42 research outputs found

    A atuação e a formação de professores em sociedades conectadas: profissionais da rede municipal de ensino em Passo Fundo – RS

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    The bias of the present study is focused on the performance of teachers and their pedagogical practice. Considering this context, the main objective is to analyze through a quantitative research, asking to what extent teachers feel prepared to work in the classroom, since such preparation must start at graduation and be continuous throughout their career, including in the institution where the professional works. Thus, the research that follows, in terms of its nature, is an applied research. With regard to the objective explored, it is an exploratory research, with qualitative and quantitative characteristics. In addition to this field research, the following authors were used for the theoretical foundation: Dewey (1952 and 1959), Demo (1996), Gatti (2011), Giddens (2002) and Lévy (1992 and 1999). The research was carried out in the city of Passo Fundo-RS, with teachers from the final grades of Elementary School I, fourth and fifth year, respectively. The results obtained bring an alert regarding this preparation, given that they indicate the need for more training focused on active methodologies and surrounded by technology, so that learning is meaningful and consistent with the reality of 21st century society.  El sesgo del presente estudio se centra en el desempeño de los docentes y su práctica pedagógica. Teniendo en cuenta este contexto, el objetivo principal es analizar a través de una investigación cuantitativa, cuestionándose a los docentes en qué medida se sienten preparados para trabajar en el aula, ya que dicha preparación debe comenzar en la graduación y ser continua a lo largo de su carrera, incluso en la institución donde el profesional trabaja. Así, la investigación que sigue, en cuanto a su naturaleza, es una investigación aplicada. Con respecto al objetivo explorado, se trata de una investigación exploratoria, con características cualitativas y cuantitativas. Además de esta investigación de campo, para la fundamentación teórica se utilizaron los siguientes autores: Dewey (1952 y 1959), Demo (1996), Gatti (2011), Giddens (2002) y Lévy (1992 y 1999). La investigación se llevó a cabo en la ciudad de Passo Fundo-RS, con profesores de los grados finales de la Educación Primária, cuarto y quinto años, respectivamente. Los resultados obtenidos alertan sobre esta preparación, ya que indican la necesidad de mejor formación centrada en metodologías activas y rodeadas de tecnología, para que el aprendizaje sea significativo y acorde con la realidad de la sociedad del siglo XXI.  O viés deste estudo volta-se para a atuação de professores e a sua prática pedagógica. Considerando este contexto, tem-se em pauta como objetivo principal: analisar, através de uma pesquisa quantitativa, em que medida os professores se sentem preparados para atuar em sala de aula, uma vez que tal preparo deve se iniciar na graduação e ser contínuo ao longo de suas carreiras, inclusive nas instituições onde atuam. Desta forma, segue-se uma pesquisa aplicada quanto à natureza da prática pedagógica. No que se refere ao objetivo explorado, é uma pesquisa exploratória, com características quali-quantitativas. Para além desta pesquisa de campo, foram utilizados os seguintes autores para a fundamentação teórica: Dewey (1952 e 1959), Demo (1996), Gatti (2011), Giddens (2002) e Lévy (1992 e 1999). A pesquisa foi realizada no município de Passo Fundo–RS, com professores das séries finais do Ensino Fundamental I – quarto e quinto ano, respectivamente. Os resultados obtidos trazem um alerta em relação a essa preparação, haja vista indicarem a necessidade de mais formações voltadas às metodologias ativas e envoltas de tecnologia, para que o aprendizado seja significativo e condizente com a realidade da sociedade do século XXI

    On the effect of the temperature-humidity index on buffalo bulk milk composition and coagulation traits

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    Little is known about the effects of high levels of environmental temperature and humidity on milk yield and quality in buffaloes since this species is known to be more heat tolerant than cattle. However, the distribution of sweat glands and the dark skin color can negatively affect heat tolerance. Moreover, due to increased global temperatures, concerns regarding heat stress and thermoregulation in dairy animals, including buffaloes, have been extended to the northern hemisphere. In this study, the effects of both the temperature-humidity index (THI) and the maximum daily temperature-humidity index (MTHI) were estimated on bulk milk traits, namely fat, protein, lactose, urea content, pH levels, somatic cell score, coagulation properties, and bacteria count. The dataset consisted of repeated data from 99 Mediterranean water buffalo farms, and mixed models were used for the analyses. Supporting the negative correlations observed, bulk milk fat, protein, and lactose content were significantly lower when THI and MTHI were higher. Similarly, milk pH was lower when THI and MTHI were high; however, high levels of THI or MTHI seemed to not be markedly associated with the milk’s coagulation ability. According to both analysis of variance and correlations, the somatic cell score was not significantly affected by the THI and MTHI. This is the first study based on a large dataset that evaluates the impact of high temperature and humidity in Italian buffalo milk and that provides correlations with traits of interest for the dairy industry, i.e., milk acidity and coagulation ability. In general, findings show that the effects of elevated THI and heat stress on bulk milk quality in buffalo is less evident than in cattle. These preliminary results intend to open debate on the issue of heat stress in dairy buffaloes that are reared in temperate regions. Further studies should focus on individual milk and performance and should investigate the relationship between high THI and buffalo fertility, behavior, and welfare

    ITALIAN CANCER FIGURES - REPORT 2015: The burden of rare cancers in Italy = I TUMORI IN ITALIA - RAPPORTO 2015: I tumori rari in Italia

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    OBJECTIVES: This collaborative study, based on data collected by the network of Italian Cancer Registries (AIRTUM), describes the burden of rare cancers in Italy. Estimated number of new rare cancer cases yearly diagnosed (incidence), proportion of patients alive after diagnosis (survival), and estimated number of people still alive after a new cancer diagnosis (prevalence) are provided for about 200 different cancer entities. MATERIALS AND METHODS: Data herein presented were provided by AIRTUM population- based cancer registries (CRs), covering nowadays 52% of the Italian population. This monograph uses the AIRTUM database (January 2015), which includes all malignant cancer cases diagnosed between 1976 and 2010. All cases are coded according to the International Classification of Diseases for Oncology (ICD-O-3). Data underwent standard quality checks (described in the AIRTUM data management protocol) and were checked against rare-cancer specific quality indicators proposed and published by RARECARE and HAEMACARE (www.rarecarenet.eu; www.haemacare.eu). The definition and list of rare cancers proposed by the RARECAREnet "Information Network on Rare Cancers" project were adopted: rare cancers are entities (defined as a combination of topographical and morphological codes of the ICD-O-3) having an incidence rate of less than 6 per 100,000 per year in the European population. This monograph presents 198 rare cancers grouped in 14 major groups. Crude incidence rates were estimated as the number of all new cancers occurring in 2000-2010 divided by the overall population at risk, for males and females (also for gender-specific tumours).The proportion of rare cancers out of the total cancers (rare and common) by site was also calculated. Incidence rates by sex and age are reported. The expected number of new cases in 2015 in Italy was estimated assuming the incidence in Italy to be the same as in the AIRTUM area. One- and 5-year relative survival estimates of cases aged 0-99 years diagnosed between 2000 and 2008 in the AIRTUM database, and followed up to 31 December 2009, were calculated using complete cohort survival analysis. To estimate the observed prevalence in Italy, incidence and follow-up data from 11 CRs for the period 1992-2006 were used, with a prevalence index date of 1 January 2007. Observed prevalence in the general population was disentangled by time prior to the reference date (≤2 years, 2-5 years, ≤15 years). To calculate the complete prevalence proportion at 1 January 2007 in Italy, the 15-year observed prevalence was corrected by the completeness index, in order to account for those cancer survivors diagnosed before the cancer registry activity started. The completeness index by cancer and age was obtained by means of statistical regression models, using incidence and survival data available in the European RARECAREnet data. RESULTS: In total, 339,403 tumours were included in the incidence analysis. The annual incidence rate (IR) of all 198 rare cancers in the period 2000-2010 was 147 per 100,000 per year, corresponding to about 89,000 new diagnoses in Italy each year, accounting for 25% of all cancer. Five cancers, rare at European level, were not rare in Italy because their IR was higher than 6 per 100,000; these tumours were: diffuse large B-cell lymphoma and squamous cell carcinoma of larynx (whose IRs in Italy were 7 per 100,000), multiple myeloma (IR: 8 per 100,000), hepatocellular carcinoma (IR: 9 per 100,000) and carcinoma of thyroid gland (IR: 14 per 100,000). Among the remaining 193 rare cancers, more than two thirds (No. 139) had an annual IR <0.5 per 100,000, accounting for about 7,100 new cancers cases; for 25 cancer types, the IR ranged between 0.5 and 1 per 100,000, accounting for about 10,000 new diagnoses; while for 29 cancer types the IR was between 1 and 6 per 100,000, accounting for about 41,000 new cancer cases. Among all rare cancers diagnosed in Italy, 7% were rare haematological diseases (IR: 41 per 100,000), 18% were solid rare cancers. Among the latter, the rare epithelial tumours of the digestive system were the most common (23%, IR: 26 per 100,000), followed by epithelial tumours of head and neck (17%, IR: 19) and rare cancers of the female genital system (17%, IR: 17), endocrine tumours (13% including thyroid carcinomas and less than 1% with an IR of 0.4 excluding thyroid carcinomas), sarcomas (8%, IR: 9 per 100,000), central nervous system tumours and rare epithelial tumours of the thoracic cavity (5%with an IR equal to 6 and 5 per 100,000, respectively). The remaining (rare male genital tumours, IR: 4 per 100,000; tumours of eye, IR: 0.7 per 100,000; neuroendocrine tumours, IR: 4 per 100,000; embryonal tumours, IR: 0.4 per 100,000; rare skin tumours and malignant melanoma of mucosae, IR: 0.8 per 100,000) each constituted <4% of all solid rare cancers. Patients with rare cancers were on average younger than those with common cancers. Essentially, all childhood cancers were rare, while after age 40 years, the common cancers (breast, prostate, colon, rectum, and lung) became increasingly more frequent. For 254,821 rare cancers diagnosed in 2000-2008, 5-year RS was on average 55%, lower than the corresponding figures for patients with common cancers (68%). RS was lower for rare cancers than for common cancers at 1 year and continued to diverge up to 3 years, while the gap remained constant from 3 to 5 years after diagnosis. For rare and common cancers, survival decreased with increasing age. Five-year RS was similar and high for both rare and common cancers up to 54 years; it decreased with age, especially after 54 years, with the elderly (75+ years) having a 37% and 20% lower survival than those aged 55-64 years for rare and common cancers, respectively. We estimated that about 900,000 people were alive in Italy with a previous diagnosis of a rare cancer in 2010 (prevalence). The highest prevalence was observed for rare haematological diseases (278 per 100,000) and rare tumours of the female genital system (265 per 100,000). Very low prevalence (<10 prt 100,000) was observed for rare epithelial skin cancers, for rare epithelial tumours of the digestive system and rare epithelial tumours of the thoracic cavity. COMMENTS: One in four cancers cases diagnosed in Italy is a rare cancer, in agreement with estimates of 24% calculated in Europe overall. In Italy, the group of all rare cancers combined, include 5 cancer types with an IR>6 per 100,000 in Italy, in particular thyroid cancer (IR: 14 per 100,000).The exclusion of thyroid carcinoma from rare cancers reduces the proportion of them in Italy in 2010 to 22%. Differences in incidence across population can be due to the different distribution of risk factors (whether environmental, lifestyle, occupational, or genetic), heterogeneous diagnostic intensity activity, as well as different diagnostic capacity; moreover heterogeneity in accuracy of registration may determine some minor differences in the account of rare cancers. Rare cancers had worse prognosis than common cancers at 1, 3, and 5 years from diagnosis. Differences between rare and common cancers were small 1 year after diagnosis, but survival for rare cancers declined more markedly thereafter, consistent with the idea that treatments for rare cancers are less effective than those for common cancers. However, differences in stage at diagnosis could not be excluded, as 1- and 3-year RS for rare cancers was lower than the corresponding figures for common cancers. Moreover, rare cancers include many cancer entities with a bad prognosis (5-year RS <50%): cancer of head and neck, oesophagus, small intestine, ovary, brain, biliary tract, liver, pleura, multiple myeloma, acute myeloid and lymphatic leukaemia; in contrast, most common cancer cases are breast, prostate, and colorectal cancers, which have a good prognosis. The high prevalence observed for rare haematological diseases and rare tumours of the female genital system is due to their high incidence (the majority of haematological diseases are rare and gynaecological cancers added up to fairly high incidence rates) and relatively good prognosis. The low prevalence of rare epithelial tumours of the digestive system was due to the low survival rates of the majority of tumours included in this group (oesophagus, stomach, small intestine, pancreas, and liver), regardless of the high incidence rate of rare epithelial cancers of these sites. This AIRTUM study confirms that rare cancers are a major public health problem in Italy and provides quantitative estimations, for the first time in Italy, to a problem long known to exist. This monograph provides detailed epidemiologic indicators for almost 200 rare cancers, the majority of which (72%) are very rare (IR<0.5 per 100,000). These data are of major interest for different stakeholders. Health care planners can find useful information herein to properly plan and think of how to reorganise health care services. Researchers now have numbers to design clinical trials considering alternative study designs and statistical approaches. Population-based cancer registries with good quality data are the best source of information to describe the rare cancer burden in a population

    O ensino da Matemática e a utilização das TIC nas escolas estaduais da cidade de Erechim-RS: uma investigação

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    Submitted by Tania Ivani Rokohl ([email protected]) on 2017-11-10T12:25:21Z No. of bitstreams: 1 BATTISTI.pdf: 2582924 bytes, checksum: ad178402d8c5ffd100c146df5be4d303 (MD5)Approved for entry into archive by Diego dos Santos Borba ([email protected]) on 2017-11-13T15:31:19Z (GMT) No. of bitstreams: 1 BATTISTI.pdf: 2582924 bytes, checksum: ad178402d8c5ffd100c146df5be4d303 (MD5)Made available in DSpace on 2017-11-13T15:31:19Z (GMT). No. of bitstreams: 1 BATTISTI.pdf: 2582924 bytes, checksum: ad178402d8c5ffd100c146df5be4d303 (MD5) Previous issue date: 2017-08-24A presente pesquisa tem como tema de investigação a utilização das TIC no ensino de Matemática. Cujos objetivos primordiais voltam-se para investigar a realidade das escolas estaduais da cidade de Erechim/RS quanto à utilização das TIC para ensinar Matemática nos anos finais do Ensino Fundamental e; apresentar uma proposta pedagógica de atividades virtuais para o ensino de Matemática. Apresenta-se uma reflexão sobre a formação inicial e continuada de professores, além das políticas públicas que fomentam a presença das TIC no ambiente educacional e a importância da sua utilização para o processo de ensino e aprendizagem da Matemática. A metodologia volta-se para um estudo quali-quanti que tem por instrumento de coleta de dados a aplicação de um questionário para os professores de Matemática que compõem a amostra do estudo. Os resultados obtidos destacam que é preciso investir mais em cursos de formação continuada pautados na inserção das TIC na prática pedagógica, tendo em vista que, as escolas apresentam uma infraestrutura adequada no que tange os recursos tecnológicos, porém os professores não se sentem capacitados para utilizá-los durante as aulas de Matemática. A devolutiva da pesquisa contempla uma proposta pedagógica com atividades virtuais para ensinar Matemática, desenvolvidas a partir da exploração de software matemáticos e sites educativos, a ser disponibilizada para os professores de Matemática das escolas envolvidas.The present research has as its object of study the use of ICT in Mathematics teaching. The primary objectives are to investigate the reality of the state schools of the city of Erechim/RS regarding the use of ICT to teach mathematics in the final years of Elementary School and; to present a pedagogical proposal of virtual activities for the teaching of Mathematics. A reflection on the initial and continuous formation of teachers is presented, alongside with public policies that stimulate the presence of ICT in the educational environment and the importance of its use for the process of Mathematics teaching and learning. The methodology uses a quali-quanti study that has by its instrument of data collection a form application to Mathematics teachers that compose the sample of the study. The results show that it is necessary to invest more in continuing education courses based on the insertion of ICT in pedagogical practice, since schools have an adequate infrastructure in terms of technological resources, but teachers do not feel able to use them during math classes. The research grant contemplates a pedagogical proposal with virtual activities to teach Mathematics developed from the exploration of mathematical software and educational sites, to be made available to the mathematics teachers of the schools involved

    A spatial, statistical approach to map the risk of milk contamination by β-hexachlorocyclohexane in dairy farms

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    In May 2005, beta-hexachlorocyclohexane (β-HCH) was found in a sample of bovine bulk milk from a farm in the Sacco River valley (Latium region, central Italy). The primary source of contamination was suspected to be industrial discharge into the environment with the Sacco River as the main mean of dispersion. Since then, a surveillance programme on bulk milk of the local farms was carried out by the veterinary services. In order to estimate the spatial probability of β- HCH contamination of milk produced in the Sacco River valley and draw probability maps of contamination, probability maps of β-HCH values in milk were estimated by indicator kriging (IK), a geo-statistical estimator, and traditional logistic regression (LR) combined with a geographical information systems approach. The former technique produces a spatial view of probabilities above a specific threshold at non-sampled locations on the basis of observed values in the area, while LR gives the probabilities in specific locations on the basis of certain environmental predictors, namely the distance from the river, the distance from the pollution site, the elevation above the river level and the intrinsic vulnerability of hydro-geological formations. Based on the β-HCH data from 2005 in the Sacco River valley, the two techniques resulted in similar maps of high risk of milk contamination. However, unlike the IK method, the LR model was capable of estimating coefficients that could be used in case of future pollution episodes. The approach presented produces probability maps and define highrisk areas already in the early stages of an emergency before sampling operations have been carried out

    Costruire lo Spazio Pubblico. From Spaces to Places

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    Nell’ambito dell’iniziativa avviata con gli eventi svoltisi il 25-26 giugno 2018 dal titolo “Costruire lo spazio pubblico. Tra storia, cultura e natura”, ricompresi tra le attività previste per celebrare l’”Anno europeo del patrimonio culturale 2018”, il Dipartimento PDTA della Sapienza Università di Roma, ha organizzato, per il giorno 18 marzo 2019 in apertura della settimana del Workshop “From Spaces to Places. Il Tevere e la Valle delle Accademie”, il Convegno internazionale “Costruire lo spazio pubblico. From Spaces to Places”. Il Convegno è articolato in una Sessione plenaria “Costruire lo spazio pubblico. I piani e i progetti: l’Europa mediterranea” e i due Sessioni parallele: “Spazio pubblico, diritti e identità. Per un nuovo welfare urbano” e “Spazio pubblico, diritti e sostenibilità. Per una strategia di rigenerazione urbana”. La Sessione plenaria, grazie alla partecipazione di docenti e progettisti internazionali, riflette sul ruolo strutturante dello spazio pubblico a partire dall’illustrazione di piani e progetti emblematici in corso di sperimentazione nell’Europa mediterranea. Le due Sessioni parallele restituiscono, attraverso un confronto tra gli autori selezionati tra i 50 pubblicati, il senso delle questioni al centro dei contributi oggetto del volume “Costruire lo spazio pubblico. Tra storia, cultura e natura” (Urbanistica Dossier Online n. 15), esito della Call for Paper promossa dal Dipartimento PDTA nel giugno 2018. As part of the initiative launched with the events held on 25-26 June 2018 entitled "Building public space. Between history, culture and nature ", included among the activities planned to celebrate the" European Year of Cultural Heritage 2018 ", the PDTA Department of Sapienza University of Rome, organized the international Conference" Building public space. From Spaces to Places ", for the opening of the Workshop Week on March 18, 2019 "From Spaces to Places. The Tiber and the Valley of Academies ". The Conference is divided into a plenary Session “Building public space. Plans and projects: Mediterranean Europe” and two parallel Sessions: "Public space, rights and identity. For a new urban welfare" and "Public space, rights and sustainability. For a strategy of urban regeneration”. The plenary Session, thanks to the participation of international professors and designers, reflects on the structuring role of public space, starting from the illustration of emblematic plans and projects being tested in Mediterranean Europe. The two parallel Sessions return, through a comparison between the authors selected among the 50 published, the meaning of the questions at the center of the contributions object of the volume "Building public space. Between history, culture and nature "(Urban Planning Online Dossier No. 15), outcome of the Call for Paper promoted by the PDTA Department in June 2018

    Pyrosequencing as a Tool for Rapid Fish Species Identification and Commercial Fraud Detection

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    The increased consumption of fish products, as well as the occurrence of exotic fish species in the Mediterranean Sea and in the fish market, has increased the risk of commercial fraud. Furthermore, the great amount of processed seafood products has greatly limited the application of classic identification systems. DNA-based identification allows a clear and unambiguous detection of polymorphisms between species, permitting differentiation and identification of both commercial fraud and introduction of species with potential toxic effects on humans. In this study, a novel DNA-based approach for differentiation of fish species based on pyrosequencing technology has been developed. Raw and processed fish products were tested, and up to 25 species of fish belonging to <i>Clupeiformes</i> and <i>Pleuronectiformes</i> groups were uniquely and rapidly identified. The proper identification based on short and unique genetic sequence signatures demonstrates that this approach is promising and cost-effective for large-scale surveys

    “Costruire lo Spazio pubblico. Tra Storia, Cultura e Natura”

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    “Costruire lo Spazio pubblico. Tra Storia, Cultura e Natura” è la nuova edizione dell’iniziativa “Costruire lo Spazio Pubblico” del Laboratorio Progetto Roma del Dipartimento PDTA, promossa in vista della Biennale dello Spazio pubblico 2019 e nell’ambito degli eventi previsti per celebrare l’“Anno europeo del patrimonio culturale 2018”. L’iniziativa si è svolta in due giornate dedicate a un vasto calendario di appuntamenti che hanno avuto inizio il 25 giugno 2018, con un Evento di apertura presso il Museo Nazionale Etrusco di Villa Giulia, alla presenza delle Istituzioni e degli Enti Territoriali coinvolti, e sono proseguiti il 26 giugno 2018 con un Convegno Internazionale conclusosi con una Tavola rotonda, a cui hanno partecipato ancora Istituzioni ed Enti territoriali con competenza sui temi trattati. Durante la prima giornata, contestualmente all’Evento di apertura, è stata inaugurata la Mostra dal titolo “From Spaces to Places”, che ha ospitato una restituzione di lavori selezionati attraverso una Call for Projects, sul tema delle strategie di rigenerazione urbana che pongono al centro la costruzione dello spazio pubblico e la valorizzazione del patrimonio culturale e del capitale naturale. Nell’ambito dell’Evento di apertura dell’iniziativa, è stato presentato, inoltre, il Masterplan “From Spaces to Places. Il Tevere e la Valle delle Accademie”, esito di una sperimentazione progettuale condotta da Giovanna Bianchi, Antonella Galassi e Carlo Valorani, docenti del Dipartimento PDTA. Durante la serata, le textures del Masterplan sono diventate oggetto delle Lucigrafie curate da Luca e Natan Ruzza, dal titolo “Hortus Mirabilis” e realizzate sulla facciata del Museo di Villa Giulia. Non un videomapping, ma una costruzione articolata e di senso, alla ricerca delle radici, modello esemplare della natura per efficienza e stabilità, di un territorio culturale da ri-esplorare. Nella seconda giornata, l’Aula Piccinato del Dipartimento PDTA, in Via Flaminia 72, ha ospitato il Convegno Internazionale dal titolo “Costruire lo Spazio Pubblico. Tra Storia, Cultura e Natura”, articolato in due sessioni dedicate, rispettivamente, a “Le strategie” e “Gli strumenti”. Nella Sessione pomeridiana sono stati presentati alcuni contributi selezionati nell’ambito della Call for Paper
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