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https://www.readbyqxmd.com/read/28743972/the-power-of-a-control-qubit-in-weak-measurements
#1
Raul Coto, Víctor Montenegro, Vitalie Eremeev, Douglas Mundarain, Miguel Orszag
In the late 80 s, a curious effect suggested by Aharanov et al. was found to lead to an anomalous amplification based on quantum measurements of weakly coupled systems. In this paper, we investigate the quantum control of the weak value amplification of a qubit system coupled to a meter. For the qubit system, the coupling occurs via a second non-interacting qubit, initially quantum correlated with the first one. We show that for weak measurements, the control can be remotely realized via the post-selected state of the second qubit or the degree of squeezing of the meter...
July 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28741386/cloning-expression-and-purification-of-the-%C3%AE-carbonic-anhydrase-from-the-mantle-of-the-mediterranean-mussel-mytilus-galloprovincialis
#2
Rosa Perfetto, Sonia Del Prete, Daniela Vullo, Vincenzo Carginale, Giovanni Sansone, Carmela M A Barone, Mosè Rossi, Fatmah A S Alasmary, Sameh M Osman, Zeid AlOthman, Claudiu T Supuran, Clemente Capasso
We cloned, expressed, purified, and determined the kinetic constants of the recombinant α-carbonic anhydrase (rec-MgaCA) identified in the mantle tissue of the bivalve Mediterranean mussel, Mytilus galloprovincialis. In metazoans, the α-CA family is largely represented and plays a pivotal role in the deposition of calcium carbonate biominerals. Our results demonstrated that rec-MgaCA was a monomer with an apparent molecular weight of about 32 kDa. Moreover, the determined kinetic parameters for the CO2 hydration reaction were kcat =  4...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28735266/a-curious-case-of-picc-line-knot-formation
#3
Sarah Keulemans, M Voormolen, M Deplancke, H Blom
No abstract text is available yet for this article.
July 22, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28733019/sonochemical-synthesis-of-hydrogenated-amorphous-silicon-nanoparticles-from-liquid-trisilane-at-ambient-temperature-and-pressure
#4
Andrew P Cádiz Bedini, Benjamin Klingebiel, Martina Luysberg, Reinhard Carius
Silicon nanoparticles (Si-NPs) are increasing in relevance in diverse fields of scientific and nanotechnological inquiry, where currently some of the most important areas of research involve energy storage and biomedical applications. The present article is concerned with a curious and scalable method for the preparation of discrete, unoxidized, hydrogenated, and amorphous Si-NPs of tunable size in the range of 1.5-50nm. Using ultrasound generated with a conventional ultrasonic horn, the "fusion" of Si-NPs is demonstrated at ambient temperature and pressure by sonicating solutions containing readily available, semiconductor-grade purity trisilane (Si3H8)...
November 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28730896/cannabinoid-hyperemesis-syndrome-potential-mechanisms-for-the-benefit-of-capsaicin-and-hot-water-hydrotherapy-in-treatment
#5
John R Richards, Jeff M Lapoint, Guillermo Burillo-Putze
INTRODUCTION: Cannabinoid hyperemesis syndrome is a clinical disorder that has become more prevalent with increasing use of cannabis and synthetic cannabinoids, and which is difficult to treat. Standard antiemetics commonly fail to alleviate the severe nausea and vomiting characteristic of the syndrome. Curiously, cannabinoid hyperemesis syndrome patients often report dramatic relief of symptoms with hot showers and baths, and topical capsaicin. OBJECTIVES: In this review, we detail the pharmacokinetics and pharmacodynamics of capsaicin and explore possible mechanisms for its beneficial effect, including activation of transient receptor potential vanilloid 1 and neurohumoral regulation...
July 21, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28726903/reversible-trans-%C3%A2-cis-photoisomerizations-of-re-co-3-ph2phen-stpycn-towards-molecular-machines
#6
Kassio P S Zanoni, Neyde Y Murakami Iha
In our search for light powered molecular devices, a novel fac-[Re(CO)3(ph2phen)(trans-stpyCN)](+) complex was synthesized to show switchable trans-cis configurations of the coordinated stpyCN ligand through efficient and reversible photoassisted isomerizations. Controlled photolyses of acetonitrile solutions led to spectral changes ascribed to reversible trans ⇌ cis photoisomerization processes. A remarkable quantum yield for the back cis-to-trans isomerization was obtained, with the same magnitude of the trans-to-cis photoprocess, and curiously, both trans- and cis-isomers are emissive at room temperature...
July 20, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28725864/dying-from-cancer-communication-empathy-and-the-clinical-imagination
#7
Larry D Cripe, Richard M Frankel
Medical oncologists and patients with advanced cancer struggle to discuss prognosis, goals, options, and values in a timely fashion. As a consequence, many patients die receiving aggressive treatment potentially inconsistent with their fully informed preferences and experience increased symptom burden and distress. The goals of patient - oncologist communication include exchanging information, building relationship, and engaging in shared decisions. Empathy is perhaps especially essential to effective patient - oncologist communication when the end of life is approaching...
June 2017: Journal of patient experience
https://www.readbyqxmd.com/read/28700240/the-curious-case-of-2-propyl-1h-benzimidazole-in-the-solid-state-an-experimental-and-theoretical-study
#8
María Mar Quesada-Moreno, Aurora J Cruz-Cabeza, Juan Ramón Avilés-Moreno, Pilar Cabildo, Rosa M Claramunt, Ibon Alkorta, José Elguero, Francisco Javier Zuñiga, Juan Jesús López-González
2-Propyl-1H-benzimidazole (2PrBzIm) is a small molecule, commercially available, which displays a curious behavior in the solid state. 2PrBzIm, although devoid of chirality, by fast rotation about a single bond of the propyl group in solution, crystallizes as a conglomerate showing chiroptical properties. An exhaustive analysis of its crystal structure and a wide range of experiments monitored by VCD spectroscopy have eliminated all possibilities of an artifact. What remains is a new example of the unexplained phenomenon of persistent supramolecular chirality...
July 12, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28699241/calcium-dependence-of-spontaneous-neurotransmitter-release
#9
REVIEW
Courtney L Williams, Stephen M Smith
Spontaneous release of neurotransmitters is regulated by extracellular [Ca(2+) ] and intracellular [Ca(2+) ]. Curiously, some of the mechanisms of Ca(2+) signaling at central synapses are different at excitatory and inhibitory synapses. While the stochastic activity of voltage-activated Ca(2+) channels triggers a majority of spontaneous release at inhibitory synapses, this is not the case at excitatory nerve terminals. Ca(2+) release from intracellular stores regulates spontaneous release at excitatory and inhibitory terminals, as do agonists of the Ca(2+) -sensing receptor...
July 12, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/28696261/complex-interplay-of-kinetic-factors-governs-the-synergistic-properties-of-hiv-1-entry-inhibitors
#10
Koree W Ahn, Michael J Root
The homotrimeric HIV-1 envelope glycoprotein (Env) undergoes receptor-triggered structural changes that mediate viral entry through membrane fusion. This process is inhibited by chemokine-receptor antagonists (CoRAs) that block Env-receptor interactions and by fusion inhibitors (FIs) that disrupt Env conformational transitions. Synergy between CoRAs and FIs has been attributed to a CoRA-dependent decrease in the rate of viral membrane fusion that extends the lifetime of the intermediate state targeted by FIs...
July 10, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28691813/microbiome-mediated-biotransformation-of-cane-toad-bufagenins
#11
Venkatanambi Kamalakkannan, Angela A Salim, Robert J Capon
Cane toads are an invasive pest species in which all life stages employ cardiotoxic bufagenins as a chemical defense against predators. Curiously, the bufagenin profiles of eggs and tadpoles are more complex than those of parotoid secretion, the principle mechanism of toxin delivery in adult toads. In an effort to understand this complexity, we determined that selected strains of adult toad parotoid-gland-associated Gram-positive bacteria, Bacillus spp., were capable of biotransforming secreted bufagenins, marinobufagenin (1), telocinobufagenin (2), bufalin (3), and resibufagenin (4), to hydroxylated scaffolds commonly encountered in cane toad eggs and tadpoles...
July 10, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28690673/professor-umberto-veronesi-a-physician-a-researcher-a-brilliant-man
#12
Ketti Mazzocco, Chiara Marzorati, Gabriella Pravettoni
Many of those who work in oncology or deal with cancer patients know of Prof. Umberto Veronesi and none of them could deny the importance of his battle against cancer. He devoted his life to improving cancer treatment and quality of life for patients. He was a physician, and a politician, but above all he was a researcher. He embodied the true spirit of research, i.e., to believe in something and investigate every aspect of it until all the questions about it have been satisfactorily answered. He never gave up when faced with challenges, and he never stopped being curious...
2017: Ecancermedicalscience
https://www.readbyqxmd.com/read/28684380/quantum-gravity-and-taoist-cosmology-exploring-the-ancient-origins-of-phenomenological-string-theory
#13
REVIEW
Steven M Rosen
This paper carries forward the author's contribution to PBMP's previous special issue on Integral Biomathics (Rosen 2015). In the earlier paper, the crisis in contemporary theoretical physics was described and it was demonstrated that the problem can be addressed effectively only by shifting the foundations of physics from objectivist Cartesian philosophy to phenomenological philosophy. To that end, a phenomenological string theory was proposed based on qualitative topology and hypercomplex numbers. The current presentation takes this further by delving into the ancient Chinese origin of phenomenological string theory...
July 3, 2017: Progress in Biophysics and Molecular Biology
https://www.readbyqxmd.com/read/28682032/-diabetic-nephropathy-and-cardiovascular-risk
#14
Luigi Rossi, Loreto Gesualdo
The curious case of the Diabetic Nephropathy (DN) : paraphrasing the name of a famous movie is certainly an unusual way to deal with a medical-scientific issue, but it could be extremely functional. Benjamin Button, with his backward life, breaks the unquestionable certainty of human life progressing through fixed steps. Similarly, the knowledge of DN seems go backwards; therefore, although it is a pathology which clinicians are usually sure, maybe too sure, they know every aspect of, the clinical nephrologist managing a diabetic patient often finds himself/herself far from his/her old certainties and proper answers...
March 2017: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/28681855/fast-and-curious
#15
Rémy Pawlak, Tobias Meier
No abstract text is available yet for this article.
July 6, 2017: Nature Nanotechnology
https://www.readbyqxmd.com/read/28669698/the-curious-incident-of-spotty-calcium-in-unstable-atherosclerotic-plaque
#16
EDITORIAL
Gary S Mintz
No abstract text is available yet for this article.
May 25, 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28665455/leiomyoma-of-the-deferens-a-curious-and-extremely-rare-disease
#17
Aldo F De Rose, Guglielmo Mantica, Nataniele Piol, Carlo Toncini, Bruno Spina, Carlo Terrone
INTRODUCTION: Leiomyomas are rare benign tumors that can occur in the male urinary tract. We present a unique case of leiomyoma of the vas deferens. CASE DESCRIPTION: We present the clinical case of a 69-year-old patient with a suspected bulk close to the right epididymis, which turned out to be a leiomyoma of the vas deferens. To our knowledge, it is the fourth case in literature. CONCLUSIONS: A proper identification and the knowledge of this pathology, even if it is a very unusual event, is necessary to avoid a surgical over treatment and preserve the testicle, by removing only the tumor...
June 26, 2017: Urologia
https://www.readbyqxmd.com/read/28659511/ronald-epstein-md-bringing-mindfulness-into-the-examination-room
#18
Ronald Epstein
Advances in Mind-Body Medicine (Advances): You have come out with a book recently, titled Attending: Medicine, Mindfulness, and Humanity. What was the motive for writing this book? Dr Epstein: I knew that it was time to expand beyond writing for medical audiences and peer-reviewed journals when 2 realizations struck me. One is that important change in medicine often comes from the outside in as opposed to from the inside out. The degree to which the public is educated and energized about an issue can produce a change in medicine...
April 2017: Advances in Mind-body Medicine
https://www.readbyqxmd.com/read/28659078/what-the-election-means-for-the-nhs
#19
Nick Evans
In many ways it is curious that the NHS did not feature more prominently in the election campaign. Polling consistently showed it was the most important issue for the electorate after Brexit.
June 29, 2017: Nursing Management (Harrow)
https://www.readbyqxmd.com/read/28653167/why-frankenstein-is-a-stigma-among-scientists
#20
Peter Nagy, Ruth Wylie, Joey Eschrich, Ed Finn
As one of the best known science narratives about the consequences of creating life, Mary Shelley's Frankenstein; or, The Modern Prometheus (1818) is an enduring tale that people know and understand with an almost instinctive familiarity. It has become a myth reflecting people's ambivalent feelings about emerging science: they are curious about science, but they are also afraid of what science can do to them. In this essay, we argue that the Frankenstein myth has evolved into a stigma attached to scientists that focalizes the public's as well as the scientific community's negative reactions towards certain sciences and scientific practices...
June 26, 2017: Science and Engineering Ethics
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