Camouflaging an optical chip to render it invisible

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Researchers have achieved a breakthrough in manipulating light to render an object, such as an optical chip, invisible. According to the recent study published in Nature Scientific Reports, the researchers conceived a new method that deflects and scatters light away from a “cloaking” chip surface so it is not detected. An operational cloaking chip can be an extension of the basic technologies such as radar-absorbing dark paint used on stealth aircraft, local optical camouflage, surface cooling to minimize electromagnetic infrared emissions, or electromagnetic wave scattering.


Prevalence of Use of Electronic Nicotine Delivery Systems (ENDS) to Vape Recreational Drugs by Club Patrons in South London

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Electronic nicotine delivery systems (ENDS, often called e-cigarettes) are nicotine delivery devices that heat nicotine into vapour that is inhaled, a process called ‘vaping’. Use eclipsed nicotine-replacement therapy (NRT) in 2014 but ENDS role in smoking cessation remains controversial. Safety has not been proven and there have been reports to US poison centres regarding potential ENDS-related nicotine toxicity. A further concern is use of ENDS to vape recreational drugs, but there is limited data to substantiate this. The aim of this study was to report on ENDS use to vape recreational drugs in patrons of a South London nightclub where high prevalence of recreational drug use has previously been shown.

A convenience sample of 101 participants was surveyed in March 2015 as part of a larger survey on drug use. Individuals were asked if they used ENDS to vape nicotine and/or other substances (and if so which substances).

Ninety (89.1 %) of respondents were male with median age of 28 years (IQR 23–34). Eighty (79.2 %) currently smoked cigarettes; 20 (19.8 %) currently used ENDS for nicotine. Six (5.9 %) reported using ENDS to take other substances: 2 for ‘liquid cannabis’ and 4 did not elaborate on the substance(s) used. Of these 6, 3 were using ENDS to vape nicotine and 3 had never used them for nicotine.

Computational Analysis of the Design and Experimental Application of the Migration and Durability Testing Device for Oesophageal Stent

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An oesophageal stent durability/migration testing device was developed based on the mathematical analysis of durability mechanism of an oesophageal stent and oesophageal motility, in which the oesophageal stent was assumed to be under simulated in vivo pre-compression load, in vivo creep load and internal environment. Hardware and software simulating an oesophageal tube movement was developed, which consists of six sensors, an Arduino MEGA and LabVIEW LIFO interface. Accurate detection of stent migration in an oesophageal model using camera image Processing analysis and Flexi force Pressure Sensor (FPS) combine was done. The control board for the real-time monitoring of non-vascular oesophageal stents used Arduino MEGA2560. LabVIEW was used to monitor in real time the FPS and bend sensor, camera image processing on the stent durability/migration testing device. The testing results can verify the design of stent’s fatigue life and to ensure the records for the optimization of oesophagus stent design, this can ensure the trustworthiness of oesophagus stent implantation in vivo. This device could further evaluate the effectivity for all type of stents on non-vascular applications and also to test experimental materials on stents. Also, the said device can be modified and applied to test the migration and fatigue life of other GI stents.


A bit of a ‘quantum magic trick’: Experiment shows how to speed up frequency measurement

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The speed-up in frequency measurement comes from quantum mechanics. When a quantum bit is used to measure the frequency of a signal, the strange rules of quantum mechanics allow the frequency measurement to be much more accurate. The technique hinges on the ability to put the quantum bit in a superposition of its two quantum states, and then shift these states around in time with the signal.

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Why the trauma of cancer doesn’t end after treatment

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Just as cancer affects your physical health, it can bring up a wide range of feelings you’re not used to dealing with. It can also make existing feelings seem more intense. They may change daily, hourly, or even minute to minute. This is true whether you’re currently in treatment, done with treatment, or a friend or family member. These feelings are all normal. Often the values you grew up with affect how you think about and deal with cancer.

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Esophageal cancer ‘cell of origin’ identified

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Researchers have identified cells in the upper digestive tract that can give rise to Barrett’s esophagus, a precursor to esophageal cancer. In Barrett’s esophagus, some of the tissue in the tube connecting the mouth to the stomach is replaced by intestinal-like tissue, causing heartburn and difficulty swallowing. Most cases of Barrett’s stem from gastroesophageal reflux disease (GERD) — chronic regurgitation of acid from the stomach into the lower esophagus. A small percentage of people with Barrett’s esophagus develop esophageal adenocarcinoma, the most common form of esophageal cancer

Neurotransmission: a novel mode of cell signalling

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Generally perceived that myelination of axons incredibly upgrades the speed of flag transmission. An energizing new finding is the dynamic correspondence amongst axons and their myelin-shaping oligodendrocytes, including action subordinate motioning from axon to myelin. The oligodendrocyte– myelin complex may thus react by giving metabolic help or modify unobtrusive myelin properties to tweak activity potential proliferation. In this Opinion, we talk about what is known with respect to the atomic physiology of this novel, neurotransmitter like correspondence and theorize on potential parts in ailment states including numerous sclerosis, schizophrenia and Alzheimer infection. A rising valuation for the commitment of white-matter bothers to neurological brokenness recognizes the axo-myelinic neurotransmitter as a potential novel remedial target.