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https://www.readbyqxmd.com/read/28330984/theoretically-possible-spatial-accuracy-of-geomagnetic-maps-used-by-migrating-animals
#1
Andrei V Komolkin, Pavel Kupriyanov, Andrei Chudin, Julia Bojarinova, Kirill Kavokin, Nikita Chernetsov
Many migrating animals, belonging to different taxa, annually move across the globe and cover hundreds and thousands of kilometres. Many of them are able to show site fidelity, i.e. to return to relatively small migratory targets, from distant areas located beyond the possible range of direct sensory perception. One widely debated possibility of how they do it is the use of a magnetic map, based on the dependence of parameters of the geomagnetic field (total field intensity and inclination) on geographical coordinates...
March 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28328630/fluorescein-isothiocyanate-a-novel-application-for-lymphatic-surgery
#2
Lisa Spiguel, Christiana Shaw, Adam Katz, Lifei Guo, Hung-Chi Chen, Bernard T Lee, Dhruv Singhal
The Lymphatic Microsurgical Preventing Healing Approach (LYMPHA) procedure entails performing a lymphovenous bypass (LVB) at the time of axillary lymph node dissection to reduce lymphedema risk. The two most common fluorophores utilized in LVB are blue dye and indocyanine green. We developed a novel application of fluorescein isothiocyanate for intraoperative lymphatic mapping. Our goal is to demonstrate the safety and efficacy of fluorescein isothiocyanate for this application. We reviewed a prospectively collected database on breast cancer patients who underwent LYMPHA from March to September 2015...
March 21, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28327187/schistosomiasis-is-more-prevalent-than-previously-thought-what-does-it-mean-for-public-health-goals-policies-strategies-guidelines-and-intervention-programs
#3
REVIEW
Daniel G Colley, Tamara S Andros, Carl H Campbell
Mapping and diagnosis of infections by the three major schistosome species (Schistosoma haematobium, S. mansoni and S. japonicum) has been done with assays that are known to be specific but increasingly insensitive as prevalence declines or in areas with already low prevalence of infection. This becomes a true challenge to achieving the goal of elimination of schistosomiasis because the multiplicative portion of the life-cycle of schistosomes, in the snail vector, favors continued transmission as long as even a few people maintain low numbers of worms that pass eggs in their excreta...
March 22, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/28325441/a-review-of-fuzzy-cognitive-maps-in-medicine-taxonomy-methods-and-applications
#4
REVIEW
Abdollah Amirkhani, Elpiniki I Papageorgiou, Akram Mohseni, Mohammad R Mosavi
BACKGROUND AND OBJECTIVE: A high percentage of medical errors, committed because of physician's lack of experience, huge volume of data to be analyzed, and inaccessibility to medical records of previous patients, can be reduced using computer-aided techniques. Therefore, designing more efficient medical decision-support systems (MDSSs) to assist physicians in decision-making is crucially important. Through combining the properties of fuzzy logic and neural networks, fuzzy cognitive maps (FCMs) are among the latest, most efficient, and strongest artificial intelligence techniques for modeling complex systems...
April 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28320907/a-velocity-map-imaging-study-of-methyl-non-resonant-multiphoton-ionization-from-the-photodissociation-of-ch3i-in-the-a-band
#5
Sonia Marggi Poullain, David V Chicharro, Luis Rubio-Lago, Alberto García-Vela, Luis Bañares
Chemical reaction dynamics and, particularly, photodissociation in the gas phase are generally studied using pump-probe schemes where a first laser pulse induces the process under study and a second one detects the produced fragments. Providing an efficient detection of ro-vibrationally state-selected photofragments, the resonance enhanced multiphoton ionization (REMPI) technique is, without question, the most popular approach used for the probe step, while non-resonant multiphoton ionization (NRMPI) detection of the products is scarce...
April 28, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/28316882/sympathy-for-the-devil-a-conservation-strategy-for-devil-and-manta-rays
#6
Julia M Lawson, Sonja V Fordham, Mary P O'Malley, Lindsay N K Davidson, Rachel H L Walls, Michelle R Heupel, Guy Stevens, Daniel Fernando, Ania Budziak, Colin A Simpfendorfer, Isabel Ender, Malcolm P Francis, Giuseppe Notarbartolo di Sciara, Nicholas K Dulvy
BACKGROUND: International trade for luxury products, medicines, and tonics poses a threat to both terrestrial and marine wildlife. The demand for and consumption of gill plates (known as Peng Yu Sai, "Fish Gill of Mobulid Ray") from devil and manta rays (subfamily Mobulinae, collectively referred to as mobulids) poses a significant threat to these marine fishes because of their extremely low productivity. The demand for these gill plates has driven an international trade supplied by largely unmonitored and unregulated catches from target and incidental fisheries around the world...
2017: PeerJ
https://www.readbyqxmd.com/read/28316309/high-resolution-ct-angiogram-for-lower-extremity-vein-mapping
#7
Mark P Wright, Matthew R Smeds, Lonnie Wright, Ahsan T Ali
High-resolution CT angiogram (CTA) has replaced traditional diagnostic angiography as the main preoperative imaging modality for vascular surgery patients. Although the use of CTA is increasing for arterial imaging, it has not been used routinely for vein mapping. The goal of this study was to evaluate the accuracy of CTA for venous anatomy and compare it to a standard venous duplex ultrasound (DUS). When the vein was used for bypass, the quality and size of the vein were evaluated in the operating room. As part of a preoperative workup before lower extremity revascularization, 16 patients underwent a CTA followed by a DUS...
March 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28299428/the-avian-hippocampus-and-the-hypothetical-maps-used-by-navigating-migratory-birds-with-some-reflection-on-compasses-and-migratory-restlessness
#8
Verner P Bingman, Scott A MacDougall-Shackleton
The homology between the avian hippocampal formation (HF) and mammalian hippocampus nurtures the expectation that HF plays a fundamental role in navigation by migratory birds. Indeed, HF of migratory birds displays anatomical properties that differ from non-migratory species. Using a hypothetical framework of multiple maps of differing spatial resolution and range, homing pigeon data suggest that HF is important for navigating by landscape features near familiar breeding, over-wintering, and stop-over sites...
March 16, 2017: Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology
https://www.readbyqxmd.com/read/28294098/come-on-using-intervention-mapping-to-help-healthy-pregnant-women-achieve-healthy-weight-gain
#9
Astrid Merkx, Marlein Ausems, Raymond de Vries, Marianne J Nieuwenhuijze
OBJECTIVE: Gaining too much or too little weight in pregnancy (according to Institute of Medicine (IOM) guidelines) negatively affects both mother and child, but many women find it difficult to manage their gestational weight gain (GWG). Here we describe the use of the intervention mapping protocol to design 'Come On!', an intervention to promote adequate GWG among healthy pregnant women. DESIGN: We used the six steps of intervention mapping: (i) needs assessment; (ii) formulation of change objectives; (iii) selection of theory-based methods and practical strategies; (iv) development of the intervention programme; (v) development of an adoption and implementation plan; and (vi) development of an evaluation plan...
March 15, 2017: Public Health Nutrition
https://www.readbyqxmd.com/read/28293701/diffusion-tensor-imaging-as-a-prognostic-biomarker-for-motor-recovery-and-rehabilitation-after-stroke
#10
REVIEW
Josep Puig, Gerard Blasco, Gottfried Schlaug, Cathy M Stinear, Pepus Daunis-I-Estadella, Carles Biarnes, Jaume Figueras, Joaquín Serena, Maria Hernández-Pérez, Angel Alberich-Bayarri, Mar Castellanos, David S Liebeskind, Andrew M Demchuk, Bijoy K Menon, Götz Thomalla, Kambiz Nael, Max Wintermark, Salvador Pedraza
PURPOSE: Despite improved acute treatment and new tools to facilitate recovery, most patients have motor deficits after stroke, often causing disability. However, motor impairment varies considerably among patients, and recovery in the acute/subacute phase is difficult to predict using clinical measures alone, particularly in severely impaired patients. Accurate early prediction of recovery would help rationalize rehabilitation goals and improve the design of trials testing strategies to facilitate recovery...
March 14, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28291797/mapping-indigenous-land-management-for-threatened-species-conservation-an-australian-case-study
#11
Anna R Renwick, Catherine J Robinson, Stephen T Garnett, Ian Leiper, Hugh P Possingham, Josie Carwardine
Much biodiversity lives on lands to which Indigenous people retain strong legal and management rights. However this is rarely quantified. Here we provide the first quantitative overview of the importance of Indigenous land for a critical and vulnerable part of biodiversity, threatened species, using the continent of Australia as a case study. We find that three quarters of Australia's 272 terrestrial or freshwater vertebrate species listed as threatened under national legislation have projected ranges that overlap Indigenous lands...
2017: PloS One
https://www.readbyqxmd.com/read/28289837/navigation
#12
Roswitha Wiltschko
Experiments with migrating birds displaced during autumn migration outside their normal migration corridor reveal two different navigational strategies: adult migrants compensate for the displacement, and head towards their traditional wintering areas, whereas young first-time migrants continue in their migratory direction. Young birds are guided to their still unknown goal by a genetically coded migration program that indicates duration and direction(s) of the migratory flight by controlling the amount of migratory restlessness and the compass course(s) with respect to the geomagnetic field and celestial rotation...
March 14, 2017: Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology
https://www.readbyqxmd.com/read/28285167/the-investigation-of-the-truncated-mbta-gene-within-the-mycobactin-cluster-of-mycobacterium-avium-subspecies-paratuberculosis-as-a-novel-diagnostic-marker-for-real-time-pcr
#13
Marcel de Kruijf, Aidan Coffey, Jim O'Mahony
The inability of Mycobacterium avium subspecies paratuberculosis (MAP) to produce endogenous mycobactin in-vitro is most likely due to the presence of a truncated mbtA gene within the mycobactin cluster of MAP. The main goal of this study was to investigate this unique mbtA truncation as a potential novel PCR diagnostic marker for MAP. Novel primers were designed that were located within the truncated region and the contiguous MAP2179 gene. Primers were evaluated against non-MAP isolates and no amplicons were generated...
March 8, 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/28284944/citizen-sensor-networks-to-confront-government-decision-makers-two-lessons-from-the-netherlands
#14
Linda Carton, Peter Ache
This paper presents one emerging social-technical innovation: The evolution of citizen-sensor-networks where citizens organize themselves from the 'bottom up', for the sake of confronting governance officials with measured information about environmental qualities. We have observed how citizen-sensor-networks have been initiated in the Netherlands in cases where official government monitoring and business organizations leave gaps. The formed citizen-sensor-networks collect information about issues that affect the local community in their quality-of-living...
March 9, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28284041/the-atmyb12-activation-domain-maps-to-a-short-c-terminal-region-of-the-transcription-factor
#15
Ralf Stracke, Neslihan Turgut-Kara, Bernd Weisshaar
The Arabidopsis thaliana R2R3-MYB transcription factor MYB12 is a light-inducible, flavonol-specific activator of flavonoid biosynthesis. The transactivation activity of the AtMYB12 protein was analyzed using a C-terminal deletion series in a transient A. thaliana protoplast assay with the goal of mapping the activation domain (AD). Although the deletion of the last 46 C-terminal amino acids did not affect the activation capacity, the deletion of the last 98 amino acids almost totally abolished transactivation of two different target promoters...
March 11, 2017: Zeitschrift Für Naturforschung. C, A Journal of Biosciences
https://www.readbyqxmd.com/read/28283695/restructuring-the-navigational-field-individual-predisposition-towards-field-independence-predicts-preferred-navigational-strategy
#16
Maddalena Boccia, Laura Piccardi, Adele D'Alessandro, Raffaella Nori, Cecilia Guariglia
To successfully navigate within an environment, individuals have to organize the spatial information in terms of salient landmarks, paths and general layout of the navigational environment. They may differ in the strategy they adopt to orientate themselves, with some individuals preferring to use salient landmarks (landmark spatial style, L-SS), others preferring to plan routes or paths through an egocentric strategy in which landmarks are connected with each other (route spatial style, R-SS) and others still create a global map-like configuration of the environment regardless of their own position in the environment (survey spatial style, S-SS)...
March 10, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28283354/effect-of-gradient-field-nonlinearity-distortions-in-mri-based-attenuation-maps-for-pet-reconstruction
#17
Josef A Lundman, Adam Johansson, Jörgen Olofsson, Jan Axelsson, Anne Larsson, Tufve Nyholm
PURPOSE: Attenuation correction is a requirement for quantification of the activity distribution in PET. The need to base attenuation correction on MRI instead of CT has arisen with the introduction of integrated PET/MRI systems. The aim was to describe the effect of residual gradient field nonlinearity distortions on PET attenuation correction. METHODS: MRI distortions caused by gradient field nonlinearity were simulated in CT images used for attenuation correction in PET reconstructions...
March 7, 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28277654/discovery-synthesis-design-and-prediction-of-chalcogenide-phases
#18
Mercouri G Kanatzidis
The discovery of new materials and their efficient syntheses is a fundamental goal of chemistry. A related objective is to identify foundational and rational approaches to enhance the art of synthesis by combining the exquisite predictability of organic synthesis with the high yields of solid-state chemistry. In contrast to so-called solid-state methods, inorganic syntheses in liquid fluxes permit bond formation, framework assembly, and crystallization at lower temperatures because of facile diffusion and chemical reactions with and within the flux itself...
March 9, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28272323/neurotoxic%C3%A2-doses%C3%A2-of%C3%A2-chronic%C3%A2-methamphetamine%C3%A2-trigger%C3%A2-retrotransposition%C3%A2-of%C3%A2-the%C3%A2-identifier%C3%A2-element%C3%A2-in%C3%A2-rat%C3%A2-dorsal%C3%A2-dentate%C3%A2-gyrus
#19
Anna Moszczynska, Kyle J Burghardt, Dongyue Yu
Short interspersed elements (SINEs) are typically silenced by DNA hypermethylation in somatic cells, but can retrotranspose in proliferating cells during adult neurogenesis. Hypomethylation caused by disease pathology or genotoxic stress leads to genomic instability of SINEs. The goal of the present investigation was to determine whether neurotoxic doses of binge or chronic methamphetamine (METH) trigger retrotransposition of the identifier (ID) element, a member of the rat SINE family, in the dentate gyrus genomic DNA...
March 6, 2017: Genes
https://www.readbyqxmd.com/read/28271169/-intraoperative-monitoring-of-the-facial-nerve-vestibular-schwannoma-surgery
#20
J Prell, C Strauss, S K Plontke, S Rampp
BACKGROUND: In vestibular schwannoma surgery, facial nerve injury with consecutive functional impairment is one of the most important complications. Intraoperative monitoring of facial nerve function has been developed in order to avoid this complication. OBJECTIVE: Which methods for intraoperative monitoring have been developed? Which methods are in use today and what can they achieve in modern vestibular schwannoma surgery? MATERIAL AND METHODS: This article provides an evaluation and summary of the literature, as well as a discussion of the methods and their ability to achieve the goals of intraoperative monitoring...
March 7, 2017: HNO
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