bluuebunny/crossref_metadata_2025 huggingface dataset:
Postoperative evaluation of analgesia promoted by the use of dexmedetomidine alone and associated with morphine as an intramuscular pre-anesthetic medication in bitches submitted for ovariohysterectomy
Authors: Pereira Fernanda Silva , Perotto Aline Bossa , Pizzinatto Fábio Dumit , Sônego Dábila Araújo , Gomes Lianna Ghisi , Ribeiro Alexandre Pinto , Guimarães Luciana Dambrósio
Published: January 2022

Abstract This study aimed to evaluate the postoperative analgesic efficacy of dexmedetomidine alone and when associated with morphine in patients under general inhalational anesthesia with isoflurane and undergoing elective ovariohysterectomy (OH). Twenty healthy bitches were selected via physical and laboratory examinations. Prior to the study, they underwent a 24-h period of adaptation to the environment and observers. They were then randomly divided into two groups: the dexmedetomidine group receiving a dose of 10 μg/kg, and dexmedetomidine group (10 μg/kg) associated with morphine receiving a dose of 0.3 mg/kg, administered via the intramuscular route. Thereafter, patients were induced with propofol and maintained with isoflurane diluted in 100% oxygen administered through a calibrated vaporizer. To verify postoperative analgesia, pain assessments were performed using the modified Glasgow (EGM) and Melbourne (EM) scales. For sedation assessment, the Dobbins scale was used at different times: before the administration of pre-anesthetic medication (T0) and at another six times in the postoperative period, 1 (T1), 2 (T2), 4 (T3), 8 (T4), 12 (T5), and 24 (T6) h after orotracheal extubation. No statistical differences were observed between groups in the scales according to Dunn’s Kruskal-Wallis post hoc test, and between the times a statistical difference was noticed by the Friedman test (p<0.05) for the EGM and EM scale scores, but there was no need for analgesic rescue. Therefore, we found that isolated dexmedetomidine and morphine produced adequate analgesic effects in the postoperative period of bitches submitted for OH.
“E AGORA, JOSÉ?”: MANCHETES, LIDES E A GRAMÁTICA DA (IN)VISIBILIZAÇÃO SOCIAL
Authors: Nascimento Roseli Gonçalves do
Published: January 2022

Resumo Este artigo apresenta uma análise crítica de gênero de manchetes e lides de seis notícias online sobre um acidente de trânsito envolvendo dois cidadãos brasileiros que epitomam duas classes socioeconômicas: a classe dominante (ATOR 1) e a classe trabalhadora (ATOR 2). Tendo como ferramentas o sistema de transitividade da gramática sistêmico-funcional (HALLIDAY; MATTHIESSEN, 2004) e a taxonomia de representação de eventos sociais (FAIRCLOUGH, 2003), o objetivo é verificar como a mídia recontextualiza o evento social e seus atores de modo a construir representações particulares sobre eles. A análise revela um conjunto de mecanismos gramaticais e discursivos que forjam a invisibilização do ATOR 2 como vítima fatal do acidente e, por outro lado, mitigam a responsabilidade do ATOR 1 como provocador do evento.
JCV viruria associates with suboptimal recovery of kidney function three years after living kidney donation
Authors: Querido Sara , Ormonde Carolina , Adragão Teresa , Weigert André
Published: January 2022

Abstract Introduction: Few studies have investigated pre-donation factors that could affect renal recovery after living kidney donation (LKD). We retrospectively investigated the role of John Cunningham virus (JCV) infection and other pre-donation factors on the magnitude of kidney function decline after LKD. Methods: Urine JCV viral loads, glomerular filtration rate, and blood pressure were evaluated in 60 consecutive LK donors before donation. Suboptimal compensatory hypertrophy was defined as an eGFR <60% of the pre-donation eGFR. Results: LKD (40% JCV infected) were followed for 3.2±1.6 years. No association was found between age, gender, and baseline hypertension with 1st, 2nd, 3rd, and 4th years post-donation eGFR <60% of the pre-donation eGFR. Mean eGFR recovery at the 3rd year after donation was lower in JCV infected donors vs non-infected donors (61.8% vs 71.0%, p=0.006). Conclusion: We hypothesized that JCV could shift glomeruli into a hyperfiltration state before nephrectomy, modulating the magnitude of compensatory hypertrophy after donation. Conversely, JCV might curtail the ability of the remaining kidney to promote hyperfiltration. Longer follow up is needed to determine whether JCV viruria ultimately leads to lower eGFR over time or if it is a protective factor for the remaining kidney.
Análise da divulgação das teses em Contabilidade no Brasil
Authors: Pereira Alefi dos Santos , Vendramin Elisabeth de Oliveira
Published: January 2022

O objetivo da presente pesquisa foi analisar a divulgação do conhecimento científico gerado nas teses em Ciências Contábeis no Brasil defendidas nos programas de pós-graduação stricto sensu, entre 2009 e 2018. É um estudo com abordagem qualitativa de caráter descritivo, a partir de pesquisa bibliográfica e documental. Para a coleta de dados, utilizou-se dos repositórios de teses e dissertações e regimento dos programas de pós-graduação em contabilidade no Brasil, além do acervo disponível na plataforma lattes do CNPq. Foram analisados os dados registrados no currículo lattes dos doutores titulados em cada programa de pós-graduação. Os dados demonstram que as instituições de maior relevância em projetos de pesquisas, a FEA USP e FURB estão entre as que mais publicam. Constatou-se que as teses estudadas apresentam divulgação, em grande parte, por anais em congresso e eventos acadêmicos. Dentre os artigos publicados em periódicos científicos, 38,0% foram em revista de Qualis A2, B1 e B2, em que a FEA USP foi a universidade responsável pelo maior número de publicações. Verificou-se, ainda, que dos 302 artigos publicados com relação direta às teses dos doutorados, houve 2.382 citações em outras pesquisas científicas. Do total geral das teses defendidas e suas respectivas publicações em artigos periódicos, verifica-se que a região Sudeste foi a que obteve os maiores índices de publicações. Observou-se uma limitação em repassar esses dados da área contábil para a sociedade em geral, e uma das sugestões é modificar a forma de divulgação e da escrita, como por exemplo, em formato de palestras e workshops.
Impact of correctable mediolateral tibiofemoral subluxation on unicompartmental knee arthroplasty implant survival in patients with anteromedial osteoarthritis
Authors: Oosthuizen Christiaan R , Maposa Innocent , Magobotha Sebastian , Pandit Hemant
Published: January 2022

ABSTRACT BACKGROUND: Medial unicompartmental knee arthroplasty (UKA) is advocated for treating symptomatic anteromedial osteoarthritis (AMOA). Correctable mediolateral tibiofemoral (TF) subluxation can be safely ignored according to the UKA enthusiasts. However, no clinical studies compare the results in AMOA patients with and without subluxation. This study reports the early prospective clinical outcomes of medial UKA in AMOA, with and without correctable mediolateral TF subluxation and the comparison to the retrospective larger patient cohort. METHODS: The results of an initial retrospective study (R) consisting of 436 consecutive UKA cases (patients treated from May 2012 to October 2017) were compared to a prospective study (P) consisting of 272 consecutive UKA cases in 248 patients with AMOA (evaluated from November 2017 to May 2020). All patients in both cohorts underwent cementless Oxford UKA and were classified into two groups: group 1 (AMOA without mediolateral subluxation) and group 2 (AMOA with mediolateral subluxation) on anteroposterior (AP) radiological knee stress views. Survival analysis methods (Kaplan-Meier and logrank test) were utilised to compare implant survival between the two groups (1 and 2) and the cohorts (R and P). The multivariable Cox proportional hazards model was used to determine risk factors for time to revision. RESULTS: The two cohorts, R and P, had patient groups (group 1 vs group 2) matched for age, sex, wear pattern, preoperative Oxford Knee Score and follow-up period. The overall implant survival for the P cohort that had at least 20 months of follow-up was 98%. The overall implant survival for group 1 (99%) was significantly better compared to group 2 (93%). These results are amplified in the R cohort with an average follow-up of 54 months, and with the group 1 survival at 97% and group 2 at 86%. Subsequent months of follow-up show more failures in group 2 compared to group 1. Patient-reported outcome measures (PROMs) and range of movement were similar for both groups. CONCLUSION: Patients with AMOA and correctable mediolateral TF subluxation have a significantly higher risk of implant failure compared to those without subluxation. This study establishes this association, which has an important implication on patient selection, but does not confirm causality. Level of evidence: Level 4. Keywords: unicompartmental knee arthroplasty, partial, osteoarthritis, X-ray, implant
The short-term outcomes of hip arthrodesis in children and adolescents with end-stage hip disease
Authors: Mniki Thato A , Maré Pieter H , Marais Leonard C , Thompson David M
Published: January 2022

ABSTRACT BACKGROUND: The management of end-stage hip disease in children and adolescents is a challenging clinical problem. While total hip replacement (THR) offers the benefit of improved mobility, this is offset by the risk of multiple revisions. Hip arthrodesis remains a salvage option to relieve pain and restore function at the cost of hip movement. This study aimed to determine the short- to medium-term outcome of hip arthrodesis in paediatric and adolescent patients in a developing world setting. METHODS: All children and adolescents under the age of 18 years who underwent hip arthrodesis between 2010 and 2014 were included in the study. Measurements included diagnosis, preoperative deformity, fusion position, fusion rate and functional outcomes. Our surgery involved transarticular compression screw fixation and subtrochanteric osteotomy. Postoperative skeletal traction maintained optimal limb position for two weeks, after which spica cast immobilisation was used. RESULTS: Nineteen patients (11 female) had hip fusions at a mean age of 12 years (range 5-18). The mean follow-up period was 5 years (range 1-8). Most cases were due to end-stage TB arthritis (12/19; 63%). Other causes were septic arthritis (3/19; 16%); neglected slipped capital femoral epiphysis (1/19; 5%); post-traumatic avascular necrosis (1/19; 5%); and idiopathic chondrolysis (2/19; 11%). Primary fusion was achieved in 68% (13/19) of cases. Six patients developed complications. Complications included adduction drift (3/19), failed fusion (3/19), screw malpositioning (1/19) and screw breakage (1/19). Eight reoperations were required in six patients. In two of these patients, one additional surgery had to be performed to achieve fusion or correct limb position. The mean fusion position was 31° (range 20 to 50) flexion, 2° (range 10 to -10) abduction, and 1° (range 10 to -10) external rotation. Mean leg length discrepancy was 1.8 cm (range 0 to 4.5) of shortening. All except one patient reported relief of hip pain and satisfaction with the procedure. CONCLUSION: While hip arthrodesis is a technically challenging procedure, high fusion rates and reliable pain relief may be expected in these patients. However, complications should be anticipated, and reoperation may be required to achieve fusion and an optimal limb position Level of evidence: Level 4 Keywords: end-stage hip arthritis, TB hip, hip arthrodesis, hip fusion, subtrochanteric osteotomy
Enacting Contextually Responsive Scholarship: Centring Occupation in Participatory Action Research with Children in India
Authors: Benjamin-Thomas Tanya Elizabeth , Rudman Debbie Laliberte , Thomas David Mark
Published: January 2022

ABSTRACT Occupation-based scholars are striving to mobilize socially responsive scholarship to address occupational injustices from local to global scales. Moving forward involves expanding beyond Western, Anglophonic, female, able-bodied, adult perspectives on occupation, with critically informed participatory methodologies providing one key means to incorporate diverse perspectives on occupation and occupational justice. Drawing upon a participatory action research project with children with disabilities from rural South India, this paper puts forward an understanding of participatory action research as an occupational process (i.e., embodying a variety of occupations) and an occupation-based process (i.e., informed by an occupational lens). We forefront how 'occupation' was centered and mobilized within the process of this participatory action research. In addition, drawing on select study findings, we illustrate and discuss how participatory action research provided a forum to partner with the child co-researchers and collaboratively identify and critically analyse occupational injustices. Through this illustration and discussion of participatory action research as an occupation-based process and occupational process, we demonstrate its potential to be used to enact contextually responsive scholarship and praxis. Keywords: occupation-based participatory action research, occupational justice, occupation-based transformation, participatory filmmaking
Perspectives on Native American Imagery from Students at a Premiere Tribal University
Authors: Scola Zach , Wilkerson Zach , Brian S. Gordon
Published: January 2022

Haskell Indian Nations University is the sole 4-year intertribal university in America and their athletics department is called The Fightin’ Indians. Their logo and name seem to contradict most of the research describing the negative impacts of Native imagery. Interviews were conducted with current students at Haskell University to understand their feelings towards Native imagery overall. When exploring the usage of Native imagery by Haskell it was apparent the students felt as an all-Native institution there was a sense of ownership to utilize the imagery but were aware it misrepresented some Native people. The students also discussed how their imagery may influence outsiders’ perspectives. This study helps us understand a unique situation and should lead to future research around Native American imagery in sport.
Skin Hypersensitivity and Precipitating Antibodies Against Allergic Bronchopulmonary Aspergillosis
Authors: Naseer Amtul , Huda Hafiz UL , Naseem Khalida
Published: January 2022

Allergic bronchopulmonary aspergillosis (ABPA) is a very fatal disease and more than four million people have been affected. We collected data of forty-five patients and a skin hypersensitivity test was performed. We also evaluated precipitating antibodies against Aspergillus fumigatus. Instant hypersensitivity reactions were recorded in 22.22% of patients and 6.66% displayed delayed type III reaction. 4.44% of patients exhibited precipitin bands and three infections of ABPA among 45 infected people. A literature survey was also made to understand Aspergillus fumigatus.
QZSS L5 Bandwidth Frequency Filter Design for QZSS Receiver
Authors: Pattameak Julongkorn , Onanong Narumon , Makpradab Teerachet , Chinnapark Surachet , Kenpankho Prasert
Published: January 2022

The purpose of this study was to design QZSS L5 Bandwidth Frequency Filter for QZSS Receiver. We presented the configuration of the Butterworth bandpass filter by using PSpice as the tool for the simulation. Bandpass filter frequency of the QZSS L5 with bandwidth is designed in 25 MHz using the Butterworth filter which is presented in this article. These designed circuits are composed of the 3rd order. Moreover, the combination between low pass filter and high pass filter is performed as a bandpass filter. In conclusion, this designed filter on the frequency of QZSS L5 is to be useful by using the Butterworth bandpass filter.
Diving Deeper on Their Realms: The Prominence of Education on Street Children
Authors: Bermudez Alexis Jewel L. , Abalos Christian Paul G. , Aguilar Christian Angelo L. , Campos Finlay Whea H. , Rempillo Jane P. , Besa Adonis S. , Abusama Hassanal P.
Published: January 2022

This study looks at the lives of children after accessing education, the assistance provided, and the efficiency of education at the heart of the classroom. This study aims to answer the following questions about street children: (i) How can they go to school and learn despite the challenges of being street children?; (ii) What programs are available to help them?; (iii) To what extent can these programs be provided to children?; and (iv) When taking to the streets. This study used a qualitative method by conducting interviews with five children aged 10-15 years who came from the city of Tacurong, the Philippines. Some street children continue their education despite all their limitations, some other children take to the streets to find additional money with the knowledge of their parents, and the amount of money they bring home is barely enough or only sufficient, and some programs reach those who are less able. In short, street children are aware of the importance of learning, they have dreams and many are trying to achieve them in any way they can - even if it means risking their lives to beg for alms on the streets. Since this study proves how important education is for these children, this study provides a better scope for us to look at children that are roaming the streets to achieve their dreams and programs.
Design of Webinar Information System for People with Hearing Impairments
Authors: Sumitra Irfan D. , Wirawan Erik , Putra M. , Kusumaningrat I. , Maulana Hanhan
Published: January 2022

This research aimed to design a webinar platform that can help the deaf understand information while attending online seminars using sign language interpreter features. That way, the deaf will have no difficulty understanding the material being delivered by the speaker. This research method used descriptive methods to describe the problems faced by deaf webinar participants, where the difficulty met when attending online seminars using webinar media. In general, webinar applications lack sign language interpreting features, confusing webinar participants with hearing loss in understanding what the speaker is talking about. This webinar platform can display sign language translators according to the sentences spoken by the speaker. These study results are expected to help create a webinar platform with features that make it easier for participants with hearing disabilities to understand the material quickly.
Motorcycle Child Seat for Child with Special needs: Its Design Process and Problem-based Learning
Authors: Al Qushai Ihza Lisiano , Sholeh Arnaz , Budiarta Wahyu Nur , Triawan Farid
Published: January 2022

Most of child safety seats for motorcycle available in Indonesian market do not provide enough safety for the children passenger, especially for special needs child. This makes a special needs child cannot ride a motorcycle and prefer to use an automobile for their transportation means. However, it becomes a problem for a low-income family that can only afford a motorcycle. To address this problem, the present work aims to i) design a portable child safety seat for those with special needs that can be placed at the back side of the motorcycle, ii) provide safety feeling to the child by making a capsule-like shape for overall protection, iii) demonstrate an education case-study for mechanical design course. Discussion on how to determine the specification based on problem definition as well as the explanation on the design process of seat’s frame and body are provided. This work can be also used a reference for problem-based learning in mechanical engineering design course.
The Effect of Comparison of Soybeans and Coconut Water on Bio-Battery Electrical Power
Authors: Valensia Valensia , Sadiyyah Fitriani Halimatus , Hibatulloh Miussa Rio , Setiadi Dwi Putra , Nandiyanto Asep Bayu Dani , Anggraeni Sri , Kurniawan Tedi
Published: January 2022

The world is currently facing an energy crisis. This research was conducted to create alternative energy by utilizing abundant biomass in nature. The novelty of this study: (1) Use of soybean biomass with coconut water as an electrolyte paste, (2) Testing of bio-battery resistance to wall clocks, and (3) Comparison of the composition of the two materials. In this study, an electrolyte paste made from soybeans (SBs) and coconut water (CWs) with a ratio of 7/1, 6/2, 5/3, 4/4, 3/5, 2/6, and 1/7. To support the analysis, an electrical voltage test and a battery resistance test for wall clocks were carried out.  The experimental results show that the composition of coconut water increases the value of the electric voltage on the bio-battery. The composition of coconut water serves to activate the ions in the paste. Meanwhile, more soybean content will increase bio-battery life. It was found that the bio-battery with electrolyte paste of soybeans and coconut water can be used as alternative energy. The results of this research are expected to offer renewable alternative energy for world energy security.
Plug-and-Play-Visualisierung für flexible Automation
Authors: Brecher C. , Aachen Rwth , Kolster D. , Aachen Rwth , Herfs W. , Aachen Rwth , Jensen S. , Förderung Gesellschaft Zur , Pleßow M. , Förderung Gesellschaft Zur
Published: January 2022

Die Erstellung grafischer Benutzeroberflächen für flexible Automatisierungssysteme ist ein zeitaufwendiger und kostenintensiver Prozess. Geräteintegrationstechnologien wie EDDL und FDT/DTM bieten bereits eine erste Hilfestellung zur Integration unterschiedlicher automatisierungstechnischer Komponenten in einen bestehenden Anlagenverbund und zur Erstellung einer initialen Visualisierung. Dies ist jedoch häufig von Einschränkungen geprägt. Der textdata beschreibt einen Ansatz, der eine weitgehend plattformunabhängige Plug-and-Play-Geräteintegration und eine darauf basierende automatisierte Generierung grafischer Benutzeroberflächen ermöglicht.
WIA-PA: ein neuer Standard für drahtlose Kommunikation
Authors: Jinsong Ouyang , Dan Liu
Published: January 2022

Der Beitrag beschreibt den Hintergrund und die Herausforderungen an die industrielle drahtlose Kommunikation und fasst den Normungsprozess zusammen. Es werden Eigenschaften von WIA-PA, eine Spezifikation für industrielle drahtlose Netzwerke in der Prozessautomation, vorgestellt und in deren Netzwerkaufbau, die Netzwerktechnologie und den Protokoll-Stack eingeführt. WIA-PA ist zur Zeit Gegenstand der internationalen Normung. Weiterhin wird WIA-PA mit den anderen beiden wichtigen Spezifikationen auf diesem Gebiet, WirelessHART und ISA100.11a, verglichen. Schließlich werden vier Anwendungen vorgestellt.
Virtuelle Inbetriebnahme von Transportsystemen
Authors: Roßmann JÜrgen , Stern Oliver , Wischnewski Roland
Published: January 2022

Die virtuelle Produktion kann insbesondere im Rahmen einer virtuellen Inbetriebnahme dazu textdataen, Fertigungsanlagen mit hoher Qualität in kürzerer Zeit zu errichten. Zur Realisierung wird idealerweise ein 3-D Modellierungs- und Simulationssystem eingesetzt. Dabei liegt - wie dieser textdata beschreibt - ein Schwerpunkt auf der Integration von werkstückträgerbasierten Transportsystemen, da diese hinsichtlich der in großem Umfang genutzten Sensoren und Aktoren sehr komplex sind. Hier können Ingenieure mithilfe eines digitalen Modells Steuerungsprogramme erstellen und verifizieren, lange bevor die reale Anlage aufgebaut wird.
Intelligente Assistenzsysteme für die Automation
Authors: Windmann Stefan , Niggemann Oliver
Published: January 2022

Die immer größeren Datenmengen, die in Automatisierungssystemen anfallen, führen zu einer Überforderung des Menschen bei der Prozessführung und -optimierung. Eine Möglichkeit, den Anwender bei diesen Aufgaben zu unterstützen, ist es, intelligente Assistenzsysteme einzusetzen, die die Prozessabläufe automatisch überwachen und optimieren. Der Beitrag zeigt am Beispiel der am Fraunhofer IOSB-INA entwickelten Toolbox proKNOWS, wie sich solche Assistenzsysteme bereits heute in einem heterogenen industriellen Umfeld realisieren lassen.
Super- or Single Infection: Wolbachia Supergrouping of Wild Mosquito Populations from Varied Location Types in Peninsular Malaysia
Authors: Mohd Mohtar Noor Shazleen Husnie , Osman Emelia , Md Yatim Mohd Farihan , Azil Aishah Hani
Published: January 2022

Wolbachia has the ability to cause reproductive abnormalities in infected hosts including cytoplasmic incompatibility (CI). CI is activated when there are multiple Wolbachia supergroups or strains infection present in insect populations. Wolbachia-transinfected mosquitoes have been used widely in some countries as a biological control agent. In order to ensure a successful Wolbachia establishment, it is important to determine the diversity of natural Wolbachia present in the wild mosquito populations. The adults and immature stages of mosquitoes were collected from urban, suburban and rural areas and were reared into adults and identified to species before being subjected to molecular analysis. We found that 22% out of 222 males and 34.6% of 543 females tested were carrying Wolbachia based on PCR amplification of the Wolbachia 16S rDNA genes technique. PCR digestion for Wolbachia supergrouping showed that most of the Ae. albopictus were superinfected with Wolbachia (52.41%), whereas 21% and 28% of the positive samples were singly infected with supergroup A and B, respectively. There is an indication that prevalence of Wolbachia varies between mosquito populations in different areas. However, further studies to incorporate both PCR amplication of the Wolbachia 16S rDNA and wsp genes with bigger sample size should be performed to measure exact infection of Wolbachia in Malaysia. The baseline data on diversity of Wolbachia supergroups is expected to facilitate Wolbachia strategy by helping us to better understand the patterns and impact of the bacteria’s transmission in the environment.
Engineering Lactococcus lactis as a Cell Factory for the Production of Limonene
Authors: Shaili Nurul Aishah , Song Adelene Ai-Lian , Othman Sarah , Lionel Lian Aun In , Ong-Abdullah Janna , Abdul Rahim Raha
Published: January 2022

Limonene is a plant monoterpene which contributes significantly to the scent of most essential oils due to its pleasant fragrance. The compound had been reported to have anti-cancer properties against several types of cancer including colorectal cancer. However, the production of this compound in nature is limited because it is produced as a secondary metabolite. To overcome these challenges, Lactococcus lactis was developed as a heterologous host for the production of limonene. A synthesized limonene synthase (LS) from Mentha spicata (mint) was cloned into L. lactis NZ9000. Western blot analysis using mouse IgG His-Tag monoclonal antibody showed successful LS expression by L. lactis at the size of ~55 kDa. GC-MS analysis results showed that limonene production was optimum after 24 h of induction (~8.0 ppm). Metabolic engineering was attempted to enhance the limonene production by overexpression of lactococcal 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMGR) and mevalonate kinase (mvk) genes in the bacterial host. The recombinant L. lactis carrying pNZ:LSMM plasmid successfully enhanced the limonene production to two-fold (~15.1 ppm) after 24 h of induction. The outcomes of this study show the potential of L. lactis to produce plant proteins and bioactive compounds production, which prospectively leads to an oral delivery system for anti-cancer compounds.
Principios pedagógicos del cine educativo. Aproximación histórica a sus orígenes
Authors: Neira Fernando Redondo
Published: January 2022

El uso con fines educativos de los modernos medios de comunicación originó siempre expectativas ilusionantes, debate y controversia. Así ocurrió con el cine a principios del siglo XX, cuando se hizo una encendida defensa de su uso en la enseñanza. El presente trabajo se propone estudiar aquel debate. Para ello se lleva a cabo un análisis historiográfico con el cual dar cuenta de una nada desdeñable literatura que, en forma de artículos en prensa especializada o informes de carácter académico, insistió en la necesidad de utilizar el potencial del cine al servicio de la instrucción, considerándolo, así, como una herramienta de gran utilidad para el progreso del país. Si analizamos una muestra de aquella literatura, es posible seguir el hilo que conduce a lo largo de un itinerario histórico a través del cual descubrir los principios pedagógicos que sustentaron aquel fenómeno del cine educativo.
Physico-mechanical characteristics of nanocomposite materials based on fluoroplastic
Authors:   Taras Shevchenko national University of Kyiv, Revo S. L. , Avramenko T. G. ,   Taras Shevchenko national University of Kyiv, Melnichenko M. M. ,   Taras Shevchenko national University of Kyiv, Ivanenko K. O. ,   Taras Shevchenko national University of Kyiv
Published: January 2022

In this work, the elastic and strength properties of polymer composites with a polytrifluorochlorethylene matrix and a thermally expanded graphite filler were evaluated by the nanoindentation method, and the effect of the dispersion and concentration of the filler on the mechanical characteristics of nanocomposite materials was considered. It is shown that the microhardness of nanocomposite materials decreases with increasing filler concentration. An increase in the microhardness and Young's modulus with the growth of filler particles was observed for nanocomposite materials with a filler concentration of 3 vol.%. As for nanocomposite materials with a filler volume fraction of 10 vol.%, similar behavior of the mechanical characteristics was observed with an increase in the dispersion of thermally expanded graphite particles to 180 μm. A subsequent increase in the average particle size of thermally expanded graphite leads to a decrease in Young's modulus and microhardness of composites, which may be associated with different degrees of polymer structuring and the formation of different orientational orders from the filler. The observed changes in Young's modulus and H/E ratio indicate a change in the amorphous crystalline behavior of the composite to that characteristic of fine-crystalline materials and depends on the dispersion of thermally expanded graphite.
Applying Information Technology-Based Knowledge Management (KM) Simulation in the Airline Industry
Authors: Al-Ansi Abdullah M.
Published: January 2022

In previous studies, some of the KM enablers documented include leadership operations in the form of a KM officer, financial aspects, and the organizational culture. On the other hand, the major barrier involves resistance to change due to the traditional culture emphasizing socialization and the establishment of trust before fostering business operations. From the gap analysis, some of the strategies that the Emirates Group could embrace include investing more in training sessions and workshops, designing the KM program in a manner that enables it to protect tacit knowledge from loss, and engaging in virtual team formation to foster an awareness of the value lying in KM program support. In so doing, it is projected that the company’s employee operations will be closely linked or aligned to the leading goals and objectives, upon which desirable degrees of productivity and competitiveness might be achieved. This paper has examined the aspect of knowledge management by gaining specific insights from the context of the Emirates Group. Whereas KM at the firm level comes in the form of articles presentations, reports and memos, group levels have seen KM emerge via an operational information system responsible for guiding the airline company’s daily operations. On the other hand, individual-level KM at this company exists in terms of the exRez software through which travelers can add destination activities, car rentals and hotel rooms to their flights, a process that occurs during online booking. In the future, there is a need for the company to remove the aforementioned barriers or obstacles perceived to stall progress, including organizational silos that are documented to set teams and individuals apart; besides hindering problem identification and solving on a collaborative basis.
Glimpses of 3D Vector based Membrane Photolithography
Authors: Patil Sheetal
Published: January 2022

In optical lithography, decline in the profundity of centre has become an intense issue, alongside the trouble in improving goal. In memory chip creation, the advancement of stage move cover (PSM) innovation is promising to conquer these issues. Notwithstanding PSM innovation, some super-goal lithographic applications have likewise been proposed. In the later methodology, no PSMs are required, in this manner a portion of the challenges concerning cover innovation can be maintained a strategic distance from. Be that as it may, it isn't in every case simple to apply PSM or super-goal advancements to muddled cover designs, for example, for ASIC, chip rationale IC's. For fine occasional examples, a high spatial frequency upgrading channel is utilized with annular enlightenment. With sideways occurrence enlightenments, light shafts which are significantly diffracted by veil examples can go through the viewpoint student, in this way, the band-width of the spatial frequency transmission qualities of the focal point framework is expanded. The student channel smothers the transmission of direct bars concerning the diffracted pillars, improving the picture differentiates in the high frequency locale. Thorough re-enactments run rapidly on a workstation for complex 20 customary and stage moving covers, substrate bleaching, and optical metrology and arrangement issues.
A Minimum Spanning Tree-based Routing Technique of FAT Tree for Efficient Data Center Networking
Authors: Gupta Prachi , Pathak Vibhakar
Published: January 2022

Data centers (DCs) have become the critical and irreplaceable infrastructure to drive this ever-growing trend because of the exponential expansion of Internet services. In general, DC has several data & storage nodes connected by a network that is specially built, called Data Center Network (DCN). DCN functions as a communications backbone also play a significant role in maximizing the operation of DC. However, the infrastructure and operations are very difficult in comparison with the conventional network compared with unique DCN specifications, including a wide range of applications, high power density, and high reliability. In this paper, the Bellmanford MST algorithm is used for FAT-tree-based routing. The main characteristic of the FAT Tree is that the links which are used for connecting nodes from different levels may have different bandwidth. The Bellmanford algorithm used here is the shortest path algorithm which provides a reliable and short path for the route nodes to travel which provides fewer time complexities in data center networking.
Numerical Simulation and Implementation of FBMC System with Low PAPR for Efficient 5G Applications
Authors: Gupta Dr. Sunil Kumar
Published: January 2022

Recently, FBMC (Filter Bank Multi-Transporter) has emerged as an alternative to orthogonal frequencies Division Multiplexing (OFDM) (OFDM). As part of the FBMC strategy, wider ranges of frequencies are now within reach, as well as lower out-of-band (OOB) outflows. Comparatively speaking, The Peak-to-average Power Ratio (PAPR) in OFDM frameworks is still high for FBMC, so this isn't surprising. The FBMC framework has been given some OFDM-based PAPR reduction innovation.. PAPR advancements are reduced in this paper OFDM frameworks employ phase modification (PR) and modified PR (MPR) algorithms as a foundation for their proposed FBMC framework. Simply integrate DFT (Discrete Fourier Transform) Spread range and FBMC-OQAM (Filter Bank Multi-Transporter) into SC-FDMA (Single Bearer Recurrence Division Multiple Entrance). As long as you keep the quadrature sufficiency tweak in check, PAPR (peak normal power proportion), which was formerly negligible, is now much less. Taking advantage of DFT's single-bearer impact, unique approaches can be taken. There should be no problems with the quadrature phase channel in terms of the IQ coefficients for each subcarrier. We use FBMC waveforms to generate DFT augmentation and ITSM conditions, and then select the one with the lowest pinnacle power as a means of further increasing the amount decreased PAPR. Regardless of the number of candidates, the basic count portion, for example, DFT Share with IDFT, only executes once, unlike the typical SI (side data) based PAPR reduction Programs.
An Experimental Study of Various Network Protocols and Understanding its Implementation in Real World
Authors: Morzelona Prof. Romi
Published: January 2022

This paper will explain the medium and set of rules through which data is exchanged during communication in the network. The set of rules which are followed during the implementation of the network for the data communication is called as network protocol. For any network to work efficiently there is need to define certain set of rules and standards which should be followed. There are many layers in a network and each layer will have specific protocol that if followed for the exchange of the data. This paper will explain the types of protocols available, structure of data message, and also the challenges occurring in implementation of the protocols.
Production of gradient intermetallic layers based on aluminum alloy and copper by electron-beam additive technology
Authors:   Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, Chumaevsky A. V. , Panfilov A. O. ,   Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, Knyazhev E. O. ,   Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, Zykova A. P. ,   Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, Gusarova A. V. ,   Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, Kalashnikov K. N. ,   Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, Vorontsov A. V. ,   Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, Savchenko N. L. ,   Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, Nikonov S. Yu. ,   Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, Cheremnov A. M. ,   Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, Rubtsov V. E. ,   Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, Kolubaev E. A. ,   Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences
Published: January 2022

This study presents the results of experimental work on the production and examination of samples of laminated polymetallic products made by wire-feed electron-beam additive technology using the technique of controlled filament feeding into the melt bath. The structure of the products based on M1 copper and AMg5 aluminum alloy combines metallic and intermetallic layers with the presence of a gradient transition between the phases. Inside the layers with a transition structure the distribution of intermetallic phases can be of different types. The microhardness values of the different structural constituents of the samples differ by more than a factor of 16. The mechanical properties of the material of the transition layers are characterized by low strength and low plasticity. In the structure of the intermetallic layers and at the boundary between them the formation of defects in the form of cracks and delaminations is observed.
Application aspects of medications for inhalation at the prehospital stage of medical evacuation
Authors: Ivanov Igor M. , Ivchenko Evgeniy V. , Yudin Mikhail A. , Vengerovich Nikolay G. , Nikiforov Alexander S. , Drachev Igor S. , Stepanov Alexander V.
Published: January 2022

This study aimed to determine the aspects of inhalation application of drugs as medical means of protection against lesions by factors of radiation, chemical, and biological nature at the prehospital stage of medical evacuation. Advantages of inhalation administration of drugs and use of individual inhalers of portable type over parenteral and oral administration methods are described. The existing drugs that are most suitable for inhalation at the prehospital stage of medical evacuation include emergency prevention and treatment of toxic pulmonary edema, analgesics, antiradiation, drugs for arresting radiation primary reaction, agents for accelerated radionuclides elimination, and antibacterial and antiviral agents. This list is conditioned by the rapid achievement of the protective effect of the drug during inhalation, both due to the local action in the area of the entrance gate of the intake of damaging agents and the accelerated absorption and systemic action on target organs. This study presents data on existing and promising inhalation drugs (antidotes for warfare agents, recombinant forms of acetyl- and butyrylcholinesterase) and technical means of their delivery (a metered aerosol inhaler, a metered dry powder inhaler) in the Armed Forces of the European North Atlantic Treaty Organization bloc and the United States for the prevention and treatment of damage e to chemical agents, as well as the prospects of radiomitigator usage (granulocyte-macrophage colony-stimulating factor) by inhalations for acute radiation syndrome treatment and inhalation of complexones of radioactive isotopes. The prospects of inhalation in combination with bronchodilators in the development of acute respiratory failure and toxic pulmonary edema on the background of poisoning with the use of a metered-dose powder inhaler are described. The introduction and use of a metered-dose dry powder inhaler at the prehospital stage of medical evacuation determines the need for its development, taking into account the specifics of the drug usage, as well as the need to unify the dosage form of drugs in combination with one type of inhaler (single-dose or multi-dose).
Pituitary-gonadal system dysfunction in middle-aged men with an uncontrolled asthma
Authors: Kharitonov Mikhail A. , Salukhov Vladimir V. , Kuandykova Marina V. , Rudakov Yuri V.
Published: January 2022

The functional state of the pituitarygonadal system is investigated in 90 middle-aged men with the uncontrolled asthma and 35 healthy volunteers. According to the severity of the disease, the patients were stratified into two groups: moderate and severe. To assess the symptoms of an androgen deficiency and sexual dysfunction, the Aging Males Symptoms and the International Index of the Erectile Function were used. The activity of the pituitarygonadal system was assessed by determining the serum levels of testosterone, sex hormone binding globulin, prolactin, estradiol, luteinizing and follicle-stimulating hormone as well as cortisol. It was found that in patients suffering from asthma, symptoms of androgen deficiency and sexual dysfunction are revealed significantly more often than in the healthy middle-aged men, and the severity of these disorders depends on the severity of the disease. At the same time, in patients suffering from asthma, before the treatment, there was a significant decrease in the serum level of androgens, cortisol, and an increase in the sex hormone binding globulin, luteinizing and follicle-stimulating hormone, depending on the severity of the disease, in comparison with healthy subjects. After the treatment, the levels of sex hormone binding globulin, luteinizing hormone and follicle-stimulating hormone were restored, while the levels of androgens and cortisol remained reduced. A significant decrease in the level of prolactin was detected only after the treatment in patients suffering from a severe asthma. Thus, in middle-aged men with an uncontrolled asthma, symptoms of androgen deficiency, and dysfunction of the pituitarygonadal and reproductive systems are significantly more common than in the healthy individuals of the same age. Moreover, the severity of these disorders is influenced not only by the severity of the asthma, but also by the treatment with the systemic corticosteroids.
Risk factors and circulatory system pathologies in military personnel in the Arctic region
Authors: Kryukov Evgeniy V. , Fisun Alexander Ya. , Halimov Yuri S. , Gaiduk Sergey V. , Agafonov Pavel V.
Published: January 2022

Considering the remoteness of the Arctic region, its harsh climatic and geographical characteristics, complex sanitary and epidemiological situation, and peculiarities of a military labor, circulatory system pathologies are expected to significantly contribute to the morbidity structure of the personnel of the Armed Forces of the Russian Federation in the Arctic region. A comparative analysis of the occurrence of cardiovascular risk predictors such as: dyslipidemia, tobacco smoking, high blood pressure, abdominal obesity, negative psychosocial factors, poor diet, alcohol consumption, physical inactivity, individual signs of atherosclerosis, and circulatory system diseases in the servicemen of the Arctic region, and temperate climate was performed. The results of the analysis revealed that military service in the climatic and geographic conditions of the Arctic zone is associated with a higher prevalence of the negative psychosocial factors, diet disorders, bad habits, and an arterial hypertension. Negative psychosocial factors included: stress, increased anxiety, and the depression, which are explained by the remoteness and limited communication in the Arctic region and the mainland, poor prospects for the professional career growth and high-quality training of the family members, monotony, and low availability of the leisure activities. The higher prevalence of an arterial hypertension among the arctic servicemen was caused by the newly diagnosed arterial hypertension and a history of arterial hypertension. In a significant proportion of arctic servicemen, low-density lipoprotein values exceed the target values, which ensure the prevention of the atherosclerosis and its complications. This may contribute to the development of the hypertension and coronary heart disease, and requires a more careful selection of servicemen in the Arctic region with mandatory in-depth examinations of the circulatory systems and metabolism, including the electrocardiography, echocardiography, treadmill test, ultrasonography of the brachiocephalic arteries with the determination of the thickness of the intimamedia complex, sphygmomanometer, and determination of the rigidity and biological age of the blood vessels, lipid profiling, and fasting glycemia.