Universidade Federal do Paraná

Delivering serious news in palliative care and its relationship with moral distress among physicians: a qualitative study

Abstract Background Communicating serious news is a complex and emotionally demanding task in palliative care and may contribute to moral distress among physicians. This study aimed to explore the moral conflicts that contribute to moral distress among physicians during the commu...

Sensitivity-Based Reference-Time Scaling for Local Orthogonalization of Fractional-Order Model Parameters

Fractional-order models are useful for describing systems with memory, anomalous relaxation, and non-classical dynamic behavior. However, parameter estimation in these models may be affected by strong covariance between the kinetic coefficient and the fractional order, reducing t...

The Fourier transform in variable exponent Lebesgue spaces

Abstract In this work we define a Fourier transform for each $$f\in L^{p(\cdot )}({{\,\mathrm{\mathbb {R}}\,}})$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>f</mml:mi> <mml:mo>∈</mml:mo> <mml:msup> <mml:mi>L</mml:mi> <mml:mrow> <mml:mi>p</mml:mi>...

LC-QTOF-MS Chemical Characterization, Cytotoxicity, and Antimicrobial Activity of Blue Geopropolis: An Emerging Type of Brazilian Propolis

Background/Objectives: This study characterized blue geopropolis from Melipona quadrifasciata quadrifasciata (southern Brazil) by comparing its chemical composition, cytotoxicity, antimicrobial activity, and coloration mechanisms directly against green and red Apis mellifera prop...

Group size and composition of brown howler monkeys (Alouatta guariba) in three fragments of Araucaria Pine Forest in southern Brazil

Brown howler monkeys (Alouatta guariba) are increasingly threatened by habitat loss, sylvatic yellow fever, and negative human interactions. In southern Brazil, brown howlers still inhabit some fragments of the endangered Araucaria Pine Forest (APF), but basic information on thei...

A compendium of next-generation patient-derived models for diverse cancers

Abstract The development of new therapeutics and the validation of pathogenetic cancer mechanisms require representative laboratory models 1,2 . However, existing collections represent only a fraction of the diversity observed in human cancer 2–4 . Recent technologies have enable...

Machine learning–based screening tool for predicting the risk of oropharyngeal dysphagia in patients with ischemic stroke

Abstract Purpose Dysphagia frequently complicates recovery after stroke, necessitating effective predictive tools. This study aimed to develop supervised machine learning models to predict dysphagia risk in ischemic stroke patients. Method We retrospectively analyzed data from 10...

Monitorando e (Re) conhecendo Abelhas sem Ferrão em Rio Rufino (SC)

O monitoramento e o reconhecimento de abelhas sem ferrão no município de Rio Rufino (SC) partem do problema observado de que a comunidade local frequentemente avista esses insetos, mas não consegue identificá-los, confundindo-os com outros insetos e desconhecendo espécies e a pró...

Pathological, microbiological, and molecular characterization of uterine samples in culled sows from farms with a history of reproductive failure in Brazil

Reproductive failure in swine herds is an important cause of production losses and increased sow culling. While many diagnostic efforts focus on abortion-derived samples, the evaluation of reproductive tracts from culled sows may provide additional insights. This study aimed to c...