296,808 results match your criteria Temporal Bone Fracture Imaging


Getting "Stuck" in the Future or the Past: Relationships between Dimensions of Time Perspective, Executive Functions, and Repetitive Negative Thinking in Anxiety.

Psychopathology 2018 Dec 6:1-9. Epub 2018 Dec 6.

Background/aim: Anxiety disorders are associated with impairments in several aspects of cognitive processing. In this study we investigated three such aspects, i.e. Read More

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December 2018
1 Read

The effect of unilateral lingual nerve injury on the kinematics of mastication in pigs.

Arch Oral Biol 2018 Nov 22;98:226-237. Epub 2018 Nov 22.

Ohio University Heritage College of Osteopathic Medicine, Department of Biomedical Sciences, Irvine Hall 228, Athens, OH, 45701, USA. Electronic address:

Objective: This study evaluates the effect of unilateral lingual sensory loss on the spatial and temporal dynamics of jaw movements during pig chewing.

Design: X-ray Reconstruction of Moving Morphology (XROMM) was used to reconstruct the 3-dimensional jaw movements of 6 pigs during chewing before and after complete unilateral lingual nerve transection. The effect of the transection were evaluated at the temporal and spatial level using Multiple Analysis of Variance. Read More

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November 2018

An environmental flow determination method for integrating multiple-scale ecohydrological and complex ecosystem processes in estuaries.

Sci Total Environ 2018 Nov 22;656:482-494. Epub 2018 Nov 22.

Nelson Mandela University, PO Box 77000, Port Elizabeth 6031, South Africa. Electronic address:

This paper presents an environmental flow methodology that was developed to accommodate shallow, highly dynamic micro-tidal estuaries found along the wave-dominated coast of South Arica. This method differs to most other approaches that primarily focus on larger permanently open systems having unrestricted inlets. Following an adaptive, design science research approach, the 7-step method adopted both ecohydrological and ecosystem-based concepts, encapsulating key hydrologicalhydrodynamic-biogeochemical processes, as well as biotic responses. Read More

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November 2018
1 Read

Temporal fluctuations in young-of-the-year yellow perch mercury bioaccumulation in lakes of northeastern Minnesota.

Sci Total Environ 2018 Nov 22;656:475-481. Epub 2018 Nov 22.

USDA Forest Service, Superior National Forest, 8901 Grand Ave Place, Duluth, MN 55808, USA. Electronic address:

Identifying what determines fish mercury (Hg) bioaccumulation remains a key scientific challenge. While there has been substantial research on spatial variation in fish Hg bioaccumulation, the factors that influence temporal fluctuations in fish Hg have received less attention to date. In this study, we built upon a growing body of research investigating young-of-the-year (YOY) yellow perch Hg bioaccumulation and investigated annual fluctuations in YOY yellow perch Hg in six lakes in northeastern Minnesota over eight years. Read More

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November 2018
2 Reads

On-line measurement of fluorescent aerosols near an industrial zone in the Yangtze River Delta region using a wideband integrated bioaerosol spectrometer.

Sci Total Environ 2018 Nov 26;656:447-457. Epub 2018 Nov 26.

Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science & Technology, Nanjing 210044, China. Electronic address:

In this work, we present on-line fluorescent aerosol measurements by the wideband integrated bioaerosol spectrometer (WIBS-4A) near an industrial zone in Nanjing, a megacity in the Yangtze-River-Delta (YRD) region. The fieldwork was conducted from April 1 to May 8, 2014. A TSI. Read More

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November 2018
1 Read

The impact of dam flushing event on dissolved trace elements concentrations: Coupling integrative passive sampling and discrete monitoring.

Sci Total Environ 2018 Nov 22;656:433-446. Epub 2018 Nov 22.

Irstea, UR RiverLy, centre de Lyon-Villeurbanne, 5 rue de la Doua, CS 20244, F-69625, Villeurbanne Cedex, France.

Sediments accumulation in reservoirs induces water storage capacities reduction and flood risks increases rendering dam flushing or dredging events compulsory for security reasons. Short transient events like dam flushing monitoring is still a great challenge because the suspended sediments and contaminants concentrations increases could occur over only few hours/days and cover tens of kilometres. Since 1942, 21 dam flushing events have been performed on the Upper Rhône River (from Lake Geneva in Switzerland to Lyon in France) in order to evacuate accumulated sediments behind the Verbois dam (Switzerland). Read More

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November 2018

Systemic thrombolysis in haemodynamically unstable pulmonary embolism: The earlier the better?

Thromb Res 2018 Nov 29;173:117-123. Epub 2018 Nov 29.

Department of Cardiology, Santa Maria della Misericordia Hospital, Rovigo, Italy. Electronic address:

Introduction: The temporal window for the administration of systemic thrombolysis (ST) in acute pulmonary embolism (PE) has not yet been clarified. We assessed the relationship between short-term cardiovascular (CV) mortality and time of ST administration.

Material And Methods: Among 394 consecutive patients admitted between January 2010 and June 2017 with a confirmed PE, we retrospectively review the clinical and instrumental data of those labelled as high-risk PE (n = 76, 41 males, mean aged 64. Read More

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November 2018
3 Reads

A 'Fingerprint' of locomotor maturation: Motor development descriptors, reference development bands and data-set.

Gait Posture 2018 Nov 29;68:232-237. Epub 2018 Nov 29.

Department of Electrical, Electronic and Information Engineering "Guglielmo Marconi", University of Bologna, Via del Risorgimento 2, 40136 Bologna, Italy.

Background: When aiming at studying and monitoring locomotor development in childhood, innovative indexes for the characterization of motor control performance and wearable technologies have highlighted the potential of significant advances. In particular, quantitative assessment of motor performance during natural walking (NW) and tandem walking (TW) has been proposed to highlight manifestations of motor automaticity and complexity, respectively.

Research Question: This work aims at providing a quantitative overview of metrics characterizing locomotor maturation in a typically developing population, by analysing NW and TW. Read More

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November 2018

Full length foot orthoses have an immediate treatment effect and modify gait of children with idiopathic toe walking.

Gait Posture 2018 Nov 20;68:227-231. Epub 2018 Nov 20.

Monash University, School of Primary and Allied Health Care, Frankston, VIC, 3199, Australia; Peninsula Health, Allied Health, 4 Hastings Rd, Frankston, VIC, 3199, Australia.

Background: There remains a substantial lack of evidence to support the use of foot orthoses as a conservative treatment option for idiopathic toe walking (ITW). Encouraging heel contact during gait is one of the primary goals of most interventions in paediatric ITW.

Research Question: Does the combined treatment of high-top boots and orthoses increase the number of heel contacts during gait and change spatio-temporal gait parameters?

Methods: This within subject designed randomised controlled trial recruited fifteen children diagnosed with ITW (n = 10 males). Read More

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November 2018
2 Reads

Temporal dynamics of cortisol-associated changes in mRNA expression of glucocorticoid responsive genes FKBP5, GILZ, SDPR, PER1, PER2 and PER3 in healthy humans.

Psychoneuroendocrinology 2018 Nov 30;102:63-67. Epub 2018 Nov 30.

Department of Neurobehavioral Genetics, Institute of Psychobiology, University of Trier, D-54290, Trier, Germany. Electronic address:

Secretion of the stress hormone cortisol follows a circadian rhythm and is stimulated following stress exposure. Cortisol regulates the transcription of several genes, primarily through activation of the glucocorticoid receptor (GR). Previously, we showed an upregulation of PERIOD genes PER1 and PER3 after pharmacological/glucocorticoid challenge in vivo and in vitro. Read More

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November 2018

The unique spatial-temporal treatment failure patterns of adjuvant gefitinib therapy: A post-hoc analysis of the ADJUVANT trial (CTONG 1104).

J Thorac Oncol 2018 Dec 3. Epub 2018 Dec 3.

Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China. Electronic address:

Introduction: Adjuvant gefitinib therapy prolonged disease-free survival (DFS) in patients with resected early-stage epidermal growth factor receptor (EGFR)-mutation positive non-small cell lung cancer (NSCLC) in the ADJUVANT study (CTONG 1104). However, treatment failure patterns after gefitinib therapy are less well characterized.

Methods: Overall, 222 stage N1-N2, EGFR-mutant NSCLC patients received gefitinib or vinorelbine plus cisplatin (VP) treatment. Read More

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December 2018
2 Reads

Epithelioid Osteoblastoma of the Temporal Bone: A Case Report.

World Neurosurg 2018 Dec 3. Epub 2018 Dec 3.

Department of Pathology, Faculty of Medicine Universitas Indonesia, Dr. Cipto Mangunkusumo General Hospital.

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December 2018
1 Read

Dynamic functional connectivity during task performance and rest predicts individual differences in attention across studies.

Neuroimage 2018 Dec 3. Epub 2018 Dec 3.

Department of Psychology, Yale University, USA; Department of Neuroscience, Yale School of Medicine, USA; Interdepartmental Neuroscience Program, Yale University, USA.

Dynamic functional connectivity (DFC) aims to maximize resolvable information from functional brain scans by considering temporal changes in network structure. Recent work has demonstrated that static, i.e. Read More

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December 2018

Traces of Statistical Learning in the Brain's Functional Connectivity after Artificial Language Exposure.

Neuropsychologia 2018 Dec 3. Epub 2018 Dec 3.

Center for Brain and Cognition, Department of Technology, Universitat Pompeu Fabra, 08018, Barcelona, Spain.

Our environment is full of statistical regularities, and we are attuned to learn about these regularities by employing Statistical Learning (SL), a domain-general ability that enables the implicit detection of probabilistic regularities in our surrounding environment. The role of brain connectivity on SL has been previously explored, highlighting the relevance of structural and functional connections between frontal, parietal, and temporal cortices. However, whether SL can induce changes in the functional connections of the resting state brain has yet to be investigated. Read More

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December 2018

Expression of the neuropeptides RFamide and LWamide during development of the coral Acropora millepora in relation to settlement and metamorphosis.

Dev Biol 2018 Dec 3. Epub 2018 Dec 3.

Division of Ecology and Evolution, Bldg 46, Research School of Biology, Australian National University, Canberra, ACT 0200, Australia; ARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD 4811, Australia. Electronic address:

Neuropeptides play critical roles in cnidarian development. However, although they are known to play key roles in settlement and metamorphosis, their temporal and spatial developmental expression has not previously been characterized in any coral. We here describe Acropora millepora LWamide and RFamide and their developmental expression from the time of their first appearance, using in situ hybridization and FMRFamide immunohistochemistry. Read More

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December 2018
1 Read

Electronic "Sniffer" Systems to Identify the Acute Respiratory Distress Syndrome: A Systematic Review.

Ann Am Thorac Soc 2018 Dec 6. Epub 2018 Dec 6.

University of Michigan, Internal Medicine, Ann Arbor, Michigan, United States ;

Background: The acute respiratory distress syndrome (ARDS) results in substantial mortality but remains underdiagnosed in clinical practice. Automated ARDS "sniffer" systems, tools that can automatically analyze electronic medical record data, have been developed to improve recognition of ARDS in clinical practice.

Objective: To perform a systematic review examining the evidence underlying automated sniffer systems for ARDS detection. Read More

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December 2018

Myocardial Injury in Critically Ill Patients with Community-acquired Pneumonia: A Cohort Study.

Ann Am Thorac Soc 2018 Dec 6. Epub 2018 Dec 6.

University Medical CenterUtrecht, Utrecht, Netherlands.

Rationale: Myocardial injury, as reflected by elevated cardiac troponin levels in plasma, is common in patients with community-acquired pneumonia (CAP), but its temporal dynamics and etiology remain unknown.

Objectives: Our aim was to determine the incidence of troponin release in patients with CAP and identify risk factors which may point to underlying etiologic mechanisms.

Methods: We included consecutive patients admitted with severe CAP to two intensive care units in the Netherlands between 2011 and 2015. Read More

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December 2018
1 Read

Comparison of brain magnetic resonance imaging between myotonic dystrophy type 1 and cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy.

PLoS One 2018 6;13(12):e0208620. Epub 2018 Dec 6.

Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.

Background: Anterior temporal lobe hyperintensities detected by brain MRI are a recognized imaging hallmark of cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL). Because similar findings may be present in patients with myotonic dystrophy type 1 (DM1), the brain MRI in these two diseases is often misinterpreted. We compared the MRI findings between the two entities to examine whether they display distinctive characteristics. Read More

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December 2018
4 Reads

Porcine circovirus 2 (PCV-2) genotype update and proposal of a new genotyping methodology.

PLoS One 2018 6;13(12):e0208585. Epub 2018 Dec 6.

UAB, Centre de Recerca en Sanitat Animal (CRESA, IRTA-UAB), Campus de la Universitat Autònoma de Barcelona, Bellaterra, Spain.

Porcine circovirus 2 (PCV-2) is one of the most widespread viral infections of swine, causing a remarkable economic impact because of direct losses and indirect costs for its control. As other ssDNA viruses, PCV-2 is characterized by a high evolutionary rate, leading to the emergence of a plethora of variants with different biological and epidemiological features. Over time, several attempts have been made to organize PCV-2 genetic heterogeneity in recognized genotypes. Read More

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December 2018

Unexpected discrepancies in hospital administrative databases can impact the accuracy of monitoring thyroid surgery outcomes in France.

PLoS One 2018 6;13(12):e0208416. Epub 2018 Dec 6.

Department of General and Endocrine Surgery, Lyon Sud Hospital, Hospices Civils de Lyon, Pierre-Bénite, France.

Objective: To determine the validity of hospital administrative databases compared to prospective collection of medical data assessing thyroid surgery complications.

Background: Administrative data are increasingly used to track surgical outcomes.

Methods: All patients undergoing thyroid surgery at three French university hospitals between April 2008 and April 2009 were prospectively included. Read More

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December 2018
1 Read

Risk prediction system for dengue transmission based on high resolution weather data.

PLoS One 2018 6;13(12):e0208203. Epub 2018 Dec 6.

IBM Research Australia, Southgate, Victoria, Australia.

Background: Dengue is the fastest spreading vector-borne viral disease, resulting in an estimated 390 million infections annually. Precise prediction of many attributes related to dengue is still a challenge due to the complex dynamics of the disease. Important attributes to predict include: the risk of and risk factors for an infection; infection severity; and the timing and magnitude of outbreaks. Read More

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December 2018
2 Reads

Temporal changes in the viromes of Swedish Varroa-resistant and Varroa-susceptible honeybee populations.

PLoS One 2018 6;13(12):e0206938. Epub 2018 Dec 6.

Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden.

The parasitic mite, Varroa destructor, in combination with the viruses it vectors, is the main cause for global colony losses of the European honeybee, Apis mellifera. However, an isolated honeybee population established in 1999 on the Island of Gotland, Sweden has naturally acquired resistance to the mite, and has survived without mite control treatment for more than 18 years. A recent study has shown that this mite resistant (MR) population also appears to be resistant to Black queen cell virus (BQCV) and Sacbrood virus (SBV) and tolerant to Deformed wing virus (DWV), relative to nearby mite susceptible (MS) honeybee populations. Read More

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December 2018
1 Read

Visceral leishmaniasis: Spatiotemporal heterogeneity and drivers underlying the hotspots in Muzaffarpur, Bihar, India.

PLoS Negl Trop Dis 2018 Dec 6;12(12):e0006888. Epub 2018 Dec 6.

Department of Medicine, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India.

Background: Despite the overall decrease in visceral leishmaniasis (VL) incidence on the Indian subcontinent, there remain spatiotemporal clusters or 'hotspots' of new cases. The characteristics of these hotspots, underlying transmission dynamics, and their importance for shaping control strategies are not yet fully understood and are investigated in this study for a VL endemic area of ~100,000 inhabitants in Bihar, India between 2007-2015.

Methodology/principal Findings: VL incidence (cases/10,000/year) dropped from 12. Read More

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December 2018

Function and energy consumption constrain neuronal biophysics in a canonical computation: Coincidence detection.

PLoS Comput Biol 2018 Dec 6;14(12):e1006612. Epub 2018 Dec 6.

Institute for Theoretical Biology, Department of Biology, Humboldt-Universität zu Berlin, Berlin, Germany.

Neural morphology and membrane properties vary greatly between cell types in the nervous system. The computations and local circuit connectivity that neurons support are thought to be the key factors constraining the cells' biophysical properties. Nevertheless, additional constraints can be expected to further shape neuronal design. Read More

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December 2018
2 Reads

Statistical modeling of the effect of rainfall flushing on dengue transmission in Singapore.

PLoS Negl Trop Dis 2018 Dec 6;12(12):e0006935. Epub 2018 Dec 6.

Draper, Cambridge, Massachusetts, United States of America.

Background: Rainfall patterns are one of the main drivers of dengue transmission as mosquitoes require standing water to reproduce. However, excess rainfall can be disruptive to the Aedes reproductive cycle by "flushing out" aquatic stages from breeding sites. We developed models to predict the occurrence of such "flushing" events from rainfall data and to evaluate the effect of flushing on dengue outbreak risk in Singapore between 2000 and 2016. Read More

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December 2018
1 Read

The emergence and characteristics of the Australian Mamil.

Med J Aust 2018 Dec;209(11):490-494

University of Sydney, Sydney, NSW.

Background: The Mamil (middle-aged man in Lycra) appears to be an emergent cycling-focused species.

Objectives: To explore the nature and distribution of the Mamilian species; to determine whether rates of cycling by middle-aged men in Australia have changed since the pre-Mamilian era.

Setting: Secondary analysis of representative population-based datasets. Read More

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December 2018
1 Read

Methane production and emissions in trees and forests.

New Phytol 2018 Dec 6. Epub 2018 Dec 6.

Smithsonian Environmental Research Center, 647 Contees Wharf Road, Edgewater, MD, 21037.

Forest ecosystem methane (CH ) research has focused on soils, but trees are also important sources and sinks in forest CH budgets. Living and dead trees transport and emit CH produced in soils; living trees and deadwood emit CH produced inside trees by microorganisms; and trees produce CH through an abiotic photochemical process. Here, we review the state of the science on the production, consumption, transport, and emission of CH by living and dead trees, and the spatial and temporal dynamics of these processes across hydrologic gradients inclusive of wetland and upland ecosystems. Read More

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December 2018
1 Read

BIOLITMAP: a web-based geolocated, temporal and thematic visualization of the evolution of bioinformatics publications.

Bioinformatics 2018 Dec 5. Epub 2018 Dec 5.

Barcelona Supercomputing Center (BSC), C/Jordi Girona, 29-31, Barcelona, Spain.

Motivation: The fast growth of bioinformatics adds a significant difficulty to assess the contribution, geographical and thematic distribution of the research publications.

Results: To help researchers, grant agencies and general public to assess the progress in bioinformatics, we have developed BIOLITMAP, a web-based geolocation system that allows an easy and sensible exploration of the publications by institution, year and topic.

Availability: BIOLITMAP is available at http://socialanalytics. Read More

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December 2018

BIOINFORMATIC ANALYSIS OF DOSE- AND TIME-DEPENDENT miRNome RESPONSES.

Radiat Prot Dosimetry 2018 Dec 6. Epub 2018 Dec 6.

Laboratory of Biomedical Technologies, Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Rome, Italy.

The advent of new 'omics' techniques determined a massive boost in the measurement of the whole spectra of molecules within cells, favoring promising new radiobiological studies at low doses. The main aim of this work was to assess the radiation-induced perturbations of miRNA profiles and their temporal dynamics. Human Umbilical Vein Endothelial Cells were irradiated with low doses of γ-rays. Read More

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December 2018
2 Reads

Exploring the Brain Lateralization in ADHD Based on Variability of Resting-State fMRI Signal.

J Atten Disord 2018 Dec 6:1087054718816170. Epub 2018 Dec 6.

1 Nanjing University of Science & Technology, China.

Objective: In this study, we investigate the brain lateralization in ADHD patients. Furthermore, we also explore the difference between male and female patients, and the difference among distinct ADHD subtypes, that is, ADHD-inattentive (ADHD-IA) and ADHD-combined (ADHD-C).

Method: We employed the standard deviation to quantify the variability of resting-state functional magnetic resonance imaging (fMRI) signal and measure the lateralization index (LI). Read More

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December 2018
2 Reads

Synthesis of urban CO emission estimates from multiple methods from the Indianapolis Flux Project (INFLUX).

Environ Sci Technol 2018 Dec 6. Epub 2018 Dec 6.

Urban areas contribute approximately three-quarters of fossil fuel derived CO emissions, and many cities have enacted emissions mitigation plans. Evaluation of the effectiveness of mitigation efforts will require measurement of both the emission rate and its change over space and time. The relative performance of different emission estimation methods is a critical requirement to support mitigation efforts. Read More

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December 2018
5 Reads

Giant Cell Arteritis Presenting as an Ischaemic Upper Limb

Ir Med J 2018 08 13;111(7):791. Epub 2018 Aug 13.

Department of Rheumatology, Mercy University Hospital, Cork, Ireland

Aim To present an interesting case of giant cell arteritis presenting as ischaemic upper limb. Methods Data was collected from the patient’s chart and from radiology and laboratory systems in our institution. Results The patient had a temporal artery biopsy confirming the diagnosis of temporal arteritis. Read More

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The influence of minimalist and conventional sports shoes and lower limbs dominance on running gait.

Acta Bioeng Biomech 2018 ;20(3):3-9

University of Ostrava, Faculty of Education, Department of Human Movement Studies, Ostrava, Czech Republic.

Purpose: The aim of this study was to determine how minimalist running shoes (MRS), conventional running shoes (CRS) and the dominance of lower limbs influence the running gait.

Methods: Trained recreational runners (N = 13) who have been engaged in regulary running for more than one year were participants in this study. They were experienced with using MRS and CRS for more than half year and they used both types of shoes. Read More

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January 2018

2D and 3D real-time passive cavitation imaging of pulsed cavitation ultrasound therapy in moving tissues.

Phys Med Biol 2018 Dec 6;63(23):235028. Epub 2018 Dec 6.

Institut Langevin, ESPCI ParisTech, CNRS UMR 7587, INSERM U979, Paris 7, 17 rue Moreau, 75012 Paris, France. Cardiawave SA, 29 rue du Faubourg Saint Jacques, 75014, Paris, France.

Pulsed cavitation ultrasound therapy (PCUT) is an effective non-invasive therapeutic approach in various medical indications that relies on the mechanical effects generated by cavitation bubbles. Even though limited by the poor contrast, conventional ultrasound B-Mode imaging has been widely used for the guidance and monitoring of the therapeutic procedure, allowing the visualization of the cavitation bubble cloud. However, the visualization of the bubble cloud is often limited in deep organs such as the liver and the heart and remains moreover completely subjective for the operator. Read More

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December 2018

Effect of selective serotonin reuptake inhibitor on prefrontal-striatal connectivity is dependent on the level of TNF-α in patients with major depressive disorder.

Psychol Med 2018 Dec 6:1-9. Epub 2018 Dec 6.

School of Traditional Chinese Medicine, Southern Medical University,Guangzhou,China.

Background: We hypothesize that the tumor necrosis factor-α (TNF-α) may play a role in disturbing the effect of selective serotonin reuptake inhibitor (SSRI) on the striatal connectivity in patients with major depressive disorder (MDD).

Methods: We performed a longitudinal observation by combining resting-state functional magnetic resonance imaging (rs-fMRI) and biochemical analyses to identify the abnormal striatal connectivity in MDD patients, and to evaluate the effect of TNF-α level on these abnormal connectivities during SSRI treatment. Eighty-five rs-fMRI scans were collected from 25 MDD patients and 35 healthy controls, and the scans were repeated for all the patients before and after a 6-week SSRI treatment. Read More

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December 2018

Emerging Design and Characterization Guidelines for Polymer-Based Infrared Photodetectors.

Acc Chem Res 2018 Dec 6. Epub 2018 Dec 6.

Department of Electrical and Computer Engineering , University of California San Diego , 9500 Gilman Drive , La Jolla , California 92093-0407 , United States.

Infrared photodetectors are essential to many applications, including surveillance, communications, process monitoring, and biological imaging. The short-wave infrared (SWIR) spectral region (λ = 1-3 μm) is particularly powerful for health monitoring and medical diagnostics because biological tissues show low absorbance and minimal SWIR autofluorescence, enabling greater penetration depth and improved resolution in comparison with visible light. However, current SWIR photodetection technologies are largely based on epitaxially grown inorganic semiconductors, which are costly, require complex processing, and impose cooling requirements incompatible with wearable electronics. Read More

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December 2018

A Photon-Responsive Antibacterial Nanoplatform for Synergistic Photothermal-/Pharmaco- Therapy of Skin Infection.

ACS Appl Mater Interfaces 2018 Dec 6. Epub 2018 Dec 6.

Abuse of antibiotics and their residues in the environment result in the emergence and prevalence of drug-resistant bacteria and lead to serious health problems. Herein, a photon-controlled antibacterial platform that can efficiently kill drug-resistant bacteria and avoid the generation of new bacterial resistance was designed by encapsulating black phosphorus quantum dots (BPQDs) and pharmaceutical inside a thermal-sensitive liposome. The antibacterial platform can release pharmaceutical in a spatial-, temporal- and dosage-controlled fashion since the BPQDs can delicately generate heat under near-infrared (NIR) light stimulation to disrupt the liposome. Read More

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December 2018
2 Reads

Comprehensive analysis of presurgical factors predicting psychiatric disorders in patients with refractory temporal lobe epilepsy and mesial temporal sclerosis underwent cortico-amygdalohippocampectomy.

J Clin Lab Anal 2018 Dec 5:e22724. Epub 2018 Dec 5.

Department of Neurosurgery, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region, Chengdu, China.

Background: This study aimed to evaluate the predictive value of presurgical factors for psychiatric disorders (PD) in refractory temporal lobe epilepsy and mesial temporal sclerosis (TLE-MTS) patients underwent cortico-amygdalohippocampectomy (CAH).

Methods: A total of 98 refractory TLE-MTS patients underwent CAH were consecutively enrolled in this cohort study. Several presurgical factors were recorded, such as married status, employment status, highest education, disease duration, family history of epilepsy, and disorganized VEEG background activity. Read More

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December 2018

Dynamic distractor environments reveal classic visual field anisotropies for judgments of temporal order.

Atten Percept Psychophys 2018 Dec 5. Epub 2018 Dec 5.

Department of Experimental & Applied Psychology, Vrije Universiteit, Amsterdam, Netherlands.

Numerous studies have shown that visual performance critically depends on the stimulus' projected retinal location. For example, performance tends to be better along the horizontal relative to the vertical meridian (lateral anisotropy). Another case is the so-called upper-lower anisotropy, whereby performance is better in the upper relative to the lower hemifield. Read More

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December 2018

Optimizing Trajectories for Cranial Laser Interstitial Thermal Therapy Using Computer-Assisted Planning: A Machine Learning Approach.

Neurotherapeutics 2018 Dec 5. Epub 2018 Dec 5.

Department of Clinical and Experimental Epilepsy, UCL Institute of Neurology, 33 Queen Square, London, WC1E 6BT, UK.

Laser interstitial thermal therapy (LITT) is an alternative to open surgery for drug-resistant focal mesial temporal lobe epilepsy (MTLE). Studies suggest maximal ablation of the mesial hippocampal head and amygdalohippocampal complex (AHC) improves seizure freedom rates while better neuropsychological outcomes are associated with sparing of the parahippocampal gyrus (PHG). Optimal trajectories avoid sulci and CSF cavities and maximize distance from vasculature. Read More

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December 2018
1 Read

Magnetic resonance imaging of the time course of hyperpolarized Xe gas exchange in the human lungs and heart.

Eur Radiol 2018 Dec 5. Epub 2018 Dec 5.

Department of Oncology, University of Oxford, Old Road Campus Research Building, Roosevelt Drive, Oxford, OX3 7DQ, UK.

Purpose: To perform magnetic resonance imaging (MRI), human lung imaging, and quantification of the gas-transfer dynamics of hyperpolarized xenon-129 (HPX) from the alveoli into the blood plasma.

Materials And Methods: HPX MRI with iterative decomposition of water and fat with echo asymmetry and least-square estimation (IDEAL) approach were used with multi-interleaved spiral k-space sampling to obtain HPX gas and dissolved phase images. IDEAL time-series images were then obtained from ten subjects including six normal subjects and four patients with pulmonary emphysema to test the feasibility of the proposed technique for capturing xenon-129 gas-transfer dynamics (XGTD). Read More

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December 2018
1 Read

Reconstruction and positional accuracy of 3D ultrasound on vertebral phantoms for adolescent idiopathic scoliosis spinal surgery.

Int J Comput Assist Radiol Surg 2018 Dec 5. Epub 2018 Dec 5.

Department of Biomedical Engineering, University of Alberta, 1098 Research Transition Facility, 8308-114 Street, Edmonton, AB, T6G 2V2, Canada.

Purpose: Determine the positional, rotational and reconstruction accuracy of a 3D ultrasound system to be used for image registration in navigation surgery.

Methods: A custom 3D ultrasound for spinal surgery image registration was developed using Optitrack Prime 13-W motion capture cameras and a SonixTablet Ultrasound System. Temporal and spatial calibration was completed to account for time latencies between the two systems and to ensure accurate motion tracking of the ultrasound transducer. Read More

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December 2018
1 Read

Loss of horizontal macular ganglion cell complex asymmetry: an optical coherence tomography indicator of chiasmal compression.

BMJ Open Ophthalmol 2018 25;3(1):e000195. Epub 2018 Oct 25.

Section of Specialized Endocrinology, Oslo University Hospital, Oslo, Norway.

Objective: To estimate the macular ganglion cell complex (GCC) asymmetry in patients with suprasellar tumours, to compare its diagnostic performance to the nasal GCC thickness and visual field (VF) and to investigate how the parameters correlate with magnetic resonance imaging (MRI) findings.

Methods And Analysis: Cross-sectional study of patients with suprasellar tumours affecting the optic chiasm. Macular optical coherence tomography (OCT) scans were evaluated for nasal GCC sector thinning and loss of normal GCC asymmetry between corresponding nasal-temporal sectors. Read More

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October 2018
1 Read

Functional Connectivity of Paired Default Mode Network Subregions in Retinal Detachment.

Transl Vis Sci Technol 2018 Nov 30;7(6):15. Epub 2018 Nov 30.

Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Clinical Ophthalmology Institute, Nanchang, Jiangxi, China.

Purpose: To explore the difference of the default mode network (DMN) in patients with retinal detachment (RD) by the study of the resting state functional connectivity (rs-FC).

Methods: A total of 30 patients with RD (16 men, 14 women) and 30 similarly matched normal controls (NCs) were examined and recorded with rs-fMRI. The DMN was divided into eight core regions, and each rs-FC map of each subregion was obtained. Read More

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November 2018

A discontinuous Galerkin model for fluorescence loss in photobleaching of intracellular polyglutamine protein aggregates.

BMC Biophys 2018 29;11. Epub 2018 Nov 29.

Department of Biochemistry and Molecular Biology, Campusvej 55, Odense M, 5230 Denmark.

Background: Intracellular phase separation and aggregation of proteins with extended poly-glutamine (polyQ) stretches are hallmarks of various age-associated neurodegenerative diseases. Progress in our understanding of such processes heavily relies on quantitative fluorescence imaging of suitably tagged proteins. Fluorescence loss in photobleaching (FLIP) is particularly well-suited to study the dynamics of protein aggregation in cellular models of Chorea Huntington and other polyQ diseases, as FLIP gives access to the full spatio-temporal profile of intensity changes in the cell geometry. Read More

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November 2018
2 Reads

Soil organic carbon dynamics matching ecological equilibrium theory.

Ecol Evol 2018 Nov 18;8(22):11169-11178. Epub 2018 Oct 18.

School of Integrative Plant Science Cornell University Ithaca New York.

The persistence of soil organic carbon (SOC) has traditionally been explained as a combination of recalcitrance properties and stabilization processes, which lead to the formation of complex organic compounds. However, recent conceptual advances and experimental evidence challenge this view. Here, we test these conceptual advances using a dynamic equilibrium theory of SOC founded on classic ecological theory. Read More

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November 2018

Opportunistic Bacteria Dominate the Soil Microbiome Response to Phenanthrene in a Microcosm-Based Study.

Front Microbiol 2018 21;9:2815. Epub 2018 Nov 21.

Microbiology, School of Natural Sciences, Ryan Institute, National University of Ireland, Galway, Ireland.

Bioremediation offers a sustainable approach for removal of polycyclic aromatic hydrocarbons (PAHs) from the environment; however, information regarding the microbial communities involved remains limited. In this study, microbial community dynamics and the abundance of the key gene (PAH-RHDα) encoding a ring hydroxylating dioxygenase involved in PAH degradation were examined during degradation of phenanthrene in a podzolic soil from the site of a former timber treatment facility. The 10,000-fold greater abundance of this gene associated with Gram-positive bacteria found in phenanthrene-amended soil compared to unamended soil indicated the likely role of Gram-positive bacteria in PAH degradation. Read More

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November 2018

Drying and Rainfall Shape the Structure and Functioning of Nitrifying Microbial Communities in Riverbed Sediments.

Front Microbiol 2018 16;9:2794. Epub 2018 Nov 16.

Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany.

Non-flow periods in fluvial ecosystems are a global phenomenon. Streambed drying and rewetting by sporadic rainfalls could drive considerable changes in the microbial communities that govern stream nitrogen (N) availability at different temporal and spatial scales. We performed a microcosm-based experiment to investigate how dry period duration (DPD) (0, 3, 6, and 9 weeks) and magnitude of sporadic rewetting by rainfall (0, 4, and 21 mm applied at end of dry period) affected stocks of N in riverbed sediments, ammonia-oxidizing bacteria (AOB) and archaea (AOA) and rates of ammonia oxidation (AO), and emissions of nitrous oxide (NO) to the atmosphere. Read More

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November 2018