scholarly journals Follow-up of the IceCube alerts with the Baikal-GVD telescope

2021 ◽  
Vol 16 (11) ◽  
pp. C11008
Author(s):  
V.Y. Dik ◽  
V.A. Allakhverdyan ◽  
A.D. Avrorin ◽  
A.V. Avrorin ◽  
V.M. Aynutdinov ◽  
...  
Keyword(s):  
Time Windows ◽  
High Energy ◽  
Muon Neutrino ◽  
Significant Excess ◽  
Expected Number ◽  
Online Mode ◽  
High Energy Muon ◽  
Upper Limits ◽  
Background Events

Abstract The high-energy muon neutrino events of the IceCube telescope, that are triggered as neutrino alerts in one of two probability ranks of astrophysical origin, “gold” and “bronze”, have been followed up by the Baikal-GVD in a fast quasi-online mode since September 2020. Search for correlations between alerts and GVD events reconstructed in two modes, muon-track and cascades (electromagnetic or hadronic showers), for the time windows ±1 h and ±12 h does not indicate statistically significant excess of the measured events over the expected number of background events. Upper limits on the neutrino fluence will be presented for each alert.

The MACRO Experiment

2003 ◽  
Vol 18 (29) ◽  
pp. 2001-2018 ◽  
Author(s):  
G. Giacomelli ◽  
A. Margiotta
Keyword(s):  
Atmospheric Neutrino ◽  
Cosmic Ray ◽  
High Energy ◽  
Magnetic Monopoles ◽  
Low Energy ◽  
Muon Neutrino ◽  
High Energy Muon ◽  
Upper Limits ◽  
Neutrino Astronomy

In this paper we describe the main results obtained by the MACRO experiment: final stringent upper limits on GUT magnetic monopoles and nuclearites, results on atmospheric neutrino oscillations, high energy muon neutrino astronomy, searches for WIMPs, search for low energy stellar gravitational collapse neutrinos, several studies with high energy downgoing muons and determination of the primary cosmic ray composition at knee energies.

scholarly journals THE BAIKAL NEUTRINO TELESCOPE — RESULTS AND PLANS

2005 ◽  
Vol 20 (29) ◽  
pp. 6932-6936 ◽  
Author(s):  
◽  
RALF WISCHNEWSKI ◽  
V. AYNUTDINOV ◽  
V. BALKANOV ◽  
I. BELOLAPTIKOV ◽  
...  
Keyword(s):  
Northern Hemisphere ◽  
High Energy ◽  
Neutrino Telescope ◽  
Muon Neutrino ◽  
Effective Volume ◽  
Diffuse Flux ◽  
High Energy Muon ◽  
Astrophysical Neutrinos

New results from the Baikal neutrino telescope NT200, based on the first 5 years of operation (1998–2003), are presented. We derive an all-flavor limit on the diffuse flux of astrophysical neutrinos between 20 TeV and 50 PeV, extract an enlarged sample of high energy muon neutrino events, and obtain limits on the flux of high energy atmospheric muons. In 2005, the upgraded telescope NT200+ will be commissioned: 3 additional distant strings with only 12 photo-multipliers each will rise the effective volume to 20 Mton at 10 PeV for this largest running neutrino telescope in the Northern hemisphere.

Causes of Death in Schizophrenia and Manic-Depression

1980 ◽  
Vol 136 (3) ◽  
pp. 239-242 ◽  
Author(s):  
Ming T. Tsuang ◽  
Robert F. Woolson ◽  
Jerome A. Fleming
Keyword(s):  
Cause Of Death ◽  
Causes Of Death ◽  
Statistical Significance ◽  
Circulatory System ◽  
Vital Statistics ◽  
Significant Excess ◽  
Expected Number ◽  
Time Period ◽  
Depressive Patients

SummaryCauses of death were studied in a cohort of 200 schizophrenic, 100 manic, and 225 depressive patients who were followed in a historical prospective study. These patients were admitted between 1934 and 1944 and were studied 30 to 40 years later. Five cause of death categories were considered in this analysis: (1) unnatural deaths, (2) neoplasms, (3) diseases of the circulatory system, (4) infective and parasitic diseases, and (5) other causes. For each cause of death, the expected number of deaths was calculated from vital statistics for the State of Iowa for the time period of follow-up. Observed numbers of deaths were contrasted with expected numbers of deaths to assess statistical significance for each diagnostic group. There was a significant excess of unnatural deaths in all diagnostic groups in both sexes, with the exception of female manics. This group, however, did show a significant excess of circulatory system deaths. Both male and female schizophrenics showed a substantial excess of infective disorder deaths.

scholarly journals The Search for Neutrinos from TXS 0506+056 with the ANTARES Telescope

2019 ◽  
Vol 207 ◽  
pp. 02004
Author(s):  
Giulia Illuminati
Keyword(s):  
Point Source ◽  
Neutrino Flux ◽  
High Energy ◽  
Time Dependent ◽  
Source Analysis ◽  
Electromagnetic Spectrum ◽  
Upper Limits ◽  
Γ Rays ◽  
The One

A high-energy neutrino, IC170922A, detected by the IceCube experiment was found to be positionally coincident with the direction of a known blazar, TXS 0506+056, observed in γ-rays and at other wavelengths of the electromagnetic spectrum. Here, we present the results of three different searches for neutrino candidates, associated either with the IC170922A event or with the TXS 0506+056 blazar, performed by the ANTARES Collaboration. The three searches, an online follow-up of the IceCube alert, a standard time-integrated point-source analysis and a time-dependent search, yielded no significant observation. Consequently, 90% C.L. upper limits on the one-flavour neutrino flux and fluence have been derived.

scholarly journals H.E.S.S. Follow-up Observations of Binary Black Hole Coalescence Events during the Second and Third Gravitational-wave Observing Runs of Advanced LIGO and Advanced Virgo

2021 ◽  
Vol 923 (1) ◽  
pp. 109
Author(s):  
H. Abdalla ◽  
F. Aharonian ◽  
F. Ait Benkhali ◽  
E. O. Angüner ◽  
H. Ashkar ◽  
...  
Keyword(s):  
Black Hole ◽  
Gravitational Wave ◽  
High Energy ◽  
Binary Black Hole ◽  
Upper Limits ◽  
Very High Energy ◽  
Stereoscopic System ◽  
The Times ◽  
Very High

Abstract We report on the observations of four well-localized binary black hole (BBH) mergers by the High Energy Stereoscopic System (H.E.S.S.) during the second and third observing runs of Advanced LIGO and Advanced Virgo, O2 and O3. H.E.S.S. can observe 20 deg2 of the sky at a time and follows up gravitational-wave (GW) events by “tiling” localization regions to maximize the covered localization probability. During O2 and O3, H.E.S.S. observed large portions of the localization regions, between 35% and 75%, for four BBH mergers (GW170814, GW190512_180714, GW190728_064510, and S200224ca). For these four GW events, we find no significant signal from a pointlike source in any of the observations, and we set upper limits on the very high energy (>100 GeV) γ-ray emission. The 1–10 TeV isotropic luminosity of these GW events is below 1045 erg s−1 at the times of the H.E.S.S. observations, around the level of the low-luminosity GRB 190829A. Assuming no changes are made to how follow-up observations are conducted, H.E.S.S. can expect to observe over 60 GW events per year in the fourth GW observing run, O4, of which eight would be observable with minimal latency.

1524: High Energy Tumt and Adjuvant Alpha Blockade Significantly Improves Symptoms in Men with Cathegory IIIB (CPPS) Prostatitis. A Prospective Non-Randomized with 5 Years Follow Up

2006 ◽  
Vol 175 (4S) ◽  
pp. 491-492
Author(s):  
Sybille Mariharl ◽  
Christian Seitz ◽  
Bob Djavan ◽  
Matthias Walderl ◽  
Michael Dobrovits ◽  
...  
Keyword(s):  
High Energy ◽  
Alpha Blockade

scholarly journals WIMPs at high energy muon colliders

2021 ◽  
Vol 103 (7) ◽  
Author(s):  
Tao Han ◽  
Zhen Liu ◽  
Lian-Tao Wang ◽  
Xing Wang
Keyword(s):  
High Energy ◽  
High Energy Muon ◽  
Muon Colliders

Plafond Malreduction and Talar Dome Impaction Accelerates Arthrosis After Supination-Adduction Ankle Fracture

2021 ◽  
pp. 107110072110060
Author(s):  
Michael F. Githens ◽  
Malcolm R. DeBaun ◽  
Kimberly A Jacobsen ◽  
Hunter Ross ◽  
Reza Firoozabadi ◽  
...  
Keyword(s):  
Case Series ◽  
High Energy ◽  
Ankle Fractures ◽  
Posttraumatic Arthritis ◽  
Retrospective Case ◽  
Level Of Evidence ◽  
Radiographic Findings ◽  
Posttraumatic Arthrosis ◽  
Patient Reported

Background: Supination-adduction (SAD) type II ankle fractures can have medial tibial plafond and talar body impaction. Factors associated with the development of posttraumatic arthritis can be intrinsic to the injury pattern or mitigated by the surgeon. We hypothesize that plafond malreducton and talar body impaction is associated with early posttraumatic arthrosis. Methods: A retrospective cohort of skeletally mature patients with SAD ankle fractures at 2 level 1 academic trauma centers who underwent operative fixation were identified. Patients with a minimum of 1-year follow-up were included. The presence of articular impaction identified on CT scan was recorded and the quality of reduction on final intraoperative radiographs was assessed. The primary outcome was radiographic ankle arthrosis (Kellgren-Lawrence 3 or 4), and postoperative complications were documented. Results: A total of 175 SAD ankle fractures were identified during a 10-year period; 79 patients with 1-year follow-up met inclusion criteria. The majority of injuries resulted from a high-energy mechanism. Articular impaction was present in 73% of injuries, and 23% of all patients had radiographic arthrosis (Kellgren-Lawrence 3 or 4) at final follow-up. Articular malreduction, defined by either a gap or step >2 mm, was significantly associated with development of arthrosis. Early treatment failure, infection, and nonunion was rare in this series. Conclusion: Malreduction of articular impaction in SAD ankle fractures is associated with early posttraumatic arthrosis. Recognition and anatomic restoration with stable fixation of articular impaction appears to mitigate risk of posttraumatic arthrosis. Investigations correlating postoperative and long-term radiographic findings to patient-reported outcomes after operative treatment of SAD ankle fractures are warranted. Level of Evidence: Level IV, retrospective case series.

scholarly journals Importance of a Follow-Up Ultrasound Protocol in Monitoring Posttraumatic Spleen Complications in Children Treated with a Non-Operative Management

Medicina ◽  
2021 ◽  
Vol 57 (8) ◽  
pp. 734
Author(s):  
Ivona Djordjevic ◽  
Dragoljub Zivanovic ◽  
Ivana Budic ◽  
Ana Kostic ◽  
Danijela Djeric
Keyword(s):  
Splenic Abscess ◽  
Operative Management ◽  
High Energy ◽  
Significant Difference ◽  
Injury Grade ◽  
Grade Ii ◽  
The Mean ◽  
Non Operative Management ◽  
Grade Iii

Background and objectives: For the last three decades, non-operative management (NOM) has been the standard in the treatment of clinically stable patients with blunt spleen injury, with a success rate of up to 95%. However, there are no prospective issues in the literature dealing with the incidence and type of splenic complications after NOM. Materials and methods: This study analyzed 76 pediatric patients, up to the age of 18, with blunt splenic injury who were treated non-operatively. All patients were included in a posttraumatic follow-up protocol with ultrasound examinations 4 and 12 weeks after injury. Results: The mean age of the children was 9.58 ± 3.97 years (range 1.98 to 17.75 years), with no statistically significant difference between the genders. The severity of the injury was determined according to the American Association for Surgery of Trauma (AAST) classification: 7 patients had grade I injuries (89.21%), 21 patients had grade II injuries (27.63%), 33 patients had grade III injuries (43.42%), and 15 patients had grade IV injuries (19.73%). The majority of the injuries were so-called high-energy ones, which were recorded in 45 patients (59.21%). According to a previously created posttraumatic follow-up protocol, complications were detected in 16 patients (21.05%). Hematomas had the highest incidence and were detected in 11 patients (14.47%), while pseudocysts were detected in 3 (3.94%), and a splenic abscess and pseudoaneurysm were detected in 1 patient (1.31%), respectively. The complications were in a direct correlation with injury grade: seven occurred in patients with grade IV injuries (9.21%), five occurred in children with grade III injuries (6.57%), three occurred in patients with grade II injuries (3.94%), and one occurred in a patient with a grade I injury (1.31%). Conclusion: Based on the severity of the spleen injury, it is difficult to predict the further course of developing complications, but complications are more common in high-grade injuries. The implementation of a follow-up ultrasound protocol is mandatory in all patients with NOM of spleen injuries for the early detection of potentially dangerous and fatal complications.

Uncertanties of atmospheric high-energy muon fluxes and spectrum of primary cosmic rays

2007 ◽  
Vol 50 (9) ◽  
pp. 891-897
Author(s):  
A. A. Kochanov ◽  
T. S. Sinegovskaya ◽  
S. I. Sinegovskii
Keyword(s):  
Cosmic Rays ◽  
High Energy ◽  
High Energy Muon ◽  
Primary Cosmic Rays
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