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https://www.readbyqxmd.com/read/28339947/nitrogen-corrected-apparent-metabolisable-energy-values-of-barley-varies-by-treatment-and-species
#1
Majid Alahyari-Shahrasb, Hoseein Moravej, Ruhollah Kianfar, Woo Kyun Kim
The aim of this study was to evaluate the effects of two species of poultry (cockerel and Japanese quail), two levels of enzyme (0 and 0.5 g/kg), and 6 processing methods (control (C), gamma irradiation 25 (GI25), and 50 kGy (GI50), autoclaving (AU), fermentation without lactobacillus (F), and fermentation with lactobacillus (FL)) on the nitrogen-corrected apparent metabolisable energy (AMEn) of barley. In this experiment, each processing method was tested at two levels of enzyme (0 and 0.5 g/kg) in six replications with two cockerels or four quails per replication...
February 22, 2017: Poultry Science
https://www.readbyqxmd.com/read/28333393/laser-generated-shockwaves-enhance-antibacterial-activity-against-biofilms-in-vitro
#2
William Yao, Edward C Kuan, Nathan C Francis, Maie A St John, Warren S Grundfest, Zachary D Taylor
BACKGROUND AND OBJECTIVES: Bacterial biofilm formation within chronic wound beds, which provides an effective barrier against antibiotics, is a known cause of recalcitrant infections and a significant healthcare burden, often requiring repeated surgical debridements. Laser-generated shockwaves (LGS) is a novel, minimally invasive, and nonthermal modality for biofilm mechanical debridement which utilizes compressive stress waves, generated by photonic absorption in thin titanium films to mechanically disrupt the biofilm...
March 23, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28332191/combined-application-of-er-yag-and-nd-yag-lasers-in-treatment-of-chronic-periodontitis-a-split-mouth-single-blind-randomized-controlled-trial
#3
M Sağlam, S Köseoğlu, I Taşdemir, H Erbak Yılmaz, L Savran, R Sütçü
BACKGROUND: The aim of the present study was to compare the effectiveness of combined Er:YAG and Nd:YAG laser therapy to that of scaling and root planing with hand instruments in non-surgical treatment of chronic periodontitis. MATERIAL AND METHODS: Twenty-five systemically healthy patients with chronic periodontitis were selected for this study. The quadrants were randomly allocated in a split-mouth design to either combined Er:YAG (160 mJ/pulse, 10 Hz) and Nd:YAG laser (100 mJ/pulse, 20 Hz) therapy (test group) or scaling and root planing alone (control group)...
March 23, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28331551/environmental-costs-and-benefits-of-growing-miscanthus-for-bioenergy-in-the-uk
#4
REVIEW
Jon P McCalmont, Astley Hastings, Niall P McNamara, Goetz M Richter, Paul Robson, Iain S Donnison, John Clifton-Brown
Planting the perennial biomass crop Miscanthus in the UK could offset 2-13 Mt oil eq. yr(-1), contributing up to 10% of current energy use. Policymakers need assurance that upscaling Miscanthus production can be performed sustainably without negatively impacting essential food production or the wider environment. This study reviews a large body of Miscanthus relevant literature into concise summary statements. Perennial Miscanthus has energy output/input ratios 10 times higher (47.3 ± 2.2) than annual crops used for energy (4...
March 2017: Global Change Biology. Bioenergy
https://www.readbyqxmd.com/read/28331054/ambient-uvb-dose-and-sun-enjoyment-are-important-predictors-of-vitamin-d-status-in-an-older-population
#5
Fiona O'Sullivan, Eamon Laird, Dervla Kelly, Jos van Geffen, Michiel van Weele, Helene McNulty, Leane Hoey, Martin Healy, Kevin McCarroll, Conal Cunningham, Miriam Casey, Mary Ward, J J Strain, Anne M Molloy, Lina Zgaga
Background: UVB-induced skin synthesis is considered the key source of vitamin D, yet exposure to UVB is poorly accounted for in epidemiological studies.Objectives: The aim of this study was to examine the association of serum 25-hydroxyvitamin D [25(OH)D] concentration with accurately measured ambient UVB dose, sun enjoyment, supplements, and other factors.Methods: An all-Irish cohort of community-dwelling participants aged >60 y [median age: 73; 67% female; median 25(OH)D: 54.5 nmol/L] was used. Participants from this large, cross-sectional study completed a questionnaire to provide information on demographic factors and lifestyle (including supplement use and sun enjoyment)...
March 22, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28330109/biomass-production-and-identification-of-suitable-harvesting-technique-for-chlorella-sp-mj-11-11-and-synechocystis-pcc-6803
#6
Amrit Lal, Debabrata Das
Microalgae that can grow fast and convert solar energy into chemical energy efficiently are being considered as a promising feedstock of renewable biofuel. Mass production of microalgal oil faces a number of technical barriers that make the current production of biodiesel economically unfeasible. Small size (≈1-20 μm) and negatively charged surface of the microalgal cells pose difficulties in the process of harvesting. This leads to significant increase in the overall cost of biomass production. The present study explored different methods and conditions for harvesting of Chlorella sp...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28319084/structural-and-mechanistic-insights-into-an-archaeal-dna-guided-argonaute-protein
#7
Sarah Willkomm, Christine A Oellig, Adrian Zander, Tobias Restle, Ronan Keegan, Dina Grohmann, Sabine Schneider
Argonaute (Ago) proteins in eukaryotes are known as key players in post-transcriptional gene silencing(1), while recent studies on prokaryotic Agos hint at their role in the protection against invading DNA(2,3). Here, we present crystal structures of the apo enzyme and a binary Ago-guide complex of the archaeal Methanocaldococcus jannaschii (Mj) Ago. Binding of a guide DNA leads to large structural rearrangements. This includes the structural transformation of a hinge region containing a switch helix, which has been shown for human Ago2 to be critical for the dynamic target search process(4-6)...
March 20, 2017: Nature Microbiology
https://www.readbyqxmd.com/read/28319039/tunable-amplified-spontaneous-emission-in-graphene-quantum-dots-doped-cholesteric-liquid-crystals
#8
Mingxuan Cao, Siwei Yang, Yating Zhang, Xiaoxian Song, Yongli Che, Haiting Zhang, Yu Yu, Gu Ding, Guizhong Zhang, Jianquan Yao
Graphene quantum dots (GQDs) have received great attention owing to their unique structure and novel phenomena of optical absorption/emission. In this letter, we observed the tunable amplified spontaneous emission (ASE) in GQDs doped cholesteric liquid crystals (CLC) for the first time. The GQDs are dispersed in CLC homogeneously with the weight ratio of 0.5 wt%. Under optical excitation, a typical ASE is triggered in the system above a 1.25 mJ/cm2 threshold. In addition, the emission peak at the long wavelength edge of the photonic bandgap shifts from 662 nm to 669 nm with the change of working temperature...
March 20, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28315232/land-use-change-in-indian-tropical-agro-ecosystems-eco-energy-estimation-for-socio-ecological-sustainability
#9
Sunil Nautiyal, Harald Kaechele, M S Umesh Babu, Pavan Tikhile, Sangeeta Baksi
This study was carried out to understand the ecological and economic sustainability of floriculture and other main crops in Indian agro-ecosystems. The cultivation practices of four major flower crops, namely Jasminum multiflorum, Crossandra infundibuliformis, Chrysanthemum and Tagetes erecta, were studied in detail. The production cost of flowers in terms of energy was calculated to be 99,622-135,996 compared to 27,681-69,133 MJ ha(-1) for the main crops, namely Oryza sativa, Eleusine coracana, Zea mays and Sorghum bicolor...
April 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28304400/evaluation-of-p16-ki-67-dual-stained-cytology-as-triage-test-for-high-risk-human-papillomavirus-positive-women
#10
Renée Mf Ebisch, Judith van der Horst, Meyke Hermsen, L Lucia Rijstenberg, Judith Em Vedder, Johan Bulten, Remko P Bosgraaf, Viola Mj Verhoef, Daniëlle Am Heideman, Peter Jf Snijders, Chris Jlm Meijer, Folkert J van Kemenade, Leon Fag Massuger, Willem Jg Melchers, Ruud Lm Bekkers, Albert G Siebers
The aim of this study was to evaluate the clinical utility of p16/Ki-67 dual staining, for the identification of CIN in high-risk HPV-positive women from a non-responder screening cohort. P16/Ki-67 dual staining, Pap cytology, and HPV16/18 genotyping were performed on physician-taken liquid-based samples from 495 women who tested high-risk HPV positive on self-sampled material (PROHTECT-3B study). Different triage strategies involving p16/Ki-67 dual staining were evaluated for sensitivity, specificity, and predictive value for ≥CIN2 and ≥CIN3, and compared to Pap cytology with a threshold of atypical cells of undetermined significance...
March 17, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28303228/molecular-cloning-and-functional-identification-of-a-cdna-encoding-4-hydroxy-3-methylbut-2-enyl-diphosphate-reductase-from-tripterygium-wilfordii
#11
Qiqing Cheng, Yuru Tong, Zihao Wang, Ping Su, Wei Gao, Luqi Huang
The 4-hydroxy-3-methylbut-2-enyl diphosphate reductase (HDR) is the last step key enzyme of the methylerythritol phosphate (MEP) pathway, synthesizing isopentenyl diphosphate and its allyl isomer dimethylallyl diphosphate, which is important for regulation of isoprenoid biosynthesis. Here the full-length cDNA of HDR, designated TwHDR (GenBank Accession No. KJ933412.1), was isolated from Tripterygium wilfordii for the first time. TwHDR has an open reading frame (ORF) of 1386 bp encoding 461 amino acids. TwHDR exhibits high homology with HDRs of other plants, with an N-terminal conserved domain and three conserved cysteine residues...
March 2017: Acta Pharmaceutica Sinica. B
https://www.readbyqxmd.com/read/28298016/a-proposed-plan-for-personalized-radiosurgery-in-patients-with-trigeminal-neuralgia
#12
Seyed H Mousavi, Ajay Niranjan, Berkcan Akpinar, Edward A Monaco, Jonathan Cohen, Jagdish Bhatnagar, Yue-Fang Chang, Hideyuki Kano, Sakibul Huq, John C Flickinger, L Dade Lunsford
OBJECTIVE During the last 25 years, more than 100,000 patients worldwide with trigeminal neuralgia (TN) have undergone stereotactic radiosurgery (SRS) with a standard dose of radiation. However, the radiobiological effect of radiation is determined by the amount of energy delivered to the tissue (integral dose [ID] = mean dose × target volume) and is directly associated with the nerve volume. Although the trigeminal nerve volume varies among patients with TN, the clinical impact of this variation in delivered energy is unknown...
February 17, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28297750/ros-scavenging-and-anti-wrinkle-effects-of-clitocybin-a-isolated-from-the-mycelium-of-the-mushroom-clitocybe-aurantiaca
#13
Joo-Eun Lee, Ik-Soo Lee, Kwan-Chul Kim, Ick-Dong Yoo, Han-Mo Yang
Clitocybin A, an isoindolinone from Clitocybe aurantiaca, was investigated to assess its anti-wrinkle properties, through reactive oxygen species (ROS) scavenging and elastase inhibitory activities, procollagen synthesis, and matrix metalloproteinase-1 (MMP-1) expression, in human dermal fibroblast (HDF-N) cells. Clitocybin A exhibited no significant cytotoxicity up to 10 ppm in HDF-N cells, with cell viability and cell proliferation activity greater than 94.6% and 91.9%, respectively. Strong and concentration-dependent ROS radical scavenging activities of clitocybin A were observed following irradiation with UVB at 30 mJ/cm²...
March 15, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28295788/creating-hemodynamic-atlases-of-cardiac-4d-flow-mri
#14
Merih Cibis, Mariana Bustamante, Jonatan Eriksson, Carl-Johan Carlhäll, Tino Ebbers
PURPOSE: Hemodynamic atlases can add to the pathophysiological understanding of cardiac diseases. This study proposes a method to create hemodynamic atlases using 4D Flow magnetic resonance imaging (MRI). The method is demonstrated for kinetic energy (KE) and helicity density (Hd ). MATERIALS AND METHODS: Thirteen healthy subjects underwent 4D Flow MRI at 3T. Phase-contrast magnetic resonance cardioangiographies (PC-MRCAs) and an average heart were created and segmented...
March 13, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28295079/improvement-of-the-beam-quality-of-a-high-pulse-energy-mid-infrared-fractional-image-rotation-enhancement-zngep-sub-2-sub-optical-parametric-oscillator
#15
Martin Schellhorn, Gerhard Spindler, Marc Eichhorn
The beam quality of a high-energy mid-infrared ZnGeP<sub>2</sub> (ZGP) optical parametric oscillator has been improved by use of a negative lens inside the nonplanar fractional-image-rotation enhancement (FIRE) resonator compensating for the thermal lensing and gain guiding effects. With an f=-0.9  m CaF<sub>2</sub> lens, the beam quality is 1.5 and ∼2 for the resonant signal beam and the non-resonant idler beam, respectively. Up to 33 mJ of mid-infrared pulse energy in the 3-5 μm wavelength range is obtained with 94 mJ of pump energy on the crystal...
March 15, 2017: Optics Letters
https://www.readbyqxmd.com/read/28294700/food-intake-and-appetite-following-school-based-high-intensity-interval-training-in-9-11-year-old-children
#16
Anna Morris, Robert Cramb, Caroline J Dodd-Reynolds
Using a randomised cross-over design, free-living lunch intake and subjective appetite were examined in 10 children (9.8 ± 0.6 years) following high-intensity interval training (HIIT) versus a control sedentary (SED) period, within a school setting. The 22-min HIIT took place during a regular PE lesson and consisted of two rounds of 4 × 30 s sprints. Foods were offered at a regular school lunch immediately following HIIT and SED and were matched between conditions. All food was covertly weighed before and after the meal...
March 15, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28294696/cerebrospinal-fluid-mtdna-concentration-is-elevated-in-multiple-sclerosis-disease-and-responds-to-treatment
#17
Cyra E Leurs, Petar Podlesniy, Ramon Trullas, Lisanne Balk, Martijn D Steenwijk, Arjan Malekzadeh, Fredrik Piehl, Bernard Mj Uitdehaag, Joep Killestein, Jack van Horssen, C E Teunissen
BACKGROUND: Mitochondrial dysfunction is increasingly recognized as an important feature of multiple sclerosis (MS) pathology and may be relevant for clinical disease progression. However, it is unknown whether mitochondrial DNA (mtDNA) levels in the cerebrospinal fluid (CSF) associate with disease progression and therapeutic response. OBJECTIVES: To evaluate whether CSF concentrations of mtDNA in MS patients can serve as a marker of ongoing neuropathology and may be helpful to differentiate between MS disease subtypes...
March 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28293873/the-association-between-nd-yag-laser-and-desensitizing-dentifrices-for-the-treatment-of-dentin-hypersensitivity
#18
Sandra Ribeiro Cunha, Stephanie Assimakopoulos Garófalo, Taís Scaramucci, Denise Maria Zezell, Ana Cecilia Corrêa Aranha
This study aims to evaluate the association between Nd:YAG laser (with and without a photoabsorber) and two desensitizing dentifrices containing 15% NovaMin or 8% arginine, as potential treatments for dentin hypersensitivity (DH). DH was simulated by EDTA application for 2 min. Specimens were then analyzed with an environmental scanning electron microscope (ESEM) to ensure open dentin tubules (ODT), counted by using ImageJ software. Specimens were randomized into eight groups (n = 10): Laser (L), Laser+Photoabsorber (LP), Arginine (A), Arginine+Laser (AL), Arginine+Laser+Photoabsorber (ALP), NovaMin (N), NovaMin+Laser (NL), and NovaMin+Laser+Photoabsorber (NLP)...
March 14, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28290084/briquettes-production-for-use-as-power-source-for-combustion-using-charcoal-thin-waste-and-sanitary-sewage-sludge
#19
Ricardo Sonsim de Oliveira, Soraya Moreno Palácio, Edson Antonio da Silva, Filipe Quadros Mariani, Thiago Olinek Reinehr
This study evaluated the feasibility of production of briquettes using fine charcoal, sewage sludge, and mixtures thereof for use in energy production. The briquettes of 7-8 cm diameter and 20 cm length were produced in the conical press extruder type, mixing sewage sludge to charcoal fines in different ratios: 0:100, 25:75, 50:50, 75:25, and 100:0, with the addition of a binder (glue flour) in a ratio of 8 mass% prepared for briquetting. After air drying (temperatures between 24 and 30°C) for 48 h, the mechanical, thermal, and morphological characterizations were performed...
March 13, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28286325/research-advances-in-interactions-related-to-toxoplasma-gondii-microneme-proteins
#20
REVIEW
Qing Liu, Fa-Cai Li, Chun-Xue Zhou, Xing-Quan Zhu
Toxoplasma gondii microneme proteins (TgMICs), secreted by micronemes upon contact with host cells, are reported to play important roles in multiple stages of the T. gondii life cycle, including parasite motility, invasion, intracellular survival, and egress from host cells. Meanwhile, during these processes, TgMICs participate in many protein-protein and protein-carbohydrate interactions, such as undergoing proteolytic maturation, binding to aldolase, engaging the host cell receptors and forming the moving junction (MJ), relying on different types of ectodomains, transmembrane (TM) domains and cytoplasmic domains (CDs)...
March 9, 2017: Experimental Parasitology
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