standard for detecting bone lesions. The main reasons are the wide availability, the low cost, the relatively low radiation dose, and the ability of this imaging method to cover the entire bone system. Because of its incapacity to evaluate the response therapy, more sophisticated techniques such as whole-body low-dose computed tomography (WBLDCT), whole-body magnetic resonance imaging, and 18F-fluorodeoxyglucose–positron emission tomography/computed tomography (PET/CT). In this review, some of the advantages, indications of use, and applications of the three techniques in managing patients with MM will be discussed. The European Myeloma Network guidelines have recommended WBLDCT as the imaging modality of choice for the initial assessment of MM-related lytic bone lesions. Magnetic resonance imaging is the gold-standard imaging modality for the detection of bone marrow involvement. One of the modern imaging methods and PET/CT can provide valuable prognostic data and is the preferred technique for assessing response to therapy.
Audit of Antibiotic Prescription in Suspected Neonatal Sepsis at an Indian Tertiary Care Hospital
Authors: S Geetha , Patil Deepa , M S Raghu Prasada , Aithal Sathisha
Published: April 2022

Neonatal sepsis is one of the most typical causes of neonatal morbidity and mortality in the developing world. Rational use of antibacterial is a priority to prevent the emergence of resistance and to reduce the burden of treatment failure. This study was a prospective, cross-sectional study that collected data from 148 records of clinically suspected neonatal sepsis in a tertiary care hospital between January to December 2017. The isolated organisms, prescribing patterns, approval status, and list of antibacterial in WHO Essential Medicines List/NLEM were analyzed and presented as percentages, mean and standard deviations using appropriate tables and graphs. Of the 430 antibacterials examined, single-drug formulations were most commonly prescribed [400(93.02%)]; 298(69.30%) and 427(99.30%) were approved by DCGI and USFDA, respectively; 275(63.95%) antibacterials were included in both WHO and NLEM. The most common isolated organisms were gram-negative (64.1%). The most common class of antibacterial prescribed was beta-lactams (ATC class: J01D and J01C) [251(58.37%)] followed by aminoglycosides (ATC class: J01G) [124(28.84%)] irrespective of culture and sensitivity and their generic names prescribed almost 50% (216) of drugs. Regarding outcome, 87.16% of cases recovered well. In conclusion, the rationality of antibacterial drug usage in suspected cases of neonatal sepsis was followed the majority of times, leading to better patient care and outcome.
Omphalitis and Concurrent Serious Bacterial Infection
Authors: Kaplan Ron L. , Cruz Andrea T. , Freedman Stephen B. , Smith Kathleen , Freeman Julia , Lane Roni D. , Michelson Kenneth A. , Marble Richard D. , Middelberg Leah K. , Bergmann Kelly R. , McAneney Constance , Noorbakhsh Kathleen A. , Pruitt Christopher , Shah Nipam , Badaki-Makun Oluwakemi , Schnadower David , Thompson Amy D. , Blackstone Mercedes M. , Abramo Thomas J. , Srivastava Geetanjali , Avva Usha , Samuels-Kalow Margaret , Morientes Oihane , Kannikeswaran Nirupama , Chaudhari Pradip P. , Strutt Jonathan , Vance Cheryl , Haines Elizabeth , Khanna Kajal , Gerard James , Bajaj Lalit
Published: April 2022

OBJECTIVE

Describe the clinical presentation, prevalence of concurrent serious bacterial infection (SBI), and outcomes among infants with omphalitis.

METHODS

Within the Pediatric Emergency Medicine Collaborative Research Committee, 28 sites reviewed records of infants ≤90 days of age with omphalitis seen in the emergency department from January 1, 2008, to December 31, 2017. Demographic, clinical, laboratory, treatment, and outcome data were summarized.

RESULTS

Among 566 infants (median age 16 days), 537 (95%) were well-appearing, 64 (11%) had fever at home or in the emergency department, and 143 (25%) had reported fussiness or poor feeding. Blood, urine, and cerebrospinal fluid cultures were collected in 472 (83%), 326 (58%), and 222 (39%) infants, respectively. Pathogens grew in 1.1% (95% confidence interval [CI], 0.3%–2.5%) of blood, 0.9% (95% CI, 0.2%–2.7%) of urine, and 0.9% (95% CI, 0.1%–3.2%) of cerebrospinal fluid cultures. Cultures from the site of infection were obtained in 320 (57%) infants, with 85% (95% CI, 80%–88%) growing a pathogen, most commonly methicillin-sensitive Staphylococcus aureus (62%), followed by methicillin-resistant Staphylococcus aureus (11%) and Escherichia coli (10%). Four hundred ninety-eight (88%) were hospitalized, 81 (16%) to an ICU. Twelve (2.1% [95% CI, 1.1%–3.7%]) had sepsis or shock, and 2 (0.4% [95% CI, 0.0%–1.3%]) had severe cellulitis or necrotizing soft tissue infection. There was 1 death. Serious complications occurred only in infants aged <28 days.

CONCLUSIONS

In this multicenter cohort, mild, localized disease was typical of omphalitis. SBI and adverse outcomes were uncommon. Depending on age, routine testing for SBI is likely unnecessary in most afebrile, well-appearing infants with omphalitis.
ВИКОРИСТАННЯ ПРИРОДНИХ СОРБЕНТІВ ДЛЯ ЗНИЖЕННЯ ВМІСТУ НІТРАТІВ У НАТУРАЛЬНИХ СОКАХ
Authors: П. Дерев'янко Наталія , П. Лашко Наталія , О. Чаусовський Григорій , С. Гостіщева Катерина
Published: April 2022

На сьогоднішній день актуальним залишається пошук оптимальних режимів зберігання і переробки свіжої рослинної продукції, які забезпечують зниження вмісту нітратів у продуктах харчування. В даній роботі вивчалась можливість використання природних сорбентів різної природи для зниження вмісту нітратів у свіжих овочевих соках. Шляхом фільтрування відділяли сік від сорбенту та аналізували фільтрат на вміст нітратів іонометричним методом на рН-метрі-іономірі «Експерт−001». Сорбційну активність сорбентів розраховували за показниками загального зв’язування (R, %) та коефіцієнта розподілення (D), будували ізотерми сорбції та визначали їх термодинамічні параметри. Об’єктами дослідження були: свіжі овочеві соки; в якості сорбентів використовували дисперсний мінерал бентоніт (БЕН), желатину (ЖЕЛ) та синтетичний флокулянт поліоксиетилен (ПОЕ). Визначення показника загального зв’язування (R, %) та коефіцієнта розподілення (D) нітратів із соків сорбентами показали, що використання сорбентів призводить до зменшення вмісту нітратів у середньому  в 1.2–1.9 разу. Максимaльну сорбційну активність при 3 годинному контакті з соком мав бентоніт (загальне зв'язування нітратів 16.1 %; коефіцієнт розподілення 19.0), мінімальну − синтетичний сорбент поліоксиетилен (загальне зв'язування 5.5 %; коефіцієнт розподілення 5.8). Встановлено, що експериментальне одержання ізотерм сорбції Лангмюра та розрахунок термодинамічних показників сорбції дозволяє оптимізувати вибір сорбентів для зменшення нітратного забруднення свіжих овочевих соків. Найбільш ефективними сорбентами для зниження вмісту нітратів у натуральних соках є бентоніт та желатина. Наведені умови  обробки натуральних соків сорбентами можна рекомендувати для  профілактики нітратного забруднення натуральних соків при їх виробництві.
CИНТЕЗ ФІЗИКО-ХІМІЧНІ ВЛАСТИВОСТІ, АНТИМІКРОБНА ТА АНТИРАДИКАЛЬНА АКТИВНІСТЬ ЗАМІЩЕНИХ БЕНЗО[4,5]ІМІДАЗО[1,2-с]ХІНАЗОЛІН-6(5H)-ОНІВ (-ТИОНІВ)
Authors: Кравцов Дмитро В. , Скорина Дмитро Ю. , Носуленко Інна С. , Ю. Воскобойнік Олексій , Коваленко Сергей И.
Published: April 2022

В представленій роботі описано методи синтезу ряду  6-S-заміщенних та 5-N-заміщенних бензо[4,5]імідазо[1,2-c]хіназолінів, а також результати дослідження їх антирадикальної та протимікробної активностей. Було показано, що цільові сполуки можуть бути одержані алкілуванням вихідних  калій бензо[4,5]імідазо[1,2-с]хіназолін-6-тіолату та бензо[4,5]імідазо[1,2-c]хіназолін-6(5H)-ону заміщеними 2-хлорацетамідами у відповідних умовах. Особливості спектрів ЯМР синтезованих сполук були встановлені та обговорені. Виявлено, що 2-(6-оксобензо[4,5]імідазо[1,2-c]хіназолін-5(6H)-іл)ацетаміди не проявляють антирадикальну дію, в той самий час як більшість 6-S-заміщених бензо[4,5]імідазо[1,2-с]хіназолінів є активними радикал-зв'язуючими агентами. Проведене дослідження антибактеріальної та протигрибкової дії синтезованих сполук дозволило встановити їх низьку або помірну дію проти таких штамів як  E. coli, S. Aureus та P. aeruginosa. Умовно-патогенний штам грибів C. albicans було ідентифіковано як найбільш чутливий до дії синтезованих сполук. Достовірної кореляції між природою замісника при атомі Нітрогену ацетамідного залишку та антимікробною активністю виявлено не було. Обґрунтовано перспективність дослідженого класу сполук як об’єктів досліджень спрямованих на пошук нових хіміотерапевтичних агентів.
МОДЕЛЮВАННЯ ТЕХНОЛОГІЧНОГО ПРОЦЕСУ ОКИСНЕННЯ ДІОКСИДУ СІРКИ З ВИКОРИСТАННЯМ ПРОГРАМИ CHEMCAD
Authors: Поджарский Михаил А. , Нестеров Анатолий М.
Published: April 2022

Очищення технологічних газів, насамперед продуктів нафтогазодобування, від сірковмісних сполук з перетворенням останніх на сірчану кислоту методом мокрого каталізу – один з затребуваних виробничих процесів. Мета цієї роботи – розробка способу розрахунку найбільш складного апарату даної технології – контактного апарату для окислення діоксиду сірки – з використанням програми CHEMCAD. Досліджена поведінка моделі процесу окислення SO2 у п'ятиполичному контактному апараті. Запропоновано спосіб розрахунку засобами CHEMCAD лінії оптимальних температур для окислення SO2 і показаний зроблений на його основі графічний розрахунок схеми процесу контактування. Результати цієї роботи можна використати для розробки методики розрахунку контактних апаратів для окислення SO2 в інтересах перспективного проектування.
Construção de sentidos em enunciados verbivocovisuais
Authors: Bernardino Rosângela Alves dos Santos , Brito Ivaneide Gonçalves de , Silva Eliene Carvalho da
Published: April 2022

Este artigo consiste em uma análise do gênero charge, a partir da concepção bakhtiniana de gênero discursivo e de dialogismo. O objetivo é verificar como ocorre a construção de sentidos na charge, com base no estudo dos seus componentes constitutivos e das relações dialógicas que esse gênero estabelece com outros enunciados no processo de interação discursiva, considerando, para tanto, a tridimensionalidade verbivocovisual da linguagem. O trabalho decorre de uma pesquisa bibliográfica, de natureza teórica e aplicada, apoiada na abordagem qualitativa. Teoricamente, pauta-se nos apontamentos do Círculo de Bakhtin (BAKHTIN, 2014, 2016; VOLÓCHINOV, 2018, MEDVIÉDEV, 2012) e de seus comentadores no país, como Fiorin (2018), Brait (2005, 2015, 2018,) Rojo e Barbosa (2015), Paula (2017), Paula e Serni (2017), Paula e Luciano (2020a) e Paula e Luciano (2020b). A análise sugere uma compreensão da charge como um gênero cuja verbivocovisualidade é bastante representativa e, por isso mesmo, expressiva de uma dialogicidade aberta a uma pluralidade de sentidos. Constata-se, por fim, que a perspectiva teórica do Círculo de Bakhtin é potencialmente importante para o estudo dos diferentes gêneros, inclusive os de natureza notadamente verbivocovisuais, dada a expressão dos mecanismos dialógicos, a ideologia constitutiva da linguagem e a carga axiológica das escolhas linguístico-discursivas.
Relações entre o sujeito kantiano e o bakhtiniano
Authors: Lima Sandra Mara Moraes
Published: April 2022

A proposta é apresentar parte do pensamento kantiano de modo a situar a influência desse filósofo na concepção de sujeito pressuposta pelo Círculo bakhtiniano, esclarecendo que, ao abordar o sujeito bakhtiniano, invariavelmente se resvala em alguns pressupostos filosóficos com os quais o Círculo dialoga e, nesse sentido, há um diálogo explícito com Kant, incorporando algumas posições e negando outras. No entanto, em última instância, há um grande distanciamento do sujeito bakhtiniano e o sujeito transcendental de Kant, uma vez que Bakhtin e o Círculo adotam uma perspectiva sociológica e também fenomenológica em que o sujeito é concebido como um fenômeno social.
Enunciazione non iterabile e interrelazione tra scrittura e immagini del mondo
Authors: Ponzio Luciano
Published: April 2022

Produrre e comprendere segni significa partecipare ai processi comunicativi. Il segnico è il campo dell’ambivalenza, della somiglianza, della deviazione, della creatività, in cui tutto si decide per relazioni e pratiche sociali (io-per-me, l’altro-per-me e io-per-l’altro, come dice Bachtin). Il testo artistico fornisce la possibilità di cogliere al meglio la struttura dialogica dell’enunciazione. Bachtin mostra come il senso del testo non dipenda dagli elementi ripetibili del sistema di segni con cui è composto (interpretanti di identificazione) ma nella sua stessa costituzione, e non solo nella sua manifestazione; esso è situato nei rapporti di rinvio, di differimento (interpretanti di comprensione rispondente) che danno luogo ad una catena di testi ad esso antecedenti e ad esso successivi. Nel dispiegarne la trama, pur rispettandone regole, forme e strutture, l’enunciazione letteraria del discorso indiretto libero è capace di trasgredirle in un fitto dialogo intertestuale e, diacronicamente, tra autori differenti.
Importancia de los recursos genéticos de la piña (Ananas comosus [L.] Merr. var. comosus) en Colombia
Authors: Aguilera-Arango Germán Andrés , Puentes-Díaz Carol Liliana , Morillo-Coronado Yacenia
Published: April 2022

Introducción. La piña (Ananas comosus [L.] Merr. var. comosus) representa uno de los sistemas productivos con mayor participación en el sector hortofrutícola en Colombia. Los recursos fitogenéticos son la base biológica de la seguridad alimentaria mundial y constituyen, además, la materia prima indispensable para el mejoramiento genético de los cultivos. En Colombia, la siembra de una variedad mejorada de piña supone un gran problema, debido a que desplaza el uso de cultivares nativos, los cuales poseen un arraigo cultural en cuanto a producción y consumo en cada sitio. Esta problemática podría resolverse mediante el conocimiento, caracterización, conservación y uso sostenible de los recursos genéticos, que son fuente de genes de interés y que podrían aprovecharse para iniciar un programa de mejoramiento para esta especie. Objetivo. Reconocer la importancia de los recursos genéticos como una estrategia para implementar un programa de mejoramiento genético de piña en Colombia. Desarrollo. Los recursos fitogenéticos constituyen la base de la seguridad alimentaria, de ahí que su conocimiento, conservación y uso sostenible son necesarios para garantizar la producción agrícola y satisfacer los crecientes desafíos ambientales y el cambio climático. Los recursos genéticos de la piña en Colombia podrían ser aprovechados, ya que se cuenta con diferentes variedades locales de piña, las cuales constituyen un acervo genético con genes y características de interés que podrían ser utilizados en programas de mejoramiento con miras a obtener nuevos cultivares para satisfacer las demandas actuales y abastecer mercados nacionales y de exportación. Conclusiones. Conocer la variabilidad genética en los recursos genéticos de la piña, permitiría una planeación de estrategias de conservación, su uso sostenibles en los sistemas agrícolas y en programas de fitomejoramiento del cultivo. Se requiere incorporar técnicas de biología molecular para acelerar los mejora genética de la piña.
Invisible Hosts: Performing the Nineteenth-Century Spirit Medium’s Autobiography, by Elizabeth Schleber Lowry.
Authors: Albrecht Jessica
Published: April 2022

Invisible Hosts: Performing the Nineteenth-Century Spirit Medium’s Autobiography, by Elizabeth Schleber Lowry. SUNY Press, 2017. 186pp., Hb $95.00, ISBN-13: 9781438465999; Pb. $32.95. ISBN-13: 9781438466002.
Latter-day Screens: Gender, Sexuality & Mediated Mormonism, by Brenda R. Weber.
Authors: Ashcraft W. Michael
Published: April 2022

Latter-day Screens: Gender, Sexuality & Mediated Mormonism, by Brenda R. Weber. Duke University Press, 2019. 384pp., Hb. $109.95, ISBN-13: 9781478004264; Pb. $29.95, ISBN-13: 9781478004868.
Introduction
Authors: Nichols Amanda
Published: April 2022

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Jack Hunter (ed.), Greening the Paranormal: Exploring the Ecology of Extraordinary Experience
Authors: Juengling Stephanie
Published: April 2022

Jack Hunter (ed.), Greening the Paranormal: Exploring the Ecology of Extraordinary Experience (United Kingdom: White Crow Books, 2019), vii + 311 pp., $19.99 (pbk), ISBN: 9781786771094.
Introduction
Authors: Taylor Bron
Published: April 2022

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Parts Behave Differently in Wholes
Authors: Schilbrack Kevin
Published: April 2022

Sophie Gibb, Robin Findlay Hendry, and Tom Lancaster (eds.), The Routledge Handbook of Emergence (New York: Routledge, 2019), 420pp., $245.00 (cloth), ISBN: 978-1138925083.
Stuart A. Kauffman, A World beyond Physics: The Emergence and Evolution of Life (Oxford: Oxford University Press, 2019), 151pp., $24.95 (cloth), ISBN: 978-0190871338.
Mariusz Tabaczek, Emergence: Towards a New Metaphysics and Philosophy of Science (Notre Dame: University of Notre Dame Press, 2019), 396pp., $75.00 (cloth), ISBN: 978-0268104979.