Academic literature on the topic 'Astrophysical Interest -Weakly Bound Molecules'

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Journal articles on the topic "Astrophysical Interest -Weakly Bound Molecules"

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Congiu, Emanuele, Marco Minissale, Saoud Baouche, et al. "Efficient diffusive mechanisms of O atoms at very low temperatures on surfaces of astrophysical interest." Faraday Discuss. 168 (2014): 151–66. http://dx.doi.org/10.1039/c4fd00002a.

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At the low temperatures of interstellar dust grains, it is well established that surface chemistry proceeds via diffusive mechanisms of H atoms weakly bound (physisorbed) to the surface. Until recently, however, it was unknown whether atoms heavier than hydrogen could diffuse rapidly enough on interstellar grains to react with other accreted species. In addition, models still require simple reduction as well as oxidation reactions to occur on grains to explain the abundances of various molecules. In this paper we investigate O-atom diffusion and reactivity on a variety of astrophysically relev
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Piepenbrink, Kurt H., Oleg Y. Borbulevych, Ruth F. Sommese, et al. "Fluorine substitutions in an antigenic peptide selectively modulate T-cell receptor binding in a minimally perturbing manner." Biochemical Journal 423, no. 3 (2009): 353–61. http://dx.doi.org/10.1042/bj20090732.

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TCR (T-cell receptor) recognition of antigenic peptides bound and presented by MHC (major histocompatibility complex) molecules forms the basis of the cellular immune response to pathogens and cancer. TCRs bind peptide–MHC complexes weakly and with fast kinetics, features which have hindered detailed biophysical studies of these interactions. Modified peptides resulting in enhanced TCR binding could help overcome these challenges. Furthermore, there is considerable interest in using modified peptides with enhanced TCR binding as the basis for clinical vaccines. In the present study, we examine
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Brosseau, Carole, Christelle Dousset, Cyrille Touzeau, et al. "Vitamin D3 and Lenalidomide Synergize To Induce Apoptosis In Mantle Cell Lymphoma Via Demethylation Of BIK." Blood 122, no. 21 (2013): 1830. http://dx.doi.org/10.1182/blood.v122.21.1830.1830.

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Abstract Among new treatment options for mantle cell lymphoma (MCL), the targeted drug lenalidomide appears as one of the most efficient molecules. Lenalidomide has multiple modes of action targeting the tumor cell and its environment including the immune system. It is widely reported that cancer patients are deficient in vitamin D3 (1,25-dihydroxyvitamin D3, VD3) and recent studies have shown in non Hodgkin lymphomas (NHL) that VD3 levels have a prognostic value on survival (Drake, J Clin Oncol. 2010;28:4191). While the relations between VD3 and cancer incidence remain unresolved, it has been
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Cunningham, Tyler A., Derek Essegian, Stephan Schürer, and Jonathan H. Schatz. "Identification of Tractable Drug-like eIF4Al Inhibitors with Potent Anti-Tumor Activity." Blood 134, Supplement_1 (2019): 5760. http://dx.doi.org/10.1182/blood-2019-130494.

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Clinical efficacy of targeted signaling inhibitors for hematologic malignancies is limited bynoutgrowth of subpopulations with alternative pathways independent of the drug target. The eIF4F complex responsible for translation initiation is a convergence point for cancer-promoting signaling pathways and its inhibition leads to decreased expression of key oncoproteins and apoptosis. Lymphomas and leukemias show particular dependence on constitutive eIF4F activation. Indeed, natural compounds targeting the eIF4F enzymatic component, eIF4A1, demonstrate activities in vitro and in vivo against lymp
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Loiseau, Ludovic, Yahya Zegouagh, Gérard Bardoux, et al. "Study of atrazine fate in silty loamy soils of the Paris Basin via a combination of isotopic and pyrolytic methods." Bulletin de la Société Géologique de France 173, no. 3 (2002): 271–79. http://dx.doi.org/10.2113/173.3.271.

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Abstract Introduction The fate of organic micro-pollutants in soil largely depends on their interactions with soil organic matter (SOM). Indeed, the intensity and nature of such interactions are major factors in the control of micro-pollutant bioavailability, and hence degradation and micro-pollutant mobility in the environment [Khan and Hamilton, 1980 ; Calderbank, 1989 ; Dec et al., 1990, 1997 ; Barriuso and Koshinen, 1996]. Residual micro-pollutants, i.e. the remaining micro-pollutants and their various transformation products (metabolites), occur in soil both in the water phase and associa
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Borkowski, Mateusz, Alexei A. Buchachenko, Roman Ciuryło, et al. "Weakly bound molecules as sensors of new gravitylike forces." Scientific Reports 9, no. 1 (2019). http://dx.doi.org/10.1038/s41598-019-51346-y.

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Abstract Several extensions to the Standard Model of particle physics, including light dark matter candidates and unification theories predict deviations from Newton’s law of gravitation. For macroscopic distances, the inverse-square law of gravitation is well confirmed by astrophysical observations and laboratory experiments. At micrometer and shorter length scales, however, even the state-of-the-art constraints on deviations from gravitational interaction, whether provided by neutron scattering or precise measurements of forces between macroscopic bodies, are currently many orders of magnitu
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Dunning, F. Barry, Soumya K. Kanungo, and Shuhei Yoshida. "Ultralong-range Rydberg molecules." Journal of Physics B: Atomic, Molecular and Optical Physics, August 28, 2024. http://dx.doi.org/10.1088/1361-6455/ad7459.

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Abstract Ultralong-range Rydberg molecules (ULRRMs) comprise a Rydberg
atom in whose electron cloud are embedded one (or more) ground-state atoms that
are weakly-bound through their scattering of the Rydberg electron. The existence
of such novel molecular species was first predicted theoretically in 2000 but they
were not observed in the laboratory until 2009. Since that time, interest in
their chemical properties, physical characteristics, and applications has increased
dramatically. We discuss here recent advances in the study of ULRRMs. These&
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Spilsbury, M. J., A. Feito, A. Delgado, M. J. Capitán, J. Álvarez, and J. J. de Miguel. "Enantiosensitive growth dynamics of chiral molecules on ferromagnetic substrates and the origin of the CISS effect." Journal of Chemical Physics 159, no. 11 (2023). http://dx.doi.org/10.1063/5.0160011.

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The recent demonstration of the existence of an intimate relationship between the chiral structure of some materials and the spin polarization of electrons transmitted through them, what has been called the chirality-induced spin selectivity (CISS) effect, is sparking interest in many related phenomena. One of the most notorious is the possibility of using magnetic materials to apply enantioselective interactions on chiral molecules and chemical reactions involving them. In this work, x-ray photoelectron spectroscopy has been used to characterize the adsorption and growth kinetics of enantiopu
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Rozbeh, Rokhsareh, and Karl Forchhammer. "Split NanoLuc technology allows quantitation of interactions between PII protein and its receptors with unprecedented sensitivity and reveals transient interactions." Scientific Reports 11, no. 1 (2021). http://dx.doi.org/10.1038/s41598-021-91856-2.

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AbstractPII proteins constitute a widespread signal transduction superfamily in the prokaryotic world. The canonical PII signal proteins sense metabolic state of the cells by binding the metabolite molecules ATP, ADP and 2-oxoglutarate. Depending on bound effector molecule, PII proteins interact with and modulate the activity of multiple target proteins. To investigate the complexity of interactions of PII with target proteins, analytical methods that do not disrupt the native cellular context are required. To this purpose, split luciferase proteins have been used to develop a novel complement
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Nicholas, Ben, and Paul Skipp. "What do cancer-specific CD8+ T cells see? The contribution of immunopeptidomics." Essays in Biochemistry, July 28, 2023. http://dx.doi.org/10.1042/ebc20220246.

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Abstract Immunopeptidomics is the survey of all peptides displayed on a cell or tissue when bound to human leukocyte antigen (HLA) molecules using tandem mass spectrometry. When attempting to determine the targets of tumour-specific CD8+ T cells, a survey of the potential ligands in tumour tissues is invaluable, and, in comparison with in-silico predictions, provides greater certainty of the existence of individual epitopes, as immunopeptidomics-confirmed CD8+ T-cell epitopes are known to be immunogenic, and direct observation should avoid the risk of autoreactivity which could arise following
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Dissertations / Theses on the topic "Astrophysical Interest -Weakly Bound Molecules"

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Pakhira, Srimanta. "Theoretical Study of Structure, Interaction and Dissociation of Van Der Waals Complexes." Thesis, 2019. http://hdl.handle.net/10821/8297.

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The present dissertation entitled “Theoretical study of structure, interaction and dissociation of van der Waals complexes” is submitted to fulfill the requirements for the degree of Doctor of Philosophy (Science) of Jadavpur University. The study has been done for the investigation of spectroscopy, molecular properties, interaction, stability, potential energy surface, and dissociation of weakly bound molecules and complexes having astrophysical, atmospherical and biological interest using high-level theoretical methods. All the studies have been done under the supervision of Professor Abhiji
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Conference papers on the topic "Astrophysical Interest -Weakly Bound Molecules"

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Surin, Leonid. "Jet spectroscopy of weakly bound complexes of astrophysical interest: NH3–Ne and NH3–H2." In Fourth International Conference on Terahertz and Microwave Radiation: Generation, Detection, and Applications, edited by Oleg A. Romanovskii and Yurii V. Kistenev. SPIE, 2020. http://dx.doi.org/10.1117/12.2576580.

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Xu, Yuanjian, Ali Shakouri, and Amnon Yariv. "Quantum Interference Effect and Electric Field Domains in Multiple Quantum Well Structures." In Semiconductor Lasers: Advanced Devices and Applications. Optica Publishing Group, 1995. http://dx.doi.org/10.1364/slada.1995.tue.16.

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There has been great interest in studying optical and transport properties of multiple quantum well (MQW) structures. In these “artificial molecules”, energy quantization and the wave nature of the carriers have been used to design new devices, e.g., intersubband lasers. The understanding of carrier transport in MQWs is important for the design of lasers with high modulation speed. In this talk, we report on a new observation of a quantum interference effect in the photocurrent spectrum of weakly coupled bound-to-continuum MQWs. Using this effect, we analyze the electric field domain (EFD) for
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