Universidad Andrés Bello

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Universidad Andrés Bello
Short name
UNAB
Country, city
Chile, Santiago
Publications
8 203
Citations
152 840
h-index
126
Top-3 journals
Top-3 organizations
University of São Paulo
University of São Paulo (380 publications)
University of Cambridge
University of Cambridge (352 publications)
University of Valencia
University of Valencia (330 publications)
Top-3 foreign organizations
University of São Paulo
University of São Paulo (380 publications)
University of Cambridge
University of Cambridge (352 publications)
University of Valencia
University of Valencia (330 publications)

Most cited in 5 years

Wilkinson J.L., Boxall A.B., Kolpin D.W., Leung K.M., Lai R.W., Galbán-Malagón C., Adell A.D., Mondon J., Metian M., Marchant R.A., Bouzas-Monroy A., Cuni-Sanchez A., Coors A., Carriquiriborde P., Rojo M., et. al.
2022-02-14 citations by CoLab: 814 Abstract  
Significance Despite growing evidence of the deleterious effects on ecological and human health, little is known regarding the global occurrence of pharmaceuticals in rivers. Studies assessing their occurrence are available for 75 of 196 countries, with most research conducted in North America and Western Europe. This leaves large geographical regions relatively unstudied. Here, we present the findings of a global reconnaissance of pharmaceutical pollution in rivers. The study monitored 1,052 sampling sites along 258 rivers in 104 countries of all continents, thus representing the pharmaceutical fingerprint of 471.4 million people. We show that the presence of these contaminants in surface water poses a threat to environmental and/or human health in more than a quarter of the studied locations globally.
Agarwal A., Rochwerg B., Lamontagne F., Siemieniuk R.A., Agoritsas T., Askie L., Lytvyn L., Leo Y., Macdonald H., Zeng L., Amin W., da Silva A.R., Aryal D., Barragan F.A., Bausch F.J., et. al.
BMJ scimago Q1 wos Q1
2020-09-04 citations by CoLab: 589 Abstract  
Abstract Updates This is the twelfth version (eleventh update) of the living guideline, replacing earlier versions (available as data supplements). New recommendations will be published as updates to this guideline. Clinical question What is the role of drugs in the treatment of patients with covid-19? Context The evidence base for therapeutics for covid-19 is evolving with numerous randomised controlled trials (RCTs) recently completed and under way. The emerging SARS-CoV-2 variants (such as omicron) and subvariants are also changing the role of therapeutics. This update provides updated recommendations for remdesivir, addresses the use of combination therapy with corticosteroids, interleukin-6 (IL-6) receptor blockers, and janus kinase (JAK) inhibitors in patients with severe or critical covid-19, and modifies previous recommendations for the neutralising monoclonal antibodies sotrovimab and casirivimab-imdevimab in patients with non-severe covid-19. New or updated recommendations • Remdesivir: a conditional recommendation for its use in patients with severe covid-19; and a conditional recommendation against its use in patients with critical covid-19. • Concomitant use of IL-6 receptor blockers (tocilizumab or sarilumab) and the JAK inhibitor baricitinib: these drugs may now be combined, in addition to corticosteroids, in patients with severe or critical covid-19. • Sotrovimab and casirivimab-imdevimab: strong recommendations against their use in patients with covid-19, replacing the previous conditional recommendations for their use. Understanding the new recommendations When moving from new evidence to updated recommendations, the Guideline Development Group (GDG) considered a combination of evidence assessing relative benefits and harms, values and preferences, and feasibility issues. For remdesivir, new trial data were added to a previous subgroup analysis and provided sufficiently trustworthy evidence to demonstrate benefits in patients with severe covid-19, but not critical covid-19. The GDG considered benefits of remdesivir to be modest and of moderate certainty for key outcomes such as mortality and mechanical ventilation, resulting in a conditional recommendation. For baricitinib, the GDG considered clinical trial evidence (RECOVERY) demonstrating reduced risk of death in patients already receiving corticosteroids and IL-6 receptor blockers. The GDG acknowledged that the clinical trials were not representative of the world population and that the risk-benefit balance may be less advantageous, particularly in patients who are immunosuppressed at higher risk of opportunistic infections (such as serious fungal, viral, or bacteria), those already deteriorating where less aggressive or stepwise addition of immunosuppressive medications may be preferred, and in areas where certain pathogens such as HIV or tuberculosis, are of concern. The panel anticipated that there would be situations where clinicians may opt for less aggressive immunosuppressive therapy or to combine medications in a stepwise fashion in patients who are deteriorating. The decision to combine the medications will depend on their availability, and the treating clinician's perception of the risk-benefit balance associated with combination immunosuppressive therapy, particularly in patient populations at risk of opportunistic infections who may have been under-represented in clinical trials. When making a strong recommendation against the use of monoclonal antibodies for patients with covid-19, the GDG considered in vitro neutralisation data demonstrating that sotrovimab and casirivimab-imdevimab evaluated in clinical trials have meaningfully reduced neutralisation activity of the currently circulating variants of SARS-CoV-2 and their subvariants. There was consensus among the panel that the absence of in vitro neutralisation activity strongly suggests absence of clinical effectiveness of these monoclonal antibodies. However, there was also consensus regarding the need for clinical trial evidence in order to confirm clinical efficacy of new monoclonal antibodies that reliably neutralise the circulating strains in vitro. Whether emerging new variants and subvariants might be susceptible to sotrovimab, casirivimab-imdevimab, or other anti-SARS-CoV-2 monoclonal antibodies cannot be predicted. Prior recommendations • Recommended for patients with severe or critical covid-19—strong recommendations for systemic corticosteroids; IL-6 receptor blockers (tocilizumab or sarilumab) in combination with corticosteroids; and baricitinib as an alternative to IL-6 receptor blockers, in combination with corticosteroids. • Recommended for patients with non-severe covid-19 at highest risk of hospitalisation—a strong recommendation for nirmatrelvir/ritonavir; conditional recommendations for molnupiravir and remdesivir. • Not recommended for patients with non-severe covid-19—a conditional recommendation against systemic corticosteroids; a strong recommendation against convalescent plasma; a recommendation against fluvoxamine, except in the context of a clinical trial; and a strong recommendation against colchicine. • Not recommended for patients with non-severe covid-19 at low risk of hospitalisation—a conditional recommendation against nirmatrelvir/ritonavir. • Not recommended for patients with severe or critical covid-19—a recommendation against convalescent plasma except in the context of a clinical trial; and a conditional recommendation against the JAK inhibitors ruxolitinib and tofacitinib. • Not recommended, regardless of covid-19 disease severity—a strong recommendations against hydroxychloroquine and against lopinavir/ritonavir; and a recommendation against ivermectin except in the context of a clinical trial. About this guideline This living guideline from the World Health Organization (WHO) incorporates new evidence to dynamically update recommendations for covid-19 therapeutics. The GDG typically evaluates a therapy when the WHO judges sufficient evidence is available to make a recommendation. While the GDG takes an individual patient perspective in making recommendations, it also considers resource implications, acceptability, feasibility, equity, and human rights. This guideline was developed according to standards and methods for trustworthy guidelines, making use of an innovative process to achieve efficiency in dynamic updating of recommendations. The methods are aligned with the WHO Handbook for Guideline Development and according to a pre-approved protocol (planning proposal) by the Guideline Review Committee (GRC). A box at the end of the article outlines key methodological aspects of the guideline process. MAGIC Evidence Ecosystem Foundation provides methodological support, including the coordination of living systematic reviews with network meta-analyses to inform the recommendations. The full version of the guideline is available online in MAGICapp and in PDF, with a summary version here in The BMJ . These formats should facilitate adaptation, which is strongly encouraged by WHO to contextualise recommendations in a healthcare system to maximise impact. Future recommendations Recommendations on anticoagulation are planned for the next update to this guideline.
Ruiz L.M., Libedinsky A., Elorza A.A.
2021-08-24 citations by CoLab: 319 PDF Abstract  
Copper is essential for life processes like energy metabolism, reactive oxygen species detoxification, iron uptake, and signaling in eukaryotic organisms. Mitochondria gather copper for the assembly of cuproenzymes such as the respiratory complex IV, cytochrome c oxidase, and the antioxidant enzyme superoxide dismutase 1. In this regard, copper plays a role in mitochondrial function and signaling involving bioenergetics, dynamics, and mitophagy, which affect cell fate by means of metabolic reprogramming. In mammals, copper homeostasis is tightly regulated by the liver. However, cellular copper levels are tissue specific. Copper imbalances, either overload or deficiency, have been associated with many diseases, including anemia, neutropenia, and thrombocytopenia, as well as tumor development and cancer aggressivity. Consistently, new pharmacological developments have been addressed to reduce or exacerbate copper levels as potential cancer therapies. This review goes over the copper source, distribution, cellular uptake, and its role in mitochondrial function, metabolic reprograming, and cancer biology, linking copper metabolism with the field of regenerative medicine and cancer.
Seron P., Oliveros M., Gutierrez-Arias R., Fuentes-Aspe R., Torres-Castro R.C., Merino-Osorio C., Nahuelhual P., Inostroza J., Jalil Y., Solano R., Marzuca-Nassr G.N., Aguilera-Eguía R., Lavados-Romo P., Soto-Rodríguez F.J., Sabelle C., et. al.
Physical Therapy scimago Q1 wos Q1
2021-02-09 citations by CoLab: 298 Abstract  
Abstract Objective The purpose of this article was to summarize the available evidence from systematic reviews on telerehabilitation in physical therapy. Methods We searched Medline/PubMed, EMBASE, and Cochrane Library databases. In addition, the records in PROSPERO and Epistemonikos and PEDro were consulted. Systematic reviews of different conditions, populations, and contexts—where the intervention to be evaluated is telerehabilitation by physical therapy—were included. The outcomes were clinical effectiveness depending on specific condition, functionality, quality of life, satisfaction, adherence, and safety. Data extraction and risk of bias assessment were carried out by a reviewer with non-independent verification by a second reviewer. The findings are reported qualitatively in the tables and figures. Results Fifty-three systematic reviews were included, of which 17 were assessed as having low risk of bias. Fifteen reviews were on cardiorespiratory rehabilitation, 14 on musculoskeletal conditions, and 13 on neurorehabilitation. The other 11 reviews addressed other types of conditions and rehabilitation. Thirteen reviews evaluated with low risk of bias showed results in favor of telerehabilitation versus in-person rehabilitation or no rehabilitation, while 17 reported no differences between the groups. Thirty-five reviews with unclear or high risk of bias showed mixed results. Conclusions Despite the contradictory results, telerehabilitation in physical therapy could be comparable with in-person rehabilitation or better than no rehabilitation for conditions such as osteoarthritis, low-back pain, hip and knee replacement, and multiple sclerosis and also in the context of cardiac and pulmonary rehabilitation. It is imperative to conduct better quality clinical trials and systematic reviews. Impact Providing the best available evidence on the effectiveness of telerehabilitation to professionals, mainly physical therapists, will impact the decision-making process and therefore yield better clinical outcomes for patients, both in these times of the COVID-19 pandemic and in the future. The identification of research gaps will also contribute to the generation of relevant and novel research questions.
Luedtke J.A., Chanson J., Neam K., Hobin L., Maciel A.O., Catenazzi A., Borzée A., Hamidy A., Aowphol A., Jean A., Sosa-Bartuano Á., Fong G. A., de Silva A., Fouquet A., Angulo A., et. al.
Nature scimago Q1 wos Q1
2023-10-04 citations by CoLab: 264 Abstract  
AbstractSystematic assessments of species extinction risk at regular intervals are necessary for informing conservation action1,2. Ongoing developments in taxonomy, threatening processes and research further underscore the need for reassessment3,4. Here we report the findings of the second Global Amphibian Assessment, evaluating 8,011 species for the International Union for Conservation of Nature Red List of Threatened Species. We find that amphibians are the most threatened vertebrate class (40.7% of species are globally threatened). The updated Red List Index shows that the status of amphibians is deteriorating globally, particularly for salamanders and in the Neotropics. Disease and habitat loss drove 91% of status deteriorations between 1980 and 2004. Ongoing and projected climate change effects are now of increasing concern, driving 39% of status deteriorations since 2004, followed by habitat loss (37%). Although signs of species recoveries incentivize immediate conservation action, scaled-up investment is urgently needed to reverse the current trends.
Hu J., Shan Y., Guerrero J.M., Ioinovici A., Chan K.W., Rodriguez J.
2021-02-01 citations by CoLab: 258 Abstract  
The development of microgrids is an advantageous option for integrating rapidly growing renewable energies. However, the stochastic nature of renewable energies and variable power demand have created many challenges like unstable voltage/frequency and complicated power management and interaction with the utility grid. Recently, predictive control with its fast transient response and flexibility to accommodate different constraints has presented huge potentials in microgrid applications. This paper provides a comprehensive review of model predictive control (MPC) in individual and interconnected microgrids, including both converter-level and grid-level control strategies applied to three layers of the hierarchical control architecture. This survey shows that MPC is at the beginning of the application in microgrids and that it emerges as a competitive alternative to conventional methods in voltage regulation, frequency control, power flow management and economic operation optimization. Also, some of the most important trends in MPC development have been highlighted and discussed as future perspectives. • A comprehensive review of model predictive control (MPC) in microgrids, including both converter-level and grid-level control strategies applied to three layers of microgrid hierarchical architecture. • Illustrating MPC is at the beginning of the application to microgrids and it emerges as a competitive alternative to conventional methods. • Some of the most important trends in MPC development have been highlighted and discussed as future perspectives.
Salem A., Van Khang H., Robbersmyr K.G., Norambuena M., Rodriguez J.
2021-03-01 citations by CoLab: 207 Abstract  
Multilevel inverters (MLIs) have gained increasing interest for advanced energy-conversion systems due to their features of high-quality produced waveforms, modularity, transformerless operation, voltage, and current scalability, and fault-tolerant operation. However, these merits usually come with the cost of a high number of components. Over the past few years, proposing new MLIs with a lower component count has been one of the most active topics in power electronics. The first aim of this article is to update and summarize the recently developed multilevel topologies with a reduced component count, based on their advantages, disadvantages, construction, and specific applications. Within the framework, both single-phase and three-phase topologies with symmetrical and asymmetrical operations are taken into consideration via a detailed comparison in terms of the used component count and type. The second objective is to propose a comparative method with novel factors to take component ratings into account. The effectiveness of the proposed method is verified by a comparative study.
Shajib A.J., Birrer S., Treu T., Agnello A., Buckley-Geer E.J., Chan J.H., Christensen L., Lemon C., Lin H., Millon M., Poh J., Rusu C.E., Sluse D., Spiniello C., Chen G.C., et. al.
2020-03-28 citations by CoLab: 161 PDF Abstract  
ABSTRACT We present a blind time-delay cosmographic analysis for the lens system DES J0408−5354. This system is extraordinary for the presence of two sets of multiple images at different redshifts, which provide the opportunity to obtain more information at the cost of increased modelling complexity with respect to previously analysed systems. We perform detailed modelling of the mass distribution for this lens system using three band Hubble Space Telescope imaging. We combine the measured time delays, line-of-sight central velocity dispersion of the deflector, and statistically constrained external convergence with our lens models to estimate two cosmological distances. We measure the ‘effective’ time-delay distance corresponding to the redshifts of the deflector and the lensed quasar $D_{\Delta t}^{\rm eff}=$$3382_{-115}^{+146}$ Mpc and the angular diameter distance to the deflector Dd = $1711_{-280}^{+376}$ Mpc, with covariance between the two distances. From these constraints on the cosmological distances, we infer the Hubble constant H0= $74.2_{-3.0}^{+2.7}$ km s−1 Mpc−1 assuming a flat ΛCDM cosmology and a uniform prior for Ωm as $\Omega _{\rm m} \sim \mathcal {U}(0.05, 0.5)$. This measurement gives the most precise constraint on H0 to date from a single lens. Our measurement is consistent with that obtained from the previous sample of six lenses analysed by the H0 Lenses in COSMOGRAIL’s Wellspring (H0LiCOW) collaboration. It is also consistent with measurements of H0 based on the local distance ladder, reinforcing the tension with the inference from early Universe probes, for example, with 2.2σ discrepancy from the cosmic microwave background measurement.
Ahrendt C., Perez-Venegas D.J., Urbina M., Gonzalez C., Echeveste P., Aldana M., Pulgar J., Galbán-Malagón C.
Marine Pollution Bulletin scimago Q1 wos Q1
2020-02-01 citations by CoLab: 158 Abstract  
We exposed juvenile intertidal fish to different amounts of Poly(styrene-co-divinylbenzene) microplastics in their diet. We fed ten individuals with pellets containing 0.01 g, another ten fish with pellets containing 0.1 g of PS, and ten fish without plastic as control. After 45 days of treatment, the whole intestine was removed, and the histological evaluation started immediately. We evaluated inflammation due to leukocyte infiltration (Lk), circulatory disorders like Hypermeia (Hyp), and regressive changes in the intestinal tissue, assessing Crypt cell loss (Ccl) and Villi cell loss (Vcl). The severity of the lesions increased according to the microplastic concentration. In the fish group feeding on microplastics, we found that leukocyte infiltration and hyperemia were more severe in the higher exposure group compared to the lower exposure; and crypt cell loss and villi cell loss increased significantly due to Poly(styrene-co-divinylbenzene) microplastic physical abrasion.
Adriaenssens E.M., Sullivan M.B., Knezevic P., van Zyl L.J., Sarkar B.L., Dutilh B.E., Alfenas-Zerbini P., Łobocka M., Tong Y., Brister J.R., Moreno Switt A.I., Klumpp J., Aziz R.K., Barylski J., Uchiyama J., et. al.
Archives of Virology scimago Q2 wos Q3
2020-03-11 citations by CoLab: 149 Abstract  
This article is a summary of the activities of the ICTV’s Bacterial and Archaeal Viruses Subcommittee for the years 2018 and 2019. Highlights include the creation of a new order, 10 families, 22 subfamilies, 424 genera and 964 species. Some of our concerns about the ICTV’s ability to adjust to and incorporate new DNA- and protein-based taxonomic tools are discussed.
from 3 chars
Publications found: 236
Gold nanostructures: synthesis, properties, and neurological applications
Zare I., Yaraki M.T., Speranza G., Najafabadi A.H., Shourangiz-Haghighi A., Nik A.B., Manshian B.B., Saraiva C., Soenen S.J., Kogan M.J., Lee J.W., Apollo N.V., Bernardino L., Araya E., Mayer D., et. al.
Q1
Royal Society of Chemistry (RSC)
Chemical Society Reviews 2022 citations by CoLab: 77  |  Abstract
Recent advances in technology are expected to increase our current understanding of neuroscience. Nanotechnology and nanomaterials can alter and control neural functionality in both in vitro and in vivo experimental setups. The intersection between neuroscience and nanoscience may generate long-term neural interfaces adapted at the molecular level. Owing to their intrinsic physicochemical characteristics, gold nanostructures (GNSs) have received much attention in neuroscience, especially for combined diagnostic and therapeutic (theragnostic) purposes. GNSs have been successfully employed to stimulate and monitor neurophysiological signals. Hence, GNSs could provide a promising solution for the regeneration and recovery of neural tissue, novel neuroprotective strategies, and integrated implantable materials. This review covers the broad range of neurological applications of GNS-based materials to improve clinical diagnosis and therapy. Sub-topics include neurotoxicity, targeted delivery of therapeutics to the central nervous system (CNS), neurochemical sensing, neuromodulation, neuroimaging, neurotherapy, tissue engineering, and neural regeneration. It focuses on core concepts of GNSs in neurology, to circumvent the limitations and significant obstacles of innovative approaches in neurobiology and neurochemistry, including theragnostics. We will discuss recent advances in the use of GNSs to overcome current bottlenecks and tackle technical and conceptual challenges.
π-Halogen Interaction on the Crystalline Packing of 1,3,5-Tris(4-bromophenyl)-1,3,5-triazine-2,4,6-trione•[solvate].
Escobar C. ., Artigas V., Bacho M., Trujillo A.
Q2
Elsevier
Journal of Molecular Structure 2022 citations by CoLab: 3  |  Abstract
• Synthesis of 1,3,5-Tris(4-bromophenyl)-1,3,5-triazin-2,4,6-trione·CHCl 3. • 3D molecular and crystal structure confirmed by single crystal X-ray diffraction and discussed. • Hirshfeld surface analyses were performed and discussed. • Halogen interaction based on the chlorine atoms of the solvent molecule. • Energy framework was carried out for better understanding of the packing and topology of the crystal structure. This paper discloses the synthesis of 1,3,5-Tris(4-bromophenyl)-1,3,5-triazin-2,4,6-trione·CHCl 3, ( Cy·CHCl 3 ). The title compound was purified by recrystallization in chloroform. Structural and crystalline analysis reveals that Cy·CHCl 3 crystallizes in the trigonal space group R3c. The high symmetry is due to the finding in the crystal of the existence of a π-halogen intermolecular interaction between the title compound and one chloroform molecule as lattice solvent, forming a honeycomb-shape pattern when the isocyanurate core centroids are joined in the packing diagram. Also, crystal structure of Cy·CHCl 3 reveals that cell packing is stabilized by hydrogen bond interactions. All interactions were verifying through Hirshfeld surface analyses.
Measurement of b-quark fragmentation properties in jets using the decay B ± → J/ψK ± in pp collisions at √s = 13 TeV with the ATLAS detector
Aad G., Abbott B., Abbott D.C., Abed Abud A., Abeling K., Abhayasinghe D.K., Abidi S.H., AbouZeid O.S., Abramowicz H., Abreu H., Abulaiti Y., Abusleme Hoffman A.C., Acharya B.S., Achkar B., Adam L., et. al.
Q1
Springer Nature
Journal of High Energy Physics 2021 citations by CoLab: 4
Open Access
Open access
PDF  |  Abstract
Abstract The fragmentation properties of jets containing b-hadrons are studied using charged B mesons in 139 fb−1 of pp collisions at $$ \sqrt{s} $$ s = 13 TeV, recorded with the ATLAS detector at the LHC during the period from 2015 to 2018. The B mesons are reconstructed using the decay of B± into J/ψK±, with the J/ψ decaying into a pair of muons. Jets are reconstructed using the anti-kt algorithm with radius parameter R = 0.4. The measurement determines the longitudinal and transverse momentum profiles of the reconstructed B hadrons with respect to the axes of the jets to which they are geometrically associated. These distributions are measured in intervals of the jet transverse momentum, ranging from 50 GeV to above 100 GeV. The results are corrected for detector effects and compared with several Monte Carlo predictions using different parton shower and hadronisation models. The results for the longitudinal and transverse profiles provide useful inputs to improve the description of heavy-flavour fragmentation in jets.
Search for chargino–neutralino pair production in final states with three leptons and missing transverse momentum in √s=13 TeV pp collisions with the ATLAS detector
Aad G., Abbott B., Abbott D.C., Abed Abud A., Abeling K., Abhayasinghe D.K., Abidi S.H., AbouZeid O.S., Abramowicz H., Abreu H., Abulaiti Y., Abusleme Hoffman A.C., Acharya B.S., Achkar B., Adam L., et. al.
Q1
Springer Nature
European Physical Journal C 2021 citations by CoLab: 49
Open Access
Open access
PDF  |  Abstract
AbstractA search for chargino–neutralino pair production in three-lepton final states with missing transverse momentum is presented. The study is based on a dataset of $$\sqrt{s} = 13$$ s = 13  TeV pp collisions recorded with the ATLAS detector at the LHC, corresponding to an integrated luminosity of 139 $$\hbox {fb}^{-1}$$ fb - 1 . No significant excess relative to the Standard Model predictions is found in data. The results are interpreted in simplified models of supersymmetry, and statistically combined with results from a previous ATLAS search for compressed spectra in two-lepton final states. Various scenarios for the production and decay of charginos ($${\tilde{\chi }}^\pm _1$$ χ ~ 1 ± ) and neutralinos ($${\tilde{\chi }}^0_2$$ χ ~ 2 0 ) are considered. For pure higgsino $${\tilde{\chi }}^\pm _1{\tilde{\chi }}^0_2$$ χ ~ 1 ± χ ~ 2 0 pair-production scenarios, exclusion limits at 95% confidence level are set on $${\tilde{\chi }}^0_2$$ χ ~ 2 0 masses up to 210 GeV. Limits are also set for pure wino $${\tilde{\chi }}^\pm _1{\tilde{\chi }}^0_2$$ χ ~ 1 ± χ ~ 2 0 pair production, on $${\tilde{\chi }}^0_2$$ χ ~ 2 0 masses up to 640 GeV for decays via on-shell W and Z bosons, up to 300 GeV for decays via off-shell W and Z bosons, and up to 190 GeV for decays via W and Standard Model Higgs bosons.
Erratum to: Measurement of hadronic event shapes in high-p T multijet final states at s = 13 TeV with the ATLAS detector (Journal of High Energy Physics, (2021), 2021, 1, (188), 10.1007/JHEP01(2021)188)
Aad G., Abbott B., Abbott D.C., Abed Abud A., Abeling K., Abhayasinghe D.K., Abidi S.H., AbouZeid O.S., Abraham N.L., Abramowicz H., Abreu H., Abulaiti Y., Acharya B.S., Achkar B., Adam L., et. al.
Q1
Springer Nature
Journal of High Energy Physics 2021 citations by CoLab: 1
Open Access
Open access
PDF
Configuration and performance of the ATLAS b-jet triggers in Run 2
Aad G., Abbott B., Abbott D.C., Abed Abud A., Abeling K., Abhayasinghe D.K., Abidi S.H., AbouZeid O.S., Abraham N.L., Abramowicz H., Abreu H., Abulaiti Y., Acharya B.S., Achkar B., Adam L., et. al.
Q1
Springer Nature
European Physical Journal C 2021 citations by CoLab: 13
Open Access
Open access
PDF  |  Abstract
AbstractSeveral improvements to the ATLAS triggers used to identify jets containing b-hadrons (b-jets) were implemented for data-taking during Run 2 of the Large Hadron Collider from 2016 to 2018. These changes include reconfiguring the b-jet trigger software to improve primary-vertex finding and allow more stable running in conditions with high pile-up, and the implementation of the functionality needed to run sophisticated taggers used by the offline reconstruction in an online environment. These improvements yielded an order of magnitude better light-flavour jet rejection for the same b-jet identification efficiency compared to the performance in Run 1 (2011–2012). The efficiency to identify b-jets in the trigger, and the conditional efficiency for b-jets that satisfy offline b-tagging requirements to pass the trigger are also measured. Correction factors are derived to calibrate the b-tagging efficiency in simulation to match that observed in data. The associated systematic uncertainties are substantially smaller than in previous measurements. In addition, b-jet triggers were operated for the first time during heavy-ion data-taking, using dedicated triggers that were developed to identify semileptonic b-hadron decays by selecting events with geometrically overlapping muons and jets.
QM/MM Study of a VIM-1 Metallo-β-Lactamase Enzyme: The Catalytic Reaction Mechanism
Medina F.E., Jaña G.A.
Q1
American Chemical Society (ACS)
ACS Catalysis 2021 citations by CoLab: 19
Measurement of the t t¯ t t¯ production cross section in pp collisions at √s = 13 TeV with the ATLAS detector
Aad G., Abbott B., Abbott D.C., Abed Abud A., Abeling K., Abhayasinghe D.K., Abidi S.H., Abramowicz H., Abreu H., Abulaiti Y., Abusleme Hoffman A.C., Acharya B.S., Achkar B., Adam L., Adam Bourdarios C., et. al.
Q1
Springer Nature
Journal of High Energy Physics 2021 citations by CoLab: 14
Open Access
Open access
PDF  |  Abstract
Abstract A measurement of four-top-quark production using proton-proton collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the Large Hadron Collider corresponding to an integrated luminosity of 139 fb−1 is presented. Events are selected if they contain a single lepton (electron or muon) or an opposite-sign lepton pair, in association with multiple jets. The events are categorised according to the number of jets and how likely these are to contain b-hadrons. A multivariate technique is then used to discriminate between signal and background events. The measured four-top-quark production cross section is found to be $$ {26}_{-15}^{+17} $$ 26 − 15 + 17 fb, with a corresponding observed (expected) significance of 1.9 (1.0) standard deviations over the background-only hypothesis. The result is combined with the previous measurement performed by the ATLAS Collaboration in the multilepton final state. The combined four-top-quark production cross section is measured to be $$ {24}_{-6}^{+7} $$ 24 − 6 + 7 fb, with a corresponding observed (expected) signal significance of 4.7 (2.6) standard deviations over the background-only predictions. It is consistent within 2.0 standard deviations with the Standard Model expectation of 12.0 ± 2.4 fb.
Search for R-parity-violating supersymmetry in a final state containing leptons and many jets with the ATLAS experiment using √s=13TeV proton–proton collision data
Aad G., Abbott B., Abbott D.C., Abud A.A., Abeling K., Abhayasinghe D.K., Abidi S.H., Abramowicz H., Abreu H., Abulaiti Y., Hoffman A.C., Acharya B.S., Achkar B., Adam L., Bourdarios C.A., et. al.
Q1
Springer Nature
European Physical Journal C 2021 citations by CoLab: 13
Open Access
Open access
PDF  |  Abstract
AbstractA search for R-parity-violating supersymmetry in final states characterized by high jet multiplicity, at least one isolated light lepton and either zero or at least three b-tagged jets is presented. The search uses $${139}\,{\text {fb}^{-1}}$$ 139 fb - 1 of $$\sqrt{s} = {13}\hbox { TeV}$$ s = 13 TeV proton–proton collision data collected by the ATLAS experiment during Run 2 of the Large Hadron Collider. The results are interpreted in the context of R-parity-violating supersymmetry models that feature gluino production, top-squark production, or electroweakino production. The dominant sources of background are estimated using a data-driven model, based on observables at medium jet multiplicity, to predict the b-tagged jet multiplicity distribution at the higher jet multiplicities used in the search. Machine-learning techniques are used to reach sensitivity to electroweakino production, extending the data-driven background estimation to the shape of the machine-learning discriminant. No significant excess over the Standard Model expectation is observed and exclusion limits at the 95% confidence level are extracted, reaching as high as 2.4 TeV in gluino mass, 1.35 TeV in top-squark mass, and 320 (365) GeV in higgsino (wino) mass.
Erratum to: Measurement of light-by-light scattering and search for axion-like particles with 2.2 nb −1 of Pb+Pb data with the ATLAS detector (Journal of High Energy Physics, (2021), 2021, 3, (243), 10.1007/JHEP03(2021)243)
Aad G., Abbott B., Abbott D.C., Abed Abud A., Abeling K., Abhayasinghe D.K., Abidi S.H., AbouZeid O.S., Abraham N.L., Abramowicz H., Abreu H., Abulaiti Y., Acharya B.S., Achkar B., Adam L., et. al.
Q1
Springer Nature
Journal of High Energy Physics 2021 citations by CoLab: 26
Open Access
Open access
PDF
Search for exotic decays of the Higgs boson into long-lived particles in pp collisions at √s = 13 TeV using displaced vertices in the ATLAS inner detector
Aad G., Abbott B., Abbott D.C., Abed Abud A., Abeling K., Abhayasinghe D.K., Abidi S.H., Abramowicz H., Abreu H., Abulaiti Y., Abusleme Hoffman A.C., Acharya B.S., Achkar B., Adam L., Adam Bourdarios C., et. al.
Q1
Springer Nature
Journal of High Energy Physics 2021 citations by CoLab: 10
Open Access
Open access
PDF  |  Abstract
Abstract A novel search for exotic decays of the Higgs boson into pairs of long-lived neutral particles, each decaying into a bottom quark pair, is performed using 139 fb−1 of $$ \sqrt{s} $$ s = 13 TeV proton-proton collision data collected with the ATLAS detector at the LHC. Events consistent with the production of a Higgs boson in association with a leptonically decaying Z boson are analysed. Long-lived particle (LLP) decays are reconstructed from inner-detector tracks as displaced vertices with high mass and track multiplicity relative to Standard Model processes. The analysis selection requires the presence of at least two displaced vertices, effectively suppressing Standard Model backgrounds. The residual background contribution is estimated using a data-driven technique. No excess over Standard Model predictions is observed, and upper limits are set on the branching ratio of the Higgs boson to LLPs. Branching ratios above 10% are excluded at 95% confidence level for LLP mean proper lifetimes cτ as small as 4 mm and as large as 100 mm. For LLP masses below 40 GeV, these results represent the most stringent constraint in this lifetime regime.
Measurement of the production cross section of pairs of isolated photons in pp collisions at 13 TeV with the ATLAS detector
Aad G., Abbott B., Abbott D.C., Abed Abud A., Abeling K., Abhayasinghe D.K., Abidi S.H., Abramowicz H., Abreu H., Abulaiti Y., Abusleme Hoffman A.C., Acharya B.S., Achkar B., Adam L., Adam Bourdarios C., et. al.
Q1
Springer Nature
Journal of High Energy Physics 2021 citations by CoLab: 10
Open Access
Open access
PDF  |  Abstract
Abstract A measurement of prompt photon-pair production in proton-proton collisions at $$ \sqrt{s} $$ s = 13 TeV is presented. The data were recorded by the ATLAS detector at the LHC with an integrated luminosity of 139 fb−1. Events with two photons in the well-instrumented region of the detector are selected. The photons are required to be isolated and have a transverse momentum of $$ {p}_{\mathrm{T}{,}_{\gamma 1(2)}} $$ p T , γ 1 2 > 40 (30) GeV for the leading (sub-leading) photon. The differential cross sections as functions of several observables for the diphoton system are measured and compared with theoretical predictions from state-of-the-art Monte Carlo and fixed-order calculations. The QCD predictions from next-to-next-to-leading-order calculations and multi-leg merged calculations are able to describe the measured integrated and differential cross sections within uncertainties, whereas lower-order calculations show significant deviations, demonstrating that higher-order perturbative QCD corrections are crucial for this process. The resummed predictions with parton showers additionally provide an excellent description of the low transverse-momentum regime of the diphoton system.
Search for dark matter produced in association with a Standard Model Higgs boson decaying into b-quarks using the full Run 2 dataset from the ATLAS detector
Aad G., Abbott B., Abbott D.C., Abed Abud A., Abeling K., Abhayasinghe D.K., Abidi S.H., AbouZeid O.S., Abramowicz H., Abreu H., Abulaiti Y., Abusleme Hoffman A.C., Acharya B.S., Achkar B., Adam L., et. al.
Q1
Springer Nature
Journal of High Energy Physics 2021 citations by CoLab: 18
Open Access
Open access
PDF  |  Abstract
Abstract The production of dark matter in association with Higgs bosons is predicted in several extensions of the Standard Model. An exploration of such scenarios is presented, considering final states with missing transverse momentum and b-tagged jets consistent with a Higgs boson. The analysis uses proton-proton collision data at a centre-of-mass energy of 13 TeV recorded by the ATLAS experiment at the LHC during Run 2, amounting to an integrated luminosity of 139 fb−1. The analysis, when compared with previous searches, benefits from a larger dataset, but also has further improvements providing sensitivity to a wider spectrum of signal scenarios. These improvements include both an optimised event selection and advances in the object identification, such as the use of the likelihood-based significance of the missing transverse momentum and variable-radius track-jets. No significant deviation from Standard Model expectations is observed. Limits are set, at 95% confidence level, in two benchmark models with two Higgs doublets extended by either a heavy vector boson Z′ or a pseudoscalar singlet a and which both provide a dark matter candidate χ. In the case of the two-Higgs-doublet model with an additional vector boson Z′, the observed limits extend up to a Z′ mass of 3 TeV for a mass of 100 GeV for the dark matter candidate. The two-Higgs-doublet model with a dark matter particle mass of 10 GeV and an additional pseudoscalar a is excluded for masses of the a up to 520 GeV and 240 GeV for tan β = 1 and tan β = 10 respectively. Limits on the visible cross-sections are set and range from to 0.05 fb to 3.26 fb, depending on the missing transverse momentum and b-quark jet multiplicity requirements.
Erratum to: Search for squarks and gluinos in final states with one isolated lepton, jets, and missing transverse momentum at √s = 13 TeV with the ATLAS detector (The European Physical Journal C, (2021), 81, 7, (600), 10.1140/epjc/s10052-021-09344-w)
Aad G., Abbott B., Abbott D.C., Abed Abud A., Abeling K., Abhayasinghe D.K., Abidi S.H., AbouZeid O.S., Abraham N.L., Abramowicz H., Abreu H., Abulaiti Y., Acharya B.S., Achkar B., Adam L., et. al.
Q1
Springer Nature
European Physical Journal C 2021 citations by CoLab: 4
Open Access
Open access
PDF  |  Abstract
A correction to this paper has been published: 10.1140/epjc/s10052-021-09344-w
Search for dark matter in events with missing transverse momentum and a Higgs boson decaying into two photons in pp collisions at √s = 13 TeV with the ATLAS detector
Aad G., Abbott B., Abbott D.C., Abed Abud A., Abeling K., Abhayasinghe D.K., Abidi S.H., AbouZeid O.S., Abraham N.L., Abramowicz H., Abreu H., Abulaiti Y., Acharya B.S., Achkar B., Adam L., et. al.
Q1
Springer Nature
Journal of High Energy Physics 2021 citations by CoLab: 18
Open Access
Open access
PDF  |  Abstract
Abstract A search for dark-matter particles in events with large missing transverse momentum and a Higgs boson candidate decaying into two photons is reported. The search uses 139 fb−1 of proton-proton collision data collected at $$ \sqrt{s} $$ s = 13 TeV with the ATLAS detector at the CERN LHC between 2015 and 2018. No significant excess of events over the Standard Model predictions is observed. The results are interpreted by extracting limits on three simplified models that include either vector or pseudoscalar mediators and predict a final state with a pair of dark-matter candidates and a Higgs boson decaying into two photons.

Since 1992

Total publications
8203
Total citations
152840
Citations per publication
18.63
Average publications per year
241.26
Average authors per publication
94.24
h-index
126
Metrics description

Top-30

Fields of science

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Astronomy and Astrophysics, 676, 8.24%
Space and Planetary Science, 665, 8.11%
Physical and Theoretical Chemistry, 646, 7.88%
General Medicine, 644, 7.85%
Molecular Biology, 417, 5.08%
General Chemistry, 406, 4.95%
Biochemistry, 366, 4.46%
Organic Chemistry, 329, 4.01%
Nuclear and High Energy Physics, 309, 3.77%
Microbiology, 307, 3.74%
Ecology, Evolution, Behavior and Systematics, 261, 3.18%
Inorganic Chemistry, 248, 3.02%
General Physics and Astronomy, 246, 3%
Multidisciplinary, 231, 2.82%
Genetics, 230, 2.8%
Aquatic Science, 227, 2.77%
Catalysis, 209, 2.55%
Computer Science Applications, 208, 2.54%
Immunology, 205, 2.5%
Materials Chemistry, 202, 2.46%
Cell Biology, 200, 2.44%
Condensed Matter Physics, 194, 2.36%
Public Health, Environmental and Occupational Health, 194, 2.36%
Electrical and Electronic Engineering, 192, 2.34%
General Materials Science, 180, 2.19%
Plant Science, 179, 2.18%
Infectious Diseases, 176, 2.15%
Physiology, 175, 2.13%
Microbiology (medical), 169, 2.06%
Health, Toxicology and Mutagenesis, 151, 1.84%
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With other countries

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USA, 1685, 20.54%
Spain, 1467, 17.88%
United Kingdom, 964, 11.75%
Germany, 864, 10.53%
Italy, 773, 9.42%
France, 750, 9.14%
Brazil, 728, 8.87%
Argentina, 630, 7.68%
Canada, 594, 7.24%
Australia, 585, 7.13%
Colombia, 580, 7.07%
China, 544, 6.63%
Sweden, 436, 5.32%
Portugal, 425, 5.18%
Switzerland, 403, 4.91%
Denmark, 394, 4.8%
Mexico, 388, 4.73%
Japan, 380, 4.63%
Netherlands, 377, 4.6%
Israel, 346, 4.22%
Poland, 342, 4.17%
South Africa, 335, 4.08%
Czech Republic, 306, 3.73%
Norway, 296, 3.61%
Austria, 293, 3.57%
Greece, 277, 3.38%
Turkey, 270, 3.29%
Romania, 257, 3.13%
Slovenia, 253, 3.08%
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  • We do not take into account publications without a DOI.
  • Statistics recalculated daily.
  • Publications published earlier than 1992 are ignored in the statistics.
  • The horizontal charts show the 30 top positions.
  • Journals quartiles values are relevant at the moment.