The Year of Polar Prediction in the Southern Hemisphere (YOPP-SH)

The Year of Polar Prediction in the Southern Hemisphere (YOPP-SH) had a Special Observing Period (SOP) that ran from November 16, 2018 to February 15, 2019, a period chosen to span the austral warm season months of greatest operational activity in the Antarctic. Some 2200 additional radiosondes were launched during the 3-month SOP, roughly doubling the routine program, and the network of drifting buoys in the Southern Ocean was enhanced. An evaluation of global model forecasts during the SOP and using its data has confirmed that extratropical Southern Hemisphere forecast skill lags behind that in the Northern Hemisphere with the contrast being greatest between the southern and northern polar regions. Reflecting the application of the SOP data, early results from observing system experiments show that the additional radiosondes

Multidifferential study of identified charged hadron distributions in ZZ-tagged jets in proton-proton collisions at s=\sqrt{s}=13 TeV

Jet fragmentation functions are measured for the first time in proton-proton collisions for charged pions, kaons, and protons within jets recoiling against a $Z$ boson. The charged-hadron distributions are studied longitudinally and transversely to the jet direction for jets with transverse momentum 20 $< p_{\textrm{T}} < 100$ GeV and in the pseudorapidity range $2.5 < \eta < 4$. The data sample was collected with the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 1.64 fb$^{-1}$. Triple differential distributions as a function of the hadron longitudinal momentum fraction, hadron transverse momentum, and jet transverse momentum are also measured for the first time. This helps constrain transverse-momentum-dependent fragmentation functions. Differences in the shapes and magnitudes of the measured distributions for the different hadron species provide insights into the hadronization process for jets predominantly initiated by light quarks.Comment: All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-013.html (LHCb public pages

Study of the B−→Λc+Λˉc−K−B^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-} decay

The decay $B^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-}$ is studied in proton-proton collisions at a center-of-mass energy of $\sqrt{s}=13$ TeV using data corresponding to an integrated luminosity of 5 $\mathrm{fb}^{-1}$ collected by the LHCb experiment. In the $\Lambda_{c}^+ K^{-}$ system, the $\Xi_{c}(2930)^{0}$ state observed at the BaBar and Belle experiments is resolved into two narrower states, $\Xi_{c}(2923)^{0}$ and $\Xi_{c}(2939)^{0}$, whose masses and widths are measured to be $$m(\Xi_{c}(2923)^{0}) = 2924.5 \pm 0.4 \pm 1.1 \,\mathrm{MeV}, \\ m(\Xi_{c}(2939)^{0}) = 2938.5 \pm 0.9 \pm 2.3 \,\mathrm{MeV}, \\ \Gamma(\Xi_{c}(2923)^{0}) = \phantom{000}4.8 \pm 0.9 \pm 1.5 \,\mathrm{MeV},\\ \Gamma(\Xi_{c}(2939)^{0}) = \phantom{00}11.0 \pm 1.9 \pm 7.5 \,\mathrm{MeV},$$ where the first uncertainties are statistical and the second systematic. The results are consistent with a previous LHCb measurement using a prompt $\Lambda_{c}^{+} K^{-}$ sample. Evidence of a new $\Xi_{c}(2880)^{0}$ state is found with a local significance of $3.8\,\sigma$, whose mass and width are measured to be $2881.8 \pm 3.1 \pm 8.5\,\mathrm{MeV}$ and $12.4 \pm 5.3 \pm 5.8 \,\mathrm{MeV}$, respectively. In addition, evidence of a new decay mode $\Xi_{c}(2790)^{0} \to \Lambda_{c}^{+} K^{-}$ is found with a significance of $3.7\,\sigma$. The relative branching fraction of $B^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-}$ with respect to the $B^{-} \to D^{+} D^{-} K^{-}$ decay is measured to be $2.36 \pm 0.11 \pm 0.22 \pm 0.25$, where the first uncertainty is statistical, the second systematic and the third originates from the branching fractions of charm hadron decays.Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-028.html (LHCb public pages

Measurement of the ratios of branching fractions R(D∗)\mathcal{R}(D^{*}) and R(D0)\mathcal{R}(D^{0})

The ratios of branching fractions $\mathcal{R}(D^{*})\equiv\mathcal{B}(\bar{B}\to D^{*}\tau^{-}\bar{\nu}_{\tau})/\mathcal{B}(\bar{B}\to D^{*}\mu^{-}\bar{\nu}_{\mu})$ and $\mathcal{R}(D^{0})\equiv\mathcal{B}(B^{-}\to D^{0}\tau^{-}\bar{\nu}_{\tau})/\mathcal{B}(B^{-}\to D^{0}\mu^{-}\bar{\nu}_{\mu})$ are measured, assuming isospin symmetry, using a sample of proton-proton collision data corresponding to 3.0 fb${ }^{-1}$ of integrated luminosity recorded by the LHCb experiment during 2011 and 2012. The tau lepton is identified in the decay mode $\tau^{-}\to\mu^{-}\nu_{\tau}\bar{\nu}_{\mu}$. The measured values are $\mathcal{R}(D^{*})=0.281\pm0.018\pm0.024$ and $\mathcal{R}(D^{0})=0.441\pm0.060\pm0.066$, where the first uncertainty is statistical and the second is systematic. The correlation between these measurements is $\rho=-0.43$. Results are consistent with the current average of these quantities and are at a combined 1.9 standard deviations from the predictions based on lepton flavor universality in the Standard Model.Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-039.html (LHCb public pages

27.3 Patients With ASD Treated With ECT

http://deepblue.lib.umich.edu/bitstream/2027.42/191433/2/AACAP2023_Ghaziuddin et al_ASD_ECT.docxPublished versio

Patients with Autism Treated with Electroconvulsive Therapy

Objective: There is a growing recognition that a select number of patients diagnosed with developmental delays may benefit from electroconvulsive therapy (ECT). Methods: This study presents an IRB approved retrospective chart review of patients with autism spectrum disorders (ASD), who were treated with ECT at an academic center, between 2001 and 2020. Descriptive statistics were utilized to assess clinical outcomes and duration of ECT treatment. Results: A total of 54 patients diagnosed with ASD who completed a course of ECT were reviewed (male = 30; female = 24; Caucasian = 42; mean age = 16.79 ± 4.9). Comorbid diagnoses included mood disorder (n =39) and catatonia with a mood disorder (n= 21). Intellectual disability was present in 33 patients (61.11%). Regarding ECT, bilateral electrode placement was used for 50 patients (92.5). Mean number of treatments in index course was 57.12 (SD = ± 66.7) with a mean number of maintenance treatments of 24.9 (SD = 46.5). Eight (n = 8) patients received ongoing ECT. The overall mean duration of treatment in days was 300.5 (SD = 322.3). Pre- and post-assessment were completed prior to starting ECT, at 3 months and at 12 months (irrespective if receiving maintenance ECT). Relative to baseline, mean global function scores improved (baseline = 23.7 ± 10.0; 3 months = 41.8 ± 14.3; 12 months = 47.2 ± 15.0), Bush Francis Catatonia scores were reduced (baseline = 14 ± 7.0; 3 months = 11.4 ± 10.2; 12 months = 9.1 ± 5.7); improved food intake was noted [difficulty with food intake at baseline identified among = 5 (9.6); at 3 months = 3 (6.1); at 12 months = 2 (4.3)]; fewer patients displayed suicidality [pre-ECT baseline = 19 (36.5); 3 months = 12 (25.5); 12 months = 7(19.4)]; and also fewer patients displayed self-injurious behaviors [pre-ECT baseline = 22 (44); 3 months = 12 (26.6); 12 months = 5(12.5)]. Conclusion: Patients with a diagnosis of ASD predominantly received bilateral ECT for mood disorder and/or catatonia; index and maintenance courses of ECT were relatively long. Clinical improvement was progressive and noted in multiple areas.http://deepblue.lib.umich.edu/bitstream/2027.42/191468/2/Abstract Submission.pd

74.3 Cognitive Outcome in Adolescents Treated with ECT

http://deepblue.lib.umich.edu/bitstream/2027.42/191432/2/AACAP_Abstract_ECTneuropsych.docxPublished versio

Cognitive Outcomes in Adolescents Treated with Electroconvulsive Therapy

This study identified that the cognitive function of adolescents treated with electroconvulsive therapy (ECT) did not signficantly differ from their pre-ECT cognive performance when baseline and function at approximately 2 months post-ECT was compared.American Academy of Child and Adolescent Psychiatryhttp://deepblue.lib.umich.edu/bitstream/2027.42/191471/2/Abstract Submission.pd