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Displaying publications 101 - 120 of 689 in total

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Measurement of Prompt D^{0} Meson Azimuthal Anisotropy in Pb-Pb Collisions at sqrt[s_{NN}]=5.02 TeV

Sirunyan AM, Tumasyan A, Adam W, Ambrogi F, Asilar E, Bergauer T, et al.

Phys Rev Lett, 2018 May 18;120(20):202301.
PMID: 29864330 DOI: 10.1103/PhysRevLett.120.202301

The prompt D^{0} meson azimuthal anisotropy coefficients, v_{2} and v_{3}, are measured at midrapidity (|y|<1.0) in Pb-Pb collisions at a center-of-mass energy sqrt[s_{NN}]=5.02 TeV per nucleon pair with data collected by the CMS experiment. The measurement is performed in the transverse momentum (p_{T}) range of 1 to 40 GeV/c, for central and midcentral collisions. The v_{2} coefficient is found to be positive throughout the p_{T} range studied. The first measurement of the prompt D^{0} meson v_{3} coefficient is performed, and values up to 0.07 are observed for p_{T} around 4 GeV/c. Compared to measurements of charged particles, a similar p_{T} dependence, but smaller magnitude for p_{T}<6 GeV/c, is found for prompt D^{0} meson v_{2} and v_{3} coefficients. The results are consistent with the presence of collective motion of charm quarks at low p_{T} and a path length dependence of charm quark energy loss at high p_{T}, thereby providing new constraints on the theoretical description of the interactions between charm quarks and the quark-gluon plasma.

Matched MeSH terms: United States
Observation of Medium-Induced Modifications of Jet Fragmentation in Pb-Pb Collisions at sqrt[s_{NN}]=5.02 TeV Using Isolated Photon-Tagged Jets

Sirunyan AM, Tumasyan A, Adam W, Ambrogi F, Asilar E, Bergauer T, et al.

Phys Rev Lett, 2018 Dec 14;121(24):242301.
PMID: 30608764 DOI: 10.1103/PhysRevLett.121.242301

Measurements of fragmentation functions for jets associated with an isolated photon are presented for the first time in pp and Pb-Pb collisions. The analysis uses data collected with the CMS detector at the CERN LHC at a nucleon-nucleon center-of-mass energy of 5.02 TeV. Fragmentation functions are obtained for jets with p_{T}^{jet}>30 GeV/c in events containing an isolated photon with p_{T}^{γ}>60 GeV/c, using charged tracks with transverse momentum p_{T}^{trk}>1 GeV/c in a cone around the jet axis. The association with an isolated photon constrains the initial p_{T} and azimuthal angle of the parton whose shower produced the jet. For central Pb-Pb collisions, modifications of the jet fragmentation functions are observed when compared to those measured in pp collisions, while no significant differences are found in the 50% most peripheral collisions. Jets in central Pb-Pb events show an excess (depletion) of low (high) p_{T} particles, with a transition around 3 GeV/c. This measurement shows for the first time the in-medium shower modifications of partons (quark dominated) with well-defined initial kinematics. It constitutes a new well-controlled reference for testing theoretical models of the parton passage through the quark-gluon plasma.

Matched MeSH terms: United States
Evidence for the Associated Production of a Single Top Quark and a Photon in Proton-Proton Collisions at sqrt[s]=13 TeV

Sirunyan AM, Tumasyan A, Adam W, Ambrogi F, Asilar E, Bergauer T, et al.

Phys Rev Lett, 2018 Nov 30;121(22):221802.
PMID: 30547617 DOI: 10.1103/PhysRevLett.121.221802

The first evidence of events consistent with the production of a single top quark in association with a photon is reported. The analysis is based on proton-proton collisions at sqrt[s]=13 TeV and recorded by the CMS experiment in 2016, corresponding to an integrated luminosity of 35.9 fb^{-1}. Events are selected by requiring the presence of a muon (μ), a photon (γ), an imbalance in transverse momentum from an undetected neutrino (ν), and at least two jets (j) of which exactly one is identified as associated with the hadronization of a b quark. A multivariate discriminant based on topological and kinematic event properties is employed to separate signal from background processes. An excess above the background-only hypothesis is observed, with a significance of 4.4 standard deviations. A fiducial cross section is measured for isolated photons with transverse momentum greater than 25 GeV in the central region of the detector. The measured product of the cross section and branching fraction is σ(pp→tγj)B(t→μνb)=115±17(stat)±30(syst) fb, which is consistent with the standard model prediction.

Matched MeSH terms: United States
Urban blue: A global analysis of the factors shaping people's perceptions of the marine environment and ecological engineering in harbours

Strain EMA, Alexander KA, Kienker S, Morris R, Jarvis R, Coleman R, et al.

Sci Total Environ, 2019 Mar 25;658:1293-1305.
PMID: 30677991 DOI: 10.1016/j.scitotenv.2018.12.285

Marine harbours are the focus of a diverse range of activities and subject to multiple anthropogenically induced pressures. Support for environmental management options aimed at improving degraded harbours depends on understanding the factors which influence people's perceptions of harbour environments. We used an online survey, across 12 harbours, to assess sources of variation people's perceptions of harbour health and ecological engineering. We tested the hypotheses: 1) people living near impacted harbours would consider their environment to be more unhealthy and degraded, be more concerned about the environment and supportive of and willing to pay for ecological engineering relative to those living by less impacted harbours, and 2) people with greater connectedness to the harbour would be more concerned about and have greater perceived knowledge of the environment, and be more supportive of, knowledgeable about and willing to pay for ecological engineering, than those with less connectedness. Across twelve locations, the levels of degradation and modification by artificial structures were lower and the concern and knowledge about the environment and ecological engineering were greater in the six Australasian and American than the six European and Asian harbours surveyed. We found that people's perception of harbours as healthy or degraded, but not their concern for the environment, reflected the degree to which harbours were impacted. There was a positive relationship between the percentage of shoreline modified and the extent of support for and people's willingness to pay indirect costs for ecological engineering. At the individual level, measures of connectedness to the harbour environment were good predictors of concern for and perceived knowledge about the environment but not support for and perceived knowledge about ecological engineering. To make informed decisions, it is important that people are empowered with sufficient knowledge of the environmental issues facing their harbour and ecological engineering options.

Matched MeSH terms: United States
Observation of the Production of Three Massive Gauge Bosons at sqrt[s]=13 TeV

Sirunyan AM, Tumasyan A, Adam W, Ambrogi F, Bergauer T, Dragicevic M, et al.

Phys Rev Lett, 2020 Oct 09;125(15):151802.
PMID: 33095594 DOI: 10.1103/PhysRevLett.125.151802

The first observation is reported of the combined production of three massive gauge bosons (VVV with V=W, Z) in proton-proton collisions at a center-of-mass energy of 13 TeV. The analysis is based on a data sample recorded by the CMS experiment at the CERN LHC corresponding to an integrated luminosity of 137 fb^{-1}. The searches for individual WWW, WWZ, WZZ, and ZZZ production are performed in final states with three, four, five, and six leptons (electrons or muons), or with two same-sign leptons plus one or two jets. The observed (expected) significance of the combined VVV production signal is 5.7 (5.9) standard deviations and the corresponding measured cross section relative to the standard model prediction is 1.02_{-0.23}^{+0.26}. The significances of the individual WWW and WWZ production are 3.3 and 3.4 standard deviations, respectively. Measured production cross sections for the individual triboson processes are also reported.

Matched MeSH terms: United States
Jet Shapes of Isolated Photon-Tagged Jets in Pb-Pb and pp Collisions at sqrt[s_{NN}]=5.02 TeV

Sirunyan AM, Tumasyan A, Adam W, Ambrogi F, Asilar E, Bergauer T, et al.

Phys Rev Lett, 2019 Apr 19;122(15):152001.
PMID: 31050516 DOI: 10.1103/PhysRevLett.122.152001

The modification of jet shapes in Pb-Pb collisions, relative to those in pp collisions, is studied for jets associated with an isolated photon. The data were collected with the CMS detector at the LHC at a nucleon-nucleon center-of-mass energy of 5.02 TeV. Jet shapes are constructed from charged particles with track transverse momenta (p_{T}) above 1 GeV/c in annuli around the axes of jets with p_{T}^{jet}>30 GeV/c associated with an isolated photon with p_{T}^{γ}>60 GeV/c. The jet shape distributions are consistent between peripheral Pb-Pb and pp collisions, but are modified for more central Pb-Pb collisions. In these central Pb-Pb events, a larger fraction of the jet momentum is observed at larger distances from the jet axis compared to pp, reflecting the interaction between the partonic medium created in heavy ion collisions and the traversing partons.

Matched MeSH terms: United States
Fulltext Comparative safety and effectiveness of dabigatran vs. rivaroxaban and apixaban in patients with non-valvular atrial fibrillation: a retrospective study from a large healthcare system

Villines TC, Ahmad A, Petrini M, Tang W, Evans A, Rush T, et al.

Eur Heart J Cardiovasc Pharmacother, 2019 Apr 01;5(2):80-90.
PMID: 30500885 DOI: 10.1093/ehjcvp/pvy044

AIMS: We used the US Department of Defense Military Health System database to compare the safety and effectiveness of direct oral anticoagulants (DOACs) in patients with non-valvular atrial fibrillation (NVAF) initiating dabigatran vs. rivaroxaban or apixaban.
METHODS AND RESULTS: Two cohorts of adults with NVAF, newly initiated on standard-dose DOAC, were identified based on clinical approval dates: July 2011-June 2016 for dabigatran (150 mg b.i.d.) or rivaroxaban (20 mg QD) and January 2013-June 2016 for dabigatran (150 mg b.i.d.) or apixaban (5 mg b.i.d.). Propensity score matching (1:1) identified two well-balanced cohorts (dabigatran vs. rivaroxaban n = 12 763 per treatment group; dabigatran vs. apixaban n = 4802 per treatment group). In both cohorts, baseline characteristics and follow-up duration were similar between treatment groups. Patients newly initiating dabigatran had significantly lower risk of major bleeding vs. rivaroxaban [2.08% vs. 2.53%; hazard ratio (HR) 0.82, 95% confidence interval (CI) 0.70-0.97; P = 0.018], while stroke risk was similar (0.60% vs. 0.78%; HR 0.77, 95% CI 0.57-1.04; P = 0.084). The dabigatran vs. apixaban cohort analysis found no differences in risk of major bleeding (1.60% vs. 1.21%; HR 1.37, 95% CI 0.97-1.94; P = 0.070) or stroke (0.44% vs. 0.35%; HR 1.26, 95% CI 0.66-2.39; P = 0.489).
CONCLUSION: Among NVAF patients newly initiated on standard-dose DOAC therapy in this study, dabigatran was associated with significantly lower major bleeding risk vs. rivaroxaban, and no significant difference in stroke risk. For dabigatran vs. apixaban, the reduced sample size limited the ability to draw definitive conclusions.
Study site: Department of Defense (DoD) Military Health System, United States

Matched MeSH terms: United States
Search for Narrow Hγ Resonances in Proton-Proton Collisions at sqrt[s]=13 TeV

Sirunyan AM, Tumasyan A, Adam W, Ambrogi F, Asilar E, Bergauer T, et al.

Phys Rev Lett, 2019 Mar 01;122(8):081804.
PMID: 30932612 DOI: 10.1103/PhysRevLett.122.081804

A search for heavy, narrow resonances decaying to a Higgs boson and a photon (Hγ) has been performed in proton-proton collision data at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb^{-1} collected with the CMS detector at the LHC in 2016. Events containing a photon and a Lorentz-boosted hadronically decaying Higgs boson reconstructed as a single, large-radius jet are considered, and the γ+jet invariant mass spectrum is analyzed for the presence of narrow resonances. To increase the sensitivity of the search, events are categorized depending on whether or not the large-radius jet can be identified as a result of the merging of two jets originating from b quarks. Results in both categories are found to agree with the predictions of the standard model. Upper limits on the production rate of Hγ resonances are set as a function of their mass in the range of 720-3250 GeV, representing the most stringent constraints to date.

Matched MeSH terms: United States
Observation of Two Excited B_{c}^{+} States and Measurement of the B_{c}^{+}(2S) Mass in pp Collisions at sqrt[s]=13 TeV

Sirunyan AM, Tumasyan A, Adam W, Ambrogi F, Bergauer T, Brandstetter J, et al.

Phys Rev Lett, 2019 Apr 05;122(13):132001.
PMID: 31012626 DOI: 10.1103/PhysRevLett.122.132001

Signals consistent with the B_{c}^{+}(2S) and B_{c}^{*+}(2S) states are observed in proton-proton collisions at sqrt[s]=13 TeV, in an event sample corresponding to an integrated luminosity of 143 fb^{-1}, collected by the CMS experiment during the 2015-2018 LHC running periods. These excited b[over ¯]c states are observed in the B_{c}^{+}π^{+}π^{-} invariant mass spectrum, with the ground state B_{c}^{+} reconstructed through its decay to J/ψπ^{+}. The two states are reconstructed as two well-resolved peaks, separated in mass by 29.1±1.5(stat)±0.7(syst) MeV. The observation of two peaks, rather than one, is established with a significance exceeding five standard deviations. The mass of the B_{c}^{+}(2S) meson is measured to be 6871.0±1.2(stat)±0.8(syst)±0.8(B_{c}^{+}) MeV, where the last term corresponds to the uncertainty in the world-average B_{c}^{+} mass.

Matched MeSH terms: United States
Personality traits and learning

Kohli S, Bhatia S

Br Dent J, 2021 02;230(4):186.
PMID: 33637900 DOI: 10.1038/s41415-021-2752-2
Matched MeSH terms: United States
Quality and Readability of Web-based Arabic Health Information on Denture Hygiene: An Infodemiology Study

Alhajj MN, Mashyakhy M, Ariffin Z, Ab-Ghani Z, Johari Y, Salim NS

J Contemp Dent Pract, 2020 Sep 01;21(9):956-960.
PMID: 33568578

AIM: This study aimed to assess the quality and readability of the available health information on the net regarding denture hygiene.
MATERIALS AND METHODS: Three search engines (Google, Yahoo!, and Bing) were searched. The first 20 consecutive websites from each engine were obtained and checked for eligibility. For the quality of the websites, the Health on the Net Foundation Code of Conduct (HONcode), the DISCERN tool, the Journal of the American Medical Association (JAMA) Benchmarks, and Google PageRank were used for the assessment of the included websites. For readability, an online web tool was used, including well-known analyzing indices [Flesch Kincaid grade level (FKGL), Simple Measure of Gobbledygook (SMOG), and Flesch Reading Ease (FRE)]. The acceptable readability level was set to be ≥80.0 for the FRE and <7 for the FKGL and SMOG. The data were presented in frequencies and percentages.
RESULTS: Out of the 60 screened websites, 14 websites were eligible for analysis. There was only one (7.1%) website that had the HONcode seal. The mean score of all websites based on the DISCERN tool was 29.6 ± 12.1, with no website achieved the high score (≥65). Only one (7.1%) website scored >5 based on Google PageRank. Regarding JAMA benchmarks, all websites achieved a mean score of 2.57 ± 1.1. The mean grade level based on the FKGL was 8.4 ± 6.3. All websites had a score of <7 according to the SMOG index. The mean score of the readability ease index was 90.5 ± 16.4.
CONCLUSION: Most of the dental health information on denture hygiene available on the Arabic websites did not have the required level of quality, regardless of being readable and comprehensible by most of the general people.
CLINICAL SIGNIFICANCE: Directing the patients to the appropriate websites related to their cases is the responsibility of the dentists.

Matched MeSH terms: United States
Fulltext Peer trainers compared with basic life support trainers in delivering effective cardiopulmonary resuscitation training to secondary school students

Sabihah, A., Shamsuriani, M.J., Mohd Hisham, M.I., Afliza, A.B., Nidzwani, M.M., Tan, T.L., et al.

Medicine & Health, 2020;15(1):88-95.
MyJurnal

Pendidikan kemahiran resusitasi kardiopulmonari (CPR) kepada orang awam sangat penting dalam merendahkan kadar kematian serangan jantung. American Heart Association mencadangkan kemahiran tersebut harus dimasukkan ke dalam kurikulum sekolah. Pelatih rakan sebaya adalah kaedah yang berkos rendah dan berkesan dalam mencapai objektif ini. Objektif kajian terkawal 3 bulan ini adalah untuk membandingkan keberkesanan pengajaran kompresi CPR antara rakan sebaya dan jurulatih Basic Life Support (BLS) kepada pelajar sekolah menengah. Peningkatan pengetahuan dan kemahiran psikomotor pemampatan CPR adalah hasil utama yang dinilai. Dua belas pelatih rakan sebaya berusia 16 tahun dan dua belas pelatih BLS telah direkrut dalam kajian ini. Kompresi CPR diajarkan kepada 36 pelajar sekolah menengah secara rawak oleh pelatih rakan sebaya (Kumpulan P) atau pelatih BLS (Kumpulan B). Pra-ujian, pasca ujian serta ujian pengekalan 3 bulan mengenai pengetahuan dan kemahiran psikomotor telah dijalankan. Tidak terdapat perbezaan yang signifikan secara statistik dalam skor min pengetahuan dan psikomotor pada pra-ujian, pasca ujian serta ujian pengekalan 3 bulan antara Kumpulan P dan Kumpulan B. Terdapat peningkatan skor pengetahuan yang signifikan antara pra-ujian dan pasca ujian dalam Kumpulan P (perbezaan min 5.8+2.7, p

Matched MeSH terms: United States
Fulltext Towards improved fat intake and nutrition for Malaysians

Malays J Nutr, 1995;1(1):-.
MyJurnal

An examination of the fat composition of the diet of a Malaysian urban hostel population obtained by chemical analysis of representative meals prepared by a 7-day rotation menu, revealed both nutritional attributes and limitations when compared against the dietary messages contained in the American Heart Association (AHA) and World Health Organisation (WHO) models. The Malaysian diet supplies 26% kcal i.e. 66 g total fat (51 g vegetable fats, 15 g animal fats) and contains

Matched MeSH terms: United States
Fulltext Relative Modification of Prompt ψ(2S) and J/ψ Yields from pp to PbPb Collisions at sqrt[s_{NN}]=5.02 TeV

Sirunyan AM, Tumasyan A, Adam W, Asilar E, Bergauer T, Brandstetter J, et al.

Phys Rev Lett, 2017 Apr 21;118(16):162301.
PMID: 28474955 DOI: 10.1103/PhysRevLett.118.162301

The relative modification of the prompt ψ(2S) and J/ψ yields from pp to PbPb collisions, at the center-of-mass energy of 5.02 TeV per nucleon pair, is presented. The analysis is based on pp and PbPb data samples collected by the CMS experiment at the LHC in 2015, corresponding to integrated luminosities of 28.0 pb^{-1} and 464 μb^{-1}, respectively. The double ratio of measured yields of prompt charmonia reconstructed through their decays into muon pairs, (N_{ψ(2S)}/N_{J/ψ})_{PbPb}/(N_{ψ(2S)}/N_{J/ψ})_{pp}, is determined as a function of PbPb collision centrality and charmonium transverse momentum p_{T}, in two kinematic intervals: |y|<1.6 covering 6.5

Matched MeSH terms: United States
Fulltext Observation of Charge-Dependent Azimuthal Correlations in p-Pb Collisions and Its Implication for the Search for the Chiral Magnetic Effect

Khachatryan V, Sirunyan AM, Tumasyan A, Adam W, Asilar E, Bergauer T, et al.

Phys Rev Lett, 2017 Mar 24;118(12):122301.
PMID: 28388204 DOI: 10.1103/PhysRevLett.118.122301

Charge-dependent azimuthal particle correlations with respect to the second-order event plane in p-Pb and PbPb collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV have been studied with the CMS experiment at the LHC. The measurement is performed with a three-particle correlation technique, using two particles with the same or opposite charge within the pseudorapidity range |η|<2.4, and a third particle measured in the hadron forward calorimeters (4.4

Matched MeSH terms: United States
A Churchill Fellow sees for herself

Brann J

Aust Nurses J, 1976 Aug;6(2):31-3.
PMID: 1051334
Matched MeSH terms: United States
Fulltext Data normatif timpanometri di kalangan kanak-kanak Melayu prasekolah

Noor Alaudin Abdul Wahab, Norashikin Chahed

Jurnal Sains Kesihatan Malaysia, 2010;8(1):13-18.
MyJurnal

Kajian ini bertujuan untuk mendapatkan data normatif timpanometri di kalangan kanak-kanak Melayu prasekolah dan membandingkannya menurut jantina. Ini kerana faktor bukan patologi seperti umur, jantina dan bangsa mempengaruhi data normatif timpanometri. Sehubungan itu, garis panduan saringan telinga tengah oleh American Speech and Hearing Association (ASHA) yang menggunakan data normatif timpanometri kanak-kanak Kaukasian mungkin tidak sesuai untuk populasi kanak-kanak Melayu. Parameter timpanometri yang diukur ialah puncak statik admitan akustik dikompensasi (puncak Ytm), isipadu salur telinga luar (Vea) dan kelebaran timpanogram (TW). Seramai 161 orang kanak-kanak Melayu (80 orang kanak-kanak lelaki dan 81 orang kanak-kanak perempuan) berumur antara 4 hingga 6 tahun terlibat di dalam kajian ini. Bagaimanapun, hanya seramai 45 orang kanak-kanak lelaki dan 46 orang kanak-kanak perempuan (163 dari keseluruhan 182 telinga) memenuhi kriteria inklusi iaitu lulus pemeriksaan otoskopi dan saringan pendengaran serta menunjukkan refleks akustik ipsilateral pada 1000 Hz. Ujian ANOVA Campuran dua-hala untuk membandingkan min parameter timpanometri kanak-kanak lelaki dan perempuan menunjukkan tiada perbezaan yang signifikan; min puncak Ytm (p > 0.05), min Vea (p > 0.05), dan min TW (p > 0.05). Oleh itu, data kedua-dua kumpulan ini digabungkan. Secara keseluruhan, nilai min puncak Ytm ialah 0.55 ± 0.28mmhos, min Vea ialah 0.90 ± 0.39 cm3, dan min TW ialah 104.68 ± 32.08 daPa. Julat normal persentil ke-90 bagi puncak Ytm ialah antara 0.27 hingga 1.18 mmhos, Vea antara 0.45 hingga 1.65 cm3 dan TW antara 59.60 hingga 149.80 daPa. Hasil kajian mencadangkan data normatif timpanometri ini sesuai digunakan ke atas kanak-kanak Melayu prasekolah namun ianya tidak perlu dibezakan mengikut jantina. Sekiranya setiap satu nilai TW > 200 daPa dan Vea > 1.0 cm3 oleh ASHA diaplikasi ke atas kanak-kanak Melayu prasekolah, maka masing-masing akan menyebabkan kadar rujukan yang rendah dan kadar rujukan yang berlebihan.

Matched MeSH terms: United States
Fulltext Lower segment caesareans section: evidence-based practice

Mohd Rushdan, M.N.

Journal of Surgical Academia, 2015;5(1):1-9.
MyJurnal

Caesarean section has become the most common major surgical procedure which is performed worldwide. Caesarean section is considered as a lifesaving procedure for both mother and baby. It is estimated that 18.5 million caesarean sections are performed yearly, worldwide. In the United States, more than one million caesarean sections are being performed, annually. Overall rates of caesarean section have increased in the last 30 years without significant improvement in perinatal or maternal outcomes.

Matched MeSH terms: United States
Fulltext Geospatial Water Productivity Index (WPI) for rice

Md Rowshon Kamal, Mohd Amin Mohd Soom, Abdul Rashid Mohamed Shariff

Pertanika Journal of Science & Technology, 2012;20(2):381-399.
MyJurnal

A GIS-based user-interface programme was developed to compute the geospatial Water ProductivityIndex (WPI) of a river-fed rice irrigation scheme in Northwest Selangor, Malaysia. The spatial analysisincludes irrigation blocks with sizes ranging from 20 to 300 ha. The amount of daily water use for eachirrigation block was determined using irrigation delivery model and stored in the database for both mainseason (August to December) and off season (February to May). After cut-off of the irrigation supply,a sub-module was used to compute the total water use including rainfall for each irrigation block. Therice yield data for both seasons were obtained from DOA (Department of Agriculture, Malaysia) of thescheme. Then, the Water Productivity Index (WPI) was computed for each irrigation block and spatialthematic map was also generated. ArcObjects and Visual Basic Application (VBA) programminglanguages were used to structure user-interface in the ArcGIS software. The WPI, expressed in termsof crop yield per unit amount of water used (irrigation and effective rainfall), ranged from 0.02 to 0.57kg/m3 in the main season and 0.02 to 0.40 in off season among irrigation blocks, respectively. Thedevelopment of the overall system and the procedure are illustrated using the data obtained from thestudy area. The approach could be used to depict the gaps between the existing and appropriate watermanagement practices. Suitable interventions could be made to fill the gaps and enhance water useefficiency at the field level and also help in saving irrigation water through remedial measures in theseason. The approach could be useful for irrigation managers to rectify and enhance decision-makingin both the management and operation of the next irrigation season.

Matched MeSH terms: United States
Observation of tt[over ¯]H Production

Sirunyan AM, Tumasyan A, Adam W, Ambrogi F, Asilar E, Bergauer T, et al.

Phys Rev Lett, 2018 Jun 08;120(23):231801.
PMID: 29932697 DOI: 10.1103/PhysRevLett.120.231801

The observation of Higgs boson production in association with a top quark-antiquark pair is reported, based on a combined analysis of proton-proton collision data at center-of-mass energies of sqrt[s]=7, 8, and 13 TeV, corresponding to integrated luminosities of up to 5.1, 19.7, and 35.9 fb^{-1}, respectively. The data were collected with the CMS detector at the CERN LHC. The results of statistically independent searches for Higgs bosons produced in conjunction with a top quark-antiquark pair and decaying to pairs of W bosons, Z bosons, photons, τ leptons, or bottom quark jets are combined to maximize sensitivity. An excess of events is observed, with a significance of 5.2 standard deviations, over the expectation from the background-only hypothesis. The corresponding expected significance from the standard model for a Higgs boson mass of 125.09 GeV is 4.2 standard deviations. The combined best fit signal strength normalized to the standard model prediction is 1.26_{-0.26}^{+0.31}.

Matched MeSH terms: United States

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