bluuebunny/crossref_metadata_2025 huggingface dataset:
Modeling of Socio-Economic Factors and Trends in the Context of New Pathological Challenges and Digitalization Processes (Based on the Example of the Republic of Uzbekistan)
Authors:   Polotsk State University, Pavlov K. , Asadullina N. ,   Tashkent Institute (branch) of Plekhanov Russian University of Economics
Published: June 2021

In the context of the increased level of uncertainty and variability of the organizational and economic environment, the importance and influence of various kinds of pathologies of a social nature (for example, the COVID-19 pandemic, various color revolutions, etc.), which have significant negative consequences for the functioning of society and its most important structures, has increased. The use of the latest achievements of STP, such as comprehensive digitalization and modeling of the most important factors and trends in social development, can counteract the impact of modern negative challenges. The article analyzes and models some of the most important parameters of the functioning of the Uzbek economy, the results of which can be used in the development of a strategy for action in priority areas of development of the Republic of Uzbekistan. Thus, as a result of the conducted research, it became obvious that the factors of social development and the socio-economic trends that arise as a result of their action can be divided into two large groups: the first should include factors and trends of a negative nature associated with the action of various social pathologies; the second group, on the contrary, can include positive factors and trends, primarily related to the progressive influence of STP, including such an important modern direction as the all-round digitalization of society.
Investigation of Factors of EU Port Competitiveness
Authors:   Azov Maritime Institute National University ", Makarenko M. ,   Odessa Maritime Academy", Prosyanok V. ,   Azov Maritime Institute National University "Odessa Maritime Academy", Shayhatdinov A. ,   Azov Maritime Institute National University "Odessa Maritime Academy"
Published: June 2021

The importance of ports in the European context is proved by studying the various management characteristics and difficulties in developing a common European policy, as well as the measures taken by the EC to improve competition in this area. The main provisions of the Green Paper as a means of increasing competitiveness are considered and its main points are analyzed. The directions of the EU policy on the development of the port industry by regulating the competitive strategies of ports, in order to promote, regulate and ensure port competition at the local, regional and international levels, are considered. Transport is becoming an integral part of the production process, as globalization, ports and the maritime sector are key factors in logistics concepts. The EU's experience has shown that a cost-effective, reliable and competitive port system is of strategic importance for achieving the liberalization of competitive trade. Moreover, to ensure that the role of ports contributes to the success of these principles, the EU is trying to create a single national policy. The main purpose of this policy is to promote the means of managing port financing, competition and improving the state of the port industry. It was emphasized that the EU proposals can be reduced to four main areas: improvement and modernization of port infrastructure and their inclusion in the trans-European transport network; creation of a competitive playing field; promotion of research and development for ports; establishing a dialogue between all partners to address relevant issues. However, the first difficulty with the formation of a unified national policy in the port industry is the difference in the size of ports, capacity, geographical location, management, operation and employment. The main differences between European ports are the result of different cultures and ways of thinking. First of all, the three control theories are similar between the ports under study. Further, the size of the port can be local, national or international. There is a very important similarity between these ports, as they are all international; they serve the same great theory and are the gateway to Europe. Employment is an important factor, as in Europe you can find two part-time or basic wage or permanent jobs. On the other hand, the main differences that can be identified are the way of working and the geographical location. In other words, if the port is an estuary or coastal, it is a natural harbor or a system of closed docks. This factor is one of the main differences between ports, as it provides a comparative advantage in terms of maneuverability. others. These differences are actually one of the reasons why the EC initiated the EU Law, which should apply to ports.
Cluster Model of Seed Production of Domestic Potato Varieties on a Virus-Free Basis
Authors:   LLC ", Volodin S. ,   Institute of Innovative Bioeconomics"
Published: June 2021

The article analyzes the production of potatoes in Ukraine in 2005-2019 in all categories of farms, agricultural enterprises, farms, households. The problems of the present in the development of the potato industry have been clarified. It is proposed to create an integrated scientific and innovative system of production and sale of domestic potato seeds on the basis of partnership between science and business, in particular the creation of the Innovation Cluster «Ukrainian Potatoes». The tasks of the Innovation Cluster «Ukrainian Potato» are considered. The basic positions of the project «Ukrainian potato» are given. The stages of development of the business infrastructure of the Ukrainian Potato cluster are studied. Attention is paid to the research and production network of the project and the stages of project implementation of the Innovation Cluster «Ukrainian Potato». Further directions of research of this theme are offered.
Substantiation of Expediency of Creation of Transport and Logistics Cluster in the Carpathian Economic Region
Authors:   Lviv Polytechnic National University, Pushak H. , Trushkina N. ,   Institute of Industrial Economics of the NAS of Ukraine
Published: June 2021

It is proved that for balanced sustainable development of the regional transport and logistics system it is expedient to develop a cluster model of organization of logistics activities in the economic region, which means a conceptual approach that involves the creation and operation of transport and logistics cluster. The cluster model includes the following blocks: a single set of processes of logistics activities; members of the transport and logistics cluster that organize these processes; algorithm of cluster formation and functioning; mechanisms for forming partnerships of cluster members; financial support for cluster development; achieving a synergetic (economic, social and environmental) effect from the sustainable development of the transport and logistics cluster on the basis of stimulating the region. In order to form a transport and logistics cluster in the Carpathian economic region, it is necessary to create appropriate institutional conditions, which are: improving the legislative and regulatory framework for the development of the transport sector and the organization of logistics activities, taking into account the regional component; development of the Strategy of complex development of the regional transport and logistics system on the basis of modernization of the transport infrastructure; development and implementation of organizational and economic mechanism for managing the development of the transport and logistics system of the economic region using the tools of "green" logistics and digital technologies; Improving the mechanism of financial support for the development of transport and logistics system through the use of financial instruments such as venture capital, crowdfunding, international public-private partnership based on private investment, credit institutions, foreign investment resources, grants from international financial organizations, investment funds.
Rationale for the Role and Importance of Short-Haul Shipping for Port Development
Authors:   Azov Maritime Institute National University ", Gusakov S. ,   Odessa Maritime Academy", Kravchenko A. ,   Azov Maritime Institute National University "Odessa Maritime Academy"
Published: June 2021

Short Sea Shipping involves the transport of goods and passengers using watercraft over a limited distance and without crossing the ocean. A direct competitor to land transport, it uses ports and inland waterways to complement traditional transport systems to increase capacity, increase flexibility and achieve sustainable transport mobility. The short haul category does not have an official and universally recognized definition. However, several attempts have been made to establish its boundaries and come up with a definition that accurately reflects the content. The definition given by the European Commission: "The movement of goods and passengers by sea between ports located geographically in Europe, or between ports located in non-European countries with coasts on closed seas and bordering Europe" is widely used today. A deep understanding of the serious socio-economic and environmental impacts of road transport operations compels policymakers at different institutional levels (e.g. local, national and regional) to act accordingly and introduce a range of targeted policy frameworks, strategies and interventions to support the broader development and exploitation of others. modes of transport (i.e. rail, inland waterways), thus helping to unload road networks, thus realizing significant improvements in terms of air quality, road safety, and so on. Taking into account the geographic characteristics of the main trading regions of the world, as well as the priorities set by the relevant government authorities, and funds (both public and private) allocated for infrastructure projects, railways, short-distance shipping and inland waterways were considered with a view to establishing additional opportunities to ensure dynamic growth. So, sea transportation over short distances competes with land transport. First of all, they have a geographic advantage, the sea offers more route options and more flexibility for ships. Another benefit concerns economies of scale. Environmental sustainability is the main benefit of short sea shipping. It also has a lower carbon footprint per tonnekilometer than trucks. In addition, maritime transport offers various social benefits. Unloading of road networks is carried out by transferring traffic from land to sea. Ensuring the further development of ports provides for a more detailed study of such a segment as short-distance sea transportation.
Competitiveness and Strategic Positioning of Seaports
Authors:   Azov Maritime Institute National University ", Ryabchuk V. ,   Odessa Maritime Academy", Kalinina G. ,   Azov Maritime Institute National University "Odessa Maritime Academy"
Published: June 2021

Thanks to the development of world trade, more than two-thirds of the world's total cargo depends on maritime transport. Maritime transport and ports play an important role in the sustainable development of the global economy. Currently, as international transshipment ports, ports are evolving from conventional retail terminals to containerized distribution logistics centers (hubs). Undoubtedly, the shipping and port industries are directly related to the global economy. The ports are the main carriers and information exchangers with the outer regions. In addition, the port economy has become an important lever for promoting regional economic development. In order to ensure a port's competitive position within a certain range, many port administrations and stakeholders have measured competition performance based on microeconomic concepts such as market shares and annual growth rates among competitors. However, in past years it can be seen that the growing attention to the social responsibility of the port, that is, the impact of port operations and activities on the environment, has often attracted public attention. The port is also facing great pressure on the results of its social responsibility. Such a satisfactory capacity or growth rate is insufficient to measure the competitive position of ports in today's environment. Ports or interested parties may have additional charges for environmental impacts, such as emissions, water pollution, noise, etc. to achieve sustainable port development. Ports with excellent environmental performance and high social reputation are likely to have a competitive advantage. There are various methods for determining their competitiveness, especially for container ports. As a rule, a lot of literature indicates that the key factors affecting the competitiveness of a port, such as port capacity, productivity, quality of service, accessibility of inland areas and reputation. However, there is also evidence that the public is increasingly focusing on environmental issues of the port, which leads to much more negative externalities for society. One of the major environmental impacts is exhaust gas emissions (air pollution), which are mainly caused by vehicles in the port industry. The development trends of the port and shipping industries are associated with the spread of globalization and containerization. Accordingly, the competitive environment is becoming increasingly tough for all participants in the maritime transport market. In such conditions, in order to be competitive, it is necessary to reduce negative externalities and pay more attention to environmental protection. Environmental issues directly affect both global economic growth and the competitiveness of ports.
Features of Strategic Management of Industrial Enterprises
Authors:   SHEI Donbass State Engineering Academy, Fomichenko I. , Belikova O. ,   SHEI Donbass State Engineering Academy, Barkova S. ,   SHEI Donbass State Engineering Academy, Bashtovoy V. ,   SHEI Donbass State Engineering Academy
Published: June 2021

The main aspects of strategic management of industrial enterprises development in modern economic conditions are considered in the article. It is noted that approaches to managing the development of industrial enterprises should be based on a qualitatively new basis, taking into account the uncertainty of the external environment. It is determined that in crisis conditions it is extremely important for the company to choose a strategy that would primarily provide social guarantees for staff, which is why it is advisable that the actions of each unit and employee firmly meet the needs of the company at this time; it is important to understand the impact of daily actions on comp­liance with plans and the overall solution of enterprise problems. Features of formation of strategic management at the industrial enterprise are investigated. It is determined that through a complex system combination of strategies of all strategic economic units of the enterprise is the formation of its strategic set. The need to take into account personnel costs in the implementation of strategic management, in particular in the process of forming a strategy for effective management of an industrial enterprise.
RIVAROXABAN
Authors: Rees Sharon
Published: June 2021

In this column, Sharon Rees aims to refresh knowledge and interest in some of the commonly used drugs in a series of tweets. This month she is talking about #rivaroxaban
Oracy education must be a priority for schools
Authors: Henshaw Pete
Published: June 2021

The speaking skills of some pupils have been affected by national lockdowns, especially among our Pupil Premium cohort. Campaigners are urging government and schools to put oracy at the heart of recovery
Exam grading 2021: The challenges ahead
Authors: Middlehurst Tom
Published: June 2021

Several trends are emerging from the concerns that school leaders have about this summer's exam grading process. Tom Middlehurst looks at the main sticking points and offers advice and reassurance for secondary school leaders and teachers
Tackling racism in schools: Three starting points
Authors: Radford Peter
Published: June 2021

How is your school tackling racism? Is it working? How do you know? Ahead of September's inaugural National Schools' Human Rights Conference, Peter Radford looks at three principles that should underpin your school's anti-racism work
Making Every Lesson Count: Six pedagogical principles
Authors: Webb Helen
Published: June 2021

The education book Making Every Lesson Count describes six pedagogical principles – from challenging to modelling to feedback – that can give us a great framework for teaching. Helen Webb offers some ideas and tips for how these principles can work in practice
Tough choices? Navigating the CPD marketplace
Authors: Cunningham Maria
Published: June 2021

With so many experts, partners, consultants and providers, how can school leaders better navigate the CPD marketplace? Maria Cunningham looks at new research into quality-assurance, and its implications for your school's CPD commissioning
Ofsted: Curriculum impact
Authors: Bromley Matt
Published: June 2021

As part of Ofsted's focus on curriculum impact, evaluating the pace of pupil progress, pupil outcomes, and their preparedness for their next steps are vital considerations – as is the ‘performance development’ of teachers. Matt Bromley advises
The three Ms of effective remote learning
Authors: Bromley Matt
Published: June 2021

We hope that national lockdowns are now behind us, but remote teaching and learning will continue for some pupils and groups in the months to come. Drawing on all we have learned, Matt Bromley offers his three principles of effective remote learning
The mental health lead
Authors: Preston Sam
Published: June 2021

The government wants every school to have a designated mental health lead in place by 2025 and has begun to fund training to support this goal. In light of the pandemic's impact, the role could well be a crucial part of recovery. Sam Preston looks at what it will entail
Plant resource uses and losses in a small maroon community in a Colombian Pacific hot spot
Authors: Lima Danielly Vasconcelos Travassos de , Ordóñez Laura Lozada , Cruz Denise Dias da
Published: June 2021

Abstract. de Lima DVT, Ordóñez LL, da Cruz DD. 2021. Plant resource uses and losses in a small maroon community in a Colombian Pacific hot spot. Biodiversitas 22: 3031-3041. The Colombian Pacific is a world biodiversity hotspot, and traditional communities of the region have high cultural diversity, such as the Jovi maroon community, which shows economic and cultural practices rely on regional ecosystem services. This study aimed to conduct an ethnobotanical survey in the Jovi community, specifically focused on the identification of the plants used, the purpose of use, losses in the use of species, the conservation status of the species, and if there are differences regarding plant use knowledge between genres. Participant observation was conducted associated with interviews for data collection with 26 local experts. The Jovi community uses a wide variety of plants (135 species belonging to 57 families). Cultivated species showed the highest use values in the community. The most important uses were medicinal, food, and technological, respectively. Use losses were verified, mainly, for the species used as food. Two species deserve attention, i.e. Minquartia guianensis (Near Threatened - IUCN), and Pelliciera rhizophorae (Vulnerable - IUCN), both obtained by extractivism and have timber use. There was no difference in knowledge between men and women. Cultural changes may be delimiting changes in the use of plant species in the community.
Assessment of factual measurement times for chlorophyll-a fluorescence in rubber (Hevea brasiliensis) clones
Authors: Cahyo Andi Nur , Murti Rudi Hari , Putra Eka Tarwaca Susila , Nuringtyas Tri Rini , Fabre Denis , Montoro Pascal
Published: June 2021

Abstract. Cahyo AN, Murti RH, Putra ETS, Nuringtyas TR, Fabre D, Montoro P. 2021. Assessment of factual measurement times for chlorophyll-a fluorescence in rubber (Hevea brasiliensis) clones. Biodiversitas 22: 3470-3477. Chlorophyll-a fluorescence is widely used to determine the stress tolerance levels of some plant species. Measurement of chlorophyll-a fluorescence is accurate if the duration of dark adaptation is well defined and optimal Fv/Fm (maximum quantum yield of primary photochemistry/photosynthesis) is achieved. Leaf clips are usually used to darken the leaf prior to measurement. This procedure takes time and limits the use of chlorophyll-a fluorescence parameter in high-throughput screening of genetic populations. This study aimed to determine the most suitable time for the chlorophyll-a fluorescence measurement. This study was carried out on several rubbers (Hevea brasiliensis Müll. Arg.) clones and consisted of two steps. The first step was conducting the measurements at five different times at night: at 7.30, 8.00, 8.30, 9.00, and 9.30 p.m. The second step was conducting the measurements at daytime, which consisted of two factors. The first factor was the measurement time, which was divided into two categories: 7.30 a.m. and 1.30 p.m. The second factor was the duration of dark adaptation using leaf clips, which consisted of nine levels: 0, 15, 30, 45, 60, 75, 90, 105, and 120 min. Additional treatment (measurement at 9.00 p.m. without using leaf clips to darken the leaf) was used as a control. This study revealed that a dark adaptation time of two hours after the sunset was long enough for the rubber leaves chlorophyll-a fluorescence transient to be measured without using leaf clips for the dark adaptation. If the measurement is conducted by 7.30 a.m., the clone RRIM 600, GT1, and SP 217 required 15 min of dark adaptation, whereas clone PB 260 required 60 min of dark adaptation. Furthermore, measurement of chlorophyll-a fluorescence in the afternoon is not recommended due to the potentially high microclimate fluctuation.
Optimized 3D printing of THz waveguides with cyclic olefin copolymer
Authors: Mavrona Elena , Graf Jil , Hack Erwin , Zolliker Peter
Published: June 2021

There is a need for low-cost and easily accessible optical devices for THz applications. THz devices can be manufactured rapidly with 3D printing while using THz transparent materials. In this work, we optimized the parameters for high-resolution 3D printing of a THz transparent filament, cyclic olefin copolymer (TOPAS), in order to 3D print high quality pipe THz waveguides. We used nozzles with diameters between 0.15 mm and 0.80 mm in a wide range of temperatures and speeds. We show that for high quality TOPAS 3D printing, the most important parameters are the bed and the printing temperature. The optimized 3D printing parameters for the nozzle diameter 0.15 mm were used for THz pipe waveguides with diameters in the range of 5-9 mm and cladding thickness of 0.3-0.8 mm. Transmission measurements corroborated the results predicted by simulations for core mode frequencies in the range of 250-900 GHz.
Assessment of Pain Perception in Paediatric Patients on Application of Cooled and Uncooled Topical Anaesthetic Gel before Infiltration Anaesthesia - A Pilot Study
Authors: P Prathyusha , Adyanthaya Amith , Raheema Marium , Nair Swetha S. , Sivaraman Aparna , K Risana , K Nazreen Ayub , Aloysius Reshma
Published: June 2021

BACKGROUND Topical anaesthesia is fundamental in enhancing pain control during the process of dental injections. The study compared the effect of cooled and uncooled topical anaesthetic gel before infiltration anaesthesia in assessing pain perception in paediatric patients undergoing dental treatment procedures. METHODS This is a split-mouth study where 16 children aged between 8 and 10 years who required bilateral local anaesthesia administration for various dental procedures were selected. Before infiltration anaesthesia, topical anaesthetic gel cooled to 40 C was applied on one side in the first visit followed by application of uncooled gel on the contralateral side in the subsequent visit. The patients were asked to individually rate their pain experience on each side using the Wong-Baker Faces Pain Rating Scale (WB-FPRS). Anxiety was assessed using pulse oximeter and FLACC scale (face, legs, activity, cry, and consolability). Data was analysed statistically using the paired ‘t’-test and a P value less than or equal to 0.05 was considered as statistically significant. RESULTS Patients reported less pain on Wong-Baker Faces Pain Rating Scale by using cooled topical anaesthetic gel. Discomfort and anxiety levels were also seen to be low when assessed using pulse oximeter and FLACC Scale for the same group (P < 0.05). CONCLUSIONS Cooling the soft tissue site with anaesthetic gel helped reduce pain perception during infiltration in children and was seen to be a more feasible technique. Hence this technique can be used as a successful adjunct to the local anaesthesia administration prior to dental procedures. KEY WORDS Anaesthesia, Cooling, Topical Gel, Injection, Pain
A Cross-Sectional Study on the Mental Health of Professionals Working from Home in Tamilnadu, India, during the Covid-19 Pandemic
Authors: P. Bijulakshmi
Published: June 2021

BACKGROUND The Covid pandemic situation has brought drastic changes in workplace environments around the world with many organizations shifting to work from home (WFH) models. So, an online survey was conducted in India among professionals working from home to evaluate their mental health and determine as to how they were coping with working from home during this pandemic. METHODS An online survey was conducted with an invitation to professionals working from home to participate in the study. The survey questionnaire contained statements regarding their level of comfort in working from home and the statements from the Depression, Anxiety and Stress Scale (DASS - 21) and the acceptance and action questionnaire (AAQ - II). A total of 912 responses were statistically analysed. RESULTS Results showed that 63.9 % of the participants were experiencing various levels of stress, with 8.6 % having severe levels of stress; while 62.9 % had some level of anxiety, 6.9 % of the participants had severe levels of anxiety. 31 % of the respondents had some level of depression while 1.2 % had levels indicative of severe depression. Only 40.5 % of the respondents reported being comfortable working from home and 55 % of the people reported they could not work without disturbances at home. The nature of job, age, gender and parental status all influenced the levels of stress, anxiety and depression while WFH. CONCLUSIONS People who are working from home are stressed, anxious and have various levels of depression as clearly evidenced in this study. KEY WORDS Working from Home, Covid 19 Pandemic, Stress, Anxiety and Depression, Experiential Avoidance
Immunization Status of Health Care Personnel Post Hepatitis B Vaccination in a Tertiary Care Centre in Central India
Authors: Sahu Gaurav , Mudey Gargi , Khapre Meenakshi , Joshi Dipali , Mudey Abhay
Published: June 2021

BACKGROUND Health care personnel (HCP) are the most exposed sector to contract Hepatitis B from infected patients, and vaccination is a key modality to prevent it. We wanted to evaluate the immune status of health care workers (HCWs) post vaccination and bring to light the potential risk factors that may be responsible for low Anti-HBs antibody titres post vaccination. METHODS A cross-sectional study was conducted at Acharya Vinoba Bhave Rural Hospital (AVBRH), Sawangi, with 171 HCP who completed the hepatitis B vaccination. Serum Anti-HBs levels were assessed using ELISA. RESULTS Of 171 HCP, 30 (17.54 %) were males and 141 (82.46 %) were females. The mean age of the study population was 35 years. 73.68 % of the total HCP study population showed antibody titres above the predefined protective threshold. The only risk factor significantly associated with serological response was chronic illness. There was no significant association of serological response to time since last dose (P = 0.3), BMI (P = 0.67), percutaneous / mucocutaneous exposure (P = 0.7) and post vaccination period (P = 0.246). CONCLUSIONS Hospital administration should promote testing of Anti-HBs levels in all HCWs 1 - 2 months’ post Hepatitis B vaccination so that necessary precautions can be taken, and revaccination with counselling should be strictly followed. KEY WORDS Health Care Personnel (HCP), Risk Factors, Anti-HBs Levels, Immunization Status
Vitamin B12 Deficit Status among Type 2 Diabetes Mellitus Patients - A Review
Authors: Butola Lata Kanyal , Jha Roshan Kumar , Ambad Ranjit , Kanyal Deepika , Jankar Jayshri
Published: June 2021

Several studies have confirmed the increased incidence of vitamin B12 deficiency in patients with type 2 diabetes mellitus. Metformin is currently the most commonly used anti-diabetic drug, metformin being prescribed as first-line therapy for patients with type 2 diabetes mellitus (T2DM) worldwide. Other disorders including insulin resistance, such as polycystic ovary syndrome (PCOS), can also be treated with metformin. Metformin has positive effects on metabolism, weight loss, and vascular defence of carbohydrates, but it also has significant side effects. Patients on long-term treatment with metformin, for example, have been shown to be at risk of anemia. This may be because of a decrease in metformin-related vitamin B12. It is estimated that 30 percent of patients undergoing long-term metformin treatment have experienced vitamin B12 malabsorption, with a 14 percent to 30 percent reduction in serum vitamin B12 concentration. A critical nutrient for wellbeing is vitamin B12. It plays a significant role in the functioning and the production of red blood cells in the brain and nervous system. In addition to anemia, a deficiency of vitamin B12 may increase the severity of peripheral neuropathy in T2DM patients. In addition, since vitamin B12 is involved in the most critical homocysteine (Hcy) metabolism pathway, a decrease in vitamin B12 will increase plasma concentrations of Hcy, which in patients with T2DM and PCOS is closely linked to cardiovascular disease. Evaluating serum vitamin B12 levels will also provide an early diagnosis of the status of the deficiency. This will offer an incentive for harm caused by routine screening and early detection to be reversed. KEY WORDS Vitamin B12, Metformin, Diabetes Mellitus, Glycated Hb
Split It! Let’s Break That Stress - A Case Report
Authors: Patil Abhijit , Sethi Tanya , Doddamani Mallikarjun H. , Shah Rutvi , Patil Anandkumar G. , Vora Ankeet , Dave Twisha , Joshi Divya
Published: June 2021

Fixed prosthodontics is a zestful and progressing branch because of the numerous advantages that it has over removable prosthesis. The oral cavity for each scenario has its own complications and hence every individual case has its own approach keeping in mind the comfort, function, and aesthetics of the patient. In some cases, we come across an edentulous space on both the sides, creating a lone free-standing tooth. This clinical scenario with a pier abutment needs to be taken into consideration during restoration of the arch as the masticatory forces applied on the abutment teeth at one end of fixed partial denture (FPD) can result in the pier abutment acting as a fulcrum resulting in ultimate failure of the FPD and trauma to the periodontium. To overcome this complication, use of non-rigid connectors is advised. Many innovative clinical designs with modifications to the conventional bridges have been proposed over the years to undertake such a scenario most diligently. Selection of the right type of connector is imperative for the success while undertaking such a case. This era is of digital dentistry; hence, an innovative, time saving, and cost-effective way of fabricating non-rigid connector using Exocad software and 3D printing of split pontic FPD is presented in this case report.
Managing Ambivalent Emotions in Family Businesses: Governance Mechanisms for the Family, Business, and Ownership Systems
Authors: Randerson Kathleen , Radu-Lefebvre Miruna
Published: June 2021

Members of business families experience ambivalent emotions that stem from paradoxical tensions inherent to family business, namely the overlapping of three systems: the family, the firm, and ownership. In this essay, we shed light on how governance mechanisms can frame the different roles a family member can play in the family, business, and ownership systems, making role conflict and the subsequent emotional ambivalence a source of creativity rather than of emotional dissonance. These governance mechanisms may also contribute to reducing risks for interpersonal conflict as well as provide rules for conflict resolution. Building on the typology distinguishing among Enmeshed Family Business (EFB), Balanced Family Business (BFB), and Disengaged Family Business (DFB), we suggest governance mechanisms to support emotion management within each archetype at the individual, family and firm levels.
The outcome of intra-cytoplasmic sperm injection (ICSI): do the sperm concentration and motility matter?
Authors: Chua Ai Chen , Abdul Karim Abdul Kadir , Tan Albert Chao Chiet , Abu Muhammad Azrai , Ahmad Mohd Faizal
Published: June 2021

Objectives

The male-factor subfertility was reported to be 30% globally; thus, the intracytoplasmic sperm injection (ICSI) procedure was implemented to improve the overall in vitro fertilization (IVF) rates. Nevertheless, at least 10% of fertilization failure still occurs. Concerning this issue, we explored the association of sperm concentration and motility with the quality of embryo development and pregnancy outcome in IVF-ICSI cycles.

Methods

Retrospective analysis of 109 couples with male factor were done over 14 months in a tertiary university hospital in Malaysia. The data were divided into four groups; Group I: normal sperm parameters, Group II: normal sperm concentration but reduced total sperm motility, Group III: reduced sperm concentration and motility, Group IV: reduced sperm concentration but normal sperm motility. Only fresh semen samples and fresh embryo transfers were included. The fertilization, cleavage rate, embryo quality and pregnancy outcome were assessed.

Results

Overall, group I had the highest oocytes yield and ICSI attempted; (10.12 + 6.50), whereas the lowest was in group IV; (7.00 + 2.82). Group II revealed the highest fertilization and cleavage rates; (54.14 + 25.36), (55.16 + 26.06), thus not surprisingly resulting in the highest number of good embryos and highest clinical pregnancy rates. The lowest cleavage and pregnancy rates were seen in group IV. However, all the outcomes were not statically significant (p>0.05).

Conclusions

Similar fertilization rate and comparable pregnancy outcome was seen among couples with normal and reduced sperm concentration and motility.
Mathematical modeling of polymer dielectric strength considering filling concentration
Authors: Mokhtar Mohamed , Nasrat Loai S. , Attia Mahmoud A.
Published: June 2021

Enhancement of Dielectric strength is an important issue to enhance power system reliability. Insulation filling such as Alumina Trihydrate (ATH) and Silicon dioxide (Sio2) are used to enhance the dielectric strength of polymer insulator. The paper proposes a mathematical model of dielectric strength considering different temperatures and filling percentages using neural network. Moreover, comparison of filling materials is carried out through this model. The comparison shows the superiority of ATH in enhancing the dielectric strength of the polymer. Also, the obtained model will help in getting the best filling concentration without needing to repeat the tests which can be considered as a techno-economical solution to enhance the dielectric strength. Finally, the curve fitting is used to get the dielectric strength model not only as a function of filling concentration percentage but also as a function of temperature.
Increased lipocalin 2 levels in adolescents with type 2 diabetes mellitus
Authors: Takaya Junji , Tanabe Yuko , Kaneko Kazunari
Published: June 2021

Objectives

Bone can act as an endocrine organ through the secretion of bone-specific hormones, i.e., osteokines. Recent research has demonstrated that lipocalin 2 (LCN2) secreted by osteoblasts are part of an important endocrine system that is finely tuned with other organs to ensure homeostatic balance and health. The aim of this study was to explore the association between bone and glucose metabolism in adolescents with obesity and type 2 diabetes mellitus (DM2).

Methods

The participants were 8 adolescents with DM2 (5 males, 3 females; age: 17.0 (14.0–20.0) years, median (interquartile range)), 14 adolescents with simple obesity (9 males, 5 females; age: 13.5 (12.4–15.5) years), and 15 controls (6 males, 9 females; age: 13.3 (11.0–15.0) years). Serum LCN2 and under-carboxylated osteocalcin (un-OC) levels were measured using enzyme-linked immunosorbent assays.

Results

The LCN2 levels were higher in patients with DM2 (58.1 (34.2–95.0) ng/mL; median (interquartile range)), but not in those with obesity (30.8 (23.1–38.3) ng/mL), when compared to the controls (18.2 (9.8–25.7) ng/mL). In the whole study group overall, serum LCN2 was positively correlated with the Model Assessment of Insulin Resistance score (r=0.339, p=0.046) and body mass index (r=0.580, p<0.0001), and negatively correlated with adiponectin (r=−0.462, p=0.005). A multiple stepwise regression model showed that serum adiponectin was an independent predictor of serum LCN2.

Conclusions

The results of this study indicate that further investigations are warranted to determine whether LCN2 may act as a sensitive indicator of early-stage insulin resistance.
Intertwin differences in umbilical artery pulsatility index are associated with infant survival in twin-to-twin transfusion syndrome
Authors: Espinoza Jimmy , Belfort Michael A. , Shamshirsaz Alireza A. , Nassr Ahmed A. , Sanz Cortes Magdalena , Donepudi Roopali , Espinoza Andres F. , Ostovar-Kermani Tiffany G. , Johnson Rebecca M. , Harman Christopher , Ozdemir Halis , Turan Ozhan
Published: June 2021

Objectives

To evaluate the association of intertwin differences in umbilical artery pulsatility index (DUAPI) and infant survival in twin-to-twin transfusion syndrome (TTTS).

Methods

Absolute DUAPI was calculated prior to laser surgery. Receiver-operating characteristics (ROC) curve analysis provided an intertwin DUAPI cutoff of 0.4 for the prediction of double twin survival to 30 days of life. Infant survival was compared between women with an intertwin DUAPI <0.4 and ≥0.4 in the whole cohort, in TTTS cases with Quintero stages I/II and in those with Quintero stages III/IV. Regression analyses were performed to evaluate the association of intertwin DUAPI <0.4 and infant survival adjusted for confounders.

Results

In total, 349 TTTS cases were included. Double twin survival to 30 days was observed in 67% (234/349) of cases. Significant differences in double twin survival was seen between intertwin DUAPI groups in the whole cohort (76.8 vs. 52.2%; p<0.001), in women with TTTS Quintero stage I or II (77.8 vs. 58.5%; p=0.015) as well as in women with TTTS Quintero stage III or IV (75 vs. 49.5%; p=0.001). Intertwin DUAPI <0.4 conferred a threefold increased chance for double twin survival.

Conclusions

Small intertwin DUAPI is associated with increased double infant survival in early and advanced TTTS stages.
Designing of new hydrophilic polyurethane using the graft-polymerized poly(acrylic acid) and poly(2-(dimethylamino)ethyl acrylate)
Authors: Chung Yong-Chan , Gu Gyo Young , Park Ji Eun , Chun Byoung Chul
Published: June 2021

Poly(acrylic acid) and poly(2-(dimethylamino)ethyl acrylate) chains were grafted to polyurethane (PU) using the graft-polymerization method in order to enhance the water compatibility of PU. The grafted chains were ionized into cationic or anionic form depending on the addition of strong acid or base. The grafted polymer chains did not affect the melting, crystallization, and glass transition of the soft segment of PU due to the softness of the chain. The cross-link density and solution viscosity increased due to the linking between the grafted chains, but the slight cross-linking did not disturb the solvation of PU. The slight cross-linking notably enhanced the maximum tensile stress and shape recovery capability, and the water compatibility of PU could be notably enhanced by the grafted ionized chains. Overall, the grafting of ionized polymeric chains onto PU could enhance the hydrophilicity of PU surface, tensile strength, and shape recovery capability.
Ana Mancera Rueda y Ana Pano Alamán: La opinión pública en la red. Análisis pragmático de la voz de los ciudadanos
Authors: Usandivaras Mariana Morón
Published: June 2021

El libro La opinión pública en la red. Análisis pragmático de la voz de los ciudadanos de Ana Mancera Rueda y Ana Pano Alamán pertenece a la colección “Lengua y sociedad en el mundo hispánico” que publica investigaciones sobre las lenguas ibero-románicas y sobre aquellas con las cuales entran en contacto. Este libro tiene como objeto de estudio las manifestaciones lingüísticas que permiten la configuración de la opinión pública en las redes sociales en el marco teórico que le proveen el Análisis del Discurso y la Pragmática Lingüística.
Descriptive Economy in the New Weird Short Story: China Miéville’s “The Condition of New Death”
Authors: Isekenmeier Guido
Published: June 2021

This article investigates the forms and functions of description in New Weird fiction, using texts by China Miéville as examples. It contrasts the expansive descriptive routines of his novelPerdido Street Station(2000) with the compact forms of descriptivity found in the short story “The Condition of New Death,” focussing on the role of metaphoric condensation and the blending of description with narrative and explanatory modes. Occasionally drawing on other stories contained in Miéville’s 2015 collectionThree Moments of an Explosion, it formulates a model of the descriptive economy of short fiction.
Mean Streets: Tracking the Dispositives of Address(es) with China Miéville’s “Reports of Certain Events in London”
Authors: Glaubitz Nicola
Published: June 2021

Miéville’s short story stands out for its perhaps experimental, perhaps old-fashioned form: the story’s first-person narrator adopts, in nineteenth-century fashion, the persona of an editor and presents both his own view on the ‘events’ in question and a number of mock documents he has allegedly been sent. Readers are encouraged to piece together the story elements – events and characters – from postcards, minutes of a meeting, memos, personal letters, and tables. Typographically distinct and juxtaposed rather than narratively linked, these text fragments suggest internal conflicts in a group of people who track rogue streets – streets that change their location spontaneously and wreak havoc on the geographical and the political order of cities. It is no coincidence that a mix-up of names and addresses is the starting point of the story; the story’s ending hints at the consequences of having or not having a fixed address. My contribution examines Miéville’s use of the short story form in the context of fantastic literature. Following suggestions of Miéville’s “The Conspiracy of Architecture” (1998), the foregrounding of formal and quasi-material aspects of organising and mediating knowledge is read as an engagement with the power/knowledge dispositives made up of discursive ordering principles as well as city planning and city geography.
Impact of Beater Shape in Mixing Test to Determine Clogging Potential
Authors: Zhou Yang , Kang Chao , Bayat Alireza
Published: June 2021

Clogging is a common phenomenon in tunnel boring machine (TBM) excavations, and cutterhead shape can influence clogging potential. In this research, a mixing test with a newly proposed index has been introduced to assess clogging potential. Five mixtures—composed of different percentages of bentonite and kaolin—were employed to simulate soil conditions. For each mixture, samples with five different water contents (ranging between the plastic and liquid limits) were employed in the mixing test. Three different beater shapes were used to investigate the effect of beater shape on mixing test results. The ratio (A′/A) between the open area of the beater (A′) and the entire surface area of the beater with no opening (A) was introduced to quantify the difference in beater shape. The Hobart mixer used in the research is 18.9 liter (20-qt). Two indexes were used to analyze mixing test results: the weight of soil stuck to the beater per unit area (W/Ac) and the weight of soil stuck to the beater (GB). The results indicate that both W/Ac and GB increase with increasing bentonite content in the mixture. However, there are no clear trends that can be observed in GB for different beater shapes. The variation of maximum GB is within 0.5 kg when A′/A increases from 0.52 to 0.7 for the 5 clay mixtures, showing a difference of 12 %. It is concluded that W/Ac increases dramatically with an increase in the open area of the beater, whereas GB only varies slightly. Undoubtedly, the shape of beater used cannot be ignored for tests to assess clogging potential. Furthermore, W/Ac is a good indicator to detect the impacts of beater shape on mixing test results.
Are variations in kernel-related morphometric and chemical parameters correlated with differences in Sitophilus oryzae attack in maize?
Authors: Lanzanova Chiara , Agape Cristina , Castorina Giulia , Balconi Carlotta , Alfieri Michela , Locatelli Daria P. , Consonni Gabriella , Limonta Lidia
Published: June 2021

Insect infestation during seed storage affects cereal productivity. Sitophilus oryzae, which is present in various climates, is one of the primary pests for maize (Zea mays) seeds. In this study, kernels of a set of eight inbred lines of importance for both maize breeding
and research activities were characterised for morphological and biochemical parameters as well as for their susceptibility to S. oryzae. S. oryzae was reared in laboratory- controlled conditions and the susceptibility index (SI, range: 0-11), which depends on both number of
emerging adults and their median developmental period, was measured. Maize kernels of each of the eight maize lines were put in contact with less than 3-day old males and females of S. oryzae for 13 days. Infested kernels were checked daily for new adult emergence. Four maize lines
were susceptible to S. oryzae attack (SI = 7.5 to 9.7) while the others appeared to be moderately resistant (SI = 4.6-6.9). Our results highlighted the occurrence of variability for insect susceptibility among different maize genotypes, however, variations in the kernel traits analysed
do not allow us to make predictions about the response to insect attack.