Search results for: I. Costa

Items from 1 to 20 out of 126 results

article

Model predictive control for continuous lactide ring‐opening polymerization processes

Nawel Afsi, Sami Othman, Toufik Bakir, Liborio I. Costa, more

Asian Journal of Control > 23 > 1 > 92 - 104

Polylactic acid (PLA) is an attractive environment‐friendly thermoplastic that is bio‐sourced and biodegradable. PLA is industrially produced by the ring‐opening polymerization of lactide. This reaction is sensitive to drifts in the operating conditions and impurities in the raw materials that may affect the reaction rate as well as the polymer properties, which can be very costly in continuous processes...

article

ZnO nanorods-gold nanoparticle-based biosensor for detecting hepatitis C

Glenda Biasotto, João Paulo C. Costa, Paulo I. Costa, Maria A. Zaghete

Applied Physics A > 2019 > 125 > 12 > 1-7

ZnO nanorods comprised of biosensors with Au nanoparticles are described in this study for detecting Hepatitis C virus (HCV). The biosensor device was constructed on a glass substrate with silver and gold electrodes. The ZnO nanorods were grown by microwave hydrothermal synthesis, and the Au nanoparticles were deposited by the sputtering method. The Au nanoparticles were deposited because of the right...

article

Effect of surface treatments on the localized corrosion resistance of the AA2198‐T8 aluminum lithium alloy welded by FSW process

Caruline S. C. Machado, Rafael E. Klumpp, Victor H. Ayusso, Uyime Donatus, more

Surface and Interface Analysis > 51 > 12 > 1231 - 1239

In this work, the effect of eight types of surface treatments on the corrosion resistance of friction stir welded samples of an AA2198‐T8 Al‐Cu‐Li alloy were tested and compared in an attempt to find suitable alternatives to toxic and carcinogenic hexavalent chromium treatments. All the samples were anodized and subjected to different post‐anodizing treatments. The post‐anodizing treatments were (1)...

article

Heparin is biocompatible and can induce differentiation of human dental pulp cells

E. M. Rodrigues, A. L. G. Cornélio, P. H. Godoi, P. I. Costa, more

International Endodontic Journal > 52 > 6 > 829 - 837

Aim To investigate the biocompatibility, osteogenic bioactivity and mRNA expression of the osteo/odontogenic markers bone morphogenetic protein 2 (BMP‐2), osteocalcin (OC) and alkaline phosphatase (ALP), induced by heparin in human dental pulp cells (hDPCs). Methodology hDPCs were exposed to the heparin, and cell viability was assessed by 3‐(4,5‐dimethylthiazol)‐2,5‐diphenyltetrazolium bromide...

article

Linguistic entrepreneurship as affective regime: organizations, audit culture, and second/foreign language education policy

Peter I. Costa, Joseph Park, Lionel Wee

Language Policy > 2019 > 18 > 3 > 387-406

Conceived as the act of aligning with the moral imperative to enhance one’s worth in the world through a strategic management of language-related resources (De Costa et al. in Asia Pac Educ Res 25(5–6):695–702, 2016), linguistic entrepreneurship is used as a framework to guide this paper that examines the growing influence of neoliberalism within the broader ecology of second and foreign language...

article

Impact of sarcopenia on the global survival of patients with prostate cancer with metastatic debut treated with androgenic-deprivation therapy

M.A. Rosado, J. Muñoz, A. Dominguez, D. García, more

Clinical Nutrition > 2018 > 37 > S1 > S177

article

Exploring the language policy and planning/second language acquisition interface: ecological insights from an Uyghur youth in China

Yawen Han, Peter I. Costa, Yaqiong Cui

Language Policy > 2019 > 18 > 1 > 65-86

Building on recent calls to examine the material realities of people’s lives, our paper explores how developments in ecological approaches to second language acquisition (SLA) and recent SLA identity work can help advance the language policy and planning (LPP) research agenda. To this end, we draw on (1) the multi-level transdisciplinary framework for SLA in a multilingual world put forward by the...

article

Second Language Acquisition and world Englishes: Dialogue and engagement

Peter I. Costa, Dustin Crowther

World Englishes > 37 > 1 > 19 - 33

In spite of the explosive growth in the global use of English, the subfields of Second Language Acquisition and world Englishes have failed to establish a synergistic relationship that can propel both areas of research forward well into the 21st century. In this pedagogically‐oriented article, we survey how previously established barriers between these vibrant disciplines have begun to erode, and...

article

World Englishes and Second Language Acquisition: Introduction

Kingsley Bolton, Peter I. Costa

World Englishes > 37 > 1 > 2 - 4

article

Ecological Footprint as a sustainability indicator to analyze energy consumption in a Portuguese textile facility

I. Costa, F. G. Martins, I. Alves

International Journal of Energy and Environmental Engineering > 2019 > 10 > 4 > 523-528

The main objective of this paper is to apply Ecological Footprint methodology as a tool to analyze the Portuguese textile industry. This analysis is related to energy and resources consumption in dyeing, printing and finishing processes. It also includes identification of mitigation measures to increase energy efficiency, promoting at the same time the reduction of CO₂ emissions and consequently the...

article

Efficacy of Mycophenolate Mofetil and Oral Cyclophosphamide on Skin Thickness: Post Hoc Analyses From Two Randomized Placebo‐Controlled Trials

Rajaie Namas, Donald P. Tashkin, Daniel E. Furst, Holly Wilhalme, more

Arthritis Care & Research > 70 > 3 > 439 - 444

Objective To assess the efficacy of mycophenolate mofetil (MMF) and cyclophosphamide (CYC) on modified Rodnan skin score (MRSS) in participants enrolled in the Scleroderma Lung Study (SLS) I and II. Methods SLS I participants received daily oral CYC or matching placebo for 1 year, whereas SLS II participants received daily MMF for 2 years or daily oral CYC for 1 year followed by placebo for second...

article

Cationic R‐Substituted‐Indenyl Nickel(II) Complexes of Arsine and Stibine Ligands: Synthesis, Characterization, and Catalytic Behavior in the Oligomerization of Styrene

Clara S. B. Gomes, Sandra I. Costa, Leonel C. Silva, Manuel Jiménez‐Tenorio, more

European Journal of Inorganic Chemistry > 2018 > 5 > 597 - 607

A series of new cationic R_n‐substituted‐indenyl nickel(II) complexes containing arsine or stibine ligands were synthesized in moderate to very high yields by the protonation of the corresponding bis(indenyl) nickel derivatives [Ni(η‐R_n‐Ind)₂] with HBF₄, in the presence of 2 equiv. of AsPh₃ or SbPh₃ donor ligands. These complexes, with the general formula [Ni(η‐R_n‐Ind)(EPh₃)₂]BF₄ (E = As, Sb), were...

article

Preparation and characterization of alloys of the Ti–15Mo–Nb system for biomedical applications

J. R. S. Martins Júnior, A. A. Matos, R. C. Oliveira, M. A. R. Buzalaf, more

Journal of Biomedical Materials Research Part B: Applied Biomaterials > 106 > 2 > 639 - 648

In the development of new metallic biomaterials, the Ti–15Mo alloy has great prominence because of its excellent corrosion resistance and good combination of mechanical properties. In this study, the element niobium was added to the Ti–15Mo alloy, forming the Ti–15Mo–Nb system for the purpose of improving their properties and promoting its application as a biomaterial. These alloys are very promising...

article

Electrochemical immunosensor based on ZnO nanorods-Au nanoparticles nanohybrids for ovarian cancer antigen CA-125 detection

Gisane Gasparotto, João Paulo C. Costa, Paulo I. Costa, Maria A. Zaghete, more

Materials Science and Engineering: C > 2017 > 76 > C > 1240-1247

In this research, ZnO nanorods - Au nanoparticles nanohybrids have been fabricated and employed to sensitive electrochemical strategy for the specific detection of the ovarian cancer antigen CA-125/MUC126. The microdevice was developed in our lab based on gold and silver electrodes sputtered on glass substrate. The ZnO nanorods arrays were grown on working electrode using assisted microwave hydrothermal...

article

Residential unit for the elderly: Cases study and reflections on the first 18months of functioning

A. Amaral, A.S. Machado, I. Costa

European Psychiatry > 2017 > 41 > S > S645

The Residential Unit for the Elderly (RUE) was established in August 2015 and has capacity for 8 inpatients. It is intended to behavioral reorganization and caregiver rest of elderly patients with behavioral changes, particularly in cases of cognitive impairment.We intend to describe the hospitalized population in the first 18months and discuss the unit functioning and its impact on clinical stability...

article

Expanding the Language Teacher Identity Landscape: An Investigation of the Emotions and Strategies of a NNEST

Dominik Wolff, Peter I. Costa

The Modern Language Journal > 101 > S1 > 76 - 90

This article aims to broaden the scope of language teacher identity research by investigating the emotional demands on teachers‐in‐training and nonnative English‐speaking teachers (NNESTs) in particular. We examined how our focal NNEST participant, Puja, was confronted with and successfully negotiated numerous emotional challenges in her first year in a U.S. MATESOL program. Furthermore, we investigated...

article

Introduction: Identity, Transdisciplinarity, and the Good Language Teacher

Peter I. Costa, Bonny Norton

The Modern Language Journal > 101 > S1 > 3 - 14

What constitutes a “good teacher” and “good teaching” has come under much scrutiny in an age of globalization, transnationalism, and increased demands for accountability. It is against this evolving landscape and the pathbreaking work of the Douglas Fir Group (DFG, 2016) that this special issue engages the following two broad questions: (a) In what ways is language teaching “identity work”? and (b)...

article

Meaningful timescales from Monte Carlo simulations of particle systems with hard-core interactions

Liborio I. Costa

Journal of Computational Physics > 2016 > 326 > C > 773-779

A new Markov Chain Monte Carlo method for simulating the dynamics of particle systems characterized by hard-core interactions is introduced. In contrast to traditional Kinetic Monte Carlo approaches, where the state of the system is associated with minima in the energy landscape, in the proposed method, the state of the system is associated with the set of paths traveled by the atoms and the transition...

article

Control Strategy and Comparison of Tuning Methods for Continuous Lactide Ring‐Opening Polymerization

Liborio I. Costa, Ulla Trommsdorff

Chemical Engineering & Technology > 39 > 11 > 2117 - 2125

Polylactic acid is industrially produced by ring‐opening polymerization of lactide. This reaction is extremely sensitive to the level of monomer contaminants, thus posing some challenges for the operability of continuous processes. A control strategy was designed and the corresponding controller parameters were determined using gProms simulations by applying the Ziegler‐Nichols, Tyreus‐Luyben, and...

chapter

Impact evaluation of the network geometric model on power quality indices using probabilistic techniques

M. A. da Rosa, G. Bolacell, I. Costa, D. Calado, more

2016 International Conference on Probabilistic Methods Applied to Power Systems (PMAPS) > 1 - 8

2016 International Conference on Probabilistic Methods Applied to Power Systems (PMAPS)

Distribution Power System performance assessment is usually based on continuity indicators and power quality measurements. Generally, these evaluations are performed using distinct mechanisms, where continuity is assessed by past network performance observations and/or predicted simulation, whereas power quality is evaluated using electronic measurements. In fact, the concepts of reliability and power...

Publication date

Set your own date range

Content availability

Available (122)
None (4)

Publication type

article (122)
book (4)

Publication language

English (125)
German (1)

Keywords

CORROSION (20)
CARBON STEEL (5)
CALIXARENE (4)
ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY (4)
FLUORESCENCE (4)
PHOSPHATING (4)
CORROSION PROTECTION (3)
CYTOTOXICITY (3)
EIS (3)
ELECTROCHEMICAL TECHNIQUES (3)
LIQUID CRYSTALS (3)
NICKEL (3)
RING‐OPENING POLYMERIZATION (3)
SEM (3)
XPS (3)
13.85.NI (2)
25.80.LS (2)
316L (2)
ACETOXYPROPYLCELLULOSE (2)
ALUMINUM (2)
BIOMATERIAL (2)
BIOPOLYMERS (2)
CALIXARENES (2)
CORROSION INHIBITORS (2)
CYCLOPOLYMERIZATION (2)
EAR PIERCING STUDS (2)
ELECTRO-OPTICAL PROPERTIES (2)
EXPLOSIVES (2)
FRICTION STIR WELDING (2)
INDENYL LIGANDS (2)
INVESTMENT (2)
LOOP REACTOR (2)
NDFEB (2)
NIOBIUM AMMONIUM OXALATE (2)
NOROVIRUS (2)
PACS (2)
PDLC (2)
POLYLACTIC ACID (2)
POLYMER (2)
RELIABILITY (2)
SIGMA PHASE PRECIPITATION (2)
SURFACE TREATMENT (2)
ZINC PHOSPHATE (2)
1,5-CYCLOOCTADIENE (1)
12.38.QK (1)
14.40LB (1)
17‐4 PH (1)
2′-C-METHYL NUCLEOSIDE ANALOGUES (1)
A. ALUMINIUM (1)
A. INTERMETALLICS (1)
A1. RECRYSTALLIZATION (1)
A2. FLOATING ZONE TECHNIQUE (1)
AA 6082 (1)
AA1050 ALUMINUM (1)
AA2024‐T3 (1)
AA2198‐T8 (1)
AA2198‐T851 ALLOY (1)
AA3003 ALUMINUM ALLOY (1)
AA4006 ALLOY (1)
AFFECTIVE REGIME (1)
AISI 316L(N) STAINLESS STEEL (1)
ALLERGIC REACTIONS (1)
ALLOGENEIC HEMATOPOIETIC STEM CELL TRANSPLANT (1)
ALLOYS (1)
ALUMINIUM ALLOY (1)
AL‐FE‐SI SYSTEM (1)
ANODIZED LAYER (1)
ANTIGEN-SPECIFIC T CELLS (1)
ANTIMICROBIAL ACTIVITY (1)
ANTIVIRAL ACTIVITY (1)
ARYLENE ETHYNYLENE (1)
AS LIGANDS (1)
AU NANOPARTICLES (1)
AUDIT CULTURE (1)
AUGER ELECTRON SPECTROSCOPY (AES) (1)
B. EIS (1)
B. SEM (1)
B. TEM (1)
B2. SEMICONDUCTING SILICON (1)
B3. SOLAR CELLS (1)
BALANCED SCORECARD (1)
BEACH SAND (1)
BENZOTRIAZOLE (1)
BIOMATERIALS (1)
BK VIRUS ENCEPHALITIS (1)
BOND BEHAVIOUR (1)
BONE MORPHOGENETIC PROTEIN‐2 (1)
BUSINESS STRATEGY (1)
CA-125 (1)
CALIX[4]ARENE (1)
CARBAZOLE (1)
CATALYST QUENCHING (1)
CD8+ T CELLS (1)
CELLULOSE ELASTOMER (1)
CERIUM (1)
CERIUM CONVERSION COATING (1)
CERIUM CONVERSION LAYER (1)
CERIUM NITRATE (1)
CHEMICAL CONVERSION (1)
CHROMATE (1)
more

Data set

Elsevier (75)
Wiley (28)
Springer (15)
ieee (5)
ACS (2)
BazTech (1)

Journal

Journal of Clinical Virology (11)
Surface & Coatings Technology (10)
European Psychiatry (5)
Materials and Corrosion (5)
Journal of Magnetism and Magnetic Materials (4)
Reactive and Functional Polymers (4)
EJC Supplements (3)
European Journal of Cancer (3)
Language Policy (3)
Physics Letters B (3)
Surface and Interface Analysis (3)
Electrochimica Acta (2)
Opto-Electronics Review (2)
Sensors & Actuators: B. Chemical (2)
Strain (2)
Surface and Coatings Technology (2)
The Modern Language Journal (2)
World Englishes (2)
ATZextra (1)
ATZextra worldwide (1)
Acta Biomaterialia (1)
Applied Physics A (1)
Arthritis Care & Research (1)
Asian Journal of Control (1)
Biochemical and Biophysical Research Communications (1)
Carbohydrate Polymers (1)
Cellulose (1)
Cement and Concrete Composites (1)
Chemical Engineering & Technology (1)
Clinical Nutrition (1)
Computer Applications in Engineering Education (1)
Corrosion Science (1)
Current Opinion in Immunology (1)
Electronics Letters (1)
European Journal of Inorganic Chemistry (1)
European Journal of Pain (1)
European Journal of Pain Supplements (1)
Food Hydrocolloids (1)
International Endodontic Journal (1)
International Journal of Energy and Environmental Engineering (1)
International Journal of Pharmaceutics (1)
Journal of Alloys and Compounds (1)
Journal of Applied Electrochemistry (1)
Journal of Applied Ichthyology (1)
Journal of Biomedical Materials Research Part B: Applied Biomaterials (1)
Journal of Computational Physics (1)
Journal of Crystal Growth (1)
Journal of Electroanalytical Chemistry (1)
Journal of Immunological Methods (1)
Journal of Materials Engineering and Performance (1)
Journal of Materials Processing Tech. (1)
Journal of Materials Science: Materials in Medicine (1)
Journal of Organometallic Chemistry (1)
Journal of Prosthodontics (1)
Journal of Radioanalytical and Nuclear Chemistry (1)
Language Learning (1)
Macromolecular Chemistry and Physics (1)
Macromolecular Symposia (1)
Macromolecules (1)
Materials Characterization (1)
Materials Science and Engineering: C (1)
Organometallics (1)
Polyhedron (1)
Polymer Engineering & Science (1)
Protoplasma (1)
Science of the Total Environment (1)
Solar Energy Materials and Solar Cells (1)
Tetrahedron: Asymmetry (1)
Tetrahedron Letters (1)
The International Journal of Advanced Manufacturing Technology (1)
Toxicology in Vitro (1)
Transplant Infectious Disease (1)
more

INFONA - science communication portal

Search results for: I. Costa

Model predictive control for continuous lactide ring‐opening polymerization processes

ZnO nanorods-gold nanoparticle-based biosensor for detecting hepatitis C

Effect of surface treatments on the localized corrosion resistance of the AA2198‐T8 aluminum lithium alloy welded by FSW process

Heparin is biocompatible and can induce differentiation of human dental pulp cells

Linguistic entrepreneurship as affective regime: organizations, audit culture, and second/foreign language education policy

Impact of sarcopenia on the global survival of patients with prostate cancer with metastatic debut treated with androgenic-deprivation therapy

Exploring the language policy and planning/second language acquisition interface: ecological insights from an Uyghur youth in China

Second Language Acquisition and world Englishes: Dialogue and engagement

World Englishes and Second Language Acquisition: Introduction

Ecological Footprint as a sustainability indicator to analyze energy consumption in a Portuguese textile facility

Efficacy of Mycophenolate Mofetil and Oral Cyclophosphamide on Skin Thickness: Post Hoc Analyses From Two Randomized Placebo‐Controlled Trials

Cationic R‐Substituted‐Indenyl Nickel(II) Complexes of Arsine and Stibine Ligands: Synthesis, Characterization, and Catalytic Behavior in the Oligomerization of Styrene

Preparation and characterization of alloys of the Ti–15Mo–Nb system for biomedical applications

Electrochemical immunosensor based on ZnO nanorods-Au nanoparticles nanohybrids for ovarian cancer antigen CA-125 detection

Residential unit for the elderly: Cases study and reflections on the first 18months of functioning

Expanding the Language Teacher Identity Landscape: An Investigation of the Emotions and Strategies of a NNEST

Introduction: Identity, Transdisciplinarity, and the Good Language Teacher

Meaningful timescales from Monte Carlo simulations of particle systems with hard-core interactions

Control Strategy and Comparison of Tuning Methods for Continuous Lactide Ring‐Opening Polymerization

Impact evaluation of the network geometric model on power quality indices using probabilistic techniques

Filter options

Publication date

Content availability

Publication type

Publication language

Keywords

Data set

Journal

INFONA - science communication portal

Search results for: I. Costa

Add recipient

Sending message cancelled

Are you sure you want to cancel sending this message?

Send message

Filter options

Publication date

Date range setting

Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.

Content availability

Publication type

Publication language

Keywords

Data set

Journal

Reporting an error / abuse

Sending the report failed

Accessibility options