bluuebunny/crossref_metadata_2025 huggingface dataset:
Nonparametric Time Varying IV-SVARs: Estimation and Inference
Authors: Braun Robin , Kapetanios George , Marcellino Massimiliano
Published: January 2025

This paper studies the estimation and inference of time-varying impulse response functions in structural vector autoregressions (SVARs) identified with external instruments. Building on kernel estimators that allow for nonparametric time variation, we derive the asymptotic distributions of the relevant quantities. Our estimators are simple and computationally trivial and allow for potentially weak instruments. Simulations suggest satisfactory empirical coverage even in relatively small samples as long as the underlying parameter instabilities are sufficiently smooth. We illustrate the methods by studying the time-varying effects of global oil supply news shocks on US industrial production.
Analysing the impact of electric kick-scooters on drivers: vibration and frequency transmission during the ride on different types of urban pavements
Authors: Karpenko Mykola , Prentkovskis Olegas , Skačkauskas Paulius
Published: January 2025

The purpose of this research is to determine the vertical vibration and frequency spectrum transmitted to the rider by electric scooters travelling on different types of road surfaces. Vibration analysis involves the measurement of vibration levels of e-scooter elements, accompanied by the analysis of the Fourier Transform Spectrum and using a t-sample measurement design and a one-sample statistical method. Approach in the research allows overall driver comfort to be assessed through frequency and vibration analysis, considering vibrations received by the hands and the whole body. In addition, the natural frequencies of the electric scooter components and their stability are being investigated to assess vibration transformation. The study includes an assessment of ride comfort and considers potential health implications. The results obtained facilitate the identification of critical risks associated with vertical vibration frequencies transmitted to individuals when riding electric kick-scooters in urban areas with different types of pavements.
HETEROPHILE ANTIBODIES – A RARE BUT SIGNIFICANT CAUSE OF FALSE POSITIVE CARDIAC TROPONIN LEVELS
Authors: Chaulin Alexey M. , Duplyakova Polina D. , Duplyakov Dmitry V.
Published: January 2025

Highlights

Practitioners regularly encounter unexplained (false-positive) causes and mechanisms of increased concentrations of cardiac troponins. One of the most significant and common causes of false increases in cardiac troponin levels are heterophile antibodies. There are no articles in domestic and foreign databases that systematize in detail information about the prevalence, mechanisms of increase and ways to combat this cause of false-positive increase in cardiac troponin concentration, which was the purpose of this manuscript.

 

Annotation

According to traditional concepts, cardiospecific troponins (cTnT and cTnI) are the most important laboratory biomarkers with high diagnostic value in myocardial infarction (MI). The development of new generations of methods for determining cTnT and cTnI, also called high- and ultra-sensitive methods, has expanded the diagnostic capabilities of cardiac troponins in relation to other diseases in which myocardial tissue is involved in the pathological process, thereby carrying additional prognostic value. Given the wide scope for use of cTnT and cTnI, which is not limited to the diagnosis of MI, there is an urgent need to carefully identify all factors that can in any significant way affect or distort the result of laboratory testing of blood serum for cTnT and cTnI. Among all known factors affecting the concentration of cTnT and cTnI, heterophile antibodies are the most significant in terms of the degree of change (increase) in serum levels. In this review, we will consider the main causes of the formation of heterophile antibodies, the mechanisms of their influence on the concentration of cTnT and cTnI, as well as methods for detecting and combating heterophile antibodies.
DRESSLER SYNDROME IN VIEW OF MODERN IDEAS
Authors: Gamayunov Danil Yu. , Kalyagin Alexey N. , Fedotova Valentina N.
Published: January 2025

Highlights

The frequency of Dressler syndrome decreased sharply from 20 to less than 5% with the introduction of early reperfusion into clinical practice. Relapses of Dressler’s post-infarction syndrome are quite common. The review presents current literature data on the etiology and pathogenesis, diagnostic methods and various approaches to the treatment of Dressler syndrome, including the effectiveness of colchicine and reports on the use of immunoglobulins.

 

Annotation

The development of Dressler syndrome relapses within 1 year after the first occurrence of the event, despite the decrease in the frequency of the disease, emphasizes the relevance of the problem under consideration. Dressler syndrome is based on autoimmune genesis. Echocardiography is the “gold standard” of instrumental diagnostics and the most sensitive imaging method for suspected Dressler syndrome, but in some cases magnetic resonance imaging may be effective. There is currently no single treatment regimen for autoimmune pericarditis. Most literature sources indicate the most frequent use of nonsteroidal anti-inflammatory drugs, glucocorticosteroids and colchicine. The article highlights the literature data on etiology, modern views on pathogenesis, current methods of diagnosis of Dressler syndrome and various approaches to treatment tactics and drug selection. The following resources were used: eLIBRARY.ru, PubMed. The keywords were as follows: “Dressler syndrome”, “postinfarction syndrome”, “postpericardiotomy syndrome”, “myocardial infarction”. The articles published primarily in the last 5 years (2017-2022) were preferred.
CURRENT ISSUES OF MODELING HEART FAILURE AND MYOCARDIAL FIBROSIS IN RATS
Authors: Smirnova Elena A. , Ponomareva Olga V.
Published: January 2025

Highlights

Methods for modeling heart failure in rats are classified into models requiring surgical intervention, toxic, genetic and autoimmune models, models based on the effects of physical factors, the use of special dietary regimens.

It is impossible to single out a single ideal model, since the development of heart failure is a multifactorial process, it is preferable to use a combination of several methods.

The correctness of the choice of the model and its compliance with the tasks of future research must be confirmed by combining several diagnostic methods for verifying myocardial fibrosis - laboratory, histological, instrumental.

 

Annotation

Detailed study of the mechanisms of heart failure and its main pathogenetic factor, myocardial fibrosis, is required for developing new effective treatment strategies. The choice of an appropriate model is key for a reliable experimental study. The aim of the review is to systematize current data on methods for modeling heart failure in rats. The main advantages of these animals are high genetic, biochemical and physiological similarity with humans, ease of breeding, availability of maintenance, small size, while allowing for surgery. This article classifies the currently available rat models of heart failure, discusses their pathophysiological basis, timing of the formation of heart failure, clinical features, advantages and disadvantages of each experimental model. The authors have paid particular attention to methods developed by domestic scientists. Methods for assessing the developed myocardial fibrosis and the influence of drugs on its formation are considered. The study of heart failure requires reliable animal models to assess biochemical, functional, morphological changes in damaged myocardium, and controlled testing of new drugs. Should the necessity arise, specialists should use several methods simultaneously, whereas the choice of treatment strategy depends on the aim of the study.
ACUTE MYOCARDIAL INJURY AFTER SURGICAL LUNG RESECTION: INCIDENCE, CLINICAL FEATURES, PREDICTORS
Authors: Protasov Konstantin V. , Barakhtenko Olga A. , Batunova Elena V.
Published: January 2025

Highlights

Acute perioperative myocardial injury develops in 38.5% of patients with non – small cell lung cancer and is associated with the ThRCRI major cardiac events risk index, preoperative hemoglobin level and postoperative heart rate.

 

Aim. To determine the incidence and predictors of acute myocardial injury after surgical treatment of patients with non – small cell lung cancer (NSCLC).

Methods. The study included 104 men aged 63.0 [58–67] years who underwent lung resection for NSCLC. Blood levels of cardiac troponin I (cTnI) were determined before and 24 and 48 hours after surgery. Myocardial injury after noncardiac surgery (MINS) was diagnosed when postoperative cTnI increased > 99th percentile of the upper reference limit. Two patients with elevated cTnI of non-ischemic origin were excluded from the analysis. In groups with and without MINS, clinical parameters were compared and their relationships with the MINS development were assessed using univariate regression. Multivariate logistic regression analysis was performed to identify independent MINS predictors. ROC curves were constructed and threshold values of quantitative variables associated with the study outcome were determined.

Results. MINS was diagnosed in 40 patients (38.5%). In 36 of them, the cTnI increase was asymptomatic. Among patients with MINS, in contrast to the group without MINS, the share of pneumonectomy, heart rate (HR) after surgery and the cardiac events risk index ThRCRI were higher, as well as hemoglobin level before surgery was lower. Using multiple logistic regression, a combination of factors that provides the greatest accuracy in predicting MINS was identified: ThRCRI index ≥ 1 (adjusted odds ratio (OR) 5.85, 95% confidence interval [1.41–24.28]), hemoglobin before surgery (OR 0.68 [0.5–0.91] for every 10 g/L), HR after surgery (OR 1.99 [1.26–3.13] for every 10 min–1). Threshold levels were established for hemoglobin before surgery (135 g/L), below which the OR for MINS was 2.54 [1.12–5.75], and postoperative HR (88 min–1), above which the OR for MINS was 2.64 [1.16–5.99].

Conclusion. The incidence of acute myocardial injury after NSCLC surgery is 38.5%. In 90% of cases the MINS was asymptomatic. A mathematical model was created and following independent predictors of MINS were established: ThRCRI index ≥ 1, hemoglobin level before and heart rate after the surgery. At a threshold hemoglobin value < 135 g/L and HR>88 min–1, the risk of MINS increases significantly.
AUTOMATED OPPORTUNISTIC CT-SCREENING OF ABDOMINAL AORTIC ANEURYSMS USING ARTIFICIAL INTELLIGENCE: PROSPECTS AND CHALLENGES (LITERATURE REVIEW)
Authors: Kodenko Maria R. , Vladzimirskyy Anton V. , Omelyanskaya Olga V. , Suchilova Maria M. , Blokhin Ivan A. , Gatin Denis V. , Reshetnikov Roman V.
Published: January 2025

Highlights

Non-contrast computed tomography (CT) scan is a promising modality for opportunistic screening of abdominal aortic aneurysm (AAA).

Automation of opportunistic screening of AAA according to CT data is a promising use of artificial intelligence (AI) technologies.

The development of AI algorithms for opportunistic screening of AAA based on CT data is currently limited due to the high labor costs in preparing datasets for AI training and testing.

 

Annotation

Abdominal aortic aneurysm is a cardiovascular disease characterized by a latent progression and adverse prognosis. Timely diagnosis reduces surgical risks and postoperative complications. Diagnostic imaging methods used to detect and evaluate this disease, particularly in targeted and opportunistic screening, are reviewed. The prospects of automation using artificial intelligence technologies for opportunistic screening are explored, moreover, they have already proven to be effective tools for optimizing radiology reports in several fields. This review highlights, however, relatively poor development of artificial intelligence algorithms for opportunistic screening of abdominal aortic aneurysms on native non-contrast abdominal CT studies. Possible reasons for this phenomenon and potential ways of development of this subject area are investigated.
IN-HOSPITAL OUTCOMES OF FEMORAL-POPLITEAL BYPASS SURGERY ABOVE AND BELOW THE KNEE JOINT GAP USING THE “KEMANGIOPROTEZ” VASCULAR XENOGRAFT
Authors: Sogoyan Nerses K. , Tarasov Roman S.
Published: January 2025

Highlights

Reconstructive interventions on the arteries of the lower extremities remain an extremely common type of treatment for arteriosclerosis obliterans. Research in this area will help determine the indications for implantation of understudied but effective vascular xenografts, which have a number of significant advantages over other types of prostheses and surgical treatment methods.

 

Abstract

Aim. To analyze in-hospital outcomes of femoropopliteal bypass grafting above and below the knee joint gap using the “KemAngioprotez” vascular xenograft.

Methods. The retrospective study included 115 patients undergoing infrainguinal arterial reconstructions (femoral segment) using the “KemAngioprotez” epoxy-treated vascular xenograft (CJSC NeoKor, Kemerovo) for chronic arterial occlusive disease of the lower extremities from 2012 to 2022.

Results. 7 patients (6.1%) suffered thrombosis in vascular xenograft, including 2 cases (20%) with the point of formation of the distal anastomosis below the knee joint gap, 5 cases (4.8%) – above the gap (p = 0.113). Of the analyzed predictors of 30-day thrombosis and other complications in this period, the number of functioning arteries of the leg and the type of antiplatelet therapy were statistically significant. There were no fatal outcomes. 3 patients (2.6%) undergone repeated arterial reconstruction to restore peripheral blood flow. 2 patients (1.7%) with coronary artery disease and a history of myocardial infarction suffered perioperative myocardial infarction. 12 patients (10.4%) had lymphorrhea. 6 (5.2%) patients had postoperative wound diastasis; 2 (1.7%) patients had marginal necrosis.

Conclusion. In-hospital outcomes of infrainguinal revascularization of the lower extremities using the “KemAngioprotez” epoxy-treated vascular xenograft are comparable with bypass with autologous veins. This may be due to the satisfactory implantation properties of the vascular xenograft. Further multicenter prospective randomized studies are required to study the main limitation of the use of vascular prosthesis according to the literature – the tendency towards degeneration.
LONG-TERM OUTCOMES OF YOUNG PATIENTS AFTER SURGICAL CLOSURE OF VENTRICULAR SEPTAL DEFECT WITH EPOXY-TREATED XENO-PERICARDIAL “KEMPERIPLAS-NEO” PATCH
Authors: Shabaev Ilmir F. , Halivopulo Ivan K. , Sizova Irina N. , Shabaldin Andrey V.
Published: January 2025

Highlights

Ventricular septal defect is the most common congenital heart defect requiring open-heart surgery. The epoxy-treated patch made from xeno-pericardium used to correct this defect was assessed from the standpoint of efficacy, safety, thrombogenicity and degree of calcification

 

Annotation

Aim. To assess long-term outcomes of ventricular septal defect closure using epoxy-treated xeno-pericardial “KemPeriplas-Neo” patch in children.

Methods. This retrospective study included 42 patients aged 16 months to 18 years, diagnosed with ventricular septal defect (VSD, membranous and muscular) and undergoing VSD closure. The study did not include patients with congenital heart defects (CHD) and congenital and acquired valvular heart diseases. In the long-term follow-up, VSD patch closure (including pseudoaneurysms, fibrosis, recanalization of VSD and recurrence, macrocalcification) was assessed using postoperative transthoracic echocardiography (TTE).

Results. Mean age of patients at the time of surgery was 67.4 ± 53.4 months (range 16–216 months), and at the time of the study 178.2 ± 35.9 months (range 101–243 months). The mean follow-up period was 111.5 ± 18.5 months (range 70.0–147 months). According to TTE results, there were no complications after procedure. Valve function after surgical closure of VSD was satisfactory. Reoperations were not required, and there were no cases of acute stoke and myocardial infarction in the follow-up period. Moreover, there were no in-hospital deaths and no long-term fatal outcomes.

Conclusion. The data obtained indicate the safety and effectiveness of conducting ventricular septal defect closure using epoxy-treated xeno-pericardial “KemPeriplas-Neo” patch. The VSD patch did not disturb the movement of the interventricular septum, and it did not negatively affect the adjacent areas, including the aorta. However, it is necessary to increase the number of patients and conduct a comparative analysis with other types of patches (synthetic, glutaraldehyde–treated) for a more detailed study of the VSD patch efficacy.
CHANGES IN THE PORTRAIT OF PATIENTS WITH ACQUIRED MITRAL AND AORTIC VALVE DISEASE BEFORE IMPLANTATION OF BIOPROSTHETIC HEART VALVES
Authors: Kuzmina Olga K. , Stasev Alexander N. , Tsenter Iosif M. , Evtushenko Aleksey V. , Barbarash Olga L. , Barbarash Leonid S.
Published: January 2025

Highlights

Acquired valvular heart disease (AVHD) is a widespread pathology that remains one of the leading causes of cardiac mortality and disability in the population. The article presents an analysis of the changes in the “portrait” of patients undergoing surgical treatment of AVHD.

 

Aim. To assess changes from baseline characteristics of patients with acquired mitral valve disease before the implantation of a bioprosthetic heart valve.

Methods. The study included 600 patients admitted in 2000–2020 and undergoing surgical treatment of AVHD using bioprosthesis produced domestically at the Research Institute for Complex Issues of Cardiovascular Diseases (Kemerovo). The patients` portrait was assessed retrospectively, comorbidities, type and etiology of AVHD in 2000–2010 and 2011–2020 were evaluated. 

Results. The main changes in the “portrait” of patients with AVHD over the past decade are as follows: “aging” of recipients of bioprosthetic heart valves (median age went up from 52 [46; 58] to 68 [64; 71] years (p < 0.001)), an increase in the number of people with ischemic mitral insufficiency by 7.4 times, concomitant coronary artery disease by 4.4 times, and cerebral atherosclerosis by 3.7 times (p < 0.001).

Conclusions. The results of the analysis highlight the changes in the “portrait” of patients undergoing surgical treatment of AVHD. Taking into account all of the above-mentioned, it is necessary to develop patient-oriented approaches to management of patients undergoing surgical treatment of acquired valvular heart disease.
NaNO2/HCl/TBAB Catalyst: A Controlled Aerobic Oxidation of Sulfide Substrate in the Preparation of Polmacoxib Intermediate Under Mild Conditions
Authors: Macchindra Kadam  , Deepak Nale  , Datta Thorat  , Venkateswara Rao Vallu  , Bollikonda Satyanarayana  , Padi Pratap Reddy  , Sayujjata R. Vaidya
Published: January 2025

The oxidation of sulfide substrate in one of the synthetic stages of Polmacoxib drug substance has been efficiently performed employing cost efficient NaNO2-HCl reagents in phase transfer catalyst TBAB containing biphasic MDC-Water reaction media at 0-5 °C temperature to afford sulfoxide intermediate (1A) as an only product. The formed products were characterized by techniques such as NMR, MS and IR spectroscopy. To the best of our knowledge, the present work is the first report on utilization of NaNO2/TBAB/HCl catalytic system for the preparation of Polmacoxib stage 1A intermediate. Cost and energy efficiency, use of commercially available catalysts, high yields and purity are merits of the present work.
Optimization of Dyeing Conditions of Natural Dye Obtained from Vaccinium corrymbosum (Blueberry) On Cotton Fabric
Authors: Musa Abubakar Yahaya , Garba Fatima , Muhamad Ma’aruf Abdulmumin , Bioltif Yilni Edward , Bilyamin Adam Ansar , Usman Lawan
Published: January 2025

Using plants as natural sources of dyes promotes sustainable practices in textile production by reducing reliance on synthetic dyes, which often pose environmental and health concerns. Vaccinium corymbosum (blueberry) is a commercially and culturally significant plant, providing nutritious fruit and supporting biodiversity in its native habitats. In this study, natural dye extraction from V. corymbosum was performed using a mixture of 15 ml methanol, 20 ml distilled water, and 1% HCl. The extracted dye was optimized for dyeing cotton fabric by studying the effects of dye concentration, temperature, and dyeing time. Dye concentrations were varied at 0.1, 0.15, 0.25, and 0.3 g/cm³, with the optimum concentration identified as 0.3 g/cm³. Dyeing temperatures were adjusted to 60, 70, 80, 90, and 100 °C, with optimal results at 90 °C. Dyeing times were varied at 30, 40, 50, 60, and 70 minutes, with 70 minutes being the optimal duration. Color fastness of the dyed fabrics was assessed using a gray scale. Results showed that wash fastness was good (rating of 3), perspiration fastness in acidic and basic media ranged from fairly good (rating of 2) to better (rating of 3.5), and light fastness was moderate (rating of 5). The study found that increasing dye concentration led to greater dye absorption by the fabric. As temperature increased from 60 to 90 °C, dye molecule movement accelerated, enhancing diffusion into the fiber structure and resulting in deeper, more intense coloration. However, at 100 °C, excessive heat caused bond breakage, leading to faded colors. Extended dyeing time also improved the dye fastness on the fabric. This research demonstrates the potential of V. corymbosum as a natural dye source, contributing to more sustainable textile dyeing practices.
Chemical Composition and Antibacterial Activity of the Essential Oils of the Amazon Annona Species
Authors: Alcântara Joelma Moreira , Mesquita V. M. de Lucena Juliana , Mayo Marques Marcia Ortiz , Oliveira Lima Jennifer Araújo , Lima Maria da Paz
Published: January 2025

This study evaluated the chemical composition of essential oils (EOs) obtained through hydrodistillation from four Annona species native to the Amazonas state: Annona amazonica R.E. Fr. (commonly known as “envireira”), Annona mucosa Jacq. (“biribá”), Annona exsucca DC. ex Dunal (“araticum”), and Annona insignis R.E. Fr. (“araticum”). Additionally, their antibacterial activities were assessed. Using GC-FID and GC-MS, the major compounds identified were β-caryophyllene, from the leaves of Annona amazonica (14.7%) and A. exsucca (22.2 and 15.3%), γ-muurolene (20.2 and 15.4%) from the leaves of A. exsucca, caryophyllene oxide from the leaves of A. insignis (35.4%), (Z)-nerolidol from the fruits of A. mucosa (38.2%). The EO from A. exsucca, rich in γ-muurolene (20.2%), exhibited significant antibacterial activity against the gram-positive bacterium Streptococcus sanguinis (MIC: 10 μg.mL-1).
Chemical Elements of the Periodic Table in Indigenous Language as a Teaching Resource for Contextualized Chemistry/Science Teaching
Authors: Wai Wai Tewton , Carlos Castello Kelly , Marne da Silva Araújo dos Santos Virginia , Santos Barreto Hosana Carolina , Santos Ricardo Carvalho
Published: January 2025

Roraima is the northernmost state in the Legal Amazon and the northernmost part of Brazil. Its population is over 600,000, of which approximately 15% are indigenous populations, the ethnic groups being Macuxi, Wapichana, Taurepang, Ingaricó, Patamona, Yanomami, Ye`kuana, Sapará, Waimiri Atroari and Waiwai. Indigenous populations in Brazil have few teaching materials that value the indigenous language and knowledge, as well as their relationship with science. The aim of this work is to develop contextualized, intercultural and interdisciplinary cards for teaching chemistry/science based on the identification of chemical elements of the Periodic Table found in the Holy Bible in the indigenous Waiwai language. To this end, we used applied research, with inductive reasoning, with exploratory and descriptive objectives for this study, with a qualitative approach using the documentary technique. The selection of documents was based on the Holy Bible translated into the Waiwai indigenous language, which resulted in 14 citations for sulfur (S), 86 for pehu (Fe), 35 for kobre (Cu), 10 for prata (Ag), 7 for estañu (Sn), 182 for ooru (Au) and 9 citations for xumbu (Pb). These were used in the construction of the teaching material. Through categorization, the data were decoded and interpreted. The educational product developed, the cards, is a teaching material for teaching chemistry/sciences that is contextualized and expresses the ethnic group's cultural and identity. In this sense, the production of cards seems to be an effective pedagogical resource for teaching chemistry/sciences in an intercultural context.
Investigation of the displacement of an odonto-prepared tooth based on a comparison of digital models of the jaws. Analysis of a clinical case.
Authors: Shtern Konstantin , Tyo Elena A.
Published: January 2025

Aim
The substantiation of the duration of orthopedic treatment, taking into account the error in the displacement of the odonto-prepared tooth based on a comparison of digital models of the jaws.
Methods
To analyze the data on the distance at which the odonto-prepared tooth moved towards the antagonists over a certain period of time, the distance to the antagonists' teeth was measured from digital models.
Digital images of jaw models obtained immediately after odontopreparation marked them as initial data. After 24 days after the first impressions were taken, the digital models obtained from the repeated impressions were designated as current data.3D combination of dentition models in the position of central occlusion, and measurement of the distance of the initial and current data was carried out 10 times. To assess the displacement of the odonto-prepared tooth, their values ​​were compared.
Results
Based on the data obtained, it can be concluded that there are statistically significant differences between the measurements carried out in a known period of time; the average value of the data ​​of the initial situation is 1.345 ± 0.005 mm. The average value of the data of the current situation is 1.229 ± 0.003 mm. The difference between the measurements allows concluding that there was a displacement of the odonto-prepared tooth by 0.116 ± 0.002 mm (116 ± 2 μm).
Conclusion
The clinical result of the study suggests the implementation of orthopedic treatment with fixed structures, without the use of a temporary structure, in the shortest possible time. The displacement of the odonto-prepared tooth towards the antagonist teeth, measured on digital jaw models, shows that the time of laboratory manufacture of the prosthesis without the use of a temporary structure for more than 24 days is critical, leading to defects in the dental prosthesis.
INFLUÊNCIA DE NOVOS TRIAZOIS ASSOCIADOS A ADJUVANTE NA AREA FOLIAR E NA TAXA DE CLOROFILA DE MUDAS DE CONILON
Authors: De Lima Athaise Ferreira , Cruz Tatiane Paulino , Ferreira Mayse Margarida , De Almeida Samira Luns Hatum , Lopes Jose Carlos , De Queiroz Vagner Tebaldi , Costa Adilson Vidal , Moraes Willian Bucker
Published: January 2025

Objetivou-se com este trabalho com este trabalho, avaliar a influência da aplicação de novas moléculas de triazól sobre as mudas de cafeeiro conilon em casa de vegetação.Os triazóis foram obtidos através da “reação de Click”, por meio da transformações dos grupos funcionais do material de origem utilizado o glicerol.Utilizou-se o delineamento inteiramente casualizado DIC em esquema fatorial 4 x 2 + 1x (um fungicida, três moléculas de triazól, um adjuvante e uma testemunha). Em todos os tratamentos foram utilizadas três repetições. Os parâmetros avaliados foram a taxa de clorofila utilizando-se de um clorofilog e área foliar através de avaliação destrutiva onde as mesmas são coletadas e medidas por meio de equipamento de medição automática. Ao termino das avalições constatou-se que novas moléculas de triazol testadas não apresentam efeito antagônico as mudas de cafeeiro conilon.
A001: Research on the Physical Education Teaching Model of Professional
Physical Fitness for Navigation Majors
Authors: Yao Jianmin
Published: January 2025

Research Purpose: Due to the unique working environment of seagoing vessels,
the physical and mental health of crew members is put to special tests. This
requires students majoring in navigation not only to have basic vocational
and technical abilities, but also to have physical fitness to adapt to
future work environments.

Research methods: This study used literature review, survey interviews, and
logic analysis to analyze the physical fitness required for seafarers to
work and live on ships.

Research results: 1. Choose activities that meet the basic professional needs
of seafarers, such as swimming, high-altitude diving, and surface survival,
to exercise their ability to self-rescue in water. 2. Choose activities that
meet professional physical fitness, such as yoga, Tai Chi, table tennis,
soft net climbing, race walking, long-distance running, pull-up, etc., to
exercise attention, concentration, upper and lower limb strength endurance,
and cardiopulmonary endurance. Indeed, good cardiovascular endurance plays
an important supporting role in responding to emergencies or shipwreck
situations. 3. Based on the purpose of protecting seafarers' occupational
labor, carrying out teaching on body posture, such as climbing steep
gangways, bending down to carry heavy objects, etc. 4. Carrying out
psychological counseling for the prevention and treatment of occupational
psychological diseases among seafarers, adding content such as
self-psychological suggestion and insomnia treatment. 5. The teaching
process control shall comply with the provisions of the "Management Rules
for Crew Training of the People's Republic of China" and the "Quality
Management Rules for Crew Education and Training of the People's Republic of
China", and always comply with the value orientation and standards in the
crew education and training quality management system. 6. Teaching
assessment and evaluation must comply with the rules of the "Quality
Management Rules for Crew Education and Training of the People's Republic of
China" and the "International Seafarer Training, Certification, and
Watchkeeping Standards Convention (STCW78/95 Convention), and the assessment
indicators shall be quantified based on the principles of the scientific
method and operability.

Conclusion: Vocational colleges have varying levels of understanding and
emphasis on professional physical fitness, and variability in the allocation
of teaching resources. Under limited resources, it is recommended to
establish a vocational physical fitness teaching model that is tailored to
local conditions, adjusting it according to the original traditional
physical education teaching model, listen to feedback and continuously
optimize it in practice, and form a characteristic physical education
teaching model that meets the school's and students' professional
development.
A102: Effects of Exercise on Body Composition and Blood Lipids in Normal
Weight Obesity Women
Authors: Wang Yida , Liu Jun , Wang Xiaoling
Published: January 2025

OBJECTIVE: Normal weight obesity (NWO) is a prevalent public
health concern, with a global incidence ranging from 4.5% to 22%. It is
significantly associated with an increased risk of chronic diseases such as
diabetes and cardiovascular disorders, heart metabolic disturbances, mental
disorders, and overall mortality. Prior research has demonstrated that
physical activity interventions are cost-effective strategies. However,
there is currently no meta-analysis that specifically targeted the efficacy
of exercise interventions for NWO individuals. Hence, this study aimed to
conduct a comprehensive analysis of this issue.

METHODS: Randomized controlled trials published before November
2023 were retrieved from databases such as Web of Science, PubMed, Scopus,
The Cochrane Library, EBSCO, China National Knowledge Infrastructure (CNKI),
and Wanfang Data. Meta-analysis was conducted using Review Manager 5.4 and
Stata 17.0 software. Literature screening followed the PRISMA 2020
flowchart, with inclusion criteria based on the PICOS principles. Bias risk
was evaluated using the Cochrane Risk of Bias 2 tool, and the certainty of
evidence was assessed using GRADEpro 3.6 software. Leave-One-Out sensitivity
analysis was employed to ensure result robustness, with subgroup analysis
exploring the impact of other factors. The review protocol was registered on
PROSPERO (CRD42023442906).

RESULTS: Results from seven studies (with 11 data sets) with
240 participants were included in the meta-analysis. The quality of the
study ranged from very low to moderate. Compared to the control group,
exercise intervention demonstrates a moderate to substantial significant
improvement in weight (SMD = -0.42; 95% CI: -0.68 to -0.15; P < 0.001), body mass index (SMD = -0.75; 95% CI:
-1.50 to -0.01; P = 0.04), body fat percentage (BF%, SMD =
-1.12; 95% CI: -1.90 to -0.34; P = 0.005), and systolic
blood pressure (SBP, SMD = -0.60; 95% CI: -1.02 to -0.19; P
= 0.004). No changes were observed in diastolic blood pressure (DBP, P = 0.170). Regarding blood lipids, exercise
intervention also exhibits a moderately favorable effect on triglycerides
(TG, SMD = -0.49; 95% CI: -0.82 to -0.16; P = 0.004), while
it does not significantly impact total cholesterol (TC, P =
0.310), high-density lipoprotein cholesterol (P = 0.420),
and low-density lipoprotein cholesterol (P = 0.419).

CONCLUSION: There is evidence suggesting that exercise
intervention has a significant positive impact on body composition and blood
lipid levels in NWO women, particularly in terms of BF% and TC. However,
there remains uncertainty regarding the effects on whole-body fat mass, lean
body mass, visceral fat mass, and subcutaneous fat mass. Further research is
warranted to establish consensus in these areas.
A104: Competitive Dynamics and Self-Curation in Fitness Culture
Authors: He Pei
Published: January 2025

The rising popularity of fitness and bodybuilding in China has not only
transformed it into a significant cultural phenomenon but also a competitive
arena where hundreds of competitions annually attract dedicated athletes.
These athletes strive for physical excellence and simultaneously emerge as
emblematic leaders within the rapidly evolving fitness culture. Utilizing
Pierre Bourdieu's concepts of cultural capital and field, this article
examined how bodybuilders navigate and strategically shape the competitive
landscape to accrue status and define their paths to success. This
investigation employed a methodological approach combining auto-ethnography,
with the author participating as a competitor, and semi-structured
interviews with 35 athletes and key figures in the fitness industry. The
findings revealed the strategic interactions and self-curation tactics that
athletes use to distinguish themselves in this competitive field. The study
discussed how bodybuilders selectively engage in competitions to optimize
their professional goals, employed diverse strategies for self-definition,
and integrated motivational, cross-boundary, and comprehensive strategies to
synchronize their recognition in the field with personal self-actualization.
This sociological analysis offered deeper insights into the cultural
dynamics and social constructions that underpin professional success and
identity formation in the competitive world of bodybuilding, highlighting
how individuals cultivate their cultural capital within this unique social
field.
A105: Correlation Analysis Between Cognitive Style and Judgment Accuracy
of Tennis Umpires in Zhejiang Province
Authors: Cai Kairui , He Wensheng
Published: January 2025

Background/Purpose: The influence of cognitive style on
decision-making in sports has always been a hot research direction in sports
psychology. As the law enforcers in the stadium, the individual cognitive
style of the umpire in the penalty will also affect the results of a game to
an extent. This paper studied the accuracy of on-the-spot decision-making
judgment of tennis umpires classified by field dependent-field independent
cognitive style and provided a new idea and scientific method for the
selection and cultivation of tennis umpires.

Methods/Design: In this experiment, literature method,
experimental method, mathematical statistics, logical analysis method and
other related research methods were used. In the experimental method, a
total of 68 tennis umpires of three, two, one and national level in Zhejiang
province were selected as research objects. Their
field-dependent-field-independent cognitive styles were distinguished by
Rod-Frame tests, using video experiments to obtain the experimental
results.

Results: As the level of umpires increases, the proportion of
umpires with field-independent cognitive style increases, and the proportion
of umpires with field-dependent cognitive style decreases. There is no
significant difference in video experiment between umpires of the same level
and different ages. Short-term training (one month) can improve the accuracy
of umpires' judgment, but the improvement of first-level and national-level
umpires is not obvious, and the improvement of second-level and third-level
umpires is significant. There was no significant correlation between field
cognitive style and video experiment results in the second and third-level
umpires. In the first-level and national umpires, there is a significant
correlation between field cognitive style and video experiment results. The
correct rate of video experiment of field-independent umpires is
significantly higher than that of field-dependent umpires.

Conclusion: Level and cognitive style are important factors
affecting the accuracy of umpire judgment. In low-level umpires, training is
an important means to enhance the level of decision-making. Among high-level
umpires, field-independent umpires have more potential and development space
than field-dependent umpires.
A108: The Dilemma and Path Choice of Ethnic Traditional Sports
Authors: Xie Jiali
Published: January 2025

Purpose: As an important part of the excellent traditional
culture of the Chinese nation, ethnic traditional sports have a unique role
in promoting the formation and strengthening of the sense of community of
the Chinese nation. However, ethnic traditional sports face many dilemmas in
the process of promotion and popularization, so it is of great practical
significance to study the realistic dilemmas and path choices of ethnic
traditional sports.

Method: This study collected relevant information through the
documentation method to understand the current development status and
dilemma of traditional ethnic sports. Through the interview method, we
gained an in-depth understanding of the specific situation of carrying out
ethnic traditional sports activities in communities, schools, enterprises,
and institutions. Through the field investigation method, field observation
and recording of ethnic traditional sports activities were carried out to
provide real and reliable data and information for the study.

Results: Ethnic traditional sports face the following dilemmas
in the process of promotion and popularization: (a) a single way of
inheritance, (b) a limited number of people participating in ethnic
traditional sports due to the fact that they are not very competitive and
lack the ornamental and attractive qualities of modern sports, (c) the
promotion and popularization of ethnic traditional sports required a large
amount of financial support, but the lack of policy support and financial
investment led to poor promotional effect, (d) low cultural identity.

Conclusion: To promote the development of traditional ethnic
sports, we should start from the following aspects: (a) strengthen
theoretical research, (b) strengthen the education and publicity of
traditional ethnic sports, (c) innovate the inheritance methods, (d)
strengthen the policy support, attract more social resources into the
promotion and popularization of traditional ethnic sports, (e) strengthen
the cooperation among schools, communities, enterprises, and institutions to
form a promotional, (f) strengthen the excavation and organization of
traditional national sports culture, carry forward its cultural connotation
and value, and enhance cultural self-confidence.
A114: Effect of Four-Way Boxing Exercise on Cognitive Flexibility of High
School Students with Depression Tendency
Authors: Hao Tongtong
Published: January 2025

Purpose: In recent years, depressive symptoms are more
prominent than other psychological problems among Chinese high school
students. Cognitive flexibility impairment is one of the important cognitive
impairments in depression. The four-way boxing practice has the
characteristics of rich content of action and various forms of practice.

Methods: This study used the method of literature, mathematical
statistics, questionnaire and experiment, and four-way boxing practice as
the intervention.

Results: The total score of the cognitive flexibility scale was
negatively correlated with the scores of the self-rating depression scale
(all P’s < 0.05). The cognitive flexibility of high depression prone high
school students was significantly lower than that of low depression prone
high school students. The results showed that: (1) In the self-rating
depression scale, the total score of the experimental group was
significantly lower than that of the pre-test (P < 0.05), but there was
no significant change in the control group; (2) In the cognitive flexibility
scale, the total score and the controllable subscale scores of the
experimental group were significantly higher after the test than before the
test (P < 0.05), and the scores of the selective subscale after the test
were significantly higher than before the test (P < 0.05), but there were
no significant changes in the control group; (3) In Stroop color word test,
the post-test response of the experimental group was significantly lower
than that of the pre-test (P < 0.05), while the control group had no
significant change (P > 0.05); In the Wisconsin card test, the reaction
time of the experimental group was significantly lower than that of the
pre-test (P < 0.05), and there was no significant change in the control
group.

Conclusion: There is a negative correlation between depression
tendency and cognitive flexibility in high school students, and the four-way
boxing practice has a positive effect on cognitive flexibility in high
school students with depression tendency. The four-way boxing exercise can
improve the conversion function and refresh function, improve the thinking
set, and enhance the adaptability and execution ability in the constantly
changing task of high school students with depression tendency. In the
encouragement and praise, the self-esteem and self-confidence of
depression-prone high school students were improved; In hand, eye, body, Fa
and step coordination, it improved the ability to focus and distribute
attention, thereby improving cognitive flexibility and depressive
symptoms.
A115: Research on the Effects of Chinese Health and Physical Education
Curriculum Across Different Age Groups
Authors: Liu Kang , Wei Xingyue
Published: January 2025

Background/Purpose: Facing the health challenges of different school-age
groups from childhood to adolescence, this study aimed to evaluate the
applicability and effectiveness of the Chinese Health Physical Education
curriculum model across various school ages, to explore its contribution to
promoting the physical and mental health of students of all ages.

Method: A cross-sectional study design was employed, selecting one primary
school, one middle school, and one high school as research subjects. The
Chinese Health Physical Education curriculum model was implemented, and
questionnaires, physical activity monitors, and physical fitness health
tests were used to evaluate and compare the changes in exercise capacity,
health behaviors, and physical skills among students of different ages.

Results: The results indicated that the Chinese Health Physical Education
curriculum model effectively improved students' levels of physical activity
and health awareness across all school ages, but there were differences in
the responses of students of different ages to certain teaching methods. For
example, primary school students preferred gamified learning, while high
school students valued more the diversity and challenge of sports
activities. Additionally, the Chinese Health Physical Education curriculum
model showed a positive impact on improving students' mental health,
especially in enhancing self-efficacy and teamwork awareness.

Conclusion: This study confirmed the effectiveness of the Chinese Health
Physical Education curriculum model across different school ages,
emphasizing the importance of customizing teaching content and methods
according to the age characteristics of students. It provided an important
basis for further optimizing the Chinese Health Physical Education
curriculum model, suggesting that future research should explore the
specific needs of students of different ages to achieve a broader health
promotion effect.
A012: Advances in Physiotherapy for Neurogenic Bowel Dysfunction in
Spinal Cord Injury Athletes
Authors: Peng Yanglulin
Published: January 2025

Purpose: Neurogenic bowel dysfunction (NBD), a common complication following
spinal cord injury (SCI), significantly impacts the quality of life for SCI
athletes. Recent domestic and international studies have indicated the
effectiveness of physical therapy in treating bowel dysfunction. This paper
aimed to summarize the pathophysiological characteristics of SCI athletes,
explore research progress in physical therapy for improving NBD after SCI,
and maximize the enhancement of the quality of life and athletic performance
of SCI athletes.

Method: Literature searches were conducted across several databases,
including CNKI, PubMed and Web of Science, covering relevant literature from
1993 to 2022. Subsequently, the collected literature was screened, analyzed,
and summarized.

Results: Conventional treatments for NBD pose challenges due to the lack of
targeted and highly reliable assessment methods or scales, both domestically
and internationally. Drug therapy carries associated side effects, and
interventions like digital rectal stimulation and enemas have low acceptance
among athletes. Compliance with dietary adjustments and abdominal massage is
poor, showing limited effectiveness. Therefore, there is an urgent need to
identify safer, more convenient, and effective physical therapy options. In
addition to well-established pelvic floor muscle training, various types of
electrical stimulation therapy have shown continuous innovation. Building on
the research foundation of electrical stimulation therapy, prospective
methods, such as magnetic stimulation, transcranial magnetic stimulation,
and biofeedback therapy, have been proposed. Physical modalities, including
laser, shortwave, infrared, ultrasound, and hyperbaric oxygen have been
widely applied, demonstrating positive effects on improving bowel
dysfunction and providing new directions for further exploration.

Conclusion: SCI athletes, integral members of the disabled athlete community
and a significant vulnerable group, warrant broad attention from society. By
utilizing physical therapy as a means and considering the pathogenesis,
finding more precise quantitative assessment indicators, further exploring
exercise therapy for bowel disorders, and providing personalized treatment
plans can alleviate the suffering from SCI complications, maximize the
functional level, and enhance the competitive performance of SCI athletes.
This may contribute to the broader development of their athletic
careers.