AKER: A Design and Verification Framework for Safe andSecure SoC Access Control

Modern systems on a chip (SoCs) utilize heterogeneous architectures where multiple IP cores have concurrent access to on-chip shared resources. In security-critical applications, IP cores have different privilege levels for accessing shared resources, which must be regulated by an access control system. AKER is a design and verification framework for SoC access control. AKER builds upon the Access Control Wrapper (ACW) -- a high performance and easy-to-integrate hardware module that dynamically manages access to shared resources. To build an SoC access control system, AKER distributes the ACWs throughout the SoC, wrapping controller IP cores, and configuring the ACWs to perform local access control. To ensure the access control system is functioning correctly and securely, AKER provides a property-driven security verification using MITRE common weakness enumerations. AKER verifies the SoC access control at the IP level to ensure the absence of bugs in the functionalities of the ACW module, at the firmware level to confirm the secure operation of the ACW when integrated with a hardware root-of-trust (HRoT), and at the system level to evaluate security threats due to the interactions among shared resources. The performance, resource usage, and security of access control systems implemented through AKER is experimentally evaluated on a Xilinx UltraScale+ programmable SoC, it is integrated with the OpenTitan hardware root-of-trust, and it is used to design an access control system for the OpenPULP multicore architecture

Talking and reflecting: Exploring the cognition of a group of English language teachers from the Language Institute of a Colombian public university

This qualitative case study aimed to delve into the cognition of a group of English teachers; that is, their set of beliefs, knowledge, thoughts, and practices (Borg, 2003). The study also aimed to investigate the factors that exert influence on their cognition and the significance of participants' reflections in cultivating self-awareness regarding their cognition. The research was conducted at the Instituto de Lenguas Extranjeras (ILEX) within Universidad Tecnológica de Pereira. The participant pool comprised six teachers selected to represent a diverse range of teaching experience, qualifications, ages, and roles within the language institute. Data was collected through semi-structured interviews and stimulated recall sessions, which were subsequently subjected to content analysis. The findings shed light on the formation of participants' professional identity, which was found to be molded mainly by the constituents of their practices, and educational factors that exert influence on their cognition both formally and informally. Nuances of participants’ empathy were also found as distinctive characteristics of their cognition. Finally, participants’ involvement in the research process resulted in a valuable source of reflection.Este estudio de caso cualitativo tuvo como objetivo adentrarse en la cognición de un grupo de profesores de inglés. Es decir, en su conjunto de creencias, conocimientos, pensamientos y prácticas. El estudio también buscó investigar los factores que ejercen influencia en su cognición y la importancia de las reflexiones de los participantes para cultivar la autoconciencia en relación con su cognición. La investigación se llevó a cabo en el Instituto de Lenguas Extranjeras (ILEX) de la Universidad Tecnológica de Pereira. El grupo de participantes estaba compuesto por seis profesores seleccionados para representar una amplia gama de experiencia docente, cualificaciones, edades y roles dentro del instituto de idiomas. Los datos se recopilaron a través de entrevistas semiestructuradas y sesiones de recuerdo estimulado, que posteriormente se sometieron a un análisis de contenido. Los hallazgos han puesto de manifiesto la formación de la identidad profesional de los participantes; se encontró que ésta se moldea principalmente por los componentes de sus prácticas y los factores educativos que ejercen influencia en su cognición tanto de manera formal como informal. También se encontraron matices de empatía en los participantes como características distintivas de su cognición. Por último, la participación de los docentes en el proceso de investigación resultó ser una valiosa fuente de reflexión.MaestríaMagíster en Educación BilingüeContents Abstract 3 Resumen 4 Acknowledgments 5 Introduction 11 Research Gap 13 Research Questions 15 Research Objectives 15 Theoretical Framework 16 Teachers’ Cognition 16 Teachers’ Cognition in Language Teaching 17 Constructing Teachers’ Cognition 20 Sociocultural Theory and Teachers’ Cognition 22 Social Learning 23 Reciprocal Determinism 24 Use of Social Learning Theory in The Classroom 24 Reflective Practice in Teaching 25 Teachers’ Stated Practices and Preferences 29 Teachers’ Empathy 30 Literature Review 32 Factors Shaping Teachers’ Cognition at Various Levels 33 Teachers’ Cognition and Emotions 33 Adverse Situations Shaping Teachers’ Cognition 34 Teachers’ Learning and Teaching Experience Shaping Their Cognition 35 Reflective Practice and Teachers’ Cognition 36 Cognition Informing Educational Decisions and Teachers’ Education 36 Teachers’ Attitudes Towards Language Teaching Influencing Their Cognition 37 Teachers’ Cognition and Curricular Innovations 38 Continuing Professional Development Shaping Teachers’ Cognition 39 Methodological Perspectives to the Study of Teachers’ Cognition 41 Collective Perspective to the Study of Teachers’ Cognition 41 Individual Perspective to the Study of Teachers’ Cognition 42 Narrative Inquiry in the Study of Teachers’ Cognition 42 Content Analysis and Common Data Collection Methods to Explore Teachers’ Cognition 43 Methodology 46 Qualitative Case Study 46 Context 46 Participants 48 Researchers’ Roles and Positionality 50 Data Collection Methods 51 Interviews 51 Stimulated Recalls 53 Data Analysis 54 Data Organization and Preparation 54 Coding 55 Reducing Overlapping and Redundancy 57 Findings and Discussion 60 Formal and Informal Educational Factors Influencing Teachers' Professional Identity, Knowledge, and Practices 61 Former Teachers as a Factor Influencing Professional Identity 62 Peers Influencing Teachers' Professional Identities and Teaching Practices 66 Professional Development Program Influencing Teachers' Professional Identities and Teaching Practices 70 Participants’ Teaching Experience Influencing Their Professional Identity and Teachers’ Knowledge 72 Family and Personal Relationships Influencing Teachers' Professional Identity 76 Self-Study Influencing Teachers' Professional Identity and Growth 78 The Teaching Context Affecting Teachers' Identity and Knowledge 79 Participants’ Distinctive Cognitions 81 ILEX’s Teachers Cognitions in Stated Practices 81 Teachers’ Stated Preferences in Relation to Their Practices in ILEX Classrooms 85 Empathy for Fostering Teacher-Student Approachability and Rapport Building 88 Empathy for Tolerating Mistakes Made by Students 93 Research Participation as an Emergent Opportunity for Reflective Practice 95 Verbalization of Participants’ Beliefs and Thoughts as a Source of Reflective Practice 99 Conceptualization of the Teaching Profession as a Source of Reflection 100 Participants’ Observation of Their Own Teaching on Video as a Source of Reflection 101 Unexpected Findings 103 Emerging Practices and Preferences from the Urgent Shift in Education Due to a Global Pandemic 103 The Use of Spanish in the English Language Classroom Due to the Implementation of Virtual Learning 108 Conclusions 115 Implications 117 Recommendations and Future Directions 119 Limitations 121 References 122 Appendix A Semi-structured interview 138 Appendix B Participants Consent Letter 14

Diseño de procedimientos para la calibración de incubadoras

En el contenido de éste artículo se hace referencia al procedimiento de calibración de incubadoras; procedimiento para el cual no existe una norma técnica especifica y que el grupo de electrofisiología diseñó en el marco de un proyecto aprobado por COLCIENCIAS que tiene como objetivo principal acreditar un laboratorio de calibración/ensayo de equipo electromédico.In the content of this one article reference to the procedure is made of calibration of incubators; procedure for which a technical norm doesn't exist specifies and that the electrophysiology group designed in the frame of a project approved by COLCIENCIAS that has as principal aim credit a laboratory of calibration / test of medical equipment

Cycle Time Improvement by a Six Sigma Project for the Increase of New Business Accounts

This paper reports the application of a 6σ project about the reduction of the cycle time for acquiring a new credit account in a finance group. The methodology used in this project was the DMAI technique of 6σ. The paper documents the analysis and tasks performed by the management team that reduced cycle time from 49 days to 30 days which resulted in an expected annual savings of $300,000.00. Also an increased customer satisfaction and an increase of sales is expected

Sesgos cognitivos en las sentencias por los procesos de violación sexual en el juzgado penal colegiado de Tarapoto; 2021

La investigación tuvo como objetivo general analizar de qué manera los sesgos cognitivos se presentan en las sentencias por los procesos violación sexual en el Juzgado Penal Colegiado de Tarapoto; 2021. La existencia de los sesgos frente a una decisión del operador jurídica se ve reflejada en el proceso de presentación de la prueba, esto como contenido esencial del derecho a la presentación de la prueba analizado a través del delito de violación sexual. La metodología fue de tipo básica con diseño en teoría fundamentada, el enfoque aplicado en la investigación fue cualitativa, los instrumentos de recolección de datos fueron la guía de análisis documental y entrevista a expertos. El resultado principal indicó que el alcance de los sesgos cognitivos dentro del delito de violación sexual es sorpresivo, los operadores jurídicos se encuentran sesgados en demasía con estos atajos mentales que nublan el buen juicio, llegando a actuar y valorar incorrectamente medios probatorios y actos procesales de toda índole. Llegando a concluir que los sesgos cognitivos se presentan de forma encriptada dentro de las sentencias por los procesos en los delitos de violación sexual, hay que lograr identificarlas, esto lográndolo desde el análisis exhaustivo y el conocimiento de los sesgos