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Anne M Stowman, Alexandra W Hickman, Ileana S Mauldin, Adela Mahmutovic, Alejandro A Gru, Craig L Slingluff
Desmoplastic melanomas (DM) have unique and challenging clinical presentations and histomorphology. A characteristic feature is the presence of scattered lymphoid aggregates. However, the nature of these aggregates is not defined. We hypothesized that they may be tertiary lymphoid structures (TLS), and may be associated with programmed death ligand 1 (PD-L1) expression. We searched our tissue database for 'pure' DMs and for scars as control tissues, collected clinical information, and reviewed H&E histology...
March 13, 2018: Melanoma Research
Élodie Chrabaszcz, Luisa Laureti, Vincent Pagès
The genome of all organisms is constantly threatened by numerous agents that cause DNA damage. When the replication fork encounters an unrepaired DNA lesion, two DNA damage tolerance pathways are possible: error-prone translesion synthesis (TLS) that requires specialized DNA polymerases, and error-free damage avoidance that relies on homologous recombination (HR). The balance between these two mechanisms is essential since it defines the level of mutagenesis during lesion bypass, allowing genetic variability and adaptation to the environment, but also introduces the risk of generating genome instability...
February 26, 2018: Nucleic Acids Research
Amy J Spooner, Leanne M Aitken, Wendy Chaboyer
BACKGROUND: Miscommunication during handover has been linked to adverse patient events and is an international patient safety priority. Despite the development of handover resources, standardized handover tools for nursing team leaders (TLs) in intensive care are limited. AIMS: The study aim was to implement and evaluate an evidence-based electronic minimum data set for nursing TL shift-to-shift handover in the intensive care unit using the knowledge-to-action (KTA) framework...
March 8, 2018: Worldviews on Evidence-based Nursing
Kathryn Volkening, Brian Keller, Cheryl Leysta-Lantz, Michael J Strong
Tar DNA binding protein of 43kDa (TDP-43) is a dual function RNA/DNA binding protein with varied cellular functions. In degenerating motor neurons in ALS, TDP-43 relocalizes from the nucleus to the cytosol where it is sequestered into inclusions. It is likely that the pathogenic role of TDP-43 in ALS can involve either a gain or a loss of function, depending on the nature of its RNA or protein interactor. However, while TDP-43 binding partners have been identified in a range of model systems and from the human brain, interactors from human spinal cord tissue have not...
March 7, 2018: Journal of Proteome Research
G von Amsberg
BACKGROUND: Uro-oncological emergencies can be caused by the tumor, treatment complications, or non-oncological diseases. This review focuses on chemotherapy-associated emergencies, especially febrile neutropenia (FN), tumor lysis syndrome (TLS), and extravasations. AIM: The goal is to provide an overview on the most relevant chemotherapy-associated emergencies and treatment methods. MATERIALS AND METHODS: The ESMO (European Society of Medical Oncology), EORTC (European Organization for Research and Treatment of Cancer), and S3 guidelines were used for the preparation of this review and a PubMed search was performed for "febrile neutropenia", "extravasation", and "tumor lysis syndrome"...
March 5, 2018: Der Urologe. Ausg. A
Yadvinder Malhi, Tobias Jackson, Lisa Patrick Bentley, Alvaro Lau, Alexander Shenkin, Martin Herold, Kim Calders, Harm Bartholomeus, Mathias I Disney
Terrestrial laser scanning (TLS) opens up the possibility of describing the three-dimensional structures of trees in natural environments with unprecedented detail and accuracy. It is already being extensively applied to describe how ecosystem biomass and structure vary between sites, but can also facilitate major advances in developing and testing mechanistic theories of tree form and forest structure, thereby enabling us to understand why trees and forests have the biomass and three-dimensional structure they do...
April 6, 2018: Interface Focus
M I Disney, M Boni Vicari, A Burt, K Calders, S L Lewis, P Raumonen, P Wilkes
Terrestrial laser scanning (TLS) is providing exciting new ways to quantify tree and forest structure, particularly above-ground biomass (AGB). We show how TLS can address some of the key uncertainties and limitations of current approaches to estimating AGB based on empirical allometric scaling equations (ASEs) that underpin all large-scale estimates of AGB. TLS provides extremely detailed non-destructive measurements of tree form independent of tree size and shape. We show examples of three-dimensional (3D) TLS measurements from various tropical and temperate forests and describe how the resulting TLS point clouds can be used to produce quantitative 3D models of branch and trunk size, shape and distribution...
April 6, 2018: Interface Focus
Markku Åkerblom, Pasi Raumonen, Eric Casella, Mathias I Disney, F Mark Danson, Rachel Gaulton, Lucy A Schofield, Mikko Kaasalainen
We present an algorithm and an implementation to insert broadleaves or needleleaves into a quantitative structure model according to an arbitrary distribution, and a data structure to store the required information efficiently. A structure model contains the geometry and branching structure of a tree. The purpose of this work is to offer a tool for making more realistic simulations of tree models with leaves, particularly for tree models developed from terrestrial laser scanning (TLS) measurements. We demonstrate leaf insertion using cylinder-based structure models, but the associated software implementation is written in a way that enables the easy use of other types of structure models...
April 6, 2018: Interface Focus
D A Orwig, P Boucher, I Paynter, E Saenz, Z Li, C Schaaf
Contemporary terrestrial laser scanning (TLS) is being used widely in forest ecology applications to examine ecosystem properties at increasing spatial and temporal scales. Harvard Forest (HF) in Petersham, MA, USA, is a long-term ecological research (LTER) site, a National Ecological Observatory Network (NEON) location and contains a 35 ha plot which is part of Smithsonian Institution's Forest Global Earth Observatory (ForestGEO). The combination of long-term field plots, eddy flux towers and the detailed past historical records has made HF very appealing for a variety of remote sensing studies...
April 6, 2018: Interface Focus
Ian Paynter, Daniel Genest, Francesco Peri, Crystal Schaaf
Volumetric models with known biases are shown to provide bounds for the uncertainty in estimations of volume for ecologically interesting objects, observed with a terrestrial laser scanner (TLS) instrument. Bounding cuboids, three-dimensional convex hull polygons, voxels, the Outer Hull Model and Square Based Columns (SBCs) are considered for their ability to estimate the volume of temperate and tropical trees, as well as geomorphological features such as bluffs and saltmarsh creeks. For temperate trees, supplementary geometric models are evaluated for their ability to bound the uncertainty in cylinder-based reconstructions, finding that coarser volumetric methods do not currently constrain volume meaningfully, but may be helpful with further refinement, or in hybridized models...
April 6, 2018: Interface Focus
Ahmed Elsherif, Rachel Gaulton, Jon Mills
Vegetation water content, quantified as the leaf equivalent water thickness (EWT), can serve as an indicator of vegetation stress. The intensity data recorded by terrestrial laser scanning (TLS) instruments, operating at shortwave infrared wavelengths, can be used to estimate the three-dimensional distribution of EWT, after a full and rigorous calibration for the range and incidence angle effects. However, TLS instruments do not record the incidence angles automatically, making calibration challenging. In this study, intensity data from two commercially available TLS instruments (Leica P40, 1550 nm shortwave infrared wavelength, and Leica P20, 808 nm near-infrared wavelength) were combined in a normalized difference index (NDI)...
April 6, 2018: Interface Focus
Zhan Li, Michael Schaefer, Alan Strahler, Crystal Schaaf, David Jupp
The Dual-Wavelength Echidna Lidar (DWEL), a full waveform terrestrial laser scanner (TLS), has been used to scan a variety of forested and agricultural environments. From these scanning campaigns, we summarize the benefits and challenges given by DWEL's novel coaxial dual-wavelength scanning technology, particularly for the three-dimensional (3D) classification of vegetation elements. Simultaneous scanning at both 1064 nm and 1548 nm by DWEL instruments provides a new spectral dimension to TLS data that joins the 3D spatial dimension of lidar as an information source...
April 6, 2018: Interface Focus
Sabina Roşca, Juha Suomalainen, Harm Bartholomeus, Martin Herold
Terrestrial laser scanning (TLS) and unmanned aerial vehicles (UAVs) equipped with digital cameras have attracted much attention from the forestry community as potential tools for forest inventories and forest monitoring. This research fills a knowledge gap about the viability and dissimilarities of using these technologies for measuring the top of canopy structure in tropical forests. In an empirical study with data acquired in a Guyanese tropical forest, we assessed the differences between top of canopy models (TCMs) derived from TLS measurements and from UAV imagery, processed using structure from motion...
April 6, 2018: Interface Focus
Sanna Kaasalainen, Markku Åkerblom, Olli Nevalainen, Teemu Hakala, Mikko Kaasalainen
Multispectral terrestrial laser scanning (TLS) is an emerging technology. Several manufacturers already offer commercial dual or three wavelength airborne laser scanners, while multispectral TLS is still carried out mainly with research instruments. Many of these research efforts have focused on the study of vegetation. The aim of this paper is to study the uncertainty of the measurement of spectral indices of vegetation with multispectral lidar. Using two spectral indices as examples, we find that the uncertainty is due to systematic errors caused by the wavelength dependency of laser incidence angle effects...
April 6, 2018: Interface Focus
Justin A Kraft, Matthew L Laurent, James Matthew Green, Jessica Helm, Cooper Roberts, Swan Holt
Monitoring training and recovery are essential for exercise programming. Athletes can validly assess training load (TL) via the session rating of perceived exertion (SRPE) technique. However, it is unclear if coaches can successfully use this model. PURPOSE: This study compared coach and athlete perceptions of effort and recovery and evaluated the efficacy of perceptually-based TL monitoring. METHODS: Participants included 56 athletes (Women's volleyball, soccer, and basketball and Men's basketball) and their coaches (n = 4)...
February 27, 2018: Journal of Strength and Conditioning Research
Hiroaki Tanaka, Tatsuro Tamura, Yoshihiro Okita, Mami Yoshii, Mao Tokumoto, Yukie Go, Chie Sakimura, Soichiro Hiramatsu, Junya Nishimura, Yoshihito Yamagoe, Masakazu Yashiro, Yuichiro Miki, Takahiro Toyokawa, Kazuya Muguruma, Kosei Hirakawa, Masaichi Ohira
There are many reports on the association between infiltrating immune cells andcancer prognosis. It is generally thought that cancer cells escape from the immune surveillance system in vivo. Cells associatedwith tumor immunosuppressive mechanisms include macrophages, regulatory T cells, bone marrow-derived immunosuppressive cells(MDSC), andneutrophils. These immunosuppressive cells enhance the production of TGF-b andIL -10 andthe expression of PDL-1 by cytokines producedby stromal cells such as cancer cells andfibroblasts, thereby inducing cytotoxic T cells lymphocytes(CTL)...
February 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
Serdal Korkmaz
Hyperleukocytosis is defined as a white blood cell count greater than 100.000/μL in patients affected by acute or chronic leukemias. Hyperleukocytosis is more common in acute leukemias than in chronic leukemias. Risk factors include younger age, acute myeloid leukemia, the microgranular variant of acute promyelocytic leukemia, acute lymphoblastic leukemia and some cytogenetic abnormalities. Although it can affect any organ system, symptoms usually arise from involvement of the cerebral, pulmonary and renal microvasculature...
February 20, 2018: Transfusion and Apheresis Science
Parashu R Nyaupane, Marlon Diaz, Ann Barton, Carlos E Manzanares
The thermal lens technique is applied to vibrational overtone spectroscopy of solutions of naphthalene (C10 H8 ) in liquid hexane. The C-H fifth vibrational (Δν = 6) overtone spectrum of C10 H8 is detected at room temperature for mole fractions from 0.08 to 19 × 10-6 using n-C6 H14 as solvent. By detecting the absorption band in a 19 ppm (parts per million) solution, the peak absorption of the signal is approximately (2.2 ± 0.3) × 10-7  cm-1 . A plot of normalized integrated intensity as a function of the mole fraction of naphthalene in solution reveals a dependence of the magnitude of the signal with the probe laser wavelength...
January 1, 2018: Applied Spectroscopy
Michael W van Kalleveen, Maudy Walraven, Mathijs P Hendriks
Introduction Tumor lysis syndrome (TLS) is a life-threatening emergency caused by rapid cell death as a result of anti-tumor therapy. In the era of targeted therapy it has increasingly been observed in solid malignancies such as hepatocellular carcinoma (HCC) and renal cell carcinoma (RCC). Case We describe the case of a 58-year old man with the medical history of a memorial sloan kettering cancer centre (MSKCC) poor prognosis metastasized clear cell renal cell carcinoma (mRCC) who developed TLS within six days after initiating therapy with the tyrosine kinase inhibitor (TKI) pazopanib...
February 20, 2018: Investigational New Drugs
Iris Teubel, Elena Elchinova, Santiago Roura, Marco A Fernández, Carolina Gálvez-Montón, Pedro Moliner, Marta de Antonio, Josep Lupón, Antoni Bayés-Genís
BACKGROUND: Cross-sectional investigations report shorter telomeres in patients with heart failure (HF); however, no studies describe telomere length (TL) trajectory and its relationship with HF progression. Here we aimed to investigate telomere shortening over time and its relationship to outcomes. METHODS: Our study cohort included 101 ambulatory patients with HF. Blood samples were collected at baseline (n = 101) and at the 1-year follow-up (n = 54). Using flow-FISH analysis of circulating monocytes, we simultaneously measured three monocyte subsets-classical (CD14++ CD16- ), intermediate (CD14++ CD16+ ), and nonclassical (CD14+ CD16++ )-and their respective TLs based on FITC-labeled PNA probe hybridization...
February 20, 2018: Journal of Translational Medicine
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