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Molecular and serological screening support the lack of Coxiella burnetii circu...

Loureiro, Filipa; Mesquita, João R.; Cardoso, Luis; Pintado, Cristina Santos; Gonçalves, S. Gomes; Matos, Ana; Soeiro, V.; Gonçalves, A.; Silva, Filipe

Coxiella burnetii is a highly infectious zoonotic pathogenic bacterium that has a major economic impact in the livestock industry throughout the world and causes unpredictable outbreaks in humans worldwide. Although it is known that birds are potential reservoirs of C. burnetii, their role in the epidemiological cycle of the pathogen has not been fully verified. Due to its non-specific symptoms and clinical sig...


Mineral profile, oxidative stability and color traits in dry aged meat: integra...

Ribeiro, Ana J.; Braga, Fernando G.; Oliveira, Irene; Silva, Filipe; Teixeira, Paula; Saraiva, Cristina M.

Dry aging enhances beef's sensory quality, but the role of trace-element dynamics in driving physicochemical changes remains unclear. We dry-aged Longissimus lumborum loins (n = 12) for 60 days, sampling on days 1, 14, 35 and 60. Essential (Ca, K, Na, Mg, Fe, Se, Cr, Zn, Cu) and toxic (As, Cd, Co, Pb) elements were quantified by GF-AAS/FAAS; pH and L?, a?, b? color were measured with standard probes; lipid oxid...


Circular packaging under suspicion: The cat and mouse game with greenwashing

Lopes, João M.; Silva, Filipe; Gomes, Sofia; Nogueira, Elisabete

Purpose – As consumers become increasingly savvy to deceptive marketing tactics such as greenwashing, the nexus between the desire to buy goods housed in circular packaging, environmental consciousness and the quest for pro-circular insights takes center stage in discussions surrounding conscientious and sustainable consumption. This study aims to evaluate how consumers’ perceptions of companies’ greenwashing b...


Dry-aged beef: a global review of meat quality traits, microbiome dynamics, saf...

Ribeiro, Ana J.; Silva, Filipe; Teixeira, Paula; Saraiva, Cristina M.

Dry-aged beef is valued for its tenderness, complex aroma, and concentrated flavor. However, variability in aging protocols and limited understanding of underlying biological and technological processes can compromise consistent quality and safety. This review examines factors influencing meat characteristics, including genetics, breed, sex, age, diet, intramuscular fat deposition, antioxidant reserves, and end...


Short-pulse direct laser writing of 3Y-TZP zirconia: a superior surface modific...

Sahoo, Narayan; Carvalho, Óscar; Özcan, Mutlu; Eyüboğlu, Tan Fırat; Souza, Júlio C. M.; Silva, Filipe; Henriques, Bruno

The clinical success of zirconia-based restorations relies on surface modifications that enhance adhesion without compromising material integrity. This study evaluates Direct Laser Writing (DLW) as a non-contact, contamination-free alternative to conventional grit-blasting methods (alumina particle abrasion [SB] and silica-coated alumina treatment [SC]. Surface roughness (Ra), wettability, surface free energy (...


Seroprevalence of West Nile virus antibodies in wild birds of prey in Portugal

Loureiro, Filipa; Cardoso, Luis; Matos, Ana; Matos, Manuela; Silva, Filipe; Coelho, Ana Cláudia

West Nile Virus is one of the most widely distributed arboviruses in the world with zoonotic potential. Seroepideiological studies are necessary to establish proper prevention and control strategies. WNV-total antibodies were searched in blood serum using an ELISA commercial kit. Samples from 136 individuals of diurnal raptors were analysed, from eight distinct Accipitriformes species. Eleven nocturnal birds of...


West Nile virus antibodies in wild birds of prey from the North of Portugal

Loureiro, Filipa; Cardoso, Luis; Matos, Ana Cláudia; Matos, Manuela; Pintado, Cristina; Silva, Filipe; Coelho, Ana Cláudia


Seroprevalence of West Nile virus in Cinereous vultures (Aegypius monachus) and...

Loureiro, Filipa; Cardoso, Luis; Matos, Ana Cristina; Matos, Ana; Matos, Manuela; Silva, Filipe; Coelho, Ana Cláudia

West Nine virus (WNV) is an emergent zoonotic pathogen spread worldwide. This flavivirus is endemically maintained in a life cycle with birds acting as reservoirs, Culex mosquitopes as the main vectors, and human and horses as accidental dead-end hosts. The potential impact ofWNV infection on wildlife populations can be severe, especially in thjreatened or endangered species. This work might be useful as a star...


Body Condition in Small Ruminants—Effects of Nutrition on the Hypothalamic–Pitu...

Chaves, Ana Sofia; Silva, Filipe; Valentim, Ramiro; Quintas, Helder

Nutritional status plays a vital role in regulating ovary activity. This regulation is mediated by the hypothalamus–pituitary–gonad axis and by effects exerted directly on the ovary. Therefore, to achieve the best reproductive performance, it is essential to know how the nutritional status affects the secretion of GnRH, gonadotrophins, and sex steroid hormones. Adequate body reserves and energy balance are crit...

Date: 2024   |   Origin: Biblioteca Digital do IPB

Fitting of different intraradicular composite posts to oval tooth root canals: ...

Fernandes, Valter; Fidalgo-Pereira, Rita; Edwards, Jane; Silva, Filipe; Özcan, Mutlu; Carvalho, Óscar; Souza, Júlio C. M.

The purpose of the present study was to perform a preliminary analysis of the fitting of different fiber-reinforced composite (GFRC) posts to tooth root canals and determine the resin cement layer thickness. The following GFRC posts were assessed: bundle posts (Rebilda GTTM, VOCO, Germany), sleeve system (SAPTM, Angelus Ind, Brazil), and accessory posts (ReforpinTM, Angelus, Brazil). Twenty-four freshly extract...


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