51 research outputs found

    Identification of Chlamydia trachomatis Antigens Recognized by T Cells From Highly Exposed Women Who Limit or Resist Genital Tract Infection

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    Background. Natural infection induces partial immunity to Chlamydia trachomatis. Identification of chlamydial antigens that induce interferon γ (IFN-) secretion by T cells from immune women could advance vaccine development

    Impact of COVID-19 on cardiovascular testing in the United States versus the rest of the world

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    Objectives: This study sought to quantify and compare the decline in volumes of cardiovascular procedures between the United States and non-US institutions during the early phase of the coronavirus disease-2019 (COVID-19) pandemic. Background: The COVID-19 pandemic has disrupted the care of many non-COVID-19 illnesses. Reductions in diagnostic cardiovascular testing around the world have led to concerns over the implications of reduced testing for cardiovascular disease (CVD) morbidity and mortality. Methods: Data were submitted to the INCAPS-COVID (International Atomic Energy Agency Non-Invasive Cardiology Protocols Study of COVID-19), a multinational registry comprising 909 institutions in 108 countries (including 155 facilities in 40 U.S. states), assessing the impact of the COVID-19 pandemic on volumes of diagnostic cardiovascular procedures. Data were obtained for April 2020 and compared with volumes of baseline procedures from March 2019. We compared laboratory characteristics, practices, and procedure volumes between U.S. and non-U.S. facilities and between U.S. geographic regions and identified factors associated with volume reduction in the United States. Results: Reductions in the volumes of procedures in the United States were similar to those in non-U.S. facilities (68% vs. 63%, respectively; p = 0.237), although U.S. facilities reported greater reductions in invasive coronary angiography (69% vs. 53%, respectively; p < 0.001). Significantly more U.S. facilities reported increased use of telehealth and patient screening measures than non-U.S. facilities, such as temperature checks, symptom screenings, and COVID-19 testing. Reductions in volumes of procedures differed between U.S. regions, with larger declines observed in the Northeast (76%) and Midwest (74%) than in the South (62%) and West (44%). Prevalence of COVID-19, staff redeployments, outpatient centers, and urban centers were associated with greater reductions in volume in U.S. facilities in a multivariable analysis. Conclusions: We observed marked reductions in U.S. cardiovascular testing in the early phase of the pandemic and significant variability between U.S. regions. The association between reductions of volumes and COVID-19 prevalence in the United States highlighted the need for proactive efforts to maintain access to cardiovascular testing in areas most affected by outbreaks of COVID-19 infection

    Distribution and Cconnection to other Plant-Communities of Genista radiata (L.) Scop in the South Tyrol (Italy)

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    Es werden die Genista radiata-Bestände an der Mendel in Südtirol (Italien) beschrieben und ihr Gesellschaftsanschluß diskutiert. Das Genisto-Festucetum alpestris Peer 83 besidelt steile südexponierte Kalkhänge der hochmontanen und subalpinen Stufe und ersetzt z.T. den Zwergstrauchgürtel mit Pinus mugo. Ähnlich zusammengesetzt ist das Genisto-Festucetum alpestris pinetosum Peer 83, das in den ¡lockeren Erika-Kiefernwäldern auftritt und bis in die tiefmontane Stufe hinunterreicht. Keinerlei syntaxonomische Bedeutung besitzt Genista radiata in den thermophilen Buschwaldgesellschaften, in denen die Pflanze lediglich eine Variante zum Orno-Ostryetum seslerietosum Peer 81 darstellt und speziell in der Saumzone anzutreffen ist. Auch in den Lärchenwiesen der Kammlagen kommt Genista radiata nur sporadisch vor. Sie ist hier mit dem Festucetum nigrescentis laricetosum subass. prov. verzahnt.Istražene su vegetacijske sastojine vrste Genista radiata u južnom Tirolu i razmatrana njihova fitocenološka pripadnost. Asocijacija Genisto-Festucetum alpestris Peer 83 nastava strme, južne vapnenačke obronke visokobrdskog i subalpskog pojasa. Subasocijacija Genisto-Festucetum alpestris pinetosum Peer 83 dolazi u rijetkim borovim šumama s crnjušom i spušta se do u niži brdski pojas. Termofilne niske šume, u kojima Genista radiata nema posebno sintaksonomsko značenje, označene su samo kao varijanta zajednice Orno-Ostryetum seslerietosum Peer 81. Genista radiata dolazi također na travnjacima s arišem, ali samo sporadično i to u mješavini sa zajednicom Festucetum nigrescentis laricetosnm subass. prov.The Genista radiata-communities of the Mendel in the South Tyrol (Italy) are described and their connection to other plant-communities is discussed. Genisto-Festucetum alpestris Peer 83 settles on steep, south- exposed colcareous slopes of high-mountain and subalpine altitudes and replaces particularly the dwarf-shrub-belt with Firms mugo. Similar contents aire found in Genisto-F estucetum alpestris pinetasum Peer 83, which occurs in undensed Erico-Pinetum-communities and reaches down to the low-mountain-altitude. In the thermophilic bush-communities, in which Genista radiata is found only as a variant of Orneto-Ostryetum seslerie- tosum (Peer 81), the plant has no syntaxonomic importance. Genista radiata especially is found in the edge-zone. In the grassland of the larch- communities of the ridges Genista radiata appears only sporadically. Here the plant appeals in Festucetum nigrescentis laricetosum subass. prov

    BACH2 immunodeficiency illustrates an association between super-enhancers and haploinsufficiency.

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    The transcriptional programs that guide lymphocyte differentiation depend on the precise expression and timing of transcription factors (TFs). The TF BACH2 is essential for T and B lymphocytes and is associated with an archetypal super-enhancer (SE). Single-nucleotide variants in the BACH2 locus are associated with several autoimmune diseases, but BACH2 mutations that cause Mendelian monogenic primary immunodeficiency have not previously been identified. Here we describe a syndrome of BACH2-related immunodeficiency and autoimmunity (BRIDA) that results from BACH2 haploinsufficiency. Affected subjects had lymphocyte-maturation defects that caused immunoglobulin deficiency and intestinal inflammation. The mutations disrupted protein stability by interfering with homodimerization or by causing aggregation. We observed analogous lymphocyte defects in Bach2-heterozygous mice. More generally, we observed that genes that cause monogenic haploinsufficient diseases were substantially enriched for TFs and SE architecture. These findings reveal a previously unrecognized feature of SE architecture in Mendelian diseases of immunity: heterozygous mutations in SE-regulated genes identified by whole-exome/genome sequencing may have greater significance than previously recognized

    Animal-borne telemetry: An integral component of the ocean observing toolkit

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    Animal telemetry is a powerful tool for observing marine animals and the physical environments that they inhabit, from coastal and continental shelf ecosystems to polar seas and open oceans. Satellite-linked biologgers and networks of acoustic receivers allow animals to be reliably monitored over scales of tens of meters to thousands of kilometers, giving insight into their habitat use, home range size, the phenology of migratory patterns and the biotic and abiotic factors that drive their distributions. Furthermore, physical environmental variables can be collected using animals as autonomous sampling platforms, increasing spatial and temporal coverage of global oceanographic observation systems. The use of animal telemetry, therefore, has the capacity to provide measures from a suite of essential ocean variables (EOVs) for improved monitoring of Earth's oceans. Here we outline the design features of animal telemetry systems, describe current applications and their benefits and challenges, and discuss future directions. We describe new analytical techniques that improve our ability to not only quantify animal movements but to also provide a powerful framework for comparative studies across taxa. We discuss the application of animal telemetry and its capacity to collect biotic and abiotic data, how the data collected can be incorporated into ocean observing systems, and the role these data can play in improved ocean management

    Ten years of Nature Reviews Neuroscience: insights from the highly cited

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    Lucid dream induction with sleep EEG wearables

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    Lucid dreaming (LD) is defined as a state of awareness of the ongoing dream state while sleeping. Lucid dreaming is a rather rare phenomenon; however, it can be learned and trained, and various studies have proposed different techniques to ‘induce’ lucid dreams. Nonetheless, these studies either lacked physiological measurements and were therefore merely limited to self-reported questionnaires, or in the case of including physiological measurements, their generalizability was restricted mainly due to the exclusive recruitment of ‘experienced’ lucid dreamers. Only a few studies attempted to reliably induce lucid dreams in ‘naive’ participants, but they involved small sample sizes and have not yet been replicated. To overcome these limitations, we designed a multi-center study including three laboratories, in the Netherlands, Canada, and Italy respectively, with the aim of recruiting 60 participants overall (i.e. 20 participants per laboratory). This is the largest sample size for a lucid dreaming induction study with physiological measurements to date. We will test the applicability of a combination of two lucid dreaming induction techniques: targeted lucidity reactivation (TLR) and sense-initiated lucid dream (SSILD), which will be implemented by presenting perceptual cues (visual, auditory, and tactile) before and during REM sleep. To do so, we will employ minimal measurement modalities, i.e., an EEG headband and three additional chin EMG electrodes. We will also use this dataset to develop and validate the first open-source dream engineering toolbox, Dreamento (DREAM ENgineering TOolbox, Esfahani et al., 2022). Participants will visit the laboratory three times throughout an approximately two week period, including an intake session and two morning naps (stimulation and control, in counterbalanced order across subjects). During the intake session, participants will receive information about the study and complete preliminary screening questionnaires. Then, participants will complete daily dream diaries for the following two weeks. The morning nap sessions will be held at least one and two weeks after the intake session, respectively. Both nap sessions consist of the same cognitive training procedure during wakefulness, but differ in terms of the sensory stimulation procedure during sleep. Participants will receive sensory cues upon detection of REM sleep during the stimulation session, but not during the control session. They will be instructed to signal their lucidity using a predefined intentional eye movement pattern (left-right-left-right, LRLR) and will be awakened once the REM period ends to report any subjective experience and complete a lucidity questionnaire

    Not All Singing and Dancing: Padstow, Folk Festivals and Belonging

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    It is well established that while folk festivals appear to illustrate an ancient, bucolic past, they are contemporary markers of history and belonging. Cornish folk festivals can provide a valuable illustration of this. The Padstow May Day celebration, the Obby Oss, epitomises this sense of timelessness and spontaneous celebration. It attracts numerous tourists keen to join the spectacle of dancing and singing, and is seen by the Cornish tourist industry as the stellar event of the festival year. In contrast, Padstow's mid-winter Mummers celebration is downplayed by county officials. This event sees participants dance, drum and sing around the town, wearing black face-paint, with a repertoire that includes Minstrel ditties, while critical questions have been asked at regional and national levels. Both raise questions about the ways in which belonging is negotiated as a critical element in the Cornish festival landscape
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