Results 51 to 60 of about 4,833,390 (382)

Firms, Informality, and Development: Theory and Evidence from Brazil

The American Economic Review, 2018
This paper develops and estimates an equilibrium model where heterogeneous firms can exploit two margins of informality: (i) not register their business, the extensive margin; and (ii) hire workers “off the books,” the intensive margin.
Gabriel Ulyssea
semanticscholar   +1 more source

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

Advanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies, Marcos Eduardo G. Carmo, Gonçalves J. Marrenjo, Stephan Reuther, Patrick Ganswindt, Antonio Otavio T. Patrocinio, Thomas Bein, Osmando F. Lopes, Jenny Schneider   +8 more
wiley   +1 more source

Interruption of lymphatic filariasis transmission in Manaus, a former focus of Wuchereria bancrofti in the Western Brazilian Amazon

Revista Panamericana de Salud Pública, 2021
Objective. To confirm the absence of Wuchereria bancrofti autochthonous cases in Manaus, a former focus of lymphatic filariasis in the Western Brazilian Amazon. Methods.
Marilaine Martins, Rebeca Cristina Souza Guimarães, Gilberto Fontes   +2 more
doaj   +1 more source

Flux‐Regulated Crystallization of Perovskites Using Machine Learning‐Predicted Solvent Evaporation Rates for X‐Ray Detectors

Advanced Functional Materials, EarlyView.
By integrating machine learning into flux‐regulated crystallization (FRC), accurate prediction of solvent evaporation rates in real time, improving crystallization control and reducing crystal growth variability by over threefold, is achieved. This enhances the reproducibility and quality of perovskite single crystals, leading to reproducible ...
Tatiane Pretto, Sergey Dayneko, Antoine Pavesic Junior, Nicholas Sandor, Alexander Hart, Yuki Haruta, Magdalena Bazalova‐Carter, Marcos J. L. Santos, Makhsud I. Saidaminov   +8 more
wiley   +1 more source

Tensión premenstrual - Clasificación y dificultades diagnósticas

Revista Colombiana de Obstetricia y Ginecología, 1955
Continuando algunos trabajos suyos sobre tensión pre-menstrual, el autor afirma que el 90,4% de las mismas llegarán a tener hipertensión menopáusica. El mismo autor da una clasificación etiológica de la tensión pre-menstrual dividiéndola en cinco grupos
Erio Brazil Pellanda
doaj   +1 more source

Nut production in Bertholletia excelsa across a logged forest mosaic: implications for multiple forest use [PDF]

, 2015
Although many examples of multiple-use forest management may be found in tropical smallholder systems, few studies provide empirical support for the integration of selective timber harvesting with non-timber forest product (NTFP) extraction.
A Chávez, A Lawrence, A Lawrence, A Malmer, AD Johns, AE Duchelle, AE Duchelle, AE Duchelle, AE Duchelle, AJ Plumptre, B Hérault, Betxy Tabita Villarroel Panduro, BW Griscom, BW Griscom, C Baraloto, C Baraloto, C Benneker, C Cerdan Rojas, C García-Fernández, C Herrero-Jáuregui, C Padoch, C Sabogal, CA Klimas, CA Peres, CA Peres, CA Rockwell, Cara A. Rockwell, CL Staudhammer, CP Van Schaik, D Pearce, D Sheil, DP Dykstra, E Lima, E Ortiz, E Vidal, Edwin Eduardo Jurado Rojas, Eleanor Warren-Thomas, Eriks Arroyo Quispe, FE Putz, GH Shepard Jr, GS Amacher, GS Hartshorn, Harol Fernandez Silva, J Ghazoul, J Ghazoul, J Nabe-Nielsen, J Quaedvlieg, J Terborgh, JC Licona, JJ Scullion, JM Pires, JMT Haugaasen, Jonatan Frank Valera Tito, José Andrés Hideki Kohagura Arrunátegui, JQ Chambers, JS Denslow, JS Johns, Juan José Yucra Salas, Julia Quaedvlieg, JW Clay, KA Kainer, KA Kainer, KA Kainer, Kamal Bawa, L Rist, LB Fortini, LHO Wadt, LHO Wadt, Luis Alberto Meza Vega, M Menton, M Pinard, M Pinedo-Vasquez, M Schulze, M Schulze, M Soriano, M Tobler, M Zenteno, M Zenteno, M Zenteno, MA Pinard, MAF Ros-Tonen, Manuel R. Guariguata, Mary Menton, MC Cavalcante, MG Fonseca, MR Guariguata, MR Guariguata, MR Guariguata, MR Trivedi, MW Tobler, OL Phillips, Olivia Revilla Vera, P Barreto, P Cronkleton, P Shanley, P Shearman, P Sist, PA Zuidema, PB Camargo, PM Fearnside, PS Sujii, R Giudice, RE Cossío-Solano, RJW Brienen, Roger Quenta Hancco, RP Salomão, RR Sears, S Humphries, S Shackleton, S Vieira, SA Mori, SA Mori, SG Perz, SK Pattanayak, SV Coslovsky, T Haugaasen, T Panayotou, TJ Synnott, TP Holmes, TS Fredericksen, V Garrish, VM Viana, WC Cano   +122 more
core   +3 more sources

INFLUENZA IN BRAZIL. [PDF]

The Lancet, 1890
n ...
openaire   +2 more sources

The Influence of Annealing on the Sb Layer in the Synthesis of [001]‐Oriented Sb2Se3 Film for Photoelectrochemical Hydrogen Gas Generation

Advanced Functional Materials, EarlyView.
[001]‐oriented Sb2Se3 film with improved crystallinity and adjusted composition is achieved via a new thermal treatment approach consisting of preliminary annealing of the Sb layer before its selenization. The findings of this work demonstrate enhanced charge carriers' transportation, a stable performance, and an improvement of H2 generation from ...
Magno B. Costa, Moisés A. de Araújo, Joaquim Puigdollers, Pablo Ortega, Teresa Andreu, Cristobal Voz, Edgardo Saucedo, Lucia H. Mascaro   +7 more
wiley   +1 more source

Coral snake venoms: mode of action and pathophysiology of experimental envenomation

Revista do Instituto de Medicina Tropical de São Paulo, 1987
Coral snakes, the New World Elapidae, are included in the genera Micniroides and Micrurus. The genus Mlcrurus comprises nearly all coral snake species and those which are responsible for human snake-bite accidents.
Oswald Vital Brazil
doaj   +1 more source

The population of Brazil [PDF]

Revista de Saúde Pública, 1972
In 1970 the population of Brazil with 94,508,554 inhabitants was extreme youth, since 42.67% was composed of children under 14 years old. In that year the proportion of female was 50.2%. The population density increased from 1.17 inhabitants /km² in 1872 to 11.18 in 1970, and in this last year the range was 1.03 in the North region and 43.90 in the ...
openaire   +6 more sources