bluuebunny/crossref_metadata_2025 huggingface dataset:
Practical results and prospects of using fiber optical sensors of acoustic emission for diagnosting the technical condition of aircraft units
Authors:   Southwest State University, Koptev Dmitry S. , Mukhin Ivan E. ,   Southwest State University
Published: September 2022

Peripheral sensors for measuring aircraft parameters are an integral part of any system for diagnostics and forecasting of technical condition. Their principle of operation in relation to operation at aviation complexes is to convert mechanical, electromagnetic or light quantities into electrical ones for their subsequent processing. The process of radiation of disturbances propagating in the material caused by the dynamic local rearrangement of the structure of materials under the action of internal stresses leading to a change in the crystal lattice or the movement of micro- and / or macrodefects is called acoustic emission. So, the analysis of differences in the form of acoustic waves allows the classification of the type of deformation: crack or plastic deformation, which allows you to more accurately determine the current state of the airframe or diagnosed nodes. The principle of operation of such sensors is based on the effect of converting the linear dimensions of a Bragg cell, made on an optical fiber, into a change in the reflected wavelength. A necessary condition for obtaining correct results of measurements of stress states is the need for temperature compensation of the Bragg cells, which is achieved by introducing additional cells that are mechanically decoupled from the material being diagnosed and react only to the temperature component. The advantage of this method is the absence of the need for additional adjustment of the cells and their alignment, as well as the independence of measurements from the effects of electromagnetic radiation; the sensors are lightweight, vibration-resistant, and insensitive to electromagnetic fields. The article presents the practical results of using fiber-optic acoustic emission sensors for diagnosing the technical condition of critical components and assemblies of aircraft, as well as outlines the prospects for their deepest integration into a unified information and analytical system for diagnosing and predicting the technical state of aviation complexes. The developed technical solutions aimed at simplifying the methods of processing broadband acoustic emission signals, which make it possible to design acoustic emission sensors based on optical fiber, are structurally simpler and cheaper, with an increased signal-to-noise ratio, due to one conversion of an acoustic-optical signal into an electrical one.
Increasing noise immunity of the receiving device at reception of digital signal due to use of additional channel with phase converter
Authors:   Kazan National Research Technical University A.N. Tupolev-KAI (KNITU-KAI), Mahdi Khafaga Ali S.
Published: September 2022

The rapid development of digital information transmission systems using radio signals has led to the need to improve receiving systems. This article considers the possibility of using an improved theory of narrow-band noise to increase the sensitivity of the receiving device when receiving digital signals. It is generally admitted that the task of detection is to make a decision about the presence or absence of a useful signal against the background of interference and noise, which is fundamentally impossible to get rid of. The narrow-band random process structurally is close to the amplitude-modulated oscillation with suppressed carrier and represents a beating signal of two sidebands. It follows from the theory of vibration beats that the phase of the high-frequency component changes by π when the signal envelope passes through 0. Consequently, phase jumps are explained by the fact that narrow-band noises are beating signals of two sidebands. It has been shown that by using the structural differences in the mixture of useful signal and noise and simply narrow-band noise, it is possible to significantly increase the reliability of receiving a digital signal in the field of small signal-to-noise ratios. The article describes in details the mathematical models of the receiving device with an additional receiving channel that uses the phase features of the useful signal and noise mixture and simply narrow-band noise for signal detection. A diagram of a receiving device with an additional channel for the implementation of the receiver on laboratory equipment is given in order to obtain real experimental data. In addition, comparative detection characteristics are presented for a classic single-channel receiver and a receiver with an additional receive channel.
Modulation for cellular 5G/IMT-2020 and 6G networks
Authors:   MTUCI, Bakulin Mikhail G. , Ben Rejeb Taoufik ,   MTUCI, Kreyndelin Vitaly B. ,   MTUCI, Mironov Yuriy B. ,   MTUCI, Pankratov Denis Y. ,   MTUCI, Smirnov Alexey E. ,   MTUCI
Published: September 2022

In recent years, 5G (Fifth Generation) and 6G (Sixth Generation) wireless networks have attracted extensive research interest. According to the 3GPP (3rd Generation Partnership Project) project, 5G networks should be support three main application scenarios: enhanced Mobile Broadband (eMBB), Massive Machine-Type Communications, (mMTC), Ultra-Reliable Low Latency Communication (URLLC). In addition to that, enhanced vehicle-to-everything, (eV2X) are also considered as key technology in 5G. All these scenarios require ubiquitous connectivity providing high data rates and spectral efficiency. These issues lead to many challenges for introducing 5G and 6G networks. Traditional modulation and multiple access schemes will not achieve the requirements of 5G and 6G networks. In order to meet these upcoming requirements, it is necessary to explore novel modulation and multiple access schemes. Data rate, resistance to noise and capacity of wireless network depend on choosing current modulation scheme. To meet the requirements of 5G and 6G and reduce the out-of-band (OOB) leakage various modulation schemes based on subband filtering, pulse shaping and precoding have been proposed. This article provides an overview of the different modulation schemes for 5G and 6G systems.
NOMA schemes with symbol level processing
Authors:   Moscow Technical University of Communications and Informatics (MTUCI), Bakulin Mikhail G. , Ben Rejeb Taoufik Ben Camille ,   Moscow Technical University of Communications and Informatics (MTUCI), Kreyndelin Vitaly B. ,   Moscow Technical University of Communications and Informatics (MTUCI), Pankratov Denis Y. ,   Moscow Technical University of Communications and Informatics (MTUCI), Smirnov Alexey E. ,   Moscow Technical University of Communications and Informatics (MTUCI)
Published: September 2022

Requirements for KPI in 6G networks are significantly higher than in 5G networks. Non-orthogonal multiple access (NOMA) technology has been proposed as a solution to meet the requirements of future communication networks. NOMA technology aims to improve the spectral efficiency of wireless communication systems and support the simultaneous operation of large number of subscribers (especially in mMTC scenarios) and provide flexible resource use. This article discusses the popular symbol-level processing NOMA schemes recently proposed as part of the 3GPP standardization, such as SCMA, PDMA, WSMA, MUSA, and other varieties of NOMA. The main advantages and principles of non-orthogonal access technology are illustrated using the NOMA system with division in power domain (PD-NOMA) for uplink and downlink. Characteristics of various symbol-level processing NOMA schemes, their advantages and disadvantages, as well as problems in the way of their implementation in future wireless networks are analyzed. In addition, this article discusses block diagrams of NOMA systems and mathematical models illustrating the formation of baseband signals in such systems. In conclusion, the noise immunity characteristics of the most popular NOMA schemes with symbol-level processing are given for various loading factors. From the analysis performed, it follows that no NOMA scheme has yet been proposed that is effective in various scenarios of future wireless communication systems and has an acceptable processing complexity in combination with flexible resource allocation for mass connection of subscriber devices.
Method for studying the dependence of the visibility of artifacts in an image on its physical dimensions
Authors:   Moscow Technical University of Communications and Informatics, Egorov Dmitriy , Davydova Anastasia ,   Moscow Technical University of Communications and Informatics, Selivanov Vladimir ,   Moscow Technical University of Communications and Informatics, Kapustin Pavel ,   Moscow Technical University of Communications and Informatics, Kim Evgeniy ,   Moscow Technical University of Communications and Informatics, Taramov Ahmed ,   Moscow Technical University of Communications and Informatics
Published: September 2022

An actual size of screen proposed displays video sequence influence the process of creating subjective quality evaluation of multimedia content perception on various devices. The question of display size and resolution impact on improvements in perceived visual quality still remains unclear. Any decisions on display size must demand understanding of physical, perceptual and cognitive opportunities of each user, also physical working/operational environment constrains. In proposed paper presented a method allowing to dynamically change the visual quality of a typical media content depending on the physical size of the display. The unique contribution of proposed study for the first time represents method ology of the degraded video images association with streaming video and their effects on various display sizes with fixed screen parameters. Method can be used for scientific purposes related to practical applications for visualization technologies, signal reception and processing in information technology devices, also in related areas such as marketing, advertising, film industry.
Noise-like signals and their conversion used in radio communication systems
Authors:   Academy of the State Fire Service EMERCOM of Russia, Strakholis Andrey A. , Oleynikov Vladimir T. ,   Academy of the State Fire Service EMERCOM of Russia, Petrenko Andrey N. ,   Academy of the State Fire Service EMERCOM of Russia
Published: September 2022

The actual problem of determining the principle of the transmission signal formation and its transformation into an initial signal providing stable radio communication in a radio interference situation is considered. This is typical when organizing the management of fire extinguishing units, especially in forests and steppes. The subject of the study is the use of a reprogrammable matched filter (PPSF), in which a spin echo processor with a working substance 59Co is used to convert phase-manipulated noise-like signals. The purpose of the work is to propose the use of a spin processor in the PPSF, which ensures the conversion of FM SHPS even in the presence of dynamically changing multipath. With this configuration of the radio-transmitting device, it becomes possible to organize multicast radio communication without deploying a base station. The results of the study include the results of machine modeling of the conversion of FM SHPS to PPSF under unfavorable conditions of formation of a three-beam signal at the input of a radio receiver. The structural diagrams of the FM SHPS and PPSF shaper of the laboratory installation on which the research was carried out are given. The obtained results of laboratory studies within the permissible error, when removing the results and in measuring instruments coincide with the results of machine modeling. Therefore, the considered principle of converting FM SHPS into PPSF, which is based on the principle of converting FM SHPS into a primary signal, can be successfully implemented in radio stations used by units of the Ministry of Emergency Situations of Russia in fire extinguishing areas.
Perfil bibliométrico de la Revista Peruana de Investigación Educativa de la SIEP en sus primeros años (2009-2020)
Authors: Montes Iturrizaga Iván , Arias Gallegos Walter Lizandro , Contreras Cerdeña Eileen Janeth , Pamplona Ciro Yajaira Licet
Published: September 2022

En este artículo se presentan los resultados de un estudio, analítico y bibliométrico, sobre la Revista Peruana de Investigación Educativa de la Sociedad de Investigación Educativa Peruana (SIEP). Se trabajó sobre la base de 75 artículos publicados en esta revista y se procesó la dataa través del reporte del Google Scholar, para obtener un perfil según los siguientes indicadores bibliométricos: autores, sexo de los autores, filiación o no a la SIEP, nacionalidad, instituciones comprendidas en las muestras, ejes temáticos, enfoque metodológico y el impacto según las citaciones registradas en el Google Scholar. Los resultados de este estudio ofrecen luces acerca de la composición de la revista, las metodologías privilegiadas por los autores que ven en este medio una vía legítima de divulgación y las citaciones nacionales e internacionales, entre otros. Así mismo, se concluye que la revista no es una publicación endogámica, publican más mujeres que varones, presenta un bajo índice de internacionalización y los autores más citados son Ricardo Cuenca, Javier Murillo y Mercedes Loza, entre otros.
Estrés, ansiedad y depresión en estudiantes de secundaria de una institución educativa privada de Lima durante la pandemia por COVID-19
Authors: Diaz del Olmo Calvo Francesca , Muñoz del Carpio-Toia Agueda , Arias Gallegos Walter Lizandro , Rivera Calcina Carlos Renzo
Published: September 2022

En el contexto de la pandemia por la COVID-19, el objetivo de este estudio es determinar la asociación entre el aislamiento social obligatorio y cuarentena con la presencia de estrés, ansiedad y depresión en los alumnos de quinto de secundaria. Se realizó un estudio asociativo, mediante la toma de la escala DASS-21, a una muestra de 66 estudiantes del último año de estudios secundarios de un colegio de Lima, en Perú. El cuestionario se difundió mediante plataformas virtuales para los estudiantes, previa toma de consentimiento informado. El 80.3 % de los estudiantes entrevistados declaró haber cumplido totalmente el aislamiento social obligatorio y la cuarentena. El 24.3 % de la muestra presentó ansiedad; el 16.70/o, estrés; y el 42.3 %, depresión. Se encontró que las mujeres tuvieron niveles significativamente mayores de estrés, ansiedad y depresión que sus pares varones, y que los estudiantes que cumplieron parcialmente la cuarentena presentaron mayores niveles de ansiedad que aquellos que no.
Succinate metabolism in cardiovascular diseases
Authors: Shan Wenxin , Cui Hongtu , Xu Yangkai , Xue Jing , Zheng Lemin
Published: September 2022

Cardiovascular disease (CVD) refers to a class of diseases related to the heart or blood vessels that have high global incidence. Succinate is generally considered an important intermediate product of the tricarboxylic acid cycle. Recent studies have shown that succinate is related to the pathophysiology of CVD, such as atherosclerosis, acute aortic dissection, hypertension, myocardial ischemia-reperfusion injury, and heart failure. It may represent a potential target or biomarker for CVD. It has been demonstrated that succinate not only participates in various energy metabolic pathways but also plays an important role in various pathophysiological activities as a signaling molecule. Given the significance of metabolism in CVD, it is important to focus on the metabolic regulation mechanism of succinate in CVD. This review outlines the latest evidence pointing to the potential role of succinate in CVD, along with its mechanisms, and updates the current understanding on the role of succinate in CVD. Further studies may focus on identifying succinate, its receptor, and its downstream signaling molecules as new targets for the prevention and treatment of CVD.
Risk factors for cesarean section in women of urban Puducherry, India: A matched case–control study
Authors: Rajaa Sathish , Sujiv Akkilangunta , Kar Sitanshu Sekar
Published: September 2022

Cesarean section (CS) is generally performed either to ensure maternal and child safety when vaginal delivery is not possible. The WHO has indicated that CS rates of more than 10% are considered overutilization. Increased CS rates can cause an increase in postpartum antibiotic treatment and longer hospital stay. In this research, we conducted a matched case–control study, including all women who gave birth through CS and resided in the study area over a 3-year period before the survey as cases and similar age- and year-matched women who had normal vaginal delivery during the same period as controls. The data were collected using a semi-structured pro forma through personal interviews and verified with discharge cards. We obtained a sample of 140 women (70 matched cases and controls) as study participants. Our results show that unadjusted analysis revealed socioeconomic status, history of gestational diabetes mellitus, previous lower segment CS (LSCS), and malpresentation emerged as risk factors, whereas in the adjusted analysis, we observed that previous LSCS (aOR 45.4 [4.3 – 483.6]), malpresentation (aOR 11.0 [1.6 – 73.8]), and belonging to middle (aOR 3.3 [1.0 – 10.8]) and upper class (aOR 23.55 [CI: 1.2 – 463.8]) remained as independent risk factors. Our study identified independent risk factors for CS that needs to be tackled for bringing down the CS rates.
DOES PROVIDER PAYMENT METHOD IMPROVE THE COMPLETENESS OF MEDICAL RECORDS? A STUDY ON THE IMPACT OF THE CASEMIX SYSTEM ON MEDICAL RECORD DOCUMENTATION IN A PUBLIC SPECIALIST HOSPITAL IN WEST SUMATRA PROVINCE, INDONESIA
Authors: Kamal Kasra  , Aljunid Syed Mohamed , Nur Amrizal M.
Published: September 2022

In 2010, the Government of the Republic of Indonesia implemented a casemix system called INA-CBG as a provider payment method for the National Health Insurance program for the poor One of the obstacles faced in practice was the incompleteness of medical record documentation. This cross-sectional study, using quantitative and qualitative research methods,  aimed to review the impact of casemix implementation on medical record documentation. The study was conducted at the National Stroke Centre Hospital, Bukittinggi, West Sumatra Province, Indonesia, which is the only government specialist hospital for stroke patients in Indonesia. We reviewed 244 and 559 medical records from 2008 and 2012, respectively. This study used chi-square test to differentiate the completeness of medical records before and after the implementation of the casemix system. Qualitative data were collected through in-depth interviews with senior doctors, the head of the medical records department, and a focus group discussion with six senior medical record officers for detailed investigations of the incompleteness of medical records. This study found that the completeness of medical records improved from 59.4% to 73.9% with casemix implementation. The variables that increased the completeness of medical records were the admission date, discharge date, length of stay, age, secondary diagnosis, and secondary procedure. In conclusion, implementation of the casemix system improved the completeness of medical records and had a positive impact on medical record documentation.
On Practical Gas and Liquid Leakage Diameter Analytic Estimation for Vacuum Applications
Authors: Nagler Jacob
Published: September 2022

This paper presents analytical adaptive expressions for the two distinct cases of tank leakage estimations for gas (sonic and subsonic) and liquid flows under specific measurements data that assists to evaluate a circular hole/slit/orifice (crack) diameter and area. The analytic process is performed by equalization between analytic reformulation of the traditional mass flow formulations and the test formulation for mass flow dependent driven pressure differential over time multiplied by volume. In case of uniform environment conditions, the slit diameter might also represent the total sum of numerous exit holes/slits possible existence. Finally, a qualitative agreement was found between literature and current results in the context of orifice diameter versus pressure differential.
Fraturas De Fêmur Proximal: Incidência Antes E Durante A Pandemia De Covid-19
Authors: Bertholini Thiago Henrique Abrão , Prado José Eduardo Sousa , Moreira Maurício Ferraz , Guedes Daniel Novais
Published: September 2022

Introdução: A fratura do fêmur proximal é uma causa comum e importante de mortalidade e perda funcional. A incidência deste tipo de fratura aumenta com a idade, devido principalmente ao aumento do número de quedas associado a uma maior prevalência de osteoporose. É mais comumente relacionada com idosos moradores nas áreas urbanas, de sexo feminino e institucionalizados. A fratura do fêmur proximal pode ser intracapsular ou extracapsular. No primeiro tipo estão as fraturas do colo femoral, e no segundo, as fraturas transtrocanterianas, sendo que ambas decorrem de traumas de baixa energia, como quedas. O tratamento da maioria destas fraturas é cirúrgico, visando a redução e fixação estável da fratura, utilizando os mais variados métodos de osteossíntese ou artroplastia, especialmente no caso de fraturas do colo femoral com desvio.
Objetivo: Avaliar a incidência de fraturas de fêmur proximal antes e durante a pandemia de COVID-19.
Método: Trata-se de um estudo retrospectivo, com revisão sistemática de dados referentes ao número de procedimentos cirúrgicos de fratura de fêmur proximal nos anos de 2019 a 2021, correspondendo ao período antes e durante a pandemia da COVID-19, e demonstrar sua incidência e necessidade de atendimento, em um hospital particular do interior do estado de São Paulo.
Resultados: No período de estudo foram realizados 1.203 procedimentos. Foi possível notar o aumento gradativo dos casos durante os anos de pandemia, e um alto índice de fraturas de fêmur proximal em mulheres, chegando em 2022 a uma diferença de 62% em relação ao sexo masculino. A taxa de mortalidade durante a internação hospitalar foi de 2,39% em 2019, 2,78% em 2021, e 2,83% em 2022. Os fatores correlacionados positivamente com a mortalidade, indicados com maior frequência, foram a idade avançada, presença de doenças associadas, deficiência cognitiva importante e sexo feminino.
Conclusão: A literatura recente, mesmo inserida no contexto de uma pandemia e de suas restrições, identificou quatro grandes fatores relacionados diretamente com a mortalidade nas fraturas do fêmur proximal do idoso, sendo eles a idade avançada do paciente, a presença de doenças associadas, o sexo feminino e a existência de deficiências cognitivas.
Osmanlı Hukukunun Afgan Hukukuna Etkisi: Ceza ve Medeni Kanunları Örneği
Authors: FURKANİ Mehterhan
Published: September 2022

Hz. Peygamber hayatta iken sahabe her meselenin çözümü için ona, vefatından sonra da Kur’ân ve Sünnete başvuruyorlardı. Söz konusu iki kaynakta hükmünü bulamadıkları konularda ise içtihat yoluyla hüküm çıkarıyorlardı. İctihat yapacak seviyede olmayanlar da dini konularda uzman olan kimselere başvurarak bilgi ediniyordu. Onlardan sonra gelen Müslümanlar da aynı yolu takip ettiler. Daha sonra telif edilen fetva kitaplarından, fetvanın yanı sıra kazâ konusunda da istifade edildi. İslam hukukunun kanunlaştırma teklifi her ne kadar İbn Mukaffa‘ (öl. 142/759) tarafından çok erken bir dönemde yapılmışsa da modern anlamda kanunlaştırma faaliyeti geç başlamıştır. Çağdaş batı dünyasında kanunlaştırma faaliyeti 18. asrın sonlarında başlamış, 19. yüzyılda bütün Avrupa kıtasına yayılmıştır. Osmanlı Devleti Batı’dan etkilenerek 1840’ta çıkarılan Ceza Kanunu ile modern anlamda kanunlaştırma hareketine başlamıştır. İslam dünyasında medeni hukukunun kanunlaştırılması ise modern anlamda Mecelle ile başlamıştır. Bunu da 1917 tarihinde çıkarılan Hukūk-ı Âile Kararnâmesi takip etmiştir. İslam hukuku esas alınarak hazırlanan bu iki kanun Osmanlı’nın hakimiyeti altında olan birçok ülkede uygulanmıştır. Hatta söz konusu iki kanun, günümüzde Türkiye Cumhuriyeti sınırları içerisinde bulunan bölgelerde ilga edildikten sonra da diğer bazı İslam ülkelerinde uzun süre yürürlükte kalmaya devam etmiştir. Osmanlı, bu çalışmaları ile diğer İslam ülkeleri için de öncül olmuş, daha sonra diğer İslam ülkeleri de bunları örnek alarak kendi medeni kanunlarını hazırlayıp yürürlüğe koymuşlardır. Bu ülkelerden biri de Afganistan’dır. Afganistan Osmanlı hakimiyeti altına girmediği halde kanunlaştırmada doğrudan veya dolaylı olarak Osmanlı hukukundan etkilenmiş ve Osmanlı hukukunu kendine örnek almıştır. Afganistan’da ilk ceza kanunu hazırlanırken, Osmanlı Devleti’nin 1858 tarihinde çıkardığı Ceza Kanunnâme-i Hümâyunu adlı kanun esas alınmıştır. Sözü geçen Ceza Kanunnâme-i Hümâyunu’nun bazı maddeleri ya olduğu gibi hiçbir değişiklik yapılmadan veya az bir değişiklik yapılarak 1921 tarihli Nizamnâme-i Cezâ-yı Umûmî adlı ceza kanununa yerleştirilmiştir. 1957 tarihli “Usulnâme-i İdâri-yi Mehâkim-i Adliye” (Adli Mahkemeler İdaresi Kanunu) ile 1958 tarihli “Usûl-i İcraât-ı Muhâkimât-ı Hukûkî-yi Adlî” (Adlî Hukûkî Muhakimenin Uygulama Usulü) adlı kanunlarda bazı meselelerde Mecelle’ye göre hüküm verilmesi ve kadıların kanundaki boşlukları Mecelle ile doldurmaları gerektiği ifade edilmektedir. 1977 yılında yürürlüğe giren Afgan Medeni Kanunu’na baktığımızda, Mecelle ve Osmanlı Hukūk-ı Âile Kararnâmesi’nden etkilendiğini görmekteyiz. Aynı şekilde Afgan mahkemelerinde günümüze kadar, Afgan Medenî Kanunu’nun yanı sıra Mecelle ve şerhlerinden istifade edilmektedir. Hanefi fıkıh esas alınarak hazırlanan Afgan Medeni Kanunu’nda bazı konularda Hanefî fıkhı dışına çıkıldığı ve bu yönden Osmanlı Hukūk-ı Âile Kararnâmesi’ne uyulduğu görülmektedir. Bu makalede Osmanlı hukukunun Afgan hukukuna olan etkisi ceza hukuku, aile hukuku ve borçlar hukuku bağlamında ele alınacaktır.
Hâricî ve İbâzî Literatüre Dair Bir Kavram Tespit Denemesi
Authors: AĞIRKAYA Güven
Published: September 2022

İslam düşünce tarihinin ilk oluşumlarından biri Hâricîlerdir. Onlar ilk olarak Sıffin’de tahkim hadisesi üzerine Hz. Ali’den ayrılmış daha sonra ise kendi aralarında ihtilaf ederek bölünmüşlerdir. Onların kimi kılıç kalkan taraftarı olup kendilerinden olmayanlara karşı son derece sert ve katı bir yolu benimserken, kimi de daha mutedil bir yaklaşım içerisinde olmuştur. Özellikle marjinal bir grup olarak maruf olmuş Hâricîlerin mutedil kanadını temsil eden İbâzîler varlıklarını günümüze kadar sürdürürken, mutedil olmayanlar zamanla tarihe karışmışlardır. İbâzîlik tarih boyunca Hâricîliğin gölgesinde azınlıkta bir mezhep olarak kalmakla beraber kendilerine has dinî ve entelektüel bir literatür oluşturmayı başarmış bir oluşumdur. Tarihi süreçte Hâricî-İbâzî bağlamında günümüze ulaşmış literatürün hemen tamamı İbâzîlere aittir. Ülkemizde özellikle son dönemlerde İbâzî literatüre dönük akademik bir ilgi söz konusudur. Bir literatürün incelenmesinde en öncelikli hususlardan biri ilgili alandaki terminolojidir. Zira lafızlar tutarlı bir sisteme sahip düşünce teşekküllerinin anlam örgüsüne girdiklerinde ilk vaz edildikleri anlamlardan uzaklaşarak farklı işlevsellikler kazanırlar. Müşterek kavramların düşünce ekolleri tarafından kendi entelektüel birikimlerinde farklı anlamlarda kullanılması ise mezkûr durumu daha da ehemmiyetli hale getirir. Binâenaleyh araştırma konusu yapılmış bir literatürün doğru mütalaa edilmesi ancak terminolojisinin kendi düşünce örgüsünde tanımlanıp anlaşılmasıyla mümkündür. Bu bağlamda İbâzîler kendi literatürlerini aynı zamanda kendilerine has bir terminolojiyle oluşturmuşlardır. Bu araştırmada, İbâzîlikle ilgili okumalarda sıkça tesadüf edilecek kavramların derlenip mümkün olduğunca kendi kaynakları doğrultusunda medlullerinin tespit edilmesi hedeflenmiştir. Burada özellikle araştırma konusu yapılan, mezhep müellifleri tarafından İbâzîlere has anlamlarla kullanılan kavramlardır. Çalışma, isminden de anlaşıldığı üzere, İbâzîlere ait bütün kavramları tespit etme gayesi gütmemiştir. Özellikle İbâzîlere has kullanım ve muhtevaları olan kavramların tespitine ağırlık verilmiştir. Tespit edilen kavramlar, Türkçe telaffuz ve kullanımları dikkate alınarak alfabetik sıraya konulmuştur. Ancak özellikle beraber kullanımı yaygınlaşmış ve muhtevaları birbiriyle ilişkili bazı kavramlar bir arada verilmiştir. Çalışma yürütülürken ulaşılan İbâzî eser ve sözlükler tarama yöntemi kullanılarak incelenmiş ve gerekli görülen yerlerde mezhep dışı eserlere başvurularak karşılaştırmalar yapılmıştır. Genel itibariyle iki ana bölümden müteşekkil olan çalışmanın giriş ve birinci bölümünde İbâzîlik ve ıstılah kavramı hakkında kısa bilgiler verilmiş; ikinci bölümde ise tespit edilen kavramlar üç gruba ayrılmış olarak maddeler halinde serdedilmiştir.
THE STUDY OF A MAJOR 2008 SUBSTATION INCIDENT IN THE EPS OF CRETE
Authors: Emmanuel Thalassinakis
Published: September 2022

A major incident in the Electric Power System (EPS) of Crete resulting in extensive damages in the SS Iraklio 3, 150/15 kV is studied. The accident originated from a medium voltage fault at the substation. This fault was not cleared due to the coincident destruction of the protection and control circuits resulting in large shortcircuit currents for 16 minutes, fires of materiel and extensive damage in high voltage, medium voltage as well as DC voltage hardware of the substation in addition to significant loss of load. This paper begins with an assessment of the power system condition at the time of the incident. Then the sequence of events for this accident will be described. The ensuing measures that include the restoration of interrupted power supply, the partial return to service as well as the final completion of repairs at the substation facility are detailed. The analysis of the incident is presented. Conclusions of practical importance are drawn as well as recommendations regarding improvements in hardware and protection system and in the available technical support that can be crucial in avoiding and/or limiting damage in future incident.
BRUSHLESS EXCITATION SYSTEM ELECTROMAGNETIC DESIGN AND ANALYSES
Authors: Livio Šušnjić
Published: September 2022

The brushless synchronous generator (SG) excitation system consists of a main exciter, a permanent magnet generator (PMG) of consequent rotor poles type, and an automatic voltage regulator (AVR). Both exciter machines have been properly designed and analysed. The machines performances are obtained by time stepping finite-element method (FEM) coupled with the external electrical circuit. An experimental machine is built and the measured results are given.
Neuromarketing y el estudio de expresiones faciales de emociones
Authors: Orosco Morales Sergio , Corona Ferreira Arturo , Custodio Izquierdo Carlos Arturo , González Zacarías Carlos , González Zacarías Carlos
Published: September 2022

Las expresiones faciales representan forma de comunicación no verbal, producto de las emociones, las cuales han sido estudiadas intensamente desde mediados del siglo XX. Actualmente en la era del conocimiento, con la ayuda de la inteligencia artificial, las neurociencias y la tecnología de la información ha sido posible identificarlas de manera sistémica lo que abre la oportunidad de comprender mejor el comportamiento humano, mediante la representación en datos las emociones producto de la actividad fisiológico. El estudio las expresiones de emociones que manifiesta el rostro, permite crear nuevas áreas de oportunidad en aplicaciones diversas en mercadotecnia, educación y psicología; donde de manera general representa en cada área representa áreas de oportunidad de mejorar recursos, productos y servicios que se ofrecen por medio del web o aplicaciones de escritorio. Este documento se enfoca específicamente en el neuromarketing, el cual es un campo interdisciplinario que combina la mercadotecnia con nuevas técnicas de neuroimagen para identificar desde una perspectiva emocional y fisiológica las decisiones y el comportamiento del consumidor. El campo considera disciplinas como procesamiento de imágenes, reconocimiento de patrones del rostro, visión por computadora y redes neuronales, esto lleva una mayor comprensión y uso de esta disciplina en camino a convertirse en una ciencia autónoma. El neuromarketing centra el estudio de decisiones de elección en las emociones para alimentar sistemas de información, agrupan la información en modelos, donde su producto reconoce las emociones.
Phytochemical characterization and biological activities of butanolic extract of aerial parts of Tetraclinis articulata from Algeria
Authors: Kara Ali Wahiba , Zine El Abidine Ababsa  , Mounira KARA Ali  , Nour Elhouda Ayeb  , Asma Ait Kaki  , Lilia Douaouya
Published: September 2022

Tetraclinis articulata is a forest plant species that is widely used in North African folk medicine due to its immense bioactive potential. The objective of the present study was to characterize flavonoids present in butanolic extract of aerial part of T. articulata (TABE) and to test its antibacterial synergistic effect, anticoagulant and antioxidant properties. The analysis of the TABE by colorimetric tests and TLC revealed the presence of flavonoids. The dosage showed that the proportions of total flavonoids and flavonols were 19.25 ± 0.07 and 13.6 ± 1.6 mg QE/g DW, respectively. Besides, the greatest antibacterial activity of the extract was shown against S. aureus. In contrast no effect was observed against E. coli. Furthermore, the most synergistic potential inhibitory effect was noted in the case of E. coli, when the extract was combined with penicillin. In addition, the MICs was determined used microdilution method, the values obtained were ranged from 2.5 to 20 mg/ml. Moreover, the in vitro anticoagulant activity was assessed by PT and KCT tests. The results showed interesting anticoagulant activity, with KCT value of 55.4 s which is superior to that obtained by the anticoagulant drug –Lovenox- (39.37s). The antioxidant activity was evaluated in vitro using DPPH• method. The result expressed in terms of IC50 was found to be 0.04 mg/ml. To conclude, the TABE constitutes a valuable source of anticoagulant, antioxidant and antibacterial synergism metabolites, which makes it a potential candidate to isolate responsible flavonoids and to develop novel pharmaceutical formulations.
Association of angiotensin-converting enzyme gene insertion/deletion polymorphism with cervical cancer in an Algerian population
Authors: Semmame Ouarda , Sedrati Khadija , Ziada Hadia , Abadi Noreddine , Sata Dalila
Published: September 2022

Angiotensin-converting enzyme (ACE) has been reported to be associated with the pathogenesis and progression of human cancers. Nevertheless, the details of that role remain inconclusive. We conducted this case-control study to determine the frequency of the ACE I/D polymorphism and its relationship to the risk of cervical cancer in the Algerian population. Genotype analysis of the ACE I/D polymorphism was performed using polymerase chain reaction (PCR) in DNA isolated from peripheral blood samples of 88 cervical cancer patients and 161 healthy controls subjects. Overall, the frequencies of ID, II, and DD genotypes showed a significant difference between cervical cancer patients and controls (p <0.0001). The I allele frequencies were more frequent in cervical cancer patients than in healthy subjects. Contrary to expectation, individuals’ carriers of the I allele (ID +II) had a significant increase in cervical cancer risk when using the genotype DD as the reference category (II+ID vs. DD: OR, 6; 95% CI, 2.71-13.29, p <0.0001). Our results indicate that ACE I/D polymorphism may contribute to the development of cervical oncogenesis and might be used as a common risk factor for cervical cancer susceptibility.
Magnetohydrodynamic Waves in an Asymmetric Magnetic Slab with Different External Flows
Authors: Zsámberger Noémi Kinga , Sánchez Montoya Carmen M. , Erdélyi Róbert
Published: September 2022

Building on recent studies of the Kelvin–Helmholtz instability (KHI) in the solar atmosphere, we investigate a simple analytical model that can further our understanding of how the presence of bulk flows influences the propagation of magnetohydrodynamic (MHD) waves. Our model builds on a series of recent works on stationary MHD waveguides and looks at a magnetic slab with a density asymmetry, as well as asymmetric background steady flows present in its environment. We obtained approximate solutions to the dispersion relation for the important and applicable limiting cases of a thin or a wide slab, as well as low- and high-β plasmas. We also explored the relation between the angular frequency of trapped MHD waves, the limit for the onset of the KHI, and small parameters describing the flow and density asymmetries. Our analytical investigation is complemented by a numerical analysis for various bulk flow speeds and slab widths. Both these avenues of study reveal that the flow field asymmetry has an important effect on both the cutoff frequencies and the stability of trapped MHD waves in the slab configuration.
Locations and Morphologies of Jellyfish Galaxies in A2744 and A370
Authors: Bellhouse Callum , Poggianti Bianca , Moretti Alessia , Vulcani Benedetta , Werle Ariel , Gullieuszik Marco , Radovich Mario , Jaffé Yara , Fritz Jacopo , Ignesti Alessandro , Bacchini Cecilia , Tomičić Neven , Richard Johan , Soucail Geneviève
Published: September 2022

We present a study of the orbits, environments, and morphologies of 13 ram-pressure stripped galaxies in the massive, intermediate redshift (z ∼ 0.3−0.4) galaxy clusters A2744 and A370, using MUSE integral-field spectroscopy and Hubble Space Telescope imaging from the Frontier Fields Program. We compare different measures of the locations and morphologies of the stripped sample with a sample of six post-starburst galaxies identified within the same clusters, as well as the general cluster population. We calculate the phase-space locations of all cluster galaxies and carry out a substructure analysis, finding that the ram-pressure stripped galaxies in A370 are not associated with any substructures, but are likely isolated infalling galaxies. In contrast, the ram-pressure stripped galaxies in A2744 are strictly located within a high-velocity substructure, moving through a region of dense X-ray emitting gas. We conclude that their ram-pressure interactions are likely to be the direct result of the merger between two components of the cluster. Finally, we study the morphologies of the stripped and post-starburst galaxies, using numerical measures to quantify the level of visual disturbances. We explore any morphological deviations of these galaxies from the cluster population, particularly the weaker cases that have been confirmed via the presence of ionized gas tails to be undergoing ram-pressure stripping, but are not strongly visually disturbed in the broadband data. We find that the stripped sample galaxies are generally divergent from the general cluster sample, with post-starburst galaxies being intermediary in morphology between stripped galaxies and red passive cluster members.
Plasminogen Activator Inhibitor-1 in Acute Myeloid Leukemia: Is It Useful in Predicting Response to Induction Remission Therapy?
Authors: Al-Shammari Haider Hasan Jaleel , Al-Bayaa Israa , Al-Rubaie Haithem Ahmed
Published: September 2022

BACKGROUND: Coagulation and fibrinolytic abnormalities are common in patients with acute myeloblastic leukemia (AML). Plasminogen activator inhibitor (PAI) activity is believed to be elevated during the initial diagnosis and relapse of AML patients.

AIM: This study aimed to evaluate the levels of plasma PAI-1 activity in AML patients before and after remission induction.

METHODS: Thirty AML patients and 20 healthy volunteers were included in this study. The patients were classified according to AML-FAB subtypes. All patients received 7+3 induction chemotherapy. They were evaluated for complete remission after induction chemotherapy and followed up for 6 months.

RESULTS: PAI-1 activity was measured by ELISA immunoassay. PAI-1 activity was significantly higher in AML patients than the control group (P=0.016), whereas there was insignificant difference among patients in various AML subgroups (P>0.05). Before and after treatment, there was a significant difference in PAI-1 activity between patients with active disease and those at remission (P= 0.023 and <0.0001, respectively).

CONCLUSION: High PAI-1 activity in AML patients is found to be associated with poor response to treatment.
Daily Hemodialysis Helps Critical Nephritic Lupus Patient: A Case Report
Authors: Fitri Lillah , Aditianingsih Dita
Published: September 2022

Background: Nephritic lupus is the most common and serious complication of systemic lupus erythematosus (SLE) and is associated with a worse prognosis. Hemodialysis is effective in alleviating symptoms and renal involvement in a nephritic lupus patient.
Method: A 33-year-old female was diagnosed with SLE in September 2017. She was also diagnosed with diffuse membranous proliferative glomerulonephritis, as confirmed with a kidney biopsy. She complained of gradual onset limb weakness and peripheral edema 3 months before admission. She was treated with 6 cycles of cyclophosphamide and continued with methylprednisolone 16 mg once daily, hydroxychloroquine 200 mg once daily, and myfortic 360 mg twice daily. A day before ICU admission, her creatinine level was increased to 4.6 mg/dl with an estimated GFR of 12 ml/min and her symptoms then worsened into seizures and lung edema. Daily hemodialysis with heparin-free SLEDD was performed. About 2L was extracted for the first 6 hours with Qb 150 ml and Qd 300 ml and was continued until the day after. For the next 4 days, 3L was extracted per day with Qb 200ml and Qd 500 ml. The patients’ hemodynamic status was within normal limits during dialysis period. The condition improved and the patient was transferred to the ward.
Discussions: Hemodialysis is a way to solve kidney problems in in nephritic lupus and SLE patients in general. It should not only be employed for mainly kidney problems but could be beneficial in autoimmune patients with conditions such as nephritic lupus. Slowly extracted dialysis type would be a good and inexpensive option to resolve nephritic lupus in compromising lupus patients. Filtration is ensured and solute removal is achieved relatively equivalent to CRRT.
Conclusion: Daily hemodialysis could increase renal salvation by providing less creatinine serum and removing accumulated fluids. The SLEDD type could be used for critical nephritic lupus patients with reduced hemodynamic perturbations, minimal anticoagulant, and lower cost.
LIDAR-based autonomous navigation method for an agricultural mobile robot in strawberry greenhouse: AgriEco Robot
Authors: Abanay Abdelkrim , Masmoudi Lhoussaine , El Ansari Mohamed , Gonzalez-Jimenez Javier , Moreno Francisco-Angel
Published: September 2022

This paper presents an autonomous navigation method for an agricultural mobile robot "AgriEco Robot", with four-wheel-drive and embedded perception sensors. The proposed method allows an accurate guidance between strawberry crop rows while automatically spraying pesticides, as well as detecting the end and switching to the next rows. The main control system was developed using Robot Operating System (ROS) based on a 2D LIDAR sensor. The acquired 2D point clouds data is processed to estimate the robot's heading and lateral offset relative to crop rows. A motion controller is incorporated to ensure the developed autonomous navigation method. Performance in terms of accuracy of the autonomous navigation has been evaluated in real-world conditions within strawberry greenhouses, proving its usefulness for automatic pesticide spraying.
Mathematical estimation for maximum flow of goods within a cross-dock to reduce inventory
Authors: Mukherjee Taniya , Sangal Isha , Sarkar Biswajit , Alkadash Tamer M.
Published: September 2022

Supply chain management has recently renovated its strategy by implementing a cross-docking scheme. Cross-docking is a calculated logistics strategy where freight emptied from inbound vehicles is handled straightforwardly onto outbound vehicles, eliminating the intermediate storage process. The cross-docking approach thrives on the minimum storage time of goods in the inventory. Most of the cross-docks avail temporary storage docks where items can be stored for up to 24 hours before being packed up for transportation. The storage capacity of the cross-dock varies depending on the nature of ownership. In the rented cross-docks center, the temporary storage docks are considered of infinite capacity. This study believes that the temporary storage facilities owned by the cross-dock center are of finite capacity, which subsequently affects the waiting time of the goods. The flow rate of goods within the cross-docks is expected to be maximum to avoid long waiting for goods in the queue. This paper uses a series of max-flow algorithms, namely Ford Fulkerson, Edmond Karp, and Dinic's, to optimize the flow of goods between the inbound port and the outbound dock and present a logical explanation to reduce the waiting time of the trucks. A numerical example is analyzed to prove the efficacity of the algorithm in finding maximum flow. The result demonstrates that Dinic's algorithm performs better than the Ford Fulkerson and Edmond Karp algorithm at addressing the problem of maximum flow at the cross-dock. The algorithm effectively provided the best result regarding iteration and time complexity. In addition, it also suggested the bottleneck paths of the network in determining the maximum flow.
La mise en art de la danse sabar sous le prisme anthropo-didactique
Authors: Doignon Aurélie
Published: September 2022

Cet article recense différentes formes de mises en art théorisées successivement et répondant à des formes artistiques diverses. Il met en évidence comment le sabar s’artifie peu à peu pour se diffuser sur les scènes internationales et ainsi bénéficier d’un marché de l’art africain contemporain. Ce passage à « l’art » pose les prémices d’une nouvelle structuration économique. Comme la danse Hip-hop, le sabar de « rue » s’institutionnalise, pour mieux se rapprocher du champ chorégraphique légitimé par les institutions publiques. Vont alors se développer de nouveaux modes et réseaux d’apprentissage, qui accompagnent cette mise en art internationale.
Everyday Mobility in an Urban Context of Uncertainty
Authors: Pires Helena , Pinto-Coelho Zara
Published: September 2022

At a time when all public access spaces in the city were closed, including cafes, the Public Market of Braga remained an open space, albeit with strict entrance control rules. The authors thus advance with the hypothesis that the PM was fundamental to guarantee the routine mobility of Braga's citizens, especially the most disadvantaged and, with that, to ensure their sense of hope and confidence in the future. Likewise, the PM is a place of resistance also from the perspective of sellers, on the one hand, maintaining its economic survival, albeit with visible difficulties, and on the other hand, ensuring the maintenance of a vital communication space. To reflect on the specific ways in which this phenomenon has occurred since January 2021 is the main objective of this chapter.
Portuguese Public Art Primary Itineraries
Authors: Abreu José Guilherme
Published: September 2022

Since public art works are normally city collections, park installations, or landscape interventions, in order to achieve a rich, diverse, and representative sample, it is necessary to hit the road, to ramble in the park, and to explore the city. So, the main assumption is that public art value should also be judged by the consideration of its environment context, its social substratum, and the means used for its discovery. A literary feeling is required for its encounter. A journalistic curiosity is required for its inquiry. Travelling by car enables these aims, for it remains a reliable way of getting to know a region or a country. Besides that, on a period of pandemic or post-pandemic times, travelling by car is a defensive form of travelling for it avoids the agglomerations of airports and railway stations.