bluuebunny/crossref_metadata_2025 huggingface dataset:
Endoscopic Sphenopalatine Artery Ligation in Posterior Epistaxis
Authors: Sigdel Brihaspati
Published: July 2021

Introduction: Posterior epistaxis brings us with a more challenging condition that can even threaten the life of a patient. Approaching the posterior nasal cavity is not an easy task because of its anatomical complexity and impending vision by turbinate. Increase endoscopic anatomic details of lateral nasal wall and endoscopic expertise with high definition camera leads to a higher success rate of endoscopic sphenopalatine artery ligation.Methods: This prospective study was conducted in patients with refractory posterior epistaxis between January 2017 to December 2019. All patient who had undergone Endoscopic Sphenopalatine artery ligation were included in this study. The site of bleeding was confirmed with the help of a rigid endoscope. Bipolar cauterization or clipping was performed to stop bleeding. Data analysis was done by using SPSS 26.0 version.Results: Twenty nine patients who had undergone Endoscopic sphenopalatine artery for posterior epistaxis were included during this study period. The mean age of the patient was 53.31 ± 18.65years. The site of bleeding was mostly from the left in 20 (75.9%) cases and 10 (34.4%) cases had severe bleeding that needed a blood transfusion. No recurrence of bleeding was found during follow up period. The severity of bleeding was significantly correlated with the age of patients (p<0.003). Out of 29 patient, 27 patients had undergone bipolar diathermy and 2 patients clipping was done.Conclusion: Sphenopalatine artery ligation is an effective management strategy for surgical control of refractory epistaxis. The early timing of sphenopalatine artery ligation may lead to reductions in length of stay.
Spectrum of Injuries Inflicted and their Consequences Following Wild Animals Attack: Retrospective Study
Authors: Hamal Rajkumar Ravi , Lamichhane Suman
Published: July 2021

Introduction: Human-wildlife conflict in the Himalayan kingdom of Nepal is the major concern in and around the protected area due to dramatic change in the ecosystem which includes a rise in human population and their basic requirements that leads to loss of natural habitat for agriculture farming and residential purpose. On the other hand, successful conservation programme in some protective areas leads to a rise in a number of wildlife. This conflict ultimately leads to damage of the crops, property, livestock and the most important human casualties which is the main focus of this study.Methods: This is a hospital-based retrospective study in which 32 patients visiting the emergency and outpatient department with a history of wild animals attack were included. Advanced trauma life support protocol for polytrauma patients was followed. Anti tetanus and anti-rabies prophylaxis given followed by antibiotics coverage. Operative and multidisciplinary interventions were made as per the requirement.Results: Out of the total 32 patients, soft tissue injury Oestern-Tscherne grade 3 was the commonest type of injury seen in 19(59.4%) of the cases, the commonest species involved was rhinoceros 8(25%). The anatomical site most commonly involved was lower limb 10(31.3%). Fracture fixation was required in 8(25%) cases. The commonest complication was wound infection in 5(16%) cases.Conclusion: This research elaborates the current scenario of human-wildlife conflict, facilitates to identify and face the common type of injuries, their complications, the role of a multidisciplinary approach and hence implement certain treatment protocols as a part of effective management to avoid major consequences to public health.
Lactate Clearance as a Predictive Marker of Mortality in Adult Intensive Care Unit
Authors: Joshi Shirish Raj , Gurung Renu , Acharya Subhash Prasad , Parajuli Bashu Dev , Bista Navindra Raj
Published: July 2021

Introduction: Lactate clearance has been widely investigated. Serial lactate concentrations can be used to examine disease severity and predict mortality in the intensive care unit. We investigated the diagnostic accuracy of lactate concentration and lactate clearance in predicting mortality in critically ill patients during the first 24 hours in Intensive Care Unit (ICU).Methods: It was a Prospective, observational study conducted in ICU. Sixty eight consecutive patients having blood lactate level >2 mmol/L were included irrespective of disease and postoperative status. We measured blood lactate concentration at ICU admission(H0), at six hours(H6), 12 hours(H12), and 24 hours(H24). Lactate clearance was measured for H0-H6, H0-H12 and H0-H24 time period.Results: ICU mortality was 33.8%. Lactate clearance was 15.80 ± 17.21% in survivors and 1.73±11% in non survivors for the H0-H6 (p = 0.001) and remained higher in survivors than in non survivors over the study period of 24 hours; 17.97±15 vs. -2.04±19.84% for H0-H12 and 27.40 ± 11.41% vs. -14.83 ± 26.84% for the H0-H24 period (p < 0.001 for each studied period). There was significant difference in lactate concentration (static) between survivors and non survivors during the course of initial 24 hours. The best predictor of ICU mortality was lactate clearance for the H0-H24 period (AUC =0.89; 95% CI 0.78-1.01). Logistic regression found that H0-H24 lactate clearance was independently correlated to a survival status (p = 0.005, OR = 0.922 and 95% CI 0.871-0.976).Conclusion: Blood lactate concentration and lactate clearance are both predictive for mortality during initial 24 hours of ICU admission.
Effect of Cholecystectomy on Serum Lipids and Blood Glucose (Hospital Based Observational Prospective Study)
Authors: Karki Om , Timilsina Bishow Deep
Published: July 2021

Introduction: Association between cholelithiasis and dyslipidemia has been shown in many studies. Recent studies have shown improvement in lipid profile following cholecystectomy. This study aimed to determine the changes in lipid profile and blood glucose level after cholecystectomy.Methods: Seventy-three patients of cholelithiasis were studied prospectively. Total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (HDL-c), low-density lipoprotein cholesterol (LDL-c), atherogenic index (AI) and fasting blood sugar (FBS) levels were estimated pre-operatively. Further, the same parameters were studied after cholecystectomy after one week and one-month intervals. None of the patients received any lipid-lowering drug or dietary restriction. Results were analysed and compared.Results: Of the 73 patients with cholelithiasis, 66% were female and 34% male. The mean age of patients was 40.53± 13.16 years. 56% of patients with cholelithiasis had a deranged lipid profile. TC was significantly decreased at one week (p=0.002) and one month (p=0.00) interval after cholecystectomy while TG levels also decreased significantly at one month postoperative (p=0.001). There were no significant differences in LDL-c however improvement was seen on HDL-c. Blood glucose level also increased significantly (p=0.028) after one month of cholecystectomy.Conclusion: Cholelithiasis is associated with an abnormal lipid profile. Cholecystectomy leads to a significant decrease in some of the parameters of lipid profile and the atherogenic index. The presence of gall stones thus should be perceived in the context of metabolic syndrome, which may be investigated and treated.
Online Healthcare Service Delivery in Nepal during COVID Era: A challenge
Authors: Sharma Prakash
Published: July 2021

N/A
«Табиғи катаклизм» ұғымы: заңдылықтары мен себеп-салдарлық байланыстары
Authors: Мурзинова А.С. , Мамирова К.Н.
Published: July 2021

Мақалада географиялық қабықта тікелей болатын табиғи апаттар туралы айтылған. Мақала мазмұнында авторлар «табиғи апат» ұғымына өзіндік түсінік берген. Табиғи апаттардың жіктемесі ұсынылды және олардың өзара әрекеттестігі орнатылды. Табиғи апаттардың себеп-салдарлық байланыстары олардың факторларын, көрсеткіштерін және олардың салдарын анықтай отырып ашылды. Қауіпті табиғи процестерге баға берілді, сондай-ақ катаклизмдердің көріну масштабы, уақыты, шығу тегі, көріну ауданы, сондай-ақ әсер ету сипаты бойынша жіктеу жүргізілді. Табиғи апаттардың мына типологиясы ұсынылған: деструктивті әсерге ие (дауыл, тайфун, торнадо, жер сілкінісі, жәндіктермен зақымдануы); көлік қозғалысын тоқтатуға әсер ететін (қар жаууы, су басу, нөсер, тұман); сарқылушы әсерге ие (өнімді, топырақтың құнарлылығын, сумен жабдықтауды және басқа табиғи ресурстарды азайту); технологиялық апаттарды (табиғи және техникалық апаттарды) тудыруы мүмкін табиғи апаттар (найзағай, мұз, мұздану, биохимиялық коррозия және т.б.). Сонымен бірге мақалада табиғи апаттарды бақылау және болжау міндеттері қарастырылған. Осы мәселелерді шешу үшін қажетті ақпаратты жинауды, сақтауды және өңдеуді қамтамасыз ететін экологиялық бақылау жүйелерінің синтезіне ерекше назар аударылған. Экоинформатиканың алгоритмдері мен әдістеріне негізделген және ақпараттық технологиялар мен экологиялық кіші жүйелер эволюциясы модельдерін бірлесіп пайдаланудан тұратын аэроғарыштық бақылау жүйелерінің синтезінің жаңа тұжырымдамасы сипатталды. Табиғи апаттардың нақты жағдайлары талданды.
Биоэкологические особенности редких и исчезающих растений при интродукции в условиях Мангышлакского экспериментального ботанического сада
Authors: Гасанова Г.Г. , Иманбаева A.A. , Сырлыбекқызы С. , Шохаева Г.Т.
Published: July 2021

Представлены результаты исследований биоэкологических особенностей 8-и видов травянистых растений (Ixiliorion tataricum, Convallaria majalis, Ornithogalum fischeranum, Convolvulus persicus, Iris aphylla, Tulipa sogdiana, Tulipa schrenkii, Tulipa biflora), включенных в Красную книгу Республики Казахстан (6 видов), Российской Федерации (1 вид) и Мангистауской области (1 вид), при интродукции в условиях Мангышлакского экспериментального ботанического сада. Приведены биоэкологические особенности растений, жизненные формы, их биометрические показатели, итоги фенологических наблюдений в условиях ex situ Мангышлакского экспериментального ботанического сада. Из 8 исследуемых видов 6 являются эфемероидами, 2 — длительно-вегетирующие. Все растения проходят все фазы вегетации, успешно возобновляются семенным и вегетативным путем. Морфометрические показатели объектов исследования превышают аналогичные данные в местах естественного произрастания, что свидетельствует об устойчивости в условиях культуры. По итогам введения в культуру заложен семенной фонд редких и исчезающих растений, предложено применение видов в декоративном садоводстве Мангистауской области.
Популяционно-биоморфологические исследования живокости сетчатоплодной (Delphinium dictyocarpum DC.) в Джунгарском Алатау
Authors: Сапарбаева Н.А.
Published: July 2021

В статье представлены данные попопуляционно-биоморфологические исследования живокости сетча-топлодной (Delphinium dictyocarpum DC.) в Джунгарском Алатау. Цель исследования — изучение распространения, фитоценотической приуроченности, биоморфологии и структуры популяций Delphinium dictyocarpum. Исследования проводились на территории хребта Джунгарского Алатау в 2015–2017 гг. Структура и строение ценопопуляций (ЦП) изучали в 2-х растительных сообществах (описания 1, 2). Для изучения плотности и онтогенетической структуры ценопопуляции в сообществах закладывались трансекты, разделенные на площадки размером 1м2. Тип ценопопуляций определялся по двум классификациям: Б.А. Юрцева (1987, 1988) и Л.А. Жуковой (2013). При изучении биоморфологии и структуры ценопопуляций использовали принятые в современной популяционной биологии растений принципы и методы, разработанные Л.А. Жуковой (2012) и по «Программе и методике наблюдений за ценопопуляциями видов Красной книги СССР» (1986). В результате проведенного исследования выявлено, что Delphinium dictyocarpum в Джунгарском Алатау произрастает на высоте от 1600 до 3200 м над ур. м., занимая верхнюю треть, или привершинную часть, высоких гор. На склонах вид встречается по выходам скал и на каменисто-щебнистых участках в составе кустарниково-разнотравно-живокосовых, злаково-разнотравных лугах. Видовой состав живокосовых сообществ представлен 125 видами сосудистых растений из 95 родов и 37 семейств. Высота надземных органов Delphinium dictyocarpum колебалась от 115 до 250 см.
On the mechanisms of damaging effect of diabetogenic chelators on the endothelium of blood capillaries in pancreatic islets
Authors: Meyramov G.G. , Korchin V.I. , Shaybek A.S. , Kikimbaeva A.A. , Meyramova D.A.
Published: July 2021

Authors showed that administration of diabetic zinc binders (DZC) to animals is accompanied not only by destruction and death of B cells, but also by the development of morphological changes in the capillaries of pancreatic islets at the site of contact with B cells (destruction of the capillary endothelium sites, change in the shape of the capillary lumen, erythrocytes adhesion, perivascular edema, hyperemia). Vascular changes are usually late complications of diabetes. To answer the question: are the described changes in islet capillaries a late complication of diabetes (1) or is it the result of the direct damaging effect of DZC (2) , low doses of DZC that do not cause diabetes in animals are used, forming a toxic zinc-dithizone complex only at B-pole cells in contact with the capillary wall. It was shown that in this case, the capillary wall is damaged in the absence of diabetes, which indicates a direct damaging effect of DZC not only on B-cells but also on the endothelium of islet capillaries. This is not a direct cause of the development of these forms of diabetes, but may be accompanied by circulatory disorders in pancreatic islets and a worsening of the course of the disease.
Age peculiarities of the cardiovascular system and blood microcirculation in students under the influence of dosed physical training
Authors: Sidoryak N.G. , Rozova E.V.
Published: July 2021

We investigated the adaptive capabilities of the cardiovascular system and blood microcirculation in 18–21-year-old students under the influence of dosed physical training. It was shown that there are significant age-related differences in the indicators of the cardiovascular system function at rest. By the 21-th year the majority of the studied parameters have reached the level characteristic of adult young men. After dosed phys-ical training the indices of the cardiovascular system function increased to a greater or lesser extent, and the greatest increase was observed in 21-year-old students. In younger age groups the changes were less effective, which characterizes the adaptive capabilities of the cardiovascular system depending on age. A marker indicator of the blood microcirculation system functioning — a microcirculation parameter that determines the direction of the microcirculation response to a dosed physical training — has been identified. It was found that among students of the 1st subgroup (low level of the microcirculation parameter) after physical activity it increased, and among students of the 2nd subgroup (high level of the microcirculation parameter) it mainly decreased, which characterizes the inclusion of various regulatory mechanisms in the blood microcirculation system. A decrease in the index of microcirculation efficiency under the influence of physical training was shown (the most significant in younger students). Such features can be explained by the lack of development of compen-satory reactions in the microcirculation system.
Considerations regarding liver current pathology
Authors: Chesca A. , Sandle T. , Abdulina G.A.
Published: July 2021

This work presents reasoning about liver pathology. Liver pathology is an area of interest due to the growing number of medical cases worldwide. The factors associated with the appearance of this pathology are those that relate to individual lifestyle. Liver pathology studies are performed up to the biomolecular level, involving cytochrome P450 2E1 (CYP2E1). With a normal liver, subject to aging and the aforementioned risk factors, there are changes in liver structure, which often can lead to changes arising from nonalcoholic hepatic steatosis (NASH). Under certain circumstances this degenerates into chronic hepatitis, which often goes undiagnosed and this can lead to liver cirrhosis. Due to gradual changes in the liver, medical interventions are often delayed. Importantly, structural analysis of microscopically processed liver fragments will reveal changes in all structural elements of the liver, from lipid loading in hepatic steatosis to inflammatory, necrotic, destructive, fibrotic changes in liver cirrhosis, including somewhat similar changes in types of chronic hepatitis. The presented images and the described structural changes in the liver are an important criterion for liver damage, including preclinical pathology.
Теміртау қаласы ауа алабының ластануының синоптикалық жағдайлары
Authors: Бауыржанова А.
Published: July 2021

Мақалада Қарағанды облысының Теміртау қаласының атмосфералық ауасының ластану жағдайы және атмосфераның ластану индексінің (АЛИ) динамикасы қарастырылған. АЛИ қаладағы негізгі 5 ластаушы заттар бойынша, яғни олардың ішінде: қалқыма бөлшектер, азот диоксиді, көміртек оксиді, фенол және аммиак заттарының концентрациялары арқылы есептелген. Автор Теміртау қаласының ауа алабының ластануының синоптикалық жағдайларын, яғни циклон және антициклон, жыра және жота сияқты барикалық құрылымдардың қала ауасындағы зиянды заттардың шекті мүмкіндік концентрацияларын, сақталу мерзіміне әсерін қарастырған. Сонымен қатар ауа алабының ластануына қолайлы метеорологиялық шамалар, әсіресе, ластаушы заттардың тасымалдануына себепші жел сияқты шаманың ластану мәселесіне әсері және ластануда трансшекаралық тасымалдауды ескеру мақсатымен оның берілген мерзім бойынша қаладағы бағытының қайталанушылығының диаграммасы ұсынылған. Мақала материалдарында арнайы берілген мерзім бойынша барикалық топография карталары, синоптикалық жер карталары пайдаланылып, оларға талдау жасалған. Мақалада карталардың талдауы бойынша арнайы мерзімдегі қала бойынша зиянды заттардың концентрацияларының үлкен мөлшерде жиналуына қолайлы синоптикалық жағдайлардың орын алу мәселесі және шарттары сипатталған. Зерттелген сұрақтар біздің еліміздің экологиясына, әсіресе Теміртау қаласы сияқты үлкен өндірістік кешені бар қалалардың экологиялық жүйесіне, оның ішінде атмосфералық ауаның сапалық жағдайына көз салатын, өткір жаһандық мәселелеріне назар аударатын жаратылыстану саласындағы мамандарға, саясаткерлер мен қоғам қайраткерлеріне қызығушылық танытады.
Birchbark documents concerned with the law and legal proceedings in mediaeval Novgorod
Authors:   Moscow State University, Rybina E.
Published: July 2021

This paper reviews the birchbark documents indicating the state of the legal relations in mediaeval Novgorod. It presents the list of juristic-legal terms (over 60) of which many were first recorded in birchbark letters. The article discusses in detail the birchbark letters mentioning legal procedures, hereditary law, notions about law of the mediaeval Novgorodians. A special attention is focused on the texts of promissory notes and penalty formulas.
Felt caps of the 14th century from Duboshin II site in Novgorod
Authors:   Novgorod history museum, Tarabardina O. , Petrov M. ,   Novgorod history museum, Zubkova E. ,   Pskov-Izborsk Integrated Museum-Reserve
Published: July 2021

This paper is devoted to mediaeval headdresses — felt caps found during archaeological investigations at the Slavensky Konets (district) in Novgorod at excavation Duboshin II. It comprises their characterisation, archaeo­ logical context of the findings, belonging to particular complexes of the buildings at the urban properties and chronology.
Results of excavations of the settlement of Galik 11 in 2020
Authors:   Institute for the History of Material Culture of the Russian Academy of Sciencestitute of Archaeology Russian Academy of Sciences, Gorodilov A. , Razzak M. ,   Institute for the History of Material Culture of the Russian Academy of Sciencestitute of Archaeology Russian Academy of Sciences
Published: July 2021

This paper discusses the results of excavations of the settlement-site of Galik 11, situated on the lower Luga River. The materials from the excavations represent three complexes of different periods with finds of the late Neo- lithic — Bronze Age related to the cultures of the pit-comb ware, corded ware, and textile ceramics. The findings of dif- ferent groups are separated planigraphically. The excavations have resulted in obtaining reference collections of materials of the corded ware and textile ceramics of the Bronze Age in the region under consideration.
Zapolye-3 — a site of the “pre-sopki” culture in the Upper Luga River region
Authors:   Institute for the History of Material Culture of the Russian Academy of Sciencestitute for the History of Material Culture of the Russian Academy of Sciencestitute of Archaeology Russian Academy of Sciences, Platonova N. , Zheglova T. ,   Saint Petersburg City Palace of Youth Creativity
Published: July 2021

Under the mound of sopka no. 4 near the village of Peredolsky Pogost, there were revealed flat-grave burials in small pits and a concentration of pits of an unclear purpose including pillar holes. Some of them were 14С dated to within the interval of the 4th–7th century. The pottery from two of the pits has parallels in the “pre-sopki” antiquities and the culture of the Pskov long barrows. The buried topsoil in this area is almost sterile, but two finds of the Roman period were recovered from the surface of the virgin soil layer. Possibly, the cultural layer was deposited in the course of ritual activities performed in the sacral zone of the burial ground in different epochs.
Kurgan traditions of the North-West of the Russian Plain: the problem of the evolution and continuity
Authors:   Saint-Petersburg State University, Mikhaylova E.
Published: July 2021

The funerary kurgan traditions of the 1st millennium (culture of the Pskov long barrows, a kurgan presumably of the East-Lithuanian type, Mologa-Suda kurgans, sopki) are considered in this paper in comparison with the data on unmounded cemeteries with cremations. Many features of the burial rite of the two groups of cremation burials are similar (scattered deposition of the cremated remains, their incompleteness, the presence of collective burials, the presence of animal bones). The kurgans with inhumations of the Old-Russian period demonstrate a qualitatively dif- fering phenomenon as part of the Old-Russian Christian culture spreading, together with other cultural features, from urban centres to the rural localities.
Elite objects from kurgans on the Oyat River (Leningrad Oblast)
Authors:   Karelian Research Centre of RAS, Kochkurkina S. , Orfinskaya O. ,   CENTER FOR EGYPTOLOGICAL STUDIES RAS
Published: July 2021

This paper considers fragments of elite objects of the 10th–12th century from kurgans on the Oyat River. It is silk textiles, embroidered collars, and gold-woven threads. The authors arrived at the conclusion about the high price of these objects and the hypothetical place of their manufacture. Possibly, there were centres to which silk cloths and silk threads were imported and where women, to the extent of their skill, embroidered some details of clothes, then distrib- uted throughout a considerable territory. The rather inconsiderable qualitative level of the embroidering does not allow us to attribute the collars from the Ladoga kurgans to products of the grand-ducal workshops but the expensive materials (silk and gold-woven threads) could not have been objects of simple domestic needlework.
Ornaments and evidence of jewellery production from the early mediaeval layer of the fill of the ancient ditch at Ryurik Gorodishche
Authors:   Institute for the History of Material Culture of the Russian Academy of Sciences, Dorofeyeva T.
Published: July 2021

This paper presents a review of ornaments and objects related with jewellery production provenient from undisturbed early mediaeval deposits with organic remains of the 9th–10th century in the fill of the ancient ditch at Ryurik Gorodishche (Rurik’s Hillfort). The categories of finds here discussed include 49 items from almost 750 artefacts here uncovered.
“During archaeological works, I fulfilled zealously, carefully and unquestioningly the duties entrusted to me…”. Supervisor of the Kerch Museum Samuil Petrovich Petrenko
Authors:   Institute for the History of Material Culture of the Russian Academy of Sciences, Medvedeva M.
Published: July 2021

This paper considers the activities of the supervisor of the Kerch Museum of Antiquities S. P. Petrenko basing on documents of the Imperial Archaeological Commission from the collection of the Scientific Archives of the Institute for the History of Material Culture (IHMC) RAS. Petrenko had been working in this position for 27 years and participated in excavations of many sites significant for Russian archaeology in the late 19th — early 20th century. Here the unpublished paper by N. I. Repnikov devoted to the contribution of S. P. Petrenko to archaeology is first completely presented.
The earliest archaeological materials from excavations of 2013–2014 in the area of Yaroslavovo Dvorishche
Authors:   Novgorad history museum, Andrienko A. , Shureyev A. ,   Novgorad history museum, Zheltova M. ,   Institute for the History of Material Culture RAS
Published: July 2021

This paper considers the archaeological artefacts from the lower horizon of cultural deposits of the site excavated in 2013–2014 at Yaroslavovo Dvorishche in Veliky Novgorod. On the basis of morphological examination of the finds, three chronological groups have been distinguished dating from the mediaeval period (10th–11th century), early Iron Age and the Early Metal Age.
Development of an algorithm for object access system automation based on face recognition using a neural network
Authors:   State University of Telecommunications, Orlenko V. S. , Kolosinsʹkyy I. I.
Published: July 2021

The article deals with the technical side of face recognition — the neural network. The advantages of the neural network for identification of the person are substantiated, the stages of comparison of two images are considered. The first step is defined as the face search in the photo. Using several tests, the best neural network was identified, which allowed to effectively obtain a normalized image of a person’s face. The second step is to find the features of the person, for which the comparative analysis is performed. It was this stage that became the main point in this article — 16 sets of tests were carried out, each test set has 12 tests inside. Two large datasets were used for the study to evaluate the effectiveness of the algorithms not only in ideal circumstances but also in the field. The results of the study allowed us to determine the best method and neural model for finding a face and dividing it into parts. It is determined which part of the face the algorithm recognizes best — it will allow making adjustments to the location of the camera.
Studying of the scrambling coding sequence performance based on the ninth order primitive polynomial in telecommunication networks of information systems
Authors:   State University of Telecommunications, Plyushch O. G. , Vyshnivskyi V. V. , Prokopov S. V. , Ishcheryakov S. M.
Published: July 2021

Scrambling coding sequences find wide application in telecommunication networks to improve noise immunity and information transmission concealment. There are many different scrambling coding sequences with different autocorrelation properties from which one can be chosen. In the previous paper the authors researched a possibility of using scrambling coding sequences built on the base of the primitive eighth degree polynomial in telecommunication networks of information systems to enhance noise immunity and concealment of information transmission. This sequence, consisting of two hundred and fifty five chips, showed some good performance in terms of information transmission quality indicators. Nevertheless, some of its limitations were also revealed, which are mostly linked to the number of used chips. This paper aims to overcome the problems by proposing to use scrambling coding sequences based on the ninth degree primitive polynomial. The required polynomial was selected and the needed scrambling sequence generated. This scrambling coding sequence includes five hundred and eleven chips. Computer simulation helped to establish that scrambling coding sequence synthesized using this polynomial permits to substantially improve information transmission quality indicators as compared to the case of the scrambling coding sequence based on the eighth degree polynomial. For example, the interfering signal and internal noise to desired signal ratio, for which reception of transmitted bit sequence is still possible, increased by three decibels. It is clearly linked to the doubling of the number of the used chips. To preserve the transmission rate, the occupied frequency spectrum needs to be doubled. An inference is made as to a possibility of using the synthesized coding sequence in practical realizations of telecommunication channels.
Evaluation of opportunities of synthesis of the broken communication at creation of combined digital synchronous-­phase demodulator of modern system telecommunications
Authors:   State University of Telecommunications, Turovsʹkyy O. L.
Published: July 2021

The effectiveness of modern radio communications directly depends on the quality of use of individual devices and subsystems of their composition. Such spaces include, in particular, tracking demodulators of frequency-modulated and phase-modulated signals. The task of improving the accuracy and speed of analog-digital SFDs is urgent. One of the directions of which can be the synthesis of digital open compensation communication directly in their synchronization subsystem, namely the construction of iterative analog-digital SFDs, provided that the main and auxiliary circuits of their synchronization systems can be both digital and analog. The issues of synthesis of open communication in subsystems of phase synchronization of digital synchronous phase demodulators of modern telecommunication systems are considered in the work. On the example of the selected scheme of construction of a digital synchronous phase demodulator, the synthesis of an open compensation connection in its construction structure for a steady state operation is performed. The obtained and presented functional dependences of the transfer function of the synchronous-phase demodulator with open communication allow to ensure the order of astatism of the system is 2. Analysis of the obtained transfer function showed that it can be implemented on microprocessors and has the ability to pre-analyze it on a computer without operations of integration and approximate calculation of transition matrices. A further direction of research initiated in this work is the synthesis of open coupling in synchronous-phase demodulators with a higher order of astatism against the background of additive Gaussian noise, taking into account the phase instability of the generators.
ФЕШН-ДИЗАЙН В УМОВАХ ЦИФРОВИХ ТРАНСФОРМАЦІЙ КУЛЬТУРИ
Authors: Гардабхадзе Ірина Анатоліївна
Published: July 2021

Мета статті — аналіз механізмів реалізації стабілізуючого потенціалу фешн- дизайну у ході трансформаційних процесів культури в умовах цифровізації. Стаття присвячена вирішенню актуальної проблеми управління сталим розвитком фешн- дизайну під впливом дестабілізуючих факторів. З безлічі чинників для аналізу обрана група факторів дизруптивного впливу інформатизації на розвиток фешн-дизайну. Методологія дослідження. Для досягнення поставленої мети був використаний міждисциплінарний системний аналіз з комбінуванням результатів історіографічного аналізу з елементами компаративного, функціонального і контент-аналізу. Наукова новизна — вперше запропонована методика гуманізації культурних орієнтирів цільових груп користувачів засобами фешн-дизайну. Показано, що реалізація кожного інноваційного фешн-проєкту може бути розглянута з позицій моделі трикутника факторів впливу на результати проєктування. За таких умов управління проєктом спирається на балансування трикутника факторів впливу, перша вершина якого утворюється джерелом-носієм новизни дизайнерських рішень, друга є джерелом- носієм тенденцій моди, третя створюється особливостями індивідуальних характеристик особистості, в тому числі її естетичними орієнтирами та базовими установками підсвідомості. Висновки. Було показано, що для ефективного вирішення завдань фешн-дизайну в умовах коливань ідеології проєктної творчості та швидких змін цифрового інструментарію проєктний підхід доцільно направити на балансування трикутника факторів впливу. В ролі одного з дієвих шляхів балансування запропоновано гармонізацію творчого першоджерела з естетичними орієнтирами підсвідомості індивіда. Використання фешн-дизайнерами у процесі проєктування методу балансування трикутника впливу дозволяє керувати якістю продуктів моделювання за трьома показниками одночасно — інноваційністю, художньо- естетичним рівнем і відповідністю тенденціям моди. А гармонізація характеристик моделей з внутрішніми установками особистості надає свій внесок у підтримку сталого розвитку фешн-дизайну.
ТВОРЧА ДІЯЛЬНІСТЬ НЕСТОРА ГОРОДОВЕНКА В УКРАЇНІ ТА ЗА КОРДОНОМ
Authors: Турчак Леся Іванівна
Published: July 2021

Мета статті — з’ясувати внесок Нестора Городовенка в музичне мистецтво не лише України, а й у світову культуру. Методологія дослідження ґрунтується на принципах системності та історизму. У статті використано методи наукового дослідження, серед яких дослідницько-пошуковий та джерелознавчий, системно-аналітичний, біографічний та метод типологічного аналізу, а також культурологічні й мистецтвознавчі теорії та розробки (теорія сучасного хорового мистецтва, теорія інтерпретації). Наукова новизна полягає у дослідженні творчої діяльності педагога, громадського діяча, хормейстера Н. Городовенка з акцентом на популяризацію національно-пісенної спадщини та хорової музики українських композиторів. Висновки. Проаналізовано творчий шлях Н. Городовенка і доведено, що попри відсутність спеціальної музичної освіти, маестро, опираючись на пісенну практику українського народу, власний талант і музичну самоосвіту, зміг розвинути і презентувати українське хорове мистецтво як в Україні, так і за її межами. Його творча діяльність за кордоном допомагала зберегти національну і культурну ідентичність та знайомити світ із українською культурою та мистецтвом. Зауважимо, що попри грандіозні успіхи за кордоном, в УРСР про тріумфи й здобутки хору і хормейстера інформації не було. Своєю діяльністю він популяризував національно-пісенну спадщину та хорову музику українських композиторів. Виявлено, що серед вагомих здобутків Н. Городовенка успішна діяльність керованих ним колективів; розвиток української хорової музики; виконання європейської духовної музики; творча діяльність у мистецькому середовищі української діаспори Канади у 50–60-х рр. ХХ ст. З’ясовано, що авторська методика творчої діяльності Н. Городовенка є вагомим внеском у розвиток і інтерпретацію української народної пісні, популяризацію хорової музики та української культури.
Hepatocellular Carcinoma Treatment by Using TACE: a literature review
Authors: Necula Bogdan Radu , Netedu Anamaria , Hogea Mircea Daniel
Published: July 2021

Hepatocellular Carcinoma (HCC) is the most prevalent liver malignancy. Trans arterial chemoembolization (TACE) is the gold standard treatment for Barcelona Clinic Liver Cancer (BCLC) stage B patients, who are considered to have unresectable HCC. In the following review it is shown that BCLC stage B group is too heterogenous, at the same time some patient may present a better outcome by receiving a more aggressive procedure, while others may benefit from systemic therapy. Those methods suggest which is the optimal treatment for BCLC stage B patients and when to apply it. Apart from alternatives to TACE, this review has highlighted other situations when TACE may be used – BCLC stage A or C.
Optic Nerve Pilocytic Astrocytoma With Leptomeningeal Dissemination – Case Report
Authors: Mărginean Claudia Raluca , Simu Patricia Maria Luminița , Tiucă Robert Aurelian , Mariean-Șchiopu Alexandru , Simu Iunius Paul
Published: July 2021

"Pilocytic astrocytoma is the most frequent type of brain tumor diagnosed during childhood. It originates from midline structures and is associated with good prognosis, with an estimated survival rate higher than 95%. We presented the case of a male patient diagnosed at the age of 6 with pilocytic astrocytoma located in the right optic nerve with associated chiasm infiltration. Incomplete resection of the tumoral process was performed, without any additional therapy, as association of chemotherapy or radiotherapy is still controversial among specialists. The patient had an unpredictable severe evolution of the disease, with associated leptomeningeal dissemination and extreme worsening of neurological and endocrinologic status. Six years after diagnosis, despite complex medical efforts the patient died.
This article raises awareness of leptomeningeal dissemination risk, a rare evolution in cases of pilocytic astrocytoma. Early diagnosis, complete tumoral resection, tumor location and careful long-term follow up are key factors for long-term survival.
"
Analisis Pengaruh Sedimen Terhadap Kerusakan Material Pada Runner Turbin Air
Authors: Suwasti Sri , Suci Pratiwi Andi , Mansur Farid
Published: July 2021

Dampak yang ditimbulkan oleh sedimen tidak hanya abrasi dan erosi terhadap lingkungan, melainkan juga terjadi abrasi dan erosi pada sudu turbin. Konsentrasi sedimen yang tinggi  dapat mengakibatkan abrasi dan erosi pada sudu turbin. Selain konsentrasi, ukuran sedimen juga dapat menimbulkan mikroerosi pada sudu turbin. Penelitian ini bertujuan mengidentifikasi penyebab dan pengaruhnya terhadap kerusakan sudu turbin. Di samping itu, juga bertujuan menentukan pengaruh konsentrasi sedimen terhadap kerusakan sudu turbin. Pengujian dilakukan dengan empat variasi konsentrasi sedimen (5%, 8%, 10% dan 12%).Pengujian morfologi mikroerosi dengan menggunakan Microscopy Digital Sistem Akuisisi Data di Laboratorium Sistem Pembangkit Energi Jurusan Teknik Mesin Politeknik Negeri Ujung Pandang. Pada pengujian morfologi mikro erosi di dapatkan hasil bahwa semakin besar konsentrasi yang di berikan semakin cepat pula terjadi kerusakan pada material. Kerusakan yang terjadi pada material carbon steel akibat adanya tumbukan air yang mengandung sedimen ialah abrasi dan erosi dengan variasi konsentrasi sedimen dan waktu yang sama. Material yang lebih cepat mengalami kerusakan terjadi pada material carbon steel diakibatkan sifat fisik pada material carbon steel lebih rendah dibandingkan dengan sifat material stainless steel.
INTEGRASI METODE PADA PEMBELAJARAN TEMATIK IPS DAN PKN PADA MASA PANDEMI COVID-19 DI SDIT ALAM GARUT
Authors: Dr. Tetep , Purnamasari Maharani
Published: July 2021

The COVID-19 pandemic has had a significant impact on the world of education, especially learning at school, learning challenges and offline has become a relentless tug of war until now. The use of learning methods demands teacher creativity in current conditions, so the ability to integrate various learning methods must continue to be carried out. This study examines the integration of learning methods in Social Studies and Citizenship Education thematic learning carried out by classroom teachers at SDIT ALAM GARUT during the COVID-19 pandemic. This research was conducted using a descriptive approach where data collection was done by interview, observation and documentation. Interviews were conducted with teachers, students, and parents, observations with teachers, students, and parents, as well as observing several supporting documents. The results showed that there was an integrated use of methods in Social Studies and Citizenship Education thematic learning at SDIT Alam Garut, including: lectures via voicenotes, direct or limited demonstrations via video, giving through photos, written assignments given via WhatsApp or students or parents taking assignments at the school. schools, and practices that are videoed and sent via the WhatsApp application. The use of this integration of learning methods is solely to maintain the continuity of the learning process for students at SDIT Alam Garut during the Covid 19 Pandemic.
Dinamika kebudayaan Suku Baduy dalam Menghadapi Perkembangan Global di Desa Kanekes Kecamatan Leuwidamar Kabupaten Lebak Provinsi Banten
Authors: Bahrudin Babul , Zurohman Achmad
Published: July 2021

Penelitian ini bertujuan untuk menganalisis dinamika kebudayaan suku Baduy dalam menghadapi perkembangan global. Lokasi penelitian ini di Desa Kanekes Kecamatan Leuwidamar Kabupaten Lebak Provinsi Banten. Penelitian ini menggunakan pendekatan kualitatif. Teknik pengumpulan data dilakukan melalui wawancara mendalam, observasi dan dokumentasi. Keabsahan data digunakan teknik triangulasi sumber dan triangulasi teori. Teknik analisis data menggunakan pengumpulan data, reduksi data, penyajian data, dan verifikasi data atau kesimpulan. Fokus kajian dalam penelitian ini untuk menganalisis realitas suku Baduy menghadapi perkembangan global dari segi 1) sistem pengetahuan, 2) sistem peralatan hidup dan teknologi, serta 3) sistem mata pencaharian hidup. Hasil penelitian ini menunjukkan bahwa unsur-unsur kebudayaan suku Baduy di tengah arus perkembangan global mulai mengalami perubahan. Sudah banyak masyarakat suku Baduy melanggar hukum adat yang sebelumnya menjadi pedoman hidup mereka. Perubahan yang terjadi terlihat dari perubahan sistem peralatan hidup dan teknologi yang sudah mulai modern, perubahan sistem pengetahuan, dan mata pencaharian hidup yang juga sudah berubah. Perubahan unsur-unsur kebudayaan tersebut karena beberapa faktor, diantaranya karena banyaknya wisatawan, kebijakan pemerintah untuk pembangunan nasional, serta perkembangan teknologi komunikasi yang mulai masuk di wilayah suku Baduy.
Academic Performance and the Role of Self-directed Learning, Self-esteem, and Grit among Nursing Students
Authors: Oducado Ryan Michael Flores
Published: July 2021

Background: understanding the factors affecting academic performance is important to support and promote the academic success of students. While there have been several studies on nursing students’ academic performance, the role of self-directed learning readiness, self-esteem, and grit among Filipino nursing students have not been well documented.Purpose: This study aimed to determine the relationship of self-directed learning readiness, self-esteem, and grit to the perceived academic performance of nursing students.Methods: This correlational research was conducted among undergraduate sophomore nursing students in a higher education institution in the Philippines using adopted research instruments. Spearman’s rho tested the correlation between variables.Results: The results indicated that self-directed learning readiness (rs=.360, p=.000), self-esteem (rs=.301, p=.000), and grit (rs=.186, p=.023) were significantly related to the academic performance of sophomore nursing students.Conclusion: psychological resources such as self-directed learning readiness, self-esteem, and grit contribute to students’ academic performance. Strategies that encourage self-directed learning, increase self-esteem, and cultivate grit are needed to support student's academic success in nursing school.
Identifying GNG4 might play an important role in colorectal cancer TMB
Authors: Zhao Hongcan , Sheng Danli , Qian Ze , Ye Sunyi , Chen Jianzhong , Tang Zhe
Published: July 2021

BACKGROUND: Colorectal carcinoma (CRC) is one of the most leading cause of cancer death all over the world. The tumor immune microenvironment is illustrated to be necessary for the progress of CRC. And the accumulating evidence indicated that tumor mutation burden (TMB) is effective in differentiating responding population of immune checkpoint inhibitor (ICI) therapies in various cancers. In this study, we aimed to evaluated the potential relationship between TMB and the recurrence risk of CRC. METHODS: The transcriptomic and clinical data of CRC patients were collected from The Cancer Genome Atlas (TCGA) database (n= 382). Then the genomic analysis of tumor mutation burden and tumor purity were conducted by a computational method based on transcriptomic data. RESULTS: Firstly, we accessed the distribution of TMB and preferences at the gene and mutation level using somatic mutation data from TCGA data about CRC. We identified that high TMB predicted better prognosis of CRC patients. Secondly, the differentially expressed genes (DEGs) between the low TMB and high TMB group was clarified. Then the protein-protein interaction (PPI) analysis was performed, and the results confirmed ten hub genes among the DEGs. Utilizing the GEPIA web-tool, we discovered that GNG4 was up-regulated in tumor tissues, and GNG4 was related to the overall survival (OS) and tumor free survival (TFS) of CRC patients. Therefore, we considered GNG4 was essential for the tumor immune microenvironment of CRC. Furthermore, we also accessed the protein level of GNG4 in CRC and liver metastases from CRC. CONCLUSIONS: In this study, GNG4 was demonstrated to be the key element of the CRC TMB, which will be essential for the ICI therapy of CRC. Besides, GNG4 was up-regulated in CRC and liver metastases from CRC tissues. Thus, we thought that GNG4 might play an important role in colorectal cancer TMB and induce its metastasis in liver.
A graphical approach for multiclass classification and for correcting the labeling errors in mislabeled training data
Authors: Merkurjev Ekaterina
Published: July 2021

Multiclass data classification, where the goal is to segment data into classes, is an important task in machine learning. However, the task is challenging due to reasons including the scarcity of labeled training data; in fact, most machine learning algorithms require a large amount of labeled examples to perform well. Moreover, the accuracy of a classifier can be dependent on the accuracy of the training labels which can be corrupted. In this paper, we present an efficient and unconditionally stable semi-supervised graph-based method for multiclass data classification which requires considerably less labeled training data to accurately classify a data set compared to current techniques, due to properties such as the embedding of data into a similarity graph. In particular, it performs very well and more accurately than current approaches in the common scenario of few labeled training elements. Morever, we show that the algorithm performs with good accuracy even with a large number of mislabeled examples and is also able to incorporate class size information. The proposed method uses a modified auction dynamics technique. Extensive experiments on benchmark datasets are performed and the results are compared to other methods.