bluuebunny/crossref_metadata_2025_split huggingface dataset:
Radial increment and defoliation of Pinus sylvestris (L.) on sandy soils relate to summer temperatures and ground water level
Authors: Pajtík Jozef , Sitková Zuzana , Marčiš Peter , Bošeľa Michal , Pavlenda Pavel , Konôpka Bohdan 
Published: May 2022

Abstract
The study deals with the analysis of the impact of climate and ground water table level on radial increment and defoliation of Scots pine (Pinus sylvestris L.) growing on sandy soils. The research was performed in the area of the Borska nížina (i.e. Borská Lowland, situated in southwest of Slovakia), where a substantial die-back of pine trees has been observed in the last decade. Increment measurements and defoliation assessment were performed at 150 adult trees of Scots pine growing at three permanent monitoring plots within the international network of ICP Forests during the years 1989–2018. We examined the impact of climatic and hydrological factors on selected features of pine using the methods of correlation analysis and linear mixed models. Statistical analyses confirmed that the annual radial increment of Scots pine significantly depended on the mean air temperature from June to August, and mean ground water level in the mentioned months. These two factors also significantly correlated with crown defoliation. The factors explained 26% and 32% of increment and defoliation variability, respectively. From the long-term perspective, our analyses indicated that the decrease of ground water level by 0.5 m in summer resulted in the increase of defoliation by 10%. The obtained results indicate a further increase of Scots pine die-back on easy-to-dry sandy soils in regions with low precipitation totals, particularly considering the ongoing climate change and its inherent factors.
Study of total antioxidant activity of green tea leaves (Camellia sinensis L.)
Authors: Maslov Olexander , Kolisnyk Sergei , Komisarenko Mykola , Golik Mykola 
Published: May 2022

Summary

Introduction: There is a high interest in creating medicines, dietary supplements, cosmetics including plant extract with antioxidant activity. For understanding whether plant extract has a maximum level of antioxidant activity it is important to know the total antioxidant activity of raw material.

Objective: The main goal of study was to find out the green tea leaves total antioxidant activity.

Methods: The antioxidant activity was measured by potentiometric method. Total phenolic, flavonoids, catechins and hydrocinnamic acids derivatives were quantified using Folin-Ciocalteu, aluminium chloride, vanillin and sodium molibdate methods, respectively.

Results: The green tea leaves total antioxidant activity was 660.75 mmol-eqv./mres. dry weight. A significant correlation was observed between the amount of phytochemicals and antioxidant activity, which indicated its main role in antioxidant activity.

Conclusion: The research showed that the green rea leaves possess a high value of antioxidant activity and it is a good source of phenolic constituents.
Brand as a Customer Value Driver: Relationships with Customer Engagement
Authors: Maciejewski Grzegorz , Krowicki Piotr 
Published: May 2022

Abstract
This article presents theoretical considerations regarding the concept of ‘brand’, identifying it as a value driver for customers and defining how important a brand is in the value creation process. Brand-related constructs (brand strength, brand value, brand equity, brand awareness, brand knowledge, brand reputation, brand image, and brand identity) found in the literature are defined, paying particular attention to brand equity as a construct more closely related to the concept of perceived value. The article also discusses the various levels of meaning of a brand and presents the concept of customer engagement (CE), identifying the relationships between a brand, the concept of perceived value, and customer engagement. The conclusions highlight the strong relationships between brands and the category of customer value. Additionally, the article presents the phenomenon of customer engagement as a theoretical perspective for brand identification in the process of customer value creation.
Clinical significance of serum HMGB1 in COPD and correlation with severity of airflow restriction and immune function
Authors: Xu Weiguo , Wu Junhua , Feng Yong , Zhu Jing , Cui Rong 
Published: May 2022

Abstract

Background: To explore the serum HMGB1 levels in patients with smoking-induced chronic obstructive pulmonary disease (COPD) and the correlations with airflow restriction and immune function.

Methods: A total of 136 COPD patients were divided into mild, moderate and severe + extremely severe groups. Thirty-five healthy subjects were selected as control group. Serum HMGB1 levels were measured by ELISA, and the correlations with pulmonary and immune function indices were analyzed. Receiver operating characteristic (ROC) curve was plotted.

Results: PaO2, eosinophil count, FEV1/FVC, FEV1% pred, and IgA, IgM, IgG levels of COPD patients were lower than those of control group, and decreased with airflow restriction aggravation. PaCO2, leukocyte count, neutrophil percentage, modified British Medical Research Council (mMRC) scale and COPD Assessment Test (CAT) scores, D-Dimer (D-D), PCT, CRP and HMGB1 levels, myeloid dendritic cell (mDC) and plasmacytoid dendritic cell (pDC) counts, and mDCs/pDCs of COPD patients exceeded those of control group, and increased with airflow restriction aggravation (P<0.05). HMGB1 levels of COPD patients were negatively correlated with FEV1/FVC, FEV1% pred, IgA, IgM and IgG levels and positively correlated with mDC count, pDC count and mDCs/pDCs (P<0.0001). The area under ROC curve was 0.883, the optimal cutoff value was 3.63 ng/mL, and sensitivity and specificity were 86.7% and 85.9%, respectively.

Conclusions: Serum HMGB1 level in patients with smoking-induced COPD rises with airflow restriction aggravation and has significant correlations with the decline of pulmonary and immune functions, with high predictive value for COPD. HMGB1 is a potential biomarker for evaluating COPD progression.
Approaching Risk Management in Medical Laboratories
Authors: David Remona Eliza 
Published: May 2022

Abstract
Risk is one of the greatest challenges in a medical laboratory. Risk-based thinking is a concept that always preoccupies medical laboratory technicians. The objectives of this work were to bring forward the specialty standards recommendations for the implementation of risk management principles in medical laboratory, the accreditation requirement of ISO 15189:2012; to demonstrate that the understanding of the fundamental notions of the concept of risk, the effectively apply of the means of identifying, assessing and controlling risks, and the risk monitoring and handling through strategies of acceptance, elimination, transfer and mitigation of risks can ensure the continuous improvement processes. A model to approach to risk management in a medical laboratory establishes the inputs, the outputs, the techniques, and the activities carried out in each of the following sub-processes of the risk management process: risk management process planning, risk identification, risk analysis and evaluation, development of the risk response plan and risk monitoring, control and revision. The concepts of risk and risk management are applied accordingly to standards ISO 31000:2018 and ISO 22367:2020 of International Organization for Standardization (ISO). Risk management ensures that the fundamental requirements for healthy, proactive internal control of the medical laboratory are met.
Experimental and Numerical Study on the Efficiency of the Repair of Composite Structures Cracked and V-Notched By Different Types and Shapes of Composite Material Patch
Authors: Berrahou Mohamed , Amari Kaoula 
Published: May 2022

Abstract
The subject of this article around two studies, including experimental and numerical, aiming to know the efficiency of the repair of a composite plate notched (V-shape) and cracked by composite patches of different (types and shapes) . The experimental study to find out which composite materials and shapes are resistant to fracture and notch, We used the finite element method (ABAQUS) for the numerical study to follow the variation of the damaged area ratio DR, the stress intensity factor SIF and the stress distribution as a function of the crack size for located the most effective shape and type patch in repairing cracks and notch. From the results found we can deduce that the best type of patch used is Boron / epoxy and the full shape is the most efficient and resists structural failure, this is confirmed by the experimental test.
Effect of Load Eccentricity on Stress Condition of Butt Welded Joint with Asymmetrical Reinforcement
Authors: Moltasov Andrii , Tkach Pavlo , Ustynenko Oleksandr , Protasov Roman 
Published: May 2022

Abstract
An analytical method for determination of a stress condition of butt welded thin-gauge plates with asymmetrical reinforcement is developed. The proposed method allows take into account the effect of the load application eccentricity on the tensile stress concentration factor (SCF) in the weld root zone. It is presented that the bending stresses, caused by this eccentricity, result in increasing the total stresses up to 75%. The results of analytical SCF calculations are in good agreement with the results obtained using the finite element method.
Multi Sources Information Fusion Based on Bayesian Network Method to Improve the Fault Prediction of Centrifugal Compressor
Authors: Nessaib Karim , Lakehal Abdelaziz 
Published: May 2022

Abstract
The centrifugal compressor is an important machine in the oil and gas industry, so the fault prediction of these machines is widely discussed in the literature. Several techniques can and should be used in fault prediction of centrifugal compressors: vibration analysis, non-destructive testing techniques, operating parameters, and other techniques. But in particular cases, these tools are inefficient for making a decision regarding the combined fault diagnosis and prediction. This paper presents a contribution to fault prediction in centrifugal compressor utilizing multi-source information fusion by a Bayesian network. The data fusion does not come from the same source, but rather from vibration analysis, oil analysis, and operating parameters. In addition, the accuracy and ability of fault prediction can be improved compared with the use of data obtained from vibration analysis only or oil analysis. The proposed method accuracy is validated on a BCL 406 type centrifugal compressor. Furthermore, the obtained results showed the effectiveness of the multi-source information fusion by Bayesian network approach gives more accuracy to decision-making in fault prediction and the developed method has an effect in predicting the combined faults.
Analysis of the Financial Leverage Effect in the Context of Interest Rates Increase
Authors: Ionescu Luiza , Toma Maria , Founanou Mathurin 
Published: May 2022

Abstract
The main objective of this paper is to demonstrate the importance of a tool, called in the specialized literature, financial leverage effect, in managerial decision-making process, regarding the way to finance the assets and finding an optimal indebtedness. The research context comes as a result of the recently increase in the inflation rate, at global, European and national level. This fact led the national central banks to revise their monetary policies, mainly through the monetary policy increases interest rate. As a consequence, the commercial banks (which borrow money from the Central or National Bank) grant more expensive loans to commercial companies. Theoretical research on the conceptual approach is complemented by the case study method, whose results show that an increase in the interest rate on loans contracted by the companies, can lead to a decrease in the financial leverage effect value, until reaching even negative values.
Increasing the Efficiency of The Romanian Tourism Sector by Improving the Service Management and using Mathematical Modeling
Authors: Sayin Ferhan , Croitoru Gabriel , Robescu Valentina Ofelia , Florea Nicoleta Valentina 
Published: May 2022

Abstract
The topicality and necessity of the topic is motivated by the usefulness and necessity of approaching, from a new perspective, the development of the southeastern region of Romania through some important features in the increasingly challenging era of the prohibitions imposed by COVID 19, some knowledge which tries to answer the increasing complexity of economic and social realities, interactive and innovative approaches, analysis and promotion of the natural and anthropic potential of this tourist area and tourism enterprises, activities accomplished by them and attracting foreign investors, practices made public by managers in the tourism sector. Viewing the statistics on the development and delivery of quality in national and regional tourism, identifying long-term strategies, insufficiently studied, can determine a continuous improvement in the quality of tourism products and services, combined with managerial practices to meet the tourists’ needs, facilitating the growth of the profits. In order to improve the quality of the services in the tourism sector, by training / qualifying the staff, the customer orientation through some tourism promotion and information policy, the conservation and preservation of the sustainable environment, the visualization of managerial practices, methods of investigation, analysis, survey, questionnaire, observation, comparison, being completed more stages: documentation (consultation of representative works in the tourism sector), then the research of some empirical facts (practical reality data), fact which gives the whole approach the character of scientific work. Given the specificity of the data, the Spearman correlation coefficient and the Hi correlation coefficient (x2) were used to analyze the links and correlations between different items and different variables related to the sample, to validate the research hypotheses.
ОСОБЛИВОСТІ ПОЕТИКИ ЛІТЕРАТУРНИХ КАЗОК ДЖ.Р.Р. ТОЛКІНА (НА ОСНОВІ ЗБІРКИ “СКАЗАННЯ З НЕБЕЗПЕЧНОГО КОРОЛІВСТВА”)
Authors: Куцик Андрій 
Published: May 2022

У статті проаналізовано особливості літературної казки на прикладі чарівних історій Дж. Р. Р. Толкіна “Сказання з Небезпечного Королівства”: “Роверандом”, “Фермер Джайлз із Гема”, “Коваль із Великого Вуттона”, “Листок пана Дрібнички” та “Пригоди Тома Бомбадила”; виявлено, що вони пов’язані з міфами, однак читач сприймає їх як самостійний естетичний феномен, казки поєднують чарівних, дивовижних та фантастичних персонажів, запозичених з різних джерел.
Простежено, що замкнений світ казок Толкіна приваблює читача цілісністю, завершеністю та чарівністю, а події відбуваються у так званому антисвіті (Дивокрай, світ картини пана Дрібнички).З’ясовано, що антисвіт характеризується власною замкненістю, з усіма атрибутами казки (здатність розмовляти у тварин, рослин та іграшок, чарівні предмети тощо); часопростір організовано в казках пунктиром – з фіксацією ключових моментів сюжету, хронотоп має властивість у чарівний спосіб стискатися.
Analysis and investigation on the core competitiveness of textile and underwear industry in the mainland and Taiwan of China and Myanmar under the global value chain
Authors: Wu Haichao , Luo Lan , Zeng Yingshan , Wang Rudan , Zhang Yue , Chu Chien Chi 
Published: May 2022

All the way in the "area", "comprehensive economic partnership agreement" (RCEP), Association of Southeast Asian Nations (ASEAN) free trade area, the main economic corridor construction under the background of success, the mainland and Taiwan of China and southeast Asia has established the important relations of cooperation, industries are beginning to consider labor costs, raw materials, using the regional to invest policy and market comparative advantage. This paper starts from the investigation of Topline's core competitiveness in China and Myanmar, and focuses on the analysis of lingerie industry in China and Myanmar, and the analysis of women's underwear industry from the perspective of global value chain (GVC). Through the data analysis of the questionnaire survey, this paper summarizes the problems existing in the current situation of the industry, uses the intermediary analysis to analyze the correlation between the two variables, reveals the role of the core competitiveness of enterprises, and uses the GVC theory to analyze the problems existing in the industry of enterprises and their causes. According to relevant theories, the optimization path of enterprise value chain is put forward.
PERBEDAAN HASIL BELAJAR PESERTA DIDIK MENGGUNAKAN MODEL PEMBELAJARAN DISCOVERY LEARNING DAN MODEL PEMBELAJARAN STUDENT FACILITATOR AND EXPLAINING
Authors: Thelessy Reynaldo Decaprio , Palinussa Anderson Leonardo , Gaspersz Magy 
Published: May 2022

Penelitian ini bertujuan untuk mengetahui ada tidaknya perbedaan hasil belajar peserta didik kelas VII SMP Negeri 1 Leksula yang diajarkan dengan model pembelajaran Discovery Learning dan model pembelajaran Student Facilitator and Explaining pada materi Persamaan dan Pertidaksamaan Linear Satu Variabel. Tipe penelitian yang digunakan adalah penelitian eksperimen (Eksperimental Research) dengan desain penelitian Post Test Only Control Group Design. Populasi dalam penelitian ini adalah seluruh peserta didik kelas VII SMP Negeri 1 Leksula. Sampel dalam penelitian ini adalah 25 peserta didik di kelas VII/2 dan VII/3. Kelas VII/2 sebagai kelas eksperimen 1 dan kelas VII/3 sebagai kelas eksperimen 2. Analisis yang digunakan adalah analisis statistik uji-t dan hasil penelitian menunjukan ada perbedaan hasil belajar peserta didik kelas eksperimen 1 dengan model pembelajaran Discovery Learning dan kelas eksperimen 2 dengan model pembelajaran Student facilitator and Explaining. Hal ini dibuktikan dengan hasil perhitungan yang diperoleh yakni, nilai Sig. (2-tailed) lebih kecil dari nilai α=0,05 yakni 0,000. Berdasarkan hasil penelitian maka dapat disarankan bagi para pendidik untuk mendampingi dan memfasilitasi pelajar dengan metode pembelajaran kooperatif untuk meningkatkan dapat hasil belajar. Pendidik dapat menerapkan metode pembelajaran Discovery Learning dengan menimbulkan rasa ingin tahu serta mengarahkan peserta didik untuk berusaha memahami konsep melalui proses penemuan informasi yang dilakukan oleh peserta didik sendiri
IDENTIFIKASI JENIS DAN KELIMPAHAN MOLUSKA YANG DIMANFAATKAN SEBAGAI BAHAN PANGAN PADA EKOSISTEM HUTAN MANGROVE, MERAUKE
Authors: Merly Sendy Lely , Mote Norce , Basik Bernadetha Basik 
Published: May 2022

Mollusc as one of protein sources beside fish and shrimp in contribute to fulfill whether consumption and nutrition of community in coastal area on Merauke regency. This research conducted at mangrove forest ecosystem in Payum beach start on February-April 2020. Moreover, mollusc shell also functioned as decoration, accessories, and powder to sirih pinang activity namely “kahos”, whilst mollusk meat being cooked. The aims of this research were to identified and analyzed the spesies composition and abundance of consumed mollucs by a local community. The research methods consist of interview and purposive sampling method with 10x10 m plots, also followed by three times repetition in three stations. The result shows there are 9 species of consumed mollucs as a food resource such as Cassidula angulifera, Ellobium aurisjudae, Telescopium telescopium, Terebralia palustris, Terebralia semistriata, Cerithidea anticipata, Nerita lineata, Stramonita gradata and Onchidium daemelii. Overall, the highest composition and relative abundance of mollusc at Station I, II and III belongs to Cerithidea anticipata with total approximately 4.609 ind and relative abundance 46.77%, otherwise Ellobium aurisjudae with total 18 ind and relative abundance 0.18% became the lowest.

ABSTRAK
Moluska sebagai salah satu sumber protein selain ikan dan udang turut menunjang pemenuhan kebutuhan baik konsumsi maupun nutrisi bagi masyarakat pesisir di Kabupaten Merauke. Penelitian ini dilaksanakan pada ekosistem hutan mangrove pantai payum dari bulan Februari-April 2020. Selain memanfaatkan cangkangnya sebagai hiasan, aksesoris, dan kapur untuk aktivitas sirih pinang (kahos), daging moluska juga diolah menjadi makanan. Penelitian ini bertujuan untuk mengidentifikasi dan menganalisis komposisi jenis dan kelimpahan moluska yang dikonsumsi oleh masyarakat lokal. Metode yang digunakan yakni wawancara dan purposive sampling method dengan penggunaan plot 10 x 10 m dengan pengulangan 3 kali pada setiap 3 stasiun pengamatan. Hasilnya terdapat 9 jenis moluska yang dimanfaatkan sebagai sumber makanan yakni Cassidula angulifera, Ellobium aurisjudae, Telescopium telescopium, Terebralia palustris, Terebralia semistriata, Cerithidea anticipata, Nerita lineata, Stramonita gradata, dan Onchidium daemelii. Komposisi jenis dan Kelimpahan relatif tertinggi pada Stasiun I, II maupun III yaitu Cerithidea anticipata yakni total individu mencapai 4.609 individu dengan KR 46.77% sedangkan yang paling sedikit adalah jenis Ellobium aurisjudae dengan total individu sebanyak 18 ind dan KR 0,18%.
Kata Kunci: Kelimpahan, komposisi, moluska, mangrove, Merauke
Utilization of Instagram by Glamping Legok Kondang Ciwidey as a Promotion Media during the Pandemic
Authors: Diniati Anisa , Salma Aqida Nuril , Lestari Martha Tri , Devi Ni Luh Putu Febriyanti Suntari , Tasliman Cassey Adela 
Published: May 2022

This research aims to describe how social media Instagram that tourism industry players, and the tourists use during the pandemic, can be utilized as a promotion tool so that more people will be interested in traveling again, especially in the era of the new normal. This research uses a qualitative approach with descriptive research type and data collection techniques carried out through in-depth interviews with one key informant, non-participant observation, and document study. The results show that in carrying out its promotion, Glamping Ciwidey utilizes some features of social media Instagram and emphasizes certain content to attract the attention of their target audiences. In modifying the audiences’ behavior, they optimize the ability of the influencer that was involved in building brand awareness and the interest of tourists’ attraction and maximizing the features of posting and reposting content from the influencers also visitors through Insta Story and Instagram Feeds. In providing the information such as product knowledge and persuading the audiences to be interested in visiting, they utilize some of Instagram’s features and emphasize the digital content creation, such as activities and the view around there, the implementation of health protocol, infographic, and repost content.
Keywords: Nature Tourism, Promotion Media, Social Media For Tourism Marketing