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https://www.readbyqxmd.com/read/29791167/vibration-assisted-and-vibration-hampered-excitonic-quantum-transport
#1
Omer Goldberg, Yigal Meir, Yonatan Dubi
The interplay between exctions and vibrations is considered to be a key factor in determining the exciton transfer properties in light-harvesting exciton transfer complexes. Here we study this interplay theoretically in a model for exciton transport, composed of two chromophores coupled to an exciton source and sink in the presence of vibrations. We consider two cases, that show qualitatively distinct transport features. In the first, the vibrations are global and affect the two chromophores simultaneously...
May 23, 2018: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/29787488/effects-of-scleral-lens-tear-clearance-on-corneal-edema-and-post-lens-tear-dynamics-a-pilot-study
#2
Bo Tan, Yixiu Zhou, Tiffany L Yuen, Kristina Lin, Langis Michaud, Meng C Lin
SIGNIFICANCE: The present study with small-diameter scleral lenses (SLs) revealed that post-lens tear thickness (PoLTT) was significantly associated with post-lens tear mixing, but not with central corneal edema, after short-term SL wear. PURPOSE: The aim of this study was to investigate the influence of SL tear clearance (PoLTT) on central corneal thickness and post-lens tear dynamics during 5-hour lens wear. METHODS: Neophytes with no active ocular disease were fitted bilaterally with SLs (hofocon A; 15...
May 21, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29786625/differences-in-glenohumeral-joint-rotation-and-peak-power-output-between-super-league-and-championship-rugby-league-players
#3
Matthew R Haines
Haines, MR. Differences in glenohumeral joint rotation and peak power output between Super League and Championship Rugby League players. J Strength Cond Res 32(6): 1685-1691, 2018-Rugby league is a high-intensity sport with large impact forces sustained during play, resulting in high prevalence of shoulder injury. Consequently, shoulder strength and player power are important considerations for injury prevention and performance. Additionally, professional teams regularly compete against semiprofessional teams, where differences in physical conditioning could be marked...
June 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29786455/estimation-of-bone-mineral-density-and-breaking-strength-on-laying-hens-based-on-scans-of-computed-tomography-for-body-composition-analysis
#4
T Donkó, A Tischler, Á Csóka, G Kovács, M Emri, Ö Petneházy, A Szabó, V Halas, J Tossenberger, R Garamvölgyi, G Bajzik
1. The objective of this study was to evaluate the prediction potential of a computer tomography (CT) data collection protocol for determining total body composition used for analysis onwards the tibiotarsal bone quality features. 2. The CT image acquisition was performed on 54 healthy TETRA SL aying hens at 90 weeks of age as well as in the 69th week of the egg production period in vivo and their tibiotarsal bones, ex vivo. 3. Breaking strengths and ash content of the tibiotarsal bones were estimated based on the calculated mineral density of skeletal and tibiotarsal bones by means of CT with an estimation accuracy R2 0...
May 22, 2018: British Poultry Science
https://www.readbyqxmd.com/read/29783182/effects-of-overproduced-ethylene-on-the-contents-of-other-phytohormones-and-expression-of-their-key-biosynthetic-genes
#5
Weiqiang Li, Rie Nishiyama, Yasuko Watanabe, Chien Van Ha, Mikiko Kojima, Ping An, Lei Tian, Chunjie Tian, Hitoshi Sakakibara, Lam-Son Phan Tran
Ethylene is involved in regulation of various aspects of plant growth and development. Physiological and genetic analyses have indicated the existence of crosstalk between ethylene and other phytohormones, including auxin, cytokinin (CK), abscisic acid (ABA), gibberellin (GA), salicylic acid (SA), jasmonic acid (JA), brassinosteroid (BR) and strigolactone (SL) in regulation of different developmental processes. However, the effects of ethylene on the biosynthesis and contents of these hormones are not fully understood...
May 10, 2018: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/29781934/absolute-reliability-and-concurrent-validity-of-the-stryd-system-for-the-assessment-of-running-stride-kinematics-at-different-velocities
#6
Felipe García-Pinillos, Luis E Roche-Seruendo, Noel Marcén-Cinca, Luis A Marco-Contreras, Pedro A Latorre-Román
García-Pinillos, F, Roche-Seruendo, LE, Marcen-Cinca, N, Marco-Contreras, LA, and Latorre-Román, PA. Absolute reliability and concurrent validity of the Stryd system for the assessment of running stride kinematics at different velocities. J Strength Cond Res XX(X): 000-000, 2018-This study aimed to determine the absolute reliability and to evaluate the concurrent validity of the Stryd system for measuring spatiotemporal variables during running at different velocities (8-20 km·h) by comparing data with another widely used device (the OptoGait system)...
May 17, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29781755/more-robust-gut-immune-responses-induced-by-combining-intranasal-and-sublingual-routes-for-prime-boost-immunization
#7
Hye Suk Hwang, Sao Puth, Wenzhi Tan, Vivek Verma, Kwangjoon Jeong, Shee Eun Lee, Joon Haeng Rhee
Norovirus causes acute and debilitating gastroenteritis, characterized by vomiting and diarrhea. We recently reported a recombinant GII. 4 P domain particle (Pd) vaccine adjuvanted with a flagellin, Vibrio vulnificus FlaB, effectively promoting both humoral and cell-mediated immune responses. In the previous study, we found that sublingual (SL) immunization induced higher fecal secretory IgA (SIgA) responses while intranasal (IN) route provided higher amplitude of humoral and cellular immune responses in the systemic compartment...
May 21, 2018: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/29781624/helium-ion-microscopy-as-a-high-resolution-probe-for-complex-quantum-heterostructures-in-core-shell-nanowires
#8
Christian Pöpsel, Jonathan Becker, Nari Jeon, Markus Döblinger, Thomas Stettner, Yeanitza Trujillo Gottschalk, Bernhard Loitsch, Sonja Matich, Marcus Altzschner, Alexander W Holleitner, Jonathan Finley, Lincoln J Lauhon, Gregor Koblmueller
Core-shell semiconductor nanowires (NW) with internal quantum heterostructures are among the most complex nanostructured materials to be explored for assessing the ultimate capabilities of diverse ultrahigh-resolution imaging techniques. To probe the structure and composition of these materials in their native environment with minimal damage and sample preparation calls for high-resolution electron or ion microscopy methods, which have not yet been tested on such classes of ultra-small quantum nanostructures...
May 21, 2018: Nano Letters
https://www.readbyqxmd.com/read/29781404/removal-of-iron-ore-slimes-from-a-highly-turbid-water-by-daf
#9
L M Faustino, A S Braga, G D Sacchi, W Whitaker, M A P Reali, L S Leal Filho, L A Daniel
This paper addresses Dissolved Air Flotation (DAF) process variables, such as the flocculation parameters and the recycle water addition, as well as the pretreatment chemical variables (coagulation conditions), to determine the optimal values for the flotation of iron ore slimes found in a highly turbid water sample from the Gualaxo do Norte River, a tributary of the Doce River Basin in Minas Gerais, Brazil. This work was conducted using a flotatest batch laboratory-scale device to evaluate the effectiveness of DAF for cleaning the water polluted by the Samarco tailings dam leakage and determine the ability of DAF to reduce the water turbidity from 358 NTU to values below 100 NTU, aiming to comply with current legislation...
May 21, 2018: Environmental Technology
https://www.readbyqxmd.com/read/29781136/physcomitrella-patens-max2-characterization-suggests-an-ancient-role-for-this-f-box-protein-in-photomorphogenesis-rather-than-strigolactone-signalling
#10
Mauricio Lopez-Obando, Ruan de Villiers, Beate Hoffmann, Linnan Ma, Alexandre de Saint Germain, Jens Kossmann, Yoan Coudert, C Jill Harrison, Catherine Rameau, Paul Hills, Sandrine Bonhomme
Strigolactones (SLs) are key hormonal regulators of flowering plant development and are widely distributed amongst streptophytes. In Arabidopsis, SLs signal via the F-box protein MORE AXILLARY GROWTH2 (MAX2), affecting multiple aspects of development including shoot branching, root architecture and drought tolerance. Previous characterization of a Physcomitrella patens moss mutant with defective SL synthesis supports an ancient role for SLs in land plants, but the origin and evolution of signalling pathway components are unknown...
May 21, 2018: New Phytologist
https://www.readbyqxmd.com/read/29780335/leg-movement-activity-during-sleep-in-adults-with-attention-deficit-hyperactivity-disorder
#11
Corrado Garbazza, Cornelia Sauter, Juliane Paul, Jenny Kollek, Catharine Dujardin, Sandra Hackethal, Hans Dorn, Anita Peter, Marie-Luise Hansen, Mauro Manconi, Raffaele Ferri, Heidi Danker-Hopfe
Objectives: To conduct a first detailed analysis of the pattern of leg movement (LM) activity during sleep in adult subjects with Attention-Deficit/Hyperactivity Disorder (ADHD) compared to healthy controls. Methods: Fifteen ADHD patients and 18 control subjects underwent an in-lab polysomnographic sleep study. The periodic character of LMs was evaluated with established markers of "periodicity," i.e., the periodicity index, intermovement intervals, and time distribution of LM during sleep, in addition to standard parameters such as the periodic leg movement during sleep index (PLMSI) and the periodic leg movement during sleep arousal index (PLMSAI)...
2018: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/29779779/evaluation-of-pyrosequencing-for-extensive-drug-resistance-defining-anti-tuberculosis-drugs-for-use-in-public-healthcare
#12
Remya Nambiar, Daksha Shah, Kanchan Ajbani, Mubin Kazi, Meeta Sadani, Anjali Shetty, Padmaja Keskar, Sanjeev Kamble, Alex van Belkum, Camilla Rodrigues
MGIT 960 drug susceptibility testing (DST) for Mycobacterium tuberculosis was compared for performance and speed with pyrosequencing (PSQ). Pulmonary samples (n = 100), from GeneXpert/MTB/Rifampicin-resistant patients receiving second-line treatment for 1-3 months, were subjected to DST and PSQ for seven drugs (isoniazid, rifampicin, kanamycin, amikacin, capreomycin, moxifloxacin, and ofloxacin). The mean time-to-result was 35 and two days for DST and PSQ, respectively. Average concordancy was 92.7%. Theoretically, PSQ showed substantial incremental value over the commercial Genotype MTBDRplus/sl...
May 2018: Tuberculosis
https://www.readbyqxmd.com/read/29777861/in-vitro-activity-characterization-of-the-tomato-snrk1-complex-proteins
#13
Dongyin Su, Timothy P Devarenne
Plant Sucrose non-Fermenting 1-Related Protein Kinase1 (SnRK1) complexes are members of the Snf1/AMPK/SnRK protein kinase family and play important roles in many aspects of metabolism. In tomato (Solanum lycopersicum, Sl), only one α-subunit of the SnRK1 complex, SlSnRK1.1, has been characterized to date. In this study, the phylogenetic placement and in vitro kinase activity of a second tomato SnRK1 α-subunit, SlSnRK1.2, were characterized. Interestingly, in the phylogenetic analysis of SnRK1 sequences from monocots and dicots SlSnRK1...
May 16, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29776992/cardiomyopathy-mutation-f88l-in-troponin-t-abolishes-length-dependency-of-myofilament-ca-2-sensitivity
#14
Sherif M Reda, Murali Chandra
Recent clinical studies have revealed a new hypertrophic cardiomyopathy-associated mutation (F87L) in the central region of human cardiac troponin T (TnT). However, despite its implication in several incidences of sudden cardiac death in young and old adults, whether F87L is associated with cardiac contractile dysfunction is unknown. Because the central region of TnT is important for modulating the muscle length-mediated recruitment of new force-bearing cross-bridges (XBs), we hypothesize that the F87L mutation causes molecular changes that are linked to the length-dependent activation of cardiac myofilaments...
May 18, 2018: Journal of General Physiology
https://www.readbyqxmd.com/read/29775906/bioaugmentation-with-diaphorobacter-polyhydroxybutyrativorans-to-enhance-nitrate-removal-in-a-poly-3-hydroxybutyrate-co-3-hydroxyvalerate-supported-denitrification-reactor
#15
Shusong Zhang, Xingbin Sun, Xuming Wang, Tianlei Qiu, Min Gao, Yanmei Sun, Shoutao Cheng, Qingjing Zhang
A newly isolated and identified Diaphorobacter polyhydroxybutyrativorans strain (SL-205) was employed to enhance the denitrification performance of a laboratory-scale solid-phase denitrification (SPD) reactor using poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) as a carbon source, and dynamic variations in microbial communities in the reactor were investigated. Results indicated that bioaugmentation with strain SL-205 enabled rapid reactor startup and improved denitrification performance relative to the reactor inoculated with activated sludge...
May 9, 2018: Bioresource Technology
https://www.readbyqxmd.com/read/29775862/identification-and-functional-characterization-of-a-max2-ortholog-from-switchgrass-panicum-virgatum-l
#16
Tingting Cheng, Donghua Wang, Yongfeng Wang, Shumeng Zhang, Chao Zhang, Shudong Liu, Yajun Xi, Fengli Sun
Switchgrass (Panicum virgatum L.) is a sustainable cellulosic energy crop with high biomass yield on marginal soils. Tillering, an important agronomic characteristic related to biomass production in gramineous plants, is regulated by complex interacting factors, such as plant hormones. Strigolactones (SLs) comprise a novel class of plant hormones that inhibit shoot branching. The MORE AXILLARY GROWTH2 (MAX2)/DWARF 3 (D3)/RAMOSUS (RMS4) genes encode proteins involved in the SL signaling pathway in various plants...
May 15, 2018: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/29775330/constraining-alternative-theories-of-gravity-using-pulsar-timing-arrays
#17
Neil J Cornish, Logan O'Beirne, Stephen R Taylor, Nicolás Yunes
The opening of the gravitational wave window by ground-based laser interferometers has made possible many new tests of gravity, including the first constraints on polarization. It is hoped that, within the next decade, pulsar timing will extend the window by making the first detections in the nanohertz frequency regime. Pulsar timing offers several advantages over ground-based interferometers for constraining the polarization of gravitational waves due to the many projections of the polarization pattern provided by the different lines of sight to the pulsars, and the enhanced response to longitudinal polarizations...
May 4, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29773600/the-interleukin-3-receptor-cd123-targeted-sl-401-mediates-potent-cytotoxic-activity-against-cd34-cd123-cells-from-acute-myeloid-leukemia-myelodysplastic-syndrome-patients-and-healthy-donors
#18
Rajeswaran Mani, Swagata Goswami, Bhavani Gopalakrishnan, Rahul Ramaswamy, Ronni Wasmuth, Minh Tranh, Xiaokui Mo, Amber Gordon, Donna Bucci, David M Lucas, Alice Mims, Christopher Brooks, Adrienne Dorrance, Alison Walker, William Blum, John C Byrd, Gerard Lozanski, Sumithira Vasu, Natarajan Muthusamy
Diseases with clonal hematopoiesis such as myelodysplastic syndrome and acute myeloid leukemia have high rates of relapse. Only a small subset of acute myeloid leukemia patients are cured with chemotherapy alone. Relapse in these diseases occurs at least in part due to the failure to eradicate leukemic stem cells or hematopoietic stem cells in myelodysplastic syndrome. CD123, the alpha chain of the interleukin-3 receptor heterodimer, is expressed on the majority of leukemic stem cells and myelodysplastic syndrome hematopoietic stem cells and in 80% of acute myeloid leukemia...
May 17, 2018: Haematologica
https://www.readbyqxmd.com/read/29771111/the-chemical-history-of-a-bubble
#19
Kenneth S Suslick, Nathan C Eddingsaas, David J Flannigan, Stephen D Hopkins, Hangxun Xu
Acoustic cavitation (the growth, oscillation, and rapid collapse of bubbles in a liquid) occurs in all liquids irradiated with sufficient intensity of sound or ultrasound. The collapse of such bubbles creates local heating and provides a unique source of energy for driving chemical reactions. In addition to sonochemical bond scission and formation, cavitation also induces light emission in many liquids. This phenomenon of sonoluminescence (SL) has captured the imagination of many researchers since it was first observed 85 years ago...
May 17, 2018: Accounts of Chemical Research
https://www.readbyqxmd.com/read/29768643/effects-of-resistance-training-and-combined-training-program-on-repeated-sprint-ability-in-futsal-players
#20
Julio Torres-Torrelo, David Rodríguez-Rosell, Ricardo Mora-Custodio, Fernando Pareja-Blanco, Juan Manuel Yañez-García, Juan José González-Badillo
The purpose of this study was to compare the effects of 6 weeks resistance training (RT) with combined RT and loaded change of direction (CD) exercise on muscle strength and repeated sprint ability (RSA) in futsal players. Thirty-four players (age: 23.7±4.1 years; height: 1.77±0.06 m; body mass: 74.1±8.2 kg) were randomly assigned into three groups: full squat group (SG, n=12), combined full squat and CD group (S+CDG, n=12), and control group (CG, n=10). The RT for SG consisted of full squat with low-load (~45-60% 1RM) and low-volume (2-3 sets and 4-6 repetitions), whereas the S+CDG performed the same RT program combined with loaded CD (2-5 sets of 10 s)...
May 16, 2018: International Journal of Sports Medicine
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