Wide Section Research Articles

Comparison of the Tennis Serve Performance: A Case Study of an Elite Korean Tennis Player

Tennis serve performance is essential because high-quality serves increase the chance of winning points by reducing the opponent’s time to return accurately. This study aimed to compare the displacements of tennis serve between Hyeon Chung’s junior match in 2013 Wimbledon Open - Boys’ singles and himself as a professional player in 2018 to explore the difference according to expertise. Every frame was captured from a high-definition video, and tennis serve displacements were processed using a specialized written MATLAB program. It determined where the tennis serves landed on one of the T, Mid, or Wide sections in the service box. Chung’s serve as a junior player landed in the T section showed 23.95 %, whereas 46.3 % of a professional player’s serve appeared in the T section. More frequent serves to the T section were observed for experienced players, shortening its distance and placing it at the furthest distance from the opponent.

Impact of a health services innovation university program in a major public hospital and health service: a mixed methods evaluation

BackgroundWhile health services and their clinicians might seek to be innovative, finite budgets, increased demands on health services, and ineffective implementation strategies create challenges to sustaining innovation. These challenges can be addressed by building staff capacity to design cost-effective, evidence-based innovations, and selecting appropriate implementation strategies. A bespoke university award qualification and associated program of activities was developed to build the capacity of staff at Australia’s largest health service to implement and evaluate evidence-based practice (EBP): a Graduate Certificate in Health Science majoring in Health Services Innovation. The aim of this study was to establish the health service’s pre-program capacity to implement EBP and to identify preliminary changes in capacity that have occurred as a result of the Health Services Innovation program.MethodsA mixed methods design underpinned by the Consolidated Framework for Implementation Research informed the research design, data collection, and analysis. Data about EBP implementation capacity aligned to the framework constructs were sought through qualitative interviews of university and health service executives, focus groups with students, and a quantitative survey of managers and students. The outcomes measured were knowledge of, attitudes towards, and use of EBP within the health service, as well as changes to practice which students identified had resulted from their participation in the program.ResultsThe Health Services Innovation program has contributed to short-term changes in health service capacity to implement EBP. Participating students have not only increased their individual skills and knowledge, but also changed their EPB culture and practice which has ignited and sustained health service innovations and improvements in the first 18 months of the program. Capacity changes observed across wider sections of the organization include an increase in connections and networks, use of a shared language, and use of robust implementation science methods such as stakeholder analyses.ConclusionThis is a unique study that assessed data from all stakeholders: university and health service executives, students, and their managers. By assembling multiple perspectives, we identified that developing the social capital of the organization through delivering a full suite of capacity-building initiatives was critical to the preliminary success of the program.

Failure analysis and control technology of intersections of large-scale variable cross-section roadways in deep soft rock

In deep underground mining, achieving stable support for roadways along with long service life is critical and the complex geological environment at such depths frequently presents a major challenge. Owing to the coupling action of multiple factors such as deep high stress, adjacent faults, cross-layer design, weak lithology, broken surrounding rock, variable cross-sections, wide sections up to 9.9 m, and clusters of nearby chambers, there was severe deformation and breakdown in the No. 10 intersection of the roadway of large-scale variable cross-section at the − 760 m level in a coal mine. As there are insufficient examples in engineering methods pertaining to the geological environment described above, the numerical calculation model was oversimplified and support theory underdeveloped; therefore, it is imperative to develop an effective support system for the stability and sustenance of deep roadways. In this study, a quantitative analysis of the geological environment of the roadway through field observations, borehole-scoping, and ground stress testing is carried out to establish the FLAC 3D variable cross-section crossing roadway model. This model is combined with the strain softening constitutive (surrounding rock) and Mohr–Coulomb constitutive (other deep rock formations) models to construct a compression arch mechanical model for deep soft rock, based on the quadratic parabolic Mohr criterion. An integrated control technology of bolting and grouting that is mainly composed of a high-strength hollow grouting cable bolt equipped with modified cement grouting materials and a high-elongation cable bolt is developed by analyzing the strengthening properties of the surrounding rock before and after bolting, based on the Heok-Brown criterion. As a result of on-site practice, the following conclusions are drawn: (1) The plastic zone of the roof of the cross roadway is approximately 6 m deep in this environment, the tectonic stress is nearly 30 MPa, and the surrounding rock is severely fractured. (2) The deformation of the roadway progressively increases from small to large cross-sections, almost doubling at the largest cross-section. The plastic zone is concentrated at the top plate and shoulder and decreases progressively from the two sides to the bottom corner. The range of stress concentration at the sides of the intersection roadway close to the passageway is wider and higher. (3) The 7 m-thick reinforced compression arch constructed under the strengthening support scheme has a bearing capacity enhanced by 1.8 to 2.3 times and increase in thickness of the bearing structure by 1.76 times as compared to the original scheme. (4) The increase in the mechanical parameters c and φ of the surrounding rock after anchoring causes a significant increase in σt; the pulling force of the cable bolt beneath the new grouting material is more than twice that of ordinary cement grout, and according to the test, the supporting stress field shows that the 7.24 m surrounding rock is compacted and strengthened in addition to providing a strong foundation for the bolt (cable). On-site monitoring shows that the 60-days convergence is less than 30 mm, indicating that the stability control of the roadway is successful.

Design of Experiment: A Rational and Still Unexplored Approach to Inorganic Materials’ Synthesis

This review was devoted to outlining the use and potential increasing application of the Design of Experiment (DoE) approach to the rational and planned synthesis of inorganic nanomaterials, with a particular focus on polycrystalline nanostructures (metal and alloys, oxides, chalcogenides, halogenides, etc.) produced by sustainable wet chemistry routes based on a multi-parameter experimental landscape. After having contextualised the stringent need for a rational approach to inorganic materials’ synthesis, a concise theoretical background on DoE is provided, focusing on its statistical basis, shortly describing the different sub-methodologies, and outlining the pros and cons of each. In the second part of the review, a wider section is dedicated to the application of DoE to the rational synthesis of different kinds of chemical systems, with a specific focus on inorganic materials.

Long span post-tensioned box girder bridge in Bratislava

The paper describes an analysis and detailed design of the 470 m long D4 motorway bridge in the Slovak capital Bratislava. This bridge is a part of 2 932.50 m long D4 motorway crossing of the Danube River and its surrounding areas. The 210 m long main span of the post-tensioned three span box girder bridge is the longest span which has ever been built in Slovakia. The Ministry of Transportation and Construction of the Slovak Republic requirement was to cross all future rowing tracks by a single span. The depth of the cross section varies from 4.39 m at span to 13.09 m at piers. 35 m wide cross section carries 4-lane carriageway, median, sidewalk and cycling path. The central part of carriageway is built by the balanced cantilever method. The overhangs carrying outer lanes are built by wing traveller machine and supported by the precast struts. The bridge is currently under construction as a part of PPP project of Bratislava ring road (the motorway D4 Bratislava, Jarovce - Bratislava, Ivanka north section).

Flexural Behaviour of Different Stiffener Section Area on Full Height Rectangular Opening Castellated Steel Beam

Vierendeel is one of failure mechanisms in a castellated steel beam. Vierendeel mechanism is the main failure that occurs in a full high rectangular opening castellated beam. Vierendeel decrease castellated flexural capacity compare to the original wide flange section beam. One solution to prevent the vierendeel mechanism is by installing a diagonal stiffener in form of a steel bar on a castellated beam. The research’s purpose is finding the effect of different size of steel bar diameter on the flexural capacity. Four different sizes of steel bar diameter used in this research: 10 mm, 12mm, 16 mm, and 19 mm. Castellated beam flexural capacity is analysed with the method of truss analysis and pushover analysis. This study shows it can be infer that the bigger size of steel bar diameter does not always determine the higher flexural capacity of the castellated beam. Optimum value of the beam’s flexural capacity is affected by the strength of the flange section. The largest increment of flexural capacity between original wide flange compare to the castellated beam is 139.4% by using 16 mm diameter of the diagonal stiffener.

Концепт бедности-богатства как мотивная константа русской литературы

In the wide chronological section and through poetic-semantic analysis of the mane works of the Russian literature (for example, Gogol novel “Overcoat”, “Poor people” of F. M. Dostoevsky, Chehov’s novel “Three years” and Vs. Ivanov’s story “Fertility”) opens the inevitability of social historical motivation of richness-poverty, as well as it’s motif domination in the literature in the sense of the conflict of socially determined and existentially deterministic view of human nature. Primary focus is the wealth of intertextual field of Russian literature, which is caused by motive roll call, creative dialog and writers’ polemics of different generation, which appears as a factor cementing the humanistic orientation of the Russian literature.

Strategies in the analysis of samples of composites for the quantification of porosity by image analysis from optical microscopy

Porosity and voids are a type of defect that may appear during the manufacturing of composite structures. Its possible presence is checked in production parts by different non-destructive techniques based on ultrasonic inspection. It is important to perform this evaluation  considering that a high content of these defects decrease the mechanical properties compared to the original design. In recent years, optical microscopy of composite materials has become a very powerful tool, which is  available for the industry to inspect and look at the internal structure and help to reach conclusions in the field of quality, failure analysis and I+D+I. In addition, the use of automatic scanning techniques of wide cross sections has opened the possibility of quantifying the percentage of porosity/voids, as well as become an alternative to more laborious testing procedures such as acid digestion of the resins. This study contributes to existing test standards within the aeronautical sector, in the sample preparation strategy. For this purpose, samples of epoxy matrices with carbon fibers, both unidirectional and fabric tapes have been analyzed to evaluate the influence of the quality of sample preparation, the stacking sequence and the initial porosity levels, the repeatability of the measurements and the quality of the results. An attempt has been made to correlate the results with standar physical / chemical analysis.

Архивные источники о поддержке Январского восстания 1863-1864 гг. жителями Херсонской губернии Российской империи и последствиях этих событий для освободительного движения

The aim of the article is to shed light on the influence of the January Uprising of 1863-1864 on ethnic Polish territory on the revival of the revolutionary and national liberation movement in the Kherson region. The research methodology is based on the principles of objectivity, historicism, systematics, analytical and synthetic critique of sources. The method of historical reconstruction helped to compile from the scattered facts a holistic view of the history of the liberation struggle of the Ukrainian and Polish peoples against tsarism. Scientific novelty is an attempt to systematize our knowledge of the situation in the Kherson region during and after the suppression of the January Uprising of 1863-1864. The main provisions of the article. From the first days of its existence, Kherson, Mykolayiv, Ochakiv, and Odessa had a multinational character due to the tsarist resettlement policy. The national and religious diversity of the region required meeting the urgent needs of the inhabitants. In 1849, Kherson became the center of the Catholic Diocese, which coveredthe southern European part of the Russian Empire. Throughout the nineteenth century, the national liberation struggle and the defense of their own national interests became the content of the Polishsocio-political movement, a powerful impetus for the protection of national culture, language, traditions and religion. The January Uprising, becoming the most massive of all Polish national liberation uprisings, contributed to the growth of national consciousness among a wider section of the Polish community. Conclusions. According to the author, the January Uprising of 1863-1864 had enough sympathizers in the Kherson province, because unlike the situation in Galicia, the Ukrainian and Polish cultural and educational movements were not competitors in the struggle for their own statehood. Despite the persecution and persecution that intensified after the defeat of the January Uprising, national movements continued to unfold in the following decades. At various stages, the Polish community was in search of new, including non-violent, ways to fight for the restoration of lost statehood. In recent decades, Ukrainian scholars have not paid much attention to the impact of the January Uprising on the southern region of Ukraine.

CULTURE CREATING CAPITAL OF THE POPULATION AS A STRATEGIC RESOURCE FOR GEOCULTURAL BRANDING OF THE CITY

The article presents the author's vision of the goals, content and main forms of cultural and creative activity of the city population. The concept of the city as a "laboratory of culture" was formed in the domestic humanities back in the early 20th century. In parallel with the ideological and theoretical basis in each Russian city, various forms of cultural creative activity of the citizens were formed and have passed a long way of development. Today, the cities have a rich cultural and creative capital, which should be used in the context of the implementation of perspective strategies for socio-economic development and urban branding. The authors believe that urban communities do not need traditional schemes of marketing and branding of places, but new approaches in the promotion of cultural initiatives and useful products. This can be recognized as a geocultural approach, in which the main accents are made on the mechanisms of involvement of wide sections of the urban population in the format of "laboratory" cultural creative work.

Representations of Inter-Faith Couples: “Inevitable Violence” and the Israeli Arab Conflict

In recent years there is a growing concern amongst Israeli Jewish-religious sectors in relation to Jewish-Arab couples whose number is supposedly on the rise. In this article, I will analyze three key representations of such Jewish-Arab couples, all written, published, or performed within Jewish religious sectors. These representations portray the relations of such couples as following an almost identical trajectory, from an optimistic beginning to a tragic and violent end. They expose a Jewish religious explanatory model for these relations and their assumed inevitable failure, which is disguised by non-religious, behavioral, social, and cultural terminology, to convince wider audiences, including secular ones, to avoid them. This model exploits as well as feeds into a wider contemporary representations of Muslim men and culture as violent. At the same time, the model exposes religious assumptions that are prominent also among many secular Israeli Jews, making this discourse appealing to wide sections of Jewish Israeli society.

The power of love: The spiritual foundations of chaplaincy in Catholic universities – A framework for discussion

This article delineates the foundational theological principles upon which a Catholic Higher Education chaplaincy devoted to the spiritual development of staff and students might rest. We claim that this is a key dimension of chaplaincy work. In a (post)modern culture where staff and students exhibit a range of beliefs or none, we offer a broad definition of spirituality not necessarily tied to religion and construct a framework which might appeal to a wide cross section of people attending Catholic Universities. It examines how the insights and guidance of two French Catholic writers, the 16th century priest St. Francis de Sales and the contemporary philosopher Jean-Luc Marion, offer a basis for understanding what constitutes a spiritual approach to life. We suggest that their emphases on the power of love, the heart, God’s glory, imago Dei and gift constitute a ground of hope and stable base from which spiritual progress might take place. We also outline how this template challenges the emphasis on autonomous agency at the centre of much educational discourse at the present time.

Reconstruction of Nineteenth-Century Channel Patterns of Polish Carpathians Rivers from the Galicia and Bucovina Map (1861–1864)

Historical maps are often the only source of information allowing for the regional reconstructions of river channel patterns in the past. In the Polish Carpathians, analyses of historical channel patterns were performed mostly in river reaches scale. In this paper, the Galicia and Bucovina map (1861–1864) (the Second military survey of the Habsburg Empire) was used to reconstruct and map the historical channel patterns of seven rivers from the Polish Carpathians. It was found that, in the nineteenth century, rivers in the western part of the study area (Soła, Skawa, Raba, Dunajec) supported a multi-thread channel pattern, whereas rivers in the eastern part (Wisłoka, San, Wisłok) present a mostly single-thread channel pattern. These differences probably result from the higher relief energy and precipitation, lower proportions of forests in the catchments, and more frequent floods favouring high sediment supply to the fluvial system, and thus the formation of multi-thread reaches in the western part of the study area. At the local scale, the most important factor supporting multi-thread channel pattern development was the availability of gravel sediments in the wide valley floor sections. The formation of anabranching reaches with a single mid-channel form was probably associated with the channel avulsion process. There is no clear evidence linking the change in the channel pattern type with an abrupt change in the river channel slope. This study confirms the usefulness of the second military survey map of the Habsburg Empire for the regional reconstruction of river channel pattern types.

Covid-19: Preventive Measures, Vaccination and Way Forward: A Review

Background: COVID-19 or coronavirus disease 2019 is the unprecedented medical emergency having widespread and multispectral impact. The treatment uncertainty, lack of health infrastructure, lack of available medical professionals, long term implications of COVID-19 are the reasons behind adopting preventive measure over curative measure. Various preventive measures are available which are tried and tested in previous outbreaks. The measures are reliable and ready to use. Also its efficacy has also been proved. Vaccination drive must be accelerated so as to cover wide section of population as soon as possible. Various preventive measures approved by WHO and various local health authorities are being successfully used in order to gain control over the viral spread. Vaccination which is also a preventive measures has been successfully rolled out in various countries.
 Conclusion: Vaccine hesitancy is the burning issue which needs to be addresses otherwise it can derail the vaccination efforts. Importance of preventive measure must be highlights time to time. Recent surge in cases in many countries is attribute to the complacent attitude and lax following of preventive guidelines. Many preventive measures are made not only for COVID-19 but it can also protect us from various other contagious diseases and daily allergies of pollution and dust. Also more innovative mitigation measures should be synthesized in order to contain the viral spread.

Unconventional and Simplified Approach towards Unpaved Roads: Application of Geosynthetics

Abstract: A field trial was carried out to investigate the performance of different unconventional geosynthetic materials in unpaved road construction over soft ground.The test site comprises of 25 m long, by 3 m wide test sections, built on a subgrade of undrained shear strength approximately 45 kPa . One isunreinforced and serves as a control section in the study, three sections includea geotextile, and one includes a geogrid. Each test section incorporated avariable thickness of sandy gravel base course material, between25 and 45 cmthick. They were loaded in sequence by a vehicle of standard axle load.Performance of the test sections was evaluated from measurements of rut depth, base course thickness, base course deformations, geosynthetic strain, and deformed profile of the geosynthetic, with increasing number of vehicle passes.The four geosynthetic materials used exhibited a broad range of stiffness and material properties ,but the general performance of the four reinforced sections was similar on the base course layers. On contrary thinner subgrades showed a significant difference between the geosynthetics Keywords: Geo-synthetic materials, geo-textile, geo-grid, unpaved road.

Formulation and Evaluation of Sustained Release Bilayer Matrix Tablet of Glimepiride and Metformin Hydrochloride

The aim of the present study was to design and evaluate bilayer tablets of metformin hydrochloride as sustained release form for the treatment of Type-II diabetes mellitus. The basic aim of any Bi-layer tablet formulation is to separate physically or chemically incompatible ingredients and to produce repeat action or prolonged action of tablet. They are many drugs for treating type-II diabetes. Sulphonyl urea and biguanides are used commonly by a wide section of patients. Melt granulation process was used for the formulation of sustained comprising metformin layer and wet granulation of immediate comprising layer of glimepiride. The precompression studies like bulk density, tapped density, angle of repose, compressible index and post formulation studies includes weight variation, hardness, thickness, friability and dissolution study. The in-vitro release profile of Glimepiride was dissolved within 45 min, and Metformin Hydrochloride was able to release more than 12 hrs. They all the formulation was optimized formula due to its higher rate of dissolution and collate all other parameters with the official specifications.

Polar bear (Ursus maritimus) use of the Cape Bathurst polynya and flaw lead

The Cape Bathurst polynya and flaw lead (CBP) are major, predictable habitat features with ≤15% ice cover in an otherwise ice-covered Beaufort Sea, and thought to provide hunting opportunities for polar bears (Ursus maritimus Phipps, 1774). We assessed 78 adult (female; with and without cubs) and subadult (male and female) polar bears’ use of the CBP from October to June 2007–2014. The CBP was up to 725 km wide in autumn, ice-covered in winter, and <306 km wide in spring. Seventy-nine percent (n = 62) of the bears used the CBP (≥1 location <2.4 km, or one 4 h step length, from the CBP). Use was higher for solitary adult females and subadult males, which travelled faster with low turning angles along wider sections than females with offspring and subadult females. Bears were closest to the CBP during the spring hyperphagia season. Although a wider CBP did not prevent crossing, bears primarily crossed from the coast towards pack ice at locations 53% narrower than areas not crossed. Bears might avoid crossing when it would require a long-distance swim. The CBP affects polar bear ecology by providing hunting habitat and a corridor that could increase prey encounters but may affect movement.

STRATEGIES TO INCREASE THE TOURIST ATTRACTIVENESS OF THE DECEMBRISTS PARK IN KAMIANKA

The paper presents historical facts about the town of Kamianka in Cherkasy region, famous historical figures that lived in this area and their guests ‒ world famous and respected. The analysis of natural resources and objects in the territory of the Decembrists Park is given, their tourist attractiveness for the organization and carrying out of excursions for tourists and wide sections of the population of Ukraine and visitors from other countries of the world is proved.
 The purpose of the study is to analyze tourist resources and determine a strategy to increase the tourist attractiveness of the Decembrists Park in Kamianka.
 Analytical, statistical methods, comparison methods, etc. were used during the research.
 The article proves that the tourist potential of the Decembrists Park in Kamianka in Cherkasy region meets the requirements for its tourist importance at the global level and motivates to create appropriate programs for its preservation and improvement of tourist potential at the level of local government agencies, the state as a whole, and internationally.
 The article summarizes the arguments on the issue of defining appropriate indicators for the development of a strategy to increase the level of tourist attractiveness of the Decembrist Park in Kamianka.
 According to the results of the research, it was concluded that garden and park landscapes are not only the decoration of the respective territories, but have natural, social, historical and cultural significance for the development of communities; contribute to the promotion of tourist and sightseeing facilities; motivate to preserve the natural, historical and cultural heritage of the region.
 The results of the study can be useful for workers in the field of tourism and services; scientists, teachers, students of higher educational institutions who master the specialty "Tourism", as well as for employees of museums, historical and local lore reserves, cultural and architectural institutions; local governments and state institutions of culture, art, etc.

Education for Sustainable Development in an Unstable World

The widespread simplistic understanding of the concept of sustainable development (SD) and the strategy of education for sustainable development (ESD) is poorly compatible with the increasing natural and social instability of the world. In fact, SD and ESD allow you to quickly navigate in a crisis. The core of the SD concept is a conscious refusal of a person or society from any actions that may complicate life in the future. The ESD strategy is not limited to explaining environmental problems to the population and possible ways to solve them. ESD is designed to contribute to the intellectual development of wide sections of the population – the ability to foresee the consequences of their actions, the ability to independently find solutions to any problems, the skills of advanced self-organization and self-education. ESD is based on an ‘initiative learning model’, and not on the completeness and accuracy of the reproduction of knowledge and skills, which have long been considered central to education. The ability to acquire any knowledge and skills on your own is the main thing in the initiative learning model. Searching for your own solutions, and not memorizing ready-made ones, allows you to get used to acting independently in nonstandard conditions, which is necessary in an unstable world. The transition to the initiative learning has long been brew, The transition to the initiative learning model (ILE) has long been brew and even partially taking place, but too slowly. Initiative learning takes longer than reproductive learning, so it is difficult to fully implement it without changing traditional education. This is the main reason for the failure of attempts to introduce initiative learning model over the centuries. According to the initiative learning model, which is the basis of ESD, education is becoming continuous and lifelong. At the same time, the reduction in the number of compulsory educational sections occurs with the simultaneous expansion of curricula and the freedom of students to choose courses, sections and tasks that they study in depth. The assimilation of knowledge becomes mosaic, but this deficiency is fully compensated by the depth of the acquired knowledge and the desire to independently fill their gaps.

Why do large rivers tend to form multichannel? A field study in the Upper Paraná River

Anastomosed rivers include a diverse group of fluvial forms with multiple and interconnected alluvial channels. They occur in a wide range of climates and reliefs and constitute the typical pattern of the mega rivers (Qm> 17,000 m3s-1). Several authors have assumed that the development of an anabranching formation is the mechanism by which a channel maintains its maximum efficiency. However, this has only been tested by mathematical studies. In this study, we confirm this theory in a 58-km anabranching reach of the Upper Paraná River, through a hydraulic and bathymetric survey of 14 cross-sections. We conclude that where the slope can'tincrease, the channel reduces its w:d ratio, thereby maintaining its efficiency in the wider sections, according to the specific stream power equation (ω=ρgQs/w). The channel width and alluvial plain width are controlled by allochthonous factors (tectonic lineaments and bank composition). Although the nodal sections have the greatestefficiency, we confirmed that flow efficiency is maintained at a constant level of bedload transport and specific stream power along the anabranching reach.