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Combination HIV Prevention Strategies in the Lisbon Cohort of Men who Have Sex ...

Bacterial nanocellulose nanocomposites for medical applications

Tumor-infiltrating T cells in skin basal cell carcinomas and squamous cell carc...

Basal cell carcinomas (BCCs) and squamous cell carcinomas (SCCs) are high-incidence, non-melanoma skin cancers (NMSCs). The success of immune-targeted therapies in advanced NMSCs led us to anticipate that NMSCs harbored significant populations of tumor-infiltrating lymphocytes with potential anti-tumor activity. The main aim of this study was to characterize T cells infiltrating NMSCs. Flow cytometry and immuno...

The influence of hydroxyapatite crystals on the viscoelastic behavior of poly(v...

Composites of poly(vinyl alcohol) (PVA) in the shape of braids, in combination with crystals of hydroxyapatite (HAp), were analyzed to perceive the influence of this bioceramic on both the quasistatic and viscoelastic behavior under tensile loading. Analyses involving energy-dispersive X-ray spectroscopy (EDS) and scanning electron microscopy (SEM) allowed us to conclude that the production of a homogeneous lay...

Analyzing the causal dynamics of circular-economy drivers in SMES using interpr...

The circular economy has emerged as a crucial way for companies to achieve their sustainability goals. Numerous businesses, especially small and medium-sized enterprises (SMEs), are integrating circular-economy projects into their operations. However, this undertaking presents multiple challenges as many managers must grapple with constraints in resources and expertise. This study’s primary objective is to deve...

“Who comes next?”: Planning and managing sustainable initiatives that facilitat...

Family businesses are increasingly recognized for their significance in the global economy, constituting a growing portion of companies worldwide and elevating the importance of this topic on governmental agendas. Unique challenges confront family firms, intertwining business decisions with familial repercussions. Among these challenges, the succession process emerges as a critical threat to their continuity. I...

Enhancing hospital resilience and planning capacity in scenarios of crisis usin...

Hospitals, as critical infrastructures, confront multifaceted challenges during crises, ranging from natural disasters to pandemics. Initially, these facilities must secure essential emergency support functions and, subsequently, expedite their recovery from any adverse impacts. Hospital resilience, influenced by numerous variables and assessed through various evaluation criteria, remains enigmatic in terms of ...

Considerações sobre sustentabilidade e economia circular no negócio têxtil e da...

[Excerto] 1. Introdução O consumo de materiais têxteis e o volume e composição dos resíduos têxteis na União Europeia (UE) e no mundo são um problema crescente, considerando o seu impacto ambiental. De facto, o setor têxtil e do vestuário é apontado como a terceira fonte de pressão no consumo de água e uso de área na UE e o quinto setor com a maior utilização de matérias-primas e emissão de gases poluentes. Por...

Evaluation of saliva as an alternative to standard collection for detection of ...

In December 2019, in Wuhan, an outbreak of a new coronavirus (SARS-CoV-2) began to spread rapidly, resulting in a potentially fatal viral respiratory disease. Since August 23, 2020, more than 679 million cases of COVID-19 and nearly 6.8 million deaths have been confirmed in more than 200 countries. This, in turn, had a severe impact on public health and the world economy. The SARS-CoV-2 pandemic also resulted i...

Auxetic materials and structures for potential defense applications: an overvie...

Auxetic behavior is a promising new area for use in defense applications. In comparison to a conventional material, an auxetic material has superior properties because of having a negative Poisson’s ratio; it gets broadened when stretched or becomes smaller when compressed. Furthermore, auxetic materials have enhanced properties such as shear resistance, indentation resistance, fracture toughness, energy absorp...