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  1. Book ; Thesis: Beauty photoproduction using decays into muons at HERA

    Samson, Ursula

    (Bonn IR / Universität Bonn, Physikalisches Institut ; 2008,6)

    2008  

    Author's details von Ursula Samson geb. Meyer
    Series title Bonn IR / Universität Bonn, Physikalisches Institut ; 2008,6
    Language English
    Size IV, 156 S., Ill., graph. Darst.
    Publisher Physikalisches Inst
    Publishing place Bonn
    Document type Book ; Thesis
    Thesis / German Habilitation thesis Univ., Diss.. - Nicht für den Austausch--Bonn, 2008
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  2. Article: Modelling Pod Growth Rate of Bambara Groundnut (Vigna subterranea Verdc.) in Response to Photoperiod and Temperature

    Oseghale, S. Etemini / Remison, Samson U. / Otamere, Ester I. / Eifediyi, Kevin E. / Hoogenboom, Gerrit

    Crop science. 2017 Nov., v. 57, no. 6

    2017  

    Abstract: Photoperiod and temperature are important environmental factors that affect the adaptation of bambara groundnut (Vigna subterranea Verdc.) and other crops to hostile climates in the tropics. The use of the accumulation concept, in which the relative rate ...

    Abstract Photoperiod and temperature are important environmental factors that affect the adaptation of bambara groundnut (Vigna subterranea Verdc.) and other crops to hostile climates in the tropics. The use of the accumulation concept, in which the relative rate of progress towards podding sums up to one is a common methodology. However, the lack of quantitative information, has resulted in poor decision making for crop management practices in relation to the time of optimum pod growth rate (Rₒₚₜ). This study investigated modeling pod growth using an additive and interactive relation between pod growth rate, mean photoperiod, and temperature during the pod inductive phase. The field experiment was conducted at Ekpoma Nigeria. Ten bambara groundnut landraces from three different regions in Nigeria (Anyigba, Otukpo, and Nsukka) were sown on six dates from 15 June to 1 September during the successive growing seasons of 2010 to 2012, thus exposing the landraces to mean natural photoperiods of 12 h 23 min, 12 h 19 min, 12 h 14 min, 12 h 10 min, 12 h 5 min, 12 h, 11 h 55 min, 11 h 51 min, and 11 h 47 min during the pod inductive period. The observed optimum photoperiod and temperature for Rₒₚₜ were 12 h and 26°C, respectively, for all landraces. Allocation to pod growth began at the critical photoperiod (Pc) of 12 h 19 min for Otukpo landraces, whereas Pc for Nsukka landraces was 12 h 14 min. However, the Pc for Anyigba landraces occurred earlier at 12 h 23 min. The pod growth model that was developed provided good predictions of pod growth for a natural range of photoperiods and temperatures.
    Keywords Vigna subterranea ; crop management ; field experimentation ; growth models ; landraces ; photoperiod ; temperature ; Nigeria
    Language English
    Dates of publication 2017-11
    Size p. 3145-3155.
    Publishing place The Crop Science Society of America, Inc.
    Document type Article
    Note JOURNAL ARTICLE ; epub
    ZDB-ID 410209-5
    ISSN 0011-183X
    ISSN 0011-183X
    DOI 10.2135/cropsci2016.08.0714
    Database NAL-Catalogue (AGRICOLA)

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  3. Article ; Online: Herbal medicine: a survey of use in Nigerian presurgical patients booked for ambulatory anaesthesia.

    Onyeka, Tonia C / Ezike, Humphrey A / Nwoke, Ogochukwu M / Onyia, Emeka A / Onuorah, Elias C / Anya, Samson U / Nnacheta, Timothy E

    BMC complementary and alternative medicine

    2012  Volume 12, Page(s) 130

    Abstract: Background: Utilization of herbal medicines in the preoperative period by Nigerian patients booked for day case surgery has not been explored.: Methods: Cross-sectional survey of 60 patients presenting for day-case surgery at a tertiary healthcare ... ...

    Abstract Background: Utilization of herbal medicines in the preoperative period by Nigerian patients booked for day case surgery has not been explored.
    Methods: Cross-sectional survey of 60 patients presenting for day-case surgery at a tertiary healthcare institution over a 3-week period in August 2011 was conducted. Using a structured questionnaire, inquiries were made concerning use of herbal medicines in the immediate preoperative period. Socio-demographic characteristics, information on use of concurrent medical prescriptions, types of herbs used, reasons for use, perceived side effects and perceived efficacy were obtained. Data were evaluated using descriptive statistics and Chi-square.
    Results: Fifty-two (86.7%) were American Society of Anesthesiologists (ASA) class 1 while 8 (13%) were ASA 2. Most patients (86.7%) had their procedures done under local infiltration with monitored anaesthesia care (MAC), while 5.0% and 8.3% had their procedures done under regional and general anaesthesia, respectively. About 48.3% of respondents were on concurrent medical prescriptions while 51.7% were not. Forty percent (40%) of patients admitted to use of herbal medicine, all by the oral route, in the immediate perioperative period; 87.5% did not inform their doctor of their herbal use. Types of herbs used included 'dogonyaro', 'agbo', 'nchanwu', and Tahitian noni. Treatment of malaria was commonest reason for use in 29.2% of patients, while cough and concurrent surgical condition were reasons given by 12.5% of patients, respectively. Seventy-nine percent (79.2%) of patients considered their herbal medications effective. Perceived side effects of herbal medication (16.6%) included fever, waist pain and intoxication. There were no variations in use between ASA 1 and ASA 2 patients and none between respondents on conventional medication against those that were not. Variables such as age less than 35 years, female gender, being married and being an urban dweller did not show any significant difference in use.
    Conclusion: This survey revealed many patients were on one or more herbal preparations in the immediate preoperative period. In consideration of possible untoward drug interactions between conventional medication, herbal preparations and anaesthesia, doctors (especially anaesthetists) should routinely assess all patients booked to be anaesthetized, especially those for day case surgery. The authors recommend surveys with larger respondent numbers to determine prevalence of use and possible interactions between indigenous Nigerian herbs and anaesthesia.
    MeSH term(s) Adolescent ; Adult ; Age Factors ; Aged ; Ambulatory Surgical Procedures ; Anesthesia/classification ; Anesthesiology ; Chi-Square Distribution ; Cough/drug therapy ; Cross-Sectional Studies ; Data Collection ; Female ; Health Care Surveys ; Herb-Drug Interactions ; Herbal Medicine ; Humans ; Malaria/drug therapy ; Male ; Marital Status ; Middle Aged ; Nigeria ; Patient Satisfaction ; Physician-Patient Relations ; Phytotherapy/statistics & numerical data ; Plant Preparations/adverse effects ; Plant Preparations/therapeutic use ; Plants, Medicinal ; Sex Factors ; Surveys and Questionnaires ; Urban Population ; Young Adult
    Chemical Substances Plant Preparations
    Language English
    Publishing date 2012-08-20
    Publishing country England
    Document type Journal Article
    ZDB-ID 2050429-9
    ISSN 1472-6882 ; 1472-6882
    ISSN (online) 1472-6882
    ISSN 1472-6882
    DOI 10.1186/1472-6882-12-130
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Synergistic sedation with low-dose midazolam and propofol for colonoscopies.

    Reimann, F M / Samson, U / Derad, I / Fuchs, M / Schiefer, B / Stange, E F

    Endoscopy

    2000  Volume 32, Issue 3, Page(s) 239–244

    Abstract: Background and study aims: Patients undergoing colonoscopy are often sedated with benzodiazepines and long-acting opiates. Since low-dose midazolam also acts synergistically with short-acting propofol, we compared this synergistic sedation with a ... ...

    Abstract Background and study aims: Patients undergoing colonoscopy are often sedated with benzodiazepines and long-acting opiates. Since low-dose midazolam also acts synergistically with short-acting propofol, we compared this synergistic sedation with a standard combination of midazolam and the opioid nalbuphine for colonoscopies.
    Patients and methods: A total of 79 patients presenting for colonoscopies were randomly assigned to the following protocols. Patients in group I (n = 32) received a median dose of 9 mg midazolam (interquartile range [IQR] 6 to 12); 20 patients (59%) needed additional nalbuphine (median 20 mg, IQR 10 to 20). Patients in group II (n = 47) received 2 mg midazolam and repeated injections of propofol (median 100 mg, IQR 53 to 145) with a maximal bolus of 50 mg.
    Results: Patients treated with the synergistic sedation (group II) recovered remarkably sooner after the procedure compared with those in group I, with a median time to discharge of 17 minutes vs. 93 minutes (P<0.001). Of the patients treated with analgosedation (group I), 28 % were unable to take part in a reaction time measurement and attention awareness test 1 hour after the procedure. All patients treated with the synergistic sedation were able to participate (P=0.002), and performed better. Despite a lower proportion of complete amnesia, patients treated with synergistic sedation more often rated the procedure as comfortable (81% vs. 50 %). Quality of sedation from the point of view of the endoscopist, and cardiorespiratory parameters, were similar in both groups.
    Conclusions: Low-dose midazolam combined with propofol is an effective and economic alternative to benzodiazepine-based analgosedation. It is associated with a high degree of patient comfort and rapid recovery times, and has a potential cost benefit concerning nursing care and bed facilities.
    MeSH term(s) Adult ; Analgesics, Opioid/administration & dosage ; Anesthesia Recovery Period ; Colonoscopy ; Conscious Sedation ; Drug Synergism ; Female ; Humans ; Hypnotics and Sedatives/administration & dosage ; Male ; Midazolam/administration & dosage ; Nalbuphine/administration & dosage ; Propofol/administration & dosage
    Chemical Substances Analgesics, Opioid ; Hypnotics and Sedatives ; Nalbuphine (L2T84IQI2K) ; Midazolam (R60L0SM5BC) ; Propofol (YI7VU623SF)
    Language English
    Publishing date 2000-03
    Publishing country Germany
    Document type Clinical Trial ; Journal Article ; Randomized Controlled Trial ; Research Support, Non-U.S. Gov't
    ZDB-ID 80120-3
    ISSN 1438-8812 ; 0013-726X
    ISSN (online) 1438-8812
    ISSN 0013-726X
    DOI 10.1055/s-2000-134
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Herbal medicine: a survey of use in Nigerian presurgical patients booked for ambulatory anaesthesia

    Onyeka, Tonia C / Humphrey A Ezike / Ogochukwu M Nwoke / Emeka A Onyia / Elias C Onuorah / Samson U Anya / Timothy E Nnacheta

    BMC complementary and alternative medicine. 2012 Dec., v. 12, no. 1

    2012  

    Abstract: BACKGROUND: Utilization of herbal medicines in the preoperative period by Nigerian patients booked for day case surgery has not been explored. METHODS: Cross-sectional survey of 60 patients presenting for day-case surgery at a tertiary healthcare ... ...

    Abstract BACKGROUND: Utilization of herbal medicines in the preoperative period by Nigerian patients booked for day case surgery has not been explored. METHODS: Cross-sectional survey of 60 patients presenting for day-case surgery at a tertiary healthcare institution over a 3-week period in August 2011 was conducted. Using a structured questionnaire, inquiries were made concerning use of herbal medicines in the immediate preoperative period. Socio-demographic characteristics, information on use of concurrent medical prescriptions, types of herbs used, reasons for use, perceived side effects and perceived efficacy were obtained. Data were evaluated using descriptive statistics and Chi-square. RESULTS: Fifty-two (86.7%) were American Society of Anesthesiologists (ASA) class 1 while 8 (13%) were ASA 2. Most patients (86.7%) had their procedures done under local infiltration with monitored anaesthesia care (MAC), while 5.0% and 8.3% had their procedures done under regional and general anaesthesia, respectively. About 48.3% of respondents were on concurrent medical prescriptions while 51.7% were not. Forty percent (40%) of patients admitted to use of herbal medicine, all by the oral route, in the immediate perioperative period; 87.5% did not inform their doctor of their herbal use. Types of herbs used included ‘dogonyaro’, ‘agbo’, ‘nchanwu’, and Tahitian noni. Treatment of malaria was commonest reason for use in 29.2% of patients, while cough and concurrent surgical condition were reasons given by 12.5% of patients, respectively. Seventy-nine percent (79.2%) of patients considered their herbal medications effective. Perceived side effects of herbal medication (16.6%) included fever, waist pain and intoxication. There were no variations in use between ASA 1 and ASA 2 patients and none between respondents on conventional medication against those that were not. Variables such as age less than 35 years, female gender, being married and being an urban dweller did not show any significant difference in use. CONCLUSION: This survey revealed many patients were on one or more herbal preparations in the immediate preoperative period. In consideration of possible untoward drug interactions between conventional medication, herbal preparations and anaesthesia, doctors (especially anaesthetists) should routinely assess all patients booked to be anaesthetized, especially those for day case surgery. The authors recommend surveys with larger respondent numbers to determine prevalence of use and possible interactions between indigenous Nigerian herbs and anaesthesia.
    Keywords Morinda citrifolia ; adverse effects ; alternative medicine ; anesthesia ; cough ; cross-sectional studies ; descriptive statistics ; drug interactions ; drug therapy ; females ; fever ; health services ; herbal medicines ; herbs ; malaria ; pain ; patients ; physicians ; poisoning ; questionnaires ; sociodemographic characteristics ; surgery ; surveys ; waist
    Language English
    Dates of publication 2012-12
    Size p. 130.
    Publishing place BioMed Central
    Document type Article
    ZDB-ID 2050429-9
    ISSN 1472-6882
    ISSN 1472-6882
    DOI 10.1186/1472-6882-12-130
    Database NAL-Catalogue (AGRICOLA)

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  6. Article ; Online: Herbal medicine

    Onyeka Tonia C / Ezike Humphrey A / Nwoke Ogochukwu M / Onyia Emeka A / Onuorah Elias C / Anya Samson U / Nnacheta Timothy E

    BMC Complementary and Alternative Medicine, Vol 12, Iss 1, p

    a survey of use in Nigerian presurgical patients booked for ambulatory anaesthesia

    2012  Volume 130

    Abstract: Abstract Background Utilization of herbal medicines in the preoperative period by Nigerian patients booked for day case surgery has not been explored. Methods Cross-sectional survey of 60 patients presenting for day-case surgery at a tertiary healthcare ... ...

    Abstract Abstract Background Utilization of herbal medicines in the preoperative period by Nigerian patients booked for day case surgery has not been explored. Methods Cross-sectional survey of 60 patients presenting for day-case surgery at a tertiary healthcare institution over a 3-week period in August 2011 was conducted. Using a structured questionnaire, inquiries were made concerning use of herbal medicines in the immediate preoperative period. Socio-demographic characteristics, information on use of concurrent medical prescriptions, types of herbs used, reasons for use, perceived side effects and perceived efficacy were obtained. Data were evaluated using descriptive statistics and Chi-square. Results Fifty-two (86.7%) were American Society of Anesthesiologists (ASA) class 1 while 8 (13%) were ASA 2. Most patients (86.7%) had their procedures done under local infiltration with monitored anaesthesia care (MAC), while 5.0% and 8.3% had their procedures done under regional and general anaesthesia, respectively. About 48.3% of respondents were on concurrent medical prescriptions while 51.7% were not. Forty percent (40%) of patients admitted to use of herbal medicine, all by the oral route, in the immediate perioperative period; 87.5% did not inform their doctor of their herbal use. Types of herbs used included ‘dogonyaro’, ‘agbo’, ‘nchanwu’, and Tahitian noni. Treatment of malaria was commonest reason for use in 29.2% of patients, while cough and concurrent surgical condition were reasons given by 12.5% of patients, respectively. Seventy-nine percent (79.2%) of patients considered their herbal medications effective. Perceived side effects of herbal medication (16.6%) included fever, waist pain and intoxication. There were no variations in use between ASA 1 and ASA 2 patients and none between respondents on conventional medication against those that were not. Variables such as age less than 35 years, female gender, being married and being an urban dweller did not show any significant difference in use. Conclusion This ...
    Keywords Herbal medicine use ; Ambulatory anaesthesia ; Day case surgery ; Other systems of medicine ; RZ201-999
    Subject code 610
    Language English
    Publishing date 2012-08-01T00:00:00Z
    Publisher BMC
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article: Synergistic Sedation with Low-Dose Midazolam and Propofol for Colonoscopies

    Reimann, F. M. / Samson, U. / Derad, I. / Fuchs, M. / Schiefer, B. / Stange, E. F.

    Endoscopy

    2000  Volume 32, Issue 03, Page(s) 239–244

    Language English
    Publishing date 2000-03-01
    Publishing place Stuttgart ; New York
    Document type Article
    ZDB-ID 80120-3
    ISSN 1438-8812 ; 0013-726X
    ISSN (online) 1438-8812
    ISSN 0013-726X
    DOI 10.1055/s-2000-134
    Database Thieme publisher's database

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  8. Article: Inclusive K(S);(0)K(S);(0) resonance production in ep collisions at HERA.

    Chekanov, S / Derrick, M / Magill, S / Musgrave, B / Nicholass, D / Repond, J / Yoshida, R / Mattingly, M C K / Antonioli, P / Bari, G / Bellagamba, L / Boscherini, D / Bruni, A / Bruni, G / Cindolo, F / Corradi, M / Iacobucci, G / Margotti, A / Nania, R /
    Polini, A / Antonelli, S / Basile, M / Bindi, M / Cifarelli, L / Contin, A / De Pasquale, S / Sartorelli, G / Zichichi, A / Bartsch, D / Brock, I / Hartmann, H / Hilger, E / Jakob, H-P / Jüngst, M / Nuncio-Quiroz, A E / Paul, E / Samson, U / Schönberg, V / Shehzadi, R / Wlasenko, M / Brook, N H / Heath, G P / Morris, J D / Capua, M / Fazio, S / Mastroberardino, A / Schioppa, M / Susinno, G / Tassi, E / Kim, J Y / Ibrahim, Z A / Kamaluddin, B / Wan Abdullah, W A T / Ning, Y / Ren, Z / Sciulli, F / Chwastowski, J / Eskreys, A / Figiel, J / Galas, A / Gil, M / Olkiewicz, K / Stopa, P / Zawiejski, L / Adamczyk, L / Bołd, T / Grabowska-Bołd, I / Kisielewska, D / Lukasik, J / Przybycień, M / Suszycki, L / Kotański, A / Słomiński, W / Behrens, U / Blohm, C / Bonato, A / Borras, K / Ciesielski, R / Coppola, N / Fang, S / Fourletova, J / Geiser, A / Göttlicher, P / Grebenyuk, J / Gregor, I / Haas, T / Hain, W / Hüttmann, A / Januschek, F / Kahle, B / Katkov, I I / Klein, U / Kötz, U / Kowalski, H / Lobodzinska, E / Löhr, B / Mankel, R / Melzer-Pellmann, I-A / Miglioranzi, S / Montanari, A / Namsoo, T / Notz, D / Parenti, A / Rinaldi, L / Roloff, P / Rubinsky, I / Santamarta, R / Schneekloth, U / Spiridonov, A / Szuba, D / Szuba, J / Theedt, T / Wolf, G / Wrona, K / Yagües Molina, A G / Youngman, C / Zeuner, W / Drugakov, V / Lohmann, W / Schlenstedt, S / Barbagli, G / Gallo, E / Pelfer, P G / Bamberger, A / Dobur, D / Karstens, F / Vlasov, N N / Bussey, P J / Doyle, A T / Dunne, W / Forrest, M / Rosin, M / Saxon, D H / Skillicorn, I O / Gialas, I / Papageorgiu, K / Holm, U / Klanner, R / Lohrmann, E / Schleper, P / Schörner-Sadenius, T / Sztuk, J / Stadie, H / Turcato, M / Foudas, C / Fry, C / Long, K R / Tapper, A D / Matsumoto, T / Nagano, K / Tokushuku, K / Yamada, S / Yamazaki, Y / Barakbaev, A N / Boos, E G / Pokrovskiy, N S / Zhautykov, B O / Aushev, V / Borodin, M / Kadenko, I / Kozulia, A / Libov, V / Lisovyi, M / Lontkovskyi, D / Makarenko, I / Sorokin, Iu / Verbytskyi, A / Volynets, O / Son, D / de Favereau, J / Piotrzkowski, K / Barreiro, F / Glasman, C / Jimenez, M / Labarga, L / Del Peso, J / Ron, E / Soares, M / Terrón, J / Zambrana, M / Corriveau, F / Liu, C / Schwartz, J / Walsh, R / Zhou, C / Tsurugai, T / Antonov, A / Dolgoshein, B A / Gladkov, D / Sosnovtsev, V / Stifutkin, A / Suchkov, S / Dementiev, R K / Ermolov, P F / Gladilin, L K / Golubkov, Yu A / Khein, L A / Korzhavina, I A / Kuzmin, V A / Levchenko, B B / Lukina, O Yu / Proskuryakov, A S / Shcheglova, L M / Zotkin, D S / Abt, I / Caldwell, A / Kollar, D / Reisert, B / Schmidke, W B / Grigorescu, G / Keramidas, A / Koffeman, E / Kooijman, P / Pellegrino, A / Tiecke, H / Vázquez, M / Wiggers, L / Brümmer, N / Bylsma, B / Durkin, L S / Lee, A / Ling, T Y / Allfrey, P D / Bell, M A / Cooper-Sarkar, A M / Devenish, R C E / Ferrando, J / Foster, B / Korcsak-Gorzo, K / Oliver, K / Robertson, A / Uribe-Estrada, C / Walczak, R / Bertolin, A / Dal Corso, F / Dusini, S / Longhin, A / Stanco, L / Bellan, P / Brugnera, R / Carlin, R / Garfagnini, A / Limentani, S / Oh, B Y / Raval, A / Ukleja, J / Whitmore, J J / Iga, Y / D'Agostini, G / Marini, G / Nigro, A / Cole, J E / Hart, J C / Abramowicz, H / Ingbir, R / Kananov, S / Levy, A / Stern, A / Kuze, M / Maeda, J / Hori, R / Kagawa, S / Okazaki, N / Shimizu, S / Tawara, T / Hamatsu, R / Kaji, H / Kitamura, S / Ota, O / Ri, Y D / Costa, M / Ferrero, M I / Monaco, V / Sacchi, R / Solano, A / Arneodo, M / Ruspa, M / Fourletov, S / Martin, J F / Stewart, T P / Boutle, S K / Butterworth, J M / Gwenlan, C / Jones, T W / Loizides, J H / Wing, M / Brzozowska, B / Ciborowski, J / Grzelak, G / Kulinski, P / Luzniak, P / Malka, J / Nowak, R J / Pawlak, J M / Tymieniecka, T / Ukleja, A / Zarnecki, A F / Adamus, M / Plucinski, P / Eisenberg, Y / Hochman, D / Karshon, U / Brownson, E / Danielson, T / Everett, A / Kçira, D / Reeder, D D / Ryan, P / Savin, A A / Smith, W H / Wolfe, H / Bhadra, S / Catterall, C D / Cui, Y / Hartner, G / Menary, S / Noor, U / Standage, J / Whyte, J

    Physical review letters

    2008  Volume 101, Issue 11, Page(s) 112003

    Abstract: Inclusive K_{S};{0}K_{S};{0} production in ep collisions at the DESY ep collider HERA was studied with the ZEUS detector using an integrated luminosity of 0.5 fb;{-1}. Enhancements in the mass spectrum were observed and are attributed to the production ... ...

    Abstract Inclusive K_{S};{0}K_{S};{0} production in ep collisions at the DESY ep collider HERA was studied with the ZEUS detector using an integrated luminosity of 0.5 fb;{-1}. Enhancements in the mass spectrum were observed and are attributed to the production of f_{2}(1270)/a_{2};{0}(1320), f_{2};{'}(1525) and f_{0}(1710). Masses and widths were obtained using a fit which takes into account theoretical predictions based on SU(3) symmetry arguments, and are consistent with the Particle Data Group values. The f_{0}(1710) state, which has a mass consistent with a glueball candidate, was observed with a statistical significance of 5 standard deviations. However, if this state is the same as that seen in gammagamma-->K_{S};{0}K_{S};{0}, it is unlikely to be a pure glueball state.
    Language English
    Publishing date 2008-09-12
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.101.112003
    Database MEDical Literature Analysis and Retrieval System OnLINE

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