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1.
Rev Sci Instrum ; 94(8)2023 Aug 01.
Article in English | MEDLINE | ID: mdl-38065183

ABSTRACT

We sympathetically cool highly charged ions (HCI) in Coulomb crystals of Doppler-cooled Be+ ions confined in a cryogenic linear Paul trap that is integrated into a fully enclosing radio-frequency resonator manufactured from superconducting niobium. By preparing a single Be+ cooling ion and a single HCI, quantum logic spectroscopy toward frequency metrology and qubit operations with a great variety of species are enabled. While cooling down the assembly through its transition temperature into the superconducting state, an applied quantization magnetic field becomes persistent, and the trap becomes shielded from subsequent external electromagnetic fluctuations. Using a magnetically sensitive hyperfine transition of Be+ as a qubit, we measure the fractional decay rate of the stored magnetic field to be at the 10-10 s-1 level. Ramsey interferometry and spin-echo measurements yield coherence times of >400 ms, demonstrating excellent passive magnetic shielding at frequencies down to DC.

3.
Diseases ; 10(4)2022 Dec 01.
Article in English | MEDLINE | ID: mdl-36547202

ABSTRACT

On 1 October 2022, Marcel Tanner celebrated his 70th birthday with his family and friends on the River Rhein in Basel. Trained in epidemiology (Ph.D.) and public health (MPH), Tanner devoted his entire working life to research, teaching, and capacity building. Indeed, he built up productive partnerships, fostered multinational consortia, served on numerous scientific and strategic advisory boards, and contributed measurably to improving people's health and well-being. We systematically searched the Web of Science Core Collection to identify Tanner's scholarly contribution and pursued an in-depth analysis of his scientific oeuvre including the main areas of research, pathogens, diseases, and health systems, and the geographical foci of his scholarly activities. Additionally, we examined Tanner's impact on personal and institutional capacity building in the arena of global health. We also invited a handful of colleagues to describe their experiences while working with Marcel Tanner. What transpires is a considerable breadth and depth of peer-reviewed publications in tropical medicine; epidemiology, environmental, and occupational health; parasitology; and infectious diseases. More than a third of the 622 peer-reviewed articles, the first piece published in 1978, focused on various aspects of the protozoan parasite Plasmodium and the disease it causes: malaria. Tanner trained, taught, and inspired generations of students, scientists, and practitioners all over the world. His unique ability to bring people and institutions together to work in partnership is at the heart of an impactful career in global health.

4.
Acta Trop ; 226: 106155, 2022 Feb.
Article in English | MEDLINE | ID: mdl-34634266

ABSTRACT

Acta Tropica is an international, peer-reviewed journal advancing scientific research in the fields of tropical medicine and parasitology. This article elucidates the rich history of the journal and speculates about its future. Acta Tropica was launched in 1944 and formed an integral part of the establishment and running of the Swiss Tropical Institute in Basel. After two distinct periods of relatively small publication activities (1944-1976 and 1977-1988), in 1989, Acta Tropica was transferred to the Dutch publisher Elsevier. Subsequently, the annual number of publications steadily increased and the scope of the journal broadened to the biology of pathogens and their vectors, to genetics, host-parasite relationships, mechanisms of pathogenicity, diagnostics, and treatment of tropical diseases. The body of published articles contributed to an improved understanding of the prevention, surveillance, control, and elimination of diseases that are intimately linked to poverty, such as malaria and neglected tropical diseases. In recent years, the scope of Acta Tropica was widening to target emerging and re-emerging infectious diseases, epidemics and pandemics, interrelations of microbes, viruses, and parasites, co-dependencies of epidemiology, ecology, environment, and climate change. Importantly, non-communicable diseases are gaining interest in low- and middle-income countries due to urbanization, globalization, and rapidly changing life styles, and hence, these issues receive growing prominence. Acta Tropica continues to embrace inter- and, indeed, transdisciplinary research to address pressing global health issues and sustainable development.


Subject(s)
Tropical Medicine , Climate Change , Global Health , Humans , Neglected Diseases , Sustainable Development
5.
Acta Trop ; 225: 106175, 2022 Jan.
Article in English | MEDLINE | ID: mdl-34627762

ABSTRACT

The inaugural issue of Acta Tropica has been published in 1944, at a time of utmost international isolation and uncertainty due to World War II. Now, more than seven decades later, Acta Tropica is a trusted outlet to communicate and disseminate scientific advances in the fields of parasitology and tropical medicine. As a scholarly, peer-reviewed journal, Acta Tropica contributes to the 2030 Agenda for Sustainable Development, particularly the Sustainable Development Goal (SDG) 3, that is "Ensure healthy lives and promote well-being for all of all ages". This article explores how Acta Tropica has evolved over time. Our analysis is based on a systematic review of keywords derived from all issues published in a specific year, arbitrarily selected at decadal snapshots (1950, 1960, 1970, 1980, 1990, 2000, 2010, and 2020). Results indicate a decrease in interdisciplinarity in favour of more specialised expertise in various fields of infectious diseases research and public health with a particular emphasis on low- and middle-income countries. Yet, by examining first and last authors' institutional affiliations and classifying countries by the Human Development Index (HDI), we find that most authors are affiliated with institutions in high- and very high-HDI countries. Over time, the mean number of authors on a paper has increased severalfold (from 1.35 in 1950 to 7.51 in 2020). Taken together, Acta Tropica has become increasingly globally anchored and contributes not only to SDG 3, but increasingly also to SDG 17, that is "Revitalize the global partnership for sustainable development".


Subject(s)
Sustainable Development , Tropical Medicine , Health Status , Humans , Motivation , Public Health
6.
Educ. med. (Ed. impr.) ; 20(6): 376-379, nov.-dic. 2019. tab
Article in Spanish | IBECS | ID: ibc-191845

ABSTRACT

INTRODUCCIÓN: Se ha demostrado que el desarrollo de burnout en los médicos se inicia desde su formación académica y puede repercutir en su vida personal. OBJETIVO: Evaluar la prevalencia de burnout al inicio y tras un mes de rotación clínica. MATERIAL Y MÉTODOS: Se empleó el Maslach Burnout Inventory-Human Services Survey de 22 reactivos. Se evaluaron al inicio de la rotación, después de un período vacacional, y después de un mes de rotación clínica. Se estableció la prevalencia y las diferencias entre las 2 mediciones. RESULTADOS: Veintiún (12,3%) alumnos presentaban síntomas de severidad al inicio del trimestre y 34 (19,8%) después del primer mes (p = 0,059). Tras eliminar la realización personal, 54 (31,6%) y 76 (44,2%) alumnos presentaron severidad en el resto de las dimensiones (p = 0,016), respectivamente. CONCLUSIÓN: Después de un mes de exposición clínica se presentó un incremento significativo en la presencia de cansancio emocional, despersonalización y burnout


INTRODUCTION: It has been demonstrated that the development of burnout in physicians begins during their academic training and it can affect their personal life. OBJECTIVE: To evaluate the prevalence of burnout in medical students at the beginning, and after one month of clinical rotation. MATERIALS AND METHODS: We evaluated students at the beginning of surgical clinical rotation and one month after using the Maslach Burnout Inventory-Human Services Survey. The prevalence and differences between the 2 measurements were calculated. RESULTS: Twenty-one (12.3%) students showed symptoms of severity at the beginning, and 34 (19.8%) after the first month (P = .059). After eliminating the personal accomplishment scale, 54 (31.6%) and 76 (44.2%) students had severity of symptoms in the rest of the dimensions at the beginning and after one month, respectively (P = .016). CONCLUSION: Medical students showed an increase in the presence of severe burnout, as well as emotional exhaustion and depersonalisation after one month of clinical rotation


Subject(s)
Humans , Male , Female , Burnout, Psychological/psychology , Students, Medical/psychology , Clinical Clerkship/methods , Burnout, Psychological/epidemiology , Students, Medical/statistics & numerical data , Brief Psychiatric Rating Scale , Severity of Illness Index
7.
Article in English | MEDLINE | ID: mdl-16782522

ABSTRACT

Malnutrition results from the imbalance of nutrients and energy provided to the body (too low), relative to its needs (too high). These needs increase dramatically with illness. This is certainly the case for patients with gastrointestinal diseases. Sub-optimal dietary intake, metabolic stress, malabsorption and increased nutrient demands, put a patient with gastrointestinal disease, at high-risk for malnutrition. The causes, consequences and assessment and monitoring indicators of malnutrition are reviewed herein.


Subject(s)
Malnutrition/etiology , Body Composition , Digestive System Diseases/complications , Health Status , Humans , Nutrition Assessment , Risk Assessment
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