bluuebunny/crossref_metadata_2025 huggingface dataset:
Identificação, Análise e Apoio à Tomada de Decisão sobre Evasão Escolar no Contexto de um Curso de Engenharia de Computação
Authors: Oliveira Lorenzeto Braga Rafaela , Motta da Cunha Humberto , Castro Barbosa Costa Dalpra Gabriella , Augusto Mattos Mendes Luís , Soares Oliveira Luan
Published: June 2024

ABSTRACTThe school dropout rate in the IT field in Brazil was around 60.2%in 2017, according to data released by the Ministry of Education’sHigher Education Census. Considering this fact, this paper aimsto establish patterns regarding students who have abandoned theComputer Engineering course at a federal institution in Brazil, usinga predictive model. An intelligent system capable of predictingif a student will drop out or not based on his academic historywas proposed and implemented. The methodology for the systemdevelopment included four distinct phases. In the first phase, a dataextraction algorithm from academic histories was developed. Thesecond phase encompassed correlation analyses and the generationof a decision tree to identify dropout indicators, using data from 180students. Despite data limitations, the model achieved 78% accuracy.In the third and fourth phase an Application Programming Interface(API) and a system dashboard were implemented to achieve theproposed goal.
A big step for a small company: How can Fumajet scale its innovation globally?
Authors: Pacheco Henrique Fernandes , Rocha Angela da , Mello Renato Cotta de , Kogut Clarice Secches
Published: June 2024

Objective: This paper is a teaching case designed for graduate and undergraduate courses on subjects involving international business, international marketing, or international entrepreneurship. It describes how a small entrepreneurial company – Fumajet – could recognize and exploit an international opportunity, and the dilemmas its founders confronted regarding the choice of internationalization strategy and entry mode. Dilemma or problem: Faced with several potential alternatives to structure Fumajet’s international activities, the entrepreneurs had to analyze and select an international entry mode strategy to present to the recently created board of directors, following a significant infusion of capital into the company. Relevance/Originality: Grounded in real-life experiences, this case study draws from primary and secondary sources gathered over two years, presenting students with a real, practical, and relevant dilemma. By the end of this case study, students should be able to apply these learnings to real-world scenarios. The unique challenges portrayed make this case study particularly engaging and thought-provoking for students.
Continuing Medical Education Questions: June 2024
Authors: Sawas Tarek
Published: June 2024

Article Title: Role of the Intestine and Its Gut Microbiota in Metabolic Syndrome and Obesity
Simultaneous Localization and Mapping of a Mobile Robot With Stereo Camera Using ORB Features
Authors: Raoui Younès , Amraoui Mohammed
Published: June 2024

Simultaneous Localization and Mapping (SLAM) is applied to robots for accurate navigation. The stereo cameras are suitable for visual SLAM as they can give the depth of the visual landmarks and more precise estimations of the robot’s pose. In this paper, we present a survey of SLAM methods, either Bayesian or bioinspired. Then we present a new method of SLAM, which we call stereo Extended Kalman Filter, improving the matching by computing the innovation matrices from the left and the right images. The landmarks are computed from Oriented FAST and Rotated BRIEF (ORB) features for detecting salient points and their descriptors. The covariance matrices of the state and the robot’s map are reduced during the robot’s motion. Experiments are done on the raw images of the Kitti dataset.
Effective Nonlinear Predictive and CTC-PID Control of Rigid Manipulators
Authors: Tatjewski Piotr
Published: June 2024

Effective nonlinear control of manipulators with dynamically coupled arms, like those with direct drives, is the subject of the paper. The main proposal of the paper are model-based predictive control (MPC) algorithms, with nonlinear state-space models and most recent disturbance attenuation technique. This technique makes controller design and calculations simpler, avoiding necessity of dynamic modeling of disturbances or resorting to additional techniques like SMC. The core of the paper are computationally effective MPC-NPL (Nonlinear Prediction and Linearization) algorithms, where computations at every sample are divided into two parts: prediction of initial trajectories using nonlinear model, then optimization using simplified linearized model. For a comparison a known CTC-PID algorithm, which is also model-based, is considered. It is applied in standard form and also proposed in more advanced CTC-PID2dof version. For all algorithms a comprehensive comparative simulation study is performed, for a direct drive manipulator under disturbances. Additional contribution of the paper is an investigation of influence of sampling period length and computational delay time on performance of the algorithms, which is practically important when using model-based algorithms and fast sampling.
Examining the Self-Efficacy of Elementary Pre-Service Teachers in Online Science Instruction
Authors:   Center For Educational Research, Choi Yoon-Sung
Published: June 2024

Purpose: The purpose of this study was to explore the self-efficacy of elementary pre-service teachers regarding online science instruction.
Methods: A survey was conducted with 89 elementary pre-service teachers enrolled at Education University A, located in a non-metropolitan area. Among them, 3 participants agreed to additional interviews. Descriptive statistical analysis was conducted for each item, t-test were performed based on gender and major, and qualitative text (keywords) analysis was conducted for open-ended items. Interviews were conducted to elicit responses for open-ended items and were interpreted inductively through keyword analysis. The survey items were measured on a Likert scale for 8 subcategories, and one open-ended item allowed participants to freely describe their thoughts.
Results: The results interpreted that elementary pre-service teachers have relatively low self-efficacy regarding online science instruction. There were no significant differences based on gender, but there were statistically significant differences in some items based on major. Ultimately, this suggests that different approaches may be needed for online science instruction based on pre-service teachers' backgrounds. This study can be interpreted as an indicator of pre-service teachers' perceptions and readiness for online science instruction before entering the school field.
Conclusion: It emphasizes the importance of specific instructional methods and strategies for online science instruction and proposes the need for practical education.
Review of recommendations for bisphosphonate treatment interruption-discontinuation
Authors: Fominykh M. I. , Evstigneeva L. P.
Published: June 2024

Bisphosphonates are the main medications in the treatment of osteoporosis, which are effective in reducing the risk of fractures in patients with osteoporosis. It is known that after treatment with bisphosphonates, bone mineral density remains quite stable for a certain time, as well as markers of bone metabolism remain reduced, which, along with the side effects of long-term bisphosphonate therapy, determines the possibility of “Drug holidays”. At the same time, during a break in bisphosphonate treatment, the risk of fractures begins to increase, which is a reason to resume therapy.

Currently, there is no uniform worldwide data of starting a “drug holidays” on bisphosphonates. The duration of the “drug holidays” also differs in clinical recommendations from different countries. When to conduct a risk assessment of fractures during a “drug holidays”? To answer these questions, we assessed existing clinical recommendations for treatment interruption/discontinuation of bisphosphonates. A literature search was conducted using the following resources: PubMed®, the Cochrane Library, websites of major international osteoporosis associations, and other targeted Internet searches. The main search terms were “Clinical Guideline of Osteoporosis”, “Bisphosphonates”, “Drug holidays in osteoporosis”, “Discontinuation of bisphosphonates”. Тhe search was carried out using articles in Russian and English published between January 1, 2016 and September 15, 2023. 17 clinical guidelines from different countries (Russian, American, European, Asian and Australian) were found and analyzed in which was information about the break in the treatment and withdrawal of bisphosphonates.

The majority of clinical recommendations have the same opinion on the issue of starting “drug holidays”: with a moderate risk of fractures, you can take a break from treatment with tableted bisphosphonates after 5 years, after zoledronic acid — after 3 years of therapy. At high and very high risk of fractures, the duration of treatment is 10 and 6 years, respectively. The duration of “drug holidays” vary in the recommendations, but in most cases the decision-making is based not on the duration, but on the assessment of the risk of fractures with their regular reassessment, which includes previous and new low-energy fractures, the emergence of new risk factors, a decrease in BMD, the dynamics of bone markers, re-evalua­tion of FRAX®.
Long-term consequences of osteoporosis therapy with bisphosphonates
Authors: Nikitinskaya O. A.
Published: June 2024

Bisphosphonates (BPs) are medications widely used in clinical practice to treat osteoporosis (OP) and reduce fragility fractures. The extended use of antiresorptive therapy has drawn attention to two extremely rare, although severe, adverse events. Аtypical femoral fracture (AFF) and medication-related osteonecrosis of the jaw (MRONJ) are more common in patients with high cumulative doses and longer duration of therapy. The risk of AFF depends on the duration of treatment and is significantly increased among patients receiving BPs for more than 8 years. The risk may decrease and return to the initial level with discontinuation of BPs, it decreases by more than 50% during one year after the discontinuation. The risk of MRONJ is less dependent on the duration of therapy, it occurs more often in patients with cancer who are receiving higher cumulative doses of BPs. The combination of local trauma, microbial contamination and concomitant diseases induces this condition in patients with OP who are receiving BPs. BPs have demonstrated safety and effectiveness throughout the years and evidenced increased BMD and reduced fracture risks, and these benefits overweight the risks of rare adverse events.
Melisopalinologi Madu dari Temanggung
Authors: Suedy Sri Widodo Agung , Savitri Ni Putu Tasya
Published: June 2024

Melisopalinologi adalah studi terkait kandungan polen dalam madu, yang dapat menunjukkan karakteristik tumbuhan sumber pakan lebah, serta fitogeografinya sekitar sarang lebah. Penelitian ini bertujuan untuk menganalisis polen dalam madu dari lima daerah di Temanggung, guna mengetahui keanekaragaman tumbuhan pakan lebah dan karakteristik madunya. Sampel madu diambil secara purposive sampling dari 5 daerah di Temangung, kemudian dianalisis untuk identifikasi polen menggunakan teknik asetolisis. Telah teridentifikasi sebanyak 1855 butir polen yang terdiri dari 14 tipe polen, dimana 7 tipe teridentifikasi sampai tingkat famili, 2 tipe sampai tingkat genus, dan 5 tipe sampai tingkat spesies. Persentase polen tipe famili Euporbiaceae mencapai 27,33%, Ceiba petandra (20,27%), Imperata sp. (14,82%), Zea mays (14,23%), dan tipe lain dibawah 10%.  Berdasarkan dominasi polen tertentu, madu dapat dikelompokkan sebagai madu monoflora (madu dari Medari, Kentengsari dan Nglorog), biflora (madu dari Kwandungan Jurang), dan multiflora (madu dari Rejosari). Nilai indeks keanekaragaman hayati Shannon (H’), indeks dominansi, dan indeks kemerataan tumbuhan pakan lebah di Temanggung termasuk kategori sedang.  Melisopalinology is the study of pollen content in honey, which can indicate the characteristics of bee forage plants, as well as the phytogeography around beehives. This study aims to analyze the pollen in honey from five areas in Temanggung, to determine the diversity of bee forage plants and honey characteristics. Honey samples were taken by purposive sampling in 5 areas in Temangung, then analyzed for pollen identification using acetolysis techniques. A total of 1855 pollen grains consisting of 14 types of pollen were identified, of which 7 types were identified to the family level, 2 types to the genus level, and 5 types to the species level. The percentage of pollen types of the Euporbiaceae family reached 27.33%, Ceiba petandra (20.27%), Imperata sp. (14.82%), Zea mays (14.23%), and other types below 10%. Based on the dominance of certain pollen, honey can be grouped as monoflora (honey from Medari, Kentengsari and Nglorog), biflora (honey from Kwandungan Jurang), and multiflora (honey from Rejosari). The value of Shannon's biodiversity index (H'), dominance index, and evenness index of bee forage plants in Temanggung is categorized as moderate..
Mycophenolate Mofetil and Cyclophosphamide Treatments Suppress Inflammation Intensity in an Experimental Model of Autoimmune Uveitis
Authors: Klímová Aneta , Seidler Štangová P. , Heissigerová J. , Svozílková P. , Kučera T.
Published: June 2024

In human, autoimmune uveitis is a leading cause of visual disability and ranks with diabetic retinopathy as a major source of blind registrations in developed countries. Since most cases of non-infectious uveitis are considered to be autoimmune or at least immune-mediated, the management of such patients has rested on appropriate immunosuppression. Some patients, however, despite maximal immunotherapy, fail to respond or are seriously intolerant of the drug therapies. Since its establishment 20 years ago, the model of experimental autoimmune uveoretinitis has served as a useful template for novel therapeutic approaches. The aim of our study was to compare the efficacy of mycophenolate mofetil and cyclophosphamide and golimumab treatment in the mouse model of experimental autoimmune uveitis. The intensity of intraocular inflammation was evaluated histologically in the treatment and control groups. Experimental autoimmune uveitis has been induced in mouse strain C57BL/6 by subcutaneous application of interphotoreceptor retinoid binding protein in complete Freund’s adjuvant and pertussis toxin. The treatment was commenced on the day of uveitis induction. Cyclophosphamide was applied intraperitoneally in a single dose (100 mg/kg), mycophenolate mofetil intraperitoneally daily (30 mg/kg or 50 mg/kg), golimumab subcutaneously weekly (70 mg/kg). Sham intraperitoneal injection of a placebo (aqua pro injectione) and untreated mice with experimental autoimmune uveitis served as controls. The results show statistically significant suppression of experimental uveitis both with mycophenolate mofetil and with cyclophosphamide, and thus support its use in human medicine.
Lipoprotein Lipase Deficiency: Clinical, Biochemical and Molecular Characteristics in Three Patients with Novel Mutations in the LPL Gene
Authors: Kolářová H. , Tesařová M. , Švecová Š. , Stránecký V. , Přistoupilová A. , Zima T. , Uhrová J. , Volgina S. Y. , Zeman J. , Honzík Tomáš
Published: June 2024

Lipoprotein lipase (LPL) deficiency, caused by mutations in the LPL gene, is a rare autosomal recessive disorder manifesting in early childhood with recurrent abdominal pain, hepatosplenomegaly, acute pancreatitis, lipaemia retinalis and eruptive xanthomas. Typical laboratory findings are lactescent serum, extreme hypertriglyceridaemia and hypercholesterolaemia. The diagnostics is based on postheparin serum LPL assay and DNA analyses of the LPL gene. We report clinical, biochemical and molecular data of three children with LPL deficiency. One child manifested since the first week of life with recurrent abdominal pain (Patient 1), the second with abdominal distension and hepatosplenomegaly since the second month of life (Patient 3) and patient 2, asymptomatic younger brother of patient 1, was diagnosed in the first week of life. Lipaemia retinalis and splenomegaly were present in two symptomatic children, hepatomegaly in patient 3 and acute pancreatitis in patient 1. All children had lactescent serum, profound hypertriglyceridaemia (124 ± 25 mmol/l; controls < 2.2), hypercholesterolaemia (22.8 ± 7.3 mmol/l, controls < 4.2) and their LPL immunoreactive mass in serum did not increase after heparin injection. Molecular analyses revealed that both siblings are homozygous for novel mutation c.476C > G in the LPL gene changing the conserved amino acid of the catalytic centre. The third patient is a compound heterozygote for mutations c.604G>A and c.698A>G in the LPL gene, both affecting highly conserved amino acids. We conclude that LPL deficiency must be considered in neonates and young infants with abdominal pain and hypertriglyceridaemia because early treatment might prevent development of life-threatening acute pancreatitis.
GREEN EXTRACTION OF CAROTENOIDS FROM LEMON PEELS
Authors: Meral Hilal , Demirdöven Aslihan
Published: June 2024

Nowadays, there is a growing interest in fully utilizing agro-industrial wastes, with carotenoids gaining attention as valuable coloring agents. One of the potential sources for carotenoid extraction is lemon peel. The purpose of this study was to determine optimal extraction techniques for extracting as much carotenoids as possible from lemon peel. In this context, a comparison was conducted among extracts obtained via conventional, ultrasound-assisted (UAE), and ultrasound-assisted enzymatic (UAEE) extraction methods. The highest carotenoid content (0.792±0.01 mg/L) was achieved with UAEE, while the lowest (0.493±0.01 mg/L) was obtained conventionally. UAEE exhibited the highest antioxidant activity values among three methods: 753.80±5.79 mg TE/L (ABTS), 624.64±10.52 mg TE/L (DPPH), and 186.64±1.66 μmol TE/L (FRAP). In conclusion, UAEE showed promise in extracting carotenoids from lemon peel. Thus, by carotenoid extraction using green technology from waste lemon peels, with higher added value, richer in terms of phenolic composition and antioxidant properties, has been obtained.
Bridging the Gap Between Metamemory and Attitude Formation: Judgments of Learning Predict Evaluative Conditioning Effects Above and Beyond Memory
Authors: Ingendahl Moritz , Ingendahl Franziska , Woitzel Johanna , Alves Hans , Undorf Monika
Published: June 2024

Evaluative Conditioning (EC), the change in liking towards a neutral stimulus due to its pairing with a positive/negative unconditioned stimulus, is a central effect in attitude formation. Current research emphasizes the role of explicit memory in EC. However, human memory is no passive information-storage device, but people actively monitor and control their own memory processes. In the present research, we examined whether people can monitor their memory processes in attitude formation via EC and let participants predict whether they will remember the stimulus pairings in the future (judgments of learning, JOLs). In seven preregistered experiments, judgments of learning predicted actual memory of stimulus pairings above chance, showing that people can indeed monitor their memory in EC. Higher JOLs were also associated with stronger EC effects. Surprisingly, actual memory explained this effect only to a small degree. Following a Brunswikian perspective, we identified several variables contributing to the correlation between JOLs and the EC effect, such as the extremity of the unconditioned stimuli, the fit between conditioned and unconditioned stimuli, and the feeling of processing ease, which all correlated with higher JOLs and stronger EC effects. Further experiments showed the robustness of these effects across different boundary conditions, such as whether judgments and memory tests target the valence or the identity of the stimuli. Our results attest to the role of metamemory in attitude formation via EC, whereby expecting that one will remember a stimulus predicts actual memory but also the size of the EC effect over and above actual memory. By integrating two previously unrelated research areas, our studies provide important theoretical insights into both attitude formation and metamemory.
Atrazine disorganises laminin formation and reduces cell numbers in the tammar testis during early differentiation
Authors: Chen Yu , Lay Jaiden , Shaw Geoffrey , Tarulli Gerard A , Renfree Marilyn B
Published: June 2024

In brief

Atrazine, like oestrogen, disorganises laminin formation and reduces the number of germ cells and Sertoli cells in the developing testes of the tammar wallaby. This study suggests that interfering with the balance of androgen and oestrogen affects the integrity of laminin structure and testis differentiation.

The herbicide atrazine was banned in Europe in 2003 due to its endocrine disrupting activity but remains widely used. The integrity of the laminin structure in fetal testis cords requires oestrogen signalling but overexposure to xenoestrogens in the adult can cause testicular dysgenesis. However, whether xenoestrogens affect laminin formation in developing testes has not been investigated. Here we examined the effects of atrazine in the marsupial tammar wallaby during early development and compare it with the effects of the anti-androgen flutamide, oestrogen, and the oestrogen degrader fulvestrant. The tammar, like all marsupials, gives birth to altricial young, allowing direct treatment of the developing young during the male programming window (day 20–40 post partum (pp)). Male pouch young were treated orally with atrazine (5 mg/kg), flutamide (10 mg/kg), 17β-oestradiol (2.5 mg/kg) and fulvestrant (1 mg/kg) daily from day 20 to 40 pp. Distribution of laminin, vimentin, SOX9 and DDX4, cell proliferation and mRNA expression of SRY, SOX9, AMH, and SF1 were examined in testes at day 50 post partum after the treatment. Direct exposure to atrazine, flutamide, 17β-oestradiol, and fulvestrant all disorganised laminin but had no effect on vimentin distribution in testes. Atrazine reduced the number of germ cells and Sertoli cells when examined at day 40–50 pp and day 20 to 40 pp, respectively. Both flutamide and fulvestrant reduced the number of germ cells and Sertoli cells. Atrazine also downregulated SRY expression and impaired SOX9 nuclear translocation. Our results demonstrate that atrazine can compromise normal testicular differentiation during the critical male programming window.
La era de la ebullición global: Desafíos y oportunidades para la resiliencia climática en la región centroamericana
Authors: Rojas  Morales José Rodrigo
Published: June 2024

[Introduction]: In July 2023 was announced the end of planetary warming and the beginning of the era of the global boiling. A climatic anomaly whose unprecedented, aggressiveness will hit the Central American region. [Methodology]: Through technological surveillance tools and data analytics, this study shows a series of challenges and opportunities to meet this threat and move towards resilient regional performance. [Results]: All countries have signed agreements and declaratory public policies for the climate resilience, however historical failures persist as well environmental passives to reduce greenhouse gas emissions and the strong dependence for the use of fossil energy. In contrast, Central America enjoys a matrix of opportunities to increase the climatic ambition, also a diverse mix of renewable energy sources, environmental pay mechanisms and actions to impulse circular economy and the bioeconomy [Conclusions]: The regional agenda fail in connect to a climate shielding to respond the rigors of the boiling era. Regarding those balances, and the scientific evidence, a road map, with climate smart and socially inclusive actions, is proposed. [Recommendations]: For the monitoring, research, and education programs on the boiling era, a regional observatory, on climate resilience (OR2C), is recommended.
Why is modern man afraid of death?
Authors: Tičkaitė Milda
Published: June 2024

In this research I will address the question of fear of death for modern man. No doubt this question was flickering in the silence of the Covid quarantines, seeing the reaction of others to the sudden deaths. To this end, I will analyze Western attitudes towards religion, legacy, the value of life, and the change in death rituals. The conclusion is based on the current context, the worldview of modern man.
Feed efficiency of dairy cattle as genetic trait
Authors:   National University of Life and Environmental Sciences of Ukraine, 15 Heroiv Oborony str., Kyiv 03041, Ukraine, Ruban S. Y. , Danshyn V. O. ,   National University of Life and Environmental Sciences of Ukraine, 15 Heroiv Oborony str., Kyiv 03041, Ukraine
Published: June 2024

This review article is devoted to the use of feed efficiency traits in dairy cattle breeding. An efficient cow is defined as the one that produces the same amount of milk and milk solids while consuming less feed and remaining healthy and fertile; thus, allowing to reduce costs without decrease in production. Improving feed efficiency is economically important due to the increasing price of fodder. Feed efficiency is a genetically complex trait that can be described as units of product output (e.g., milk yield) per unit of feed input. Nowadays genetic evaluation of dairy cattle for feed efficiency is routinely conducted in several countries, including Australia, USA, Canada, Netherlands, Denmark, Sweden, Finland, Norway and United Kingdom. Different countries use different measures of feed efficiency of dairy cows. The main feed efficiency traits are dry matter intake, gross feed efficiency, residual feed intake, energy balance and feed saved. Genome-wide association studies demonstrated that feed efficiency in polygenic trait. Nevertheless, several genes with large effects on feed efficiency were identified. Estimates of heritability of these traits vary from 0.07 to 0.49 and show the presence of considerable genetic variation of these traits and therefore, the possibility of their genetic improvement under the conditions of inclusion in breeding programs. Changes in diet and rumen microbiome substantially impact feed efficiency of dairy cows. Feed efficiency is related to methane emissions and excess nitrogen excretion. Genetic improvement of feed efficiency requires recording of individual data on feed intake in cows. Such data are limited. Two options exist to solve this problem: use of indirect predictors and genomic prediction. Accuracy of genomic prediction varies from 0.21 to 0.61 across countries. International cooperative pro­jects such as Efficient Dairy Genome Project in Canada were launched to establish large databases and to increase accuracy of feed efficiency traits genomic prediction. Future directions of research are the use of novel technologies: mid-infrared spectroscopy, artificial intelligence, holo-omics.
Photo-induced acceleration of chemical reactions by spherical mono- and bimetallic nanoparticles
Authors:   National University Zaporizhzhia Polytechnic Ukraine, Smirnova N. A. , Korotun A. V. ,   National University Zaporizhzhia Polytechnic Ukraine, Kulykovskyi R. A. ,   National University Zaporizhzhia Polytechnic Ukraine
Published: June 2024

The paper considers the problem of choosing the composition, structure, and size of spherical catalyst nanoparticles for carrying out plasmon-induced polymerization reactions. The concept of reducing the activation energy of the reaction in the presence of a catalyst and, accordingly, increasing the rate of a chemical reaction during heating due to the excitation of surface plasmon resonance is presented. Using the Drude model for the dielectric function, relationships were obtained for the frequency dependences of such characteristics as the real and imaginary parts of the polarizability, heating and the rate of chemical reactions when monometallic and bimetallic nanoparticles are used as catalysts, as well as the amplification of fields in their vicinity. The concepts developed in this work take into account the classical size dependence of the effective electron relaxation rate in monometallic and bimetallic nanoparticles under the assumption of diffuse scattering of electrons. Changes in the positions of the maxima of the imaginary part of the polarizability, heating, and reaction rate are analyzed with a change in the radii of monometallic and bimetallic nanoparticles. It is shown that the maxima of the dependences under study correspond to dipole surface plasmon resonances, and their number depends on the particle morphology. Changes in the amplification of electric fields in the vicinity of nanoparticles of different morphology have been studied. It has been found that the enhancement of the fields in all considered cases is maximum on the surface of the nanoparticle and decreases with distance from it. Practical recommendations are formulated regarding the size, composition and structure of nanoparticles for plasmon catalysis, which provide the highest rates of chemical reactions. Thus, all obtained frequency dependences have one maximum for monometallic and two maxima for bimetallic nanoparticles.
Conexões literárias
Authors: Cavalcanti Silva Pereira Priscila
Published: June 2024

Este relato apresenta o processo e os resultados do projeto “Conexões Literárias – Construindo Pontes de Aprendizagens para a vida”, que estimula o pensamento criativo-lógico e crítico dos estudantes com a utilização das Tecnologias Digitais da Informação e Comunicação (TDICs), não somente no âmbito escolar, mas também atendendo crianças de uma instituição filantrópica de apoio à criança com Câncer, fomentando o empreendedorismo e projeto de vida. Esse projeto utilizou as tecnologias digitais de forma integrada ao conteúdo curricular, com ênfase nos gêneros textuais e educação financeira, fundamentando-se teoricamente em documentos basilares da educação brasileira e em autores que desenvolveram pesquisas das áreas de letramento, multiletramentos e das TDICs.
Determining the critical success factors of e-commerce in Uzbekistan
Authors: Kerimova Irina , Ataniyazova Zamira
Published: June 2024

This paper explores the Critical Success Factors in e-commerce in Uzbekistan. First, the most essential variables are identified through a literature review. Then, experts in the Uzbekistan e-commerce industry evaluate each potential success factor. Third, the most outstanding factors are elicited through Factor Analysis. While some of the research findings suggest addressing IT-related variables to help secure customers in line with previous studies in developing countries, an unexpected discovery is human resources emphasis, which is typically emphasized in more developing countries. A qualitative part of the research makes an important contribution to e-commerce development. In particular, responsible institutions are recommended to revisit their counterfeit products policies. The paper serves as a guide for Uzbekistan e-commerce entities. Besides its practical value, the study contributes to the extant literature by enlarging the research body of critical success factors among developing countries.
Stress modulation strategies in Kluyveromyces marxianus: Unravelling the effects of shear force and aeration for enhanced specific ergosterol production
Authors: Vidra A. , Németh Á.
Published: June 2024

Ergosterol, as a precursor for synthesising useful molecules like vitamin D2, possesses significant physiological functions in both fungal and human systems. In fungi, ergosterol plays a crucial role in stress responses. In contrast to Saccharomyces cerevisiae yeast, the changes in specific ergosterol content of Kluyveromyces marxianus under various stress conditions are less known. This study investigated how ergosterol content changes in response to different stress factors. Carbon to nitrogen (C/N) ratio was examined using experimental design. The effects of aeration and shear force beside constant overall volumetric mass transfer coefficient (KLa) were examined. Cell growth and specific ergosterol content were investigated using ethanol stress during a two-stage fermentation. Based on the results, contradictory settings regarding C/N ratio and shear force were found to be favourable for cell growth and specific ergosterol content. However, increased aeration consistently elevated specific ergosterol content and favoured cell growth as well (2.5-fold and 1.5-fold, respectively). In K. marxianus fermentations, higher ergosterol yield can be achieved through a two-stage fermentation (138.9 mg L−1 compared to 52.9 mg L−1), where the first stage provides favourable conditions for cell growth, and the second stage involves stress (beneficial for ergosterol production) conditions. Conclusions drawn from the two-stage fermentation results suggest that early transitioning of cell growth to the second phase will not result higher adaption and specific ergosterol content compared to the transition at the end of exponential growth phase.
The Effect of Different Processing Techniques of Beefsteak with Eel (Monopterus Albus) Raw Materials
Authors: Adi Catur Pramono , Panjaitan Pola S.T. , Marleni Novita Rizki , Soeprijadi Liliek
Published: June 2024

One of the techniques commonly used to produce beefsteak is high temperature processing techniques. Research purposes; making eel steaks with different concentrations of eel meat, knowing the effect of processing techniques by grilling and steaming on eel steaks, testing the sensory quality, chemical quality and microbiological quality of eel steaks. The selection of eel raw materials is intended to utilize eel which contains high nutritional value and to increase its added value. The results of the research show that the organoleptic test results for fresh eel are so that the raw material can be said to be suitable. The results of the hedonic test for the highest appearance were sample C with a value of 6.81; The highest aroma value in sample C was 6.71; the highest taste score is D with a score of 6.76; and the texture got the highest score in sample C with a score of 6.71. It can be seen that sample C has a superior value in the hedonic test. The highest protein chemical test results were in sample C at 11.85%, the highest fat content in sample C was 3.33%, the lowest ash content in sample A was 2.39%, and the highest water content in sample A was 60.76%. It can be seen that the chemical tests that have sufficient nutritional value are samples C and A. Meanwhile, vitamin A has a good value for the steaming processing technique, namely 0.38.
Eggs Hatching of Betta Fish (Betta splendens) with The Addition of Ketapang Leaves (Terminalia cattapa Linn) at UPR Mitra Mina Sejahtera Indralaya, Ogan Ilir District
Authors: Azhari Muhammad , Syaifudin Mochamad , Yonarta Danang
Published: June 2024

The limited number of fish seeds is still an obstacle in betta fish cultivation activities due to the low percentage of hatching and high mortality of larvae. This research aims to increase the percentage of egg hatching and survival of betta fish by stimulating ketapang leaves. This research was carried out in a controlled area at UPR Mitra Mina Sejahtera located in Griya Sejahtera Indralaya Housing, Ogan Ilir Regency from June to July 2022. The addition of ketapang leaves as much as 2 g per L (P2) can increase the hatching percentage at 96.97% and betta fish larval survival rate to 87.92%. The water quality obtained from this research is the temperature of P1 ranges from 26.4-27.3°C, P2 ranges from 26.7-27.2, control ranges from 26.5-27.1°C, pH P1 ranges from 6.5-6.9, P2 ranges from 6.5-6.7 and control ranges from 6.9-7.2 and dissolved oxygen P1 ranges from 1.03-1.09 mg per L, P2 ranges from 1.00-1.05 mg per L and control ranged from 1.04-1.10 mg per L.
The sociolinguistic navigation of sexual normativities among same-gender-attracted men in contemporary Chengdu, China
Authors: Freestone Phil
Published: June 2024

In this article, the navigation of normativities by same-gender-attracted, male-identified individuals in Chengdu, China is considered with reference to their linguistic identity work. It foregrounds the relevance of plural normativities, which often arise from intersecting structural forces with diverse cultural roots, to better acknowledge the rich diversity of the broader sexual minority community in China. In turn, it argues that individual performances of sexual identity cannot be accurately accounted for using essentialist notions of culture. Furthermore, it is suggested that a sociocultural discourse analysis approach can provide an important and novel perspective on sexual identity in the region. Taking up this perspective questions and challenges assumptions of a characteristic orientation to normality in ‘Chinese culture’ and complicates oversimplified conceptualisations of normativity.
Active Surveillance in Metastatic Renal Cell Carcinoma
Authors: Beecroft Nicholas , D. Gauntner Timothy , Upadhyay Rituraj , Wang Shang-Jui , Yang Yuanquan , A Singer Eric , Dason Shawn
Published: June 2024

Metastatic renal cell carcinoma (mRCC) is a heterogenous disease with a variable clinical course. While therapies for treatment of this condition have progressed, they are not without toxicity. In some patients, active surveillance (AS) of this disease is increasingly considered to delay its toxicity. This article seeks to review the literature and discuss management of metastatic renal cell carcinoma, specifically regarding upfront AS, the role of radiation therapy in delaying systemic therapy, and surveillance after initial treatment with systemic therapy. Median time on AS prior to initiation of systemic therapy ranged from 14 to 60 months across studies. AS is appropriate to offer in favorable or intermediate risk, asymptomatic, and systemic treatment naïve patients with mRCC.
Investigation of approaches to designing complex database structures in systems of integrated monitoring of environmental, economic, energy and social parameters of the territory
Authors: Slipchenko Volodymyr , Poliahushko Liubov , Krush Olha , Rudyk Volodymyr
Published: June 2024

The object of research is the traditional and universal approach of designing the database structure in systems of integrated monitoring of ecological, economic, energy and social parameters of the territory, which include diverse data from various subject areas. In the course of the study, an analysis was performed based on a set of criteria such as scalability, ease of updating data, absence of empty fields, volume of the database, number of tables and fields, ease and speed of execution of requests for a sample set of indicators of the research object. The comparison of these approaches took place on the example of water resources monitoring, since it has several subsystems and a large number of indicators that are used for assessment. It is established that the proposed universal approach to designing complex database structures made it possible to reduce the volume of the database by 2.25 times due to the absence of empty fields. In particular, in the considered example, the filling factor of the database with the traditional approach is 1.75 times less than with the proposed universal approach. It should be noted that the rate of table filling for the traditional design approach can vary depending on the number of indicator values, while the table filling rate for the universal approach is always close to 100 %. Also, the proposed database design approach makes it possible to speed up data loading and processing. For example, with the same volume of significant information, the minimum speed of sampling the characteristics of one research object is 3.87 times greater in a database developed according to the principles of the universal approach than according to the rules of the traditional approach. The proposed structure of the database is successfully used in the system of complex eco-energy-economic monitoring. The developed structure of the database can serve as an effective basis for the formation of an electronic data bank at the level of the enterprise, region and country.
The synthesis of the Gospel and life as a goal of evangelization
Authors: Dyk Stanisław
Published: June 2024

The article presents selected examples of the synthesis of the Gospel and life, which is the goal of contemporary evangelization. In implementing the prophetic purpose, it was emphasized that the proclamation of the Word of God is to illuminate and transform human existence. In implementing the priestly function, the focus was on celebrating the Eucharist, revealing it as a source of human strength and energy, a school of sacramental perception of life and appreciation of matter, as well as a space for forming a new man. In the implementation of the priestly function, however, attention was paid to the presence of the Church in the world and the Christian lifestyle, which is closely related to the promotion of man and the quality of his life. The study emphasizes that the existential orientation of evangelization establishes the proper relationship of the Church with the world. It involves accepting the world, dialogue with it, and transforming it in the spirit of the Gospel.
Preaching the Word of God in the Polish synodal synthesis
Authors: Szewczyk Leszek
Published: June 2024

Launched in the Catholic Church by Pope Francis on October 10, 2021, the Synod on Synodality is entering the next stages. Continental syntheses have already been published, preceded by diocesan and national syntheses. The nationwide synodal synthesis and individual diocesan surveys are valuable sources containing numerous opinions on the state of preaching the Word of God in Poland. Despite the noticeable lack of theological references, Polish syntheses are important for the theory and practice of preaching the Word of God. The syntheses were prepared based on the opinions of 65,000 people participating in parish and diocesan meetings and 42 thousand people who responded to surveys and written correspondence. This study aimed to extract from the syntheses mentioned above issues concerning the nature of the homily and its position in the liturgy, the preacher of the Word of God, the general assessment of preaching in Poland, as well as the assessment of the content and form of homily preaching. However, the opinions and proposals contained in the syntheses should be the subject of further, in-depth research in the theology of preaching the Word of God.
Preparing a homily as an important element of pastoral care
Authors: Sławiński Henryk
Published: June 2024

The homily, which the Second Vatican Council assigned a special role among various forms of preaching the Word of God, is an important task for those, who are entrusted with pastoral care. The faithful eagerly listen to homilies, but at the same time, they often complain that their level is too low and expect homilies on the good level. Yet, the solution to the problem lies in good preparation of the homily. Also, preachers must be convinced that the time allocated for this is one of their most important pastoral duties. We have evidence of how the last popes, Benedict XVI and Francis, prepared their homilies. Working on a sermon is a creative process that goes through the following phases: research and collection of materials, incubation, illumination, and verification. The fruit of reflection and prayer is a homily characterized by Christocentrism, a positive message from which a moral call arises; it contains the teaching of the Church, actualizes the word of God, introduces the celebrated liturgy, and is single-thematic. Hence, in the pastors’ belief in the important role of the sermon and its reliable preparation, there is an opportunity to improve the quality of the homily.
The truth about man and for man. Practical implications of John Paul II’s encyclical “Fides et ratio”
Authors: Hajduk Ryszard
Published: June 2024

Twenty-five years ago, John Paul II’s encyclical Fides et ratio was published, where the question of truth occupies a central place. The task of the Church is to transmit to people the truth revealed by Jesus Christ, which discloses the mystery of God and man, is accessible in faith, and appeals to the intellect to accept it. In these times, dominated by a pragmatic approach to reality, a question arises about the practical, existential meaning of the truth proclaimed by the Church. The content analysis of the papal teaching in “Fides et ratio” leads to the conclusion that the truth cannot be reduced to a set of ideas that enrich human cognition. Therefore, the ecclesial ‘diakonia’ of truth serves human life because it helps man use his freedom properly and leads him to the fullness of humanity. The truth allows man to protect himself from relativism and religious egalitarianism threats. The communication of truth should consider people’s needs to perceive it as a precious gift from God, not as a yoke.
The nomination of Rev. Kazimierz Rolewski as bishop of Katowice and the reasons for the refusal
Authors: Szczepaniak Maciej
Published: June 2024

Rev. Kazimierz Rolewski (1887–1936) — parish priest in the Archdiocese of Poznań, rector of the theological seminary, and radio preacher — remains an inspiring figure to this day, as evidenced by the ongoing beatification process. Many people remember him as a priest who refused to accept the episcopal nobleness. This article refers to this common opinion in light of the Vatican archives. It is an attempt to highlight the important character traits of the discussed figure, especially his humility and sincerity. Based on the source analysis method, the article presents facts about Rev. Rolewski before and after the proposal to take over the bishopric of Katowice. This article presents the genesis of the interest in the parish priest from Ostrów Wielkopolski as a candidate for the diocesan bishop in 1925–1926. It describes the circumstances of the negative decision made at the apostolic nunciature in Warsaw. The above piece, which attempts to highlight the character traits important for the discussed character — his humility and honesty — fills the current biographical gap of Rev. Rolewski.
Вдосконалення інституціонального забезпечення стійкості ринку комбікормової продукції у воєнний і повоєнний періоди*
Authors: Нікішина О. В. , Зеркіна О. О.
Published: June 2024

У статті проаналізовано інституціональне забезпечення стійкості функціонування комбікормового ринку в довоєнний і воєнний періоди. На підставі проведеного аналізу здійснено періодизацію інституціонального забезпечення ринку з виділенням чотирьох підетапів у мирний та воєнний періоди, яка дозволяє дослідити еволюцію й трансформацію формальних інститутів, їх цілі, домінуючий напрям регулювання та вплив на тенденції розвитку системи суміжних до комбікормового ринків. Обґрунтовано доцільність застосування європейського ринково-відтворювального підходу до розробки формальних інститутів та розподілу ресурсів. Модернізовано механізм розподілу міжнародної донорської допомоги в системі суміжних до комбікормового ринку на засадах ринково-відтворювального підходу. Розроблено пропозиції щодо вдосконалення формальних інститутів у воєнний і повоєнний періоди, зокрема, Концепції Державної цільової економічної програми розвитку тваринництва на період до 2033 р., положень Закону України «Про безпечність та гігієну кормів» No 2264-VIII.