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PubMed Journals Articles About "Qatar Airways Expected Access Contingency Routes August Source" RSS

05:55 EDT 22nd September 2017 | BioPortfolio

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Showing "Qatar Airways expected access contingency routes August source" PubMed Articles 1–25 of 10,000+

Qigong in Cancer Care: Theory, Evidence-Base, and Practice.

Background: The purpose of this discussion is to explore the theory, evidence base, and practice of Qigong for individuals with cancer. Questions addressed are: What is qigong? How does it work? What evidence exists supporting its practice in integrative oncology? What barriers to wide-spread programming access exist? Methods: Sources for this discussion include a review of scholarly texts, the Internet, PubMed, field observations, and expert opinion. Results: Qigong is a gentle, mind/body exercise integral...


Add-On Complementary Medicine in Cancer Care: Evidence in Literature and Experiences of Integration.

Background: According to the literature an increasing number of cancer patients demand for complementary therapies during their disease. Research has demonstrated that some of these therapies are effective and safe as adjunctive treatments in specific symptoms of these patients. Methods: The aims of the paper are to review the main and recent papers of international literature on the effectiveness of complementary medicine (CM) therapies on side effects of anti-cancer protocols and improvement in the qualit...

Angelica sinensis (Oliv.) Diels: Influence of Value Chain on Quality Criteria and Marker Compounds Ferulic Acid and Z-Ligustilide.

Background:Dang gui (Apiaceae; Angelica sinensis radix) is among the most often used Chinese medicinal plants. However, hardly anything is known about its value chain and its influence on the main marker compounds of the drug. The aim of this study is to investigate the value chain of dang gui in Gansu and Yunnan, and the analysis of the marker compounds ferulic acid and Z-ligustilide concentration in relation to quality criteria such as the production area and size of the roots. Methods: During six months ...


Nonspecific Feelings Expected and Experienced during or Immediately after Electroacupuncture: A Pilot Study in a Teaching Situation.

Some feelings elicited by acupuncture-type interventions are "nonspecific", interpretable as resulting from the placebo effect, our own self-healing capacities-or, indeed, the flow of qi. Expectation is thought to contribute to these nonspecific effects. Here we describe the use of two innovative 20-item questionnaires (EXPre20 and EXPost20) in a teaching situation.

Eryngium foetidum L. Essential Oils: Chemical Composition and Antioxidant Capacity.

Background:Eryngium foetidum essential oils from Nigeria were investigated for the first time in order to ascertain their potency as natural antioxidants. E. foetidum is an aromatic and medicinal herb used in ethno-medicine and as a traditional spice for foods. Methods: The hydro-distilled oils of E. foetidum were subjected to gas chromatography-mass spectrometry (GC-MS) analysis. Free radical scavenging capacity of the volatile oils was determined using 2, 2-diphenyl-1-picrylhydrazyl (DPPH) and ferric redu...

Physicochemical Properties, Antioxidant and Cytotoxic Activities of Crude Extracts and Fractions from Phyllanthus amarus.

Background:Phyllanthus amarus (P. amarus) has been used as a medicinal plant for the prevention and treatment of chronic ailments such as diabetes, hepatitis, and cancer. Methods: The physicochemical properties, antioxidant and cytotoxic activities of crude extracts and fractions from P. amarus were determined using spectrophotometric method. Results: The P. amarus methanol (PAM) extract had lower levels of residual moisture (7.40%) and water activity (0.24) and higher contents of saponins, phenolics, flavo...

Report from the 9th International Symposium on Auriculotherapy Held in Singapore, 10-12 August 2017.

A Review on Ethno-Medicinal and Pharmacological Activities of Sphenocentrum jollyanum Pierre.

Sphenocentrum jollyanum Pierre is a member of a diverse family of plants known as Menispermaceae. They are famous for a plethora of important biological functions. S. jollyanum is a shrub native to the tropical forest zones of West Africa and thrives in deep shade. It is widely cultivated in Cameroun, Sierra Leone, Nigeria, Ghana, and Côte d'Ivoire. S. jollyanum is employed in folk medicine as a cure for wounds, fever, coughs, high blood pressure, breast tumor, constipation, and as an aphrodisiac. Phytoche...

Biological Activities of Three Essential Oils of the Lamiaceae Family.

Herbs and spices have been used since ancient times to improve the sensory characteristics of food, to act as preservatives and for their nutritional and healthy properties. Herbs and spices are generally recognized as safe (GRAS) and are excellent substitutes for chemical additives. Essential oils are mixtures of volatile compounds obtained, mainly by steam distillation, from medicinal and aromatic plants. They are an alternative to synthetic additives for the food industry, and they have gained attention ...

Ion Transport in Confined Geometries below the Nanoscale. Access Resistance Dominates Protein Channel Conductance in Diluted Solutions.

Synthetic nanopores and mesoscopic protein channels have common traits like the importance of electrostatic interactions between the permeating ions and the nanochannel. Ion transport at the nanoscale occurs under confinement conditions so that the usual assumptions made in microfluidics are challenged, among others, by interfacial effects such as access resistance (AR). Here we show that a sound interpretation of electrophysiological measurements in terms of channel ion selective properties requires the co...

Novel Strategies for the Production of Fuels, Lubricants, and Chemicals from Biomass.

Growing concern with the environmental impact of CO2 emissions produced by combustion of fuels derived from fossil-based carbon resources has stimulated the search for renewable sources of carbon. Much of this focus has been on the development of methods for producing transportation fuels, the major source of CO2 emissions today, and to a lesser extent on the production of lubricants and chemicals. First-generation biofuels such as bioethanol, produced by the fermentation of sugar cane- or corn-based sugars...

New Triplet Sensitization Routes for Photon Upconversion: Thermally Activated Delayed Fluorescence Molecules, Inorganic Nanocrystals, and Singlet-to-Triplet Absorption.

Photon upconversion based on triplet-triplet annihilation (TTA-UC) has attracted much interest because of its possible applications to renewable energy production and biological fields. In particular, the UC of near-infrared (NIR) light to visible (vis) light is imperative to overcome the Shockley-Queisser limit of single-junction photovoltaic cells, and the efficiency of photocatalytic hydrogen production from water can also be improved with the aid of vis-to-ultraviolet (UV) UC. However, both processes ha...

C- and N-Metalated Nitriles: The Relationship between Structure and Selectivity.

Metalated nitriles are exceptional nucleophiles capable of forging highly hindered stereocenters in cases where enolates are unreactive. The excellent nucleophilicity emanates from the powerful inductive stabilization of adjacent negative charge by the nitrile, which has a miniscule steric demand. Inductive stabilization is the key to understanding the reactivity of metalated nitriles because this permits a continuum of structures that range from N-metalated ketenimines to nitrile anions. Solution and solid...

O2 Reduction in Enzymatic Biofuel Cells.

Catalytic four-electron reduction of O2 to water is one of the most extensively studied electrochemical reactions due to O2 exceptional availability and high O2/H2O redox potential, which may in particular allow highly energetic reactions in fuel cells. To circumvent the use of expensive and inefficient Pt catalysts, multicopper oxidases (MCOs) have been envisioned because they provide efficient O2 reduction with almost no overpotential. MCOs have been used to elaborate enzymatic biofuel cells (EBFCs), a su...

A biomimetic stress sensitive hydrogel controlled by DNA nanoswitches.

One of the most intriguing and important aspects of biological supramolecular materials is its ability to adapt macroscopic properties in response to environmental cues for controlling cellular processes. Recently, bulk matrix stiffness, in particular stress sensitivity, has been established as a key mechanical cue in cellular function and development. However, stress-stiffening capacity and the ability to control and exploit this key characteristic is relatively new to the field of biomimetic materials. In...

Ab Initio Modeling of Structure and Properties of Single and Mixed Alkali Silicate Glasses.

A density functional theory (DFT) based ab initio molecular dynamics (AIMD) has been applied to simulate models of single and mixed alkali silicate glasses with two different molar concentrations of alkali oxides. The structural environments and spatial distributions of alkali ions in the 10 simulated models with 20% and 30% of Li, Na, K and equal proportions of Li-Na and Na-K are studied in detail for subtle variations among the models. Quantum mechanical calculations of electronic structures, interatomic ...

Imaging the Photodissociation Dynamics of Nitrous Acid (HONO): The Role of Torsion.

We present the findings of the first imaging study of trans-HONO and cis-HONO photodissociation through the band and of the 1A" -1A' transition. The NO photofragment was probed by (1+1) Resonance Enhanced Multiphoton Ionization (REMPI) and studied using the DC slice imaging technique with our Finite Slice reconstruction method (FinA). The NO state-specific translational energy distributions show some rotational structure corresponding to the internal state distribution in the OH co-fragment. All images show...

Light Absorption of Secondary Organic Aerosol: Composition and Contribution of Nitro-aromatic Compounds.

Secondary organic aerosol (SOA) might affect the atmospheric radiation balance through absorbing light at shorter visible and UV wavelengths. However, the composition and optical properties of light-absorbing SOA is poorly understood. In this work, SOA filter samples were collected during individual chamber experiments with three biogenic and eight aromatic volatile organic compound (VOC) precursors in the presence of NOX and H2O2. Compared with the SOA generated using the aromatic precursors, biogenic SOA ...

The Case of Missing Airways in COPD.

Divergent impact of gender in advancement of liver injuries, diseases, and carcinogenesis.

Several investigations have revealed that liver diseases exhibit gender biases, but identifying the root causes of such biases has been challenging. Evidence of gender differences in liver function is present from the early stage of embryonic development. The differences in access to care and treatment as well as diagnostic deliberation may affect gender-specific differences in liver disease progression. Apart from the pathogenesis, xenobiotic metabolism, immune responses, gene expressions, mitochondrial fu...

Microalgae as a source of high-value bioactive compounds.

Microalgae are one of the oldest microorganisms, that grow in various hostile environments, ranging from deserts to Antarctica. The microalgae sustain life in such harsh environments through generation of secondary metabolites. Microalgae biosynthesize a large number of diverse bioactive metabolites with activities on cancer, neurodegenerative diseases, and infectious diseases. Here, we highlight the bioactive compounds that are isolated from microalgae for the purpose of using them as food, and as chemical...

Alzheimer's disease diagnostics by a 3D deeply supervised adaptable convolutional network.

Early diagnosis is playing an important role in preventing progress of the Alzheimer's disease (AD). This paper proposes to improve the prediction of AD with a deep 3D Convolutional Neural Network (3D-CNN), which can show generic features capturing AD biomarkers extracted from brain images, adapt to different domain datasets, and accurately classify subjects with improved fine-tuning method. The 3D-CNN is built upon a convolutional autoencoder, which is pre-trained to capture anatomical shape variations in ...

Biomass breakdown: A review on pretreatment, instrumentations and methods.

Enzymatic breakdown of lignocellulosic biomass for liquid fuel production is a viable alternative to fossil fuels, due to its renewable and environmental friendly nature. Naturally, plants protect their cell wall polysaccharides by giving limited access to the cell wall degrading enzymes. Lignocellulose breakdown requires proper pretreatments that disrupt the close inter-component association between the constituents of the plant cell wall. For efficient biomass conversion, the choice of the correct pretrea...

Genetic manipulation of microalgae for the production of bioproducts.

Microalgae have been used during the past four decades in the Bio-industries for the production of high added value products and development of useful approaches with environmental applications. The fast growing rate, simple growth requirements and using sunlight as the major source of energy are the key factors for usage of algae. In the past 15 years, a considerable progress has been made regarding the use of microalgae for production of proteins, nutraceuticals, food supplements, molecular tags for diagn...

Identification of biphenyl 2, 3-dioxygenase and its catabolic role for phenazine degradation in Sphingobium yanoikuyae B1.

Phenazines are important nitrogen-containing secondary metabolites that display a range of biological functionalities. However, these compounds have shown lethal effects on humans and, the fate of phenazine in the ecosystem remains uncertain. In this study, we investigated that Sphingobium yanoikuyae B1 could utilize phenazine as a sole carbon source for growth. Intermediate produced during phenazine degradation was purified and identified as 1, 2-dihydrogen 1, 2-dihydroxy phenazine. Biphenyl 2, 3-dioxygena...


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