bluuebunny/crossref_metadata_2025 huggingface dataset:
Quinze anos no Brasil. A trajetória brasileira do violinista e compositor português Francisco de Sá Noronha (1838-1853).
Authors: Martins de Souza Silvia
Published: December 2021

Há, pelo menos, duas décadas, os estudos sobre a música e teatro oitocentistas no Brasil voltaram-se para abordagens que priorizam as trocas, diálogos, transferências e apropriações entre espaços, indivíduos, práticas e universos sociais e culturais como escala de observação. Este artigo alinha-se a esta vertente e tem como objetivo lançar alguma luz sobre os quinze anos passados no Brasil pelo compositor e violinista português Francisco de Sá Noronha, período bem pouco conhecido da sua vida. Nele defendemos a hipótese de que estes anos tiveram importância significativa para transformar Sá Noronha num mediador cultural nos dois lados do Atlântico.
Do Catimbó: percurso histórico e debate acadêmico de uma religião afro-brasileira.
Authors: Isaia Artur Cesar , ISAIA Marcos José
Published: December 2021

O presente artigo discute o percurso histórico de uma religião afro-brasileira constituída a partir das manifestações históricas denominadas de catimbó, com raízes coloniais e considerando o debate estabelecido em torno de sua definição. Neste sentido dois momentos importantes da discussão são as obras de Câmara Cascudo e Roger Bastide. O primeiro enfatizando as ligações do catimbó com a magia europeia e o segundo encaminhando para uma explicitação de suas transformações históricas. O catimbó é aqui enfocado no plano mais dinâmico de suas relações com o campo mediúnico e afro-brasileiro do nordeste, notadamente com a umbanda, candomblé e jurema.
Crenças e manifestações culturais afro-brasileiras na imprensa soteropolitana (1920-1940).
Authors: Couto Edilece Souza , Rosa Ribeiro André Luiz
Published: December 2021

O objetivo deste artigo é analisar as narrativas da imprensa sobre as crenças e manifestações culturais afro-brasileiras, em Salvador, entre 1920 e 1940. As principais fontes consultadas foram os periódicos Estado da Bahia, O Imparcial, A Tarde e Diário de Notícias. O recorte temporal situa a gradual mudança de percepção da imprensa sobre essas manifestações, quando as festas de terreiro se consolidam como símbolos identitários da cidade. As fontes possibilitaram a identificação das homogeneidades e descontinuidades na memória e os fatores de diferenciação nas correlações de força entre grupos separados por tênues fronteiras socioculturais e religiosas.
O terreiro e a universidade: estudo de caso etnopsicológico em um terreiro de Umbanda de Ribeirão Preto-SP, Brasil.
Authors: Scorsolini-Comin Fabio , Macedo Alice
Published: December 2021

O objetivo deste estudo é discutir os sentidos produzidos sobre as relações entre universidade e terreiro. Trata-se de um estudo de caso etnopsicológico realizado em um terreiro de umbanda de Ribeirão Preto-SP. Os principais sentidos destacam o terreiro como locus de conhecimento que, por vezes, coloca-se a serviço dos interesses dos pesquisadores. Recomenda-se que esses interesses sejam partilhados na comunidade, diminuindo as distâncias entre esses espaços. Conclui-se que os saberes produzidos no terreiro devem habitar a universidade não na condição de objeto, mas de fonte de conhecimentos úteis à construção de uma universidade mais inclusiva e que valorize a ancestralidade.
A constituição cultual religiosa afro-brasileira e sua relação com a religiosidade africana e o corpo.
Authors: Silveira Sérgio roberto
Published: December 2021

O artigo tem por objetivo analisar, reconstituir e explicar a constituição cultural religiosa afro-brasileira, a partir da herança recebida da religiosidade advinda da África Negra, baseada no princípio da manipulação da energia vital. Discute-se, principalmente, os pressupostos religiosos de etnias trazidas para o Brasil, os sudaneses e os bantos, na transmissão dos três focos de ativação energética: o Culto dos Orixás, o Culto dos Ancestrais e o Culto da Energia Vital. Por fim, foram analisados os significados e a importância atribuídos ao corpo como sujeito e espaço ritualístico, para a revitalização do princípio da força vital.
Mesa dos Orixás: experiências do ofertar e do receber na Umbanda.
Authors: Katrib Cairo Ibrahim
Published: December 2021

As questões religiosas têm sido palco de diversas reflexões atuais no campo da história e da historiografia. A Umbanda, enquanto religião plural, abre leques de possibilidades e diálogos no campo dos estudos das religiões e religiosidades, nos permitindo entender as suas práticas, a atuação dos sujeitos e o simbolismo presente em seus rituais, dentre outros aspectos. Para este artigo, propomos refletir sobre as experiências simbólicas que envolvem o ritual das oferendas, a fim de apresentar como a temática pode ser relida como tentativa de elucidar, no cotidiano, sentidos e significados representados e referendados como meios de conexão com a sagrado, à luz das vivências e experiências religiosas dos atores sociais envolvidos.
Exus, Pomba-giras e pretos velhos: o cemitério como espaço sagrado de pertencimento.
Authors: Andrade Junior Lourival
Published: December 2021

O cemitério também é morada de Exus, Pombas-giras e pretos velhos, entidades cultuadas pela Umbanda. As variações de ritos que formaram esta religião brasileira são percebidas também nos locais de atuação de seu panteão de espíritos. Túmulos dedicados para algumas destas entidades, pontos cantados e riscados que dão conta de seus poderes e características e imagens que compõem as cangiras nos terreiros, mostram a necrópole como um lugar dinâmico que convive com as mais diversas sensibilidades do sagrado. Vivos, mortos e espíritos compartilham experiências no plano terreno e no sobrenatural. O cemitério também pertence a Umbanda e sua cosmogonia.
Gender Differences in Coronary Profiles of Chronic Coronary Syndrome Patients
Authors: AlRashed Maraam , Rajan Rajesh , Al-Jarallah Mohammed , Dashti Raja , Hussain Salman , Al Saber Ahmad , Brady Peter A , Al Zakwani Ibrahim , El Khouly Ibrahim
Published: December 2021

Background:

Chronic coronary syndrome (CCS) is a recently defined entity that necessitates evaluating individual clinical risk factors in this cohort.

Objective:

The objective of the present study was to evaluate patients with CCS and examine their coronary profiles in order to delineate differences between genders.

Methods:

A cross-sectional analysis was conducted on 51 patients who met the criteria of CCS and have undergone both coronary angiography and CT coronary angiography. Analyses were conducted using univariate statistics.

Results:

The cohort consisted of mainly Kuwaiti nationals with an average age of 61 ± 10 years. Females consisted 41% of the cohort, were older by an average of 9 years (P = 0.001), and were overweight (67% vs. 44%). Males were more likely to be cigarette consumers (47% vs. 14%; P = 0.022). Females had more comorbidities such as hypertension (86% vs. 80%) and atrial fibrillation (24% vs. 10%), excluding stroke (0% vs. 3.3%), and coronary artery disease (71% vs. 83%). Males had an elevated level of creatinine (88 vs. 72 umol/L; P = 0.045). Other results were not significantly different between genders. Males were more likely to be prescribed aspirin upon admission (100% vs. 81%; P = 0.026), however, this difference decreased upon discharge (97% vs. 86%; P = 0.297). Recurrent ischemia (12%; n = 6) was the most common major outcome recorded.

Conclusions:

This study shows that females were more likely to be older than their male counterparts whereas males were more often on aspirin and more likely to be cigarette smokers. We found no significant differences in comorbidities, admission laboratory and imaging results, nor outcomes between genders.
Kuppuswamy and Prasad's socioeconomic status scale
Authors: Sinha Shardhanjali , Kumar Aniket
Published: December 2021

Socioeconomic status (SES) is the predictor of the health status of an individual and a nation at large. It is one of the modifiable risk factors, measured by many researchers for estimating its impact on multiple health indicators. The actual impact of SES can only be estimated by updating the SES scale in accordance with the factors subsisting in the present scenario. Among all socioeconomic parameters, income is considered as the core parameter of SES that keeps on changing its value over time. The income of an individual or a household is a widely used marker to assess the socioeconomic position in all settings, either rural or urban. Therefore, we have attempted to update the income scale of the two most popular SES classification scales, i.e. Kuppuswamy and B. G. Prasad's SES scale for the base year 2016 and for the month of May 2021.
Validation of a lateral flow immunoassay for the detection of immunoglobulin G/immunoglobulin M antibodies to severe acute respiratory syndrome coronavirus 2-COVID-19 among symptomatic and asymptomatic high-risk OBGYN patients in selected hospitals in Olongapo city and Zambales – A multicenter prospective study
Authors: Guiao Tosca Camille S. , Valdez Corazon R. , Aquino Louella P. , Rivera Daisy Grace Z. , Valenzuela Madonna M.
Published: December 2021

BACKGROUND/INTRODUCTION:

As the world face health-system shocks from COVID-19, Obstetrician-Gynecologists become perplexed by the uncertainties these bring to the vulnerable pregnant and gynecologic population. The country's capacity for diagnosis via RTPCR consists of only a tiny proportion of the population. With the intent of coming up with a less expensive fast point of care test kits, antibody-based lateral flow assays were developed.

AIMS AND OBJECTIVES:

Determine the diagnostic accuracy of a lateral flow immunoassay for the detection IgM/IgG antibodies to SARS-CoV2 using RT-PCR as gold standard among symptomatic and asymptomatic high risk OBGYN population.

MATERIALS AND METHODS:

This is a multicenter cross-sectional prospective study performed on 147 asymptomatic and symptomatic high risk OBGYN patients who underwent both RTPCR and RAT. Test results were entered using a two by two table to compute for the sensitivity (Sn), specificity (Sp), positive and negative predictive value (PPV/NPV), likelihood ratios (LR) comparing RT-PCR with IgM/IgG using Medcalc statistical software.

RESULTS:

The RAT for IgG/IgM was not found to be sensitive in both groups. It was able to identify only one of the five patients who had COVID-19 based on RT-PCR. Moreover, the (PPV) was found to be only 20% since only one patient tested positive in the RAT for IgM/IgG that was also positive in the RT-PCR. The (LR+ and LR-) for the symptomatic group was close to 1 implying a slightly higher probability of a true positive compared to that of a false positive test and a negative test result given the absence of the disease respectively. (Sp) and (NPV) of the RAT for IgM/IgG is high for both groups. This means that RAT for IgM/IgG does well in identifying patients who truly do not have COVID-19.

CONCLUSION:

With a very low sensitivity of 5% in this study, RAT for COVID-19 cannot be used for screening purposes.
Asymmetric twinning
Authors: Arenas Nancy Andrea C. , Bautista-Zamora Brenda Bernadette P.
Published: December 2021

A 16-year-old primigravida, at 33 weeks and 5 days age of gestation came in due to preterm labor. Sonographic examination revealed an incidental finding of a mass attached to the sacrococcygeal area. The mass has a cystic and solid component diagnosed as sacrococcygeal teratoma. Attached to the mass were two lower extremity structures identified as femurs with feet and was considered as an underdeveloped parasitic twin. A classical cesarean section was performed because of the advanced preterm labor, and a live female infant weighing 2500 g was delivered. The parasitic lower limbs, however, inadvertently detached during delivery. There was a high index of suspicion because of a larger fundic height of 37 cm compared to the age of gestation and the difficult palpation on Leopold's maneuver. Accuracy of ultrasound findings helped the obstetricians to a timely and prepared for delivery.
A well-orchestrated EXIT strategy
Authors: Desabelle-Justo Luka , Guzman Nerissa Nano-De
Published: December 2021

A fetal neck mass such as cystic hygroma imposes a challenge in the continuing prenatal care and birth strategy for a 26-year-old gravida 2 para 1 (1001) with a scarred uterus from previous low transverse cesarean section (CS). An intricate delivery for the fetus with a potential airway obstruction necessitates an ex utero intrapartum treatment (EXIT) delivery. The patient was initially scheduled to undergo the procedure at 38 weeks of gestation, but preterm labor ensued. Close antenatal monitoring was done which carried the pregnancy to term. The multidisciplinary approach and planning requires consensus among varied specialties as this maternal–fetal surgery differs immensely from a regular CS. This aims to document and discuss the preoperative, operative and postoperative management done for this patient. The EXIT procedure was performed at 38 weeks' age of gestation with good maternal outcomes. The fetus was delivered safely.
Plasmacytoma of the cervix
Authors: Tuason Katherine Marie A. , Rayel Concepcion D.
Published: December 2021

Plasmacytoma is a rare disease entity that represents only 5%[FIGURE DASH]10% of all plasma cell neoplasms. It is rarely found in the female genital tract. There are 8 identified case reports on plasmacytoma of the cervix. The clinical symptoms are nonspecific and biopsy with immunohistochemistry is used to diagnose. Due to the paucity of cases, there is no standard treatment modality. We present a case of a 34-year-old patient who had a history of postcoital bleeding. Biopsy and immunohistochemistry were done which confirmed the diagnosis of plasmacytoma. Total abdominal hysterectomy, bilateral salpingectomy with transposition of ovaries was the chosen treatment option.
Divergence of finitely presented groups
Authors: Brady Noel , Tran Hung Cong
Published: December 2021

We construct families of finitely presented groups exhibiting new divergence behavior; we obtain divergence functions of the form

r^\alpha

for a dense set of exponents

\alpha \in [2,\infty)

and

r^n\log(r)

for integers

n \geq 2

. The same construction also yields examples of finitely presented groups which contain Morse elements that are not contracting.
Skull base low-grade non-intestinal adenocarcinoma in a paediatric patient
Authors: Miu K. , Tornari C. , Surda P.
Published: December 2021

Background: Non-intestinal adenocarcinomas of the sinonasal tract are uncommon neoplasms in adults, and particularly rare in the paediatric population. Case presentation: A 10-year-old male presented to the Paediatric Otolaryngology clinic with symptoms of recurrent epistaxis, persistent clear nasal discharge, and a left-sided polypoidal swelling causing nasal obstruction. An endoscopic biopsy of the polyp under general anaesthesia found a mass arising from the anterior olfactory cleft, and the histology report described the mass as a low-grade non-intestinal adenocarcinoma. CT and MRI of the sinuses post-biopsy demonstrated no bony structure infiltration. The patient underwent a further endoscopic operation for definitive excision of the nasal mass, and the histology findings confirmed a complete resection of the tumour. Conclusion: This case demonstrates the first case of a primary low-grade non-intestinal adenocarcinoma originating from the olfactory cleft.
Cognitive Outcomes at 18 Months: Findings from the Early Life Interventions for Childhood Growth and Development in Tanzania (ELICIT) Trial
Authors: Parpia Tarina , Svensen Erling , Elwood Sarah , Wanjuhi Anne , Blacy Ladislaus , Bayo Eliwaza , Houpt Eric , Rogawski McQuade Elizabeth , DeBoer Mark , Platts-Mills James , Mduma Estomih , Scharf Rebecca
Published: December 2021

Micronutrient deficiencies and enteric infections negatively impact child growth and development. We enrolled children shortly after birth in a randomized, placebo-controlled, 2 × 2 factorial interventional trial in Haydom, Tanzania, to assess nicotinamide and/or antimicrobials (azithromycin and nitazoxanide) effect on length at 18 months of age. Cognitive score at 18 months using the Malawi Developmental Assessment Tool (MDAT), which includes gross motor, fine motor, language, and social assessments, was a secondary outcome. Here, we present the MDAT results of 1,032 children. There was no effect of nicotinamide (change in development-for-age Z score [DAZ] −0.08; 95% CI: −0.16, 0) or antimicrobials (change in DAZ 0.04; 95% CI: −0.06, 0.13) on overall MDAT score. The interventions had no effect on cognitive outcomes in subgroups defined by gender, socioeconomic status, birthweight, and birth season or on MDAT subscores. Further analyses are needed to identify targetable risk factors for impaired cognitive development in these settings.
Measuring Ambulation, Motor, and Behavioral Outcomes with Post-stroke Fluoxetine in Tanzania: The Phase II MAMBO Trial
Authors: Mateen Farrah J. , Massawe Emmanuel , Mworia Notburga A. , Ismail Seif , Rice Dylan R. , Vogel Andre C. , Kapina Boniface , Mukyanuzi Novath , Buma Deus C. , Gluckstein Jef , Wasserman Michael , Fasoli Susan E. , Chiwanga Faraja , Okeng’o Kigocha
Published: December 2021

We test the safety of fluoxetine post-ischemic stroke in sub-Saharan Africa. Adults with acute ischemic stroke, seen <14 days since new-onset motor deficits, were enrolled from November 2019 to October 2020 in a single-arm, open-label phase II trial of daily fluoxetine 20 mg for 90 days at Muhimbili National Hospital, Dar es Salaam, Tanzania. The primary outcome was safety with secondary outcomes of medication adherence and tolerability. Thirty-four patients were enrolled (11 were female; mean age 52.2 years, 65% < 60 years old; mean 3.3 days since symptom onset). Participants had hypertension (74%), diabetes (18%), and smoked cigarettes (18%). The median National Institutes of Health Stroke Scale score at enrollment was 10.5. The median Fugl-Meyer Motor Scale score was 28.5 (upper extremity 8, lower extremity 17.5). 32/34 participants (91%) survived to 90 days. There were eight serious and two nonserious adverse events. Deaths occurred due to gastrointestinal illness with low serum sodium (nadir 120 mmol/L) with seizure and gastrointestinal bleed from gastric cancer. The average sodium level at 90 days was 139 mmol/L (range 133–146) and alanine transaminase was 28 U/L (range 10–134). Fluoxetine adherence was 96%. The median modified Rankin Scale score among survivors at 90 days was 2 and Fugl-Meyer Motor Scale score was 66 (upper extremity 40, lower extremity 27). Median 90-day Patient Health Questionnaire-9 and Montgomery-Åsberg scores were 3.5 and 4 (minimal depression). Fluoxetine administration for 90 days poststroke in sub-Saharan Africa was generally safe and well-tolerated, but comorbid illness presentations were fatal in 2/34 cases, even after careful participant selection.
An Orthodox perspective on hamartology and ecology: Assessing John Chryssavgis’ contribution to current discourse
Authors: Cloete Newton
Published: December 2021

This article is a sequel to my earlier paper entitled ‘Hamartology and Ecology: An assessment of Aruna Gnanadason’s contribution to the contemporary debate’. Christian ecotheology presents a Christian critique of ecological destruction while also offering an ecological critique of Christianity. It entails a reinterpretation of all the classic Christian symbols, in this case the doctrine of sin, specifically the nature of sin, explored in the light of ecological discourse. Considering the contemporary ecological crisis, this article highlights Orthodox theologian John Chryssavgis’ contribution to the current debate. Following a concise overview on Christian discourse on ecology, as well as the Christian understanding of the nature of sin and the ways in which it is re-described in contemporary ecotheological terms, this article explores John Chryssavgis’ position on ecotheological discourse through a discussion of anthropocentrism, domination in the name of differences of species, consumerist greed, alienation of humans from the earth community as well as denial and disdain. The Orthodox tradition is an important factor in the formulation of his ecotheology. The method employed here encompasses ecclesial scrutiny, namely Chryssavgis’ assessment of the Christian tradition’s role in contributing to the contemporary crisis, followed by theological reflection on
his interpretations of ecological sin and finally, alternative courses of action to appropriately address the issues in question. In closing, the article offers an assessment of Chryssavgis’ overall contribution to current ecotheological discourse.
Effect of Potassium Alum and Carbon Black Nanoparticles on Casted Peo Composite: Phase Angle, Dielectric Constant, Impedance and AC Conductivity
Authors: Miqdad Husam
Published: December 2021

The electrical characteristics of hybrid polymer thin films consisting of conductive carbon black (CB) nanoparticles (0.1wt%) doped in poly(ethylene oxide) (PEO) filled with electrolyte potassium alum salt at varied concentrations were studied. For varied potassium alum concentrations and fixed content of conductive carbon black of concentration (0.1 wt. percent), the AC electrical characteristics were studied in the frequency range (3kHz - 5MHz) and temperature range (30 oC - 55 oC). Thin film physical constants such as dielectric constant, dielectric loss, AC conductivity, and impedance have been recorded. These measured amounts were discovered to fluctuate with potassium alum concentration, applied field frequency, and temperature. With increasing potassium alum content, frequency, and temperature, the AC conductivity (ac) increases. Dielectric constant (ε') and dielectric loss (ε'') of the composites increase with potassium alum concentration and decrease with frequency.
A Comparison of Wireless Devices for Terahertz Imaging Applications
Authors: Tan Camille Merlin S. , Materum Lawrence
Published: December 2021

As technology advances, notable scientific research accomplishments have been made. Terahertz (THz) waves have been seen to have endless potential applications that could further improve the current limitations of other frequency bands for imaging applications. Currently, THz waves display great potential in various applications due to their noninvasive and nonionizing features. However, the THz band has not been technically well established. This paper focuses on a comparative survey of the current methods applied in THz imaging in the field of medical and industrial security applications. Different types of methods, findings, advantages, and challenges of surveys ranging from 2016 to 2021 were discussed for both medical and industrial security applications to deepen the understanding of the latest trends, research, and technologies to have efficient THz imaging systems.
DISEÑO DE UNA TAREA AUTÉNTICA ASISTIDA POR UN SOFTWARE DE DISEÑO DE INTERIORES EN 3D PARA EL TRABAJO CON ÁREA Y PERÍMETRO
Authors:   Benemérita Universidad Autónoma de Puebla, Montaño-Ramos Romario , Juárez-Ruiz Estela ,   Benemértica Universidad Autónoma de Puebla
Published: December 2021

En este artículo se presenta el diseño y análisis de una situación de tarea auténtica implementada con un estudiante colombiano de grado noveno de básica secundaria por medio de una entrevista clínica. Para el análisis se plantearon preguntas que permitieron conocer el cumplimiento de los aspectos de autenticidad propuestos en la teoría de situaciones de tareas auténticas y a su vez conocer la pertinencia de la situación para el trabajo con las supuestas relaciones entre los conceptos de área y perímetro de figuras planas. Los resultados obtenidos muestran que el estudiante logró hacer uso de sus conocimientos extraescolares en la solución de las tareas y que el uso del software Sweet Home 3D posibilita la visualización de factores que no son usualmente considerados por el estudiante cuando razona en las posibles soluciones del problema.
Studying South African Black Gay Men’s Experiences: A First-Time Researcher’s Experience of Reflexivity in a Qualitative Feminist Study
Authors: Maake Tshepo
Published: December 2021

Qualitative research on gay experiences in South African society is slowly gaining momentum. However, it is accompanied by serious ethical implications and positionality dilemmas that should be considered in carrying out such research. Black gay researchers’ discussions of reflexivity in research that focuses on gay identities and realities in South Africa remain minimal. This paper focuses on a first-time gay male researcher’s experience of being reflexive in a qualitative feminist study on the realities of Black gay men in mining workplaces. It highlights the importance of reflexivity and how it is enacted by a gay researcher who studies a gay population that they are in some way a part of, especially in South Africa, where sexuality is still a contentious topic. It is easy for a researcher to alter participants’ narratives when they are a part of the population because they already have certain perceptions based on their personal experiences. This paper posits that the sexual and other intersecting identities and personal experiences of a researcher matter in research on vulnerable sexual minorities and should be a basis for critical reflections in qualitative feminist research.
BINDING OF 17-SUBSTITUTED 16-NITRILE 16,17-SECOESTRANE COMPOUNDS TO ESTROGEN RECEPTORS – „IN VITRO“ AND „IN SILICO“ STUDY
Authors:   University of Novi Sad, Faculty of Sciences, Jovanović-Šanta Suzana S. , Isenović Esma , Petrović Julijana A. , Dzichenka Yaraslau U.
Published: December 2021

About 75% of breast cancers express estrogen receptors (ERs), which is a good base for an efficient endocrine therapy. This gives the opportunity for the treatment of patients with antiestrogens, compounds that bind to the ERs and thus compete to estradiol (E2), preventing its action in progression of estrogen-depending cancers. Here we present results of testing the effect of the modified steroids, namely 17-substituted 16-nitrile 16,17-secoestrane compounds on the E2-ER complex forming, its stability, nuclear translocation and binding to DNA. Almost all compounds in moderate to high rate induced lower forming of this complex, destabilizing it – they increased Kd of this complex and decreased number of binding sites. Complex formed in the presence of some test secosteroids could pass to the nucleus, while other compounds inhibited translocation. In the presence of some compounds binding of the formed complex E2-ER to DNA was noticed. Docking followed molecular dynamics simulation was performed to reveal binding mode of E2 to ER in the presence of test secosteroids. Amino acids important for binding process and complex stabilization were detected. Analysis of the simulation data allowed identifying key amino acids and type of binding of the secoestrane compounds, important for high affinity binding of the steroidal compounds.
THERMODYNAMICALLY INVESTIGATIONS OF FREE RADICAL SCAVENGER POTENCY OF 1,2,4-TRIHYDROXYTHIOXANTHONE
Authors: Jeremić Svetlana R. , Đorović Jovanović Jelena R. , Stanojević Pirković Marijana S. , Marković Zoran S.
Published: December 2021

The operative mechanism of the antioxidative action of 1,2,4-trihydroxythioxanthone (TX) is investigated in this contribution. Conclusions are made based on enthalpy values, as thermodynamical parameters. All calculations are done using the M06-2X/6-311++G(d,p) level of theory. To imitate polar and non-polar environments, calculations are done in water and benzene as the medium. It is found that, among three possible radicals that TX can generate, the most stable is the one obtained by homolytic cleavage of the O-H group in position 4. It was found that HAT (Hydrogen Atom Transfer) is the most plausible mechanism for that purpose in benzene. On the other hand, the most favorable mechanism in water is SPLET (Sequential Proton Loss Electron Transfer). Here is estimated the capacity of TX to deactivate hydroxyl (HO●), hydroperoxyl (HOO●) and methylperoxyl radical (CH3OO●). It is found that TX can deactivate all three free radicals following HAT and SPLET reaction mechanisms competitively, in the polar and non-polar environment. SET-PT (Single-Electron Transfer followed by Proton Transfer) is the inoperative mechanism for radicals scavenging, in the polar and non-polar environment.
Weight Coefficient Setting of Current Predictive Control for Permanent Magnet Synchronous Machine using HPSO
Authors:   College of Automation and Electrical Engineering, Lanzhou Jiaotong University, Luo Yinhang , Gao Fengyang ,   College of Automation and Electrical Engineering, Lanzhou Jiaotong University, Yang Kaiwen ,   College of Automation and Electrical Engineering, Lanzhou Jiaotong University
Published: December 2021

Aiming at the problem of multi-objective weight coefficient setting of model predictive control (MPC) for permanent magnet synchronous motor (PMSM), a hybrid particle swarm optimization (HPSO) algorithm with low computational complexity of fitness value is proposed to realize the self-setting of weight coefficient of cost function. In the proposed strategy, good particles update velocity and position through particle swarm optimization (PSO) algorithm, while bad particles not only do the same but generate the offspring by cross and mutation, and then the worse offspring will be replaced by their extremum individuals. It is faster that the adaptive cross and mutation rate makes the offspring get closer to the good particles, and it increases the diversity of particles without destroying the good particles. Experimental results show that compared with other optimization algorithms, the proposed algorithm. Firstly, is more inclined to escape from the local optimum. Secondly, it has higher search accuracy and faster convergence speed. Moreover, with setting weight coefficient, the system speed regulation time is shortened, the current total harmonic distortion (THD) is reduced significantly, and the switching frequency is effectively reduced without affecting the output power quality.
Analysis and Design of Oil Cooling Structure in Motor Shaft of New Energy Vehicle
Authors:   Key Laboratory of Fujian Universities for New Energy Equipment Testing, Putian University, Chen Xuejun Chen , Ma Lin ,   School of Mechanical Engineering and Automation, Fuzhou University, Shen Jun ,   School of Mechanical Engineering and Automation, Fuzhou University
Published: December 2021

Due to the small volume and high-power density of new energy vehicle motor, a large number of losses in the working process are converted into heat accumulation, resulting in temperature rise, which affects its efficient operation. Based on the heat conduction mechanism, four kinds of shaft oil cooling models with different structures are designed, which are comprehensively analysed by using the thermal-fluid-structure coupling analysis method, and the most effective cooling shaft oil cooling model is solved. The simulation is based on Ansoft Maxwell, and the loss results of each component of the motor are obtained, and the loss data is imported into the Fluent software for fluid-structure coupling analysis. By keeping the other variables consistent, the oil flow rate, pressure drop, and temperature rise of four kinds of in shaft oil cooling structures are analysed and compared. The experimental results show that the rectangle around type is the optimal oil cooling structure. In addition, based on the rectangle around oil duct model , the thermal-fluid-structure coupling analysis of the whole motor is carried out, and compared with the motor without cooling system. The temperature rise cloud diagram of the two motors shows that the former has more obvious heat dissipation effect than the latter, and effectively reduces the temperature rise of the motor, especially the rotor and permanent magnet parts, which verifies the rationality of the shaft cooling structure design.
Lightweight Design of Patch Plate on Car-body B-pillar based on Side Impact Safety
Authors:   Application Technology Department, Shougang Research Institute of Technology, Zhang Wei
Published: December 2021

The B-pillar of automobile needs to meet the requirements of vehicle strength and rigidity, and also consider the fuel economy of vehicle. Therefore, the design and development of B-pillar is a difficult point in the field of car body design and manufacturing. Based on the side impact regulations, the safety model ling and simulation analysis of the B-pillar of the vehicle was carried out to obtain the change law of the intrusion amount and the intrusion speed of the five key points in the whole process. According to the analysis results of side impact of B-pillar, a scheme to reduce the material thickness of B-pillar body and increase patch plate for lightweight design was proposed, and a comparative analysis of the safety of side impact was made. In view of the problem that the intrusion of B-pillar of a real vehicle model did not conform to the regulations, the design scheme of adding patch plate was proposed to improve the safety of side impact. According to the actual collision results, the simulation model was modified, and the design scheme was simulated and optimized. The reliability of the design scheme was verified by the real vehicle collision analysis. The results show that: in the side collision of B-pillar, the intrusion of D2 position measurement point is the largest, the intrusion velocity of D3 position measurement point is the largest, and the intrusion amount and intrusion speed of D5 position measurement point are the smallest. Patch plates are added to the inner side of adjacent area of D2 position measurement point. The welding point is welded with B-pillar structure, and other areas of B-pillar keep the same structure, so as to realize lightweight and effective improvement of safety. Under the condition of maintaining the original material and thickness of B-pillar, two patches with thickness of 2 mm and material of B340LA are added in the middle of B-pillar to improve the structural strength. The defect area is set at the wrinkle position of the original B-pillar to guide the deformation mode of the B-pillar. The relative deviation between simulation calculation and test intrusion is less than 20 %, and the car crash simulation model with improved B-pillar structure is more accurate. For this type of car, the optimization and improvement effect of B-pillar structure is ideal, which improves the passenger safety protection ability in side impact.
ÇOCUK İSTİHDAMINI ETKİLEYEN FAKTÖRLER
Authors: ERİŞ DERELİ Bilge
Published: December 2021

Çocuk istihdamı çocuk bireyin bedensel, zihinsel, ruhsal ve sosyal gelişimini olumsuz yönde etkilemesi açısından oldukça önemli bir sorundur. Aynı zamanda çocuk işgücünün uzun vadede hem bireysel hem de ulusal boyutta yarattığı maliyetler oldukça yüksektir. Bu çalışmada Türkiye İstatistik Kurumu tarafından yayınlanan, en güncel veri olan 2019 yılı Çocuk İşgücü Araştırması mikro veri seti kullanılmış ve çocuk bireylerin istihdamda yer almalarını etkileyen faktörler incelenmiştir.

Amaç: Bu çalışmanın amacı Türkiye’de çalışmakta olan çocuk bireylerin çalışma kararlarını etkileyen faktörleri analiz etmektir.

Metodoloji: Çalışmada en küçük kareler (EKK) yöntemi ve ikili cevap değişkeni temelinde lojistik regresyon modeli, tamamlayıcı log-log regresyon modeli ve cezalı en çok olabilirlik lojistik regresyon modeli kullanılmıştır.

Bulgular: Çalışmanın bulgularına göre kız çocuk bireylerin çalışma olasılığı erkek çocuk bireylere göre daha düşüktür. Aynı zamanda çocuk bireyin eğitimine devam etmesi, anne ve babanın eğitim seviyesinin artması ve anne ve babanın işgücü dışında olmaya göre istihdamda olması; çocuk bireyin istihdamda olma olasılığını düşüren faktörlerdir. Bu etkilerin yanı sıra, çocuk bireyin yaşının artması, anne ve babanın yaşının 35’ten yüksek olması ve anne ve babanın işgücü dışında olmaya göre işsiz olması çocuk bireyin istihdamda olma olasılığını artıran faktörlerdir. “Çocuk bireylerin istihdamda yer almalarını etkileyen en önemli faktörler nelerdir?” sorusu çerçevesinde tahmin edilen standartlaştırılmış beta katsayıları incelendiğinde, çocuk bireyin çalışma olasılığını en çok etkileyen faktörler arasında çocuk bireyin kendi demografik özelliklerinin yanı sıra annenin eğitim seviyesi ve işgücü durumu değişkenlerinin yer aldığı görülmektedir. Bu çarpıcı sonuç, çocuk işçiliği ile mücadelede kadınlar ile ilgili eğitim ve istihdam politikalarının da önemini gözler önüne sermektedir.

Özgünlük: Türkiye’de çocuk istihdamı ile ilgili mevcut en güncel veri setinin kullanılması, çocuk istihdamını etkileyen faktörlerin daha önce bu konu bağlamında yapılan çalışmalardan farklı yöntemler kullanılarak analiz edilmesi ve standartlaştırılmış beta katsayıları hesaplanarak çocuk istihdamını en çok etkileyen faktörlerin incelenmesi bu çalışmanın özgün yanları olarak öne çıkmaktadır.
The Finances of the Hungarian Aristocracy in Boom and Recession
Authors: Kurucz György
Published: December 2021

Based on primary sources, the present study is intended to reconstruct and analyze the process and levels of indebtedness of some of the outstanding Hungarian aristocratic families possessing large landed properties in the western region of Hungary, mainly in the Transdanubian counties. The author provides exact numerical data on the changes of the registered amounts of credit transactions, the stocks of assets and liabilities of the princely line of the Esterházy, Batthyány and the Keszthely branch of the Festetics families at the turn of the eighteenth and nineteenth centuries. He explores the various documents kept by the financial administrations of the families, including contemporary county mortgage records, which testify to an extremely lively lending and borrowing environment during the French Wars. The study concludes that devaluations and the financial crises of the Austrian Empire in the 1810s exerted an adverse effect on the finances of both the above families and contemporary ‘small investors’.
The Hungarian Atlas of Historic Towns
Authors: Szende Katalin
Published: December 2021

This article surveys the work carried out in the past two decades on the Hungarian Atlas of Historic Towns in a Central European context. With its more than 550 atlases published in nineteen European countries in the last fifty years, the European Atlas of Historic Towns is one of the most comprehensive collaborative projects in the field of humanities. The countries of East Central Europe could join the project only after the fall of the Iron Curtain, and Hungary published its first atlas as late as 2010. In four subsequent project phases, the Hungarian atlas team has been working on nineteen atlases of eighteen towns, out of which eight have been published so far. The editors follow the standards set by the International Commission for the History of Towns and have adopted best practices represented by the Austrian, Polish and Irish atlas series. In addition to describing the source basis and the main methodological concerns, the article highlights examples of comparative urban research for which the atlases offer an unparalleled potential. The article also advocates a more extensive use of this exceptional resource.
TOPLUMSAL CİNSİYETİN GEBELİK, DOĞUM VE DOĞUM SONU DÖNEMDE KADIN SAĞLIĞINA ETKİSİ
Authors: ÖZEL Feyza Sıla , SÖYLEVİ Semanur , YILMAZ Şeyma , AKMAN Gulay
Published: December 2021

Toplumsal cinsiyet eşitsizliği nedeniyle kadınlar daha düşük öğrenim düzeyine sahip olmakta, daha az iş gücüne katılmakta ve dolayısıyla daha az gelir elde etmektedir. Tüm bunların paralelinde evlilikte, aile içinde, çalışma yaşamında ve sağlık hizmetlerinden yararlanmada bağımsız karar verememekte, sağlık hizmetlerine erişimde sorun yaşamaktadır. Toplumsal cinsiyet eşitsizliğinin kadın sağlığını en çok etkilediği alan üreme sağlığı hizmetleridir. Bu etki nedeniyle; şiddet, ihmal, istismar, cinayet, istenmeyen ya da adölesan gebelikler, cinsel yolla bulaşan hastalıklar, sağlıksız yollarla gerçekleşen düşükler, hastalıkların tanısında gecikmeler görülebilmekte ve böylece kadınlar daha fazla hastalanmakta, engellilik yaşamakta ve ölmektedir. Toplumsal cinsiyet eşitsizliği gebelik, doğum ve doğum sonu dönemlerde de kadın sağlığını etkilemektedir. Kadından toplumsal statüsünü arttırması için çocuk doğurması hatta soyun devamı olarak düşünülen erkek çocuk doğurması beklenmekte, gebeliği önleyici yöntem kullanma ve gebeliği önleyici yöntemlere erişimde engellerle karşılaşmaktadır. Gebelik döneminde ise birçok kadın doğum öncesi bakım almada zorluklar ve sınırlılıklar yaşamaktadır. Toplumsal cinsiyet eşitsizliğinin doğrudan ya da dolaylı etkisiyle düşük benlik saygısı, destek sistemlerinin yetersiz ya da yanlış oluşu, evlilik problemleri, doğum yorgunluğu gibi pek çok nedenle kadınlar doğum sonu dönemde kendilerini annelik konusunda yetersiz hissetmektedir. Toplumsal cinsiyet eşitsizliği gebelik, doğum ve doğum sonu dönemde; kadının karar verme sürecinde düşük statüye sahip olması, tehlike işaretleri konusunda bilgi eksikliği, yanlış inanışlar, hizmete erişimde sorun yaşaması, ekonomik sıkıntılar, sağlık kuruluşlarının yetersizliği, uzak olması, sağlık çalışanlarından gereksinim duyduğu desteği alamaması gibi birçok nedenle kadınların gereksinimi olan sağlık hizmetlerini almasına engel olarak anne ölümlerinin yaşanmasına neden olabilmektedir. Kadınlara en yakın sağlık profesyonelleri olan hemşirelerin, kadınların tüm yaşam dönemlerinin yanı sıra gebelik, doğum ve doğum sonu dönemde de toplumsal cinsiyete dayalı eşitsizliklerin önlenmesinde aktif rol almaları, kadın sağlığını koruma, sürdürme ve geliştirmeye yönelik bakım vermeleri önerilmektedir.
Web-Based Student Project Management System: A Tetfund Institution-Based Research Report
Authors:   Department of Computer Science Akanu Ibiam Federal Polytechnic, Unwana, Chikwendu Ugboaja Uchenna
Published: December 2021

Students’ final year projects are often characterized by poor quality, duplication of existing works, prolonged research writing and late submission. This TetFund sponsored research project: Web-based Student Project Management System, is designed with the latest technologies to mitigate these challenges. The project is designed to provide continuous, timeless and boundless communication between project coordinators and students, students and their supervisors, as well as students researching in the same field. The project automates routine project activities such as listing and selection of project topics, approval of project topics, project report writing guidelines, student/supervisor correspondence, assessment and report submission, and finally report storage and management. Thus, it will eliminate the duplication and recycling of existing projects by making sure that such projects are rejected automatically at the very point of submission for approval, as well as guarantee high quality and timely completion and submission of students’ projects. Agile software design approach, due to its high degree of stakeholder involvement and incremental testing of functionalities, was deployed to design the project. Also the system was developed using Java programming language with Apache Tomcat Server and MySQL as the Database Management System.
Evaluation of Enterprise Value of Securities Firms Listed on the Vietnam’s Stock Market
Authors:   Hanoi University of Natural Resources and Environment, Vietnam, Hoan Nguyen
Published: December 2021

Enterprise value is the total value of all assets under the current ownership of the enterprise. Earnings before Interest and Taxes (EBIT) is the profits from business activities. Earnings before interest, taxes, depreciation and amortization (EBITDA) is a financial ratio that illustrates the business’s profits before deducting interests, depreciation and income taxes. The main purpose of this study is to empirically test financial indicators of securities firms listed on the Vietnam’s stock market. For this purpose, in this study we evaluate two (2) financial indicators of securities firms listed on the Vietnam’s stock market, including (i) Enterprise value to Earnings before interests and taxes (EV/EBIT); and (ii) Enterprise value to Earnings before interest, taxes, depreciation and amortization (EV/EBITDA). The results of the research show that financial indicators of securities firms listed on the Vietnam’s stock market have many significant differences. Therefore, managers may enhance the firm performance of their firms by specific measures and securities firms need to focus on measures to improve profit to raise enterprise value. This study will benefit the securities firms listed on the Vietnam’s stock market in the improvement of their firm performance.
Patungan Wakaf Online
Authors: Putri Ekarizki Aryani Mandala , Garadian Endi Aulia
Published: December 2021

Revolusi Industri 4.0 telah membawa praktek wakaf ke level yang jauh berbeda. Bila di masa Islam awal praktek tersebut dilakukan oleh individu yang relatif mampu secara finansial, sekarang siapapun dapat melakukannya dengan skema patungan. Dengan adanya platform crowdfunding digital siapa saja punya kesempatan untuk mewakafkan hartanya dalam skema patungan wakaf. Tulisan ini mengkaji bagaimana patungan wakaf online dipraktekkan di Indonesia. Selain itu, lewat pertanyaan model wakaf digital seperti apa yang mendorong orang-orang untuk melakukan wakaf, tulisan ini berargumen bahwa motivasi para wakif dalam mewakafkan hartanya lewat skema ini terletak pada bagaimana sebuah kampanye wakaf online dilakukan. Semakin meyakinkan sebuah kampanye dipresentasikan dengan kisah-kisah humanis dan punya potensi keberlanjutan yang besar, maka semakin tinggi kemungkinan sebuah kampanye wakaf online itu berhasil. Dengan menganalisa kampanye wakaf online di kitabisa.com, studi ini juga menemukan bahwa partisipasi digital masyarakat Indonesia dalam aktivitas filantropi turut mendorong iklim masyarakat sipil yang baik dalam konteks demokratisasi Indonesia.

Kata Kunci: patungan, wakaf, wakaf online, filantropi, revolusi industri 4.0.
Analisis Hukum Tukar Guling Tanah Wakaf
Authors: Mahasna Ali Salama , Almuin Nani
Published: December 2021

Pengaturan terkait dengan pemanfaatan tukar guling tanah wakaf di Indonesia untuk kepentingan sosial sudah diatur dalam peraturan perundang-undangan wakaf di Indonesia. Undang-undang  Nomor 41 tahun 2004 tentang wakaf pada pasal 41 ayat (1) dan ayat (2). Peraturan Pemerintah Nomor 42 tahun 2006 dan pasal 49 dan Peraturan Badan Wakaf Indonesia (BWI) Nomor 1 tahun 2008 mengatur bahwa larangan pertukaran harta benda wakaf yang sudah diwakafkan dapat dikecualikan jika telah mendapat izin tertulis dari Menteri Agama berdasarkan pertimbangan BWI. Penelitian ini mengidentifikasi : Analisis Hukum dan efektifitas tukar guling tanah wakaf di Indonesia, sejak diberlakukannya Undang-undang wakaf Nomor 41 tahun 2004. dan Proses tukar guling tanah wakaf di Indonesia dalam pemanfaatan pasilitas umum dan pasilitas sosial. Metodologi penelitian yang digunakan dalam penelitian ini adalah metode kualitatif melalui pendekatan Hukum normative dan sumber utama perundang-undangan. Hasil penelitian menunjukkan bahwa : Proses Tukar Guling Tanah Wakaf di Indonesia dalam pemanfaatan pasilitas umum dan pemanfaatan sosial lainnya saat ini tidak menjadi polemik karena proses dan pelaksanaannya diatur dalam peraturan perundang-undangan wakaf Nomor 41 tahun 2004, tentang Perubahan Status Harta Benda Wakaf, sementara dalam hukum agraria diatur beberapa kaidah hukum tertulis maupun tidak tertulis yang mengatur mengenai bumi, air dan dalam batas-batas tertentu ruang angkasa serta kekayaan alam yang terkandung di dalam yang menganut asas-asas sebagai berikut: asas Nasionalisme; asas dikuasai oleh Negara; asas Hukum adat yang disaneer; asas fungsi sosial; asas kebangsaan; asas non Diskriminasi; asas Gotong Royong; asas Unifikasi dan asas pemisahan Horizontal. Sementara dalam proses tukar guling tanah wakaf untuk pemanfaatan umum terdapat pada asas fungsi sosial, dimana tukar guling tanah wakaf untuk pemanfaatan sosial berupa jalan tol dan kepentingan umum lainnya. selama praktek tukar guling tanah wakaf untuk kepentingan yang bersifat positif maka perlu di dukung dan dikembangkan.

Kata Kunci:  Proses Tukar Guling tanah wakaf untuk Pasilitas Sosial dan Fasilitas Umum