bluuebunny/crossref_metadata_2025 huggingface dataset:
Experience of the army internship of military medical academy cadets on stomatology
Authors: Balin Vladimir V. , Zheleznyak Vladimir A. , Borisova Eleonora G.
Published: September 2022

BACKGROUND: An organized acquisition of practical skills at the military level, in the positions of dentists of a medical company (military medical organization), by cadets studying stomatology is relevant.

AIM: The purpose is to highlight the tasks solved during the military training of cadets, the methodology of their implementation and the results achieved.

MATERIAL AND METHODS: Cadets in their fifth year of the fourth pharmacy of the Faculty of Training Doctors for the Navy who were studying stomatology started their clinical practice (military internship). The departments of organization and tactics of the medical service, general and military epidemiology, general and military hygiene, military medical supplies, officials of the educational and methodological department, and representatives of the faculty took part in the preparation and conduct of the military internship. The training of cadets included the main provisions of methodological recommendations, documents worked out during the internship, and recommendations from representatives of departments focusing on certain profile issues.

RESULTS: The cadets fully completed the military internship program in the stomatology specialty, received positive feedback from the commanders of military units, and successfully defended the reports on the work done. The survey showed that the cadets who were constantly located in remote military units managed to work out the largest number of manipulations, which allowed them to determine the real conditions of their future service. They were also most satisfied with the results of their practical work. The acquired knowledge enabled the cadets to adjust their theoretical training. The vast majority of cadets requested increasing the internship period to 4 weeks. All streams completed the internship without comments due to the responsible attitude of the internship managers and the assistance of officials of the medical service of the Western Military District and the Baltic Fleet.

CONCLUSION: The military internship allowed the cadets to get acquainted with real military service, instilling a sense of pride in belonging to the Armed Forces of Russia. The experience gained allowed us to focus on planning internships in military units, whereas the number of cadets specializing in dentistry should be no more than two in one military unit. It is desirable to expand the geography of the internship. Thus, the duration of clinical practice was recommended to be at least 4 weeks. A more in-depth study of the documentation conducted in the dental office and as a part of the medical service is necessary. Publishing methodological recommendations on the organization of clinical practice (military internship) of cadets studying in the stomatology specialty is desirable.
Application of a computer program in the assessment of psychological parameters of patients with lichen planus of the oral mucosa
Authors: Vildanov Marat N. , Gerasomova Larisa P. , Chemikosova Tatiana S. , Golub Anna A.
Published: September 2022

BACKGROUND: The relevance of the study of oral lichen planus (OLP) does not raise doubts given the unclear etiological nature of this dermatitis, potential for malignancy, and difficulty in performing therapeutic measures.
AIM: To assess the psychoemotional state of patients with various forms of OLP using a computer program (ConScale).
MATERIAL AND METHODS: We examined 287 patients with a verified diagnosis of OLP. The average age of the patients was 47.89.0 years; men, 121 (42.1%); women, 166 (57.9%).
RESULTS: Psychological parameters were assessed using ConScale according to the Beck Anxiety Inventory (BAI) and Beck Depression Inventory (BDI). In comparison with the control group (n=32) of comparable age and sex according to BAI and BDI, significant differences were found in patients with erosive-ulcerative, exudative-hyperemic, and bullous forms of LP. A relationship was found between these clinical forms of OLP and psychological conditions such as anxiety and depression.
CONCLUSION: The results indicate the need to include psychological testing of patients with OLP in the protocol for a comprehensive assessment of the patients condition and treatment with individually selected sedatives.
Effect of laser radiation and sodium fluoride on the reactivity of prepared teeth
Authors: Garazha Sergej N. , Grishilova Elena N. , Gotlib Angelina O. , Kodzhakova Tanzilya Sh. , Batchaeva Dinara D.
Published: September 2022

BACKGROUND: The use of esthetic restorations (metalceramic and metal-free) provides for the preparation of teeth within the enamel and surface or middle layers of the dentin, which entails an increase in the reactivity of teeth. One of the promising directions for increasing the resistance of the prepared teeth in the orthopedic treatment of patients using esthetic dental restorations is the combined and consistent use of fluorides and low-intensity laser radiation.
AIM: To examine the effect of low-intensity laser radiation and sodium fluoride on the reactivity of dissected vital teeth.
MATERIAL AND METHODS: A 2% aqueous solution of sodium fluoride was administered by electrophoresis with a portable device Desensitron-II. For laser exposure, a dental laser device Optodan was used in the first (anti-inflammatory) mode of operation. The research material was the results of orthopedic treatment of 120 patients aged 2039 years (57 men and 63 women). To assess the initial state of teeth reactivity and the effect of the therapeutic measures, the sensitivity of the teeth to temperature (thermoreactivity of the teeth), mechanical (sliding tangent test), and electrical (electrodontometry) influences was investigated.
RESULTS: In the third group, the studied indicators before fixation demonstrated the maximum improvement in indicators relative to the data obtained in other groups.
CONCLUSIONS: The combined sequential effect of low-intensity laser radiation and sodium fluoride reduces the reactivity of the prepared teeth while significantly improving the indicators of electrical excitability of the pulp and increasing the pain threshold in relation to temperature and mechanical stimuli.
Effect of a new domestic remedy for fixation of removable dentures on oral mucosal immunity
Authors: Malyshev Mikhail E. , Kerimkhanov Kamil A. , Iordanishvili Andrey K.
Published: September 2022

BACKGROUND: The persisting high incidence of complications in removable acrylic dentures should convince the researchers to understand the consequences of denture use on the oral health and whole organism.
AIM: To examine the peculiarities of the oral mucosal immunity in patients with partial removable acrylic dentures and to evaluate the efficacy of the application of Asepta Prodontal denture fixation agent.
MATERIAL AND METHODS: Mucosal immunity was studied in 93 (24 men and 69 women) elderly patients (aged 61 74 years) with partial tooth loss who were divided into three study groups. Patients in the control group 1 (n=30) did not use any dentures. Group 2 (n=33) had partial removable acrylic dentures and from the first day of the adaptation period were offered to use the domestic denture fixation cream Asepta Parodontal (ZAO VERTEX, Saint Petersburg, Russia). Partial removable acrylic dentures were also made for group 3 (n=30), but their adaptation period was conducted without the application of domestic Asepta Parodontal denture fixation cream.
RESULTS: On day 15 of the adaptation period in groups 2 and 3, inflammatory changes in the denture bed mucosa were revealed in 9.1% and 56.7% of the cases, respectively. On day 30 of dynamic observation in groups 2 and 3, inflammatory changes in the prosthetic bed mucosa were noted in 6.1% and 40.0% of the cases, respectively. The average numbers of visits to the doctor for denture correction in groups 2 and 3 were 1.33 and 2.76, respectively. A significant increase was found in the levels of pro-inflammatory cytokines on day 15 of the study in the saliva of patients with removable dentures, who used them without the denture fixation agent Asepta Parodontal, whereas patients using Asepta Parodontal showed an increase only in interleukins (IL) 6 and 8. Moreover, on day 30 of the study, no differences from the control group were observed in the concentration of pro-inflammatory cytokines compared with the group using domestic denture fixation cream, and in the group without using the cream, no decrease in the level of pro-inflammatory cytokines was noted. The concentration of RAIL and IL-10 increased in group 3 on both day 15 and 30, whereas no significant differences were observed in the group using the cream.
CONCLUSION: Better prosthetic bed condition, decreased concentration of pro-inflammatory cytokines with a simultaneous elevation of secretory IgA in the oral cavity, testifying to the decrease in inflammation, and an increase in the immunity of the oral mucosa was noted in patients using Asepta Parodontal denture fixation agent.
Role of human papillomavirus infection in the development of oral leukoplakia and oral squamous cell carcinoma
Authors: Mikhalev Dmitry E. , Baydik Olga D. , Mukhamedov Marat R. , Chebakova Marina V. , Ibragimova Marina K.
Published: September 2022

BACKGROUND: The annual global oral cancer morbidity is more than 650,000 cases. Between 2007 and 2017 in the Russian Federation, the absolute number of first-ever diagnosed oral cavity malignant neoplasms is constantly increasing. According to many authors, oral squamous cell carcinoma is associated with pre-existing leukoplakia. This disease is the most common and prone to malignant precancerous oral mucosa disease. Human papillomaviruses (HPV) are crucial players in this process. However, the relationship between HPV infection in leukoplakia and oral squamous cell carcinoma remains unclear.
AIM: To establish the HPV role in the development of leukoplakia and squamous cell carcinoma of the oral mucosa.
MATERIAL AND METHODS: The study included 39 patients with verified various forms of oral leukoplakia and oral squamous cell carcinomas. The squamous cell carcinoma group included 19 patients. The oral leukoplakia group is consisted of 20 patients. The control group of healthy volunteers is represented by 22 patients with clinically healthy oral mucosa. HPV deoxyribonucleic acid (DNA) was detected and quantified in clinical materials by polymerase chain reaction with hybridization-fluorescence detection AmpliSense HPV HRS screen-titer-FL for HPV types 16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, 66, and 68 and AmpliSense HPV 6/11-FL for HPV types 6 and 11.
RESULTS: HPV types 6 and 11 DNA were isolated in three cases with insignificant clinical disease from 19 samples taken from patients with oral squamous cell carcinoma. In groups of leukoplakia and healthy volunteers, no high oncological risk was identified. Despite a HPV-positive expression in squamous cell carcinoma samples is detected, no significant difference was found between the squamous cell carcinoma group and control group (p=0.09).
CONCLUSION: No significant association was noted between HPV and oral squamous cell carcinoma; however, a low carcinogenic-risk HPV was detected in 15.7% of carcinoma samples. No HPV contamination was detected in patients with leukoplakia and healthy groups.
Clinical application of the surgical navigation template construction for soft tissue transplantation to increase the width of the added keratinized gingiva
Authors: Tkachenko Elina D. , Apresyan Samvel V. , Stepanov Alexander G.
Published: September 2022

BACKGROUND: In surgical periodontology, modifications of soft tissues help achieve a series of important tasks: increase the area of keratinized attached gums, increase the volume of soft tissues, and consequently improve the biological and esthetic state of soft tissues. To achieve these goals, the most common method is the extraction and transplantation of tissue grafts from the hard upper palate. To date, no design of a surgical navigation template allows taking a gingival graft by pre-programmed parameters. The article justifies the necessity of the development and clinical application of a navigational surgical template made with modern digital technologies and used in operations modifying the frontal oral cavity with the transplantation of free gingival grafts from the hard upper palate.
AIM: To develop and apply in clinical practice a navigational surgical template for a programmable sampling of a free gingival graft for vestibuloplasty in patients with periodontal diseases.
MATERIALS AND METHODS: With the use of modern digital technologies, the designs of individual surgical navigation templates for the intake and transplantation of free mucosal transplantation during vestibuloplasty were developed. The developed templates are used in clinical practice.
RESULTS: For vestibuloplasty, navigational surgical templates for the extraction and transplantation of free gingival graft were developed and manufactured using modern digital technologies. As a result of this development, patents were obtained for the inventions Guiding template for soft tissue transplantation and Method of gum transplantation. The case study demonstrates the benefits of using the aforementioned navigational surgical templates. The invented method makes it possible to obtain donor tissues procured from an anatomically harmless portion of the hard upper palate. Moreover, the surgical templates make it possible to produce a recipient bed identical in shape and size to the removed donor transplant tissue, thereby making it possible to avoid the necessity of adapting the transplant in an artificial recipient bed outside the oral cavity and reducing the time spent by donor tissue detachment from any real oral cavity.
CONCLUSIONS: Taking into account the positive results of the clinical testing of the proposed technology, a randomized study is warranted to evaluate the effectiveness of vestibuloplasty with a free gingival graft using a surgical navigation template in comparison with a similar operation performed using classical technology. It is necessary to identify the statistical significance of the obtained clinical results of treatment.
Retrospective analysis of the treatment of internal disorders of the temporomandibular joint and myofascial pain disorders in the conditions of adult orthodontic reception
Authors: Fazylova Tatiana A. , Ilyin Alexander A. , Olesova Valentina N. , Olesov Egor E. , Radzishevsky Boris M. , Movsesyan Vagarshak G.
Published: September 2022

BACKGROUND: Internal disorders of the temporomandibular joint (VN TMJ) occur at orthodontic reception no less often than with other types of dental treatment. The main clinical manifestations of VN TMJ are caused by variants of anterior displacement of the articular disc, pathology of the capsular ligamentous apparatus, hypermobility of the mandibular head, and dysfunction of the masticatory muscles. The main symptom of VN TMJ is joint pain (arthralgia) and muscle pain (myalgia). VN TMJ occupies a special place in orthodontic treatment. They can be detected at the initial treatment, and their symptoms can appear at any stage of orthodontic treatment and be a complete surprise for the doctor and the patient, arise after orthodontics, and be associated with it. Since VN TMJ significantly affects the therapeutic process, its outcomes, prognoses, and treatment problems are under the close influence of orthodontists.
AIM: To examine the effectiveness of the treatment of VN TMJ and myofascial pain disorders in patients with dental anomalies.
MATERIAL AND METHODS: The study retrospectively analyzed case histories of 300 adult patients with dental anomalies in need of orthodontics who underwent examination and treatment in a multidisciplinary dental clinic between 2014 and 2016. The prevalence and structure of VN TMJ were assessed, and myofascial pain disorders (MFDB) and results of their correction were analyzed.
RESULTS: A total of 146 (71.5%) patients with myofascial pain and 58 (28.3%) with myofascial facial pain syndrome needed orthodontic treatment more often. In these patients, VN TMJ and maxillary anomalies belonging to class II according to Engle of unilateral distal occlusion, deep bite, and class I with crowding of teeth are more often detected. Internal TMJ disorders with concomitant MFDB in the form of myofascial pain were observed in 168 (82.4%) patients. Myofascial pain disorders without VN TMJ were registered in 36 (17.4%) patients. The overall effectiveness of the treatment of VN TMJ and MFBSD was 46.4% (n=78 patients). No lasting improvement was observed in 35.7% (n=60). Deterioration was registered in 17.8% (n=30). Relapses were noted in 60.7% (n=124). In the treatment of MFDB without VN TMJ, the overall effectiveness of treatment was 5.5% (n=2), stabilization in 50.0% (n=18), and deterioration in 44.4% (n=16).
CONCLUSION: Myofascial facial pain is very difficult to treat. In combination with VN, TMJ creates significant and sometimes insurmountable difficulties in adult orthodontics. All this forces specialists to look for new approaches and develop effective ways to optimize orthodontic treatment in the case of TMJ pathology and myofascial pain disorders.
State of the temporomandibular joint of professional flute players according to clinical examination and vibrography
Authors: Fedotova Tatiana M. , Parunov Vitaly A. , Lebedenko Igor Yu.
Published: September 2022

BACKGROUND: When playing the flute, flautists take an asymmetrical posture, involve their masseter muscles extraordinarily, and experience stress. All these factors can affect the temporomandibular joint.
AIM: To identify pathognomonic signs of temporomandibular dysfunction in professional musicians playing the flute by analyzing clinical examination data in combination with joint vibration.
MATERIAL AND METHODS: Thirty professional flautists and 30 asymptomatic control subjects were examined. A standard clinical examination, a questionnaire survey based on the OHIP-14 questionnaire with additional questions, and a simple Hamburg test were conducted. We also conducted joint vibration analysis in both flautists and control subjects using the BioJVA device from the BioPAK complex (BioResearch, USA).
RESULTS: The survey showed that flautists experience clicks and pain in the temporomandibular joint and pain in the muscles of the head and neck significantly more often than the control group. According to the results of the Hamburg test, symptoms of temporomandibular joint dysfunction were detected much more often among the musicians than among the control subjects. These were clicks in the joint and pain during palpation of the masticatory and temporal muscles. Joint vibration analysis showed that the total integral in flautists tracks exceeded 20 PaHz, which was three times more often than that in the control group and indicates a pathology in the temporomandibular joint.
CONCLUSIONS: Clinical examination and joint vibration analysis revealed that the symptoms of temporomandibular dysfunction are more common in flute players than in the control participants; however, no pathognomonic signs of dysfunction were found.
Mechanism of light polymerization of composites
Authors: Bordina Galina E. , Lopina Nadezhda P. , Parshin Gleb S. , Andreev Alexey A. , Nekrasov Ilya A.
Published: September 2022

BACKGROUND: The article presents a review of the chemical aspects of the reaction of light polymerization of composites in dental practice. This reaction refers to free radical polymerization reactions, with photons as activators. In dentistry, composites are classified as chemically cured, light cured, doubly cured, and thermally cured. This depends on the origin of the activation energy of free radical polymerization of methacrylates. Chemically, dental composites are usually a mixture of four main components: an organic polymer matrix, an inorganic filler, an appret compound, a binder matrix and filler, and an initiatoraccelerator system. The radical polymerization process includes four main stages. The first stage is activation; in the case of light cured dental composites, it is photoactivation. In this case, a photoinitiator molecule is excited, for example, camphorquinone, which is widely used in the production of dental composite materials. If a free radical is formed, the polymerization process is similar for all composite materials based on a methacrylate organic matrix. The only difference is exactly how free radicals are formed and the rate of their formation. Under the influence of light quanta, the carbon atom of the ketone group of camphorquinone passes into an excited state, which allows the excited photoinitiator molecule to interact with two methacrylate molecules by a double bond. The double bond gives one electron to the excited camphorquinone molecule, and the second electron acts as a free radical agent; in other words, a macroradical is formeda monomer molecule that can attach other monomer molecules to itself.
Vladimir Mikhailovich Uvarov, distinguished Russian dentist and maxillofacial surgeon, professor and colonel of medical service
Authors: Iordanishvili Andrey K.
Published: September 2022

On the memory page among the Russian dentists and maxillofacial surgeons, it is impossible not to remember the outstanding figure in the worlds military medicine and practical health care, doctor of medical sciences, professor, and colonel of the medical service Vladimir Mikhailovich Uvarov. The study aimed to present scientific, clinical, pedagogical, and social activity of the outstanding dentist and maxillofacial surgeon, doctor of medicine, professor, and colonel of the medical service Vladimir Mikhailovich Uvarov, including his merits in military medicine. On the basis of the analysis of the Russian literature as well as the life, professional activity, and scientific works of Prof. V.M. Uvarov, doctor of medical sciences and colonel of medical service, we present his role in the formation and development of dentistry, maxillofacial surgery, and military medicine in Russia. There is no section of stomatology that V.M. Uvarov would not have paid attention to. He successfully defended 28 dissertations for the degree of candidate of science under his supervision. He is the author of more than 150 scientific works, including six monographs, a textbook, chapters in manuals, and textbooks. He was the author of the chapter on anesthesia and local anesthesia, written for the first textbook in the country Surgical Dentistry (1938). He was an honorable member of the all-union and all-Russian scientific society of dentists of the country; was a great pedagogue; generously shared his scientific, medical, and pedagogical experience with students, cadets, listeners, and lecturers; and carried out great therapeutic and consultative work. His name is among the outstanding maxillofacial surgeons of the country. He proposed the use of an extra-oral apparatus for the fixation of mandibular fractures and other innovations in the field of maxillofacial surgery and dentistry. At present, the students and followers of Vladimir Mikhailovich Uvarov keep him in their memory as a prominent organizer of military and civil health care, a clinician, a scientist, a teacher, and a model of man and humanity. He is remembered and loved.
Effect of the oil-ether complex of Siberian fir on the fungal and periodontopathogenic flora of the mouth (microbiological study)
Authors: Romanov Alexey S. , Olesov Egor E. , Tsarev Viktor N. , Olesova Valentina N. , Glazkova Elena V.
Published: September 2022

BACKGROUND: Peri-implantitis is mainly caused by the activity of periodontal pathogens with insufficient oral hygiene, which causes the disintegration of intraosseous dental implants against the background of chronic inflammation in peri-implant tissues. The correct techniques in the post-prosthetic stage in patients with dental implants include medical examination with regular professional oral hygiene, which is complicated by low patient compliance. In this regard, there are high requirements for the level of individual oral hygiene and for the effectiveness of local hygiene products, among which dental rinses occupy an important place. As rinses, it is possible to use pine-containing substances, particularly a complex of oil-essential fir Solagift of a Siberian company (Tomsk).
AIM: To conduct a microbiological study of the sensitivity of periodontopathogens and Candida albicans to the oil-essential complex of Siberian fir of different concentrations.
MATERIAL AND METHODS: A number of periodontopathogens and C. albicans were cultured in the presence of a complex of oilessential Siberian fir in the following proportions: 1:5, 1:10, and 1:15. Incubation for up to 3 days was conducted in the Reverse Spinner RTS-1 bioreactor (BioSan, Latvia) with automatic analysis of the optical density of the culture (OD) at a wavelength of =850 nm. The optical density was measured in McFarland units (Mcf). The assessment of culture growth control was based on the analysis of the growth phases of periodontopathogens: adaptive (lag phase), exponential (log phase), stationary, and dying. The following clinical isolates of microorganisms were used: Streptococcus constellatus, Staphylococcus aureus, Fusobacterium nucleatum, Aggregatibacter actinomycetemcomitans, and C. albicans.
RESULTS: Joint cultivation of periodontopathogens with the oilether complex of Siberian fir reduces the OD of cultures of clinical isolates when breeding coniferous substance 1:151:5 by 13.727.1% (A. actinomycetemcomitans), 18.362.0% (F. nucleatum), 30.056.4% (S. aureus), and 19.274.1% (S. constellatus). The studied coniferous complex suppresses the culture of C. albicans at a concentration of 1:5, reducing the OD of the culture of fungi in the microbiological experiment by 29.8%.
CONCLUSION. Joint cultivation of periodontopathogens with the oilether complex of Siberian fir reduces the OD of cultures of clinical isolates when breeding coniferous substance 1:151:5. The studied coniferous complex suppresses the culture of C. albicans at a concentration of 1:5, reducing the OD of the culture of fungi in the microbiological experiment by 29.8%. The bacteriostatic effectiveness of the Siberian fir oil-ether complex significantly exceeds the effect of the herbal preparation Stomatophyte.
Effect of high-speed sintering modes of Russian zirconia samples made of Ziceram T on strength indicators and color
Authors: Sakhabieva Djamilia A. , Deev Mikhail S. , Dyakonenko Elena E. , Poyurovskaya Irina Ya. , Rusanov Fedor S. , Lebedenko Igor Yu.
Published: September 2022

BACKGROUND: In recent years, zirconia prostheses have gradually become a mass type of orthopedic treatment. The production of zirconium dioxide blanks for dentistry has also been launched in our country. In recent years, the possibility of speed sintering of dental prostheses made of zirconia has been widely calculated, which makes it possible to reduce the process of manufacturing structures by four to five times.
AIM: To investigate the effect of high-speed sintering on important properties, such as strength characteristics during three-point bending and color parameters at 10 different modes of speed sintering of ceramic materials.
MATERIALS AND METHODS: The work uses samples obtained by computer-aided design and computer-aided manufacturing milling from domestic Ziceram T blanks, color A2. Depending on the firing modes, the samples were divided into 11 groups. The strength of the sintered samples was studied with three-point bending on a bursting machine. The color parameters of the samples were determined on the Spectron-M color analyzer in the CIE L*a*b system on a white and black background using acceptable norms of color difference and characteristics of color shades.
RESULTS: According to the results of tests for resistance to bending, susceptibility has an approximate value of more than 300 MPa. According to ISO 6872, this flexural strength is sufficient for the fabrication чof single crowns in both anterior and posterior teeth. An increase in the lightness of ceramic samples based on zirconium dioxide from domestic factories Ziceram T of Zircon Ceramics was established. The reduced firing time led to an increase in body weight, which is associated with a decrease in their intensity.
CONCLUSION: Express firing modes of ceramics based on zirconium dioxide Ziceram T guarantee the achievement of the required strength. However, none of the studied firing modes allowed achieving the color parameters of the control samples.
Low-temperature technology in the context of a new energy transition paradigm (February 1–2, 2022, ITMO National Research University, St. Petersburg)
Authors: Tsvetkov Oleg B. , Laptev Yuri A.
Published: September 2022

A scientific and technical conference with international participation, Low-Temperature Engineering under Conditions of a New Energy Transition Paradigm, was held on February 12, 2022, at the National Research University ITMO (ITMO University, St. Petersburg) at the Mega-Faculty Biotechnologies and Low-Temperature Systems. It was organized by the International Academy of Refrigeration (IAR), ITMO University, and Working Group Properties of Refrigerants and Heat Transfer Agents of the National Committee on Thermophysical Properties of Substances of the Russian Academy of Sciences. Information support was provided by the journals Vestnik Mezhdunarodnoy Akademii Kholoda and Imperiya Kholoda, as well as the web portal Holodinfo.ru. The general sponsors of the conference were TechnoFrost and CryoFrost Engineering.
A Study on the Export Characteristics of Open Account Transactions and the Minimization of Credit Risk by Changes in Distribution & Logistics Environment: The Partial Role of Bank's Financial Platform
Authors:   The Korean Logistics Research Association, Kim Chang-Bong , Lee Dong-Jun
Published: September 2022

In recent decades, export trends have rapidly changed. As building long-term relationships with clients, the preference for payment is changing from documentary credit transactions to remittances. Accordingly, an extensive study on credit risk assessment on Open Account (from now on O/A) from the perspective of exporters is essential to reduce credit risk. The purpose of our study is to analyze the relationship between the characteristics of O/A and credit risk management performance mediated by the level of risk. In addition, the moderated mediating effect of the overseas trading period on the relationship will be analyzed.
Our research model and hypothesis were designed through an in-depth interview with a person in charge of practical affairs and previous literature. The target of the survey is shippers who perform general forms of exports through forwarders or shipping companies in Seoul, Gyeonggi-do, and Incheon. In order to secure objectivity of the questionnaire responses, simple random sampling was used with the list of members such as the Korea International Trade Association (KITA), Certified Trading Company, and Korea Certified Customs Attorneys Association. The analysis results are as follows: First, the characteristics of O/A had a positive effect on the level of risk. These results are consistent with the book by Harlaar & de Leeuw (2020). Considering that O/A is a deal on credit, it should be possible to increase the level of risk awareness through pre-negotiations. Second, the level of risk had a positive effect on credit risk management performance. These results are consistent with those of Niepmann & Schmidt-Eisenlohr (2017), Lee Jung-sun, and Huh Eun-sook (2021). In other words, the greater the recognition of risk, the lower the likelihood of credit risk. Third, the characteristics of O/A had a positive effect on credit risk management performance.
This finding is consistent with those in the book of Lin (2022). In O/A, the exporter’s withdrawal of payment often depends only on the importer’s credit. Therefore, using appropriate insurance for each transaction can have a significant positive effect on credit risk management performance. Fourth, in the relationship between the characteristics of O/A and the level of risk, the overseas trading period had a significant moderated mediation effect.
Our findings show that the longer the overseas transaction period, the lower the level of risk recognition due to accumulated transaction experience. This study is different from the study of Han Woo-jung and Cho Hyuk-soo (2019) in that trade experience and trading period are designed as moderating variables rather than independent variables.
Effects of Consumer Loneliness on Chatbot Recommendation Intention: Moderating Effects of Chatbot Conversation Style
Authors:   The Korean Logistics Research Association, Park Eun-Young
Published: September 2022

Anthropomorphizing chatbots can produce more effective consumer interactions owing to the human warmth provided by the chatbot. This study expands the scope of previous studies by examining the influence of loneliness, a personal consumer characteristic, on the acceptance intention of a chatbot recommendation. Additionally, the moderating effect of chatbot conversation style (warmth vs. competence) on this relationship was examined. To verify this hypothesis, we conducted two pretests and one laboratory experiment. The results of the analysis indicate that the higher the degree of loneliness, the stronger the tendency to accept chatbot recommendations (Hypothesis 1). Particularly, when the chatbot interacts in a warm manner, consumers who are experiencing loneliness are more likely to accept chatbot recommendations. However, when the chatbot interacts competently, the degree of loneliness does not affect the acceptance intention of the chatbot recommendation (Hypothesis 2). This finding contributes to the literature on chatbot anthropomorphism and provides practical information for chatbot conversation decisions in relation to consumer characteristics.
Professional Teachers’ Capability in the Implementation of Online-Based Quality Learning in Covid 19 Pandemic Era: Analysis of Technology Infrastructure Support in Indonesia
Authors: Juharyanto Juharyanto , Sultoni Achmad , Nasih Ahamad Munjin , Zahro’ Azizatus , Priyatni Endah Tri , Adha Maulana Amirul
Published: September 2022

Abstract: The Covid-19 pandemic has changed teacher’s mindset and actions in carrying out learning. The technological infrastructure is a critical factor for teachers in maintaining the quality of online learning. This study aimed to describe the quality of PTC in implementing quality online learning in the Covid 19 pandemic era based on geographical setting and technological infrastructure support in Indonesia. This study used a mixing research approach to conceive 3116 respondents and 39 informants across primary schools in East Java and North Kalimantan. This study showed that 1) there are no significant differences in PTC for different geographical settings; 2) Infrastructure readiness is an important factor for the online learning implementation; 3) teacher's effort is the most important determining factor for the implementation of quality online learning; 4) the quality of the teacher's effort is largely determined by the policy strength and the community response. This study emphasized the need to strengthen and appreciate teachers' efforts in implementing quality learning.
Abstrak: Pandemi Covid-19 telah mengubah pola pikir dan tindakan guru dalam melaksanakan pembelajaran. Infrastruktur teknologi merupakan faktor penting bagi guru dalam menjaga kualitas pembelajaran online. Penelitian ini bertujuan untuk mendeskripsikan kualitas PTC dalam mengimplementasikan pembelajaran online yang berkualitas di era pandemi Covid 19 berdasarkan setting geografis dan dukungan infrastruktur teknologi di Indonesia. Penelitian ini menggunakan pendekatan penelitian campuran dengan melibatkan 3116 responden dan 39 informan di SD di Jawa Timur dan Kalimantan Utara. Penelitian ini menunjukkan bahwa (1) tidak ada perbedaan PTC yang signifikan untuk setting geografis yang berbeda; (2) Kesiapan infrastruktur merupakan faktor penting dalam pelaksanaan pembelajaran online; (3) upaya guru merupakan faktor penentu terpenting bagi terselenggaranya pembelajaran online yang berkualitas; (4) kualitas upaya guru sangat ditentukan oleh kekuatan kebijakan dan respon masyarakat. Kajian ini menekankan perlunya penguatan dan apresiasi terhadap upaya guru dalam melaksanakan pembelajaran yang berkualitas.
Implementasi Keterampilan Dasar Komunikasi Konselor Sebaya dalam Konseling Online
Authors: Bestari Sugestining Wisnu , Zen Ella Faridati , Hotifah Yuliati
Published: September 2022

Abstract: This study aims to understand the peer counselors’ fundamental communication skills during online counseling in Peer Counseling Corner (PCC). In this phenomenology study, we gathered data through interviews, while the data validity was confirmed through data triangulation. The obtained data were analyzed using the data horizontalization analysis. Our results indicated that the peer counselors did not implement some basic communication skills during the online counseling, such as discussion initiation, rejection (preventing and prohibiting), confrontation, and silence. Their challenges in implementing the basic communication skills include less capable of identifying the non-verbal responses from the counselees, the counselors’ decreased verbal communication skills during the counseling via chat, a time limit that does not properly function, problems in the implementation of advice, difficulties in applying the reflection of feeling, network issues, as well as the different feel and values between the offline and online counseling.
Abstrak: Penelitian ini bertujuan untuk mengetahui penerapan keterampilan dasar komunikasi dalam konseling online oleh konselor sebaya di Peer Counseling Corner (PCC). Metode penelitian yang digunakan adalah jenis rancangan fenomenologi, pengumpulan data menggunakan wawancara, pengecekan keabsahan data menggunakan triangulasi data, analisis data menggunakan analisis data horizonalisasi. Hasil penelitian menunjukkan terdapat keterampilan dasar komunikasi yang tidak diterapkan dalam konseling online oleh konselor sebaya di PCC yaitu inisiasi pembicaraan, rejection (melarang, mencegah), confrontation (konfrontasi) serta silent (diam). Kendala penerapan keterampilan dasar komunikasi yaitu kurang dapat mengidentifikasi respon non verbal yang ditunjukkan konseli, kurang dapat menunjukkan empati kepada konseli, kapasitas konselor untuk berkomunikasi secara verbal berkurang apabila konseling dilaksanakan via chat, seringkali time limit tidak berjalan dengan baik, kendala dalam penerapan advice, kesulitan menerapkan reflection of feeling, adanya kendala jaringan serta perbedaan feel dan value antara konseling offline dan juga konseling online.
Actividad emprendedora. Colombia un país en reactivación: 2021-2022
Authors:   Universidad Icesi, Varela Villegas Rodrigo , Arango Carlos ,   Universidad Icesi
Published: September 2022

En este libro se ha dado énfasis a los entornos económicos y empresariales, pues es allí donde la política pública de apoyo a los procesos de creación y desarrollo de empresas tiene el mayor efecto. El hecho de que la economía colombiana se haya recuperado y presente, a la fecha de escritura de este informe, cifras muy favorables de crecimiento de algunos indicadores económicos (PIB, PIB-PC, tasa de empleo, índice GINI, porcentaje de población bajo línea de pobreza, etc.), aun con respecto a momentos prepandemia, es el resultado de un esfuerzo conjunto entre el gobierno y los empresarios y por ello se investigaron los programas y las acciones, que tanto el Gobierno como los empresarios pusieron en marcha para iniciar el proceso de recuperación [Rodrigo Varela Villegas].
An Examination on House Lessee’s Right to Claimthe Reimbursement of Beneficial Expenses fromthe Perspective of House Lessee Protection*
Authors:   The Legal Studies Institute of Chosun University, Kim Seo-Gi
Published: September 2022

Nowadays, many house lessees pay diverse expenses to improve facilities for housing as a result of introduction of the right to request the renewal of contract into Housing Lease Protection Act in 2020. Before the introduction, the courts of Korea seem to have decided in the direction of expanding the independence of the result of paying the expenses to protect a house lessee. However, it can seriously undermine legal stability to interpret in the direction of expanding the independence of the result in this way in order to admit the right to claim the purchase of attachment.
Also, I’d maintain that like a land lessee, a house lessee can exercise the right to claim the purchase of attachment only when he or she can demand the renewal of the house lease contract concerned. Accordingly, the right to claim the purchase of attachment is not given to the house lessee in the cases he or she has seriously violated his or her obligation as a house lessee, including the case for him or her to break all or part of the house concerned by intention or gross negligence, the case for him or her to sublease all or part of the house concerned without any consent of the house lessor, and the case his or her amount of the overdue rent is over the amount of the rent for two periods. Thus, the right to claim the purchase of attachment is not given to the house lessee who did not meet his or her obligation of the lease contract concerned in this way. On the other hand, the right to claim the reimbursement of beneficial expenses is given even to such a house lessee because in terms of legal characteristics, it is a kind of the right to claim the restitution of unjust enrichment.
For these reasons, from the perspective of protecting a house lessee, this Article focuses on examining the legal principles of the right to claim the reimbursement of beneficial expenses themselves, away from the attempt to view the result of paying the expenses as the object of the right to claim the purchase of attachment rather than as the object of the right to claim the reimbursement of beneficial expenses in order to protect a house lessee.
This Article examines the case a house lessee himself or herself exercises the right to claim the reimbursement of beneficial expenses and the case a house lessee transfers the right to claim the reimbursement of beneficial expenses to a third party.
Prevalence of refractive errors and their association with socio demographic characteristics in pediatric patients attending tertiary eye care centre
Authors: Choudhary Sadaf , Kai Sanjay , Mahajan Sachit , Sahni Bhavna , Bala Kiran
Published: September 2022

Background: Uncorrected refractive errors are one of the major culprits of visual impairment among children in our country. Children included in school going age groups i.e., 6-16 years, represent 25% of population in developing countries. They fall in the category of preventable age group for correction of refractive errors. This paper describes the salient features and results of the cross-sectional study conducted to determine the prevalence of refractive errors and their association with socio demographic characteristics in pediatric population objective were to study the prevalence of refractive errors and their association with socio demographic characteristics in pediatric patients attending tertiary eye care centre.Methods: The cross-sectional study was conducted for a period of one year among children in 0-16 years age group and a total of 444 patients were included. All children were examined by ophthalmologists and refraction was done by optometrists. Data was analysed using web-based software open epi version 3.01.Results: Prevalence of refractive errors was found to be 29.5%. Amongst the socio demographic factors, there was a significant association of age and literacy with refractive errors whereas gender and residence were not found to be significant.Conclusions: Refractive errors are an important preventable cause of childhood ocular morbidity. Schools are an excellent platform to educate children and their parents regarding eye care and signs of ocular morbidity due to refractive errors. Health education activities in schools need to be intensified.
Pet-saúde redes de atenção a pessoa com deficiência no contexto da atenção primária de saúde: reflexões sobre a deficiência e funcionalidade do sujeito
Authors: Martins Emilly Schuch , Trindade Jorge Luiz de Andrade
Published: September 2022

O Programa de Educação pelo Trabalho para a Saúde (PET-Saúde Redes de Atenção) visa o desenvolvimento de estratégias de promoção à saúde, contribuindo no fortalecimento das redes de referência orientadas pelas diretrizes do SUS. A Rede de Atenção A Pessoa Com Deficiência tem por objetivo promover ações tendo em vista a prevenção, monitoramento e encaminhamento de pessoas com deficiência. Além disso, propõe ações de cooperação entre ensino e serviço, reorientando a formação de profissionais da saúde. Este estudo tem por objetivo descrever experiências e reflexões da acadêmica de Psicologia sobre o paradigma médico e social no cuidado dos usuários deficientes, considerando o processo de intervenção multidisciplinar na atenção primária vivenciado no programa. Através do mapeamento das PCD’s, visitas domiciliares e trabalhos com grupos na Unidade de Saúde da Família (USF), observarmos relações dinâmicas entre profissionais, usuários e seus familiares, na busca por uma atenção integrada na rede pública de saúde. Destaca-se a importância da implantação de programas como o PET-Saúde, que consolidam a interação entre ensino-serviço-comunidade, contribuindo para construção de serviços de saúde mais qualificados, capazes de integrar promoção, prevenção e assistência à saúde e possibilitando práticas mais próximas das reais necessidades do SUS. As atividades realizadas, além de proporcionar a redução da exclusão de usuários do sistema de saúde, preconizou o fortalecimento da estruturação da rede de atenção ao PCD; colaborou para a formação de futuros profissionais de saúde e qualificação dos profissionais serviço de saúde local e promoção de intervenções técnicas de forma integrada e integradora à comunidade.
Effect of miR-129-3p on autophagy of interstitial cells of Cajal in slow transit constipation through SCF C-kit signaling pathway
Authors: Wang Heng , Ren Bingbing , Pan Jun , Fu Siqi , Liu Chunxiang , Sun Daqing
Published: September 2022

Objective: To explore the mechanism by which miR-129-3p affected the autophagy of interstitial cells of Cajal (ICCs) in slow transit constipation tissues through the SCF C-kit signaling pathway. Methods: Colon samples from 20 Slow transit constipation (STC) patients who underwent total colectomy plus ileorectal anastomosis or subtotal colon resection plus anti-peristaltic rectal anastomosis were collected in our hospital. The colon of 20 non-STC patients was used as control. The control of this study was 20 patients undergoing radical surgery for colon cancer (left colon cancer) in our hospital. Fifty healthy SPF Kunming mice were purchased from Liaoning Changsheng Biotechnology Co., Ltd. Results: The mRNA expression of miR-129-3p in the STC group was lower than that in the control group (CTLR) group (P<0.05). The mRNA expression of miR-129-3p in STC group was lower than that in the NC group (P<0.05), and mRNA expression in STC+miR-129-3p group was higher than that in STC+miR-NC group (P<0.05). In the first week, the weight of dry and wet feces of the STC group was lower than that of the NC mice (P<0.05), and the weight of dry feces and wet feces of the STC group was lower than that of the NC group at the 2, 3, and 4 weeks, STC+miR-129 -3p was higher than that in the STC group (P<0.05). Conclusion: The increased expression of C-kit and SCF regulated by miR-129-3p contributed to the protection of interstitial cells. Knockdown of miR-129-3p expression could inhibit the activation of AKT/mTOR signaling pathway, reduce cell proliferation activity.