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https://www.readbyqxmd.com/read/28549562/n-o-346-%C3%A3-ge-g%C3%A3-n%C3%A3-sique-avanc%C3%A3-et-fertilit%C3%A3
#1
Kimberly E Liu, Allison Case
OBJECTIFS: Sensibiliser la population à la baisse naturelle de la fertilité avec l'âge, chez les femmes et les hommes, et à l'égard de la reproduction naturelle et des technologies de procréation assistée (TPA); formuler des recommandations de prise en charge; et analyser les méthodes d'évaluation du vieillissement ovarien. OPTIONS: La présente directive clinique passe en revue les options offertes pour l'évaluation de la réserve ovarienne et pour le traitement de l'infertilité faisant appel aux TPA chez les femmes d'âge génésique avancé infertiles...
May 23, 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28495200/genotyping-of-theileria-lestoquardi-from-sheep-and-goats-in-sudan-to-support-control-of-malignant-ovine-theileriosis
#2
A M Ali, D A Salih, M N Njahira, S K Hassan, A M El Hussein, Z Liu, H Yin, R Pelle, R A Skilton
Theileriosis, caused by parasitic protozoa of the genus Theileria parasites, are among the major tick-borne diseases of ruminant livestock. The largest economic losses are attributed in particular to those caused by the leukoproliferative species of Theileria: T. parva, T. annulata and T. lestoquardi. Theileria lestoquardi is transmitted by Hyalomma ticks and causes malignant ovine theileriosis (MOT), a disease that is particularly prevalent in Sudan. The disease is considered of a high economic importance in Sudan, where export of sheep is a major component of the national economy...
May 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28493319/an-elitist-multiobjective-tabu-search-for-optimal-design-of-groundwater-remediation-systems
#3
Yun Yang, Jianfeng Wu, Jinguo Wang, Zhifang Zhou
This study presents a new multiobjective evolutionary algorithm (MOEA), the elitist multiobjective tabu search (EMOTS), and incorporates it with MODFLOW/MT3DMS to develop a groundwater simulation-optimization (SO) framework based on modular design for optimal design of groundwater remediation systems using pump-and-treat (PAT) technique. The most notable improvement of EMOTS over the original multiple objective tabu search (MOTS) lies in the elitist strategy, selection strategy, and neighborhood move rule. The elitist strategy is to maintain all nondominated solutions within later search process for better converging to the true Pareto front...
May 10, 2017: Ground Water
https://www.readbyqxmd.com/read/28471736/cognitive-motor-dual-task-ability-of-athletes-with-and-without-intellectual-impairment
#4
Debbie Van Biesen, Lore Jacobs, Katina McCulloch, Luc Janssens, Yves C Vanlandewijck
Cognition is important in many sports, for example, making split-second-decisions under pressure, or memorising complex movement sequences. The dual-task (DT) paradigm is an ecologically valid approach for the assessment of cognitive function in conjunction with motor demands. This study aimed to determine the impact of impaired intelligence on DT performance. The motor task required balancing on one leg on a beam, and the cognitive task was a multiple-object-tracking (MOT) task assessing dynamic visual-search capacity...
May 4, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28463274/theoretical-design-for-generation-of-slow-light-in-a-two-dimensional-magneto-optical-trap-using-electromagnetically-induced-transparency
#5
Sumit Bhushan, Raghavan K Easwaran
In this paper, we propose a novel technique for slow light experiments using electromagnetically induced transparency using a two-dimensional magneto optical trap (2D-MOT). A compact 2D-MOT design efficient for quantum memory applications with adjustable optical depth (OD) is proposed. We estimated the OD for our 2D-MOT setup and found that light group velocities as low as 1.4 m/s can be attained. Our design for 2D-MOT allows precise control and optimization of the OD such that high storage efficiencies could also be achieved...
May 1, 2017: Applied Optics
https://www.readbyqxmd.com/read/28459508/effect-of-electric-acupoint-stimulation-on-gastrointestinal-hormones-and-motility-among-geriatric-postoperative-patients-with-gastrointestinal-tumors
#6
Lili Hou, Lei Xu, Yan Shi, Fen Gu
OBJECTIVE: To evaluate the effects of electric acupoint stimulation on gastrointestinal hormones and motility among geriatric postoperative patients with gastrointestinal tumors, and to explore an efficient and noninvasive method for postoperative recovery of bowel functions. METHODS: Forty patients were randomly and evenly assigned into a regular nursing care group (RNC) and an acupoint electric stimulation group (AES). Patients in the RNC group received regular nursing care and patients in the AES group received regular nursing care plus electric stimulation of acupoints...
August 2016: Journal of Traditional Chinese Medicine, Chung i Tsa Chih Ying Wen Pan
https://www.readbyqxmd.com/read/28458145/chlorite-reactivity-with-myoglobin-analogy-with-peroxide-and-nitrite-chemistry
#7
Cristina Bischin, Augustin Mot, Andrei Stefancu, Nicolae Leopold, Denisa Hathazi, Grigore Damian, Radu Silaghi-Dumitrescu
Stopped-flow UV-vis data allow for the first time direct spectroscopic detection of a ferryl species during the reaction of met myoglobin (Mb) with chlorite, analogous to what is observed in the reaction with peroxides. Ferryl is also observed in the reaction of oxy Mb+chlorite. A pathway involving Fe-O-O-ClO2 is explored by analogy with the Fe-O-O-NO and Fe-O-O-NO2 previously proposed as intermediates in the reactions of oxy globins with nitric oxide and nitrite, respectively. However, Fe-O-O-ClO2 is not detectable in these stopped-flow experiments and is in fact, unlike its nitrogenous congeners, predicted by density functional theory (DFT) to be impossible for a heme complex...
April 23, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28454895/sustained-attention-to-objects-motion-sharpens-position-representations-attention-to-changing-position-and-attention-to-motion-are-distinct
#8
Christina J Howard, Victoria Rollings, Amy Hardie
In tasks where people monitor moving objects, such the multiple object tracking task (MOT), observers attempt to keep track of targets as they move amongst distracters. The literature is mixed as to whether observers make use of motion information to facilitate performance. We sought to address this by two means: first by superimposing arrows on objects which varied in their informativeness about motion direction and second by asking observers to attend to motion direction. Using a position monitoring task, we calculated mean error magnitudes as a measure of the precision with which target positions are represented...
May 4, 2017: Vision Research
https://www.readbyqxmd.com/read/28448037/cooling-an-optically-trapped-ultracold-fermi-gas-by-periodical-driving
#9
Jiaming Li, Leonardo F de Melo, Le Luo
We present a cooling method for a cold Fermi gas by parametrically driving atomic motions in a crossed-beam optical dipole trap (ODT). Our method employs the anharmonicity of the ODT, in which the hotter atoms at the edge of the trap feel the anharmonic components of the trapping potential, while the colder atoms in the center of the trap feel the harmonic one. By modulating the trap depth with frequencies that are resonant with the anharmonic components, we selectively excite the hotter atoms out of the trap while keeping the colder atoms in the trap, generating parametric cooling...
March 30, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28431864/toward-an-integrative-and-predictive-sperm-quality-analysis-in-bos-taurus
#10
J L Yániz, C Soler, C Alquézar-Baeta, P Santolaria
There is a need to develop more integrative sperm quality analysis methods, enabling researchers to evaluate different parameters simultaneously cell by cell. In this work, we present a new multi-parametric fluorescent test able to discriminate different sperm subpopulations based on their labeling pattern and motility characteristics. Cryopreserved semen samples from 20 Holstein bulls were used in the study. Analyses of sperm motility using computer-assisted sperm analysis (CASA-mot), membrane integrity by acridine orange-propidium iodide combination and multi-parametric by the ISAS(®)3Fun kit, were performed...
March 31, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28428259/rabl2-interacts-with-the-ift-b-complex-and-cep19-and-participates-in-ciliary-assembly
#11
Yuya Nishijima, Yohei Hagiya, Tomohiro Kubo, Ryota Takei, Yohei Katoh, Kazuhisa Nakayama
Proteins localized to the basal body and the centrosome play crucial roles in ciliary assembly and functions. Although RABL2 and CEP19 are conserved in ciliated organisms and have been implicated in ciliary/flagellar functions, their roles were poorly understood. We here showed that RABL2 interacts with CEP19 and is recruited to the mother centriole and basal body in a CEP19-dependent manner, and that CEP19 is recruited to the centriole probably via its binding to the centrosomal protein FGFR1OP. Disruption of the RABL2 gene in Chlamydomonas reinhardtii resulted in the non-flagellated phenotype, suggesting a crucial role of RABL2 in ciliary/flagellar assembly...
April 20, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28423433/-myositis-ossificans-traumatica-in-the-craniocervical-junction-a-case-report-and-review-of-literature
#12
Andreas Reinke, Michael Kraus, Alexander Wild
Background Myosits ossificans (MO) is a rare but important differential diagnosis for a heterotrophic bony tumor in the muscles. It is often misdiagnosed as a malignant tumor. With a previous trauma the diagnosis is myositis ossificans traumatic (MOT). In most cases, it is benign and predominantly seen in the big muscles. But there can be malignant etiologies too. Case Description We report a rare case of MO in the muscle of the craniocervical junction. This 37-year-old woman had a riding accident years ago...
April 19, 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/28420194/multiple-objects-fusion-tracker-using-a-matching-network-for-adaptively-represented-instance-pairs
#13
Sang-Il Oh, Hang-Bong Kang
Multiple-object tracking is affected by various sources of distortion, such as occlusion, illumination variations and motion changes. Overcoming these distortions by tracking on RGB frames, such as shifting, has limitations because of material distortions caused by RGB frames. To overcome these distortions, we propose a multiple-object fusion tracker (MOFT), which uses a combination of 3D point clouds and corresponding RGB frames. The MOFT uses a matching function initialized on large-scale external sequences to determine which candidates in the current frame match with the target object in the previous frame...
April 18, 2017: Sensors
https://www.readbyqxmd.com/read/28417906/random-finite-set-based-bayesian-filtering-with-opencl-in-a-heterogeneous-platform
#14
Biao Hu, Uzair Sharif, Rajat Koner, Guang Chen, Kai Huang, Feihu Zhang, Walter Stechele, Alois Knoll
While most filtering approaches based on random finite sets have focused on improving performance, in this paper, we argue that computation times are very important in order to enable real-time applications such as pedestrian detection. Towards this goal, this paper investigates the use of OpenCL to accelerate the computation of random finite set-based Bayesian filtering in a heterogeneous system. In detail, we developed an efficient and fully-functional pedestrian-tracking system implementation, which can run under real-time constraints, meanwhile offering decent tracking accuracy...
April 12, 2017: Sensors
https://www.readbyqxmd.com/read/28395703/the-measurement-of-transitions-in-cancer-scale
#15
Dena Schulman-Green, Sangchoon Jeon, Ruth McCorkle, Jane Dixon
BACKGROUND AND PURPOSE: Health-illness transitions are changes in life phase, situation, or status related to shifts between health and illness. We report on the development and psychometric evaluation of the Measurement of Transitions in Cancer Scale (MOT-CA), a 7-item instrument that assesses extent and management of a range of transitions experienced by cancer patients. METHODS: We identified content domains, developed operational definitions, generated items, conducted expert review (n = 7) and cognitive interviews (n = 13), and tested MOT-CA with our target population (n = 105)...
April 1, 2017: Journal of Nursing Measurement
https://www.readbyqxmd.com/read/28387587/multiple-object-tracking-as-a-tool-for-parametrically-modulating-memory-reactivation
#16
Jordan Poppenk, Ken A Norman
Converging evidence supports the "nonmonotonic plasticity" hypothesis that, although complete retrieval may strengthen memories, partial retrieval weakens them. Yet, the classic experimental paradigms used to study effects of partial retrieval are not ideally suited to doing so, because they lack the parametric control needed to ensure that the memory is activated to the appropriate degree (i.e., that there is some retrieval but not enough to cause memory strengthening). Here, we present a novel procedure designed to accommodate this need...
April 7, 2017: Journal of Cognitive Neuroscience
https://www.readbyqxmd.com/read/28382027/potential-for-biocontrol-of-hairy-root-disease-by-a-paenibacillus-clade
#17
Lien Bosmans, Irene De Bruijn, Saskia Gerards, Rob Moerkens, Lore Van Looveren, Lieve Wittemans, Bart Van Calenberge, Anneleen Paeleman, Stefan Van Kerckhove, René De Mot, Jef Rozenski, Hans Rediers, Jos M Raaijmakers, Bart Lievens
Rhizogenic Agrobacterium biovar 1 is the causative agent of hairy root disease (HRD) in the hydroponic cultivation of tomato and cucumber causing significant losses in marketable yield. In order to prevent and control the disease chemical disinfectants such as hydrogen peroxide or hypochlorite are generally applied to sanitize the hydroponic system and/or hydroponic solution. However, effective control of HRD sometimes requires high disinfectant doses that may have phytotoxic effects. Moreover, several of these chemicals may be converted to unwanted by-products with human health hazards...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28378843/load-and-polysaccharide-dependent-activation-of-the-na-type-motps-stator-in-the-bacillus-subtilis-flagellar-motor
#18
Naoya Terahara, Yukina Noguchi, Shuichi Nakamura, Nobunori Kami-Ike, Masahiro Ito, Keiichi Namba, Tohru Minamino
The flagellar motor of Bacillus subtilis possesses two distinct H(+)-type MotAB and Na(+)-type MotPS stators. In contrast to the MotAB motor, the MotPS motor functions efficiently at elevated viscosity in the presence of 200 mM NaCl. Here, we analyzed the torque-speed relationship of the Bacillus MotAB and MotPS motors over a wide range of external loads. The stall torque of the MotAB and MotPS motors at high load was about 2,200 pN nm and 220 pN nm, respectively. The number of active stators in the MotAB and MotPS motors was estimated to be about ten and one, respectively...
April 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28377707/cholinergic-potentiation-improves-perceptual-cognitive-training-of-healthy-young-adults-in-three-dimensional-multiple-object-tracking
#19
Mira Chamoun, Frédéric Huppé-Gourgues, Isabelle Legault, Pedro Rosa-Neto, Daniela Dumbrava, Jocelyn Faubert, Elvire Vaucher
A large body of literature supports cognitive enhancement as an effect of cholinergic potentiation. However, it remains elusive whether pharmacological manipulations of cholinergic neurotransmission enhance complex visual processing in healthy individuals. To test this hypothesis, we randomly administered either the cholinergic transmission enhancer donepezil (DPZ; 5 mg P.O.) or placebo (lactose) to young adults (n = 17) 3 h before each session of the three-dimensional (3D) multiple object tracking (3D-MOT) task...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28368640/collisional-cooling-of-light-ions-by-cotrapped-heavy-atoms
#20
Sourav Dutta, Rahul Sawant, S A Rangwala
We experimentally demonstrate cooling of trapped ions by collisions with cotrapped, higher-mass neutral atoms. It is shown that the lighter ^{39}K^{+} ions, created by ionizing ^{39}K atoms in a magneto-optical trap (MOT), when trapped in an ion trap and subsequently allowed to cool by collisions with ultracold, heavier ^{85}Rb atoms in a MOT, exhibit a longer trap lifetime than without the localized ^{85}Rb MOT atoms. A similar cooling of trapped ^{85}Rb^{+} ions by ultracold ^{133}Cs atoms in a MOT is also demonstrated in a different experimental configuration to validate this mechanism of ion cooling by localized and centered ultracold neutral atoms...
March 17, 2017: Physical Review Letters
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