Exact and Earth Sciences

• Length-weight relationships and relative condition factor of some commercially important fishes and invertebrates in the southwestern sea of Vietnam

  Vu Viet Viet Ha, Tu Hoang Nhan

  Submitted 07/10/2025 - Posted 07/31/2025

  • LENGTH-WEIGHT RELATIONSHIPS
  • ISOMETRIC GROWTH
  • CONDITION FACTOR
  • FISHES
  • INVERTEBRATES

  • PDF
• TRUCK ELECTRIFICATION IN BRAZIL: ECONOMIC, HEALTH AND ENVIRONMENTAL ANALYSIS OF ALTERNATIVE TECHNOLOGIES

  Patricia F Rodrigues, Renata F da Costa, Evangelina Araujo

  Submitted 07/29/2025 - Posted 07/29/2025

  • Truck electrification
  • Sustainable transport
  • Economic analysis
  • Air quality
  • Public policy

  • PDF
• Advances in the use of Systems of Equalities and Inequalities to an analytical demonstration of the Four-Color Theorem.

  Jose Ulisses Jansen

  Submitted 06/16/2025 - Posted 07/08/2025

  • Analytical Demonstration
  • System of Equalities and Inequalities
  • Four-Color Theorem

  • PDF
• Biomass and carbon variation in an Upper Parana Atlantic Forest, Paraguay: a 7-year analysis in a protected landscape

  Natalia Peralta-Kulik, Enrique Arrechea Veramendi, Lidia Pérez de Molas

  Submitted 06/11/2025 - Posted 06/12/2025

  • subtropical forest
  • diameter class
  • forest dynamics
  • permanent plot
  • Laguna Yrendy Protected Landscape

  • PDF (Spanish)
• Managing the risk of marine bioinvasion via biofouling: trends in methods of assessment, policy, and legislation

  Fabio C Xavier, Fernanda C. B. Araujo, Daniela Batista, Luciana V. R. de Messano, Damián Mizrahi, Leandro Calado, Sávio Calazans, Beatriz Vallim, Ricardo Coutinho

  Submitted 04/25/2025 - Posted 04/25/2025

  • RISK MANAGEMENT
  • NON-INDIGENOUS SPECIES
  • RISK ASSESSMENT
  • MARINE BIOINVASION
  • LEGISLATION

  • PDF
• The Mercator projection on the sphere: a deduction without mathematical gaps

  Isaac Ramos, Andrea de Seixas, Silvio Jacks dos Anjos Garnés, Lucas Gonzales Lima Pereira Calado

  Submitted 02/18/2025 - Posted 04/25/2025

  Versions: 2

  • Mathematical Cartography
  • Mapping
  • Cylindrical conformal projection

  • PDF
• SYSTEMATIC LITERATURE REVIEW ON HUMANITARIAN OPERATIONS: RESOURCE OPTIMIZATION AND LOGISTICS IN FORCED DISPLACEMENT SCENARIOS

  Leonardo Rocha, Alan Mathias, Linnyer Beatrys, Rodrigo Clemente

  Submitted 04/11/2025 - Posted 04/11/2025

  • Refugee
  • Migrant
  • Operations Research
  • Facility Location

  • PDF
• A bibliographical study on the importance of pigments observed in colonial Brazil times in the light of the historical-dialectical materialism

  Antonio Marley de Araújo Stedile, Maria Cleide da Silva Barroso, Sergio Paulo Jorge Rodrigues

  Submitted 03/30/2025 - Posted 04/08/2025

  • History of chemistry
  • Pigments
  • Historical-dialectical materialism

  • PDF
• Clonal evaluation of Tectona grandis L.f under three soil and silvicultural management conditions in Nicoya, Abangares and San Carlos

  Ana Paula Pérez Poveda, Rafael Ángel Murillo Cruz, Fernando Ramírez Núñez, William Hernández Castro, David Antonio Carvajal Arroyo, Mónica Lisbeth Cortés Cortés, Ana Gabriela Salazar Ruiz

  Submitted 03/11/2025 - Posted 03/25/2025

  • Clones
  • phenotype
  • genotype
  • genetic parameters
  • selection

  • PDF (Spanish)
• What does recent research reveal about the potential and applicability of Artificial Intelligence for the teaching and learning of Mathematics in Basic Education?

  Saulo Macedo de Oliveira, Angelica Aparecida Pacheco

  Submitted 03/01/2025 - Posted 03/18/2025

  • Basic Education
  • Teaching and Learning Mathematics
  • Artificial Intelligence
  • Systematic Literature Review

  • PDF (Portuguese)
• SeqCup-Free: Sequential and Combinatorial Geometry-Free Identification of Unstable Points for Geodetic Deformation Monitoring

  Vinicius Rofatto, Ivandro Klein, Marcelo Tomio Matsuoka, Paulo de Oliveira Camargo, Mauricio Roberto Veronez, Luiz Gonzaga Jr, Lincon Rodrigues Silva

  Submitted 03/04/2025 - Posted 03/10/2025

  • Quality Control
  • Reliability
  • Non-nested model
  • Hypothesis Testing

  • PDF
• Gaussian Process Regression as an Alternative to Kriging and SVM for Spatial Yield Prediction

  Vinicius Rofatto, Samuel Philippe, George Deroco Martins

  Submitted 02/19/2025 - Posted 02/27/2025

  • Interpolation
  • Spatial Analysis
  • Prediction
  • Machine Learning

  • PDF
• UNDERSTANDING QUANTUM NOTHINGNESS THANKS TO NON-CLASSICAL LOGICS: The Relevance of Free Logic

  Carlos Eduardo Maldonado

  Submitted 11/22/2024 - Posted 11/22/2024

  • Emptiness
  • Dirac
  • The real and the possible
  • Quantum mechanics
  • Representation and objectivity

  • PDF
• Causal relationship between the slightly acid pH of water used for mate and the fast washing of yerba mate

  Bruno Aquino, Tiziana, Maia, Choque, Milagros Varas

  Submitted 10/28/2024 - Posted 11/18/2024

  Versions: 2

  • drinking wáter pH
  • food chemistry
  • yerba mate
  • washing of yerba mate
  • lavado de la yerba mate
  • statistics
  • Hypothesis test

  • PDF
• The Eulerian expression

  Dimas Antonio Herrera

  Submitted 09/10/2024 - Posted 10/14/2024

  • Eulerian expression
  • Function
  • Operator
  • Exponentiation
  • Real number
  • Imaginary number
  • Complex number
  • Proposition
  • Demonstration

  • PDF (Spanish)
• Unprecedented April-May 2024 Rainfall in South Brazil Sets New Record

  Walter Collischonn, Rafael Cabeleira, Nicole Ramalho, Anderson Ruhoff, Rodrigo Paiva, Fernando Fan, Sly Wongchuig, João Breda

  Submitted 09/08/2024 - Posted 09/09/2024

  • rainfall
  • flood
  • record rainfall
  • extreme rainfall
  • depth-area-duration

  • PDF (Portuguese)
• HISTORICAL PROFILE OF THE BURNED AREAS BASED ON MODIS PRODUCTS IN THE CONSERVATION UNITS OF CEARÁ – BRAZIL

  Mauricio Alejandro Perea Ardila

  Submitted 07/13/2024 - Posted 08/19/2024

  Versions: 2

  • Geoprocessing
  • Forest fires
  • Remote sensing

  • PDF (Portuguese)
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