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https://www.readbyqxmd.com/read/29047983/simplified-paraboloid-phase-model-based-phase-tracker-for-demodulation-of-a-single-complex-fringe
#1
A He, B Deepan, C Quan
A regularized phase tracker (RPT) is an effective method for demodulation of single closed-fringe patterns. However, lengthy calculation time, specially designed scanning strategy, and sign-ambiguity problems caused by noise and saddle points reduce its effectiveness, especially for demodulating large and complex fringe patterns. In this paper, a simplified paraboloid phase model-based regularized phase tracker (SPRPT) is proposed. In SPRPT, first and second phase derivatives are pre-determined by the density-direction-combined method and discrete higher-order demodulation algorithm, respectively...
September 1, 2017: Applied Optics
https://www.readbyqxmd.com/read/29043021/genetic-wealth-population-health-major-histocompatibility-complex-variation-in-captive-and-wild-ring-tailed-lemurs-lemur-catta
#2
Kathleen E Grogan, Michelle L Sauther, Frank P Cuozzo, Christine M Drea
Across species, diversity at the major histocompatibility complex (MHC) is critical to individual disease resistance and, hence, to population health; however, MHC diversity can be reduced in small, fragmented, or isolated populations. Given the need for comparative studies of functional genetic diversity, we investigated whether MHC diversity differs between populations which are open, that is experiencing gene flow, versus populations which are closed, that is isolated from other populations. Using the endangered ring-tailed lemur (Lemur catta) as a model, we compared two populations under long-term study: a relatively "open," wild population (n = 180) derived from Bezà Mahafaly Special Reserve, Madagascar (2003-2013) and a "closed," captive population (n = 121) derived from the Duke Lemur Center (DLC, 1980-2013) and from the Indianapolis and Cincinnati Zoos (2012)...
October 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/29041440/dispersion-controlling-meta-lens-at-visible-frequency
#3
Ke Li, Yinghui Guo, Mingbo Pu, Xiong Li, Xiaoliang Ma, Zeyu Zhao, Xiangang Luo
Dispersion management is crucial in constructing spectrometers, superprisms, and achromatic lens systems. Unfortunately, the dispersion of natural materials is determined by the molecular energy levels with limited tunability, and thus conventional methods of dispersion controlling are complex and need to trade off other aberration. Metasurface offers an alternative method to overcome those limits via utilizing dedicatedly designed nanostructures that response to special wavelength, which results in well-engineered dispersions...
September 4, 2017: Optics Express
https://www.readbyqxmd.com/read/29036771/oral-hormonal-contraception-in-special-circumstances
#4
Patricia Moore, Catherine Streeton
BACKGROUND: Despite the general consensus that long-acting reversible contraceptives (LARCs) are the most appropriate choice of contraception for most women, there are special circumstances when the contraceptive and non-contraceptive needs of the patient are met by oral methods. OBJECTIVE: By using case histories, we seek to demonstrate the medical and practical complexities in managing contraceptive needs that may result in oral contraception being the most appropriate choice...
October 2017: Australian Family Physician
https://www.readbyqxmd.com/read/29036142/standardized-target-specific-detectivity-metric-for-computational-imaging-systems
#5
Bradley L Preece, George Nehmetallah
Multifunctional cameras capable of performing a wide variety of nearly simultaneous imaging tasks are expected to play a major role in the near future. Computational imaging (CI) systems will serve as one of the main enabling technologies for multifunctional cameras, especially due to the abundance of low-cost, high-speed computational processing available today. An important aspect of these systems is to be able to quantify their performance with respect to specific imaging tasks. However, the non-traditional design of CI systems, both available and proposed, presents a considerable challenge to modeling, comparing, specifying, and measuring their performance...
September 1, 2017: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
https://www.readbyqxmd.com/read/29032350/identifying-characteristics-of-the-most-severely-impaired-chronic-pain-patients-treated-at-a-specialized-inpatient-pain-clinic
#6
Eva-Britt Hysing, Lena Smith, Mans Thulin, Rolf Karlsten, Stephen Butler, Torsten Gordh
BACKGROUND AND AIMS: Patients suffering from chronic nonmalignant pain constitute a heterogeneous population in terms of clinical presentation and treatment results. Few data are available about what distinguishes different groups in this huge population of patients with chronic persistent pain (CPP). A subgroup that is poorly studied, consists of the most severely impaired chronic pain patients. At the Uppsala University Hospital Pain Clinic, there is a specialized department accepting the most complex patients for rehabilitation...
October 12, 2017: Scandinavian Journal of Pain
https://www.readbyqxmd.com/read/29030325/adhd-is-there-an-app-for-that-a-suitability-assessment-of-apps-for-the-parents-of-children-and-young-people-with-adhd
#7
Lauren Powell, Jack Parker, Valerie Harpin
BACKGROUND: Attention-deficit hyperactivity disorder (ADHD) is a highly comorbid disorder that can impact significantly on the individual and their family. ADHD is managed via pharmacological and nonpharmacological interventions. Parents also gain support from parent support groups, which may include chat rooms, as well as face-to-face meetings. With the growth of technology use over recent years, parents have access to more resources that ever before. A number of mobile apps have been developed to help parents manage ADHD in their children and young people...
October 13, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/29029668/the-de-pharm-project-a-pharmacist-driven-deprescribing-initiative-in-a-nursing-facility
#8
Jennifer Pruskowski, Steven M Handler
OBJECTIVE: Many residents with life-limiting illnesses are being prescribed and taking potentially inappropriate medications (PIMs) and questionably beneficial medications either near or at the end of life. These medications can contribute to adverse drug reactions, increase morbidity, and increase unnecessary burden and cost. It is crucial that the process of deprescribing be incorporated into the care of these residents. After developing a clinical pharmacist-driven deprescribing initiative in the nursing facility, the objective of this project was to reduce the number of PIMs via accepted recommendations from the clinical pharmacist to the primary team...
August 1, 2017: Consultant Pharmacist: the Journal of the American Society of Consultant Pharmacists
https://www.readbyqxmd.com/read/29025350/the-patient-with-a-complex-chronic-respiratory-disease-a-specialist-of-his-own-life
#9
Sarah Houben-Wilke, Ingrid Ml Augustin, Birgit Bref Wouters, Rosita Stevens, Daisy J A Janssen, Martijn A Spruit, Lowie Egw Vanfleteren, Frits Me Franssen, Emiel Fm Wouters
The independent and central role of the patient with a complex chronic respiratory disease in targeted, personalized disease management strategies is becoming increasingly important. Patients are the ones living with the disease and are finally responsible for their lives underlining their role as essential members of the interdisciplinary treatment team. Areas covered: The present paper narratively reviews existing research and discusses the special, as well as specialized, role of the patient with a complex chronic respiratory disease in the healthcare system and highlights fundamental elements of the (future) relationship between patient and healthcare professionals...
October 13, 2017: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/29024214/regenerative-medicine-stroke-survivor-and-carer-views-and-motivations-towards-a-proposed-stem-cell-clinical-trial-using-placebo-neurosurgery
#10
Nicola A Cunningham, Purva Abhyankar, Julie Cowie, Jayne Galinsky, Karen Methven
BACKGROUND: Few studies explore stroke survivor views and motivations towards stem cell therapy (SCT). This qualitative study explores the views and motivations of both stroke survivors and their partners/carers towards a proposed 2-arm Phase III Randomised Controlled Trial (RCT) comparing intracerebral insertion of stem cells with placebo neurosurgery in stroke survivors with disability. OBJECTIVE: To explore views and motivations towards a proposed 2-arm stem cell trial and identify factors that may impede and enhance participation...
October 12, 2017: Health Expectations: An International Journal of Public Participation in Health Care and Health Policy
https://www.readbyqxmd.com/read/29023383/aal-platform-with-a-de-facto-standard-communication-interface-tico-training-in-home-control-in-special-education
#11
Miguel A Guillomía San Bartolomé, Jorge L Falcó Boudet, José Ignacio Artigas Maestre, Ana Sánchez Agustín
Framed within a long-term cooperation between university and special education teachers, training in alternative communication skills and home control was realized using the "TICO" interface, a communication panel editor extensively used in special education schools. From a technological view we follow AAL technology trends by integrating a successful interface in a heterogeneous services AAL platform, focusing on a functional view. Educationally, a very flexible interface in line with communication training allows dynamic adjustment of complexity, enhanced by an accessible mindset and virtual elements significance already in use, offers specific interaction feedback, adapts to the evolving needs and capacities and improves the personal autonomy and self-confidence of children at school and home...
October 12, 2017: Sensors
https://www.readbyqxmd.com/read/29022223/acute-kidney-injury-in-pregnancy-and-the-role-of-underlying-ckd-a-point-of-view-from-m%C3%A3-xico
#12
REVIEW
Margarita Ibarra-Hernández, Oralia Alejandra Orozco-Guillén, María Luz de la Alcantar-Vallín, Ruben Garrido-Roldan, María Patricia Jiménez-Alvarado, Kenia Benitez Castro, Francisco Villa-Villagrana, Mario Borbolla, Juan Manuel Gallardo-Gaona, Guillermo García-García, Norberto Reyes-Paredes, Giorgina Barbara Piccoli
The incidence of acute kidney injury in pregnancy (P-AKI) in developed countries is significantly lower than in developing ones, where it is estimated to range between 4 and 26%. Mortality in cases of P-AKI requiring dialysis is high, varying from 20 to 80%. In developing countries, clinical decisions are often based on the availability of services and not on needs. Prenatal surveillance in Mexico does not include serum creatinine, limiting the potential for early diagnosis of AKI and CKD and their differential diagnosis...
October 11, 2017: Journal of Nephrology
https://www.readbyqxmd.com/read/29021743/resolving-astrocyte-heterogeneity-in-the-cns
#13
REVIEW
W Todd Farmer, Keith Murai
Astrocytes play essential roles in nearly all aspects of brain function from modulating synapses and neurovasculature to preserving appropriate extracellular solute concentrations. To meet the complex needs of the central nervous system (CNS), astrocytes possess highly specialized properties that are optimized for their surrounding neural circuitry. Precisely how these diverse astrocytes types are generated in vivo, however, remains poorly understood. Key to this process is a critical balance of intrinsic developmental patterning and context-dependent environmental signaling events that configures astrocyte phenotype...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/29016904/arabinogalactan-proteins-accumulate-in-the-cell-walls-of-searching-hyphae-of-the-stem-parasitic-plants-cuscuta-campestris-and-cuscuta-japonica
#14
Akitaka Hozumi, Subhankar Bera, Daiki Fujiwara, Takeshi Obayashi, Ryusuke Yokoyama, Kazuhiko Nishitani, Koh Aoki
Stem parasitic plants (Cuscuta spp.) develop a specialized organ called a haustorium to penetrate their hosts' stem tissues. To reach the vascular tissues of the host plant, the haustorium needs to overcome the physical barrier of the cell wall, and the parasite-host interaction via the cell wall is a critical process. However, the cell wall components responsible for the establishment of parasitic connections have not yet been identified. In this study, we investigated the spatial distribution patterns of cell wall components at a parasitic interface using parasite-host complexes of Cuscuta campestris-Arabidopsis thaliana and Cuscuta japonica-Glycine max...
August 23, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/29016798/broad-phylogenetic-occurrence-of-the-oxygen-binding-hemerythrins-in-bilaterians
#15
Elisa M Costa-Paiva, Carlos G Schrago, Kenneth M Halanych
Animal tissues need to be properly oxygenated for carrying out catabolic respiration and, as such, natural selection has presumably favored special molecules that can reversibly bind and transport oxygen. Hemoglobins, hemocyanins, and hemerythrins (Hrs) fulfill this role, with Hrs being the least studied. Knowledge of oxygen-binding proteins is crucial for understanding animal physiology. Hr genes are present in the three domains of life, Archaea, Bacteria, and Eukaryota; however, within Animalia, Hrs has been reported only in marine species in six phyla (Annelida, Brachiopoda, Priapulida, Bryozoa, Cnidaria, and Arthropoda)...
October 1, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28993868/-dementia-view-of-sufferers-and-their-relatives
#16
REVIEW
Rainer Schaub, Heike von Lützau-Hohlbein
Dementia is the leading cause of cognitive and functional impairment in old age; however, within the scientific community this complex disease is predominantly viewed from a narrow neurobiological and medical perspective, whereas the subjective aspects of dementia, particularly the psychological and social consequences, albeit severe are more or less neglected. In this article the subjective side of experiences of persons with dementia and their relatives are discussed and special aspects of their specific problems and needs during the course of the illness are described...
October 9, 2017: Zeitschrift Für Gerontologie und Geriatrie
https://www.readbyqxmd.com/read/28993112/hospitalization-due-to-acute-exacerbation-of-chronic-pain-an-intervention-study-in-a-university-hospital
#17
Daniel W Wheeler, Sara Kinna, Andrew Bell, Peter J Featherstone, David J Sapsford, Sam P Bass
BACKGROUND AND AIMS: Hospitalization as a result of acute exacerbation of complex chronic pain is a largely hidden problem, as patients are often admitted to hospital under a variety of specialities, and there is frequently no overarching inpatient chronic pain service dedicated to their management. Our institution had established an inpatient acute pain service overseen by pain physicians and staffed by specialist nurses that was intended to focus on the management of perioperative pain...
October 6, 2017: Scandinavian Journal of Pain
https://www.readbyqxmd.com/read/28980825/does-the-fear-avoidance-model-explain-persistent-symptoms-after-traumatic-brain-injury
#18
Melloney L M Wijenberg, Sven Z Stapert, Jeanine A Verbunt, Jennie L Ponsford, Caroline M Van Heugten
BACKGROUND: A minority of patients with mild traumatic brain injury (mTBI) experience a persistent symptom complex also known as post-concussion syndrome. Explanations for this syndrome are still lacking. OBJECTIVE: To investigate if the fear avoidance model, including catastrophizing thoughts and fear avoidance behaviour, poses a possible biopsychosocial explanation for lingering symptoms and delay in recovery after traumatic brain injury (TBI) with special focus on mTBI...
October 5, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28978497/attention-deficit-hyperactivity-disorder-is-there-an-app-for-that-suitability-assessment-of-apps-for-children-and-young-people-with-adhd
#19
Lauren Powell, Jack Parker, Naomi Robertson, Valerie Harpin
BACKGROUND: Attention-deficit/hyperactivity disorder (ADHD) is a complex highly comorbid disorder, which can have a huge impact on those with ADHD, their family, and the community around them. ADHD is currently managed using pharmacological and nonpharmacological interventions. However, with advances in technology and an increase in the use of mobile apps, managing ADHD can be augmented using apps specifically designed for this population. However, little is known regarding the suitability and usability of currently available apps...
October 4, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28977461/catalytic-properties-of-rna-polymerases-iv-and-v-accuracy-nucleotide-incorporation-and-rntp-dntp-discrimination
#20
Michelle Marasco, Weiyi Li, Michael Lynch, Craig S Pikaard
All eukaryotes have three essential nuclear multisubunit RNA polymerases, abbreviated as Pol I, Pol II and Pol III. Plants are remarkable in having two additional multisubunit RNA polymerases, Pol IV and Pol V, which synthesize noncoding RNAs that coordinate RNA-directed DNA methylation for silencing of transposons and a subset of genes. Based on their subunit compositions, Pols IV and V clearly evolved as specialized forms of Pol II, but their catalytic properties remain undefined. Here, we show that Pols IV and V differ from one another, and Pol II, in nucleotide incorporation rate, transcriptional accuracy and the ability to discriminate between ribonucleotides and deoxyribonucleotides...
September 5, 2017: Nucleic Acids Research
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