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183 results on '"Cortinovis, I."'

1. Measurement of the $2S_{1/2},F$=$0 \rightarrow 2P_{1/2},F$=$1$ transition in Muonium

Author

Janka, G., Ohayon, B., Cortinovis, I., Burkley, Z., Borges, L. de Sousa, Depero, E., Golovizin, A., Ni, X., Salman, Z., Suter, A., Prokscha, T., and Crivelli, P.

Subjects
Physics - Atomic Physics, High Energy Physics - Experiment
Abstract

Muons are puzzling physicists since their discovery when they were first thought to be the meson predicted by Yukawa to mediate the strong force. The recent results at Fermilab on the muon g-2 anomaly puts the muonic sector once more under the spotlight and calls for new measurements with this fascinating particle. Here we present the results of the first measurement of the $2S_{1/2},F$=$0 \rightarrow 2P_{1/2},F$=$1$ transition in Muonium, the hydrogen-like bound state of a positive muon and an electron. The measured value of 580.6 $\pm$6.8 MHz is in agreement with the theoretical calculations. From this measurement a value of the Lamb shift of 1045.5 $\pm$6.8 MHz is extracted, compatible with previous experiments. We also determine for the first time the $2S$ hyperfine splitting in Muonium to be 559.6$\pm$7.2 MHz. The measured transition being isolated from the other hyperfine levels holds the promise to provide an improved determination of the Muonium Lamb shift at a level where bound state QED recoil corrections not accessible in hydrogen could be tested. Such a measurement will also be sensitive to new physics in the muonic sector, e.g. to new bosons which might provide an explanation of the g-2 muon anomaly or Lorentz and CPT violation. We also present the first observation of Muonium in the $n = 3$ excited state opening up the possibility of new precise microwave measurements as realized in hydrogen., Comment: 6 pages, 5 Figs

Published
2022
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2. Precision measurement of the Lamb shift in Muonium

Author

Ohayon, B., Janka, G., Cortinovis, I., Burkley, Z., Bourges, L. de Sousa, Depero, E., Golovizin, A., Ni, X., Salman, Z., Suter, A., Vigo, C., Prokscha, T., and Crivelli, P.

Subjects
Physics - Atomic Physics, High Energy Physics - Experiment
Abstract

We report a new measurement of the $n=2$ Lamb shift in Muonium using microwave spectroscopy. Our result of $1047.2(2.3)_\textrm{stat}(1.1)_\textrm{syst}$ MHz comprises an order of magnitude improvement upon the previous best measurement. This value matches the theoretical calculation within one standard deviation allowing us to set limits on CPT violation in the muonic sector, as well as on new physics coupled to muons and electrons which could provide an explanation of the muon $g-2$ anomaly., Comment: 6 pages, 4 figures

Published
2021
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9. Anthropometry as a predictor for mortality among Ugandan children, allowing for socio-economic variables

Author

Vella, V., Tomkins, A., Ndiku, J., Marshal, T., and Cortinovis, I

Subjects
Anthropometry -- Analysis, Children -- Patient outcomes
Abstract

Follow-up survey after anthropometric measurements of length, height, weight and mid-upper arm circumference (MUAC) in 4320 children of 0-59 months of age in South West Uganda revealed higher mortality rates in children whose anthropometric indices were low. The prediction sensitivity of the indices was MUAC, weight-for-age, height-for-age, weight-for-height. MUAC values less than 12.5, 11.5 and 10.5 cm predicted mortality figures of 10.9%, 18.7% and 36.5%, respectively. Low socio-economic status did not affect the prediction capacity of anthropometry, despite poor nutritional states.

Published
1994

10. Construction of a socio-economic index to facilitate analysis of health data in developing countries

Author

Cortinovis, I., Vella, V., and Ndiku, J.

Subjects
Developing countries -- Health aspects, Health status indicators -- Research, Social indicators -- Research, Health, Social sciences
Abstract

In order to plan, implement and monitor health interventions for the most deprived sector of the population, it is necessary to identify socioeconomic groups at risk. Multiple Correspondence Analysis was used to construct a socio-economic index based on data collected from a sample of 2698 households in South-West district of the Ugandan Republic in 1988. This study is a part of the baseline survey done by the Government of Uganda in collaboration with UNICEF. Its aim was to reduce the incidence of death of children below 5 years from diahorrea. Two factorial axes, representing respectively the socio-cultural and the anthropological conditions, explained more than 80% of the total variability. Among the 11 variables employed the most useful in characterizing the socio-economic classification were: father's occupation, parent's literacy, father's professional position and ownership of a radio. A classification in 7 levels was obtained. The first two levels are characterized as professionals and civil servants. The bottom two levels include households where both parents are illiterate and where father's primary activity is agricultural at a subsistence level. The three middle levels represent a transitional situation. In order to classify the family into the different levels, the other related variables, such as father's professional position or ownership of radio or father's religion or presence of latrine proved to be very useful. A flow chart which identifies which level a household belongs to was constructed. A general and valid observation is that families classified into the last two levels (6 and 7) constituted the population at risk for health conditions.

Published
1993

14. Screening practice and misplaced priorities

Author

Mauri, D., Valachis, A., Polyzos, N. P., Cortinovis, I., Karampoiki, V., Loukidou, E., Alevizaki, P., Kamposioras, K., Kouris, G., Alexandropoulou, P., Tsali, L., Panou, C., Stamatelopoulos, A., Lakiotis, V., Spiliopoulou, A., Terzoudi, A., Ioakimidou, A., Karathanasi, I., Bristianou, M., Casazza, G., Pavlidis, Nicholas, Pavlidis, Nicholas [0000-0002-2195-9961], Surgical clinical sciences, and Faculty of Medicine and Pharmacy

Subjects
Male, Cervix, Skin cancer, Medicine, Male genital system examination, Melanoma, Sigmoidoscopy, Cancer, Prostatic Neoplasms/diagnosis, Greece, Obstetrics, Statistics, Prostate, Colonoscopy, General Medicine, Multicenter study, Clinical trial, Attitude to health, Digital rectal examination, Oncology, Health care planning, Prostate tumor, Attitude to Health, Human, Mammography, medicine.medical_specialty, Uterine cervical neoplasms, Colon, Physical examination, Urinalysis, Article, Education, Cancer screening, Medical research, Occult blood, Humans, Physical Examination, Mass screening, Aged, Preventive medicine, Gynecology, Consultation, Physical Examination/statistics & numerical data, Health Priorities, Prevention, Rectum, Rectal examination, medicine.disease, Colorectal cancer, Social status, Patient participation, Breast neoplasms, Cancer Research, Uterine Cervical Neoplasms, Transrectal ultrasonography, Neoplasms, Mass Screening, Breast, Health priorities, Middle aged, Skin, Cervical cancer, Prostate cancer, medicine.diagnostic_test, Middle Aged, Papanicolaou test, Neoplasms/*prevention & control, Body mass, Screening, Female, Prostatic neoplasms, Thorax radiography, Uterine cervix cancer, Adult, Breast examination, Echomammography, Greece/epidemiology, Breast tumor, Breast Neoplasms, Mammography/statistics & numerical data, Uterine Cervical Neoplasms/diagnosis, Pap test, Blood cell count, business.industry, Breast Neoplasms/diagnosis, Prostatic Neoplasms, Mass Screening/*utilization, Neoplasm, Utilization review, Patient Participation, Uterine cervix tumor, business, Controlled study
Abstract

Purpose: To estimate cancer screening coverage among a large sample of Greek individuals. Methods: 7012 adults from 30 Hellenic areas were surveyed. Tests included: faecal occult blood test, sigmoidoscopy, chest X-ray, urine test, testicular examination, trans-rectal ultrasound, full blood count, skin examination, digital rectal examination, PSA, Pap test, mammography, clinical breast examination (CBE), self breast examination and breast ultrasound. Results: Eighty-eight percent of males and 93% of females declared being interested in cancer screening; 37.8% of men and 37.9% of women had had a medical consultation for screening purpose in the previous 2 years. Less than 2% reported having received screening for colorectal cancer or skin malignancies. Screening for cervical cancer, mammography and CBE was reported by 39.6%, 22.8% and 27.9% of females respectively. Twenty percent of males reported screening for prostate cancer. Conclusion: The actual opportunistic screening approach presents important deficiencies with displaced priorities in test performance and a low proportion of individuals undergoing recommended tests. © Feseo 2009. 11 4 228 236

Published
2009

16. The 'gray zone' of the Ph-negative myeloproliferative neoplasm; proposal of a decision tree useful in the differential diagnosis

Author

Gianelli, U, Ascani, S, Bonoldi, E, Bossi, A, Boveri, E, Cortinovis, I, Moro, A, Fraternali Orcioni, G, Sabattini, E, Valli R, Gugliotta, G, FLORENA, Ada Maria, FRANCO, Vito, Gianelli, U, Ascani, S, Bonoldi, E, Bossi, A, Boveri, E, Cortinovis, I, Florena, AM, Moro, A, Fraternali Orcioni, G, Sabattini, E, Valli R, Gugliotta, G, and Franco, V

Subjects
ph-negative MPN, bone marrow biopsy, Settore MED/08 - Anatomia Patologica
Published
2010

21. [Birth weight of infants born between the 23rd and 42nd gestational week in Italy]

Author

Parazzini F, Cortinovis I, Renata Bortolus, and Zanardo V

Subjects
Male, Embryonic and Fetal Development, Italy, Pregnancy, Infant, Newborn, Birth Weight, Humans, Female, Gestational Age
Abstract

The Italian distribution of birth weight has been computed using information routinely collected by the Italian Central Institute of Statistics on about 1,150,000 births in the period 1984-1985. Individual records include data on birth weight for single/multiple births for 28th-42nd gestational weeks and for delivery modalities for 23rd-27th gestational weeks, according to sex. This analysis shows, from a large national data-set, distribution of weight at birth from a Southern European population, providing to obstetrics and perinatologists curves of fetal growth more directly representative of the population under their care.

Published
1998

27. Cancer screening practice and misplaced priorities in Greece

Author

Kamposioras, K., primary, Valachis, A., additional, Cortinovis, I., additional, Karampoiki, V., additional, Polyzos, N. P., additional, Koukourakis, G., additional, Tzachanis, D., additional, Pectasides, D., additional, Casazza, G., additional, and Mauri, D., additional

Published
2008
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29. [Standards of birth weight in Italy]

Author

Parazzini F, Cortinovis I, Renata Bortolus, and Fedele L

Subjects
Adult, Male, Adolescent, Infant, Newborn, Gestational Age, Delivery, Obstetric, Education, Italy, Pregnancy, Reference Values, Birth Weight, Humans, Female, Birth Order, Maternal Age
Abstract

The Italian standards of birth weight have been computed using information routinely collected by the Italian Central Institute of Statistics on about 1,200,000 births in the period 1984-1985. Individual records include data on birth weight and main fetal and maternal characteristics and delivery modalities. The crude and smoothed 5th, 10th, 50th, 90th and 95th centiles of weight at birth as function of gestational age according to sex, type of birth, maternal age and parity are presented. Centiles of weight at birth were higher (about 5%) in males than in females in all gestational ages: for example the 50th centile of weight at 40 weeks gestation was 3479 g in males and 3332 g in females. Between the 28th and the 32nd week the 50th centile of birth weight for multiple births grew at a rate similar to that of singletons; but beyond 32 weeks the weight growth in multiple birth was markedly lower than in singleton ones, the median multiple birth weight reaching the 10th centile of singleton at 38 weeks. The values of centiles increased with parity in both sexes and all gestational ages. The difference was however limited: for example with reference to the 50th centile the value for births in women reporting three or more births was about 5% higher than in those reporting no previous birth. Likewise, centiles of weight were higher in older women, but the difference tended to disappear after 36 weeks gestation. This analysis shows from a large national data-set standards of weight at birth from a Southern European population, providing to obstetrics and perinatologists curves of fetal growth more directly representative of the population under their care.

Published
1991

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