Impact of post- amputation pain syndrome on the results of bone stump formation

Background. To the present day, a high rate of unsatisfactory amputation results still exists. The healing of the bone residual limb, the main support element of the residual limb, is of particular importance. Objective. To study the impact of postamputation pain syndrome on the nature of reparative processes in the bone residual limb. Methods. Three series of experiments were performed on 45 rabbits, 15 in each with mid-third thigh amputation and muscular plasty. In series 1 and 2, a perineural catheter was attached to the sciatic nerve stump during amputation, and mechanical irritation of the nerve was performed daily for 20 minutes in series 1 for 20 days. In series 2, 0.3 ml of 1% lidocaine was injected through the catheter into the circumference of the nerve twice daily for 20 days. Animals of series 3 served as a control. The follow-up periods were 1, 3, 6 months. The study method was histological with infusion of the vessels with ink-gelatin mixture. Results. In series 1, there was a sharp disturbance of the reparative process, which consisted in shape changes, resorption of the cortical diaphyseal plate, stump deformity, absence of bone closure plate formation, and microcirculatory disturbances. In most experiments of the 2nd series, organotypic stumps were formed with normalized microcirculation. In series 3, the results of the residual limb formation were better than in series 1, but worse than in series 2. Conclusion. In the absence of pain syndrome, the bone stump after amputation at the diaphysis level over a period of 1, 3, 6 months retains its cylindrical shape, the structure of the cortical diaphyseal plate, the content of the medullary canal with normal microcirculation, the formation of the bone closure plate, and the completion of the reparative process. The presence of postamputation pain syndrome in the stump distorts the course of the reparative process with the development of pathological remodeling of bone tissue.

Analysis of the terms of usage of non-removable restorations fixed by different glass ionomer cements

Preservation and restoration of dental health of patients is achieved by early detection and treatment of diseases, finding ways of individual prevention, detection and elimination of risk factors for their development. The amount of materials significantly increased used to restore the integrity of teeth and dentition. Among them are dental materials for permanent fixation of indirect non-removable restorations. The material is used to fill the space between the inner surface of the artificial structure and the support element. This helps to mechanically fix the restoration in place to prevent its displacement during chewing. The correct choice of dental material for permanent fixation is an important decision and will determine the long-term success of permanent restorations. The aim of the study is to analyze the durability using non-removable structures of dentures mounted on different glass ionomer cements.

CALCULATION OF THE CONSTRUCTION OF THE SEWERAGE COLLECTOR DURING ITS REPAIR AND RESTORATION IN AN OPEN WAY

A significant part of sewerage networks in cities in the country are reinforced concrete pipelines with a diameter of 500 to 1500 mm, which lie at a small depth. In many cases, they transport wastewater to treatment plants through areas free of traffic and pedestrians. These factors allow you to effectively perform repair and restoration work in an open way. Corrosion processes that occur in the surface part of the collectors lead to the destruction of the basement. The tray part of the collectors, which is constantly filled with wastewater, remains intact. As studies have shown, the preserved tray part can be successfully used as a fixed formwork and support element in the restoration of the basement of the collector. In this case, to create a new basement part of the collector, in place of the destroyed, it is advisable to use a monolithic structure of polymer concrete reinforced with composite reinforcement. These works are performed using pneumatic and inventory formwork. To implement the proposed structure, it is necessary to perform a preliminary calculation of its load-bearing capacity, provided that it rests on the preserved tray part. As a result of this work it is possible to receive economy in comparison with use for repair and restoration works of polyethylene and fiberglass pipes of necessary diameter. During the calculation, a model of the collector was considered, consisting of a preserved tray part of the collector made of concrete class C12 / 15, the upper part of the collector made of concrete class C20 / 25. The calculation proved the possibility of using polymer concrete structures for repair and restoration of sewers in an open way, provided that the new basement rests on the preserved tray part. The proposed open method allows to significantly reduce the cost of repair and restoration work in comparison with the use of polyethylene and fiberglass pipes.

SELECTION OF SHAPE AND DIMENSIONS OF SUPPORT ELEMENT OF PAIRED ORTHOGONAL WALKING MOVER

The paper describes the principle of choosing the optimal size and shape of the supporting element of a walking machine, provided that the maximum possible contact area with the supporting surface is provided for moving on snow or soils with a low bearing capacity. The study was carried out for an orthogonal walking propulsion device, but it can also be used for walking mechanisms of other types.

Study on soil burial biodegradation behaviour on polylactic acid nonwoven material as a replacement for petroleum agricultural plastics

Currently, the issues related to environmental pollution with plastics are a major concern. Agriculture is a vital area forhuman existence, but it generates large amounts of plastic waste. These result from agricultural practices that usesystems and support materials which help facilitate the work of farmers and offer a better yield of production and qualityof crops, in relation to the smaller areas of agricultural land. An alternative can be the use of sustainable textiles thatcan bring multiple benefits to the agricultural sector, including: pollution reduction, biodegradation potential, reducedconsumption of agricultural inputs like pesticides, herbicides, fertilizers and water, high retention potential for water andgood ventilation, increased productivity and quality for the agricultural crops, etc.First of all, this paper discusses the potential use of bio-based and eco-friendly polymers, such as polylactic acid (PLA),in the form of fibres for the production of non-woven textile structures that can be used as a support element inagricultural practices and for the replacement of conventional plastics obtained from oil resources. Secondly, consideringthe advantage of the biodegradation property of this material, the durability and the influence of the location depth in adegrading natural environment such as soil, were the target of experiments to highlight the positive aspects of polylacticacid use in the context of the circular economy. To demonstrate the proposed objectives, different physico-mechanicalanalyses were performed to determine the morphological characteristics of the fibres, the tensile strength, the materialthickness and the possible loss of mass due to microbial activity.

On the Experimental Dynamic Force Performance of a Squeeze Film Damper Supplied Through a Check Valve and Sealed with O-Rings

In rotor-bearing systems, squeeze film dampers (SFDs) assist to reduce vibration amplitudes while traversing a critical speed and also offer a means to suppress rotor instabilities. Along with an elastic support element, SFDs are effective means to isolate a rotor from its casing. O-rings (ORs) reduce leakage and air ingestion while amplifying the viscous damping in configurations with limited physical space. ORs also add a centering stiffness and damping to a SFD. The paper presents experiments to quantify the dynamic forced response of an O-rings sealed ends SFD lubricated with ISO VG2 oil supplied at a low pressure. The lubricant flows into the film land through a mechanical check valve and exits through a single port. Upstream of the check valve, a large plenum filled with oil serves to attenuate dynamic pressure disturbances. The experimental results identify the test rig structure, ORs and SFD force coefficients; namely stiffness, mass and viscous damping. The ORs coefficients are frequency independent and show a sizeable direct stiffness along with a quadrature stiffness demonstrative of material damping. The experimental SFD damping and inertia coefficients are large in physical magnitude; CSFD slightly grows with orbit size whereas MSFD is relatively constant. The added mass (MSFD) is approximately four-fold the bearing cartridge mass. Unsuspectedly, during dynamic load operation, the check valve did allow for lubricant backflow into the plenum. Post-tests verification demonstrates that, under static pressure conditions, the check valve does work since it allows fluid flow in just one direction.

PENERAPAN E-PERFORMANCE DALAM MENINGKATKAN KINERJA PEGAWAI NEGERI SIPIL KOTA SURABAYA

Guna meningkatkan kinerja Pegawai Negeri Sipil dan mewujudkan Good Corporate Governance di Kota Surabaya, Pemerintah Kota Surabaya menciptakan suatu sistem informasi manajemen kinerja berbasis web dan aplikasi yang berguna untuk memonitor kinerja pegawai sekaligus pedoman dalam pemberian besaran uang kinerja PNS, yang dinamakan e-Performance. E-Perfomance diterapkan di Kota Surabaya sejak tahun 2011 melalui Peraturan Walikota Nomor 86 Tahun 2011 tentang petunjuk Teknis Uang Kinerja pada Belanja Langsung yang kini telah diubah ke Peraturan Walikota No. 13 Tahun 2019 tentang Petunjuk Teknis Pemberian Uang Kinerja pada Belanja Langsung kepada PNSD di Lingkungan Pemerintah Kota Surabaya. Tujuan penelitian ini adalah untuk mendeskripsikan penerapan e-Performance dalam meningkatkan kinerja PNS di Kota Surabaya. Penelitian ini merupakan penelitian kepustakaan yang dianalisis menggunakan Teori e-Government yang dikemukakan oleh Harvard JFK School of Government dengan mengkaji tiga elemen, yaitu: Support (political will, infrastruktur, dan sosialisasi), Capacity (SDM dan Sumber Daya Finansial) dan Value. Hasil penelitian ini berdasarkan ketiga elemen tersebut, e-Peformance Surabaya berhasil meningkatkan kinerja Pegawai Negeri Sipil Kota Surabaya. Namun pada elemen Support, ditemukan hambatan seperti keterbatasan sarana prasarana dan sosialisasi internal. Sementara itu pada elemen capacity, masih ditemukan permasalahan terkait kemampuan, pemahaman dan kesadaran pegawai dalam mengoperasikan sistem e-Performance. Untuk elemen value tidak ditemui hambatan di dalamnya. Saran dalam penelitian ini adalah perlunya pemenuhan sarana prasarana pendukung, perlu diadakannya sosialisasi intern yang berkelanjutan dan himbauan kepada pegawai untuk menginput kegiatannya ke dalam sistem. Kata Kunci: e-Performance, kinerja, pegawai In order to improve the performance of Civil Servants and realize Good Corporate Governance in the City of Surabaya, the Surabaya City Government has created a web-based performance management information system and applications that are useful for monitoring employee performance as well as guidelines in granting the amount of PNS performance money, called e-Performance. E-Performance has been implemented in the City of Surabaya since 2011 through Mayor Regulation Number 86 of 2011 concerning Technical Guidelines for Performance Money in Direct Spending which has now been amended to Mayor Regulation No. 13 of 2019 concerning Technical Guidelines for Giving Performance Money in Direct Expenditures to PNSD within the Surabaya City Government. The purpose of this study was to describe the application of e-Performance in improving the performance of civil servants in the city of Surabaya. This research is a literature research that is analyzed using e-Government theory proposed by Harvard JFK School of Government by examining three elements, namely: Support (political will, infrastructure, and outreach), Capacity (HR and Financial Resources) and Value. The results of this study are based on these three elements, e-Performance Surabaya has succeeded in improving the performance of Surabaya City Civil Servants. However, in the Support element, obstacles were found such as limited infrastructure and internal socialization. Meanwhile, in the capacity element, problems are still found related to the ability, understanding and awareness of employees in operating the e-Performance system. For the value element, there are no obstacles in it. Suggestions in this study are the need to fulfill supporting infrastructure, continuous internal socialization and appeals to employees to input their activities into the system. Key Words: e-Performance, performance, employees

A Study Of Certified Diabetes Educators: A Descriptive Exploration Of The Delivery Of Diabetes Self Management Support In Community Based Settings In Ontartio

There has been a recent shift in diabetes care from hospitals to community settings. This exploratory descriptive study used a convenience sample (n=33) recruited from the Canadian Diabetes Association Educator Sections, in Ontario, to examine the extent to which certified diabetes educators (CDEs) perceive the delivery of diabetes self management support (DSMS), in community settings and the supports and barriers that influence DSMS delivery. Overall, CDEs reported delivering DSMS at a level that reflected consistent implementation at the team level, but lacked system wide consistency. The patient support element most consistently delivered was patient involvement in decisions; the organizational element most frequently endorsed was multidisciplinary teams. Patient related factors were the most frequently reported barriers; the most frequently reported support was a multidisciplinary team approach. This is the first study to examine DSMS delivery in community settings, thus these findings serve as a baseline for future comparison.

A Study Of Certified Diabetes Educators: A Descriptive Exploration Of The Delivery Of Diabetes Self Management Support In Community Based Settings In Ontartio

There has been a recent shift in diabetes care from hospitals to community settings. This exploratory descriptive study used a convenience sample (n=33) recruited from the Canadian Diabetes Association Educator Sections, in Ontario, to examine the extent to which certified diabetes educators (CDEs) perceive the delivery of diabetes self management support (DSMS), in community settings and the supports and barriers that influence DSMS delivery. Overall, CDEs reported delivering DSMS at a level that reflected consistent implementation at the team level, but lacked system wide consistency. The patient support element most consistently delivered was patient involvement in decisions; the organizational element most frequently endorsed was multidisciplinary teams. Patient related factors were the most frequently reported barriers; the most frequently reported support was a multidisciplinary team approach. This is the first study to examine DSMS delivery in community settings, thus these findings serve as a baseline for future comparison.