bluuebunny/crossref_metadata_2025 huggingface dataset:
Copper telluride thin films for gas sensing applications
Authors:   Department of Physics, College of Education for Pure Science (Ibn-Alhaitham), University of Baghdad -Iraq, Salman S. H. , Hassan N. A. ,   Department of Physics, College of Education for Pure Science (Ibn-Alhaitham), University of Baghdad -Iraq, Ahmed G. S. ,   Department of Physics, College of Education for Pure Science (Ibn-Alhaitham), University of Baghdad -Iraq
Published: March 2022

Copper Telluride Thin films of thickness 700nm and 900nm, prepared thin films using thermal evaporation on cleaned Si substrates kept at 300K under the vacuum about (4x10-5 ) mbar. The XRD analysis and (AFM) measurements use to study structure properties. The sensitivity (S) of the fabricated sensors to NO2 and H2 was measured at room temperature. The experimental relationship between S and thickness of the sensitive film was investigated, and higher S values were recorded for thicker sensors. Results showed that the best sensitivity was attributed to the Cu2Te film of 900 nm thickness at the H2 gas.
Does Fiscal Decentralization Increase the Economic Growth in Sulawesi Island?
Authors: Azizah Nur , Kusuma Hendra , Arifin Zainal
Published: March 2022

Fiscal decentralization in Indonesia has been carried out since the issuance of Law No. 22/1999 which requires the central government to hand over financial management authority to local governments. Fiscal decentralization can create efficiency and effectiveness to encourage economic growth. However, there are still problems, namely whether the delegation of authority can contribute to regional economic growth. This study was conducted to determine the effect or impact of fiscal decentralization on the economic growth of six provinces on the island of Sulawesi. The central government assists the regions through fund transfer schemes such as GAF, SAF, and RSF. This study uses data from six provinces on Sulawesi Island between 2005-2019 and looks at the amount of fiscal decentralization used, namely the ability of regional transfers to create economic growth (AII) and the ability of local revenues to contribute to economic growth (AIII). The results of the analysis show that the indicator of the ability of transfer funds to the formation of regional original income has a positive and significant relationship. This means that, judging from the ability of the regions to contribute to economic growth, they are still unable to increase economic growth without the help of the central government.
Menopause-associated risk of cardiovascular disease
Authors: Anagnostis Panagiotis , Lambrinoudaki Irene , Stevenson John C , Goulis Dimitrios G
Published: March 2022

Cardiovascular disease (CVD) is of major concern in women entering menopause. The changing hormonal milieu predisposes them to increased CVD risk, due to a constellation of risk factors, such as visceral obesity, atherogenic dyslipidemia, dysregulation in glucose homeostasis, non-alcoholic fatty liver disease and arterial hypertension. However, an independent association of menopause per se with increased risk of CVD events has only been proven for early menopause (<45 years). Menopausal hormone therapy (MHT) ameliorates most of the CVD risk factors mentioned above. Transdermal estrogens are the preferable regimen, since they do not increase triglyceride concentrations and they are not associated with increased risk of venous thromboembolic events (VTE). Although administration of MHT should be considered on an individual basis, MHT may reduce CVD morbidity and mortality, if commenced during the early postmenopausal period (<60 years or within ten years since the last menstrual period). In women with premature ovarian insufficiency (POI), MHT should be administered at least until the average age of menopause (50–52 years). MHT is contraindicated in women with a history of VTE and is not currently recommended for the sole purpose of CVD prevention. The risk of breast cancer associated with MHT is generally low and is mainly conferred by the progestogen. Micronized progesterone and dydrogesterone are associated with lower risk compared to other progestogens.
Energy, Exergy and Exergo-Economic Analysis of an OTEC Power Plant Utilizing Kalina Cycle
Authors: Basta Giuseppe , Meloni Nicoletta , Poli Francesco , Talluri Lorenzo , Manfrida Giampaolo
Published: March 2022

This study aims to analyse an Ocean Thermal Energy Conversion (OTEC) system through the use of a Kalina Cycle (KC), having a water-ammonia mixture as a working fluid. KC represents a technology capable of exploiting the thermal gap of ocean water. This system was then compared with OTEC systems, which exploit ammonia, R134A and butane-pentane mixture as working fluid. The comparison was carried on through energy analysis, exergetic analysis, and exergo-economic analysis using the EES (Engineering Equation Solver) software. For each case study, cost rates and auxiliary equations were evaluated for all components and the mass flow rate and unit exergy cost for each stream. The results showed that the KC with water-ammonia as working fluid achieves the best exergo-economic performance among the examined cycles. The cost of electricity produced through KC using water - ammonia mixture was found to be 26,66 c€/kWh. The thermal efficiency and the exergetic efficiency were calculated and the withdrawal depth of ocean water was considered. The efficiencies resulted to be 3.68% for the thermal efficiency and 95.96% for the exergetic efficiency.
K. Barsht's Works on Dostoevsky: Imitation of Research
Authors: Tarasova Natalia , Kibalnik Sergey , Tikhomirov Boris , Zakharov Vladimir
Published: March 2022

In the article, Konstantin A. Barsht’s publications devoted to the study of Fyodor Dostoevsky’s creativity are subjected to a critical analysis: 1) works on the drawings and calligraphy of the writer; 2) a commented edition of Dostoevsky’s novel “Poor Folk” for “Literary Monuments” series; 3) publications about the manuscripts of the novel “Demons”, including the publication of Dostoevsky’s workbooks with draft notes for this novel (2021); 4) Barsht’s articles from the collection “Dostoevsky: Еtymology of Narration” (2019). The analysis of these publications reveals Barsht’s unprofessionalism as a researcher, as well as his violation of scientific ethics. The authors of the article proceed from the idea that this kind of imitation of research is unacceptable, publications should undergo a qualified examination and receive expert evaluation.
MEFV Mutations in IBD Patients: A Systematic Review and Meta- analysis
Authors: Papadopoulos Vasileios P , Antoniadou Christina , Ritis Konstantinos , Skendros Panagiotis
Published: March 2022

Background and Aims: Several studies have suggested that mutations in MEFV, the gene responsible for familial Mediterranean fever (FMF), are frequently detected in inflammatory bowel disease (IBD) patients. We aimed to provide further evidence regarding a potential correlation between MEFV gene mutations and IBD by identifying all relevant studies and analyzing their results.

Methods: EMBASE, PubMed/MEDLINE, and Google Scholar were used to identify all studies that published until January 2021 and reported MEFV mutation patterns in patients with ulcerative colitis (UC), Crohn’s disease (CD) and indeterminate colitis (IC) with or without a control group. The Newcastle-Ottawa quality assessment scale was used to appraise the quality of the included studies.

Results: Thirteen observational studies, including 937 patients and 977 controls, were analyzed. MEFV mutation rate in IBD patients was 0.238 (95%CI: 0.209-0.270; I 2 =95%); MEFV mutated alleles were more frequent in IBD patients when compared with controls (p=0.03 for UC, p=0.01 for CD and IC). Subgroup analysis indicated that MEFV mutations were increased in patients with IC when compared with UC and CD (I 2 =91%, p<0.001). Patients with extra-intestinal manifestations and pancolitis had 2.57 (95%CI 1.07-6.14; p=0.03) and 2.02 (95%CI: 1.01-4.04, P=0.049) odds ratios to carry MEFV mutant genotypes, respectively. Exon 10 mutations had the most serious impact. No source of heterogeneity was detected.

Conclusions: MEFV mutations are common in IBD and are linked with the presence of extra-intestinal manifestations and pancolitis. Further research to assess the clinical significance and evolutionary significance of MEFV mutations in IBD patients is warranted.
Tactile Stimulation in Newborn Infants With Inadequate Respiration at Birth: A Systematic Review
Authors: Guinsburg Ruth , de Almeida Maria Fernanda B. , Finan Emer , Perlman Jeffrey M. , Wyllie Jonathan , Liley Helen G. , Wyckoff Myra H. , Isayama Tetsuya
Published: March 2022

CONTEXT

For many years the International Liaison Committee on Resuscitation has recommended the use of tactile stimulation for initial management of infants born with inadequate respiratory effort at birth without systematically examining its effectiveness.

OBJECTIVE

Systematic review to compare the effectiveness of tactile stimulation with routine handling in newly born term and preterm infants.

DATA SOURCES

Medline, Embase, Cochrane CENTRAL, along with clinical trial registries.

STUDY SELECTION

Randomized and non-randomized studies were included based on predetermined criteria.

DATA EXTRACTION

Data were extracted independently by authors. Risk of Bias in Nonrandomized Studies of Interventions (ROBINS-I) was used to assess risk of bias in non-randomized studies. Grading of Recommendations, Assessment, Development and Evaluations (GRADE) was used to assess the certainty of evidence.

RESULTS

Among 2455 unique articles identified, 2 observational studies were eligible and qualitatively summarized. Because one of the studies was at critical risk of bias, only the other study including 243 preterm infants on continuous positive airway pressure with clinical indications for tactile stimulation was analyzed. It showed a reduction in tracheal intubation in infants receiving tactile stimulation compared with no tactile stimulation (12 of 164 vs 14 of 79, risk ratio of 0.41 [95% confidence interval 0.20 to 0.85]); however, the certainty of evidence was very low.

LIMITATIONS

The available data were limited and only from observational studies.

CONCLUSIONS

A potential benefit of tactile stimulation was identified but was limited by the very low certainty of evidence. More research is suggested to evaluate the effectiveness as well as the optimal type and duration of tactile stimulation.
Recursos naturales, empresas multinacionales y proyectos nacionales: Las multinacionales como el “otro necesario” en la América Latina (1900-1954)
Authors: Conejo Barboza Luis
Published: March 2022

El presente artículo busca estudiar el conflicto que originó la representación de la naturaleza ejercida entre las empresas multinacionales estadounidenses y el nacionalismo de los países latinoamericanos desarrollado entre los años 1900 – 1954.  La mayoría de estudios existentes acerca del nacionalismo, se enfocan en analizar los aspectos políticos y de educación en la formación del discurso nacionalista, de forma similar, los estudios de la representación de la naturaleza por parte de los estados nacionales, se han centrado en el enfoque y categoría de conflictos ambientales.  Lo que propone el presente trabajo, es estudiar cómo la representación de la naturaleza pudo generar ciertos conflictos entre los intereses nacionales y los intereses de algunas empresas multinacionales, dejando claro que la relación entre estos actores era sumamente dinámica.
Internet: manipulación mediática y nuevos mitos en la sociedad occidental posmoderna
Authors: Brenes-Sánchez Jeff , González-Arias Ingrid Indira
Published: March 2022

Este artículo explora el rol de los medios de comunicación en la transformación de los mitos y la construcción de realidades alternativas en el contexto de la sociedad occidental posmoderna. Para esto, se implementan las herramientas teóricas del análisis crítico con el fin de explicar la función de los mitos en la actualidad y cómo a partir de estos discursos míticos se manipula la realidad. Se parte de un mito posmoderno y vigente como medio para demostrar que los mitos nunca han desaparecido, este es, la idea de que ciencia y razón son las únicas formas válidas para explicar la realidad, pero este discurso oculta el hecho de que los medios tecnológicos de comunicación se han convertido en modernos espacios para la creación de nuevos héroes y realidades sociales distorsionadas. Al final, se concluye que la sociedad occidental posmoderna suplanta los mitos antiguos por otros modelos paradigmáticos que surgen a partir de la creación de estas realidades manipuladas y cómo los sujetos sociales (individuales o colectivos) asumen un lugar activo en la aparición de estos nuevos paradigmas cuyo valor, a diferencia de la época antigua, no está en la conducta que representan sino en las ganancias que pueden generar.
Serum protein electrophoretogram profile detected in apparently healthy cats infected with Leishmania infantum – Short communication
Authors: Villanueva-Saz Sergio , Giner Jacobo , Fernández Antonio , Alcover María Magdalena , Riera Cristina , Fisa Roser , Yzuel Andrés , González Ana , Marteles Diana , Verde Maite
Published: March 2022

The information about the clinical features of Leishmania infantum infection in cats is scarce. In this study, we evaluated the serum protein electrophoresis of samples from 19 infected but apparently healthy cats. To detect L. infantum infection, two serological tests, i.e. western blot (WB) and enzyme-linked immunosorbent assay (ELISA) as well as quantitative polymerase chain reaction (qPCR) on the blood samples were performed. Eventual infection by several selected bacterial and viral pathogens was also tested. All but one of the cats were found positive with WB. The WB-negative cat was positive by ELISA only. From the 18 WB-positive cats, only three were positive also by ELISA and eight with qPCR, including the only animal which was positive in all the three tests. No concomitant infections were detected in any of the cats. The main alteration of the proteinogram was characterised by an increase of the α-2 fraction. In the five cats with hypergammaglobulinaemia, the pattern detected was polyclonal. None of the cats were seropositive to any other pathogens tested. The presence of polyclonal gammopathy and elevation of the α-2 fraction could suggest the presence of active infection. In contrast, the only detection of an increase of the α-2 fraction alone with the presence of positive serological result could be associated by immune response activation against L. infantum.
Verbal communication abilities checklist as an instrument to assess Brazilian children's pragmatic profile
Authors: Abe Ingraci Camila Mayumi , Lopes-Herrera Simone Aparecida
Published: March 2022

Objective: The aim of this research was to develop a checklist to assess the pragmatic profile of Brazilian children aged 3–8 years. Methods: The Verbal Communication Abilities (VCA) checklist was adapted from the Protocol for Verbal Communicative Abilities (Lopes, 2000). In order to evaluate the checklist's reliability and effectiveness, the pilot version of the VCA checklist was used by three speech-language pathologists (SLPs) for the analysis of two identical 30-minute videos of parent–child interactions: one of a child with typical language development and the other of a child with language-impairment. The SLPs suggested adjustments to the checklist, which were then integrated and led to a final version. Next, the final checklist's effectiveness and sensitivity to pragmatic deficiencies were assessed using a sample size of 30 children. Data were gathered by two SLPs, who employed the checklist when analyzing 30 videos of parent–child interactions. Participants were divided into two groups: G1, composed of 15 children previously diagnosed with language disorders, and G2, composed of 15 children with typical language development; both groups were matched for age and gender. Results: Significant differences were found between the two groups in the dialogue and narrative discursive categories. Conclusion: The checklist is an efficient and reliable tool for identifying pragmatic deficiencies faster and more easily than existing pragmatic tests and protocols.
Whatever Happened to Home Movies? Self-representation from Family Archives to Online Algorithms
Authors: Berliner Lauren S.
Published: March 2022

Home movies are cultural acts and artifacts that have much to teach us about the way we use media technologies to situate ourselves in contemporary and past cultures, and how we use them to store and reshape our images of self, family and community. Archives of personal, family, or community media have always been rich and complex, albeit relatively bound sites of analysis, however when we now upload personal media to video sharing platforms we subject them not only to new economies of scale, but of meaning and audience as well. The prolific use of platforms such as YouTube and TikTok now requires us to take stock of how systems of producing, organizing, and circulating self-made media are impacted by corporate profit motives and backend functionalities. The capacities and uses of digital recording technologies and online file sharing platforms have complicated the status of the category of home movies and necessitate a revision to the analytical frameworks that several scholars of Cinema and Media Studies have offered in the past. Through a discussion of several user-produced media texts on video sharing platforms, I aim to elucidate the ways in which the platform is now apparatus that structures new social and affective relations and how we conceive of and represent our personal worlds, drawing attention to how capital flows through these systems, commodifying images, affect, gestures, expression, movement, sounds, and desire, and how and where existing social biases are reproduced or challenged.
Recycling Destroyed Cities: Ruined Archives in Copy Art
Authors: Muliaee Maryam
Published: March 2022

This essay adopts a practice-based methodology to examine works that use copy machine as a tool of archiveology. Case studies are two of my animated films, collectively titled Recycled Series (2016-2017), and other examples of copy art, in which a series of (original and archival) images/films are degenerated with a black-and-white copy machine. I frame the degenerated images in these works as ruined images – anarchives that copy machines can produce for sensory experiences. I place these works in the context of archiveology (Russell 2018) to highlight two aspects in the ruined images: first, how the use of degeneration techniques in archiveology engenders urban imaginary; second, how archiveology as a mode of media art challenges the norms of authenticity and media specificity and unfolds the agency of recycling tools such as copiers. Using a copy machine to recycle film images, archiveology couples the practices of storytelling with the (re)discovery of the technologies of archives.
Bibliometric Study of Scientific Research from 2009 to 2019 on Critical Success Factors and Project Management Performance
Authors: Pereira Geordy Souza , Novaski Olívio , Santos Neto Norival Ferreira dos , Souza Luis Henrique dos Santos Silva , Telles Francismilton
Published: March 2022

Purpose: This paper seeks to carry out a bibliometric analysis of scientific research available on the Web of Science platform and related to Critical Success Factors (CSF) and project management performance.Theoretical framework: This study is based on concepts related to project management, particularly Critical Success Factors and project management performance.Design/methodology/approach: To conduct this study, scientific publications were retrieved from the database on the Web of Science platform and analyzed. A statistical and content analysis was carried out using the VOSviewer free software and Excel sheets, as well as the WordArt website (www.wordart.com) to create a keyword cloud.Findings: Results show the importance of the subject matter, which was featured in a large number of publications from 2009 to 2019. Engineering sectors are the main areas that deal with it, especially by presenting models, implementing metrics, critical factors, tools and cases, which are used as a basis for performance studies. Data show that partnership networks need creating with greater integration, collaboration, and exchange between publications developed by researchers in Brazil.Originality/Value: By carrying out a bibliometric analysis based on Critical Success Factors and project management development, it is expected to help understanding and the development of studies and the continuous improvement of research into project management, as well as to contribute to the discussion of the quality of scientific research in the field.Keywords: Project management, Critical Success Factors, Project performance, Bibliometrics.O
Mechanical properties of PVC geomembrane based on non-contact measurement
Authors: Zhang X. L. , Wu Y. Y. , Ma Z. Y. , Yin C. J.
Published: March 2022

The mechanical properties of polyvinyl chloride (PVC) geomembrane (GM), particularly its elastic modulus, are of the utmost importance in engineering design and evaluation of performance. The existing test methods make it difficult to provide an accurate elastic modulus of PVC GM. This research presents the establishment of an improved method for analysing the true stress–strain by non-contact measurement technology to determine the elastic modulus. Digital image correlation (DIC) was used to measure the axial and transverse strain, and it was found to give measurements of strain with a high degree of accuracy. The variation of Poisson's ratio is discussed and the true cross-sectional area is determined, allowing the true stress to be calculated theoretically. In accordance with the true stress–strain curve, the elastic modulus and linear range are established, which can provide designers with the tools to evaluate the true performance of GM and help them to select anti-seepage materials in design.
A literature review on COVID-19 [coronavirus] research specific to Australia including manuscripts on policy and media releases.
Authors: Hilton Deborah Joy
Published: March 2022

INTRODUCTION / OBJECTIVES: Comprehending the avalanche of statistical research on COVID-19 [coronavirus] is laborious. Predictions, forecasts, and diagnostic algorithms are important for planning, allocation, and meeting the needs of the increasing population disease burden. Statisticians must be aware of spreadsheets, databases, and calculation methodology to produce valid estimates. Policymakers, government officials, and planners interpret results and read reports without knowing calculation intricacies. Health care workers must be aware of scientific websites whilst they are under increasing stress due to aging populations and improved technology. It is important that context-specific information is sought, read, and understood.   METHODS: A literature review was undertaken to find context-specific statistical research information on COVID-19. The author performed a Pubmed search, a search utilising the coronavirus MeSH terms (Medical Subject Headings), adding the additional MeSH terms of Australia AND policy, and then another search with media as a text word. 
RESULTS:  The Pubmed search, utilising the MeSH (Medical Subject Headings) on coronavirus, adding the MeSH terms [Australia AND Policy] resulted in 52 records being retrieved. The Australian Government Department of Health website dedicated link listing coronavirus (COVID-19) news reports, statements, and media releases included 347 departmental media retrievals. CONCLUSION: The COVID-19 pandemic has posed itself as the most critical health issue of the 21st century. It is important to understand the quality evidence-based information within the context, specific to the reason for seeking information so that well-informed decisions are made that relate to preventative actions, early detection, and treatment options.
Teaching Practices Under the Shadow of COVID-19
Authors: KELEŞOĞLU Serkan , YETKİNER Alper
Published: March 2022

The COVID-19 pandemic, which started to be seen around the world at the beginning of 2020 and affected all the countries of the world in a short time, has severely affected all social systems, health being in the first place, and forced change. In this period, transformations that can be called reforms took place in education. The effect of distance education in formal education necessitated changes in teacher training processes, as well. This study aimed to evaluate the action plan designed to minimize the adverse effects of teaching practices, an essential pillar of the teacher training system. The participants of the study intended as action research, are mentor teachers and student teachers taking part in teaching practices in the 2020-2021 Academic Year. At the end of the research, three themes were reached from the views of the participants: the effects of the action on professional life, the obstacles encountered and suggestions for improvement. In light of the data obtained, it is suggested that teaching practices should be supported with tasks suitable for distance education, innovative technological material development should be given importance among these tasks, and student teachers should go through the teaching processes in which they can prepare these materials.
Technology of Teaching Game Techniques in Volleyball at the Stage of Initial Training
Authors: Doroshenko Eduard , Solovei Oleksandr , Melnyk Mykhaylo
Published: March 2022

Purpose. To scientifically substantiate the method of teaching game techniques at the stage of initial training to increase the level of technical fitness of young volleyball players. Materials and methods. The experimental research involved 36 young volleyball players born in 2011 – 18 athletes from the CI “Zaporizhzhia Regional Children and Youth Sports School” of the Zaporizhzhia Regional Council (main group) and 18 athletes from the CI “Vilniansk City Children and Youth Sports School ‘Kolos’” (comparison group) during the 2020-2021 academic year. Results. In the course of experimental research, the indicators of physical fitness of young volleyball players of the main group significantly increased in 80% of tests. The analysis of technical fitness indicators of young volleyball players of the main group shows that the introduction of the author’s method affects their positive dynamics in the tests: consecutive wall passes from a 3 m distance in 30 s; consecutive overhead passes in 30 s; consecutive forearm passes in 30 s; tennis ball toss over the net to the front line; tennis ball toss over the net to the back line (statistically significant differences, if p < 0.05). Conclusions. The author’s method of teaching game techniques in volleyball is effective and contains the algorithm of teaching, the levels of mastering game techniques, the stages of teaching game techniques, the sequence of teaching game techniques, the classification, occurrence and prevention of young volleyball players’ errors in the process of teaching game techniques, differentiation of exercises.
[RETRACTED] Twin Elements CBD Gummies - Benefits, Price, Ingredients 2022 v1
Authors: not provided twingummiests
Published: March 2022

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Twin Elements CBD Gummies - Benefits, Price, Ingredients 2022
Design and preparation of EcoFAB-N v1
Authors: Weiqi Kuang , not provided Ssanow , not provided Jkelm , Mark Müller-Linow , Peter Andeer , Dietrich Kohlheyer , Trent Northen , not provided jpvogel , Michelle Watt , Arsova Borjana
Published: March 2022

This protocol describes the production of the EcoFAB-N chamber published in the study Kuang et al., "N-dependent dynamics of root growth and nitrate and ammonium uptake are altered by bacteria Herbaspirillum seropedicae in cereal modelBrachypodium distachyon" The volume of the EcoFAB-N chamber is 4 mL. The mold is re-designed using SolidWorks 2017 software (Fig SM1) and the 3D printer files are available as attachments to this protocol. Figure: EcoFAB-N mold. All in one, single piece EcoFAB-N (a) compared to components of EcoFAB mold from Sasse et al 2019 (frame (b); base (c); insert (d)), the insert (d) is used in both molds.
[RETRACTED] Green Dolphin CBD Gummies Shark Tank & Reviews v1
Authors: not provided Greendolpincbdgummy
Published: March 2022

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Green Dolphin CBD Gummies Shark Tank & Reviews
[RETRACTED] Vermont Pure Hemp CBD Oil Watch In Shark Tank Episode v1
Authors: not provided aetleatmorase
Published: March 2022

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https://vermont-pure-hemp.jimdosite.com
Avanços no conhecimento da flora de Sergipe:
Authors: Felipe Barros Andrade Marcel , Pessôa Santiago Augusto César , Ibrahim Uehbe de Oliveira Marla
Published: March 2022

No Brasil são registradas 1.215 espécies de samambaias, sendo 43 ocorrentes em Sergipe, número reduzido em comparação a outros Estados da região Nordeste. O Estado apresenta poucos trabalhos conduzidos especificamente com samambaias e possui potencial para contribuir com novidades na distribuição geográfica de espécies do grupo. Diante disto, o presente trabalho teve como objetivo realizar um levantamento florí­stico das samambaias no Refúgio da Vida Silvestre Mata do Junco (894.76 ha), remanescente de Floresta Atlântica, situado no municí­pio de Capela, Sergipe. As expedições (n= 9) foram realizadas entre os meses de outubro de 2020 a abril de 2021 e os materiais coletados foram herborizados e depositados no Herbário da Universidade Federal de Sergipe (ASE). As identificações tiveram como base referências bibliográficas e comparações por meio de plataformas digitais e de exemplares depositados no ASE. Foram encontradas oito famí­lias, 13 gêneros e 23 espécies de samambaias, sendo cinco novos registros para Sergipe. As famí­lias mais representativas foram Pteridaceae e Polypodiaceae, com oito e cinco espécies, respectivamente. O gênero Adiantum apresentou o maior número de espécies (oito spp.). Apesar de os estudos com as samambaias serem incipientes em Sergipe, as informações obtidas neste trabalho reforçam a importância dos levantamentos florí­sticos. Estes estudos podem preencher as lacunas de conhecimento, evidenciando novas ocorrências e contribuindo com o melhor entendimento das samambaias na flora de Sergipe e brasileira.
Investigation of the effect of polymeric and non-polymeric materials in the hole transfer layer on the performance of perovskite solar cell
Authors: DELİBAŞ Nagihan , MORADİ Asghar , HOSSEİNİ Seyyedreza , MALEKİ Morteza , BAHRAMGOUR Mahsa , NİAİE Aligholi
Published: March 2022

In recent decades, due to advances in various industries, the use of renewable energy sources has increased significantly. Solar cells are one of the important tools in the use of renewable energies. Between the different types of solar cells, recently, perovskite solar cells, because of some advantages like low costs of materials used in their fabrication, simple manufacturing process, and high conversion efficiency, have gained the attention of many researchers. Emerging technology and recent research activities have helped perovskite solar cells to achieve high efficiency, which is highly dependent on the components and structures of the solar cell system. One way to achieve high efficiency is to use polymeric and non-polymeric materials as electron transporters (ETMs), hole transporters (HTMs), or as a stimulus to increase the performance durability of perovskite solar cells. Simulation tool is a very effective tool for designing solar cells. In this study, by using COMSOL Multiphysics software, the effect of using different hole transfer layers, both polymeric and non-polymeric, has been investigated. For this purpose, three HTM layers (Spiro-OMETAD, CuSCN, P3HT) have been investigated. The results represented that the efficiencies for these three materials were (16.8%, 15.7%, 12%), respectively, and Spiro-OMETAD has been more efficient.
Identification of Damage Size Effect of Natural Frequency on Sandwich Material using Free Vibration Analysis
Authors:   Institut Teknologi Sepuluh Nopember Faculty of Marine Technology, Department of Naval Architecture, Indonesia, Chandra Ariesta Rizky , Zubaydi Achmad , Ismail Abdi , Tuswan Tuswan
Published: March 2022

One of the most innovative developments in the field of advanced materials is sandwich materials. Sandwich material applications need standard requirements to be applied to marine structures, especially on ship construction. Sandwich material research is conducted on a laboratory scale to obtain the appropriate material composition in its development. In the process of developing this material, the material can be damaged. Most damage occurs in the core material, which results in difficulties in the identification process. This study compares damage identification methods based on free vibration analysis on the side sandwich plate of the ship’s hull. Damage-based identification is carried out to determine the response of vibration to the damage that occurs. Moreover, the method in this research uses a numerical approach and experimental vibration measurement. Numerical modelling is used to determine the appropriate boundary conditions and is shifted in experimental measurement. Damage modelling assumes that the material experiences core failure with a numerous variation model. Quantification of damage on the core correlates with natural frequency reduction due to a decrease in the stiffness of the sandwich material. Hence, the difference in the deviation value is used to determine the accuracy of damage identification.
Heavy Metals in the Sediment of the Islands of Lastovo and Mljet and the City of Dubrovnik
Authors:   RK Nautilus, Orlov Miroslav , Kramarić Roberto , Romac Ivana , Maričević Nela
Published: March 2022

The content of heavy metals (Fe, Mn, Zn, Cu, Cr, Hg, As, Pb and Cd) in the sediment of the marine aquatoriumof the islands of Lastovo and Mljet, and the city of Dubrovnik was examined in order to determine their impact on the environment. Divers collected the samples in a layer of 10 cm and 5 cm at the planned locations. The sample preparation was performed in the laboratory in an autoclave with acids in teflon vessels at elevated temperature. Determination of the concentration of elements was made on an atomic absorption spectrophotometer (AAS), by the method of flame, cold and hot vapors, and nickel vessels. The marine aquatorium of the islands of Lastovo and Mljet are not polluted with ecotoxic elements, while an increased concentration of mercury, arsenic and lead has been found in the marine aquatoriumof the city of Dubrovnik at several locations.
Proactive Career Planning in the Maritime Industry: Enhancing Millennials’ Workplace Enthusiasm in Montenegro and Turkey
Authors:   University of Montenegro, The Faculty of Economics, Podgorica, Montenegro, Melović Boban , Šekularac-Ivošević Senka , Muslu Aziz , Backović Tamara , Dabić Marina
Published: March 2022

This paper seeks to examine the attitudes of millennial maritime students when it comes to career planning and proactive behavior, in order to efficiently, effectively develop each students’ potential, and direct the activities of decision-makers (maritime companies and educational institutions). This research was based on a purposefully developed conceptual model and empirical research conducted on a sample of 308 students from Montenegro and Turkey. The research relied on a referential career engagement scale. The relevance of the hypotheses was tested by means of SEM model, logistic regression, Kruskal-Wallis test and eta coefficient. The results obtained show that proactive behavior of maritime students is a consequence of their attitudes established concerning career development. However, the attitudes of students vary depending on their country of origin and the year of their studies. Thus, through the influence on attitudes these two factors indirectly affect the proactive behavior of students. This emphasizes the posibility to foster students’ proactive behavior regarding maritime career planing through effectively management of public policies of the country, especially those related to the educational system. These findings explain the relationships between the students and their career planning and proactive behavior, strengthening the students’ competitivity on the market. Therefore, the paper provides a significant contribution in offering insights to decision-makers and the creators of educational policies.
Supplying of Marine Diesel Engine Ecological Parameters
Authors:   National University Odessa, Maritime Academy Odessa, Ukraine, Victorovych Sagin Sergii , Andriiovych Kuropyatnyk Oleksiy , Victorovych Zablotskyi Yurii , Victorovich Gaichenia Oleksandr
Published: March 2022

The by-pass system of exhaust gas for the engine 6L20 Wartsila has been observed. The requirements of Annex VI MARPOL towards nitrogen oxide concentration in ship engine exhaust gases have been provided. The purpose of research was the determination of diesel 6L20 Wartsila by-pass exhaust gases optimum volume – at this the nitrogen oxide minimal concentration in exhaust gases is assured, the minimal increase (comparing with operation mode without by-pass) – specific effective fuel consumption, supporting of necessary thermal factor diapason of engine cylinders. The research was performed for the exhaust gas by-pass diapason 0…10 % with engine load diapason 0.55…0.85 % from nominal power. Upon experimental results it has been stated that the exhaust gas by-pass usage favors the ecological parameters of ships engine operation modes – by this at the range of exploitation load 0.55…0.85 % from nominal power the nitrogen oxide concentration in exhaust gas is decreased to 1.32….12.97 %. The exhaust gas by-pass impairs the combustion process and favors the increasing of specific effective fuel consumption and increasing the temperature of exhaust gases. The exhaust gas by-pass system effectiveness assessment should be performed by complex estimation of the following engine operation parameters: the nitrogen oxide concentration in exhaust gas, increasing of specific effective fuel consumption(SFOC), the exhaust gas temperature. As optimal degree of exhaust gas by-pass value when the maximum decrease of nitrogen oxide emission at minimal increase of fuel consumption and simultaneous engine thermal factor handling has to be considered.
Analytical Research of the Container Ships Cargo Area Fires in the Period From 2010 to 2020
Authors:   University of Dubrovnik, Marine Department, Krmek Ivica , Kos Serđo , Brčić David
Published: March 2022

Container transport by sea has almost doubled in the last decade. Accordingly, container ships’ size has increased significantly, and the latest container ships carry up to 24000 Twenty-foot Equivalent Units (TEU). In the near future, the appearance of container ships with a capacity of 25000 TEUs can be expected on the market, because the design is already available. It is known that 10-12% of transported containers contain International Maritime Dangerous Goods (IMDG) cargo. The above stated reasons directly impact the frequency of container ship fires in cargo spaces. According to the Insurance Companies, fires occur on average every two months, and this is a growing problem of container transport by sea. In this paper, 23 fires in the cargo area, either in cargo holds or on deck, were analysed. The analysis results determined the most common causes of fires and have shown that the current fire protection systems on container ships are ineffective. It is unacceptable that firefighting systems’ inefficiency results in the loss of human lives, abandonment of vessels, environmental pollution, and extensive property losses related to cargo and ship structure. Due to all the above, it is necessary to continuously work on new regulatory and technical solutions to improve the fire safety of cargo areas on container ships.
Farklı endikasyonlarda terapötik kontakt lenslerin etkinliği
Authors: KARAYEL Münir , HARBİYELİ İbrahim İnan , SULANÇ Begüm , ERDEM Elif , YAĞMUR Meltem
Published: March 2022

Amaç: Bu çalışmanın amacı farklı endikasyonlar için terapötik amaçlı yumuşak kontakt lens (TKL) uygulanan olgularda tedavi etkinliğini ve komplikasyonları incelemektir.

Gereç ve Yöntem: Aralık 2011 – Haziran 2020 tarihleri arasında TKL uygulanan olguların tıbbi kayıtları retrospektif olarak incelendi. Demografik özellikler, klinik endikasyonlar, tedavi öncesi ve sonrası en iyi düzeltilmiş görme keskinlikleri (EİDGK), tedavi sonrası klinik bulgularda iyileşme ve TKL ile ilişkili komplikasyonlar kaydedildi.

Bulgular: Yaşları 10-90 yıl arasında (ort. 56,08±21,18) değişen 86 olgunun (36 kadın, 50 erkek) 95 gözü çalışma kapsamına alındı. Tüm olgulara yumuşak silikon hidrojel kontakt lens (KL) uygulandı. Olguların ortalama TKL kullanım süresi 40±70,2 hafta idi (1 gün-416 hafta). TKL uygulaması için en sık endikasyonlar; büllöz keratopati (39 göz, %41,1), epitel defektleri (15 göz, %15,8) ve filamenter keratit (14 göz, %14,7) idi. TKL ile 45 gözde (%47,4) klinik bulgularda iyileşme, 30 gözde (%35,3) EİDGK’de artış saptandı. Komplikasyon olarak 8 gözde (%8,4) TKL kaybı ve 4 gözde (%4,2) mikrobiyal keratit gelişimi gözlendi. Nörotrofik kornea ülserli 10 gözde (%90,9), filamenter keratitli 11 gözde (%78,6) ve epitel defektli 10 gözde (%66,7) klinik bulgularda iyileşme saptandı. Kornea bulgularındaki iyileşmeyle paralel olarak filamenter keratitli 10 gözde (%71,4), epitel defektli 6 gözde (%40) ve nörotrofik kornea ülserli 3 gözde (%30) EİDGK’de artış saptandı.

Sonuç: Uygun endikasyonlarda TKL kullanımı klinik iyileşmeye yardımcı, cerrahi girişim gereksinimini azaltabilen başarılı bir uygulamadır.
Influence of establishing a glide path on the amount of apically extruded debris and the preservation of root canal anatomy
Authors: KÜDEN Cihan , YOLDAŞ Oğuz , EVLİCE Burcu , YİLMAZ Sehnaz , DUMANİ Ayşin
Published: March 2022

Purpose: This study aimed to investigate the effect of glide path preparation before shaping with reciprocating single-file, rotary single-file and multiple-file systems on the debris extrusion from the apical, and on the root canal transportation.

Materials and Methods: One hundred twenty curved mesial root canals of mandibular first molars were randomly distributed to six groups (n=20). The root canals were prepared with Reciproc in Group R, OneShape in Group OS, and ProTaper Next in Group PN. In the last three groups (RG, OSG and PNG), a glide path was created before the shaping instruments used in the first 3 groups. The pre- and post-preparation weight were measured by using a 10-5 microbalance. Pre- and post-preparation of the root canals were scanned by using cone-beam computed tomography (CBCT).

Results: The debris extrusion in RG and OSG was significantly higher than R and OS, respectively. However, no significant differences were found between PN and PNG. Considering the root canal transportation, RG showed lower than R for 5 mm and 7 mm levels and the OSG group showed lower than OS for all levels. Creating a glide path significantly increased the shaping time for OS and PN groups.

Conclusion: In advance of shaping with a single-file system in curved canals, creating a glide path preserves canal anatomy. However, it may lead to increase apical debris extrusion.
Could intussusception be the first manifestation of Henoch-Schonlein purpura?
Authors: SÜRÜCÜ KARA İlknur , ÖZDAMAR Mustafa , KOLKIRAN Abdulkerim , AYDIN PEKER Necla , TOPAL İsmail
Published: March 2022

Henoch-Schönlein purpura, leukocytoclastic vasculitis is the most common vasculitis of childhood. Immunoglobulin-A accumulates in the small veins of the skin, joints, gastrointestinal tract and kidney. The involvement of the skin in palpable purpuric rash is usually the first finding and basically shows the lower extremities and hips. Joints can be affected, kidneys can be affected. Complaints of gastrointestinal system usually occur one week after purpuric rash. The most common clinical features of the digestive system are abdominal pain and vomiting. The incidence of Intussusception in digestive tract involvement is about 1-5%. However, intussusception is not the first symptom. In our case, abdominal pain and Intussusception are the first findings. Typical rash appeared three days after operative. Second case in literature.
Evaluation of the incidence of renal vein anomalies and their relationship with renal stone disease and renal tumors by abdominal multidetector computed tomography
Authors: ASLAN Serdar , ÇAKIR İsmet Miraç
Published: March 2022

Purpose: This study aimed to evaluate the types and incidence of renal vein anomaly (RVA) and their relationship with renal stone disease and renal tumors with multidetector computed tomography (MDCT).

Materials and Methods: We evaluated retrospectively 10124 patients abdominal MDCT images. After the exclusion criteria, the final study population consisted of 9294 patients. The demographic characteristics of the patients, the presence of RVA, the presence of renal stone disease and renal tumor were recorded. RVAs were separated into three subgroups: retroaortic left renal vein (RLRV), circumaortic left renal vein (CLRV), and double right renal vein (DRRV). The presence of renal stone disease and renal tumors were recorded in patients with RVAs.

Results: 1389 cases had RVA (14.9%). RVA was higher in males than females. The prevalence of DRRV, RLRV, and CLRV were 9.5%, 3.9%, and 1.9%, respectively. Renal tumors was detected in 20, and renal stone disease was detected in 243 of 1389 RVA cases, there was no statistically significant correlation. However, a statistically significant correlation was found between left renal stone disease with RLRV and CRLV.

Conclusion: Contrary to popular belief, RVAs are not uncommon. It is very important to know the presence of RVA before retroperitoneal surgery to prevent possible complications. In addition, RLRV and CLRV are thought to be factors that predispose to the development of left renal stone disease.
Clinical and radiological features of COVID-19 infection in pediatric hematology-oncology and transplant patients
Authors: AYGÜNEŞ Utku , KARAGÜN Barbaros , ŞAŞMAZ Hatice İlgen , AKBAŞ Tuğana , ANTMEN Ali Bulent
Published: March 2022

Purpose: The goal of this study is to explain the characteristics of COVID-19 in this demographic, as well as the impact it had on pediatric cancer care during the pandemic.

Materials and Methods: Fifteen COVID-19 patients diagnosed were studied retrospectively. Clinical, laboratory and radiological data were collected in relation to 15 patients under the age of 18 who tested positive for Sars-CoV-2.

Results: Of the 12117 pediatric hemato-oncological patients tested for COVID-19, 1125 patients showed symptoms, and 14 tested positive. The majority of cases suffered minor illnesses. A total of ten children required inpatient care, five needed oxygen support, and four required mechanical ventilation and later died. It was noted that the duration of real-time polymerase chain reaction (RT-PCR) positivity was prolonged in patients receiving intensive chemotherapy and/or immunosuppressive therapy. Patients’ chemotherapy was delayed in all 15 (100%) Sars-CoV-2-positive patients. Although changes visible on chest computed tomography (CT) imaging of children were mainly milder than in adults, radiological findings were more severe in patients who received relatively intensive cancer treatment.

Conclusion: Children who have been treated for cancer or who have undergone a hematopoietic stem cell transplantation (HSCT) may be at greater risk of severe COVID-19 and should be under constant observation.