bluuebunny/crossref_metadata_2025 huggingface dataset:
Ein Prozess mit vielen Dimensionen
Authors: Liebhaber Nina
Published: August 2021

Wo, wann, wie, weshalb und wozu utopisieren Menschen? Der Beitrag spannt den gedanklichen Raum auf, in dem sich die aktuelle Utopietheorie bewegt. Vielfältige Dimensionender Utopietheorie werden als Einstieg in das Utopische skizziert. Utopisieren knüpft an diese als praktische Form der Prozessutopie an.
Aus der Krisengesellschaft zur Zukunft für alle
Authors: Pinnow Anne , Kuhnhenn Kai
Published: August 2021

Wie kommen wir zu einer gerechten, ökologisch nachhaltigen, demokratischeren Gesellschaft? Beim Konzeptwerk Neue Ökonomie arbeiten wir zu Fragen des guten Lebens für alle unter dem Begriff Postwachstum. Wir merken dabei, dass es positivere Erzählungen braucht, um Menschen zu begeistern.
Komplikasi Multi Organ pada Pasien yang Menjalani Operasi Double Valve Replacement
Authors: Karseno Iradewi , Sudjud Reza
Published: August 2021

Latar Belakang: Penggantian lebih dari satu katup jantung digolongkan sebagai operasi risiko tinggi dengan risiko komplikasi yang lebih tinggi dibandingkan dengan operasi penggantian satu katup jantung.Kasus: Seorang wanita usia 35 tahun dengan stenosis katup aorta berat, regurgitasi katup aorta moderat dan stenosis katup mitral berat disertai atrial fibrilasi menjalani operasi double-valve replacement. Komplikasi yang ditemukan di intensive care unit (ICU) berupa perdarahan yang signifikan, fibrilasi atrial, cedera ginjal akut dan perdarahan intrakranial.Pembahasan: Komplikasi yang mungkin ditemukan setelah penggantian dua katup jantung meliputi koagulopati, cedera ginjal akut, aritmia dan gangguan serebrovaskular. Koagulopati dapat menyebabkan perdarahan yang signifikan dan instabilitas hemodinamik sehingga harus diberikan tatalaksana yang tepat. Aritmia dapat disebabkan oleh imbalans elektrolit. Cedera ginjal akut sering ditemukan pascaoperasi jantung terbuka dan sebaiknya dilakukan hemodialisis sesegera mungkin.  Tatalaksana gangguan serebrovaskular dapat bersifat konservatif atau operasi. Keputusan tatalaksana gangguan serebrovaskular harus disesuaikan menurut kondisi klinis pasien.Kesimpulan: Deteksi dini dan tatalaksana yang cepat dan tepat sangatlah penting untuk menghindari morbiditas dan mortalitas pascaoperasi yang signifikan.
Analisis Faktor Risiko terhadap Lama Perawatan Pasien Sepsis yang Meninggal di Ruang Perawatan Intensif RSUD Dr. Soetomo Surabaya
Authors: Hatman Fajra Arif , Semedi Bambang Pujo , Budiono Budiono
Published: August 2021

Latar Belakang: Sepsis disebabkan oleh ketidakseimbangan respons tubuh terhadap infeksi dan dapat mengakibatkan komplikasi yang berbahaya. Komplikasi yang ditimbulkan bervariasi, salah satu yang paling sering adalah disfungsi organ yang dapat dinilai melalui skor sequential organ failure assessment (SOFA). Sepsis masih menjadi masalah kesehatan karena sulitnya pengobatan dan lama perawatan yang lama sehingga menyebabkan mortalitas yang tinggi. Sepsis memiliki berbagai penyebab di antaranya pneumonia yang diketahui menjadi salah satu penyebab infeksi terbanyak pada sepsis. Selain itu, mikroorganisme juga menjadi salah satu penyebab infeksi terbanyak di ruang perawatan intensif. Pemeriksaan laboratorium memiliki hasil yang buruk pada banyak pasien sepsis seperti anemia dan leukositosis.Tujuan: Tujuan penelitian ini untuk menganalisis faktor risiko meliputi riwayat penyakit, riwayat konsumsi obat, diagnosis masuk, dan jumlah alat medis invasif terhadap lama perawatan dan mengetahui karakteristik pasien sepsis yang meninggal.Metode: Penelitian ini merupakan penelitian observasional analitik dengan menggunakan data rekam medis 42 pasien sepsis yang meninggal di ruang perawatan intensif RSUD Dr. Soetomo Surabaya. Data dideskripsikan dan dianalisis menggunakan software SPSS 26.Hasil: Terdapat 18 (42,86%) laki-laki dan 24 (57,14%) perempuan dengan rata-rata usia 55,98 + 15,411. Didapatkan median skor SOFA 7,5 (3–15) dengan sistem respirasi menjadi tempat infeksi terbanyak (50%). Pemeriksaan laboratorium menunjukkan banyak pasien sepsis mengalami anemia (66,67%) dan leukositosis (59,52%). Acinetobacter baumannii (26,08%) sebagai mikroorganisme yang paling banyak ditemukan. Hasil penelitian ditemukan hanya diagnosis masuk yang memiliki hubungan dengan lama perawatan (P = 0,05). Di sisi lain tidak ditemukan faktor risiko yang berpengaruh terhadap lama perawatan >5 hari (P > 0,05).Kesimpulan: Diagnosis masuk memperpanjang lama perawatan.  Tidak ada faktor risiko yang berpengaruh terhadap durasi perawatan >5 hari. Karakteristik pasien secara umum memiliki kondisi medis yang buruk.
Analysis On Village Readiness In The Acceleration Of Open Defecation Free Achievement Status Based On Stimulus, Organism, And Response Approach
Authors: Rosanna Siti Farihah , Ma'ruf Khabib Fadlilatul , Aditya Yogi , Nurika Globila , Wikurendra Edza Aria
Published: August 2021

Introduction: Open Defecation Free (ODF) is a condition in the community that has carried out total sanitation and does no more Open Defecation (OD). Dukuh Village was chosen as the research location because it was a village with the highest OD in Ngadiluwih, Kediri. This high rate of OD is caused by a lack of public awareness about the importance of sanitation. This research was conducted to analyze the village readiness to accelerate ODF status in Dukuh Village.Methods: This study was done in a qualitative method with a single holistic case study design using Stimulus-Organism-Response theory. The key informants of this study were five persons:1) the Head of Dukuh Village, 2) the environmental health officer of Wonorejo Community Health Center, 3) Dukuh Village community leader and 4) the community representatives who still defecated, and 5) no more defecated in an open area after triggering activities. They were selected purposively. Data were collected through in-depth interviews, Focus Group Discussion, and documents review. Data analysis was done through the Spradley model, scoring and categorizing village readiness using the scales of Aydin and Tasci.Results: Five main problems were the lack of funds for the ODF program, poor socialization, low Clean and Healthy Behavior, lack of roles from community leaders, and limited land for latrine construction. Based on the analysis of village readiness in achieving the ODF program using the Aydin & Tasci scale, the obtained score was 2.1. This score indicated that Dukuh Village was not ready yet and a lot of system improvements[h1]  were needed.Conclusion: Dukuh Village was not ready yet for the ODF program and need a lot of system improvements. It was recommended to make village policies, create working groups, and maximizing socialization.
Microplastic Pollution in Waters and its Impact on Health and Environment in Indonesia: A Review
Authors: Basri K Sarinah , K Basri , Syaputra Eko Maulana , Handayani Sri
Published: August 2021

Introduction: Microplastics have become a pollution problem that has received worldwide attention. Microplastics in the water impact the environment and health, especially in Indonesia, which is the second-largest plastic waste contributor in the world. This literature study aims to determine the distribution of microplastics pollution in waters and its impact on health and the environment in Indonesia.Methods: The literature search on papers from 2010-2021 through Google Scholar, Pubmed, ScienceDirect, and ProQuest, with the keywords of ‘Microplastics’, ‘Indonesia’, ‘aquatic’, ‘environment’   found 477 articles.  Then, after the exclusion of duplicate articles, and other inclusion criteria, the final review was done on 42 articles. PRISMA guidelines were used for reviewing the procedure.Results: Most microplastic research was conducted in Java Island, which is dominated by rivers and beaches. Based on the source, microplastics came from domestic waste, tourism, and fishing activities. The most common forms found were black and blue fibers from fishing lines, nets, and clothing fibers of various sizes. The type of polymer identified is polyethylene plastic. Microplastics impacted tourist destinations, marine ecosystems through the food chain, and also humans who consume seafood.Conclusion: Microplastics are found in the Indonesian marine environment. Humans can consume seafood contaminated with microplastics, which will have an impact on health. Therefore, a health risk assessment should be done to provide information for taking environmental management efforts.
A case of common variable immune deficiency with lung disease–not just bronchiectasis
Authors: Polakow Farkash Sharon , Ehrlich Shai , Steuer Guy , Yacobovich Joanne , Diamant Nir , Marcus Nufar
Published: August 2021

Introduction: Common Variable Immune Deficiency (CVID) is the most prevalent form of severe antibody deficiency in children and adults. Most patients suffer recurrent, mainly sinopulmonary, infections. Despite adequate IVIG replacement therapy, chronic lung disease continues to be a main cause of morbidity and mortality. The term granulomatous-lymphocytic interstitial lung disease (GLILD) is frequently used to describe interstitial lung disease associated with immune dysregulation in primary antibody deficiency, such as CVID.

Aim: To describe the case of a 10-year-old male with CVID who developed GLILD and his response to treatment with Rituximab.

Discussion: Our patient is a young male with CVID and no genetic diagnosis, whose lung functions and general condition continued to deteriorate despite adequate intravenous immunoglobulin replacement therapy and mycophenolate mofetil treatment. After the diagnosis of GLILD, we initiated treatment with a 4-dose weekly course of Rituximab with prompt resolution of his interstitial disease. Although GLILD is a well described condition that accompanies CVID as a manifestation of immune dysregulation, it is still under recognized, especially in the pediatric population. Among experts, there is little uniformity when it comes to diagnostic and treatment approaches. Recent studies showed improved outcomes when using combination therapy with Rituximab, such as in our patient.

Statement of Novelty: We shed light on GLILD, an important condition that accompanies CVID, and demonstrate an excellent response to the steroid sparing agent Rituximab. This is a crucial aspect when considering therapeutic choices for the pediatric population.
Reassessing Passion and Perseverance as Dimensions of Individual Entrepreneurial Orientation: A Conceptual and Empirical Investigation into Theory and Measurement
Authors: Howard Matt C. , Floyd Andrea
Published: August 2021

Santos, G., C. S. Marques, and J. J. Ferreira. 2020. “Passion and Perseverance as Two New Dimensions of an Individual Entrepreneurial Orientation Scale.” Journal of Business Research 112: 190–9 proposed a five-dimensional conceptualization of individual entrepreneurial orientation (IEO), but more evidence is needed before authors can reliably apply their conceptualization and operationalization. We provide a theoretical critique of their conceptualization and continue their scale development process. Four of five dimensions converged with other scales of the same constructs, but their passion dimension did not. The factor structure and predictive validity evidence also suggested that passion should not be included within the scope of IEO, and we assert that Santos et al.’s conceptualization of IEO is better represented with a hierarchical structure. Proactiveness and perseverance as well as risk-taking and innovativeness load onto two separate second-order factors, and these two second-order factors load onto the broader factor of IEO. We suggest that the construct measured by Santos et al.’s passion dimension may instead be a mediator between IEO and entrepreneurial outcomes, and we provide further insights into the measurement of IEO.
Convergence analysis of online learning algorithm with two-stage step size
Authors: Nie Weilin , Wang Cheng
Published: August 2021

Online learning is a classical algorithm for optimization problems. Due to its low computational cost, it has been widely used in many aspects of machine learning and statistical learning. Its convergence performance depends heavily on the step size. In this paper, a two-stage step size is proposed for the unregularized online learning algorithm, based on reproducing Kernels. Theoretically, we prove that, such an algorithm can achieve a nearly min–max convergence rate, up to some logarithmic term, without any capacity condition.
3 W average-power high-order mode pulse in dissipative soliton resonance mode-locked fiber laser
Authors: Wang Longtao , Xu Jiangtao , Lu Jiafeng , Teng Linping , Luo Zhengqian , Pang Fufei , Zeng Xianglong
Published: August 2021

Recently high-order modes (HOMs) lasers have been extensively investigated due to their potential applications in mode-division multiplexing. In this paper, we present two schemes of generating HOMs from the mode-locked fiber lasers (MLFLs) in the dissipative soliton resonance (DSR) regime. Watt-level HOM outputs are implemented through intra-cavity mode conversion. 3 W average-power HOMs with an efficiency slope of 25% can be obtained based on an MLFL in the DSR regime, which is achieved by incorporating a long-period fiber grating (LPFG) and a dual-resonant acoustically induced fiber grating (AIFG), respectively. Their different spectrum responses enable flexible mode conversion in the MLFLs. Both fiber mode converters are exploited to show their robust capability of efficient mode manipulation. The MLFL with an LPFG inserted in the cavity can achieve wide-bandwidth intra-cavity optical vortex beams (OVBs) near the dispersion turning around point because of the pulses of the fundamental mode and high-order vortex eigenmodes oscillating in the cavity with the same group velocity to form spatiotemporal mode locking. The MLFL based on a dual-resonant AIFG can perform the function of fast switching (∼0.3 ms) in LP01, LP11a, and LP11bmodes with a high modal purity of 96%. These different modes with high-energy pulses can be flexibly switched with programmable radio frequency modulation. Furthermore, a quarter-wave plate and a polarizer are employed at the output of fiber laser to realize the controllability of the mode field, which is possible to generate a controllable mode field of OVBs based on the first-order Poincaré sphere. This control method can be integrated with the MLFLs to extend the flexibility of high-power HOMs generation.
Crystal structure of (4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo[8.8.8]hexacosane-κ
8
N
2, O
6) potassium cyclopentadienide, [K([2.2.2]crypt)]Cp, C23H41KN2O6
Authors: Fischer Christina , Klein Wilhelm , Fässler Thomas F.
Published: August 2021

C23H41KN2O6, monoclinic, P21/c (no. 14), a = 10.9817(6) Å, b = 23.8330(15) Å, c = 9.7379(7) Å, β = 94.705(5)°, V = 2540.1(3) Å3, Z = 4, R

gt
(F) = 0.0327, wR
ref(F
2) = 0.0682, T = 120 K.
Sexuality and Gender Diversity in the Liberal Catholic Discourse in Poland in the Pastoral Perspective
Authors: Laddach Agnieszka
Published: August 2021

One of the most important questions in the Roman Catholic Church is the question of sexual and gender diversity. Therefore, the article presents the results of qualitative and quantitative content analysis of the Catholic sociocultural periodical Więź (Bond) from 2007 to 2020, which is the leading forum for liberal Catholic debates in Poland. The goal was to analyze the period’s narration toward current Church’s instructions on sexuality and gender diversity. Five dominant postulates were identified in Więź: (1) a discussion about people with the need to revise their or the Church’s narration on and experience of sex and gender; (2) a reevaluation of the significance and consequence of sexual revolution in Poland; (3) an organization of the understanding of body, sex, sexuality, and gender; (4) a promotion of the idea of encounter; and (5) a settlement of cases of sexual abuse in the Church. The article concludes that the presence of social dialogue on sexuality and gender diversity in the current pastoral approach of the Church in Poland requires a suspension of moral judgment and an openness from Church with a strong traditional, and rigid viewpoint to better understand the difficult spiritual and social situation of people who live contrary to the moral teachings of the Church or whose views go against these teachings.
Japanese orthographic complexity and speech duration in a reading task
Authors: Grippando Shannon
Published: August 2021

The number of letters in a word’s orthographic form can affect speech duration. Previous research in this area has been limited to studies of languages with alphabets. The current study expands upon this previous research by investigating effects on speech duration from units of orthographic complexity potentially analogous to letter length in Japanese, a language with a logography. In a modified version of a reading task used in one of the prior studies, native Japanese-speaking participants were audio-recorded reading pairs of homophonous words that varied by: 1) number of pen strokes in a single character; or 2) number of whole characters in their orthographic forms. Two-character words were produced significantly longer than one-character words. No significant effect was found from pen strokes on speech duration. These results are presented as evidence that the orthographic duration effect observed in previous studies is not limited to languages with alphabetic writing systems.
Survey Methodology for a Collection of Technical Drawings
Authors: Natsikou Aggeliki , Tsantiri Konstantina , Zervos Spiros
Published: August 2021

The YAMP (Projects and Specifications Archive Department) historical collection is part of the collections of technical drawings owned by the Historical Archive of Athens Water Supply and Sewerage Company (EYDAP S.A.). The survey of the collection, which is presented here, was commissioned by the Company to the Department of Archival, Library & Information Studies, University of West Attica, Greece. The objectives of the survey were the documentation of the condition of the collection, the determination of the technical specifications, and the cost estimation for its conservation. Several aspects of the survey methodology are presented, mainly the documentation step, which was planned to collect all the essential data, and the process of the cost estimation. Automation and parameterization of the calculations necessary for the documentation and the cost estimation are discussed in detail. The results of the survey and the recommended best practices for the optimization of the management of the collection are briefly outlined.
What does Google say about credit developments in Brazil?
Authors: Neto Alberto Ronchi , Candido Osvaldo
Published: August 2021

In this paper multivariate State Space (SS) models are used to evaluate and forecast household loans in Brazil, taking into account two Google search terms in order to identify credit demand: financiamento (type of loan used to finance goods) and empréstimo (a more general type of loan). Our framework is coupled with nonlinear features, such as Markov-switching and threshold point. We explore these nonlinearities to build identification strategies to disentangle the supply and demand forces which drive the credit market to equilibrium over time. We also show that the underlying nonlinearities significantly improves the performance of SS models on forecasting the household loans in Brazil, particularly in short-term horizons.
Low-cost electromyograph combined with markerless pose detection
Authors: Scheible Florian , Lamprecht Raphael , Rives Marc , Sutor Alexander
Published: August 2021

This papers presents a low-cost electromyograph combined with marker-less pose detection using computer vision. The developed and build three channel electromyograph is tested by measuring the muscle activity of one leg, while the subject is performing squats. Simultaneously, a camera records the exercise and subsequently the image data is evaluated by OpenPose. We could show that this simple setup enables the user to evaluate the muscle activity of three independent muscles as function of the knee angle. These results are in good agreement to the expected muscle activity. The sample-rate of the EMG device is 2 kHz. The overall cost of the developed device is under 100 €. To our knowledge, this is the first work combining these two methods for dynamic exercises. The method is well customizable for other sports due to the battery powered device and its handy size.
Optische Messung zahnindividueller Formparameter am Beispiel von Geradverzahnungen
Authors: Pillarz Marc , von Freyberg Axel , Stöbener Dirk , Fischer Andreas
Published: August 2021

Der Bedarf an skalierbaren Messsystemen für die umfassende Qualitätsprüfung zahnindividueller Formparameter metergroßer Zahnräder mit einstelliger Unsicherheit im Mikrometerbereich wächst. Taktile Standardverzahnungsmesssysteme sind präzise, aber aufgrund der limitierten Geschwindigkeit und des begrenzten Messvolumens für eine umfassende Qualitätsprüfung aller Zähne nur bedingt geeignet. Aus diesem Grund wird ein schnellerer optischer Multi-Distanz-Messansatz mit modellbasierter Auswertung zur Verzahnungsmessung untersucht. Über bisherige Arbeiten hinausgehend, in denen zunächst der mittlere Grundkreisradius als grundlegender Formparameter von allen Zähnen bestimmt wurde, wird hier die Eignung des Messansatzes zur Erfassung zahnindividueller Formparameter untersucht. Messungen an kleinen Verzahnungen zeigen, dass der zahnindividuelle Grundkreisradius im Mittel mit einer Unsicherheit < 10 μm (𝑘 = 2) bestimmt werden kann, was eine vielversprechende Grundlage für die zukünftige Anwendung des Multi-Distanz-Messansatzes bei Großverzahnungen bietet.
Lamb wave based approach to the determination of elastic and viscoelastic material parameters
Authors: Johannesmann Sarah , Claes Leander , Henning Bernd
Published: August 2021

In this paper a measurement procedure is presented to identify both elastic and viscoelastic material parameters of plate-like samples using broadband ultrasonic waves. These Lamb waves are excited via the thermoelastic effect using laser radiation and detected by a piezoelectric transducer. The resulting measurement data is transformed to yield information about multiple propagating Lamb waves as well as their attenuation. These results are compared to simulation results in an inverse procedure to identify the parameters of an elastic and a viscoelastic material model.
The effects of various strength training intensities on blood cardiovascular risk markers in healthy men
Authors: Akyüz Murat , Doğru Yeliz , Rudarli Nalcakan Gulbin , Ulman Cevval , Taş Murat , Varol Rana
Published: August 2021

Objectives

Regular physical exercise, especially aerobic exercise, is known to have a protective effect on cardiovascular health. The aim of this research is to look at the impact of two separate resistance training programs on blood biomarkers that are associated with the early detection of cardiac risk.

Methods

Forty-five male participants (mean 41 years) were randomly divided into three groups: The low-intensity resistance exercise group (LIEG), the moderate-intensity resistance exercise group (MIEG), and the control group (CG). The programs were implemented three times a week and in two sets. MIEG consisted of 8–10 repeats at 70–80% density of one repetition maximum load (1RM), while LIEG consisted of 15–17 repeats at 50–60% density of 1RM. CG did not participate in any exercise program. Two-factor mixed-design ANOVA assessed the data.

Results

Before, fourth week, and after the exercise program in repeated measurements, there was a significant decrease in body mass (−1.7%), body mass index (−1.7%), apelin (−44%), and pentraxin 3 (−39%) levels in MIEG (p < 0.05). Additionally, our study noted a decrease in pentraxin 3 (−25%, p < 0.05) and interleukin 6 (−21%) levels, while there was an increase in creatine kinase (18%), and lactate dehydrogenase (7.4%) levels in LIEG. Strength levels improved significantly in exercise groups.

Conclusions

Eight weeks of moderate-resistance training can potentially reduce the cardiovascular risk in healthy men.
Is it possible to determine antibiotic resistance of E. coli by analyzing laboratory data with machine learning?
Authors: Ayyıldız Hakan , Arslan Tuncer Seda
Published: August 2021

Objectives

Microbial antibiotic resistance remains a serious public health problem worldwide. Conventional culture-based techniques are time-taking procedures; therefore, there is need for new approaches for detecting bacterial resistance. The aim of this study was to assess antibiotic resistance of Escherichia coli by analyzing biochemical parameters with machine learning systems without using antibiogram.

Material and methods

In this article, machine learning systems such as K-Nearest Neighbors, Artificial Neural Networks (ANN), Support Vector Machine and Decision Tree Learning were used to investigate whether E. coli is sensitive or resistant to antibiotics. The study was conducted based on the clinical records of 103 patients who were previously diagnosed with E. coli infection, including CBC and complete UA results, and CRP values.

Results

The accuracy rates of antibiotic resistance/susceptibility detected by ANN were as follows: Amikacin (96.0%), Ampicillin (77%), Ceftazidime (62%), Cefixime (63%), Cefotaxime (68%), Colistin (95%), Ciprofloxacin (76%), Cefepime (70%), Ertapenem (96%), Nitrofurantoin (90%), Phosphomycin (98%), Gentamicin (84%), Levofloxacin (98%), Piperacillin-Tazobactam (92%), and Trimethoprim-Sulfadiazine (79%).

Conclusions

The study determined the antibiotic resistance of E. coli with less time and cost compared to conventional culture-based methods machine learning based model contributes positively to artificial intelligence (AI) supported decision-making processes in laboratory medicine.
Model for Phishing Websites Classification Using Artificial Neural Network
Authors:   Faculty of Computing, Universiti Malaysia Pahang, 26600 Pekan, Pahang, Malaysia, Hassan Noor Hazirah , Fakharudin Abdul Sahli ,   Faculty of Computing, Universiti Malaysia Pahang, 26600 Pekan, Pahang, Malaysia
Published: August 2021

Internet users might be exposed to various forms of threats that can create economic harm, identity fraud, and lack of faith in e-commerce and online banking by consumers as the internet has become a necessary part of everyday activities. Phishing can be regarded as a type of web extortions described as the skill of imitating an honest company's website aimed at obtaining private information for example usernames, passwords, and bank information. The accuracy of classification is very significant in order to produce high accuracy results and least error rate in classification of phishing websites. The objective of this research is to model a suitable neural network classifier and then use the model to class the phishing website data set and evaluate the performance of the classifier. This research will use a phishing website data set which was retrieved from UCI repository and will be experimented using Encog Workbench tool. The main expected outcome from this study is the preliminary ANN classifier which classifies the target class of the phishing websites data set accurately, either phishy, suspicious or legitimate ones. The results indicate that ANN (9-5-1) model outperforms other models by achieving the highest accuracy and the least MSE value which is 0.04745.
On the primitive irreducible representations of finitely generated nilpotent groups
Authors: Tushev A.V.
Published: August 2021

We develop some tecniques whish allow us to apply the methods of commutative algebra for studing the representations of nilpotent groups. Using these methods, in particular, we show that any irreducible representation of a finitely generated nilpotent group G over a finitely generated field of characteristic zero is induced from a primitive representation of some subgroup of G.
Електрофізичні властивості A3 IILaNb3O12 (AII = Sr, Ba) з шаруватою перовськітоподібною структурою
Authors: Тітов Ю.О. , Слободяник М.С. , Кузьмін Р.М. , Чумак В.В.
Published: August 2021

Термообробкою шихти спільно осаджених гідроксикарбонатів синтезовані високостехіометричні полікристалічні зразки катіондефіцитних ніобатів A3IILaNb3O12(AII = Sr, Ba) з тришаровою перовськітоподібною структурою. Методом імпедансної спектроскопії досліджені електрофізичні властивості виготовлених з них керамічних зразків. Для моделювання спектра імпедансу застосовано метод еквівалентних схем, представлених радіотехнічними елементами, який дає змогу виділити у чистому вигляді властивості мікрокристалічних зерен кераміки, тобто власне досліджуваної речовини, без впливу міжкристалічних та електродних ефектів. Встановлені та проаналізовані залежності комплексного імпедансу Z(v) цих сполук від частоти (0,1—106 Гц) зондуючого синусоїдального електричного сигналу та температури (300—700 К). Досліджені температурна залежність електропровідності на постійному струмі, температурні та частотні залежності дійсної компоненти діелектричної проникності ε'‎, а також визначена енергія активації електропровідності зерен кераміки A3IILaNb3O12(AII = Sr, Ba). Встановлена можливість використання синтезованих матеріалів для виготовлення високочутливих і стійких до агресивних умов експлуатації тер місторів із суто нелінійною характеристикою та широким інтервалом робочої температури.
Застосування 1-(4-Cl-бензил)-3-Cl-4-(CF3-феніламіно)- 1Н-пірол-2,5-діону як панспецифічного інгібітора протеїнкіназ для гальмування гематологічних ускладнень на тлі експериментального хронічного холангіту у щурів
Authors: Бєлінська І.В. , Кузнєцова Г.М. , Дзюбенко Н.В. , Савич Ю.В. , Мілохов Д.С. , Хиля О.В. , Рибальченко Т.В.
Published: August 2021

Досліджено вплив панспецифічного інгібітора протеїнкіназ похідного піролу (1-(4-Cl-бензил)-3-Cl-4-(CF3- феніламіно)-1Н-пірол-2,5-діон (MІ-1)), синтезованого в Київському національному університеті ім. Тараса Шевченка, на гематологічні прояви експериментального хронічного холангіту, індукованого α-нафтилізотіоціанатом. Встановлено, що МІ-1 зменшує рівень запального процесу, що підтверджується нормалізацією загальної кількості лейкоцитів у крові внаслідок зменшення кількості еозинофільних і нейтрофільних гранулоцитів та лімфоцитів, які залучені до розвитку експериментального хронічного холангіту. МІ-1 відновлює кількість еритроцитів у крові шляхом активації еритропоезу, що підтверджується зростанням кількості ретикулоцитів у крові. Введення МІ-1 сприяє нормалізації кількості тромбоцитів у крові, найвірогідніше, через пригнічення утворення тромбоцитів у кістковому мозку, активованого розвитком запального процесу в печінці. Під впливом МІ-1 зменшується рівень гематологічних ускладнень, що зумовлені експериментальним хронічним холангітом. Зважаючи на це і доведену низьку загальну гематоксичність та гепатопротективну дію МІ-1 є перспективним для подальших досліджень як сполука з протизапальною активністю.
Side streams from the vegetable oil production as feedstock for surfactants and treir derivative technical systems
Authors:   V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry of the National Academy of Sciences of Ukraine, Bodachivska L.Yu.
Published: August 2021

This work conducts a technical analysis of the current production and consumption of vegetable oils and some of the oily byproducts to determine the potential feedstock for the synthesis of non-food-competitive surfactants and surfactant-based systems. It defines the concentrated phosphatides (phosphatidic sludge) as no-/low- value streams, appropriately suited for chemical valorisation. The study further creates biobased surfactants by amidation of phosphatidic sludge derived from refinery of sunflower and rapeseed oils with monoethanolamine, N-(2-hydroxyethyl)ethylenediamine, or N,N’-bis(2-hydroxyethyl)ethylenediamine, under the action of calcium hydroxide as catalyst in excellent yields (95–98 %). Besides waste remediation, the use of phosphatides enabled to create the mixed surfactant compositions, comprising fatty acid alkanolamides and calcium glycerolphosphatides with improved solubility in organic non-polar solvents. With new surfactants, there have been created reversed emulsion systems, which can be potentially applied to the development and exploitation of gas and oil deposits are recommended for drilling wells, the disclosure of productive strata; perforation of wells and development of productive layers; blockage of gas, gas condensate and oil wells; elimination of manifestations and flow of gas in wells; limitation and elimination of waterways; cleaning of the hollow zone of wells and intensification of the inflow of hydrocarbon raw materials, which have been tested in laboratory and experimental industrial conditions, and a significant part of them have been introduced or tested on gas condensate fields. Creation of coordinated, effective and economical actions that should be formed in the state energy policy of Ukraine would facilitate the development of oil and gas companies, namely: increase of own oil and gas production; maximizing the potential of energy saving; diversification of external sources of supply; approximation of the parameters of the oil and gas industry to the norms and standards of the European Union.
Influence of addition of exomodified carbon nanospheres on the structuration in ethanol motor fuels
Authors:   V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry of the National Academy of Sciences of Ukraine, Polunkin E.V. , Pyliavskyi V.S. ,   V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, Gaidai O.O. ,   V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry of the NAS of Ukraine, Melnykova S.L. ,   V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry of the NAS of Ukraine, Spaska O. ,   National Aviation University, Matveeva I.V. ,   National Aviation University
Published: August 2021

The work is devoted to elucidation of a general mechanism of action of exomodified carbon nanospheres (CNOs – Brn nanoonions) on different physicochemical and chemmotological properties of ethanol motor fuels. The formation of supramolecular solvate groups in organic media is explained by the participation of different forces of intermolecular interaction, the main of which are polarization and orientation, as well as donor-acceptor forces of interaction of nanospheres with the environment. The concept of creation in an organic medium of solvation formations - domains, the size of which, determined by the method of photon correlation laser spectroscopy, varies from 21 to 1000 nm, depending on the chemical nature of the solvent - is proposed and substantiated. For ethanol, the size of such formations was ~ 400 nm, which significantly exceeds the size of individual particles of the additive. It is established that to improve the operational characteristics of ethanol fuel it is enough to introduce low concentrations (10-3 - 10-2 %, wt.) of synthesized brominated nanoparticles. It is shown that the change of the microheterogeneous structure of fuels affects the change of its physicochemical and operational characteristics: the dielectric constant and hydrophobicity of the medium decrease, the saturated vapor pressure increases, which improves the starting properties of the fuel; hydrophobization of the environment helps to reduce the corrosive properties of ethanol fuel per unit, as a result of which additional introduction of a corrosion inhibitor is not required; the bearing capacity of the fuel in the presence of brominated nanoparticles increases by 1.5 times compared to the base fuel with a corresponding decrease in damage to the metal surface of the friction pairs. It is the rearrangement of the secondary supramolecular structure of fuels in the presence of brominated carbon nanospheres that explains the multifunctionality of their influence on the physicochemical and chemmotological properties of ethanol motor fuels.
Investigation of organic materials nature on petrol removal from water surfacee
Authors:   Institute for Sorption and Problems of Endoecology NAS of Ukraine, Bacherikova I.V. , Grinenko S.B. ,   Institute for Sorption and Problems of Endoecology NAS of Ukraine, Kuznetsova L.S. ,   Institute for Sorption and Problems of Endoecology NAS of Ukraine, Zazhigalov V.O. ,   Institute for Sorption and Problems of Endoecology NAS of Ukraine, Bacherikov O.V. ,   SIC “Petroleum-Gas Centre”
Published: August 2021

The properties of some organic materials in the removal of oil from water area were studied. It was shown that available materials as technical wool and sintepon can be used as effective sorbents for petroleum removal from water area. The sample mechanical wringing of these sorbents permits to return the part of adsorbed oil for its next use. The dependence of sorption properties (the adsorbed petroleum mass, specific oil adsorption, return of the oil and selectivity of petroleum removal) and petroleum removal from the number of absorption-release cycles was established. It was established that quantity of adsorbed oil decreases in other next step of removal but mass of oil returned increases in the process of mechanical wringing. The regeneration of these adsorbents by flushing in gasoline permits to obtained the initial properties in oil removal from water area. The sorption elements in the form of bags from linen with these materials were prepared. The dependence of the amount of oil removed by these sorption elements from the time of oil clearing of the water area process was determined and the optimal parameters of petroleum removal were established. It was shown that sorption elements on the base of these materials have adsorption capacity equal to 14-16 g of petroleum/g sorbent at selectivity of petroleum removal more than 70 % and oil recovery degree more than 80 % and the possibility their reusable use on oil spill response. The obtained positive results of oil removal from water area permit to propose in extreme cases of oil spills the available industrial products as jerseys, blankest, jackets etc. use successfully for petroleum spill response. The hydrophobization of these elements permits to improve their properties in oil removal from water area. As results of sorption elements modification the increase of adsorbed oil mass and specific petroleum removal at simultaneous increase of returned oil quantity for its next use and oil removal selectivity were established. It was established that synthesized sorption elements not inferior in properties known industrial sorbents for oil removal from water area.
Vapor-phase oxidation of propylene glycol-methanol mixture to methyl lactate on CeO2/Al2O3 catalyst
Authors:   Institute for Sorption and Problems of Endoecology of NAS of Ukraine, Sharanda M.E. , Mylin A.M. ,   Institute for Sorption and Problems of Endoecology NAS of Ukraine, Zinchenko O.Yu. ,   Manufacturing Group Techinservice Limited, Brei V.V.
Published: August 2021

The vapor-phase oxidation of mixtures of propylene glycol with methanol and ethanol to methyl and ethyl lactate, respectively, on supported CeO2/Al2O3 catalyst with 10 wt.% CeO2 content was studied. The steel flow reactor with a fixed catalyst bed (4 cm3) was used. 20 wt.% solution of propylene glycol in alcohol was fed to the reactor inlet by Waters 950 pump at LHSV= 0.5-0.8 h-1. Reaction temperature and pressure were varied in the interval of 190-250 0C and 1.3-1.8 bars respectively. Compressed air was given to the reactor inlet at the molar ratio of propylene glycol/O2 = 1. The reaction products were analyzed using gas chromatography (Agilent 7820A) and 3C NMR (Bruker Avance 400) methods. Studied oxidation of propylene glycol in the presence of methanol describes by total reaction CH3CHOHCH2OH +O2 + СН3OH = CH3CHOHCOOСН3 +2H2O At first, hydroxyacetone is formed that is further oxidized to pyruvic aldehyde, which attaches alcohol to form hemiacetal. Then, hemiacetal of methyl glyoxal rearranges into methyl lactate by Cannizzaro. At 220 0C and load on a catalyst of < 2 mmol PG/gcat/h, the selectivity towards methyl lactate reaches 70 wt.% at 100 % propylene glycol conversion. The main by-products are formed as the result of acetaldehyde transformation. Acetaldehyde could be formed at hydroxyacetone aldol decondensation. In the presence of ethanol, the formation of a significant amount of acetaldehyde and its aldol condensation products as well as the formation of diethoxyethane are observed. Therefore, ethyl lactate selectivity at 100 % propylene glycol conversion does not exceed 45 %. Supported CeO2/SiO2 contact was tested in this oxidation reaction also. However, CeO2/SiO2 provides the low, up to 25%, selectivity towards methyl lactate at full propylene glycol conversion. It was shown that at the same conditions methyl lactate is formed with higher selectivity then ethyl lactate. The high methyl lactate yield up to 70 wt.% could be obtained via vapor-phase oxidation of 20% mixture of propylene glycol with methanol by air oxygen on supported CeO2/Al2O3 catalyst at 210 - 220°С and at time contact of 3-4 seconds.
Species diversity of bats (Chiroptera) in the Ukrainian Azov Region and features of their residence by seasons
Authors:   Dmitry Motorny Tavria State Agrotechnological University (Меlіtopol, Ukraine), Volokh Anatoliy , Gorlov Petro ,   Bohdan Khmelnytsky Melitopol State Pedagogical University (Меlіtopol, Ukraine), Siokhin Valeriy ,   Bohdan Khmelnytsky Melitopol State Pedagogical University (Меlіtopol, Ukraine), Polishchuk Igor ,   E. F. Falz-Fein Askania-Nova Biosphere Reserve, NAAS (Askania-Nova, Ukraine)
Published: August 2021

The article presents the results of regional surveys of bats in 2010–2020 in places planned for the construction of wind farms. With the use of modern ultrasonic detectors, computer programs and an electronic library of voices, 15 species were found in the Ukrainian Azov Region. Their highest diversity (11–13 species) was revealed in places of intensive migration. First of all, these are the sites Armyansk, Chaplynka, and Askania-Nova, which are located between the Dnieper valley and the Crimean Peninsula. Probably, in this area, bats migrating from the northern and north-eastern regions cross the land and join those moving along the Azov coast. The movement of a significant number of animals is noticeable in the west of the Molochna River. A relatively large variety of bats occurs near the sites Botiyevo, Orlivka, and Primorsk, located directly on the northern shore of the Sea of Azov, along which the migratory movements of bats are particularly strong. During winter, with limited research in this period, 8 species were found, whereas 13 species during spring and autumn migrations and 11 species in summer. The almost complete transformation of the steppe into agrocoenoses bordered by forest belts and irrigation canals undoubtedly affected bats in addition to global warming. In recent years, in all places of the Ukrainian Azov Region, there has been a decline in the number of the common pipistrelle (Pipistrellus pipistrellus) and serotine bats (Eptesicus serotinus), and an increase in the abundance of the noctule bat (Nyctalus noctula), Kuhl's pipistrelle (Pipistrellus kuhlii), Nathusius' pipistrelle (Pipistrellus nathusii), and parti-coloured bat (Vespertilio murinus). In all seasons, the least common species were the brown long-eared bat (Plecotus auritus), Daubenton's bat (Myotis daubentonii), greater noctule (Nyctalus lasiopterus), lesser noctule (Nyctalus leisleri), Savi's pipistrelle (Hypsugo savii), and western barbastelle (Barbastella barbastellus).
Acoustic monitoring of bats: experience of organization in protected areas of Podillia
Authors:   Podilski Tovtry National Nature Park (Kamianets-Podilsky, Ukraine), Drebet Mikhail , Martyniuk Vadym ,   Podilski Tovtry National Nature Park (Kamianets-Podilsky, Ukraine), Lishchuk Anastasia ,   Podilski Tovtry National Nature Park (Kamianets-Podilsky, Ukraine),   Kamianets-Podilskyi National Ivan Ohienko University (Kamianets-Podilskyi, Ukraine)
Published: August 2021

Most of the available data on bats in the national park are related to the monitoring of their number in wintering sites, and the study of summering bat populations remains an important task for further monitoring of biodiversity of the Podilski Tovtry National Nature Park. Bats are an important indicator group of animals for assessing the state of conservation of faunal groups and studying the dynamics of biodiversity of nature reserves. Bats depend on the availability of suitable sites and are the first to respond to changes in the natural habitat. Acoustic monitoring was carried out using an Echo Meter Touch Ultrasonic Modules detector and a Xiaomi Mi A2 Lite smartphone. The analysis of sound signals was performed in the Echo Meter software (version 2.7.23) from Wildlife Acoustics, as well as in the Kaleidoscope bat software. Bats were also trapped using mist nets. Natural shelters were inspected using a Trotec BO26 professional endoscope. Ten species of bats were studied: Myotis nattereri, Myotis daubentonii, Plecotus auritus, Barbastella barbastellus, Nyctalus leisleri, Nyctalus noctula, Pipistrellus nathusii, Pipistrellus kuhlii, Pipistrellus pygmaeus, and Eptesicus serotinus. The most common are species of the genus Pipistrellus and the species Nyctalus noctula (47.5%). River valleys are important migration corridors for migratory animal species. Seasonal activity of bats on survey transects is characterized by two peaks: spring (May) and autumn (September) migration periods. Acoustic activity of bats on survey transects lasts for eight months, from March to November. Autumn migration activity is longer than in spring. In the first decade of October, several thousand individuals of Nyctalus noctula were recorded flying in the valley of the Muksha River, near Tarasivka village, Kamianets-Podilsky Raion. The obtained data will improve the performance of work on assessing the state of conservation of faunal groups and changes in natural ecosystems. Preliminary results of the study will contribute to the organization of the program of acoustic monitoring of bats of the Podilski Tovtry National Nature Park.