bluuebunny/crossref_metadata_2025 huggingface dataset:
Características de pacientes obstétricas admitidas em Unidade de Terapia Intensiva
Authors: Araújo Patrícia Saraiva , Saraiva Priscila Ferreira , Oliveira Gilson Rogerio Becil de , Oliveira Jiovania Barbosa Maklouf de
Published: April 2023

Na assistência à saúde da mulher, é necessária atenção especial durante o ciclo gravídico-puerperal, quando esta pode desenvolver diversas complicações obstétricas e não obstétricas que podem requerer internação em Unidade de Terapia Intensiva (UTI) (FERRACINI et al., 2017). O período gestacional é um fenômeno marcado por alterações sistêmicas e fisiológicas ​​ que para a maioria das mulheres se desenvolve sem grandes intercorrências. Entretanto, há gestantes que por condições genéticas ou por situações traumáticas tendem a ter maiores chances de desfechos desfavoráveis, tanto para o feto quanto para a genitora. Os dados indicam que as internações em UTI periparto estão aumentando em frequência com um número notável de mulheres afetadas, que comumente apresentam múltiplas comorbidades, despertando um alerta para o risco de morte materna, ou seja, aquela que ocorre durante a gestação ou dentro de 42 dias após o término, devido a qualquer causa relacionada à gravidez ou por medidas relacionadas a ela (SILVA et al., 2020; FARR et al., 2017; SAINTRAIN et al., 2016). Esse é um grave problema de Saúde Pública, pois evidencia o nível de desenvolvimento de uma população. Cerca de 99% de todas as mortes maternas ocorrem nos países em desenvolvimento. A maioria destes óbitos poderia ser evitada se os sistemas de saúde permitissem o acesso das usuárias a serviços com qualidade. No Brasil, aproximadamente 92% das mortes maternas são consideradas evitáveis, e ocorrem, principalmente, por causas como hipertensão, hemorragia ou infecções puerperais. A Organização Mundial da Saúde (OMS) considera que essas causas são evitáveis, seja por ações relacionadas ao acompanhamento no pré-natal, ao atendimento durante o parto, ou por ações durante o puerpério (SILVA et al., 2020; MENEZES et al., 2020; SAINTRAIN et al., 2016). Segundo Menezes et al., (2020), a falta de investimento em saúde pública e a desigualdade social são fatores que afetam diretamente a saúde das gestantes e puérperas, que dependendo da localização regional, o acesso aos serviços de saúde são baixos ou inexistentes. Assim como as complicações médicas decorrente de um mau acompanhamento durante a gestação, representando um desafio para os médicos na UTI que muitas vezes necessita do envolvimento de uma equipe multidisciplinar (LATAIFEH et al., 2010). Diante disso, o objetivo deste estudo é identificar as características de pacientes obstétricas admitidas em Unidade de Terapia Intensiva.
Relationship between melatonin hormone and lipid profile of patients with myocardial infarction in Thi-Qar Governorate
Authors: Sami Daiekhmin  , Khalid  G.  Al-Fartosi
Published: April 2023

The present study was designed to detect the relationship between melatonin hormone and lipid profile in patients with myocardial infarction (MI) .The results showed that there was no significant difference in the level of melatonin in all MI patients, men and women patients compared with the control group. Additionally the results indicated that there was no significant difference of  melatonin in men patients compared with women patients. Moreover, results indicated that there was a significant increase  in levels of TG and LDL in patients compared with the control group. The results showed that there was no significant difference in level of TC, HDL and VLDL in MI patients compared with  control group. Meanwhile, the results indicated that there was no significant difference in level of TC,HDL, TG, LDL and VLDL in women  patients and men patients compared with control group. Furthermore the results showed that there was no significant difference in the level of TC, TG, VLDL and  HDL in men and women patients when they compared between them, while showed significant increase in the level of LDL  in women patients compared with men patients.
Hệ thống trả lời tự động trong điều kiện tài nguyên hạn chế
Authors: Minh Lê Hà , Trường Trần Minh , Nhựt Phạm Minh , Quân Vũ Hải
Published: April 2023

The Interactive Voice Response (IVR) system that has embedded spoken language processing, is emerging as one of the most prominent research areas in the world. For the purpose of constructing an IVR system for Vietnamese, this paper aimes to propose a spoken dialog system architecture with four components: The Automatic Speech Recognition, The Text-to-Speech Synthesiser, The Dialog Manager and The Telephone Network Interface. This architecture allows to construct a new IVR system for any domain more rapidly, effectively with low cost.
Thuật toán lập lịch luồng công việc trong môi trường đám mây điện toán dựa trên chiến lược tối ưu bày đàn
Authors: Toàn Phan Thanh , Lộc Nguyễn Thế
Published: April 2023

Workflow is the series of tasks that are necessary to complete a goal. Workflow scheduling, the most important problem which the cloud controllers deal with, focuses on mapping and managing the execution of tasks on servers so that the expenses is the minimum. In this paper, we build a workflow scheduling framework which run on the cloud computing environments. In order to solve the mentioned problem, we propose a PSO-based algorithm for scheduling workflow tasks in the cloud environments so that the total cost is minimized.
Value creation by converting pulp mill flue gas streams to green fuels
Authors: KARJUNEN HANNU , TYNJÄLÄ TERO , KUPARINEN KATJA , VAKKILAINEN ESA , JORONEN TERO
Published: April 2023

Climate change mitigation induces strong growth in renewable electricity production, partly driven by shifts in environmental policies and regulation. Intermittent renewable electricity requires supporting systems in the form of sustainable hydrocarbon chemicals such as transportation fuels. Bulk chemical production fits well into a pulp mill environment, given their large volumes, stable operation, and ample supply of biomass-based carbon feedstock in the form of flue gases. Until now, the utilization of the flue gases from conventional operation of a pulp mill has received little attention. Harnessing these flue gases into usable products could offer additional value to mill operators, while also diversifying their product portfolio. However, electricity-based fuels and products require extra energy in the conversion step and may not be commercially competitive with current fossil products under the current regulation. There might also be uncertainties about future commodity prices. Thus, the objective of this study is to estimate the economic competitiveness and the added value of selected side products that could be produced alongside conventional pulp and paper products.
A typical modern pulp mill is modeled in different product configurations and operational environments, which allows testing of various development paths. This illustrates how the overall energy and mass balance of a pulp mill would react to changes in different final products and other parameters. The focus of the study is in synthetic methanol, which is produced from flue gases and excess resources from the mill, with minimal interference to the pulping process. The results aid in assessing the necessity and magnitude of a premium payment for subsidizing green alternatives to replace current fossil fuels and chemicals. Additionally, the results function as an indicator of the development state of the pulp and paper industry in the turmoil of climate change regulation. The results indicate that pow-er-to-X systems offer one more viable pathway alternative for broadening the product portfolio of the pulp and paper sector, as well as opening new flexibility measures and services to grid stabilization. Market conditions were found to have a significant impact on the perceived profitability.
Using Google Meet in Teaching English at University: An Insight from Lecturers’ Perspectives
Authors: Vo Thanh , Dung Cao Thi Phuong , Tong Nguyen Le Ba , Vy Vo Thi Mai
Published: April 2023

Under the influence of the Covid-19 pandemic, most education and training activities throughout the world have quickly switched to an online mode or, recently, hybrid mode, thanks to various available online conferencing platforms. Among these, Google Meet was one of the most popular platforms for emergency remote teaching in Vietnam. However, in its actual usage, Google Meet still puts numerous limitations on the online teaching and learning process, especially for English courses. In this study, lecturers' perceptions of using Google Meet for English courses were deeply explored through a survey and semi-structured interviews. The findings show discrepancies in participants’ perspectives of using Google Meet related to the app’s functionality and its support for synchronous teaching and learning. This research can provide insights into the use of Google Meet in English online learning in Vietnam’s tertiary education and serve as recommendations for improving the use of online conferencing platforms in post-pandemic teaching and learning of English.
Addressing Crimes of Passion with the Deep-Self View of Moral Responsibility
Authors: Parish Elijah
Published: April 2023

In this paper, I summarize and object to the “deep-self” view of moral responsibility as laid out by Susan Wolf in “Sanity and the Metaphysics of Responsibility.” My objection centers on how our intuitions regarding crimes of passion conflict with the conclusions drawn by the deep-self view. I then proceed to sketch out three possible responses which can be made by an adherent to the deep-self view and make my recommendations on how such adherents should proceed in further understanding moral responsibility.
Escaping Self-Sacrifice
Authors: Daley Aniyah Marie
Published: April 2023

This work “Escaping Self-Sacrifice: Changing Black Women’s Relationship with Servility” is a deep dive into Lisa Tessman’s Burdened Virtues. Addressing the idea of servility as a burdened virtue that requires self-sacrifice, I strive to reevaluate the traditional role Black women have in their families and within their communities. I argue that the demands of Black women are so excessive that they have lost touch with their self-regarding virtues, causing them to have ethical imbalances within themselves. This work is a part of an ongoing attempt to counter oppressive practices with joy as a form of resistance. I use the idea that simply existing is enough for Black women without the added burden of taking care of everyone else.
Clinical Feature and General Management of Post-Hemorrhagic Hydrocephalus in Premature Infants
Authors: Ichi Shunsuke
Published: April 2023

Recently, the survival of the high-risk population of preterm infants has steadily improved, and the severity of prematurity is a growing threat of gestational-age-related fatal conditions. Posthemorrhagic hydrocephalus (PHH) is the most common but serious neurological complication in premature infants, which can have life-threatening consequences during the acute phase in the neonatal period and life-long psychomotor and cognitive sequelae in their later life. Although neonatologists, pediatric neurologists, and pediatric neurosurgeons have investigated a diversified strategy for several decades, a consensus on the best management of PHH in premature infants still must be reached. Several approaches have tried to reduce the incidence of intraventricular hemorrhage (IVH) and mitigate the effect of IVH-related hydrocephalus. This paper reviews and discusses the clinical feature of PHH in premature infants, general/nonsurgical management of prematurity for IVH prevention, and posthemorrhagic management, and how and when to intervene.
THE CONCEPTUAL MODEL OF PROFESSIONAL GROWTH OF OFFICERS OF NATIONAL GUARD OF UKRAINE
Authors:   The National academy of hte National Guard of Ukraine, Holovnia A.
Published: April 2023

The variant of conceptual model of professional growth of officers, its impact on the entire system of professional development of the National Guard of Ukraine has been considered. Theoretical and practical components of professional growth that satisfy the requirements of modern pace of development has been implemented. The model is presented as the result of solving the contradictions between the actual components of the system and the external environment that is not satisfied with the functioning of it. The essence of components of the model of professional growth of officers, their correlation and compliance with the requirements concerning the combination of formal higher education, informal military education and training on the standards of The North Atlantic Treaty Organization has been revealed. The place and the role of the model of professional growth of officers has been analyzed. Each of the elements of the model proposed is based on relevance, usability and accessibility. The implementation of the background will be provided by working motivation system that operates focusing on the present and the experience of leading countries of the world. The features of the influence of correct support and control have been determined, it provides for intermediate with reasoned change of inefficient components, and current, that ensures constant monitoring and rapid reaction where it is necessary. The efficiency of the model of professional growth in action on an officer as an individual personality that requires in self-organization and it is the component of system has been substantiated. This statement has been characterized as dominant determining the further direction of the study.
ANALYSIS OF SOURCES OF MILITARY EMERGENCIES AND THEIR CONSEQUENCES
Authors:   State Scientific Research Institute of Armament and Military Equipment Testing and Certification (on Research), Ivanets M. , Hordiienko A. ,   State Scientific Research Institute of Armament and Military Equipment Testing and Certification (on Research), Horielyshev S. ,   The National academy of hte National Guard of Ukraine
Published: April 2023

During the last decades, the world historical situation has fundamentally changed, humanity has entered the nuclear-space age. The development of civilization and society could not exclude wars and military conflicts as a means of forceful resolution of interstate, religious, ethnic and other contradictions. The way out of conflict situations with the help of weapons remains a distinctive feature of the modern era. The achievements of science and technology today are aimed not only at the development of modern production, improvement of working conditions and welfare of citizens, but also at the development of the latest types of weapons and ammunition, which increases the risks of emergency situations due to their use. Emergency situations of a military nature are associated with the consequences of the use of weapons of mass destruction or modern conventional means of destruction, during which secondary factors of damage to the population arise as a result of the destruction of nuclear and hydroelectric power plants, warehouses and storages of radioactive and toxic substances, waste oil products, explosives, highly toxic substances, toxic waste, transport and engineering communications. As a result of emergencies of a military nature, emergencies of man-made, natural, social nature, mass deaths of people and animals may arise. The dangerous sources of emergencies of a military nature include: weapons themselves, extraordinary unsanitary conditions during hostilities (a large number of corpses, disruption of the normal operation of various communal services, disruption of water supply and sewage systems, insufficient medical care, occurrence of epidemics), complex ecological and the man-made situation, the presence of high-risk enterprises (chemical enterprises, nuclear power plants, oil refineries) and the like. The article examines the characteristic features of possible modern wars and conflicts, analyzes the sources of emergency situations of a military nature, their features and possible consequences for the population and the territory of the state. In addition, an analysis of the specifics of the terrorist nature of Russia's war against Ukraine and the consequences of armed aggression for the country's territory, population, and economy was carried out.
IDENTIFICATION OF THE FACTORS OF THE OPERATIONAL SITUATION DURING THE PARTICIPATION OF THE NATIONAL GUARD GROUP OF UKRAINE IN THE LIQUIDATION OF AN EMERGENCY SITUATION AT A HYDROTECHNICAL STRUCTURE
Authors:   The National academy of hte National Guard of Ukraine, Morozov I. , Rybka Ye. ,   National University of Civil Defense of Ukraine, Tsapok V. ,   Training center of the National Guard of Ukraine on weapons
Published: April 2023

Natural disasters and catastrophes on our planet take human lives every year, lead to the destruction of cities and industrial facilities, causing great damage to the objects of the national economy and the environment. Thousands of potentially dangerous objects are located on the territory of Ukraine, depending on the location of which the country is divided into regions with a certain level of risk, and accidents can cause catastrophes of an international scale. Today, there is a need to identify the factors of the operational situation that will affect the functioning of the National Guard of Ukraine group under the specified conditions. The analysis of previous studies showed that the isolation of external factors of the environment in various systems is carried out by isolating only those factors that correspond to the purpose of the system itself. One of the more complex man-made disasters in Ukraine, which will require the prompt use of the National Guard of Ukraine and for all functional elements of the unified state system of civil protection of the population and territories, can be an accident at hydrotechnical structures. The grouping of the National Guard of Ukraine is considered from the standpoint of system analysis, which allows to assess the environment in which it is located, to distinguish internal and external factors (operational situation) of such an environment. It is external factors that form the main load that can affect the grouping of the National Guard of Ukraine as a system during participation in the liquidation of the consequences of disasters at hydrotechnical structures, since internal factors are unimportant in view of the rational construction of the system (grouping). Further research can be aimed at presenting the external factors of the operational situation in a formalized form and obtaining their quantitative value.
SUBSTANTIATION OF REQUIREMENTS FOR PROVISION OF INFORMATION-PSYCHOLOGICAL SECURITY OF SERVICEMEN OF THE NATIONAL GUARD OF UKRAINE AT THE STAGE OF SERVICE (COMBAT) MISSIONS PERFORMANCE
Authors:   The National academy of hte National Guard of Ukraine, Tovma M. , Tovma I. ,   The National academy of hte National Guard of Ukraine, Kapliuchenko O. ,   The National academy of hte National Guard of Ukraine
Published: April 2023

The enhanced extreme conditions of servicemen and the National Guard of Ukraine teams, units and formation activities while performing service tasks and combat missions depends on psychogenic factors which lead to disorder of psychological functions as well as to mental disorder. The impact of psychogenic factors typically manifested in such kind of phenomena: loss of ability to orient in situation; unconscious confused behavior; loss of skills in use of weapons; loss of professional qualities; negative individual emotions, moral and legal instability, which lead to cases of antisocial behavior and, sometimes � to criminal behavior. The mentioned above is also impacted destructively by information-psychological factor, which is conducted by introduction of destructive information into servicemen?s both conscious and subconscious mind which leads to distorted perception of reality and inadequate behavior of a serviceman. The introduction of destructive information also impact on group both conscious and subconscious mind which leads to changes into group psychology and collective behavior which decrease the effectiveness of special operation and represented by ineffective activities both a serviceman and a unit related to mission and task compliance and combat actions as a result. Development of protection mechanisms is quite long and hard process for an individual, which makes the issue of an individual?s protection from negative information-psychological impact actual. In particular, it is fully concerns to servicemen and military units of the National Guard of Ukraine while performing service tasks and combat missions.
Üniversite Öğrencilerinin Serbest Zaman Doyumu ve Dijital Oyun Bağımlılık Düzeyleri Arasındaki İlişkinin İncelenmesi
Authors: Satılmış Sinan Erdem , Öntürk Yavuz , Özsoy Damla , Yaraş Abdurrahman
Published: April 2023

Araştırmanın amacı, üniversite öğrencilerinin serbest zaman doyumu ve dijital oyun bağımlılık düzeyleri arasındaki ilişkinin incelenmesi ile bazı demografik değişkenler açısından karşılaştırmanın yapılmasıdır. Araştırmanın evrenini, Yalova Üniversitesinde eğitim-öğretimine devam eden öğrencilerin arasından kolayda örneklem yöntemi ile seçilen ve gönüllü katılım sağlayan 195 kadın ve 246 erkek olmak üzere toplamda 441 kişi oluşturmaktadır. Katılımcılara kişisel bilgi formu ve verilerin toplanması amacıyla “Serbest Zaman Doyumu Ölçeği” (SZDÖ) ve “Üniversite Öğrencileri için Dijital Oyun Bağımlılığı Ölçeği” (ÜÖ-DOBÖ) uygulanmıştır. Elde edilen verilerin istatistik analizlerinde yüzde, frekans, aritmetik ortalama, Bağımsız Gruplar T Testi ve Pearson Korelasyon Testi kullanılmıştır. Elde edilen bulgular doğrultusunda, SZDÖ’nün ÜÖ-DOBÖ ile arasında negatif yönde düşük düzeyde anlamlı bir ilişki olduğu görülmüştür. Sonuç olarak üniversite öğrencilerinden oluşan örneklem grubunun yüksek düzeyde serbest zaman doyumu olduğu, düşük düzeyde dijital oyun bağımlısı olduğu tespit edilmiştir. Ayrıca katılımcıların serbest zaman doyumları arttıkça dijital oyun bağımlılık seviyelerinin azaldığı belirlenmiştir.
YAPI-EYLEM ETKİLEŞİMİNDE DİJİTAL SOSYAL AĞLARIN YENİDEN ÜRETİMİ: GİDDENS VE BOURDİEU SOSYOLOJİSİ ÇERÇEVESİNDE DİJİTAL SOSYAL AĞLAR ÜZERİNE BİR DEĞERLENDİRME
Authors: ÖZDEMİR Murat
Published: April 2023

Dijital sosyal ağlar, gündelik yaşamda gerçekleşen iletişimsel eylemlerin ve pratiklerin icra edildiği bir sosyalleşme aracıdır. Bireyselleşme ve toplumsallaşma aracı olan dijital sosyal ağlar, sahip olduğu etkileşim ve içerik üretme özellikleriyle dijital bir sosyal yapı olma özelliği taşımaktadır. Bireysel ve kolektif etkileşimlerle işlevselleşen bu ağların oluşumu, genellikle yapısal özellikleri ve toplumsal etkileri çerçevesinde incelenmiştir. Bu noktadan hareketle dijital sosyal ağların yapısı ve oluşumunu yapı-eylem teorileri perspektifinden tartışmak, toplumsal süreçlerin ve sosyal pratiklerin bütüncül bir biçimde anlaşılır kılınmasını sağlayabilmektedir. Bu bağlamda toplumsal eylem ve pratik süreçlerini yapı-eylem düalizmine düşmeden açıklamaya girişen Anthony Giddens’ın yapılaşma teorisi ve Pierre Bourdieu’nün pratik teorisi, içerisinde bulundurdukları benzer kavramsal setlerle yeni toplumsallaşma aracı olan dijital sosyal ağların yapısını ve oluşumunu açıklama potansiyeli taşımaktadır. İlgili alanyazın tarandığında Giddens ve Bourdieu sosyolojisini dijital sosyal ağların oluşum ve yapısını teorik düzlemde inceleyen herhangi bir çalışmaya rastlanılmamıştır. Çalışmanın amacı, dijital sosyal ağların güce sahip faillerin eylemliliklerinin sonucunda üretilen/yapılandırılan bir yapı/alan olduğunu entegratif sosyal kuram olarak nitelendirilen Giddens’ın yapılaşma ve Bourdieu’nün pratik teorisi bağlamında tartışmak ve ilgili literatürde yeni bir tartışma zemini hazırlamaktır. Çalışma sonucunda dijital sosyal ağların, toplumsal yapıların üretimi ve faillerin istendik sonuçlara ulaşma çabasıyla yeniden üretildiği ortaya konulmuştur.
Effect of the Economic Level on the Satisfaction of Friendship among Older adults: Focusing on Gender Comparison of Couple
Authors:   The Korean Society of Culture and Convergence, Ryu Juyeon , Kim Soojin
Published: April 2023

The purpose of this study was to examine the effect of the economic level of the elderly on satisfaction of friendship and compared gender differences. This study analyzed 1,074 male and 851 female aged over 65 years using the 7th Korean Retirement and Income Study. For the data analysis, STATA 14.0 statistics program was used to conduct descriptive statistical analysis, t-test, and multiple regression analysis. The houshold income level and Independence of elderlies had a positive impact on friendship satisfaction. The analysis results by gender showed that, for male, economic independence and for female, household income level had a positive impact on friendship satisfaction. This result indicated that the social expectation according to the gender of the elderly generation made a difference in the participation in economic activities. Accordingly, the importance of economic independence that was affected by the income source, etc. was different between the two genders. Based on these results, this study proposed the need to not only preserve the income of the elderly couple as a single household unit but also carefully consider the psychological aspect according to their genders.
Neorealist Analysis of Security Dilemma in Cyberspace; A Quantitative Study
Authors: Arslan Ahmet Selçuk
Published: April 2023

Two crucial factors urged IR academia to account for state behaviour in cyberspace; one is the increasing volume of cyber attacks, and the other is the raising scale of damage induced by these attacks. This has brought a series of initiatives to appeal to the grand theories of IR so as to scrutinize state behaviour in depth in terms of securitization and militarization of the cyberspace. Subscribing to the same pattern of endeavor, this work intends to contribute to IR academia by putting forth a neorealist analysis of state behaviour in cyberspace by relying on quantitative methods. The linear regression conducted by using a dataset consisting of 8,991 samples indicates that as states build more cyber security capacity, they become more tended to execute disruptive actions against other states in the cyberspace. Even after reinforcing the model with three additional control variables, the model yielded highly statistically important results.
HISTORY OF KRAV MAGÁ IN AMAPÁ FROM THE ORAL REPORT OF A MASTER
Authors: Souza Wesley Borges de , COSTA ALISSON VIEIRA , Dias Marcela Fabiani Silva
Published: April 2023

This study aims to reveal the arrival of Krav Magá in the State of Amapá, record dates and precursors of the modality, as well as describe the contemporary aspects of this self-defense system. Krav Magá is an Israeli self-defense system, created by Imi Litchenfeld in the 1940s. In Brazil, this system began in 1990, in Rio de Janeiro, and from then on it expanded throughout the Brazilian states. This research with a qualitative approach used the methodology of oral history, having as a methodological instrument a semi-structured interview, in which the subject of the research was one of the first practitioners in Amapá. After carrying out this research, there is – at the time – an army corporal as the initiator of Krav Magá in Amapá, around the 2000s. After the introductory process of Krav Magá, who continued the work with the modality was Sandro Coelho, subject of this research.
Premature Ventricular Contraction Recognition using a Fuzzy Maximum Approaching Degree
Authors: Neves Eder Pereira , Oliveira Bruno Rodrigues de , Duarte Marco Aparecido Queiroz , Vieira Filho Jozue
Published: April 2023

This work presents a new methodology for ventricular premature contraction arrhythmias recognition using a set of geometrical attributes recently proposed and a fuzzy maximum approaching degree.  Pattern models based on triangular and trapezoidal membership functions are proposed and a committee comprising these functions is composed using some statistical data, beyond a mechanism for manual selection of attributes and automatic weighting for each attribute. The obtained results show the efficiency and validity of the proposed approach, with 99.07%, 98.36% and 99.79% of accuracy, sensibility and specificity, respectively, as good as the ones obtained by the state-of-art methods.
Desenvolvimento e Construção do Sistema de Controle de Esteira por Pedal - SICESP2020
Authors: Martins de Castro Chaib Fernando , Braga Leandro Charles Augusto , César Leandro , Silva Tiago Alexandre
Published: April 2023

O repertório escrito para percussão requer, em diversas obras, a exploração sonora da caixa-clara através do ato de ‘ligar’ e ‘desligar’ a esteira. Não poucas vezes, essas ações exigem do performer de forma concomitante velocidade, sutileza e precisão o que acaba, pela dificuldade em se combinar esses pontos, trazendo prejuízos à performance (ruídos indesejados, gestos exagerados, oscilação do pulso etc.). Visando auxiliar o percussionista, propomos aqui um mecanismo que permite o controle de ativação da esteira de caixa através dos pés, resguardando assim as mãos para a performance. Através de uma revisão de repertório apontamos algumas obras que onde esse problema é recorrente. Revisamos também patentes e marcas registradas sobre automáticos e mecanismos de esteira. Para o desenvolvimento do projeto utilizamos softwares de design em 3D. Pretende-se assim contribuir para o melhoramento da performance percussiva bem como abrir novos caminhos para a composição e interpretação de obras inéditas que incluam a caixa-clara em seu instrumental.
Poro-viscoelastic material parameter identification of brain tissue-mimicking hydrogels
Authors: Kainz Manuel P. , Greiner Alexander , Hinrichsen Jan , Kolb Dagmar , Comellas Ester , Steinmann Paul , Budday Silvia , Terzano Michele , Holzapfel Gerhard A.
Published: April 2023

Understanding and characterizing the mechanical and structural properties of brain tissue is essential for developing and calibrating reliable material models. Based on the Theory of Porous Media, a novel nonlinear poro-viscoelastic computational model was recently proposed to describe the mechanical response of the tissue under different loading conditions. The model contains parameters related to the time-dependent behavior arising from both the viscoelastic relaxation of the solid matrix and its interaction with the fluid phase. This study focuses on the characterization of these parameters through indentation experiments on a tailor-made polyvinyl alcohol-based hydrogel mimicking brain tissue. The material behavior is adjusted to ex vivo porcine brain tissue. An inverse parameter identification scheme using a trust region reflective algorithm is introduced and applied to match experimental data obtained from the indentation with the proposed computational model. By minimizing the error between experimental values and finite element simulation results, the optimal constitutive model parameters of the brain tissue-mimicking hydrogel are extracted. Finally, the model is validated using the derived material parameters in a finite element simulation.
3D mineral exploration Cu-Zn targeting with multi-source geoscience datasets in the Weilasituo-bairendaba district, Inner Mongolia, China
Authors: Gao Meng , Wang Gongwen , Xu Yunchou , Mou Nini , Huang Leilei , Zuo Ling , Wu Rong
Published: April 2023

The Weilasituo-bairendaba district is located at the eastern end of the Central Asian Orogenic Belt, which is an important component of the Cu-Pb-Zn polymetallic metallogenic belt on the Western slope of the Greater Xing’an Range in Inner Mongolia, China. The known Cu-Zn deposits such as the Weilasituo Cu-Zn deposit and the Bairendaba Ag-Pb-Zn deposit are the same tectonic-magmatic product. The district’s structure framework consists of the NE-trending regional faults, while the secondary faults provide channels and space for mineralization. The ore-bearing rocks are either Baoyintu Group gneisses or quartz diorites. The typical Cu-Zn deposits exhibit obvious Cu, Pb, Zn geochemical anomaly as well as obvious magnetic anomaly. The district-scale two-dimensional (2D) mineral prospectivity modeling has been reported. Nowadays, three-dimensional (3D) mineral prospectivity modeling is necessary and urgent. Integrated deposit geology and accumulated exploration data, the above four exploration criteria (regional fault, secondary fault, geochemical anomaly and magnetic susceptibility) are used for 3D mineral prospectivity modeling. Filtering (upward continuation, low pass filtering, two-dimensional empirical mode decomposition), magnetic inversion and 3D modeling techniques were used to construct geological models. Excellent machine learning algorithms such as random forest (RF) and XGBoost are applied. The two machine learning methods confirm each other to improve the accuracy of 3D mineral prospectivity modeling. In this paper, repeated random sampling and Bayesian optimization are combined to construct and tune models. This joint method can avoid the contingency caused by random sampling of negative samples, and can also realize automatic optimization of hyperparameters. The optimal models (RF28 and XGBoost11) were selected among thirty repeated training models for mineral prospectivity modeling. The obtained areas under the ROC curves of RF28 and XGBoost11 were 0.987 and 0.986, respectively. The prediction-area (P-A) plot and C-A fractal were used to delineate targets and grade targets. The targets were divided into Ⅰ-level targets and Ⅱ-level targets. The I- and II-targets are not only highly consistent with the known Cu-Zn deposits, but also exhibit obvious ore-forming geological features. The 3D targets are beneficial for Cu-Zn exploration in the Weilasituo-bairendaba district.
Quick bathymetry mapping of a Roman archaeological site using RTK UAS-based photogrammetry
Authors: Mazza Davide , Parente Luigi , Cifaldi Daniele , Meo Agostino , Senatore Maria Rosaria , Guadagno Francesco Maria , Revellino Paola
Published: April 2023

Recent technological advances are leading numerous researchers and professional users to the adoption of photogrammetric products for a wide range of geoscientific applications. Especially, drone-based Structure-from-Motion (SfM) photogrammetry is often applied as a high-resolution topographic modelling technique with advantages in terms of time and cost when compared to traditional surveying approaches. The aim of this work, carried out within the GeoArchaeo Sites Project, is to investigate the adaptability of drone-based surveys, even with a targetless approach, and to estimate bathymetrical accuracies in shallow waters. The approach was applied on an underwater site to show the potential for the digitalization and monitoring of an archaeological coastal geosystem in central Italy. Specifically, this work has compared the photogrammetric surveying capability of two drones including a Phantom 4 RTK (‘P4RTK’) and a low-cost Mavic Mini 2 (‘MM2’) and an Olympus TG-6 (underwater camera) for a site submerged with a maximum depth of ∼1.6 m. The assessment of the drone SfM-based products was performed through area-based and point-wise comparisons. Specifically, the area-based were assessed through an underwater photogrammetric survey obtained by acquiring images by an operator snorkeling along a portion of the site of interest. The point-wise comparison was performed using data acquired with a Global Navigation Satellite System (GNSS). This study demonstrates that coupling SfM-photogrammetry and UAS-based surveys have potential to define submerged topography. In particular, the imagery acquired with the P4RTK survey can produce dense 3D models of the underwater surface with high resolution (about 0.02 m) and bathymetric measurements with a vertical accuracy ranging between 0.06 and 0.29 m for the area-based and point-wise analysis, respectively. Thus, the approach adopted and tested involving the use of a P4RTK has the potential to reduce constraints and limitations in terms of GCPs distribution and measurement. Also, with such an approach the need for qualified operators for underwater photogrammetric workflow can be avoided.
Geo-climatic variability and adult asthma hospitalization in Fars, Southwest Iran
Authors: Kanannejad Zahra , Shokri Yousef , Alyasin Soheila , Ghatee Mohammad Amin , Soleimanian Saeede
Published: April 2023

Asthma is a chronic respiratory disease resulting from a complex interaction between genetic and environmental factors. Many environmental factors have been associated with incidence or prevalence of asthma although there is still limited knowledge of major environmental causes of asthma in the general population. This study, for the first time, investigated the effects of climatic and geographical variability on asthma hospitalization among an adult population living in Fars province, southwest Iran. During the study period, the home addresses of patients hospitalized with acute asthma from 2016 to 2019 were mapped. The effects of geo-climatic factors including temperature, rainfall, humidity, evaporation, number of rainy and frosty days, slope, and land covers were assessed on adult asthma hospitalization by Geographical Information System (GIS). Data were analyzed using univariate and multivariate binary logistic regression. A total of 349 patients were recruited, including 157 (44.98%) males and 192 (55%) females. The mean age was 57.77 ± 18.84 years, ranging from 19 to 98 years. Asthmatic patients came from a total of 82 points including villages, towns, and cities. In the univariate analysis, urban setting (OR = 13) and Mean Annual Rainy Days (OR = 1.03) were identified as the factors associated with increased asthma hospitalization, while Mean Annual Temperature (MAT) (OR = 0.927), MinMAT (OR = 0.933), MaxMAT (OR = 0.925), Mean Annual Evaporation (MAE) (OR = 0.999), and slope (OR = 0.925) negatively affected asthma hospitalization. Urban setting was considered the only significant factor in multivariate analysis (OR = 11.026). The major risk zones for adulthood acute asthma in southwest Iran were urban settings and areas with higher numbers of rainy days, lower temperatures, and evaporation at lower slopes.
Gene polymorphisms of inflammatory factors in liver cirrhosis
Authors: Xiao Sailan , Pan Xiongfeng , Huang Xun , Liu Yamin , Wen Shi Wu , Liu Aizhong
Published: April 2023

Introduction: Studies on the association between gene polymorphisms of various inflammatory factors and liver cirrhosis have been inconsistent. The purpose of this study was to comprehensively summarize the available evidence on the association between gene polymorphisms of inflammatory factors and liver cirrhosis through a systematic review.

Methods: We searched databases of PubMed, EMBASE, Web of Science, and the Cochrane Library for relevant articles published from building databases to 25 September 2022. A systematic review and meta‐analysis were performed to investigate the association between gene polymorphisms of various inflammatory factors and liver cirrhosis. Odds ratios (OR) and 95% confidence intervals (CI) were used to assess the strength of association.

Results: A total of 43 articles were included in the systematic review and of them, 22 articles were included in the meta‐analysis. The gene polymorphisms of IL-10–1082 GA + AA vs. GG (OR = 1.43, 95% CI = 1.12–1.83), IL-10–1082 AA vs. GG (OR = 2.03, 95% CI = 1.36–3.02), IL-18 -137 GG vs. CC (OR = 3.84, 95% CI = 1.29–11.40), TGF-β1 -509 T vs. C (OR = 2.52, 95% CI = 1.42–4.48), and IFN-γ +874 T vs. A (OR = 1.98, 95% CI = 1.32–2.98) were associated with liver cirrhosis significantly and no association was observed in other gene polymorphisms included in the meta‐analysis. The review of inflammatory factors gene polymorphisms that were only reported by a single study indicated 19 gene polymorphisms were risk factors and 4 gene polymorphisms were protective factors for liver cirrhosis, while the association between other 27 gene polymorphisms and liver cirrhosis were not statistically significant.

Discussion: This study suggests that IL-10 -1082G/A, IL-18 -137G/C, TGF-β1 -509T/C, and IFN-γ +874T/A were potentially associated with the risk of liver cirrhosis susceptibility. These findings may provide comprehensive evidence for genetic susceptibility and immunogenetic pathology of liver cirrhosis.
Dependence of microstructural evolution on the geometric structure for serviced DZ125 turbine blades
Authors: Xie Yadan , Zhao Jianjiang , Fu Haoran , Wei Hua
Published: April 2023

The turbine blades were directionally solidified by a high-rate solidification process by the Bridgman technique using directional solidified Ni-based master superalloy DZ125 and operated on the engine bench with a high-temperature gas environment of more than 1500 °C from combustor and high-speed rotation of more than 13500 rpm for 400 h. A service-environment-based model was put forward to simulate the distribution of temperature and stress on the DZ125 blade in service. It was found that the distribution of temperature and stress on the serviced DZ125 blade was closely related to its geometric structure. The microstructural evolution of the serviced DZ125 blade was analyzed and the variations of microstructures with temperature and stress were investigated by using a scanning electron microscope. The results revealed that the evolution process of microstructures on the serviced DZ125 blade was different from that of the standard sample tested at constant temperature and uniaxial tensile stress. The reason for this discrepancy was explored using a combination of finite-element calculation and diffusion coefficient calculation.
Sirtuin 1 activator alleviated lethal inflammatory injury via promotion of autophagic degradation of pyruvate kinase M2
Authors: Zhao Shuang , Sun Yili , Wu Xicheng , Yang Yongqiang , Fan Kerui , Hu Kai , Qin Yasha , Li Kexin , Lin Ling , Chen Kun , Ma Yuhua , Zhu Min , Liu Gang , Zhang Li
Published: April 2023

Upregulation of pyruvate kinase M2 (PKM2) is critical for the orchestration of metabolism and inflammation in critical illness, while autophagic degradation is a recently revealed mechanism that counter-regulates PKM2. Accumulating evidence suggests that sirtuin 1 (SIRT1) function as a crucial regulator in autophagy. The present study investigated whether SIRT1 activator would downregulate PKM2 in lethal endotoxemia via promotion of its autophagic degradation. The results indicated that lethal dose of lipopolysaccharide (LPS) exposure decreased the level of SIRT1. Treatment with SRT2104, a SIRT1 activator, reversed LPS-induced downregulation of LC3B-II and upregulation of p62, which was associated with reduced level of PKM2. Activation of autophagy by rapamycin also resulted in reduction of PKM2. The decline of PKM2 in SRT2104-treated mice was accompanied with compromised inflammatory response, alleviated lung injury, suppressed elevation of blood urea nitrogen (BUN) and brain natriuretic peptide (BNP), and improved survival of the experimental animals. In addition, co-administration of 3-methyladenine, an autophagy inhibitor, or Bafilomycin A1, a lysosome inhibitor, abolished the suppressive effects of SRT2104 on PKM2 abundance, inflammatory response and multiple organ injury. Therefore, promotion of autophagic degradation of PKM2 might be a novel mechanism underlying the anti-inflammatory benefits of SIRT1 activator.
Ginsenoside Rg1 can reverse fatigue behavior in CFS rats by regulating EGFR and affecting Taurine and Mannose 6-phosphate metabolism
Authors: Lei Chaofang , Chen Jiaxu , Huang Zhen , Men Yinian , Qian Yue , Yu Mingzhi , Xu Xinyi , Li Lin , Zhao Xin , Jiang Youming , Liu Yueyun
Published: April 2023

Background: Chronic fatigue syndrome (CFS) is characterized by significant and persistent fatigue. Ginseng is a traditional anti-fatigue Chinese medicine with a long history in Asia, as demonstrated by clinical and experimental studies. Ginsenoside Rg1 is mainly derived from ginseng, and its anti-fatigue metabolic mechanism has not been thoroughly explored.

Methods: We performed non-targeted metabolomics of rat serum using LC-MS and multivariate data analysis to identify potential biomarkers and metabolic pathways. In addition, we implemented network pharmacological analysis to reveal the potential target of ginsenoside Rg1 in CFS rats. The expression levels of target proteins were measured by PCR and Western blotting.

Results: Metabolomics analysis confirmed metabolic disorders in the serum of CFS rats. Ginsenoside Rg1 can regulate metabolic pathways to reverse metabolic biases in CFS rats. We found a total of 34 biomarkers, including key markers Taurine and Mannose 6-phosphate. AKT1, VEGFA and EGFR were identified as anti-fatigue targets of ginsenoside Rg1 using network pharmacological analysis. Finally, biological analysis showed that ginsenoside Rg1 was able to down-regulate the expression of EGFR.

Conclusion: Our results suggest ginsenoside Rg1 has an anti-fatigue effect, impacting the metabolism of Taurine and Mannose 6-phosphate through EGFR regulation. This demonstrates ginsenoside Rg1 is a promising alternative treatment for patients presenting with chronic fatigue syndrome.
Recirculation of plasmasphere material during idealized magnetic storms
Authors: Bagby-Wright Christian-Andrew , Welling Daniel T. , Lopez Ramon E. , Katus Roxanne , Walsh Brian M.
Published: April 2023

The fate of flux tube material once it is eroded from of the plasmasphere through a dayside plume remains unknown. The eroded plasmasphere material can be either swept away by the solar wind and lost from Earth’s system, or recirculated into the inner magnetosphere. Recirculating plasmasphere material could plausibly enter the central plasma sheet and contribute to the ring current. This work uses numerical models to explore this possibility. Historically this has been a difficult question to answer due to the fact that solar wind, ionosphere, and plasmaspheric plasmas are all dominated by hydrogen making it difficult to distinguish the source of plasma from observation alone. Recent advances in computing have enabled us to answer this question. Using the Space Weather Modeling Framework (SWMF) to couple the Block-Adaptive-Tree-Solar-Roe-Up-Wind-Scheme (BATS-R-US), Dynamic Global Core Plasma Model (DGCPM), and the Ridley Ionosphere Model (RIM), we can track the motion of the plasmaspheric material once it leaves the plasmasphere in a self-consistent manner.
Observation vs. interaction in the recognition of human-like movements
Authors: Mignone Giovanni , Parziale Antonio , Ferrentino Enrico , Marcelli Angelo , Chiacchio Pasquale
Published: April 2023

A crucial aspect in human-robot collaboration is the robot acceptance by human co-workers. Based on previous experiences of interaction with their fellow beings, humans are able to recognize natural movements of their companions and associate them with the concepts of trust and acceptance. Throughout this process, the judgment is influenced by several percepts, first of all the visual similarity to the companion, which triggers a process of self-identification. When the companion is a robot, the lack of these percepts challenges such a self-identification process, unavoidably lowering the level of acceptance. Hence, while, on the one hand, the robotics industry moves towards manufacturing robots that visually resemble humans, on the other hand, a question is still open on whether the acceptance of robots can be increased by virtue of the movements they exhibit, regardless of their exterior aspect. In order to contribute to answering this question, this paper presents two experimental setups for Turing tests, where an artificial agent performs human-recorded and artificial movements, and a human subject is to judge the human likeness of the movement in two different circumstances: by observing the movement replicated on a screen and by physically interacting with a robot executing the movements. The results reveal that humans are more likely to recognize human movements through interaction than observation, and that, under the interaction condition, artificial movements can be designed to resemble human ones for future robots to be more easily accepted by human co-workers.