bluuebunny/crossref_metadata_2025 huggingface dataset:
Functional results of compound extra articular tibial pilon fractures managed with hybrid external fixator
Authors: Raina Gagandeep Singh , Gupta Sanjeev , Azharuddin Mohammad , Lone Zubair A. , Kumar Manoj
Published: April 2021

Background: Distal tibia fractures are difficult to treat. It is often difficult to assess the potential risk of surgical complications because of the variations in the clinical findings. Less subcutaneous tissue, limited blood supply and no muscle insertions are the factors that tend to make the healing of the soft tissue more complex. Compounding presents a great challenge for the treating surgeon regarding the treatment options.

Methods: A total of 23 patients were included in the study based on the inclusion and exclusion criteria and were managed by hybrid external fixator as definitive treatment. They were kept in follow up for at least 6 months and were assessed using Ovadia and Beal’s objective and subjective scoring.

Results: All patients achieved fracture union with 82% patients reporting excellent to good functional outcome. Pin site infections and ankle stiffness were most common complications.

Conclusions: A very good outcome is achieved in compound extra articular tibial pilon fractures with the hybrid fixator technique. Adequate stability is provided and hence early motion and ambulation can be started.
Unraveling the Network of the Extractive Industries
Authors: Balza Lenin H. , De Los Rios Camilo , Guerra Alfredo , Herrera-Prada Luis , Manzano Osmel
Published: April 2021

This paper analyzes extractive industries in Colombia and their connections to other economic activities in the country. We use detailed social security data on all formal employees to create an industry-relatedness measure using labor flows between industries. Drawing on the vast network analysis literature, we exploit centrality measures to reveal the importance of the extractive sector among Colombian industries. Our results show that extractive industries are well connected within the Colombian industrial network, and that they are central overall and within their clusters. We also find that extractive industries have stronger linkages with manufacturing and agriculture than with other sectors. Finally, a higher relatedness to extractive activities is correlated with lower levels of employment, specially of female workers.
Comunicación e innovación en las prácticas educativas, caso de estudio: experiencias de la campaña “Recicla Esperanza”
Authors: Falconí Jaramillo Gabriela , Cusot Cerda Gustavo , Enríquez Cruz María José , De la Torre María José
Published: April 2021

Esta investigación propone aplicar una metodología innovadora, basada en prácticas reales, para acercar al estudiantado a las organizaciones, y transferir conocimientos y prácticas en el ámbito de la comunicación estratégica y las relaciones públicas en todas sus dimensiones. Para llevar a cabo esta metodología, el artículo expone el diseño y ejecución de la campaña “Recicla Esperanza”, que se basa en dos aspectos que dan soporte a este artículo: el primero sobre los resultados de aprendizaje de la asignatura de Relaciones Públicas 1 y su conexión con otras materias de la carrera de Comunicación, y el segundo, relacionado con la búsqueda del bien; en este caso nos referimos a la problemática que viven los recicladores y recicladoras de basura en la ciudad de Quito. Para fundamentar esta metodología de enseñanza, la revisión teórica se basó en innovación educativa, comunicación estratégica, relaciones públicas y responsabilidad social. El propósito es demostrar los resultados de esta metodología de enseñanza y los beneficios que acarrea para los estudiantes y para la sociedad en general; así como para la mejora constante del currículo académico.
“Ciencia al Rescate”: descubre el científico que hay en ti
Authors: Ayala Andrea , Hidrobo Alexis
Published: April 2021

Es muy conocido que la curiosidad es el motor del aprendizaje. Esta conlleva a la creatividad y permite desarrollar ideas, habilidades y formas de solucionar un problema. La curiosidad y la creatividad no son correctamente valoradas en la educación tradicional, por lo que esta debe modificarse. Una alternativa es permitir que el niño se plantee interrogantes al observar un fenómeno y busque responder sus inquietudes explorando el mundo que lo rodea. En este sentido, “Ciencia al Rescate” es un proyecto de vinculación de la USFQ que busca recuperar la capacidad de exploración de niños y jóvenes, a través de experimentos, la lectura divertida o videos centrados en ciencias exactas y naturales. Profesores de distintas instituciones educativas, organizaciones y el Ministerio de Educación ya utilizan este material. El objetivo del proyecto es sembrar amor por la ciencia desde tempranas edades y fomentar la curiosidad, estimulando así el gusto por aprender y entender la ciencia y sus desarrollos.
miREIA - an immunoassay method in assessment of microRNA levels in tumor tissue-pilot study. The impact of miR-93-5p, miR-142-5p and IFNγ on PD-L1 level in colorectal cancer
Authors: Dawidowicz Miriam , Kula Agnieszka , Mielcarska Sylwia , Kiczmer Paweł , Gołąbek Karolina , Ostrowska Zofia , Waniczek Dariusz , Świętochowska Elżbieta
Published: April 2021

Colorectal cancer is the second and third most common cancer in females and males, respectively. The PD-L1/PD-1 immune checkpoint is an important source of immunosuppression in the tumor microenvironment and is associated with IFNγ. Recent studies have revealed that a significant number of tumor suppressive miRNAs can regulate the expression of PD-L1.               
The objective quantification of selected microRNAs using the miREIA method in CRC tissue was performed. We investigated the roles of miR-93-5p and miR-142-5p expression and the levels of IFNγ in regulating the expression of PD-L1 in tumor and margin tissues of CRC in relation to the histological grade, TNM classification, and tumor localization.
37 samples of tumor and margin tissues from CRC patients were evaluated. MiR-93-5p and miR-142-5p levels were measured by a method for quantitative measurement of human microRNA (miREIA). The concentrations of PD-L1 and IFNγ were determined by the ELISA kit.
We found higher concentrations of miR-93-5p, PD-L1 and IFNγ in tumor samples compared to tumor margin samples. A significant correlation was found between PD-L1 and IFNγ in tumor and margin specimens; between miR-142-5p and miR-93-5p levels  in tumor and margin specimens. A higher level of miR-93-5p was found in tumor margin tissues on the left side of the colon. Patients with distant metastases were characterized by higher miR-93-5p concentration compared to patients without metastases.
CRC is an important source of PD-L1, IFNγ and miR-93-5p expression. Understanding the mechanisms underlying intratumoral PD-L1 expression may open new opportunities for targeted immunotherapy for colorectal cancer.
Comparison of conventional IVF versus ICSI in non-male factor, normoresponder patients
Authors: Eftekhar Maryam , Mohammadian Farnaz , Yousefnejad Fariba , Molaei Behnaz , Aflatoonian Abbas
Published: April 2021

Conventional IVF and ICSI are two common techniques to achieve
fertilization. IVF has long been used for treatment of infertility, although it is not an
effective treatment in severe male infertility. The use of ICSI has been expanded in
severe male factor and fertilization failure after IVF cycle. In spite of the widespread
use of ICSI in patients with non-male factor infertility, there is still little evidence to
confirm its effectiveness in this population
INFLUENCE OF INVESTMENT DECISIONS AND CONSUMPTION ON ASSET PRICING: CCAPM APPROACH
Authors: Ullah Mahboob , Shaikh Samiuddin , Channar Paras , Abbas Muhammad , Shaikh Maria
Published: April 2021

Purpose of the study: This study examines the influence of investment decisions and consumption on asset pricing from 1980 to 2016.

Methodology: This study has used a quantitative research design and a secondary source is deployed to collect data from 1980 to 2016. The data was gathered from Saint Louis Fed, whereas Standard and Poor’s 500 (S&P 500 index at a closing price of the first day of the month) was from Yahoo Finance. The software used for the data analysis was R Studio and statistical methods such as descriptive statistics, Generalized Method of Moments (GMM) model Fitting and Consumption Capital Asset Pricing Model (CCAPM) Fitting was performed to examine the influence of investment decisions and consumption on asset pricing.

Main Findings: The finding of the study shows that Personal Consumption Expenditures: Nondurable Goods (PCE): Nondurable goods, (PCEN) and 1-Year Treasury Constant Maturity Rate (GS1) jointly accounted for about 7.9% of the variance observable in excess return SP500. Furthermore, independently, GS1 (annualized 1-Year Treasury Constant Maturity Rate) was significant while PCE (Personal Consumption Expenditures: Nondurable Goods) and PCEN: Nondurable goods were insignificant.

The implication of the Study: The current study is useful for investors and especially fund managers across the globe to determine what return they expect on their investment for putting their capital at risk on it.

Novelty/Originality of this study: Studies have been conducted to analyze the impact of investment decision based on the CAPM model, whereas this study introduces the influence of investment decisions and consumption on asset pricing by deploying the CCAPM approach which is an extension of the capital asset pricing model that uses a consumption beta instead of a market beta to explain expected return premiums over the risk-free rate.
Assessment of the Immunogenicity and Protective Aspects of a DNA Vaccine Targeting Crimean Congo Hemorrhagic Fever Virus Glycoprotein Gc
Authors: SAHİN Ergin , ÇÖLERİ CİHAN Arzu , ALİGHOLİPOUR Touraj , FOLDES Katalin , ENGİN Evren Doruk , ÖZKUL Aykut
Published: April 2021

Aim: Crimean Congo Hemorrhagic Fever (CCHF) is a lethal, endemic infectious disease in human. For the preventive measures of the disease, there is currently no safe and efficient vaccine, widely for human use. Vaccine development for CCHF virus is an actively researched subject. In this study, we aimed to investigate the immunizing and protective potentials of the CCHF virus surface glycoprotein Gc that is delivered as a single antigen via a DNA based vaccine vector.
Material and Methods: A DNA based vaccine targeting the immunogenic envelope glycoprotein Gc of a CCHF virus isolate with Turkey origin (Ank2) was generated and its immunogenicity and protective capability against lethal challenge in IFNα/βR-/- receptor knock out mice was assessed.
Results: The developed vaccine candidate (pGc) elicited a considerable amount of neutralizing antibody responses in the vaccinated mice. The vaccine candidate significantly induced both antiviral Th1 and B cell activating Th2 immune responses deduced from the cytokine production profiles in the vaccinated mice. However, despite the immune responses elicited post-immunization, the vaccine failed to confer protection against lethal CCHF virus infection.
Conclusion: To the best of our knowledge, this is the first report of a DNA vaccine candidate generated against CCHF virus based on the glycoprotein Gc. The pGc vaccine candidate exhibited antigen-specific immunity in IFN/α/βR-/- mice, but was unable to produce a protection upon lethal challenge with the homologous CCHF virus. Once we comprehensively understand the immune correlates of protection, we will be more eligible to significantly improve the efficacy of vaccines.
Noise-Immune Network Layer of the Protocol Stack for a Wireless Sensor Network of a Tree Topology
Authors: Makashov A.A. , Terentiev M.N.
Published: April 2021

The paper presents the network layer of the protocol stack in wireless sensor networks. This stack makes it possible to implement wireless sensor networks of a tree topology, which are able to function in the presence of noise. We state the requirements for the network layer and propose a development to the keep-alive mechanism that forms the basis of the network recovery subsystem. We present a functional flow block diagram of the network layer proposed and its model based on the ns-3 simulator. We also describe the noise model. Our simulation allowed us to estimate how noise interferes with the network operation and to show that the network layer of the protocol stack for a wireless sensor network featuring a network recovery mechanism is efficient in the presence of noise
Simulation Model of an Adaptive Control System for a Segmented Deformable Mirror in a Space Telescope and its Metrological Certification
Authors: Sychev V.V. , Klem A.I.
Published: April 2021

The paper concerns a measurement problem of identifying inadequacy in a mathematical model of an adaptive control system driving segments of a deformable mirror in a large telescope. This is necessary to assess the validity of this model. A dual-axis servo drive unit utilising permanent magnet synchronous machines controls the mirror segments. The servo unit rotates each segment of the deformable mirror with respect to its axis of symmetry and tilts each segment relative to the fixed central reference segment. The paper provides general descriptions of the model structure and the feedback in the current control loop employing phase current measurement and coordinate transformations. We present initial data sets for metrological certification of the model. We used the MMK-stat M software to perform the metrological certification so that we could check empirical equations, determine the scope of application for the model and validate it. The metrological certification allowed us to confirm that the model of an adaptive control system for a segmented deformable telescope mirror is valid, and to find the model structure that ensures a more accurate description of the measurement problem that concerns controlling the spatial position of the object simulated
Research of the Rhombic Mechanism Kinematics
Authors: Timofeev G.A. , Kataev I.Z. , Samsonenko D.M.
Published: April 2021

Designing modern mechanisms and machines is a very complex and iterative process. One of its first stages is the kinematic analysis of mechanisms followed by structural, dynamic, kinetostatic, etc. The scheme of an asymmetric rhombic mechanism with a developed drive arm of the working group is investigated. The kinematics of the characteristic links points of this mechanism is considered: their kinematic pairs and centers of mass. The kinematics of points and links of this mechanism is considered. The main dependencies for determining the analogs of the velocities and accelerations of points and links of the mechanism are presented. To solve the kinematics tasks the Zinoviev’s method of vector contours was used. The results of the kinematic analysis can be used for dynamic and kinetostatic research of the asymmetric rhombic mechanism with a developed drive arm of the working group, as well as for optimization synthesis of its design.
A argumentação como prática discursiva: por uma abordagem lato sensu no ensino básico
Authors: Corbari Alcione Tereza
Published: April 2021

Este artigo visa a refletir sobre a abordagem da argumentação no ensino básico, focando livros didáticos voltados ensinos Fundamental e Médio. Sem desconsiderar a importância da argumentação stricto sensu como conteúdo de ensino da disciplina de Língua Portuguesa, este texto argumenta sobre a necessidade de garantir a noção lato sensu de argumentação como tópico curricular básico dessa disciplina. Essa proposta fundamenta-se na teoria ducrotiana da argumentatividade inscrita na língua e considera que a interação pela linguagem constitui um ato social que é, em essência, argumentativo, o que significa compreender a argumentação como prática social e discursiva intrínseca ao uso da língua, portanto, não restrita a contextos específicos de interação.Palavras-chave: Argumentação. Língua Portuguesa. Ensino Básico.Argumentation as discursive practice: for a lato sensu approach in basic education ABSTRACT This article aims to present some reflections on teaching argumentation in basic education, considering the treatment of this theme in Elementary and Secondary textbooks. Despite the importance of argumentation in stricto sensu as content in Portuguese Language teaching, this text argues that the argumentation in lato sensu must figure as a basic curricular topic of this discipline. This proposal is based on the Theory of Argumentation within Language and considering that the interaction by language constitutes a social act that is essentially argumentative, which means to comprehend argumentation as social and discursive practice intrinsic to the language uses, not restricted to specific interaction contexts.Keywords: Argumentation. Portuguese Language subject. Basic Education.Argumentación como práctica discursiva: para un enfoque lato sensu en educación básicaRESUMENEl propósito de este artículo es presentar algunas reflexiones sobre la enseñanza de la argumentación en la educación básica, centrando-se en libros de texto de la escuela primaria y secundaria. A pesar de la importancia de la argumentación en stricto sensu como contenido en la enseñanza de la lengua portuguesa, este texto argumenta que la argumentación en lato sensu debe figurar como un tema curricular básico de esta disciplina. Esta propuesta se basa en la teoría de la argumentación dentro del lenguaje y considera que la interacción por el lenguaje constituye un acto social esencialmente argumentativo, lo que significa comprender la argumentación como práctica social y discursiva intrínseca a los usos del lenguaje, no restringida a contextos de interacción específicos.Palabras clave: Argumentación. Lengua portuguesa. Educación Básica.
Gene Action Studies in Cowpea Inbreds and Hybrids with Varying Levels of Heterosis
Authors: Lovely B. , Kumar V.
Published: April 2021

Background: Cowpea is an important pulse crop grown worldwide that fits well in a variety of cropping systems. Improvement in yield and related characters along with reduced duration are desirable traits in this crop. The study of heterosis reveals the type of gene action involved which enables the plant breeder to adopt suitable breeding methodology for its improvement. Methods: The present investigation was carried out with 10 parent partial diallel design to analyse the gene action and estimate of heterosis with respect to nine yield related traits in cowpea. Result: Highly significant variances observed for all the traits indicated that hybrids and parents were different from each other for the traits under study and that variability in the breeding materials was attributed to additive and non-additive gene effects. Perusal of the data revealed significant positive heterosis for all yield related traits and significant negative heterosis for days to 50% flowering indicating earliness. Among the twenty five crosses studied, VS9 x VS43, VS24 x VS45 and VS44 x VS47 had significant heterosis for maximum number of characters. Both gca and sca variances were significant for all the characters indicating both additive and non-additive gene actions controlling the various traits. The additive variance was much higher than dominance variance for the characters days to 50% flowering, pod length, pod breadth, pod weight, pods per plant and cluster, pod yield per plant, seeds per plant and length of harvest period suggesting the preponderance of additive gene action.
Fumigant Activity of Four Plant Powders against Cowpea Weevil, Callosobruchus maculatus (Fabricius) (Coleoptera: Chrysomelidae) in Stored Adzuki Bean
Authors: Mario Muhammad Bayu , Astuti Ludji Pantja , Hsu Jue-Liang , Kafle Lekhnath
Published: April 2021

Background: Cowpea weevil, Callosobruchus maculatus (Fabricius) (Coleoptera: Chrysomelidae) is one of most common species pest that attack various types of beans in the storage. Plant-based insecticides are considered as good candidates as alternatives to methyl bromide and phosphine for controlling pest in storage. Plenty of reports about plant powder as grain protectant, conversely a little information on plant powder as fumigant had been reported. This study was designed to observe the effects of plant powders of clove, holy basil, lemongrass and turmeric as fumigant on the biological parameters of C. maculatus under laboratory conditions. Methods: Experiments were conducted on plant powders against biological parameters of cowpea weevil. No choice test method was followed to assess the bioefficacy of the four natural fumigants on adult longevity, fecundity, F1 progeny, bean damage and weight loss of bean under completely randomized design (CRD). Result: Fumigant toxicity of four plant powders (clove, holy basil, lemongrass and turmeric) varied amongst doses. Clove powder showed significantly lower adult longevity, fecundity of female, number of F1 progeny, bean damage and weight loss of bean at 1 g and 3 g dose per container. Major volatile organic compounds (VOCs) in clove powder were eugenol (48.64%) and caryophyllene (43.09%) identified by solid phase microextraction followed with gas chromatography and mass spectrometry (SPME-GC/MS). These two major constituents might explain the fumigant toxic activities of clove powder towards C. maculatus biological parameters.
Influence of the diet on the composition of the earthworm Eudrilus eugeniae
Authors: Byambas Patrick , Douny Caroline , Moula Nassim , Scippo Marie-Louise , Hornick Jean-Luc
Published: April 2021

The earthworm Eudrilus eugeniae is a well-known source of protein in animal feeding but there is lack of information on its fatty acid profile. This study aimed to determine its nutrient components and fatty acid profile. Earthworms were bred in substrate containing organic matter; peanut powder was added in the experimental group diet. The nutrient components (protein, ash, and minerals) of the adult worms were determined according to the Kjeldahl method and by atomic absorption spectrophotometer. The fatty acid profile was determined by gas chromatography / mass spectrometry. The dry-matter protein content significantly increased in worms fed peanut powder (p < 0.05) as did the minerals measured. The main fatty acid families had similar proportions in the groups. In the saturated fatty acids, C12:0 and C18:0 were present in higher proportions in both groups, whereas in monounsaturated fatty acids, C18:1ω9 prevailed. Significant differences (p < 0.05) in polyunsaturated fatty acids were observed between the two groups. An increase in the proportion of ω6 and ω3 was observed in the experimental group compared to the control. This study showed that peanut powder significantly influenced nutrient components of E. eugeniae. The fatty acid profile of this species was similar to that of most animals. Earthworms’ diet can be altered to improve the nutritional value of E. eugeniae.
Typologie des élevages de dindons au sud du Bénin
Authors: Dotché Ignace Ogoudanan , Baba Loukyatou Issimouha , Okambawa Lionel Florent , Koffi Monique , Adebo Nasser , Youssao Abdou karim Issaka
Published: April 2021

L’élevage de dindons est pratiqué dans tout le pays mais il est moins développé que celui d’autres volailles. Le but de l’étude était de caractériser cet élevage. Les données ont été collectées lors d’une enquête rétrospective dans 83 élevages au Sud Bénin. La procédure Proc corresp du logiciel SAS a permis d’identifier trois groupes d’éleveurs : le groupe 1 composé de personnes de niveau du secondaire ayant pour activités l’élevage et l’artisanat ; le groupe 2 comprenant des personnes non scolarisées ou de niveau du primaire ayant pour activités le commerce et l’agroélevage ; et le groupe 3 incluant des fonctionnaires ou des salariés ayant un niveau universitaire. La majorité des enquêtés disposait de logements de type amélioré ou traditionnel pour les volailles. L’alimentation des dindons était davantage basée sur les provendes dans les groupes 1 et 3 que dans le groupe 2. Les céréales, les sous-produits agricoles et les résidus de cuisine étaient utilisés par la majorité des éleveurs du groupe 2. L’incubation naturelle sous la dinde ou la poule était pratiquée par tous les éleveurs. Les difficultés auxquelles étaient confrontés les éleveurs étaient les maladies, les mortalités, les accidents, les prédateurs et le manque de marché. Les prédateurs et les accidents ont été plus souvent rapportés dans les groupes 1 et 2 que dans le groupe 3. Les dindons étaient surtout vendus pendant les fêtes de fin d’année dans tous les groupes. Le prix de vente des dindons était plus élevé dans le groupe 3 que dans le groupe 2 où les produits coûtaient plus cher que dans le groupe 1. Dans l’ensemble, l’élevage de dindons était de type semi-amélioré dans le groupe 1 et 3, et traditionnel dans le groupe 2. Il doit être amélioré pour le rendre plus compétitif.
Caractérisation biométrique du Chameau de la steppe (Camelus dromedarius ) en Algérie
Authors: Babelhadj Baaissa , Guintard Claude , Benaissa Atika , Thorin Chantal
Published: April 2021

Cette étude a été menée sur des dromadaires vivants algériens Naili encore appelés Chameaux de la steppe. L’objectif était de caractériser les mensurations et la barymétrie de cette population qui n’a pas encore été étudiée et de les comparer à deux autres populations algériennes, la Sahraoui et la Targui. L’échantillon comprenait 60 dromadaires, 30 mâles et 30 femelles adultes de plus de cinq ans qui pâturaient dans les régions semi-arides du nord de Biskra en Algérie. Cinq mensurations ont été faites, puis l’indice (de vide) sous-sternal et le poids vif ont été calculés. Les valeurs moyennes ont été respectivement chez les mâles et chez les femelles de 551,2 kg ± 58,7 kg et 482,6 kg ± 60,0 kg pour le poids vif, de 0,92 m ± 0,05 m et 0,83 m ± 0,08 m pour le vide sous-sternal, de 0,92 m ± 0,05 m et 0,88 m ± 0,04 m pour la profondeur thoracique, et de 1,02 ± 0,09 et 0,94 ± 0,11 pour l’indice sous-sternal. Une analyse multivariée a permis de séparer les mâles des femelles et de les comparer aux populations Sahraoui et Targui. Le Chameau de la steppe se différencie nettement de ces populations par sa plus petite taille. Cette étude montre également que les chamelles sont un peu plus petites et moins élancées que les mâles. Cette population rustique est associée à un ensemble de pratiques alimentaires, elles-mêmes liées à la qualité des parcours dont l’influence sur le développement morphologique des animaux a été largement décrite.
Indemnización por ejecución de medidas cautelares en el arbitraje comercial doméstico peruano
Authors:   , Robles Meza María Angélica
Published: April 2021

El propósito del presente trabajo es explorar lo establecido a través del numeral 8 del artículo 47 de la ley que regula el arbitraje, Decreto Legislativo N° 1071, en específico, la facultad que se le otorga al tribunal arbitral de determinar que una medida cautelar no debió haberse otorgado, y que en tal caso, éste requiera al solicitante el pago por los daños que la medida haya provocado, siempre que el tribunal arbitral sea competente. Sobre esta disposición legal, surgen diferentes interrogantes en relación a su interpretación como, si esta facultad excede o no de lo pactado por las partes al celebrar un convenio arbitral que señala que aquellas controversias que deriven de determinada relación jurídica se resolverán a través de arbitraje, si es otorgada a pedido de parte o de oficio y cuál es el procedimiento para dilucidar dicha controversia. Para lograr dar respuesta a la interrogante, se investigará sobre el convenio arbitral, la competencia de los tribunales arbitrales para resolver conflictos, medidas cautelares, interpretación, entre otros. Luego de ello, propondremos hipótesis que respondan a las preguntas señaladas en el párrafo anterior. Por último, en relación al método que se utilizará en la investigación será de carácter descriptivo, según el nivel de complejidad de estudio y cualitativo por el tipo de análisis de la información.
Controlling u hotelskom poduzeću
Authors: Avelini Holjevac Ivanka
Published: April 2021

Rezultate istraživanja treba shvatiti kao doprinos formiranju naše nove suvremene ekonomske terminologije iz područja upravljanja, konkretno upravljanja poslovnim rezultatom, kao i iniciranje promjena u upravljanju i organizaciji poduzeća. Controlling kao instrument upravljanja ima veliko značenje za uspješnost poslovanja hotelskih poduzeća i zavređuje posebnu pažnju.
Sociokulturni profili turista ’94
Authors: Banovac Boris
Published: April 2021

Autor u članku interpretira rezultate empirijskog istraživanja provedenog u tijeku turističke sezone ’94. na području Iste, Cresa i Lošinja. Glavna pažnja je usmjerena na analizu tipologije turista. U tom smislu istraživanje sociokulturnih profila turista provedeno je pomoću više grupa varijabli: 1. ranija turistička putovanja; 2. očekivanja od turističkog putovanja; 3. aktivnosti turista; 4. potrošnja turista. Na temelju rezultata istraživanja autor zaključuje da tipologija turista koji dolaze na spomenuto područje predstavlja važan element kako za osmišljavanje strategije turističkog razvoja, tako i za donošenje praktičnih odluka glede definiranja turističke ponude za sljedeću turističku sezonu.
Sintagme s funkcionalnim glagolima u njemačkom poslovnom dopisivanju u turizmu
Authors: Blažević Nevenka
Published: April 2021

Sintaktičke konstrukcije poput Anwendung finden, Antwort geben, itd. odnedavno privlače sve veću pažnju njemačkih lingvista. Sintagme s funkcionalnim glagolima (Funktionsverbgefüge), što je naziv ovih konstrukcija, sastoje se od funkcionalnog glagola i nominalnog dijela, koji zajedno tvore semantičku cjelinu i izražavaju predikat. U ovom radu navode se najfrekventnije sintagme s funkcionalnim glagolima u njemačkom poslovnom dopisivanju u turizmu i objašnjava njihova funkcija, te motivi upotrebe.
Neuroscience and Literacy: An Integrative View
Authors: Ellis George F R , Bloch Carole S
Published: April 2021

Significant challenges exist globally regarding literacy teaching and learning, particularly in poor socio-economic settings in countries of the Global South. In this paper we argue that to address these challenges, major features of how the brain works that are currently ignored in the educational literature should be taken into account. First, perception is an active process based in detection of errors in hierarchical predictions of sensory data and action outcomes. Reading is a particular case. Second, emotions play a key role in underlying cognitive functioning. Innate affective systems underlie and shape all brain functioning, including oral and written forms of language and sign. Third, there is not the fundamental difference between listening/speaking and reading/writing often alleged on the basis of evolutionary arguments. Both are socio-cultural practices driven and learnt by the communication imperative of the social brain. Fourth, like listening, reading is not a linear, bottom-up process. Both are non-linear contextually shaped psycho-social processes of understanding, shaped by current knowledge and cultural contexts and practices. Reductionist neuroscience studies which focus on decontextualized parts of reading cannot access all the relevant processes. An integrated view of brain function reflecting this non-linear nature implies that an ongoing focus on personal meaning and understanding provides positive conditions for all aspects of literacy learning. Assessment of literacy teaching at all its stages should include indicators that take into account these foundational features relating reading and writing to neuroscience.
Concept of Gravito-Rotational Acceleration and its Consequences for Compact Stellar Objects
Authors: Hassani Mohamed
Published: April 2021

In a previous series of papers relating to the Combined Gravitational Action (CGA), we have exclusively studied orbital motion without spin. In the present paper, we apply CGA to any self-rotating material body, i.e., an axially spinning massive object, which itself may be locally seen as a gravito-rotational source because it is capable of generating the gravito-rotational acceleration, which seems to be unknown to previously existing theories of gravity. The consequences of such an acceleration are very interesting, particularly for Compact Stellar Objects. Independently of the equation of state, it is found that the critical and maximum internal magnetic field strength of a stable neutron star cannot exceed the value of 3x1018G.
Development of a Low Cost Wireless Sensor Network for Surveillance Along Kenya-Somalia Border
Authors: Karanja Simon , R.A Badru
Published: April 2021

Surveillance along the Kenya-Somalia border has been a big challenge that has continuously puzzled the security personnel, due to insurgency of armed militia Al-Shabaab from Somalia , the Kenyan government proposed construction of a barrier wall. This project developed a low cost wireless sensor network surveillance system to be deployed along the Kenya-Somalia border. The research study utilized two PIR sensor for detecting human intrusion, one motion is detected the sensor transmit the data via an Xbee module. Arduino microcontroller was used to process the data collected by the sensor before transmission. The system developed has two units, the Transmitter unit and a User Graphic interface running on Tuna Term software that displays the received data. During testing, the prototype system detected human intrusion, using the Arduino serial monitor the results were displayed before being package for transmission.
Sars-Cov-2 Wastewater Surveillance for Public Health Action: Connecting Perspectives From Wastewater Researchers and Public Health Officials During a Global Pandemic
Authors: McClary-Gutierrez Jill , Mattioli Mia , Marcenac Perrine , Silverman Andrea , Boehm Alexandria , Bibby Kyle , Balliet Michael , de los Reyes III Francis , Gerrity Daniel , Griffith John , Holden Patricia , Katehis Dimitrios , Kester Greg , LaCross Nathan , Lipp Erin , Meiman Jonathan , Noble Rachel , Brossard Dominique , McLellan Sandra
Published: April 2021

Wastewater surveillance for SARS-CoV-2 has garnered extensive public attention during the COVID-19 pandemic as a proposed complement to existing disease surveillance systems. Over the past year, environmental microbiology and engineering researchers have advanced methods for detection and quantification of SARS-CoV-2 viral RNA in untreated sewage and demonstrated that the trends in wastewater are correlated with trends in cases reported days to weeks later depending on the location. At the start of the pandemic, the virus was also detected in wastewater in locations prior to known cases. Despite the promise of wastewater surveillance, for these measurements to translate into useful public health tools, it is necessary to bridge the barriers between researchers and the public health responders who will ultimately use the data. Here we describe the key uses, barriers, and applicability of SARS-CoV-2 wastewater surveillance for supporting public health decisions and actions. This perspective was formed from a multidisciplinary group of environmental microbiology, engineering, wastewater, and public health experts, as well as from opinions shared during three focus group discussions with officials from ten state and local public health agencies. The key barriers to use of wastewater surveillance data identified were: (1) As a new data source, most public health agencies are not yet comfortable interpreting wastewater data; (2) Public health agencies want to see SARS-CoV-2 wastewater data in their own communities to gain confidence in its utility; (3) New institutional knowledge and increased capacity is likely needed to sustain wastewater surveillance systems; and (4) The ethics of wastewater surveillance data collection, sharing, and use are not yet established. Overall, while wastewater surveillance to assess community infections is not a new idea, by addressing these barriers, the COVID-19 pandemic may be the initiating event that turns this emerging public health tool into a sustainable nationwide surveillance system.
Awareness of Adverse Health Effects of Silica Dust Exposure Among Stone Quarry Workers in Ghana
Authors: Ahadzi Dzifa Francis
Published: April 2021

Background: Work experience is a key factor that influences safety awareness among workers. This study investigated the influence of work experience on the level of awareness on adverse health effects of silica dust exposure among stone quarry workers in Ghana while controlling for theoretically relevant compositional and contextual factors, evaluated the magnitude and order of association between the predictors and the predicted variable. Method: A cross-sectional survey data of 524 randomly selected stone quarry workers were subjected to multivariate statistical analyses. Results: Stone quarry workers who had 6 to10 years and more than 10 years of work experience were 48% (OR = 1.475, P = 0.021) and 82% (OR = 1.816, P = 0.003) respectively more likely to be aware of the adverse health effects of silica dust exposure compared to their counterparts who had 1 to 5 years work experience. Conclusion: These findings provide relevant information for managers and policymakers to plan and maximize awareness on silica dust health hazards among silica exposed workers.
Ideation for New Ventures: The Reasonings-Outcomes Matrix, Models and Tools
Authors: Russ Meir
Published: April 2021

The paper summarizes in a step by step ‘recipe’ format a model of developing new ideas (Ideation) that can be used to form a new venture or develop a new product. The proposed ‘recipes’ are widely used and can be applied in tandem with other prevalently available models or tools. The intention of the paper is also to serve as a resource for entrepreneurs and innovators, and the links and references munificently used in the paper are serving this purpose. The author has used the outline and the tools described here in numerous Ideation classes taught for over a decade in several countries around the world. The paper’s intention is not to conduct a systematic review on the subject of new venture creation or propose new research agenda (for that, see for example Shepherd et al., 2021). The purpose is to provide an effective and efficient set of tools, models and techniques that can assist the entrepreneur in her journey to create and achieve her dreams. One such tool is the matrix of Reasonings-Outcomes introduced here for the first time.
Optical Intensity Far-Field Distribution of MEMS Micro-mirror Arrays by Fraunhofer Diffraction
Authors: Zhang Bin , Zhang Yu , Yang Guohui , Wang Chunhui
Published: April 2021

Compared with liquid crystal clad waveguide, MEMS mirror has some merits, such as high-er-transmissivity, lager-angle of scanning, faster scanning speed and so on. Furthermore, MEMS mirror arrays perform more superior than MEMS mirror when they steer laser beam, which make MEMS arrays much more suitable to be used in devising compact Lidar. Before assembling a Lidar with MEMS arrays, the optical intensity and distributions of the laser diffracted by MEMS arrays should be analyzed, but few published papers about this issue are available so far, this paper will focus on this issue about MEMS arrays. Firstly, the complex amplitudes of laser which is diffracted by 1-D and 2-D arrays are presented, respectively. Then the optical intensity and distributions on the observation plane are presented. Finally, the simulation diagrams of these distributions are shown, and the correctness of the results is indirectly verified by Young’s dou-ble-slit experiment. The results gotten in this letter are essential to design a compacted Lidar based on MEMS arrays.
A Network Intrusion Based Detection System for Cloud Computing Environment
Authors: Zaidi Taskeen
Published: April 2021

Cloud computing is an emerging area which provide on demand computing resources and services through internet. It is faster and efficient technique but prone to severe security attacks. In this paper author have proposed a Network Intrusion Detection System (NIDS) to detect attacks at front end and backend when bulky flow of data packets flowing in a cloud environment. In our framework we used Signature based detection system for identifying the intruder and the Anomaly based detection system for detecting network attacks. The NIDS sensors were placed in a collaborative manner to prevent the attacks and to update the knowledge bases. Author have used supervised learning model to detect abnormal behavior of packets from network traffic. The dataset were trained and tested in terms of precision, recall, accuracy and model build time to select the best machine-learning model for detection of intruder and to improve the computational time and performance.
Stochastic Cosmology and the Vacuum Energy Parameter
Authors: Goldfain Ervin
Published: April 2021

The Vacuum Energy Parameter (VEP) of standard cosmology denotes the fraction of the critical density attributed to the accelerated expansion of the Universe. Astrophysical evidence sets the numerical range of VEP at 0.692 +, - 0.012, yet the root cause of these values is currently unknown. Drawing from the stochastic interpretation of early-Universe cosmology, we develop here a derivation of the VEP based on classical diffusion theory and the Langevin equation. Predictions are shown to be in reasonable agreement with observations.
Successful Arthroscopic Fixation of a Posterior Wall Acetabular Fracture Nonunion on a Patient With Femoroacetabular Impingement
Authors: Davila-Parrilla Ariel D. , Iguina-González Elena
Published: April 2021

Case:

This report presents the results of a hip arthroscopic technique that was used to treat an unusual posterior wall acetabular fracture nonunion. A 30-year-old man presented with 1 year of persistent left-sided buttock and groin pain with associated feeling of instability when climbing stairs. Magnetic resonance imaging demonstrated a small left acetabular posterior wall fracture nonunion. We describe outpatient treatment with reduction and cannulated screw fixation using arthroscopic techniques that permitted immediate partial weight bearing and achieved excellent outcomes at 1 year.

Conclusion:

Arthroscopic fixation of an acetabular posterior wall fracture nonunion may be a feasible treatment option in select cases.
Metodologia Inovadora para o Ensino de ‘Linhas de Transmissão’ em Cursos Universitários.
Authors: JUNG Clecio , KLOTZ Darlan Felipe , Magnaguagno Jefferson
Published: April 2021

Em cursos de engenharia elétrica e afins, um dos conceitos mais importantes e recorrentes é o das leis de Kirchhoff, que descrevem como tensões e correntes elétricas se comportam em circuitos fechados, conceitos estes, normalmente ensinados no início dos cursos de graduação, em disciplinas como ‘Física eletromagnética’ ou ‘Circuitos Elétricos’, sendo posteriormente requisitados durante o restante do curso e no exercício da profissão. Outro conceito relevante a esta formação são ‘Linhas de transmissão’, temática ao qual as leis de Kirchhoff deixam de ser válidas, dificultando a compreensão de estudantes e o trabalho do professor. O presente estudo tem por objetivo apresentar um método prático de ensino, baseado em simulações, animações e experimentos de maneira a simplificar a compreensão deste assunto delicado. Assim, pretende-se fornecer diretivas práticas para tornar simples o processo de aprendizado de matérias como ‘Compatibilidade Eletromagnética’, ‘Linhas de transmissão’ e ‘Eletromagnetismo’.
Sistema de Avaliação do Impacto de Políticas Educacionais em Grupos de Municípios, Cidades Conurbadas e Regiões Metropolitanas
Authors: Goulart  dos Santos Katia  Cilene
Published: April 2021

É nos municípios que acontece a materialização da ação estatal, na oferta de bens e serviços à população, e são também nas cidades que ocorrem as distorções de planejamento e capacidade de execução destes serviços, distorções muitas vezes associadas ao processo de veloz urbanização que evidencia desigualdades sociais. Após a Constituição de 1988, dezenas de atribuições para o desenvolvimento das políticas públicas foram descentralizadas e compartilhadas entre os entes federativos, dando aos munícipios autonomia para desenvolver suas ações governamentais. Dada a importância do tema para o Brasil, país que ainda detém altos índices de desigualdade social, este estudo apresenta uma proposta metodológica para avaliação dos impactos das políticas sociais em grupos de municípios de uma mesma região, a partir de um estudo piloto que analisou aspectos da política educacional do Ensino Fundamental em seis municípios da região Metropolitana de Belo Horizonte, sendo Betim, Ibirité, Nova Lima, Ribeirão das Neves, Sabará e Santa Luzia. A partir de análise quantitativa sobre indicadores de insumos educacionais como orçamento, estrutura e quadro profissional das Escolas, versus indicadores de resultados educacionais como IDEB, taxas de reprovação e abandono de alunos, e distorção idade/série, o estudo piloto verifica as principais diferenças entre as cidades da RMBH. Os resultados apontam distorções nestes indicadores, entre os territórios abordados, e entre a responsabilidades municipal e estadual na capacidade de oferta e na qualidade do ensino fundamental, sugerindo necessidade de maior integração das políticas educacionais para evitar desigualdades de acesso e qualidade do ensino. Conclui-se pela validade da ferramenta apresentada.
Editorial: Inovação Tecnológica para a Superação da Crise
Authors: ZAAK SARAIVA Illyushin
Published: April 2021

O Caderno de Propriedade Intelectual e Transferência de Tecnologia surgiu em 2019 como um dos sintomas a demonstrar a riqueza do Ambiente de Inovação de Luzerna-SC – essa pequena cidade com apenas 5.684 habitantes (IBGE, 2020) – ambiente este formado por um importante mercado do setor industrial – com marcada presença das empresas Eletrometalomecânicas instaladas nos municípios de Luzerna, com nada menos que 50 empresas desse setor, de Joaçaba, com 43, e de Herval d’Oeste, com 23 (ZAAK SARAIVA, MOREJON, 2020) – formado ainda por 2 instituições de educação profissional e tecnológica de importância regional e resultados de destaque no cenário estadual catarinense – Senai e Campus do Instituto Federal Catarinense – e sobretudo, formado pela Incubadora Tecnológica, a ITL, criada pelo Município (BENCKE et al, 2018) – atualmente integrada por cerca de 40 startups – além do Parque Tecnológico de Luzerna, criado recentemente e composto por diversas instituições, e do novo laboratório de prototipagem IF-Maker Luzerna, com início das atividades previsto para maio de 2021.
Como resultado mais expressivo das excelente condições oferecidas pelo Ambiente de Inovação de Luzerna tem-se principalmente um riquíssimo Ecossistema constituído pelas 40 startups presentemente incubadas na ITL – com grande presença de alunos e ex-alunos do Campus local do IFC – 5 dentre as quais foram vencedoras do edital estadual Sinapse da Inovação, e ainda várias delas tendo sido classificadas em concursos de planos de negócio como o do Sebrae-SC, e dentre as quais 3 empresas que já se graduaram, o que atesta [...]