Results 151 to 160 of about 57,088 (258)

The LD50--The Beginning of the End

open access: yes, 1983
Measurement is very important in science. Early lessons in the science classroom involve teaching students to measure lengths, volumes, weights, specific gravities and anything else within the mental and economic compass of the teacher. At the same time,
Rowan, Andrew N.
core  

Genetic diversity and population structure of jute mallow (Corchorus olitorius L.) global collection to guide conservation and breeding

open access: yesThe Plant Genome, Volume 19, Issue 2, June 2026.
Abstract Understanding the genome‐wide diversity of jute mallow (Corchorus olitorius L.) is crucial for unlocking the potential of global genebank collections, enabling the discovery and use of traits that support climate resilience, improve nutrition, and increase productivity.
Abdul J. Shango   +11 more
wiley   +1 more source

Fire‐survival strategies of first‐year acacia seedlings

open access: yesJournal of Ecology, Volume 114, Issue 6, June 2026.
Acacia seedlings (11 of 12 species) acquire some ability to survive grass fires in their first year, either by resisting topkill with thickened stems and/or by regrowing from below‐ground stems. The results suggest that small differences in these fire‐survival strategies at this crucial life stage translate to large differences in savanna physiognomy ...
Arjun B. Potter   +5 more
wiley   +1 more source

Opposing Association of Lung Neutrophils and PD‐L1+ Monocytes in Age‐Related Severity of SARS‐CoV‐2 Infection

open access: yesAging Cell, Volume 25, Issue 6, June 2026.
Aging skews pulmonary myeloid responses during acute SARS‐CoV‐2 infection toward severe disease. Disease progression is characterized by excessive lung neutrophil accumulation together with impaired activation of classical monocytes, including a defect in PD‐L1 upregulation.
Serban Morosan   +20 more
wiley   +1 more source

Second‐generation prokineticin PKR1 receptor agonists: Advancing cardioprotection against chemotherapy‐induced toxicity

open access: yesBritish Journal of Pharmacology, Volume 183, Issue 12, Page 3377-3394, June 2026.
IS39, a novel non‐peptide PKR1 agonist, confers cardioprotection against doxorubicin‐induced toxicity. IS39 activates PKR1‐mediated pro‐survival signalling in cardiomyocytes, reducing reactive oxygen species (ROS), DNA damage and fibrosis markers. In vivo, IS39 preserves cardiac geometry and function in mice exposed to chronic doxorubicin challenge ...
Anais Audebrand   +8 more
wiley   +1 more source

Internalized Evolutionary Inertia on Body Plan Evolution

open access: yesEvolution &Development, Volume 28, Issue 2, June 2026.
Animal development appears to intrinsically bias phenotypic evolution, though the exact mechanism is unclear. This review discusses potential mechanisms by which animal embryogenesis limits phenotypic diversification and considers whether inherent evolutionary inertia could allow us to predict future evolutionary paths.
Wenxin Zeng, Naoki Irie
wiley   +1 more source

Transcriptomic analysis reveals the hepatic response mechanisms of the Chinese spiny frog (Quasipaa spinosa) to Citrobacter freundii infection

open access: yesJournal of the World Aquaculture Society, Volume 57, Issue 3, June 2026.
Abstract To elucidate the pathogen and host response mechanisms underlying mass mortality in Quasipaa spinosa, dominant bacteria were isolated from diseased individuals and identified as Citrobacter freundii by morphological, physiological, and biochemical characterization, 16S rRNA sequencing, and phylogenetic analysis.
Yanhong Li   +7 more
wiley   +1 more source

Update of the risk assessment on dioxins and dioxin‐like PCBs in feed and food

open access: yesEFSA Journal, Volume 24, Issue 6, June 2026.
Abstract The European Commission asked EFSA to update its 2018 risk assessment on polychlorinated dibenzo‐p‐dioxins and dibenzofurans (PCDD/Fs) and dioxin‐like polychlorinated biphenyls (DL‐PCBs) in feed and food, based on the 2022 WHO Toxic Equivalency Factors (WHO2022‐TEFs).
EFSA Panel on Contaminants in the Food Chain (CONTAM Panel)   +27 more
wiley   +1 more source

Better Material Properties and Faster Catalyzed Chemical Recycling for Poly(L‐Lactide) Using a Simple Commercial Glycerol Ethoxylate Additive

open access: yesChemistry – A European Journal, Volume 32, Issue 20, 27 May 2026.
Glycerol ethoxylate (GEO), a branched ethylene glycol derivative, both toughens commercial PLLA and accelerates its chemical recycling to L‐lactide. The lead sample, containing 10 wt.% GEO, shows 9x higher elongation at break and 6x higher tensile toughness than pure PLLA. The GEO–PLLA samples are efficiently chemically recycled to L‐lactide, even when
Madeleine L. Smith   +4 more
wiley   +1 more source

QSAR of caffeines by similarity cluster prediction

open access: yesOpen Chemistry, 2014
Harsa Teodora   +2 more
doaj   +1 more source

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