2,341 research outputs found
Women in radiology: gender diversity is not a metric-it is a tool for excellence.
Women in Focus: Be Inspired was a unique programme held at the 2019 European Congress of Radiology that was structured to address a range of topics related to gender and healthcare, including leadership, mentoring and the generational progression of women in medicine. In most countries, women constitute substantially fewer than half of radiologists in academia or private practice despite frequently accounting for at least half of medical school enrolees. Furthermore, the proportion of women decreases at higher academic ranks and levels of leadership, a phenomenon which has been referred to as a "leaky pipeline". Gender diversity in the radiologic workplace, including in academic and leadership positions, is important for the present and future success of the field. It is a tool for excellence that helps to optimize patient care and research; moreover, it is essential to overcome the current shortage of radiologists. This article reviews the current state of gender diversity in academic and leadership positions in radiology internationally and explores a wide range of potential reasons for gender disparities, including the lack of role models and mentorship, unconscious bias and generational changes in attitudes about the desirability of leadership positions. Strategies for both individuals and institutions to proactively increase the representation of women in academic and leadership positions are suggested. KEY POINTS: • Gender-diverse teams perform better. Thus, gender diversity throughout the radiologic workplace, including in leadership positions, is important for the current and future success of the field. • Though women now make up roughly half of medical students, they remain underrepresented among radiology trainees, faculty and leaders. • Factors leading to the gender gap in academia and leadership positions in Radiology include a lack of role models and mentors, unconscious biases, other societal barriers and generational changes
Time takes space: selective effects of multitasking on concurrent spatial processing.
Many everyday activities require coordination and monitoring of complex relations of future goals and deadlines. Cognitive offloading may provide an efficient strategy for reducing control demands by representing future goals and deadlines as a pattern of spatial relations. We tested the hypothesis that multiple-task monitoring involves time-to-space transformational processes, and that these spatial effects are selective with greater demands on coordinate (metric) than categorical (nonmetric) spatial relation processing. Participants completed a multitasking session in which they monitored four series of deadlines, running on different time scales, while making concurrent coordinate or categorical spatial judgments. We expected and found that multitasking taxes concurrent coordinate,
but not categorical, spatial processing. Furthermore, males showed a better multitasking performance than females. These findings provide novel experimental evidence for the hypothesis that efficient multitasking involves metric relational processing
Recent trends and future directions for lung cancer mortality in Europe
Lung cancer mortality patterns throughout Europe are very heterogeneous and largely reflect past smoking habits. In order to clarify the changing patterns of lung cancer in Europe we have plotted the overall lung cancer trends among men and women for 20 countries from 1950 up to1998. Furthermore, using a Bayesian age-period-cohort approach, we have calculated 5 year projections of lung cancer rate up to 2003. Finally, we make some comments on probable future trends by analysing recent trends in adults aged <55 years. Lung cancer mortality rates up to age 75 years portray a general trend of decreasing lung cancer rates among men and increasing lung cancer rates among women. Exceptions to this decrease among men include Hungary where not only are current mortality rates much higher than previously observed in any other country (at 76.7 out of 100 000 in 1998) but they are projected to increase further in the short term. Rates among adults aged <55 years have recently peaked, indicating that overall rates are likely to peak in the next decade. Among women, rapid increases have been observed in Denmark, Netherlands, Hungary, Ireland and UK. Whereas Ireland and UK rates have started to decrease and are projected to continue falling, rates in the other three countries are projected to increase further. Trends in women aged <55 years indicate that rates in Danish women will peak in the next decade, whereas lung cancer rates among Dutch women are likely to continue increasing. Rates in Hungarian women are likely to increase and will surpass the current high rate observed in Denmark
Blok zatokowo-przedsionkowy typu periodyki Wenckebacha jako niezależny wskaźnik prognostyczny wystąpienia wysokiego stopnia zatokowo-przedsionkowego bloku wyjścia
Wstęp: W przedstawianym badaniu, obejmującym pacjentów z blokiem zatokowo-przedsionkowym
drugiego stopnia typu periodyki Wenckebacha (dalej: blok Wenckebacha), oceniano prawdopodobieństwo
wystąpienia bardziej zaawansowanego bloku zatokowo-przedsionkowego. Dane
na temat klinicznego znaczenia bloku Wenckebacha są ograniczone. Nie wiadomo, czy pozwala
on przewidywać wystąpienie bardziej zaawansowanego bloku zatokowo-przedsionkowego.
Metody: Przeanalizowano występowanie bloku Wenckebacha w standardowych elektrokardiogramach
(EKG) u 412 pacjentów z objawami klinicznymi, które mogły być związane
z zaburzeniami rytmu serca. Blok Wenckebacha stwierdzono w 29 spośród początkowych
EKG. Głównym punktem końcowym ocenianym w czasie obserwacji prowadzonej przez 62 ± 35 miesięcy było wystąpienie pierwszego epizodu bloku zatokowo-przedsionkowego drugiego
stopnia typu II. Dodatkowym ocenianym punktem końcowym było wystąpienie pauzy zatokowej
trwającej dłużej niż 3 s lub bloku zatokowo-przedsionkowego drugiego stopnia typu II.
Wyniki: Spośród 29 pacjentów, u których początkowo stwierdzano blok Wenckebacha, wyższego
stopnia blok zatokowo-przedsionkowy wystąpił u 6 osób (20,7%), a u 9 chorych (31%)
stwierdzono pauzę zatokową lub blok zatokowo-przedsionkowy drugiego stopnia typu II. Wśród
383 pacjentów, u których nie zaobserwowano bloku Wenckebacha w początkowym EKG,
wyższego stopnia blok zatokowo-przedsionkowy wystąpił w czasie obserwacji u 14 osób (3,7%),
a u 28 pacjentów (7,3%) stwierdzono pauzę zatokową lub blok zatokowo-przedsionkowy drugiego
stopnia typu II. W wielozmiennej analizie Coxa blok Wenckebacha był niezależnym
wskaźnikiem prognostycznym wystąpienia bloku zatokowo-przedsionkowego drugiego stopnia
typu II (HR 3,72; 95% CI 1,39-9,99) oraz pauzy zatokowej lub bloku zatokowo-przedsionkowego
drugiego stopnia typu II (HR 3,01; 95% CI 1,37-6,58).
Wnioski: U pacjentów z objawami klinicznymi, które mogą wynikać z zaburzeń rytmu serca,
obecność bloku Wenckebacha w standardowym EKG wskazuje na duże prawdopodobieństwo
wystąpienia bardziej zaawansowanego bloku zatokowo-przedsionkowego. (Folia Cardiologica
Excerpta 2007; 2: 598-603)
16th IHIW: Immunogenetics of Aging
Ageing is a process characterised by progressive loss of
function in multiple different organ systems, such as
the nervous, endocrine and immune systems. Current
data showing that ageing processes may be associated
with alterations in the immune system suggest that
some of the genetic determinants of senescence might
be polymorphic genes that regulate immune responses.
The ‘Immunogenetics of Aging’ programme was a
component introduced in the 14th International HLA
and Immunogenetics Workshop (IHIWS) and developed
further within the 15th and 16th. The aim of this
component was to determine the contribution of
immune genes to successful ageing and an increased
capacity to reach the extreme limits of lifespan. Within
the 16th IHIWS, new populations were included, and
the number of samples analysed was increased. Analysis
was focused on innate immunity genes (KIR and
MBL2) and their correlation with CMV serostatus.
Collaborative studies suggested that both activating
and inhibitory KIR and functionally relevant MBL2
haplotypes are important factors for control of CMV
infection in the elderly and therefore for chronic
low-grade inflammation. Results showed that these
genes might be predictive biomarkers in ageing and longevity. Prevalence of MBL2 haplotypes determining
absence of the protein (LYPB, LYQC and HYPD) was
observed in elderly people with a higher CMV antibody
titre. The high CMV titre was also associated
with a decreased frequency of the activatory KIR2DS5
and A1B10 haplotypes in elderly. Due to the role of
KIR and low or deficient MBL haplotypes in viral
infections, these genetic markers could be considered
as indicators of a need for CMV prophylaxis at younger
age and therefore increased probability of longer
lifespan
Time decay of the remanent magnetization in the spin glass model at T=0
Using the zero-temperature Metropolis dynamics, the time decay of the
remanent magnetization in the Edward-Anderson spin glass model with a
uniform random distribution of ferromagnetic and antiferromagnetic interactions
has been investigated. Starting from the saturation, the magnetization per spin
reveals a slow decrease with time, which can be approximated by a power
law:, . Moreover, its
relaxation does not lead it into one of the ground states, and therefore the
system is trapped in metastable isoenergetic microstates remaining magnetized.
Such behaviour is discussed in terms of a random walk the system performs on
its available configuration space.Comment: 9 pages, 3 figure
Women in radiology: gender diversity is not a metric—it is a tool for excellence
Abstract: Women in Focus: Be Inspired was a unique programme held at the 2019 European Congress of Radiology that was structured to address a range of topics related to gender and healthcare, including leadership, mentoring and the generational progression of women in medicine. In most countries, women constitute substantially fewer than half of radiologists in academia or private practice despite frequently accounting for at least half of medical school enrolees. Furthermore, the proportion of women decreases at higher academic ranks and levels of leadership, a phenomenon which has been referred to as a “leaky pipeline”. Gender diversity in the radiologic workplace, including in academic and leadership positions, is important for the present and future success of the field. It is a tool for excellence that helps to optimize patient care and research; moreover, it is essential to overcome the current shortage of radiologists. This article reviews the current state of gender diversity in academic and leadership positions in radiology internationally and explores a wide range of potential reasons for gender disparities, including the lack of role models and mentorship, unconscious bias and generational changes in attitudes about the desirability of leadership positions. Strategies for both individuals and institutions to proactively increase the representation of women in academic and leadership positions are suggested. Key Points: • Gender-diverse teams perform better. Thus, gender diversity throughout the radiologic workplace, including in leadership positions, is important for the current and future success of the field. • Though women now make up roughly half of medical students, they remain underrepresented among radiology trainees, faculty and leaders. • Factors leading to the gender gap in academia and leadership positions in Radiology include a lack of role models and mentors, unconscious biases, other societal barriers and generational changes
Myopia disease mouse models: a missense point mutation (S673G) and a protein-truncating mutation of the Zfp644 mimic human disease phenotype.
Zinc finger 644 (Zfp644 in mouse, ZNF644 in human) gene is a transcription factor whose mutation S672G is considered a potential genetic factor of inherited high myopia. ZNF644 interacts with G9a/GLP complex, which functions as a H3K9 methyltransferase to silence transcription. In this study, we generated mouse models to unravel the mechanisms leading to symptoms associated with high myopia. Employing TALEN technology, two mice mutants were generated, either with the disease-carrying mutation (Zfp644 S673G ) or with a truncated form of Zfp644 (Zfp644 Δ8 ). Eye morphology and visual functions were analysed in both mutants, revealing a significant difference in a vitreous chamber depth and lens diameter, however the physiological function of retina was preserved as found under the high-myopia conditions. Our findings prove that ZNF644/Zfp644 is involved in the development of high-myopia, indicating that mutations such as, Zfp644 S673G and Zfp644 Δ8 are causative for changes connected with the disease. The developed models represent a valuable tool to investigate the molecular basis of myopia pathogenesis and its potential treatment
Design and Bolometer Characterization of the SPT-3G First-year Focal Plane
During the austral summer of 2016-17, the third-generation camera, SPT-3G,
was installed on the South Pole Telescope, increasing the detector count in the
focal plane by an order of magnitude relative to the previous generation.
Designed to map the polarization of the cosmic microwave background, SPT-3G
contains ten 6-in-hexagonal modules of detectors, each with 269 trichroic and
dual-polarization pixels, read out using 68x frequency-domain multiplexing.
Here we discuss design, assembly, and layout of the modules, as well as early
performance characterization of the first-year array, including yield and
detector properties.Comment: Conference proceeding for Low Temperature Detectors 2017. Accepted
for publication: 27 August 201
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