Results 41 to 50 of about 633 (144)

Cryogen‐Aided Chromatographic Purification of Millimole Quantities of Methane for Spectroscopic Clumped Isotope Analysis

Rapid Communications in Mass Spectrometry, Volume 40, Issue 18, 30 September 2026.
ABSTRACT Rationale Quantum cascade laser absorption spectroscopy (QCLAS) is a fast and reliable method for analyzing the bulk (𝛿13C‐CH4, 𝛿D‐CH4) and clumped isotopic (∆13CH3D and ∆12CH2D2) composition of methane. However, precise measurements of ∆12CH2D2 require 0.5 to 1.8 mmol of purified methane (equivalent to 15 to 40 mL at STP).
Nico Kueter, Jan G. C. Meissner, Naizhong Zhang, Léna Msonnereau, Lukas Emmenegger, Joachim Mohn, Stefano M. Bernasconi   +6 more
wiley   +1 more source

Meat Intake and Risk of Gastric and Esophageal Adenocarcinoma in the European Prospective Investigation Into Cancer and Nutrition (EPIC) Study

International Journal of Cancer, Volume 159, Issue 5, Page 1176-1187, 1 September 2026.
Limited evidence links processed meat intake and non‐cardia gastric cancer, while esophageal adenocarcinoma is increasing in Western countries, where diets are typically high in red and processed meats. Using data from over 450,000 participants from a large prospective study, the authors examined meat consumption and the risk of gastric and esophageal ...
Catalina Bonet, Lucía Rizzolo‐Brime, Sara Montañés, Mariem Hajji, Chloé Marques, Gianluca Severi, Matthias B Schulze, Christina C. Dahm, Anne Tjønneland, Anja Olsen, Maria S. De Magistris, Valeria Pala, Alberto Catalano, Guri Skeie, Magritt Brustad, Torill Enget Jensen, Maria‐José Sánchez, Marcela Guevara, Natalia Cabrera Castro, Keren Papier, Elisabete Weiderpass, Viktoria Knaze, Jin Young Park, Gwen Murphy, Antonio Agudo, Paula Jakszyn   +25 more
wiley   +1 more source

Neutrino masses in the mirror twin Higgs with spontaneous ℤ 2 breaking

Journal of High Energy Physics
We introduce a mirror twin Higgs model with spontaneous ℤ 2 symmetry breaking that ameliorates the constraints in twin Higgs cosmology and, at the same time, generates the Standard Model neutrino masses.
Pedro Bittar, Davi B. Costa, Gustavo Burdman   +2 more
doaj   +1 more source

Oblique corrections from leptoquarks

Journal of High Energy Physics, 2023
We present general formulas for the oblique-correction parameters S, T, U, V, W, and X in a model of New Physics having arbitrary numbers of scalar leptoquarks of the five permissible types.
Francisco Albergaria, Luís Lavoura
doaj   +1 more source

CD44‐Targeting Hydroxyapatite Nanoparticles (HAP) Induce Mitochondrial Dysfunction‐Driven PANoptosis and Immunogenic Cell Death (ICD) via Ca Overload in Colorectal Cancer

Advanced Science, Volume 13, Issue 42, 28 July 2026.
ABSTRACT Colorectal cancer (CRC) remains therapeutically challenging due to high metastasis, recurrence, and immunotherapy resistance driven by tumor microenvironment‐mediated immune evasion. Immunogenic cell death (ICD) offers a promising strategy to reshape the immune microenvironment, yet existing ICD inducers suffer from poor targeting efficiency ...
Yao Xiao, Yuxuan Yang, Haosen Qiu, Jia Yang, Hao Liang, Zhaojun Jiang, Xiao Tong, Yongying Li, Qunfeng Huang, Jiaming Wu, Tian Lin, Jiang Yu, Min Liang   +12 more
wiley   +1 more source

Extended color twin Higgs

Journal of High Energy Physics
We describe a novel variation of the mirror twin Higgs model in which the color gauge group in both sectors is extended to SU(4) c and spontaneously broken to SU(3) c exclusively in the visible sector.
Brian Batell, Thomas Cochran, Logan Page, Christopher B. Verhaaren   +3 more
doaj   +1 more source

How many 1-loop neutrino mass models are there?

Journal of High Energy Physics, 2022
It is well-known that at tree-level the d = 5 Weinberg operator can be generated in exactly three different ways, the famous seesaw models. In this paper we study the related question of how many phenomenologically consistent 1-loop models one can ...
Carolina Arbeláez, Ricardo Cepedello, Juan Carlos Helo, Martin Hirsch, Sergey Kovalenko   +4 more
doaj   +1 more source

Evaluation of CSF and plasma tau species as fluid surrogate candidates for tau PET in prodromal to moderate Alzheimer's disease

Alzheimer's &Dementia, Volume 22, Issue 7, July 2026.
Abstract INTRODUCTION Positron emission tomography (PET) is a valuable tool for assessing tau pathology in Alzheimer's disease (AD), but it is not widely accessible. Clarifying the relationship between fluid tau species and tau PET in AD may allow for the identification of fluid biomarkers that could serve as more accessible surrogates for tau PET ...
Julie Lee, Emily Olafson, Balazs Toth, Ellen Casavant, Stephen Schauer, Tobias Bittner, Matthew R. Meyer, Philip B. Verghese, Venky Venkatesh, Tim West, Joel B. Braunstein, Anne Biever, Emilia Calderon, Melanie Mandl, Anna Bayfield, Casper C. Hoogenraad, Edmond Teng, Cecilia Monteiro, Veronica G. Anania, Sandra M. Sanabria Bohórquez, Felix L. Yeh   +20 more
wiley   +1 more source

Di-Higgs signatures in neutral naturalness

Journal of High Energy Physics
The Higgs boson was the last fundamental piece of the Standard Model to be experimentally confirmed. LHC is embarked in a quest to probe the possibility that this particle provides a portal to new physics.
Mario W. Barela, Rodolfo Capdevilla
doaj   +1 more source

Lessons from the LHCb measurement of CP violation in B s → K + K −

Journal of High Energy Physics, 2022
The LHCb experiment measured the time-dependent CP asymmetries C KK and S KK in B s → K + K − decay. Combining with the corresponding CP asymmetries C ππ and S ππ in B → π + π − decay, we find that the size of U-spin breaking in this system is of order ...
Yosef Nir, Inbar Savoray, Yehonatan Viernik   +2 more
doaj   +1 more source