bluuebunny/crossref_metadata_2025 huggingface dataset:
Embodied Energy and Embodied Carbon Consumption Analysis of 36-Type Simple House Building Materials
Authors: Uda Subrata Aditama K.A.
Published: August 2021

Housing is a basic necessity for everyone. Each country seeks to fulfill its citizens' housing needs. One of which is done by the Indonesian government, whose program is one million houses for the needy. The negative impact of this program is in the form of extensive land exploitation and environmental damage due to construction implementation. Building material is the main element in construction activities, where the material production process consumes much energy and produces carbon dioxide (CO2). The choice of environmentally friendly material will reduce embodied energy and carbon during the building's life cycle. This study calculates the amount of embodied energy and embodied carbon on building materials used in the residential buildings of type 36 simple houses of great interest to Indonesian people. The results showed that Brick Stone, Zink Roof, Cement, and Timber materials are the dominant materials that consume more than 70% embodied energy and produce embodied carbon, around 80% of total energy. The total embodied energy in building materials is 127,714.66 MJ with carbon as much as 10,257.48 KgCO2. Based on the building area, the embodied energy is 3,547.63 MJ /m2, and carbon is 284.93 KgCO2 /m2. A large amount of energy and carbon produced by buildings will impact the high pollution of the environment, contributing to global warming.
Zombie Firms, Corporate Restructuring and Relationship Banking: Credit Guidance as a Key to Tackle Zombie Lending?
Authors: Fischer Felix Bernhard
Published: August 2021

Economists have examined the rise of so-called zombie firms in recent years. Such firms remain in financial distress for a prolonged period while financial creditors keep them alive through continued lending. Based on signaling theory, we investigate zombie firms in the context of corporate restructuring and relationship banking. Combining a theoretical approach with a multiple case study on German medium-sized firms facing private workouts, we derive the following main propositions: (i) Banks face information asymmetry and may have incentives for loan extension (i.e., rescheduled installments and additional collateral) when deciding about restructuring financing. In the case of financing unviable restructuring strategies, this can lead to the emergence of zombie firms. (ii) For this reason and in contrast to recent research, not only weakly capitalized but also healthy banks may face such incentives and might end up in financing zombie firms. (iii) Relationship banking reduces bank information asymmetry. Thus, it may enable banks to detect clients’ distress situations in the early stages and to support resolving them. Hence, guiding and inspecting banks (i.e., credit guidance) to carry out supportive relationship banking might be a key to preventing the emergence of zombie firms. The propositions bear several implications relevant to academic research, bank management and banking regulation.
Die fictio legis Corneliae in P.Berol. 11753 A + 21294 A
Authors: Ma Sánchez-Moreno Ellart Carlos
Published: August 2021

The discovery of P.Berol. 11753 A and its publication by W. Brashear in 1988 brings several novelties that allow a new reconstruction of the first lines of P.Berol. 21294. The main novelty is that the first part of the text dealt with the fictio legis Corneliae.
Zur Entstehung der Hamburger Papyrussammlung
Authors: Essler Holger
Published: August 2021

The article reconstructs the foundation of the papyrus collection in Hamburg and its acquisitions through the “Deutsches Papyruskartell“. Documents about the restoration and publication of the papyri allow to identify the inventory numbers belonging to single lots.
Alchemical stanzaic poetry (muwashshaḥ) by Ibn Arfaʿ Raʾs (fl. twelfth century)
Authors: Forster Regula
Published: August 2021

The twelfth-century alchemist Ibn Arfaʿ Raʾs is best known for his collection (dīwān) of alchemical poems entitled Shudhūr al-dhahab (“The Splinters of Gold”). However, he is also credited with other works, including stanzaic poetry (muwashshaḥāt) on alchemy. This paper presents the current state of the scholarship concerning life and works of Ibn Arfaʿ Raʾs, and then focuses on three strophic poems attributed to this alchemist. It includes first editions and English translations of all three poems, and argues that at least two of the poems are likely to have been authored by Ibn Arfaʿ Raʾs, while one is a literary imitation (muʿāraḍa) and therefore probably not a work of Ibn Arfaʿ Raʾs himself. Furthermore, the article discusses the literary features of the poems as well as their historical contexts and their – somewhat limited – reception. This also allows us to think of Ibn Arfaʿ Raʾs in a less regional Andalusī-Maghribī context, and consider if he perhaps moved east at some point of his life, which would explain the reception history of his poems, both those included in the dīwān and the muwashshaḥāt.
“Take dragon’s blood and crush it to a fine powder”: recipes in the alchemical composite manuscript MS Gotha orient A. 1162
Authors: Braun Christopher
Published: August 2021

In the Middle Ages, the recipe was of central importance for the safeguarding and transmission of knowledge. This holds true for the scientific traditions of both the East and the West. Recipes have been transmitted in a multitude of manuscripts, either alone or in combination with other recipes and works. This article presents a collection of recipes for the production of inks that have been handed down in an alchemical collective manuscript. The collection also contains a recipe to ward off the pestilence. This combination of alchemy, healing rituals and ink production is more common than one might think. The question arises whether this is due to pure coincidence or whether such collections reflect a literary tradition?
3D Stent Graft Guidance based on Tracking Systems for Endovascular Aneurysm Repair
Authors: Jäckle Sonja , Eixmann Tim , Matysiak Florian , Sieren Malte Maria , Horn Marco , Schulz-Hildebrandt Hinnerk , Hüttmann Gereon , Pätz Torben
Published: August 2021

In endovascular aneurysm repair (EVAR) procedures, the stent graft navigation and implantation is currently performed under a two-dimensional (2D) imaging based guidance requiring X-rays and contrast agent. In this work, a novel 3D stent graft guidance approach based on tracking systems is introduced. A calibration method and the visualization of the stent graft guidance are described. The tracking based stent graft guidance is evaluated by conducting an EVAR procedure on a torso phantom using a stent graft system equipped with an optical fiber and three EM sensors. The physicians were able to navigate the stent graft to the landing zone, and to place and implant it as intended using the introduced guidance. This showed that the application of the stent graft guidance is feasible in a clinical environment and promising for the reduction of radiation and contrast agent.
Slicer-DeepSeg: Open-Source Deep Learning Toolkit for Brain Tumour Segmentation
Authors: Zeineldin Ramy A. , Weimann Pauline , Karar Mohamed E. , Mathis-Ullrich Franziska , Burgert Oliver
Published: August 2021

Purpose Computerized medical imaging processing assists neurosurgeons to localize tumours precisely. It plays a key role in recent image-guided neurosurgery. Hence, we developed a new open-source toolkit, namely Slicer-DeepSeg, for efficient and automatic brain tumour segmentation based on deep learning methodologies for aiding clinical brain research. Methods Our developed toolkit consists of three main components. First, Slicer-DeepSeg extends the 3D Slicer application and thus provides support for multiple data input/ output data formats and 3D visualization libraries. Second, Slicer core modules offer powerful image processing and analysis utilities. Third, the Slicer-DeepSeg extension provides a customized GUI for brain tumour segmentation using deep learning-based methods. Results The developed Slicer- DeepSeg was validated using a public dataset of high-grade glioma patients. The results showed that our proposed platform’s performance considerably outperforms other 3D Slicer cloud-based approaches. Conclusions Developed Slicer-DeepSeg allows the development of novel AIassisted medical applications in neurosurgery. Moreover, it can enhance the outcomes of computer-aided diagnosis of brain tumours. Open-source Slicer-DeepSeg is available at github.com/razeineldin/Slicer-DeepSeg.
Electromagnets for an endoscopic anastomosis tool in the colon
Authors: Steger Jana , Zimmermann Anne , Wittenberg Thomas , Wilhelm Dirk
Published: August 2021

The goal of our research work is the development of a novel endoscopic anastomosis device for the colon. One of the main challenges in this context is the application of forces at the endoscope tip to rejoin the two bowel endings. Thus, we focus on a magnetic two-part compression implant approach. The implant halves are detached from the applicator units by means of electromagnets. In this contribution we present the results of our experiments to determine the implant design with special focus on tissue compression forces and the resultant electromagnet dimensioning to estimate size requirements of the application/detachment system. To achieve the targeted compression forces derived from literature, we used cubic N52 magnetized neodymium magnets1 with a side length of 5 mm and mild steel screws. For these magnets, we evaluated a required electromagnetic repulsion force of 4.1 N. For the electromagnetic detachment system this led to the need for 166 windings for the coils on oral side, and 146 windings for the coils at the aboral side. Based on these requirements, a colonoscope diameter (~14 mm) increase of 10.6 mm on the oral side and of 12 mm on the aboral side due to the application device must be assumed. Nevertheless, this diameter still remains within the size range of other colonoscopic tools, such as e.g., circular staplers.
Flexible Facile Tactile Sensor for Smart Vessel Phantoms
Authors: Fischer Nikola , Scheikl Paul , Marzi Christian , Galindo-Blanco Barbara , Kisilenko Anna , Müller-Stich Beat P. , Wagner Martin , Mathis-Ullrich Franziska
Published: August 2021

Smart medical phantoms for training and evaluation of endovascular procedures ought to measure impact forces on the vessel walls worth protecting to provide feedback to clinicians and articulated soft robots. Recent commercial smart phantoms are expensive, usually not customizable to different applications and lack accessibility for integrated development. This work investigates piezoresistive films as highly integratable flexible sensors to be used in arbitrary soft vessel phantom anatomies over large surfaces and curved shapes providing quantitative measurement in the force range up to 1 N with 0.1 N resolution. First results show promising performance at the point of calibration and in a 5 mm range around it, with absolute measuring error of 28 mN and a standard deviation of ±10 mN and response times <500 ms. Future work shall address the optimization of response time and sensor shapes as well as the evaluation with experienced clinicians.
Interaction concept and system architecture for the sterile information system OR-Pad in the perioperative area
Authors: Frommer Sina M. , Ryniak Claudia , Junger Denise , Hirt Bernhard , Stenzl Arnulf , Burgert Oliver
Published: August 2021

Access to clinical information during interventions is an important aspect to support the surgeon and his team in the OR. The OR-Pad research project aims at displaying clinically relevant information close to the patient during surgery. With the OR-Pad system, the surgeon shall be able to access case-specific information, displayed on a sterilepackaged, portable display device. Therefore, information shall be prepared before surgery and also be available afterwards. The project follows an user-centered design process. Within the third iteration, the interaction concept was finalized, resulting in an application that can be used in two modes, mobile and intraoperative, to support the surgeon before/after and during surgery, respectively. By supporting the surgeon perioperatively, it is expected to improve the information situation in the OR and thereby the quality of surgical results. Based on this concept, the system architecture was designed in detail, using a client-server architecture. Components, communication interfaces, exchanged data, and intended standards for data exchange of the OR-Pad system including connecting systems were conceived. Expert interviews by using a clickable prototype were conducted to evaluate the concepts.
Collaborative Robot as Scrub Nurse
Authors: Muralidhar Deutschland , Sirasala Shiva , Jammalamadaka Venkata , Spiller Moritz , Sühn Thomas , Illanes Alfredo , Boese Axel , Friebe Michael
Published: August 2021

Under-staffing of nurses is a significant problem in most countries. It is expected to rise in the coming years, making it challenging to perform crucial tasks like assessing a patient's condition, assisting the surgeon in medical procedures, catheterization and Blood Transfusion etc., Automation of some essential tasks would be a viable idea to overcome this shortage of nurses. One such task intended to automate is the role of a 'Scrub Nurse' by using a robotic arm to hand over the surgical instruments. In this project, we propose to use a Collaborative Robotic-arm as a Scrub nurse that can be controlled with voice commands. The robotic arm was programmed to reach the specified position of the instruments placed on the table equipped with a voice recognition module to recognize the requested surgical instrument. When the Surgeon says "Pick Instrument", the arm picks up the instrument from the table and moves it over to the prior defined handover position. The Surgeon can take over the instrument by saying the command "Drop". Safe pathways for automatic movement of arm and handover position will be predefined by the Surgeon manually. This concept was developed considering the convenience of the Surgeon and the patient's safety, tested for collision, noisy environments, positioning failures and accuracy in grasping the instruments. Limitations that need to be considered in future work are the recognition of voice commands which as well as the returning of the instruments by the surgeon in a practical and safe way.
On closed classes in partial k-valued logic that contain all polynomials
Authors: Alekseev Valeriy B.
Published: August 2021

Let Pol

k
be the set of all functions of k-valued logic representable by a polynomial modulo k, and let Int (Pol

k
) be the family of all closed classes (with respect to superposition) in the partial k-valued logic containing Pol

k
and consisting only of functions extendable to some function from Pol

k
. Previously the author showed that if k is the product of two different primes, then the family Int (Pol

k
) consists of 7 closed classes. In this paper, it is proved that if k has at least 3 different prime divisors, then the family Int (Pol

k
) contains an infinitely decreasing (with respect to inclusion) chain of different closed classes.
Inhibition of PI3K/Akt and ERK signaling decreases visfatin-induced invasion in liver cancer cells
Authors: Miethe Candace , Torres Linda , Zamora Megan , Price Ramona S.
Published: August 2021

Objectives

Visfatin is found in adipose tissue and is referred to as nicotinamide phosphoribosyltransferase (Nampt). Visfatin has anti-apoptotic, proliferative, and metastatic properties and may mediate its effects via ERK and PI3K/Akt signaling. Studies have yet to determine whether inhibition of kinase signaling will suppress visfatin-induced liver cancer. The purpose of this study was to determine which signaling pathways visfatin may promote liver cancer progression.

Methods

HepG2 and SNU-449 liver cancer cells were exposed to visfatin with or without ERK or PI3K/Akt inhibitor, or both inhibitors combined. These processes that were assessed: proliferation, reactive oxygen species (ROS), lipogenesis, invasion, and matrix metalloproteinase (MMP).

Results

Inhibition of PI3K/Akt and combination of inhibitors suppressed visfatin-induced viability. ERK inhibition in HepG2 cells decreased visfatin-induced proliferation. ERK inhibitor alone or in combination with PI3K inhibitors effectively suppressed MMP-9 secretion and invasion in liver cancer cells. PI3K and ERK inhibition and PI3K inhibition alone blocked visfatin’s ROS production in SNU-449 cells. These results corresponded with a decrease in phosphorylated Akt and ERK, β-catenin, and fatty acid synthase.

Conclusions

Akt and ERK inhibition differentially regulated physiological changes in liver cancer cells. Inhibition of Akt and ERK signaling pathways suppressed visfatin-induced invasion, viability, MMP-9 activation, and ROS production.
Effects of boundary walls on the properties of settling spheres
Authors: Haider Sadia , Ullah Atta , Hamid Adnan
Published: August 2021

Numerical Simulations are performed, using Eulerian two fluid model (TFM) to investigate the effects of solid volume fraction and no-slip side walls on the settling particles. It is found that average settling velocity decreases with increasing volume fraction for both gas-solid (GS) and liquid-solid (LS) systems, in good agreement with the Richardson-Zaki

1
−
ϕ

n

${\left(1-\phi \right)}^{n}$

law. It was also noted that average velocity is independent of the boundary condition for both gas-solid (GS) and liquid-solid (LS) systems. The root mean square value of the solid volume fraction shows the increasing trend with volume fraction, caused by the many particle interactions. Furthermore, no-slip sidewalls were found to damp the velocity fluctuations quantitively, while following the well-known

ϕ

1
/
2

${\phi }^{1/2}$

scaling with volume fraction. Side walls were found to act as kinetic trap for the particles, damping the fluctuation near the walls and plateauing in the mid plane. These simulations showed that the GS system shows the higher solid fraction fluctuations that the LS system at the same Reynolds number, mainly because of the higher collision frequency (higher Stokes number) among the particles.
DFT study of electronic and thermodynamic properties of gold-rich intermetallic compounds, Ce2Au2Cd and CeAu4Cd2
Authors: Sagar Jyoti , Singh Reetu , Kumar Vijay , Kumar Sanjay , Singh Manish P. , Singh Rishi P.
Published: August 2021

Gold-rich rare earth intermetallic compounds (viz. Ce2Au2Cd and CeAu4Cd2) show unusual magnetic and physical properties, and they have extensive applications in electronic and mechanical industries due to their good electronic and thermal behavior with high mechanical strength. In the present research article, to take full advantage of technological importance of these materials, we have investigated the structural, electronic and thermodynamic properties of Ce2Au2Cd and CeAu4Cd2 ternary intermetallic compounds using density functional theory (DFT). The electronic band structure and density of state calculations show that Ce-f orbital electrons provide metallic character to both the compounds with strong hybridization of Au-p and Cd-p orbitals at the Fermi level. The effect of temperature has been studied on the various thermodynamic parameters using the quasi-harmonic Debye model. Thermodynamic properties show that CeAu4Cd2 compound has larger mechanical resistance (or high mechanical strength or hardness) and smaller randomness compared to Ce2Au2Cd with respect to temperature.
Ultrafast all optical XOR gate using photonic crystal-based nonlinear ring resonators
Authors: Shamsi Alireza
Published: August 2021

Optical logic gates can play crucial roles for designing all optical data processing circuits. Photonic crystals are one of the suitable platforms that can be used for designing all optical devices. In this paper an optical XOR gate was designed using nonlinear ring resonators. The proposed structure works are based on threshold switching. The working wavelength and the switching threshold of the resonators are 1550 nm and 1.8 W/μm2, respectively. The rise time is about 1 ps and the ON/OFF contrast ratio is about 16 dB.
Emission characteristics of GaInN/GaN multiple quantum shell nanowire-based LEDs with different p-GaN growth conditions
Authors: Katsuro Sae , Lu Weifang , Ito Kazuma , Nakayama Nanami , Sone Naoki , Okuno Koji , Iwaya Motoaki , Takeuchi Tetsuya , Kamiyama Satoshi , Akasaki Isamu
Published: August 2021

Improving current injection into r- and m-planes of nanowires (NWs) is essential to realizing efficient GaInN/GaN multiple quantum shell (MQS) NW-based light-emitting diodes (LEDs). Here, we present the effects of different p-GaN shell growth conditions on the emission characteristics of MQS NW-LEDs. Firstly, a comparison between cathodoluminescence (CL) and electroluminescence (EL) spectra indicates that the emission in NW-LEDs originates from the top region of the NWs. By growing thick p-GaN shells, the variable emission peak at around 600 nm and degradation of the light output of the NW-LEDs are elaborated, which is attributable to the localization of current in the c-plane region with various In-rich clusters and deep-level defects. Utilizing a high growth rate of p-GaN shell, an increased r-plane and a reduced c-plane region promote the deposition of indium tin oxide layer over the entire NW. Therefore, the current is effectively injected into both the r- and m-planes of the NW structures. Consequently, the light output and EL peak intensity of the NW-LEDs are enhanced by factors of 4.3 and 13.8, respectively, under an injection current of 100 mA. Furthermore, scanning transmission electron microscope images demonstrate the suppression of dislocations, triangular defects, and stacking faults at the apex of the p-GaN shell with a high growth rate. Therefore, localization of current injection in nonradiative recombination centers near the c-plane was also inhibited. Our results emphasize the possibility of realizing high efficacy in NW-LEDs via optimal p-GaN shell growth conditions, which is quite promising for application in the long-wavelength region.
Neolithization Processes of East Belgium: Supra-Regional Relationships Between Groups Highlighted by Technological Analysis of Lithic Industry
Authors: Denis Solène , Burnez-Lanotte Laurence , Trampota František
Published: August 2021

Technological analysis of variations in blade production and the flow of siliceous raw materials revealed new understandings of different types of socio-economic functioning on a supra-regional scale. In this article, we are focusing on supra-regional relationships between technical groups and the social dynamics involved in early Neolithic mobility within the communities of East Belgium. A detailed technological analysis was done to highlight discrete characteristics that permit the identification of distinct technical groups within the village of Vaux-et-Borset. Four technical groups have been identified in the Blicquy/Villeneuve-Saint-Germain village, whereas two technical groups have been highlighted for the previous Linear Pottery culture (LPC) occupation. The search for the origin of the different technical groups was to understand the micro-processes of Neolithization in East Belgium. A central area with a high-density population during the pioneer LPC colonization, Hesbaye became a peripheral occupation area of the Blicquy/Villeneuve-Saint-Germain culture. This fringe territory seemed to attract neighbouring communities in different ways. Multidirectional dynamics seems to characterize this small territory leading to the coexistence of a high diversity of technical groups.
Diplomacia “Bicultural” para a Criação de uma “Comunidade de História Compartilhada com a Humanidade”
Authors: Sobral Pedro
Published: August 2021

No âmbito da iniciativa “Uma Faixa e Uma Rota”, temos assistido a crescentes esforços por parte da China em criar laços mais estreitos com os países envolvidos nesta iniciativa transcontinental. Tais laços estendem-se aos mais variados domínios, inclusive à arte e cultura, com o objetivo de aproximar e fomentar o conhecimento mútuo das populações dos países envolvidos. O campo das Relações Internacionais caracteriza como “diplomacia pública” este tipo de contactos que envolvem o cidadão comum dos países em diálogo. Numa lógica construtivista, o presente artigo possui como objetivo propor o exercício de uma diplomacia pública “bicultural”, que faça uso de conquistas e realizações comuns do passado, com vista à construção futura de uma “Comunidade de História Compartilhada com a Humanidade” que complemente a noção de “Comunidade com Futuro Compartilhado com a Humanidade” defendida pela liderança chinesa. Como exemplo da aplicabilidade prática de tal tipo de diplomacia, é apresentado o caso da exposição “O País das Cidades Vidradas - 500 anos do Azulejo em Portugal”, que teve lugar no Museu do Palácio em Beijing, como exemplo recente de diplomacia pública “bicultural” entre a China e Portugal.
Dinámica geopolítica de las relaciones estratégicas entre la República Popular China y América Latina y el Caribe
Authors: Klinger Pevida Eduardo
Published: August 2021

Desde hace más de veinte años la República Popular China ha identificado a América Latina y el Caribe como posibles socios estratégicos capaces de combinar las necesidades de inversión para el desarrollo de la región con la disponibilidad financiera y tecnológica de China. La impresionante dinámica geopolítica ha aumentado las relaciones comerciales, financieras, sociales y humanas en general entre las partes. China es el segundo socio comercial de la región pero primero de la mayoría de las principales economías regionales. América latina y el Caribe constituyen igualmente el segundo destino de las Inversiones Directas de China al mundo. La intensificación y profundización de los vínculos económicos comerciales alcanzados catalizan un creciente interés en la región por ser partícipes en el desarrollo de la Franja y Ruta de la Seda para lo cual 19 naciones han firmado con Beijing Memorandos de Interés.
Mental health professionals discussing spiritual care for psychiatric outpatients: a qualitative study of multidisciplinary meetings
Authors: Cusveller Bart , van Garderen Maarten , Roozemond-Kroon Joan
Published: August 2021

Aim: To explore how mental health professionals address spiritual care for outpatients in weekly multidisciplinary care meetings (MDM), and to explore the barriers and facilitators in the ways health professionals address spiritual care in those meetings.

Method: Two teams of mental health professionals providing care for psychiatric outpatients are included. Qualitative data were collected from audio recordings of multidisciplinary meetings and from focus-group interviews afterwards. Data were analysed using ‘open coding’.

Results: Spiritual care was not frequently addressed mostly due to the requirements of the health insurance reimbursement system. Aspects of spirituality addressed in these meetings pertained mainly to meaningful daily activities. Addressing spiritual care was facilitated, on the other hand, by a holistic focus on health and recovery-oriented care.

Conclusion: In ambulatory mental healthcare spirituality is sparsely addressed and, when addressed, few aspects of spirituality come into view. Facilitating healthcare professionals’ awareness of their clinical perspective is an essential step to improve spiritual care for psychiatric outpatients.
Berührungslose Messung von Pitchwinkelabweichungen an Windenergieanlagen aus 150 m Entfernung
Authors: von Freyberg Axel , Helming Paula , Friedrich Jacob , Stöbener Dirk , Fischer Andreas
Published: August 2021

Die Windkraft stellt eine wichtige Energiequelle in Deutschland dar. Form und Lage der Rotorblätter von Windenergieanlagen haben dabei einen großen Einfluss auf die Effizienz und die Lebensdauer der Anlage. Geometrische Merkmale von Rotorblättern werden mit Blattschablonen, photogrammetrischen oder interferometrischen Messverfahren erfasst. Hierzu muss die Anlage jedoch gestoppt und ggf. mit Mustern bzw. Markern versehen werden. Für In-Prozess-Messungen ohne Manipulation der Windenergieanlage bietet sich das Prinzip der Laufzeitmessung an, auf dem sogenannte terrestrische Laserscanner aufbauen. Bisher unbekannt ist jedoch die erreichbare Messunsicherheit bei der Bestimmung von Pitchwinkeln.

In diesem Beitrag werden die Messunsicherheiten bei der Erfassung der Rotorblattoberfläche für Distanzen > 100 m experimentell untersucht und zur Bestimmung der Unsicherheit des Pitchwinkels mittels Monte-Carlo Simulation fortgepflanzt. Für die Betrachtung der Pitchwinkelunsicherheit wird unterschieden, ob die Nenngeometrie der Rotorblätter bekannt ist und absolute Aussagen über die Pitchwinkel getroffen werden können, oder ob die Nenngeometrie unbekannt ist und nur relative Pitchwinkelunterschiede zwischen den Rotorblättern ausgewertet werden können.
Medical interns’ attitudes towards One Health approach
Authors: Varer Akpinar Ceren , Durmaz Seyfi
Published: August 2021

Objectives

One Health approach to health considers human, animal, and ecosystem health as a whole and advocates cooperation across disciplines to reach the highest level of health. The aim of the study is to determine the attitudes of the medical interns’ toward the One Health approach and to evaluate related factors.

Methods

This cross-sectional study targeted all interns of the Faculty of Medicine of 2019–2020 academic year (n=356). Sociodemographic characteristics, health status, habits, and attitudes toward One Health were asked in the questionnaire, which was created by the researchers using the literature. The study data were collected based on self-report during occupational health and safety training, before the COVID-19 pandemic. Chi-square and logistic regression analyses were also performed.

Results

The study group included a fair gender distribution (47.8% female), and the average age was 23.6 ± 1.2. Out of the 316 participants, 40.2% had not heard the One Health concept before. In total, 85.4% of them declared a positive attitude toward the concept. The probability of high attitude was found to be 5.03 times (95% CI 1.10–23.12) higher in those with above-average success status and 4.08 times (95% CI 1.15–14.52) higher in those who had kept animals. In students’ responses to the attitude questionnaire items, the epidemic sub-dimension had the highest level as 86.1%, and the antibiotic resistance sub-dimension had the lowest level as 77.2%.

Conclusions

The current study revealed that the awareness on One Health concept among medical interns is limited, however, students’ attitudes are positive. Recent SARS-CoV 2 pandemic showed us the urgent need for proper implementation of’ One Health approach in the medical education curriculum. Meanwhile, One Health focused courses should be introduced into the curriculum of final year medicine and related programs.
Effects of exercise and quercetin on muscle energy charge in metabolic syndrome model of rats
Authors: Er Fatmanur , Çimen Behzat , Yılmaz Canan , Zorba Erdal , Türközkan Nurten
Published: August 2021

Objectives

This study was performed to investigate whether exercise and quercetin have an effect on muscle energy charge in the metabolic syndrome (MetS) model of rats.

Methods

Male Sprague-Dawley rats consisting of Control, Fructose, Quercetin, Exercise, Fructose + Exercise, Fructose + Quercetin, Fructose + Quercetin + Exercise groups were randomly divided into seven groups, six rats in each group. Consequently, it was determined that the 20% fructose supplement for 10 weeks with drinking water let to metabolic syndrome in the animals depending on the increase of systolic blood pressure, serum triglyceride, serum insulin and high HOMA-IR scores. MetS criteria were successfully established by oral fructose administration.

Results

ATP and AMP levels were higher in fructose and exercise groups, and ADP levels were lower. The energy charge increased in quercetin treated groups. We found that regular aerobic exercise and quercetin application might be beneficial in the fructose-mediated MetS in accordance with previous studies. However it was found that quercetin was more effective than exercise in muscle.

Conclusions

Consequently, it is thought that the regular aerobic exercise alone is a preventive method for the MetS and also it can be used together with quercetin as a beneficial treatment.
AGEs-related dysfunctions in PCOS: evidence from animal and clinical research
Authors: Tatone Carla , Di Emidio Giovanna , Placidi Martina , Rossi Giulia , Ruggieri Stefania , Taccaliti Chiara , D’Alfonso Angela , Amicarelli Fernanda , Guido Maurizio
Published: August 2021

Polycystic ovary syndrome (PCOS) is the most common female endocrine disorder in women in their reproductive age. In recent years, the role of advanced glycation end products (AGEs) in PCOS has gained great attention. AGEs are highly reactive molecules that can be assumed by diet or endogenously synthesized as by-products of metabolic processes. AGE deposition increases with aging, hyperglycemia, insulin resistance, and glycotoxin-rich diet. Therefore, it has become imperative to understand the underlying mechanism of AGEs actions and its downstream effects in PCOS pathophysiology. By integrating evidence from human studies and experimental models, the present review points out that altered AGE deposition is a common feature in all PCOS phenotypes. Searching for possible mechanisms involved in the adaptive response against glycation injury in oocytes and ovaries, the role of SIRT1, the main member of the mammalian sirtuin family, has also recently emerged. Therefore, further studies based on anti-AGE interventions could be helpful in creating innovative strategies for counteracting PCOS and its effects on fertility.
Assessment of the Quality of Chest Compressions Performed by Health-Care Workers Under Simulated Conditions
Authors: Boeva E. A. , Starostin D. O. , Milovanova M. A. , Antonova V. V. , Kargin D. Ch. , Abdusalamov S. N.
Published: August 2021

Aim of the study: to investigate chest compression parameters by city hospital staﬀ under simulated conditions with and without the use of a sensor device for quality control of chest compressions.

Materials and Methods. The study was conducted in Moscow's multidisciplinary hospitals. The study included 359 medical staﬀ members. The participants were divided into 4 groups: physicians (n=97) and nurses (n=82) from intensive care units (ICU) and physicians (n=92) and nurses (n=88) from specialized departments. Participants performed 2 minutes of chest compressions without a chest compressions quality control (CCQC) sensor, followed by 2 minutes of chest compressions using a deﬁbrillator sensor with audiovisual prompts from the device turned on. The percentage of target compressions, rate and depth of compressions were analyzed.

Results. Compression parameters in the group of ICU doctors were outside the reference range (% target compression — 0.5 (0.0; 14.5)%, rate 124.1±17.8 per minute, depth 5.6±1.1 cm), in the group of ICU nurses, the percentage of target compressions was 0.0 (0.0; 3.5)%, rate — 123.6±23.7 per minute, depth — 5.3±1.2 cm, in the group of specialist doctors the percentage of target compressions was 0.0 (0.0; 1.2) %, rate — 123.8±23.2 per minute, depth — 5.8±1.2 cm, in specialized nurses group the percentage of target compressions was 0.0 (0.0; 6.1)%, rate — 119.7±29.5 per minute, depth — 5.6±1.2 cm. There was a signiﬁcant improvement in compression performance in all groups when the sensor device was used: in ICU physicians the percentage of target compressions was 81.6 (64.80; 87.90)%, rate — 124.1±17.8 per minute, depth — 5.5±0.2 cm; in ICU nurses the percentage of target compressions was 69.1 (47.4; 80.6), rate — 123.6±23.7 per minute, depth — 5.3±0.3 cm, in specialist doctors the percentage of target compressions was 69.30 (50.50; 78.70), rate — 123.8±23.2 per minute, depth — 5.4±0.3 cm, in specialized nurses the percentage of target compressions reached 63.70 (42.90; 75.80), rate — 119.7±29.5 per minute, depth — 5.4±0.3 cm. There were no diﬀerences in analysed compression parameters between staﬀ in diﬀerent departments or positions.

Conclusion. Compression parameters (percentage of target compressions, rate, depth) were not inﬂuenced by the department where the staﬀ member worked and the position held (doctor or nurse). The use of a compression quality sensor device has improved compression parameters by reducing rate and normalizing depth. The use of the sensor does not increase the percentage of target compressions to the maximum values, indicating the need for training by an instructor.
Comparative Evaluation of Wound Healing Effect of Cord Blood Low Molecular Weight Fraction (Below 5 kDa) and Actovegin Drug in Skin Cryolesions
Authors:   Institute for Problems of Cryobiology and Cryomedicine of the National Academy of Sciences of Ukraine, Kharkiv, Gulevsky Oleksandr , Moisieieva Nataliia ,   Institute for Problems of Cryobiology and Cryomedicine of the National Academy of Sciences of Ukraine, Kharkiv, Gorina Olga ,   Institute for Problems of Cryobiology and Cryomedicine of the National Academy of Sciences of Ukraine, Kharkiv, Ukraine, Akhatova Yuliya ,   Institute for Problems of Cryobiology and Cryomedicine of the National Academy of Sciences of Ukraine, Kharkiv, Ukraine
Published: August 2021

This paper presents the results of comparative studies of the impact of the low molecular weight (below 5 kDa) cattle cord blood fraction (CBF) and the comparator drug Actovegin on tissue regeneration after skin cryoablation in rats. Here, a local contact cryoexposure was shown to result not only in destruction of all skin layers, but secondary ischemic damage to deeper and adjacent tissues as well. The use of an injection solution of CBF as a therapy for simulated cryolesion proved its pronounced wound healing effect, manifested in accelerated reparation, improved trophicity in an injured area due to hypervascularization and prevention of sclerotic processes. The introduction of CBF and Actovegin to rats accelerated the normalization of clinical blood parameters (RBC and WBC counts, alkaline phosphatase activity) in shorter terms as compared with the control. The obtained effect may be compared with Actovegin action.
Mandibular distraction of free iliac crest bone graft as treatment in a patient with a history of gunshot wound. Case Report
Authors: Jiménez-Álvarez Jaime Andrés , Duque-Montealegre Jesus Andrés , Valdés-Reyes José Manuel
Published: August 2021

Introduction: The combination of non-vascularized iliac crest bone graft and distraction osteogenesis in a second surgical intervention has only been described to achieve alveolar ridge augmentation. This technique is not recommended to treat bone defects of the jaws caused by firearm projectile.
Case presentation: 40-year-old woman with a segmental mandibular defect in the mandible body caused by the impact of a firearm projectile at the age of 1 year. The patient developed a severe Class II dentofacial anomaly that required a two-stage treatment; she underwent mandibular reconstruction with free iliac crest bone graft followed by a bilateral mandibular distraction at the level of the iliac crest bone graft. With these interventions, a remarkable improvement of the patient's malformation was achieved.
Conclusion: Horizontal distraction of the free iliac crest bone graft is a safe and predictable procedure to treat dentolabial anomalies requiring mandibular reconstruction. This procedure was performed in the patient without complications. Further studies on the effectiveness of this technique are required.
Atypical pityriasis rosea in a young Colombian woman. Case report
Authors: Porras-Villamil Julián Felipe , Hinestroza Angela Catalina , López-Moreno Gabriela Andrea , Parra-Sepúlveda Doris Juliana
Published: August 2021

Introduction: Pityriasis rosea is an acute and self-limited exanthemfirst described by Gilbert in 1860. Its treatment is symptomatic, and although there is no conclusive evidence, it has been associated with the reactivation of the human herpesviruses 6 and 7 (HHV-6 and HHV-7). Case presentation: A 28-year-old woman, from Bogotá, Colombia, ahealth worker, attended the emergency room due to the onset ofsymptoms that began 20 days earlier with the appearance of punctiformlesions in the left arm that later spread to the thorax, abdomen, opposite arm, and thighs. The patient reported a history of bipolar II disorder and retinal detachment. After ruling out several infectious diseases, and due to the evolution of the symptoms, pityriasis rosea was suspected. Therefore, treatment was started with deflazacort 30mg for 21 days, obtaining a favorable outcome and improvement of symptoms after 2 months. At the time of writing this case report, the patient had not consulted for recurrence. Conclusion: Primary care physicians should have sufficient training indermatology to recognize and treat dermatological diseases since manyof them are diagnosed based on clinical findings. This is an atypicalcase, in which the patient did not present with some of the pathognomonic signs associated with pityriasis rosea.
Interfaces multisensoriais: espacialidades híbridas do corpoespaço
Authors: Paraguai Luisa
Published: August 2021

O texto aborda o contexto de interfaces multisensoriais para pensar a relação humano/máquina e suas formas específicas de operar. Ao assumir a fisicalidade corpórea dos usuários e a materialidade de objetos e do espaço como dados de entrada, questiona-se a possibilidade de reconfiguração do corpo na sua própria apresentação e percepção a partir das interações mediadas neste contexto. Essa condição híbrida e processual aponta modos específicos de apreensão e de comunicação, que interessam discutir neste trabalho. Após as abordagens teóricas sobre interfaces tangíveis e enactives, alguns trabalhos artísticos serão apresentados, diante das específicas propostas de construção e experimentação de estados sensórios. Assim, as propostas artísticas potencializam o corpo e o espaço nas suas condições matéricas, na medida em que a percepção dos mesmos articula elementos interdependentes para a construção sensível da realidade como uma experiência fenomenológica.
Brazilian girls power in a rock camp
Authors: Guerra Paula , Bittencourt Luiza , Gelain Gabriela Cleveston
Published: August 2021

Neste artigo discutimos a desigualdade de gênero no rock através do caso do Girls Rock Camp (e seu antecedente Riot Grrrl) como palco de renegociação dessa identidade. Situando-nos no Girls Rock Camp POA, e através de uma metodologia de pendor qualitativo, procuramos: a) verificar seu histórico, os atores envolvidos e as estratégias de articulação, produção e divulgação; b) avaliar o perfil dos participantes e suas principais motivações e representações; c) investigar o uso do ethos Do-It-Yourself (DIY) e mediações tecnológicas na transmissão de conhecimento e práxis musical; e d) averiguar a relação da participação neste campo com a reconstrução fortalecida de uma identidadefeminina alicerçada no rock.
O que não é um meio?
Authors: Peters John Durham , Daros Otávio
Published: August 2021

Entrevista com o pensador norte-americano John Durham Peters, apresentando sua contribuição teórica para os estudos de mídia e comunicação.
Cidades, imagens, olhares da infância
Authors: Vaz Alexandre Fernandez
Published: August 2021

O trabalho se ocupa da infância como expressão estética em dois filmes do alemão Wim Wenders, Alice nas cidades e Lisbon Story. Para isso procura construir um jogo entre ambos, em que cada uma das obras aparece simultaneamente como testemunho histórico e síntese de questões que dizem respeito à existência e às próprias possibilidades do cinema. Comparecem, portanto, o amor, a amizade, a memória, a reelaboração do passado, as cidades, o progresso e a regressão, bem como as técnicas de captação e produção de imagens e sons, os destinos e a memória do cinema como inconsciente onírico de uma época. O apoio se encontra principalmente em Walter Benjamin, nem tanto em seus comentários sobre cinema, mas muito mais no que se refere ao que escreveu sobre a infância na cidade, demarcando, assim, como Wenders o fará, um olhar infantil, oblíquo em relação ao seu destino, mas não infantilizado, sobre as coisas do mundo.
Democracia popular, sem eleições nem políticos
Authors: Rudas Sebastián
Published: August 2021

LANDEMORE, Hélène. Open Democracy. Reinventing Popular Rule for the Twenty-First Century. New Jersey: Princeton University Press, 2020.
Postawy studentów Uniwersytetu Zielonogórskiego wobec osób z niepełnosprawnością ruchową oraz intelektualną
Authors: Kanar Mirosława
Published: August 2021

Cel badań: Celem niniejszego artykułu jest przedstawienie postaw studentów Uniwersytetu Zielonogórskiego wobec osób z niepełnosprawnością ruchową oraz z niepełnosprawnością intelektualną. W opracowaniu omówiono istotę, komponenty, mechanizmy kształtowania się postaw, a także dokonano przeglądu badań innych autorów, dotyczących postaw wobec osób z niepełnosprawnością ruchową oraz intelektualną.

Metodologia: W badaniach wykorzystano metodę sondażu diagnostycznego oraz technikę ankiety. Zastosowano celowy dobór respondentów do badań uwzględniając kryterium doboru arbitralnego (status studenta Uniwersytetu Zielonogórskiego). Analiza badań bazuje na danych uzyskanych od 70 respondentów.

Wyniki: Studenci wykazują się negatywnymi postawami wobec osób niepełnosprawnych ruchowo oraz intelektualnie w komponencie poznawczym, natomiast w komponencie afektywnym oraz behawioralnym postawa ankietowanych była zależna od rodzaju niepełnosprawności. Interpretacja wyników badań umożliwiła zaproponowanie rekomendacji dla praktyki akademickiej pod kątem zmiany postaw studentów wobec osób z niepełnosprawnością.
Ocena zmian w postrzeganiu własnej efektywności i nasileniu prokrastynacji w okresie pandemii COVID-19.
Authors: Wojtkowska Anna , Sampolska Julia , Garus Julia , Brzostek Olimpia , Greschütz Kamil
Published: August 2021

Cel badań. Celem badania było sprawdzenie odmienności w postrzeganiu własnej prokrastynacji i efektywności pracy w okresie trwania pandemii w stosunku do czasu sprzed jej wybuchu oraz analiza powiązań między tymi zmianami, a wybranymi czynnikami socjodemograficznymi.
Metoda badań. 186 ochotników (75,8 % kobiet) w wieku od 18 do 62 lat (M = 22,39; SD = 7,84) wzięło udział w badaniu ankietowym on-line. Formularz ankiety zawierał pytania socjodemograficzne, zestaw 20 twierdzeń dotyczących prokrastynacji, o wysokim wskaźniku rzetelności  (alfa Cronbacha = 0,92) i 9 twierdzeń dotyczących efektywności (alfa Cronbacha = 0,87), do których uczestnicy badania ustosunkowywali się na skali od 1 (rzadziej / mniej niż przed wybuchem pandemii) do 7 (częściej/więcej niż przed wybuchem pandemii).
Wyniki badań. Rozkłady nasilenia obu badanych cech były zbliżone do normalnego, większość badanych oceniała swoją prokrastynację i efektywność podobnie jak przed pandemią, a proporcje osób doświadczających wzrostu lub spadku tych cech były wyrównane. Wraz ze wzrostem prokrastynacji silnie spadała efektywność działania (p < 0,001), przy czym płeć, wiek i miejsce zamieszkania nie miały istotnego znaczenia dla żadnej z nich. Wzrost poziomu wykształcenia sprzyjał zarówno niższej prokrastynacji (p < 0,01), jak i wyższej efektywności (p < 0,05). Studenci raportowali większą prokrastynację (p < 0,01), ale podobną efektywność co osoby pracujące.
Wnioski. Badanie pozwoliło na wyciągnięcie wniosku, iż mimo społecznych obaw o spadek jakości pracy i edukacji na skutek reorganizacji warunków życia spowodowanych stanem pandemii, większość pracowników i studentów nie dostrzega zmian w efektywności swojej pracy ani nasileniu prokrastynacji.