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https://www.readbyqxmd.com/read/28822312/ossifying-fibromyxoid-tumor-of-the-trunk-mimicking-hydatid-cyst-a-case-report
#1
Nihed Abdessayed, Sarra Mestiri, Houssem Ammar, Ahlem Bdioui, Amine Chhaidar, Omar Toumi, Nozha Mhamdi, Rahul Gupta, Marwa Guerfela, Moncef Mokni
INTRODUCTION: Ossifying fibromyxoid tumor (OFMT) is a rare lesion that generally occurs in the soft tissues of proximal limbs, head or neck and presents as a slowly growing mass. Abdominal or trunk locations are extremely rare. PRESENTATION OF CASE: We report a case of 50-year-old man who presented with a painless, slow growing epigastric mass for 5 years. Radiologic assessment revealed a well circumscribed median subcutaneous parietal mass lesion present in front of the xiphoid process suspicious of a calcified hydatid cyst...
July 22, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28822305/an-optimal-control-approach-to-design-entire-relaxation-dispersion-experiments
#2
Thoa T Nguyen, Steffen J Glaser
A general approach is introduced to optimize experiments for the analysis of spin systems in the presence of chemical exchange. Rather than optimizing individual pulse sequence elements, such as refocusing pulses, entire relaxation dispersion sequences are optimized in the form of a single shaped pulse. This is achieved by defining a performance index that is only based on the remaining signal after the relaxation dispersion sequence for a range of exchange, relaxation, offset, and rf inhomogeneity parameters...
July 31, 2017: Journal of Magnetic Resonance
https://www.readbyqxmd.com/read/28822259/ambient-air-pollution-temperature-and-kawasaki-disease-in-shanghai-china
#3
Zhijing Lin, Xia Meng, Renjie Chen, Guoying Huang, Xiaojing Ma, Jingjing Chen, Min Huang, Meirong Huang, Yonghao Gui, Chen Chu, Fang Liu, Haidong Kan
Kawasaki disease (KD) is a kind of pediatric vasculitis of unknown etiology which mainly affects the development of coronary artery aneurysms. Few studies have explored the potential environmental risk factors on KD incidence. We performed a time-series analysis to investigate the associations between air pollution and temperature and KD in Shanghai, China. We collected daily-hospitalized KD patients that were admitted in major pediatric specialty hospitals located in the urban areas of Shanghai from 2001 to 2010...
August 12, 2017: Chemosphere
https://www.readbyqxmd.com/read/28822249/en-masse-pyrolysis-of-flexible-printed-circuit-board-wastes-quantitatively-yielding-environmental-resources
#4
Jang Won Kim, Albert S Lee, Seunggun Yu, Jeong Whan Han
This paper reports the recycling of flexible printed circuit board (FPCB) waste through carbonization of polyimide by dual pyrolysis processes. The organic matter was recovered as pyrolyzed oil at low temperatures, while valuable metals and polyimide-derived carbon were effectively recovered through secondary high temperature pyrolysis. The major component of organics extracted from FPCB waste comprised of epoxy resins were identified as pyrolysis oils containing bisphenol-A. The valuable metals (Cu, Ni, Ag, Sn, Au, Pd) in waste FPCB were recovered as granular shape and quantitatively analyzed via ICP-OES...
August 8, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28822238/the-environmental-injustice-of-beauty-framing-chemical%C3%A2-exposures-from-beauty-products-as-a-health%C3%A2-disparities-concern
#5
Ami R Zota, Bhavna Shamasunder
The obstetrics-gynecology community has issued a call to action to prevent toxic environmental chemical exposures and their threats to healthy human reproduction. Recent committee opinions recognize that vulnerable and underserved women may be impacted disproportionately by environmental chemical exposures and recommend that reproductive health professionals champion policies that secure environmental justice. Beauty product use is an understudied source of environmental chemical exposures. Beauty products can include reproductive and developmental toxicants such as phthalates and heavy metals; however, disclosure requirements are limited and inconsistent...
August 14, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28822084/giant-biatrial-myxoma-with-two-different-gross-findings
#6
Taiyo Kuroda, Yukifusa Yokoyama, Satoshi Yuhara, Hideyuki Okawa, Hiroki Hasegawa, Jun Yokote, Shuji Tamaki, Shinji Mii
We experienced a giant biatrial myxoma concomitant with hepatocellular carcinoma. Most of myxomas originate from the left atrium, and biatrial myxomas are extremely rare. Excision of the giant cardiac tumor was performed to avoid risks of life-threatening complications. The resected mass was grossly composed of two parts with the border of interatrial septum and with the shape of peanut shell. Although microscopic examinations revealed enlarged vessels, hemorrhages and hemosiderosis in the left part and high cellularity with chronic inflammation in the right part, spindle-shaped cells in a loose myxoid stroma were observed in both parts of the tumor, consistent with the diagnosis of myxoma...
August 18, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28822008/label-free-sensing-and-classification-of-old-stored-blood
#7
Jun Hong Park, Taesik Go, Sang Joon Lee
Transfusion is crucial in surgical operation and anemia treatment. However, several hemorheological properties of blood are adversely altered during blood storage. After transfusion, these adverse alterations are related with decrease of oxygen and ion transport in blood circulation, which increase the mortality of transfused patients. Therefore, accurate sensing of whether a blood supply is still viable for transfusion or not is extremely important. In this study, a H-shaped microfluidic device and digital in-line holographic microscopy were employed to measure temporal variations of blood viscosity and the optical focusing property of erythrocytes during blood storage...
August 18, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28821948/mucilaginibacter-ginsenosidivorans-sp-nov-isolated-from-soil-of-ginseng-field
#8
Minseok M Kim, Muhammad Zubair Siddiqi, Wan-Taek Im
A Gram-reaction-negative, aerobic, nonmotile, nonspore-forming, and rod-shaped bacterial strain designated Gsoil 3017(T) was isolated from soil of ginseng field and investigated by phenotypic and phylogenetic analyses. Strain Gsoil 3017(T) grew at 10-37 °C (optimal growth at 30 °C) and at pH 5.5-8.0 (optimal growth at pH 7) on R2A and nutrient agar without additional NaCl as a supplement. Strain Gsoil 3017(T) possessed β-glucosidase activity, which was responsible for its ability to transform ginsenosides Rb1, Rc, and Rd (the three dominant active components of ginseng) to F2 and C-K, respectively...
August 18, 2017: Current Microbiology
https://www.readbyqxmd.com/read/28821872/microbiota-in-the-coelomic-fluid-of-two-common-coastal-starfish-species-and-characterization-of-an-abundant-helicobacter-related-taxon
#9
Satoshi Nakagawa, Hikari Saito, Akihiro Tame, Miho Hirai, Hideyuki Yamaguchi, Takashi Sunata, Masanori Aida, Hisashi Muto, Shigeki Sawayama, Yoshihiro Takaki
Marine invertebrates associate with diverse microorganisms. Microorganisms even inhabit coelomic fluid (CF), namely, the fluid filling the main body cavity of echinoderms. The CF microbiota potentially impacts host health and disease. Here, we analysed the CF microbiota in two common coastal starfish species, Patiria pectinifera and Asterias amurensis. Although microbial community structures were highly variable among individual starfish, those of P. pectinifera were compositionally similar to those in the surrounding seawater...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821843/broadband-polarization-conversion-with-anisotropic-plasmonic-metasurfaces
#10
Wei Cao, Xiaodong Yang, Jie Gao
Metasurfaces offer exciting opportunities that enable precise control of light propagation, optical intensity, phase and polarization. Plasmonic metasurface based quarter-wave plates have been recently studied to realize the conversion between linear polarization and circular polarization. However, it is still quite challenging to directly measure the birefringent phase retardation introduced by metasurface wave plates with a reliable technique. Here, we report a high-performance broadband metasurface quarter-wave plate made of anisotropic T-shaped plasmonic antennas in near-infrared wavelength range, where the achromatic nearly 90° transmitted phase retardation through the metasurface is precisely characterized with an optical vortex based interferometric approach...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821838/biogeography-shaped-the-metabolome-of-the-genus-espeletia-a-phytochemical-perspective-on-an-andean-adaptive-radiation
#11
Guillermo F Padilla-González, Mauricio Diazgranados, Fernando B Da Costa
The páramo ecosystem has the highest rate of diversification across plant lineages on earth, of which the genus Espeletia (Asteraceae) is a prime example. The current distribution and molecular phylogeny of Espeletia suggest the influence of Andean geography and past climatic fluctuations on the diversification of this genus. However, molecular markers have failed to reveal subtle biogeographical trends in Espeletia diversification, and metabolomic evidence for allopatric segregation in plants has never been reported...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821828/different-elevational-patterns-of-rodent-species-richness-between-the-southern-and-northern-slopes-of-a-mountain
#12
Ling-Ying Shuai, Chun-Lei Ren, Wen-Bo Yan, Yan-Ling Song, Zhi-Gao Zeng
Studies on elevational gradients in biodiversity have accumulated in recent decades. However, few studies have compared the elevational patterns of diversity between the different slopes of a single mountain. We investigated the elevational distribution of rodent diversity (alpha and beta diversity) and its underlying mechanisms along the southern and northern slopes of Mt. Taibai, the highest mountain in the Qinling Mountains, China. The species richness of rodents on the two slopes showed distinct distribution patterns, with a monotonically decreasing pattern found along the southern slope and a hump-shaped elevational pattern evident along the northern slope...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821809/impact-of-varying-social-experiences-during-life-history-on-behaviour-gene-expression-and-vasopressin-receptor-gene-methylation-in-mice
#13
Carina Bodden, Daniel van den Hove, Klaus-Peter Lesch, Norbert Sachser
Both negative and positive social experiences during sensitive life phases profoundly shape brain and behaviour. Current research is therefore increasingly focusing on mechanisms mediating the interaction between varying life experiences and the epigenome. Here, male mice grew up under either adverse or beneficial conditions until adulthood, when they were subdivided into groups exposed to situations that either matched or mismatched previous conditions. It was investigated whether the resulting four life histories were associated with changes in anxiety-like behaviour, gene expression of selected genes involved in anxiety and stress circuits, and arginine vasopressin receptor 1a (Avpr1a) gene methylation...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821794/a-twice-electrochemical-etching-method-to-fabricate-superhydrophobic-superhydrophilic-patterns-for-biomimetic-fog-harvest
#14
Xiaolong Yang, Jinlong Song, Junkai Liu, Xin Liu, Zhuji Jin
Superhydrophobic-superhydrophilic patterned surfaces have attracted more and more attention due to their great potential applications in the fog harvest process. In this work, we developed a simple and universal electrochemical-etching method to fabricate the superhydrophobic-superhydrophilic patterned surface on metal superhydrophobic substrates. The anti-electrochemical corrosion property of superhydrophobic substrates and the dependence of electrochemical etching potential on the wettability of the fabricated dimples were investigated on Al samples...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821743/cherenkov-radiation-control-via-self-accelerating-wave-packets
#15
Yi Hu, Zhili Li, Benjamin Wetzel, Roberto Morandotti, Zhigang Chen, Jingjun Xu
Cherenkov radiation is a ubiquitous phenomenon in nature. It describes electromagnetic radiation from a charged particle moving in a medium with a uniform velocity larger than the phase velocity of light in the same medium. Such a picture is typically adopted in the investigation of traditional Cherenkov radiation as well as its counterparts in different branches of physics, including nonlinear optics, spintronics and plasmonics. In these cases, the radiation emitted spreads along a "cone", making it impractical for most applications...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821726/the-switching-of-strong-spin-wave-beams-in-patterned-garnet-films
#16
R Gieniusz, P Gruszecki, M Krawczyk, U Guzowska, A Stognij, A Maziewski
The application of spin waves in communication with information encoded in amplitude and phase could replace or enhance existing microelectronic and microwave devices with significantly decreased energy consumption. Spin waves (SW) are usually transported in a magnetic material shaped to act as a waveguide. However, the implementation of SW transport and switching in plane homogeneous magnetic films and running as a narrow beam with a small divergence angle still present a challenge. We propose a realization of a strong SW switchers based on a patterned yttrium iron garnet (YIG) film that could serve as a magnonic fundamental building block...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821671/learning-and-stress-shape-the-reward-response-patterns-of-serotonin-neurons
#17
Zhong Weixin, Yi Li, Qiru Feng, Minmin Luo
The ability to predict reward promotes animal survival. Both dopamine neurons in the ventral tegmental area (VTA) and serotonin neurons in the dorsal raphe nucleus (DRN) participate in reward processing. Although the learning effects on dopamine neurons have been extensively characterized, it remains largely unknown how the response of serotonin neurons evolves during learning. Moreover, while stress is known to strongly influence reward-related behavior, we know very little about how stress modulates neuronal reward responses...
August 8, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28821655/goal-directed-visual-processing-differentially-impacts-human-ventral-and-dorsal-visual-representations
#18
Maryam Vaziri-Pashkam, Yaoda Xu
Recent studies have challenged the ventral/"what" and dorsal/"where" two-visual-processing-pathway view by showing the existence of "what" and "where" information in both pathways. Is the two-pathway distinction still valid? Here, we examined how goal-directed visual information processing may differentially impact visual representations in these two pathways. Using fMRI and MVPA, in three experiments on human participants (57% females), by manipulating whether color or shape were task relevant and how they were conjoined, we examined shape-based object category decoding in occipito-temporal and parietal regions...
August 14, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28821593/light-sheet-microscopy-imaging-of-light-absorption-and-photosynthesis-distribution-in-plant-tissue
#19
Mads Lichtenberg, Erik Christian Løvbjerg Trampe, Thomas Craig Vogelmann, Michael Kühl
In vivo variable-chlorophyll-fluorescence measurements of PSII quantum yields in optically dense systems are complicated by steep tissue light gradients due to scattering and absorption. Consequently, externally measured effective PSII quantum yields may be composed of signals derived from cells differentially exposed to actinic light, where cells located deeper inside tissues receive lower irradiance than cells closer to the surface, and can display distinct photophysiological status. We demonstrate how measured distributions of PSII quantum yields in plant tissue change under natural tissue light gradients as compared to conventionally measured quantum yields with even exposure to actinic light...
August 18, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28821552/differences-in-temperature-and-water-chemistry-shape-distinct-diversity-patterns-in-thermophilic-microbial-communities
#20
Cecilia M Chiriac, Edina Szekeres, Knut Rudi, Andreea Baricz, Adriana Hegedus, Nicolae Dragoş, Cristian Coman
This study presents the biodiversity and ecology of microbial mats developed in thermal gradients (20-65 °C) in the surroundings of three drillings (CH, CI, MB) tapping a hyperthermal aquifer from Romania. Using a metabarcoding approach, 16S rRNA genes were sequenced from both DNA and RNA transcripts (cDNA) and compared. The relationships between the microbial diversity and the physico-chemical factors were explored. Additionally, the cDNA data was used for in silico functionality predictions, bringing new insights into the functional potential and dynamics of these communities...
August 18, 2017: Applied and Environmental Microbiology
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