Most of our work has resulted in scholarly publications. On this page you can review our publications to get an idea about our work.
Lonesome
October, 1997 • Other
Usman, Muhammad Dattijo
Lonesome is a poem by Nigerian writer, educationist and public administrator Muhammad Dattijo Usman. The poem was published in Sands of Time by the National Library of Poetry, USA, in 1997.
This recor…
Lonesome is a poem by Nigerian writer, educationist and public administrator Muhammad Dattijo Usman. The poem was published in Sands of Time by the National Library of Poetry, USA, in 1997.
This record presents a 2026 digital archival edition prepared from a surviving copy preserved in the Muhammad Dattijo Usman Archive. The edition includes bibliographic information, a public facsimile of the surviving document and a diplomatic transcription intended to preserve the wording, capitalization and punctuation of the archival source.
Original publication: Sands of Time, National Library of Poetry, USA, 1997. ISBN 1-57553-424-X.
Archive reference: MDU-P003.
Muhammad Dattijo UsmanLonesomeNigerian poetryNigerian literatureAfrican literature
PHASED study archive | AP3 Model | AP3 marginal benefit of abatement 2000 USD.xlsx
October, 2026 • Dataset
Gazar, Amir M., Jackson, Chloe, Mavrommati, Georgia, Howarth, Rich B., Calder, Ryan S.D.
Original file used in the PHASED study, Correlated uncertainty propagation enables multi-impact decision support for electrical system decarbonization.File: AP3 marginal benefit of abatement 2000 USD.…
Original file used in the PHASED study, Correlated uncertainty propagation enables multi-impact decision support for electrical system decarbonization.File: AP3 marginal benefit of abatement 2000 USD.xlsx. Source group: AP3 Model.Study file location: 4 External Data/AP3 Model/AP3 marginal benefit of abatement 2000 USD.xlsx.This record preserves the original file. Credits and reuse conditions of the original data provider remain applicable. No newly generated webpage figures or summary tables are included.Study manuscript: Correlated uncertainty propagation enables multi-impact decision support for electrical system decarbonization. The five listed authors are the study authors and compilers of this study archive. Original external data remain credited to their providers.Source credit: AP3 ModelReuse: Original source terms apply; no new reuse permission is granted by this archive.Corresponding study author: Ryan S.D. Calder (rsdc@vt.edu).Source citation: Muller, Nicholas Z. AP3/AP2/APEEP air pollution damage model. Historical marginal-damage files retained in the PHASED study archive. Source website.This file is made publicly available for study reproducibility. Any reuse must comply with the original provider's citation, attribution, license and other source requirements. Cite the original source as well as this archived copy. The study authors do not claim authorship of the underlying external source data or grant rights beyond those held by the source provider.Original AP4/AP3/AP2/APEEP model platform: Nick Muller, Carnegie Mellon University. The original model downloads require a free registered account on the provider website. The study-archive files here are publicly downloadable, subject to the source requirements stated above.
Autonomous Integer-Domain Crystal Rail Generation and Nyman–Beurling Subspace Closure for the Riemann Hypothesis
October, 2026 • Publication
Paltoo, Nigel.S.
We present a rigorous, self-contained arithmetic framework for prime generation basedon the BRC crystal rail architecture, operating entirely within the integer domain (Z) withzero floating-point depe…
We present a rigorous, self-contained arithmetic framework for prime generation basedon the BRC crystal rail architecture, operating entirely within the integer domain (Z) withzero floating-point dependencies and zero trial division. By integrating the forward causalcollision scheduler with the Nyman–Beurling and B´aez-Duarte criteria, we map discreteprime scales into L2(0, 1) fractional-part dilation spaces. Constructing regularized Grammatrices via Simpson’s quadrature and solving normal equations, we demonstrate monotonicsquared residual decay (d2N → 0) across recursive horizons scaling to 1,000,000 primes. Thisunconditional subspace closure establishes structural non-circularity and yields deductiveclosure for the Riemann Hypothesis (Q.E.D. falsehood of ζ(s) = 0 for ℜ(s) > 1/2).
Minutes of the ICSP Publications Committee Meetings, Term 2023-2026
April, 2024 • Report
International Committee on Systematics of Prokaryotes
The ICSP Publications Committee comprises ex officio members and acts as liaison between the ICSP and its journals. It meets on demand. These are its minutes for the ICSP term 2023-2026.
A deterministic node placement algorithm used in graph visualization. In this layout, nodes are arranged sequentially along a defined primary axis. Each subsequent node is then alternately offset alon…
A deterministic node placement algorithm used in graph visualization. In this layout, nodes are arranged sequentially along a defined primary axis. Each subsequent node is then alternately offset along a secondary, perpendicular axis, typically moving to one side of the primary axis and then the other. Often, the magnitude of this secondary offset increases as nodes progress along the primary axis, creating a characteristic zig-zag or serpentine pattern.
Reproducibility data and code for integrated thermodynamic and diffusive contribution classification in synthetic membrane permeation profiles
October, 2026 • Dataset
Ferreira, Fabio Jorge de Nazare, Guilhon-Simplicio, Fernanda
This record archives reproducibility data, scientific source code, configurations and instructions for the study “Classificação integrada das contribuições termodin&a…
This record archives reproducibility data, scientific source code, configurations and instructions for the study “Classificação integrada das contribuições termodinâmica e difusiva em um modelo de permeação por membranas lipídicas”, by Fábio Jorge de Nazaré Ferreira and Fernanda Guilhon-Simplicio (Universidade Federal do Amazonas, Brazil).The package includes the original 17-parameter Gaussian profile model; 65,536 Sobol candidates and acceptance records; 56,926 accepted profiles; the original and numerically revised production tables; four-state integrated contribution calculations; a constructive pair with identical extrema and opposite integrated classifications; domain and sampling sensitivity results; numerical refinement, direct Fokker–Planck checks and selected Brownian controls; and final figures. The full archive contains input protocols, executed environments, seeds, source provenance, tabular schemas and SHA-256 manifests. A lightweight code distribution is included separately for GitHub.Quick verification checks archived file integrity and reported numerical results without running a new scientific campaign. Instructions also describe regeneration of analyses and the more expensive full calculations. Integrated/proxy disagreement is 7.68% in this filtered synthetic ensemble; it is not an experimental prevalence. Six corrected production records preserve all parameters and classifications. Numerical error estimates are not certified bounds; physical uncertainty is unquantified. FP/BD check the same formalism, not experimental validity. Brownian controls do not cover the full ensemble, and the new boundary-control classification remains unresolved.Version: 1.0.0. Python/C++ code and tests: MIT. Original data, configurations, figures and documentation: CC BY 4.0. Third-party publications are not redistributed. The authors’ counterfactual antecedent, DOI 10.1021/acs.jpcb.6c02574, is credited; that article DOI is not the identifier of this dataset.
Produção e produtividade leiteira nos municípios de Alagoas, Brasil (2019–2023): dados e códigos para análise em painel
October, 2026 • Dataset
Lima de Amorim, Philipe, Araújo Filho, José Teodorico, Maia de Albuquerque Mariz, Tobyas, Rego Cabral Junior, Cyro
Este conjunto de dados e códigos reúne os materiais utilizados no estudo da produção e da produtividade leiteira nos 102 municípios do estado de Alagoas, Brasil, no …
Este conjunto de dados e códigos reúne os materiais utilizados no estudo da produção e da produtividade leiteira nos 102 municípios do estado de Alagoas, Brasil, no período de 2019 a 2023.
O estudo foi desenvolvido a partir de dados secundários de acesso público organizados em estrutura longitudinal de painel. As informações sobre produção anual de leite e número de vacas ordenhadas foram obtidas da Pesquisa da Pecuária Municipal (PPM), disponibilizada pelo Instituto Brasileiro de Geografia e Estatística (IBGE) por meio do Sistema IBGE de Recuperação Automática (SIDRA). Os indicadores econômicos municipais foram obtidos de bases oficiais do IBGE. A precipitação anual municipal foi derivada de dados do Climate Hazards Group InfraRed Precipitation with Station data (CHIRPS), versão 2.0.
A produtividade leiteira foi calculada como a razão entre a produção anual de leite e o número de vacas ordenhadas, sendo expressa em litros por vaca por ano (L/vaca/ano). O PIB per capita municipal foi obtido em valores nominais correntes nas bases oficiais do IBGE e, para as análises longitudinais, convertido para preços de 2023 no script de reprodução disponibilizado neste depósito.
O banco analítico contempla os 102 municípios de Alagoas acompanhados entre 2019 e 2023. A estrutura completa corresponde a 510 combinações município-ano. Em razão da ausência de informações produtivas em quatro registros, as análises da produtividade foram realizadas com 506 observações município-ano, constituindo um painel levemente desbalanceado.
A análise inferencial foi baseada em modelos de dados em painel, com ênfase em um modelo híbrido within–between (correlated random effects/Mundlak). Essa abordagem permitiu distinguir associações relacionadas às mudanças ocorridas dentro de um mesmo município ao longo do tempo (within) das associações decorrentes de diferenças médias entre municípios (between). A inferência foi realizada com erros-padrão robustos agrupados por município.
O depósito inclui o banco analítico, scripts desenvolvidos em linguagem R e materiais necessários à reprodução das principais etapas de processamento, análise estatística, elaboração das tabelas e construção das figuras utilizadas no estudo.
Os materiais são disponibilizados com a finalidade de promover transparência, rastreabilidade e reprodutibilidade da pesquisa, respeitando as condições de utilização e citação das fontes públicas originais.
Fontes principais dos dados: Instituto Brasileiro de Geografia e Estatística (IBGE/SIDRA) e Climate Hazards Center – CHIRPS v2.0.
Período do estudo: 2019–2023.Unidade de análise: município-ano.Abrangência geográfica: 102 municípios do estado de Alagoas, Brasil.Software de análise: R.
DOI: 10.5281/zenodo.23122113
Milk productionMilk productivityDairy cattlePanel dataWithin-between model
International Committee on Systematics of Prokaryotes
In 2020, the ICSP — representing microbiologists worldwide — rejected a SeqCode-like proposal by a clear majority. The ICSP specifically rejected the idea of allowing DNA sequences to be u…
In 2020, the ICSP — representing microbiologists worldwide — rejected a SeqCode-like proposal by a clear majority. The ICSP specifically rejected the idea of allowing DNA sequences to be used as nomenclatural types of taxa with a validly published name. It did so for a number of reasons. This rejection applied not only to gene sequences, but also to genome sequences as nomenclatural types of taxa with a validly published name.
The SeqCode contravenes the ICNP by design because it implements the proposal that was rejected by the ICSP. The SeqCode deems names to be 'validly published' even if they are based on a sequence as a nomenclatural type. This means that every name 'validly published' under the SeqCode creates an additional logical contradiction with the ICNP.
Furthermore, the SeqCode was derived from the ICNP without the ICSP's approval. This document explores the extent to which the SeqCode literally copies the ICNP, raising additional ethical questions.
Coarse-grained 64² stochastically forced two-dimensional turbulence: training data for "Only Linear Constraints Survive Coarse-Graining" (NeurIPS 2026 Workshop on AI for Stochastic Dynamics)
October, 2026 • Dataset
Groom, Michael
Coarse-grained snapshots of stochastically forced two-dimensional incompressible turbulence on the periodic domain (0, 2π)², used as the unresolved case (E2) in "Only Linear Constraints Surviv…
Coarse-grained snapshots of stochastically forced two-dimensional incompressible turbulence on the periodic domain (0, 2π)², used as the unresolved case (E2) in "Only Linear Constraints Survive Coarse-Graining: Evaluating Physics-Constrained Neural Operators on Stochastically Forced Turbulence" (NeurIPS 2026 Workshop on AI for Stochastic Dynamics).
Five realisations were integrated with Dedalus 3.0.4 at 1024² to t = 2000, with viscosity ν = 9.3×10⁻⁶, linear drag α = 3×10⁻³, and an Ornstein–Uhlenbeck forcing confined to |k| ∈ [56, 72] with injection rate ε = 1.71×10⁻⁵ and correlation time τ = 0.3, at a solver step of 8×10⁻³. Data before t = 924.8 (spin-up) are discarded. Fields are written at 64² every 0.08 time units by a sharp spectral cutoff at |kₓ|, |k_y| ≤ 31, placed below the forcing band, so that the forcing is entirely subgrid on the coarse field; every fifth snapshot is retained, giving a model step of Δt = 0.4 and 2,688 consecutive snapshot pairs per realisation. Channels are the two velocity components and pressure. Simulation seeds 1234–1236 are the training realisations, 1237 validation and 1238 test.
The record contains the coarse arrays for the five realisations, plus the normalisation statistics computed from the training inputs. The solver configuration is at https://github.com/m-groom/NS2D and the preparation script (data_utils/prepare_ns2d_stochastic.py), training and evaluation code at https://github.com/m-groom/physics-constrained-neural-operators.
There is an increasing interest in upgrading the EModel, a parametric tool for speech quality estimation, to the wideband and super-wideband contexts. The
Contemporary models of Unmanned Aerial Vehicles (UAVs) are largely developed using simulators. In a typical scheme, a flight simulator is dovetailed with a
Undertaking engineering research can be compounding for beginning graduate students and thwarting even for seasoned researchers. With a wealth of academic
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