bluuebunny/crossref_metadata_2025 huggingface dataset:
Retinal imaging study diagnoses a case of COVID-19
Authors: Ruiz-Medrano Jorge , Ortiz-Egea José Manuel , Ruiz-Moreno José María
Published: September 2020

Background: Hyper-reflective lesions at the level of ganglion cell (GCL) and inner plexiform retinal layers (IPL) by Optical Coherence Tomography (OCT) and cotton wool spots in the examination of the eye fundus have recently been described as findings in patients with COVID-19 infection.Case report: We report a case of a 42-year-old male anesthetist who treated COVID patients during the previous five weeks and suddenly debuted with a temporal relative scotoma in his left eye (OS); three weeks before, he presented with ageusia for several days. Best corrected visual acuity was 20/20 for OS; no discromatopsy or afferent pupillary defect were present. Visual field was performed, with no significant findings associated to the focal loss of sensitivity referred by the patient. The anterior segment was unremarkable on slit lamp examination in both eyes. Fundus examination of the left eye showed no significant findings. A placoid, hyperreflective band at the level of GCL and IPL was visible in the temporal and nasal side of the fovea on OCT which spared the outer retina, at the time of diagnosis and at one month. A propharyngeal swab test for SARS-CoV-2 RNA, IgG and IgM ELISA determinations were performed. Real-time reverse-transcriptase polymerase chain reaction (RT‐PCR) was negative. ELISA testing and a third rapid antibody detection test performed 7 days after the onset of symptoms were positive.Conclusions: Ocular signs and symptoms in COVID cases are rarely reported, but may be underestimated, especially those that affect the retina and occur in asymptomatic or paucisymptomatic cases. We present the first case of diagnosis of COVID-19 based on retinal ophthalmic examination.
Stvaralaštvo kao technê
Authors: Rajković Marica
Published: September 2020

Filozofija 21. stoljeća dužna je preispitati fundamentalne pojmove na kojima je zasnovana kako bi se utvrdilo je li povijesni tijek utjecao na promjenu u njihovoj biti i utjecaju. Jedan od takvih pojmova je pojam stvaralaštva koji se od još od starogrčke epohe vezuje za poietičku filozofiju. Neophodno je postaviti pitanje o tome je li još uvijek opravdana podjela prema kojoj je stvaralaštvo sfera ποίησις ili se stvaranje sâmo u tolikoj mjeri promijenilo kroz povijesna kretanja da je potrebno iz temelja ponovno odrediti ne samo njegov pojam nego i sfere njegova utjecaja. Kroz proces takvog ispitivanja važno je ukazati na autore koji su (na različite načine) smatrali da upravo ono stvaralačko fundira pojam čovjeka, kao i na one autore koji su upozoravali na takvu mogućnost. Razlika između starogrčkog τέχνη i suvremene tehnike, razlika između čovjeka kao zoon politikon i zoon technikon te razlika u određenjima pojma stvaranja otvaraju bitno pitanje: je li problem stvaralaštva toliko temeljan da je zbog njega neophodno preispitati filozofiju jedne epohe u cjelini?
Spread Mapping of Covid-19 in Morocco Using Geospatial Approach
Authors: Layati Elhoucein , Ouigmane Abdellah , de Carvalho Alves Marcelo , Murugesan Bagyaraj , El Ghachi Mohamed
Published: September 2020

Most of the people infected in Morocco are triggered by the outbreak of COVID-19. The number of affected cases is currently rising day by day. As of July 16th, 2020, In Morocco, 15,165 cases were tested positive for COVID-19, including 239 deaths and 11,417 patients cured the highest number of Corona virus cases reported as Ministry of Health Department in Morocco. The COVID-19 virus threatens the health, economy, development and social life of individuals. The city needs to be conscious of the fight against this epidemic. GIS technology has played an important role in many aspects, including geospatial perception, geostatistical simulation and spatial knowledge enabling decision-making, mitigation and prediction including COVID-19. GIS has evolved reasonably rapidly and has a full technical route for data processing, modeling and map creation. However, in the battle against the popular endemic, the key challenge is to find ways of controlling conventional technological methods and to increase the quality and accuracy of the knowledge provided for social management. As a consequence, IDW and computational approaches are used to forecast potential cases in the region. Prediction of different parameters existing confirmed events, death and recovery of COVID-19. See reports have been used to take proactive measures in order to penetrate regions. The suggested method of understanding is effective within a certain context and would be a valuable tool for both governments and health authorities.
B-learning en la enseñanza del idioma inglés como segunda lengua: una revisión sistemática de la literatura
Authors: Calderón Rojas Benigno Miguel , Córdova Esparza Diana Margarita
Published: September 2020

Las tecnologías de la información y la comunicación brindan en la actualidad diversas herramientas que posibilitan diversificar las estrategias didácticas. En el presente artículo se muestra una revisión de la literatura sobre la modalidad blended learning como estrategia didáctica en la enseñanza del idioma inglés como segunda lengua en bachillerato y en nivel universitario. Se realizó una búsqueda de artículos en las bases de datos de Scielo y Redalyc empleando las palabras clave: blended learning, b-learning e inglés. Considerando los criterios de inclusión y exclusión, fueron seleccionados 8 artículos los cuales se distribuyeron en dos temáticas: 1) experiencias en el empleo de la modalidad b-learning en la enseñanza del inglés como segunda lengua y 2) percepción de los docentes y estudiantes sobre la modalidad b-learning en los procesos de enseñanza y aprendizaje del idioma inglés como segunda lengua. Los resultados muestran que el b-learning puede favorecer la comprensión de temas gramaticales y el desarrollo de competencias de comunicación en idioma inglés como segunda lengua.
Potential of Photobiomodulation to Induce Differentiation of Adipose- Derived Mesenchymal Stem Cells into Neural Cells
Authors: Van Rensburg Madeleen Jansen , Crous Anine , Abrahamse Heidi
Published: September 2020

Background:

Given the minimal capacity and sometimes the failure of the mammalian
nervous system to regenerate and repair itself after damage, strategies are required to help enhance
this regenerative process. Adipose-derived Mesenchymal Stem Cells (ADMSCs) are likely candidates
to assist in the recovery process due to their ability to differentiate into neural cells. Successful
implementation of this intervention in a clinical setting would increase the rate of recovery following
traumatic brain injury.

Review:

Various strategies have been attempted to differentiate ADMSCs into neural cells for clinical
use. Such methods have not been entirely successful in the development of functioning specialized
cells for subsequent practical use. Therefore, the implementations of this differentiation technique
in the clinical trial have not been effective. In this article, the potential of differentiating
ADMSCs into neural cells and the various methods employed, including biological induction,
chemical induction and photobiomodulation (PBM) will be discussed, where the combined use of
transducers and PBM for neural differentiation of ADMSCs is also deliberated.

Conclusion:

PBM shows promise as an avenue for effective ADMSCs differentiation into neural
cells and their proliferation. Applying PBM with optimized biological factors and chemical inducers
may prove to be an effective tool for clinical application.
ESTATUTO DOS POVOS CIGANOS NO PROJETO DE LEI DO SENADO N. 248/2015
Authors: Rothenburg Walter Claudius , Stroppa Tatiana
Published: September 2020

RESUMO: Este artigo faz uma análise crítica do Projeto de Lei 248/2015 do Senado Federal brasileiro, que propõe um Estatuto do Cigano, com regime jurídico específico para os direitos fundamentais dos povos ciganos, especialmente os relacionados à educação, à cultura, à saúde, ao acesso à terra, à moradia, ao trabalho e à promoção da igualdade. Para cumprir o seu objeto, o estudo, de natureza bibliográfica e documental, discute a relação estabelecida entre a reivindicação por reconhecimento e igualdade a partir de normas jurídicas específicas como mecanismo de visibilização das vulnerabilidades de os grupos que compõem os povos ciganos. A conclusão reconhece que o Projeto de Lei 248/2015 do Senado Federal (“Estatuto do Cigano”) oferece bons dispositivos para assegurar o acesso de direitos fundamentais pelos povos ciganos no Brasil, mas que o seu êxito exige a efetiva participação das diversas comunidades ciganas, tanto na discussão do Projeto de Estatuto tal como proposto, como no próprio sentido de um regime jurídico específico aos povos ciganos no Brasil.
A BI-LEVEL ALGORITHM PROPOSAL FOR THE INITIAL PLANNING OF FEEDER BUS ROUTES
Authors: ABDULRAHMAN Hassan Shuaibu , ÖZUYSAL Mustafa
Published: September 2020

A sustainable urban transportation system uses different classes of transportation modes whose services should be well integrated. The Feeder Bus Route Network Problem (FBRNDP) is an important part of this integration. FBRNDP primarily deals with the provision of access to an existing mainline movement through feeder transit system usually to expand it’s the service coverage. The multiple traveling salesman problem (MTSP) has similar properties with FBRNDP, thus, making the formulation of MTSP to be adoptable for feeder bus routes. In this study, a bi-level heuristic algorithm is developed to solve this problem by clustering demand nodes around nearest destination and using genetic algorithm (GA) based on fixed start MTSP to optimize the shortest distance the salesmen will have to travel to cover the service area. The algorithm compares well to the results of a case study found in literature and shows a promising way of designing feeder bus routes strictly based on the shortest distance and variation of the number of routes required. The proposed method can be useful in the initial planning of an integrated transit system and it may serve as a seed solution in a multi-objective optimization.
Pengaruh Metode Storytelling Terhadap Penanaman Karakter Nasionalisme Pada Siswa SD
Authors: Rusiyono Ruwet , Apriani An-Nisa
Published: September 2020

This research is motivated by a phenomenon that exists in the world of education today, namely the lower values of national character inherent in students. This is because teachers still rarely insert nationalistic values in learning activities. For that we need the right way to incorporate the values of nationalism character in learning using interesting learning methods so as to create student enthusiasm for learning. This study aims to determine the effect of storytelling methods on the cultivation of nationalism in elementary school students. This research uses a quantitative approach with an experimental method. The research subjects were grade V students of Ngebel Elementary School, Kasihan, Bantul. Data collection techniques used were interviews, observation and documentation. Based on the results of pre-test and post-test data processing, the t-test calculation through the SPSS program with the results of the inculcation of nationalism in children carried out before and after the treatment is a t-count of -11,393 with a Sig level, (2 tailed = 0,000 so the t table value of -2, 214 at the level of Significance (a = 0.05), because t-count ³ t table. Based on these results can be concluded that the storytelling method influences the planting of the character of nationalism in children.

Keywords: storytelling, planting characters, nationalism
Implementation and Evaluation of a Text Message–Based Addiction Counseling Program (Text4Hope-Addiction Support): Protocol for a Questionnaire Study
Authors: Agyapong Vincent Israel Opoku , Hrabok Marianne , Vuong Wesley , Gusnowski April , Shalaby Reham , Surood Shireen , Greenshaw Andrew J , Aulakh Avininder , Abba-Aji Adam , Singh Mohit
Published: September 2020

Background

With the emergence of the COVID-19 pandemic, providing counseling to people with drug or alcohol addiction while maintaining physical distance has been challenging. This protocol describes the use of text messaging (as used in the Text4Hope-Addiction Support program) as a convenient, evidence-based, cost-effective, and accessible population-level mental health intervention with high user satisfaction proven in prior research.

Objective

The project goal is to implement a program of daily supportive text messaging (Text4Hope-Addiction Support) to reduce drug or alcohol cravings as well as anxiety and depression, typically associated with alcohol and substance use disorders. The aim of this study is to evaluate the prevalence of cravings, anxiety, and depressive symptoms; demographic correlates of the same; and the outcomes of the Text4Hope-Addiction Support intervention in mitigating cravings, anxiety, and depressive symptoms.

Methods

Self-administered, anonymous, online questionnaires will be used to assess cravings for the primary substance of addiction (Brief Substance Craving Scale), anxiety (Generalized Anxiety Disorder-7), and depressive symptoms (Patient Health Questionnaire-9). Data will be collected at baseline (onset of receiving text messages), program midpoint (6 weeks), and program end (12 weeks).

Results

As of October 2020, data collection is in progress; and it is expected to be completed by fall 2021. Data analysis will include parametric and nonparametric techniques, focusing on primary outcomes (ie, cravings, anxiety, and depressive symptoms) and metrics of use, including the number of subscribers and user satisfaction.

Conclusions

This Text4Hope-Addiction Support project will provide key information regarding the prevalence rates of cravings, anxiety, and depressive symptoms among persons with alcohol and substance use disorders; demographic correlates of cravings, anxiety, and depression; and outcome data related to this scalable population-level intervention. Information from this study will be valuable for addiction care practitioners; it will inform the policy and decision making regarding population-level addiction treatment and support during emergencies.

International Registered Report Identifier (IRRID)

DERR1-10.2196/22047
The US Public’s Perception of the Threat of COVID-19 During the Rapid Spread of the COVID-19 Outbreak: Cross-Sectional Survey Study (Preprint)
Authors: Xiu Xiaolei , Wang Anran , Qian Qing , Wu Sizhu
Published: September 2020

BACKGROUND

The rapid spread of the COVID-19 pandemic in the United States has made people uncertain about their perceptions of the threat of COVID-19 and COVID-19 response measures. To mount an effective response to this epidemic, it is necessary to understand the public's perceptions, behaviors, and attitudes.

OBJECTIVE

We aimed to test the hypothesis that people’s perceptions of the threat of COVID-19 influence their attitudes and behaviors.

METHODS

This study used an open dataset of web-based questionnaires about COVID-19. The questionnaires were provided by Nexoid United Kingdom. We selected the results of a questionnaire on COVID-19–related behaviors, attitudes, and perceptions among the US public. The questionnaire was conducted from March 29 to April 20, 2020. A total of 24,547 people who lived in the United States took part in the survey.

RESULTS

In this study, the average self-assessed probability of contracting COVID-19 was 33.2%, and 49.9% (12,244/24,547) of the respondents thought that their chances of contracting COVID-19 were less than 30%. The self-assessed probability of contracting COVID-19 among women was 1.35 times that of males. A 5% increase in perceived infection risk was significantly associated with being 1.02 times (OR 1.02, 95% CI 1.02-1.02; P<.001) more likely to report having close contact with >10 people, and being 1.01 times (OR 1.01, 95% CI 1.01-1.01; P<.001) more likely to report that cohabitants disagreed with taking steps to reduce the risk of contracting COVID-19. However, there was no significant association between participants who lived with more than 5 cohabitants or less than 5 cohabitants (P=.85). Generally, participants who lived in states with 1001-10,000 COVID-19 cases, were aged 20-40 years, were obese, smoked, drank alcohol, never used drugs, and had no underlying medical conditions were more likely to be in close contact with >10 people. Most participants (21,017/24,547, 85.6%) agreed with washing their hands and maintaining social distancing, but only 20.2% (4958/24,547) of participants often wore masks. Additionally, male participants and participants aged <20 years typically disagreed with washing their hands, maintaining social distancing, and wearing masks.

CONCLUSIONS

This survey is the first attempt to describe the determinants of the US public’s perception of the threat of COVID-19 on a large scale. The self-assessed probability of contracting COVID-19 differed significantly based on the respondents’ genders, states of residence, ages, body mass indices, smoking habits, alcohol consumption habits, drug use habits, underlying medical conditions, environments, and behaviors. These findings can be used as references by public health policy makers and health care workers who want to identify populations that need to be educated on COVID-19 prevention and health.
Presence of Urinary Exosomes for Liquid Biopsy of Clear Cell Renal Cell Carcinoma: Protocol for a Pilot Feasibility Study (Preprint)
Authors: Li Guorong , Mallouk Nora , Flandrin Pascale , Garcin Arnauld , Lambert Claude , Berremila Sid Ali , Habchi Hocine , Mottet Nicolas
Published: September 2020

BACKGROUND

Approximately 70%-80% of kidney cancers are clear cell renal cell carcinomas (CCRCCs). Patient management is based on imaging (abdominal ultrasound and computerized tomography), surgical excision of the tumor, and pathological analysis. A tissue biopsy is therefore necessary to confirm the diagnosis and avoid unnecessary nephrectomy. For metastatic cancers, a tissue biopsy is essential for establishing the targeted therapy. This biopsy of tumor material is invasive and painful. Other techniques such as liquid biopsy would help reduce the need for tissue biopsy. The development of a simple biological test for diagnosis is essential. CA9 is a powerful marker for the diagnosis of CCRCC. Exosomes have become a major source of liquid biopsy because they carry tumor proteins, RNA, and lipids. Urine is the most convenient biological liquid for exosome sampling.

OBJECTIVE

The aim of this study (PEP-C study) is mainly to determine whether it is possible to detect urinary exosomal CA9 for the molecular diagnosis of CCRCC.

METHODS

This study will include 60 patients with CCRCC and 40 noncancer patients. Exosomes will be isolated from urine samples and exosomal CA9 will be detected by transmission electron microscopy, flow cytometry, and reverse transcription-quantitative polymerase chain reaction.

RESULTS

This study is currently underway with funding support from the CHU Saint-Etienne of France.

CONCLUSIONS

We expect to demonstrate that urinary tumor exosomes could be a novel liquid biopsy to diagnose CCRCC and to guide clinicians in treatment decision-making.

CLINICALTRIAL

ClinicalTrials.gov NCT04053855; https://clinicaltrials.gov/ct2/show/NCT04053855

INTERNATIONAL REGISTERED REPORT

DERR1-10.2196/24423
The Smart Pill Bottle: Introducing a Pill Management system based on Touchpoint Technology (Preprint)
Authors: Kataria Garvit , Patel Darsh , Dhyani Kshitij , Srinivasan Kathiravan , Malwade Shwetambara , Syed-Abdul Shabbir
Published: September 2020

BACKGROUND

Older adults tend to suffer from multi-morbidity, requiring complex treatment methodologies demanding poly-pharmacy. The increasing medication usage can tend towards the mismanagement of prescriptions and irregular or faulty administration. Thus, there arises an urgent need for a proper pill management system for these prescribed medicines. The solutions offered by the current market seem to be sub-optimal; they either fail to be cost-effective or fail to provide much the required assistance.

OBJECTIVE

We propose a mobile, cost-effective, robust, and easy to use solution involving the extension to the human body-smartphones and pill bottles

METHODS

The technology utilizes a unique combination of touch-points on the smartphone screen to recognize the medication and give information regarding the proper usage and dosage. The building of the pill management system was conducted in two phases; first, the pill bottles were developed since these were to be detected and identified, followed by the mobile application, which did the whole pill management.

RESULTS

Our tool comprised of two components–(1) the conductive ink enabled pill bottle containing a unique combination of conductive inks and (2) the mobile application utilizing the touch-points generated by the conductive ink sticker to give information of the corresponding medicine. Whenever a pill bottle is placed on the mobile screen, the conductive ink imitates the finger touch effect creating a unique touch pattern which is detected on the mobile screen. It is analyzed by the mobile application, holding the database of the corresponding medicine assigned to that specific touch pattern, and the user is provided with the medicine and its dosage details.

CONCLUSIONS

Our smart pill bottle system presents a novel implementation of touchpoint technology. Further, being easy to use, affordable, and compatible with simple equipment, our system showed feasibility in implementation and usage.
Analysis of Minimal Channels Electroencephalography for Wearable BCI: Development and Usability Study (Preprint)
Authors: Suwannarat Arpa , Pan-Ngum Setha , Israsena Pasin
Published: September 2020

BACKGROUND

Electroencephalography (EEG) is a non-invasive Brain Computer Interface (BCI) technology that has shown potential in various healthcare applications such as epilepsy treatment, sleep disorder diagnosis, and stroke rehabilitation. Usually these applications require multi-channels EEG. However, multi-channel EEG headset setup process is time consuming. This may result in low patients’ acceptance despite BCI potential benefits.

OBJECTIVE

To investigate the number of appropriate electrodes, which could be crucial for successful applications of BCI in wearable devices.

METHODS

Motor Imagery (MI) classification system is used for our analysis. Different number of EEG channels was selected. EEG Multi-frequency features were extracted by Filter Bank (FB). Support Vector Machine (SVM) was used in classifying left and right hand opening/closing MI task.

RESULTS

The results showed that the group of nine electrodes gave high classification accuracy while requiring moderate set-up time, and hence is suggested as the minimal number of channels. Spherical spline interpolation (SSI) was also applied to investigate the feasibility of generating EEG signal from limited channels of EEG headset. The classification accuracies of the interpolated groups only, and the combined interpolated and collected group, were significantly lower than those of measured groups

CONCLUSIONS

For wearable device, one of the key factors that need to be concerned is wearability. The number of channels of EEG device adversely affects to set-up time. With FB feature and session dependent training, the investigation of number of channels provides the possibility to develop a successful BCI application using minimal channels EEG device. Interpolation technique which could approximate additional electrode data from nearby electrodes should be also explored.
Real-time High-Level Pain Quantification using a Smartphone and a Wrist-worn Electrodermal Activity Sensor (Preprint)
Authors: Kong Youngsun , Posada-Quintero Hugo , Chon Ki
Published: September 2020

BACKGROUND

The subjectiveness of pain leads to inaccurate pain management, which can exacerbate drug addiction and overdose. The consequence is tremendous cost to society and individuals as the opioid crisis grows. Given that pain is often experienced in patients’ homes, there is an urgent need for ambulatory devices that can quantify pain in real time.

OBJECTIVE

We developed a smartphone-based system for real-time objective pain measurement and assessment using a wrist-worn electrodermal activity (EDA) device.

METHODS

Our smartphone application collects EDA signals from a wrist-worn device and evaluates pain based on the computation of three pain-sensitive EDA indices: the time-varying index of EDA (TVSymp); modified TVSymp (MTVSymp), and the derivative of phasic EDA (dPhEDA). For testing of our computational algorithms that were embedded in a smartphone application, ten subjects underwent heat pain using a thermal grill, which delivered a level of pain that was calibrated for each subject to be 8 out of 10 on a visual analog scale (VAS). The thermal grill induces heat pain perception without tissue injury using the temperature difference between warm and cold water. All of the wearable-collected EDA signal processing was performed using a smartphone application. Furthermore, another group of fifteen subjects underwent pain stimulation using electrical pulses (EP), which elicited a VAS pain score level 7 out of 10. For EP data collection, EDA signals were collected using a non-wearable device but the same smartphone application was used to calculate the EDA-derived pain indices. We set 5-second segments before and after each pain stimulus to be painless and pain segments, respectively, and trained eight machine-learning classifiers to test the feasibility of our smartphone and EDA-based system to detect pain in real-time. Parameters of the classifiers were optimized using the grid search cross-validation technique. We trained and tested the classifiers on both datasets with leave-one-subject-out cross-validation approach to prevent over-fitting of the models.

RESULTS

We obtained up to 82.1% accuracy in detecting pain. We also trained using only one dataset at a time and tested with other datasets (and vice versa) and achieved up to 83.1% accuracy.

CONCLUSIONS

Our results show the potential of a smartphone application to provide near real-time objective pain detection. This approach can potentially enable pain quantification for both acute and chronic pain and it is especially suited for subjects with communication disorders as well as infants.
Carnaval y secularización: disputas en torno a los bailes de máscaras en la ciudad de México en 1831 y 1840
Authors: Sánchez Ulloa Cristóbal Alfonso
Published: September 2020

Por medio de las discusiones en el ámbito público que los bailes de máscaras de 1831 y 1840 originaron en la ciudad de México, este artículo se acerca a las transformaciones de la sociedad postindependentista. Se aborda el proceso de secularización, en articular las expresiones anticlericales y la paulatina irrupción de actividades profanas en un tiempo otrora de recogimiento, como era la Cuaresma. Se analiza la pugna entre la Iglesia y el Estado por influir en la sociedad, así como el interés de los gobernantes por legitimarse y tener presencia entre los pobladores. Finalmente, se aborda la transformación de las mascaradas en un espectáculo público, encerrado entre las paredes de un teatro, fácil de vigilar y redituable para  empresarios y autoridades, así como las opiniones que algunos letrados tuvieron sobre este proceso.
Distillation of maximally correlated bosonic matter from many-body quantum coherence
Authors: Volkoff Tyler J.
Published: September 2020

We construct quantum coherence resource theories in symmetrized Fock space (QCRTF), thereby providing an information-theoretic framework that connects analyses of quantum coherence in discrete-variable (DV) and continuous variable (CV) bosonic systems. Unlike traditional quantum coherence resource theories, QCRTF can be made independent of the single-particle basis and allow to quantify coherence within and between particle number sectors. For example, QCRTF can be formulated in such a way that neither Bose-Einstein condensates nor Heisenberg-Weyl coherent states are considered as quantum many-body coherence resources, whereas spin-squeezed and quadrature squeezed states are. The QCRTF framework is utilized to calculate the optimal asymptotic distillation rate of maximally correlated bosonic states both for particle number conserving resource states and resource states of indefinite particle number. In particular, we show how to generate a uniform superposition of maximally correlated bosonic states from a state of maximal bosonic coherence with asymptotically unit efficiency using only free operations in the QCRTF.
The Alternative Histories of Muslim Asia’s Urban Centres: De-Cosmopolitanisation and Beyond
Authors: Marsden Magnus
Published: September 2020

Historians increasingly analyse the cultural diversity of life in the Afro-Eurasian arena of ‘Muslim dominion’ in terms of its cosmopolitanism. By contrast, critical scholarship has recently brought attention to declining levels of religious diversity in present-day Muslim Asia – a term that refers to Asia’s Muslimmajority population zones. This article, by contrast, explores the ongoing legacy of urban cosmopolitanism in Muslim Asia. It focuses on a small but lively community of Jews from the Afghan cities of Kabul and Herat, and does so in comparison to a considerably larger community of Jews from formerly Soviet Central Asian Republics, especially Uzbekistan and Tajikistan, who identify themselves as ‘Bukharan’. Investigating ethnographic material relating to Afghan and Bukharan Jewish communities based in New York, the article sheds light on an alternative and ongoing history of cosmopolitanism in Muslim Asia. More broadly, it also argues that field research amongst migrant and diasporic communities from Muslim Asia living in the West can offer important insights into the afterlives of the region’s historic cities.
Os deslocamentos da criança no interior do reformulável e sua constituição subjetiva na aquisição da escrita: um olhar pecheutiano
Authors: Oliveira Giovane Fernandes
Published: September 2020

Este artigo analisa sequências discursivas de aquisição da escrita à luz da análise do discurso peucheutiana, bem como das reflexões de Indursky (2016) sobre as determinações discursivas da escrita e de Zapelini (2016) sobre a escrita de entremeio. O corpus analítico envolve duas SDs de um menino acompanhado longitudinalmente em sua relação inicial com a escrita. Conclui-se que a aquisição da escrita não se reduz a um processo cognitivo de aprendizagem ou a um processo sociointeracional de uso da língua: trata-se de um processo de transformação simbólica sem início nem fim, pois o sujeito muda sua relação com o escrito a cada nova diferente formação discursiva em que se insere e mesmo no interior de uma única FD.
Decolonialidade e inglês como língua franca: diálogos com professores brasileiros
Authors: Albuquerque Mariana Lyra Varela de , Haus Camila
Published: September 2020

As relações interculturais que caracterizam nossa realidade globalizada são permeadas pela colonialidade. No contexto do ensino de inglês, enxergamos o deslocamento de um paradigma de inglês como língua estrangeira para perspectivas mais críticas (como de inglês como língua franca (ILF) e translinguagem) como possível caminho para a decolonialidade. Assim, neste trabalho, entrevistamos professores a respeito de seus planejamentos, recursos e crenças sobre os investimentos dos alunos no aprendizado. Ao voltarmo-nos para esses discursos, buscamos refletir sobre a possível presença de elementos que indiquem uma perspectiva de ILF e translinguagem, considerando, por um lado, uma desobediência epistêmica (MIGNOLO, 2008) e, por outro, uma perpetuação do imperialismo linguístico característico da colonialidade. Por fim, destacamos a importância de uma formação inicial/continuada de professores que contribua para a autorreflexão e o questionamento.
INFLUENCE OF CREATIVE PROBLEM SOLVING TO STUDY RESULT SOCIAL SCIENCES STUDY AS REVIEWED FROM THE MULTICULTURAL ATTITUDE OF STUDENTS CLASS V ELEMENTARY SOUTH KUTA
Authors: Wapa Andi
Published: September 2020

This research aims to describe the effect of Creative Problem Solving learning implementation on social science learning results reviewed from multicultural attitudes. The research design uses Posttest only control group design. The primary school student research population is 401 students. The sample consisted of 120 students divided into two experiment classes and two control classes with random sampling group techniques. Data analysis is done with ANAVA. The results showed: a) the results of Social Science study between students who participated in Creative Problem Solving learning and students who participated in conventional learning with a score of  22,284 >   (3,93), b) influence between the application of creative problem solving learning and multicultural attitude to social science learning results with a score of  66,428 <   (3.97), c) social science learning results between students who participate in creative problem solving and students who follow conventional learning, in students who have a high multicultural attitude with a score of  31,396 <   (4,11), d) the results of social science studies between students who follow creative problem solving learning and students who follow conventional learning, students with a low multicultural attitude with a score of  9,928 <   (4.11).
Antioxidant Activity Tests of Extract of Principle Crafts (Phaleria macrocarpa)
Authors: Putri Tri , Diah Anang W. M. , Afadil Afadil
Published: September 2020

Phaleria macrocarpa contains secondary metabolite compounds such as alkaloids, terpenoids, saponins, polyphenols, tannins, sterols, and coumarins. Those metabolites are antioxidants and can be efficacious in the healing of various degenerative diseases such as cervical cancer and diabetes. This plant is widely grown in Tindaki Village, Parigi Mautong, Central Sulawesi. The aim of this study was to determine the antioxidant power of those phaleria macrocarpa fruit extract. This study was conducted by using maceration extraction technique with ethanol as solvent, and compound 2,2-difenil-1-picrilhidrazil (DPPH) as source of free radical, and vitamin C as the positive control. The UV-Vis spectrophotometer was used to measure the absorbance of the extract. Various concentrations of the extract used were 5 ppm, 15 ppm, 25 ppm, and 35 ppm. The results showed that the IC50 value of the fruit extract was 28.242 ppm, while the IC50 value of vitamin C was 19.302 ppm. These IC50 values show that vitamin C was a stronger antioxidant activity than the fruit extract, but the fruit extract was still as a very strong natural antioxidant category.
Implementation of Blended Learning Based on MOODLE on Student’s Chemistry Learning Outcome at Class X in SMA Negeri 3 Poso
Authors: Mahardika Wayan A. K. , Tiwow Vanny M. A. , Suherman Suherman
Published: September 2020

The growth of technology has encouraged learning toward blended learning which combines e-learning-based learning with the conventional face-to-face learning system. The use of MOODLE software to created web-based virtual class and the benefits of social interaction, making blended learning to has a more flexible and efficient time with more varied learning media. This research aimed to determine the effect of the implementation of blended learning based on MOODLE on student chemistry learning outcomes at class X in SMA Negeri 3 Poso. The research was conducted by giving treatment to the experiment class 1 (n = 32) and repeating the same treatment to the experiment class 2 (n = 33). The average pretest value in experiment class 1 was 19.06 and in experiment class 2 was 20.30. While the average of posttest value in experiment class 1 was 76.50 and in experiment class 2 was 73.00. The test of hypotheses was conducted using the Wilcoxon Signed Rank Test with criteria is, if –Ztable ≤ Zcalculate ≤ +Ztable then H0 is accepted. The value of Zcalculate in experiment class 1 was -4.93 and in experiment class 2 was -5.01. Based on the data, it been concluded that there was an effect of the implementation of blended learning based on MOODLE on student’s chemistry learning outcomes at class X in SMA Negeri 3 Poso.
A profession in change: Chief financial officers’ characteristics and backgrounds in large German companies
Authors: Endrikat Jan , Hillmann Julia , Kieslich Max
Published: September 2020

Growing competition, increasing uncertainty, globalization, and deregulation made the nature of what companies do increasingly complex, and especially corporate accounting has become more and more important. This has put chief financial officers (CFOs) on the spot and into a key leading position. This paper commences by briefly reviewing extant empirical findings on CFO characteristics and their effects on firm processes and outcomes. Then, it investigates how the profession of the CFO has changed over time by analyzing changes in demographic characteristics and professional backgrounds of CFOs of German DAX companies over the past 20 years. The findings show changes in the CFO profession specifically with regard to CFO appointment age, professional experience (i.e., breadth of non-company and non-industry lifers, hiring of company and industry outsiders), and educational background (i.e., the role of educational level). Furthermore, the results for DAX CFOs are compared to data pertaining to the CFOs of midcap companies (i.e., MDAX). The respective analyses indicate a noticeable difference with regard to appointment age, professional experience (i.e., work experience, percentage of company-lifers, international experience), and educational level.
Optimization of injected radiotracer volume for flow rate measurement in closed conduits
Authors: Pavlovic Miroslav , Pantovic-Pavlovic Marijana , Bartl Pavel , Stevanovic Jasmina , Radak Bojan
Published: September 2020

In chemical processes it is essential that the flow in the process is accurately defined. Fluid velocity measurements are important for fluid flow quality performance in flow systems. This study focuses on determination of the volumetric flow rate and its standard (relative) deviation for calibration of conventional flow meters by using a radiotracer approach. The measurements for flow meter calibration were performed at a pilot-scale flow rig using Technetium-99 m (99mTc) as a radiotracer in the form of pertechnetate ion (99mTcO4-). The measured data were analyzed, and precision of the experimental setup was investigated under two different approaches ? IAEA?s RTD software and sum approximation of raw data. For the first time, the variation of standard deviation of calculated flow rate with the injection volume and activity of the radiotracer was determined. Plug flow with axial dispersion was used to simulate the measured RTD curves and investigate the flow dynamics of the flowing water. The results of the study have shown the possibility of in situ calibration of flow meters with a relative error lower than 1 %. They also revealed a slight dependency of the precision of output results on the injection volume as well as similar results for manual and specialized RTD software data processing.
Metformin-use is associated with slowed cognitive decline and reduced incident dementia in older adults with type 2 diabetes mellitus: the Sydney Memory and Ageing Study
Authors: Samaras Katherine , Makkar Steve , Crawford John D. , Kochan Nicole A. , Wen Wei , Draper Brian , Trollor Julian N. , Brodaty Henry , Sachdev Perminder S.
Published: September 2020

Objective: Type 2 diabetes mellitus (diabetes) is characterized by accelerated
cognitive decline and higher dementia risk. Controversy exists regarding the
impact of metformin which is associated with both increased and decreased
dementia rates. The objective of this study was to determine the association of
metformin-use with incident dementia and cognitive decline over 6 years in
diabetes, compared to those not receiving metformin and those without diabetes.

Research Design and Methods: Prospective
observational study of N=1037 non-demented community-dwelling older
participants aged 70-90 at baseline (the Sydney Memory and Ageing Study). Exclusion
criteria were dementia, major neurological or psychiatric disease or
progressive malignancy. Neuropsychological testing measured cognitive function every
two years; a battery of tests measured executive function, memory,
attention/speed, language and visuospatial function individually and to a
construct of global cognition. Incident dementia was ascertained by a
multidisciplinary panel. Total brain, hippocampal and parahippocampal volumes
were measured by magnetic resonance at baseline and 2 years (n=526). Data were
analyzed by linear mixed modeling, including the covariates of age, sex,
education, body mass index, heart disease, hypertension, stroke, smoking and
apolipoprotein Ee4 carriage.

Results: Of n=1037, 123 had
diabetes; 67 received metformin (DM+MF) and were demographically similar to
those not (DM-noMF) and participants without diabetes (no-DM). DM+MF had
significantly slower global cognition and executive function decline compared
to DM-noM. Incident dementia was significantly higher in DM-noMF compared to
DM+MF (OR 5.29, 95%CI 1.17-23.88, p=0.05).

Conclusions: Older people
with diabetes receiving metformin have slower cognitive decline and lower dementia
risk. Large randomized studies in people with and without diabetes will
determine whether these associations can be attributed to metformin.
HUBUNGAN ANTARA HARGA DIRI DAN MOTIVASI BERPRESTASI DENGAN PRESTASI BELAJAR FISIKA SISWA SMA
Authors: Sulastri N.K.R.W. , Rapi N.K. , Rachmawati D.O.
Published: September 2020

Penelitian ini bertujuan untuk menganalisis hubungan antara harga diri dan motivasi berprestasi dengan prestasi belajar fisika. Penelitian ini berjenis korelasional dengan metode ex-post facto. Populasi penelitian ini adalah seluruh siswa kelas X MIPA SMA Negeri di Kota Semarapura Tahun Pelajaran 2019/2020 yang berjumlah 466 orang. Sampel sebanyak 247 orang dipilih menggunakan teknik proportional random sampling. Data harga diri dan motivasi berprestasi siswa dikumpulkan dengan kuesioner. Data prestasi belajar fisika dikumpulkan dengan tes essay. Nilai reliabilitas kuesioner harga diri, motivasi berprestasi, dan tes prestasi belajar fisika berturut-turut 0,847; 0,875; dan 0,892. Teknik analisis yang digunakan untuk menguji hipotesis adalah analisis regresi linier sederhana dan analisis regresi ganda. Hasil penelitian adalah sebagai berikut: 1) terdapat hubungan positif yang signifikan antara harga diri dan prestasi belajar fisika dengan koefisien korelasi 0,605 dan SE 14,7%; 2) terdapat hubungan positif yang signifikan antara motivasi berprestasi dengan prestasi belajar fisika dengan koefisien korelasi 0,667 dan SE 32,4%; dan 3) terdapat hubungan positif yang signifikan antara harga diri dan motivasi berprestasi secara simultan dengan prestasi belajar fisika dengan koefisien korelasi 0,686 dan SE 47,1%.   Kata- kata kunci: harga diri, motivasi berprestasi, prestasi belajar fisika
Estudiando la importancia de las mujeres maestras del Paraguay desde la educación artística
Authors: Huerta Ricard
Published: September 2020

El proyecto Mujeres Maestras es un homenaje a las docentes. Es una investigación educativa y artística que tiene como objetivo abordar la identidad de las mujeres que se dedican a la enseñanza. Utilizamos una metodología plural que combina estudios de caso, narraciones personales y artography. Se trata de un trabajo cualitativo y artístico. El proyecto busca unir intereses entre la universidad, los centros educativos y los museos. En Mujeres Maestras del Paraguay se destacan las diferencias experimentadas por las docentes en las escuelas públicas y privadas, aunque los resultados artísticos de la propuesta han generado intersecciones entre ambas realidades. Particularidades como el uso del guaraní, el interés por el trabajo bien hecho, o la atracción por la naturaleza, están relacionadas íntimamente con estas maestras y con la tradición de las artesanas del país. Como parte de los resultados, se presenta una selección de piezas de arte que se realizaron con motivo del proyecto y que se unen a las narrativas de las propias historias de las maestras.
Venous hemodynamics, knowledge and miracles
Authors: Franceschi Claude
Published: September 2020

The occurrence of the Peregrine's ulcer is scientifically explainable but its miraculous healing in one night cannot be explained by the current scientific knowledge. The long history of fluid mechanics, anatomic and pathophysiologic discoveries led to the better knowledge of hemodynamics in pathophysiology. The last technologies provided strong means to the assessment of venous insufficiency, especially Duplex Ultrasound. Renewed hemodynamic concepts provide a better explanation of the pathophysiology of venous leg ulcers as well as reliable outcomes and less recurrences for varicose veins and ulcers.
Improving Students’ Higher Order Thinking Skills through Portfolio Assessment on Biology Curriculum and Textbook Analysis Course
Authors: Rahmi Yosi Laila , Alberida Heffi
Published: September 2020

Curriculum occupies a central position in education. Curriculum changes guided by the times and technology. The main problems of implementation of curriculum change is to change the mindset of teachers. Prospective teachers should have high order thinking skills to face the times and technology. One of efforts could be made a lecturer for conditioning of learning to be able to develop higher order thinking skills of students by using the right assessment. One assessment that play a role in increasing the skills of thinking is portfolio assessment. This study aims to describe the increase in high order thinking skills of students applying portfolio assessment. This research is a classroom action research conducted on students who take courses in curriculum and biology textbook in biology Faculty UNP in the July to December semester of 2017. The results showed an increase in high order thinking skills of students using portfolio assessment.
Efforts To Improve Student Learning Activities Using The Students Activity Sheet In Class IX-2 SMPN 32 Padang
Authors: Yelniwetis Doris , Qadriati Qadriati , Ramli Ramli , Miswarni Mitra , Yurnita Yurnita
Published: September 2020

Science is an important field of study to support science and technology. Many efforts have been made to improve the quality of education such as curriculum change, teacher competency improvement to stimulate student activities and the provision of learning resources. One that can be implemented to improve the quality of education through increased student activity is to multiply the source of learning such as LKS. This study aims to determine the increase in student learning activities using student activity sheets on IX-2 class IX-2 SMPN 32 Padang. Research includes classroom action research. From the data analysis, it can be concluded that there is an increase of student activity on the subject of Science class VII SMPN 32 Padang using Student Activity Sheet.