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https://www.readbyqxmd.com/read/28340433/feasibility-of-carbon-dioxide-sequestration-by-spongiochloris-sp-microalgae-during-petroleum-wastewater-treatment-in-airlift-bioreactor
#1
Abdeldjalil Abid, Faten Saidane, Moktar Hamdi
The aim of this work was to study the ability of using Hydrocabonoclastic native microbial and Spongiochloris sp microalgae in airlift bioreactors couples in order to restore hydrocarbons wastewater and develop the capacity of natural systems to reduce greenhouse effect through maximal control of CO2 gas emission in atmosphere. The kinetic parameters of CO2 gas fixation level and conversion it into biological material by microalgae as the biodegradation process effect in hydrocarbon have been evaluated. The result present that maximum specific growth rate μmax of Spongiochloris sp was (0...
March 10, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28339650/convenient-method-for-better-preservation-of-fine-structures-of-cultured-macrophages-and-engulfed-yeast-cells-by-freeze-substitution-fixation
#2
Masashi Yamaguchi, Azusa Takahashi-Nakaguchi, Yuko Aida, Michiyo Sato-Okamoto, Hiroji Chibana
Rapid freeze-freeze substitution after glutaraldehyde fixation (CF-FS method) obtained the natural and fine structures of macrophages and engulfed yeast cells. Culturing macrophages on single hole molybdenum grids placed in culture dishes made possible the rapid freezing of cells by the 'open sandwich method'. This method may be convenient when rapid-freezing cannot be performed immediately, or when a rapid-freezing device is not available in the lab.
February 18, 2017: Microscopy
https://www.readbyqxmd.com/read/28339286/advantages-of-arthroscopic-rotator-cuff-repair-with-a-transosseous-suture-technique-a-prospective-randomized-controlled-trial
#3
Pietro Randelli, Carlo Alberto Stoppani, Carlo Zaolino, Alessandra Menon, Filippo Randelli, Paolo Cabitza
BACKGROUND: Rotator cuff tear is a common finding in patients with painful, poorly functioning shoulders. The surgical management of this disorder has improved greatly and can now be fully arthroscopic. PURPOSE: To evaluate clinical and radiological results of arthroscopic rotator cuff repair using 2 different techniques: single-row anchor fixation versus transosseous hardware-free suture repair. STUDY DESIGN: Randomized controlled trial; Level of evidence, 1...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28335091/assessment-of-genetic-diversity-and-phylogenetic-relationships-of-korean-native-chicken-breeds-using-microsatellite-markers
#4
Joo Hee Seo, Jun-Heon Lee, Hong Sik Kong
In this study, the genetic diversity and phylogenetic relationships of 445 Korean native chickens from five different breeds(Korean Native Chicken (NC), Leghorn (LH), Cornish (CS), Rhode Island Red (RIR), and Hanhyup(HH) commercial line) were studied by performing genotyping using 20 microsatellite (MS) markers. Among the 20 MS markers selected for the genotyping, the number of alleles ranged from 5 (ADL0268) to 20 (MCW0127). The observed heterozygosity (Hobs) ranged from 0.349 (GCT0016) to 0.683 (MCW0145)...
March 21, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28334247/genetic-population-structure-of-dastarcus-helophoroides-coleoptera-bothrideridae-from-different-long-horned-beetle-hosts-based-on-complete-sequences-of-mitochondrial-coi
#5
Zhengqing Zhang, Yong Chang, Menglou Li
Dastarcus helophoroides (Fairmaire) (Coleoptera: Bothrideridae) is an important natural enemy of long-horned beetles in China, Japan, and Korea. In this study, the genetic sequence of cytochrome oxidase subunit Ι was used to investigate the genetics and relationships within and among D. helophoroides populations collected from five different geographic locations. We used principal component analysis, heatmap, and Venn diagram results to determine the relationship between haplotypes and populations. In total, 26 haplotypes with 51 nucleotide polymorphic sites were defined, and low genetic diversity was found among the different populations...
March 3, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334181/uncovering-the-spatial-profile-of-contour-integration-from-fixational-saccades-evidence-for-widespread-processing-in-v1
#6
Ariel Gilad, Roy Oz, Hamutal Slovin
During contour integration, neuronal populations in the primary visual cortex (V1) enhance their responses to the contour while suppressing their responses to the noisy background. However, the spatial extent and profile of these responses are not fully understood. To investigate this question, 2 monkeys were trained on a contour detection task while we measured population responses in V1 using voltage-sensitive dyes. During stimulus presentation the animals made few fixational saccades, and we used their changing gaze position to image and analyze neuronal responses from large part of the stimulus, encoding multiple contour/background elements...
October 5, 2016: Cerebral Cortex
https://www.readbyqxmd.com/read/28333972/evaluation-of-high-resolution-in-vivo-mri-for-longitudinal-analysis-of-endochondral-fracture-healing-in-mice
#7
Melanie Haffner-Luntzer, Fabian Müller-Graf, Romano Matthys, Yvonne Hägele, Verena Fischer, René Jonas, Alireza Abaei, Florian Gebhard, Volker Rasche, Anita Ignatius
Mice are extensively used for experimental bone-healing studies. However, there are few established nondestructive in vivo techniques for longitudinal fracture-healing analysis in mice, including in vivo micro-computed tomography (μCT) and radiography. Importantly, none of the established methods can discriminate between non-mineralized fibrous tissue and cartilage in the soft fracture callus. Therefore, the objective was to establish high-resolution in vivo magnetic resonance imaging (MRI) for the longitudinal assessment of soft callus formation during bone healing in mice...
2017: PloS One
https://www.readbyqxmd.com/read/28333947/surgical-interventions-to-treat-humerus-shaft-fractures-a-network-meta-analysis-of-randomized-controlled-trials
#8
Jia-Guo Zhao, Jia Wang, Xiao-Hui Meng, Xian-Tie Zeng, Shi-Lian Kan
BACKGROUND: There are three main surgical techniques to treat humeral shaft fractures: open reduction and plate fixation (ORPF), intramedullary nail (IMN) fixation, and minimally invasive percutaneous osteosynthesis (MIPO). We performed a network meta-analysis to compare three surgical procedures, including ORPF, IMN fixation, and MIPO, to provide the optimum treatment for humerus shaft fractures. METHODS: MEDLINE, EMBASE, Cochrane Bone, Joint and Muscle Trauma Group Specialised Register, and Cochrane library were researched for reports published up to May 2016...
2017: PloS One
https://www.readbyqxmd.com/read/28333894/m-s-smart-system-contrast-sensitivity-measurements-compared-with-standard-visual-function-measurements-in-primary-open-angle-glaucoma-patients
#9
Jessica L Liu, J Jason McAnany, Jacob T Wilensky, Ahmad A Aref, Thasarat S Vajaranant
PURPOSE: To evaluate the nature and extent of letter contrast sensitivity (CS) deficits in glaucoma patients using a commercially available computer-based system (M&S Smart System II) and to compare the letter CS measurements to standard clinical measures of visual function. METHODS: Ninety-four subjects with primary open-angle glaucoma participated. Each subject underwent visual acuity, letter CS, and standard automated perimetry testing (Humphrey SITA 24-2). All subjects had a best-corrected visual acuity (BCVA) of 0...
March 22, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28333559/technique-tip
#10
Gregory R Waryasz, Stephen Marcaccio, Joseph A Gil
Lisfranc injury fixation or arthrodesis typically involves the reduction and fixation of several tarsometatarsal joints with either screws or a plate and screw constructs. A successful fixation or arthrodesis of the Lisfranc joint requires proper screw placement from the medial cuneiform to the base of the second metatarsal. This is typically done free-hand; however, we describe use of an anterior cruciate ligament guide to help maintain reduction and assist with drill trajectory for more accurate screw or suture button construct placement...
April 2017: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/28333501/effects-of-word-predictability-and-preview-lexicality-on-eye-movements-during-reading-a-comparison-between-young-and-older-adults
#11
Wonil Choi, Matthew W Lowder, Fernanda Ferreira, Tamara Y Swaab, John M Henderson
Previous eye-tracking research has characterized older adults' reading patterns as "risky," arguing that compared to young adults, older adults skip more words, have longer saccades, and are more likely to regress to previous portions of the text. In the present eye-tracking study, we reexamined the claim that older adults adopt a risky reading strategy, utilizing the boundary paradigm to manipulate parafoveal preview and contextual predictability of a target word. Results showed that older adults had longer fixation durations compared to young adults; however, there were no age differences in skipping rates, saccade length, or proportion of regressions...
March 23, 2017: Psychology and Aging
https://www.readbyqxmd.com/read/28333444/host-symbiont-interaction-model-explains-non-monotonic-response-of-soybean-growth-and-seed-production-to-nano-ceo2-exposure
#12
Tin Klanjscek, Erik B Muller, Patricia A Holden, Roger M Nisbet
Recent nanotoxicity studies have demonstrated non-monotonic dose-response mechanisms for planted soybean that have a symbiotic relationship with bacteroids in their root nodules: reduction of growth and seed production was greater for low, as compared to high, exposures. To investigate mechanistic underpinnings of the observed patterns, we formulated an energy budget model coupled to a toxicokinetic module describing bioaccumulation, and two toxicodynamic modules describing respectively toxic effects on host plant and symbionts...
March 23, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28333395/small-molecules-belowground-the-role-of-specialized-metabolites-in-the-rhizosphere
#13
Hassan Massalha, Elisa Korenblum, Dorothea Tholl, Asaph Aharoni
Soil communities are diverse taxonomically and functionally. This ecosystem experiences highly complex networks of interactions, but may also present functionally independent entities. Plant roots, a metabolically active hotspot in the soil, take an essential part in belowground interactions. While plants are known to release an extremely high portion of the fixated carbon to the soil, less is known about the composition and role of C-containing compounds in the rhizosphere, in particular those involved in chemical communication...
March 23, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28333211/glutathione-affects-the-transport-activity-of-rhizobium-leguminosarum-3841-and-is-essential-for-efficient-nodulation
#14
Guojun Cheng, Ramakrishnan Karunakaran, Alison K East, Olaya Munoz-Azcarate, Philip S Poole
As glutathione (GSH) plays an essential role in growth and symbiotic capacity of rhizobia, a glutathione synthetase (gshB) mutant of Rhizobium leguminosarum biovar viciae 3841 (Rlv3841) was characterised. It fails to efficiently utilise various compounds as a sole carbon source, including glucose, succinate, glutamine and histidine, and shows 60-69% reduction in uptake rates of glucose, succinate and the non-metabolisable substrate α-amino isobutyric acid (AIB). The defect in glucose uptake can be overcome by addition of exogenous GSH, indicating GSH, but not its bacterial synthesis, is required for efficient transport...
February 23, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/28333168/metallic-reductant-free-synthesis-of-%C3%AE-substituted-propionic-acid-derivatives-through-hydrocarboxylation-of-alkenes-with-a-formate-salt
#15
Jun Takaya, Ko Miyama, Chuan Zhu, Nobuharu Iwasawa
A PGeP-pincer palladium-catalyzed hydrocarboxylation of styrenes to obtain pharmaceutically important α-arylpropionic acid derivatives was achieved using a formate salt as both a reductant and a CO2 source. The reaction was also applicable to vinylsulfone and acrylates. Isotope labeling experiments demonstrated that a CO2-recycling mechanism is operative through generation and reaction of a benzylpalladium complex as a carbon nucleophile. This protocol has realized a mild and atom economical CO2-fixation reaction without the necessity of using strong metallic reductants...
March 23, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28332404/conceptual-design-and-implantation-of-an-external-fixator-with-improved-mobility-for-knee-rehabilitation
#16
Gianluca Gatti
A hinged external fixator is used to allow early knee rehabilitation in case of injury or trauma, as an alternative approach to immobilization. It is mainly adopted for the treatment of dislocations, which involve tearing of the ligaments, and it basically consists of two links connected to each other by a revolute joint. Each link is fixed to the femur and tibia via pin fixation, and the revolute joint is approximately aligned to the knee flexion-extension (FE) axis. The advantage in its implantation is to protect ligament reconstruction, while allowing for an aggressive rehabilitation...
March 23, 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/28332044/no-difference-between-cemented-and-cementless-total-knee-arthroplasty-in-young-patients-a-review-of-the-evidence
#17
REVIEW
Edoardo Franceschetti, Guglielmo Torre, Alessio Palumbo, Rocco Papalia, Jón Karlsson, Olufemi R Ayeni, Kristian Samuelsson, Francesco Franceschi
PURPOSE: The present piece of work provides improved knowledge about the evidence related to TKA in patients 60 years of age or younger, with special focus on fixation methods. Main concern of the review is to analyse the difference of survival rate and complications of cemented and cementless implants. METHODS: An electronic search was carried out between October and December 2015, through CINAHL, PubMed and the Cochrane Central Registry of Controlled Trials web databases...
March 22, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28331965/critiquing-operative-fracture-fixation-the-development-of-an-assessment-tool
#18
D H Hawkes, W J Harrison
PURPOSE: Assessments are fundamentally important for training surgeons. Currently, there are no formal means of assessing operative fracture fixation. An assessment tool has been developed which can be used by trainers to critique the quality of a trainee's operative fracture fixation. The tool is based on the AO principles of fracture management. The reliability and validity of the assessment were tested in a prospective study. METHODS: The assessment tool comprises of 4 domains focusing on the different factors pertinent to fracture fixation (reduction, stability, implant and overall impression)...
March 23, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28331927/bilateral-shoulder-arthrodesis-in-a-pekinese-using-three-dimensional-printed-patient-specific-osteotomy-and-reduction-guides
#19
Bill Oxley
OBJECTIVE: To report the use of computer-aided design software for virtual surgical planning and design of three-dimensional printed patient-specific osteotomy and reduction guides for facilitation of bilateral shoulder arthrodesis in a dog. METHODS: A three-year-old male entire Pekinese was presented unable to walk due to bilateral severe medial shoulder instability. Computed tomographic data was processed to yield three-dimensional mesh representations of the humeri and scapulae which could be manipulated in computer-aided design software...
March 23, 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/28331602/positive-selection-of-il-33-in-adaptive-immunity-of-domestic-chinese-goats
#20
Akhtar Rasool Asif, Muhammad Awais, Sumayyah Qadri, Hafiz Ishfaq Ahmad, Xiaoyong Du
The identification of the candidate genes that play key role in phenotypic variation in livestock populations can provide new information about evolution and positive selection. IL-33 (71954) (Interleukin) gene is associated with the increased nematode resistance in small ruminants; however, the role of IL-33 for the genetic control of different diseases in Chinese goat breeds is poorly described in scientific literature. Therefore, the current investigation was performed for the better understanding of the molecular evolution and the positive selection of single-nucleotide polymorphism in IL-33 gene...
March 2017: Ecology and Evolution
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