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PubMed Journals Articles About "Flake Should Have Stood Birtherism" RSS

12:23 EDT 24th June 2018 | BioPortfolio

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Showing "Flake Should Have Stood Birtherism" PubMed Articles 1–25 of 72

Study on Flake Formation Behavior and Its Influence Factors in Cr5 Steel.

A flake is a crack that is induced by trapped hydrogen within steel. To study its formation mechanism, previous studies mostly focused on the formation process and magnitude of hydrogen pressure in hydrogen traps such as cavities and cracks. However, according to recent studies, the hydrogen leads to the decline of the mechanical properties of steel, which is known as hydrogen embrittlement, is another reason for flake formation. In addition, the phenomenon of stress induced hydrogen uphill diffusion should...


Modulating Capacitive Response of MoS2 Flake by Controlled Nanostructuring through Focused Laser Irradiation.

Unlike graphene nanostructures, various physical properties of nanostructured MoS2 have remained unexplored due to the lack of established fabrication routes. Herein, we have reported unique electrostatic properties of MoS2 nanostructures, fabricated in a controlled manner of different geometries on 2D flake by using focused laser irradiation technique. Electrostatic force microscopy has been carried out on MoS2 nanostructures by varying tip bias voltage and lift height. The analysis depicts no contrast fli...

Ultrahigh Conductive Copper/Large Flake Size Graphene Heterostructure Thin-Film with Remarkable Electromagnetic Interference Shielding Effectiveness.

To guarantee the normal operation of next generation portable electronics and wearable devices, together with avoiding electromagnetic wave pollution, it is urgent to find a material possessing flexibility, ultrahigh conductive, and superb electromagnetic interference shielding effectiveness (EMI SE) simultaneously. In this work, inspired by a building bricks toy with the interlock system, we design and fabricate a copper/large flake size graphene (Cu/LG) composite thin film (≈8.8 μm) in the light of hig...


A novel green approach for reduction of freestanding graphene oxide: Electrical and electronic structural investigations.

Ion beam irradiation technique has been proposed, for efficient, fast and eco-friendly reduction of graphene oxide (GO), as an alternative to the conventional methods. 5 MeV, Au+ ion beam has been used to reduce the free standing GO flake. Both electronic and nuclear energy loss mechanisms of the irradiation process play a major role in removal of oxygen moieties and recovery of graphene network. Atomic resolution scanning tunnelling microscopy analysis of the irradiated GO flake shows the characteristic ho...

A novel flake-ball-like magnetic FeO/γ-MnO meso-porous nano-composite: Adsorption of fluorinion and effect of water chemistry.

A novel flake-ball-like magnetic FeO/γ-MnO meso-porous nano-composite was synthesized and characterized for defluoridation. Adsorption process, characters, and effects of solution chemistry on the adsorption of flourinion in FeO/γ-MnO were evaluated. The results show that the adsorption of fluorinion in the FeO/γ-MnO nano-composite is fitted with the Pseudo-first model and the Langmuir model, indicating that the adsorption process of fluorinion in the FeO/γ-MnO nano-composite was a physical process and ...

Synthesis of FC-supported Fe through a carbothermal process for immobilizing uranium.

The abundant generation of uranium (U), a radioactive nuclide, engenders a severe hazard to the environment. Iron based materials were used to immobilize U from water, however, the immobilization is limited by the agglomeration of nanoparticle Fe. In this study, a novel carbothermal process was proposed to synthesize flour carbon (FC) supported nano-flake Fe (Fe-FC). Scanning electron microscopy (SEM) and nitrogen isotherm adsorption-desorption analysis were conducted to characterize Fe-FC. The immobilizati...

My first experiences of nurse leadership.

Alan Nobbs reflects on his early experiences of nurse leadership, most of which have thankfully not stood the test of time.

Why the name "Erasmus" for an hospital ?

Why the name "Erasmus" for an hospital ? Apart for local circumstances, there are far more obvious reasons for this choice. Erasmus was in close contact with the medical world. Indeed, he suffered all his life from more or less severe diseases and had therefore frequent contacts with doctors. Also, the ideas he was defending stood for the principle of free inquiry before its time. For these various reasons giving the name « Erasmus » to the university clinics of the Free University of Brussels (ULB) was a...

Standing on a sliding board affects generation of anticipatory and compensatory postural adjustments.

Postural control is compromised in the presence of body instability. We studied anticipatory and compensatory postural adjustments people use to maintain balance while standing on an unstable surface and performing voluntary arm movements. Nine healthy participants stood on a sliding board (that was either locked and as such motionless or unlocked and as such free to move in the anterior-posterior direction) and performed fast bilateral arms flexion. Arm acceleration, bilateral electromyographic activity (E...

Intrinsic ankle stiffness during standing increases with ankle torque and passive stretch of the Achilles tendon.

Individuals may stand with a range of ankle angles. Furthermore, shoes or floor surfaces may elevate or depress their heels. Here we ask how these situations impact ankle stiffness and balance. We performed two studies (each with 10 participants) in which the triceps surae, Achilles tendon and aponeurosis were stretched either passively, by rotating the support surface, or actively by leaning forward. Participants stood freely on footplates which could rotate around the ankle joint axis. Brief, small stiffn...

CIM Journal Club: Gene therapy for spinal muscular atrophy Comment on Mendell et al. N Engl J Med 2017;377:1713-22.

In their landmark paper, Mendell et al. show that infants with spinal muscular atrophy (SMA) reached important motor milestones and survived longer when treated with AVXS-101 (AveXis), a viral vector containing DNA encoding the survival of motor neuron protein (SMN). Patients not only crawled, stood and walked independently, but learned to speak. These results are very encouraging for patients with SMA and offer hope for pediatric and adult patients with other types of motor neuron diseases.

Simpson grading as predictor of meningioma recurrence.

Meningimas are one of the commonest primary brain tumours and the commonest extra-axial primary brain tumour. Despite better understanding of the molecular pathogenesis of the tumours, surgical excision remains the treatment of choice, and in a large proportion of cases, complete excision is curative. Simpson grading for the extent of resection of meningiomas, was introduced more than six decades ago, and has stood the test of time. With modern technological advancements, however, the relevance of Simpson g...

Real-time imaging of adatom-promoted graphene growth on nickel.

Single adatoms are expected to participate in many processes occurring at solid surfaces, such as the growth of graphene on metals. We demonstrate, both experimentally and theoretically, the catalytic role played by single metal adatoms during the technologically relevant process of graphene growth on nickel (Ni). The catalytic action of individual Ni atoms at the edges of a growing graphene flake was directly captured by scanning tunneling microscopy imaging at the millisecond time scale, while force field...

New cytotoxic natural products from the mangrove biome: covering the period 2007-2015.

Nowadays, the mangrove biome is considered to be a profound resource of natural products usually possessing cytotoxicity of a broader range. Covering the period 2007-2015, a total of 21 new naturally occurring compounds has stood out. For example, xylogranin B and swietephragmin C were found to exhibit very potent cytotoxic activity against the colon HCT-116 cells reaching IC50 values of 0.05 and 0.06 μM, respectively. Bearing in mind the efficacy of the majority compounds in the preliminary in vitro scre...

Tuning magnetic soliton phase via dimensional confinement in exfoliated 2D Cr1/3NbS2 thin flakes.

Thin flakes of Cr1/3NbS2 are fabricated successfully via microexfoliation techniques. Temperature-dependent and field-dependent magnetizations of thin flakes with various thicknesses are investigated. When the thickness of the flake is around several hundred nanometers, the softening and eventual disappearance of the bulk soliton peak is accompanied by the appearance of other magnetic peaks at lower magnetic fields. The emergence and annihilation of the soliton peaks are explained and simulated theoreticall...

Metal-Organic Frameworks for High Charge-Discharge Rate in Lithium-Sulfur Battery.

We report a new method to promote the conductivities of metal-organic frameworks (MOFs) by 5 to 7 magnitudes, thus their potential in electrochemical applications can be fully revealed. This method combines the polarity and porosity advantages of MOFs with the conductive feature of conductive polymer, here, polypyrrole (ppy), to construct ppy-MOF compartments for the confinement of sulfur in Li-S battery. The performances of these ppy-S-in-MOF electrodes excel those of the MOF and ppy counterparts, especial...

Time Is Ethics.

Early in my career as a neonatologist, I was called into the hospital for a newborn who would not stop crying. Screaming, really. When I entered the unit, I was greeted by a loud, shrill, distinctive cry. After hearing the history and examining the baby, I just stood there for a while, watching and listening. It took some time, but eventually, I noticed a subtle regularity, a rhythmicity. I took off my watch, placed it on the bed next to the child, and found that the crying briefly grew louder about every s...

Preparation of cyclic prodiginines by mutasynthesis in Pseudomonas putida KT2440.

Prodiginines are a group of naturally occurring pyrrole alkaloids produced by various microorganisms, which are known for their broad biological activities. The production of nature inspired cyclic prodignines was enabled by combining organic syntheses with a mutasynthesis approach using the GRAS (generally recognized as safe) certified host strain Pseudomonas putida. The newly prepared prodiginines exerted an antimicrobial effect against relevant alternative biotechnological microbial hosts while P. putida...

Argonaute Facilitates the Lateral Diffusion of Guide along Its Target and Prevents Guide from Being Pushed Away by Ribosome.

Argonaute (AGO) proteins play central roles in nucleic acid-guided interferences that regulate gene expression and defend against foreign genetic elements in all life. Although much progress has been made on the function of argonaute proteins in target recognition and cleavage, the detailed mechanism of their biological functions is not fully under-stood. Here, using AFM-based single-molecule force spectroscopy, we studied the target-guide dissociation in the absence or presence of Thermus thermophiles AGO ...

The vestibulomyogenic balance response is elevated following high-intensity lengthening contractions of the lower limb.

The purpose was to investigate whether induced muscle weakness of the plantar and dorsiflexors through high-intensity lengthening contractions increases the vestibulomyogenic balance response. Nine males (∼25 years) participated in three experimental testing days to evaluate the vestibular control of standing balance and neuromuscular function of the plantar and dorsiflexors pre- and post (30 min, and 1 and 7 days) high-intensity lengthening plantar and dorsiflexions. To evaluate the vestibular-evoked b...

Distinct recovery of copper and aluminum from waste electric wires using a roll-type electrostatic separator.

Electrostatic separators are commonly employed for the sorting of insulating and conducting fractions of granular mixtures. However, separation of the various metals that compose the conductive fraction still represents a major challenge for the recycling industry. The aim of this paper is to identify the conditions in which a roll-type electrostatic separator could be used for distinctly recover the copper and aluminum from waste electric wires. A numerical model of particle trajectories was employed to pr...

Evaluation matrix for health promotion programs in socially vulnerable territories.

Health promotion has a set of strategies for advancing health and reducing inequalities. However, evaluating the effectiveness of health promotion programs has been a challenge. This paper shows the development and application of the Evaluation Matrix, constructed with qualitative-quantitative and multidimensional indicators supported by public policies targeting socially vulnerable territories. This is a cross-sectional study with the implementation of a health promotion program in order to develop an Eval...

The Problem of Training of Professors of Medicine in Russia of the Beginning of XIX Century.

The article considers an unknown aspect in history of medical education - the project of training of professors of medicine of "natural Russians". The author of the project was Ya.V. Wylie, the physician-in-ordinary of the Emperor, the chief medical inspector of army and the president of the Medical surgical academy. His intention was implemented in 1817-1818 and resulted in cessation of international employments of professors of medicine for Russian universities and medical surgical academies and organizat...

Visual dependence affects postural sway responses to continuous visual field motion in individuals with cerebral palsy.

The current study aimed to explore the impact of visual dependence on sensorimotor coupling of postural sway and visual motion in adults and teens with spastic cerebral palsy (CP). We hypothesized that individuals with CP would exhibit greater magnitudes of sway than healthy individuals, and the presence of visual dependence (VD) would produce instability in the direction of visual motion. Participants stood in a virtual environment in which the visual scene remained static or continuously rotated 30 degre...

An ionic liquid-magnetic graphene composite for magnet dispersive solid-phase extraction of triazine herbicides in surface water followed by high performance liquid chromatography.

A new ionic liquid-magnetic graphene (IL-MG) composite was used as the adsorbent in magnetic dispersive solid-phase extraction to rapidly extract and isolate triazine herbicides from surface water. IL-MG was synthesized by a simple and time-saving one-pot strategy where the synthesis of magnetic Fe3O4, the modification with an IL, and the reduction of graphene oxide to graphene were conducted at the same time. An IL was applied to enrich the interaction mechanism between IL-MG and analytes (π-π, hydrophob...


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