bluuebunny/crossref_metadata_2025 huggingface dataset:
Adaptive scale weighted fuzzy C-Means clustering for the segmentation of purple soil color image
Authors: Zeng Shaohua , Wu Yalan , Wang Shuai , He Ping
Published: May 2021

The segmentation and extraction of the purple soil region from purple soil color image can effectively avoid the influence of background on recognition of soil types. A scale weighted fuzzy c-means clustering algorithm(SWFCM) is proposed for effective segmentation of purple soil color image. The main work is to establish the maximum difference optimization model with the mean of Gaussian distance between each pixel and each peak of the image histogram, and optimize the clustering number and the initial clustering centers. Then, the compactness of each class is defined to weight the Euclidean distance between the pixel and the clustering center and improve the optimization model of FCM for raising its clustering performance. Aiming at the problem of removing scattered small soil blocks in the background and filling holes in the purple soil region, the algorithm of extracting the boundary of the purple soil region and the algorithm of filling the purple soil region are proposed. Finally, the normal and robust experiments are carried out on the normal sample set and robust sample set. And the performances of relative algorithms are compared, which involves the previously released FCM algorithms and some methods for the segmentation of purple soil color image and our proposed algorithm. Experimental results show that performance of SWFCM is better and it can provide a high reference for adaptive segmentation of purple soil color images. Especially for robust experiment images, its average segmentation accuracy is improved by 6 . 64% ∼ 8 . 25 % compared with other purple soil segmentation algorithms.
Expected consistency-based model and multiplicative DEA cross-efficiency for group decision-making with incomplete distribution linguistic preference relations
Authors: Liu Jinpei , Shao Longlong , Zhou Ligang , Jin Feifei
Published: May 2021

Faced with complex decision problems, distribution linguistic preference relation (DLPR) is an effective way for decision-makers (DMs) to express preference information. However, due to the complexity of the decision-making environment, DMs may not be able to provide complete linguistic distribution for all linguistic terms in DLPRs, which results in incomplete DLPRs. Therefore, in order to solve group decision-making (GDM) with incomplete DLPRs, this paper proposes expected consistency-based model and multiplicative DEA cross-efficiency. For a given incomplete DLPRs, we first propose an optimization model to obtain complete DLPR. This optimization model can evaluate the missing linguistic distribution and ensure that the obtained DLPR has a high consistency level. And then, we develop a transformation function that can transform DLPRs into multiplicative preference relations (MPRs). Furthermore, we design an improved multiplicative DEA model to obtain the priority vector of MPR for ranking all alternatives. Finally, a numerical example is provided to show the rationality and applicability of the proposed GDM method.
A BWM-based approach for customer-oriented product development with insufficient information and its application to 5 G smartphone design
Authors: Wang Fang , Li Hai-Mei , Li Yan-Lai , Wu Ai-Ping
Published: May 2021

Quality function deployment (QFD) is a customer-oriented tool for developing products. Based on the idea of the best-worst method (BWM), a novel model is developed to determine the relative importance ratings (RIRs) of customer requirements (CRs) with interval grey linguistic (IGL) information, which plays a significant role in QFD. CRs are rated with IGL variables, and the degree of greyness degree function that can be used to handle the IGL variables is defined based on the power utility function. Then, considering customer heterogeneity, a model is constructed to derive the RIRs of CRs by following the logic of the BWM. Finally, a case study of 5 G smartphone development is provided to verify the validity and the feasibility of the proposed method.
Profiling Serum Antibodies Against Muscle Antigens in Facioscapulohumeral Muscular Dystrophy Finds No Disease-Specific Autoantibodies
Authors: Greco Anna , Straasheijm Kirsten R. , Mul Karlien , van den Heuvel Anita , van der Maarel Silvère M. , Joosten Leo A.B. , van Engelen Baziel G.M. , Pruijn Ger J.M.
Published: May 2021

Background: FSHD is caused by specific genetic mutations resulting in activation of the Double Homeobox 4 gene (DUX4). DUX4 targets hundreds of downstream genes eventually leading to muscle atrophy, oxidative stress, abnormal myogenesis, and muscle inflammation. We hypothesized that DUX4-induced aberrant expression of genes triggers a sustained autoimmune response against skeletal muscle cells. Objective: This study aimed at the identification of autoantibodies directed against muscle antigens in FSHD. Moreover, a possible relationship between serum antibody reactivity and DUX4 expression was also investigated. Methods: FSHD sera (N = 138, 48±16 years, 48% male) and healthy control sera (N = 20, 47±14 years, 50% male) were analyzed by immunoblotting for antibodies against several skeletal muscle protein extracts: healthy muscle, FSHD muscle, healthy and FSHD myotubes, and inducible DUX4 expressing myoblasts. In addition, DUX4 expressing myoblasts were analyzed by immunofluorescence with FSHD and healthy control sera. Results: The results showed that the reactivity of FSHD sera did not significantly differ from that of healthy controls, with all the tested muscle antigen extracts. Besides, the immunofluorescent staining of DUX4-expressing myoblasts was not different when incubated with either FSHD or healthy control sera. Conclusion: Since the methodology used did not lead to the identification of disease-specific autoantibodies in the FSHD cohort, we suggest that autoantibody-mediated pathology may not be an important disease mechanism in FSHD. Nevertheless, it is crucial to further unravel if and which role the immune system plays in FSHD pathogenesis. Other innate as well as adaptive immune players could be involved in the complex DUX4 cascade of events and could become appealing druggable targets.
Cronbach's alpha
Authors: Basu Arindam
Published: May 2021

Cronbach's alpha and omega are units of reliability of a set of items in a questionnaire. We discuss here how to calculate Cronbach's alpha and how to interpret the values.
Türk Eğitim Sistemindeki Uygulamalara Yönelik Öğretmen Görüşleri
Authors: GÖZLER Alpaslan , KOÇ Kenan
Published: May 2021

Bu araştırmanın amacı Türk eğitim sisteminde uygulanan bazı uygulamaların öğretmen görüşlerine göre değerlendirilmesini yapmaktır. Bu genel amaca bağlı olarak örgün öğretim kademelerinde ve öğretmen yetiştirme sürecinde yer alan uygulamalardan kaldırılması gerekenler ile getirilmesi istenen uygulamalar öğretmenlere sorulmuştur. Araştırma nitel araştırma yöntemiyle çalışılmıştır. Veri toplama aracı olarak dört soruluk açık uçlu anket uygulanmıştır. Araştırmanın çalışma grubu Kayseri ilinde görev yapan öğretmenler içinden amaçlı örneklem seçimi ile belirlenen 96 öğretmenden oluşmaktadır. Öğretmenlerin vermiş olduğu cevaplar betimsel analiz ile çözümlenmiştir. Araştırmada veriler 2019-20 eğitim öğretim yılının güz döneminde seminer çalışmaları haftasında toplanmıştır. Milli eğitimde kaldırılması gereken uygulamalara yönelik görüşler incelendiğinde Sözleşmeli ve ücretli öğretmenlik uygulaması, Nöbet zorunluluğu, 4+4+4 uygulaması ve öğretmenliğe alımda mülakat uygulamasının kaldırılması gerektiğini belirmişlerdir. Millî eğitime getirilmesine yönelik görüşler ise uygulamalı seminer çalışmaları, her okula özel eğitim sınıfı uygulaması, seminer haftalarının öğretmenlere de tatil yapılması, idareci alımında liyakat ve maaş artışı olarak sıralanmıştır. Öğretmenlerin öğretmen yetiştirme sürecinde kaldırılmasını istedikleri uygulamalar ise formasyon eğitimi, ataması olmayan bölümlerin kapanması-kısıtlanması ve gereksiz ve meslekte katkı sağlamayacak dersler olarak ön plana çıkmıştır. Öğretmenlerin öğretmen yetiştirme sürecine getirilmesini istedikleri görüşleri ise uygulamalı derslerin artması, özel eğitim ile ilgili öğretmenlik uygulaması, akademisyenlere becayiş ve tayin hakkı, akademisyen alımında öğretmenlik yapmış olma şartı, eğitim fakültesine öğrenci alımına mülakat sistemi ve akademisyenlere maaş desteği olmuştur. Bu sonuçlara bağlantılı olarak öneriler geliştirilmiştir.
Efficacy of Cyombopogon Citratus Extract Against Enterococcus Faecalis
Authors: Permatasari Lahagu Tessya Nitulo , Huynh Diem An  , Cindy Denhara Wijaya  , Mellisa Sim
Published: May 2021

Endodontic treatment refers to the act of removing infected pulp tissue and formingand reforming the root canals to prevent bacteria from entering the root canals.Microbial infection in the root canal or in the periapical area is a factor that can leadto failure of root canal treatments. Endodontic treatment failure can be caused thebacteria Enterococcus faecalis. The irrigation agent commonly used is sodiumhypochlorite. Sodium hypochlorite in large concentrations can be toxic to tissues.Lemongrass plant (Cymbopogon citratus) is a natural ingredient that can be used asan antibacterial agent. The aims of study to determine the comparison of theantibacterial effectiveness of lemongrass plant extracts (Cyombopogon citratus (DC).Staph) concentrations of 25%, 50%, 75%, 100% with 2.5% sodium hypochlorite ininhibiting the growth of the bacterium Enterococcus faecalis. Lemongrass plantextracts Cyombopogon citratus (DC). Staph) made by maceration method andconverted into 25%, 50%, 75%, and 100%. The bacterial test method used the agardiffusion test (Kirby-Bauer test) to see the effectiveness of antibacterialsThe result ofthe one way ANOVA statistical test resulted in significance value of p=0,001 (p<0,05)so that means there was differences in the average diameter of inhibitory lemongrassplant extracts (Cyombopogon citratus (DC). Staph) concentrations of 25%, 50%,75%, 100% with 2.5% sodium hypochlorite in inhibiting the growth of the bacteriumthe results are 13.68 ± 1.34 mm, 16.08 ± 0.87 mm, 16.33 ± 0.35 mm, 17.78 ± 0.93mm and 7.83 ± 0.44 mm and reinforced by the posthoc Tukey HSD test. Theconclusion from the study that there is a difference between the antibacterialeffectiveness of lemongrass plant extract (Cyombopogon citratus (DC). Staph)concentrations of 25%, 50%, 75% and 100% with 2.5% sodium hypochlorite ininhibiting the growth of the bacterium Enterococcus faecalis.
Comparison of Inhibition Zones Between Butterfly Pea Flower (Clitoria ternatea) and Lemongrass (Cymbopogon citrarus) Against Streptococcus mutans and Staphylococcus aureus
Authors: Haditio Steven Martin , Zulfan Muttaqin  , Lina Hadi
Published: May 2021

This study aims to determine the comparison of the inhibition zone between theextract of butterfly pea flower and lemongrass, against the bacteria streptococcusmutans and staphylococcus aureus. The samples that will be used in this researchare streptococcus mutans and staphylococcus aureus bacteria. Data analysis usednormality test and statistical test was performed using ANOVA analysis test and posthoc test. The results showed that there was no difference in the inhibition zone ofbutterfly pea flower extract against streptococcus mutans bacteria and lemongrassextract against streptococcus mutans. There was difference in the inhibition zonebetween butterfly pea flower extract against staphylococcus aureus bacteria andlemongrass extract against staphylococcus aureus bacteria. Butterfly pea flowerextract has a good inhibition zone in staphylococcus aureus bacteria. Lemongrassextract has the same inhibition zone against both types of bacteria
Activity of Averrhoa Bilimbi L Leaf Extract as Denture Cleaner Towards The Number of Colonies of Candida Albicans in Heat Cured Resin with a 30 Minutes Period
Authors: Idamawati  , M. Simanjuntak Rouli Natasia , Molek  , Listyaning Kartiko Kinasih
Published: May 2021

Denture stomatitis is a chronic inflammatory condition of the oral mucosa thatgenerally occurs in users of removable dentures. The cause is multifactorialbut is often associated with the presence of Candida albicans. The mucosawhich is covered by the denture base also reduces the function of saliva whichfunctions as a cleanser for the oral cavity and results in food wasteaccumulating and microorganisms such as Candida albicans can increase innumber. Candida albicans is a normal flora of the oral cavity which is anopportunistic pathogen. The starfruit plant (Averrhoa billimbi l) is a naturalingredient that can be used as an antifungal agent. The aim was to determinethe ratio of the effectiveness of starfruit leaf extract (Averrhoa billimbi) betweenthe concentrations of 12.5%, 25%, 50%, 100%, control + (Clorhexidine) andcontrol - (Aquadest) in reducing the number of Candida albicans colonies. Thetest method used the dilution method, the colony count of Candida albicansusing a spectrophotometer. The results of the one way ANOVA statistical testresulted in a significance value of p = 0.000 (p <0.05) which means that thereis a difference in the average concentration of Candida albicans between theextract concentrations of 12.5%, 25%, 50%, 100%, control + and control. -namely 6.78 ± 0.35, 6.27 ± 0.21, 4.89 ± 0.29, 1.01 ± 0.18, 0.59 ± 0.19 and 9.13± 2.28 in inhibiting growth Candida albicans and this was confirmed by theTukey HSD posthoc test. The conclusion of this study is that there is adifference between the antifungal effectiveness of starfruit leaf extract(Averrhoa billimbi) concentrations of 12.5%, 25%, 50% and 100% in inhibitingthe growth of Candida albicans colonies.
Correlations Between Mandibular Third Molars to Inferior Alveolar Nerve Locations in Vietnamese Population
Authors: Pham Ngoc Anh Thu  , Tran Nhut Thao Trang  , Florenly  , Novelya
Published: May 2021

One of the probable complications in mandibular third molar extraction is thedamage to the inferior alveolar nerve (IAN). Calculating the distance between IANand third mandibular can decrease the complication risk. In this study, cone beamcomputed tomography (CBCT) scans were used to evaluate several factors relatedto the positional relationship between mandibular third molar and IAN in theVietnamese population. One-hundred-seventy-eight CBCT scans were collectedfrom dental clinics at Ho Chi Minh City, from 1st January 2018 to 28th February2021. Only 100 scans were included in this study, 55 scans of female and 45 scansof male patients. The age of the patients ranged from 19 to 59 years old. From thisstudy, the most common location of IAN relative to the roots of the mandibularthird molar was on the apical side (60.5%), followed by the buccal side (21.5%), thelingual side (16%), and the least common located between the roots (2%). Overall,the mean distance between mandibular third molar roots to IAN was 3.19±1.85mm. There was a significant correlation between the left and right sides ofthe IAN location, indicating symmetry. Moreover, there is no association was foundbetween gender and the location of IAN
Hepatitis Lupus in Systemic Lupus Erythematosus in Male Patients
Authors: Putra Andikha , Raveinal
Published: May 2021

Systemic Lupus Erythematosus (SLE) is a complex autoimmune disease characterized by autoantibodies against the cell nucleus and involves many organ systems in the body with unknown etiologies and various clinical manifestations, disease course and prognosis. SLE can be found at all ages, generally appearing at age 9-58 years with a peak at age 28 years. It is more common in women with a ratio of women to men 15: 1 to 22: 1. The highest incidence and prevalence of SLE was found in North America 23.2 / 100.000 population / year and 241 / 100.0000 population. In Indonesia, there has been an increase in visits to SLE patients from 17.9-27.2% in 2015 to 30.3-58% in 2017. One of the manifestations of SLE is hepatitis lupus, which is inflammation of the liver tissue. Lupus hepatitis can occur in 20-50% of patients with SLE. It was reported that a 20-year-old man presented with complaints of pain in the joints of the right and left hands which increased since 1 week. The patient also complained of reddish patches on the face, hair loss and mouth sores. Physical examination revealed anemic eye conjunctiva, malar rash, oral ulcer. During the joint examination, there was tenderness in bilateral MCP and PIP. The abdominal examination revealed hepatomegaly. Investigations revealed anemia, thrombocytopenia, increased liver function. Abdominal ultrasound revealed hepatomegaly. ANA profile examination was positive for anti RNP, anti-sm, and anti- ribosomal protein antibodies. The patient was diagnosed with Systemic Lupus Erythematosus with lupus hepatitis according to the ACR (American College of Rheumatology) criteria in which the patient had 6 criteria. The patient was given therapy with 2x125 mg of intravenous methyl prednisolone for 3 days and hydroxychloroquine 1x200 mg orally and other symptomatic drugs.
Laparoscopic Davydov Procedure for Creation of Neovagina in MRKH Syndrome
Authors: Krisna Ratih , Rizky Agustria
Published: May 2021

Introduction: The Mayer-Rokitansky-Kuster-Hauser (MRKH) syndrome is a condition in which there is an absence of the uterus and the upper part (2/3) of the vagina. Women with MRKH syndrome show normal development of secondary sexual characteristics and a normal 46, XX karyotype. MRKH syndrome is a common cause of primary amenorrhea. Ultrasonography examination confirms kidneys, presence of the ovaries, and absence of uterus. Treatment should include a multidisciplinary approach to create a functional vagina. One of the procedures is laparoscopic Davydov vaginoplasty.

Aim: To report MRKH syndrome case treated with laparoscopic Davydov vaginoplasty.

Method: Ms. A, 21 years old, P0A0, came to FER clinic Moh. Hoesin Hospital Palembang with complaint, never had menstruation, the patient admitted her breast, and her pubic had growth. She wants to get married in the next six months. From the US result, there was non visualized uterus, genital band (+), and both ovaries within normal limit ~ MRKH Syndrome. Karyotype Examination: 46, XX. Patient was diagnosed with primary amenorrhea caused by MRKH syndrome and was planned for neovagina (Davydov Procedure).

Result: A woman 21-year-old, P0A0, was diagnosed with primary amenorrhea caused by MRKH syndrome. The Davydov procedure was done to create a neovagina. Intraoperative, after protrusion of the wood mold as a marker shown, an incision is made to the left and right side so that the mold penetrates the abdominal cavity, then the mold is pulled into the vaginal canal slowly. The anterior and posterior peritoneal layers are drawn into the vaginal canal. The anterior and posterior peritoneal layers were withdrawn with an ovum clamp and then interrupted suture. The anterior and posterior peritoneal layers were sutured in a circular method to form a vaginal cuff. The vaginal wall is sutured (interrupted) to hold mold fixed.

Conclusion: MRKH syndrome is a disorder that occurs in females and mainly affects the reproductive system. This condition causes the vagina and the uterus to be underdeveloped or even absent at birth. Patients with diagnosed MRKH syndrome require interdisciplinary care. Davydov procedure is a laparoscopically-assisted technique, which has an advantage over traditional approaches. It has shorter operating time, lower intraoperative complications, shorter hospital stay, and no external scars. Postoperatively, sexual function is similar to women without gynecological disorders.
Baccalaureate Nursing Students' Lived Experiences of a Leadership Role During Clinical Practicum
Authors:   , Schmidt Gisela
Published: May 2021

Problem Leadership is an essential component of professional nursing practice used in many aspects of the Registered Nurse (RN) role. Baccalaureate nursing (BN) programs have the responsibility of preparing graduating nursing students with leadership orientation and practice. Excellent professional preparation of RNs starts with their education during nursing school. The fast-paced and high-demand healthcare environment needs RNs who can be accountable for patient care that enables excellent patient outcomes and sound patient-centered care. Taking this into consideration, nursing educators are in a special position to promote nursing education which prepares their students with leadership education and training. The purpose of this study was to describe BN students’ lived experiences of a leadership role during clinical practicum. Method For this study, the phenomenological approach was used to be able to understand the phenomenon of a leadership role during the Team Leaders’ (TL) lived experiences during their clinical practicum of a Medical-Surgical course. Data came from journals written by 32 participants from two cohorts, and interview transcriptions from eight participants selected from the 32 journal writers. The data were organized and analyzed with the NVivo 12 Plus software program, based on close readings and analysis of the journals and interview transcripts. First and second coding cycles were used. During the first cycle of coding, I used two types of codes: Elemental method in vivo coding and the affective method of emotion coding. During the second coding cycle I used the pattern coding method. Results Key findings revealed several themes. According to the participant descriptions these themes are The Team Leader Role, Introduction to Nursing Leadership, A Great Learning Experience, Learning Outcomes, Emotions, and Negative Perceptions and Unanticipated Findings. From the gathered experiences of the participants the essence of the findings emerged as Learning Through Experience. Learning Through Experience increased the participants’ exposure to a variety of circumstances which enriched their knowledge about leadership and professional nursing. The results not only highlighted findings about what the participants had experienced related to leadership in nursing, they underlined specific learning outcomes related to professional nursing responsibilities. Conclusions These descriptions of the lived experiences of BN students in a leadership role during a clinical practicum demonstrated that experience is critical in the learning process. This research offers potential benefits to nursing education, promoting an alternative practice to maximize introduction to and education about leadership in nursing. Nursing students need to develop leadership skills prior to entering the workforce to make certain they are able to meet the challenges associated with the highly demanding healthcare environment.
Machine Learning Algorithms with Intermittent Demand Forecasting: An Application in Retail Apparel with Plenty of Predictors
Authors: GÜVEN İlker , UYGUN Özer , ŞİMŞİR Fuat
Published: May 2021

Demand forecasting is a key factor for apparel retail stores to sustain their business, especially where there are variety of products and intermittent demand.
In this study, two of the most popular machine learning methods, random forest (RF) and k-nearest neighbour (KNN), have been used to forecast retail apparel’s intermittent demand. Numerous variables that may have an effect on the sales, have been taken into account one of which is defined as “special day” that might trigger intermittence in the demand. During the application of the forecast, four different datasets were used to provide reliability. 28 different variables were used to increase accuracy of the forecasting and experience of the behaviours of the algorithms. Root mean square error (RMSE) was used to evaluate performance of the methods and as a result of this study, RF showed better performance in all four datasets comparing to KNN.
АДМІНІСТРУВАННЯ ОБЛІКОВО-АНАЛІТИЧНИХ ДАНИХ ІНФОРМАЦІЙНОЇ СИСТЕМИ ХЛІБОЗАВОДУ
Authors: Волошин Володимир , Гаврилюк Максим
Published: May 2021

Досліджено наукові точки зору, що стосуються питання адміністрування обліково-аналітичних даних інформаційної системи хлібозаводу. Наведено засоби вдосконалення рівня використання цифрових технологій у харчовій промисловості. Розглянуто функціональні можливості програмного комплексу «Дебет Плюс» з конфігурацією «Хлібозавод, пекарня». Описано прикладне програмне забезпечення «1С: Бухгалтерія хлібобулочного і кондитерського підприємства». Виділено підсистеми бізнес-процесів даної конфігурації. Розроблено довідник «Магазини», а також документ «Поставка товарів», що систематизуються у журналі «Поставка в магазин» у підсистемі «1С. Маркетинг та Продажі». Створено звіт «Реалізація товарів» з можливістю групування по контрагентах та магазинах, а також наочне зображення даних. Автоматизовано процес введення інформації для мінімізації помилок користувачів, за рахунок створення форм елементів та списку сутностей.
СУЧАСНІ РЕАЛІЇ МЕТОДОЛОГІЇ, МЕТОДИКИ І ОРГАНІЗАЦІЇ ОБЛІКУ ПОДАТКІВ ТА ЗБОРІВ
Authors: Дмитрук Борис , Гріднєва Дар’я , Cвєтлoва Ніна
Published: May 2021

У статті досліджені сучасні реалії методології, методики і організації обліку податків та зборів, формування інформації податкової звітності, що ускладнюють платникам податків ведення обліку і спонукають до постійного користування платними послугами: консультантів, зарубіжних та національних аудиторських фірм, адвокатів та судових експертів. Виявлено, що зміни в податкове законодавство, у звітність вносяться постійно протягом року. Обґрунтовано, що для зміни наявної ситуації на державному рівні необхідно розробити деталізовані інструкції для платників податків; узгодити терміни змін і введення в дію законодавчо-нормативних актів, які регулюють розрахунки за податками та платежами. З огляду на досвід розвинених країн стосовно відповідальності за методологію та методику обліку податків, рекомендовано залучити громадські національні неприбуткові професійні організації бухгалтерів до вирішення даних питань в Україні.
ПЕРСПЕКТИВИ ВИКОРИСТАННЯ ЕКОСИСТЕМНОГО ПІДХОДУ ЯК НАПРЯМКУ АКТИВІЗАЦІЇ СТРАХОВОГО МАРКЕТИНГУ
Authors: Рулінська Ольга
Published: May 2021

У статті розглянуто перспективи впровадження вітчизняними страховиками екосистемного підходу. Охарактеризовано причини актуальності розбудови екосистем страховими компаніями. На основі дослідженого теоретичного матеріалу вітчизняних та зарубіжних авторів проаналізовано сутність поняття екосистема. Досліджено переваги використання екосистем споживачами страхових послуг. Надано характеристику основним передумовам та позитивним наслідкам впровадження страховиками екосистемного підходу. Визначено основні напрями трансформації бізнес-моделі страховиків в умовах впровадження екоситемного підходу. Рекомендовано найбільш перспективні для страхових компаній напрямки для розбудови екосистем. Сформульовано основні способи реалізації екосистемного підходу страховиками. Наведено приклади успішно діючих екосистем в страховій сфері.
ПУБЛІЧНІ ЗАКУПІВЛІ PROZORRO: РЕГІОНАЛЬНІ ОСОБЛИВОСТІ НА ПРИКЛАДІ ЛЬВІВСЬКОЇ ОБЛАСТІ
Authors: Синютка Наталія , Буковська Наталія
Published: May 2021

Робота актуалізує тему економії бюджетних ресурсів та ефективної політики у сфері бюджетних видатків в умовах цифрових трансформацій. Розкрито теоретичне підґрунтя, причини запровадження та зміст діджиталізації публічних закупівель в Україні, а також означено регіональні особливості закупівель у Львівській області. Розглянуто напрямки впливу цифровізації на прозорість та ефективність видатків окремих органів місцевого самоврядування та досліджено розвиток державної платформи ProZorro. Основними цілями електронної реформи публічних закупівель визначено усунення недобросовісних практик, скорочення корупційної ренти, послаблення адміністративного тиску з боку організаторів торгів, спрощення процедур адміністрування та як наслідок – економія бюджетних видатків. Узагальнено показники електронних закупівель Prozorro на прикладі Львівської області, в тому числі в розрізі кількості та структури проведених тендерів, предмету закупівлі, числа учасників та організаторів торгів, обсягів закупівель та економії бюджетних ресурсів. Доведено, що цифрові трансформації насамперед стимулюють прозорість процедур публічних закупівель та їхню підзвітність громадськості. Водночас обґрунтовано недостатність позитивного впливу Prozorro на зростання конкуренції між учасниками та констатовано незначні обсяги економії бюджетних ресурсів. Авторами означено переваги і недоліки системи Prozorro в Україні на прикладі Львівської області. Запропоновано рекомендації щодо покращання функціонування системи.
ОРГАНІЗАЦІЯ ЕКОЛОГІЧНО ОРІЄНТОВАНОГО ОБЛІКУ В КОНТЕКСТІ РЕАЛІЗАЦІЇ СТАЛОГО РОЗВИТКУ ПІДПРИЄМСТВА
Authors: Сторожук Тетяна , Дружинська Наталія
Published: May 2021

В статті представлено огляд теоретичних напрацювань щодо механізмів реалізації концепції сталого розвитку на рівні суб’єктів господарювання. На основі дослідженого термінологічного апарату в сфері економіки природокористування запропоновано впровадження екологічного орієнтованого обліку та узагальнено теоретико-методичні основи його організації, що забезпечить зацікавлених користувачів інформацією про природно-ресурсний потенціал підприємств. Визначено рівні регулювання екологічного орієнтованого обліку та проблеми його впровадження на підприємствах в сучасних умовах господарювання. Уточнено основні завдання, об’єкти обліку та наведено пропозиції щодо формування показників для задоволення інформаційних запитів користувачів в контексті реалізації концептуальних засад сталого розвитку.
ПЕРСПЕКТИВИ РИНКУ РОБОТИЗОВАНИХ СИСТЕМ В УМОВАХ ПАНДЕМІЇ COVID-19: АНАЛІЗ ФОНДОВОГО РИНКУ
Authors: Гурняк Ігор , Цапко-Піддубна Ольга
Published: May 2021

У дослідженні виявлено основні тенденції ринку робототехніки на основі аналізу динаміки цін акцій компаній – лідерів, які спеціалізуються на виробництві роботизованих систем. Зроблено спробу детермінації наслідків впливу пандемії на ринок робототехніки та тенденції до зміни лідерства серед існуючих компаній. Виявлено вагому роль фондового ринку у відображенні суспільних пріоритетів та виокремлено важливість його ефективного функціонування для розвитку високопродуктивних технологічних компаній, у тім числі компаній з виробництва роботизованих систем. Також, у дослідженні застосовано широкий спектр методів для кількісного аналізу показників, які описують функціонування фондового ринку робототехніки. Серед них: метод лінійної регресії (Linear Regression), підтримки векторної регресії (Support of Vector Regression) та дерева рішень (Decision Tree). Для обрахунків використано пакети мови Python, зокрема: numpy, pandas, matplotlib, scikit-learn, тощо. Підтверджено доцільність використання 5-ти факторної методики Фама – Френч для аналізу сучасних ринків у розрізі їх інституційної довершеності.
РОЛЬ ІНФОРМАЦІЙНО-КОМУНІКАЦІЙНОГО СЕКТОРУ В РОЗВИТКУ НАЦІОНАЛЬНОЇ ЕКОНОМІКИ
Authors: Васильків Богдан
Published: May 2021

У статті розглянуто особливості впливу сектору інформаційно-комунікаційних технологій на національну економіку. Проаналізовано головні тенденції використання інформаційно-комунікаційних технологій за видами економічної діяльності в Україні та динаміку інвестування у цей сектор. Визначено важливість сектору інформаційно-комунікаційних технологій для досягнення прогресивних змін в національній економіці. Специфіковано рівні регулювання сектору інформаційно-комунікаційних технологій в Україні та за кордоном. Встановлено, що за умови впроваджень ефективних рішень щодо подальшого розвитку сектору інформаційно-комунікаційних технологій Україна зможе підвищити рівень конкурентоспроможності на світовому ринку.
Performance Analysis of MIMO System over an In-home PLC Channel
Authors: EL GHZAOUI Mohammed
Published: May 2021

Power line communication (PLC) system is an attractive technology for Smart Grid applications. One key benefit of PLC is its low installation cost because, in PLC technology, we do not need to install any extra cable to extend a network due to the accessibility to low voltage power network. Orthogonal frequency division multiplexing (OFDM) is widely used in PLC networks. Currently, Multiple Input Multiple Output (MIMO) technology is one of the processing techniques appropriate to PLC networks, allowing high data rate. In this work, the MIMO-OFDM system is established to provide better performance over the PLC system by providing communication links with substantial diversity and capacity. However, adapting MIMO to the PLC network involves solving several issues such as MIMO PLC channel modelling and optimisation of the modulation parameters. In this paper, we present measurements results of the transfer function and impulsive noise in the extended frequency range 2-100 MHz. In the simulation part, we evaluate the performance of the proposed receivers in 2×2 MIMO-PLC channels. It is shown that the minimum mean square error (MMSE) receiver can be one of the appropriate candidates for MIMO PLC channels due to its bite error rate (BER) characteristics under impulsive noise.
Synthesis and Characterisation of Zinc Layered Hydroxide Intercalated with 2-Methyl-4- Chlorophenoxyacetic Acid and its Controlled Release Application
Authors: Sheikh mohd ghazali Sheikh ahmad izaddin
Published: May 2021

2-methyl-4-chlorophenoxyacetic acid (MCPA) is herbicide in group of phenoxyherbicides. It has been widely used in agriculture industry to control the weeds population especially thistle and dock. The toxicity of MCPA may impact the environment and harmful for living organisms especially human and aquatic life. This research aimed to intercalate MCPA herbicide with zinc layered hydroxide (ZLH) to form a composites (ZMCPA) and its controlled release properties. In this study, ZMCPA was prepared as an advanced delivery system by ion exchange method and further by hydrothermal treatment. The intercalations of zinc oxide were done with various MCPA concentration of 0.1 M, 0.3 M, 0.5 M, 0.7 M and 0.9 M. Intercalation performances were detected using powder X- ray diffraction (PXRD) and supported by Fourier Transform infrared spectroscopy (FTIR). The study for porosity of the composite was performed by BET analyzer. Among all of these concentrations, 0.5M represented the successful intercalation due to the presence of four sharp and intense harmonic peaks at 2θ with basal spacing of 24.6 Å, 12 Å, 8 Å and 6 Å, respectively. Herbicides release study was conducted in three salt solution, sodium chloride, sodium carbonate and sodium phosphate. Sustain release of MCPA was faster in sodium phosphate solution by 85%. This controlled release study was determined by UV-Vis spectrometry.
Toxicity Effects of Chinese Herbal ‘Five-seeds’ Formulation on Human Kidney HEK-293 and Chang Liver Cells
Authors: Wong Nyet Kui , Teo Yong Min , Er Yan Hong , Chye Soi Moi
Published: May 2021

‘Five-seeds’ formulation (Lycium barbarum, Cuscuta chinensis Lam, Rubus idaeus, Schisandra chinensis, Plantago asiatica) have been used by Chinese medicine practitioner for the treatment of male infertility for a long time. The present study aims to investigate the potential toxicity effects of the individual herb used in ‘five-seeds’ formulation and as a concoction on human HEK293 and Chang liver cells, using cell viability MTT assay and SubG1 flow cytometry analysis. Percentage of cell viability from samples (1, 25, 50, 75, 100 mg/mL) decreased as the concentration increased. Half maximal inhibitory concentration (IC50) values indicated that Cuscuta chinensis, Rubus idaeus and Schisandra chinensis are among the most toxic herb samples on HEK293 cells, with the IC50 values less than 22 mg/mL. On the other hand, Rubus idaeus (IC50 value 20.1 mg/mL) and Schisandra chinensis (IC50 value 17.8 mg/mL) were found to have the highest toxicity effect on Chang liver cells. Plantago asiatica and Lycium barbarum (IC50 more than 67 mg/mL) are the least toxic herbs tested on both human HEK293 kidney and Chang liver cells. ‘Five-seeds’ herbal formulation had IC50 values of 33 mg/mL and 38.5 mg/mL on HEK293 and Change liver cells respectively, suggesting that ‘five seeds’ formulation has modulated the toxicity effect of the mixed herbs used in this formula. Apoptotic cells in SubG1 phase were also found to be significantly low for HEK293 (13.08%) and Chang liver cells (10.17%) with the treatment of 25 mg/mL of ‘five seeds’ formulation. Toxicity effect of five-seeds’ herbal formulation has seemingly been modulated when all the five herbs mixed as a concoction, and potentially non-toxic as a concoction to HEK293 kidney and Chang liver cells. However, more investigations should be done to draw a solid conclusion.
Identification of Recycled Cooking Oil by Varying Number of Au/GO Coated Fiber Optic’s Loop Ring
Authors: Mukhtar Wan Maisarah , Manaf Nur Fatin Liyana , Mohd Halim Razman
Published: May 2021

This study investigates the effect gold nanoparticles (Au)/graphene oxide (GO) coated fibre optics with various number of loop ring in identifying recycled cooking oil based on their frying time. Various layers of gold nanoparticles (AuNP) suspension were deposited onto the substrate via drop casting technique. Few material characterizations were performed such as Fourier Transform Infrared (FTIR) spectroscopy, Ultraviolet Visible (UV-Vis) spectroscopy and refractometer analysis. Three macrobending structures of Au/GO coated fiber optic’s loop ring such as single, double and triple loops with diameter of 1.5cm were formed to generate large area of evanescent field around the fibre and to excite surface plasmon polaritons due to the interaction between AuNPs and analytes. Cooking oil samples with different frying time such as 14 minutes, 28 minutes and 42 minutes were prepared as analytes. The FTIR analysis revealed some changes in the transmittance percent of some bands as well as some slight shifts in the exact position of the bands due to the different of fatty acid composition. As the Au/GO coated fibre optics were immersed into the samples, the penetration depths were obtained as 142.75nm and 168.91nm at operating wavelengths of λ=1310nm and λ=1550nm, respectively. By using 1550nm operating wavelength due to its greater penetration depth than 1310nm, triple loop rings fibre optics coated with two layers of AuNP and one layer of GO exhibits a linear consistency with maximum sensitivity up to 69.17% due to the formation of large evanescent field around the loop area and intense SPP excitation.
CHARTING THE COURSE FOR A BLUE ECONOMY IN NIGERIA: A LEGAL AGENDA
Authors: Gbadegesin Opeyemi Adewale , Akintola Simisola
Published: May 2021

Ocean and coast based economic activities are increasingly being recognized as key drivers for supporting global economies. This move towards a “blue economy” is becoming widespread in view of the paucity of land resources being experienced globally by promoting sustainable and inclusive economic growth using oceanic resources. The sustainability of these ocean-based activities must however be intricately linked with the existence of a comprehensive and cohesive legal framework to align marine conservation with the extractive and exploitative endeavors. This paper analyses the potential for a blue economy in Nigeria and examines the adequacy of the existing legal regimes on marine environmental protection meant to reduce the risks of intensified ocean-based activities resulting into unsustainable environmental impacts. The paper submits that deriving sustainable wealth from ocean-based activities in Nigeria is achievable given the existing legal framework for marine environmental protection in the country. It however recommends the need to further tighten the noose around the implementation protocols of these laws to better integrate the health of the ocean ecosystem into the development of the country’s ocean resources.
FORMATION AND DEVELOPMENT OF THE ECOSYSTEM APPROACH IN INTERNATIONAL ENVIRONMENTAL LAW BEFORE THE CONVENTION ON BIOLOGICAL DIVERSITY
Authors: Suietnov Yevhenii
Published: May 2021

The article analyses general aspects of the formation and development of the ecosystem approach in international environmental law before the adoption and entry into force of the Convention on Biological Diversity. On the grounds of thorough and complex research encompassing the main international environmental agreements and scientists’ views, it is concluded that the issues of protection and conservation of natural ecosystems and implementation of the ecosystem approach had already received wide support at the international level by that time, whereas adopted agreements created the necessary base for the further formation and development of the ecosystem approach as a holistic concept under the Convention on Biological Diversity.
ASSESSMENT OF ENVIRONMENTAL DAMAGE AND POLICY ACTIONS BY USING CONTINGENT VALUATION METHOD: AN EMPIRICAL ANALYSIS OF SAGO INDUSTRIAL POLLUTION IN TAMIL NADU, INDIA
Authors: Periyasamy Palani , Sagar Rajendran
Published: May 2021

The objective of the study focusses on water quality, health impact, loss of agriculture production and livestock population. Primary data was collected from 413 households in the study villages of Kaveripuram, Ammampalayam, Kattukkottai and Mallur by adopting the stratified random sampling technique. The information was also gathered on the sago industrial pollution to estimate the households’ willingness to pay for improved water quality, and the human health impacts, loss of agriculture production, livestock populations and loss of environmental resources in the study area. The outcome of this study will be helpful to determining the sustainable environmental upgradation and policy reform.
MAIN DIRECTIONS FOR IMPROVING THE EFFECTIVENESS OF UKRAINE'S COOPERATION WITH INTERNATIONAL FINANCIAL INSTITUTIONS
Authors: Fedotova Y. , Naumov M.
Published: May 2021

Countries with decline economies for a long time fall into the "poverty trap". The "poverty trap" is an economy condition when mechanisms that hinder development and support themselves are formed. In order to get out of this trap, it is necessary to increase the level of capital per capita by attracting external funds. At the same time, a large number of economists argue that financial assistance from international organizations leads to the decline of recipient countries. The experience of the International Monetary Fund shows that there are examples of both successful programs and those that were poorly implemented.
Our refusal to cooperate with international financial organizations will reduce spending on raising social standards and supporting small businesses, reduce investment in transport infrastructure, and will also result in a forced devaluation of the hryvnia to equalize the balance of payments and, as a result, increase inflation and conduct a restraining monetary policy.
In such circumstances, it is necessary to find out the reasons why our country's interaction with international financial institutions leads mainly to negative consequences, and eliminate them.
There are many reasons for unsatisfied economic dynamics in Ukraine: the level and preliminary trajectory of development, features of the economic system, the structure of the economy, the socio-class structure, the specifics of the relationship between the economy and politics. But the main reason for the failed reforms is related to our country's falling into the inversion trap. The essence of this trap is that efforts to achieve certain goals lead to exactly the opposite results. In such circumstances, the recommendations of international financial organizations aimed at promoting competition and globalization lead to increased negative consequences of the activities of multinational corporations in less developed countries. Thus, Ukraine should not refuse financial assistance from international institutions, but implement internal reforms aimed at increasing labor productivity, reducing energy intensity, and improving the investment climate, creating an effective internal market.
Towards a Safer and More Efficient Neonatal Transfer System in South Africa: A Qualitative Inquiry with Advanced Life Support Paramedics
Authors: Ashokcoomar Pradeep , Bhagwan Raisuyah
Published: May 2021

Introduction

The inter-healthcare transfer of the critically ill neonate is a critical aspect of larger neonatal intensive care, as it influences the safe transport of neonates from the receiving to the referring hospital. It is crucial then that the transfer process be safe and efficient so as not to compromise the already fragile condition of the neonate. The aim of the study was to understand the challenges advanced life support (ALS) paramedics face during neonatal transfers and to understand how the process could be made safer and more efficient. The objectives related to understanding the transfer process, the challenges linked to the critically ill neonate and the difficulties associated with the ambulance vehicle and equipment.

Methods

Using a qualitative research approach we sought the views of ALS paramedics at the forefront of transfers nationally. In-depth interviews were held with eight paramedics in KwaZulu-Natal and four focus group discussions with ALS paramedics in KwaZulu-Natal, Gauteng, Free State and the Western Cape in South Africa. A total of 35 ALS paramedics were involved in these group discussions.

Results

The study uncovered several challenges that paramedics face related to poor organisational preparation for transfer of the critically ill neonate, and other crucial issues that compromise the transfer such as inadequate or defective equipment.

Conclusion

There is a need for greater scrutiny of the transfer process and a commitment from stakeholders to begin addressing the challenges confronting the safe transfer of critically ill neonates.
Rancang Bangun Media Pembelajaran Mengenal Anggota Tubuh Manusia Menggunakan Teknologi Augmented Reality Untuk TK/Paud Berbasis Android
Authors:   Sekolah Tinggi Teknologi Garut, Latifah Ayu , Rahayu Raden Erwin Gunadhi , Adam Faroqi Adam
Published: May 2021

Tubuh manusia tersusun secara struktural menjadi suatu kesatuan fungsional total. dengan tersusunnya tubuh memungkinkan adanya kehidupan seperti yang kita kenal sekarang. Dalam materi pembelajaran mengenal tubuh manusia melalui media buku dan alat peraga, yang prosesnya masih konvensional sehingga berdampak pada kurangnya minat siswa untuk memahami materi lebih baik. Tujuan penelitian ini diharapkan dapat membantu siswa TK/Paud dalam melakukan kegiatan belajar agar siswa tersebut lebih tertarik dan mudah memahami pengenalan anggota tubuh beserta fungsinya. Maka dari itu akan dirancang sebuah aplikasi media pembelajaran yang menggunakan teknologi Augmented Reallity dimana sebuah teknologi yang menggabungkan benda maya ke dalam lingkungan nyata, kemudian teknologi ini di terapkan ke dalam pembahasan pengenalan anggota tubuh manusia bagian luar. Dalam perancangan aplikasi ini metode yang digunakan yaitu dengan metode Multimedia Development Lifee Cycle. Adapun tahapan yang dilakukan pada metode ini adalah konsep, perancangan, pengumpulan data, pembuatan, pengujian, dan distribusi. Hasil dari penelitian ini berupa aplikasi media pembelajaran dengan memanfaatkan teknologi Augumented Reality dalam mengenal anggota tubuh manusia bagian luar dimana pada media pembelajaran ini memiliki fitur-fitur sepeti materi marker, kuis dan tentang, yang dapat diakses secara mobile yang memungkinkan siswa maupun gurunya dapat belajar secara praktis. sehingga meningkatkan pemahaman dalam mempelajari anggota tubuh manusia.