4,908 research outputs found
PadrÔes de variação genética em loci sob selecção na abelha ibérica: comparação da selecção balanceada e direccional
A PenĂnsula IbĂ©rica tem sido reconhecida como um "hotspot" de diversidade c
endemismo para diversas espécies quer animais quer vegetais. Em parte esta grande
diversidade encontrada na PenĂnsula IbĂ©rica deve-se ao flicto de este local ter sido
utilizado como refĂșgio por diferentes espĂ©cies durante as glaciaçÎes A abelha Ă© um dos
muitos casos onde este processo aconteceu. Na verdade, a PenĂnsula IbĂ©rica Ă© umas das
regiÔes da Europa onde esta espécie apresenta uma maior diversidade c complexidade
genĂ©tica. A abelha ibĂ©rica que estĂĄ distribuĂda pela PenĂnsula IbĂ©rica Ă© o fruto de uma
hibridação natural entre a linhagem Africana c a linhagem da Europa ocidental. O
estudo de zonas hĂbridas tem sido muito importante para compreender os processos
evolutivos que levaram Ă complexidade genĂ©tica tĂŁo caracterĂstica dos refĂșgios
O objectivo deste trabalho Ă© fazer uma abordagem inicial para perceber como Ă©
que os diferentes tipos de selecção (balanceadora e direccional) influenciam a
diversidade genĂ©tica das abelhas na PenĂnsula IbĂ©rica e tentar perceber qual o papel da
selecção na divergĂȘncia adaptativa das populaçÔes. Para tal foram calculadas algumas
cstatisticas sumårias e também toram utilizados diversos sothvares que implementam
algoritmos Bayesianos de forma a verificar que estrutura Ă© captada ao utilizar-se as
regiÔes do genoma sob diferentes tipos de selecção (balanceadora ou direccional). No
total foram detectados 22 loci sob selecção usando o Bayescan, 9 dos quais
apresentavam aparentam estar sob de uma selecção balanceada c 13 sob selecção
direccional. Neste trabalho Ă© representado o padrĂŁo obtido utilizado software
"STRUCTURE
Patrones de diversidad neutral y adaptativa de la abeja Ibérica
La penĂnsula ibĂ©rica es conocida como un importante foco (hotspot) de
diversidad y endemismos de numerosas especies de plantas y animales
representando por ello una de las regiones prioritarias por la
conservaciĂłn en Europa. Varios factores geomorfolĂłgicos y ambientales
contribuyen a esta riqueza, concretamente: la localizaciĂłn geogrĂĄfica en el extremo sudoeste de Europa, el aislamiento en relaciĂłn al
resto de Europa por la barrera geogrĂĄfica de los Pirineos, la complejidad
fisiogrĂĄfica y la diversidad climĂĄtica resultante de la heterogeneidad
fisiogrĂĄfica y de las distintas influencias del AtlĂĄntico y del MediterrĂĄneo.
Una conjugaciĂłn de estos factores hacen de la penĂnsula
ibérica no solo uno cuna de diferenciación y especiación sino también
un importante refugio que albergĂł durante varios periodos glaciales
del Pleistoceno muchas de las especies de plantos y animales que hoy
colonizan el Norte y el Centra de Europa {Hewitt, 1999).Fundação para a CiĂȘncia e Tecnologi
Management of allergic rhinitis symptoms in the pharmacy Pocket guide 2022
Allergic rhinitis (AR) management requires a coordinated effort from healthcare providers and patients. Pharmacists are key members of these integrated care pathways resolving medication-related problems, optimizing regimens, improving adherence and recommending therapies while establishing liaisons between patients and physicians.Allergic Rhinitis and its Impact on Asthma (ARIA) first published a reference document on the pharmacist's role in allergic rhinitis management in 2004. Several guidelines were developed over the past 20 years improving the care of allergic rhinitis patients through an evidence-based, integrated care approach.This ARIA/EAACI/FIP Position Paper is based on the latest ARIA in the Pharmacy guidelines and provides: (a) a structured approach to pharmacists identifying people with AR and/or allergic conjunctivitis as well as those at risk of poor disease control; (b) an evidence-based clinical decision support tool for optimising the management of allergic rhinitis in the community pharmacy; and (c) a framework of referral to the physician.This document is not intended to be a mandatory standard of care but is provided as a basis for pharmacists and their staff to develop relevant local standards of care for their patients, within their local practice environment. Pharmacy care varies between countries, and the guide should be adapted to the local situation.© 2022 The Authors. Clinical and Translational Allergy published by John Wiley & Sons Ltd on behalf of European Academy of Allergy and Clinical Immunology
Effects of Rosmarinus officinalis essential oil on germ tube formation by Candida albicans isolated from denture wearers
Scientific production on workplace bullying/harassment in dissertations and theses in the Brazilian scenario
A large outbreak of Legionnairesâ Disease in an industrial town in Portugal
Background
We describe the investigation and control of an outbreak of Legionnairesâ disease in Portugal in October, November and December 2014.
Methods
Confirmed cases were individuals with pneumonia, laboratory evidence of Legionella pneumophila serogroup 1 and exposure, by residence, occupational or leisure to the affected municipalities. 49 possible sources were reduced to four potential sources, all industries with wet cooling system, following risk assessment. We geo-referenced casesâ residences and the location of cooling towers defining four study areas 10 km buffer centered on each cooling tower system. We compared the number of cases with expected numbers, calculated from the outbreak's attack rates applied to 2011 census population. Using Stonesâ Test, we tested observed to expected ratios for decline in risk, with distance up to 10 km four directions. Isolates of Legionella pneumophila were compared using molecular methods.
Results
We identified 403 cases, 377 of which were confirmed, 14 patients died. Patients became ill between 14 October and 2 December. A NE wind and thermal inversion were recorded during the estimated period of exposure. Disease risk was highest in people living south west from all of the industries identified and decreased with distance (p < 0.001). 71 clinical isolates demonstrated an identical SBT profile to an isolate from a cooling tower. Whole genome sequencing identified an unusual L. pneumophila subsp. fraseri serogroup 1 as the outbreak causative strain, and confirmed isolatesâ relatedness.
Conclusions
Industrial wet cooling systems, bacteria with enhanced survival characteristics and a combination of climatic conditions contributed to the second largest outbreak of Legionnairesâ disease recorded internationally.info:eu-repo/semantics/publishedVersio
Vascular Smooth Muscle Cell Stiffness and Adhesion to Collagen I Modified by Vasoactive Agonists
In vascular smooth muscle cells (VSMCs) integrin-mediated adhesion to extracellular
matrix (ECM) proteins play important roles in sustaining vascular tone and resistance.
The main goal of this study was to determine whether VSMCs adhesion to type I collagen
(COL-I) was altered in parallel with the changes in the VSMCs contractile state induced by
vasoconstrictors and vasodilators. VSMCs were isolated from rat cremaster skeletal muscle
arterioles and maintained in primary culture without passage. Cell adhesion and cell E-modulus
were assessed using atomic force microscopy (AFM) by repetitive nano-indentation of
the AFM probe on the cell surface at 0.1 Hz sampling frequency and 3200 nm Z-piezo travelling
distance (approach and retraction). AFM probes were tipped with a 5 ÎŒm diameter
microbead functionalized with COL-I (1mg\ml). Results showed that the vasoconstrictor angiotensin
II (ANG-II; 10â6
) significantly increased (p<0.05) VSMC E-modulus and adhesion
probability to COL-I by approximately 35% and 33%, respectively. In contrast, the vasodilator
adenosine (ADO; 10â4
) significantly decreased (p<0.05) VSMC E-modulus and adhesion
probability by approximately â33% and â17%, respectively. Similarly, the NO donor
(PANOate, 10â6 M), a potent vasodilator, also significantly decreased (p<0.05) the VSMC
E-modulus and COL-I adhesion probability by â38% and â35%, respectively. These observations
support the hypothesis that integrin-mediated VSMC adhesion to the ECM protein
COL-I is dynamically regulated in parallel with VSMC contractile activation. These data suggest
that the signal transduction pathways modulating VSMC contractile activation and relaxation,
in addition to ECM adhesion, interact during regulation of contractile state
Brazil in the Era of Fascism: The âNew Stateâ of GetĂșlio Vargas
The New State established in Brazil by GetĂșlio Vargas (1937â1945) is the most important case of the institutionalisation of a dictatorship of the fascism era in Latin America. During this time, an impressive spectrum of authoritarian regimes was established, some of which were very instable and poorly institutionalised, while others were more consolidated. Roger Griffin coined the concept of para-fascism for some of them, and the âNew Stateâ of GetĂșlio Vargas in Brazil is a paradigmatic case. In this essay, we analyse the processes of institutional reform in 1930s Brazil paying particular attention to how domestic political actors look at institutional models of fascism and corporatism.info:eu-repo/semantics/publishedVersio
Resilience and death: the nursing professional in the care of children and adolescents with life-limiting illnesses
Observation of associated near-side and away-side long-range correlations in âsNN=5.02ââTeV proton-lead collisions with the ATLAS detector
Two-particle correlations in relative azimuthal angle (ÎÏ) and pseudorapidity (Îη) are measured in âsNN=5.02ââTeV p+Pb collisions using the ATLAS detector at the LHC. The measurements are performed using approximately 1ââÎŒb-1 of data as a function of transverse momentum (pT) and the transverse energy (ÎŁETPb) summed over 3.1<η<4.9 in the direction of the Pb beam. The correlation function, constructed from charged particles, exhibits a long-range (2<|Îη|<5) ânear-sideâ (ÎÏâŒ0) correlation that grows rapidly with increasing ÎŁETPb. A long-range âaway-sideâ (ÎÏâŒÏ) correlation, obtained by subtracting the expected contributions from recoiling dijets and other sources estimated using events with small ÎŁETPb, is found to match the near-side correlation in magnitude, shape (in Îη and ÎÏ) and ÎŁETPb dependence. The resultant ÎÏ correlation is approximately symmetric about Ï/2, and is consistent with a dominant cosâĄ2ÎÏ modulation for all ÎŁETPb ranges and particle pT
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