bluuebunny/crossref_metadata_2025 huggingface dataset:
Orientación emprendedora, gestión de la calidad total y desempeño del sector hotelero de Baja California: un estudio cuantitativo
Authors: Ibarra Cisneros Manuel Alejandro , Vela Reyna Juan Benito , Ríos Nequis Eric Israel
Published: January 2022

El artículo tiene como finalidad analizar la relación entre la orientación emprendedora (OE) y el desempeño del sector hotelero en el estado de Baja California, así como el efecto mediador que tiene la gestión de la calidad total (GCT). El estudio adopta un enfoque cuantitativo, explicativo, de corte transversal, utilizando como técnica estadística el modelo de ecuaciones estructurales por medio de mínimos cuadrados parciales, aplicado a 94 hoteles de tres y más estrellas del estado durante el año 2020. Los resultados indican que la OE influye en un mejor desempeño de los hoteles, y la GCT ejerce un efecto de mediación sobre dicha relación. Se concluyeque una filosofía basada en la satisfacción del cliente, la innovación y la mejora continua de la calidad permite a los hoteles mejorar su estado y competitividad. La principal limitación del estudio fue su carácter transversal y no longitudinal.
Hallucinogens, alcohol and shifting leadership strategies in the ancient Peruvian Andes
Authors: Biwer Matthew E. , Álvarez Willy Yépez , Bautista Stefanie L. , Jennings Justin
Published: January 2022

In the pre-Columbian Andes, the use of hallucinogens during the Formative period (900–300 BC) often supported exclusionary political strategies, whereas, during the Late Horizon (AD 1450–1532), Inca leaders emphasised corporate strategies via the mass consumption of alcohol. Using data from Quilcapampa, the authors argue that a shift occurred during the Middle Horizon (AD 600–1000), when beer made fromSchinus mollewas combined with the hallucinogenAnadenanthera colubrina. The resulting psychotropic experience reinforced the power of the Wari state, and represents an intermediate step between exclusionary and corporate political strategies. This Andean example adds to the global catalogue documenting the close relationship between hallucinogens and social power.
Improvement of Cloud Computing Medical Data Protection Technology Based on Symmetric Encryption Algorithm
Authors: Zhao Nannan
Published: January 2022

The traditional data-protection method has the advantages of a long average secrecy time and low encryption efficiency in healthcare. This paper proposes an improved method of cloud-computing data-protection technology based on a symmetric encryption algorithm. According to the characteristics of cloud computing, a trusted communication channel for virtual machine monitoring is established on users and servers. The cloud-computing data-protection technology with four functional modules of “multi-copy protection,” “file access,” “integrity verification,” and “accountability” is deployed in the channel by using the improved symmetrical encryption differential-algebraic equations algorithm combined with the symmetrical encryption algorithms data encryption standard and advanced encryption standard to do the following: bind the identity of cloud-service providers; realize mixed encryption of plaintext segmentation; and add random interference information. These clusters are built on Hadoop to simulate the cloud-computing environment. The experimental results show that the average encryption and decryption times of this method are the best under different data amounts. At the same time, the encryption efficiency and throughput are over 95 %. The protection effect of this method on cloud-computing data is verified.
Measuring Stimulus-Evoked Neurophysiological Differentiation in Distinct Populations of Neurons in Mouse Visual Cortex
Authors: Mayner William G. P. , Marshall William , Billeh Yazan N. , Gandhi Saurabh R. , Caldejon Shiella , Cho Andrew , Griffin Fiona , Hancock Nicole , Lambert Sophie , Lee Eric K. , Luviano Jennifer A. , Mace Kyla , Nayan Chelsea , Nguyen Thuyanh V. , North Kat , Seid Sam , Williford Ali , Cirelli Chiara , Groblewski Peter A. , Lecoq Jerome , Tononi Giulio , Koch Christof , Arkhipov Anton
Published: January 2022

Despite significant progress in understanding neural coding, it remains unclear how the coordinated activity of large populations of neurons relates to what an observer actually perceives. Since neurophysiological differences must underlie differences among percepts,differentiation analysis—quantifying distinct patterns of neurophysiological activity—has been proposed as an “inside-out” approach that addresses this question. This methodology contrasts with “outside-in” approaches such as feature tuning and decoding analyses, which are defined in terms of extrinsic experimental variables. Here, we used two-photon calcium imaging in mice of both sexes to systematically survey stimulus-evoked neurophysiological differentiation (ND) in excitatory neuronal populations in layers (L)2/3, L4, and L5 across five visual cortical areas (primary, lateromedial, anterolateral, posteromedial, and anteromedial) in response to naturalistic and phase-scrambled movie stimuli. We find that unscrambled stimuli evoke greater ND than scrambled stimuli specifically in L2/3 of the anterolateral and anteromedial areas, and that this effect is modulated by arousal state and locomotion. By contrast, decoding performance was far above chance and did not vary substantially across areas and layers. Differentiation also differed within the unscrambled stimulus set, suggesting that differentiation analysis may be used to probe the ethological relevance of individual stimuli.
Sleep-Dependent Facilitation of Visual Perceptual Learning Is Consistent with a Learning-Dependent Model
Authors: Tamaki Masako , Sasaki Yuka
Published: January 2022

How sleep leads to offline performance gains in learning remains controversial. A use-dependent model assumes that sleep processing leading to performance gains occurs based on general cortical usage during wakefulness, whereas a learning-dependent model assumes that this processing is specific to learning. Here, we found evidence that supports a learning-dependent model in visual perceptual learning (VPL) in humans (both sexes). First, we measured the strength of spontaneous oscillations during sleep after two training conditions that required the same amount of training or visual cortical usage; one generated VPL (learning condition), while the other did not (interference condition). During a post-training nap, slow-wave activity (SWA) and sigma activity during non-rapid eye movement (NREM) sleep and theta activity during REM sleep were source localized to the early visual areas using retinotopic mapping. Inconsistent with a use-dependent model, only in the learning condition, sigma and theta activity, not SWA, increased in a trained region-specific manner and correlated with performance gains. Second, we investigated the roles of occipital sigma and theta activity during sleep. Occipital sigma activity during NREM sleep was significantly correlated with performance gains in presleep learning; however, occipital theta activity during REM sleep was correlated with presleep learning stabilization, shown as resilience to interference from postsleep learning in a trained region-specific manner. Occipital SWA was not associated with offline performance gains or stabilization. These results demonstrate that sleep processing leading to performance gains is learning dependent in VPL and involves occipital sigma and theta activity during sleep.

SIGNIFICANCE STATEMENTThe present study shows strong evidence that could help resolve the long-standing controversy surrounding sleep processing that strengthens learning (performance gains). There are two conflicting models. A use-dependent model assumes that sleep processing leading to performance gains occurs because of general cortical usage during wakefulness, whereas a learning-dependent model assumes that processing occurs specifically for learning. Using visual perceptual learning and interference paradigms, we found that processing did not take place after general cortical usage. Moreover, sigma activity during non-rapid eye movement (REM) sleep and theta activity during REM sleep in occipital areas were found to be involved in processing, which is consistent with the learning-dependent model and not the use-dependent model. These results support the learning-dependent model.
Cooperative Militarization
Authors: Lai Symbol
Published: January 2022

In 1951, six years after the United States defeated Japan and commenced the Occupation of Okinawa, the U.S. Civil Administration of the Ryukyus (USCAR) issued an ordinance in support of agricultural cooperatives. Despite the appearance of altruism, the move marked the emergence of the U.S. anticolonial empire, a form that advocated racial and ethnic self-determination even as it expanded the U.S. military presence. This article shows how U.S. policymakers in Okinawa borrowed from modernization theory to implement models to foster ethnic identification through economic development. Their plans sought to render the United States an ally to Okinawa freedom despite the devastating effects militarism had on the local landscape. Specifically, military plans posited frameworks like the Okinawan economy, which strategically turned the military into a partner without whom Okinawa could not modernize. The article further focuses on agriculture, an arena where the contradictions of the U.S. Occupation was most acute. It argues that rehabilitating the local cooperative network drew Okinawans into the military project, not only to paper over the U.S. colonial presence, but also to further the reach of military discipline.
Generosity Betrayed
Authors: Schencking J. Charles
Published: January 2022

Between 1941 and 1945, Americans expressed outrage over Japan’s attack on Pearl Harbor and subsequent military aggression. Numerous commentators, citizens, and opinion-makers looked beyond wartime atrocities and regularly vilified Japanese for the crime of “ingratitude.” Japan, they argued, had not merely attacked the country that had opened it to the outside world a century earlier, but had also declared war on the people who had saved its citizens in 1923. This article explores why, amidst the great whirlwind of wartime inhumanity, Americans harkened back to their 1923 humanitarian engagement with Japan following the Great Kantō Earthquake. Many did so, I suggest, to assist wartime mobilization, to lionize America’s righteous global stature, and to forge and reinforce constructions of their enemy’s sub-human character. Only humans, many angry Americans argued, understood or could express feelings of gratitude. Highlighting Japan’s supposed “ingratitude,” and their “betrayal” of America’s humanitarian generosity served as an emotive way to dehumanize all Japanese beyond the well-documented discussions of wartime aggression, treachery, or “innate racial characteristics.” Elites employed these constructions drawn from their enemy’s supposed ingratitude to help legitimate a brutal war waged without mercy against soldiers and civilians alike.
Diols as solvent media for liquefaction of corn stalk at ambient pressure
Authors: Zhang Yan , Liu Zhong , Hui Lanfeng , Wang Huimei
Published: January 2022

The proper selection of solvents is important during liquefaction of biomass process to produce fuel additives and valuable chemicals. In this study, novel low-cost liquefying agents such 1,2-propanediol (PG), diethylene glycol (DEG), and 1,4-butanediol (BDO), as well as the traditional liquefying agent, ethylene glycol (EG), were used. It was found that the liquefaction yield of corn stalk in the presence of PG at the optimum temperature of 180 °C was up to 99.2%, which was higher than that of the other three liquefying agents. The main components and functional groups of bio-oil with an acid catalyst were characterized by gas chromatography-mass spectrometry (GC-MS) and Fourier transform infrared spectroscopy (FTIR). The chief constituents of bio-oil were complex, and corn stalk could be effectively degraded with PG liquefaction. Moreover, the thermogravimetric analysis (TGA), X-ray diffraction (XRD), and scanning electron microscopy (SEM) data also revealed that the fiber structure of the liquefied corn stalk was destroyed and essentially liquefied during PG liquefaction. Consequently, all the results in the study successfully confirmed that PG can provide an efficient and environmental process for generating bio-oil from lignocellulosic mass at a low cost in liquefaction of corn stalk.
Утримання атомів і малих частинок оптичною пасткою, сформованою послідовностями зустрічних світлових імпульсів великої площі
Authors: Романенко В.І. , Яценко Л.П.
Published: January 2022

Запропоновано нову пастку для атомів і малих частинок, в основі якої – взаємодія атома з полем зустрічних імпульсів, що частково накладаються у часі. Суттєвою відмінністю від відомих аналогів є близька до адіабатичної взаємодія атома з полем, що дозволяє протягом того ж часу взаємодії передати атому значно більший імпульс і зменшити розмір пастки. Показано, що завдяки залежності світлового тиску від швидкості під час взаємодії з полем відбувається охолодження ансамблю атомів.
Mott−Hubbard Lacalization in a Model of the Electronic Subsystem of Doped Fullerides
Authors: Dovhopyaty Yu. , Didukh L. , Kramar O. , Skorenkyy Yu. , Drohobitskyy Yu.
Published: January 2022

A microscopical model of doped fulleride electronic subsystem taking the triple orbital degeneracy of energy states into account is considered within the configurational-operator approach. Using the Green function method, the energy spectrum at the integer band filling n = 1 corresponding to AC60 compounds is calculated. A possible correlation-driven metal-insulator transition within the model is discussed.
The Quantum Entropy as an Ultimate Visiting Card of the de Broglie–Bohm Theory
Authors: Fiscaletti D.
Published: January 2022

The de Broglie–Bohm theory is an interesting approach to quantum mechanics, which has the merit to describe atomic and subatomic processes without ascribing a special role to the observer and remaining faithful to the principle of causality and the motion dogma. In this article, a new suggestive interpretation of the de Broglie–Bohm theory is proposed. It is based on the idea that the quantum entropy is its ultimate visiting card in the quantum domain, in a relativistic curved space-time, and in the quantum gravity domain.
Пам’яті Костянтина Миколайовича Степанова
Authors: Азарєнков М.О.
Published: January 2022

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El impasse entre la necesidad y la indiferencia. Un ejercicio metacrítico de “El artificio, la locura, la obra”, de Jacques Rancière
Authors: Mosquera Mariano Ernesto
Published: January 2022

El objetivo del siguiente trabajo es proponer una lectura metacrítica, es decir, crítica de la crítica, del pensamiento sobre el arte y la literatura del francés Jacques Rancière. La hipótesis de un texto paradigmático será imbricada y reproblematizada bajo unidades crecientemente mayores (libro, sistema de conceptos, diálogos con otros sistemas). Precisamente, a partir de las aristas que revelan la polémica de Rancière con Jean-François Lyotard y Alain Badiou, se procederá a una evaluación general de los límites y las potencias de la teoría de los regímenes del arte.
Dosimetry of radiopharmaceuticals used in adult patients with suspected pulmonary embolism
Authors: Vasquez-Arteaga Marcial , Vega-Carrillo Hector , Rodriguez-Benites Carlos , Castillo Carlos , Rodriguez Huber , Chanduvi Roger , Chirinos Carlos
Published: January 2022

The absorbed dose of radiopharmaceuticals is estimated in adults with suspected pulmonary embolism explored by ventilation/perfusion studies. For pulmonary ventilation studies 81mKr, 133Xe, 99mTc (Technegas)-aerosol and 99mTc (DTPA)-aerosol are used. For perfusion agents, 99mTc(MAA), 99mTc (MSA) (macroaggregates and albumin microspheres) are used. For the dose calculation, the MIRD methodology and the anthropomorphic representation of the biokinetic organs of Cristy-Eckerman are used. In ventilation/perfusion studies, the lowest dose absorbed by the lungs with suspected embolism is due to 81mKr/ 99mTc (MSA), and the highest dose is due to 99mTc (Technegas)/99mTc (MAA) calculated for activities of 150 MBq for perfusion agents and 40 MBq for ventilation agents.
Prótesis de mano controlada con señales EEG
Authors: Cruz-Rodríguez Andrés M. , Sánchez-Machet Hernán
Published: January 2022

En este trabajo, se describe cómo las ondas cerebrales producidas en el lóbulo lateral izquierdo del cerebro humano y detectadas con un auricular NeuroSky MindFlex fueron usadas para controlar voluntariamente una prótesis de mano.

En primera instancia, las señales  EEG (electroencefalográficas) son detectadas por una BCI (Interfaz de control cerebral) y tras ser analizado con la ayuda de un microcontrolador ARDUINO su espectro de frecuencias es dividido en rangos Alfa, Beta, Theta y Gamma. Como resultado del análisis EEG, se encuentra que el parpadeo voluntario  afecta principalmente los valores de potencia relacionados con la banda alfa , tal que finalmente se utiliza esta banda de frecuencias para dirigir en forma voluntaria y controlada los movimientos de abducción y aducción de los dedos de la prótesis.
Geotecnologías aplicadas al análisis de la fragilidad ambiental a los procesos erosivos
Authors: Silva Edson Rodrigo dos Santos da , Oliveira Víncler Fernandes Ribeiro de , Vick Erivelton Pereira , Lima César Gustavo da Rocha , Bacani Vitor Matheus , Chávez Eduardo Salinas
Published: January 2022

Los procesos erosivos tienen graves impactos sobre el ambiente, generando importantes pérdidas económicas, sociales y de biodiversidad. Este trabajo tiene como objetivo analizar la fragilidad ambiental asociada a los procesos erosivos en la cuenca del arroyo La Onça, en Coxim, Mato Grosso do Sul–Brasil. La metodología se sustenta en la cartografia de los suelos, la inclinación de las pendientes, las áreas prioritarias para la conservación de la biodiversidad y la intensidad de la lluvia, con vistas a evaluar la fragilidad potencial que, unida al mapa del uso y cobertura de la tierra por la superposición booleana ponderada, permite obtener la fragilidad ambiental. Para validar este modelo se realizó la identificación de los sitios con erosión, a partir de una imagen de alta resolución y el levantamiento de las áreas llamadas “suelos con exposición extrema” mediante la identificación de áreas que presentan el menor grado de protección del suelo. Los resultados muestran el predominio en la cuenca de las zonas con fragilidad ambiental media (59,61 %) y alta (23,66 %), asociada a una gran concentración de los procesos erosivos en áreas de baja cobertura vegetal, identificadas en el mapa de uso y cobertura de la tierra como áreas de pastos.
Redes comunitarias de cuidadores: acompañamiento a la movilización ciudadana para el cuidado compasivo
Authors: Ríos Laura Daniela , Cañaveral Juan Felipe , Krikorian Alicia
Published: January 2022

Objetivo Presentar un proceso de aproximación y movilización de la comunidad para la creación de una red barrial de cuidadores en Medellín, Colombia.

Métodos La sistematización de la promoción de la red barrial de cuidadores se realizó siguiendo las fases de acompa´ñamiento según la clínica comunitaria: aproximación a la comunidad, generación de formas terapéuticas clínico-comunitarias y comprensión del proceso desde esta perspectiva. Se empleó la rehabilitación basada en la comunidad como método de trabajo.
Resultados La necesidad de formación para el cuidado y la organización familiar son los mayores retos de los cuidadores de la comunidad. Los participantes tienen presente la importancia de crear redes de apoyo y han adquirido conocimientos prácticos que les son útiles en la cotidianidad y que sientan las bases para la futura construcción de red.
Conclusiones La experiencia de construcción de una red barrial genera reflexiones e interrogantes alrededor de las metodologías utilizadas y de las necesidades comunitarias reales alrededor del cuidado. A pesar de las dificultades en relación con la acción colectiva, la cohesión grupal y la asistencia a los encuentros, el acompañamiento que se realizó ha dejado reflexiones para los cuidadores y conocimientos prácticos en torno al cuidado.
Local Rural Holidays of Russian Peasants as a System of Sacred Communication (based on the materials of the Nizhny Novgorod region)
Authors: Galtseva Olga V.
Published: January 2022

Introduction. The article proposes a worldview approach for typologizing local religious holidays of the rural population of the Nizhny Novgorod region, in which they are considered as a system of communication between the human collective and the divine. Results. The life of the Russian peasant was built up in a constant dialogue with the divine, the mediators of this dialogue were the patron saints of the community, communication with whom was carried out through local holidays established in their honor. Various forms of celebration correlated in the worldview of Russian peasants with different reasons for turning to the patron saints, which allowed the author to distinguish two types of local religious holidays that differ in their functions: petition holidays and thanksgiving holidays. Discussion and Conclusion. The system of local religious holidays was not only an accessible mechanism of religious practices for Russian peasants, but also a traditional way of life support. The holidays of supplication and the holidays of thanksgiving, complementing each other in a number of functions, were closely connected with the life of the peasant community. The former was responsible for earthly goods and united people using common natural resources in religious communication, the latter ensured the spiritual kinship of members of tribal groups united in a single veneration of their patron saint. Every significant event in the secular and spiritual life of the peasant world found its expression in the local holiday calendar.
Student Migration in Terms of Social and Philosophical Reflection
Authors: Ryabova Marina Е.
Published: January 2022

Introduction. Student migration exists over the whole period of society development and by the second half of the 20th century it is becoming a mass social phenomenon. A constant society complication under influence of information technologies gives student migration other forms. Considering the fact that student migration is a component part of unified educational process, its separate stages make actual differentiation of migrant students mobile behaviour, including localization of living environment, educational institution, educational activities and the interactive nature of training. The objective of the article is to attempt to explicate the phenomenon of student migration in the field of social philosophy, to consider its accompanying positive and negative aspects in the prism of distant context. Materials and Methods. The methodological basis of the study is interdisciplinary approach which allows to distinguish and describe the relationship of the phenomenon under study. Solution of research problems was provided by critical analysis intercomplementary methods and by interpretation of social reality phenomena based on the dialectic idea of removing the one-dimensionality of cognition of the globalizing educational space. The Results. The peculiarity of student migration was revealed consisting in 1) in the restriction of free movement in space; 2) in the forced relocation to the virtual reality of the digital format, which caused the imaginary territorial mobility; 3) in the weakening of direct contact with the host educational environment, leading to dissonance with the existing state of things; 4) in strengthening the cross-border nature of education, which allows to expand international cooperation with different countries. Discussion and Conclusions. Expected effect of student migration distant forms realization consists in a new interpretation of the subject of the universal, changing the attitude to migration. The media resonance that occurs everywhere contributes to the formation of prerequisites for a positive perception of the image of a migrant. Academic mobility caused by today’s modification of reality, was determined by the digitalization megatrend of educational institutions, which affected all aspects of life. Remote technologies have mitigated the problem of migrants’ adaptation to another cultural environment, neutralized the consequences of socio-cultural stress, which is usually experienced by the subject of both external and internal migration. Practical experience of remote forms realization of work with the subject of educational migration has shown the indisputability of universal involvement in the movement to a new type of knowledge production, the most important role in which is played by pragmatic situativeness and the powerful presence of digital environment tools.
Conceptual Foundations of Civilizational Transformations in Contemporary Social Philosophy
Authors: Malchenkov Stanislav A.
Published: January 2022

Introduction. The relevance of the analysis of civilizational transformations in Russia is explained, first of all, by the vast vicissitudes of its political, economic and socio-cultural development in recent decades. The importance of the topic is growing, since the content of the philosophical problem in the period of building a multipolar world is supplemented by geopolitical components. Methods. The work used historical and dialectical methods, as well as systems analysis. Results. In modern scientific research, the ideas of linear and cyclical development are no longer opposed to each other as rigidly as was customary in the 19th – 20th centuries. The development of the concept of “axial time” by K. Jaspers leads to the idea that local civilizations, throughout their development, undergo significant transformations, while maintaining their own uniqueness. The concept of “civilizational transformations” is closely related to the category of “social transformations” that has developed in the scientific literature, however, it focuses primarily on cultural changes that cover the spiritual sphere of society. Discussion and Conclusion. At present, there is a need to include the concept of “civilizational transformations” in the scientific circulation, which in its most general form describes all possible changes in civilization on the way of its development. Civilizational transformations not only change the social code in the spiritual sphere, but also significantly affect the transformation of social, political and economic institutions.
PI CONTROLLER FOR CONTROLLING A THREE-PHASE INVERTER OF A PV SYSTEM CONNECTED TO THE ELECTRICAL NETWORK
Authors:   Materials and Renewable Energy Research Unit (URMER), University Aboubekr Belkaid Tlemcen BP 119 - 13000, Algeria, BOURI Sihem , BOUDAOUD Tariq ,   Department of Electrical and Electronic Engineering, Faculty of Technology, University Aboubekr Belkaid Tlemcen BP 119 - 13000, Algeria, BOUDJELAL Tayeb ,   Department of Electrical and Electronic Engineering, Faculty of Technology, University Aboubekr Belkaid Tlemcen BP 119 - 13000, Algeria
Published: January 2022

In order to improve the efficiency of photovoltaic panels it is necessary to introduce the technique of Maximum Power Point (the technique of the MPPT). In the literature, several strategies are mentioned, among which the perturbation and observation (P&O) algorithm. The aim of this work is to a simulation study in MATLAB of a photovoltaic panel connected to the network using DC-DC and DC-AC converters. DC Boost converter is checked by the MPPT command to adjust the output voltage of the photovoltaic panel and maximize the power produced by the photovoltaic panel. The PI controller is used to control the inverter three-phase to make the connection of the photovoltaic panel to a three-phase electrical network.
Menopause and its management: A review
Authors: Molvarec A. , Czegle I.
Published: January 2022

Menopausal transition (premenopause) is the phase in the ageing process of women representing the transition from the reproductive stage of life to the non-reproductive stage. With improvements in average life expectancy, women live an increased proportion of their lives in the postmenopause. The consequences of oestrogen loss are the early symptoms (psychological and vasomotor), the genitourinary syndrome (intermediate), as well as postmenopausal osteoporosis with increased risk of fractures and cardiovascular diseases (late). The diagnosis of climacteric syndrome is based on typical clinical symptoms. Perimenopausal women should understand physiological changes occurring in menopausal transition. They should be encouraged to live a healthy lifestyle. Menopausal hormone therapy is indicated for relief of the acute symptoms of menopause and for treatment of urogenital atrophy. It should be administered in the lowest effective dose for the shortest period of time. The treatment should be initiated before the age of 60 years or within 10 years after menopause in order to decrease its risks. The benefit/risk profile needs to be individually re-assessed every year.
Characteristics of the ageing skin, xerosis cutis and its complications
Authors: Görög A. , Bánvölgyi A. , Holló P.
Published: January 2022

People in the developed countries are living longer. Geriatric dermatology is playing an increasingly important role as chances of developing skin-related problems increase with their ageing. Skin ageing is induced by two main processes: intrinsic and extrinsic. Extrinsic ageing is caused by environmental factors such as sun exposure, smoking, alcohol consumption, air pollution, and poor nutrition. Intrinsic ageing reflects the genetic background and depends on time. The aged skin is characterised by the appearance of dryness, atrophy, wrinkles, pigmented lesions, patchy hypopigmentation, and elastosis. This article provides an overview of skin ageing processes and common conditions found in the elderly persons such as xerosis, pruritus, and eczema.
EXPRESSIVE SPEECH ACTS ON NETIZENS’ COMMENTS IN JOE BIDEN’S INSTAGRAM ACCOUNT
Authors: Indriyana Mega Bunga , Nurulaen Yuyun , Ardiansyah Erlan Aditya
Published: January 2022

United States presidential election 2020 is the most awaited event for the citizens of the United States. People usually want to get to know how good the presidential candidates are by searching for information about the presidential candidates. Checking the presidential candidates’ social media is one way to find outtheirprofiles.Joe Biden as one of the presidential candidates uses the growing popularity of Instagram to gain public attention by posting some of his responses to current issues and promoting himself as the next President of the United States. It made Joe Biden’s Instagram account is filled with netizens’ comments. This research aims to identify the expressive speech acts that appear in Joe Biden's comments published on September 13, 2020, to January 20, 2021, and to describe the reasons for their use of these expressive speech acts. The instrument of this research is a document.  The data were collected by browsing the comments on Joe Biden’s Instagram post, then the data were selected, and identified the expressive speech acts used by netizens, then the research showed the findings of the research by presenting data and analysis. There are 26 data contained an expressive speech act, in which 10 data as expressive of thanking, 3data as expressive of congratulating, 5 data as expressive of wishing, 8 data as expressive of attitude. The expressive speech act of thanking is the most dominant type of expressive speech act found on the netizens’ comments of Joe Biden Instagram post. In conclusion, netizens’ comments contained the expressive speech act of thanking since netizens appreciated the good things that Joe Biden had planned when he ran for President of the United States. Joe Biden frequently posts his thoughts on various issues and promises a good solution in the future. Netizens expressed their gratitude for Joe Biden because they felt they had found a leader who cared about society.
Conflicts of Social Class in Movies
Authors: Marwati Sopa , Holis Nur , Assiddiqi Hasbi
Published: January 2022

Social conflict happens due to diversities of opinion, culture, and ideology in the certain society. It can be discovered in every stratum of society level, social conflict can occur in the upper, middle and lower class. This study explained social class conflicts which were taken from two movies: Parasite (2019) and Joker (2019). This study uses a comparative literary theory by Sussan Bassnet. Th study also used focused on the social class conflict theory by Lewis Coser and the classification of people by Karl Max. The method used in this research is descriptive in technique of analyzing the data was obtaining by categorizing, describing and interpreting the data, then making conclusion. The result showed that in the Parasite and the Joker movies contained of social class conflict, it occurred inter classes of people in a society. based on analysis, it concluded that both of the movie has differences in the social class conflict and the causes of the conflict itself. However, both movies have the same consequences of the conflict. In the Parasite movie social class conflict occurred inter the lower class. While, in the Joker movie, the social class conflict occurred between the upper and lower class.
ESTIMASI KARBON PADA MANGROVE DI KABUPATEN BELITUNG PROVINSI KEPULAUAN BANGKA BELITUNG
Authors: Karyati Isviana Dwi , Zeny Acacia , Zulkifli Dadan , Irawan Hendra
Published: January 2022

Mangrove merupakan salah satu formasi hutan yang habitatnya berada di perbatasan daratan dan lautan. Secara umum mangrove berfungsi sebagai tempat berkumupulnya berbagi macam biota laut, tempat mencari makan, tempat pemijahan, dan juga sebagai tempat asuhan berbagai macam biota. Mangrove juga memiliki fungsi secara fisik, yaitu sebagai penahan gelombang tsunami, panahan amukan angin dan untuk menahan erosi. Hutan mangrove memiliki peran yang sama dengan hutan yang lainnya untuk penyerap karbon dioksida (CO2) sehingga dapat membantu dalam pencegahan perubahan iklim. Mangrove memberi sumbangan sangat potensial untuk mengurangi emisi karbon dibanding hutan hujan tropis. Tujuan dari penelitian ini adalah untuk menduga serapan karbon (C) pada vegetasi mangrove di kawasan mangrove Kabupaten Belitung. Penelitian ini dilakukan pada tanggal 2 Maret sampai 15 Mei 2020, di kawasan mangrove Kecamatan Sijuk, Kecamatan Tanjung Pandan dan Kecamatan Membalong. Metode sampling yang digunakan dalam penelitian ini adalah Metode Purposive sampling untuk menentukan tiga stasiun pengamatan. Hasil dari penelitian ini menunjukkan bahwa mangrove pada Kecamatan Sijuk dengan simpanan carbon 182,59 Ton C/ha dengan kerapatan 1.650,13 pohon/ha kemudian Kecamatan Membalong dengan simpanan carbon 168,62 Ton C/ha dengan kerapatan 1411,82 pohon/ha dan simpanan carbon terendah terdapat pada Kabupaten Tanjung Pandan dengan simpanan carbon 38,56 Ton C/ha dengan kerapatan 1.249,33 pohon/ha. Serapan karbon mangrove Rhizophora apiculata sebesar 217,28 g/pohon dan Rhizophora mucronata 441,8 g/pohon.
Supervised evolutionary learning: Use of gradient histogram & particle swarm algorithm to detection & tracking pedestrian in sequence of infrared images
Authors: Zare Karim , Shahrokhi Seyedmohammad , Amini Mohammadreza
Published: January 2022

Recently, tracking and pedestrian detection from various images have become one of the major issues in the field of image processing and statistical identification.  In this regard, using evolutionary learning-based approaches to improve performance in different contexts can greatly influence the appropriate response.  There are problems with pedestrian tracking/identification, such as low accuracy for detection, high processing time, and uncertainty in response to answers.  Researchers are looking for new processing models that can accurately monitor one's position on the move.  In this study, a hybrid algorithm for the automatic detection of pedestrian position is presented.  It is worth noting that this method, contrary to the analysis of visible images, examines pedestrians' thermal and infrared components while walking and combines a neural network with maximum learning capability, wavelet kernel (Wavelet transform), and particle swarm optimization (PSO) to find parameters of learner model. Gradient histograms have a high effect on extracting features in infrared images.  As well, the neural network algorithm can achieve its goal (pedestrian detection and tracking) by maximizing learning.  The proposed method, despite the possibility of maximum learning, has a high speed in education, and results of various data sets in this field have been analyzed. The result indicates a negligible error in observing the infrared sequence of pedestrian movements, and it is suggested to use neural networks because of their precision and trying to boost the selection of their hyperparameters based on evolutionary algorithms.
Uczciwość jako wartość w przestrzeni organizacyjnej
Authors: Czajkowska-Białkowska Maria
Published: January 2022

Objective: To examine the important problem of honesty in organisational behaviour, and to answer questions concerning the respondents’ opinions on dishonest behaviours of two groups of organisational participants: managers / directors and employees / subordinates.Research Design & Methods: The research was conducted using questionnaire adapted for the research.Findings: The results show the difference between the behaviours of managers/directors and those of employees/subordinates. The research indicates that particular dishonest behaviours are more frequent among managers/directors than among employees/subordinates, although the findings are not completely conclusive.Implications / Recommendations: The conclusions provide a basis for further research involving in-depth studies on the motives for the occurrence of such behaviours by members of both groups in an organisation.Contribution: The article concerns the value of honesty in organisations in the context of the exercise of power. Drawing attention to the problem, which affects all members of an organisation to a different extent, may help to shape ethical attitudes of future managers and, in consequence, to manage the organisation better.
Wpływ pandemii COVID-19 na rentowność sektora bankowego w Polsce
Authors: Ostrowska Aleksandra
Published: January 2022

Objective: To assess the impact of the COVID-19 pandemic on the profitability of the banking sector in Poland.Research Design & Methods: The methodologies included critical literature analysis and statistical data analysis.Findings: The profitability ratios of the banking sector in Poland deteriorated during the COVID-19 pandemic.Implications/Recommendations: The economic slowdown due to government restrictions introduced in response to the COVID-19 pandemic took a toll on the banking sector in Poland, which has been weakening for several years. However, the factor that determined the decrease in the financial results and, consequently, the profitability of the banking sector in Poland to the greatest extent was the increase in provisions and write-offs for the legal risk of FX housing loans. This situation calls for corrective measures.Contribution: An assessment of the effects of a COVID-19 pandemic on the banking sector in Poland.
Melatonin and cardiovascular disease: from mechanisms of action to potential clinical use (literature review)
Authors: Drapkina O. M. , Kontsevaya A. V. , Budnevsky A. V. , Ovsyannikov E. S. , Drobysheva E. S. , Bolotskih V. I. , Makeeva A. V. , Lushchik M. V.
Published: January 2022

Cardiovascular disease remains the most relevant public health problem. Most cardiovascular diseases are associated with an atherosclerosis, the development of which is associated with inflammation and endothelial dysfunction. Melatonin is a neurohormone that is synthesized mainly in the pineal gland and plays a central role in the regulation of sleep and some other body cyclic processes. For a long time, melatonin was perceived as a substance that is effective in the treatment of circadian cycle impairments. At the same time, a large number of studies have accumulated recently that demonstrate a wider range of its biological effects, including anti-inflammatory, antioxidant, antihypertensive and, possibly, hypolipidemic. The review includes current data from experimental and clinical studies demonstrating the cardioprotective effects of melatonin in atherosclerosis, myocardial ischemia, and heart failure.
Reconstruction of infrarenal abdominal aortic occlusion using the Culotte stenting technique: a case report
Authors: Feshchenko D. A. , Zasypkin G. S. , Rudenko B. A. , Vasiliev D. K. , Shukurov F. B. , Shanoyan А. S. , Drapkina O. M.
Published: January 2022

Patients with clinically significant infrarenal abdominal aortic atherosclerosis are often encountered in the clinical practice of vascular and endovascular surgeons. In the absence of timely treatment, the ability to work and life quality of patients are sharply reduced, and in some cases, patients require limb amputation. Until recently, the only treatment option for such a lesion was an open surgery. However, a good skill level of endovascular surgeons and the device availability allow today to perform minimally invasive operations with comparable effectiveness and greater safety in comparison with open surgery. We present a case report of successful endovascular treatment of aortic occlusion involving the right and left common and external iliac arteries using Culotte stenting technique with further 12-month follow-up.
Quality management of biosampling and data collection from women at different stages of pregnancy for the search for early biomarkers of preterm birth: predicting errors and risk management
Authors: Pachulia O. V. , Illarionov R. A. , Vashukova E. S. , Yurkina N. A. , Butenko M. G. , Postnikova T. B. , Bespalova O. N. , Glotov A. S.
Published: January 2022

The main condition for ensuring effective sampling for creating a bioresource collection is quality management, which implies careful planning and predicting errors at all stages. Risk management of samples and data loss is ensured by correct logistics, circumspect algorithms and standardization of processes. Features of the logistic processes for creating biosample collection from the pregnant women are described in this article.
Fatores associados à morbidade materna grave em Ribeirão Preto, São Paulo, Brasil: estudo de corte transversal
Authors: Andrade Magna Santos , Bonifácio Lívia Pimenta , Sanchez Jazmin Andrea Cifuentes , Oliveira-Ciabati Lívia , Zaratini Fabiani Spessoto , Franzon Ana Carolina Arruda , Pileggi Vicky Nogueira , Braga Giordana Campos , Fernandes Mariana , Vieira Carolina Sales , Souza João Paulo , Vieira Elisabeth Meloni
Published: January 2022

Este estudo investigou os fatores associados à morbidade materna grave entre mulheres atendidas em maternidades públicas do Município de Ribeirão Preto, São Paulo, Brasil. Trata-se de um estudo quantitativo, analítico, transversal. Participaram 1.098 puérperas com parto em uma das quatro maternidades públicas do município. A coleta de dados ocorreu entre 3 de agosto de 2015 e 2 de fevereiro de 2016, a partir de entrevistas face a face, obtenção de informações dos prontuários e dos cartões da gestante. Para a análise de dados, considerou-se como variável dependente a ocorrência de morbidade materna grave, ou seja, quando a mulher era classificada como near miss materno ou condição potencialmente ameaçadora à vida a partir dos critérios de elegibilidade da Organização Mundial de Saúde. Calculou-se a razão do near miss materno, odds ratio (OR), intervalo de 95% de confiança (IC95%) e regressão logística múltipla. A razão do near miss materno foi de 3,6 casos por mil nascidos vivos. As complicações ocorreram principalmente na gravidez (53,8%) e os distúrbios hipertensivos foram os mais frequentes (49,4%). A análise de regressão múltipla mostrou associação entre morbidade materna grave e gestação de risco (OR = 4,5; IC95%: 2,7-7,7) e com trabalho de parto induzido (OR = 2,1; IC95%: 1,2-3,9). A ocorrência de morbidade materna grave, principalmente na gestação, com destaque para as síndromes hipertensivas, aponta para a necessidade de melhor rastreamento e manejo da elevação dos níveis pressóricos no pré-natal. A associação entre morbidade materna grave e gestação de risco também remonta ao pré-natal, para a demanda de uma maior atenção às mulheres classificadas como risco gestacional. A qualidade da assistência é ponto chave para o enfretamento da morbimortalidade materna no país.
Diagnostic accuracy of a SARS-CoV-2 rapid test and optimal time for seropositivity according to the onset of symptoms
Authors: David Caroline Nespolo de , Varela Fernanda Hammes , Sartor Ivaine Tais Sauthier , Polese-Bonatto Márcia , Fernandes Ingrid Rodrigues , Zavaglia Gabriela Oliveira , Kern Luciane Beatriz , Ferreira Charles Francisco , Bastos Gisele Alsina Nader , Pitrez Paulo Márcio , Almeida Walquiria Aparecida Ferreira de , Porto Victor Bertollo Gomes , Zavascki Alexandre Prehn , Stein Renato Tetelbom , Scotta Marcelo Comerlato
Published: January 2022

Point-of-care serological tests for SARS-CoV-2 have been used for COVID-19 diagnosis. However, their accuracy over time regarding the onset of symptoms is not fully understood. We aimed to assess the accuracy of a point-of-care lateral flow immunoassay (LFI). Subjects, aged over 18 years, presenting clinical symptoms suggestive of acute SARS-CoV-2 infection were tested once by both nasopharyngeal and oropharyngeal RT-PCR and LFI. The accuracy of LFI was assessed in periodic intervals of three days in relation to the onset of symptoms. The optimal cut-off point was defined as the number of days required to achieve the best sensitivity and specificity. This cut-off point was also used to compare LFI accuracy according to participants’ status: outpatient or hospitalized. In total, 959 patients were included, 379 (39.52%) tested positive for SARS-CoV-2 with RT-PCR, and 272 (28.36%) tested positive with LFI. LFI best performance was achieved after 10 days of the onset of symptoms, with sensitivity and specificity of 84.9% (95%CI: 79.8-89.1) and 94.4% (95%CI: 91.0-96.8), respectively. Although the specificity was similar (94.6% vs. 88.9%, p = 0.051), the sensitivity was higher in hospitalized patients than in outpatients (91.7% vs. 82.1%, p = 0.032) after 10 days of the onset of symptoms. Best sensitivity of point-of-care LFI was found 10 days after the onset of symptoms which may limit its use in acute care. Specificity remained high regardless of the number of days since the onset of symptoms.