Read by QxMD icon Read

get here

Jasmin C Athas, Catherine P Nguyen, Shailaa Kummar, Srinivasa R Raghavan
The spontaneous folding of flat gel films into tubes is an interesting example of self-assembly. Typically, a rectangular film folds along its short axis when forming a tube; folding along the long axis has been seen only in rare instances when the film is constrained. Here, we report a case where the same free-swelling gel film folds along either its long or short axis depending on the concentration of a solute. Our gels are sandwiches (bilayers) of two layers: a passive layer of cross-linked N,N'-dimethylyacrylamide (DMAA) and an active layer of cross-linked DMAA that also contains chains of the biopolymer alginate...
March 22, 2018: Soft Matter
Estela G García-González, Bladimir Roque-Ramirez, Carlos Palma-Flores, J Manuel Hernández-Hernández
Epigenetic regulation is achieved at many levels by different factors such as tissue-specific transcription factors, members of the basal transcriptional apparatus, chromatin-binding proteins, and noncoding RNAs. Importantly, chromatin structure dictates the availability of a specific genomic locus for transcriptional activation as well as the efficiency with which transcription can occur. Chromatin immunoprecipitation (ChIP) is a method that allows elucidating gene regulation at the molecular level by assessing if chromatin modifications or proteins are present at a specific locus...
2018: Methods in Molecular Biology
Lei Zhao, Jiangtao Cheng
Besides the Wenzel state, liquid droplets on micro/nanostructured surfaces can stay in the Cassie state and consequently exhibit intriguing characteristics such as a large contact angle, small contact angle hysteresis and exceptional mobility. Here we report molecular dynamics (MD) simulations of the wetting dynamics of Cassie-state water droplets on nanostructured ultrahydrophobic surfaces with an emphasis on the genesis of the contact line friction (CLF). From an ab initio perspective, CLF can be ascribed to the collective effect of solid-liquid retarding and viscous damping...
March 22, 2018: Nanoscale
Carolyn E Wilshire, Tom Kindlon, Robert Courtney, Alem Matthees, David Tuller, Keith Geraghty, Bruce Levin
BACKGROUND: The PACE trial was a well-powered randomised trial designed to examine the efficacy of graded exercise therapy (GET) and cognitive behavioural therapy (CBT) for chronic fatigue syndrome. Reports concluded that both treatments were moderately effective, each leading to recovery in over a fifth of patients. However, the reported analyses did not consistently follow the procedures set out in the published protocol, and it is unclear whether the conclusions are fully justified by the evidence...
March 22, 2018: BMC Psychology
Simon Pini, Emma Ingleson, Molly Megson, Linda Clare, Penny Wright, Jan R Oyebode
Background and Objectives: Approximately half the care for people with dementia is provided by families. It is therefore imperative that research informs ways of maintaining such care. In this study, we propose that a needs-led approach can provide a useful, novel means of conceptualizing the impact of caring on the lives of family carers. Our aim was to develop and present a needs-led framework for understanding how providing care impacts on carers' fulfilment of needs. Design and Methods: In this qualitative study, we conducted 42 semistructured interviews with a purposively diverse sample of family carers to generate nuanced contextualized accounts of how caring impacted on carers' lives...
March 19, 2018: Gerontologist
Santanu Mandal, Prabuddha Mukhopadhyay, Chiranjit Ghosh, Mithun Pal, Gourab Dutta Banik, Tanmoy Chatterjee, Shibendu Ghosh, Manik Pradhan
The underlying mechanisms towards the progression of end-stage renal disease (ESRD) in chronic kidney disease (CKD) are poorly understood and it still remains a major clinical stumbling block for early detection of CKD. Most patients with CKD pass through ESRD with the necessity of frequent hemodialysis (HD) treatment. At present, plasma urea and creatinine levels are examined in most of the CKD patients to monitor the patients' health status after dialysis. But it is really impossible to get immediate feedback of the patients' health as the conventional tests are involved with the collection of blood samples, laboratory processing for prolong time and finally analysis of those samples...
March 21, 2018: Journal of Breath Research
Paul E Smaldino, Thomas J Flamson, Richard McElreath
Human sociality depends upon the benefits of mutual aid and extensive communication. However, diverse norms and preferences complicate mutual aid, and ambiguity in meaning hinders communication. Here we demonstrate that these two problems can work together to enhance cooperation through the strategic use of deliberately ambiguous signals: covert signaling. Covert signaling is the transmission of information that is accurately received by its intended audience but obscured when perceived by others. Such signals may allow coordination and enhanced cooperation while also avoiding the alienation or hostile reactions of individuals with different preferences...
March 20, 2018: Scientific Reports
Stig Milan Thamsborg, Maria Vang Johansen, Peter Nejsum, Andrew R Williams, Helena Mejer
Veterinary parasitology has always been considered to be relevant and interesting by the Danish veterinary students. Students have to acquaint themselves with many new, small creatures with complicated and varied life cycles and with intricate Latin names that are difficult to pronounce, as only a few parasites have Danish names. In our veterinary curriculum, zoology has disappeared as a discipline, and parasitology has gradually moved from the third year to the beginning of the second year, which implies that, for example, pathology and pharmacology are "unknown fields"...
March 15, 2018: Veterinary Parasitology
Isidoro Feliciello, Davor Zahradka, Ksenija Zahradka, Siniša Ivanković, Nikolina Puc, Damir Đermić
Double strand breaks (DSBs) in E. coli chromosome (such as those induced by gamma rays) are repaired by recombination repair, during which a certain amount of DNA gets degraded. We monitored DNA degradation in gamma-irradiated cells to assess processing of DSBs. DNA degradation in irradiated cells is regulated by RecA protein concentration and its affinity of ssDNA binding, as well as by exonucleases that trim 3'-terminated ss tails. Here we determined the effects of proteins that affect formation and stability of RecA nucleofilaments on DNA degradation and cell survival...
March 16, 2018: Biochimie
Gaole Dai, Jin Shang, Jiping Huang
Heat can transfer via thermal conduction, thermal radiation, and thermal convection. All the existing theories of transformation thermotics and optics can treat thermal conduction and thermal radiation, respectively. Unfortunately, thermal convection has seldom been touched in transformation theories due to the lack of a suitable theory, thus limiting applications associated with heat transfer through fluids (liquid or gas). Here, we develop a theory of transformation thermal convection by considering the convection-diffusion equation, the equation of continuity, and the Darcy law...
February 2018: Physical Review. E
Takahiro Nemoto, Alexandros Alexakis
The fluctuations of turbulence intensity in a pipe flow around the critical Reynolds number is difficult to study but important because they are related to turbulent-laminar transitions. We here propose a rare-event sampling method to study such fluctuations in order to measure the time scale of the transition efficiently. The method is composed of two parts: (i) the measurement of typical fluctuations (the bulk part of an accumulative probability function) and (ii) the measurement of rare fluctuations (the tail part of the probability function) by employing dynamics where a feedback control of the Reynolds number is implemented...
February 2018: Physical Review. E
David Kavaler, Vladimir Filkov
Stack Overflow is a popular crowdsourced question and answer website for programming-related issues. It is an invaluable resource for software developers; on average, questions posted there get answered in minutes to an hour. Questions about well established topics, e.g., the coercion operator in C++, or the difference between canonical and class names in Java, get asked often in one form or another, and answered very quickly. On the other hand, questions on previously unseen or niche topics take a while to get a good answer...
2018: PloS One
(no author information available yet)
Over recent years, drug names have become more complex and difficult to pronounce (e.g. axicabtagene ciloleucel, ▼rurioctocog alfa pegol, ▼riociguat ).1,2 Although some rules underpin drug nomenclature, there are several examples of drugs with similar sounding names that are easily confused. In addition, the different levels of nomenclature (chemical, generic and brand names) may cause confusion for patients. Here, we provide an overview of how drugs get their names, the patterns that can be seen in naming conventions and highlight the risk associated with drugs with similar looking or similar sounding names...
March 2018: Drug and Therapeutics Bulletin
Anne Erreich
No abstract text is available yet for this article.
February 2018: Journal of the American Psychoanalytic Association
Loretta Theresa Ford, Jonathan David Berg
Novel psychotropic substances (NPS) also known as legal highs are a major concern in UK prisons, fuelling violence and putting a strain on resources for inmates requiring medical treatment for adverse effects. We provide a clinical toxicology service including routine screening for NPS. In 2015 we were approached by Her Majesty Prison Service (HMPS) search dog training team to advise on which NPS to target, and again in 2016 to further provide analytical support to test five letters which the dogs positively identified for NPS during routine searches of prison mail rooms...
January 1, 2018: Annals of Clinical Biochemistry
Carles Galdeano, Nicolas Coquelle, Monika Cieslikiewicz-Bouet, Manuela Bartolini, Belén Pérez, M Victòria Clos, Israel Silman, Ludovic Jean, Jacques-Philippe Colletier, Pierre-Yves Renard, Diego Muñoz-Torrero
Symptomatic treatment of myasthenia gravis is based on the use of peripherally-acting acetylcholinesterase (AChE) inhibitors that, in some cases, must be discontinued due to the occurrence of a number of side-effects. Thus, new AChE inhibitors are being developed and investigated for their potential use against this disease. Here, we have explored two alternative approaches to get access to peripherally-acting AChE inhibitors as new agents against myasthenia gravis, by structural modification of the brain permeable anti-Alzheimer AChE inhibitors tacrine, 6-chlorotacrine, and huprine Y...
March 11, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Katalin Szabó, Rudolf Gesztelyi, Nóra Lampé, Rita Kiss, Judit Remenyik, Georgina Pesti-Asbóth, Dániel Priksz, Zoltán Szilvássy, Béla Juhász
Fenugreek is a common herb possessing several bioactive components including diosgenin. Here, dietary fenugreek seed flour and diosgenin were evaluated on a model of endothelium-dependent vasorelaxation by abdominal aortas isolated from rats receiving high-fat, high-sugar diet (HFHSD). 60 male Wistar rats were randomized into six groups: (i) negative control getting conventional rat feed regimen; (ii) positive control receiving HFHSD; (iii) a test group fed 2 g/kg bw/day fenugreek seed flour (containing 10 mg/kg bw/day diosgenin) + HFHSD; (iv) three test groups fed 1, 10 and 50 mg/kg bw/day diosgenin + HFHSD...
March 10, 2018: International Journal of Molecular Sciences
Hiroya Kuwahara, Jindong Song, Takahiro Shimoura, Kie Yoshida-Tanaka, Tadahaya Mizuno, Tatsuki Mochizuki, Satoshi Zeniya, Fuying Li, Kazutaka Nishina, Tetsuya Nagata, Shingo Ito, Hiroyuki Kusuhara, Takanori Yokota
The blood-brain barrier (BBB) is increasingly regarded as a dynamic interface that adapts to the needs of the brain, responds to physiological changes, and gets affected by and can even promote diseases. Modulation of BBB function at the molecular level in vivo is beneficial for a variety of basic and clinical studies. Here we show that our heteroduplex oligonucleotide (HDO), composed of an antisense oligonucleotide and its complementary RNA, conjugated to α-tocopherol as a delivery ligand, efficiently reduced the expression of organic anion transporter 3 (OAT3) gene in brain microvascular endothelial cells in mice...
March 12, 2018: Scientific Reports
Lei Gao, Tao Zhu, Stefan Wabnitz, Yujia Li, Xiao Sheng Tang, Yu Long Cao
Various physical structures exhibit a fundamentally probabilistic nature over diverse scales in space and time, to the point that the demarcation line between quantum and classic laws gets blurred. Here, we characterize the probability of intermittency in the laminar-turbulence transition of a partially mode-locked fiber laser system, whose degree of coherence is deteriorated by multiple mode mixing. Two competing processes, namely the proliferation and the decay of an optical turbulent puff, determine a critical behavior for the onset of turbulence in such a nonlinear dissipative system...
March 5, 2018: Optics Express
Hamish C G Prosser, Omar Azzam, Markus P Schlaich
Resistant hypertension is commonly defined as office blood pressure above recommended target despite the use of optimal doses of at least three antihypertensive drugs including a diuretic. Australian guidelines recommend combination of blockers of the renin-angiotensin system, either ACE inhibitors or angiotensin receptor blockers, with calcium channel blockers and diuretics as the preferred triple therapy. A substantial proportion of hypertensive patients will require additional pharmacotherapy to achieve or get close to target blood pressure levels...
March 1, 2018: Heart, Lung & Circulation
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"