bluuebunny/crossref_metadata_2025 huggingface dataset:
Tower of Babel: transcendental linguistics in Friedrich von Hardenberg’s (Novalis) Fichte Studies
Authors: Knopf Alexander
Published: April 2021

This article provides a new interpretation of the linguistic aspects of Friedrich von Hardenberg’s Fichte Studies. It argues that Hardenberg was searching, among other things, for a transcendental language for philosophy. The possibility of such a language was discussed intensely among his contemporaries, such as Maimon, Niethammer, Reinhold, Weißhuhn, and Fichte. Its necessity, however, had become apparent with Kant’s Critique of Pure Reason. Readers had noticed a disturbing discrepancy between the objective knowledge of transcendental philosophy—which, according to Kant, was supposed to be generally communicable—and Kant’s actual failure to communicate it. Hardenberg’s original insight into the inseparable unity of sign and signified, anticipating modern linguistic theories, led him to the assumption of a lawful relationship between both. From his unsuccessful attempt to disclose these laws, he went on to discover language as an independent realm fundamentally opposed to nature. Precisely because language is a necessary illusion, only the ‘presenting I’ (das darstellende Ich) achieves its end, namely absolute freedom. Philosophy, therefore, is pure as long as it remains within the boundaries of language alone, that is a language which does not refer to anything outside itself.
Improving Quality of Long-Term Bond Price Prediction Using Artificial Neural Networks
Authors: Verner Robert , Tkáč Michal , Tkáč Michal
Published: April 2021

Purpose: The aim of this paper is to propose nonlinear autoregressive neural network which can improve quality of bond price forecasting.        
Methodology/Approach: Due to the complex nature of market information that influence bonds, artificial intelligence could be accurate, robust and fast choice of bond price prediction method.
Findings: Our results have reached a coefficient of determination higher than 95% in the training, validation and testing sets. Moreover, we proposed the nonlinear autoregressive network with external inputs using 50 year interest-rate swaps denominated in EUR and volatility index VIX as two external variables.
Research Limitation/Implication: Our sample of daily prices between 4th January 2016 and 13th January 2021 (totally 1,270 trading days) suggest that both Levenberg-Marquardt and Scaled conjugate gradient learning algorithms achieved excellent results.
Originality/Value of paper: Despite the fact that both learning algorithms achieved satisfying outcomes, implementation of an independent variable into the autoregressive neural network environment had no significant impact on prediction ability of the model.
Dual Axis Solar Tracker Using Astronomic Method Based Smart Relay
Authors: Prasetyo Yuli , Triyono Budi , Kusbandono Hendrik
Published: April 2021

Solar energy is a renewable energy. Solar energy can be utilized using solar panels. The use of solar panels mostly uses static or silent methods. The static method on solar panels cannot produce optimal electrical energy. This is because the intensity of sunlight received by solar panels is less than optimal. So that the resulting electrical energy is not optimal. Therefore we need a system that can control solar panels automatically. this system must also be able to follow the direction of movement of sunlight. This study discusses the dual axis solar tracker using smart relay-based astronomical methods. This study adjusts the angle of the solar panels to determine the movement of the sun. This study uses a smart relay to regulate the rotation of the DC motor (Linear Actuator) and the motor power window which functions as a driving force for solar panels. Astronomical method is used for tracking sunlight. This method is based on the position of the sun according to the lunar calendar. This method uses an angle sensor in the form of a variable resistor for elevation and a rotary encoder as an azimuth angle sensor. The results obtained from this study are the optimal electrical energy output from solar energy.
Investigating infant development through an interprofessional research collaboration: case report
Authors: Devine Nancy , Gee Bryan M , Aubuchon-Endsley Nicki L , Brumley Michele R , Ramsdell Heather L , Swann-Thomsen Hillary E
Published: April 2021

Background/aims

From a dynamic systems perspective of infant development, several systems (eg sensorimotor, perceptual, and reasoning, among others, may self-organise and change behavioural responses over time following experience. These changes in infant behaviour are often measured through the achievement of age-adjusted developmental milestones. However, the majority of research guiding the understanding of typical infant developmental trajectories rarely depicts collaborations across more than one or two disciplines. The purpose of this case report was to describe an interprofessional research collaboration among researchers and clinicians in clinical and experimental psychology, occupational therapy, speech-language pathology, and physical therapy to establish methods and procedures that describe different developmental domains in infancy for a single participant.

Methods

One infant who was typically developing was video and audio recorded during 60 minutes of free play at ages 8, 12, and 16 months. Four research labs scored the middle 20 minutes of recorded time for infant and caregiver utterances, touch and motor behaviours, play participation and performance, co-occupation, and caregiver sensitivity to infant affect. The combined data from the four labs captured and revealed a rich description of the infant's development from 8 to 16 months of age.

Results

The data for this single infant indicated that important developmental changes occurred leading to greater independence in communication, mobility and co-occupation, while reducing some of the requirements for attention from the caregiver.

Conclusions

The procedures used within research labs by principal investigators from four disciplines to describe development in a single infant between 8 and 16 months of age yielded a rich example of development, consistent with published milestones. Future studies with larger sample sizes using the interdisciplinary research methods applied in this case study may improve the understanding of, influences on, and relationships between, infant developmental trajectories.
Effects of including core strengthening exercise as part of a comprehensive rehabilitation programmes on people with lower-limb amputation: a pilot study
Authors: Mosteiro-Losada Sofía , Varela Silvia , García-García Oscar , Martínez-Lemos Iván , Ayán Carlos
Published: April 2021

Background/aims

Exercise can be a useful rehabilitation approach for people with lower-limb amputation. However, there is a lack of research in this regard. The aim of this study was to analyse functional mobility, walking speed, range of motion and quality of life changes experienced by people with lower-limb amputation after taking part in a comprehensive exercise programme that included core strengthening exercises.

Methods

This was a pilot study including six individuals who carried out a comprehensive exercise programme, which was performed once a week for 5 months. During the first 2 weeks, the participants attended 1-hour sessions that focused on the execution of diaphragmatic breathing and body scheme exercises. From the fourth week until the end of the intervention, the sessions were much longer, and included a warm-up phase, two circuit training workouts for core strength and balance, and a final stretching routine.

Results

Significant improvements were found in the participants' functional mobility (P=0.007) and walking speed (P=0.001). The exercise intervention did not have a significant impact on the participants' range of motion and quality of life.

Conclusions

In a group of people with lower-limb amputation, the performance of a comprehensive exercise programme that included core strengthening, was found to be beneficial for functional mobility and walking speed, although no significant effect was observed for range of motion and quality of life measures.
Lessons learnt from setting up a UK urgent dental care centre during the COVID-19 pandemic
Authors: Asuni Abisola , Carter Emily , Trainor Jenna , Daly Alex , Gillan Kelly , Mercer Lee , Greenwood Mark , Walton Graham
Published: April 2021

When the COVID-19 pandemic led to the closure of general dental practices throughout the UK on 23 March 2020, Newcastle Dental Hospital became a regional in-hours urgent dental care hub treating ‘hot’ (COVID-19 positive, self-isolating), ‘warm’ (shielding, vulnerable) and ‘cold’ (other) patients. It provided urgent dental care to over 3,000 patients in the first 6 weeks. With no other urgent dental care centres being operational until 15 April, the hospital was the sole care provider (both during normal working hours and out of hours) to a population of over 3 million for more than 3 weeks. Consideration of staffing requirements, logistics, staff wellbeing, personal protective equipment, referral pathways, clinic setup and management of urgent dental conditions during the COVID-19 pandemic are discussed along with the challenges faced.
Emotional styles in Russian maternity hospitals: juggling between khamstvo and smiling
Authors: Temkina Anna , Litvina Daria , Novkunskaya Anastasia
Published: April 2021

This article explores emotional styles of Russian maternity hospitals and their recent changes. We focus on two emotional practices that characterise different emotional styles: the Soviet-associated emotional practice of khamstvo (rudeness) and the post-Soviet neoliberal practice of smiling. Emotional styles in healthcare in Russia have been transformed under childbearing women’s consumer demands and new professional standards. However, maternity care in Russia has not been changed entirely into a neoliberal capitalist one. It is ruled by both bureaucratic paternalist (including direct state control) and consumerist logics simultaneously. The hybridisation of these logics has led to numerous problems in the coordination of institutional inconsistencies, which in turn cause emotional dissatisfaction of healthcare recipients. Doctors and midwives are expected to cope with these interactional and institutional challenges and consequences. They juggle emotional practices that refer to repertoires of different emotional styles, performing one or another according to their reading of the situation and type of patient (‘extra demanding and aggressive’, ‘miserable’, ‘ignorant and noncompliant’, ‘service-oriented’). We argue that the shift from one emotional style to another is nonlinear and leads to the appearance of a hybrid form that makes both emotional practices of khamstvo and smiling coexist in maternity care.
Three-dimensional measurement for spherical and nonspherical shapes of contact lenses
Authors: Saeki Kentaro , Huyan Decai , Sawada Mio , Nakamura Akira , Kubota Shin , Uno Kenji , Ohnuma Kazuhiko , Shiina Tatsuo
Published: April 2021

In recent years, with the development of precise lathe-cutting equipment, special shaped contact lenses (CL) have been crafted. However, while it is possible to manufacture such a lens, its shape evaluation has not been well-established. We conducted a basic optical experiment using special lenses to measure a spherical lens and nonspherical mold. As the measurement sample, a metal ball, special CL, and a toric-shaped mold were adopted. In order to accurately measure those real shapes, we proposed an algorithm in which the probe light is vertically incident to the sample surface within a numerical aperture of the optical probe. For this algorithm, we developed the specialized time-domain optical coherence tomography (TD-OCT), which was designed to conduct circular scanning while maintaining vertical incidence by driving a two-axis (vertical and horizontal) micro-electromechanical system mirror with a phase difference of 90°. The shape, thickness distribution, and curvature radii of both front and back surfaces of a CL were estimated with this OCT signal analysis and sphere fitting. The shape and curvature radius were evaluated by using the simulated data under the same experimental conditions. They were sufficiently accurate based on the resolution of this OCT. Also, a toric-shaped mold was evaluated by comparing the relationship between each coordinate and intensity of the interference signal. As a result, it is confirmed that the experimental result and the simulated matched well.
Photometric constraint for absolute phase unwrapping from single-frequency fringe patterns
Authors: Qi Zhaoshuai , Liu Xiaojun , Wang Zhao , Yang Jiaqi , Zhang Yanning
Published: April 2021

As a fundamental step in fringe projection profilometry, absolute phase unwrapping via single-frequency fringe patterns is still a challenging ill-posed problem, which attracts lots of interest in the research area. To solve the problem above, additional constraints were constructed, such as spatial smoothness constraint (SSC) in spatial phase unwrapping algorithm and viewpoint consistency constraint (VCC) in multi-view systems (e.g., stereo and light-field cameras). However, there still exists phase ambiguity in the unwrapping result based on SSC. Moreover, VCC-based methods rely on additional cameras or light-field cameras, which makes the system complicated and expensive. In this paper, we propose to construct a novel constraint directly from photometric information in captured image intensity, which has never been fully exploited in phase unwrapping. The proposed constraint, named photometric constraint (PC), provides a prospective constraint for absolute phase unwrapping from single-frequency fringe patterns without any additional cameras. Extensive experiments have been conducted for the validation of the proposed method, which achieved comparable performance with the state-of-the-art method, given a traditional camera-projector setup and single high-frequency fringe patterns.
Doppler optical frequency domain reflectometry for remote fiber sensing
Authors: Koeppel Max , Sharma Abhinav , Podschus Jasper , Sundaramahalingam Sanju , Joly Nicolas Y. , Xie Shangran , St. J. Russell Philip , Schmauss Bernhard
Published: April 2021

Coherent optical frequency domain reflectometry has been widely used to locate static reflectors with high spatial resolution. Here, we present a new type of Doppler optical frequency domain reflectometry that offers simultaneous measurement of the position and speed of moving objects. The system is exploited to track optically levitated “flying” particles inside a hollow-core photonic crystal fiber. As an example, we demonstrate distributed temperature sensing with sub-mm-scale spatial resolution and a standard deviation of ∼10°C up to 200°C.
Realization of laser intensity over 1023  W/cm2
Authors: Yoon Jin Woo , Kim Yeong Gyu , Choi Il Woo , Sung Jae Hee , Lee Hwang Woon , Lee Seong Ku , Nam Chang Hee
Published: April 2021

High-intensity lasers are critical for the exploration of strong field quantum electrodynamics. We report here a demonstration of laser intensity exceeding

1

0

23

W

/

c
m

2

with the CoReLS petawatt (PW) laser. After wavefront correction and tight focusing with a two-stage adaptive optical system and an f/1.1 (

f
=

300

m
m

) off-axis parabolic mirror, we obtained near diffraction-limited focusing with a spot size of 1.1 µm (FWHM). From the measurement of 80 consecutive laser shots at 0.1 Hz, we achieved a peak intensity of

(

1.1

±

0.2

)
×

1

0

23

W

/

c
m

2

, verifying the applicability of the ultrahigh intensity PW laser for ultrahigh intensity laser–matter interactions. From the statistical analysis of the PW laser shots, we identified that the intensity fluctuation originated from air turbulence in the laser beam path and beam pointing. Our achievement could accelerate the study of strong field quantum electrodynamics by enabling exploration of nonlinear Compton scattering and Breit–Wheeler pair production.
The inevitability of Covid-19 related distress among healthcare workers: Findings from a low caseload country under lockdown
Authors: Hawari Feras I. , Obeidat Nour A. , Dodin Yasmeen I. , Albtoosh Asma S. , Manasrah Rasha M. , Alaqeel Ibrahim O. , Mansour Asem H.
Published: April 2021

Objectives

To characterize psychological distress and factors associated with distress in healthcare practitioners working during a stringent lockdown in a country (Jordan) that had exhibited one of the lowest incidence rates of Covid-19 globally at the time of the survey.

Methods

A cross-sectional online survey sent to healthcare practitioners working in various hospitals and community pharmacies. Demographic, professional and psychological characteristics (distress using Kessler-6 questionnaire, anxiety, depression, burnout, sleep issues, exhaustion) were measured as were sources of fear. Descriptive and multivariable statistics were performed using level of distress as the outcome.

Results

We surveyed 937 practitioners (56.1% females). Approximately 68%, 14%, and 18% were nurses/technicians, physicians, and pharmacists (respectively). 32% suffered from high distress while 20% suffered from severe distress. Exhaustion, anxiety, depression, and sleep disturbances were reported (in past seven days) by approximately 34%, 34%, 19%, and 29% of subjects (respectively). Being older or male, a positive perception of communications with peers, and being satisfied at work, were significantly associated with lower distress. Conversely, suffering burnout; reporting sleep-related functional problems; exhaustion; being a pharmacist (relative to a physician); working in a cancer center; harboring fear about virus spreading; fear that the virus threatened life; fear of alienation from family/friends; and fear of workload increases, were significantly associated with higher distress.

Conclusion

Despite low caseloads, Jordanian practitioners still experienced high levels of distress. Identified demographic, professional and psychological factors influencing distress should inform interventions to improve medical professionals’ resilience and distress likelihood, regardless of the variable Covid-19 situation.
Cell competition between anaplastic thyroid cancer and normal thyroid follicular cells exerts reciprocal stress response defining tumor suppressive effects of normal epithelial tissue
Authors: Amrenova Aidana , Suzuki Keiji , Saenko Vladimir , Yamashita Shunichi , Mitsutake Norisato
Published: April 2021

The microenvironment of an early-stage tumor, in which a small number of cancer cells is surrounded by a normal counterpart milieu, plays a crucial role in determining the fate of initiated cells. Here, we examined cell competition between anaplastic thyroid cancer cells and normal thyroid follicular cells using co-culture method. Cancer cells were grown until they formed small clusters, to which normal cells were added to create high-density co-culture condition. We found that co-culture with normal cells significantly suppressed the growth of cancer cell clusters through the activation of Akt-Skp2 pathway. In turn, cancer cells triggered apoptosis in the neighboring normal cells through local activation of ERK1/2. A bi-directional cell competition provides a suppressive mechanism of anaplastic thyroid cancer progression. Since the competitive effect was negated by terminal growth arrest caused by radiation exposure to normal cells, modulation of reciprocal stress response in vivo could be an intrinsic mechanism associated with tumor initiation, propagation, and metastasis.
Energy-saving mechanism research on beam-pumping unit driven by hydraulics
Authors: Yang Hukun , Wang Jianping , Liu Hui
Published: April 2021

Aiming to solve the problems of long transmission chain, large movement inertia of components and high energy consumption of pumping units, this proposes a new pumping unit with direct balance and hydraulic drive. Through mathematical modeling and simulation analysis to compare the suspension dynamic characteristics and balance characteristics of the hydraulically driven pumping unit with the conventional one. It turns out that the suspension maximum speed drop 21.14%, the maximum acceleration drops 28.88% and the root mean square torque drops 92.9% on the suspension of the hydraulically driven pumping unit. The experimental results proves that the hydraulically driven pumping unit has significant energy saving efficiency, and achieves more than 30.9% of active power saving rate. Theoretical and practical research results show that hydraulically driven pumping unit is reliable and better energy saving, which provides a basis in theory and engineering practice in application.
Treatment outcome of tuberculosis at Dilla Referral Hospital, Gedeo Zone, southern Ethiopia: A retrospective study
Authors: Woldesemayat Endrias Markos , Azeze Zewtir
Published: April 2021

Background

Tuberculosis (TB) is one of the major public health problems in Ethiopia. Determining treatment outcome of TB cases could help to understand the effectiveness of TB control efforts. The objective of this study was to assess TB treatment outcome and associated factors and determine the risk factors of death among TB cases who were on Directly Observed Treatment Short course (DOTS).

Methodology

We analyzed a retrospective data for TB cases who were on DOTS at Dilla Referral Hospital from July 2011- June 2016. The study population was TB cases with known HIV status and whose treatment outcome was evaluated at the Hospital. Data were entered, cleaned and analyzed using statistical package SPSS for windows, version 20.

Result

Out of 899 registered TB cases, 731 included in this analysis. Of these cases, 424 (58.0%) were male and 334 (45.7%) were in the age group of below 25 years. Treatment success rate of TB was 675 (92.3%) and death rate was 18 (2.5%). Treatment outcome showed statistically significant variation by HIV status (P < 0.001). HIV status of the TB cases and pretreatment weight were associated with TB treatment outcome. HIV status of the TB cases was associated with death of the TB cases (Adjusted Odds Ratio (AOR) 5.0; CI 95%: 1.8–13.5).

Conclusion

TB treatment success rate found in this study was high. Patient’s weight and HIV status were associated with treatment outcome. Moreover, HIV status predicted death of TB cases. Cautious treatment follow-up and defaulter tracing mechanisms for TB cases with these risk factors were suggested.
Chest pain presentations to hospital during the COVID-19 lockdown: Lessons for public health media campaigns
Authors: Ferry Amy V. , Keanie Collette , Denvir Martin A. , Mills Nicholas L. , Strachan Fiona E.
Published: April 2021

Objective

Emergency Department (ED) attendances with chest pain reduced during the COVID-19 lockdown. We performed a service evaluation project in NHS Lothian to explore how and why the COVID-19 pandemic and public health advice had affected chest pain presentations and help-seeking behaviour at an individual patient level using a qualitative interview approach.

Methods

We carried out 28 semi-structured telephone interviews with a convenience sample of patients who presented with chest pain during lockdown and in patients with known coronary heart disease under the outpatient care of a cardiologist in April and May 2020. Interviews were audio recorded and voice files listened to while making detailed notes. Salient themes and issues were documented as verbatim extracts. Interviews were analysed thematically.

Results

Patient interviews revealed three main themes. 1) pandemic help-seeking behaviour; describing how participants made the decision to seek professional healthcare assessment. 2) COVID-19 exposure concerns; describing how the subthemes of perceived vulnerability, wishing to protect others and adding pressure to the health service shaped their decision making for an episode of acute chest pain. 3) hospital experience; describing the difference between the imagined and actual experience in hospital.

Conclusions

Qualitative interviews revealed how the pandemic shaped help-seeking practices, how patients interpreted their personal vulnerability to the virus, and described patient experience of attending hospital for assessment during this time. As patient numbers presenting to hospital appeared to mirror public health messaging, dynamic monitoring of this messaging should evaluate public response to healthcare campaigns to ensure the net impact on health, pandemic and non-pandemic related, is optimised.
Impact of Covid-19 pandemic on obstetric fistula repair program in Zimbabwe
Authors: Chimamise Chipo , Munjanja Stephen Peter , Machinga Mazvita , Shiripinda Iris
Published: April 2021

The advent of Covid-19 pandemic adversely affected many programs worldwide, public health, including programming for obstetric fistula were not spared. Obstetric fistula is an abnormal connection between the vagina and the bladder or the rectum resulting from obstetric causes, mainly prolonged obstructed labour. Zimbabwe has two obstetric fistula repair centers. Because the program uses specialist surgeons from outside the country, the repairs are organized in quarterly camps with a target to repair 90 women per quarter. This study aimed at assessing the impact of restrictions on movement and gathering of people brought about by the Cocid-19 pandemic and to characterize participants of the camp which was held in the midst of the Covid-19 pandemic at Mashoko Hospital. Specifically it looked at how Covid-19 pandemic affected programming for obstetric fistula repair and characterized participants of the fistula camp held in November to December 2020 at one of the repair centers. A review of the dataset and surgical log sheets for the camp and national obstetric fistula dataset was conducted. Variables of interest were extracted onto an excel spreadsheet and analyzed for frequencies and proportions. Data were presented in charts, tables and narratives. The study noted that Covid-19 pandemic negatively affected performance of fistula repairs greatly with only 25 women repaired in 2020 as compared to 313 in 2019. Ninety women were called to come for repairs but 52 did not manage to attend due to reasons related to the restriction of the Covid-19 pandemic lockdown. Two thirds of those women suffered from urinary incontinence while the other third had fecal incontinence. The successful repair rate was 92%. This study concluded that the pandemic greatly affected programming of fistula repair in the country and recommended the Ministry of Health and Child Care to institute measures to resume programming as soon as the situation allows.
Semi-supervised learning for an improved diagnosis of COVID-19 in CT images
Authors: Han Chang Hee , Kim Misuk , Kwak Jin Tae
Published: April 2021

Coronavirus disease 2019 (COVID-19) has been spread out all over the world. Although a real-time reverse-transcription polymerase chain reaction (RT-PCR) test has been used as a primary diagnostic tool for COVID-19, the utility of CT based diagnostic tools have been suggested to improve the diagnostic accuracy and reliability. Herein we propose a semi-supervised deep neural network for an improved detection of COVID-19. The proposed method utilizes CT images in a supervised and unsupervised manner to improve the accuracy and robustness of COVID-19 diagnosis. Both labeled and unlabeled CT images are employed. Labeled CT images are used for supervised leaning. Unlabeled CT images are utilized for unsupervised learning in a way that the feature representations are invariant to perturbations in CT images. To systematically evaluate the proposed method, two COVID-19 CT datasets and three public CT datasets with no COVID-19 CT images are employed. In distinguishing COVID-19 from non-COVID-19 CT images, the proposed method achieves an overall accuracy of 99.83%, sensitivity of 0.9286, specificity of 0.9832, and positive predictive value (PPV) of 0.9192. The results are consistent between the COVID-19 challenge dataset and the public CT datasets. For discriminating between COVID-19 and common pneumonia CT images, the proposed method obtains 97.32% accuracy, 0.9971 sensitivity, 0.9598 specificity, and 0.9326 PPV. Moreover, the comparative experiments with respect to supervised learning and training strategies demonstrate that the proposed method is able to improve the diagnostic accuracy and robustness without exhaustive labeling. The proposed semi-supervised method, exploiting both supervised and unsupervised learning, facilitates an accurate and reliable diagnosis for COVID-19, leading to an improved patient care and management.
Docência em ética: ensinar autonomia ou heteronomia em sala de aula, Piaget?
Authors: Correia Wilson Francisco
Published: April 2021

.
PROPUESTA DE DIMENSIONES E INDICADORES PARA EVALUAR EL DESEMPEÃ‘O DE LOS DOCENTES DE LOS INSTITUTOS SUPERIORES PEDAGÓGICOS EN CUBA (ISP)
Authors: Gonzáles Juana M. Remedios , Aquino Orlando Fernández , Padilha Sandra Y. Brito Padilha Brito , Puentes Roberto Valdés
Published: April 2021

El presente artículo consta de tres partes principales. La primera

se dedica a la fundamentación de la variable estudiada: Evaluación del desempeÃ±o profesional de los docentes, desde la perspectiva teórica del enfoque histórico-cultural, coherentemente integrada con los presupuestos dela calidad educativa. Ello ha permitido

construir el marco conceptual necesario para el desarrollo del

estudio. En la segunda parte se operacionaliza dicha variable en

tres dimensiones: I) modo de actuación en el cumplimiento de las funciones profesionales, II) características personales asociadas a la creatividad (motivación profesional, flexibilidad, originalidad, independencia cognoscitiva, responsabilidad laboral) y, III) la naturaleza de sus relaciones interpersonales (comunicación pedagógica). Almismo tiempo, se realiza un examen detallado de los indicadores que componen cada una de dichas dimensiones. En la tercera parte se expone una síntesis de los criterios evaluativos de la propuesta emitidos por importantes especialistas de la Educación Superior de Cuba. Los criterios de especialistas avalan la novedad, transferencia y valor metodológico del estudio.
Manipulatif Tantrum: Strategi untuk Mewujudkan Keinginan Anak
Authors: Yulia Resti , Suryana Dadan , Safrizal Safrizal
Published: April 2021

This study aims to describe the motives for tantrum behavior in child X in Jorong X, Solok Regency. This study uses a qualitative case study model. The case study model was chosen because this study focused on individual cases, namely the case of tantrum children. The location of this research was conducted in Jorong X in Solok Regency. The research informants were selected by purposive sampling technique with the consideration that the subject was chosen according to the research objectives. Based on this technique, five informants were obtained. The data collection procedure was carried out in three ways, namely open interviews, non-participant observation, and documentation. The data obtained from the collection techniques were analyzed by referring to the Miles and Huberman model which consists of four steps, namely data collection, coding, and sorting of data which are summarized in data reduction, data display, and concluding. Furthermore, guaranteeing the validity of the research data was carried out by using the triangulation technique, namely by combining three data collection methods. The results showed that tantrum behavior characterized by self-harm is a way for child X to make his wishes come true. The emergence of this behavior is supported by the response of parents who are more directing to a permissive pattern to always grant children's requests.
Performance of Propargyl Alcohol as Corrosion Inhibitor for Electroless Nickel-Phosphorus (NiP) Coating in Hydrochloric Acid Solution
Authors: Mainier Fernando B. , da Silva Thiago Theobaldo , de Araujo Fabio P. D.
Published: April 2021

The electroless nickel-phosphorus (NiP) coatings have been used with great success in oil production equipment and accessories, such as pipes, valves, pumps, adapters, rings, connectors and various types of special tools. In the acidification or acid stimulation of oil wells, to increase their productivity, a hydrochloric acid (HCl) solution is preferably injected from concentrations of 5 to 28%, aiming at the dissolution of a reservoir rock constituted of limestone and dolomite. In addition, the HCl solutions are also used to remove lime scale adhering to carbon steel pipes, where propargyl alcohol as a corrosion inhibitor, has shown good anticorrosion protection. The aim of this work is centred on the laboratory evaluation of NiP coating in 5% and 10 % HCl solution, and addition of propargyl alcohol as a corrosion inhibitor. The mass loss and polarisation curves proved to be very promising with propargyl alcohol as a corrosion inhibitor.
Synthesis and Optimization of AA 7175 – Zirconium Carbide (ZrC) Composites Machining Parameters
Authors: Sathish T. , Sabarirajan N.
Published: April 2021

The airline sector mostly preferable material as aluminium and its alloy due to light weight and better resistance combatant for environmental factors. In this work mainly focusing to fabricate the aluminium matrix composites and reducing the surface roughness value of the specimen in the machining process. Initially the AA7175 with reinforcement of zirconium carbide (ZrC) particles are synthesized by the route of stir casting process, the stirring deed improve the material strength. The Design of experiments is involved to optimize the machining (CNC vertical milling) parameters such as Spindle rotational speed (2000 rpm, 2400 rpm and 2800 rpm), Machine feed rate (1000 mm/min, 1400 mm/min and 1800 mm/min) and depth of cut (0.3mm, 0.6 mm and 0.9 mm). The L 27 orthogonal array model is conducted to optimize the factors with the help of Minitab numerical analysis. This approach finds the optimal factors and reduces the surface roughness value, the microstructure examine is carried out and its image is translated to analyze the 3D profilometry technique.
Student perceptions towards the usage of AR-supported STEMUP application in mobile courses development and its implementation into English learning
Authors: Lin Huang-Yao , Tsai Shu-Chiao
Published: April 2021

This study investigated the use of an augmented reality (AR) -supported application called STEMUP to develop mobile English courses on Android and iOS smartphones. It focused on vocabulary and listening and speaking skills, in an initial assessment of the effectiveness of implementing AR-based mobile English courses. The study was conducted with English major sophomores who took an elective course, Design and Practice of Mobile Learning, at a technology university in Taiwan. A preliminary curriculum was prepared for integrating STEMUP into English courses in which students would not only learn how to develop AR-based mobile English courses but also practise target English skills with two assigned English courses on STEMUP. The results from the student questionnaire indicated that the layout design of the student-generated AR-based mobile English courses complied with several of Mayer’s principles of multimedia learning and that the focus on learning with the mobile English courses met Chapelle’s seven suggested criteria for the development of multimedia computer-assisted language learning. The students of English as a foreign language responded that STEMUP was an easy application for developing AR-based mobile English courses and that learning with the assigned AR-based mobile English courses was interesting and motivational.
Concevoir des interventions adaptées pour éliminer les obstacles à la vaccination
Authors: Habersaat Katrine , MacDonald Noni E , Dubé Ève
Published: April 2021

En dépit des efforts visant à promouvoir la vaccination et à rendre les services de vaccination facilement accessibles, les taux de couverture vaccinale demeurent inférieurs aux taux cibles de nombreux vaccins dans plusieurs administrations. Le Bureau régional de l’Organisation mondiale de la santé (OMS) pour l’Europe a élaboré l’approche des Programmes de vaccination adaptés (programmes TIP) afin d’appuyer les efforts des différents pays pour parvenir à une utilisation des vaccins élevée et équitable. Dans la présente série d’articles du Centre canadien des ressources et d’échange sur les données probantes en vaccination (CANVax), nous présentons les principaux apprentissages tirés du cadre de la planification des programmes TIP afin d’aider les planificateurs, les décideurs et les fournisseurs de vaccins à déterminer les interventions qui mèneront à une utilisation accrue du vaccin. L’approche TIP est progressive et comprend les éléments suivants : 1) une identification claire de la cause fondamentale du faible taux de vaccination; 2) une intervention fondée sur la compréhension de cette cause; et 3) une évaluation du processus de mise en œuvre et de l’impact des interventions. Au niveau des fournisseurs et patients, les approches et les idées du cadre de planification de l’approche TIP pourraient éclairer la consultation sur la vaccination en soulignant l’importance de s’engager auprès des patients et des aidants, de les écouter et de répondre à leurs besoins.
Influence of relational resources on the development of relational operating skills
Authors: Zatta Fernando Nascimento , Tambosi Filho Elmo , Freitas Rodrigo Randow , Gonçalves Wellington , Oliveira Rodrigo Ribeiro , Segura Liliane Cristina , Formigoni Henrique , Schirrmeister Renata
Published: April 2021

The debate about relational resources and their influences has followed an internal focus on organizations, and in the literature this has been shown to have a high influence on the ways of the resource-based view. This article aims to analyze the development of operational competencies following the focus of the relational view from the interaction of relational resources shared in supply chains. The research was guided by the strategy of multiple case studies in the steel industry, automotive and industrial applications, pulp production, and engineering for the energy industry. The results of the analysis of the four cases show that deeper relationships in the form of partnerships enable a process of investing in specific assets, knowledge accumulation, learning exchange, and a combination of complementary strategic resources that develop relational operational competencies. And, these competencies that represent the company's ability to promote a skill set to use resources efficiently and to provide a barrier to imitation are further developed by the information and knowledge constructs.
Optimal policies for inventory model with shortages, time-varying holding and ordering costs in trapezoidal fuzzy environment
Authors: Kumar Pavan
Published: April 2021

This paper proposes the optimal policies for a fuzzy inventory model considering the holding cost and ordering cost as continuous functions of time. Shortages are allowed and partially backlogged. The demand rate is assumed in such to be linearly dependent on time during on-hand inventory, while during the shortage period, it remains constant. The inventory problem is formulated in crisp environment. Considering the demand rate, holding cost and ordering cost as trapezoidal fuzzy numbers, the proposed problem is transformed into fuzzy model. For this fuzzy model, the signed distance method of defuzzification is applied to determine the average total cost (ATC) in fuzzy environment. The objective is to optimize the ATC and the order quantity. One solved example is provided in order to show the applicability of the proposed model. The convexity of the cost function is verified with the help of 3D-graph.
A knowledge system proposal with weighted goal programming approach for multi-criteria dea model and an application
Authors: Polat Tugba , Kiris Safak
Published: April 2021

In today's competitive environment, enterprises should use their resources correctly; they should continuously improve themselves and work efficiently. It is important to evaluate the performances of the units under the same conditions in enterprises according to each other, to see the current situations and to determine appropriate improvements in necessary points. One of the commonly used approaches to performance evaluation is Data Envelopment Analysis. Many approaches have been developed for the Data Envelopment Analysis model, and Goal programming using in multi-objective decision making solutions approaches is one of them. Goal Programming gives decision-makers the opportunity to evaluate many objectives together in the decision-making process. In this study, classical Data Envelopment Analysis and weighted goal programming approach for multi-criteria data envelopment analysis model was applied in the evaluation process of the projects worked in an automotive supplier industry. A knowledge system has also been proposed in order to evaluate the effectiveness of the projects periodically and to include new projects or conditions into the evaluation.
Tradition and Innovation in Cataloguing Medieval Manuscripts
Authors: Da Rold Orietta
Published: April 2021

In this essay, I offer a brief history of manuscript cataloguing and some observations on the innovations this practice introduced especially in the digital form. This history reveals that as the cataloguing of medieval manuscripts developed over time, so did the research needs it served. What was often considered traditional cataloguing practices had to be mediated to accommodate new scholarly advance, posing interesting questions, for example, on what new technologies can bring to this discussion. In the digital age, in particular, how do digital catalogues interact with their analogue counterparts? What skills and training are required of scholars interacting with this new technology? To this end, I will consider the importance of the digital environment to enable a more flexible approach to cataloguing. I will also discuss new insights into digital projects, especially the experience accrued by the The Production and Use of English Manuscripts 1060 to 1220 Project, and then propose that in the future cataloguing should be adaptable and shareable, and make full use of the different approaches to manuscripts generated by collaboration between scholars and librarians or the work of postgraduate students and early career researchers.
Advancing Chemistry Worldwide
Authors: García-Martínez Javier
Published: April 2021

As we come out of this pandemic, we must find the most effective and useful ways so that IUPAC fulfills its mission of contributing to the worldwide understanding and application of the chemical sciences to the betterment of humankind. New technologies provide us with the tools to achieve this goal in a very effective manner. For example, our next General Assembly, which will be held completely online, represents an unprecedented opportunity to engage with our NAOs in a way that will allow for discussing our most pressing needs in a new and effective way. We are already working on different options to have working groups meeting at different times in virtual rooms, so everybody can participate, raise any issues, and discuss how we can create a more effective, responsive, and agile organization. I encourage all delegates to our General Assembly to make full use of this opportunity. Also, I would like to invite the wider IUPAC community, including our members, Associated Organizations, Company Associates, and also our sister Chemical Societies, to let us know any ideas, things we must improve, or any opportunities for collaboration, so we can include them in our discussions during our next General Assembly.
Why school-related content knowledge for pre-service chemistry teachers should include basic concepts in organic chemistry
Authors: Hermanns Jolanda , Ermler Nico
Published: April 2021

In this paper we describe and evaluate a study on the use of concepts in organic chemistry while solving tasks that are designed after the concept of school-related content knowledge (SRCK). The study was designed as a mixed methods study and conducted at a German university for the content of “organic chemistry”. As the results of this study show, the students rate the tasks and the use of anchoring concepts as for example “bonds” or “structure and function” as relevant for their future profession as a chemistry teacher. They therefore propose that concepts should be an integral part of their university studies as they find it lacking at the moment. Concepts can also be seen as an opportunity to build a bridge between school knowledge and university knowledge.
Assessment of the SWAT model in simulating watersheds in arid regions: Case study of the Yarmouk River Basin (Jordan)
Authors: Abu-Zreig Majed , Hani Lubna Bani
Published: April 2021

The Soil and Water Assessment Tool (SWAT) was used to simulate monthly runoff in the Yarmouk River Basin (YRB). The objectives were to assess the performance of this model in simulating the hydrological responses in arid watersheds then utilized to study the impact of YRB agricultural development project on transport of sediments in the YRB. Nine and three years of input data, namely from 2005 to 2013, were used to calibrate the model, whereas data from 2014 to 2015 were used for model validation. Time series plots as well as statistical measures, including the coefficient of determination (R
2) and the Nash–Sutcliffe coefficient of efficiency (NSE) that range between 0 to 1 and −∞ to 1, respectively, between observed and simulated monthly runoff values were used to verify the SWAT simulation capability for the YRB. The SWAT model satisfactorily predicted mean monthly runoff values in the calibration and validation periods, as indicated by R
2 = 0.95 and NSE = 0.96 and R
2 = 0.91 and NSE = 0.63, respectively. The study confirmed the positive impact of soil conservation measures implemented in the YRB development project and confirmed that contouring can reduce soil loss from 15 to 44% during the study period. This study showed that the SWAT model was capable of simulating hydrologic components in the drylands of Jordan.
Keep your friends close and your enemies closer – the case of monetary policy and financial imbalances
Authors: Iwanicz-Drozdowska Małgorzata , Kurowski Łukasz
Published: April 2021

The global financial crisis (GFC) has shown that monetary policy focused on a stable price level may negatively affect the stability of the financial system. Therefore, achieving price and financial stability using interest rates as the main tool is difficult. In this paper, we analyse how often monetary policy strengthened imbalances in the financial system in 20 countries from 1999Q1 to 2020Q2. To this end, we compare monetary policy stance with a novel financial imbalance index (FII). We find that monetary policy is material in aggravating financial imbalances mostly in Eurozone countries. We attribute this finding to the ECB’s “too loose, too long” monetary policy and to difficulties with applying single monetary policies in countries with different economic conditions and in different phases of credit and financial cycles. Our results point to a need for a proactive macroprudential policy in the environment of low interest rates.
The ethics of news media reporting on coronavirus humor
Authors: Miczo Nathan
Published: April 2021

This essay explores the news media’s portrayal of humor during the early phase of COVID-19-related lockdowns. Examining a collection of online news articles reveals the media tended to frame the issue as an ethical one (e.g., “is it okay to laugh at the coronavirus?”). After reviewing work on humor ethics, a qualitative content analysis of 20 news media articles is presented. Three issues from the news stories are identified, allowing comparison of the media’s claims against the ethical principles articulated. The essay concludes with a consideration of how news media’s coverage of humor fits within a broader pandemic narrative.