bluuebunny/crossref_metadata_2025 huggingface dataset:
Italian translation and cultural adaptation of the Agitated Behavior Scale (ABS-I) in patients with acquired brain injuries
Authors: Derchi Chiara-Camilla , Arcuri Pietro , Comanducci Angela , Caronni Antonio , Pagliari Chiara , Viganò Alessandro , Volpato Eleonora , Navarro Jorge , Trimarchi Pietro Davide
Published: April 2024

Objective: The objective of this study was to produce a cross-cultural adaptation in Italian of the Agitated Behavior Scale (ABS), originally developed in English, as the first of two stages that also include cross-cultural validation and allow a clinical scale to be used in the proper setting such as rehabilitation units.
Methods: In order to adapt the ABS scale to a different cultural environment, five consecutive steps were performed: (1) forward translations (n = 8), (2) synthesis of the 8 forward translations to obtain a first shared italian version (ABS_I_trial), (3) back translations (n = 3), (4) creation of an expert committee to evaluate forward and back translations and finally (5) the cognitive debriefing.
Results: After the five steps, including forward translations and back translations, the process of committee verification and judgement and the evaluative step of cognitive debriefing, high comprehensibility of all items was found, resulting in an Italian translation version of ABS suitable for application in a clinical setting.
Conclusion: ABS translation was produced by means of a standardized procedure aimed at minimizing cross-cultural gaps. The expert committee evaluated the version produced as highly understandable in Italian. Further steps, such as the subsequent validation of its psychometric properties, are needed to employ this translation in a clinical setting.
PARTICIPATORY PRACTICES AND LOCAL DEVELOPMENT IN CLUJ-NAPOCA, ROMANIA. CASE STUDY: THE INITIATIVE LA TERENURI [AT THE PLAYGROUNDS] – COMMON SPACE IN MĂNĂȘTUR NEIGHBOURHOOD
Authors:   Universitatea Babes-Bolyai: Cluj-Napoca, RO, HAVADI-NAGY Kinga Xénia , ILOVAN Oana-Ramona ,   Babeș-Bolyai University: Cluj-Napoca, BRISC Andrei  ,   Babeș-Bolyai University, Faculty of Geography, MEDEȘAN Silviu  ,   University of Oradea
Published: April 2024

Marginalisation is present all over the world in different forms. “La Terenuri” [At the Playgrounds] initiative in ClujNapoca, Romania, can be considered a good practice example of how urban marginalisation can be diminished through grassroots initiatives. In the heart of a green plateau, where urban planning was not performed, Colectiv A Association, an NGO, started to reshape the area, involving local communities and groups. The research material includes interviews, articles from newspapers, posts on social media and documents created by the Municipality of Cluj-Napoca. Results showed that Colectiv A Association had co-created diverse activities and events to involve the inhabitants of Mănăștur neighbourhood into the regeneration of the public space: workshops, gardening activities, debates, cleaning actions, festivals, Mănăștur’s Days, petitions, etc. The lessons learnt and the experiences of “La Terenuri” argue for more adaptive urban planning, which identifies solutions to residents’ needs, aspirations, and desires.
COMMEMORATIVE MONUMENTS DEDICATED TO POLITICAL PERSONALITIES IN BUCHAREST, ROMANIA. AN INTERPRETIVE APPROACH BASED ON POSTCARDS
Authors:   University of Bucharest, MERCIU Florentina-Cristina
Published: April 2024

Monuments in the public forum dedicated to political leaders are an important tool in promoting national identity. Frequently, the political message embedded in public monuments is intended to contribute to propagating and strengthening a sense of national identity by shaping the community’s commemorative experience. In addition to the commemorative function related to social memory, public monuments also have an associated ideological function, as the monuments become essential in visually representing the national politics of memory and identity. The ideological function also represents an expression of power by emphasising a series of prominent political leaders. This article analyses the imagology and symbolism of public monuments in the central area of Bucharest as elements that support the construction of national identity. Commemorative monuments dedicated to symbolic national political personalities from the period of the United Principalities and Royalty were analysed in terms of their role in remembering and forming the national identity. The evolution of these monuments and their significance were also analysed based on postcards, which were marked by a series of changes in how power was expressed and the formation of national identity in the communist and contemporary periods.
Investigation of the prevalence of cystic echinococcosis in Gaziantep-Türkiye by ELI.H.A Echinococcus ELITech between 2015-2022
Authors: Özkeklikçi Ahmet , Cirit Osman Sezer
Published: April 2024

In this study, 1811 serum samples of 1764 patients who applied to the parasitology laboratory of Gaziantep Dr. Ersin Arslan Training and Research Hospital between 1 January 2015 and 31 December 2022 with preliminary diagnosis of cystic echinococcosis (CE) were investigated, in order to evaluate the demographic data of the patients and CE seropositivity on an annual base. 1811 serum samples were analyzed by ELI.H.A Echinococcus ELITech (MICROBIO, France) test which is based on the indirect haemagglutination principle. Seropositivity was detected in a total of 519 patients. Of the patients who were found to be positive, 341 were women and 178 were men.
The highest positivity rate was found in patients over 50 years of age (29.3%), followed by the 20-30 age group (23.1%) and the 30-40 age group (22.9%), respectively.
While 232 of the admitted patients with preliminary diagnosis of CE were Syrians, 1532 patients were Turkish citizens. The positivity rate in Syrian patients was determined to be 41.8%, (n=100) while this rate was 26.7% (n=419) in Turkish patients. Despite the developments in the socioeconomic field, the investments of local governments in sanitation and the establishment of single health awareness, CE continues to exist as an important public health problem in Gaziantep due to both the effect of migration and the inability to reach the desired levels of personal hygiene.
Dynamics of a fishery with nonlinear harvesting: control, price variation, and MSY
Authors:   Research Team Simulations Mathématiques et Analyse de Données (S.M.A.D.), Polydisciplinary Faculty of Larache, Abdelmalek Essaadi University, El Hakki I. , Mchich R. ,   Research Team Sciences de l'Entreprise et Politique du Territoire (S.E.P.T.), National School of Management, Tangier, Abdelmalek Essaadi University, Bergam A. ,   Research Team Simulations Mathématiques et Analyse de Données (S.M.A.D.), Polydisciplinary Faculty of Larache, Abdelmalek Essaadi University
Published: April 2024

In this paper, we construct and analyse a new fishing mathematical model, which describes the time evolution of a fish stock, which is harvested by a fishing fleet, described by its fishing effort. We consider that the price, which is given by the difference between supply and demand, is varying with respect to time. For the harvesting function, we use the Holling II function. On the other hand, we consider two different time scales: a fast one for the price variation and a slow one for fish stock and fishing effort variations. We use an "aggregation of variables" method to get the aggregated model that governs fish biomass and fishing effort in the slow time. By analyzing this reduced model, and under some conditions, we prove that three interesting equilibria can occur. Furthermore, we show how one can control the model to avoid the undesirable situations and to reach the stable equilibrium. Another interesting aspect given in this manuscript is the possibility of the implementation of Marine Protected Areas (MPAs). We show how that MPAs permits us to contribute significantly to the rehabilitation of depleted fish populations. This is achieved by disrupting the state of "Fish Extinction" equilibrium, and establishing a stable one.
A combined ant colony optimization with Levy flight mechanism for the probabilistic traveling salesman problem with deadlines
Authors:   SMAD Team, Polydisciplinary Faculty of Larache, Abdelmalek Essaadi University, El Asri F. , Tajani C. ,   Polydisciplinary Faculty of Larache, Abdelmalek Essaadi University, Fakhouri H. ,   SMAD, FPL, Abdelmalek Essaadi University
Published: April 2024

In this paper, we are interested in the Probabilistic Traveling Salesman Problem with Deadlines (PTSPD) where clients must be contacted, in addition to their random availability before a set deadline. The main objective is to find an optimal route that covers a random subset of visitors in the same order as they appear on the tour, attempting to keep the path as short as possible. This problem is regarded as being ♯P-hard. Ant Colony Optimization (ACO) has been frequently employed to resolve this challenging optimization problem. However, we suggest an enhanced ACO employing the Levy flight algorithm in this study. This allows some ants to take longer jumps based on the Levy distribution, helping them escape from local optima situations. Our computational experiments using standard benchmark datasets demonstrate that the proposed algorithm is more efficient and accurate than traditional ACO.
A survey of the vehicle routing problem and its variants: formulations and solutions
Authors:   MMCS Team, LMAID Laboratory, ENSMR-Rabat, Khayya E. , Medarhri I. ,   MMCS Team, LMAID Laboratory, ENSMR-Rabat, Zine R. ,   School of Science and Engineering, Al Akhawayn University in Ifrane
Published: April 2024

In the realm of industrial enterprises, enhancing logistical efficiency stands as a focal concern. The objective lies in orchestrating an optimized service with seamless flow of goods while minimizing expenses. A crucial component within any logistics framework is the administration and strategizing of distribution networks for vehicle fleets, commonly referred to as the Vehicle Routing Problem (VRP). This composition delves into an exploration of VRP and its various iterations, offering categorization and depiction of prevalent formulations and algorithms prevalent in scholarly works over the past two decades.
Development of Supercomputer Technologies at the Institute of Mathematical Modelling and Keldysh Institute of Applied Mathematics of Russian Academy of Sciences
Authors: Yakobovskiy M. V. , Kornilina M. A.
Published: April 2024

A review scientific work in the field of supercomputer technologies at the Institute of Mathematical Modelling and Keldysh Institute of Applied Mathematics is presented. Progress in supercomputer technologies, programming tools and technique (such as hyperbolization, load balancing, fault tolerance, adaptive mesh refinement, rational mesh decomposition) and several supercomputer applications are presented.
Parallel Algorithms for Numerical Solution of Spatially Three-Dimensional Diffusion-Convection Equations in Coastal Systems Based on Splitting Schemes
Authors: Sidoryakina V. V. , Solomakha D. A.
Published: April 2024

Introduction. To prevent the occurrence and mitigate the consequences of hazardous and catastrophic phenomena associated with sediment transport in natural systems, it is necessary to develop operational and scientifically justified forecasts, identify critical states at which the emergence of emergency situations is possible. For these purposes, it is necessary to create an accurate and efficient toolkit, including algorithms for numerical solution of a model problem that takes into account the specifics of natural systems. In this work, parallel algorithms for numerical solution of a spatially three-dimensional diffusion-convection problem of sediment are presented, which allow a significant reduction in computation time (by more than 4 times) compared to calculations conducted using a sequential algorithm.Materials and Methods. For the parallel solution of the spatially three-dimensional diffusion-convection problem, an implicit splitting scheme is constructed, in which the original continuous problem is replaced by a chain of two-dimensional and one-dimensional problems. The splitting schemes proposed in the work are physically justified and take into account the specifics of coastal marine systems, for which the influence of micro-turbulent diffusion and advective transport of substances are comparable, and the Peclet number does not exceed unity when approximating real problems. For the parallel numerical implementation, a method of decomposing the grid domain into two families of vertical planes parallel to the coordinate planes Oxz and Oyz, combined with the Seidel method for solving two-dimensional grid problems in horizontal planes and the tridiagonal matrix algorithm when solving one-dimensional three-point problems in the vertical direction, is used. Within the framework of the parallel computing software implementation, a parallel algorithm is presented that implements the diffusion-convection problem on a computing system using MPI technology.Results. A comparative analysis of parallel and sequential algorithms is obtained using a model problem.Discussion and Conclusions. The developed software allows its practical use for solving specific hydrophysical problems, including as part of a software complex.
Finite Difference Method for Solving Parabolic-Type Integro-Differential Equations in Multidimensional Domain with Nonhomogeneous First-Order Boundary Conditions
Authors: Beshtokova Z. V.
Published: April 2024

Introduction. We investigate a multidimensional (in terms of spatial variables) parabolic-type integro-differential equation with nonhomogeneous first-order boundary conditions. The locally one-dimensional finite difference scheme developed herein can be applied to solve various applied problems leading to multidimensional parabolic-type integro-differential equations. Examples include mathematical modelling of cloud processes, addressing the issue of active intervention in convective clouds to prevent hail and artificially enhance precipitation, as well as describing the droplet mass distribution function due to microphysical processes such as condensation, coagulation, fragmentation, and freezing of droplets in convective clouds.Materials and Methods. In this study, an approximate solution to the initial-boundary value problem is constructed using the locally one-dimensional scheme of A.A. Samarsky with a specified order of approximation О(h2 +τ). The primary research method employed is the method of energy inequalities.Results. A priori estimates have been obtained in the discrete interpretation, from which uniqueness, stability, and convergence of the solution of the locally one-dimensional difference scheme to the solution of the original differential problem follow, with a convergence rate equal to the order of approximation of the difference scheme.Discussion and Conclusions. The research findings can be utilized for further development of boundary value problem theory for parabolic equations with variable coefficients. Additionally, they may find applications in the fields of difference scheme theory, computational mathematics, and numerical modelling.
Indonesian university students’ practices and perspectives on translanguaging
Authors: Agustin Santi , Wahyudi Ribut
Published: April 2024

Despite the growing research on translanguaging, additional research is still needed, especially in the students’ actual practice of translanguaging in Indonesian university classrooms and its inherent emotional state. Addressing this gap, our study aims to explore university students’ practices and perspectives towards translanguaging in classroom presentations with students’ state of emotion during presentations. This qualitative case study was chosen to have an in-depth analysis of an issue under investigation. Data were collected via Zoom video recording and semi-structured interviews. Garcia and Li Wei’s (2014) theory of translanguaging is used as an umbrella to analyze data, followed by our use of Li Wei's (2011) moment analysis and Baker's (2011) pedagogical function of translanguaging to strengthen the analysis. This study revealed that translanguaging is mostly appreciated by respondents as it can diminish language anxiety with one student’s criticism on the potential overuse of translanguaging. Translanguaging, as reported, also helped respondents with better comprehension, growing confidence, and enhanced equity. The pedagogical implication of this study is that Indonesian university EFL teachers could develop a more flexible syllabus, enabling university students to use English with the possibility of translanguage when needed. However, translanguaging should be used with caution.
MENANAMKAN KETERTARIKAN TERHADAP PEMBELAJARAN IPAS DENGAN MENGGUNAKAN MEDIA WORDWALL PADA SISWA SEKOLAH DASAR
Authors: Aghel Dewi Pertiwi , Ma'lufah Siti , Damayanti Mega , Asmara Mayang
Published: April 2024

Abstract: Utilizing technology to create fun learning can foster enthusiasm and further develop student achievement. The method used in the research is qualitative method. There were 35 students who were the target participants in this activity. The fifth grade at SDN Karangpawitan 1, located in Karawang Regency. In accordance with the research findings, students experienced a change in attitude after they were taught using Wordwall as a learning medium. This difference can be seen in terms of student participation in the learning process, such as: (a) students who actively participate in educational activities; (b) students who are compliant in submitting assignments at the specified time; (c) students who dare to ask questions if there are things they do not understand. The results of this study concluded that the use of the wordwall platform in the Natural Science learning process for grade 5 students was effective in improving noodlesKeyword: Improve Learning Outcomes, Learning media, Wordwall media.Abstrak: Memanfaatkan teknologi untuk menciptakan pembelajaran yang menyenangkan dapat menumbuhkan semangat dan mengembangkan lebih lanjut prestasi belajar siswa. Metode yang dipakai dalam penelitian tersebut yaitu metode secara kualitatif. Terdapat 35 siswa yang menjadi target peserta dalam kegiatan ini. Kelas lima di SDN Karangpawitan 1, terletak di Kabupaten Karawang. Sesuai dengan temuan penelitian, siswa mengalami perubahan sikap setelah mereka diajarkan menggunakan Wordwall sebagai media pembelajaran. Perbedaan ini dapat terlihat dari segi partisipasi siswa dalam proses pembelajaran, seperti: (a) siswa yang berpartisipasi aktif dalam kegiatan pendidikan; (b) siswa yang patuh dalam mengumpulkan tugas pada waktu yang ditentukan; (c) siswa yang berani mengemukakan pertanyaan jika ada hal yang kurang dipahami oleh mereka. Hasil penelitian ini menyimpulkan bahwa pemanfaatan platform wordwall dalam proses pembelajaran Ilmu Pengetahuan Alam bagi siswa kelas 5 adalah efektif dalam meningkatkan minat dan motivasi mereka dalam belajar. Kata Kunci: Meningkatkan Hasil Belajar, Media pembelajaran, Media wordwall.
Does buck stimulation affect the reproductive performance of goats synchronized with Medroxyprogesterone Acetate (MAP) sponges?
Authors: Batool Iqra , Shahzad Muhammad , Hussain Tarique , Hussain Mujahid , Raza Ahmad , Mazhar Muhammad Waqar
Published: April 2024

This investigation was executed to determine effect of buck exposure on estrus response, onset of standing estrus, ovulation rate, conception rate and pregnancy rate in goats synchronized with medroxyprogesterone acetate (MAP) sponges. Sponges were placed inside the vagina for fifteen days in buck exposed and isolated groups. Post sponge withdrawal, estrus activities were continuously observed. The interval between sponge withdrawal and the onset of standing estrus were 32.3±10 h (18-51 h) and 45.2±10.9 h (27-51h) in buck isolated and exposed group respectively (p<0.05). Ovulation and conception rates were confirmed by serum progesterone level using radioimmunoassay. Ovulation rates were 100% in both groups and conception rates were 93% and 100% in buck exposed and in isolated group respectively (p>0.05). Pregnancies were confirmed by ultrasound on day 35 post mating which were 93%, was and 69% in buck exposed and isolated group respectively (p>0.05). Based upon the evidence, it was inference that post sponge removal sudden buck exposure cause markedly earlier estrus onset while the continuous buck exposure was unable to show significantly impact on conception and pregnancy rates compare to isolated group.
Conejera alternativa a pequeña escala y su monitoreo ambiental utilizando sensores basados en Internet de las cosas (IoT)
Authors: Jongbo Ayoola Olawole
Published: April 2024

Los conejos se ven afectados fácilmente por el estrés por calor que podría estar relacionado con sistemas de alojamiento inadecuados. La mayoría de los criadores de conejos apenas tienen un sistema de alojamiento estándar para sus conejos. Usaron cualquier diseño que consideraron para alojar a los conejos porque no tienen acceso a diseños de alojamiento apropiados para los conejos. Un sistema de alojamiento apropiado debe considerar adecuadamente el bienestar animal; requisitos de espacio por conejo y la altura de la jaula. Por lo tanto, el objetivo de este estudio fue desarrollar una conejera adecuada para climas tropicales húmedos y evaluar las condiciones térmicas, el índice de estrés por calor y la producción total de calor de conejos sometidos a condiciones climáticas cálidas. La cabaña fue desarrollada y probada. Las condiciones térmicas de la cabina se evaluaron utilizando sensores basados ​​en internet de las cosas (IoT). El resultado mostró que la temperatura del aire interior de la cabina fue 23,79 % inferior a la exterior y la humedad relativa interior 74,07 % superior a la exterior. También se descubrió que con un aumento de una unidad en el índice de estrés por calor, podría haber un aumento de 1342 kW en la producción total de calor de los conejos. Con la conejera en este estudio, existe la posibilidad de que los conejos no estén sujetos al estrés por calor durante las condiciones de clima cálido. La cabaña se desarrolló a un costo total de doscientos veintiocho dólares estadounidenses ($228,00).
EXPLORING FRAMEWORK BIAS: THE CASE OF MINIMALISM VS PARALLEL ARCHITECTURE IN STUDIES ON LANGUAGE EVOLUTION
Authors: BUZEC Mihaela
Published: April 2024

Exploring Framework Bias: The Case of Minimalism Vs Parallel Architecture in Studies on Language Evolution. The present paper explores the issue of framework bias through the analysis of two lines of study concerning language evolution, one framed by the Minimalist program and one by the proposal of Parallel Architecture of language. Framework bias, as proposed in this study, raises the question of the degree to which the theoretical framework chosen for a certain line of research will influence the design of an experiment, the selection of data, and therefore the analysis and final results. The studies presented in this paper tackle the same topic (language evolution) using the same parameters for research (gradual versus saltational evolution; continuation versus exaptation; and unique versus shared property) but reach significantly different conclusions because of their respective theoretical framework.
O explorare a influenței cadrului teoretic asupra rezultatelor cercetării: Programul Minimalist vs Arhitectura paralelă a limbajului în studii despre evoluția limbajului. Lucrarea de față explorează problema bias-ului creat de cadrul teoretic prin analiza a două linii de cercetare asupra evoluției limbajului, una centrată pe programul minimalist, iar cealaltă pe teoria arhitecturii paralele a limbajului. Bias-ul de cadru teoretic, astfel definit în lucrarea de față, ridică problema măsurii în care cadrul teoretic ales pentru o cercetare influențează design-ul unui experiment, alegerea corpusului de analiză, și implicit analiza în sine și rezultatele aferente. Studiile prezentate în această lucrare abordează aceeași temă (evoluția limbajului) folosind aceiași parametri de cercetare (evoluție graduală vs saltațională; continuare vs exaptare; și proprietate unică sau comună) dar ajung la concluzii semnificativ diferite din cauza cadrului teoretic ales de fiecare studiu în parte.
Cuvinte-cheie. bias de cadru teoretic, programul minimalist, arhitectura paralelă, evoluția limbajului
Article history: Received 19 January 2024; Revised 08 February 2024; Accepted 08 March 2024; Available online 27 March 2024; Available print 27 March 2024.
Accessibility for People with Disabilities in Public Services at UPTD LIPONSOS Kalijudan Surabaya City Social Service
Authors: Vancouver Achmad , Kriswibowo Arimurti
Published: April 2024

In fulfilling human rights, there must be no provisions that exclude and align one person with another regardless of the shortcomings and advantages of each person, including no difference in treatment for normal people and people with disabilities. Persons with disabilities have the right to obtain justice for the availability of public services. For mankind, the principle of justice is an important principle that humans crave as the highest ideal of mankind. The existence of 4 aspects that have been explained in the Surabaya City regional regulations, namely Convenience, Usability, Safety and Independence, are expected to be able to improve accessibility for people with disabilities. The research method used is descriptive qualitative method with literature study and observation in the form of interviews. The results showed that in the aspect of convenience, it is quite good even though there are still some things that have not shown maximum results such as the absence of handrail facilities leading to the bathroom and handrails for wheelchair users, then for aspects of usability, convenience and independence have shown very good results.
Analysis of Survival Strategies for Illegal Indonesian Workers in Malaysia
Authors: Silvia Misya , Amin Choirul
Published: April 2024

The increase in illegal Indonesian workers (TKI) every year is a polemic in itself; the opportunity to become an illegal TKI can be detrimental to the state and individual TKI because they will not get their rights and are vulnerable to problems with inappropriate labor administration. The Indonesian government must immediately resolve this problem to ensure that there are no more illegal Indonesian migrant workers coming to Malaysia. This research uses a qualitative method by collecting data through interviews, observation, and documentation from three sources on the survival of illegal migrant workers working in Malaysia. The analysis uses spatial and narrative analysis. This is a novelty in this research and direct observations in the field by the author. The research results show that the main factors for illegal migrant workers going to Malaysia are the availability of jobs, high wages, and the lure of families working there. The workers chose to be illegal because they did not have a valid visa, did not want to renew their advanced visa or a tourist visa, and switched to becoming workers in Malaysia. As for surviving as an illegal worker, the survival strategy for surviving as an illegal worker is to carry out economic, social, legal, and political survival strategies. This research is important to follow up on because many Indonesian citizens are still interested in working abroad illegally and not complying with established regulations, which can harm various parties.
Perceptions of students about augmented reality as a didactic resource of náhuat linguistic heritage: a case study with a control and experimental group
Authors: Sánchez Walter , Pina Alfredo , Rubio Gabriel
Published: April 2024

This article presents the results of a study on the impact of incorporating an augmented reality textbook and android mobile applications on the teaching-learning process of the náhuat language in public schools in El Salvador. To verify the first hypothesis, statistical inference was applied to determine the significance of the mark values between the control and experimental groups through the Mann-Whitney test and Brunner–Munzel’s test, previous verification of parametric assumptions of these tests, in total participated 150 students. To verify the second hypothesis, the results of student perception corresponding to the usage of the resources aforementioned, are also shown, administering questionnaire surveys to 113 students in total, through two questionnaires scored on a 5-point Likert scale statements and semantic differential scale items for additional data collection related to each Likert scale statement in the questionnaire. The results show that students perceive specific advantages linked to the usage of the náhuat augmented reality textbook and mobile android applications in the náhuat language teaching-learning process. This study leads to the conclusion that students enrolled in náhuat courses in public schools in El Salvador for this case study, greatly value the teaching-learning process mediated by augmented reality technology and mobile applications.
Homogeneidad y segregación escolar en escuelas situadas en contextos socioeconómicamente desafiantes. Visión de la comunidad educativa
Authors: Moreno-Medina Irene
Published: April 2024

Esta investigación tiene como objetivo conocer la percepción de los y las docentes de escuelas situadas en contextos desafiantes sobre la homogeneidad y segregación de sus escuelas. Para alcanzar este objetivo se realizan tres estudios de casos en escuelas situadas en contextos socioeconómicamente desafiantes. Los participantes fueron la comunidad educativa y los instrumentos principales utilizados fueron la entrevista semiestructurada y el análisis de los documentos claves. Los resultados señalan que la comunidad escolar percibe que sus escuelas son tratadas y convertidas en centros guetos, que existe una clara falta de compromiso por parte de la Administración ahora trabajar contra la segregación escolar y, en especial, en aquellas situadas en contextos socioeconómicamente desafiantes y la dificultad por parte de otras instituciones socioeducativas del barrio para trabajar contra este problema en soledad. Así, se evidencia la necesidad de conocer la visión de la comunidad escolar de los centros educativos situados en contextos socioeconómicamente desafiantes para poder trabajar contra esta lacra social, pues un sistema educativo verdaderamente justo no debe permitir la segregación escolar.
High-densitylipoprotein function in various pathological conditions
Authors: Smirnova N. N. , Kuprienko N. В. , Urazgildeeva S. А.
Published: April 2024

The review considers changes in the structure and function of high-density lipoproteins (HDL), which play an important role in the pathogenesis of a number of chronic diseases that somehow stimulate the development of atherosclerosis. HDL function has been shown to be impaired in a number of genetic and acquired diseases leading to dyslipidemia and associated with increased cardiovascular risk such as familial hypercholesterolemia, obesity, metabolic syndrome, chronic kidney disease, diabetes mellitus, inflammatory and autoimmune diseases.
Prognostic value of the intraoperative D-dimer level in arterial blood in open reconstructive operations on the aortoiliac segment
Authors: Zaitseva Yu. А. , Bedrov А. Ia. , Moiseev А. А. , Kadinskaia М. I. , Kovalchuk Iu. P. , Rybakov G. V. , Veremiichuk V. Iu. , Khubulava G. G.
Published: April 2024

The objective was to assess the prognostic value of D-dimer level in peripheral venous blood and arterial blood to the risk of developing complications in the short-term period after open reconstructive surgery on the aortoiliac segment.

Methods and materials. The study included 89 patients who were determined the D-dimer level in peripheral venous blood, as well as arterial blood intraoperatively.

Results. Statistically significant differences in the D-dimer level were established depending on the presence or absence of early postoperative complications.

Conclusions. The intraoperative D-dimer level in arterial blood has a predictive ability in relation to the development of early postoperative complications.
Psychological aspect of pain syndrome in endometriosis
Authors: Isaeva Е. R. , Vandeeva Е. N. , Pakhomova F. V. , Vorotnikova А. V. , Knizhnikova А. А.
Published: April 2024

Relevance. Endometriosis is a multifactorial gynecological disease characterized by a benign proliferation of endometrial cells outside the uterine cavity. At the present stage of the study of endometriosis, the etiology and pathogenesis of its development have not been studied enough. More and more attention is paid to the emotional and personal characteristics of patients, and the disease itself is gradually moving into the category of psychosomatic disorders.

The objective was to identify the features of the perception of pain syndrome, as well as emotional, personal characteristics and the level of adaptation of women with endometriosis.

Methods and materials. The study involved 76 respondents: 46 women with endometriosis and 30 women without gynecological pathology (conditionally). We used psychodiagnostic questionnaire methods aimed at studying the perception of pain syndrome, emotional sphere, level of adaptation, personal characteristics and gender identity.

Results. The personal profile of women with endometriosis is dominated by such traits as: anxiety, depression, difficulties in controlling life events, a decrease in the level of socio-psychological adaptation and satisfaction with the quality of life, a tendency to escape from reality in comparison with the personal profile of conditionally healthy women. It has been established that a higher assessment of the severity of pain syndrome in endometriosis is interconnected with such types of interpersonal interaction as «dependent-obedient» and «cooperating-conventional».

Conclusions. The treatment and rehabilitation of patients with endometriosis requires taking into account their psychological characteristics, as well as a multidisciplinary approach involving specialists of various profiles, including psychologists/ psychotherapists.
Subtelomeric rearrangements in mental retardation: Hacettepe University experience in 130 patients
Authors: Utine Gülen Eda , Celik Tolga , Alanay Yasemin , Alikaşifoğlu Mehmet , Boduroğlu Koray , Tunçbilek Ergül , Aktaş Dilek
Published: April 2024

Recent reports have revealed the presence of subtelomeric rearrangements in 0.5-1.1% of patients with mild mental retardation and in 6.8-7.4% of patients with moderate-severe mental retardation. In the present study, 130 patients with unexplained mental retardation were tested using fluorescence in situ hybridization (FISH) analysis for the first time in a large group of Turkish patients, in order to determine the frequency of subtelomeric rearrangements. Three patients had such rearrangements. We present the clinical findings in these patients with (1) coexistent 9p subtelomeric monosomy and 4q subtelomeric trisomy, (2) 22q13.3 subtelomeric monosomy, and (3) coexistent 4p subtelomeric monosomy and 8p subtelomeric trisomy. Mild retardation without dysmorphic features in one of these patients suggests offering subtelomeric analysis to a wide spectrum of mental retardation.
Medición del potencial aviturístico como estrategia de desarrollo local en el oasis La Purísima, Baja California Sur, México
Authors: Picasso Salazar Emmanuel , Rodríguez Villalobos Ismael , González Sousa Roberto
Published: April 2024

El aviturismo representa una de las actividades ecoturísticas con mayor impacto económico alrededor del mundo. Con una correcta planificación y práctica, aprovechando el potencial del territorio, esta modalidad de turismo puede representar una estrategia de desarrollo local, atrayendo beneficios directos hacia la comunidad. En Baja California Sur, México, predomina un tipo de clima muy seco-semicálido y cálido, esta característica le permite contar con más de 400 aves observables, por lo que, resulta ser una posible vía para el aprovechamiento sostenible de los recursos avifaunísticos. El presente estudio se centra en medir el potencial aviturístico de uno de los 171 oasis en Baja California Sur: oasis La Purísima. Se realizó un estudio de campo teniendo como sujetos de estudio a 17 personas locales que tienen conocimiento de las aves que visitan el oasis. El enfoque metodológico es bidimensional, se analizaron factores determinantes del potencial aviturístico mediante dos grupos de variables: endógenas (endemismo, abundancia, detectabilidad, valor estético y estado de conservación) y exógenas (medios de comunicación, vías de acceso, servicios básicos, precios y factor humano). A partir de lo anterior y como elemento distintivo, el estudio emplea una metodología innovadora que parte de una adaptación de instrumentos que, si bien fueron aplicados en oasis, no precisaban medir el potencial aviturístico, sino que lo hacían de manera genérica para el turismo de naturaleza y no sobre una actividad particular. Como resultados se demuestra que, en una escala de 0 a 1, el oasis cuenta con una valoración de 0.75, lo que le refiere posibilidades de desarrollar actividades de esta índole, esto permite diversificar la oferta turística existente, estimulando la economía local de la comunidad mediante el aprovechamiento de sus recursos naturales y promoviendo un desarrollo endógeno. Desde la óptica de los investigadores, se concluye que es importante para la comunidad adentrarse en este tipo de proyectos que incitan al desarrollo local, haciéndose partícipe desde la parte operativa, así como de la planeación en futuros instrumentos como son el plan de ordenamiento ecológico y territorial, ello brindará oportunidades para conservar estos frágiles pero importantes escenarios de singular valor.
Design of Onboard Avionics Based on Commercial Off-the-Shelf Parts for TianQi-2 Nanosatellite
Authors: Jiang Lianxiang , Lei Wang , Mingxiang Li , Teng Zhang , Peipei Xu
Published: April 2024

With the development of modern small satellite technology, short development cycles, low cost, and high reliability have become trends in the era of New Space. To achieve the above goals, an integrated centralized architecture of onboard avionics for an internet of things CubeSat was proposed, and CAN, I2C, and 1-wire buses were employed for telemetry collection and command sending. The implementation of onboard computers (OBCs) and the power conditioning and distribution unit (PCDU) was introduced based on the PC104 industrial standards. An arbitration switching strategy between the primary and backup OBCs was proposed so that the primary OBC had priority to be on duty. Over 98% of commercial off-the-shelf (COTS) parts were used to decrease costs, so a procedure for COTS part selection and a qualified method were presented for reliable application. The onboard avionics, including OBC and PCDU, were developed in six months, and the satellite has been in orbit for more than three years and still works well. The reliability of the onboard avionics developed using the philosophy of New Space is demonstrated by the three-year flight in orbit.
Individual Blade Control Approach for Active Vibration Suppression of a Lift-Offset Coaxial Rotorcraft
Authors: Hong Seong Hyun , Kim Dong Kyun , Jung Sung Nam
Published: April 2024

This study explores the best vibration reduction using an individual blade control (IBC) actuation scheme for a lift-offset coaxial helicopter in high-speed flight. The rotorcraft dynamics analysis model consists of coaxial, three-bladed counter-rotating rotors and a finite element fuselage stick model constructed based on the measured data of the XH-59A helicopter. The XH-59A helicopter is well-known for its severe vibration level encountered during the flight (over [Formula: see text]), leading to the cancellation of the development program. A special focus is given to assessing the accuracy and efficiency of the integrated rotor–body vibration predictions evaluated between the one-way and two-way coupling methods in reference to the flight data of the vehicle. The two-way rotor–body coupled results show excellent correlations with the test data for rotor blade loads and airframe vibrations. The best actuation scenarios are then sought for the minimum vibration at the rotor hub and the pilot seat. The IBC pitch actuation effectively reduces the vibrations at both locations of the rotorcraft. Specifically, a multiple-harmonic IBC actuation enables to suppress the pilot seat vibration by 93% compared to the uncontrolled case, achieving a significantly reduced vibration level (below [Formula: see text]).
Correlation of High-Speed Tiltrotor Stability Predictions with Test Data and Parametric Study
Authors: Gul Seyhan , Yeo Hyeonsoo
Published: April 2024

High-speed stability of tiltrotor was studied. The University of Maryland’s Maryland Tiltrotor Rig (MTR) was chosen for the analysis due to availability of properties and test data, and its interesting high-stability behavior observed in the Glenn L. Martin wind tunnel in August 2022. A Rotorcraft Comprehensive Analysis System (RCAS) model of the MTR gimbaled hub was built in addition to the University of Maryland Advanced Rotorcraft Code-II (UMARC-II) model from previous work. The objective is threefold: i) validate RCAS tiltrotor stability predictions, ii) shed light on the high-stability behavior of the MTR, and iii) find ways to lower the instability speed of the MTR for future wind tunnel tests. Trim collective for freewheeling and stability predictions were compared with wind tunnel test data up to 200 knots. RCAS and UMARC-II predictions showed good agreement with each other and the test data. Predictions show that MTR is stable up to 215 knots (490-knots full-scale flight) although the wing is only 18% thick (current technology is 23%). A parametric study was carried out. The impact of wing stiffness, pitch-flap coupling ([Formula: see text] angle), lag stiffness, blade chord, number of blades, pylon mass, pylon center of gravity (c.g.), pylon location, and rotor speed was studied. MTR’s pylon c.g. is unconventionally behind the wing elastic axis. It was found that this significantly improved stability. This behavior is not specific to MTR; full-scale aircraft stability can also be improved by moving the pylon c.g. backward if wing beam is the least stable mode. A combination of forward pylon c.g., reduced rotor speed, and increased blade chord reduced the instability speed by more than 55 knots to near 160 knots, helping researchers obtain high-quality test data in the upcoming Glenn L. Martin wind tunnel tests.
A boy with type 1 diabetes who could not do ‘Namaste’!
Authors: Banerjee Sayan , Yadav Jaivinder , Kumar Rakesh
Published: April 2024

Limited joint mobility (LJM) is a common manifestation of chronic suboptimal glycemic control in type 1 diabetes (T1D). The LJM can be elicited with simple clinical signs. We describe a 13-year-old boy with T1D and LJM.
Fatal convexity and interhemispheric acute subdural hematoma from a falx meningioma: A case report
Authors: Tanaka Tatsuya , Kyaw May Pyae , Anai Satoshi , Takase Yukinori , Takase Yukari , Abe Tatsuya , Matsuno Akira
Published: April 2024

Background:

Hemorrhagic meningiomas are rare. We report a rare case of nontraumatic convexity and interhemispheric acute subdural hematoma (ASDH) caused by a falx meningioma.

Case Description:

An 84-year-old woman with a history of atrial fibrillation and hypertension who was taking warfarin presented to our emergency department with a sudden disorder of consciousness. The patient had no traumatic events associated with her symptoms. Computed tomography (CT) revealed right convexity and interhemispheric ASDH, mass lesions in the left frontal lobes, and brain herniation. Contrast-enhanced CT revealed vascular structures within the mass lesion. CT angiography (CTA) revealed no aneurysm or arteriovenous malformation, and the venous phase revealed occlusion in the anterior portion of the superior sagittal sinus. The patient had her right convexity and interhemispheric ASDH removed endoscopically. A mass lesion located on the falx, which was easily bleeding, soft, and suctionable, was immediately detected. Histopathological examination revealed fibrous meningioma, a benign meningioma of the World Health Organization grade 1. Despite undergoing aggressive treatment, the patient’s general condition deteriorated.

Conclusion:

Hemorrhagic meningiomas can easily be missed with plain CT, and the enhancement effect of CTA and tumor shadow on digital subtraction angiography may not be observed during the acute phase. Surgery for nontraumatic ASDH should be performed considering the possibility that a meningioma causes it.
Recent Developments in Materials and Applications of Triplet Dynamic Nuclear Polarization
Authors: Hamachi Tomoyuki , Yanai Nobuhiro
Published: April 2024

Dynamic nuclear polarization (DNP) is a method for achieving high levels of nuclear spin polarization by transferring spin polarization from electrons to nuclei by microwave irradiation, resulting in higher sensitivity in NMR/MRI. In particular, DNP using photoexcited triplet electron spins (triplet-DNP) can provide hyperpolarized nuclear spin state at room temperature and low magnetic field. In this review article, we highlight recent developments in materials and instrumentation for the application of triplet-DNP. First, a brief history and principles of triplet-DNP will be presented. Next, important advances in recent years will be outlined: new materials to hyperpolarize water and biomolecules; high-sensitivity solution NMR by dissolution triplet-DNP; and strategies for further improvement of the polarization. In view of these developments, the future directions for the wider range of application of triplet-DNP will be discussed.
Nanobody Engineering: Computational Modelling and Design for Biomedical and Therapeutic Applications
Authors: El Salamouni Nehad , Cater Jordan , Spenkelink Lisanne , Yu Haibo
Published: April 2024

Nanobodies, the smallest functional antibody fragment derived from camelid heavy-chain-only antibodies, have emerged as powerful tools for diverse biomedical applications. In this comprehensive review, we discuss the structural characteristics, functional properties, and computational approaches driving the design and optimisation of synthetic nanobodies. We explore their unique antigen-binding domains, highlighting the critical role of complementarity-determining regions in target recognition and specificity. This review further underscores the advantages of nanobodies over conventional antibodies from a biosynthesis perspective, including their small size, stability, and solubility, which make them ideal candidates for economical antigen capture in diagnostics, therapeutics, and biosensing. We discuss the recent advancements in computational methods for nanobody modelling, epitope prediction, and affinity maturation, shedding light on their intricate antigen-binding mechanisms and conformational dynamics. Finally, we examine a direct example of how computational design strategies were implemented for improving a nanobody-based immunosensor, known as a Quenchbody. Through combining experimental findings and computational insights, this review elucidates the transformative impact of nanobodies in biotechnology and biomedical research, offering a roadmap for future advancements and applications in healthcare and diagnostics.
Triptycene-based diiron(II) mesocate: spin-crossover in solution
Authors: Mobili Riccardo , Preda Giovanni , Dondi Daniele , Monzani Enrico , Vadivel Dhanalakshmi , Massera Chiara , Pasini Dario , Amendola Valeria
Published: April 2024

Triptycene-based diiron(II) and dizinc(II) mesocates were obtained using a novel rigid ligand with two pyridylbenzimidazole chelating units fused into the triptycene scaffold. Studies on the diiron(II) assembly in solution showed that the complex undergoes thermal-induced one-step spin-crossover with T1/2 at 243 K (Evans method).