Results 91 to 100 of about 11,879 (210)

Students at Risk: sociodemographic variables and university dropout

Educação & Realidade
Nearly 30% of Portuguese university students drop out, posing a significant challenge with long-term consequences. This study aimed to identify socio-demographic, economic, and academic factors linked to higher dropout intentions, which is especially ...
Paula Paulino, Sónia Vladimira Correia , Bárbara Gonzalez , Teresa Mendes, Sara Albuquerque   +4 more
doaj   +1 more source

Decoding Heptazine Architectures: From Molecular Association to Structural Insight

Chemistry – A European Journal, EarlyView.
A comprehensive study (NMR and theoretical) of three novel heptazine derivatives that self‐assemble into dimers has been conducted, highlighting their versatility as a platform for multifunctional supramolecular and optoelectronic materials. ABSTRACT Heptazine (Hpz) derivatives display remarkable supramolecular organization governed by noncovalent ...
Silvia del Moral, Daniel Barrena‐Espés, Julen Munarriz, Matthias Lehmann, Pilar Romero, José Luis Serrano   +5 more
wiley   +1 more source

AVALIAÇÃO DOS ÍNDICES HEMATIMÉTRICOS: HEMOGLOBINA, RETICULÓCITOS E FRAÇÃO DOS RETICULÓCITOS IMATUROS EM CRIANÇAS COM E SEM TROMBOCITOPENIA IMUNE PRIMÁRIA

Hematology, Transfusion and Cell Therapy
Introdução e objetivo: Trombocitopenia Imune Primária (PTI) é um distúrbio autoimune caracterizado por uma baixa contagem de plaquetas e aumento do risco de hemorragia mucocutânea. O objetivo foi avaliar os índices hematimétricos presentes no eritrograma,
NC Hoppe, LB Pasqualoto, FG Nascimento, KN Pereira, ISO Tioda, CF Dutra, LE Oliveira, LB Casal, C Paniz, JAM Carvalho   +9 more
doaj   +1 more source

Design and implementation of a 3D‐printed modular distillation tower for experimental teaching in chemical engineering

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Several authors have reported the disconnection between the skills, abilities, and attitudes of graduates from STEM careers with the current needs of the labour market. In science and engineering fields, research has found the need for interdisciplinary approaches that encourage meaningful learning.
Úrsula Manríquez‐Tolsá, Carlos Zaid Bustamante‐Pérez, José Manuel García‐Anaya, Ángel Tlacaelel Ortiz‐Manzano, Roeb García‐Arrazola, Eva Patricia Bermúdez‐García, Diana Iruretagoyena Ferrer, Miguel Ángel Pimentel‐Alarcón   +7 more
wiley   +1 more source

Analysis of Pharmaceutical Active Compounds in Complex Water Samples: Sample Filtration as an Option

Molecules
Sample pretreatment is one of the most important steps in guaranteeing the success of a chromatographic analysis. The selected methodology must ensure simultaneously that a sample is “clean” enough for analysis and that the target analytes are not ...
Sofia Silva, João Rodrigues, Vitor V. Cardoso, Rui N. Carneiro, Cristina M. M. Almeida   +4 more
doaj   +1 more source

Application of dynamic modelling and model‐based predictive control to enhance a cooling tower

The Canadian Journal of Chemical Engineering, EarlyView.
Model predictive control (MPC) applied to improve the operation of cooling towers. Abstract Model predictive control (MPC) differs from traditional feedback control by making predictions within a time horizon, providing better control actions for the process.
Douglas de Almeida Giardini, Adriana Guglielmi Ranieri Miranda, Wilson Hideki Hirota, Bruno Faccini Santoro, José Ermirio Ferreira de Moraes   +4 more
wiley   +1 more source

Review of CFD modelling techniques for single‐phase and multiphase flow in static mixers

The Canadian Journal of Chemical Engineering, EarlyView.
This review synthesizes computational fluid dynamics (CFD) approaches for static mixers, linking hydrodynamics to pressure drop, particle/droplet distributions, mixing metrics, and heat‐transfer performance to guide modelling choices and design decisions. Abstract Static mixers enable compact and low‐energy intensification.
Jussan Jaeger, Sálvio Lima de Carvalho Neto, Silvio Edegar Weschenfelder, Glaucia Rodrigues Vieira de Almeida da Fonseca, Maria de Fátima Rodrigues da Cunha, Selene Maria Arruda Guelli Ulson de Souza, Evandro Balestrin, Adriano da Silva   +7 more
wiley   +1 more source

Stabilization Strategies for Carbon Based Perovskite Solar Cells Under Light, Heat, and Humidity

EcoEnergy, EarlyView.
Carbon‐based MA1−x(AVA)xPbI3/CsPbBr3 QD heterostructures fabricated under ambient conditions exhibit < 5% loss under ISOS‐D‐3 and reversible photo‐induced degradation, revealing the dual role of QDs in defect passivation and dynamic interfacial stabilization.
Emilie Planes, Fatou Diaw‐Ndiaye, Lara Perrin, Maria Bernechea, Lionel Flandin   +4 more
wiley   +1 more source

Screening CZE–UV Green Method for Acetate, Propionate, Butyrate, and Valerate Analysis in Human Stool for Complementary Gut Dysbiosis Diagnosis

ELECTROPHORESIS, EarlyView.
A green CZE–UV alternative method for quantifying SCFAs in human stool with cost‐effective and automatization, informative data about patients through reduced sample preparation and minimal consumable. CE is simple and robust equipment for routine clinical laboratory workflows, supporting physicians with information that enhances the accuracy of ...
Olívia B. O. Moreira, Matheus Miranda Fracetti, Eliane B. T. Lemos, Jeanette C. F. Less, Lúcio M. Lemos, Paula Rocha Chellini, Marcone A. L. Oliveira   +6 more
wiley   +1 more source

By‐product of heparin extraction as a sustainable alternative to enhance the use of nitrogen in agriculture

Environmental Progress &Sustainable Energy, EarlyView.
Abstract This study evaluates the potential of a new organic fertilizer derived from porcine intestinal mucosa (designated BHE), a by‐product of the heparin extraction process, as a sustainable nitrogen (N) source for agriculture. The work was conducted in two stages: (i) chemical and spectroscopic characterization of BHE compared with poultry litter ...
Aline Zanquetti, Felipe Augusto Bueno Rossi, Jonatas Thiago Piva, Larissa Macedo dos Santos‐Tonial   +3 more
wiley   +1 more source