bluuebunny/crossref_metadata_2025 huggingface dataset:
Ciudadanía y ética: Reflexiones desde la obra de Adela Cortina para señalar nuevos horizontes en el contexto educativo colombiano
Authors: Porras Fula Diana Marcela , Rueda Pimiento Óscar Eduardo
Published: November 2024

Este artículo de reflexión revisa la idea de la construcción de una nueva ciudadanía, como un deber moral y social que estamos llamados a realizar en nuestras prácticas de aula. Las prácticas en el aula que se han dado durante los últimos tiempos impactan significativamente en los procesos de enseñanza- aprendizaje y han tenido que enfrentar retos como las diversas formas de pensar y de expresarse de los estudiantes, han llevado consigo la responsabilidad del papel transformador del entorno escolar a partir de las experiencias que logren ser significativas dentro del aula. Desde esta perspectiva, este artículo se orienta en un trabajo de enfoque cualitativo, con un alcance descriptivo propositivo, el cual busca reflexionar sobre los procesos de formación, orientación y acompañamiento dentro del aula, que contribuyan a la construcción de ciudadanía desde una educación centrada en valores y la moralidad.
Análisis crítico sobre la gestión administrativa del sector público costarricense
Authors: Tullocks Abarca Julio Antonio
Published: November 2024

The management of the Costa Rican public sector has been undergoing a series of changes ranging from administrative management to the focus on the services provided to the user, in addition to the economic crisis that the State is going through, which has contributed to the valuation of the efficiency of its institutions. This has generated challenges that hinder its efficiency, from basic elements of agility and modernization to the provision of services for taxpayers and other users; the lack of transparency in the processes, the quality of services and the non-completion of works have been continuously more noticeable problems, which lead us to ask ourselves which elements affect administrative management.
Design preferences for contemporary Chinese-style wooden furniture: Insights from conjoint analysis
Authors: Cui Xiaolei , Xu Jindong , Dong Huajun
Published: November 2024

Chinese wooden furniture occupies a central role in the nation’s cultural and historical heritage, serving not only as practical household items for period classification, but also as symbols of social status and artistic achievement. Recently, a new wave of Chinese-style furniture that blends traditional design elements with modern aesthetics has gained considerable market attention and recognition. This paper utilizes Conjoint Analysis to thoroughly investigate and assess consumer preferences and the visual appeal of contemporary Chinese-style furniture, leveraging a combination of user experience surveys and eye-tracking technology. This study suggests a sustained social interest in the materiality of Chinese heritage, emphasizing its relevance in today’s culture. The findings show that in subjective evaluations, consumers prioritize material selection. Eye-tracking data reveals that “material,” particularly “redwood,” demands more intensive cognitive processing during the fixation stage. However, “decoration type” plays a dominant role in visual searches across multiple stages, indicating that consumers employ varied cognitive strategies when interacting with different product attributes. Additionally, consumers’ focus on backrests and pattern craftsmanship offers valuable insights into future market trends.
"Influencing factors of double roll coating ratio of reconstituted tobacco by papermaking
Authors: Li Huifan , Liu Yuxin , Liu Jing , Dong Gaofeng , Li Zhongren , Zhang Wenjun
Published: November 2024

To investigate and elucidate the influencing factors and laws of double-roll coating ratio (CR) for papermaking reconstituted tobacco and to assess the effectiveness of CR in characterizing the finished product’s hot water soluble (HWS) content, base sheet (BS) specimens of reconstituted tobacco with varying bone-dry basis weights and moisture contents were prepared. These sheets were then coated with different physical indices of coating liquids using a small double-roll coater at different sheet speeds. Subsequently, the CR and HWS content of the finished product were analyzed. The results showed that when the viscosity of the coating liquid was > 280 mPa·s, the moisture content of the BS should be maintained between 18% and 22%, and the speed of the BS should be > 120 m/min; when the viscosity of the coating liquid is < 280 mPa·s, the moisture content of the BS should be maintained between 14% and 18%, and the speed of the BS should be > 120 m/min, so that higher HWS can be obtained in finished products. The bone-dry basis weight of the BS should be kept between 40 and 60 g/m2. The suspension solid content of coating liquid should be < 9.5%.
A methodological framework for sustainable housing for displaced populations
Authors: Gueroui Asma , Halada Miklos
Published: November 2024

This research highlights the role of sustainability aspects focusing on socio-cultural parameters and environmental performance in designing more comfortable and sustainable shelters. Following a two-mixed method approach, on the one hand, a comparative analysis is presented of IKEA Better Shelter, Rwandan Mud-Brick, and Nepali shelters by examining the cultural integration into their design (traditional layouts and shared spaces), their adaptability, and their environmental performance. On the other hand, a qualitative survey determines the level of satisfaction regarding space, comfort, social interaction, and cultural fit among residents. The results show that traditional building methods with the use of local materials, offer high privacy levels, excellent thermal and acoustics comfort, good cultural appropriateness and minimal environmental impact.
The influence of environmental factors on the mineral profile of children and the immune response to citomegalovirus infection
Authors:   Kharkiv National Medical University, Ukraine, Frolova T.V. , Amash A.G. ,   Kharkiv National Medical University, Ukraine, Savvo O.M. ,   V.N. Karazin Kharkiv National University, Ukraine, Sliepchenko M.Yu. ,   Kharkiv National Medical University, Ukraine, Osman N.S. ,   Kharkiv National Medical University, Ukraine, Siniaieva I.P. ,   V.N. Karazin Kharkiv National University, Ukraine, Tereshchenkova I.I. ,   Kharkiv National Medical University, Ukraine, Stenkova N.F. ,   Kharkiv National Medical University, Ukraine
Published: November 2024

Aim - determination of the mineral imbalance influence in children, who are living in areas of a large city with different environmental characteristics, on the immune response to cytomegalovirus infection (CMVI). Materials and methods. 128 children with CMVI were examined and distributed depending on the environmental conditions of the residence area and the disease's activity: I group - 66 children, who lived in a conditionally clean district (CCD): I-a - 40 children with latent CMVI (lCMVI), I - b group - 26 children with active CMVI (aCMVI); II group - 62 children from a conditionally dirty district (CDD): II-a - 34 children with lCMVI and II-b group - 28 children with aCMVI. The indicators of the children's mineral profile were determined in the hair by the methods of X-ray fluorescence spectrometry and γ-activation analysis. The state of the cellular and humoral immunity, the levels of interleukins were studied in the blood serum. The obtained data were processed by the StatSoft Statistica 6.1 program. Results. The children with lCMVI, who living in CDD, had a significant increase of the Sr, Cr, Pb, Ni, Zn levels, a decrease of Cu and Fe in hair samples and significantly higher indicators of IL-1β and TNF-α, which were determined in comparison with the indicators of children from CCD. The direct correlation was established between the content of Pb, Ni, Sr, Cr in hair samples and an increasing the levels of anti-inflammatory interleukins. Conclusions. Living of children in conditionally polluted areas of a large city is a risk factor for the formation of macro- and microelement imbalance with the accumulation of conditionally toxic elements. It has been proven that an imbalance of the mineral profile negatively affects the immune response in children with lCMVI. The study was carried out in accordance with the principles of the Declaration of Helsinki. The study protocol was approved by the Local Ethics Committee for all participants. The informed consent of the patient was obtained for conducting the studies. No conflict of interests was declared by the authors.
Analysis of complications of pregnancy, childbirth, the postpartum period and extragenital morbidity in pregnant women in Ukraine and forecasting the dynamics of selected indicators until 2026
Authors:   Bogomolets National Medical University, Kyiv, Ukraine, Vezhnovets T.A. , Guryanov V.G. ,   Bogomolets National Medical University, Kyiv, Ukraine, Korotkyi O.V. ,   Bogomolets National Medical University, Kyiv, Ukraine,, Orabina T.M. ,   Bogomolets National Medical University, Kyiv, Ukraine, Gerevich N.V. ,   Bogomolets National Medical University, Kyiv, Ukraine, Govsieiev D.O. ,   Bogomolets National Medical University of Ukraine, Kyiv
Published: November 2024

Aim - evaluation of the quality of obstetric care in Ukraine and forecasting the dynamics of intranatal morbidity and complications of the postpartum period for the period until 2026. Materials and methods. Statistical data of healthcare institutions of Ukraine for the period 2011-2022 were analyzed. One-factor linear regression models were used for mathematical modeling. Calculations by MedCalc® Statistical Software version 22.009. Results. According to the data of the conducted analysis, the following stable trends were revealed: a decrease in the total number of births from 491,467 to 195,243; decrease in the share of physiological births from 68.6% to 61.6%; an increase in the number of multiple pregnancies (calculations per 1,000 pregnancies) from 10 to 13 per 1,000; number of pathological venous conditions from 25 to 50; number of gestational and pre-gestational diabetes from 1 to 10; the number of infections of the genitourinary system from 134 to 143. Pathologies of the circulatory system and diseases of the thyroid gland do not have a tendency to increase. The analysis of indicators related to childbirth revealed a significant increase in cesarean delivery from 16.17% to 27.43% with a further increase to 31.4% in 2026, an increase in the level of bleeding from 7.3 to 9.9 and the number of complicated births from 58 to 70 (the figures are calculated for 1000 births). Conclusions. During the period of analysis, no significant deterioration in the quality of obstetric care was found, however, there are a number of negative trends, namely, an increase in the frequency of difficult childbirth and cesarean delivery. In the near future, we should expect a decrease in the total number of births, a decrease in the share of physiological births, an increase in the frequency of pre-existing somatic diseases and pregnancy complications, and an increase in the specific gravity of multiple pregnancies. The result will be a further increase in cesarean deliveries, and an increase in the frequency of abnormal placentation and associated heavy bleeding. The key approaches to managing the identified trends are the development and implementation of algorithms for timely detection of pregnant women at risk of developing perinatal and obstetric complications and optimal routing of pregnant women who are included in the formed risk groups for the occurrence of severe obstetric and perinatal pathology. The authors declare no conflict of interest.
Juvenile fibroadenoma: modern trends in diagnosis and treatment of multiple and recurrent forms of pathology (analytical review of the literature and own observation)
Authors:   National Pirogov Memorial Medical University, Vinnytsia, Ukraine, Konoplitskyi V.S. , Korobko Yu.Ye. ,   National Pirogov Memorial Medical University, Vinnytsia, Ukraine, Pasichnyk O.V. ,   National Pirogov Memorial Medical University, Vinnytsia, Ukraine, Shyshkovskyi O.M. ,   СEI «Vinnytsia Regional Children’s Clinical Hospital of Vinnytsia Regional Council», Ukraine, Mykhalchuk T.I. ,   National Pirogov Memorial Medical University, Vinnytsya, Ukraine, Dymchyna Yu.A. ,   National Pirogov Memorial Medical University, Vinnytsya, Ukraine
Published: November 2024

Neoplastic lesions of the mammary gland in children are mostly benign in nature, which is associated with the normal development of the mammary gland. Malignant neoplasms in childhood are very rare. The specific gravity of breast cancer in teenagers is no more than 0.1 % of all breast cancer cases and less than 1% of all cancer cases among children. The malignant potential of breast fibroadenoma is quite low and ranges from 0.125% to 0.02%. The aim is to highlight modern approaches diagnosis and treatment of juvenile fibroadenoma according to literature sources and own experience. The conducted analysis of the state of modern scientific research regarding the problem of fibroadenoma in general and especially their juvenile forms, taking into account a certain own experience in the treatment of this pathology, prompts, in our opinion, the expediency of considering the recurrent course of the disease in pediatric practice from the angle of possible "continued growth" in relation to the pathological condition in general. The phenomenon of "continued growth" should be specifically discussed only in those cases, in the process of primary removal of juvenile fibroadenomas in one and/or contralateral mammary gland, during clinical and instrumental examination, there are no signs of any additional neoplasms. Juvenile fibroadenoma in pediatric treatment remains an actual problem that requires further fundamental and multifaceted study and wider coverage among specialists of various specialties – pediatric surgeons, pediatric gynecologists, mammologists, pediatricians, family doctors. In the modern medical literature, studies regarding the recurrent course of juvenile fibroadenoma are insufficiently covered, which hinders the development of a modern strategy for the treatment of this pathological condition, including the determination of predictors of the disease and its stages, indications for surgical intervention. In the case of recurrent course of juvenile fibroadenoma, regardless of the size of the tumor, it is necessary to enucleate the tumor with its mandatory morphological verification. The authors declare no conflict of interest.
Personal experience of simultaneous surgical treatment of patients with deep infiltrative endometriosis affecting the rectosigmoid sections of the large intestine
Authors:   Shupyk National Healthcare University of Ukraine, Kyiv, Savoliuk S.I. , Shevaga O.Y. ,   Shupyk National Healthcare University of Ukraine, Kyiv, Zavertylenko D.S. ,   Shupyk National Healthcare University of Ukraine, Kyiv
Published: November 2024

Endometriosis affects approximately 10% of women globally and can lead to infertility (30-50% of cases) and a significant decline in quality of life. One of the most severe forms of this disease is deep infiltrative endometriosis (DIE). Аim - to evaluate the effectiveness of multidisciplinary surgical treatment for patients with DIE in the short term. Materials and methods. The study included 18 patients with confirmed DIE and bowel involvement, treated. Laparoscopic surgical interventions were performed following Enhanced Recovery After Surgery principles. The parameters assessed included the duration of surgery, pain level, length of hospital stay, and early postoperative complications. Results. The average duration of surgery was 145.83±15.3 minutes. Bowel involvement was localized to the anterior surface of the rectum in 7 cases and the rectosigmoid area in 4 cases. The average size of endometriotic lesions was 3.83±0.75 cm. All resections were performed with R0 margins, and no protective stoma was placed. Early postoperative complications included transient nausea and vomiting in 6 patients, managed conservatively. Pain levels, measured by the ACCS scale, were 57.51±10.51 points at 12 hours post-operation and 19.7±8.51 points after 24 hours. The average hospital stay was 3.66±0.81 days. After 3 months, 6 patients reported complete symptom relief, 6 noted significant symptom reduction, and 12 experienced improved quality of life. Conclusions. Multidisciplinary laparoscopic surgical treatment of deep infiltrative endometriosis with bowel involvement is safe and effective in the short term. Patients show significant improvement in quality of life and reduction in pain. However, long-term evaluation of the condition is necessary. The research was carried out in accordance with the principles of the Helsinki Declaration. The study protocol was approved by the Local Ethics Committee of participating institution. The informed consent of the patient was obtained for conducting the studies. No conflict of interest was declared by the authors.
Clinical and paraclinical characteristics of inflammatory bowel diseases with very early onset in children
Authors:   SI Institute of Pediatrics, Obstetrics and Gynecology named after academician O.M. Lukyanova of the NAMS of Ukraine, Kyiv, Kovalchuk A.A. , Dukareva S.V. ,   SI Institute of Pediatrics, Obstetrics and Gynecology named after academician O.M. Lukyanova of the NAMS of Ukraine, Kyiv, Marushko T.L. ,   SI Institute of Pediatrics of Obstetrics and Gynecology named after academician O.М. Lukyanova of the NAMS of Ukraine, Kyiv, Mostovenko R.V. ,   National Children's Specialized Hospital “OKHMATDYT”, Kyiv, Ukraine, Shadrin V.O. ,   Bogomolets National Medical University, Kyiv, Ukraine, Bondarenko N.Yu. ,   Bogomolets National Medical University of Ukraine, Kyiv, Goryanska M.G. ,   SI Institute of Pediatrics, Obstetrics and Gynecology named after academician O.M. Lukyanova of the NAMS of Ukraine, Kyiv
Published: November 2024

Over recent decades, there has been a notable increase in the incidence of inflammatory bowel disease (IBD) among children under the age of six. The management of such patients is challenging due to the severe and treatment-resistant course of the disease, alongside atypical presentations. Aim - examine the clinical and paraclinical features of IBD with an onset at a very young age. Materials and methods. The study involved 10 young children diagnosed with IBD including 3 with Crohn's Disease (CD), 2 with Ulcerative Colitis (UC), and 5 with an unclassified form of IBD. Clinical, anamnestic, laboratory, endoscopic, and histopathological methods was employed to gather comprehensive data on each case. Results. Six children experienced a severe course, while four had a moderate disease course. Identified triggers included COVID-19 or rotavirus infections, food allergies, and early artificial feeding. Three children had a family history of IBD. For 80% of children, IBD onset occurred within the first year of life following the escalation of war in Ukraine, with a severe, treatment-resistant progression. Symptoms and laboratory findings were similar in children with CD and UC. Endoscopic and histopathological findings revealed the chronic inflammation in the colon of 80% patients, with two CD patients showing terminal ileitis. In 50% of cases, endoscopic and histological features were ambiguous, presenting characteristics of both CD and UC (IBD- unclassified). Conclusion. IBD in early childhood is marked by high inflammatory activity involving the entire colon, with overlapping clinical, endoscopic, and histopathological characteristics between CD and UC, complicating accurate diagnosis and expanding the group classified as IBD- unclassified. The study adhered to the Helsinki Declaration principles, received ethical approval from local ethical committee, and obtained parental consent for child participation. Authors report no conflicts of interest.
Clinical and immunological features of rotavirus infection in children infected with herpesviruses
Authors:   Kharkiv National Medical University, Ukraine, Sliepchenko M.Yu. , Olkhovska O.M. ,   Kharkiv National Medical University, Ukraine, Kolesnyk Ya.V. ,   Kharkiv National Medical University, Ukraine, Gavrylov A.V. ,   Kharkiv National Medical University, Ukraine
Published: November 2024

The basis for conducting the study was the absence in the scientific literature of works devoted to the study of clinical and immunological features of rotavirus infection (RVI) in children against the background of the latent form of herpesvirus infection (lHVI) caused by cytomegalovirus (CMV) and human herpesvirus type 6 (HHV-6). The aim - to identify clinical and immunological features of RVI in children with lHVI caused by CMV and HHV-6 that will contribute to the early diagnosis of lHVI in patients. Materials and methods. A total of 81 children aged 12-36 months with RVI were examined. The Group 1 included 33 children who were not found to be infected with any of the herpesviruses. The Group 2 included 17 children who were suffering from RVI against the background of lHVI caused by CMV. The Group 3 included 31 children suffering from RVI against the background of lHVI caused by HHV-6 type. Statistical processing of the results was carried out using the IBM® SPSS® 25.0 program for Microsoft® Windows®. The results. The presence of lHVI caused by CMV in the acute period (AP) of RVI leads to lower indicators of temperature reaction, lower frequency of vomiting, a decrease in the immunoregulatory index (IRI) against the background of an increase in the level of CD8+ T-lymphocytes. In addition to lower numbers of the temperature reaction, the level of IgA was increased in children with lHVI caused by HHV-6. During the convalescent period (CP), CMV is associated with an increase in the duration of fever and diarrhea, an increased content of CD8+ T-cell counts, and lower IRI, CD16+, CD22+ T-cells, and IgM scores. In patients with lHVI caused by HHV-6, fever, diarrhea, and catarrhal syndrome persisted longer against the background of reduced levels of IRI, CD22+ T cells, and IgM. Conclusions. lHVI is caused by CMV and HHV-6, it has different effects on clinical and immune indicators in children with RVI. The research was carried out in accordance with the principles of the Declaration of Helsinki. The research protocol was approved by the Local Ethics Committee of the institution indicated in the work. The informed consent of the patient was obtained for conducting the studies. No conflict of interests was declared by the authors.
Comparative Study of the Effect of Aqueous Seed Extract of Tetracarpidium conophorum (Walnut) and Leaf Extract of Annona muricata (Soursop) on Calcium Level and the Lipid Profile of Male Wistar Rats.
Authors:   Department of Physiology, Faculty of Basic Medical Sciences, Chukwuemeka Odumegwu Ojukwu University, Uli campus, Anambra State, Nigeria., Oguekwe OD , Oguwike FN , Nwozor CM , Odikpo NI
Published: November 2024

The study examined the lipid profile and calcium levels in male Wistar rats treated with Tetracarpidium conophorum and Annona muricata extracts. Twenty-Five (25) male Wistar rats weighing 150–170 g were randomly divided into five groups of five rats each. Groups A and B received 1000 and 500 mg/kg of aqueous seed extract of Tetracarpidium conophorum, respectively. Groups C and D received 1000 and 500 mg/kg aqueous leaf extracts of Annona muricata, respectively, and group E received feed and water only for 30 days. Data obtained for lipid profile (total cholesterol, low-density lipoprotein, high-density lipoprotein, triglyceride, and very low-density lipoprotein) and calcium level were analyzed using ANOVA followed by post-hoc Fisher’s LSD, and values were presented as mean ± standard error of mean (SEM). Level of significance was p < 0.05. The results showed a significant decrease in total cholesterol levels in groups A, B, and C, while group D had a non-significant decrease compared to group E. Triglyceride result revealed a significant reduction in groups A and C, while groups B and D had a non-significant decrease compared to group E. There was a non-significant decrease in the LDL levels in groups A and D, while groups B and C had a significant decrease compared to group E. The HDL result showed a non-significant increase in groups A, B, C, and D compared to group E. A non-significant increase in serum calcium level in groups A, B, and C, while group D had a significant increase compared to group E. The study concludes that T. conophorum and A. muricata extracts reduced cholesterol, triglycerides, and low-density lipoprotein cholesterol, increased HDL. A. muricata alone significantly increased serum calcium level.
Preliminary changes in the humoral and cellular response of shrimp Litopenaeus vannamei during the acclimatization to different salinity
Authors: BAUTISTA COVARRUBIAS JUAN CARLOS , Hernández-Mendoza Edgar Gabriel , López Sánchez José Armando , González Hermoso Juan Pablo , Pacheco Vega Juan Manuel
Published: November 2024

In Nayarit Mexico, the shrimp Litopenaeus vannamei (Boone, 1931) is one of the most widely used species grown on farms, due to its tolerance to a wide range of salinity, probably caused by salinity decreased in the shrimp ponds during rainy season from 35 to 5 practical salinity units (psu) The purpose of this work was to evaluate the response of shrimp to the acclimatization process during both decreasing salinity (10 psu, 7 psu, 5 psu and 2 psu) and its gradual increase (2 psu, 5 psu, 7 psu and 10 psu). The variables determined were, hemocyanin concentration, total count, and differential count of hemocytes in juvenile shrimp. Shrimp clotting time from both experiments was not altered. Hemocyanin increased significantly (P <0.05) with the reduction of salinity while hemocytes tended to decrease as salinity decreased, and to increase when salinity increased. Hyaline hemocytes showed a higher percentage when salinity increased, showing significant differences (P <0.05) in shrimp from both experiments. Finally, the acclimatization process did not affect survival, and the differences between the determined variables could be related to the decrease in salinity.
Samat tavat, erilaiset tarinat – Suomalaisten pelaajien urheilupolut Jalkapallon A-maajoukkueeseen – Similar Practices, Different Stories – Finnish Players' Sporting Paths to the Senior National Football Team
Authors: Szerovay Mihaly , Hölttä Alexander , Paananen Markus , Louste, Henri Louste, Henri , Koski Samu , Rantala Juho , Niku Jenni
Published: November 2024

Suomalaisen jalkapallon ja futsalin vuosien 2025–2028 strategian keskeisiä tavoitteita ovat pelaajien murtautuminen kansainväliselle huipulle sekä maajoukkueiden menestyminen arvokisoissa. Strategisten tavoitteiden saavuttamiseksi tarvitaan syvällisempää ymmärrystä siitä, millaista polkua suomalaiset A-maajoukkuetason saavuttaneet jalkapalloilijat ovat uransa aikana kulkeneet. Tässä selvitystyössä tarkastellaan Suomen jalkapallon A-maajoukkuepelaajien urheilupolkuja ennen maajoukkuedebyyttiä seuraavien tutkimuskysymysten avulla: 1) Millaisia jalkapallon A-maajoukkuepelaajien urheilupolkuprofiileja voidaan tunnistaa? 2) Millaisia ovat olleet nykyisten jalkapallon A-maajoukkuepelaajien kokemukset heidän urheilupoluistaan?

Players to international elite level and National teams’ success in final tournaments are key objectives in the 2025–2028 strategy for Finnish football and futsal. To achieve these goals, it is necessary to gain a deeper understanding of the sport paths that Finnish football players, who have reached the senior national team level, have followed since their childhood. This study examines the sports paths of Finland’s senior national team football players before their national team debut through the following research questions: 1) What types of sports path profiles can be identified among national team football players? 2) What have been the experiences of current senior national team football players regarding their sports paths?
Regeneración natural de la selva alta perennifolia en cultivos abandonados de café (Coffea arabica L.) en Veracruz, México
Authors: Aquino-Zapata Ana María , Carvajal-Hernández César I. , Martínez Armando J. , Pedraza-Pérez Rosa Amelia , Álvarez-Aquino Claudia
Published: November 2024

Background: The tropical rain forest (TRF) has been transformed by the land use change. Coffee plantations are part of the landscape, and their abandonment can favor the original vegetation regeneration.
Hypothesis: The abandoned coffee plantations protection in TRF favors natural regeneration, allowing the development of secondary forests in different succession phases.
Study site: Colipa, Veracruz, Mexico. Two abandoned coffee plantations and a fragment of TRF.
Methods: In 24 transects (50 × 2 m), diameters and heights of woody species (DBH ≥ 5 cm) were recorded and measured. In each transect, quadrants (2 × 2 m) were marked to record shrub and seedlings species. Regeneration status was evaluated through densities of seedlings, juveniles and adults.
Results: 60 species were recorded. The highest number of species was present in the TRF and the nearby coffee plantation, they were the sites with the most shared species. The other coffee plantation (3 km away) had the highest density of trees while the TRF had the highest bushes and seedlings density. The 50 % of the species characteristic of TRF in the área are regenerating in coffee plantations, while cultivated species showed poor or no regeneration.
Conclusions: After more than 25 years of abandonment, the structure and composition of species is similar to the TRF. Abandoned shade coffee plantations contribute to natural regeneration and function as reservoirs of native germplasm for the region.
Cross-cultural specificity of perception of affective videos (Russian-Polish correspondences)
Authors:   Tomsk State University, Ivankova Ksenia S.
Published: November 2024

Currently, the influence of culture in all areas of human life is undeniable. Culture plays a major role in shaping our perception and expression of emotions. It has been proven that representatives of different cultures can perceive the same phenomena, objects and images as evoking or not evoking emotions. The article focuses on the perception of affective video images by respondents of two closely related cultures – Poles and Russians. The intercultural and gender comparison by the method of psycholinguistic questioning using the scaling technique is used to test the hypothesis that the existing cultural differences between Russians and Poles may have different effects on their perception and evaluation of videos. The evaluation of affective videos by Polish and Russian respondents is compared by the type of stimulus valence (i.e. by the type of its emotional assessment – negative or positive) and the strength of its impact on the emotional state. Twenty fragments of short cartoons from the database of affective stimulus material of Polish researchers were used as stimulus material. The study involved 93 repondents (34 men, 58 women) aged 18 to 60. The analysis has not shown significant cross-cultural differences in the assessments of affective videos in terms of the type of valence and arousal. In general, respondents rated affective videos equally, regardless of cultural localization. There were also no gender differences in the studied parameters. However, the influence of the valence type of an emotional stimulus on the processing of emotional units by representatives of different cultures has been revealed: Russians assessed negative videos higher in terms of the strength of emotional impact, unlike Poles. It is assumed that the kinship of languages and the proximity of cultures cause a similar perception and assessment of emotions.
The unpublished correspondence between Slavists Vatroslav Yagić and Evgeniy Kozak from the collections of Chernivtsi University Research Library and the National and University Library in Zagreb
Authors:   Vienna University, Hryaban Viktoriya
Published: November 2024

This article studies the unpublished correspondence of two prominent Slavists in Austria-Hungary from the late 19th – early 20th centuries: Vatroslav Jagić (1838–1923) and the Rector of Chernivtsi University, Professor of Church Slavonic, a Russophile priest, Evgeniy Kozak (1857–1933). Unlike the Jagić archive, preserved in the collection of manuscripts of the National and University Library in Zagreb, which has already been researched, Kozak’s epistolary was only recently discovered in the collections of the Research Library of Chernivtsi University. As it turned out, Kozak’s epistolary archive is preserved only partially and is still unknown to a wide range of researchers. This correspondence combines business and personal letters. This study continues the research on Kozak’s life and work, published in 2023.
Polish imperative constructions in the Russian business language of the Petrine era
Authors:   St. Petersburg State University, Rudnev Dmitriy V. ,   Institute for Linguistic Studies of the Russian Academy of Sciences
Published: November 2024

The article studies the imperative models of Polish origin in documentary texts of the Petrine era, namely: models with the meaning of obligation imet’, povinen, nadlezhat’ (+ infinitive), of permission pozvolit’, dozvolit’, dopuskat’/dopushchat’, volen, vol’no (+ infinitive), of prohibition ne povinen, ne imet’, ne nadlezhat’, ne vol’no, ne dopuskat’, ne pozvolit’ (+ infinitive). Their inclusion in Russian business speech became part of a more general process of renewal and modernization under Peter I’s administrative reforms, as well as a way to make business writing, which in the Petrine era began to acquire a higher cultural status, more bookish. There were a number of linguistic factors that prompted the creators of documents to include Polish imperative models in the Russian business language. These include the emergence of new business genres, such as charters and instructions, for which there were no ready-made speech forms. These genres regulated not only the duties and prohibitions of subordinates, but also the permitted actions, which required corresponding imperative models. Unlike the prePetrine business writing, where the leading type of imperativeness was the infinitive sentence, new imperative models relied mainly on a two-part sentence and thus in the documents they signaled the beginning of a change in syntactic structures used to express prescription, permission, and prohibition. The Polish imperative models could be borrowed directly from Polish, but more often they came through Western Russian speech. The article traces the further history of borrowed imperative models, some of which can be met in the modern Russian business speech.
Combined sonographic optic nerve sheath diameter and cerebral oximeter for predicting neurological outcome after cardiac arrest
Authors: Yazar Mehmet Akif , Kozanhan Betul , Tire Yasin , Sekmenli Nevin , Yazar Guzide , Sevim Murat
Published: November 2024

Cardiac arrest (CA) remains a critical global health issue with high rates of mortality and morbidity. Accurate prediction of neurological outcomes in post-CA patients is essential for optimizing management strategies. Optic nerve sheath diameter (ONSD) and near-infrared spectroscopy (NIRS) are emerging as promising tools for evaluating brain oxygenation and intracranial pressure. However, the potential benefits of combining these methods for improved prognostic accuracy have not been thoroughly explored. This study investigates whether the combined use of ultrasonographic ONSD and NIRS measurements enhances the prediction of neurological outcomes after CA. In this prospective study, ONSD measurements were obtained three times at 24-hour intervals, while regional hemoglobin oxygen saturation (rSO2) using NIRS was recorded twice. Neurological outcomes were assessed using the Full Outline of Unresponsiveness (FOUR) and Cerebral Performance Categories (CPC) scores for both early and late evaluations. Results indicated that 47.5% of patients had poor outcomes and 52.5% had good outcomes based on the FOUR score, while 65% had poor outcomes and 35% had good outcomes according to the CPC score. The combination of ONSD and NIRS measurements showed superior prognostic performance compared to either method alone. While standalone NIRS measurements taken after 24 hours exhibited limited predictive value, combining ONSD and NIRS provided a more reliable approach for neurological assessment in the short term following CA. This integrated method may improve prognostic accuracy and support better clinical decision-making.
Stabilization of the Ba4Y3F17 phase in the NaF-BaF2-YF3 system
Authors: Fedorov Pavel P. , Volchek Angelina A. , Voronov Valery V. , Alexandrov Alexander A. , Kuznetsov Sergey V.
Published: November 2024

The paper describes the study of the phase formation in the NaF-BaF2-YF3 system. It involved solid-phase sintering of the components in a fluorinating atmosphere at 750 °C for two weeks and quenching them in liquid nitrogen.
The prepared samples were placed in nickel capillaries, which, together with barium hydrofluoride, BaF2·HF, were placed in copper containers. The containers were sealed by argon arc welding. The fluorinating atmosphere was created by pyrolysis of barium hydrofluoride, BaF2·HF. X-ray powder diffraction was carried out using a Bruker D8 Advanced diffractometer (CuKa‑radiation). TOPAS, DifWin, and Powder 2.0 software were used to process X-ray diffraction patterns.
Sodium fluoride is a good sintering additive, its introduction in the amount of 5 mol % NaF was enough to synthesize sintered mass with clear X-ray diffraction patterns. The experiment revealed the formation of a solid solution based on the Ba4Y3F17 compound with a trigonally distorted fluorite structure (space group R-3) with a content of up to ~ 20 mol % of NaF. The parameters of the trigonal cell were related to the parameter а0 of the fluorite subcell by the ratios а ~ √7/2а0 and с ~2√3а0. The general formula for the resulting solid solution is Ba1-x-yYxNayF2+x-y. The introduction of sodium fluoride reduced the parameters of the trigonal lattice and was accompanied by the formation of anion vacancies. Structure stabilizationexpressed in the expansion of the homogeneity region of the phase based on Ba4Y3F17 seems to be associated with the disappearance of interstitial fluorine ions surrounded by anions in the Ba4Y3F17 structure, both in the cuboctahedral cavity of the Y6F36 clusters and in the centre of the F8 cubes.
The corresponding solid solution can be used to create new photonics materials. The NaF-BaF2-YF3 system is similar to the previously studied NaF-BaF2-GdF3 system
Synthesis and sensory properties of tungsten (VI) oxide-based nanomaterials
Authors: Shaposhnik Alexey V. , Zviagin Alexey A. , Ryabtsev Stanislav V. , Dyakonova Olga V. , Vysotskaya Elena A.
Published: November 2024

The purpose of this work was to develop a methodology for the synthesis of WO3-based nano-scale materials, to provide their characterization, and to study their sensory properties.
The nanopowder was made by slowly adding nitric acid to an aqueous solution of ammonium paratungstate,(NH4)10W21O41·xH2O, followed by centrifugation, drying, and calcination. The size of tungsten trioxide grains, which was 10-20 nm, was determined by transmission electron microscopy. According to X-ray phase analysis, the powder, which was calcined at a temperature of 500 °C, mainly consisted of a triclinic phase. Subsequently, diammine palladium (II) nitrate and terpeniol were added to the WO3 nanopowder to form a paste. The resulting paste was applied to a special dielectric substrate and calcined to a temperature of 750 °C. As a result, a fragile tungsten trioxide-based gel formed. The mass fraction of palladium in the fragile gel was 3%. The sensory properties of the obtained gas-sensitive material were studied under stationary (300 °C) and non-stationary temperature conditions (quick heating to 450 °C and slow cooling to 100 °C).
A sharp increase in the sensitivity of a tungsten trioxide-based sensor was observed under non-stationary temperature conditions which depended on the composition of the gas-sensitive layer
Influence of the particle size of sulfonated cation exchange resin on the physicochemical properties and surface morphology of MK-40 heterogeneous membranes
Authors: Dobryden Svetlana V. , Akberova Elmara M. , Mamonov Danila R. , Bespalova Yana R. , Vasil´eva Vera I.
Published: November 2024

The article presents the results of the study of the physicochemical properties and surface morphology of MK-40 heterogeneous membranes with a given particle size of sulfonated cation exchange resin within the ranges of < 20 μm, 32–40 μm and 56–71 μm with the resin-polyethylene ratio of 65:35. The experimental membranes were manufactured at LLC Innovative Enterprise Shchekinoazot (Russia). A comparative analysis of the characteristics of the membranes showed that their main physicochemical properties change in accordance with the changes in surface parameters. With an increase in the particle size of the ion exchange resin, the moisture content and the thickness of the membranes decreased together with the surface macroporosity. What is more, the exchange capacity of the membranes did not depend on the particle sizeof the ion exchange resin.
Quantitative analysis of SEM images of swollen membranes revealed a number of peculiarities of their surface morphology. First, it was established that membranes with a size of resin particles within the range of 56-71 μm had small in-exchangers with a radius of R < 10 μm and no large (R > 20 μm) ion-exchangers. Secondly, it was found that the fraction of the ion exchanger and the weighted average radius of the ion exchange resin particles decreased by 14% and 15% respectively with an increase in the preset dimensions of the ion exchanger. Thirdly, with an increase in the size of the resin particles, the surface macroporosity decreased by 7%, while the size of the macropores increased by more than 20%. To explain therevealed peculiarities of the surface morphology of MK-40 heterogeneous membranes with different particle sizes of sulfonated cation exchange resin, it is necessary to study the structure of their internal phase.
1/f2 noise as a precursor of structural reconstructions near the melting point of crystalline materials with different types of chemical bonds
Authors: Mashkina Ekaterina S.
Published: November 2024

Transition phenomena near the melting point (premelting effect) are fundamental processes occurring in materials with different types of chemical bonding. At T ≥ 0.8Tm, there is a fluctuating heat release. The analysis of fluctuation processes allows obtaining information about dynamic reconstructions in various subsystems and interconnections between them within the system. The purpose of this work was to study the spectral characteristics of heat fluctuations in stationary modes of premelting materials with ionic, covalent, and metallic chemical bonds (KCl, Ge, Cu, and Sb) and to determine the type of the fluctuation process using the Hurst parameter.
The spectral characteristics of heat fluctuations in stationary modes of pre-melting KCl, Ge, Cu, and Sb at T* ~ 0.9Tm were determined by wavelet analysis. This method allows analyzing the behavior of complex systems at critical points in order to identify certain correlations and development trends in them.
The study showed that in the premelting region, the frequency spectrum of heat fluctuations was characteristic of 1/f2 noise or nonlinear Brownian noise, which is a precursor of structural reconstructions during phase transitions. The type of fluctuation processes in the premelting region of KCl, Ge, Cu, and Sb was determined using the Hurst parameter (H). It was shown that in stationary modes of premelting H > 0.5. Consequently, the previous trend of the process dynamics was very likely to develop in the same direction. However, with a decrease in the energy of the chemical bond H Æ 0.5, which indicated a decrease in the stability of the system and a likely change in the development trend for the structural reconstructions inthe premelting transition region.
Thus, near the melting point, there are unstable dynamic states, which are precursors to structural changes in the system, which have certain developmental trends. This should be taken into account when calculating the stability and reliability of materials and systems
Probing molecular interactions, electronic properties, and reactivity of monoamine neurotransmitters in different protonation states via quantum chemical investigation
Authors: Azeez Yousif Hussein , Othman Khdir Ahmed , Omer Rebaz Anwar , Qader Aryan Fathulla
Published: November 2024

Amphetamine, dopamine, norepinephrine, serotonin, and tryptamine are a group of monoamine neurotransmitters that regulate diverse brain functions. This work examined these compounds’ neutral, protonated, and deprotonated, structural, energetic, and optical properties using quantum chemistry methods. Noncovalent interactions (NCI) and reduced density gradient (RDG) investigations revealed weak intermolecular forces and electron density distribution. The RDG values were observed to span from 0.12 to 0.43, indicating varying degrees of repulsion or attraction. The hydrogen bonding patterns and their strength and nature were also investigated using the Atoms in Molecules (AIM) and B3LYP methods. Thequantification was done using —^2 r(r), H(r), and energy density values, which showed a variation from -0.014 to 0.026 Hartree/Bohr3, reflecting covalent or electrostatic interactions. A comparison was made between the compounds based on their physical and chemical attributes, such as polar surface area (ranging from 41.81 to 86.71 Å²), rotatable bonds (which were identical), and proton affinity (a measure of stability). Lewis structures and natural bond orbital (NBO) analysis showed resonance and electron delocalization. The study also examined their molecular orbitals (MOs) and found that protonation and deprotonation could significantly change their electronic characteristics, including the energies of the highest occupied(HOMO) and lowest unoccupied (LUMO), the energy gap, and the shape and size of their lobes. The nonlinear optical properties were also assessed, affected by polarizability and hyperpolarizability indices, ranging from 2.267 a.u. (Dopamine) to 7.891 a.u. (Protonated Serotonin). These properties pointed to the applications of these compounds in optical devices
The effect of the chemical compositions of palladium alloys on their hydrogen permeability
Authors: Morozova Natalia B. , Dontsov Alexey I. , Pogorelova Daria A. , Dubovitskaya Tatyana V.
Published: November 2024

The purpose of the article is to identify the effect of the alloying element in palladium alloys on their parameters of hydrogen permeability.
Cyclic voltammetry and anodic-cathodic chronoamperometry were used to study the electrochemical behavior of coldrolled alloys of Pd-5Pb, Pd-6Ru, and Pd-7Y systems (wt. %) in the processes of atomic hydrogen injection and extraction in a deaerated aqueous solution of 0.1 M H2SO4.
The study identified the role of lead, ruthenium, and yttrium in the processes of atomic hydrogen injection and ionization. Voltammetry and chronoamperometry data indicate a higher ionization rate for the Pd-6Ru alloy. The parameters of hydrogen permeability calculated from the cathodic current drops show that the hydrogen permeability of alloys varies in the series: Pd-6Ru > Pd-7Y > Pd-5Pb. The effective constant of the injection rate coincides for all alloys within the measurement error, whereas the effective constant of the extraction rate of atomic hydrogen is higher for Pd–5Pb. The marginal solubility of ruthenium in the Pd-6Ru alloy contributes to the passivation of grain boundaries in the alloy with excess ruthenium. As a result, there is preferential movement of hydrogen solely along the grain body. This results in higher hydrogen permeability