The quality of caregiver–child interactions in infant classrooms in Portugal: the role of caregiver education

Recent research has shown that caregiver education and training can be important in determining levels of quality in early childhood, but has mainly considered the education and training of the lead teacher. In infant child care, however, classrooms have more than one caregiver with varying levels of education and in Portugal it is less common to have a qualified teacher exclusively assigned to infant classrooms. This study examines the quality of caregiver–child interactions in infant classrooms and its association with caregiver qualifications and training, specifically the level of pre-service education and in-service training of the lead caregiver, whether she is exclusively assigned to an infant classroom or to more classrooms, and the pre-service education of the multiple caregivers in the classroom. Participants were 90 infant classrooms from Porto, Portugal. The CLASS–Infant was used to measure quality of caregiver–infant interactions. Classrooms with one lead caregiver holding at least a bachelor’s degree, whether exclusively assigned to the infant classroom or not, showed higher levels of quality. Few effects were found for in-service training. Results suggest that lead teachers with pre-service education in early childhood are likely to play an important role not only directly by interacting with children but also indirectly through team work.info:eu-repo/semantics/publishedVersio

Stability and change in teacher-infant interaction quality over time

Given that an increasing number of infants spend part of the day in center-based childcare in many countries, understanding infants’ education and care experiences in these settings is essential. The aims of this study are to examine change in teacher-infant interaction quality over time, and to determine the extent to which teacher and classroom structural characteristics are associated with change in teacherinfantinteraction quality. Ninety infant childcare classrooms from the greater metropolitan area of Porto, Portugal, participated in this study. Each classroom was observed twice (6-month interval between Time 1 and Time 2) by trained and reliable observers using the Infant/Toddler Environment Rating Scale – Revised (ITERS-R; Harms et al., 2006), the Classroom Assessment Scoring System – Infant (CLASS-Infant; Hamre et al., 2014), and the Caregiver Interaction Scale (CIS; Arnett, 1989). Additionally, teachers provided demographic information aboutthemselves and structural characteristics ofthe classroom. Overall results indicated that the quality of teacher-infant interactions changed over time, with a general trend toward lower quality at Time 2. The increase in infant:adult ratio from Time 1 to Time 2 was an important predictor of process quality levels at Time 2, after controlling for prior quality and other structural characteristics. These findings can be informative for policymaking as group size and number of adults per classroom are regulated features of childcare in many countries, including Portugalinfo:eu-repo/semantics/publishedVersio

Predictors of parent-teacher communication during infant transition to childcare in Portugal

Although literature reports associations between parent-teacher communication and childcare quality, little is known about how such communications are related to family, child and childcare characteristics. This study examines whether child, family and childcare experience characteristics predict the level of parent-teacher communication, and differences between parents’ and teachers’ reports of communication. Participants were mothers of 90 infants and their teachers in childcare in Portugal. Results show that both parents and teachers report higher levels of communication in higher-quality programmes. Teachers reported more frequent communication than parents. Teachers, but not parents, reported more frequent communication when children spent fewer hours in childcare. Discussion highlights the relevance of monitoring the quality of childcare contexts, especially in early ages, and to increase parent-teacher communication when children spend more time in childcare. The importance of promoting high-quality childcare and accounting for variables at the mesosystemic level of development in teacher training are also discussed.info:eu-repo/semantics/publishedVersio

Transição de bebés do contexto familiar para a creche: práticas e ideias dos profissionais

: A creche representa, atualmente, um dos contextos principais de desenvolvimento de bebés, sendo a transição do contexto familiar para a creche um momento crítico para os bebés e respetivas famílias (e.g., Balaban, 2011; Merril, 2010). O presente estudo visa descrever as práticas de transição de bebés do contexto familiar para a creche, implementadas em instituições da grande área metropolitana do Porto, Portugal, assim como conhecer a utilidade destas práticas tal como percebida pelos profissionais a desempenhar funções nos berçários. No âmbito do projeto de investigação "Transição dos bebés para a creche: comunicação família-creche, qualidade dos contextos e adaptação do bebé", 90 profissionais de educação responderam, entre Setembro de 2013 e Março de 2014, ao Questionário sobre características estruturais - Berçário (ECCE Study Group, 1997, adaptação de Barros, Pessanha, Pinto, & Cadima, 2013) e ao Questionário sobre práticas de transição dos bebés para a creche (Peixoto, Pinto, & Barros, 2013). Pese embora alguns constrangimentos à implementação de determinadas práticas, os resultados ilustram a preocupação dos profissionais com a adaptação dos bebés e das suas famílias ao contexto de creche, na medida em que estes relatam a implementação de um conjunto diverso de práticas de transição recomendadas na literaturainfo:eu-repo/semantics/publishedVersio

Ferrugem da folha sobre genótipos de aveia com diferentes níveis de resistência : danos e perdas

The evolution in virulence of Puccinia coronata f. sp. avenae has challenged the genetic resistance to crown rust in oat genotypes. New resistance sources are constantly required for yield stabilization and costs reduction. This study aimed to characterize the crown rust resistance of oat genotypes and the disease´s productive and economic impact. Experiments were conducted in two environments, with and without chemical control. Resistance was measured by disease progress, apparent rate of infection, final severity and pustule size. Damages were based on reduction of yield, 1000 grain mass and hectoliter mass. UFRGS16Q6030-2 was immune. In both environments, UFRGS166091-2 and URS Brava exhibited the greatest level of resistance and the smallest grain yield reduction, while URS 22 was highly susceptible, reducing more than 70% of its grain yield. These results surpass the negative impacts of the disease previously reported in oats, particularly related to grain yield. The data presented in this paper highlighted the importance of genetic resistance, particularly partial resistance, for maintaining oat genetic yield potential, reducing environmental contamination with less fungicides, and increasing economic gains with oat cultivation.A evolução da virulência de Puccinia coronata f. sp. avenae desafia a resistência genética de cultivares de aveia à ferrugem da folha. Novas fontes de resistência são constantemente necessárias para estabilizar a produção e reduzir custos. Os objetivos desse estudo foram caracterizar a resistência de seis genótipos de aveia à ferrugem da folha e avaliar o impacto produtivo e econômico causado pela doença. Foram conduzidos ensaios em dois ambientes com e sem o controle químico. A resistência foi medida via progresso da doença, taxa aparente de infecção, severidade final e tamanho da pústula. As perdas foram avaliadas em rendimento, massa de mil grãos e massa do hectolitro. UFRGS 16Q6030-2 foi imune. Em ambos os ambientes, UFRGS 166091-2 e URS Brava exibiram os maiores níveis de resistência e as menores reduções no rendimento de grãos, enquanto URS 22 teve a maior suscetibilidade, com redução superior a 70% no rendimento de grãos. Os resultados obtidos superam os impactos negativos da doença previamente relatados em aveia, particularmente em relação ao rendimento de grãos. Os dados apresentados neste trabalho ressaltam a importância da resistência genética, particularmente a parcial, na manutenção do potencial genético produtivo, na redução de contaminações ambientais pelo menor uso de fungicidas e na ampliação dos ganhos econômicos com a cultura da aveia

Parceria família-creche na transição do bebé para a creche

Este estudo apresenta atitudes e comportamentos de parceria família-creche, relatados por mães e educadoras, durante o período de entrada de bebés na creche. Mães e educadoras de 90 bebés responderam à Escala de Parceria Educadores-Pais (Ware, Rusher, Barfoot & Owen, 1995). Os resultados indicam uma grande valorização, por parte das mães e educadoras, da parceria família-creche para dar resposta às necessidadesdas crianças, bem como uma elevada probabilidade, relatada, de se envolverem em comportamentos de parceria. Os relatos das mães são relativamente mais positivos, quer no que se refere às atitudes, quer no que se refere aos comportamentos de parceria. Verificaram-se também associações positivas entre os relatos das mães e das educadoras. Encontraram-se ainda outras associações, no sentido esperado, com variáveis do ambiente familiar e de creche

ENTOSAFE - Edible insects: From a sustainable food production to a food safety concern.

The use of insects as a food and feed source is nowadays considered a solution for the increasing food demands in the following years. With that in mind, the recently funded project “ENTOSAFE - Edible insects: From a sustainable food production to a food safety concern” aims to integrate the food safety and the environmental sustainability aspects of edible insect farming. ENTOSAFE will take advantage of a symbiotic multidisciplinary team with members from industry (EntoGreen® - Ingredient Odyssey, Portugal) and academia (Univ. of Aveiro and National Health Institute Doutor Ricardo Jorge, Portugal). The project is committed to provide knowledge on the accumulation and transfer of potential contaminants (e.g., metals, mycotoxins, PAHs, pharmaceuticals) in insects farmed in rearing facilities, contributing directly with data sets to the new legislation and regulatory limits, concerning the presence of these compounds in the substrate. ENTOSAFE brings new approaches, focusing on full bioaccumulation studies through a complete uptake phase, assessing the contaminant into insects in different times during this phase. Considering the lack of information on insects’ elimination capacity to excrete contaminants from their body, an elimination phase will be studied in a non-contaminated substrate. ENTOSAFE is also promoting environmentally sustainable strategies while avoiding any wasted components from the process. The application of frass, as an organic fertilizer - produced by the digestion of the agricultural wastes or other residues by insects - on crops is presented as a promising solution to a zero-waste policy. Despite promising, the available information on the benefits that this by-product has on crop productivity is scarce. In this context, ENTOSAFE seeks evidence on the impact of this frass on agricultural soil’s main functions and the key processes behind. The project will evaluate the effects in soil quality and functions, soil-biota interactions in soils enriched with organic amendments and plant responses to stressors, by performing a series of experiments from laboratory to greenhouse scale. In summary, ENTOSAFE will contribute to an upscaling on the use of edible insects as feed and food, covering not only safety concerns but also promoting the sustainability of insect rearing processes.FCT/MCTES ( 50017/2020 + 50017/2020 + LA/P/0094/2020), ENTOSAFE project (PTDC/CTA-AMB/0730/2021). D. Cardoso was hired under the Scientific Employment Stimulus - Individual Call (CEECIND/01190/2018). Patrícia V. Silva was funded by the project NATURAL (Nano-clays for removal/capture of phosphates and its reuse as fertilizer; CENTRO-01-0247-FEDER-047080) through a pos-doctoral grant (BIPD/UI50/6103/2021).N/

Antioxidant and antimicrobial films based on brewers spent grain arabinoxylans, nanocellulose and feruloylated compounds for active packaging

In this study, brewers spent grain (BSG) arabinoxylans-based nanocomposite films were prepared by solvent casting of arabinoxylans (AX) suspensions containing different amounts of nanofibrillated cellulose (NFC, 5, 10, 25, 50 and 75% mass fraction). The obtained nanocomposite films were homogeneous and presented thermal stability up to 230 °C and good mechanical properties (Young's modulus up to 7.5 GPa). Additionally, the films with 50% NFC were loaded with ferulic acid or feruloylated arabinoxylo-oligosaccharides enriched fraction from BSG (75 mg per g of film). This combination enhanced the UV–Vis barrier properties and imparted additional functionalities to the films, namely (i) antioxidant activity up to 90% (DPPH scavenging activity), (ii) antibacterial activity against Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria, and (iii) antifungal activity towards the polymorphic fungus Candida albicans. Therefore, these fully biobased nanocomposite films show potential for application as active food packaging systems.publishe

Third-generation cholecystectomy by natural orifices: transgastric and transvesical combined approach (with video)

An isolated transgastric port has some limitations in performing transluminal endoscopic cholecystectomy. However, transvesical access to the peritoneal cavity has recently been reported to be feasible and safe. Background An isolated transgastric port has some limitations in performing transluminal endoscopic cholecystectomy. However, transvesical access to the peritoneal cavity has recently been reported to be feasible and safe. Objective To assess the feasibility and the technical benefits of transgastric and transvesical combined approach to overcome the limitations of isolated transgastric ports. Design We created a transgastric and transvesical combined approach to perform cholecystectomy in 7 consecutive anesthetized female pigs. The transgastric access was achieved after perforation and dilation of the gastric wall with a needle knife and with a balloon, respectively. Under cystoscopic control, an ureteral catheter, a guidewire, and a dilator of the ureteral sheath were used to place a transvesical 5-mm overtube into the peritoneal cavity. By using a gastroscope positioned transgastrically and a ureteroscope positioned transvesically, we carried out cholecystectomy in all animals. Results Establishment of transvesical and transgastric accesses took place without complications. Under a carbon dioxide pneumoperitoneum controlled by the transvesical port, gallbladder identification, cystic duct, and artery exposure were easily achieved in all cases. Transvesical gallbladder grasping and manipulation proved to be particularly valuable to enhance gastroscope-guided dissection. With the exclusion of 2 cases where mild liver-surface hemorrhage and bile leak secondary to the sliding of cystic clips occurred, all remaining cholecystectomies were carried out without incidents. Limitations Once closure of the gastric hole proved to be unreliable when using endoclips, the animals were euthanized; necropsy was performed immediately after the surgical procedure. Conclusions A transgastric and transvesical combined approach is feasible, and it was particularly useful to perform a cholecystectomy through exclusive natural orifices

INTRAOPERATIVE ANTICOAGULATION MONITORIZATION IN VASCULAR SURGERY – DOES A BLIND DOSIS FITS ALL?

Introduction: Unfractionated heparin (UFH) has been used for decades to prevent thrombotic events during vascular surgery. Although it is known that UFH has a complex and nonlinear pharmacokinetics, with great individual variability, anticoagulation monitorization in vascular surgery is not routine and a standard empirical dose is often used. Activated clotting time (ACT) has been shown to be a simple, reliable and inexpensive way to monitor UFH anticoagulant effect, being routinely used during cardiac surgery. However, heparinisation remains a dilemma in vascular surgery and few studies emphasized the role of anticoagulation monitoring in this setting. Objectives: To investigate whether a fixed heparin dose of 5000 IU in arterial vascular surgery results in adequate and homogeneous heparinisation in all patients. Secondary endpoints: to identify preoperative factors for heparin response, intraoperative events and outcomes. Methods: This observational prospective pilot study included 30 consecutive patients undergoing arterial vascular surgery. ACT monitoring was performed before clamping and at 3, 30 and 60 minutes after 5000 IU UFH bolus. Preoperative and intraoperative data were also accessed. A target ACT of ≥ 200 s was set, taking in account of the lowest ACT value admitted by vascular surgery recommendations. Results: The average ACT value increased to 210.20 ± 28.82 s (1.61 ± 0.25 times vs baseline) 3 minutes after bolus, then declined to 191.60 ± 21.86 s and 173.4 ± 21.37 s after 30 and 60 minutes, respectively. Three minutes after UFH bolus, 53% patients had ACT ≥ 200 s, decreasing to one third and 7% at 30 and 60 minutes, respectively. Even when weight-based, a correlation between heparin dose per kilogram and ACT change was not found (r = 0.187; p = 0.322). There was also no correlation between ACT values and preoperative hemoglobin, platelet count, creatinine clearance or INR. There was a positive correlation between preoperative aPTT and intraoperative ACT measurements (r = 0.432; p = 0.017). There was no difference between ACT values and previous antithrombotic/anticoagulant therapy and between intraoperative ACT and intraoperative blood loss. Conclusions: This study confirms that administrating a fixed or even a weight-based heparinisation is insufficient to provide consistent anticoagulation levels in all patients. Perioperative anticoagulation should be monitored and ACT-based. Larger clinical RCT's are warranted