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https://www.readbyqxmd.com/read/29454232/effects-of-mine-tailing-and-mixed-contamination-on-metals-trace-elements-accumulation-and-histopathology-of-the-chub-squalius-cephalus-tissues-evidence-from-three-differently-contaminated-sites-in-serbia
#1
Božidar Rašković, Vesna Poleksić, Stefan Skorić, Katarina Jovičić, Slađana Spasić, Aleksandar Hegediš, Nebojša Vasić, Mirjana Lenhardt
Chub (Squalius cephalus) specimens were collected in Korenita River seven months after spillover from the waste water of antimony mine tailing pond and compared with chub living in Kruščica reservoir (intended for water supply) and Međuvršje reservoir (influenced by intense emission of industrial, urban and rural wastewater). Concentrations of 15 elements (Al, As, B, Ba, Cd, Cr, Cu, Fe, Hg, Mn, Ni, Pb, Si, Sr, Zn) were determined in muscle, liver and gills of chub by inductively coupled plasma optical spectrometry (ICP-OES) and histopathological alterations in liver and gills were assessed...
February 14, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29454214/observation-of-the-degradation-of-three-types-of-plastic-pellets-exposed-to-uv-irradiation-in-three-different-environments
#2
Liqi Cai, Jundong Wang, Jinping Peng, Ziqing Wu, Xiangling Tan
Plastic debris represents one of the most prevalent and persistent pollution problems in the marine environment. In particular, microplastics that are mainly degraded from larger plastic debris have become a growing environmental concern. However, studies on the degradation of plastics in the aquatic environment that hydrobios reside in have been limited, while several studies regarding the degradation of plastics have been conducted under outdoor or accelerated weathering conditions. Thus, observation of the degradation of three types of virgin plastic pellets exposed to UV irradiation in three different environments (i...
February 14, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29454206/less-sensitive-of-urban-surface-to-climate-variability-than-rural-in-northern-china
#3
Rui Yao, Lunche Wang, Xin Huang, Jiangping Chen, Jiarui Li, Zigeng Niu
In this study, the relationships between interannual variations of surface urban heat islands (SUHIs) and climate variability were studied in 31 cities of China for the period 2001-2016. For cold and dry Northern China, it was found that the interannual variations of SUHI intensity (SUHII, land surface temperature (LST) in urban minus rural) in urban cores was significantly (p<0.05) and negatively correlated with rural LST in 9 (in summer days (SDs)) and 8 (in winter days (WDs)) of the 15 northern cities, respectively...
February 14, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29454201/nitrous-oxide-emissions-from-near-zero-water-exchange-brackish-recirculating-aquaculture-systems
#4
Uri Yogev, Adiel Atari, Amit Gross
The development of intensive recirculating aquaculture systems (RAS) with low water exchange has accelerated in recent years as a result of environmental, economic and other concerns. In these systems, fish are commonly grown at high density, 50 to 150kg/m 3 , using high-protein (30%-60%) feeds. Typically, the RAS consists of a solid treatment and a nitrification unit; in more advanced RAS, there is an additional denitrification step. Nitrous oxide (N 2 O), a byproduct during nitrification and denitrification processes, is a potent greenhouse gas that destroys the ozone layer...
February 14, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29454196/sexually-transmitted-infections-and-immune-activation-among-hiv-infected-but-virally-suppressed-youth-on-antiretroviral-therapy
#5
Tanya L Kowalczyk Mullins, Su X Li, James Bethel, Maureen M Goodenow, Stephanie Hudey, John W Sleasman
BACKGROUND: Human immunodeficiency virus (HIV) infection is associated with chronic immune activation, and concurrent sexually transmitted infections (STIs) may increase immune activation. OBJECTIVES: Because HIV-infected youth are at high risk of STIs and little is known about the impact of STIs on immune activation in HIV-infected youth, we conducted an exploratory study examining the association between STIs and systemic inflammation and immune activation among HIV-infected adolescents...
February 7, 2018: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/29454176/efficacy-of-intensive-voice-feminisation-therapy-in-a-transgender-young-offender
#6
Sterling Quinn, Nathaniel Swain
Research suggests that transgender young offenders are a uniquely vulnerable caseload that may benefit from speech pathology intervention to help bring their voice into alignment with their gender identity. However, no previous studies have investigated treatment efficacy in this population. This study investigated the impact of intensive voice feminisation therapy targeting fundamental frequency and oral resonance in a 17 year old transgender individual within a youth justice institution. Acoustic analysis, listener and self-ratings of vocal femininity, self-ratings of vocal satisfaction, a post-treatment structured interview, and pre- and post- treatment completion of the Transsexual Voice Questionnaire (TVQ MtF ) were utilised to determine treatment impact...
February 8, 2018: Journal of Communication Disorders
https://www.readbyqxmd.com/read/29454173/photo-assisted-electrochemical-abatement-of-trifluralin-using-a-cathode-containing-a-c-60-carbon-nanotubes-composite
#7
Aliyeh Hasanzadeh, Alireza Khataee, Mahmoud Zarei, Sang Woo Joo
This work reports the potential application of modified gas-diffusion electrode (GDE) with C 60 -CNT composite, as a stable and efficient cathode material for degradation of trifluralin (TRL) pesticide by photo-assisted electrochemical (PE) process. C 60 -CNT composite was prepared and characterized. Subsequently, a novel C 60 -CNT composite modified GDE cathode was developed and the electrochemical and physical characteristics of the modified GDEs were studied. C 60 -CNT composite/GDE showed great efficiencies for electro-generating H 2 O 2 , owing to huge surface area and high conductivity...
February 9, 2018: Chemosphere
https://www.readbyqxmd.com/read/29454150/assessment-of-cervical-stiffness-in-axial-rotation-among-chronic-neck-pain-patients-a-trial-in-the-framework-of-a-non-manipulative-osteopathic-management
#8
P-M Dugailly, A Coucke, W Salem, V Feipel
BACKGROUND: Cervical stiffness is a clinical feature commonly appraised during the functional examination of cervical spine. Measurements of cervical stiffness in axial rotation have not been reported for patients with neck pain. The purpose of this study was to investigate cervical spine stiffness in axial rotation among neck pain patients and asymptomatic subjects, and to analyze the impact of osteopathic management. METHODS: Thirty-five individuals (17 patients) were enrolled...
February 12, 2018: Clinical Biomechanics
https://www.readbyqxmd.com/read/29454131/self-reported-headaches-in-patients-with-unruptured-intracranial-aneurysms-treated-with-the-pipeline-embolization-device
#9
Anna M Schneider, Justin M Moore, Nimer Adeeb, Raghav Gupta, Christoph J Griessenauer, Peter A Winkler, Sarah Sieber, Abdulrahman Y Alturki, Christopher S Ogilvy, Ajith J Thomas
INTRODUCTION: The objective of this study was to analyze patients' perceptions of their headaches both prior to and following Pipeline flow diversion treatment of their unruptured intracranial aneurysms, with the goal of identifying prognostic factors associated with headache patterns to improve predictions of overall outcomes. MATERIALS AND METHODS: We retrospectively identified 133 patients treated with the PED between January 1 st 2014 and December 31 st 2016 at an academic institution in the United States...
February 14, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29454123/cardiac-metastasis-from-clivus-chordoma-a-case-report
#10
Jun Won Kim, Chang-Ki Hong, Yoon Jin Cha, Se Hoon Kim, Chang-Ok Suh, Kyu-Sung Lee
BACKGROUND: Chordomas are rare tumors showing locally aggressive nature and high rates of local recurrences. Distant metastases are infrequently reported and cardiac metastases are extremely rare. CASE DESCRIPTION: A 32-year-old woman had been diagnosed with a large chordoma involving the clivus. She received a total removal of the tumor and adjuvant intensity-modulated radiotherapy. Four and a half years after the surgery, she presented with multifocal lesions in the ventricles and the right atrium, although an open thoracotomy revealed chronic inflammation...
February 14, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29454098/quantitative-imaging-features-and-postoperative-hepatic-insufficiency-a-multi-institutional-expanded-cohort
#11
Linda M Pak, Jayasree Chakraborty, Mithat Gonen, William C Chapman, Richard Kg Do, Bas Groot Koerkamp, Kees Verhoef, Ser Yee Lee, Marco Massani, Eric P van der Stok, Amber L Simpson
BACKGROUND: Post-hepatectomy liver insufficiency (PHLI) is a significant cause of morbidity and mortality after liver resection. Quantitative imaging analysis using CT scans measures variations in pixel intensity related to perfusion. A preliminary study demonstrated a correlation between quantitative imaging features of the future liver remnant (FLR) parenchyma from preoperative CT scans and PHLI. The objective of the present study was to explore the potential application of quantitative imaging analysis in PHLI in an expanded, multi-institutional cohort...
February 14, 2018: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/29454056/biophysical-and-immunological-characterization-of-2-drib-modified-hsa-and-its-implications-in-diabetes-mellitus
#12
Ishrat Jahan Saifi, Km Neelofar, M R Ajmal, Sheelu Shafiq Siddiqi
Glycoxidation of protein may lead to develop diabetes. In the present study, different concentrations of 2-deoxy d-ribose (2-dRib) were used to modify human serum albumin (HSA). Nitro Blue Tetrazolium (NBT) assay results showed that yield of the fructosamine content was directly proportional to the concentration of 2-dRib. UV and fluorescence spectroscopy results showed an increment in hyperchromicity and decrease in fluorescence intensity of 2-dRib modified HSA as compared to native HSA. Further secondary structural changes were confirmed by UV-circular dichroism (UV-CD) and Fourier transform infrared spectroscopy (FT-IR)...
February 14, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29454038/dendritic-cells-as-cancer-therapeutics
#13
REVIEW
Christian E Bryant, Sarah Sutherland, Benjamin Kong, Michael S Papadimitrious, Derek N J Hart
The ability of immune therapies to control cancer has recently generated intense interest. This therapeutic outcome is reliant on T cell recognition of tumour cells. The natural function of dendritic cells (DC) is to generate adaptive responses, by presenting antigen to T cells, hence they are a logical target to generate specific anti-tumour immunity. Our understanding of the biology of DC is expanding, and they are now known to be a family of related subsets with variable features and function. Most clinical experience to date with DC vaccination has been using monocyte-derived DC vaccines...
February 14, 2018: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/29453980/virtual-reality-for-upper-limb-rehabilitation-in-sub-acute-and-chronic-stroke-a-randomized-controlled-trial
#14
Pawel Kiper, Andrzej Szczudlik, Michela Agostini, Jozef Opara, Roman Nowobilski, Laura Ventura, Paolo Tonin, Andrea Turolla
OBJECTIVE: To evaluate the effectiveness of reinforced feedback in virtual environment (RFVE) treatment combined with conventional rehabilitation (CR) in comparison with CR alone, and to study whether changes are related to stroke aetiology (i.e. ischemic or hemorrhagic). DESIGN: Randomized controlled trial. SETTING: Inpatients in a hospital facility for intensive rehabilitation. PARTICIPANTS: 136 patients within one year from onset of a single stroke...
February 14, 2018: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29453894/organisation-of-lymphocytic-infiltrates-inanca-associated-glomerulonephritis
#15
Silke R Brix, Mercedes Noriega, Elisabeth M Herden, Birgit Goldmann, Ulrike Langbehn, Martin Busch, Wolfram J Jabs, Oliver M Steinmetz, Ulf Panzer, Tobias B Huber, Rolf A K Stahl, Thorsten Wiech
AIMS: Renal involvement in anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis contributes to significant morbidity and mortality in patients. In chronic inflammation, B cells are recruited to the inflamed tissue and organised lymphoid structures have been described in several autoimmune diseases. Aim of this study was to correlate the lymphoid organisation in renal biopsies with renal outcome in ANCA-associated glomerulonephritis (GN). METHODS AND RESULTS: We investigated 112 renal biopsies from patients with newly diagnosed ANCA-associated necrotizing GN...
February 17, 2018: Histopathology
https://www.readbyqxmd.com/read/29453893/cbct-guided-evolutive-library-for-cervical-adaptive-imrt
#16
Bastien Rigaud, Antoine Simon, Maxime Gobeli, Caroline Lafond, Julie Leseur, Anais Barateau, Nicolas Jaksic, Joël Castelli, Danièle Williaume, Pascal Haigron, Renaud De Crevoisier
PURPOSE: In the context of adaptive radiation therapy (ART) for locally advanced cervical carcinoma (LACC), this study proposed an original cone-beam computed tomography (CBCT)-guided "Evolutive library" and evaluated it against four other known radiotherapy (RT) strategies. MATERIAL AND METHODS: For 20 patients who underwent intensity-modulated radiation therapy (IMRT) for LACC, three planning CTs (with empty [EB], intermediate [IB], and full [FB] bladder volumes), a CT scan at 20 Gy and bi-weekly CBCTs for 5 weeks were performed...
February 17, 2018: Medical Physics
https://www.readbyqxmd.com/read/29453799/impact-of-post-diagnostic-statin-use-on-ovarian-cancer-mortality-a-systematic-review-and-meta-analysis-of-observational-studies
#17
Xia Li, Jing Zhou
AIM: To comprehensively evaluate the association between post-diagnostic statin use and mortality of ovarian cancer (OC) patients. METHODS: Using a comprehensive strategy, multiple databases (Medline, Embase, and Web of Science) were systematically searched to identify observational studies that examined the correlation between statin use and OC mortality up to December 31, 2017. The studies were independently reviewed and selected based on predetermined selection criteria...
February 17, 2018: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29453741/fuel-for-the-work-required-a-theoretical-framework-for-carbohydrate-periodization-and-the-glycogen-threshold-hypothesis
#18
Samuel G Impey, Mark A Hearris, Kelly M Hammond, Jonathan D Bartlett, Julien Louis, Graeme L Close, James P Morton
Deliberately training with reduced carbohydrate (CHO) availability to enhance endurance-training-induced metabolic adaptations of skeletal muscle (i.e. the 'train low, compete high' paradigm) is a hot topic within sport nutrition. Train-low studies involve periodically training (e.g., 30-50% of training sessions) with reduced CHO availability, where train-low models include twice per day training, fasted training, post-exercise CHO restriction and 'sleep low, train low'. When compared with high CHO availability, data suggest that augmented cell signalling (73% of 11 studies), gene expression (75% of 12 studies) and training-induced increases in oxidative enzyme activity/protein content (78% of 9 studies) associated with 'train low' are especially apparent when training sessions are commenced within a specific range of muscle glycogen concentrations...
February 16, 2018: Sports Medicine
https://www.readbyqxmd.com/read/29453721/fenton-treatment-of-bio-treated-fermentation-based-pharmaceutical-wastewater-removal-and-conversion-of-organic-pollutants-as-well-as-estimation-of-operational-costs
#19
Yunqin Cheng, Yunlu Chen, Juncheng Lu, Jianxin Nie, Yan Liu
The Fenton process is used as a tertiary treatment to remove organic pollutants from the effluent of bio-treated pharmaceutical wastewater (EBPW). The optimal and most appropriate Fenton conditions were determined by an orthogonal array test and single-factor experiments. The removal of chemical oxygen demand (COD) was influenced by the following factors in a descending order: H 2 O 2 /Fe(II) molar ratio > H 2 O 2 dosage > reaction time. Under the most appropriate Fenton conditions (H 2 O 2 /Fe(II) molar ratio of 1:1, H 2 O 2 dosage of 120 mg L -1 and reaction time of 10 min), the COD and dissolved organic carbon (DOC) were removed with efficiencies of 62 and 53%, respectively, which met the national discharge standard (GB 21903-2008) for the Lake Tai Basin, China...
February 16, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29453688/rapid-optimization-of-spore-production-from-bacillus-amyloliquefaciens-in-submerged-cultures-based-on-dipicolinic-acid-fluorimetry-assay
#20
Hang Ren, Ya-Ting Su, Xiao-Hua Guo
Some optimization techniques have been widely applied for spore fermentation based on the plate counting. This study optimized the culture medium for the spore production of Bacillus amyloliquefaciens BS-20 and investigated the feasibility of using a dipicolonic acid (DPA) fluorimetry assay as a simpler alternative to plate counting for evaluating spore yields. Through the single-factor experiment, the metal ions and agro-industrial raw materials that significantly enhanced spore production were determined...
February 16, 2018: AMB Express
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