bluuebunny/crossref_metadata_2025 huggingface dataset:
Traditional Chinese Medicine Traceability System Based on Sharding Blockchain (Preprint)
Authors: Xiao Fuan , Wang Lai , Chen Yimo , Hong Jiaming , Zhang Honglai , Chen Zhide , Wang Zhengfei
Published: July 2021

UNSTRUCTURED

Abstract: Nowadays, Traditional Chinese medicine (TCM) safety issues have attracted attention from both industry and academia. Counterfeit drugs not only have a serious harmful impact on human health but also cause heavy economic loss to the industry. Establishing a reliable drug traceability system to prevent fake drugs’ safety issues is necessary. Most traditional drug traceability systems are centralized, which leads to data privacy, transparency, and data tampering. Blockchain, a promising technology for decentralization, tamper-resistant and privacy-preserving, provides a basis for the complete traceability of drugs. However, blockchain also has some issues such as high computation overhead, storage overhead, limited scalability, and low transaction throughput. Sharding has emerged as a well approach that can overcome the above issues in blockchain. Sharding is dividing the network into multiple smaller groups, these smaller groups can work in parallel on disjoint transactions. In this paper, we propose a lightweight blockchain architecture based on sharding to solve the above issues in TCM traceability system (LBS-TCM). Our architecture consists of two blockchains, namely: leader shard blockchain and sub shard blockchain. The leader shard blockchain saves all states and processes cross-shard transactions. The sub shard blockchain deals with transactions within shards. LBS-TCM also supports state sharding, transaction sharding, and ledger pruning. Our empirical evaluations suggest that our proposed architecture can process more than 1500 tx/sec in a network of 2048 nodes and 64 shards. The storage overhead of each node decreases linearly.
Classification of Uremic Toxins and Their Role in Kidney Failure
Authors: Rosner Mitchell H. , Reis Thiago , Husain-Syed Faeq , Vanholder Raymond , Hutchison Colin , Stenvinkel Peter , Blankestijn Peter J. , Cozzolino Mario , Juillard Laurent , Kashani Kianoush , Kaushik Manish , Kawanishi Hideki , Massy Ziad , Sirich Tammy Lisa , Zuo Li , Ronco Claudio
Published: July 2021

Advances in our understanding of uremic retention solutes, and improvements in hemodialysis membranes and other techniques designed to remove uremic retention solutes, offer opportunities to readdress the definition and classification of uremic toxins. A consensus conference was held to develop recommendations for an updated definition and classification scheme on the basis of a holistic approach that incorporates physicochemical characteristics and dialytic removal patterns of uremic retention solutes and their linkage to clinical symptoms and outcomes. The major focus is on the removal of uremic retention solutes by hemodialysis. The identification of representative biomarkers for different classes of uremic retention solutes and their correlation to clinical symptoms and outcomes may facilitate personalized and targeted dialysis prescriptions to improve quality of life, morbidity, and mortality. Recommendations for areas of future research were also formulated, aimed at improving understanding of uremic solutes and improving outcomes in patients with CKD.
Indirect treatment comparison of olaparib and talazoparib in germline BRCA-mutated HER2-negative metastatic breast cancer
Authors: McCrea Charles , Hettle Robert , Gulati Poonam , Taneja Ankush , Rajora Preety
Published: July 2021

Aim:
Two poly(ADP-ribose) polymerase (PARP) inhibitors olaparib and talazoparib are approved for patients with germline BRCA-mutated (gBRCAm) HER2-negative metastatic breast cancer.
Methods:
A Bayesian fixed-effects indirect treatment comparison (ITC) analysis was performed to simulate the comparative efficacy (primary outcome of progression-free survival [PFS]) and safety of PARP inhibitor monotherapy.
Results:
ITC of data from the OlympiAD (olaparib) and EMBRACA (talazoparib) studies suggested no significant difference in efficacy (PFS) between olaparib and talazoparib. However, there were differences in specific adverse events; patients receiving olaparib had a higher rate of nausea and vomiting, while those receiving talazoparib had a higher rate of alopecia and anemia.
Discussion:
These data support the benefit of the PARP inhibitor class in gBRCAm HER2-negative metastatic breast cancer.
Cambios en los perfiles laborales en la República Dominicana como resultado de la pandemia
Authors: Villamizar Javier , Barrero Fernando
Published: July 2021

Este estudio permite cuantificar los cambios que se han presentado como resultado de la pandemia con relación al perfil requerido de trabajadores en la República Dominicana. La metodología aplicada fue el análisis de la demanda de personal solicitada por las cinco bolsas o agencias de empleo con mayor número de avisos web de requerimientos de empleados en el país. La mayor parte de puestos vacantes actuales se concentra en técnicos profesionales de nivel medio, reduciéndose la proporción de solicitudes de personal para labores de administración, ventas y servicios. Este comportamiento sugiere que se disminuyeron las vacantes disponibles en los empleos asociados a la cadena de valor del sector turístico y de comercio, los más golpeados por la pandemia. Adicionalmente, la mayor proporción de las empresas continúa solicitando personal en edades de 25 a 45 años y hombres. Por otra parte, en el último año, han exigido mayores habilidades blandas, tales como trabajo en equipo, destrezas en comunicación, enfoque a resultados, responsabilidad y liderazgo, así como el dominio de competencias duras como TICs y del idioma inglés. Lo anterior abre un amplio abanico de oportunidades de desarrollo de programas y ajustes de los modelos educativos, como también la adopción de políticas para incentivar el empleo en los grupos poblacionales más vulnerables.
Comparative analysis of injuries among conscripts of the Russian Navy and Ground Forces in 2003–2019
Authors: Evdokimov V. I. , Mosyagin I. G. , Sivashchenko P. P. , Vetoshkin A. A.
Published: July 2021

The injury rate of servicemen of the Russian Armed Forces (AF) is an important indicator of the safety of professional activity.

Purpose.Main target is a comparative analysis of the injuries of conscripted servicemen of the Russian Navy and Ground Forces in 2003–2019.

Materials and methods.We examined medical reports on the state of health of the personnel and the activities of the medical service in the form 3/MED. The indicators of injuries were correlated with groups (blocks) of the XIX class «Injuries, poisoning and some other consequences of exposure to external causes» (S00–T98) of the International Classification of Diseases, 10th revision (ICD-10). Injury rates were calculated per 1,000 servicemen, or ‰.

Results and discussion. Average annual level of injuries among conscripts of the Russian Navy in 2003–2019. was 23.54±2.75‰, the Ground Forces — 11.23±0.96‰ (p <0.001). Leading injuries were identified, with a share in the structure of 1.5%, in total, which accounted for 74.8% of conscripted servicemen of the Russian Navy, 72.5% of servicemen of the Ground Forces. Accounting for medical and statistical indicators of injuries can be used to analyze injuries in specific units and units of the Russian Armed Forces.
Dante and His Poem as Perceived by Boris Zaitsev
Authors: Toporova Anna V.
Published: July 2021

The present article analyzes the last work written by Boris Zaitsev before emigrating from Russia: the article Dante and His Poem dedicated to Divine Comedy. At first glance, the article may seem to be a collection of sundry thoughts about Dante and his work. At the same time, its deeper meaning comes to the fore when one examines the main points made by the author and incorporates the article into his oeuvre as a whole. In the article, Zaitsev focuses on Dante as a human being (“history of the soul”) and on Divine Comedy as a fruit of his creative genius. Having lost his native country even before emigrating from it, Zaitsev desperately began to search for the “truth” in both life and work. In this quest, the exile and truth-seeker Dante served as Zaitsev’s Virgil in his voyage through unknown and often hostile territories. From this standpoint, Divine Comedy acquired a unique meaning for Zaitsev, who began to treat it as a Gospel of sorts. A comparison of this article with Zaitsev’s next work, the essay Saint Sergius of Radonezh that he wrote in emigration, shows the unified perspective of the writer’s work: the connection between truth and the Truth, between poetic word and the Word- Logos. Dante and Saint Sergius are shown as beacons and waymarks in the “gloomy forest” of life. Their life experience, described in the context of their difficult times, served as a source of strength and solace for Zaitsev and offered models of existential behaviour that helped him to break out from horror and gloom towards light and Truth.
Leo Tolstoy and Andrei Platonov’s Prose of 1941–1945
Authors: Hodel Robert
Published: July 2021

Comparative analysis of A. Platonov’s wartime stories (1941–1945) and Leo Tolstoy’s Sevastopol Stories, War and Peace and Hadji Murat is performed. Items reviewed: 1) Both Red Army fighters in Platonov’s works and soldiers in Tolstoy’s works identify themselves not with an abstract “Fatherland,” but with their local “small motherland.” 2) Both for Tolstoy and Platonov, neither skilful strategy nor overpowering armaments become the war decisive factor but every single soldier’s courage. The battle often develops as an intersection of planned and unforeseen happenings, and everyone bears his own responsibility in it. 3) Platonov’s “truth,” like Tolstoy’s “providence,” is linked to the attacked side and serves as a moral justification of resistance to the aggressor. 4) Platonov, however, like Tolstoy (who speaks as a consistent pacifist in his later works), sees the danger of moral degradation as the result of war, and degradation signs had been notable before the war. Sacrifices (including, in this context, Platonov’s own son) are not in vain only if there is better life after the war.
The Origin of Labour Camp Theme in A.I. Solzhenitsyn’s Works: from Poetry to The Gulag Archipelago
Authors: Glukhova Nadezhda I. , Shchedrina Nellya M.
Published: July 2021

In the present article A.I. Solzhenitsyn’s poetic works and The Gulag Archipelago are analyzed, their proximity and thematic kinship are revealed. The authors appeal to the creative history of these works, remark that poems and parts of the Archipelago are arranged according to a certain pattern. Both in poetry and prose, Solzhenitsyn reveals the path taken by Soviet convicts. Camps for political prisoners and I.V. Stalin’s death take significant place in his works. A.I. Solzhenitsyn is particularly interested in the unity of heroes with nature, communion with it as with an attribute of free people’s life. The writer claims that the camp may become a starting point for spiritual resurrection of a human being. Metaphorization as one of the artistic elements is used for the first time in lyrics to reveal the image of Russia. The authors conclude that the camp theme arose during Solzhenitsyn’s imprisonment and was first expressed in lyrics and the narrative poem Dorozhen’ka. The Gulag Archipelago was formed later not only from the personal experience of the author but also from numerous materials and evidence of eyewitnesses.
Mythopoetics of Lesia Ukrainka’s Forest Song in English Reception and Interpretation
Authors: Prikhodko Viktoriia B.
Published: July 2021

The article deals with English reception and interpretation of mythopoetics in Lesia Ukrainka’s Forest Song. The great difficulty of this work for foreign reception and interpretation due to the large number of mythical and folklore elements, which are important ethnic components of its poetics, is pointed out. The article is based on comparative and typological, structural, descriptive, interpretative methods and the holistic system analysis. It is noted that a significant part of the Forest Song mythology falls on demonology, where each of the demons has features attributed to him by folk beliefs. It is investigated that both translators managed to preserve ethnic specificity of these characters due to different ways of interpretation, although not without certain inaccuracies. It is also noted that an important component of the ethnic poetics of Lesia Ukrainka’s work is magic charm, the successful translation of which demonstrates the true interpretative findings of both translators. Translations of Ukrainian mythology of Lesia Ukrainka’s Forest Song by G. Evans and P. Cundy can be considered successful, as they are marked by the maximum approximation to the original content, spirit and style.
Author’s Transformations of Folklore Images in Yakut Literature
Authors: Poselskaya Viktoriya D. , Efremova Ekaterina M. , Kirillina Maria A.
Published: July 2021

Peculiarities of author’s transformations and interpretations of folklore imagery in the formation of special forms and types of metatext structures in Yakut literature are examined from the point of view of the specifics of genre synthesis: architectonics, figurative-motivational complex, structural-compositional, poetic structure, etc. On the basis of new methodological approaches, literary texts are defined as unique models of genre contamination (meta-genre cyclic formations, montage polycyclic form, “poet’s drama,” etc.). Particular attention is paid to a system-typological study of the issue of meta-genre structures in lyrical and dramatic works. As a result of the research, the author substantiates the position that in the Yakut literature, starting from the middle of the 20th century, a synthetic form of meta-genre structures begins to develop as a qualitatively new phenomenon. It is revealed that the construction of meta-genre forms is based on the formal and meaningful parameters of the imagery of traditional folklore sources, which in the artistic text acquire a new quality depending on the author’s reflection.
Study of Expressionism in the Late 20th — Early 21st Centuries
Authors: Pestova Natalia V.
Published: July 2021

The article analyzes and systematizes results of Russian research in German and Russian Expressionism for the past 17 years. The focus of the author are both great collective research projects on history and theory of Russian and German literature, which includes Expressionism as an integral part of the literary process, and individual studies of literary critics and linguists. The geography of Russian study of Expressionism covers research centers in Universities of Moscow, St. Petersburg, Yekaterinburg, Nizhni Novgorod, Chelyabinsk, Samara and in Austrian libraries (Yekaterinburg, Nizhni Novgorod). The research has four main directions. The first, the most traditional, focuses its forces on the study of new literary material and personalities, unknown literary texts and historical and literary facts. The second direction works with well-known texts, but operates with the latest scientific tools and provides a different understanding of the known material. The third direction is interdisciplinary and uses synthetic methods. The fourth is the comparative and typological direction, an important part of which is translation theory and practice.
About Glory, Crying and Formulas. Review of: Monuments of the Book Epic of West and East, ed. by S.Yu. Neklyudov, N.V. Petrov. Moscow, INFRA-M Publ., 2018. 482 p.
Authors: Staf Irina K.
Published: July 2021

The reviewed collective monograph edited by S. Neklyudov and N. Petrov focuses on issues of the book epic, monuments of ancient and medieval genre in between folklore and literature; the oral tradition in them is refracted and transformed in the process of written fixation. The research of the book epic makes it possible to set and solve problems far beyond the scope of epic studies: the book raises issues related not only to the formation and features of one of the literary genres, but also to the emergence of literature as such, its socio-cultural role in different epochs, the relationship between tradition and individual authorship, the evolution of poetic technique, the ways and circumstances of cycling epic tales. This capital work appears to be a remarkable event in world science.
List of Food Substitutes vs Nutrients Balance: Which one is the future of designing diets in 21st century?
Authors: Moghadam Mohammad Reza Shadmand Foumani
Published: July 2021

One of the first lines in controlling diseases and malnutrition is diet
therapy and currently, due to tool limitations, for designing the
patients’ diet plan, the food groups and the list of food substitutes
are being used while suitable databases of foods composition are
available. Methods of designing individuals’ diet and total of 8791
foods are reviewed to calculate the nutrients of mixed foods and design
a suitable method of diet therapy with more freedom for the patients in
the future. Food groups because of their simplicity are suitable for
public health educations but have limitations that could be better
covered using nutrient balances. The main cause of developing the list
of food substitutes was the limitations in calculating nutrients in a
designed diet that currently could be run using applications. Patients
also by using self-management nutrition applications that based on the
nutrient balancing method shown they are ready to accept this method. A
well-designed application can make using nutrient balancing method which
is the future of diets possible. However, the main limitation is still
the needs for a big, validated, and accurate foods composition database
that needs to be developed.

Keywords : Diet, Food Groups, Nutrients, Diet therapy,
Nutrition
The first 4 years - Outcome of children identified by newborn screening for CF in Germany
Authors: Schuetz Katharina , Kontsendorn Julia , Janzen Nils , Fuge Jan , Grewendorf Simon , Klemann Christian , Happle Christine , Junge Sibylle , Rudolf Isa , Dopfer Christian , Sedlacek Ludwig , Renz Diane , Hansen Gesine , Dittrich Anna Maria
Published: July 2021

Background: Newborn screening (NBS) has been shown to improve CF disease
course and has been widely implemented worldwide. This monocentric study
compared children diagnosed by NBS vs. a cohort preceding the
implementation of NBS in Germany in 2016 to evaluate ascribed benefits
of NBS. Methods: We compared all children with confirmed CF diagnosis
(n=19, “NBS group”) out of all children presenting with positive NBS
at our center after implementation of NBS (n=100) to children diagnosed
with CF at our center within 4 years before NBS implementation (n=29,
“pre-NBS group”) for outcomes of anthropometry, gastrointestinal and
pulmonary disease manifestations and respiratory microbiology. Results:
Children diagnosed by NBS had a lower incidence of initial feeding
problems (15% vs. 41%), had a higher BMI z-score at diagnosis and
higher mean z-scores for BMI, weight and length during the study period.
Children in the pre-NBS group displayed higher proportions of
oxygen-dependent pulmonary exacerbations (10% vs. 0%), a significantly
lower amount of normal bacterial flora (p=0.005) along with a
significantly higher number of throat swab cultures positive for
Pseudomonas aeruginosa (p=0.0154) in the first year of life. Yet,
pulmonary imaging did not reveal less pulmonary morbidity in the NBS
compared to the pre-NBS group. Conclusions: Our results confirm that NBS
for CF leads to earlier diagnosis and improves nutritional outcomes in
early childhood. Although trajectories of structural lung damage at
early age were unaffected by NBS, NBS positive CF patients at preschool
age displayed less severe pulmonary exacerbations and pathological
bacteria in throat swabs.
Model reduction based global optimization for large-scale steady state nonlinear systems
Authors: Tao Min , Petsagkourakis Panagiotis , Li Jie , Theodoropoulos Constantinos
Published: July 2021

Many engineering processes can be accurately modeled using partial
differential equations (PDEs), but high dimensionality and non-convexity
of the resulting systems pose limitations on their efficient
optimization. In this work, a model reduction methodology combining
principal component analysis (PCA) and artificial neural networks (ANNs)
is employed to construct a reduced surrogate model, which is then
utilized by advanced deterministic global optimization algorithms to
compute global optimal solutions with theoretical guarantees. However,
the optimization framework is still time-consuming due to the high
non-convexity of the activation functions inside the reduced ANN
structure. To further enhance the capability of our optimization
framework, two alternative strategies have been proposed. The first one
is a piecewise-affine reformulation while the second one is based on
deep rectifier neural networks with ReLU activation function. The
performances of the two improved frameworks is demonstrated through two
illustrative case studies.
Comparative Evaluation of PI and Fuzzy Logic Controller for PV Grid-Tie Quasi Z-Source Multilevel Inverter
Authors: Umarani Devaraj , Seyezhai Ramalingam , Dhivya Sambasivan
Published: July 2021

This paper portrays a comparative analysis report of Proportional-Integral (PI) and Fuzzy Logic Controller (FLC) for total Power control of Photovoltaic (PV) based grid-tie single-phase five- level Quasi Z-Source Inverter (qZSI). The adopted power control scheme allows for independent maximum power point tracking (MPPT) and independent control of DC link voltage in each H-bridge of the proposed inverter. This analysis is carried out to depict the differences in the performance of both the controllers. It also demonstrates thesuitability of the controllers for the proposed topology. The proposed inverter has the advantages of reductionin size of the impedance network, negligence of boost converter stage and boosting of voltage with the help of 9shoot through states. The power control scheme has been implemented with both PI controller and FLC. Simulation has been carried out using MATLAB software and the results are presented.
Tight Gas Potential Status, Obstacles and the Way Forward in Meeting Future Energy Needs of Pakistan
Authors: Mahesar Aftab Ahmad , Shar Abdul Majeed , Tunio Abdul Haque
Published: July 2021

Production from unconventional tight gas resources plays significant role in energy market. It is commonly held that the tight gas has gained considerable importance in meeting energy needs and is widely developed across the world. It is also worth noting that several countries are engaged in pursuing the tight gas resources development to meet energy challenges. However, the copious concerns have emerged to technical and economic development of tight gas potential. Hence, it is essential to accurately assess the resources and to address the key technical issues and economic feasibilities that will support in mitigating the risk and to increase the investment opportunities. This paper provides a systematic review about current status, field development best strategies; in addition, the paper also addresses the obstacles and issues for development of tight gas potential in Pakistan. Although, the efforts made by the Exploration and Production (E&P) firms operating in Pakistan are not very encouraging for tight gas resources development. Hence; this requires further improvements and accurate assessments to develop tight gas resources effectively. Thus, for accurate assessment of tight gas potential, various imperative approaches, ideas, considerations, several challenges and the best strategies for field development are highlighted that offers significant improvement in materializing the future trends in tight gas potential development. The paper will be a kind of helpful tool for the policy makers, potential investors and industry professionals working in Pakistan’s E&P industry.
Performance Evaluation Methods for Check-Dams in Balochistan: A Review
Authors: Panhwar Vengus , Zaidi Arjumand , Ullah Asmat
Published: July 2021

This study aims to illustrate and present various techniques for evaluating the performance of check-dams and proposes some suitable approaches for impact assessment of dams built in the Balochistan province of Pakistan. These dams were built during the last decade to overcome the challenges of water scarcity and depleting aquifers due to excessive Groundwater (GW) extraction. It was expected that these dams would recharge the GW resources and save the aquifer system from collapsing. Check-dams have traditionally been the permanent source of water within the province. A check-dam is used to delay the floodwater runoff to make it available for domestic and agriculture purposes or to recharge GW. The water along these dams permeates into the ground to keep the aquifer genuinely stable throughout the year. The data were collected based on studies of published research papers and reports of international organizations containing key characteristics of performance evaluation techniques. This review will help to evaluate procedures, policy, and governance interventions in Balochistan by comparing them with the adopted practices in other regions of the world and its impact on the well-being of the society. In this paper, the performance evaluation of check-dams for specific cases is presented. The knowledge acquired will be utilized to highlight state-of-the-art practices and to identify the need for further research in this field.
Analysis of joule heating and generalized slip flow in ferromagnetic nanoparticles in a curved channel using Cattaneo-Christov heat flux theory
Authors: Abbas Zaheer , Hussain Sifat , Naveed Muhammad , Nadeem Amir , Ali Amjad
Published: July 2021

This paper investigates the heat transport phenomenon by utilizing Cattaneo- Christov heat flux model on magnetic nanoparticles through a semi porous curved wall channel, incorporated with generalized slip condition and bent in a circle of radius, Rc. In addition, the energy equations takes into account the impacts of heat generation and Joule heating. To construct the flow model, a curvilinear co-ordinate scheme is used. The derived PDE are converted into system of ODE by incorporating appropriate similarity variables. Numerical simulation is used to achieve a numerical solution of the flow equations by using shooting technique. The influence of various parameters on temperature, rate of heat transfer, velocity and surface drag force are analyze and discussed in detail by using graphs and table. Also a well-known finite difference technique known as Keller box method is also used to verify and validate the obtained numerical results.
Comparison of mathematical models to estimate the thermal conductivity of TiO2-water based nanofluid: A review
Authors: Dandoutiya Bhrant , Kumar Arvind
Published: July 2021

Heat transfer is a desirable phenomenon in many industries such as in refrigeration, transportation, power generation, cell preservation, incubator, metallurgy and material processing, health services, etc. Different types of fluids like water, oil, ethylene glycol etc. are being used as a heat transfer medium. Water is a commonly used as working fluid for transfer of heat. Nanofluids are developed by adding nanosized particle(s) in existing fluid to improve the heat transfer rate. Thermal conductivity of the nanofluid is an important parameter in estimation of heat transfer rate. Different types of mathematical models were developed by various investigators to predict the thermal conductivity of the nanofluids. In this review paper, the theoretical and mathematical model(s) have been compared to predict the thermal conductivity of nanofluids. The experimental data have been collected from literature and compared with Maxwell model, Hamilton and Crosser model, Maxwell-Garnetts model, Pak Cho model, Timofeeva et al. model, Li and Peterson model, Bhattacharya et al. model, respectively in detail. It has been observed that the prediction with the help of the mathematical models is good when the value of volume fraction was less than 0.01.
Variation in time of the perception of local discomfort parameters
Authors: Andras-Tovissi Balazs , Kajtar Laszlo , Nyers Jozsef
Published: July 2021

The aim of the present research was to investigate the temporal change of the actual mean votes of subjects exposed to the joint effect of warm ceilings and draught. The paper investigates whether the value of actual mean votes remains constant or it changes over time under a constant thermal environment? To answer this question, we performed human subject studies involving 10 men and 10 women. The results were analyzed in function of time. The most important result is that, throughout the 180 minutes studies, in the 5-15?C radiant temperature asymmetry interval between warm ceiling and floor, with a DR = 15% and DR = 25%, draught rate, the actual mean votes value was not constant but showed a decreasing trend. Furthermore, there was a significant discrepany among the votes of females and males.
Repülőgépek elektromos meghajtása – szükségszerűség kompromisszumokkal : IV. rész
Authors: Óvári Gyula , Fehér Krisztina
Published: July 2021

A folyamatosan csökkenő mennyiségű hagyományos, fosszilis eredetű energiahordozók környezetkímélő kiváltására a légi közlekedésben jelenleg döntően az elektromos meghajtású repülőeszközök jöhetnek számításba. A tanulmány korábbi részeiben a szerzők áttekintették repülőeszközök működtetéséhez alkalmazott energiahordozók fajtáit, a környezetszennyezés csökkentése érdekében szóba jöhető alternatív energiaforrások kiválasztásának szempontjait, majd a repülés környezeti hatásait. Felvetették a dinamikusan növekvő légi forgalom és a környezetvédelemi szabályozás ellentmondásait, elemezték az alternatívenergia-bevezetés kényszerű lassulásának okait, valamint aggályokat fogalmaztak meg a 2050-ig tartó fejlődés lehetőségeiről. A tanulmány bemutatta a katonai repülés és a környezetszennyezés arányait, majd a nemzetközi társadalmi, politikai, katonai válságok, illetve a koronavírus-járvány hatásait vizsgálta a repülőiparra és a légi közlekedésre. Ezt követően önálló rész foglalkozott az elektromos meghajtású repülőeszközök gyors bevezetésének kényszerhelyzetével, valamint az azzal járó kompromisszumokkal. A sorozat IV. része előbb az akkumulátoros energiatárolás, majd a villamos meghajtás legfőbb nehézségeit mutatja be. A szerzők az UAV-k különböző típusain az adott eszközök előnyeit és hátrányait emelik ki. Ezt követően az érdeklődők a napelemes légi utántöltéssel, az új típusú akkumulátorokkal, valamint az üzemanyagcellák alkalmazásának egyes változataival ismerkedhetnek meg.
Função exponencial e GeoGebra: o que vem sendo discutido na literatura brasileira?
Authors: Ferreira Rodrigo Dos Santos , Costa André Pereira da
Published: July 2021

Esta pesquisa é parte de uma dissertação de mestrado e o objetivo é investigar como o ensino de função exponencial vinculado ao uso do GeoGebra vem sendo discutido em artigos publicados nos últimos 10 anos (2010-2019) em periódicos brasileiros da área de Ensino, cujo escopo contenha o ensino de matemática e/ou de ciências. Este é um trabalho qualitativo bibliográfico descritivo. Foi constatado que o ensino de função exponencial tem sido potencializado, muito por conta de suas aplicações em contexto de realidade (como na biologia e na matemática financeira) que, associadas ao GeoGebra, otimizam a aula de matemática, concedendo-a um caráter experimental que estimula a autonomia dos estudantes, aos lhes permitir construir os conceitos por meio de suas múltiplas representações, a partir da supervisão do professor que, além de mediador, precisa incorporar e ter domínio sobre o uso das Tecnologias de Informação Comunicação em sala de aula.
Steady-State and Dynamic Simulation Study of Reactive Distillation for FFA Esterification in Biodiesel Synthesis
Authors: Kusumaningtyas Ratna Dewi , Prasetiawan Haniif , Nugroho Daniel Setiyo , Wulandari Ajeng Riswanti , Istadi Istadi , Hisyam Anwaruddin
Published: July 2021

Reactive distillation (RD) holds promise for process intensification in biodiesel production since it integrates reaction and separation. It simplifies the process and enhances the conversion of the equilibrium limited reactions. To ensure the stability in RD operation, sensitivity study and process control simulation are necessary. In this work, RD was employed for free fatty acid (FFA) esterification of mixed non edible oils in biodiesel synthesis. Non edible oils used were waste cooking oil, crude jatropha oil, and crude nyamplung oil (Calophyllum inophyllum L). Simulation was conducted using ASPEN Plus V8.8. Sensitivity study was carried out to determine the effects of the operating condition alteration. A dynamic simulation was performed as a Proportional-Integral-Derivative (PID) controller tuning. It was revealed that the highest FFA conversion was 85%, achieved at the feed stage of 7, distillate rate of 0.22 kmol/hr, and oil to methanol molar ratio of 1:5. Level, pressure and temperature controls were installed in RD. Then, a dynamic simulation was applied as a PID controller tuning. Three different controller tuning methods, viz. Ziegler-Nichols, Cohen-Coon, and Internal Model Control, were studied. The best PID parameter was obtained by using Cohen-Coon method which provided fastest rise time, lowest settling time and lowest overshoot.
The Phenomenon Of Emiliania Huxleyi In Aspects Of Global Climate And The Ecology Of The World Ocean
Authors: Pozdnyakov Dmitry V. , Gnatiuk Natalia V. , Davy Richard , Bobylev Leonid P.
Published: July 2021

Emiliania huxleyi (Lohmann) evolved from the genus Gephyrocapsa Kamptner (Prymneosiophyceae) of the coccolithophore family Naёlaerhadaceae. Over the past 100 thousand years E. huxleyi has acquired the status of the most ecologically predominant coccolithophore due to its remarkable adaptability to a variety of environmental conditions and interspecific competitiveness. E. huxleyi plays an important role in both the marine carbon system and carbon cycling between the atmosphere and ocean due to its ability to produce organic and inorganic carbon as well as to form massive blooms throughout the world ocean. This study examines both older information and recent findings to shed light on the current tendencies in the two-way interactions between E. huxleyi blooms and the immediate and global environment under conditions of climate change. The assembled knowledge has emerged from laboratory and mesocosm instrumental investigations, retrievals of satellite remote sensing data, machine learning/statistical analyses, and numerical simulations. Special attention is given to both the quantitative data reported over the last two decades on such interactions, and the only very recently appearing mid-term projections of E. huxleyi bloom dynamics across the world ocean. These blooms strongly affect the atmosphere and ocean carbon cycles. They reduce CO2 fluxes from by ~50% to ~150% as is documented for the North Atlantic, and on the global scale release particulate inorganic carbon as calcium calcite in the amounts assessed at 0.4 to 4.8 PgC/yr. At the same time, they are also sensitive to the atmospheric and oceanic state. This results in E. huxleyi blooms having an increased impact on the environment in response to ongoing global warming.
Lo que es y lo que viene siendo. Distribución discursiva de una marca focalizadora.
Authors: Pérez Álvarez Bernardo E.
Published: July 2021

Este artículo describe un uso particular de marcación de foco en español, construido con el relativo lo que y el verbo ser en dos variantes: lo que es y lo que viene siendo. Con el análisis de 106 ejemplos obtenidos del Corpus michoacano del español, se explica cómo esta construcción, derivada de las perífrasis de relativo, se convierte en un focalizador dentro de una estructura monoclausal. Su uso se encontró fundamentalmente en situaciones de comunicación dialógica oral en el ámbito público, con un grado de formalidad intermedio; no así en situaciones completamente coloquiales ni en situaciones de alta formalidad.
Psychological and social analysis of collective trauma: the enduring lessons learned 20 years after the September 11th, terrorist attacks
Authors: Marques Barbosa Nasciutti Fabiana , Rahbari-Jawoko Mojgan
Published: July 2021

Acontecimentos que apresentam uma consequência fatal sobre os civis têm, historicamente, um efeito duradourona psique daqueles que os testemunharam. Os ataques terroristas politizados de 11 de setembro de 2001 nos Estados Unidos foram o evento histórico mais significativo do século 21, com grande repercussão global. Iniciadas por esses incidentes, as ameaças contínuas de terrorismo desde então transformaram as atitudes públicas em dimensão social e política, além de terem impactado a maneira como as pessoas se relacionam tanto dentro dos Estados Unidos quanto globalmente. Este artigo examina criticamente as lições duradouras aprendidas 20 anos após o trágico evento. Para tanto, são discutidos: (i) a resposta psicológica global ao 11 de setembro a partir de uma perspectiva histórico-cultural; (ii) os impactos sociais e sociopolíticos mais amplos; (iii) a interação entre a política de identidade, as preocupações e os riscos de segurança nacional, o preconceito, a exclusão e a intolerância religiosa que os eventos incentivaram nos Estados Unidos e no mundo. Além disso, analisa-se como a mídia social, as informações rápidas e as notícias falsas influenciaram o pensamento crítico em todo o mundo. O artigo explora, particularmente, como o 11 de setembro pode potencialmente afetar a propensão individual ao fundamentalismo religioso, ao preconceito e à intolerância com aqueles que não são familiares.
Gestión y diseño industrial
Authors: Gutiérrez Ruiz Francisco Javier , Frías Peña Julio
Published: July 2021

En el caso de los nuevos productos y servicios, algunas de las organizaciones que participan en el proceso se muestran como actores decisivos para el diseño industrial, principalmente porque reconocen en el cambio un recurso esencial del desarrollo, pero además, porque tienen el poder y la capacidad para inducirlo y concretarlo socialmente. Es en este sentido que crece el reconocimiento al diseñador, ante una necesidad primordial local: generar iniciativas de cambio originales y viables, sobre la convergencia de intereses de los actores sociales. De forma que, los proyectos de diseño industrial que se conciben desde su origen sobre este principio, muestran actualmente mejores posibilidades de concretarse como nuevos productos o servicios en el mercado. En este sentido se puede decir que la gestión de diseño es la actividad que se practica a través de un proceso, tanto al interior como al exterior de la organización, cuyas funciones básicas son, por un lado, la conducción integral de los procesos y de los actores que posibilitan las acciones de innovación y creación de valor con diseño y, por el otro, la administración de recursos que hace posible la concreción de actividades operativas del grupo de diseño con los demás departamentos de la empresa. Es decir, es una acción de vinculación, en ambos sentidos, entre el diseño industrial y su medio, para posibilitar iniciativas de cambio de productos y servicios en la empresa.
Preceptoria de enfermagem: uso de metodologias ativas durante estágio supervisionado
Authors: Nascimento Celeste Lorena Esmeralda , Dourado Joana
Published: July 2021

Analisar o conhecimento dos preceptores na utilização de metodologias ativas durante estágio supervisionado. Estudo descritivo com abordagem quantitativa. A pesquisa foi realizada através de questionário contendo questões sociodemográficas e objetivas sobre o tema. Participaram preceptores do curso de graduação em enfermagem de uma universidade particular. A amostra do estudo foi composta por 10 preceptores, todos do sexo feminino. 9 preceptores possuem especialização em áreas distintas e 1 possui título de mestre. Apenas 5 preceptores foram capacitados para atuar na preceptoria. Todos utilizam metodologias ativas no campo de estágio e apenas 6 receberam treinamento. Evidenciou-se que o enfermeiro preceptor tem um papel importante na formação de futuros profissionais, encarando o discente como protagonista do aprendizado. O uso das metodologias ativas nos estágios é relevante, pois envolve os desafios existentes na profissão, desde os estruturais até os pedagógicos.
Música e parto: uma terapia para o alívio da dor
Authors: Bernardino Lorencetto Stefani , Correia Lemes Stephany , Breviglieri Bertella Camila , Massari Tuci Bianca , Silva Maia Janize
Published: July 2021

A dor proveniente do trabalho de parto no Brasil é sinônimo de sofrimento, comumente associada ao medo entre as gestantes. Descrever os benefícios proporcionados pela musicoterapia para alívio da dor do parto. Realizou-se uma revisão integrativa da literatura nas bases de dados PUBMED, BVS, BDENF, nos idiomas português e inglês, publicados no período de 2000 a 2020. Foram encontrados 3.590 artigos, mas após a análise dos resultados, e por meio dos critérios de exclusão, foram selecionados 27 artigos. As principais evidências observadas foram que a musicoterapia pode proporcionar à parturiente diminuição do medo, da ansiedade, relaxamento, distração da dor, dentre outros benefícios. A musicoterapia é um método não farmacológico, não invasivo, simples, de baixo custo, eficiente, seguro e que não possui efeitos colaterais e pode ser utilizado para o alívio da dor do parto.
Ocorrência de flebite em pacientes hospitalizados com doenças onco-hematológicas
Authors: Araujo Viana Aurilio Sergio , Ferreira de Freitas Thiago , Espírito Santo Fátima Helena do , Ferreira Santos Fernanda , Souza Ribeiro Maria de Nazaré de , Xavier Diniz Cleisiane
Published: July 2021

Analisar a ocorrência de flebites em pacientes hospitalizados com doenças onco-hematológicas e identificar os possíveis fatores relacionados. Estudo descritivo de abordagem quantitativa, com 20 pacientes da enfermariaonco-hematologiade um hospital no município de Niterói, Rio de Janeiro. Participaram 11 homens e 9 mulheres, idade entre 60 e 79 anos, 90% com alguma alteração hematológica. O cateter mais utilizado foi o de nº 22, fixado com filme estéril transparente (89,5%); das 38 punções, 34 foram realizadas por enfermeiros, sendo que 4 delas apresentaram alguma alteração sugestiva de flebite. Após 7 dias, apenas um local de punção apresentou flebite. Atuação da enfermagem condizente com uma prática segura de cateterismo venoso, observando a escolha correta do cateter, local a ser puncionado, tipo e forma defixação do dispositivo, medicamentos em uso, doença de base e tempo de permanência do cateter intravenoso, permite a prevenção de flebite.
A liderança como competência essencial na formação do enfermeiro
Authors: Cardoso Moreira Amanda , Brandão Sousa Ana Beatriz , Furlanis Davi Pereira , Salviano Lucileide Gabriela , Martins Porfirio Regiane Baptista
Published: July 2021

Relatar sobre a liderança como uma competência importante para os enfermeiros. Trata-se de revisão integrativa de literatura com busca de artigos nas bases de dados SciELO, bibliotecas virtuais e websites. Foram critérios de inclusão artigos publicados na íntegra, em português e publicados a partir de 2010 a 2020. Foram utilizadas 22 referências, sendo 19 artigos científicos e três sites. Considerou-se como tópicos: Autoria; Ano de publicação; Periódico; Título do estudo; Objetivo do estudo. Os principais achados foram categorizados em: Formação acadêmica como influência no processo de liderança, características de liderança essenciais na formação do enfermeiro e a liderança do enfermeiro. A liderança é uma competência essencial para o enfermeiro. Sendo assim, é fundamental a abordagem teórico-prática na trajetória acadêmica do enfermeiro.
Higienização das mãos em uma unidade de terapia intensiva neonatal
Authors: Santos Silva Chiara Silmara , Aguiar Pereira Alexandre , Tavares Parente Andressa , Merca Silva Akyson Zidane , Margotti Edficher , Barros Branco João Eduardo
Published: July 2021

Identificar, por meio da observação, a prática de higienização das mãos durante as ações cuidativas realizadas pela equipe de saúde ao recém-nascido pré-termo em UTI neonatal, traçando o perfil dos profissionais, registrando as práticas de higienização das mãos e avaliando a adesão ao uso do álcool gel e adorno zero. Trata-se de pesquisa de campo observacional, descritiva e exploratória, de natureza quantitativa. Amostra: 62 profissionais da saúde: enfermeiros, técnicos de enfermagem, médicos e fisioterapeutas. Realizadas 358 observações nos turnos: manhã, tarde e noite. Cerca de 64,52% dos profissionais tinham de 1 a 10 anos de atuação em Unidade de Terapia Intensiva Neonatal. Registrou-se que 88% realizaram higienização das mãos antes e depois à manipulação, com 93,85% de adesão ao adorno zero. Prima-se pela realização de educação permanente, reforçando a relação do processo de cuidado no cenário neonatal e seus impactos no prognóstico de saúde do RN.
Cultura de segurança do paciente em uma unidade hospitalar de hemodiálise
Authors: Silva Roberta Santos Correia , Comassetto Isabel , Alves Wanda Tenório Barros Passos , Araujo Amauri dos  Santos , Barboza Jéssica Soares dos Anjos , Melo Natália Colatino Veiga
Published: July 2021

Analisar a cultura de segurança do paciente dos profissionais no serviço de hemodiálise. Estudo quantitativo, descritivo-exploratório, realizado em um hospital de ensino em 2019. Dados coletados através do questionário Hospital Survey on Patient Safety Culture (HSOPSC) para 32 profissionais, disponibilizado por email e impresso. Os resultados apontaram melhores avaliações nas dimensões: Trabalho em equipe e Aprendizagem organizacional e melhoria contínua. Os aspectos com piores avaliações foram: Transferências internas e passagem de plantão e Percepção geral da segurança do paciente. Com relação à avaliação do grau de segurança do paciente 9,4% considera excelente, 56,2% muito boa e 34,4% regular. A realização de notificações de eventos adversos não está presente no cotidiano dos profissionais desta unidade. Este estudo mostrou uma cultura de segurança com potencial de melhorias em quase todas as dimensões, configurando-se assim um desafio para o gerenciamento de riscos, com vistas a um desenvolvimento da segurança do paciente neste serviço.
A DESINFORMAÇÃO E SUA RELAÇÃO COM A VIOLÊNCIA OBSTÉTRICA: UMA REVISÃO INTEGRATIVA
Authors: Souza Gibson , Silva Queiroz Jessica , Rocha Costa Laísa Matos da , Carvalho Santana Solange de , Silva Maia Janize
Published: July 2021

Esta pesquisa teve por objetivo evidenciar como a desinformação corrobora com o acontecimento da violência obstétrica. Revisão integrativa que analisou 18 artigos na base de dados da Biblioteca Virtual em Saúde e Google scholar e foram utilizados como critérios de seleção: artigos publicados nos últimos 5 anos, disponíveis na íntegra e nos idiomas: Português, Inglês e Espanhol. Foram excluídos estudos de revisão integrativa e os artigos sem concordância objetiva e direta com o tema. A falta de conhecimento, a falta de humanização na assistência ao parto e a falha no acolhimento à gestante são as principais contribuintes para que a violência obstétrica ocorra. É necessário que a mulher seja instruída sobre seus direitos como gestante, parturiente e puérpera para que se torne sujeito ativo no que diz respeito ao período perinatal.
Komplex iskolai egészségnevelő program a COM-B modell tükrében
Authors: Eörsi Dániel , Herczeg Vivien , Árva Dorottya , Terebessy András
Published: July 2021

Összefoglaló: A biztonságos egészség-magatartásra való nevelés szempontjából a serdülőkor kiemelten fontos időszak. Jelen tanulmányban egy komplex, pedagógiai, ifjúságpszichológiai és orvos-szakmai szempontok mentén fejlesztett, kortársoktatáson alapuló iskolai egészségnevelő-programot mutatunk be a COM-B modell tükrében. A COM-B modell szerint a viselkedést (behaviour – B) befolyásoló tényezőket alapvetően három csoportba lehet rendezni, ezek a képesség (capability – C), a lehetőség (opportunity – O), és a motiváció (motivation – M). Programunk, a Balassagyarmati Egészségnevelő Program kiemelt hangsúlyt fektet a célcsoport tagjainak tudás-bővítésére (C), a pozitív egészségmagatartást előmozdító környezet megteremtésére (O) és jutalmazáson, valamint személyes interakciókon keresztül a motiváció mélyítésére (M).