bluuebunny/crossref_metadata_2025 huggingface dataset:
Coping Strategies in Emerging Adulthood among Russian Students
Authors: Klementyeva M.V. , Ivanova V.I.
Published: November 2023

As people grow up, coping strategies shift towards more adaptive styles, but little is known about coping processes in relation to psychological attributes of the new transitional period of “emerging adulthood” (ages 18-25). Applying the cultural-historical theory developed by L.S. Vygotsky and the ideas of J. Arnett’s neo-Eriksonian cultural theory of development, we have investigated the parameters of emerging adulthood (identity exploration and self-focus; negativity and instability; personal freedom; experimentation and possibilities; feeling in-between; and other-focus) as peculiar features of social situation of development related to coping strategies among Russian students. The sample consisted of data obtained from 510 students, aged 18 to 25 (40,1% male), studying at universities in cities of Moscow and Tula, Russia. The study presents the measurements of emerging adulthood (IDEA-R) and coping strategies (WCQ) using methods adapted to the Russian research pool. The findings suggest that prolongation of the transitional period to adulthood is associated with an increase in avoidant and emotion-focused coping strategies. We have found that the degree of anxiety caused by transitional instability and self-focus of young adults could work as predictors of attempts to overcome difficulties. Among themare problem denial, inflated expectations, suppression of emotions and self-blaming.The degree of openness to experimenting with life, optimism about the future, identity exploration, and other-focus worked as predictors of problem-solving, positive rethinking of the challenging situation, and seeking social support. We noticed that age and gender factors reduce the degree of dependence of coping strategies on psychological attributes of emerging adulthood. The study materials contribute to the understanding of the processes the age-related psychological development of modern youth deals with.
Profiles of Family Resilience and Vitality of Representatives of Russian and Belarusian Families
Authors: Odintsova M. , Lubovsky D. , Borodkova V.I. , Kozyreva N.V. , Vericheva O.N.
Published: November 2023

The article describes the results of cross-cultural research on the resilience and experience of family relations of Russian and Belarusian families. Comparative studies of the resilience of families of different ethnicities are both of teh theoretical and practical interest. The purpose of the study is to analyze the resilience and experience of family relations’ profiles of Russian and Belarusian families’ representatives. Representatives of 399 Russian and 404 Belarusian families took part in the study. We used the Russian-language version of the Family Resilience Assessment Scale, the questionnaires «Family Emotional Communications», «Experience of Close Relationships», and the projective technique of K. Adams «Space of Trees and Light». There are three clusters on indicators of family resilience, family emotional communications and experience of close relationships («anxious-critical», «viable», «emotionally restrained»). We give a description of the family resilience of the representatives from different clusters, the study revealed that there were no significant differences in the distribution of clusters between representatives of Russian and Belarusian families. At the same time, the study revealed differences in individual vitality of Russian and Belarusian families. Using narrative approach to historical memory, we analyzed the correlation of factors of individual vitality. We have outlined prospects for further research on this issue.
Tissue sampling and histopathological limitations in esophageal cancer
Authors: Akhmedzyanova Dina A. , Yutsevich Olga K. , Reshetnikov Roman V. , Tashchyаn Olga V. , Pirogov Sergey S. , Mazurova Maria P. , Volchenko Nadezhda N. , Kamalov Aziz K. , Shumskaya Yuliya F. , Mnatsakanyan Marina G.
Published: November 2023

Esophageal adenocarcinoma is a common gastrointestinal cancer. Esophagogastroduodenoscopy with biopsy and immunohistochemistry are used to detect the neoplasm at an early stage. Definitive diagnosis requires not only highly specialized equipment but also the skills of the endoscopist and pathologist. We report the case of a 35-year-old man with progressive dysphagia caused by gastroesophageal cancer. Numerous esophagogastroduodenoscopy studies, computed tomography, and barium X-ray swallow revealed an extensive esophageal lesion; however, pathomorphologic examinations did not confirm malignancy within a year. Histological studies showed pyloric gland adenoma and adenoma from parietal or oncocytic cells with high-grade dysplasia. Esophagogastroduodenoscopy with targeted biopsy at a specialized center confirmed the tumor malignancy. This clinical case demonstrates the importance of summing clinical symptoms and using additional instrumental methods to make a definitive diagnosis if biopsy results are ambiguous.
Source Spectra of Pg and Lg Waves from North Korean Nuclear Tests Estimated Using a Nonmodel-Based Approach
Authors: Jin Ping , Xu Henglei , Ding Shiban , Wang Weiping , Zhu Haofeng
Published: November 2023

In this article, we demonstrate that source spectra for regional seismic waves generated by an underground explosion may be uniquely extracted using a simple linear regression method between the geometrical spreading corrected displacement spectra and epicentral distances as long as the recording stations are well distributed in distances. Using this method, source spectra of Pg and Lg waves from North Korean nuclear tests conducted between 2009 and 2017 are estimated, respectively, and are compared to test the conjecture of Fisk (2006) as well as to determine the relative size between the seismic moment of Lg waves and that of compressional waves. For a specified explosion, the resultant Pg and Lg source spectra approximately have equal low-frequency source level. Based on this result, it is estimated that for the explosions seismic moment of Lg waves would be about 35% of that of compressional waves. In addition, it is shown the Fisk conjecture approximately stands, as for a specified explosion the observed Pg and Lg source spectra share the same manner of high-frequency rolloff as f−2, the source corner frequency of Lg waves is smaller than that of Pg waves by a factor of about 1/3, and the Pg source spectrum exhibits a prominent overshoot, whereas it is not obvious in corresponding Lg source spectrum. The new method for source spectra estimation may have a promising application prospect in monitoring studies. As an example, it is shown that the yield and even buried depths of the North Korean nuclear explosions may be reasonably estimated by fitting the observed Pg source spectra using an MM71- (Mueller and Murphy, 1971) and DJ91 (Denny and Johnson, 1991)-based hybrid source model suggested by Ford and Walter (2013).
Aproximación a las propuestas de Fidel Castro para el desarrollo de Cuba y de Latinoamérica en el Consejo Económico de los 21 (1959)
Authors: Beddal Abdelmalek , Mous Latefa , Maure Virgen
Published: November 2023

Este artículo tiene como objetivo puntualizar, en un plano teórico, las propuestas programáticas integradas en el ideal del líder de la revolución cubana Fidel Castro acerca de cómo promover el desarrollo político y económico de América Latina y el Caribe, en general, y de Cuba, en particular, y también enfatizar cómo enfrentar los factores asociados al subdesarrollo en que vivían, entonces, sus pueblos. Todo ello a partir del discurso pronunciado por Castro ante el Consejo Económico de los 21, organizado en Buenos Aires, entre el 28 de abril y el 8 mayo de 1959. Se concluye que una aproximación a las ideas del líder cubano permite entender que el desarrollo sostenible constituye un imperativo estratégico en sí, pues permitiría alcanzar la independencia y romper el ciclo de la fuerte dependencia con Estados Unidos.
Implications of the Serum Concentrations of Neuregulin-4 (Nrg4) in Patients with Coronary Artery Disease: A Case-Control Study
Authors: Taheri Fatemeh , Hosseinzadeh-Attar Mohammad Javad , Alipoor Elham , Honarkar-Shafie Elaheh , Yaseri Mehdi , Vasheghani-Farahani Ali
Published: November 2023

Background: Neuregulin-4 (Nrg4), a novel brown fat-enriched factor, has been reported to play a crucial role in developing metabolic disorders. The current case-control study aimed to investigate the association between serum Nrg4 and coronary artery disease (CAD).
Methods: This study enrolled 43 patients with CAD and 43 subjects with normal coronary arteries diagnosed by coronary angiography. Anthropometric and biochemical parameters were measured and recorded. The serum Nrg4 level was determined using the enzyme-linked immunosorbent assay. The relationships between circulating Nrg4 and CAD and other clinical parameters were analyzed. A receiver operating characteristic analysis was applied to assess the utility of Nrg4 in identifying CAD.
Results: The study population comprised 86 patients, including 64 men (74.4%), at a mean age of 57.83±6.01 years. Patients with CAD had significantly lower serum Nrg4 than the control group (P<0.001). The serum Nrg4 level was negatively correlated with anthropometric variables, including the body mass index, waist circumference, and the waist-to-hip ratio, fasting blood glucose, and the triglyceride-glucose index (P<0.05). In multivariable-adjusted regression analysis, the odds of CAD decreased by 46% per 1 SD elevation in the serum Nrg4 level (OR, 0.54; 95% CI, 0.40 to 0.73; P<0.001) after controlling for potential confounders. Nrg4 showed a significantly high area under the curve value (AUC, 0.85; 95% CI, 0.75 to 0.94) with 81.4% sensitivity and 95.3% specificity to identify CAD.
Conclusion: Generally, the serum level of Nrg4 declines in patients with CAD, which might be an independent risk factor for CAD.
A Fatal Case of Acute Thrombotic Occlusion in More Than 3 Epicardial Coronary Arteries Associated with the Yasmin Oral Contraceptive
Authors: Koza Yavuzer , Birdal Oğuzhan , Macit Rauf , Taş Hakan , Bayram Ednan
Published: November 2023

We report a case of a myocardial infarction (MI) due to multiple culprit vessels in a young woman. MI caused by more than 1 culprit vessel is very rare. Oral contraceptives (OCSs) are used for birth control. Despite a few case reports, the association between the new-generation OCS use and the MI risk remains controversial. A 53-year-old woman who had been consuming combined OCS-Yasmin (30 µg of ethinyl estradiol and 3 mg of drospirenone) for 2 years was admitted to our hospital with chest pain. Her past medical history revealed no coronary risk factors except for smoking. No hemodynamic instability was noted at admission. The admission electrocardiogram revealed slight ST elevations in D1 and aVL leads. An urgent coronary angiography showed distal occlusions in the right coronary, left anterior descending, first diagonal, and left circumflex coronary arteries. Unfractionated heparin and abciximab were administered during the procedure, with the latter continued for 12 hours after the procedure. During the hospital course, the patient complained of recurrent anginal attacks. A repeat coronary angiography demonstrated the persistence of thrombotic occlusions. After 24 hours, she experienced chest pain, and her electrocardiogram revealed diffuse ST elevations with a blood pressure of 60/40 mm Hg. She was urgently transferred to the catheterization laboratory. Multiple balloon inflations with intracoronary alteplase (10 mg over 5-10 min) injections failed to restore coronary flow, and she developed cardiovascular collapse. Despite maximal mechanic and mechanical support, she passed away.
IMPACTOS DA PANDEMIA NA IMPLEMENTAÇÃO DE ESTRATÉGIAS DE PREVENÇÃO DO CÂNCER DE COLO DO ÚTERO
Authors: Alves José Gerfeson , Braga Agna Teixeira , Alcantara Patricia Pereira Tavares de , Pereira Emanuelly Vieira , Almeida Neves de Oliveira Camila
Published: November 2023

Objetivo: refletir sobre os impactos da pandemia ocasionada pelo novo coronavírus na implementação de estratégias de prevenção do câncer de colo do útero na Atenção Primária à Saúde. Método: estudo teórico-reflexivo realizada em março de 2021 a partir de relato de experiência. Resultados: No período de estágio não houve a realização do exame preventivo por constituir atividade de risco para contágio (profissional/paciente) em relação à COVID-19. A vacinação de meninos e meninas contra o HPV continuou a ser realizada com datas e horários marcados previamente. Logo, a educação em saúde neste momento atípico, tornou-se instrumento chave para continuidade de assistência à saúde das mulheres, assim como a utilização da telessaúde. Conclusão: Os gestores e profissionais de saúde devem avaliarem continuamente o retorno do exame citopatológico mediante a situação epidemiológica local, e caso haja um retorno, é fundamental o seguimento às recomendações de órgãos governamentais.
Sobre a ideia de uma cultura Tecno-Estética em Gilbert Simondon
Authors: DAMASCENO VERONICA
Published: November 2023

Esse trabalho visa introduzir o modo com o qual Gilbert Simondon apresenta a relação entre os modos de existência dos objetos técnicos e sua estreita ligação ou necessidade de inserção desses objetos na cultura, no pensamento estético e no pensamento filosófico. Para ele, há uma necessidade imperiosa de reconhecermos a importância desses objetos em nossa sociedade. Simondon ressalta que, tanto a cultura quanto o pensamento estético, de modos diferentes, são capazes de inserir os objetos técnicos na sociedade, uma vez que cada uma dessas atividades em sua especificidade própria, desempenha uma tarefa fundamental. Por um lado, a cultura é o que trazemos conosco, nossa história. Sem ela não há devir possível; por outro lado o pensamento estético é capaz de interromper a ruptura existente entre a técnica e a religião desde os primórdios de nossa existência. Mas, apesar disso, o autor assinala ainda a importância do pensamento filosófico, o qual é, para ele, o único capaz de fornecer as bases para um conhecimento tecnológico e fundar uma tecnologia, justamente por causa de sua neutralidade, a mesma neutralidade que o pensamento estético perde ao tentar ser funcional ou sagrado. Para Simondon, somente no nível do pensamento, mais primitivo e mais elaborado de todos, isto é, o pensamento filosófico, que é possível intervir uma mediação verdadeiramente neutra, equilibrada e completa entre fases opostas. É, portanto, o pensamento filosófico o único capaz de assumir o conhecimento, a valorização e o acabamento do lugar da tecnicidade, no conjunto dos modos de ser no mundo do homem.
Interpersonal Violence and Maxillofacial Injuries: Toward an Active Surveillance Proposal Through the Presentation Profile in Hospital Emergency Services
Authors: Werlinger Fabiola , Villalón Marcelo , Duarte Valentina , Sepúlveda Pilar
Published: November 2023

To establish a set of variables that define a predictive profile of events of maxillofacial trauma resulting from interpersonal violence, we analyzed sociodemographic variables and clinical characteristics of injuries recorded in three tertiary care hospital centers in Chile. To assess the relation between categories, we applied a multiple correspondence analysis. We identified 567 cases. Two dimensions explained 53.4% of the model. The first dimension was composed of variables related to the severity of the injury: medical–legal prognosis (.574), type of trauma (.511), and the destination of the patient (.332); the second dimension was composed of variables related to the typology of interpersonal violence: type of violence (.398) and sex of the patient (.370). Two profiles were recognized: women, victims of domestic violence, with lesions affecting mainly soft tissues and not requiring hospitalization and men, victims of community violence, with lesions involving fractures associated with greater severity and requiring hospitalization. There are two key dimensions in the diagnosis of maxillofacial trauma resulting from interpersonal violence: severity of the injury and typology of the interpersonal violence. Exploring these predictive profiles can be a useful complement to the current screening tools of violence in clinical practice.
College Students’ Trust, Betrayal, and Needs During and After Their Worst Nonassault-Related Healthcare Experiences Differ Based on Sexual Violence Exposure
Authors: Lathan Emma C. , Selwyn Candice N. , Gigler Margaret E. , Langhinrichsen-Rohling Jennifer , Gilmore Amanda K.
Published: November 2023

The BITTEN theoretical framework conceptually links patient’s past healthcare betrayal and trauma experiences with their current and future healthcare interactions. BITTEN was used to examine whether healthcare experiences, behaviors, and needs differ between those with and without a history of sexual violence exposure. College students at two public universities in the southeastern United States (n= 1,381; 59.5% White, 61.0% women) completed measures about their self-selected worst or most frightening but nonassault-related healthcare experience. Multivariate general linear and mediation models were used to test theory-derived hypotheses. Participants exposed to sexual violence reported greater healthcare institutional betrayal, lower trust, and greater need for tangible aid and trauma-informed care during their worst nonassault-related healthcare experience. They also reported greater current healthcare avoidance alongside increased utilization of more physical and mental healthcare appointments, even after accounting for gender and race differences. These results suggest that, with minimal information about past sexual violence exposure, healthcare providers could be better poised to predict and address vulnerable patients’ healthcare needs.
The Importance of Narcissism and Impulsivity for Bullying and Cyberbullying Perpetration
Authors: Bağatarhan Tuba , Siyez Diğdem Müge , Vazsonyi Alexander T.
Published: November 2023

Bullying and cyberbullying remain serious public health concerns threatening the well-being of adolescents. The current study tested the links between narcissism and impulsivity and measures of both bullying and cyberbullying perpetration. Data were collected from 575 Turkish adolescents (54.4% female,Mage= 15.86,SD= 1.15). Hierarchical logistic regressions tested the main study hypotheses. Findings showed that narcissism and impulsivity were each independently and additively positively associated with both bullying and cyberbullying perpetration. Findings from a competing, ex post facto alternative model provided evidence that impulsivity was a mediator in the narcissism–bullying perpetration (partial) and the narcissism–cyberbullying perpetration links (full). Findings highlight the importance of considering both narcissism and impulsivity in evaluating the factors contributing to both forms of bullying behaviors, which has important prevention and intervention effort implications.
Concreto con cemento portland comercial escoria y ceniza
Authors: Gutiérrez Junco Óscar Javier , Pineda Triana Yaneth , Pérez Velásquez Sandra Patricia
Published: November 2023

La utilidad de este libro radica, además de establecer unas bases conceptuales claras y ordenadas sobre el cemento, en que da al lector interesado una perspectiva sobre el cambio de normas en la elaboración de cementos, ocurrido en el año 2014 en Colombia, seguramente, los aspectos contemplados ayudarán a comprender algunas de las implicaciones de este cambio en las investigaciones desarrolladas en el ámbito nacional.
Funeral Ritual Facilities for Pit Tombs in the Goryeo Dynasty: With focus on the Yanggwang Province
Authors:   Central Institute of Cultural Heritage, Chang Woo-Jeong
Published: November 2023

This study aimed to examine the changing process of funeral rituals around pit tombs from the perspective of Confucianism as the ruling ideology of Goryeo in the Yanggwang Province.
Type I of tombs with facilities along the boundary used a wooden coffin(i) to bury the deceased, given the tombs of government officials and the prohibited cases of tomb repair. They held an exorcism ritual(B) to promote the well-being and protection of the deceased or a burial ritual(A) to bury artifacts around the main burial part. The social classes with an official rank or economic power placed importance on a funeral ritual based on Confucian ideology. Type II of tombs with facilities along no boundary recorded a lower occupancy rate of four-object outer coffins(a), which protected the bodies of the deceased in a simple pit(ii) compared with a wooden-coffin tomb(i), than Type I of tombs with facilities along the boundary. These findings confirm that the social class using a simple pit(ii) in tombs with facilities along no boundary(II) had a tendency to place importance on courtesy such as the funeral ritual based on Confucian ideology.
The study then figured out the attributes related to the funeral rituals, classified them into three stages, and examined the spreading and changing process of a funeral ritual based on Confucian ideology. Stage 1 fell in a period between the early part of the tenth century and the early part of the 12th century. Stage containing shells for the Bangseup of the main burial part. Uirye confirmed the presence of the Chongin ritual(Sauhyeol+Yogaeng) performed by Chongins. Yegi confirmed the usage of spoons and chopsticks in the Seolchi process and that of scissors used before dressing a corpse for burial like others of the three Confucian courtesy books. Jujagarye confirmed the Sauhyeol of Bangsangsi Narye, the installation of Pyeonbang, and the usage of four-object outer coffins(a) to protect the body. Based on these findings, it is estimated that the ideological background of the funeral ritual around pit tombs in Goryeo came from the three major Confucian courtesy books and Jujagarye.
Editorial
Authors: Pascual Torres Raquel , Nieto Ovalle Catalina
Published: November 2023

Editorial
What was the change in undergraduate anatomy teaching strategies in response to the COVID-19 pandemic: Systematic Review
Authors: Castro Aviléz José Carlos , Salazar Medrano Luis Erik , Calvillo Ruiz Brisa Magdalena , Flores García José Andrés , Quintos Sánchez Jimena
Published: November 2023

Introduction: At the end of 2019 the Covid-19 pandemic caused a huge amount of restrictions across the world which affected teaching around the world as it was not prepared to move from traditional face-to-face to an online conversion overnight, so the aim of this paper is to determine the changes in undergraduate anatomy teaching strategies post-pandemic compared to pre-pandemic. Methods: A systematic review was conducted based on the PRISMA statement. Data were retrieved from the searches conducted in the different databases, and the articles to be retrieved were selected with the help of the Rayyan platform. Using the OPMER and JBI tools, the quality of evidence was assessed for the selection of the articles included in the review. Results: The teaching of medicine, specifically anatomy, presented serious problems due to the fact that throughout history it has been taught in the classroom by means of cadaveric dissection and when this ceased to be available, new methods arose through the use of digital resources to try to make up for the needs of the lack of dissection laboratories which lost a great deal of content in this restructuring, which have been improving with the passing of the courses taught and the development of new material that has been better adapted to the needs of the students. Discussion: The authors agree that in the future the best way to teach anatomy will continue to be face-to-face dissection without neglecting the strategies developed during this pandemic and to be taken if necessary to restructure curricula in the future to improve teaching.
Theoretical Design of Near-Infrared Tunable Surface Plasmon Resonance Biosensors Based on Gate-Controlled Graphene Plasmons
Authors: Xiao Yi , Cui Danting , Zhong Yongchun , Li Zhibin , Zhang Jun , Yu Jianhui
Published: November 2023

A tunable near-infrared surface plasmon resonance (SPR) biosensor based on gate-controlled graphene plasmons is investigated theoretically. The novel characteristics of chemical potential sensing make the proposed sensor promising in the application of ultra-sensitive and highly specific biosensing technology. The sensitivity of chemical potential sensing in wavelength interrogation mode can be calculated to be 1.5, 1.89, 2.29, 3.21, 3.73 and 4.68 nm/meV respectively at the central wavelength of 1100, 1200, 1310, 1550, 1700 and 1900 nm. The much smaller full width half maximum (FWHMs) comparing with that of 2D nanomaterial-enhanced metal SPR sensors indicates higher figure of merit. The sensitivity of chemical potential sensing in gate voltage interrogation mode also can be calculated to be 156.9822, 143.6147, 131.0779, 111.0351, 101.3415 and 90.6038 mV/meV respectively at the incident wavelength of 1100, 1200, 1310, 1550, 1700 and 1900 nm. It can be estimated theoretically that the limit of detection (LOD) in DNA sensing of the proposed sensor can reach femtomolar level and even attomolar level, comparable to and even lower than that of 2D nanomaterial-enhanced metal SPR sensors with AuNPs as a sensitivity enhancement strategy. The feasibility of preparation and operation of this new concept SPR biosensor is also analyzed and discussed.
Immunosenescence and Cytomegalovirus: Exploring Their Connection in the Context of Aging, Health, and Disease
Authors: Müller Ludmila , Di Benedetto Svetlana
Published: November 2023

Aging induces numerous physiological alterations, with immunosenescence emerging as a pivotal factor. This phenomenon has attracted both researchers and clinicians, prompting pro-found questions about its implications for health and disease. Among the contributing factors, one intriguing actor in this complex interplay is human cytomegalovirus (CMV), a member of the herpesvirus family. Latent CMV infection exerts a profound influence on the aging immune system, potentially contributing to age-related diseases. This review delves into the intricate relationship between immunosenescence and CMV, revealing how chronic viral infection im-pacts the aging immune landscape. We explore the mechanisms through which CMV can im-pact both the composition and functionality of immune cell populations and induce shifts in in-flammatory profiles with aging. Moreover, we examine potential role of CMV in such pathol-ogies as cardiovascular diseases, cancer, neurodegenerative disorders, COVID-19, and Long COVID. This review underlines the importance of understanding the complex interplay be-tween immunosenescence and CMV. It offers insights into the pathophysiology of aging and age-associated diseases, as well as COVID-19 outcomes among the elderly. By unraveling the connections between immunosenescence and CMV, we gain a deeper understanding of aging's remarkable journey and the profound role that viral infections play in transforming the human immune system.
Physician Burnout as Reflected by Patients – the Effect of COVID-19 on Patients’ Perspective
Authors: Tal Orna , Ravid Arnon , Bargil Shlomit , Epel Zaklin , Avdayev Mira , Bitan Michal
Published: November 2023

Physicians exposed to a risky environment experience burnout, which negatively impacts patient care, stress decreases compassion, harms patient-doctor communication and may jeopardize patient safety. Patients are directly exposed to their physicians' overload and can sense their exhaustion, making them a sensitive seismograph of burnout. This study aimed to compare patients' standpoints towards physicians' burnout before and during the COVID-19 pandemic, characterizing patients' perceptions according to the 4 components of burnout.

Two cross-sectional surveys (February-March 2018 and 2021) were conducted. 314 responders, 133 in 2018 and 181 in 2021. Physician burnout, accountability, empathy towards doctors ("mirror reflection") and the expected patient-doctor partnership were measured.

Patients' perception of physicians' burnout was significantly associated with urban community, education and religiosity. Perceived accountability was associated with female gender and education. Empathy was associated with employment and gender.

Patients described physicians' burnout as significantly higher prior to the COVID-19 pandemic. Physicians' accountability, empathy for doctors, and perceived partnership were more intense in 2021, implying that the emergency emphasized the physician's role and the patient-doctor relationship. Global disasters may have an unexpected positive effect on how patients understand the role and duty of physicians and the health system.
Association of WBC Levels With All-Cause Mortality in ICU Patients Receiving CRRT: A Retrospective Cohort Study
Authors: Huang Haowen , Huang Feng , Zhou Jie , Zhang Zhiqin , Ren Yuan , Chang Sansi , Xue Jun
Published: November 2023

Background

Acute kidney injury (AKI) is a common comorbidity in the intensive care unit (ICU), with higher mortality rate among those who receive continuous renal replacement therapy (CRRT). This study aimed to investigate the association of white blood cell (WBC) levels with all-cause mortality in AKI patients undergoing CRRT.

Method

We conducted a post hoc analysis of ICU patient data from multiple centers in Korea. First, the levels of WBCs were classified into four groups based on quartiles. Second, the relationship between different WBC levels and mortality was investigated with the Kaplan-Meier (K-M) survival curves, Cox proportional hazards model, and generalized additivity model (GAM). Finally, we used multiple imputation to avoid bias caused by non-randomized missing data. The endpoints were short-term (28 days) and long-term (90 days) mortality.

Result

In our analysis, a total of 1,100 ICU patients were included. Among them, 670 (60.90%) and 781 (71.00%) died within 28 and 90 days, respectively. K-M survival curves showed that patients with the lowest WBC levels had the highest risk of mortality for both outcomes. Adjusted multivariate Cox regression analysis confirmed that compared with the reference level (quartile 2), low WBC levels increased the risk of both 28-day mortality (quartile 1, HR = 1.43, 95% CI: 1.13–1.83, P = 0.004) and 90-day mortality (quartile 1: HR = 1.32; 95% CI: 1.05-1.66, P = 0.016). GAM analysis showed a non-linear, U-shaped relationship between pre-CRRT WBC levels and all-cause mortality (non-linear P < 0.05).

Conclusion

The baseline WBC level is an independent predictor of prognosis for ICU patients receiving CRRT. Patients in the lowest WBC quartile had the highest risk of all-cause mortality. These results provide further evidence that early observation and intervention may have a prognostic value for these high-risk patients.
Flame Chemistry in the ISO/TS 19700 Steady State Tube Furnace
Authors: Peck Gabrielle , Hayes Ryan
Published: November 2023

The steady state tube furnace (SSTF) (ISO/TS 19700) was used to assess the effects altering the reaction zone of a flame had on smoke toxicity measurements. The gas inlet of the apparatus was modified to allow for a mixture of nitrogen and air to be introduced into the system. The volume of air used in each test remained at 2 L min-1 , and additional volumes of nitrogen were varied between tests altering the total volume of gas used in the primary gas inlet. The chosen conditions were representative of under-ventilated flaming by using a restricted oxygen environment. The research shows that the increase in volume flow of gas over a sample increased the smoke toxicity of the materials tested (CO and HCN). When increasing the volume of the primary air-flow through the tube furnace, the flow causes thinning of the flame zone in the apparatus and results in gaseous species spending less time in the reaction zone, resulting in less time available for chemical reactions to occur. This resulted in less complete combustion occurring, and hence an increased yield of measured products of incomplete combustion (CO and HCN), and a decreased yield of products of complete combustion (CO2).
OPTIMALISASI PEMANFAATAN LMS UNJ PADA PROGRAM STUDI MANAJEMEN PENDIDIKAN FAKULTAS ILMU PENDIDIKAN UNIVERSITAS NEGERI JAKARTA
Authors: Fadholi Muhamad Fadholi , Zulaikha Siti , Kurnia Robby Dimas
Published: November 2023

Abstrak : Universitas Negeri Jakarta telah mengembangkan learning management system seiring dengan pergeseran paradigma baru Pendidikan di era digital. LMS UNJ memfasilitasi para dosen dan mahasiswa untuk dapat melaksanakan pembelajaran jarak jauh secara asynchronous. Dalam upaya memaksimalkan pemanfaatan Learning Management System UNJ Program Studi Manajemen Pendidikan Fakultas Ilmu Pendidikan Universitas Negeri Jakarta, penelitian saat ini fokus pada peningkatan penggunaan Learning Management System (LMS UNJ). Metode yang digunakan adalah studi kasus dan analisis hasil melalui diskusi dan wawancara pakar. Analisis data menggunakan analisis tulang ikan dan menggunakan analisis APKL dan analisis SWOT. Beberapa faktor yang menjadi penyebab rendahnya pemanfaatan LMS yaitu : Material, Belum ada kebijakan yang mewajibkan penggunaan LMS bagi Dosen; Methode, Belum optimalnya koordinasi berbagai pihak; System, Belum adanya Tim Pendampingan Penggunaan LMS Prodi; Man, Rendahnya motivasi dalam penggunaan LMS. Gagasan pemecahan isu yang menjadi peringkat pertama yaitu “ Pembentukan Tim pendampingan dalam penggunaan LMS oleh Dosen Program Studi Manajemen Pendidikan Fakultas Ilmu Pendidikan Universitas Negeri Jakarta”. Selanjutnya dicarikan kegiatan-kegiatan kreatif dengan menggunakan Analisis SWOT antara lain : Melakukan konsultasi dengan Ketua Program Studi terkait Pemanfaatan LMS UNJ pada Program Studi Manajemen Pendidikan; Melakukan konsultasi dengan Tim Pusat LMS terkait mekanisme penggunaan; Pembentukan Tim Pendamping penggunaan LMS; Sosialisasi dan pembagian tugas Tim Pendamping penggunaan LMS; Pembuatan buku saku panduan penggunaan LMS; Pembuatan video tutorial penggunaan LMS; Melakukan pendampingan dalam penggunaan LMS; Melakukan monitoring, dan evaluasi hasil pendampingan penggunaan LMS.
Restoran Müşterilerinin Geri Bildirimleri Üzerinde Hedef Kategorinin Tespiti ve Hedef Tabanlı Duygu Analizi
Authors: TUNA Murat Fatih , POLATGİL Mesut , KAYNAR Oğuz
Published: November 2023

Günümüzde tüketicilerin ürün ve hizmetler konusunda fikir paylaşabilecekleri birçok mecra bulunmaktadır. Bu fikirler, geri bildirimin yapısı itibariyle genellikle metin formatındadır. Duygu analizi, metin tabanlı bilgi kaynaklarında son yıllarda önem kazanan bir konudur. Daha hassas bir duygu analiz türü olan Hedef Tabanlı Duygu Analizi bir cümle içerisinde hedef terim, hedef kategori ve duygu sınıfının belirlenmesi işidir. Bu çalışmada Semeval ABSA yarışmasında yarışmacılara sunulan restoran müşterilerine ait yorumlardan oluşan bir veri seti kullanılmıştır. Word2vec, Glove, Fastext ve Bert yöntemleri kullanılarak veri seti üzerinde hedef terim, hedef kategori ve duygu sınıfının belirlenmesi işlemi gerçekleştirilmiştir. Kelimeyi vektörü ile cümle vektörünün birleştirilmesi ABSA için sınıflandırma başarısını artırıp artıramayacağı hipotezi test edilmiştir. Dört farklı vektör yöntemi ile yapılan sınıflandırmada hedef terim için 0,78 F1 skoru ile Fasttext yöntemi, hedef kategori için 0,57 F1 skoru ile Fasttext ve duygu sınıfı için 0,76 F1 skoru ile Bert yöntemi en başarılı sonuçları vermiştir. Bu sonuçlar literatürde farklı veri setleri ve farklı diller için yapılan çalışmalarla kıyaslanmıştır. Sonuç olarak Fasttext ve Bert temsil yöntemlerinin hedef tabanlı Türkçe dilindeki metinlerin duygu analizinde başarılı sonuçlar verdiği tespit edilmiştir.
Rotorcraft Resupply Site Selection (RRSS) v1.0 and the USACE Model Interface Platform (UMIP) : documentation and user’s guide
Authors: Brown Dustin , Hiett Matthew , Cook Samantha , Pasley Dylan , Pham Melissa , LeGrand Sandra
Published: November 2023

This research effort aimed to create an operational prototype of the Geomorphic Oscillation Assessment Tool (GOAT) v1.0, developed by the US Army Engineer Research and Development Center, as a part of the US Army Corps of Engineers’ Model Interface Platform (UMIP). This platform is a web-based software that allows for easy and rapid construction and deployment of spatial planning and analysis capabilities. The prototype tool in UMIP represents the science embedded in GOAT while providing a user-friendly interface for interaction and spatially referenced result viewing. It also includes user access control, data storage, and integration with a long-term data management system, enabling users to access, share, and interrogate past analyses through profile management and result persistence. The prototype tool incorporates surface roughness into terrain suitability assessment tools used in the forward arming and refueling point (FARP) site-selection process.
Increasing the Oil Production Coefficient of Oil and Gas Reservoirs Operating in The Dissolved Gas Mode
Authors: Mammadova G. G. , Abbasova S. V. , Abbaszade E. E.
Published: November 2023

Depending on the daily gas production, the character of the pressure dynamics in the field and the movement of the gas-water contact should be determined in order to provide a project for the development of gas fields. The change of those factors mainly depends on the regime of the bed.

In the dissolved gas regime, the only driving force is the elastic energy of gas dissolved in oil.

When gas-cut liquid (oil) moves in the formation, the relative permeability of the formation for gas and oil depends on its oil saturation factor. The saturation coefficient depends on the amount of oil and gas extracted from the reservoir and reservoir pressure. Therefore, since the movement under the dissolved gas drive mode is complex and undetermined, approximate methods to solve hydrodynamic problemsare used.
Multizone Open Hole Gravel Pack Completion with Selective Production Capability in ACG Field
Authors: Susilo Yoliandri , Dharmadhikari Khsitij , Taha Sherif , Ismayilova Ayisha , Guliyev Ilkin , Jafarli Zaur , Kerimov Natig , Kerimova Ravana , Veliyev Samir , Whaley Kevin , Wallace Alex , Mammadov Elvin , Foster Mike
Published: November 2023

Azeri-Chirag-Gunashli (ACG) is a giant field located in the Azerbaijan sector of the Caspian Sea. The major reservoir zones are multi layers sandstone formations and weakly consolidated where Open Hole Gravel Pack (OHGP) completions have become the standard design for production wells. To date more than 170 high rate OHGPs have been completed that are producing comingled from multi-layered sandstone formation.

As the field matures, problems such as premature water and gas breakthrough are becoming increasingly common requiring the completion system to be inherently flexible to address such issues. The Multi Zone OHGP concept design has been developed to manage this increasing reservoir management complexity. Zonal isolation and selective production capability are achieved by installing combination of multiple Screen PBR and/or open hole packer in combination with seals unit and mechanical sliding sleeve in the inner string at the intermediate completion, and Inflow Control Valve (ICV) at the upper completion.

To date, two Multizone OHGP wells have been completed successfully. The Screen PBR system has proved to provide effective zonal isolation or baffling. This system allows flexibility to deal with unexpected reservoir surprise (wet/gas zone) that requires zonal isolation on day-1 without major changes in completion design, thus reducing rig time & operational cost.

This paper discusses design, execution, and result of the first two Multizone OHGP completions installed in the ACG Field. Installing multiple Screen PBR to provide baffling against crossflow is a novel concept. This technique does not compromise gravel pack quality or sand control integrity. The success seen with this technique makes a compelling case to further develop the concept on a larger scale in ACG and maximize field recovery.
Wellhead and Valve Technology Principles, Problems and Practices
Authors: Mugharbil M. K. , Mirza A. A.
Published: November 2023

Wellheads are complex equipment that connect the wellbore to the surface and execute multiple functions, such as pressure containment, load support, annulus access and wellbore sealing. These functions are essential for the safe and efficient operation of the well. The design of wellheads is based on the well conditions and operational requirements, such as pressure, temperature, flow rate, corrosivity, and service life. The wellhead design must comply with the relevant standards and specifications to ensure the quality and reliability of the device. The wellhead design must also use appropriate materials, dimensions and configurations to handle the expected loads and stresses that arise from the weight of the tubing, casing and equipment, as well as from the internal and external pressures and temperatures.

The effective management of fluid flow in or out of the wellbore is dependent upon the function of the wellhead valves, which serves as a crucial regulatory mechanism. They must be inspected and maintained regularly to ensure their functionality and integrity. Valve failures can have various causes, such as corrosion, erosion, debris, thermal expansion or improper operation. A prevalent issue affecting valves is referred to as the "stuck valve," which happens when the valve stem or disk cannot move freely due to friction or obstruction. The occurrence of a stuck valve has the potential to cause significant operational delays, safety hazards, and environmental risks.

When addressing a malfunctioning valve, a variety of tools and procedures may be implemented depending on the type and location of the valve. Some of the tools that can be used are valve wrenches, valve actuators, valve reamers and valve pullers. These tools can help to loosen or remove the stuck valve by applying force or torque to the valve stem or disk. Some of the procedures that can be used are applying lubricants or penetrants, tapping or heating the valve body, reaming the valve guide or removing the valve from the wellhead.

This paper aims to discusses the design, function and maintenance of wellheads and wellhead valves. It explains how wellheads and valves are essential and describes the common problems that can affect wellheads and valves, such as stuck valve, and how to fix them using different tools and procedures. It concludes by emphasizing the importance of wellhead and valve performance and safety for the well and the environment.
Integration of RCA and SCAL with Image Logs Leads to a Unique High Resolution Technique to Evaluate Laminated Clastic Reservoirs of Black Sea, Turkey
Authors: Isdiken Batur , Dutta Tanmoy , Yüce Ugur , Kiliç Mert
Published: November 2023

Deep water gas reservoirs in the Western Black Sea consist of highly laminated heterogeneous and complex sand/shale sequences. A petrophysical volumetric model was created by combining the triaxial induction resistivity data with the Thomas-Stieber (1975) sand-shale volumetric model to better evaluate low-resistivity pay zones in highly laminated shaly sand sequences. Although the results from this method are volumetrically almost correct, they are quite insufficient to deal with the distinctions between finely laminated sand, silt and shale.

In order to calculate volumetric petrophysical parameters, such as porosity and water saturation, which are linearly or non-linearly derived from the sand/shale fraction of the rock volume, accurate measurement of laminar shale volume in shaly sand sequences is an essential first step. Even though GIIP does not change much, the volumetric method presents a particular challenge in terms of continuity of gas bearing layers when there is water located in both above and below the gas-bearing sands. High-resolution wireline image tools with a vertical resolution of 0.5 cm can capture bed thicknesses and boundaries of these sand layers, enabling the determination of the net to gross sand ratio. However, imaging technologies by themselves are unable to determine precise porosity and water saturation. By statistically evaluating extensive volumes of core data (RCA and SCAL) and image logs, a new high-resolution methodology offers a simple and innovative method to compute porosity and saturation.

A partially cored reservoir section example is used to demonstrate the entire technique. This approach does not require standard log deconvolution. The uncertainty has been understood after comparing the results between the volumetric model and high-resolution model. By using the methods described in this paper, it is possible to position the perforation interval more precisely and reduce uncertainty for volumetric petrophysical calculations in complex highly laminated clastic reservoirs. The results show that low resistive laminated clastic reservoirs can be extremely productive, showing reservoir quality comparable to that of productive thick sands.
Using Deep Learning Algorithms to Monitor Well Performance and Restore Well Rate Dynamics
Authors: Yudin E. , Andrianova A. , Isaev D. , Kobzar O. , Mosyagin G. , Gudilov M. , Polinov M. , Shestakov A. , Ganeev T.
Published: November 2023

The main purpose of the work is to create a system for effective monitoring of well operation by analysing the data coming from sensors. This algorithm is focused on automation of intraday monitoring of unstable wells, as well as search for deviations in operation of wells and downhole equipment.

This paper applies an algorithm to reconstruct flow rate dynamics in an unstable wells based on deep learning models, specifically using a neural network model that learns from the large amount of information coming from telemetry sensors installed on wells and downhole equipment. In addition, static well data, such as well construction, PVT properties, and various data by results of well surveys, are also used. This approach allows all information from all wells in a particular field or group of fields to be used, and also allows the model to find complex relationships between parameters that sufficiently characterise well performance.

For wells with unstable working conditions, the approach presented in the work has a significant advantage, as it allows to form a sample with participation of a large number of wells on different regimes within the same method of exploitation, taking into account intentional or unintentional changes in operating regimes on these wells. The implementation of this algorithm achieved a convergence for unstable wells of up to 85% compared to the standard algorithms, which did not exceed 75% convergence. Despite the statistical model, this algorithm absorbed and summarised the vast expert experience of specialists, based on which the feature space was built, additional calculated parameters were added and parameters that did not affect the dynamics of well operation were removed from the sample. This algorithm has been successfully tested on gas lift unstable wells and has been translated to other artificial lifting methods, including complex periodic modes on ESP wells and wells operating modes under annular flow conditions. This algorithm helps field engineers solve challenges related to intraday analysis of well operations, such as regime control, wellbore understanding of deviations from planned operation modes, anomalies in operation and fast solution of production allocation problem.

The approach of building a general statistical model, compared to standard models that focus on knocking down each individual well, is a leap forward in the development of intraday stock analysis. With a timely trained model, the analysis is done extremely quickly on the entire field at once, and more importantly, quite efficiently. Where simple standard modeling approaches do not allow reproducing nonstationary processes with sufficient accuracy or take large amount of computing resources, the neural network is able to automatically filter data from all well telemetry, generalize features and identify complex patterns in the well operation behavior.