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THE RESEARCH OUTCOME OF INFLUENCE ON THE FUEL FILTER CONTAMINATION FOR THE BASIC ENGINE PERFORMANCE 燃油滤清器污染对发动机基本性能影响的研究成果
Pub Date : 2022-02-24 DOI: 10.31435/rsglobal_ws/28022022/7769
Erdenesaikhan Oyunsurtal, Ulziibaatar Tserendorj
We performed an experiment to determine the resistance impact on the engine performance resulted from the engine fuel system. Therefore we designed a tool for creating artificial resistance in the fuel pipe for determining resistance contamination in the fuel system. The artificial resistance between high pressure pump pipe and engine fuel filter was created in the field and laboratory then the diagnostic program EEM3 was used in the experiment. We tested the resistance by the pipe and decreased the pipe diameter of the fuel flow resistance from 8.5mm to 2.3 mm with 18 versions. As a result of the test, the basic indicators of the engine were changed when pipe diameter reached 6.5mm from 8.2 mm. The certain change on cyclic fuel supply occurred when the fuel flow increased and pipe diameter dropped. Moreover, the basic indicators of fuel consumption, torque and engine power were changed. It influences to the basic indicators due to the fuel filter contamination and regression of permeability proficiency then the engine will lose out the fuel.
我们进行了一个实验,以确定发动机燃油系统对发动机性能的阻力影响。因此,我们设计了一种在燃油管道中产生人工阻力的工具,以确定燃油系统中的阻力污染。在现场和实验室制造了高压泵管与发动机燃油滤清器之间的人工阻力,并应用诊断程序EEM3进行了实验。我们通过管道测试阻力,将燃油流动阻力的管径从8.5mm减小到2.3 mm,共18个版本。试验结果表明,当管径由8.2 mm增加到6.5mm时,发动机的基本指标发生了变化。随着燃油流量的增大和管径的减小,循环供油量有一定的变化。油耗、扭矩、发动机功率等基本指标发生变化。由于燃油滤清器的污染和渗透能力的退化,影响了发动机的基本指标,导致发动机漏油。
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引用次数: 0
IMPROVING THE PERFORMANCE PROPERTIES OF AUTOMOTIVE PARTS BY FORMING WEAR-RESISTANT COATINGS 通过形成耐磨涂层来改善汽车零部件的性能
Pub Date : 2022-02-24 DOI: 10.31435/rsglobal_ws/28022022/7774
Posviatenko E. K., Holovashchuk M. V.
The work is devoted to solving the scientific and technical problem of ensuring the tribotechnical properties of car parts through the use of wearresistant coatings. The synthesis of the main types of wear of car parts and ways to improve their tribotechnical properties was carried out, which allowed to substantiate the feasibility of using wear-resistant coatings to restore and strengthen them.An urgent problem is the reasonable search and development of highly efficient, easy-to-use technologies for the restoration of parts to improve the performance of cars. Solving this problem requires the introduction into practice of strengthening and restoring car parts wear-resistant coatings. Summarizing the results of research on the main types of wear of car parts allowed us to conclude that they work in conditions where operating loads (pressure, temperature, environmental action, etc.) perceive mainly their surface layers, and therefore it is enough to restore not all parts but only worn surfaces by applying wear-resistant coatings.It has been proven that to improve the performance of car parts, it is important to choose the right simple and affordable ways to apply coatings that will increase their service life. It is substantiated that among the methods of applying wear-resistant coatings are the most common, cheapest and simplest methods of gas-thermal spraying, namely gas-flame spraying and electric arc spraying. Restoration and strengthening of car parts by applying wear-resistant coatings has solved the problem of providing their resource, which is not inferior to the resource of new parts.
该工作致力于解决通过使用耐磨涂层来保证汽车零部件摩擦技术性能的科学技术问题。综合了汽车零部件的主要磨损类型和改善摩擦技术性能的方法,证实了使用耐磨涂层修复和强化汽车零部件的可行性。一个迫切的问题是合理寻找和开发高效、易用的零部件修复技术,以提高汽车的性能。解决这一问题需要将汽车零部件耐磨涂层的强化和修复引入实践。总结了对汽车零部件主要磨损类型的研究结果,我们得出结论,它们在工作负荷(压力、温度、环境作用等)主要感知其表层的条件下工作,因此,通过应用耐磨涂层来修复磨损的表面而不是所有零件就足够了。事实证明,为了提高汽车零部件的性能,重要的是选择正确的简单和负担得起的方法来涂抹涂层,这将增加它们的使用寿命。实践证明,在应用耐磨涂层的方法中,最常见、最经济、最简单的方法是气体热喷涂,即气体火焰喷涂和电弧喷涂。通过应用耐磨涂层修复和加强汽车零件,解决了提供其资源的问题,这并不亚于新零件的资源。
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引用次数: 0
SEARCH FOR AN EXTREMUM USING THE STEEPEST DESCENT METHOD UNDER THE CONDITIONS OF EXPERIMENTAL ERRORS 在实验误差条件下,用最陡下降法求极值
Pub Date : 2022-02-24 DOI: 10.31435/rsglobal_ws/28022022/7785
Nona Otkhozoria, Vano Otkhozoria, Shorena Khorava
One of the spread first level methods of optimum search is learned by the steepest descent method in conditions when there are mistakes in the experiment. The steepest descent method is investigated and is successfully applied in situations, when, there are no mistakes of experiment. However, in real situations the used means of measurement always have determined errors owing to what the appropriate meanings of the response receives with mistakes. The model of the steepest descent algorithm in created, when the length of the step does not depend on the meaning of the purpose functioning. Stepping process realization algorithm and program provision in MathCAD, computer mathematic, system is designed. The realization outcome mistakes for different meaning are presented, the step movement of the optimum dot direction is shown according to function meaning and argument meaning as well. The amount needed for the tactics necessary to approach the minimum is established, the quake amplitude in the surrounding of different level experiment mistakes at the optimum search efficiency in different step conditions.
在实验中存在错误的情况下,采用最陡下降法学习最优搜索的一种扩展一级方法。对最陡下降法进行了研究,并成功地应用于实验中没有错误的情况。然而,在实际情况中,所使用的测量手段总是有确定的误差,这是由于响应的适当含义接收到错误。当步长不依赖于目的函数的含义时,建立了最陡下降算法的模型。设计了步进过程在计算机数学MathCAD中的实现算法和程序编制。给出了不同意义下的实现结果错误,并根据函数意义和参数意义给出了最优点方向的步进运动。建立了所需策略量逼近所需策略量的最小值,在不同水平的地震振幅周围实验误差在不同阶跃条件下的最优搜索效率。
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引用次数: 0
RECURRENT VULVOVAGINAL CANDIDIASIS: CURRENT ISSUES (A REVIEW) 复发性外阴阴道念珠菌病:当前问题(综述)
Pub Date : 2022-02-23 DOI: 10.31435/rsglobal_ws/28022022/7780
Nataliia Ratushniak, Aurika Sukhanova
Recurrent vulvovaginal candidiasis (RVVC) is a widespread problem for today. Symptoms of the disease significantly reduce women life quality. It is common reason for medical help. Clinical sings of vaginal candidiasis are nonspecific. The most common method of diagnosis - microscopy of vaginal discharge, does not always provide enough information. Among the causative agents of candidiasis, Candida albicans and Candida nonalbicans have different prevalence in different regions of the world.Resistance to antifungal drugs is increasing due to it widespread applying.Risk factors for RVVK are: antibiotic therapy, immunodeficiency conditions, diseases of the gastrointestinal tract, contraceptives, corticosteroids, hormonal disorders of women, allergic diseases. Recent studies indicate the multifactorial cause of candidiasis, especially the imbalanced composition of the vaginal microflora and genetic predisposition. Resistance to antifungal drugs is increasing, especially to Fluconazole, that is most often applied in clinical practice.The role of immunoregulatory mechanisms is reflected in the reduced activity of immunity in the vagina. Changes in Tol-like receptor (TLR) genes have been reported in women with RVVC. Also, interlexins can lead to a prolonged inflammatory process in the vagina. Currently, polymorphism of the mannose-binding lectin gene in women with RVVK relevant topic for research. That changes may be a reasone of recurrence.Determination of mannose-binding lectin for diagnostic and therapeutic purposes is promising research area. There is increasing scientific interest in the study of this pathology. In publication described diagnosis of RVVK, the species composition of the pathogen, risk factors, impact of hormones and genetic predisposition.
复发性外阴阴道念珠菌病(RVVC)是当今一个普遍存在的问题。该病的症状大大降低了妇女的生活质量。这是寻求医疗帮助的常见原因。阴道念珠菌病的临床表现是非特异性的。最常见的诊断方法——阴道分泌物显微镜检查,并不总是能提供足够的信息。在念珠菌病的病原中,白色念珠菌和非白色念珠菌在世界不同地区的流行程度不同。由于抗真菌药物的广泛应用,抗真菌药物的耐药性正在增加。感染RVVK的危险因素有:抗生素治疗、免疫缺陷、胃肠道疾病、避孕药、皮质类固醇、妇女荷尔蒙失调、过敏性疾病。最近的研究表明,念珠菌病的多因素原因,特别是不平衡的阴道菌群组成和遗传易感性。对抗真菌药物的耐药性正在增加,尤其是对临床最常用的氟康唑的耐药性。免疫调节机制的作用反映在阴道免疫活性的降低上。有报道称,在RVVC女性中,toll样受体(TLR)基因发生了变化。此外,交叉素可导致阴道炎症过程延长。目前,甘露糖结合凝集素基因多态性在女性RVVK患者中的相关研究课题。这些变化可能是复发的一个原因。甘露糖结合凝集素的检测是一个有前景的研究领域。科学界对这种病理的研究越来越感兴趣。在出版物中描述了RVVK的诊断,病原体的物种组成,危险因素,激素的影响和遗传易感性。
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引用次数: 0
PROSPECTS FOR THE USE OF ZEOLITE CONTAINING GEOMIN FORTE IN THE TREATMENT OF COVID-19 AND POST COVID-19 CONDITION 含地黄沸石在新型冠状病毒及后冠状病毒治疗中的应用前景
Pub Date : 2022-02-23 DOI: 10.31435/rsglobal_ws/28022022/7781
Marina Giorgobiani, Nana Gorgaslidze, Aliosha Bakuridze, Lasha Bakuridze, Nodar Sulashvili
The aim of the research was to study and analyze peculiarities and prospects for the use of zeolite containing Geomin Forte in the treatment of covid-19 and post covid-19 condition. Antioxidants are substances that the human body constantly needs in order to maintain it in a normal state, which means maintaining the necessary balance between free oxidative radicals and antioxidant forces, the role of which is played by antioxidants.Vitamin E increases the body's nonspecific resistance, and by activating the synthesis of cytokines, tocopherol stimulates its own anti-inflammatory activity. The effect of vitamin E is to stimulate the reproduction of immune cells, systems that need to quickly multiply when they meet the source of a possible disease. In the body, this process is called mitogenesis.The pharmacodynamic effects of tocopherol are synergistic when combined with vitamins C and A. Retinol provides formation of immune (protective) cells, lining respiratory tract and gastrointestinal tract, serving as a natural barrier to infection. Medicine will enhance possibilities of adaptation of the organism to the changed environment, because, in many cases, it is very difficult to protect the population from the impact of the negative factor (including ionizing radiation, natural disasters, etc.) According the study results “Geomin Forte” can be used during intoxications (used as the best sorbent for food, infectious, occupational intoxications, chronic metals and chronic exposure to radiation). As well as when the functional state of the immune system is impaired and fatigue and as an adjunct for allergic diseases. The mineral zeolite (clinoptilolite), the 500 mg activated clinoptilolite "Geomin Forte" developed by us is characterized by antioxidant action. Unlike the conventional antioxidants, it stimulates the body's endogenous antioxidant system and is a direct-acting oxidoreductive agent. Its activated natural mineral zeolite (clinoptilolite) acts directly on the cell membrane as a surface-active donor of electrons.With its oxidizing effect, "Geomin Forte" is 200 times more than vitamins C and E. Used in combination with antioxidant therapy in the context of standard treatment for the following diseases: Diabetes mellitus, accelerated aging process; alzheimer's disease; parkinson's disease; endocrine pathologies; atherosclerosis and ischemic heart disease, hypertensive disease, stroke, rheumatism.
本研究的目的是研究和分析含Geomin Forte沸石在治疗covid-19和covid-19后病情中的特点和前景。抗氧化剂是人体不断需要的物质,以维持其处于正常状态,这意味着维持自由基和抗氧化力量之间的必要平衡,其中的作用是抗氧化剂。维生素E增加了身体的非特异性抵抗力,通过激活细胞因子的合成,生育酚刺激了自身的抗炎活性。维生素E的作用是刺激免疫细胞的繁殖,当免疫系统遇到可能的疾病源时,它们需要迅速繁殖。在体内,这个过程被称为有丝分裂。当与维生素C和a结合时,生育酚的药效学作用是协同的。视黄醇提供免疫(保护性)细胞的形成,覆盖呼吸道和胃肠道,作为感染的天然屏障。医学将增强生物体适应变化环境的可能性,因为在许多情况下,很难保护人群免受负面因素(包括电离辐射、自然灾害等)的影响。根据研究结果,“Geomin Forte”可以在中毒期间使用(作为食物、感染性、职业性中毒、慢性金属和慢性辐射暴露的最佳吸附剂)。以及当免疫系统的功能状态受损和疲劳时,作为过敏性疾病的辅助物。矿物沸石(斜发沸石),我们研制的500 mg活化斜发沸石“Geomin Forte”具有抗氧化作用。与传统的抗氧化剂不同,它刺激人体的内源性抗氧化系统,是一种直接作用的氧化剂。其活化的天然矿物沸石(斜发沸石)直接作用于细胞膜上,作为表面活性电子供体。“Geomin Forte”具有氧化作用,是维生素C和e的200倍以上。在标准治疗的背景下,与抗氧化疗法联合使用,用于以下疾病:糖尿病,加速衰老过程;阿尔茨海默病;帕金森病;内分泌疾病;动脉粥样硬化、缺血性心脏病、高血压、中风、风湿病。
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引用次数: 0
RELIABILITY OF VEHICLE VEHICLES AT THE STAGE OF PREPARATION 车辆在准备阶段的可靠性
Pub Date : 2022-02-23 DOI: 10.31435/rsglobal_ws/28022022/7773
Dmytrychenko M. F., Богданов І. М
The reduction of the duration of running-in is most strongly influenced by the speed-power and technological factors. It was experimentally established that at specific loads of 0.15 – 3 MPa and tribopair velocities of 6 – 40 m/min (0.1 - 0.66 m/sec) and methods of surface hardening and surface hardening, nitrocementation and ion-plasma thermocyclic nitriding, a combination of speed, power and technological factors can reduce the running-in process by 1.5 - 2 times.A mathematical model has been developed that combines the components of these factors for the running-in process in relation to the reduction of the latter.The stand for experimental research of the tribotechnical system, which consists of an automatic gearbox with a magnetic brake, a power supply, a control panel and a PC, has been upgraded. The firmware is written in the Python programming language.For further research in the chosen direction, the application of wear-resistant coatings with a thickness of 3 … 10 μm by PVD methods containing nitrides and carbides is promising.
磨合时间的缩短受转速-功率和工艺因素的影响最大。实验结果表明,在比载荷为0.15 ~ 3mpa、摩擦副速度为6 ~ 40m /min (0.1 ~ 0.66 m/sec)的条件下,采用表面硬化、表面硬化、氮化和离子等离子体热循环氮化等方法,速度、功率和工艺因素综合作用可使磨合过程减少1.5 ~ 2倍。已经开发了一个数学模型,该模型将磨合过程中这些因素的组成部分与后者的减少相结合。由带磁制动器的自动变速箱、电源、控制面板和PC组成的摩擦技术系统实验研究台进行了升级。固件是用Python编程语言编写的。在该方向的进一步研究中,采用含氮化物和碳化物的PVD方法制备厚度为3…10 μm的耐磨涂层是很有前途的。
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引用次数: 0
FEATURES OF THE CLINIC AND DIAGNOSIS OF CROHN'S DISEASE IN CHILDREN AT THE PRESENT STAGE 现阶段儿童克罗恩病的临床特点及诊断
Pub Date : 2022-02-22 DOI: 10.31435/rsglobal_ws/28022022/7779
Denisova M. F., Chernega N.V., Muzika N.N., Bukulova N.Y., Archakova T.N., Reminnaia N.T., Doroshenko O.A.
Based on a retrospective analysis of case histories, the article presents modern data on the features of the clinical course of Crohn's disease in childhood, laboratory, endoscopic and morphological markers of the disease. The symptomatology of Crohn's disease is described in the onset and in the period of the developed clinical picture, depending on the localization of the inflammatory process.
在回顾性分析病例史的基础上,本文介绍了儿童克罗恩病的临床病程特点、实验室、内镜和形态学指标的现代资料。克罗恩病的症状描述在发病和在发展的临床图片期间,取决于局部的炎症过程。
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引用次数: 0
POLYPHENOL COMPOSITION OF THE FRUIT AND STEM OF ELDERFLOWER WILD-GROWING IN GEORGIA 格鲁吉亚野生接骨木花果实和茎的多酚成分
Pub Date : 2022-02-22 DOI: 10.31435/rsglobal_ws/28022022/7782
Gabidzashvili Manana, Guleishvili Nino, Inga Bochoidze
Extending the range of medicinal products produced from plant raw materials and great interest in herbal medicine are totally linked to the availability of plant raw materials, minor toxicity and side effects. The use of medicinal plant raw materials as a source of valuable biologically active substances in the pharmaceutical and food industries is relevant.The aim of the study was to quantify and evaluate antioxidant activity of biologically active compounds (total phenols, anthocyanins) in the fruit and stem of elderflower (Sambucis nigra) and fruits of Caucasian bilberry (Vaccinium artostaphyion) wild-growing in Georgia.As raw material under study, we used wild-growing elderflower fruit with the fruit-bearing stem and bilberry fruits collected in August 2020 in the mountainous region of Georgia (Racha-Lechkhumi) in the phase of full ripeness.It has been confirmed that the elderflower’s fruit stems, as well as the fruit of elderflower anise and bilberry are rich in: phenolic compounds (elderflower’s fruit -13.8 mg/g, stem - 9.2 mg/g; bilberry fruit - 24.9 mg/g); anthocyanins (elderflower’s fruit - 1.4 mg / g, stem - 3.68 mg/g; bilberry fruit - 18.03 mg /g); they are characterized by high antioxidant activity (elderflower’s fruit - 48.2%, stem - 40.5%; bilberry fruit - 60.3%). Based on the results obtained, the fruits of bilberry and elderflower can be considered to be a cheap alternative source of natural antioxidants for the pharmaceutical, cosmetic and food industries.
从植物原料生产的药品范围的扩大和对草药的极大兴趣完全与植物原料的可用性、毒性和副作用小有关。药用植物原料在制药和食品工业中作为有价值的生物活性物质的来源是相关的。本研究的目的是量化和评价格鲁吉亚野生接骨木花(Sambucis nigra)和高加索越橘(Vaccinium artostaphyion)果实和茎中的生物活性化合物(总酚、花青素)的抗氧化活性。作为研究的原料,我们使用了2020年8月在格鲁吉亚山区(Racha-Lechkhumi)采集的成熟的野生接骨木花果实和结果的蔓越莓果实。经证实,接骨木花的果茎,以及接骨木花八角和越桔的果实都含有丰富的酚类化合物(接骨木花的果实-13.8 mg/g,茎- 9.2 mg/g;越橘果- 24.9毫克/克);花青素(接骨木果实- 1.4毫克/克,茎- 3.68毫克/克;越橘果- 18.03毫克/克);它们的特点是抗氧化活性高(接骨木花果实- 48.2%,茎- 40.5%;越橘果- 60.3%)。根据所获得的结果,越桔和接骨木花的果实可以被认为是一种廉价的天然抗氧化剂的替代来源,用于制药,化妆品和食品工业。
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引用次数: 1
RESEARCH OF THE PULSE PARAMETERS OF A DEFORMATION WAVE AT SURFACE-PLASTIC STRENGTHENING 表面塑性强化中变形波脉冲参数的研究
Pub Date : 2022-02-22 DOI: 10.31435/rsglobal_ws/28022022/7768
Kostyuk S. A., Kosiyuk M. M., Tkachuk V. P., Luzhanskiy V. I., Kostyuk М. A.
The article considers the issue of increasing the efficiency of shock energy and recording equipment for the study of the parameters of the deformation wave pulse. The review of the last researches and publications is carried out and perspective directions at designing of the special measuring equipment are established. A method is proposed and an experimental-measuring complex for the study of the momentum parameters in the deformation zone under different initial conditions is developed. The study of the parameters, of the shock pulse and micro hardness, of the strengthened material in the deformation zone using different versions, of the impact systems. It is established that when using a shock system with a step-shaped striker, the shock wave is characterized by a complex shape of the pulse. To assess the reliability of the obtained results, a test problem was solved in the environment of the Abaqus software package. When designing new technological processes of strengthening, the results of experimental studies such as the impact system and the parameters and modes of the processing process are of particular importance. It is established that the best result is shown by shock systems, which allow forming a prolonged shock pulse.
本文考虑了提高冲击能量效率和变形波脉冲参数研究的记录设备问题。对以往的研究和文献进行了回顾,提出了专用测量设备设计的展望方向。提出了一种研究不同初始条件下变形区动量参数的方法和实验测量装置。采用不同版本的冲击系统对变形区强化材料的冲击脉冲和显微硬度参数进行了研究。研究结果表明,在采用阶梯形冲击器的冲击系统中,冲击波具有复杂的脉冲形状。为了评估所得结果的可靠性,在Abaqus软件包环境下解决了一个测试问题。在设计新的强化工艺过程时,冲击系统等实验研究的结果以及加工过程的参数和模式尤为重要。结果表明,允许形成长时间冲击脉冲的冲击系统效果最好。
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引用次数: 0
THE INCIDENCE OF OSTEOCHONDROSIS IN COMBINATION WITH MALOCCLUSION AMONG STUDENTS OF THE MEDICAL UNIVERSITY 医科大学学生骨软骨病合并错牙合的发病率
Pub Date : 2022-02-21 DOI: 10.31435/rsglobal_ws/28022022/7778
Volynets L. N., Volynets V. N., Vovk V. V.
Relevance. The prevalence of posture defects, according to various researchers, is from 0.6% to 78%. The disruptions in the posture biomechanics leads to excessive stress on the main joints of the human body including temporomandibular joint.Objective. The research aimed to study the prevalence of violations of the anatomical and functional system "posture-occlusion" and the structure of early signs of degenerative-dystrophic changes in the spine in medical students.Materials and methods. 130 students of medicals and dental faculties (including 42 men and 88 women) with posture disorders were examined in accordance with special questionnaires developed at the department.The assessment of the functional state of the spinal was carried out using motor tests by the method of Goryana G.A. and complaints of pain according to the 10-point numerical scale of pain "NSP". The malocclusion was assessed according to the method of Khvatov depending on the type of mandibular displacement. Statistical analyses with program IBM SPSS Statistic Base v.22. Results. It has been found that 78 students or 60% did not have restricted and widespread osteochondrosis and pain degree was lower than 5 points.A high prevalence (40%) of combined deformity of posture and displacement of the lower jaw in combination with pain syndrome was established. Along with restricted osteochondrosis 38 (73,08%), distal type of lower jaw displacement was more commonly seen amongst students with postural defects 35 (67,31%). These clinically manifested a pain level of more than 5 points. Signs and symptoms of a combined pathology posture-occlusion were more common among women (37 patients, or 71.15%) than men (15 patients, or 28.85%)
的相关性。根据不同的研究,姿势缺陷的患病率从0.6%到78%不等。体位生物力学的破坏导致包括颞下颌关节在内的人体主要关节承受过大的应力。本研究旨在研究医学生脊柱退行性营养不良变化的解剖和功能系统“姿势-闭塞”的违犯率和早期症状的结构。材料和方法。根据该部门编制的特别问卷,对130名患有姿势障碍的医学院和牙科学院学生(包括42名男性和88名女性)进行了检查。脊髓功能状态评估采用Goryana G.A.方法进行运动测试,疼痛主诉根据疼痛“NSP”10分数值量表进行。根据下颌移位的类型,采用赫瓦托夫法评估错牙合。统计分析程序IBM SPSS Statistic Base v.22。结果。已发现78名学生(60%)没有局限性和广泛性骨软骨病,疼痛程度低于5分。有高患病率(40%)的姿势畸形和下颌移位合并疼痛综合征。与限制性软骨病38(73,08%)一起,下颌远端型移位在有姿势缺陷的学生中更为常见35(67,31%)。这些临床表现为疼痛程度在5分以上。姿势-咬合合并病理的体征和症状在女性(37例,或71.15%)中比男性(15例,或28.85%)更常见。
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引用次数: 0
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Pharmacy World & Science
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