bluuebunny/crossref_metadata_2025 huggingface dataset:
Perfil demográfico de pacientes pertenecientes al Programa VIDA de la comuna de Melipilla
Authors: Arrosamena P. , Cid A. , Espinoza C. , Frías F. , Fritzsche N.
Published: December 2024

Introducción: El Programa VIDA garantiza la atención domiciliaria a pacientes que no están en condiciones de asistir al consultorio. Es ejecutado por los internos de medicina de la Universidad de Chile en conjunto con el equipo de salud de los Centros de Salud (CESFAM San Manuel, CESFAM Pomaire, Posta Rural Bollenar y Posta Pahuilmo).
Objetivos: General: Caracterizar demográficamente a la población beneficiaria del Programa VIDA, desde el 25 de enero al 19 de febrero de 2016. Específicos: 1) Describir a la población según sexo, edad, grado de dependencia. 2) Describir las patologías más prevalentes que la afectan. 3) Describir motivos de ingreso al programa.
Materiales y Métodos: Estudio descriptivo, muestreo no probabilístico. Datos obtenidos de ficha clínica, usando medidas de tendencia central y desviación estándar.
Resultados: Población total atendida de 113 pacientes. Distribución según: Sexo: 51% mujeres-49% hombres. Edad: 47,8% >80 años, 40% 60 - 79 años, y 13,2% < 60 años. Indice Barthel: 56% leves, 11% moderados y 31% severos. Ingreso: Accidente Cerebrovascular (ACV) secuelado 30%, demencia 14% y artrosis 12%. Diagnósticos: Hipertensión Arterial (HTA) 74,3%, artrosis 45,1% y Diabetes mellitus 2 (DM2) 33,6%. Cuidadores: 90% mujeres. Visitas: mensual (57%), bimensual (27%), trimestral (14%) y cuatrimestral (4%).
Discusión: La caracterización de los pacientes permite obtener una panorámica del impacto del programa. Ayudará a orientar esfuerzos hacia patologías prevalentes. Se debe dirigir la mirada hacia los cuidadores, siendo necesario contar con índice Zarit actualizado. Sería interesante evaluar si el impacto es tal, que justifique su implementación en otras zonas del país.
Glaucoma de ángulo cerrado: actualización de conocimientos en Atención Primaria de Salud
Authors: Cruz S. , Villalón J.
Published: December 2024

El glaucoma es una neuropatía que involucra una atrofia de la cabeza del nervio óptico, acompañada de alteraciones visuales características. Corresponde a la segunda causa de ceguera a nivel mundial, y la primera que causa ceguera irreversible. La clasificación del glaucoma es bastante amplia, actualmente las formas más frecuentes a nivel mundial son el glaucoma primario de ángulo abierto, el glaucoma primario crónico de ángulo cerrado, y glaucoma de exfoliación.
El glaucoma de ángulo cerrado se caracteriza por el cierre del ángulo iridocorneal de la cámara anterior, y puede ser primario o secundario dependiendo la presencia o ausencia de factores asociados que contribuyan al aumento de la presión. Los factores de riesgo asociado a glaucoma de ángulo cerrado incluyen la genética, la edad, sexo femenino, hipermetropía, algunos medicamentos, la raza y factores anatómicos. El mecanismo fisiopatológico más frecuente en el glaucoma de ángulo cerrado corresponde al bloqueo pupilar, que impide el flujo adecuado del humor acuoso a través de la pupila, aumentando la presión intraocular. La clínica varía dependiendo de la rapidez de instalación y del grado de elevación de la presión intraocular, pudiendo presentar desde una disminución de la visión, cefalea, dolor ocular severo, hasta incluso ser asintomático. Se considera una emergencia oftalmológica cuando es de rápida progresión. El oftalmólogo debe evaluar ambos ojos, y realizar el diagnóstico mediante gonioscopia. Existen tratamientos médicos y quirúrgicos, sin embargo el de elección es la iridotomía periférica con láser. El pronóstico visual depende del manejo inicial y de la rápida derivación.
Lesiones de balonmano en Torneos Inter Facultades 2018 en la Universidad de Chile
Authors: De los Santos Diego , Aguilera Anastasia , Barraza Ana María , Ocampo Javiera
Published: December 2024

Introducción: En la Universidad de Chile se desarrollan competencias deportivas internas entre los diversos campus y/o facultades. Las competencias más masivas son los Torneos Inter Facultades (TIF), en los que se realizan partidos de múltiples deportes, dentro de los cuales se incluye el balonmano. Durante el año 2018 se realizaron un total de 18 fechas.
Objetivos: Caracterizar las atenciones de salud de los Torneos-Inter-Facultades (TIF) de balonmano, definiendo el segmento corporal y el tipo de lesión más frecuente, separados por sexo.
Materiales y Métodos: Estudio transversal descriptivo. Se consideraron todos los partidos entre Mayo y Diciembre del año 2018 (78,75% de cobertura), realizados en el Campo Deportivo Juan Gómez Millas. Se cubrieron un total de 63 partidos entre competencias masculinas y femeninas. Se consideró como criterio de inclusión la consulta espontánea por lesiones generadas en la competencia o la reagudización de lesión previa durante la competencia, se excluyó a quienes no cumplieran estos requisitos.
Resultados: Se realizaron 13 atenciones: 5 mujeres y 8 hombres. El promedio de edad de mujeres fue de 23.4 años y de hombres 21.5 años. En ambos géneros predominaron las lesiones de extremidad inferior (60% y 62.5% respectivamente) seguidas por las de extremidad superior (40%) en mujeres, y las de cabeza y cuello (37.5%) en hombres. En el género femenino predominaron los esguinces con un 40% de las lesiones, mientras que en el masculino predominaron las contusiones (50%).
Discusión: Se obtuvieron datos similares a los descritos en otras series de atenciones de balonmano. Como principal limitación del registro realizado se encuentra el bajo número de atenciones y considerar solo la conducta espontánea de los participantes.
COVID-19: patogénesis del daño multisistémico
Authors: Yévenes Álvaro , González Lucas
Published: December 2024

Sepsis se define como una infección asociada a daño orgánico a distancia distinto del sitio de infección. Sin embargo, los mecanismos fisiopatológicos del SARS-CoV-2 son más amplios que las comunes infecciones bacterianas para las cuales los mecanismos son bastante comprendidos. La infección por SARS-CoV-2 puede activar respuestas inmunitarias innatas y adaptativas. Sin embargo, las respuestas inflamatorias innatas incontroladas y las respuestas inmunitarias adaptativas deterioradas pueden provocar daños tisulares, tanto a nivel local como sistémico. Por otro lado, se ha estudiado en autopsia la presencia viral en distintos órganos lo que implica no solo daño a distancia como en sepsis sino también por replicación viral.
Development Of ISCM Manasa Mini-Social Cognition And Emotions Assessment (ISCM Manasa-Mini-SEA) Test
Authors: M.D., Ph.D. Rama Reddy Karri, , M.D., D.Sc. Ananda Balayogi Bhavanani , Ph.D Meena Ramanathan , M.D Vijaya Gopal Mopidevi
Published: December 2024

Background:This article introduces the development, adaptation, and validation of the ISCM-Manasa Mini-SEA, an assessment tool tailored to evaluate social cognition among individuals with schizophrenia within the Indian population.

Methods:The study delineates the adaptation process, meticulous cultural relevance considerations, and rigorous validation methodologies employed. A diverse sample of 770 individuals diagnosed with chronic schizophrenia and 150 healthy controls accompanying the patients was included.

Results:The findings highlight the tool's dual strength: scientific robustness and cultural relevance, making it well-suited for India's multifaceted population.

Conclusions:The ISCM Manasa Mini-SEA represents a significant advancement in assessing social cognition in schizophrenia within the Indian cultural setting. Its development and validation underscore the critical need for culturally sensitive assessment tools, offering promise for improving diagnostic processes, intervention strategies, and research on schizophrenia in India.
SYSTEM OF CIVIL PROCEDURAL ACTS: CONCEPT AND ELEMENTS
Authors: MIKHAILOVA E.V.
Published: December 2024

In the article, all civil procedural acts are considered within a single system. The connecting criteria of this system are the subjective and objective sides of a specific civil case considered by the court. It is shown that, in contrast to the generally accepted approach, procedural acts in the civil justice system are divided into private law acts and acts of a public law nature. Private law acts come from persons interested in the case, initiate legal proceedings in the case and are a necessary basis for the issuance of acts of a public law nature, to which, in addition to judicial acts, the author includes the conclusion of the prosecutor and state and local government bodies, as well as acts of the Supreme Court of the Russian Federation Federations and notarized evidence.
Muziejų kultūra: kintantys diskursai ir institucinė kritika
Authors: Žukauskienė Odeta
Published: December 2024

Critical museum discourse seeks to urge fundamental changes in the institutional
norms and policies. Therefore, the paper examines the questions raised by the new
museology and institutional critique covering a wide range of issues related to the
museum normative practices, power relations, canonical ways of representations,
art-world narratives, curatorial practices and other issues. The article also discusses
the theory of museums and the development of institutional critique in Lithuania.
Aspects of Lithuanian art institutions critically evaluated in theory and practice are
discussed, anti-institutional initiatives by artists and perspectives of institutional
critique in Lithuania considered. Contemporary artists have developed various practices of institutional critique questioning art institution, and its legitimizing powers,
art management strategies, exhibit organization and exposition methods. However, art
institutions adopting the critical art practice neutralize and make it ineffective. Thus,
institutional critique is in constant search of new ways how to overpower the structuring of artistic life and enclosure of public spaces.
Antimuziejus kaip procesuali atmintis: Alytaus avangardizmo atvejis
Authors: Šapoka Kęstutis
Published: December 2024

Paper discusses briefly the main notion of museum in XIX and XX centuries and concentrates on the cycles of radical changes (emancipation processes) of museum and institution notions in the sixties and seventies. The years of 1989-1991 mark a new decisive turning-point in contemporary museology and institutional criticism history. It was crucial for many countries of the Middle and East Europe, including Lithuania. However, changing processes have some specific features in these areas. In some cases the institutional changes were not as deep as we might have expected. Therefore, the article defines museum theory by deconstructing the notion of authenticity and discussing issues of framing in Lithuanian context In this context the article notes the crucial role of avant-garde artists (after 1991) have been playing in the deconstruction of the post-Soviet cultural mentality and in the (apparent) development of new museum theory. With the help of the case of avant-garde movement in Alytus the article shows an example of the specific practice of institutional criticism as radical rethinking of local and global notions of museum. The movement in Alytus explores the importance of specific anti-museum or processual cultural anarchy strategies for increasing the dynamics of socio-cultural memory generating the new concept of museum in a paradoxical way.
Materializuojant tai, kas nematerialu. Apie nematerialiojo kultūros paveldo mediatizacijos paradoksą
Authors: Lipp Thorolf
Published: December 2024

One of the central aims of the UNESCO Convention for the Safeguarding of the Intangible Cultural Heritage is to raise international awareness of immaterial cultural
practices. To achieve this, these practices need to be transformed into media representations that can transcend space and time so as to reach wider audiences. Medializing intangible heritage comprises many complex and diverse processes: selecting,
picturing, adapting, disseminating, digitizing and archiving being only some of them.
Every media representation of reality is achieved at the cost of its derealization, materialization and virtualization, which fundamentally change the characteristics of
immaterial cultural practices. This creates a paradox because a central attribute of
immaterial culture is its ability to remain open to changing circumstances. A few fundamental thoughts are presented regarding the problem of materializing the immaterial in general, and of medializing intangible cultural heritage in particular.
Tęsiant tapatybės mitologijos temą: Czesław Miłosz
Authors: Repšienė Rita
Published: December 2024

Identity issues remain relevant in the 21st century. Spread of positive experiences
as one of the main challenges in the history of culture open opportunities to evaluate contemporary perspectives. In comparison to the present and past we choose
those points of touch, intersection and discrepancy which are able to project historical visions to future and stimulate new identity reminiscences. After celebrating his
honorable centenary we still return in thougths to this extraordinary, unusual and
mysterious creator, thinker and intellectual who had his own resolution for the 20th
century identity dilema. Along with his legacy for theses times of his distinctive cultural sens he preserved a unique mythical attitude witnessed in creation. The publication
also includes Czesław Miłosz’s collection of folklore stored in Berkeley (University of
California).
Rytų Azijos menai Lietuvoje XX–XX a. sandūroje: jų adaptavimas ir santykis su lietuviškąja pasaulėžiūra bei tapatybe
Authors: Poškaitė Loreta
Published: December 2024

The activity of the globalization and interaction processes of cultures in the second
half of the 20th century led to the revival (or new wave) of Western fascination with
the Oriental arts. This wave has been also observed in Lithuania in the recent decade despite the fact that among the bureaucratic layers of government as well as in
our academic community a completely unfounded prejudices against dissemination
of alien, especially Eastern, cultures and studies is felt as the risk of losing narrowly,
provincially perceived Lithuanian national identity and culture. One of the main goals
of this article is to dispel such unfounded fears taking concrete artists as an example
for showing that the alien culture and arts integration in Lithuanian cultural environment does not in any way present a danger to the loss of national identity, on the
contrary, it helps to understand and express it. This will be discussed in two key areas
where we see the most influence and penetration of the of Far Eastern art into Lithuanian culture – this is Dalia Doksaite creations in sumi-e (ink painting) style and her
painting studio and the creation of Japanese gardens in Lithuania. Discussing a Chinese – Japanese – Lithuanian creation by Doksaite, we will focus not so much on the
analysis of her art of painting, but rather of the artist’s relationship with the Far East
and Lithuanian cultures, her reflection of the Lithuanian identity, Chinese – Japanese
worldview and application of the principles of art for creative uses and pedagogical
purposes. The study will be based on the details of her public and personal interviews.
The analysis of the development of Japanese gardens in Lithuania will seek to highlight their philosophy of proximity and adaptation to Lithuanian worldview and their
“transfer” to another culture environment problems in general. It will also discuss the
specifics of the Japanese garden, its main features and principles. The study is based
on the classical Chinese and Japanese gardens’ art works with the work of the first and
most famous European Josiah Conder (1852–1920) which reveals the characteristics
of Japanese garden art reception and problems in the West, as well as on visual materials and information about Japanese gardens in Lithuania.
Kultūrinės atminties mediacijos tyrimai: teorinės ir praktinės problemos
Authors: Gaižutytė-Filipavičienė Žilvinė
Published: December 2024

Cultural memory is defined as a complex of long term cultural meanings, symbols and relationships, that is objectivized and externalized in material objects: bodies, images, geographical places, symbolical objects etc. Questions of mediation and remediation of memory became relevant in the studies of collective memory. What is the role of media in construction and transmission of cultural memory? In which ways mediation creates objects and affects cultural remembrance? In which ways contemporary media redefines and transforms common remembrance? This article deals with theoretical approaches and ideas of most influential scholars in the field of cultural memory studies. The author analyses Lithuanian investigations of cultural memory and reveals main research lines of mediated cultural memory.
Lietuvos fotografų nuotraukos pirmojoje Rusijos etnografijos parodoje 1867 m.
Authors: Junevičius Dainius
Published: December 2024

In 1867, Russia’s first major ethnographic exhibition was held in Moscow. The exhibition consisted of dioramas with at least 300 mannequins portraying over 60 ethnic
groups, and a wide range of additional displays representing the material culture and
physical features of the peoples of the Russian Empire. The Exhibition was an important event in the history of photography, since photographs were extensively used at
the exhibition. First of all, the photographs of the typical representatives of different
nations were used to model the heads of the mannequins. Around 1500 photographs
sent from different places or Russia were exhibited in an ethnographic section of the
exhibition.
This paper starts with exploring the role of photography in the exhibition and the
involvement of the photographers by the organising committee. Besides of known
printed sources newly discovered archival material held in Lithuanian State Historical
Archives is used to describe the process of gathering photographs from the governorates inhabited by the Lithuanians.
The photographs from the 1867 exhibition are held in the Photographic Collection
of the Russian Ethnographic Museums in Saint Petersburg. Research in the museum
revealed that majority of the photographs, sent from Vilnius, Kaunas and Suwałki governorates, has been retained. Most of these photographs are identified and published
for the first time in this paper. These photographs, being the earliest photographs of
Marijampolė town-views, ethnographic types of the Lithuanians from Telšiai district,
the Lithuanians, the Jews, the Karaites, the Tartars, the Russians and the Byelorussians from Trakai district, the Lithuanians, the Jews and the Byelorussians of Vilnius
town are of the utmost importance for the history of photography and ethnography
in Lithuania.
The photographic material sent to the exhibition from Lithuania also reveals that photographers were available for gatherers of ethnographic material even in small provincial towns in the sixties of the 19th century.
Informacijos sutrikimai: pavojai ir galimybės – skaitmeninių medijų ir informacijos raštingumui?
Authors: Frau-Meigs Divina
Published: December 2024

This paper analyzes the major changes created by the “social turn” i.e. the emergence
of social media. It presents the drastic change of ecosystem created by the three “continents” of the Internet. This sets up the context of deployment for “information disorders” such as radicalisation and disinformation. The analysis then considers the risks
and opportunities for Media and Information Literacy: on the one hand, the rise of
fact-checking and the increasing interference of social media platforms; on the other
hand, the augmentation of the MIL epistemology and the MIL paradigm shift entailed
by information disorders. It concludes on an agenda for MIL in XXIst century.
Mitai kaip medijos ir medijos kaip mitai: keletas filosofinių pastabų
Authors: Kardelis Naglis
Published: December 2024

The article draws attention to some similarities between the phenomenon of myth
and the phenomenon of media. These similarities are elucidated by way of viewing
the phenomenon of myth through the lens of the phenomenon of media and, vice versa, the phenomenon of media through the lens of the phenomenon of myth.
The author seeks for the reasons to discard the popular opinion (the popular “myth”,
so to say) that relates myth as such to the past and the media – to the future and the
trendy present. It is shown that, in the opposite sense, myths themselves might be
viewed as a form of media and, on the other hand, there is reason to consider the
media in terms of myth.
The author acknowledges that myth and the media have both positive and negative
features, yet, in this case, he ventures to emphasize the positive aspects of myth and
the negative aspects of media in order to conceptually counteract the contemporary
trend to view myth strictly negatively, as a relic of the past, and associate it with the
outgrown modes of consciousness and imagination, and, conversely, to consider the
media, especially the new media, in positive terms, as a factor conducive to technological and societal progress.
It is argued that those features of myth that show its affinity to the media are precisely
the features that help us to appreciate the positive aspects of myth. On the other hand,
it is argued that those features of the phenomenon of media that show its affinity to
the phenomenon of myth are the features that help us to disclose the negative aspects
of media.
Yet it is also argued that precisely the inclusions of myth in the very nucleus of the
phenomenon of media ensures the vitality of this phenomenon, for the myth of technological progress and endless innovation is the very force that drives this progress
and fuels our fascination with the new media and technology as such. Therefore, in
the author’s opinion, to kill myth in the name of technological progress – especially
for the sake of new forms of media that appear as a consequence of innovations in the
field of information technology – would be tantamount to the killing of the spirit of
technological progress and the phenomenon of media itself.
All we need is to clearly discern the mutual dialectical interpenetration of these two
phenomena – the phenomenon of myth and the phenomenon of media – and to ensure
that we have enough wisdom and courage to save for the future both myth and the
media, appreciating and employing for the benefit of humanity their positive aspects,
yet also having in mind and guarding against the potential dangers related to each of
these two phenomena.
Mitų apie Kiniją transformacijos XXI amžiaus medijose
Authors: Poškaitė Loreta
Published: December 2024

The article focuses on the Western and Chinese stereotipical images and myths about
China, aiming to investigate their manifestation and changes in XXIth century, since
this is the time of the gradual disappearance (or questionning) of the cultural and
geographic boundaries of China and chineseness (like of many other cultures-states
in the global world). This makes the relationship between reality (so-called „Real China“) and phantasy („China imagined“) even more problematic than before, because
of the globalization of the media and audiences, as well as the contradictoriness of its
naratives and intentions. This process and changes raises many questions, such as:
what is the audience of those myths and associated stereotypes? In which ways are
they received? What impact on their reception is made by the processes of globalization of cultures, including Chinese one? What they are aiming for and what are their
relations to the understanding of chineseness, which is also in the transitional state?
The article aims to answer those questions, thus analysing, how the particular stereotypes, images and narratives (such as panda, gongfu master, Confucius, harmony,
Great Wall, sea, „made in China“), as the basis of the myths about China and Chinese
culture, were used in the Chinese and transnational visual media (such as movies and
animation) and mega-events (such as 2008 Beijing Olympics).
Kritiškumo metamorfozės, viešieji intelektualai ir „nykstančių galių“ pavojai
Authors: Repšienė Rita
Published: December 2024

The changes in contemporary society, closely linked to the political and cultural crisis, the decline of tradition and powers, the transformation of academic institutions
and community, are reflected in the loss of public intellectuals – educators of critical
thinking having a positive social influence and encouraging creativity in self-expression. The upheavals of global world, the rise of managerial capitalism and a negative
evolution of university realities are opening a large gap between scholars and representatives of press as a sphere of mass media. Public discourse becomes the “property” of globalized, corporate media, therefore scholars and so-called erudite thinkers
become persona non grata in both public space and governance. Political government
does not seek cooperation with representatives of science and art, the expulsion of intellectuals from the public space causes irreversible changes and changes the mental
climate of the world. Political government does not seek cooperation with scientific
and artistic representatives; the expulsion of intellectuals from the public space causes irreversible changes in mental climate.
Meaningful effects of invisible power, such as “carrying the soul on the palm of hand”
(Stanislaw Morawski), as the ability not only to speak a lot (A. J. P. Taylor), but also
to identify fundamental threats and dangers, combining vocation with national aspirations (Stefan Collini), improving the world and achieving a polylogue of cultures
and societies, are becoming our universal needs. The dwindling class of public intellectuals reflects the inevitable processes of the 21st century, with the emergence of
domains of virtuality, superficiality, and augmented reality.
Negative attitude towards intellectuals is related to general provisions of government, social norms of exclusion, and a lack of communication. Solitary intellectuals
experience creative and media isolation. The predominant denial of critical thinking,
free opinion, and the importance of public conscience has led to the general public
position – dislike for intellectuals (Fran Lebowitz), moving them into the spiritual
wilderness. However, intellectual landmarks, important insights, positive criticisms
and comments remain particularly relevant in the face of new challenges, delineating
the existential dimensions of the present world.
New technological invasions of intelligence are changing the overall mental landscape. The challenges to public intellectual survival are growing every day. By focusing on the most important existential priorities, we must preserve critical reflection,
the power of feelings, the autonomy of thinking, without succumbing to a leveling
universality.
emergência do sensível
Authors: Luis de Lima Carvalho André
Published: December 2024

Analisam-se as ideias de Charles Darwin, Thomas Huxley e Alfred Wallace sobre origens e relações entre prazer, dor e mente, e suas implicações metafísicas, relativas à plausibilidade da benevolência divina, e éticas, relativas à vivissecção. Constata-se que Darwin e Huxley se atinham a um modelo explicativo naturalístico darwinista, e Wallace uniu evolução e espiritualidade, em uma tese teológica que preservava a intervenção divina. A complexidade das visões, afiliações e agendas é exemplificada nas posições sobre a vivissecção. Darwin e Huxley, que viam nos animais “superiores” seres sensíveis, defenderam a vivissecção, e Wallace, que negava a sensibilidade animal, criticava a prática.
Green synthesis of nanocomposites: AgO, CuO and Ag/CuO NPs from extracts of the bulb of UrgineaMaritima and their application for the degradation of the dye Cristal Violet
Authors: Bekouche Karima , Zouied Daoiya , Khelfaoui Malika , Bouzenad Nawal , Abdennouri Amdjed , Dob Karima
Published: December 2024

The search for an economically viable and environmentally benign method for the treatment of wastewater represents a significant global challenge. Accordingly, this study examined the removal of organic pollutants from wastewater through the use of copper oxide, silver oxide, and silver-doped copper oxide nanoparticles, which were synthesized from the extracts of the plant Urginea maritima. The green synthesis of nanoparticles represents a simple, rapid, cost-effective and environmentally friendly method that has demonstrated efficacy in the removal of organic dyes from wastewater. The characterization of these nanoparticles by XRD and UV-Visible spectroscopy demonstrates the formation of copper and silver oxides in the different syntheses. The results of the degradation of crystal violet indicate that silver-doped CuO exhibits a higher photodegradation efficiency than undoped CuO in the different syntheses, with an efficiency of 98.22% after a time of 60 minutes. This makes them a highly promising catalyst for water purification and environmental remediation.
Improved and analysis of the maximum power point based on PSO, PO and INC algorithms in photovoltaic systems
Authors: Salah Hanfoug , Fateh Moulahcene
Published: December 2024

In this paper, three techniques for tracking the maximum power point (MPPT) of a photovoltaic generator (GPV) using Matlab Simulink were presented, an extensive comparative study of three techniques for maximising power, namely P&O, IC and PSO in photovoltaic systems. The objective of the study is to evaluate and compare the performance of these techniques in terms of power extraction efficiency, response time and tracking accuracy. It presents a prescribed photovoltaic system and simulates the performance of different MPPT algorithms,, including Incremental Conductance (INC), Perturb & Observe (P&O) and Particle Swarm Optimization(PSO). The simulation evaluates the effectiveness of each technique in tracking the maximum power point (MPP) of the PV module under varying environmental conditions. The results provide valuable insights into the design and selection of an appropriate MPPT algorithm for specific PV systems.
The impact of notch length and applied pressure on the development of confinement stress T within a pipe arc subjected to internal pressure
Authors: Hichem Bouali , Khadraoui Faicel , Chitour Mourad , Mansouri Khelifa , Touati Sofiane , Boumediri Haithem , Himeur Nabil , Abdelhak Berkia
Published: December 2024

Geometric discontinuities within mechanical components can significantly alter the stress distribution, leading to localized stress concentrations that increase the risk of failure. These discontinuities, which can take the form of cracks, notches, or other defects, can cause premature material degradation if not properly accounted for during the design and analysis phases. The presence of such discontinuities often results in variations of stress, which may accelerate the wear and tear of mechanical systems or structures, compromising their integrity over time. This study focuses on the numerical analysis of T-stress terms in Mode I for pipeline specimens with external surface cracks. By using the stress difference method (SDM), developed by Yang, this research aims to evaluate how the applied stress influences the behavior of the pipeline near the crack tip. The study provides a detailed examination of the evolution of these T-stress terms and explores how changes in parameters, such as crack length and applied pressure, can affect the stress distribution and lead to the potential for failure. The results highlight the importance of accurately predicting stress concentrations and their impact on the durability of pipeline systems under internal pressure.
Utilization of an ArcGIS geographic information system and a HEC-HMS hydrological model to simulate some of the Tafna sub-catchments
Authors: Bentahar Kheira , Yebdri Djilali , Baghli-Merabet Naoual
Published: December 2024

This study aims to develop a flood forecasting system for the Tafna watershed in northwestern Algeria. The system will combine Geographic Information Systems (GIS) and the hydrological modeling tool HEC-Geo HMS to simulate the watershed's behavior during extreme rainfall events. By using remote sensing data, the study will improve the accuracy of hydrological parameter estimation and physical process representation. The methodology involves several steps It begins with data collection and Preparation: Extracting SRTM images and creating a digital terrain model (DTM). Next, GIS Analysis: Delineating basin boundaries and extracting physical characteristics like slope, surface area, and the hydrographic network. Finally, Hydrological Modeling: Integrating the collected data into HEC-Geo HMS to simulate the watershed's response to various rainfall scenarios. Based on IDF curves from 1990-2013, a 24-hour, 100-year rainfall event was simulated using the HEC-HMS model. Runoff volume was estimated with the SCS-CN method and transformed into a flood hydrograph using the SCS unit hydrograph method. This analysis allows us to assess the basin's vulnerability to extreme events.
Studying the convective-dried tomato shrinkage by X-ray micro-CT imaging
Authors: Khama Réda , Plougonven Erwan , Léonard Angélique
Published: December 2024

The use of X-ray micro-CT imaging (X-ray microtomography), which is an effective imaging technique that provides multiple advantages across different fields (non-destructive, high resolution, density contrast, versatility, in-situ analysis, and 3D modeling), for experimentally determining shrinkage during fruit drying has not been extensively researched. Therefore, the main goal of this paper is to examine the shrinkage phenomenon during convective drying of tomato slices, using three different temperatures (40, 50, and 60°C) at constant air velocity of 1 m.s-1 and very low humidity. Indeed, the shrinkage curves showing the evolution of the volume ratio (V*) versus the water content ratio (X*) are determined by X-ray microtomography. According to the findings, the tomato exhibits anisotropic shrinkage that is not affected by temperature, and a single shrinkage curve is proposed. On average, the volume decreases of 70% of its initial value. The water content affects both thickness and diameter shrinkage in a linear manner until X* is 0.2. However, when the values are below 0.2, the diameter and especially thickness decrease quickly, with a polynomial and logarithmic trend, respectively.
Unitary transformation technique for the study of quantum dynamics of charged particle in time-dependent electromagnetic field
Authors: Ahmim Rachid , Baouche Nabil , Askri Souhaila , Becer Zoubir , Letaim Fathi
Published: December 2024

In this paper, we present a unitary transformation technique to solve the equation of quantum dynamics of a charged particle moving in a time-dependent electromagnetic field. The primary advantage of the technique lies in the connection of this technique with one of the essential features of the system which is the gauge. The gauge has  been chosen in a way where the first three dimensional Hamiltonian transformed easily through this technique to a two dimensional coupled problem. This problem is central in several areas of physics, including solid-state and plasma physics, where the understanding of the behavior of charged particles in the presence of time-dependent electromagnetic fields is essential to explore the behavior of various phenomena. The complete solution of the Schrödinger equation is presented and the propagator is also determined using this technique.  This technique is also used to shows how the problem can be reduced to a two-dimensional system of coupled harmonic oscillators, each subjected to a time-dependent linear potential. This reduction simplifies the analysis by transforming the problem into a form that can be mapped onto a well-established model, which has been previously studied using the path integral formalism.
Enhancement of natural convection heat transfer in annular cylindrical enclosure filled with nano fluids: effect of nanoparticle size
Authors: Benkherbache Souad , Bakhti Fatima Zohra , Benarioua Mokhtar
Published: December 2024

In this paper, we present a numerical investigation of natural convection heat transfer in an annular enclosure filled with nanofluid. The inner cylinder, equipped with two symmetrical fins, is subjected to volumetric heat generation, while the outer cylinder is maintained adiabatic. The governing equations for continuity, momentum, and energy are solved using the finite volume method, implemented in Fluent 6.3.26 software. The study evaluates the impact of nanoparticle size and material on the heat transfer rate, considering two water-based nanofluids: Al₂O₃ and TiO₂. A range of solid volume fractions (0 ≤ ϕ ≤ 0.09) and nanoparticle diameters (5 nm, 20 nm, and 80 nm) is analyzed at a Rayleigh number of Ra = 12000. Results indicate that incorporating nanoparticles into the base fluid significantly enhances heat transfer. Among the studied configurations, water/Al₂O₃ nanofluid demonstrates superior heat transfer performance compared to water/TiO₂ nanofluid. Furthermore, smaller nanoparticle diameters lead to more pronounced heat transfer improvements, highlighting the critical role of particle size in thermal performance. These findings provide valuable insights into optimizing nanofluid properties for enhanced natural convection heat transfer in enclosures, with potential applications in advanced thermal management systems.
Modeling of a shaped cutter in high-speed steel type HSS 18-0-1
Authors: Chermime Brahim , Hamidane Ouafa
Published: December 2024

During the monitoring of cutting tools in machining workshops, we observed that shaped cutters work under severe conditions. This study aims to improve their mechanical properties and increase their efficiency. Two essential factors influence these tools: geometry and heat treatment. In this study, we focused on analyzing the geometry. To do so, we determined the critical points of the cutting edge along the tooth profile. We applied a distributed load along the tooth and used the CASTEM software to identify sensitive zones by determining Von Mises stresses and tangential stresses. The tool selected for this study is a shaped cutter made from high-speed steel HSS 18-0-1. Our results show that specific areas on the cutting edge are subject to high stress concentrations, which could lead to premature wear or failure. By understanding these stress distributions, we can propose adjustments to the cutter’s geometry to enhance durability. Additionally, the load analysis provides insights into optimizing the shape of the cutting edge for improved cutting performance. We further discuss the influence of tool geometry on heat dissipation during the cutting process, which is crucial for maintaining tool integrity under high-speed conditions.
Analysis of cooling rate impact on the behavior of steel and reinforced concrete beams under fire conditions
Authors: Boursas Farid , Boufarh Rafik , Fezzai Soufiane
Published: December 2024

This paper comprehensively investigates fire-induced structural degradation in reinforced concrete and steel beams, employing advanced thermal and mechanical analysis techniques. The study uses the finite element method and SAFIR software to conduct a sophisticated thermal analysis to assess structural performance quantitatively under complex fire scenarios. The research innovatively explores both the heating and cooling phases of fire events, revealing critical insights into material behaviour. The study provides a nuanced understanding of structural response mechanisms by adapting stress-strain curves to account for temperature-dependent variations and residual stresses. Specifically, the analysis employs parametric temperature curves from EN 1991-1-2 standard, enabling precise modelling of thermal loading conditions. A ground-breaking parametric study systematically evaluates cooling rate impacts on beam structural integrity. Key findings demonstrate that while accelerated cooling rates can initially enhance beam resistance, prolonged or non-uniform cooling phases may induce significant residual deformations and compromise structural stability. The research highlights the complex thermomechanical interactions within steel and reinforced concrete beams.
Optimizing a FOPID controller for liquid level control in a three-tank system with the Nelder-Mead algorithm
Authors: Benaouicha Karim , Akroum Hamza , Idir Abdelhakim , Bensafia Yassine
Published: December 2024

This paper proposes an optimization approach for a Fractional Order PID (FOPID) controller in a three-tank system using the Nelder-Mead algorithm. The FOPID controller is designed to control the liquid level in the three-tank system, and the Nelder-Mead algorithm is used to optimize the controller parameters for optimal control performance. The optimization problem is formulated to minimize the error between the desired and actual liquid levels, and the Nelder-Mead algorithm is used to search for the optimal values of the FOPID controller parameters. The results show that the optimized FOPID controller achieves better control performance. The results are compared with our previous results obtained using the Fractionalized order PID optimized by Prairie Dog Optimization-based (PDO), which demonstrates the effectiveness of the Nelder-Mead algorithm for optimizing the FOPID controller for liquid level control in a three-tank system. The practical contribution of this study is significant, as it proposes an approach that improves the control performance of three-tank systems. The results of this study can be applied in various fields, such as chemistry, petrochemistry, and pharmacy, where liquid level control is crucial for process safety and quality. Furthermore, this study opens up perspectives for the use of the Nelder-Mead algorithm in other process control applications where accuracy and speed are essential.
Contribution to the study of thermal expansion and hygrometric swelling of multi-materials
Authors: Mohammed Sehoul , Khaled Bendahane , Otbi Bouguenina , Mamia Benchohra
Published: December 2024

The aim of this work is to analysis the influence of thermal expansion and hygrometric swelling phenomena on multi-material structures, in service and under hygrothermal stress. The aim is to highlight the different states of hygrothermal stress responsible for structural damage. In this analysis, we are trying to highlight the problem of temperature variation, variation in the concentration of the swelling agent and this parametric study will be conducted whereby the effects of different fiber orientations on material performance, and to visualize the results in order to be able to draw up the best structure that simulates the walls of an advanced cold chamber that can be dismantled and moved. In order to simplify this study, we rely on the mechanics of continuous media through an analytical formulation of the behavior of orthotropic plates in the first instance, and a numerical calculation to solve the system of analytical equations in the second instance.
Deep learning-based prediction of electrodograms for cochlear implants using the ACE strategy
Authors: Essaid Billel , Batel Noureddine
Published: December 2024

Cochlear implants (CIs) rely on coding strategies like the advanced combination encoder (ACE) to process auditory signals, but these methods face limitations in accurately reconstructing intelligible speech in noisy environments. Addressing this challenge, this paper presents a deep learning (DL) model, designed to predict electrodograms generated by the ACE coding strategy for CIs. The model utilizes a temporal convolutional network (TCN) to capture the temporal dependencies of auditory signals, combined with convolutional layers to encode audio features. The TIMIT dataset was used to train the model, transforming .wav audio files into electrodograms via the ACE strategy. Performance evaluation was based on the short-time objective intelligibility (STOI) metric, with an additional assessment through word recognition score (WRS). The proposed model achieved an STOI score of 0.6542 and a WRS of 66.83, indicating competitive results compared to traditional strategies. This study enhances CI coding strategies through artificial intelligence (AI)-driven approaches, offering a framework for improved auditory signal processing.
Confecção e elaboração de um produto de ensino e aprendizagem usando abordagens imersivas a partir de uma revisão bibliográfica
Authors: Reis Mira Caroline Milen Viégas , Oliveira Sandro Ronaldo Bezerra
Published: December 2024

Este artigo explora o desenvolvimento e a implementação de um protótipo educacional voltado ao ensino-aprendizagem imersivo para a formação de professores do ensino superior. A pesquisa surge da necessidade de engajar educadores em novas metodologias que integrem estratégias imersivas ao processo de construção de materiais pedagógicos. O problema central investigado é: como os professores podem aprender a criar conteúdos imersivos ao passarem por uma experiência de imersão? O protótipo foi elaborado com base em conceitos de imersão educacional e estratégias coletadas a partir de etapas metodológicas que podem ser caracterizadas por: I. Revisão bibliográfica; II. Levantamento de estratégias imersivas; III. Criação do protótipo; e IV. Avaliação. As estratégias não se limitam ao uso de tecnologias avançadas, como realidade virtual e aumentada, mas que também incluem abordagens narrativas, storytelling, design de cenários, interatividade, simulação e gamificação, promovendo envolvimento e engajamento por meio de metodologias que favorecem a criação de contextos dinâmicos e desafiadores. Inspirando-se em estudos da literatura especializada, que destacam a importância da imersão mental e física, o protótipo busca proporcionar uma experiência integrada, permitindo que os professores vivenciem diferentes níveis de imersão enquanto aprendem a construir e aplicar essas metodologias. A imersão mental envolve a construção de sentido e engajamento profundo com o conteúdo, enquanto a imersão física pode incluir a criação de ambientes simulados, sejam virtuais ou físicos, que incentivem o aprendizado ativo. Dessa forma, a proposta do protótipo visa não só formar professores com competências em tecnologias imersivas, mas também criar um ambiente pedagógico engajador e significativo. Os resultados esperados incluem a melhora no preparo dos docentes em criar e utilizar conteúdos imersivos, além de uma maior conexão emocional e cognitiva no processo de ensino-aprendizagem, tanto para professores quanto para alunos. O protótipo também oferece insights valiosos sobre como integrar essas abordagens em diversos contextos educacionais, contribuindo para o uso mais eficaz de metodologias ativas em sala de aula. Por fim, este artigo propõe uma reflexão sobre o futuro da formação de professores, sugerindo novos caminhos para o aprimoramento da prática docente, principalmente no que se refere à criação de experiências de aprendizagem que envolvam e motivem os alunos de maneira significativa.
Relato de experiência: o ensino de psicologia social em um curso de formação de facilitadores em justiça restaurativa como forma de aprendizagem significativa
Authors: Melo Georges Cobiniano Sousa de
Published: December 2024

O objetivo deste artigo é relatar a experiência de ministrar uma disciplina de introdução à Psicologia no curso de formação de facilitadores em Justiça Restaurativa, promovido pela Escola Judiciária do Piauí, no mês de novembro do ano de 2023. São apresentados os fundamentos que levaram o autor a inserir a disciplina no curso e alguns resultados já vivenciados. Para tanto, inicia-se conceituando a Justiça Restaurativa, como um método alternativo de resolução de conflitos, capaz de promover mudanças de concepção e de atitude em relação ao futuro nos participantes. O estudo busca estabelecer relações entre a Justiça Restaurativa e a Psicologia Social, a Psicologia Cognitiva e a Neurofisiologia. Termina por demonstrar que o ensino baseado no aspecto fenomenológico é umas das formas de promover aprendizagem significativa, revelando, também, alguns resultados alcançados pela equipe formada segundo esse novo modelo de ensino, como a expansão para novas áreas, a criação de novos projetos e o aprofundamento da relação entre todos os facilitadores e instituições que aplicam a Justiça Restaurativa na Comarca de Parnaíba e região.