bluuebunny/crossref_metadata_2025_split huggingface dataset:
Damage to inverse hybrid laminate structures: an analysis of shear strength test
Authors: Frankiewicz Mariusz , Ziółkowski Grzegorz , Dziedzic Robert , Osiecki Tomasz , Scholz Peter 
Published: July 2022

Abstract
Hybrid laminates with continuous fiber reinforcement, such as glass reinforced aluminium laminate (GLARE), aramid reinforced aluminum laminate (ARALL), or carbon reinforced aluminum laminate (CARALL), have been developed to increase the lightweight potential and fatigue resistance applied for aircraft structures. However, the use of thermosetting matrices imposes material limitations regarding recycling, malleability, and manufacturing-cycle times. The inverse hybrid laminate approach is based on a continuous fiber-reinforced thermoplastic matrix, in which a metal insert is integrated. For efficient manufacturing of the novel composites in high-volume production processes, conventional sheet metal–forming methods have been applied. It helped to reduce the cycle times and the costs of the forming equipment compared to currently used hybrid laminate-processing technologies. The present study analyzes the damage to the inverse hybrid laminate structures resulting from the interlaminar shear strength test. The tests were performed for eight laminate material configurations, which differed by the type and directions of the reinforced glass and carbon fibers in the polyamide matrix and the number of the fiber-reinforced polymer (FRP) layers in the laminates. Industrial computed tomography and scanning electron microscopy were used for analysis. Observed damages, including fiber–matrix debonding, fiber breakages, matrix fractures, interfacial debonding, and delamination in selected areas of the material, are strictly dependent on the laminate configurations. FRP layers reinforced by fibers perpendicular to the bending axis presented better resistance against fractures of the matrix, but their adhesion to the aluminum inserts was lower than in layers reinforced by fibers parallel to the bending axis.
Shopfloor Management – A Tool of Lean Management
Authors: Wester Lars Christopher , Hitka Milos 
Published: July 2022

Abstract
Lean management is an approach to continuous process optimisation. The methodology involves the entire value chain. The individual links are made more efficient and thus leaner. The main goal of lean management is to use various lean methods, procedures and thinking principles to coordinate all processes and activities in such a way that any kind of waste along the value chain is avoided in a holistic production system. This would result in the following main difficulties: Transporting information quickly and purposefully to the right places in the company. This is where the lean tool of shopfloor Management (SFM) comes into its own. The shopfloor board is the communication platform of SFM. Shopfloor takes place very close to the employees in a direct interaction between employees and managers. Staff are directly involved in the process and should and can contribute their own approaches to solutions. The article provides an overview of the structure of shopfloor management (SFM) and proves that the goals set by the introduction itself – namely the optimised flow of information in the company with the involvement of all employees – are achieved through shopfloor Management. The method of a structured interview with 63 respondents is used to obtain data.
Rare Blood Groups in ABO, Rh, Kell Systems – Biological and Clinical Significance
Authors: Ristovska Elena , Bojadjieva Тatjana Makarovska , Velkova Еmilija , Dimceva Аnita Hristova , Todorovski Bojan , Tashkovska Marija , Rastvorceva Rada Grubovic , Bosevski Marijan 
Published: July 2022

Abstract

Background: The frequency of ABO, Rh and Kell blood group antigens differs among populations of different ethnic ancestry. There are low-frequency antigens (<1%) and high-frequency antigens (>90%). A rare blood group is defined as the absence of a high-frequency antigen in the general population, as well as absence of multiple frequent antigens within a single or multiple blood group systems.

Aim: To perform red blood cell typing and to calculate the antigen and phenotype frequencies, in order to identify rare blood group donors within the clinically most important АВО, Rh and Kell systems.

Material and Methods: АВО, Rh (D, C, E, c, e) and Kell (K) antigen typing was performed using specific monoclonal sera and microplate technique, while Cellano (k) typing was performed with a monoclonal anti-k, antihuman globulin and column agglutination technique. Weak ABO subgroups were determined using the absorption elution method or molecular genotyping (PCR-SSP).

Results: ABO antigen frequency is: A (40.89%), O (34.22%), B (16.97%), AB (7.92%) and weak ABO subgroups (0, 009 %). The established genotypes were AxO1 (0, 0026%) and AxB (0, 001%). Rh antigen frequency is: D (85.79%), C (71.7%), c (76.0%), E (26.0%) and е (97.95%). The most common Rh pheno-type is the DCcee (32.7%) while the rarest phenotype is the DCCEE phenotype (0. 003%). The prevalence of K and k antigen is 7.5% and 99.94%, respectively. The frequency of the rare phenotype K+k- is 0.06%.

Conclusion: Large scale phenotyping of blood group antigens enables the identification of blood donors with rare blood groups for patients with rare phenotypes or with antibodies to high-frequency antigens and to frequent antigens within one or more blood group systems.
Effects of Standard and Individualized Dialysate Sodium in Chronic Hemodialysis Patients Upon Echocardiography Parameters
Authors: Eftimovska-Otovikj Natasha , Stojceva-Taneva Olivera , Petkovikj Natasha 
Published: July 2022

Abstract

Aims: This study assessed the effects of individualized dialysis sodium prescription on changes of echo-cardiography in hemodialysis (HD) patients.

Methods: 77 chronic hemodialysis patients were analysed. In the first phase all patients underwent dialysis with standard dialysate sodium of 138 mmol/L followed by the second phase where dialysis was performed with individualized dialysate sodium concentration according to average pre HD serum sodium concentration. After the first phase, the subjects were divided into 3 groups: normotensive, hypertensive and hypotensive based on the average pre-HD systolic BP during the first phase. In all patients echocardiography was performed at the end of the first and second phase.

Results: Patients had no statistical significant change in blood pressure compared with standard dialysate sodium, only statistical significant change in interdialytic weight gain (IDWG). By dividing the patients, sodium individualization resulted in significantly lower blood pressure and IDWG (p=0.018) in hyper-tensive patients, whereas normotensive patients showed only significant decrease in IDWG (p=0,004). Hypertensive patients had significant highest sodium gradient compared to other patients (p<0.05), followed by significant increase of 0,6% IDWG confirmed with univariate regression analysis. In all patients, echocardiography analysis showed an increase of 2.04 mm of LVDD by increasing the sodium gradient for 1 mmol/L and significantly increased LVM of 35.69 gr by 1 kg increase in IDWG.

Conclusions: A reduction of the dialysate sodium concentration based on the pre HD serum sodium level of the patient, reduced the SBP, DBP and IDWG and decreased the volume overload upon the heart and consequently heart hypertrophy assessed by echocardiography.
Barreras invisibles: Validación de un instrumento para valorar la actitud hacia las personas con discapacidad intelectual
Authors: García-Sanz Mari Paz , Belmonte María Luisa , Galián Begoña 
Published: July 2022

Introducción. El fomento de la inclusión educativa, social y laboral está generando que las personas con discapacidad intelectual sean aceptadas por la comunidad como miembros de pleno derecho. Sin embargo, las actitudes y conductas hacia estas personas no siempre son positivas.
Método. El propósito de esta investigación fue, partiendo de un modelo teórico denominado Escuela de Vida de FUNDOWN, validar un instrumento sencillo que permita recoger información sobre el posicionamiento que muestran adolescentes y jóvenes hacia las personas con discapacidad intelectual. Para ello, se elaboró un cuestionario inicial, que, tras someterse a juicio de expertos y expertas, se aplicó a 276 estudiantes de un Instituto de Educación Secundaria de Murcia (España), a través de una investigación cuantitativa no experimental.
Resultados. Mediante el cálculo de un análisis factorial exploratorio y otro confirmatorio, aplicando el modelo de ecuaciones estructurales, se obtuvo un cuestionario de dos factores.
Discusión y conclusiones. La validez de constructo y fiabilidad resultaron aceptables.
Escala de autoestima de Rosenberg (EAR): Análisis de la estructura factorial y propuesta de una nueva versión de solo ítems positivos
Authors: Vilca Lindsey W. , Travezaño-Cabrera Aaron , Santos-Garcia Stephany 
Published: July 2022

Introducción. El objetivo fue evaluar la estructura factorial y proponer una nueva versión de la Escala de autoestima de Rosenberg de solo ítems positivos para superar el efecto de método asociado a los ítems negativos.
Método. Se planteó una versión A (ítems positivos y negativos) y una versión B (solo ítems positivos). Se recolectó una muestra de 350 universitarios para cada versión.
Resultados. El AFC evidencia que el modelo unidimensional (A1) de la versión A, no presentan adecuados índices de ajuste. También se encontró que añadir un factor específico para ítems negativos (modelo A2) y otro factor para ítems positivos (modelo A3) no mejora los índices de ajuste. Un modelo bidimensional (modelo A4), tampoco mejorar los índices de ajuste. Respecto al modelo unidimensional de la versión B, este presenta un ajuste superior frente al modelo original (modelo A1)
Discusión y conclusiones. Se concluye que la versión B, una propuesta de solo ítems postivos, mide adecuadamente la autoestima, ya que no tiene ítems negativos y además concuerda con el planteamiento original de Rosenberg.
Further evidence for Cretaceous wildfires: macro-charcoal from the Malha Formation at Wadi Budra, west-central Sinai, Egypt
Authors: El Atfy H. , Kora M. , Spiekermann R. , Jasper A. , Uhl D. 
Published: July 2022

Abstract
Fossil evidence for wildﬁres, in form of fossil charcoal, is known from a large number of Cretaceous localities worldwide and it has repeatedly been argued that wildﬁres were connected to the evolution and radiation of angiosperms during this period. The present study provides new evidence (in form of macro-charcoal) for the occurrence of wildﬁres during deposition of the Lower Cretaceous (pre-Aptian) Malha Formation at Wadi Budra of the Sinai Peninsula, Egypt. Despite growing evidence for the worldwide occurrence of wildﬁres during the Cretaceous, the available database for pre-Aptian wildﬁres is still rather scarce for large regions when seen on a global scale, hampering causal interpretations concerning the interactions between ﬁre ecology and the evolution of ecosystems during these stages.
Case study in the Northern Cape (Loopeng area), South Africa, confirming occurrence of a collapsible sand soil structure in transported soils
Authors: Stapelberg F.D.J. 
Published: July 2022

Abstract
Testing was performed on transported soils belonging to recently deposited sandy-silty soil deposits occurring in and around Loopeng Village, Northern Cape Province, South Africa, in order to determine the occurrence and order of magnitude of a collapsible sand soil structure. Various empirical geotechnical characteristics including: in situ soil proﬁle structure description, particle grading curve and clay content, soil classiﬁcation, soil density and void ratio were compared to collapse potential values determined with oedometer testing, in order to judge the success with which the empirical characteristics can be utilised to predict the occurrence of a collapsible soil structure.
From the results it is clear that a collapsible sand structure exists in the transported soils (both aeolian and ﬁne alluvial) and that the empirical descriptors mostly correctly indicate the occurrence of the particular soil structure when compared to existing studies on collapsible sands. The one descriptor which reﬂects a relatively poor prediction of a collapsible soil structure, namely the in situ soil proﬁle structure description, is considered to be a poor indicator due to erroneous or poor in situ soil structure observations. These poor observations result from unfavourable local conditions namely dry, dusty soil conditions and very brief intact standup time of test pit side walls.
Scrambler Therapy Enhances Quality of Life in Cancer Patients in a Palliative Care Setting: A Randomised Controlled Trial
Authors: Kashyap Komal , Singh Vishwajeet , Dwivedi Sada Nand , Gielen Joris , Bhatnagar Sushma 
Published: July 2022

Objectives:
Given the known side effects of opioids and the negative impact of these side effects on quality of life (QOL), there is a need for therapies that can reduce opioid intake and improve QOL in patients suffering from cancer pain. Scrambler therapy (ST) is a neuromodulatory therapy that has been shown to reduce cancer pain, but its effect on QOL is not well understood. This study intended to evaluate the efficacy of ST for enhancing QOL in cancer patients through minimising pain and opioid intake.

Material and Methods:
This was a randomised controlled trial including 80 patients with head, neck and thoracic cancer. In both arms, patients were given pain management drugs following the WHO analgesic ladder for ten consecutive days. In the intervention arm each day ST was given. Pain, morphine intake, and QOL (WHOQOL-BREF) were assessed.

Results:
All domains of QOL improved significantly in the intervention arm in comparison to the control arm. In comparison to baseline, pain improved in both the intervention and the control arm on day 10 and at follow-up. However, QOL significantly improved in the intervention arm, while morphine intake decreased. In the control arm, QOL deteriorated, while morphine intake increased.

Conclusion:
ST significantly improved QOL. Since the increase in QOL took place along with a significantly lower morphine intake, the improvement in QOL may not only be explained by lower pain scores but, also, by a reduced intake of morphine, because the lower dosages of morphine will decrease the likelihood of side effects associated with the drug.
Accanto
Authors: Лахенман Х. 
Published: July 2022

Настоящая публикация представляет собой перевод вступительного слова Хельмута Лахенмана перед исполнением его композиции «Accanto» на концерте 23 ноября 1982 года в Цюрихе. Первая публикация: Lachenmann H. Accanto // Musik-Konzepte. Band 61/62: Helmut Lachenmann // hrsg. von H.-K. Metzger und R. Riehn. München: edition text+kritik, 1988. S. 67-74.
This publication presents a translation of Helmut Lachenmann's introductory note to the performance of his work Accanto at the concert on 23 November 1982 in Zurich. First publication: Lachenmann H. Accanto // Musik-Konzepte. Band 61/62: Helmut Lachenmann // hrsg. von H.-K. Metzger und R. Riehn. München: edition text+kritik, 1988. S. 67-74.
Alexander Khubeev Shares His Experience of Working in Germany
Authors: Амрахова А.А. , Хубеев А.М. 
Published: July 2022

В данном интервью композитор А. Хубеев делится впечатлениями о месяцах, проведенных им в Германии в качестве стипендиата Берлинской академии искусств. Важнейшим аспектом беседы становится констатация изменений, произошедших в современном музыкальном искусстве: распространение мультимедийной технологии, изменение самого музыкального материала. А. Хубеев подчеркивает общую ситуацию многообразия подходов к сочинению музыки. Своеобразие момента заключается также в том, что между приверженцами разных направлений нет антагонизма: сегодня любое «стилевое поветрие» имеет право на жизнь, не дожидаясь своего признания в парадигме уже сложившихся эстетических категорий.
In this interview, the composer A. Khubeev shares his impressions of the months he spent in Germany as a fellow of the Berlin Academy of Arts. The most important aspect of the conversation is the composer’s assertion that the contemporary art of music have undergone some notable changes: the ubiquity of multimedia technology, the change in musical material. A. Khubeev emphasizes the overall diversity of approaches to the composing of music. Besides, the current moment is specifically featured by the fact that there is no antagonism between the followers of different trends: any kinds of “stylistic crazes” of today have their right to exist, without waiting for their recognition within the paradigm of already established aesthetic categories.
Philippe Leroux: “To Create a Sensation of Continuum”
Authors: Купровская Е.О. , Леру Ф. 
Published: July 2022

В беседе с Е. Купровской французский композитор Филипп Леру вспоминает о своей работе в IRCAM, о царящем там творческом духе. Композитор также рассказывает о процессе сочинения музыки, который трактует как предварительное «ви́дение» звукового потока и придание ему энергетической, или морфологической, логики, и объясняет свой повышенный интерес к буквам как концептуальной основе музыкального сочинения.. Леру делится своим опытом преподавания композиции и выражает оптимизм по поводу социального положения композитора во Франции.
In a conversation with E. Kouprovskaia, the French composer Philippe Leroux recalls his work at the IRCAM, and the creative spirit that reigns there. The composer also talks about the process of composing music, which he interprets as a preliminary “vision” of the sound stream and giving it an energetic, or morphological, logic, and explains his increased interest in letters as the conceptual basis of musical composition. Leroux shares his experience of teaching composition and expresses his optimism about the social position of a composer in France.
PROBLEMS OF MANAGING THE STRATEGIC DEVELOPMENT OF THE NATIONAL ECONOMY WHILE GROWING THREATS FROM THE EXTERNAL ENVIRONMENT
Authors: Тебекин Алексей Васильевич 
Published: July 2022

Рассмотрены основные проблемы управления стратегическим развитием национальной экономики в условиях нарастающих угроз внешней среды. Показано, что основные пути их решения связаны: с целеполаганием на восстановление и дальнейшее строительство технологической «лестницы» российской экономики; с учетом ошибок и просчетов, допущенных при реализации программы национального социально-экономического развития «Стратегия-2020» и при формировании программы национального социально-экономического развития «Стратегия-2030»; с формированием полномасштабной и действенной федеральной программы импортозамещения; с учетом допущенных ошибок и просчетов в решении проблем импортозамещения, реализуемых в ответ на введение Западом антироссийских санкций в 2013-2014 гг.; с рациональным распределением финансовых ресурсов между традиционными и инновационными направлениями отраслей хозяйствования; с фундаментальным переосмыслением модели национальной экономики, направленной на создание конкурентной среды для бизнеса; с радикальной трансформацией структуры национальной экономики, ориентированной на переход к доминированию отраслей новых технологических укладов.
The article considers the main problems of managing the strategic development of the national economy while growing threats from the external environment. It is shown that the main ways to solve them are related to: goalsetting for the restoration of the technological “ladder” of the Russian economy; taking into account the errors of miscalculations made in the implementation of the national socio-economic development program “Strategy-2020” and in the formation of the national socio-economic development program “Strategy-2030”; with the formation of a full-scale and effective national import substitution program; taking into account the mistakes made and miscalculations in solving the problems of import substitution made after the introduction of Western sanctions in 2013-2014; with a rational distribution of financial resources between traditional and innovative areas of economic sectors; with a fundamental rethinking of the model of the national economy, aimed at creating a competitive environment for business; with a radical transformation of the structure of the national economy, focused on the transition to the dominance of industries of new technological modes.
METHODOLOGICAL ASPECTS OF ECONOMIC POTENTIAL EVALUATION OF THE REGION
Authors: Морозов Игорь Владимирович 
Published: July 2022

Статья посвящена исследованию методических подходов к оценке экономического потенциала региона. Целью исследования является обоснование необходимости формирования центра мониторинга и управления региональным развитием, который на системной основе будет проводить оценку его экономического потенциала и разрабатывать программы сбалансированного развития. Автором показано, что отличия в существующих методиках оценки экономического потенциала региона состоят в применяемых методиках расчета интегрального показателя и видении объектной структуры регионального потенциала. Обоснована необходимость учета институциональных факторов как источника качественных преобразований в регионе и применения при расчете уровня экономического потенциала множественного корреляционнорегрессионного анализа. Научная новизна полученных результатов заключается в разработке подхода к управлению региональным развитием, базирующимся на комплексном применении метода мультипликативного регрессионного анализа и когнитивного моделирования на базе цифровых технологий учета и информационных систем обработки полученных данных.
The article is devoted to the study of methodological approaches to assessing the economic potential of the region. The purpose of the study is to substantiate the need to form a monitoring and management center for regional development, which will systematically assess its economic potential and develop programs for its balanced development. The author shows that the differences in the existing methods of assessing the economic potential of the region consist in the methods used to calculate the integral indicator and the vision of the object structure of the regional potential. The necessity of taking into account institutional factors as a source of qualitative transformations in the region and the use of a multiplicative regression model in calculating the level of economic potential is substantiated. The scientific novelty of the obtained results lies in the development of an approach to regional development management based on the integrated application of the method of multiplicative regression analysis and cognitive modeling, based on digital accounting technologies and information systems for processing and analyzing the data obtained.