Manuela Ferreira

ORCID: 0000-0002-8452-2222
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About
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Research Areas
  • Obesity, Physical Activity, Diet
  • Adolescent Sexual and Reproductive Health
  • Consumer Attitudes and Food Labeling
  • Nutritional Studies and Diet
  • Patient Safety and Medication Errors
  • Health, Nursing, Elderly Care
  • Animal and Plant Science Education
  • Insect Utilization and Effects
  • Medical Malpractice and Liability Issues
  • Musculoskeletal pain and rehabilitation
  • Health and Lifestyle Studies
  • Eating Disorders and Behaviors
  • biodegradable polymer synthesis and properties
  • Science and Education Research
  • Breastfeeding Practices and Influences
  • Child and Adolescent Psychosocial and Emotional Development
  • Youth, Drugs, and Violence
  • Sex work and related issues
  • Maternal and Neonatal Healthcare
  • Food composition and properties
  • School Health and Nursing Education
  • Male Reproductive Health Studies
  • Health Education and Validation
  • Metal-Organic Frameworks: Synthesis and Applications
  • Culinary Culture and Tourism

Polytechnic Institute of Viseu
2016-2025

The George Institute for Global Health
2024

Laboratoire Génie et Matériaux Textiles
2005-2024

École Nationale Supérieure des Arts et Industries Textiles
2005-2024

Université de Lille
2022-2024

Escola Superior de Enfermagem de Coimbra
2019-2023

The University of Sydney
2018-2022

Escola Superior de Tecnologia da Saúde de Coimbra
2022

Universidade Estadual de Maringá
2021

Louisiana State University
2021

Metallic oxides have been successfully investigated for the recycling of polylactide (PLA) via catalyzed unzipping depolymerization allowing selective recovery lactide monomer. In this contribution, a metallic oxide nanofiller, that is, ZnO, has dispersed into PLA without detrimental polyester degradation yielding PLA/ZnO nanocomposites directly suitable producing films and fibers. The were produced by melt-blending two different grades with untreated ZnO surface-treated nanoparticles....

10.1021/bm2001445 article EN Biomacromolecules 2011-04-06

Since the emergence of chemical, biological, radiological, and nuclear risks, significant efforts have been made to create efficient personal protection equipment. Recently, metal-organic framework (MOF) materials emerged as new promising candidates for capture degradation various threats, like chemical warfare agents (CWAs) or radioactive species. Herein, we report a synthesis method MOF-textile composites by microwave irradiation, with direct anchoring MOFs on textiles. The resistance...

10.1021/acsami.2c03247 article EN ACS Applied Materials & Interfaces 2022-04-26

Abstract An experimental study was carried out to design polylactide (PLA)‐clay nanocomposites for developing fibers. PLA and 1–10 wt % of a selected organomodified bentonite (Bentone® 104‐B104) were melt mixed examine the effect processing conditions (temperature, shear, residence time) on morphology performed polymer (PNC). Because good compatibility with matrix, dispersion B104 occurred under different without difficulty, similar obtained. The results obtained showed that at low...

10.1002/app.28138 article EN Journal of Applied Polymer Science 2008-04-10

Motivation should be seen as a very important factor in the learning process. The motivated student has inner strength to learn, discover and capitalize on capabilities, improve academic performance adapt demands of school context. Contextual factors like psychological sense membership may also especially students' classroom engagement, their motivation success. So with this study we intend examine how belonging intrinsic influences perceived learning.A structural model reveals that negative...

10.1016/j.sbspro.2011.11.416 article EN Procedia - Social and Behavioral Sciences 2011-01-01

Consistent condom use is recognized as one of the most effective strategies to prevent unwanted pregnancies and sexually transmitted infections. Despite their effectiveness, condoms remain fairly well used among younger people. The conception appropriate measures change behaviors needs a deep understanding factors underlying poor adherence use. This study aims identify predictors college students. A cross-sectional, correlational, predictive was conducted involving convenience sample 1946...

10.3390/ijerph21040433 article EN International Journal of Environmental Research and Public Health 2024-04-03

Background: Food literacy is an essential aspect of modern education, nourishing students with the knowledge and necessary skills to make informed, healthy, sustainable food choices. Building upon validated research conducted in Portugal concerning nutritional level Portuguese students, our objective was provide a similar survey instrument Romanian assess their literacy. Methods: The data collected, based on pilot study, from 120 who completed online questionnaire. questionnaire covered...

10.3390/su16031034 article EN Sustainability 2024-01-25

Nos últimos 50 anos, a prevalência de obesidade aumentou em todo o mundo, atingindo níveis pandemia. O pós-operatório da cirurgia bariátrica apresenta inúmeros impactos vida do bariátrico que vão desde sobras dermo gordurosas até necessidade acompanhamento psicológico para lidar com os acontecimentos nova vida. “Após bariátrica, pacientes apresentam distribuídas não somente na parede anterior abdômen, mas por toda circunferência abdominal.” (Daher et al., 2019 p. 219). método escolhido foi...

10.55905/revconv.18n.2-335 article PT cc-by-nc Contribuciones a las Ciencias Sociales 2025-02-21

Mucosa-associated lymphoid tissue lymphoma (MALT) affects frequently the gastrointestinal tract, most commonly stomach. The colon is rarely affected. Both clinical presentation and endoscopic findings are variable histopathological with immunohistochemical analysis needed for diagnosis. There several treatment modalities available, low remission rates favorable outcomes. We present case of an 80-year-old man who, after a positive screening faecal occult blood test, underwent total...

10.18203/2349-2902.isj20250574 article EN International Surgery Journal 2025-02-27

Abstract Humans have been consuming milk obtained from domesticated animals since ancient times. Milk is a very complete food with important nutrients that can support life. However, the patterns of consumption shifting. On one hand, due to increase in number people intolerances (to lactose, for example), and on other some trend avoid foods animal origin owing specific conviction (like welfare, example). In this context, study focused two different European Countries evaluation possible...

10.1515/opag-2025-0413 article EN cc-by Open Agriculture 2025-01-01

To characterise sleep-wake patterns and their influence on academic performance for a sample of Portuguese adolescents. Cross-sectional, analytical-explanatory, correlational epidemiological research. The protocol includes the composite morningness questionnaire (Barton et al, 1985 adapted by Silva 1985), Epworth Sleepiness Scale (Murray, 1991), chronic fatigue scale (Smith 1995), Pittsburgh Sleep Quality Index (Buysse, 1988), Educational Achievement (Fermin, 2005), personal data. 2094...

10.1016/s0212-6567(14)70085-x article EN cc-by-nc-nd Atención Primaria 2014-11-01

Higher education has influenced students' concepts of sleeping time leading to a deficit sleep quality. Sleep disorders constitute one the most pertinent health problems in western society. Identify factors that influence quality nursing students; which social demographic and academic variants interfere with quality; Analyze variables psychological context investigate relationship between daytime somnolence students. Analytic, descriptive correlational study non-probabilistic convenience...

10.1016/j.sbspro.2016.02.090 article EN Procedia - Social and Behavioral Sciences 2016-02-01

ABSTRACT Polylactide (PLA)/zinc oxide (ZnO) nanocomposite filaments were produced with a melt‐spinning process, the aim of obtaining antibacterial textiles. ZnO, an inorganic nanofiller, is used to impart properties PLA. These nanoparticles suit process because their high thermal stability and low granulometry. Generally, metallic oxides (e.g., ZnO) are recycle PLA via catalyzed unzipping depolymerization. In this study, we different ways finely disperse ZnO in produce minimum degradation...

10.1002/app.41776 article EN Journal of Applied Polymer Science 2015-01-24

Many aspects linked to personal characteristics, society and culture constitute some of the motivators that drive food choice. The aim this work was determine in what extent eating behaviors individuals are shaped by six different types determinants, namely: health, emotions, price availability, culture, environment politics, marketing commercials. This is a descriptive cross-sectional study, involving non-probabilistic sample 11,960 participants from 16 countries. objective validate...

10.3390/foods9070888 article EN cc-by Foods 2020-07-07

This work intended to explore some motivations that influence people’s eating habits towards sustainability. was an observational, cross-sectional study, carried out by questionnaire survey on a non-probabilistic sample of 10,067 participants from 13 countries (Argentina, Brazil, Croatia, Greece, Hungary, Latvia, Lithuania, Poland, Portugal, Serbia, Slovenia, Romania and United States). Results indicated people prefer fresh local foods the season, being important because it allows...

10.3390/su13052869 article EN Sustainability 2021-03-06

This research aimed to study consumers’ trends and the consumption of foods obtained through organic farming in two different countries, Portugal Turkey. A questionnaire survey was used, applied internet tools as a result COVID-19 pandemic restrictions. For treatment data, we used basic statistics complemented with tree classification, at evaluating influence sociodemographic factors on knowledge about this type food. The results showed that patterns are relatively similar both many...

10.3390/agronomy12061385 article EN cc-by Agronomy 2022-06-08

to assess the psychometric characteristics of Hospital Survey on Patient Safety Culture, characterize patient safety culture, and influence sociodemographic professional variables culture dimensions.a methodological, observational, analytical cross-sectional study conducted with 360 nurses in which Culture questionnaire was used. The data were submitted descriptive inferential analysis, as well feasibility validity studies.the nurses' mean age is 42 years old, their time experience 19 years,...

10.1590/1518-8345.6231.3837 article EN cc-by Revista Latino-Americana de Enfermagem 2023-03-27

The current policy guidelines on mental health aim to keep the mentally ill within community, with development of social support, including families, hence emergence role family caregiver. To identify socio-demographic variables influencing anxiety, depression and stress for informal caregivers ill; determine influence background caregiver stress; analyse relationship between support overload stress. Cross-sectional, descriptive correlational study 104 caregivers, mostly female (62.5%), aged...

10.1016/s0212-6567(14)70087-3 article EN cc-by-nc-nd Atención Primaria 2014-11-01

This study analysed the perceptions about healthy eating as well some emotional factors conditioning behaviour in a sample of people from Portugal, Brazil and Argentina. is descriptive cross-sectional involving non-probabilistic 2501 participant. Data was collected through questionnaire applied to adult citizens residing their respective countries. For data analysis chi-square tests were used, associations evaluated by Cramer's coefficients. Moreover, tree classification conducted for...

10.3390/foods9091236 article EN cc-by Foods 2020-09-04
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