bluuebunny/crossref_metadata_2025 huggingface dataset:
The effect of sectional football classes on the physical fitness of schoolchildren aged 11-12
Authors:   Vinnytsia State Pedagogical University named after Mykhailo Kotsyubynskyi, Sulima A.S. , Nasalskyi M.D. ,   Vinnytsia State Pedagogical University named after Mykhailo Kotsyubynskyi, Fedorchuk V.I. ,   Vinnytsia State Pedagogical University named after Mykhailo Kotsyubynskyi
Published: October 2023

The main task of a modern school is the physical development and strengthening of the health of schoolchildren. However, the results of many studies indicate that, due to the intensification of the educational process and limited motor activity, the level of physical fitness of middle school students is insufficient. Scientists advise to increase the level of physical fitness to use additional sectional classes in various sports, in particular football. Therefore, the purpose of our work is to study the impact of sectional football classes on the level of physical fitness of schoolchildren aged 11-12. Material and methods: 30 boys aged 11-12 took part in the study. All subjects attended the soccer section 6 days a week. Standard tests were used to assess the physical fitness of schoolchildren. Results: The study lasted 16 weeks. During the period of the study, boys aged 11-12 years increased the results of the following tests: running 15 m from a standing position (by 2.55%, p<0.05), running 30 m (by 5.56%, p<0.05 ) and 60 m (by 5.71%, p<0.05) from a high start, long jumps (by 3.82%, p<0.05) and up (by 2.61%, p<0, 05) from standing, as well as triple (by 2.54%, p<0.05) and 5-fold (by 3.07%, p<0.05) jumps. Conclusions: The results of our research indicate that sectional football classes contribute to increasing the level of physical fitness of schoolchildren aged 11-12.
A New Record and а Taxonomic Review with Checklist of Wolf Spiders (Araneae, Lycosidae) from Iraq
Authors: Ali Al-Yacoub G. A. A. , Najim S. A.
Published: October 2023

The material in the present study was collected from two agricultural regions in Thi-Qar and Basrah Provinces, southern Iraq. Pardosa roscai (Roewer, 1951) was recorded for the first time from Thi Qar Province in Iraq. А list of wolf spiders (Araneae: Lycosidae) from Iraq is presented. In addition, a map of the areas, with a taxonomic review and confirmation of five species of wolf spiders is given, with photographs of palp and epigyne of several species, which were not published in previous studies.
Meiofaunal Biodiversity in a Marine Protected Area: a Case Study in the Rocky and Sedimentary Shores of the Snake Island (North-Western Black Sea)
Authors: Uzun O. Ye. , Kvach Y. V.
Published: October 2023

This study provided a preliminary comparative analysis of meiobenthic assemblages in different habitats of the Snake Island Marine Protected Area (MPA). Meiobenthos was studied in three habitats: Exposed Black Sea upper infralittoral rock with Corallinales turf (MB142), Mytilid dominated exposed Black Sea upper infralittoral rock with foliose algae (no Fucales) (MB143) and Black Sea infralittoral sand and muddy sand without macroalgae (MB542). A total of 10 higher meiobenthos taxa were recorded in the different habitats: 5 permanent groups (Platyhelminthes, Nematoda, Harpacticoida (Copepoda), Ostracoda, Halacaridae) and 5 temporary groups (Oligochaeta, Polychaeta, Bivalvia, Gastropoda, Cyrripedia). The preliminary study of meiobenthos in the habitats of the Snake Island MPA showed that habitat MB143 was more favourable for meiobenthos, with the highest mean density and biomass (190655 ± 23004 ind.-m-2 and 3170.90 ± 412.15 mg-m-2, respectively). The comparative nMDS and cluster analyses based on the density of meiobenthos taxa in the Snake Island MPA showed that the meiofauna of both MB142 and MB143 differed significantly from the MB542 habitat, with Bivalvia and Ostracoda making the largest percentage contribution to these differences. The meiobenthos assemblages in the different habitats of the Snake Island MPA were similar to the other regions of the Black Sea with some unique features (e.g. relatively lower total meiobenthos density, high percentage of ostracodes on the algal substrate, etc.). Further studies on the characteristics of meiobenthos taxa assemblages in other Black Sea MPAs could lead to the estimation of meiobenthos assemblage patterns and their possible use in biomonitoring.
Assessing the Abundance of Caucasian Salamander, Mertensiella caucasica (Caudata, Salamandridae), with N-mixture Model in Northeastern Anatolia
Authors: Yakın B. Y. , Arslan D. , Çiçek K. , Tok C. V.
Published: October 2023

The endangered Caucasian salamander, Mertensiella caucasica (Waga, 1876), is endemic to the western Lesser Caucasus. Here, we used N-mixed models to analyse repeated count data of Caucasian salamanders from the eastern Black Sea region of Turkey. We estimated a mean detection probability of 0.29, a population size of 21 individuals, and a range of 9 to 36 individuals per 20 × 10 m plot. Our results provide preliminary data on the population status of the Caucasian salamander in northeastern Anatolia. These results would contribute to the effective management and conservation of the species.
An Overview of the Ecological Values of Soumar Wetland on Waterbirds Diversity
Authors: Laroug S. , Houhamdi M. , Bara M.
Published: October 2023

The diversity and richness of the waterbird community is the main criterion used to classify wetlands as Ramsar and/or IBA sites. This study was carried out in the Soumar wetland (Setif province — northeastукт Algeria) from September 2019 to September 2020. Our aim was to study the ecological values of this wetland and the status of waterbirds. We recorded a total of 23 species belonging to 11 families. June was the most diverse month of the year (Shannon–Weaver and Simpson indices reached the maximum). October was the most equitable month (equitability reached maximum). We noted four key species according to IUCN status: Ferruginous Duck, Aythya nyroca (Near Threatened), Common, Pochard Aythya ferina (Vulnerable), White-headed, Duck Oxyura leucocephala (Endangered) and Northern Lapwing, Vanellus vanellus (Near Threatened). The main phenological status of waterbirds in Soumar was breeding or sedentary (26 % and 21 % respectively). The geographical location of the Soumar wetland and its diversity profile require a local management plan (depending on the waterbirds and their conservation), allowing the Soumar wetland to join the Ramsar network.
Untapped Potential of Manufacturing MSEs in Bali Amidst the Covid-19 Pandemic
Authors: Candrawati Ida Ayu , Purwanti Putu Ayu Pramitha
Published: October 2023

The macro health impact of the COVID-19 pandemic that resulted in an economic slump in Bali exposed the need for economic development outside the tourism sector. Manufacturing Micro and Small Enterprises (MSEs) is one sector that contributes significantly to the economy, export value, and employment, particularly during moments when the tourism sector is down. This study aims to determine the performance of manufacturing MSEs during 2018-2021 using Cobb-Douglas stochastic frontier production function analysis. The Technical Inefficiency (TE) value of manufacturing MSEs in Bali was 22.24% over 2018-2021. The impact of COVID-19 on each ISIC and business location has a varied impact on the production value of MSEs Manufacturing. The gender of the business owner, financial service, age of workers, and source of raw materials are inefficiency variables that significantly affect production value. However, the training received by manufacturing MSEs had no significant effect. The findings from this study can be used as a basis for government policy in further developing the untapped potential of manufacturing MSEs in Bali regarding impacts upon Bali's tourism sector during the pandemic.JEL Classification: D24, E23, J16, L86, O14 How to Cite:Candrawati, I.A., & Purwanti, P.A.P. (2023). Untapped Potential of Manufacturing MSEs in Bali Amidst the Covid-19 Pandemic. Signifikan: Jurnal Ilmu Ekonomi, 12(2), 383-398. https://doi.org/10.15408/sjie. v12i2.32389.
Optimizing Hajj Fund Management through Strategic Asset Allocation in Islamic Finance Instrument
Authors: Masruroh Aini , Rodoni Ahmad , Pontjowinoto Iwan P
Published: October 2023

The management of Hajj funds must be done effectively using a rigorous standardized risk management approach. This study aims to create a Hajj fund management model using Islamic financial instruments through the optimal portfolio method and strategic asset allocation. The model was built using historical data from 2010–2022, involving Islamic deposits, government sukuk (SBSN), corporate sukuk, and Islamic stocks, which were analyzed with the Markowitz portfolio equation in Excel Solver. The result showed that the optimal portfolio yields an 8.50% expected return with a 4.00% risk; strategic asset allocation produces an 8.25% return with a 2.99% risk. The policy implication of this research is the need to review the initial deposit of pilgrims and explore alternative investments to bridge the gap between the actual cost of Hajj and pilgrims' payments while improving returns.JEL Classification: M31, M37, L92 How to Cite:Masruroh, A., Rodoni, A., & Pontjowinoto, I. P. (2023). Optimizing Hajj Fund Management through Islamic Finance Instrument. Signifikan: Jurnal Ilmu Ekonomi, 12(2), 287-306. https://doi.org/10.15408/sjie.v12i2.34403.
Risk factors for Recurrent Clostridioides Difficile Infection in Children
Authors: Lee Philip , Nemati Koorosh , Silver Ellen J. , Cacace Jessica , Goldman David L.
Published: October 2023

OBJECTIVE

The aims of this study were to determine the epidemiologic and treatment factors associated with recurrent C. difficile infection in children.

METHODS

We conducted a 13-year retrospective review of pediatric C. difficile infections at our institution focusing on the epidemiologic, clinical, and treatment factors associated with recurrent disease. Repeat episodes occurring between 4 weeks and 2 months after initial infection were defined as early recurrences, whereas repeat episodes between 2 and 12 months after initial infection were defined as late recurrences.

RESULTS

We identified 303 children with C. difficile infection. Recurrent infections were limited to children with chronic conditions, affecting 27.4% (68 of 248) of this cohort. Early and late recurrences occurred in 36.8 and 63.2% of children, respectively. Among children with a chronic condition, female sex and initial use of metronidazole (as opposed to vancomycin) were associated with recurrent disease in bivariate and multivariate analyses. Overall, there was a high treatment failure rate (34 of 102, 33.3%) once children had developed recurrent disease.

CONCLUSIONS

Findings from this study demonstrate the importance of underlying chronic conditions in the development of recurrent C. difficile disease and the shortcomings of current treatment options for recurrent cases. Additionally, our findings indicate that initial treatment selection may impact the likelihood of future disease, with metronidazole usage being associated with higher recurrence rates than vancomycin. These findings highlight the need for additional studies to better understand the implications of C. difficile treatment strategies.
Delineamentos Experimentais em Pesquisas Com Seres Humanos: Estudos de Intervenção
Authors: Schunke Gomes Maximiliano , Jung Franciscatto Gisele , Kochenborger Scarparo Roberta
Published: October 2023

Highlights * Nos estudos de intervenção, são aplicadas ações sobre os participantes de pesquisa, e os procedimentos metodológicos visam reduzir as interferências de fatores externos sobre os desfechos estudados.
* Estudos de intervenção são direcionados a questões de pesquisa restritas e ao fortalecimento de inferências causais e de evidências científicas sugeridas em estudos pré-clínicos e observacionais.
* Ensaios clínicos randomizados são estudos controlados em que a alocação dos participantes nos grupos é feita de forma aleatória.
Sua capacidade de gerar evidência científica confiável os caracteriza como o padrão-ouro para avaliar novas intervenções em saúde.
* Ensaios clínicos não randomizados e estudos do tipo “antes e depois” são delineamentos que não contemplam a distribuição aleatória dos participantes nos grupos de pesquisa, sendo indicados quando
um ensaio clínico randomizado não é factível, por questões éticas e/ou práticas.
Elaboração de projetos, trabalhos de conclusão, dissertações e teses
Authors: Paula Aquistapase Dagnino Ana , Carolina Carvalho Volkweis Maria , Martha Campos Maria
Published: October 2023

Highlights * A escrita científica tem suas particularidades, que precisam ser consideradas. * Um bom texto científico deve ser claro e objetivo. * Normas bibliográficas e formatação adequada devem ser respeitadas. * A qualidade final depende de um trabalho criterioso de todos os envolvidos. * Um trabalho bem conduzido servirá de modelo para futuros estudantes.
Long COVID in children: frequency and diagnostic challenges
Authors:   I. Horbachevsky Ternopil National Medical University, Ukraine, Volianska L.A. , Burbela E.I. ,   I. Horbachevsky Ternopil National Medical University, Ukraine, Perestiuk V.O. ,   I. Horbachevsky Ternopil National Medical University, Ukraine, Kosovska T.M. ,   I. Horbachevsky Ternopil National Medical University, Ukraine, Boyarchuk O.R. ,   I. Horbachevsky Ternopil National Medical University, Ukraine
Published: October 2023

Purpose - to analyze the prevalence of symptoms of long COVID-19 in the pediatric population and the methods of their diagnosis. Electronic search of scientific research using known databases from PubMed, SCOPUS, ResearchGate, Wiley Online Library and Google Scholar from 2019 to February 2023. The keywords for this review: long COVID, post COVID, COVID-19, pediatrics, children, adolescents, post-acute sequelae of SARS‐CoV‐2 infection (PASC). Exclusion criteria were: duplicated, dedicated exclusively to adults, analyzed only acute COVID-19. In the analysis were included research from the post-Covid period in children and adolescents, which contained the results of the assessment of their state of health and displayed certain clinical manifestations that remained after the end of the acute infection within 4-12 weeks. Optimistic forecasts regarding the course of SARS-CoV-2 infection in the child population at the beginning of the pandemic quite quickly passed into the stage of uncertainty in forecasts of the course of the post-Covid period and the consequences of the transferred disease. Most children infected with COVID-19 recover, but some of them have persistent symptoms after an infection. The true prevalence of “long-term COVID” is under investigation study. Reports on the range of its manifestations are very diverse and differ in conclusions about the intensity of their impact on the quality of children’s life. Hence, there is an obvious need for long-term clinical observations with a mandatory comparison with the data of control groups appropriate age. Because this category of convalescents will need of a multidisciplinary approach in monitoring them, and therefore they will bear a significant burden on the health care system. No conflict of interests was declared by the authors.
Reproductive health of refugees: barriers to accessing healthcare systems in host countries
Authors:   SI Institute of Pediatrics, Obstetrics and Gynecology named after academician O.M. Lukyanova of the NAMS of Ukraine, Kyiv, Podolsky Vl.V. , Podolsky V.V. ,   SI Institute of Pediatrics, Obstetrics and Gynecology named after academician O.M. Lukyanova of the NAMS of Ukraine, Kyiv, Medvedovska N.V. ,   National Academy of Medical Sciences of Ukraine, Kyiv
Published: October 2023

Refugees around the world face numerous challenges when it comes to accessing healthcare services, particularly in the area of reproductive health. This narrative review aims to explore the barriers that refugees encounter when trying to access healthcare systems in their host countries. These barriers include language and cultural differences, lack of knowledge about the healthcare system, limited access to transportation, financial constraints, and stigma. Comprehensive healthcare services, including healthcare access, nutrition, and mental health support, are crucial to prevent and manage chronic diseases and improve health outcomes for refugees, particularly those with diabetes who may face restricted availability of medications and monitoring devices. It is essential to ensure refugees diagnosed with diabetes have sufficient access to insulin supplies and equipment to administer it securely. We also highlight the impact of these barriers on the reproductive health of refugees, including inadequate prenatal care, lack of access to contraception and family planning services, and increased risk of sexually transmitted infections. The findings of this review underscore the urgent need for policymakers and healthcare providers to address the unique challenges that refugees face when accessing reproductive healthcare. Efforts must be made to improve access to information, increase cultural competency among healthcare providers, and address financial and transportation barriers. By addressing these challenges, we can ensure that refugees have the necessary support and resources to maintain their reproductive health and well-being. No conflict of interests was declared by the authors.
Analgesia in childbirth - comparison and analysis of the classical technique of epidural analgesia and modified with puncture of the dura mater
Authors:   Shupyk National Healthcare University of Ukraine, Kyiv, Sulimenko Ye.M. ,   Leleka Maternity Hospital LLC, Kyiv, Ukraine
Published: October 2023

Epidural analgesia (EA), most commonly used for labor analgesia, is an effective and relatively safe technique, but may be associated with slow onset, inadequate block. The use of Dural puncture epidural (DPE) is designed to find a balance between improving the quality of analgesia and reducing the frequency of side effects. Purpose - to compare two methods of labor analgesia. Materials and methods. All women (n=80) were divided into two groups: the Group I (n=40) used DPE, the Group II (n=40) used EA. In both groups, the same technique of epidural puncture and catheterization was used, in the Group I additionally puncture of the dura mater. Analgesia was evaluated using the visual analog pain rating scale (VAS). The quality and effectiveness of analgesia, the hemodynamics of the woman were evaluated. Complications and unwanted effects were recorded. Fetal condition: cardiotocography (CTG), umbilical cord blood lactate, pH. A statistical analysis of the obtained data was carried out. Results. The first contraction (VAS1) in the Group I were fixed on 11.43.3 min, and in the Group II on 21.57.2 min (p0.05). Monolateral block in the Group I - 4 (10%) versus 10 (25%) (p0.05). Contractions (VAS 1) after 30 min in the Group II - 7 (17.5%) versus the absence of such in the Group I. Stroke volume in the Group I decreased by 2.1% versus 1.5% in the Group II. The data for hypotension and occurrence of complications, CTG, cord blood lactate, and pH were not different by group. Conclusions. The use of the DPE technique against EA gives better results in terms of the quality and effectiveness of analgesia. The mother’s hemodynamics remained stable when using DPE. The DPE technique does not increase the frequency of complications compared to EA. There was no difference between the groups when assessing the state of the fetus according to CTG data, pH indicators and umbilical cord blood lactate. 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 author.
Peculiarities of the course of pregnancy in women with premature birth
Authors:   SHEI Uzhhorod National University, Ukraine, Lemish N.Y.
Published: October 2023

Purpose - to determine the peculiarities of the course of pregnancy and childbirth in women who had complications from the group of major obstetric syndromes, clinically manifested by premature birth (PB). Materials and methods. A retrospective clinical-statistical analysis of the course of pregnancy and childbirth of n=69 pregnant women with spontaneous PB at a gestation period of 24-36 weeks and 6 days was carried out. Depending on the period of pregnancy, they were divided into groups: the Group I - 9 pregnant women 24-26 weeks 6 days, the Group II - 28 women 28-31 weeks 6 days, the Group III - pregnant women 32-36 weeks 6 days. The Control group (CG) consisted of 56 practically healthy pregnant women with a healthy reproductive history and an uncomplicated course of this pregnancy. Statistical processing of research results was carried out using standard Microsoft Excel 5.0 and Statistica 6.0 programs. Results. Were received significant differences between the Group I and the CG (p=0.007), in the presence of signs of the threat of termination of pregnancy during the second “wave” of cytotrophoblast invasion, so the chance of giving birth in the early term is 4.2 times higher than at term. In the presence of isthmic-cervical insufficiency (ICN), the reliability of differences between the Groups I and II (p=0.0021), Groups I and III (p=0.012) is observed between the Group I and CG (p=0.00083) and the risk of very early PB is 2.6 times higher than the risk of premature, late premature - 2.2 times. Disturbances in uteroplacental blood circulation have the presence of significant differences between Groups I and II (р=0.0051). There is a direct relationship between the level of blood pressure and blood circulation in the uterine arteries. Therefore, the observed difference is not accidental: in the Group II, preeclampsia was observed significantly more often. Violation of feto-placental hemodynamics when comparing groups demonstrated the existence of statistically significant differences between the Groups I and II (p=0.048), as well as between the Group I and CG (p=0.02). In the presence of clinical signs of fetal growth retardation syndrome (GRS), there is a significant difference between the Groups I and II (р=0.033). Conclusions.The features of the course of pregnancy with premature birth include the threat of termination during the second “wave” of cytotrophoblast invasion; isthmic-cervical insufficiency, which can lead to very early premature birth; vaginal infectious-inflammatory and dysbiotic diseases. Severe forms of placental insufficiency and preeclampsia are more often an indication for termination of pregnancy at 28-33 weeks 6 days. The research was conducted according to principles of Declaration of Helsinki. Protocol of research was proved by local ethical committee, mentioned in institution’s work. A informed sonsennt was collected in order to carry out the research. No conflict of interests was declared by the author.
Quality of life as a criterion for the effectiveness of surgical treatment of genital prolapses combined with uterine leiomyoma
Authors:   Shupyk National Healthcare University of Ukraine, Kyiv, Baryshnikova O.P. , Chaika K.V. ,   Shupyk National Healthcare University of Ukraine, Kyiv, Tytarenko N.V. ,   National Pirogov Memorial Medical University, Vinnytsia, Ukraine, Vozniuk A.V. ,   National Pirogov Memorial Medical University, Vinnytsia, Ukraine, Rud V.O. ,   National Pirogov Memorial Medical University, Vinnytsia, Ukraine
Published: October 2023

Criteria for choosing the volume of surgical intervention in patients with genital prolapse combined with uterine leiomyoma have not been developed. Purpose - to evaluate quality of life after hysterectomy with and without correction of genital prolapse. Materials and methods. 120 patients were examined. In the Control (I) Group (n=40), hysterectomy was performed without correction of genital prolapse, in the other two groups - hysterectomy and correction of genital prolapse using a mesh implant by the method of pectopexy (the Group II, n=40) or lateral fixation (the Group III, n=40). The PFDI-20, PISQ and PD-QOL questionnaires were used to assess the quality of life after the operation. Statistical analysis was performed with SPSS Version 21.0. Results. Significant differences in the average number of points were registered in the Group II and Group III - 45.39±27.02 and 49.78±17.24 points respectively; p<0.001. The sexual function index also significantly increased: from 18.93±14.61 to 24.85±12.19 points in the Group II and from 17.55±10.64 to 24.30±13.92 points in the Group III (р=0.01). During the analysis 12 months post surgery, attention was drawn to reliable differences in the average estimates of the impact of manifestations of genital prolapse on the quality of life (the PD-QOL questionnaire), physical and social limitations, interpersonal relationships and emotional problems in the Group II/Group III compared to patients in the Group I (p<0.05). Conclusions. The data we obtained allow us to talk about the effectiveness of simultaneous correction of genital prolapse with hysterectomy using mesh implants. 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.
Anxiety level in overweight and obese children
Authors:   Odesa National Medical University, Ukraine, Aryayev M.L. , Selimkhanova D.S. ,   Odesa National Medical University, Ukraine, Shevchenko I.M. ,   Odesa National Medical University, Ukraine
Published: October 2023

Purpose - to evaluate personal and situational anxiety levels in overweight and obese children. Materials and methods. 153 children (72 girls and 81 boys) aged 12-17 were involved in the study at the Odesa Regional Children’s Clinical Hospital. Anthropometric indicators (weight, height, body mass index (BMI)) were assessed taking into account the sex and age of children. Based on BMI values, 3 groups were selected: 1 - children with a body weight corresponding to age and gender - 47 persons (Control); 2 - children with excessive body weight - 50 persons (Overweight); 3 - children with obesity - 56 persons (Obesity). The state of personal and situational anxiety was determined using the Spielberger-Khanin questionnaire. Statistical data analysis was carried out using packages STATISTICA 12.0, MedCalc 20.0, Microsoft EXCEL 2003. Results. In children with obesity, the most common comorbidities were biliary dyskinesia (14.28%), arterial hypertension (10.52%), skin infections 4% and obstructive sleep apnea syndrome 2%. In the studied groups of children, the level of anxiety increased in proportion to the degree of increase in body weight. Personal anxiety in children with obesity compared to control was noted at a higher level - 50.1±1.04 and 30.27±0.98, respectively (χ2=49.9, p=0.0001). Situational anxiety also increased in children with obesity, but the differences were expressed to a lesser extent - 38.94±0.74 and 33.91±0.93 (χ2=5.49, p=0.019). Conclusions. The obtained results indicate the feasibility of further study and monitoring of the psycho-emotional state and quality of life of overweight and obese children and adolescents for individual psychological support and correction of psycho-emotional disorders. 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.
Analysis of critical chemotherapy complications in children with acute leukemia and ways of their corrections
Authors:   Kharkiv National Medical University, Ukraine, Мakieieva N.І. , Gubar S.O. ,   Kharkiv National Medical University, Ukraine, Koval V.A. ,   Kharkiv National Medical University, Ukraine, Zharkova T.S. ,   Kharkiv National Medical University, Ukraine
Published: October 2023

Providing intensive care for critical conditions in pediatric hematological malignancies has its features and remains one of the most urgent tasks of pediatrics. Purpose - to assess the features of critical conditions in children with acute leukemia (AL) and to review the literature for their correction. Materials and methods. An analysis of the results of clinical, laboratory, and instrumental examination of 70 children treated in the Intensive Care Unit with AL aged from 1 month to 18 years has been carried out. Statistical analyses of data were conducted by STATISTICA 8. Results. Among the complications of cytostatic therapy, the following ones have been recorded: neutropenia (in 62 cases), agranulocytosis (16), hyperleukocytosis (1); critical thrombocytopenia (15) with the development of severe hemorrhagic syndrome (10) and hemorrhagic shock (2), disseminated intravascular coagulation syndrome (1); anemia of II-III degree (12), involvement of gastrointestinal tract in the form of stomatitis/esophagitis/gastroenterocolitis (16), hepatitis (21), pancreatitis (2), cardiopathy (2), cardiovascular failure (1), interstitional pneumonia (1), respiratory failure (6), acute renal failure (2), focal neurologic signs/seizures (2). Infectious complications included pneumonia (22), including one with acute lung destruction (5), pneumonia complicated by pleurisy (2) or pneumothorax (3), pyelonephritis (3), otitis media (3), contact peritonitis (2), meningitis (2), central vein phlebitis (4) with superior vena cava syndrome (2). The combination of pneumonia with other infectious foci was determined in 17 patients. Sepsis was diagnosed in 6 cases. Conclusions. In the examined patients there was a significant proportion of complications on the background of chemotherapy treatment of AL. The timely diagnosis and adequate correction of the complications can potentially reduce the mortality of AL. The research was conducted according to principles of Declaration of Helsinki. Protocol of research was proved by local ethical committee, mentioned in institution’s work. An informed consent was collected in order to carry out the research. No conflict of interests was declared by the authors.
Landfill Hills
Authors: Edgeworth Matt
Published: October 2023

This paper investigates a waste landscape in the Marston Vale, Bedfordshire, UK, consisting of a range of landfill hills. The hills originated as vast holes in the ground created by clay extraction, which presented suitable receptacles for the dumping of landfill waste. Although of much larger scale than evidence normally dealt with by archaeologists, these are treated here as archaeological features within an archaeological landscape. While other papers deal with important aspects of political ecology of waste landscapes, the present focus is on the upscaling of methods that is necessary to cope with such mega-scale contemporary waste landscapes, in order to make them more susceptible to archaeological analysis.
Rok liturgiczny w nauczaniu papieża Piusa XII. W 75. rocznicę ogłoszenia encykliki o liturgii „Mediator Dei”
Authors: Brzeziński Daniel
Published: October 2023

20 listopada 2022 roku minęło 75 lat od ukazania się encykliki o liturgii Mediator Dei Piusa XII (†1958). Jest ona pierwszym tej rangi dokumentem Kościoła w całości poświęconym zagadnieniom dotyczącym świętej liturgii i ruchu liturgicznego. Ze względu na doniosłą treść otrzymała miano „Magna Charta liturgistorum” (Wielkiej Karty liturgistów). W związku z jubileuszem, w artykule przypomniano zawarte w dokumencie nauczanie, zwracając uwagę na aktualność teologii roku liturgicznego. Pius XII, wytyczając kierunek współczesnej odnowy liturgicznej, swym autorytetem utorował drogę odnowionej po wiekach sakramentalnej wizji roku zbawienia, zgodnie z którą Kościół starożytny budował roczny krąg obchodów liturgicznych. Nie ma wątpliwości, że współczesna heortologia stanowi kontynuację i teologiczne rozwinięcie oraz pogłębienie koncepcji roku kościelnego przedstawionej w encyklice o liturgii Mediator Dei. Świadczą o tym oficjalne dokumenty Magisterium Kościoła, jak również najważniejsze publikacje z teologii roku liturgicznego, zarówno ukazujące się w Europie i w świecie, jak i w Polsce.
The Current Status of Weed Resistance to Herbicides and The Discovery of New Herbicides With Novel Modes of Action Necessary to Combat Them
Authors: Pallett Ken
Published: October 2023

In 2016 and after retiring from a fulltime career in Herbicide Research and Development, I wrote an article for Outlooks addressing the question ‘Can we expect new herbicides with novel modes of action in the foreseeable future?’ and I would like to use this editorial to investigate if we are any closer to answering this question which is important because of the increasing problems of weeds evolving resistance to existing herbicides. Weed management is still essential to maximise crop yields in agriculture. Yield losses of up to 40% across the major global food crops can occur without effective weed control, due to competition between the weeds and crops for nutrients and light, as well as interfering with crop harvest and quality. Herbicides are essential tools in integrated weed management (IWM) but their effectiveness is being eroded due to widespread weed resistance, in part due to overuse of the limited number of herbicide products currently available to the grower. Cultural methods for control of weeds such as, changing rotations, use of cover crops; deep ploughing; manual removal of weeds and chemical mulching are clearly part of the IWM toolbox. However, deep ploughing (and any type of physical disturbance of soil) and chemical mulching, whilst potentially effective, are not applicable throughout global crop production and also are not sustainable environmentally friendly options. Similarly, other non-chemical methods, such as electro-physical and heat treatments including high energy light, boiling water, steam, fire, flame weeding and hot foam have been sold as having potential to replace herbicides, but I question their suitability in main stream row-crop agriculture and also the environmental impact of their use, particularly if they would be regulated as herbicides and needed the extensive catalogue of ecotoxicology studies to investigate adverse effects on non-target organisms and environmental fate studies. Biological approaches are receiving increasing interest in pest management for control of diseases and insects, but these appear not to be an option for weed control.
Glutathione S-Transferase's Role in Herbicide Metabolism: Crops Vs. Weeds
Authors: Pelon Amber , Abdollahi Fatemeh , Gaines Todd A. , Dayan Franck E.
Published: October 2023

The authors briefly describe the discovery and structure of glutathione S-transferases (GST), and how these enzymes are involved in herbicide metabolism. GSTs contribute to both herbicide selectivity in crops and herbicide resistance in weeds. This review highlights examples from research on selected crops and weeds demonstrating how these enzymes can have both positive and negative impacts on the efficacy of herbicides. Glutathione S-transferases (GSTs) form a large and complex enzyme superfamily found in all organisms. Plants rely on GSTs for a range of essential functions, including primary and secondary metabolisms, stress tolerance, and cell signaling. The involvement of plant GSTs in xenobiotic detoxification was first reported in 1970 (Frear & Swanson 1970). We will survey the state of knowledge and speculate on future research that could enable us to harness the power of this enzyme superfamily to enhance herbicide selectivity and fight herbicide resistance.
A study of silver sorption from aqueous solutions by solid-phase modified poly(n-thiocarbamoyl-3-aminopropyl silsesquioxane)
Authors:   Ural Scientific Research Institute of Metrology – branch of the Federal State Unitary Enterprise ", Melnik E.A. ,   D.I.Mendeleev All-Russian Scientific Research Institute of Metrology",   Ural Federal University named after the first President of Russia B.N. Yeltsin (UrFU), Sysolyatina A. A. ,   Ural Scientific Research Institute of Metrology – branch of the Federal State Unitary Enterprise "D.I.Mendeleev All-Russian Scientific Research Institute of Metrology",   Ural Federal University named after the first President of Russia B.N. Yeltsin (UrFU), Petrova Yu. S. ,   Ural Federal University named after the first President of Russia B.N. Yeltsin (UrFU), Kholmogorova A. S. ,   Ural Federal University named after the first President of Russia B.N. Yeltsin (UrFU), Neudachina L. К. ,   Ural Federal University named after the first President of Russia B.N. Yeltsin (UrFU), Osipova V. A. ,   Ural Federal University named after the first President of Russia B.N. Yeltsin (UrFU),   I.Ya. Postovsky Institute of Organic Synthesis of the Ural Branch of the Russian Academy of Sciences, Pestov A. V. ,   Ural Federal University named after the first President of Russia B.N. Yeltsin (UrFU),   I.Ya. Postovsky Institute of Organic Synthesis of the Ural Branch of the Russian Academy of Sciences
Published: October 2023

Sorption properties of poly(3-aminopropylsilsesquioxanes) modified with thiourea groups were studied to predict the possibility of using poly(n-thiocarbamoyl-3-aminopropylsilsesquioxanes) (TCPS) in separation and concentration techniques. The sorbents were synthesized by the sol-gel method followed by solid-phase modification using ammonium thiocyanate or thiosemicarbazide as modifiers. It was established that sorbents with the highest content of thiocarbamide functional groups (modified with ammonium thiocyanate) enabled quantitative and selective recovery of Ag (I) from strongly acidic solutions. The degree of Ag (I) recovery slightly decreases at pH>5, which is associated with increasing competitive sorption of Cu (II), Ca (II), Mg (II), Mn (II) and Fe (III). The highest recovery of Ag (I) for TCPS-0.63 and TCPS-0.68 was achieved at pH ranging from 4 to 8 (degree of recovery was 55–68% (TCPS-0.63); 21–26% (TCPS-0.68 )); at the same time, there was a predominance of competitive sorption of Ca (II), Mg (II), Mn (II), and Fe (III). Based on the aforementioned, it can be concluded that the sorbents modified with ammonium thiocyanate are characterized by high concentration of attached thiocarbamide groups that make them suitable for the selective recovery of Ag (I) ions from multicomponent solutions at pH 1–2.
Calculation of average chronological values – an undeservedly neglected method of statistical data processing
Authors:   St. Petersburg State University, Institute of Chemistry, Zenkevich Igor G.
Published: October 2023

In real analytical practice involving parallel determinations there are certain objective reasons (limited measurement time, available resources, etc.) that prevent performing sufficient number of measurements required for rigorous statistical data processing. Such parameters as standard deviations are particularly unreliable for small data sets (they are usually too high in comparison with the results obtained for more representative data sets). This problem can be minimized by changing the character of data processing, i.e. calculating so-called chronological averages instead of average arithmetical values. This, however, requires ranking the data not in the order as they were measured, but in the ascending order. The essence of calculating chronological averages is that the minimum and the maximum values of the initial data set are replaced with a single number, namely their arithmetical average, which is then averaged with other data. As a result, the total number of data values decreases by one but the changes of the averages would be negligible. At the same time, the standard deviations of the modified data sets become more characteristic and approaching the standard deviations of extended data sets. Replacing the arithmetical means by chronological average values leads to sufficiently smaller distortions of the initial data sets than, for example, in the case of excluding outliers by using the well-known “3s” criterion.
Supplement to A.L. Pomerantsev's comments on I.G. Zenkevich's article «Calculation of average chronological values – an undeservedly neglected method of statistical data processing»
Authors:   St. Petersburg State University, Institute of Chemistry, Zenkevich Igor G.
Published: October 2023

Алексей Леонидович – один из известнейших специалистов России в области хемометрики и обработки данных. Это придает особую значимость его коммента­риям [1] относительно воз­можности использования сре­д­них хро­но­логических значе­ний при статистичес­кой обработке данных и тем инте­реснее об­суждение дис­кус­си­онных моментов рассматривае­мой проблемы.
XXXII Annual Meeting of the Analytical Centers Association "Analitica"
Authors:   The Institute for Certified Reference Materials, Stepanovskikh V. V.
Published: October 2023

С 24 по 28 апреля 2023 г. в пансионате ФГАУ «ОК «Клязьма» (Москва) состоялось Ежегодное собрание Ассоциации аналитических центров (ААЦ) «Аналитика».
Determination of iron (III) in environmental objects by photometric method with acetylacetone derivatives
Authors:   Baku State University, Nagiyev Kh. D. , Abiyeva A. U. ,   Baku State University, Chiragov F. M. ,   Baku State University, Gullarli U. A. ,   Baku State University
Published: October 2023

Organic reagents containing three carbonyl groups based on acetylacetone, 2,4-diacetyl-3-phenyl-5-methyl-5-hydroxyhexanone (R1), 2,4-diacetyl-3-(3'-nitrophenyl)-5-hydroxy-5-methylcyclohexanone (R2) and 3-acetyl-4,6-diphenylgensandione-2,6 (R3), were synthesized. Their absorption spectra were studied at various pH values of the medium, and the acidity constants were determined by potentiometric titration. It was found that the reagents are monobasic acids and, depending on the acidity of the medium, can be in the molecular (HR) or anionic (R-) form. Formation of iron (III) complexes with synthesized reagents in the presence of hydrophobic amines, 1,10-phenanthroline (Phen), diantipyrylmethane (DAM) and diantipyrylphenylmethane (DAPM) was studied. It was established that mixed ligand complexes with the components ratio of 1:1:1 were formed in the presence of hydrophobic amines. At the same time bathochromic shifts in the absorption spectra were observed and the maximum yield was noted in a more acidic medium compared to the corresponding single ligand complexes. The influence of the reagents concentration, time and temperature on the formation of mixed ligand complexes was studied, and the stability constants were determined by various methods. It was shown that iron (III) in the form of mixed ligand complexes, Fe(III)-R1-DAM, Fe(III)-R2-Phen and Fe(III)-R3-DAM, can be determined with high selectivity in the presence of large excess of other metal cations. The developed methods were tested on fruits – strawberries, apricots, cherries, white cherries and two varieties of apples (Golden Ahmadi and Simirenko), and natural waters – drinking water taken from a tap in the BSU laboratory and Caspian Sea water taken near the Turkan village of Baku city.
The Role of Artificial Intelligence and Texture Analysis in Interventional Radiological Treatments of Liver Masses: A Narrative Review
Authors: Triggiani Sonia , Contaldo Maria T. , Mastellone Giulia , Cè Maurizio , Ierardi Anna M. , Carrafiello Gianpaolo , Cellina Michaela
Published: October 2023

Liver lesions, including both benign and malignant tumors, pose significant challenges in interventional radiological treatment planning and prognostication. The emerging field of artificial intelligence (AI) and its integration with texture analysis techniques have shown promising potential in predicting treatment outcomes, enhancing precision, and aiding clinical decision-making. This comprehensive review aims to summarize the current state-of-the-art research on the application of AI and texture analysis in determining treatment response, recurrence rates, and overall survival outcomes for patients undergoing interventional radiological treatment for liver lesions. Furthermore, the review addresses the challenges associated with the implementation of AI and texture analysis in clinical practice, including data acquisition, standardization of imaging protocols, and model validation. Future directions and potential advancements in this field are discussed. Integration of multi-modal imaging data, incorporation of genomics and clinical data, and the development of predictive models with enhanced interpretability are proposed as potential avenues for further research. In conclusion, the application of AI and texture analysis in predicting outcomes of interventional radiological treatment for liver lesions shows great promise in augmenting clinical decision-making and improving patient care. By leveraging these technologies, clinicians can potentially enhance treatment planning, optimize intervention strategies, and ultimately improve patient outcomes in the management of liver lesions.
TWO-PHASE FLOW METERING OF MALDISTRIBUTION INSIDE A HEADER BY MEANS OF VENTURI FLOWMETER SOLELY
Authors: Lecardonnel Aude , De Servi C. , Colonna P. , Laboureur D.
Published: October 2023

In evaporators, the distribution of the liquid and vapor phases among the channels is a convoluted problem, depending on a wide range of parameters. However, maldistribution causes important losses of performance. Due to their complexity, the accurate modeling of such two-phase flows is difficult to handle. Hence, experimental studies are still of great importance to help the understanding of maldistribution behaviors inside evaporators. Most of the experimental investigations of two-phase flow distribution are measuring the liquid and vapor quantities in the channels through a phase separation process, increasing the test duration and complexity. As a consequence, the number of parameters investigated is usually limited. Therefore, a new inline instrumentation method would allow for a more complete study by simplifying the measurement process. In the present work, an isothermal air/water mixture was used as fluid. The distribution of the two phases in eight channels of 10-mm I.D. connected to a simplified header was investigated. The inlet mass flow rates considered ranged from 0 to 0.025 kg/s for the water, and from 0 to 0.022 kg/s for the air. Consequently, qualities x up to 0.7 and void fractions α up to 0.9 were reached. All the tests were carried at a pressure condition of 7 bar to reach a liquid to vapor density ratio similar to what is encountered for traditional refrigerant. Finally, to allow a continuous measurement process, the mass flow rates in each of the 10-mm I.D. channel were measured using a flowmeter calibrated on a separate line. Since no void fraction meter was coupled, a new iterative methodology, based on the Venturi pressure drops measurement solely, was developed and is proposed here. It proved to successfully predict the vapor and liquid phase flow rates in each channel.
ENERGY EFFICIENT OPERATION FOR NEXT GENERATION MASSIVE MIMO NETWORK
Authors: Ahmed Israa Hilme , Abdulkafi Ayad Atiyah
Published: October 2023

For the next generation of wireless networks, massive multiple-input, multiple-output (MIMO) is regarded as a potential technique. Base stations (BS) are provided with a relatively large number of antenna components in massive MIMO in order to increase spectral efficiency (SE) and energy efficiency (EE). Meanwhile, EE of BSs are becoming an increasingly important concern for communications
operators in order to maintain profitability and reduce the overall negative impact on the environment and economic concerns for wireless network users. In this paper, an energy-aware, load-adaptive operation approach is proposed for massive MIMO for the next generation of wireless communication systems. Energy-aware, load-adaptive network operation has been identified as a promising method for
improving the energy efficiency of telecommunication networks. Our research indicates that at optimal
sumSE, fully load-adaptive massive MIMO may greatly increase network EE by up to 8.666%,
43.317%, and 69.367% for high, medium, and low load factors, respectively, when compared to traditional
non-load-adaptive massive MIMO.