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https://www.readbyqxmd.com/read/28732335/characteristics-and-source-apportionment-of-pm2-5-during-persistent-extreme-haze-events-in-chengdu-southwest-china
#1
Lulu Li, Qinwen Tan, Yuanhang Zhang, Miao Feng, Yu Qu, Junling An, Xingang Liu
Based on detailed data from Chengdu Plain (CP) from 6 January to 16 January, two typical haze episodes were analyzed to clarify the haze formation mechanism in winter. Weather conditions, chemical compositions, secondary pollutant transformation, optical properties of aerosols, the potential source contribution function (PSCF) and source apportionment were studied. The planetary boundary layer (PBL) height decreased distinctly during the haze episodes and restrained air pollutant vertical dispersion. As the haze worsened, the value of PBL × PM2...
July 18, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28732313/biomechanics-of-cell-rearrangements-in-drosophila
#2
REVIEW
Boris Guirao, Yohanns Bellaïche
To acquire their adequate size and shape, living tissues grow and substantially deform as they develop. To do so, the cells making up the tissue can grow and deform as well, but they can also divide, intercalate and die. Among those cell behaviors, cell intercalation, also named cell rearrangement, is a major contributor to the morphogenesis of many cohesive tissues since it enables tissues to drastically deform as they develop while keeping their cohesiveness and avoiding extreme deformation of their cells...
July 18, 2017: Current Opinion in Cell Biology
https://www.readbyqxmd.com/read/28732271/a-rare-anomaly-of-the-right-superior-pulmonary-vein-report-of-a-case
#3
Yoshinobu Ichiki, Kesei Kakizoe, Takayuki Hamatsu, Taketoshi Suehiro, Makiko Koike, Fumihiro Tanaka, Keizo Sugimachi
INTRODUCTION: Although there are a lot of variations of pulmonary veins (PVs) including dangerous type that could cause serous complications during the surgery, limited information has been reported about these variations. We have experienced an extremely rare anomaly of the right superior PV. PRESENTATION OF CASE: A 74-year-old man patient with right lung cancer visited our hospital. Chest computed tomography (CT) revealed a pulmonary nodule in the right lower lobe...
July 6, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28732265/chronic-work-stress-and-decreased-vagal-tone-impairs-decision-making-and-reaction-time-in-jockeys
#4
Kathleen Landolt, Paul Maruff, Ben Horan, Michael Kingsley, Glynda Kinsella, Paul D O'Halloran, Matthew W Hale, Bradley J Wright
The inverse relationship between acute stress and decision-making is well documented, but few studies have investigated the impact of chronic stress. Jockeys work exhaustive schedules and have extremely dangerous occupations, with safe performance requiring quick reaction time and accurate decision-making. We used the effort reward imbalance (ERI) occupational stress model to assess the relationship of work stress with indices of stress physiology and decision-making and reaction time. Jockeys (N=32) completed computerised cognitive tasks (Cogstate) on two occasions; September and November (naturally occurring lower and higher stress periods), either side of an acute stress test...
July 14, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28732263/proteomic-analysis-of-naturally-occurring-boron-tolerant-plant-gypsophila-sphaerocephala-l-in-response-to-high-boron-concentration
#5
Huseyin Tombuloglu, Guzin Tombuloglu, Mehmet Serdal Sakcali, Ali Turkan, Khalid Rehman Hakeem, Hesham F Alharby, Shah Fahd, Waseem Mohammed Abdul
Gypsophila sphaerocephala is a naturally Boron (B) tolerant species that can grow around the B mining areas in Turkey, where the B concentration in soil reaches a lethal dose for plants (up to ∼8900mgkg(-1) (∼140mM). While its interesting survival capacity in extremely B containing soils, any molecular research has been conducted to understand its high tolerance mechanism yet. In the present study, we have performed a proteomic analysis of this plant to understand its high tolerance towards B-stress. Seedlings of G...
July 4, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28732212/ualcan-a-portal-for-facilitating-tumor-subgroup-gene-expression-and-survival-analyses
#6
Darshan S Chandrashekar, Bhuwan Bashel, Sai Akshaya Hodigere Balasubramanya, Chad J Creighton, Israel Ponce-Rodriguez, Balabhadrapatruni V S K Chakravarthi, Sooryanarayana Varambally
Genomics data from The Cancer Genome Atlas (TCGA) project has led to the comprehensive molecular characterization of multiple cancer types. The large sample numbers in TCGA offer an excellent opportunity to address questions associated with tumo heterogeneity. Exploration of the data by cancer researchers and clinicians is imperative to unearth novel therapeutic/diagnostic biomarkers. Various computational tools have been developed to aid researchers in carrying out specific TCGA data analyses; however there is need for resources to facilitate the study of gene expression variations and survival associations across tumors...
July 18, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28732151/patients-attitudes-and-experiences-of-disease-modifying-anti-rheumatic-drugs-in-rheumatoid-arthritis-and-spondyloarthritis-a-qualitative-synthesis
#7
Ayano Kelly, Kathleen Tymms, David J Tunnicliffe, Daniel Sumpton, Chandima Perera, Kieran Fallon, Jonathan C Craig, Walter Abhayaratna, Allison Tong
OBJECTIVES: Non-adherence to disease-modifying anti-rheumatic drugs (DMARDS) in rheumatoid arthritis (RA) and spondyloarthritis (SpA) results in increased disease activity and symptoms and poorer quality of life. We aimed to describe patients' attitudes and experiences of DMARDs in RA and SpA to inform strategies to improve medication adherence. METHODS: Databases (MEDLINE, Embase, PsycINFO, CINAHL) were searched to January 2016. Thematic synthesis was used to analyze the findings...
July 21, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28732062/a-drosophila-model-for-toxicogenomics-genetic-variation-in-susceptibility-to-heavy-metal-exposure
#8
Shanshan Zhou, Sarah E Luoma, Genevieve E St Armour, Esha Thakkar, Trudy F C Mackay, Robert R H Anholt
The genetic factors that give rise to variation in susceptibility to environmental toxins remain largely unexplored. Studies on genetic variation in susceptibility to environmental toxins are challenging in human populations, due to the variety of clinical symptoms and difficulty in determining which symptoms causally result from toxic exposure; uncontrolled environments, often with exposure to multiple toxicants; and difficulty in relating phenotypic effect size to toxic dose, especially when symptoms become manifest with a substantial time lag...
July 21, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28732003/-diffuse-type-of-gastric-cancer-adenocarcinoma-in-10-years-old-boy-report-of-a-case
#9
Nery Romero, Ingrid Zegarra, Hugo Delgado
We report a rare case of diffuse type of gastric cancer with signet ring cells in 10 years old boy who was admitted with a 12 months history with weight loss, dysphagia to solids first and to liquids later, anorexia, fatigue, dizziness, vomiting and later, with pain in the left upper quadrant. On examination, he appeared pale, malnourished, with café-au- lait spots over the trunk and extremities. Laboratory tests showed; Hb 7.5 g, albumin 2.62 g, Thevenon positive on stools. Abdominal ultrasound examination showed periaortic masses and diffuse space occupying lesions in the liver...
April 2017: Revista de Gastroenterología del Perú: órgano Oficial de la Sociedad de Gastroenterología del Perú
https://www.readbyqxmd.com/read/28731792/the-evolution-of-energetic-scaling-across-the-vertebrate-tree-of-life
#10
Josef C Uyeda, Matthew W Pennell, Eliot T Miller, Rafael Maia, Craig R McClain
Metabolism is the link between ecology and physiology-it dictates the flow of energy through individuals and across trophic levels. Much of the predictive power of metabolic theories of ecology derives from the scaling relationship between organismal size and metabolic rate. There is growing evidence that this scaling relationship is not universal, but we have little knowledge of how it has evolved over macroevolutionary time. Here we develop a novel phylogenetic comparative method to investigate how often and in which clades the macroevolutionary dynamics of the metabolic scaling have changed...
August 2017: American Naturalist
https://www.readbyqxmd.com/read/28731672/-urticaria-pigmentosa-clinical-and-therapeutic-aspects-for-the-paediatrician
#11
Catherina Moll-Manzur, Esteban Araos-Baeriswyl, Camila Downey, María T Dossi
Urticaria pigmentosa, also known as maculopapular mastocytosis, is the most common type of paediatric mastocytosis. It presents with yellow to brown macules or papules, usually located on trunk and extremities. Regarding its diagnostic and therapeutic implications, the objective of this article is to serve as an update for the paediatrician on the most relevant aspects of this pathology.
August 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28731670/calcaneus-osteomyelitis-secondary-to-guthrie-test-case-report
#12
Tugce Tural Kara, Tugba Erat, Halil Ozdemir, Aysun Yahsi, Suat Fitoz, Ergin Ciftci, Erdal Incea
Calcaneus osteomyelitis is a rare infection in newborns. Invasive procedures, prematurity and low birth wight are some causative factors. The clinical signs may be mild. We report a neonate with calcaneous osteomyelitis which was secondary to a Guthrie test sample. She was admitted to hospital with swelling, redness and increased temperature on her heel. Superficial tissue ultrasound showed fluid collection with heavy content was observed on the posterior of the right foot. Puncture and drainage was performed and methicillin-susceptible Staphylococcus aureus was isolated from the drainage culture...
August 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28731667/-henoch-schonlein-purpura-involving-the-penis-a-case-report
#13
Borja Croche Santander, Elena Campos, Adela Sánchez, Laura Marcos, Isabel Díaz, Cristóbal Toro
Schonlein-Henoch purpura accounts for the majority of cases of systemic vasculitis in children. Classical presentation is characterized by palpable purpura, glomerulonephritis, arthralgias and abdominal pain. Although genitourinary manifestations, in form of testicular and scrotal involvement, have been widely described, penile involvement remains an extremely rare complication. We report a case of a 6-year-old boy who presented with purpuric rash on the glans, prepuce and penile shaft, with painful edema in the penile region...
August 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28731665/-nummular-dermatitis-report-of-two-cases-in-children
#14
Jacinto Martínez-Blanco, Verónica García-González, Javier González-García, Cristina Suárez-Castañón
Nummular eczema or dermatitis is an uncommon paediatric pathology. It is presented as red-purplish small papules and vesicles that join to form exudative circular patches and then to eczematous or lichenified patches with discoid shape. The lesions appear predominantly on the extensor surface of extremities, although they can appear in trunk, hands or feet. This pathology has a clinical diagnosis; only few cases require complementary test. The topical corticosteroids are the mainstay of the treatment, and the causal treatment whether an infectious trigger is found...
August 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28731555/who-does-nutrition-prevention-work-in-queensland-an-investigation-of-structural-and-political-workforce-reforms
#15
Helen Anna Vidgen, Meg Adam, Danielle Gallegos
AIM: This study aimed (i) to determine the change in the number of government-funded nutrition positions following structural and political reforms and (ii) to describe the remaining workforce available to do nutrition prevention work, including student placements, in Queensland. METHODS: Positions funded by the Queensland government were counted using departmental human resource data and compared with data collected 4 years earlier. Positions not funded by the government were identified using formal professional networks and governance group lists...
February 2017: Nutrition & Dietetics: the Journal of the Dietitians Association of Australia
https://www.readbyqxmd.com/read/28731537/frailty-and-cancer-implications-for-oncology-surgery-medical-oncology-and-radiation-oncology
#16
REVIEW
Cecilia G Ethun, Mehmet A Bilen, Ashesh B Jani, Shishir K Maithel, Kenneth Ogan, Viraj A Master
Answer questions and earn CME/CNE The concept of frailty has become increasingly recognized as one of the most important issues in health care and health outcomes and is of particular importance in patients with cancer who are receiving treatment with surgery, chemotherapy, and radiotherapy. Because both cancer itself, as well as the therapies offered, can be significant additional stressors that challenge a patient's physiologic reserve, the incidence of frailty in older patients with cancer is especially high-it is estimated that over one-half of older patients with cancer have frailty or prefrailty...
July 21, 2017: CA: a Cancer Journal for Clinicians
https://www.readbyqxmd.com/read/28731531/solitary-splenic-metastasis-from-lung-adenocarcinoma-a-case-report
#17
Kantaro Hara, Nobuhiro Izumi, Takuma Tsukioka, Hiroaki Komatsu, Michihito Toda, Hikaru Miyamoto, Satoshi Suzuki, Takuya Kimura, Toshihiko Shibata, Noritoshi Nishiyama
Solitary splenic metastasis is extremely rare, with only 27 reported cases in the literature. An 81-year-old woman was referred to our hospital for treatment of pulmonary and splenic lesions. Chest computed tomography showed a small lung nodule in the right upper lobe, abdominal computed tomography showed an 8 cm splenic mass with abnormal accumulation, and positron emission tomography revealed a maximum standardized uptake value of 7.9. She had elevated serum cancer antigen 19-9 (1847 U/mL) and carcinoembryonic antigen concentrations (17...
July 21, 2017: Thoracic Cancer
https://www.readbyqxmd.com/read/28731493/lower-extremity-dialysis-arteriovenous-graft-patency-preservation-due-to-traumatic-fistula-to-adjacent-vein
#18
Michael Oster, Offer Galili, Alicia Nachtigal, Dan Hebron
No abstract text is available yet for this article.
July 20, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28731472/high-abundance-and-expression-of-transposases-in-bacteria-from-the-baltic-sea
#19
Theoden Vigil-Stenman, Karolina Ininbergs, Birgitta Bergman, Martin Ekman
Transposases are mobile genetic elements suggested to have an important role in bacterial genome plasticity and host adaptation but their transcriptional activity in natural bacterial communities is largely unexplored. Here we analyzed metagenomes and -transcriptomes of size fractionated (0.1-0.8, 0.8-3.0 and 3.0-200 μm) bacterial communities from the brackish Baltic Sea, and adjacent marine waters. The Baltic Sea transposase levels, up to 1.7% of bacterial genes and 2% of bacterial transcripts, were considerably higher than in marine waters and similar to levels reported for extreme environments...
July 21, 2017: ISME Journal
https://www.readbyqxmd.com/read/28731346/kinetics-of-light-induced-intramolecular-energy-transfer-in-different-conformational-states-of-nadh
#20
Zsuzsanna Heiner, Thomas Roland, Jérémie Léonard, Stefan Haacke, Géza I Groma
When bound to a protein, the coenzyme NAD+/NADH typically exists in an extended conformation, while in aqueous solutions it can be characterized by an equilibrium of folded and unfolded structures. It was recognized long ago that in the folded conformation light absorption at the adenine ring initiates an effective energy transfer (ET) towards the nicotinamide group, but the mechanism of this process is still unexplored. Here we apply ultrafast transient absorption measurements on NADH combined with compartmental model analysis for following the kinetics of the ET...
July 21, 2017: Journal of Physical Chemistry. B
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