bluuebunny/crossref_metadata_2025 huggingface dataset:
Bioinformatics analyses suggest that mutations in COL12A1 and its miRNAs promote stomach adenocarcinoma via loss of COL12A1 suppression
Authors: Xin Qiang , Zhao Yanlong , Huang Shaoli , Xin Hong-Yi , Feng Zhipeng , Xin Hong-Wu , Wang Xiaoyan , Wang Yingying , Su Xiulan
Published: May 2023

Objectives

Stomach adenocarcinoma (STAD) is the fifth most common cancer and the third leading cause of cancer-related deaths worldwide. It is important to understand its molecular basis better and identify noninvasive biomarkers for targeted therapy. Usually, tumors contain driver genes or passenger genes, which can be regulated by microRNAs (miRNAs). However, the mechanism underlying the interaction between miRNA and their target genes in STAD has not been fully demonstrated. To date, no miRNA-targeted gene mutation sites that promote STAD progression have been reported, and there are no reports of the mutations within the 3′-UTR of COL12A1 that could contribute to STAD development.

Methods

Here, multiple genomic and transcriptomic profiles of STAD patients were downloaded from several reputable online databases and various analyses were conducted, including assessments of mutation rates, copy number variations (CNVs), single‐nucleotide polymorphisms (SNPs), RNA secondary structure, protein-protein interaction (PPI), pathway network, differentially expressed genes (DEGs), and patient survival rate. We aimed to evaluate impact of the SNPs on progression of stomach adenocarcinoma.

Results

We identified 22 critical DEGs involved in cell-cell and cell-matrix interaction. Seven of these key DEGs, including COL12A1, were associated with poorer overall survival. Interestingly, we found that COL12A1 was targeted by the miRNAs: hsa-miR-130b-5p (which carries the mutations rs1174814901 and rs761813865) and hsa-miR-18a-5p (which carries the mutation rs1198460870). These mutations lead to a change in the secondary structure of the miRNAs. And we also found that the miRNA target sites of COL12A1 were also mutated. These mutations at both miRNAs and COL12A1 likely attenuated their binding capability, leading to compensatory miRNA overexpression in the STAD patients. The miRNA overexpression was further found to be significantly associated with worse survival in STAD patients.

Conclusions

Our results suggest that mutations in Col12A1 and its miRNAs promote STAD via loss of COL12A1 suppression, providing new insight into the molecular mechanisms of STAD progression. This finding has significant implications for the development of novel noninvasive diagnostic, prognostic and therapeutic biomarkers.
Monocytes differentiate along two alternative pathways during sterile inflammation
Authors: Villar Javiera , Ouaknin Léa , Cros Adeline , Segura Elodie
Published: May 2023

During inflammation, monocytes differentiate within tissues into macrophages (mo‐Mac) or dendritic cells (mo‐DC). Whether these two populations derive from alternative differentiation pathways or represent different stages along a continuum remains unclear. Here, we address this question using temporal single‐cell RNA sequencing in an in vitro model, allowing the simultaneous differentiation of human mo‐Mac and mo‐DC. We find divergent differentiation paths, with a fate decision occurring within the first 24 h and confirm this result in vivo using a mouse model of sterile peritonitis. Using a computational approach, we identify candidate transcription factors potentially involved in monocyte fate commitment. We demonstrate that IRF1 is necessary for mo‐Mac differentiation, independently of its role in regulating transcription of interferon‐stimulated genes. In addition, we describe the transcription factors ZNF366 and MAFF as regulators of mo‐DC development. Our results indicate that mo‐Macs and mo‐DCs represent two alternative cell fates requiring distinct transcription factors for their differentiation.
Improved Accuracy of Naïve Bayes Algorithm and Support Vector Machine Using Particle Swarm Optimization for Menstrual Cup Sentiment Analysis on Twitter
Authors: Shalikha Dini , Alamsyah Alamsyah
Published: May 2023

Menstrual cup is a menstrual hygiene sanitation tool that replaces disposable sanitary napkins for women that reaps many pros and cons in its use. From this, it is necessary to analyze the public's views regarding the use of menstrual cups, which is called sentiment analysis. Sentiment analysis is a process that aims to determine the polarity of the sentiment of a text. This paper performs a classification of menstrual cup sentiment analysis on Twitter using the Naïve Bayes and the Support Vector Machine  algorithm. Particle Swarm Optimization is applied to improve the accuracy of both classification algorithms. The final result of the accuracy obtained by the Naïve Bayes algorithm is 92.72% and the Support Vector Machine  algorithm is 96.13%. While the accuracy results after Particle Swarm Optimization is applied, for Naïve Bayes it produces an accuracy rate of 95.87%, and Support Vector Machine is 96.68%.
Implementation Data Mining with Naive Bayes Classifier Method and Laplace Smoothing to Predict Students Learning Results
Authors: Pradana Dany , Sugiharti Endang
Published: May 2023

Abstract. The application of information technology in the field of education produces big data. It retains information that can be treated as useful. Having data mining, can be used to model highly useful student performance for educators performing corrective actions against weak students. 
Purpose: The study was to identify the application and accuracy algorithm Naive Bayes Classifier to predict students' study results.
Methods: The prediction system for student learning outcomes was built using the Naive Bayes Classifier and Laplace Smoothing methods using a combination of two Information Gain and Chi Square feature selections. The experiment was carried out 2 times using different dataset comparisons.
Result: In the first experiment using a dataset of 80:20, the accuracy Naive Bayes Classifier method with Laplace Smoothing and without Laplace Smoothing showed the same results as 94.937%. On the second experiment to equate dataset 60:40 results of the Naive Bayes Classifier accurate method without Laplace Smoothing only 86.076%, then score a 91.772% accuracy using the Laplace Smoothing. The improvement is caused by a probability of zero that can be worked out with Laplace Smoothing.
Novelty: The selection feature process is very important in the classification process. Thus, in this study, information gain and chi square double selections of such features as information gain and so promote accuracy.
Effektive Risikoworkshops … Aber wie?
Authors: Harten Clemens , Bellora-Bienengräber Lucia , Meyer Matthias
Published: May 2023

Risikoworkshops sind ein verbreitetes Mittel, um Informationen und Einschätzungen mehrerer Akteure zusammenzubringen. Dabei ist es wichtig, sich über die richtige Gestaltung der Risikoworkshops Gedanken zu machen. Mit Simulationsexperimenten lässt sich zeigen, wie eine Organisation effektive Risikoworkshops, die zur Unternehmenskultur passen, gestalten kann.
On semantic redundancy in the epigraphs of Moesia Superior
Authors: Kunčer Dragana
Published: May 2023

In this paper, the principle of semantic redundancy is examined as evidenced in the corpus of the Moesia Superior inscriptions (Inscriptions de la Mésie supérieure – IMS). The objective is to identify pleonastic phrases within the epigraphic material and to distinguish instances of unmotivated redundancy. The starting point is the observation made by Hofmann, Löfstedt, Herman, and others that this type of redundancy, contrary to the pragmatically motivated or “rhetoric” one, could reflect the ongoing semantic change in Vulgar Latin. Given the scarcity of semantic redundancy findings in the IMS corpus, this paper also serves as an introduction to this linguistically important topic.
Palangka Raya People’s Responses to the Governor's Circular on Covid-19 Pandemic
Authors: Natalia Desi
Published: May 2023

Circular of the Governor of Central Kalimantan Number 443.2/20/BU, namely promoting social distancing by staying away from mass gatherings. Through these provisions, the government seeks to achieve a common goal: to prevent and minimize the spread of the covid-19 virus. This investigation that has been carried out seeks to understand the reality felt by residents of Palangka Raya. Researchers used qualitative research methods with a descriptive narrative approach. Data sources come from observations, interviews, and studies of references related to community responses, Governor's circular, and social actions. The results of the study explain that it has been proven that the essential thing in rejecting and reducing the spread of the Covid-19 virus is that there is a link between the level of education, knowledge, realization, and realistic actions, as well as the love that exists for these citizens in understanding and implementing government regulations, as well as regarding the benefits of implementing social distancing. This explains the sociological and theological phenomena through some of these linkages in the context of the Covid-19 pandemic, a form of instrumental action.
man-like woman and the menstruating man
Authors: Abdel-Latif Sara
Published: May 2023

There are a number of oblique references in Sufi literature to pious women whose austerities resulted in the loss of their menstrual cycle, as well as pious men who ascribed to themselves a type of metaphorical menstruation as a method of self-disparagement. This article analyzes such references in relation to dominant medieval Sufi discourses of purity and piety, in order to investigate the gendered rhetoric and presuppositions that underlie explicit and implicit allusions to menstruation in Sufi texts. In isolating and analyzing allusions to menstruation, four categories of reference emerge: depersonalization of menstrual blood, metaphorical male menstruation, masculinization of pious women, and reification of amenorrheic women. These narrative strategies, although applied inconsistently, all contribute to an overall deliberate effort by male authors to justify the inclusion of female bodies in male-dominated discursive spaces, while ultimately perpetuating hegemonic theologies of sacred masculinity. Through examining these inconsistent applications of gender in male-authored Sufi writings, this analysis identifies new avenues for revisiting medieval Islamicate notions of gendered identity in society in ways that dismantle ahistorical binary models of gender that have often skewed readings of Sufi and medieval Muslim sources.
Increasing future awareness in the cultural heritage sector using the SoPHIA model
Authors:   The Nordic Centre of Heritage Learning and Creativity, Wollentz Gustav
Published: May 2023

This report presents results from a project that aims at increasing future awareness in the cultural heritage sector, using the SoPHIA model. The project was run by the Centre for Applied Heritage at Linnaeus University, with funding from the university. Work on the report was carried out in2021 and 2022 by NCK (The Nordic Centre of Heritage Learning and Creativity AB) under the direction of Gustav Wollentz, in co-operation with Kalmar County Museum, Jamtli Museum, andDaniel Laven from the Department of Economics, Geography, Law and Tourism at Mid Sweden University. Results from the project show that the model succeeded in exploring possible future effects of a heritage intervention, defined as any action that results in a physical change to an element of a historic place, and related these effects to prioritized issues for societal development, such as participation, inclusion, and wellbeing. It managed to expand the range of potential action in the present. Furthermore, it also provided a useful tool for identifying significant areas where there is the potential to think more innovatively and creatively regarding future change and effects. The model helped in identifying the necessary steps and actions needed for realizing the interventionin accordance with a desirable scenario. The model failed in anticipating long-term futures or futures radically different from the present. It mostly provided insights into how the intervention could have an impact upon future change, but not on how future change would have an impact upon the intervention. Ways of adapting the model for increased future awareness are suggested.These include ways to make the model more suitable for anticipating long-term futures as well as futures of radical change.
INVESTIGATION ON THE EFFECT OF OSCILLATING MAGNETIC FIELDS ON FLUID FLOW AND FORCED-CONVECTION HEAT TRANSFER AROUND A SPHERE
Authors: Abbasi Zeinab , Dehkordi Asghar Molaei
Published: May 2023

In this article, the heat transfer of magnetic nanofluids over a sphere has been considered in the presence of an external oscillating uniform magnetic field for a wide range of Reynolds number values (Re). This study incorporates the effect of magnetic permeability and purposes the optimal operating condition for the first time. The significant difference between the magnetic property of the nanofluid and the heated sphere makes a non-uniform magnetic field around the sphere resulting in a significant alteration in the distribution of velocity and temperature around sphere. The variations of average Nusselt number (Nuavg) and drag coefficient (Cd) have been studied to demonstrate the influence of magnetic field frequency and intensity, Re, and the relative magnetic permeability of the sphere. It has been found that the magnetic field causes the vortices to appear or grow behind the sphere. This leads to fluid separation even for low Re values in the presence of magnetic field. Local Nu value is minimum at the separation point. This point moves towards the front of sphere as the magnetic field intensity increases. These vortices lead to boundary layer distortion, thereby increasing heat-transfer rate and drag force. In addition, the obtained results clearly indicate that there is an optimal frequency at which Nuavg and Cd can be maximized. The dimensionless optimal frequency (Ωτ) is about 0.6 regardless of Re value or magnetic field intensity. Moreover, the influence of the applied magnetic field is more noticeable for low Re values and/or frequencies near the optimum value. For instance, Nuavg and Cd increase by 150% and 50%, respectively, for Re value of 30 while they are three times smaller for Re value of 200. Increase in the magnetic permeability of sphere enhances the Nuavg up to 170% (at Re = 50) close to the optimal frequency, whereas its effect is almost negligible for frequencies far away from the optimal one. Furthermore, the obtained results clearly demonstrate that the heat-transfer increase is much larger than the penalty due to the drag force increase for frequencies close to the optimal value.
A STUDY OF MIXED CONVECTIVE TERNARY HYBRID NANOFLUID FLOW OVER A STRETCHING SHEET WITH RADIATION AND TRANSPIRATION
Authors: Vishalakshi A. B. , Mahabaleshwar U. S. , Laroze David , Zeidan Dia
Published: May 2023

This study explains the motion of a mixed convective ternary hybrid nanofluid flow with radiation and transpiration. Ternary hybrid nanofluid is the colloidal mixture of three district types of particles, namely, Al2O3, single-wall CNT, and graphene. The ordinary differential equations (ODEs) of the equation is yielded by converting partial differential equations (PDEs) with the help of suitable variables for analyzing the spherical, cylindrical, and platelet nanoparticles. Then the analytical solution can be conducted by using different shapes of the nanoparticles, namely, spherical, cylindrical, and platelet, to get the solution domain. Main results on the applications of suction and results of four roots are investigated. Also by using this domain fluctuation of friction, heat and mass transfer across the flow can be analyzed with various physical parameters. Increasing knowledge of these ternary hybrid nanofluids helps to improve the heat transfer rate. This is useful in dynamics of fuel and coolant in automobiles. Furthermore, the goal and novelty of the present work mainly explains the ternary hybrid nanofluid flow with three different shapes of nanoparticles in the presence of mixed convection. The given mixed convective Navier-Stokes equations given in PDE form are converted into ODE form using suitable transformation. The analytical results are expressed in terms of Prandtl number and in terms of four roots. Finally, the impact of different shapes of nanoparticles and parameters can be discussed using a graphical scenario. The main finding is that the Dufour number is greater for more values of thermal radiation. Also, transverse and tangential velocities as well as temperature and concentration profiles are greater for more values of solution domain and Darcy number.
Sound, Interrogation, Torture: John le Carré and the Audible State
Authors: Hepburn Allan
Published: May 2023

While completing his national service from 1951 to 1952, John le Carré served as an intelligence corps officer whose duties included the interrogation of refugees; as a member of MI5 and MI6 between 1958 and 1963, he interrogated defectors from Soviet bloc countries to test their sincerity or duplicity. In Tinker, Tailor, Soldier, Spy, The Honourable Schoolboy, Smiley's People, The Secret Pilgrim, The Mission Song, and le Carré's other novels, interrogation scenes contribute to the total soundworld of the audible state. As a way to gather information through extorted speech, interrogation occurs in extraterritorial nonplaces or undisclosed, deniable locations. Drawing on historical documents, this essay positions interrogation in terms of torture, human rights, and the capacity of the state to inflict harm or to extend protection to individuals under its authority. In le Carré's novels, characters not only listen like states—comprehensively, omnisciently—but also begin to think like states.
Credit Scores, Social Trust, and Stock Market Participation
Authors: Bricker Jesse , Li Geng
Published: May 2023

We propose the average credit score of a community as a metric of its social trust---a critical component of social capital. It is consistent with existing social capital indicators and can be constructed for more granular communities. We show that this social trust indicator has a strong association with stock investment of individuals living in the community, controlling for a rich set of investor and neighborhood characteristics. This association is more pronounced among the less educated, in areas with weaker law enforcement, and for stock investment through mutual funds, which requires delegation and relies more on trust. Furthermore, relocating to higher-social-capital communities predicts future stock market entries.
Optimal Bidder Selection in Clearing House Default Auctions
Authors: Garratt Rodney , Murphy David , Nesmith Travis , Wu Xiaopeng
Published: May 2023

Default auctions at central counterparties (or ‘CCPs’) are critically important to financial stability. However, due to their unique features and challenges, standard auction theory results do not immediately apply. This paper presents a model for CCP default auctions that incorporates the CCP’s non-standard objective of maximizing success above a threshold rather than revenue, the key question of who participates in the auction and the potential for information leakage affecting private portfolio valuations. We show that an entry fee, by appropriately inducingmembers to participate or not, can maximize the probability the auction succeeds. The result is novel, both in auction theory and as a mechanism for CCP auction design.
EXPRESS FEASIBILITY STUDY TOOL FOR PROJECTS TO EXTRACT TARGET LIQUID HYDROCARBONS FROM ASSOCIATED PETROLEUM GAS
Authors: Melnik E. R. , Gabbasov R. G.
Published: May 2023

For a long time, associated petroleum gas was considered a by-product of oil production. Its properties were underestimated and most of the extracted raw materials were burned. However, the development of the gas and petrochemical industry has made it possible to take a fresh look at the possibilities of using associated petroleum gas: the extraction of valuable products from it using hydrocarbon processing technology. Currently, each oil producing company adheres to the approach to the rational use of associated gas, which is based on its use as a feedstock for obtaining valuable hydrocarbon products. In this regard, there is a growing need to carry out technical and economic feasibility for projects to extract target liquid hydrocarbons from associated petroleum gas.The article outlines the difficulties in applying the traditional approach to the implementation of technical and economic feasibility for projects to extract target liquid hydrocarbons from associated petroleum gas and natural gas in large fields with developed infrastructure. The need to develop a new, more efficient methodology for conducting technical and economic feasibility of such projects in terms of reducing the time and cost of work is indicated.The authors proposed a methodology for creating a software tool for conducting an express technical and economic feasibility on the extraction of target liquid hydrocarbons from associated petroleum gas and natural gas. This methodology will allow in a short time and at minimal cost to rank and select the most attractive projects for further full-fledged technical and economic feasibility and exclude work on conducting a technical and economic feasibility of obviously unprofitable projects.
IMPROVING THE METHOD OF SELECTING BUFFER TO IMPROVE THE QUALITY OF WELL ANCHORING WITH THE USE HYDROCARBON-BASED DRILLING FLUID
Authors: Mardaganiev T. R. , Pereskokov K. A. , Galiev A. F. , Rafikov I. R. , Agzamov F. A.
Published: May 2023

Currently, when cementing casing strings, various formulations of buffer fluids are used, the choice of which is based on laboratory testing of its compatibility with specific drilling and grouting solutions. The development of market relations evolutionarily pushed manufacturers to obtain and use the most efficient, durable materials and technologies that meet the requirements of ISO 13500:2008 [11], ISO 10426-2:2003(R) [12].In foreign and Russian practice, leading oil and gas companies use integrated quality management systems. However, due to the influence of a number of socio-economic factors, there has been a sharp rise in the cost and reduction in the production of components, along with a continuous increase in the need for efficient materials in many industries. The use of components produced by domestic enterprises in industrial volumes makes them deficit-free, and in terms of price quite affordable and competitive raw materials [6].«RN-BashNIPIneft» LLC together with the «USPTU has developed a methodology to establish uniform requirements for the evaluation of buffer fluids for hydrocarbon-based drilling fluids when cementing casing strings. The methodological basis for achieving this goal is the concept of a systematic approach in the quality management of buffer fluids [8].
OPTIMIZATION OF CONCENTRATIONS OF DRILLING REAGENTS BASED ON GUMS USING MATHEMATICAL MODELING METHODS
Authors: Loginova M. Ye. , Chetvertneva I. A. , Shammazov A. M. , Movsumzade E. M. , Tivas N. S.
Published: May 2023

The article is devoted to the use of regression analysis to analyze the use of biopolymer reagents based on gums of various manufacturers — domestic reagent brand KK (Russia), foreign Kem-X (USA) and Rodopol-23R (France).The use of these reagents in the composition of drilling fluids (BR) leads to the fact that BRs exhibit pseudoplasticity properties that are necessary for accident-free passage of multi-meter horizontal intervals and qualitative penetration of productive zones at various fields in Russia, including those in the Volga-Ural region. Equations of dynamic shear stress (DPS) and effective viscosity (EV) were obtained depending on the concentration of the examined gum (biopolymer reagent) and shear rate. The effectiveness of various gums (biopolymer reagents) and comparative analysis of the regression equations of the main parameters of drilling fluids using these reagents were evaluated.
NCEM Drop - Conventional (TM-014) v2
Authors: not provided sandra.crameri
Published: May 2023

Standard routine conventional negative contrast EM.
NCEM Drop - Tissue Dounce Homogenisation (TM-014) v1
Authors: not provided sandra.crameri
Published: May 2023

cell pellet dounce homogenisation
Economic and easy bacterial and yeast colony PCR with 2x premix Gotaq-Green (Promega) or DreamTaq-Green (Thermo Fisher) v1
Authors: Abramczyk Dariusz
Published: May 2023

Slightly modified method Gotaq Promega or DreamTaq (Thermo), economical, quick and ready-to-load. Perfect for yeast genotyping and screening
NCEM Drop Agar (TM-014) v1
Authors: not provided sandra.crameri
Published: May 2023

drop agar
Grammaticalization in Nigerian Pidgin
Authors: Mensah Eyo Offiong
Published: May 2023

Nigerian Pidgin (hereafter NP) has assumed elaborated roles and functions, gaining new grounds in different sociolinguistic domains as a result of its sustained social expansion process. One of the consequences of this increased dynamism of NP is the development of lexical items into grammatical markers which is an expected natural process. In this paper, we examine language-internal mechanisms that transform lexical items into morphosyntactic items either for semantic value, creativity, expressivity or routinization. Our basic argument is that grammaticalization in NP is not contact-induced but a language-internal phenomenon, which reveals that NP has both a synchronic and diachronic existence that are imperative in evolving its unique grammar.
Pragmatic functions of requests in commentaries made by the readership to an online news article
Authors: Magdaleno Nancy , Gutiérrez-Rivas Carolina
Published: May 2023

The following study takes its data from commentaries made by the audience to acontroversial piece of news,  posted by a virtual newspaper. The theoretical frame is based on Searle’s notions about the non-unidimensionality of speech acts. It is also complemented by Vendervenken ́s proposals about the existence of a gap between the speaker meaning and the sentence meaning. However, given the virtual context where the utterances are produced, a different dimensionality was observed regarding the directive speech acts. During the analysis, we took into account the (in)direct strategies used by the speakers when expressing ideas or opinions. These were classified according to Blum-Kulka, House and Kasper. It was presupposed that the non-existent cost-benefit relationship between the interlocutors in a virtual environment would be a decisive factor for being more or less direct when making requests, giving orders or making pleas. The results showed a high frequency of direct requests with an exhortative function plus an underlying function of rejection. Rejection was also found as a subfunction of the other types of pragmatic functions.
Action Research Topics and Questions in a Foreign Languages Teaching Practicum in Colombia
Authors: McNulty Maria
Published: May 2023

Pre-service teachers identify topics and formulate research questions in action research under the guidance of advisors in the teaching practicum of an undergraduate foreign languages teaching program in Colombia. The objective is to examine pre-service teachers' and advisors' beliefs about useful methodological strategies to identify the topics and formulate the research questions, and the roles they assumed. The method in this case study was structured questionnaires and semi-structured interviews with the participants. This study shows that journal writing, collaborative dialogue, exploring and expanding one's theoretical base, delimiting topics, and de­monstrating work were useful strategies. Though pre-service teachers took ownership of choosing topics and formulating questions, some shared roles led advisors to participate more actively in this process. The methodologi­cal process used to identify the topics and formulate the research questions is associated with a reflective professional development endeavor with in­dividual and group reflection. Recibido: 01-09-09 /Aceptado: 28-01-10 How to reference this article: Mcnulty Ferri, M. (2010). Questions et sujets de recherche action d'enseignants en formation dans un programme de Licence en Langues Etrangères de Colombie. Íkala.15(1), pp.207-230.
Pronominal Address Forms of College Students in Medellin (Colom­bia) from the Sociopragmatic Point of View: Socioeconomic Status and Sex
Authors: Jang Ji Son
Published: May 2023

Objectives: To present the results of research on pronominal address forms among undergraduate population in Medellín. This research took into account socioeconomic status and gender as research variables.Methodology: It is based on the analysis of the main data obtained through a questionnaire of 806 informants, and it was applied to the following four statistical techniques: 1) Sample Size for Estimating Multinomial Proportions (Thompson, 1987); 2) Contingency tables (Cochran, 1952); 3) Kruskal-Wallis Test (nonparametric test) (Kruskal & Wallis, 1952); and 4) Friedman's Test (nonparametric test) (1937, 1939, 1940).Results: Statistics shows that the research variables influence the pronominal selection.Conclusions: The following findings are worth mentioning: the lower the social class, the more usted is used compared to tú / vos. Addressing someone as tú, compared to addressing him / her as vos, is observed more frequently among the high class. Among men, the use of ''tuteo'' can imply a feminizing nuance; the use of ''voseo'' is ever-present; the use of usted is very common compared to, for example, the Peninsular Spanish variant.

Recieved: 26-04-2010 /Accepted: 20-10-2010

 How to reference this article:

Jang, J. S. (2010). Fórmulas de tratamiento pronominales en los jóvenes universitarios de Medellín (Colombia) desde la óptica sociopragmática: estrato socioeconómico y sexo. Íkala. 15(3), 43 – 116.
Linguistic Policy of Certification of Foreign Language Competence at the Universidad de Antioquia: a Discourse Based Analysis
Authors: Restrepo Sepúlveda Elsa Adriana
Published: May 2023

This article examines some discourses about the Linguistic Policy of the Certification of Foreign Language Competence (LP of CFLC) at the Universidad de Antioquia, with the aim of analyzing the findings, perceptions and positions of those who administer the policy regarding what it establishes and means. The article presents a methodological approximation based on a critical discourse analysis to tackle the subject. The analysis is done through some excerpts taken from the corpus of the study, which are constituted by: 1) Thirty semi-structured interviews applied to the board of professors that run the policy, postgraduate students, professionals and educators that have met the requirement of certification; and 2) the official documents that support the policy. The analysis makes it possible to identify the administrator's reflections on the LP of the CFLC. In addition, it unveils how through this type of discourse the certification requirement of foreign language competence has been naturalized and legitimized and how such a requirement serves as a mechanism for the compliance of the policy, acquiring a leading role. This requirement generates resistance against the linguistic policy, and not so much the assumed importance of the foreign language competence acquisition.
Errors in the Use of English Tenses
Authors: Garrido Carmen Gloria , Rosado Romero Cristina de la Luz
Published: May 2023

This article presents the results of an error analysis investigation carried out in Concepción, Chile, with a group of forty-eight native speakers of Spanish studying to become EFL teachers at Universidad San Sebastián. All participants were first year students who had studied English tenses and aspects for a year. The objectives of this investigation were the identification of students' errors regarding the use of tenses and aspects in English, the design of a hierarchy of difficulty and the explanation of main errors. According to the results obtained, after a year of formal instruction, students still showed problems with the correct use of English tenses and aspects. The main problem was accurately matching tenses and aspects to different contexts. Findings provide useful information to design remedial programmes to help students become successful in the use of English tenses and aspects.
English Reading Strategies of Two Colombian English Preservice Teachers
Authors: López Velásquez Ángela , Giraldo María Cristina
Published: May 2023

This study focuses on the findings of a research project that aimed at identifying the English reading comprehension strategies used by two preservice English teachers, one a successful reader and the other one a less successful reader. The participants were students of a B.Ed. undergraduate program at a public university located in the Colombian Eje Cafetero. Methodological procedures included the collection of reading data through think-aloud protocols, and analysis was based on the constant-comparative method (Glaser & Strauss, 1999). Findings suggest that three main differences characterized the reading of the two TEFL readers: the number of strategies evoked, the frequency of their use, and the effectiveness of the strategy used by each reader. The article addresses implications for reading instruction and research based on both cases.
Okullarda Yaşanan Kayırmacı Davranış Örneklerinin Öğretmenlerin Deneyimlerine Göre İncelenmesi
Authors: AYAS Sibel , ATMACA Taner
Published: May 2023

Bu araştırmanın temel amacı farklı kademelerdeki öğretmenlerin görüş ve deneyimleri doğrultusunda okullarda karşılaşılan çeşitli kayırmacılık davranışlarının nedenlerini ve etkilerini ortaya çıkarmaktır. Araştırmanın diğer amacı ise kayırmacılık yapanların ve kendisine kayırmacılık yapılanların öne çıkan özelliklerini betimlemektir. Çalışmada nitel araştırma geleneği içerisinde yer alan olgubilim (fenomenoloji) deseni kullanılmıştır. Araştırmanın çalışma grubunu kolay (uygun) örnekleme tekniği ile belirlenen ve Düzce ilinde görevli on öğretmen meydana getirmektedir. Araştırmanın verileri betimsel analiz ve içerik analizi ile çözümlenmiştir. Öne çıkan bulgulara göre öğretmenler en çok okullarda, informal ilişkilere dayalı kayırmacılığın, siyasi ya da dini görüş yakınlığından kaynaklı kayırmacılığın, hemşericiliğin, sendikal yanlılığın ve görev dağılımlarında çeşitli kayırmacılığın olduğunu belirtmektedir. Kayırmacılık yapan ve kayrılanlar meslek etiğini ihlal edenler, etik değerlere önem vermeyenler, haksız beklenti içinde olanlar ve mesleki başarısı düşük olanlardır. Kayırmacılık daha çok, çıkar ilişkisini sürdürmek için yapılmaktadır. Kayırmacılığın nedenleri arasında meslek etiği bilgisinden yoksun olma, gruplaşma, çıkar ilişkisi kurma, zayıf okul kültürü gibi faktörler sıralanmaktadır.
On the Problem of Efficient Management of Homogeneous Products Supply Chains to Various Customers
Authors:   Ufa University of Science and Technology, Ufa, 450076, Russian Federation, Valeev R. S. , Shadrina M. V. ,   Ufa University of Science and Technology, Ufa, 450076, Russian Federation, Bautov V. V. ,   Ufa University of Science and Technology, Ufa, 450076, Russian Federation, Valeeva A. F. ,   Ufa University of Science and Technology, Ufa, 450076, Russian Federation
Published: May 2023

he article considers the Logistics_SAP task which combines a number of subtasks that arise when fulfilling orders for some homogeneous products to various customers: managing the supply and purchase of the necessary raw materials for the manufactured products; inventory management; search for the optimal route of delivering products to various customers, taking into account their best placement in motor vehicles (MV). It is proposed that the listed subtasks should be integrated as an eXternal system into some modules in SAP to ensure efficient supply chain management with the orders for the manufactured products. Mathematical models, algorithms of the considered tasks and a real world eXample are provided in the article.
Demotorization and Space: The Influence of Spatial Factors on Car-Dependency Reduction in France
Authors: Belton Chevallier Leslie , Cacciari Joseph , Aguiléra Anne
Published: May 2023

Although car ownership continues to rise worldwide, temporary or more lasting phases of demotorization (reduction in the number of vehicles owned) are taking place at the household level. Existing studies show that the probability of demotorization increases at certain stages of the life cycle, for example, associated with a reduction in household size or income, or a move to a neighborhood with better transit provision. However, the rationale and temporalities of the decision-making processes involved remain obscure. This knowledge could be useful in informing public action on the measures needed in different categories of territories and populations to encourage a steady and sustainable fall in car ownership. As its contribution to these questions, this article focuses on the influence of spatial factors on household demotorization. The methodology draws on 51 interviews conducted in 2018 with demotorized households in four French urban areas (Paris, Lyon, Bordeaux, and Dijon). The findings highlight the role of the characteristics of the current place of residence, changes in the place of residence or place of work, and the spatial dimensions of travel socialization. If, as things stand, permanent and voluntary relinquishment of the car is only possible in very dense urban areas, our results show firstly that there is a strong case for working on mobility representations and practices from a very early age and, secondly, the importance of implementing planning policies and alternatives to the private car that are credible in areas of lower population density.
Kyiv philosophical school and spiritual self-determination of its founders: at the worldview intersection of atheism and faith
Authors:   Taras Shevchenko national University of Kyiv, Vdovychenko Heorhii
Published: May 2023

The article examines the spiritual self-determination of the creators of the Kyiv philosophical school as an innovative humanitarian project of directors of the Institute of Philosophy of the Academy of Sciences of the Ukrainian SSR P. Kopnin (1962–1968) and V. Shynkaruk (1968–2001). It arouse during Khrushchev "thaw" thanks to a generation of Ukrainian philosophers of the sixties and was one of the first academic prototype models of the open society in the Ukrainian SSR in the post-Stalin era. Its well-known founders witnessed significant and very contradictory changes in domestic and world church and religious life, especially the antireligious campaign in the USSR in the 1950s and 1960s and the revival of the said life in Ukraine before and at the beginning of its independence. Over the past two decades, projects on the oral history of philosophy of T. Chaika and of Student Society of Oral History of Philosophy of Taras Shevchenko National University of Kyiv have been going. Thanks to them, the final autobiographical reconstructions of academicians of the National Academy of Sciences of Ukraine S. Krymskyi, M. Popovych and V. Horskyi, as well as the ones of a group of their colleagues, the co-founders of the said school, in particular P. Yolon, M. Kashuba and Y. Stratii, were obtained. In combination with no less interesting memoirs of their colleagues at this school, first of all V. Lisovyi, they jointly presented a wide range of hitherto unknown evidence of the spiritual search of these creators of the Kyiv philosophical school as, in fact, the center of institutionalizing of Ukrainian national philosophical tradition in the 1960s – 1980s.
SUPPLY CHAIN RISK MANAGEMENT: A SURVEY STUDY ON CLASSIFICATION OF RISKS
Authors: BİLİŞİK Murat Taha
Published: May 2023

Supply chain risk management (SCRM) is crucial for a long-term profitable, competitive and sustainable supply chain. Since defining, classifying and prioritizing risks within the scope of SCRM is an important issue in terms of both supply chain and business performance, the study has aimed to offer a road map for the companies which includes identification of the risks that companies operating in the manufacturing sector may encounter in their supply chains, calculation of risk points consisting of probability and impact values of identified risks and prioritization of risks. Using the survey method, data were collected on the probability and impact of the risks that enterprises may encounter in their supply chains. SPSS and AMOS programs were used for the validity and reliability calculations of the measurement model and as a result, risk groups have been listed by calculating probability, impact and significance scores for each risk element.
Secure Digital Information Forward Using Highly Developed AES Techniques in Cloud Computing
Authors: Arularasan A. N. , Aarthi E. , Hemanth S. V. , Rajkumar N. , Kalaichelvi T.
Published: May 2023

Nowadays, in communications, the main criteria are ensuring the digital information and communication in the network. The normal two users' communication exchanges confidential data and files via the web. Secure data communication is the most crucial problem for message transmission networks. To resolve this problem, cryptography uses mathematical encryption and decryption data on adaptation by converting data from a key into an unreadable format. Cryptography provides a method for performing the transmission of confidential or secure communication. The proposed AES (Advanced Encryption Standard)-based Padding Key Encryption (PKE) algorithm encrypts the Data; it generates the secret key in an unreadable format. The receiver decrypts the data using the private key in a readable format. In the proposed PKE algorithm, the sender sends data into plain Text to cypher-text using a secret key to the authorized person; the unauthorized person cannot access the data through the Internet; only an authorized person can view the data through the private key. A method for identifying user groups was developed. Support vector machines (SVM) were used in user behaviour analysis to estimate probability densities so that each user could be predicted to launch applications and sessions independently. The results of the proposed simulation offer a high level of security for transmitting sensitive data or files to recipients compared to other previous methods and user behaviour analysis.
Real-Time Streaming Analytics using Big Data Paradigm and Predictive Modelling based on Deep Learning
Authors: Dinakar J. Ruby , S. Vagdevi
Published: May 2023

With the evolution of distributed streaming platforms analysing humongous time series data, which is streamed continuously from IoT devices become lot easier. In most of the IoT networks the data are in motion or in data centre/cloud. It is possible to process this data in real time similar to edge devices using the big data framework.  In data intensive applications predictive analytics require more resources to perform complex computations. Apache Flink framework is capable of performing real time streaming of schema less data and scales very high in distributed environment with low latency, it is used to collect and store the data in the cloud. This work suggests a suitable environment to collect, transport, preprocess and aggregate the data stream to perform predictive analytics using deep learning models. Deep learning automatically extracts features and builds models after training, it has the potential to solve problems that can't be solved by conventional machine learning models. Therefore, the use of algorithms based on deep learning is recommended for forecasting temporal data. Also, we discuss a number of different deep learning forecasting models and analyse the performance of different deep learning forecasting models in order to determine which one is the effective model for single step, multi step and multi variant methods based on error functions with respect to streamed sensor data.
Physiological Conditions Monitoring System Based on IoT
Authors: Gulati Meena , Yadav Rakesh Kumar , Tewari Gaurav
Published: May 2023

Internet of Things (IoT) comprises smart devices, sensor nodes, and wearable elements for data sharing and services, through which the sensor networks are used for developing smart environments. IoT models are growing very fast because of the rapid growth of wireless devices and communications. In addition, the heterogeneous nature of the IoT paradigm heightens the risks to both individuals' data privacy and their data's security. As a direct consequence of this, comprehensive security models are required in order to guarantee secure communication between the various devices. The biggest obstacle in the way of effective and reliable device interaction in the Internet of Things is security.
Naïve Bayesian Classification Based Glioma Brain Tumor Segmentation Using Grey Level Co-occurrence Matrix Method
Authors: Anitha R. , Sundaramoorthy K. , Suseela D. , Thevi T. Suganya , Selvi S. , Aljanabi Mohammad
Published: May 2023

Brain tumors vary widely in size and form, making detection and diagnosis difficult. This study's main aim is to identify abnormal brain images., classify them from normal brain images, and then segment the tumor areas from the categorised brain images. In this study, we offer a technique based on the Nave Bayesian classification approach that can efficiently identify and segment brain tumors. Noises are identified and filtered out during the preprocessing phase of tumor identification. After preprocessing the brain image, GLCM and probabilistic properties are extracted. Naive Bayesian classifier is then used to train and label the retrieved features. When the tumors in a brain picture have been categorised, the watershed segmentation approach is used to isolate the tumors. This paper's brain pictures are from the BRATS 2015 data collection. The suggested approach has a classification rate of 99.2% for MR pictures of normal brain tissue and a rate of 97.3% for MR images of aberrant Glioma brain tissue. In this study, we provide a strategy for detecting and segmenting tumors that has a 97.54% Probability of Detection (POD), a 92.18% Probability of False Detection (POFD), a 98.17% Critical Success Index (CSI), and a 98.55% Percentage of Corrects (PC). The recommended Glioma brain tumour detection technique outperforms existing state-of-the-art approaches in POD, POFD, CSI, and PC because it can identify tumour locations in abnormal brain images.