Results 101 to 110 of about 6,468 (198)

Genomic Epidemiology of Multidrug-Resistant Mycobacterium tuberculosis During Transcontinental Spread [PDF]

open access: yes, 2017
The transcontinental spread of multidrug-resistant (MDR) tuberculosis is poorly characterized in molecular epidemiologic studies. We used genomic sequencing to understand the establishment and dispersion of MDR Mycobacterium tuberculosis within a group ...
Barry, Pennan M.   +12 more
core  

Phylogenetic conservatism in the relationship between functional and demographic characteristics in Amazon tree taxa

open access: yesFunctional Ecology, Volume 39, Issue 1, Page 181-198, January 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Leaf and wood functional traits of trees are related to growth, reproduction, and survival, but the degree of phylogenetic conservatism in these relationships is largely unknown.
Pablo Sanchez‐Martinez   +214 more
wiley   +1 more source

Potential unexpected effects of meat reduction in diet: Could educational attainment influence meat substitution strategies?

open access: yesAgricultural and Food Economics
Regulation of meat consumption appears to be a relevant public policy to limit diet-related greenhouse gas emissions. However, the real impact of such a policy (e.g., tax) on human health and nutrition remains uncertain, especially for underprivileged ...
Pierre Levasseur   +3 more
doaj   +1 more source

Event and elevation

open access: yesInscriptions, 2022
What is it like, the event in which we become ourselves? What is its relationship to other kinds of event? And where might the event happen? When people say today that they “stand with” or that they are “allies,” they are challenging hierarchical notions
David Ritchie
doaj  

Machine learning and structural analysis of Mycobacterium tuberculosis pan-genome identifies genetic signatures of antibiotic resistance. [PDF]

open access: yes, 2018
Mycobacterium tuberculosis is a serious human pathogen threat exhibiting complex evolution of antimicrobial resistance (AMR). Accordingly, the many publicly available datasets describing its AMR characteristics demand disparate data-type analyses ...
Anand, Amitesh   +11 more
core   +2 more sources

Characterization of pncA gene mutations in pyrazinamide-resistant Mycobacterium tuberculosis isolates from Mexico

open access: yesInfection, Genetics and Evolution, 2013
Numerous studies have linked mutations in the pncA gene with resistance to pyrazinamide (Z) in Mycobacterium tuberculosis. However, variations in these mutations are specific to the country of origin of the isolate. The aim of this study was to characterize changes in pncA gene sequence in isolates of M. tuberculosis with resistance to Z, from patients
Betzaida, Cuevas-Córdoba   +4 more
openaire   +2 more sources

Robust Hotspot Detection in Photonic Crystals Using a Hybrid Capsule–Transformer Deep Learning Model

open access: yesComplexity, Volume 2025, Issue 1, 2025.
This study introduces a novel hybrid deep learning framework to enhance hotspot detection in photonic crystal design, addressing challenges in accuracy and overfitting. By integrating Capsule Networks (CapsNet) and transformer architectures with ensemble learning and data augmentation, the proposed approach optimizes the identification of wavelength ...
Hassan Salarabadi   +4 more
wiley   +1 more source

Epidemiological Profile and rpoB Gene Mutations in Pulmonary Tuberculosis Patients From Sulaymaniyah, Iraq: Evidence of Novel Genetic Variations and Beijing Lineage Emergence

open access: yesInternational Journal of Microbiology, Volume 2025, Issue 1, 2025.
Tuberculosis (TB), caused by Mycobacterium tuberculosis, remains a significant global public health concern, including in Iraq. This study investigated the epidemiology, molecular characteristics, and rifampicin resistance–associated mutations of pulmonary TB in Sulaymaniyah, Iraq, from May 2024 to May 2025.
Sirwan Mohammed Radha   +3 more
wiley   +1 more source

Detection of Pyrazinamide Resisitance in Mycobacterium Tuberculosis by Sequencing of pncA Gene

open access: yesTuberculosis and Respiratory Diseases, 2001
Background : Examining the biological susceptibility of Mycobacterium tuberculosis to pyrazinamide (PZA) in vitro is very difficult as PZA is inactive under normal culture conditions. The biological susceptibility test, an enzyme assay for Pzase activity, and a genetic test for pncA gene mutations, were performed in order to predict PZA resistance ...
Jee Yoon Hwang   +9 more
openaire   +1 more source

Spoligtyping e polimorfismo do gene pncA: Um cenário em duas etapas para o diagnóstico de Mycobacterium bovis em Portugal

open access: yesRevista Portuguesa de Pneumologia, 2005
Resumo: O diagnóstico diferencial do Mycobacterium bovis é importante no controlo da transmissão para a população humana e também no tratamento da doença, visto que o M. bovis é naturalmente resistente à pirazinamida.
Suzana David   +7 more
doaj   +1 more source

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