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https://www.readbyqxmd.com/read/29140322/fourier-processing-with-partially-coherent-fields
#1
Taco D Visser, Govind P Agrawal, Peter W Milonni
We describe how Fourier signal processing techniques can be generalized to partially coherent fields. Using standard coherence theory, we first show that focusing of a partially coherent beam by a lens modifies its coherence properties. We then consider a 4f imaging system composed of two lenses and discuss how spatial filtering in the Fourier plane allows one to tune the coherence properties of the beam. This, in turn, provides control over the beam's directionality, spectrum, and degree of polarization.
November 15, 2017: Optics Letters
https://www.readbyqxmd.com/read/29129383/the-structure-of-a-conserved-domain-of-tamb-reveals-a-hydrophobic-%C3%AE-taco-fold
#2
Inokentijs Josts, Christopher James Stubenrauch, Grishma Vadlamani, Khedidja Mosbahi, Daniel Walker, Trevor Lithgow, Rhys Grinter
The translocation and assembly module (TAM) plays a role in the transport and insertion of proteins into the bacterial outer membrane. TamB, a component of this system spans the periplasmic space to engage with its partner protein TamA. Despite efforts to characterize the TAM, the structure and mechanism of action of TamB remained enigmatic. Here we present the crystal structure of TamB amino acids 963-1,138. This region represents half of the conserved DUF490 domain, the defining feature of TamB. TamB963-1138 consists of a concave, taco-shaped β sheet with a hydrophobic interior...
November 3, 2017: Structure
https://www.readbyqxmd.com/read/29093712/factor-h-related-fhr-1-and-fhr-2-form-homo-and-heterodimers-while-fhr-5-circulates-only-as-homodimer-in-human-plasma
#3
Anna E van Beek, Richard B Pouw, Mieke C Brouwer, Gerard van Mierlo, Judy Geissler, Pleuni Ooijevaar-de Heer, Martin de Boer, Karin van Leeuwen, Theo Rispens, Diana Wouters, Taco W Kuijpers
The complement factor H-related (FHR) proteins are hypothesized to fine-tune the regulatory role of complement factor H (FH) in the alternative pathway of the complement system. Moreover, FHR-1, FHR-2, and FHR-5 have been proposed to be dimers, which further complicates accurate analysis. As FHRs are highly similar among themselves and toward FH, obtaining specific reagents for quantification of serum levels and functional analysis is challenging. In this study, we generated antibodies and developed ELISAs to measure FHR-1, FHR-2, and FHR-5 in serum...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29078134/real-time-visual-biofeedback-during-weight-bearing-improves-therapy-compliance-in-patients-following-lower-extremity-fractures
#4
Marco Raaben, Herman R Holtslag, Luke P H Leenen, Robin Augustine, Taco J Blokhuis
BACKGROUND: Individuals with lower extremity fractures are often instructed on how much weight to bear on the affected extremity. Previous studies have shown limited therapy compliance in weight bearing during rehabilitation. In this study we investigated the effect of real-time visual biofeedback on weight bearing in individuals with lower extremity fractures in two conditions: full weight bearing and touch-down weight bearing. METHODS: 11 participants with full weight bearing and 12 participants with touch-down weight bearing after lower extremity fractures have been measured with an ambulatory biofeedback system...
October 20, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29058354/the-practice-of-diagnosing-and-reporting-transfusion-associated-circulatory-overload-a-national-survey-among-physicians-and-haemovigilance-officers
#5
J J Bosboom, R B Klanderman, A L Peters, E K van de Weerdt, E J Goudswaard, J M Binnekade, J J Zwaginga, E A M Beckers, B F Geerts, M W Hollmann, S S Zeerleder, M van Kraaij, A P Vlaar
OBJECTIVES: This study aims at identifying factors that disciplines consider when diagnosing and reporting transfusion-associated circulatory overload ('TACO'). BACKGROUND: TACO is a clinical diagnosis based mainly on subjective factors. Therefore, TACO could be an underreported complication of blood transfusion. METHODS: A survey was conducted among critical care physicians, anaesthesiologists, haematologists, transfusion medicine physicians and haemovigilance officers using case vignettes and a questionnaire...
October 23, 2017: Transfusion Medicine
https://www.readbyqxmd.com/read/29055419/the-birth-of-isneducation
#6
EDITORIAL
Tejas Desai, Arvind Conjeevaram, Omar Taco, Sanjeev Nair, Sivakumar Sridharan, Rolando Claure-Del Granado, Brendon Lange Neuen, Krishnam Raju Penmatsa, Gopal Basu, Florian Buchkremer, Ernesto Lopez-Almaraz, Fernanda Arce Amare, Xavier Parada, Miguel Cota Vargas, Zoran Paunic, Francesco Iannuzzella, Amit Langote, Hector Madariaga, Sonia Rodriguez Ramirez, Sibel Gokcay Bek, Carlos Orantes, Ananda Chapagain, Garima Aggarwal, Mayuri Trivedi, Sidharth Kumar Sethi
No abstract text is available yet for this article.
November 2017: Kidney International
https://www.readbyqxmd.com/read/29042861/corrigendum-natural-killer-cells-from-patients-with-recombinase-activating-gene-and-non-homologous-end-joining-gene-defects-comprise-a-higher-frequency-of-cd56-bright-nkg2a-cells-and-yet-display-increased-degranulation-and-higher-perforin-content
#7
Kerry Dobbs, Giovanna Tabellini, Enrica Calzoni, Ornella Patrizi, Paula Martinez, Silvia Clara Giliani, Daniele Moratto, Waleed Al-Herz, Caterina Cancrini, Morton Cowan, Jacob Bleesing, Claire Booth, David Buchbinder, Siobhan O Burns, Talal A Chatila, Janet Chou, Vanessa Daza-Cajigal, Lisa M Ott de Bruin, Maite Teresa de la Morena, Gigliola Di Matteo, Andrea Finocchi, Raif Geha, Rakesh K Goyal, Anthony Hayward, Steven Holland, Chiung-Hui Huang, Maria G Kanariou, Alejandra King, Blanka Kaplan, Anastasiya Kleva, Taco W Kuijpers, Bee Wah Lee, Vassilios Lougaris, Michel Massaad, Isabelle Meyts, Megan Morsheimer, Benedicte Neven, Sung-Yun Pai, Nima Parvaneh, Alessandro Plebani, Susan Prockop, Ismail Reisli, Jian Yi Soh, Raz Somech, Troy R Torgerson, Yae-Jean Kim, Jolan E Walter, Andrew R Gennery, Sevgi Keles, John P Manis, Emanuela Marcenaro, Alessandro Moretta, Silvia Parolini, Luigi D Notarangelo
[This corrects the article on p. 798 in vol. 8, PMID: 28769923.].
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29037597/tuning-of-neuronal-interactions-in-the-lateral-ventral-tegmental-area-by-dopamine-sensitivity
#8
Luuk van der Velden, Martin Vinck, Taco R Werkman, Wytse J Wadman
The Ventral Tegmental Area (VTA) contains a considerable population of rhythmically firing dopaminergic neurons, which are influenced by auto-inhibition due to extra-synaptic dopamine release resulting in volume transmission. Using a Multi-Electrode-Array we simultaneously recorded in vitro from multiple VTA dopamine neurons in the rat and studied their mutual interactions. We observed that the dopamine sensitivity (EC50) of the neurons (i.e. the relation between dopamine concentration and firing rate) was quite variable within the recorded population...
October 14, 2017: Neuroscience
https://www.readbyqxmd.com/read/29036130/electromagnetic-diffraction-theory-of-refractive-axicon-lenses
#9
Yangyundou Wang, Shenggang Yan, Ari T Friberg, David Kuebel, Taco D Visser
We study the field that is produced by a paraxial refractive axicon lens. The results from geometrical optics, scalar wave optics, and electromagnetic diffraction theory are compared. In particular, the axial intensity, the on-axis effective wavelength, the transverse intensity, and the far-zone field are examined. A rigorous electromagnetic diffraction analysis shows that the state of polarization of the incident beam strongly affects the transverse intensity distribution, but not the intensity distribution in the far zone...
July 1, 2017: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
https://www.readbyqxmd.com/read/29025378/transfusion-related-acute-lung-injury-trali-and-transfusion-associated-circulatory-overload-taco-in-liver-transplantation-a-case-report-and-focused-review
#10
Natalie K Smith, Sang Kim, Bryan Hill, Andrew Goldberg, Samuel DeMaria, Jeron Zerillo
Liver transplantation (LT) is a complex procedure in a patient with multi-organ system dysfunction and coagulation defects. The surgical procedure involves dissection, major vessel manipulation, and pathophysiologic effects of graft storage and reperfusion. As a result, LT frequently involves significant hemorrhage. Subsequent massive transfusion carries high risk of transfusion-associated complications. Transfusion-related acute lung injury (TRALI) and transfusion-associated circulatory overload (TACO) are the leading causes of transfusion associated mortality...
October 1, 2017: Seminars in Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28986634/contrast-enhanced-mri-findings-of-the-knee-in-healthy-children-establishing-normal-values
#11
Robert Hemke, J Merlijn van den Berg, Charlotte M Nusman, E Charlotte van Gulik, Anouk M Barendregt, Dieneke Schonenberg-Meinema, Koert M Dolman, Taco W Kuijpers, Mario Maas
OBJECTIVES: To define normative standards for the knee in healthy children using contrast-enhanced MRI, focusing on normal synovial membrane thickness. Secondly, presence of joint fluid and bone marrow oedema was evaluated. METHODS: For this study, children without disorders potentially resulting in (accompanying) arthritis were included. Patients underwent clinical assessments, followed by contrast-enhanced MRI. MRI features were evaluated in consensus using the Juvenile Arthritis MRI Scoring (JAMRIS) system...
October 6, 2017: European Radiology
https://www.readbyqxmd.com/read/28966196/transfusion-associated-circulatory-overload-evidence-based-strategies-to-prevent-identify-and-manage-a-serious-adverse-event
#12
Elizabeth A Henneman, Chester Andrzejewski, Anna Gawlinski, Kelley McAfee, Thomas Panaccione, Kimberly Dziel
Transfusion-associated circulatory overload (TACO) is a potentially life-threatening complication of blood transfusion and is associated with increased morbidity, length of stay (hospital and intensive care unit), and hospital costs. Bedside nurses play a key role in the prevention, identification, and reporting of this complication. A common misperception is that the most frequently encountered serious adverse event during transfusion is a hemolytic reaction in a patient who receives ABO-incompatible blood...
October 2017: Critical Care Nurse
https://www.readbyqxmd.com/read/28965826/transfusion-associated-hypoxemia-in-pediatric-patients-with-solid-tumors-after-autologous-peripheral-blood-stem-cell-transplantation
#13
Ryu Yanagisawa, Seiki Abe, Ikuko Fujihara, Kazutoshi Komori, Yoshiaki Kondo, Kazuo Sakashita, Tomohiko Nakamura
BACKGROUND: Although several types of transfusion-related adverse reactions (TRARs) have been reported, one of the most important involves respiratory features during and after blood transfusion. Transfusion-related acute lung injury (TRALI) and transfusion-associated circulatory overload (TACO) are the most severe adverse events following blood transfusion, whereas transfusion-associated dyspnea (TAD) is a less severe respiratory distress. However, there exists little evidence of these factors in pediatric populations...
September 20, 2017: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/28952147/genetic-variation-of-human-neutrophil-fc%C3%AE-receptors-and-sirp%C3%AE-in-antibody-dependent-cellular-cytotoxicity-towards-cancer-cells
#14
Louise W Treffers, Xi Wen Zhao, Joris van der Heijden, Sietse Q Nagelkerke, Dieke J van Rees, Patricia Gonzalez, Judy Geissler, Paul Verkuijlen, Michel van Houdt, Martin de Boer, Taco W Kuijpers, Timo K van den Berg, Hanke L Matlung
The efficacy of cancer therapeutic antibodies varies considerably among patients. Anti-cancer antibodies act through different mechanisms, including antibody-dependent cellular cytotoxicity (ADCC) triggered via Fcγ receptors (FcγR). This phagocyte ADCC can be promoted by interference with CD47-SIRPα interactions, but the magnitude of this enhancement also varies among individuals. Both FcγR and SIRPα display considerable genetic variation, and we investigated whether this explains some of the variability in ADCC...
September 27, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28950220/brain-glucose-metabolism-and-its-relation-to-amyloid-load-in-middle-aged-adults-with-childhood-onset-epilepsy
#15
Juho Joutsa, Juha O Rinne, Mira Karrasch, Bruce Hermann, Jarkko Johansson, Anu Anttinen, Olli Eskola, Semi Helin, Shlomo Shinnar, Matti Sillanpää
Uncomplicated childhood-onset epilepsy is associated with increased brain amyloid load at late middle age, but its possible association with Alzheimer-type neurodegenerative processes is unclear. After 50-year follow-up, 42 childhood onset epilepsy subjects and 45 matched controls were investigated with [(18)F]fluorodeoxyglucose PET. There were no significant differences between the subjects and controls, but higher [(18)F]fluorodeoxyglucose uptake was associated with a higher local amyloid load (as measured with [(11)C]PIB PET) in the prefrontal cortex, parietal cortex, and posterior cingulate/precuneus in subjects but not in controls...
November 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28941753/construct-validity-of-pixel-by-pixel-dce-mri-correlation-with-conventional-mri-scores-in-juvenile-idiopathic-arthritis
#16
Robert Hemke, Charlotte M Nusman, J Merlijn van den Berg, Cristina Lavini, Dieneke Schonenberg-Meinema, Koert M Dolman, Taco W Kuijpers, Mario Maas
OBJECTIVES: To assess the capability of the pixel-by-pixel DCE-MRI time intensity curve (TIC)-shape analysis method in the evaluation of juvenile idiopathic arthritis (JIA) disease activity by correlating DCE-MRI parameters with semi-quantitative conventional-MRI scores of synovitis. METHODS: Clinical, laboratory, and (DCE)-MRI datasets of 85 JIA patients were prospectively obtained. TIC-shapes of each voxel were classified into one of seven predefined color-coded TIC shape categories...
September 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28899854/non-classical-fcgr2c-haplotype-is-associated-with-protection-from-red-blood-cell-allo-immunization-in-sickle-cell-disease
#17
Sanne M Meinderts, Joep W R Sins, Karin Fijnvandraat, Sietse Q Nagelkerke, Judy Geissler, Michael W Tanck, Christine Bruggeman, Bart J Biemond, Anita W Rijneveld, Jean-Louis H Kerkhoffs, Sadaf Pakdaman, Anoosha Habibi, Robin van Bruggen, Taco W Kuijpers, France Pirenne, Timo K van den Berg
Red blood cell (RBC) transfusions are of vital importance in patients with sickle cell disease (SCD). However, a major complication of transfusion therapy is allo-immunization. The low-affinity Fc gamma receptors (FcγRs), expressed on immune cells, are important regulators of antibody responses. Genetic variation in FCGR genes has been associated with various auto- and allo-immune diseases. The aim of this study was to evaluate the association between genetic variation of FCGR and RBC allo-immunization in SCD...
September 12, 2017: Blood
https://www.readbyqxmd.com/read/28889989/the-tnf-receptor-superfamily-nf-%C3%AE%C2%BAb-axis-is-critical-to-maintain-effector-regulatory-t-cells-in-lymphoid-and-non-lymphoid-tissues
#18
Ajithkumar Vasanthakumar, Yang Liao, Peggy Teh, Maria F Pascutti, Anna E Oja, Alexandra L Garnham, Renee Gloury, Jessica C Tempany, Tom Sidwell, Eloy Cuadrado, Paul Tuijnenburg, Taco W Kuijpers, Najoua Lalaoui, Lisa A Mielke, Vanessa L Bryant, Philip D Hodgkin, John Silke, Gordon K Smyth, Martijn A Nolte, Wei Shi, Axel Kallies
After exiting the thymus, Foxp3(+) regulatory T (Treg) cells undergo further differentiation in the periphery, resulting in the generation of mature, fully suppressive effector (e)Treg cells in a process dependent on TCR signaling and the transcription factor IRF4. Here, we show that tumor necrosis factor receptor superfamily (TNFRSF) signaling plays a crucial role in the development and maintenance of eTreg cells. TNFRSF signaling activated the NF-κB transcription factor RelA, which was required to maintain eTreg cells in lymphoid and non-lymphoid tissues, including RORγt(+) Treg cells in the small intestine...
September 19, 2017: Cell Reports
https://www.readbyqxmd.com/read/28886419/mutation-in-an-exonic-splicing-enhancer-site-causing-chronic-granulomatous-disease
#19
Martin de Boer, Karin van Leeuwen, Judy Geissler, Bernd H Belohradsky, Taco W Kuijpers, Dirk Roos
In a male patient suffering from X-linked chronic granulomatous disease (CGD) we found a c.389G>T mutation in exon 5 of the CYBB gene. We have analyzed why 95% of the transcripts of this gene lacked exon 5, leading to a frameshift and premature termination codon. The mutation was located in a region comprising three putative exonic splicing enhancer binding sites, for SRSF1, SRFS2 and SRFS6, according to the ESEfinder Tool (http://rulai.cshl.edu/cgi-bin/tools/ESE3/esefinder.cgi). With the Analyser Splice Tool we calculated the probability of skipping of exon 5 in CYBB mRNA, and by means of Sroogle the number of putative binding motifs for splicing enhancer and splicing silencer proteins (http://astlab...
July 2017: Blood Cells, Molecules & Diseases
https://www.readbyqxmd.com/read/28868147/intra-body-microwave-communication-through-adipose-tissue
#20
Noor Badariah Asan, Daniel Noreland, Emadeldeen Hassan, Syaiful Redzwan Mohd Shah, Anders Rydberg, Taco J Blokhuis, Per-Ola Carlsson, Thiemo Voigt, Robin Augustine
The human body can act as a medium for the transmission of electromagnetic waves in the wireless body sensor networks context. However, there are transmission losses in biological tissues due to the presence of water and salts. This Letter focuses on lateral intra-body microwave communication through different biological tissue layers and demonstrates the effect of the tissue thicknesses by comparing signal coupling in the channel. For this work, the authors utilise the R-band frequencies since it overlaps the industrial, scientific and medical radio (ISM) band...
August 2017: Healthcare Technology Letters
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