bluuebunny/crossref_metadata_2025 huggingface dataset:
Penilaian Risiko Pajanan Co, Pb Dan No2 pada Anak Sekolah di Kawasan Sekolah Dasar Makassar
Authors: Sosiawan Insan , Selomo Makmur , Birawida Agus Bintara
Published: December 2021

Senyawa CO, Pb, dan NO2 merupakan polutan yang cukup toksik apabila dihirup oleh manusia. Tujuan penelitian ini adalah mengetahui tingkat risiko kesehatan dari paparan CO, Pb, serta NO2 pada anak Sekolah Dasar di kompleks Bawakaraeng Jl. Gunung Bawakaraeng Kota Makassar. Jenis penelitian yang digunakan ialah penelitian observasional dengan rancangan Analisis Risiko Kesehatan Lingkungan (ARKL). Pengambilan sampel lingkungan dilakukan di siang hari di satu titik di kawasan Sekolah Dasar tersebut. Pengambilan sampel manusia dilakukan di wilayah yang sama pada anak sekolah dasar kelas 4, 5, dan 6 dengan menggunakan kuesioner. Populasi Lingkungan ini adalah konsentrasi CO, Pb, dan NO2. Data diolah dan dianalisis dengan menggunakan SPSS dan Microsoft Excel yang disajikan dalam bentuk tabel yang disertai dengan narasi mengenai variabel yang diteliti. Hasil penelitian menunjukkan bahwa nilai Lama pajanan (jam/hari) CO, Pb, serta NO2 terhadap anak ialah sebesar 5,5 jam/hari. Durasi pajanan (tahun) anak Sekolah Dasar Inpres Bawakaraeng Jl. Gunung Bawakaraeng Kota Makassar ialah berkisar antara 3 sampai 5 tahun. Tingkat risiko tidak aman (RQ>1) terdapat pada zat pencemar NO2 yaitu sebanyak 7 responden dan untuk zat pencemar CO dan Pb seluruh reponden masih dalam kategori aman.
Faktor yang Berhubungan dengan Perilaku Sadari Sebagai Deteksi Dini Kanker Payudara pada Mahasiswi FKM Unhas
Authors: Sarina Sarina , Thaha Ridwan M. , Nasir Sudirman
Published: December 2021

Kanker payudara merupakan jenis tumor ganas yang hingga kini masih menjadi pembunuh nomor satu dan prosesnya memakan waktu yang lama, sehingga apabila diketahui lebih dini maka dapat menekan angka kejadian kanker payudara. Salah satu pencegahan kanker payudara adalah dengan melakukan deteksi dini kanker payudara (SADARI) setiap bulan. Penelitian ini bertujuan untuk mengetahui faktor yang berhubungan dengan perilaku SADARI sebagai deteksi dini kanker payudara pada mahasiswi fakultas kesehatan masyarakat Universitas Hasanuddin. Jenis penelitian ini adalah observasional analitik dengan menggunakan desain cross sectional study. Populasi dalam penelitian ini adalah angkatan 2016 & 2017 yang berjumlah 452 mahasiswi. Besar sampel pada penelitian ini ditentukan dengan menggunakan rumus Stanley Lameshow berjumlah 75 mahasiswi. Data dikumpulkan dengan melakukan wawancara dengan menggunakan kuesioner kepada responden, kemudian diolah dengan menggunakan analisis uji chi-square.  Tingkat pengetahuan responden diperoleh nilai p=0,000, tingkat sikap dengan nilai p=0,000, tingkat dukungan keluarga p=0,001 dan tingkat keterpaparan informasi dengan nilai p=0,043 merupakan faktor yang berhubungan dengan perilaku SADARI pada mahasiswi. Diharapkan bagi mahasiswi untuk memperbanyak sumber informasi SADARI dan adanya suatu kegiatan yang menambah wawasan serta ketertarikan mahasiswa Fakultas Kesehatan Masyarakat Universitas Hasanuddin untuk lebih mengetahui pencegahan penyakit kanker payudara melalui deteksi dini dengan SADARI.
Clinical and Therapeutic Factors Affecting the Social Adaptation of Patients with Schizophrenia
Authors: Petrova N. N. , Tsyrenova K. A.
Published: December 2021

Background: сurrently, the question remains open about the factors that affect the social functioning of patients with schizophrenia, including the role of negative symptoms and neurocognitive deficits. The aim: to study factors that affect the social functioning of patients with schizophrenia. Patients and methods: 64 in-patient with schizophrenia (mean age 35.9 ± 10.9 years) were examined at the stage of remission. The disease duration was 9.71 ± 6.0 years. The majority of patients suffered from paranoid and hallucinatory-paranoid attacs (43 and 23%, respectively). The study used follow-up, clinical and psychopathological methods as well as psychometric scales: PANSS, SANS, ВАСS, Calgary scales and UKU scales. An integrative indicator was introduced to assess the social adaptation of patients. Results: it is shown that as the duration of the disease increases, the indicator of social adaptation decreases. The presence of side effects of antipsychotic therapy is associated with restrictions on the social functioning of patients, but the use of second-generation antipsychotics contributes to an increase in the level of social functioning of patients. Patients with more pronounced apathetic-abulic disorders, flattened affect, anhedonia-asociality and social isolation are characterized by a lower level of social functioning. Adapted patients differ from maladapted patients by better indicators of auditory-speech memory, motor skills, information processing speed, ability to plan and problem solving behavior. Conclusion: the integrative indicator of social adaptation of patients with schizophrenia is associated with a number of cognitive and negative symptoms, features of antipsychotic therapy and the duration of the disease.
Metabolic Syndrome in a Population of In-Patients with Schizophrenia in the Western Siberia
Authors: Kornetova E. G. , Gerasimova V. I. , Goncharova A. A. , Khamina V. V. , Mednova I. A. , Kornetov A. N. , Ivanova S. A.
Published: December 2021

Background. The relevance of this work is due to the incomplete nature of existing studies on risk factors of metabolic syndrome (MS) in patients with schizophrenia. Aim: to study the MS prevalence in schizophrenia in-patients and their clinical, therapeutic and socio-demographic features. Patients and methods: 517 in-patients diagnosed with schizophrenia according to the ICD-10 criteria were examined. All patients underwent a structured clinical interview (SCID); measurement of waist circumference, blood pressure and assessment of biochemical parameters for verification of MS based on the criteria of the IDF (International Diabetes Fediration). An assessment of the severity of clinical and psychopathological symptoms was performed using the PANSS. Results: the prevalence of MS in in-patients with schizophrenia in the Western Siberia is similar to that reported in the literature. It was found that in-patients with schizophrenia and MS are characterized by a predominance of women and older age, as well as a large proportion of divorced, and a smaller proportion of never married. Women with MS were older, got longer duration of illness, and got later onset of disease than men with MS. The age of disease onset was significantly greater in patients with MS than in patients without MS. Atypical antipsychotics were more often used as the basic antipsychotic treatment in the group of patients with MS but this difference between the groups did not reach statistical significance. Conclusions: the main risk factors in patients with schizophrenia and MS coincide with risk factors of MS in general population. A later onset of the disease can act as an independent risk factor. The relationship and mutual influence of risk factors for the development of MS in patients with schizophrenia needs further study.
RETROFITTING DETENTION BUILDINGS OF HISTORICAL-CULTURAL INTEREST. A CASE STUDY IN ITALY
Authors: Pennisi Silvia
Published: December 2021

Penitentiary buildings in Italy include many buildings of undoubted historical and architectural importance. These have been, or will soon be, subject to structural changes necessary to adapt their spaces to the current regulations of prisons.
The idea of punishment itself has changed over the centuries, so it is a physiological necessity to adapt existing buildings accordingly. When, however, such buildings date back centuries, they should not be considered a mere container but a historical testimony rich in meaning for the entire nation. The characteristics of the materials, distribution, and what these buildings have represented for the city should be the object of study and protection, whereas, at present, their historical-architectural qualities are often ignored and distorted with interventions that should often be better studied and evaluated. The article takes its cue from the description of the recovery of a Sicilian prison that was built in the early twentieth century and which is considered emblematic. The type of construction and its distribution reflect a multitude of historical meanings, as evidence of architecture too often underestimated, that of prisons. The aim of this illustrated paper is to study methods and propose solutions to safeguard these buildings that, while respecting current regulations on detention, can also let everyone in the future “read” the history of our civilization through this important architectural heritage.
ITALIAN TEMPORARY PREFABRICATED CONSTRUCTIONS (1933-1949). PROJECTS, PATENTS AND PROTOTYPES
Authors: Greco Laura
Published: December 2021

The study considers solutions and systems for temporary and prefabricated constructions developed in Italy in the 1930s and 1940s. Companies such as L’Invulnerabile, Curtisa, Legnami Pasotti, Giuseppe Palini e Figli, Fratelli Ravelli proposed easy to assemble, changeable, and in many cases, dismountable buildings destined to the 1930s Italian and colonial markets. The survey aims to reconstruct different cases, highlighting both the premises that determined the vanguard of the post-war debate on building industrialization and the factors that constrained further developments of the pioneering phase analysed. The study starts with the V Triennale of Milan (1933) and develops in the colonial season in East Africa, enriched with applications in the Alpine areas, before finally considering some proposals that were presented at the Consiglio Nazionale delle Ricerche exhibition on prefabricated houses in 1945 and the development of some patents by manufacturers specialised in this building sector. The buildings were intended for houses and offices of the Istituto Nazionale delle Assicurazioni and the Azienda Mineraria Africa Orientale in the colonial areas, for bivouacs of the Club Alpino Italiano, and for prefabricated houses advanced in the Second post-World War period by Società Anonima Legnami Pasotti and by L’Invulnerabile. The study, based on the clients’ archives (Istituto Nazionale delle Assicurazioni, Azienda Mineraria Africa Orientale, Club Alpino Italiano), technical documentation, and patents of the manufacturing companies, favours the examination of the production and assembly process.
RELATIONSHIP BETWEEN BUILDING TYPE AND CONSTRUCTION TECHNOLOGIES IN THE FIRST FRIULI VENEZIA GIULIA HYDROELECTRIC PLANTS
Authors:   Livio Petriccione, Francesco Chinellato, Umberto Turrini and Angelo Bertolazzi, Giorgio Croatto
Published: December 2021

The paper focuses on the hydroelectric plants in Friuli Venezia Giulia, especially those along the Cellina and Meduna rivers. The technological revolution of water exploitation to produce electricity led to the construction of these buildings between the 19th and 20th centuries; their different structural, technical, architectural, and engineering features became interesting case studies for such industrial heritage. The research analyzed the main features of the power plants built along the Cellina (Malnisio, Giais, Partidor, and San Foca) and Meduna (Meduno, Colle, Istrago, Chievolis, and Valina) rivers, from an architectural, formal, functional, and constructive point of view. The study of these iconic buildings, one infrastructure system related to the “waterways”, allows them to be placed within the logic of settlement and production phenomena, and by reinterpreting them in a modern key makes possible refurbishment strategies with actualized needs and functions.
DIGITAL MODELS FOR DECISION SUPPORT IN THE FIELD OF ENERGY IMPROVEMENT OF UNIVERSITY BUILDINGS
Authors:   Cristina Cecchini, Marco Morandotti
Published: December 2021

According to the most recent provisions of the European Union, public buildings should play an exemplary role in sustainable development, adopting accelerated renovation rates aimed at improving their energy performance.
Within this category, university buildings are a case study of great interest to experiment with new approaches for energy refurbishment and sustain-able management of architectural assets. The research presents a work-flow that originates from easily available input data, to reach the definition of a multi-scale spatial database, founded on the synergy between GIS (Geographic Information System) and BIM (Building Information Mod-eling) and defined according to standard and shared data models. Tools of this kind are crucial for promoting efficient information management building assets, by organizing data into navigable three-dimensional mod-els. In addition to the clear benefits associated with structured archiving, the provision of a relational database makes it possible to capitalize on the already available knowledge and to activate decision support tools for comparative assessment of transformation scenarios. In particular, the use of the cost-optimal methodology is proposed: it is a multi-criteria assess-ment aimed at identifying a set of optimal energy refurbishment solutions concerning energy consumption and management costs. The paper pres-ents the methodological framework and examines its application at differ-ent scales, from the case of the University of Pavia real estate asset to the application to a single building complex.
THE SYNTHETIC THERMAL INSULATION PRODUCTION CHAIN MOVING TOWARDS A CIRCULAR MODEL AND A BIM MANAGEMENT
Authors:   Ornella Fiandaca, Alessandra Cernaro
Published: December 2021

One of the most debated issues of sustainability in the last century concerned the insulation layer, placing it at the center of technological innovation with a primary role in the design of the building shell; this change has generated an increasingly complex functional model. Its nature, morphology, and location guided the most appropriate choice: vegetable, animal, mineral or synthetic; inconsistent, panel or mat; in external, of interspace or internal position; until now, the products selection has been based on energy savings during the management phase of the building and not looking at production and disposal. This study, expanding the look at the life cycle of thermal insulators, focused on the most controversial in terms of sustainability, those of “plastic” derivation to understand with a correlative method: the trends prepared by companies to reduce “from cradle to gate” the use of fossil resources, the carbon footprint, the amount of water and energy consumed; what are the resolutions adopted to respond, with a renewed “conscious” production, to the Minimum Environmental Criteria (CAM Italian acronym) required in the Green Public Procurement (extended by virtue of state incentives also to private construction); the opening of the production system to industry 4.0 which will require a BIM (Building Information Modelling) approach for any type of intervention. After an extensive exploration to select a sample of synthetic thermal insulators, emblematic of the recent path of sustainable innovation, three investigations were undertaken aimed at highlighting: the congruity of performance of the winter and summer thermo-hygrometric profile; compliance with CAM but more extensively the attestation of their bio-ecological vocation; the conception of BIM objects for immediate use in the professional field. The results, although not homogeneous, have highlighted a great ferment in the sector, with a very promising technological level of some production lines to resolve prejudices and closures towards the synthetic thermal insulators.
Historical and Contemporary Psychoanalytic and Bioenergetic Perspectives of Sexuality
Authors: Resneck-Sannes Helen
Published: December 2021

In the late 60s and 70s sexuality occupied center stage in psychoanalysis and then retreated as a focus of inquiry. The increase of claims against therapists for sexual violations, as well as the emergence of more relational analytic therapies, contributed to the avoidance of addressing sexuality in the therapy room. During this time, the psychoanalytic definition of «normal” sexuality was evolving, as well as our notions of gender. Reichian psychotherapy, and its offshoot Bioenergetic Analysis have always seen sexuality as integral to the healthy functioning of the individual. This paper translates current psychoanalytic concepts of healthy sexuality into its somatic counterparts in bioenergetic theory. A case is presented illustrating how these concepts manifest in practice. Exploring sexual fantasies and clients’ preferences for certain types of pornography is viewed as helpful for understanding the dynamics of parenting, and for clarifying transferential and countertransferential issues.
La misteriosa energía de la vida
Authors: Hafstad Arild
Published: December 2021

En este artículo, se explora la validación empírica del concepto bioenergético por medio de un ensayo aleatorio controlado sobre la caja orgónica. Para mejorar la validez del concepto, el autor basa el concepto de bioenergética en los principios físicos y en el metabolismo, combinados con los principios del Análisis Bioenergético. El ensayo apoya el concepto bioenergético demostrando que una estimulación «contextual” (en la caja orgónica) puede aumentar la cantidad de energía libre en el organismo humano, indicando su influencia en el sistema bioenergético humano. Estos estudios demuestran que el sistema bioenergético humano está sometido a la influencia del entorno. La teoría orgónica tiene debilidades formales y una estrategia científica correcta debe dar prioridad a examinar en primer lugar los dispositivos experimentales.
A case study of epistemic order in mathematics classroom dialogue

Authors: Ruthven Kenneth , Hofmann Riika
Published: December 2021

We define epistemic order as the way in which the exchange and development of knowledge takes place in the classroom, breaking this down into a system of three components: epistemic initiative relating to who sets the agenda in classroom dialogue, and how; epistemic appraisal relating to who judges contributions to classroom dialogue, and how; and epistemic framing relating to the terms in which development and exchange of knowledge are represented, particularly in reflexive talk. These components are operationalised in terms of various types of structural and semantic analysis of dialogue. It is shown that a lesson segment displays a multi-layered epistemic order differing from that of conventional classroom recitation. Un estudio de caso del orden epistémico en el discurso de la clase de matemáticas Definimos orden epistémico como el modo en que se produce el intercambio y desarrollo de conocimiento en el aula, de acuerdo con un sistema de tres componentes: iniciativa epistémica respecto a quién y cómo establece la agenda del diálogo de clase; evaluación epistémica respecto a quién y cómo valora las contribuciones a este diálogo; y marco epistémico respecto a los términos en los cuales el desarrollo e intercambio de conocimiento se representa, particularmente en el habla reflexiva. Operativizamos estos componentes mediante varios tipos de análisis estructurales y semánticos del diálogo. Con los datos de un segmento de clase, se muestra un orden epistémico de múltiples niveles que difiere de formatos convencionales de relato en el aula.Handle: http://hdl.handle.net/10481/42388WOS-ESCINº de citas en WOS (2017): 1 (Citas de 2º orden, 0)Nº de citas en SCOPUS (2017): 1 (Citas de 2º orden, 0)
Route description in Iwaidja: grammar and conceptualisation of motion

Authors: Edmonds-Wathen Cris
Published: December 2021

This study focussed on the effect of grammar of Iwaidja, an indigenous Australian language, on mathematical conceptualisation. It investigated route description in Iwaidja. Spatial concepts such as direction, height and movement in relation to another object are briefly described using examples. Differences between English and Iwaidja are used to illustrate the some of the impact of grammar on mathematical conceptualisation. The implications are discussed in terms of how understanding these grammatical features can help teachers, especially when children are not fluent in the language of instruction, as well as providing keys to cross-linguistic investigations of mathematical cognition. Descripción de ruta en Iwaidja: gramática y conceptualización del movimiento Este estudio se centró en el efecto de la gramática de iwaidja, una lengua indígena de Australia, en la conceptualización matemática. Se investigó la descripción de ruta en esta lengua. Conceptos espaciales tales como dirección, altura y el movimiento en relación con otro objeto, se describieron utilizando ejemplos. Diferencias entre el inglés y el iwaidja son usadas para ilustrar el impacto de la gramática en la conceptualización matemática. Las implicaciones consideran cómo la comprensión de estas características gramaticales puede ayudar a los maestros, sobre todo cuando los niños no hablan con fluidez el idioma de la instrucción, así como proporcionar claves para investigaciones translingüística de la cognición matemática.Handle: http://hdl.handle.net/10481/42390WOS-ESCI
Analysis of the underlying cognitive activity in the resolution of a task on derivability of the absolute-value function: two theoretical perspectives

Authors: Pino-Fan Luis Roberto , Guzmán Ismenia , Font Vicenç , Duval Raymond
Published: December 2021

This paper presents a study of networking of theories between the theory of registers of semiotic representation (TRSR) and the onto-semiotic approach of mathematical cognition and instruction (OSA). The results obtained show complementarities between these two theoretical perspectives, which might allow more detailed analysis of the students’ performance.Análisis de la actividad cognitiva subyacente en la resolución de una tarea sobre la derivabilidad de la función valor absoluto: dos perspectivas teóricas En este artículo se presenta un estudio de networking of theories, entre la teoría de los registros de representación semióticos (TRRS) y el enfoque onto-semiótico de la cognición e instrucción matemáticos (OSA). Los resultados obtenidos revelan complementariedades entre estas dos perspectivas teóricas cuya aplicación simultánea permitiría hacer análisis más pormenorizados de las producciones de los estudiantes.Handle: http://hdl.handle.net/10481/44148WOS-ESCIScopus record and citations
Puntualizaciones y reflexiones sobre algunos conceptos específicos y centrales en la teoría semiótico cultural de la objetivación
Authors: D' Amore Bruno
Published: December 2021

En este trabajo se consideran algunos de los términos de mayor difusión usados en la descripción de la teoría semiótico cultural de la objetivación haciendo un análisis filosófico/epistemológico sobre la base de las acepciones sugeridas por diversos autores. El objetivo es contribuir a una clarificación que no quiere ser sólo terminológica, sino también significativa de la objetivación, saber y ontología, conocer y gnoseología, labor, semántica y comunicación.Clarifications and Reflections on Some Specific and Central Concepts in the Semiotic Cultural Theory of ObjectivityIn this paper we examine some of the most common terms used in the theory of knowledge objectification to carry out a philosophical/epistemological analysis based on several meanings suggested by different authors. The objective is to contribute to a clarification that does not want to be only terminological, but also meaningful of the objectification, knowledge and ontology, knowledge and gnoseology, work, semantics and communication.Handle: http://hdl.handle.net/10481/49441Scopus record and citations
Estudio del conocimiento de profesores de secundaria sobre procesos matemáticos
Authors: Loría José Romilio , Lupiáñez Gómez José Luis
Published: December 2021

Analizamos el conocimiento de profesores de matemáticas de Educación Secundaria sobre la realización de procesos matemáticos en el aula para apoyar el desarrollo de la competencia matemática de los estudiantes. Para ello, identificamos y describimos los cambios en los conocimientos, capacidades y actitudes del profesorado, relacionados con el uso de procesos matemáticos en el diseño de tareas, a partir de su participación en una propuesta formativa con base en la reforma curricular en matemáticas en Costa Rica. Observamos que los profesores desarrollaron capacidades para vincular habilidades, procesos y competencias, justificar esta vinculación y, diseñar y seleccionar tareas que la atendieran.Handle: http://hdl.handle.net/10481/57624Scopus record and citations
Enseñanza de la estadística y la probabilidad de los 4 a los 8 años de edad: una aproximación desde los procesos matemáticos en libros de texto chilenos
Authors: Vásquez Ortiz Claudia , Coronata Segure Claudia , Rivas Catricheo Hernán
Published: December 2021

Se analiza la presencia de los procesos matemáticos en las tareas matemáticas propuestas en tres series de libros de texto de educación infantil y primaria chilenos que buscan promover el aprendizaje de la estadística y la probabilidad. En general, se observa un desbalance entre los distintos procesos matemáticos, con predominio de la resolución de problemas y la representación. Evidenciando la necesidad de avanzar en el diseño de trayectorias de enseñanza y aprendizaje que promuevan el desarrollo de la alfabetización estadística y probabilística a través de los distintos procesos desde las primeras edades.
Toma de decisiones en el aula: estudios de caso de profesores de matemáticas.
Authors: Pinzón Andrés , Gómez Pedro
Published: December 2021

La toma de decisiones del profesor es un foco importante de investigación de la cognición del profesor. En este artículo presentamos evidencia, a través de un estudio de casos de tres profesores de matemáticas, de cómo un modelo de toma de decisiones del profesor ante situaciones inesperadas permite describir este proceso a partir de cinco elementos: situación inesperada, propósito, las opciones consideradas, la valoración y la selección de una opción y la secuencia de acciones. Pudimos interpretar todas las situaciones analizadas con base en el modelo y consideramos que este puede usarse a futuro en estudios que permitan caracterizar los procesos de toma de decisiones de los profesores en estas situaciones.
A review of research trends in mathematics teacher education

Authors: Sánchez Mario
Published: December 2021

This article presents a literature review in the field of mathematics teacher education research. The review focuses on identifying the main research trends in this field, that is, the main research topics that the mathematics teacher educators’ community is currently addressing, and the main theoretical concepts used to study these topics. One of the contributions of the review is that it identifies new research trends that have not been previously reported. Some of these trends are online mathematics teacher education, and the design and role of tasks in mathematics teacher education. Una revisión de las tendencias de investigación en la formación de profesores de Matemáticas Este artículo presenta una revisión de la literatura en el campo de la investigación en formación de profesores de matemáticas. La revisión se centra en identificar las principales tendencias de investigación en este campo, es decir, los principales temas de investigación que la comunidad de formadores de profesores está abordando actualmente, así como los principales conceptos teóricos usados para estudiar esos temas. Una de las contribuciones de esta revisión es que se identifican tendencias de investigación que no han sido reportadas previamente. Algunas de estas tendencias son la formación online de profesores de matemáticas y el diseño y rol de las tareas en la formación de profesores de matemáticas.Handle: http://hdl.handle.net/10481/15312Nº de citas en WOS (2017): 3 (Citas de 2º orden, 3)Nº de citas en SCOPUS (2017): 6 (Citas de 2º orden, 4)
On the development of early algebraic thinking

Authors: Radford Luis
Published: December 2021

This article deals with the question of the development of algebraic thinking in young students. In contrast to mental approaches to cognition, we argue that thinking is made up of material and ideational components such as (inner and outer) speech, forms of sensuous imagination, gestures, tactility, and actual actions with signs and cultural artifacts. Drawing on data from a longitudinal classroom-based research program where 8-year old students were followed as they moved from Grade 2 to Grade 3 to Grade 4, our developmental research question is investigated in terms of the manner in which new relationships between embodiment, perception, and symbol-use emerge and evolve as students engage in patterning activities. Sobre el desarrollo de pensamiento algebraico temprano Este artículo aborda la cuestión del desarrollo del pensamiento algebraico en estudiantes jóvenes. En contraste con los enfoques mentales de la cognición, sostenemos que el pensamiento está compuesto por componentes materiales y del mundo de las ideas tales como el discurso (interior y exterior), formas de imaginación sensitiva, gestos, tacto y acciones reales con signos y artefactos culturales. Con base en datos obtenidos de un programa de investigación longitudinal basado en el aula en el que se siguió el paso de estudiantes de 8 años de segundo grado a tercero y a cuarto, nuestra pregunta de investigación acerca del desarrollo es investigada en términos de la forma en que surgen y evolucionan nuevas relaciones entre el cuerpo, la percepción y el inicio del uso de símbolos a medida que los estudiantes participan en actividades sobre patrones.Handle: http://hdl.handle.net/10481/20052Nº de citas en WOS (2017): 3 (Citas de 2º orden, 3)Nº de citas en SCOPUS (2017): 6 (Citas de 2º orden, 21)
Exploring young students' functional thinking

Authors: Warren Elizabeth , Miller Jodie , Cooper Thomas J.
Published: December 2021

The Early Years Generalizing Project (EYGP) involves Australian years 1 to 4 (age 5 to 9) students and investigates how they grasp and express generalizations. This paper focuses on data collected from 6 Year 1 students in an exploratory study within a clinical interview setting that required students to identify function rules. Preliminary findings suggest that the use of gestures (both by students and interviewers), self-talk (by students), and concrete acting out, assisted students to reach generalizations and to begin to express these generalities. It also appears that as students became aware of the structure, their use of gestures and selftalk tended to decrease.Exploración del pensamiento funcional de estudiantes jóvenesEl Early Years Generalizing Project (EYGP) implica a estudiantes de primer a cuarto curso de la educación primaria australiana (de 5 a 9 años) e investiga cómo comprenden y expresan las generalizaciones. Este artículo se centra en los datos recogidos de 6 estudiantes de primer curso en un estudio exploratorio con entrevista clínica que requería que los estudiantes identificaran patrones funcionales. Los resultados preliminares sugieren que el uso de los gestos (de estudiantes y entrevistadores), las conversaciones con ellos mismos (de estudiantes), y las actuaciones concretas, ayudaron a los estudiantes a buscar generalizaciones y a comenzar a expresar estas generalidades. También parece que cuando los estudiantes tomaron conciencia de la estructura, el uso de gestos y de las conversaciones con ellos mismos tendió a disminuir.Handle: http://hdl.handle.net/10481/22369Nº de citas en WOS (2017): 3 (Citas de 2º orden, 3)Nº de citas en SCOPUS (2017): 1 (Citas de 2º orden, 0)
The experience of security in mathematics
Authors: Charalampous Eleni , Rowland Tim
Published: December 2021

In this paper, we report some findings from an investigation of a topic related to affect and mathematics which is not well-represented in the literature. For some mathematicians, mathematics itself is a source of security in an uncertain world, and we investigated this feeling and experience in the case of 19 adult mathematicians working in universities and schools in Greece. The focus reported here is on ways that a relationship with mathematics offers a sense of permanence and stability on the one hand, and an assurance of novelty and progress on the other.La experiencia de la seguridad en matemáticasEn este trabajo presentamos algunos resultados de una investigación sobre un tema relacionado con el afecto y las matemáticas que no está bien repre-sentado en la literatura. Para algunos matemáticos, las matemáticas en sí mismas son una fuente de seguridad en un mundo incierto; nosotros investi-gamos este sentimiento y experiencia en el caso de 19 matemáticos adultos que trabajan en universidades y escuelas de Grecia. El foco de este artículo es en las maneras en que una relación con las matemáticas ofrece un sentido de permanencia y estabilidad por una parte, y garantía de novedad y progreso, por otra.Handle: http://hdl.handle.net/10481/24790
Digital technology in mathematics education: why it works (or doesn’t)

Authors: Drijvers Paul
Published: December 2021

The integration of digital technology confronts teachers, educators and researchers with many questions. What is the potential of ICT for learning and teaching, and which factors are decisive in making it work in the mathematics classroom? To investigate these questions, six cases from leading studies in the field are described, and decisive success factors are identified. This leads to the conclusion that crucial factors for the success of digital technology in mathematics education include the design of the digital tool and corresponding tasks exploiting the tool’s pedagogical potential, the role of the teacher and the educational context.La tecnología digital en educación matemática: por qué funciona (o no)La integración de la tecnología digital enfrenta a profesores, formadores de profesores e investigadores a muchas preguntas. ¿Cuál es el potencial de las TIC en el aprendizaje y la enseñanza, y qué factores son determinantes al trabajar en clase de matemáticas? Para investigar estas cuestiones, se describen seis casos de estudio prominentes en el área, y se identifican los factores decisivos para el éxito. Esto lleva a la conclusión de que los factores cruciales para el éxito de la tecnología digital en la educación matemática incluyen el diseño de la herramienta digital y de las tareas apropiadas que exploren el potencial pedagógico de la herramienta, el papel del profesor y el contexto educativo.Handle: http://hdl.handle.net/10481/27880Nº de citas en WOS (2017): 2 (Citas de 2º orden, 1)
La convicción, la comprensión y las prácticas de racionalidad en la primaria. Estudio del profesor

Authors: Rigo Mirela
Published: December 2021

En este artículo se aportan evidencias empíricas de que la convicción que el profesor experimenta en torno a los contenidos matemáticos que surgen en clase —en interacción con su nivel de comprensión— incide en las prácticas matemáticas de sustentación que él ahí promueve. Los datos empíricos, provenientes de un estudio exploratorio de caso realizado en un escenario natural de clase, se analizan con un instrumento para identificar convicciones matemáticas. Este instrumento se elaboró en el marco de la investigación cuyos resultados parciales aquí se exponen.Conviction, Comprehension and Rationality Practices in Primary School. A Teacher StudyEmpirical evidence is provided in the paper to support the idea that the conviction experienced by the teacher with respect to the mathematics contents that arise in class —in interaction with his level of comprehension— has an impact on the mathematics practices of sustentation that the teacher promotes. The empirical data, that come from an exploratory case study, undertaken in a natural classroom scenario are analyzed using an instrument to identify mathematics convictions. This instrument was designed within the framework of the research presented here.Handle: http://hdl.handle.net/10481/30510
Mathematics teachers’ ideas about mathematical models: A diverse landscape

Authors: Bautista Alfredo , Wilkerson-Jerde Michelle H. , Tobin Roger G. , Brizuela Bárbara M.
Published: December 2021

This paper describes the ideas that mathematics teachers (grades 5-9) have regarding mathematical models of real-world phenomena, and explores how teachers’ ideas differ depending on their educational background. Participants were 56 United States in-service mathematics teachers. We analyzed teachers’ written responses to three open-ended questions through content analysis. A varied landscape of ideas was identified. Teachers referred to different entities as constituting models, expressed different ideas about whether data points can be part of models, and whether models convey more information than data. Interesting differences according to educational background were identified, especially between teachers with and without mathematics backgrounds.Ideas de profesores de matemáticas sobre modelos matemáticos: un panorama diversoEste artículo describe las ideas que tienen profesores de matemáticas (grados 5-9) acerca de los modelos matemáticos de fenómenos del mundo real y explora cómo esas ideas difieren dependiendo de la formación académica de los profesores. Analizamos las respuestas de 56 profesores en ejercicio estadounidenses a tres preguntas abiertas, mediante un análisis de contenido. Identificamos un panorama variado de ideas sobre las entidades que constituyen el modelo matemático, sobre si los datos pertenecen o no al modelo, y sobre si el modelo es más o menos informativo que los datos. Encontramos diferencias interesantes entre profesores con y sin formación matemática.Handle:  http://hdl.handle.net/10481/33231
Mathematical meaning-making and its relation to design of teaching

Authors: Jaworski Barbara
Published: December 2021

This paper addresses the design of teaching to promote engineering students’ conceptual understanding of mathematics, and its outcomes for mathematical meaning-making. Within a developmental research approach, inquiry-based tasks have been designed and evaluated, through the use of competencies proposed for their potential to promote conceptual learning. A sociocultural frame draws attention to interactions between different cultural elements to address challenges to teaching related to student perspectives and the math-ematical meanings they develop. The paper recognizes tensions between design of inquiry-based practice and the outcomes of that practice, and demonstrates the need for new research to address mathematical meanings of a student community within a sociocultural frame.Creación de significado matemático y su relación con el diseño en la enseñanzaEn este trabajo se aborda el diseño de la enseñanza para promover la comprensión conceptual de las matemáticas por parte de estudiantes de ingeniería, y sus resultados para crear significado matemático. Dentro de un enfoque de investigación del desarrollo, las tareas se han diseñado y evaluado a través del uso de competencias propuestas por su potencial para promover aprendizaje conceptual. Un marco sociocultural llama la atención sobre las interacciones entre los diferentes elementos culturales para hacer frente a los retos de la enseñanza en relación a las perspectivas de los estudiantes y los significados matemáticos que desarrollan. El artículo reconoce las ten-siones entre el diseño de la práctica basada en la investigación y los resultados de esa práctica, y demuestra la necesidad de nuevas investigaciones para abordar los significados matemáticos de una comunidad estudiantil dentro de un marco sociocultural.Handle: http://hdl.handle.net/10481/36050WOS-ESCI
Study of the Efficiency of Using Type 5 Phosphodiesterase Inhibitors in the Therapy of Ereсtile Dysfunction in Patients with Metabolic Syndrome
Authors: Gurzhenko Yurii
Published: December 2021

Metabolic syndrome is a symptom complex that combines abdominal obesity, insulin resistance, hyperglycemia, dyslipidemia and arterial hypertension. One of the complications of metabolic syndrome is sexual dysfunction in men.
The objective: is to evaluate the efficacy and tolerability of udenafil 200 mg in the treatment of erectile dysfunction in patients with metabolic syndrome.
Materials and methods. The clinical efficacy of the IV generation PDE-5 inhibitor medicine udenafil in 76 patients with erectile dysfunction of mixed origin and with metabolic syndrome in dynamics was studied. The average age was 51,6±8,2 years. The observation period was 12 weeks, but the control of metabolic syndrome parameters (anthropometry, review, biochemical blood tests) and the assessment of erectile function were carried out for 6 months.
Results. After 12 weeks, patients achieved positive results in weight loss, BMI and waist circumference, although not significantly. It is necessary to note the positive changes in the indicators of the cardiovascular system. The downward trend was demonstrated by such indicators as heart. Diet therapy and taking statins have improved the indicators of fat metabolism. Correction of metabolic disorders in patients was accompanied by an increase in total and free testosterone. However, there was no statistically significant difference in the degree of increase in the concentration of androgens. Correction of metabolic disorders in patients was accompanied by an increase in total and free testosterone.
During treatment, almost all integrative indices of IIEF increased. Specifically, the index «erectile function» improved 2,26 times (p<0,01), «satisfaction with intercourse» 2,59 times (p<0,001), «orgasm» 2,0 times (p<0,01), «libido» – 2,9 times (p<0,001), «general satisfaction» 2,3 times (p<0,01). According to various indicators, the sexual function of men with metabolic syndrome and erectile dysfunction improved 2–2,9 times. Changes in cavernous blood flow on Doppler ultrasonography showed an increase in peak systolic blood flow rate by 1,5 times, which is associated with the udenafil half-life. Our data indicate that the use of the medicine udenafil is perspective in men with erectile dysfunction and metabolic syndrome and in those who do not have stable family-sexual relations to ensure spontaneity of sexual relations.
Conclusions. Udenafil can be considered as a first-line medecine in the treatment of erectile dysfunction in patients with metabolic syndrome.
MАR-test and Spermiological Research Indices
Authors: Vladychenko Konstantin , Fedoruk Oleksandr , Yuzko Victoria , Andriyets Anatolii
Published: December 2021

Antisperm antibodies are detected in 3% to 25% of cases in men and women diagnosed with infertility. They can also be diagnosed in 1–10% of healthy fertile men. The presence of a high titer of AST is one of the factors of male infertility, which can be «hidden», i. e. not cause symptoms and deterioration of the overall spermogram.
The objective: to analyze the results of sperm testing in men with antisperm antibodies, which were detected by MAR-test.
Material and methods. A retrospective analysis of the examination results of 555 men was conducted on the basis of the Medical Center for Infertility Treatment in Chernivtsi. Spermograms were examined according to WHO recommendations in 2000, using an inverted microscope Olympus CKX41 in a Broker chamber. Determination of the percentage of sperm coated with antisperm antibodies was performed using the MAR-test (MAR-test, MAR-mixed antiglobulin reaction).
Results. If we calculate the percentage of patients in whom we assume the connection between the presence of antisperm antibodies and undertaken surgery, genital infections and allergy history, we get only 48.3% of cases. It has been found that most changes in sperm counts correlate with the percentage of sperm that are coated with IgG. These data indicate that increased IgG levels play an important role in the development of pathospermia. A negative medium-strength correlation was found between the percentage of Category A sperm and the percentage of IgG-coated sperm.
Persistence of IgG in semen is accompanied by a probable decrease in the morphological quality of sperm.
Conclusion. In 52% of patients it was not possible to establish the etiological factor for the presence of Ig in the ejaculate. It has been found that most changes in sperm counts correlate with the percentage of sperm that are coated with IgG. It has been determined that an increase in the level of IgA and IgG leads to a probable increase in the percentage of pathological sperm forms and decrease in sperm motility. In the presence of 30% of sperm that are coated with IgG, with a probability of 95%, the ejaculate of patients will have 100% of pathologicoalr mf s of sperm.
Hypersexual Behavior Due to Premature Psychosexual Development: Clinical Examples
Authors: Kocharyan Garnik
Published: December 2021

The article contains 3 clinical examples, which demonstrate possible appearance of hypersexuality, caused by premature psychosexual development. The first case (observed by the author) deals with a 13-year-old teenager, who was adopted at the age of 9. His birth mother (BM), who was deprived of parental rights, abused alcoholic beverages. BM had sexual intercourses with men, while her son was with her in the same bed. Besides approximately from the age of 6–7 years she sucked his penis. Soon after his adoption the boy climbed up on his lying adoptive mother (AM), with whom he lived together in one flat, and began pressing his lips to hers (“he lied like a male on a female”).
Once, when they were visited by AM relatives and it was necessary to distribute, who would sleep with whom, a decision was made that the adopted son (AS) would sleep with a 7-year-old adopted grandson (AG) of AM. Then AS was 12 and he, as it was found out later, made an attempt to insert his erected penis into the anus of AG, but the latter managed to writhe himself free. At the same age of 12 he attempted a sexual intercourse with a native granddaughter of AM (a little girl), who told her grandmother about it. Then they found a significant amount of blood on her panties and genitals, and decided that he deflowered her. But as a result of forensic examination it was revealed that the blood on the granddaughter’s panties and genitals was not hers, but belonged to AS, whose attempt to insert his penis into her vagina resulted in a rupture of his penile frenulum, that made him stop any further sexual actions. AM informed that AS constantly peeped at her when she was naked or scantly dressed. He did the same with her granddaughter, after what she refused to visit them. Now, in order not “to be in the cross hairs”, AM takes a bath only after he leaves for school.
As a result of his talk with AM and examination of AS the author has concluded that the patient has sexual disinhibition associated with his premature psychosexual development, the latter being caused by sexually molesting behaviour on the part of the child’s BM. The second and third cases (observations by other authors) also deal with hypersexual behaviour, caused by premature psychosexual development.