keyword
MENU ▼
Read by QxMD icon Read
search

Deep block

keyword
https://www.readbyqxmd.com/read/29047276/%C3%AF-extended-isoindigo-based-derivative-a-promising-electron-deficient-building-block-for-polymer-semiconductors
#1
Long Xu, Zhiyuan Zhao, Mingchao Xiao, Jie Yang, Jian Xiao, Zhengran Yi, Shuai Wang, Yunqi Liu
The exploration of novel electron-deficient building blocks is a key task for developing high-performance polymer semiconductors in organic thin film transistors (OTFTs). In view of the situation of the lack of strong electron-deficient building blocks, we designed two novel π-extended isoindigo-based electron-deficient building blocks, IVI and F4IVI. The strong electron-deficient nature and the extended π-conjugated system for the two acceptor units endow their copolymers containing 2,2'-bithiophene donor units, PIVI2T and PF4IVI2T, deep lying HOMO/LUMO energy levels and the strong intermolecular interactions...
October 19, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29044880/targeted-deep-sequencing-of-effusion-cytology-samples-is-feasible-informs-spatiotemporal-tumor-evolution-and-has-clinical-and-diagnostic-utility
#2
Jonas Leichsenring, Anna-Lena Volckmar, Martina Kirchner, Daniel Kazdal, Mark Kriegsmann, Fabian Stögbauer, Teresa Bockmayr, Frederick Klauschen, Felix J F Herth, Roland Penzel, Arne Warth, Peter Schirmacher, Volker Endris, Albrecht Stenzinger
During the course of disease, many cancer patients eventually present with metastatic disease including peritoneal or pleural spread. In this context, cytology specimens derived from ascites or pleural effusion may help to differentiate malignant from benign conditions and sometimes yield diagnosis of a malignancy. However, even when supported by immunohistochemistry, cytological interpretation can be challenging, especially if tumor cellularity is low. Here, we investigated whether targeted deep sequencing of formalin-fixed and paraffin embedded (FFPE) cytology specimens of cancer patients is feasible, and has diagnostic and clinical impact...
October 16, 2017: Genes, Chromosomes & Cancer
https://www.readbyqxmd.com/read/29043326/symmetrical-or-non-symmetrical-luminescent-turnstiles-based-on-hydroquinone-stators-and-rotors-bearing-pyridyl-or-p-dimethylaminopyridyl-coordinating-units
#3
Bérangère Godde, Abdelaziz Jouaiti, Audrey Fluck, Nathalie Kyritsakas, Matteo Mauro, Mir Wais Hosseini
The design and synthesis of a novel family of molecular turnstiles T1-T5 were achieved. All five turnstiles are based on a stator and a rotor covalently interconnected. While turnstiles T1-T2 are based on a symmetric stator equipped with two coordinating pyridyl units and a rotor bearing either a pyridyl or p-dimethylaminopyridyl coordinating moiety, the two non-symmetric turnstiles T4 and T5 are based on a stator bearing only a single pyridyl unit and the same rotor as T1 and T2 mentioned above. The switching between the open (T1-T5) and the closed (T-M) states of the turnstiles by metal cations (M = Ag(+) or Pd(2+)) was investigated in solution by using 1D and 2D NMR techniques...
October 18, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29040455/influence-of-deep-neuromuscular-block-on-the-surgeon%C3%A5-assessment-of-surgical-conditions-during-laparotomy-a-randomized-controlled-double-blinded-trial-with-rocuronium-and-sugammadex
#4
M V Madsen, S Scheppan, E Mørk, P Kissmeyer, J Rosenberg, M R Gätke
No abstract text is available yet for this article.
October 10, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29030369/post-laser-assisted-in-situ-keratomileusis-keratomycotic-malignant-glaucoma
#5
Pranita Sahay, Prafulla Kumar Maharana, Namrata Sharma, Jeewan S Titiyal
We report a case of a 24-year-old male patient with post-laser assisted in situ keratomileusis (LASIK) culture-proven mycotic keratitis who developed pupillary block glaucoma on day 19 of medical management. The case was initially managed with multiple Nd-Yag peripheral iridotomy along with systemic and topical antiglaucoma medications. However, an emergency therapeutic penetrating keratoplasty (TPK) with lens extraction was done in view of persistently raised intraocular pressure (IOP) and seclusio pupillae...
October 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29029115/whole-genome-next-generation-sequencing-to-study-within-host-evolution-of-chronic-norovirus-infection-among-immunocompromised-patients
#6
J van Beek, M de Graaf, S L Smits, C M E Schapendonk, G M G M Verjans, H Vennema, A A van der Eijk, M V T Phan, M L Cotten, M P G Koopmans
Background: The genus Norovirus comprises large genetic diversity and new GII.4 variants emerge every 2-3 years. It is unknown in which host these new variants originate. Here we study whether prolonged shedders within the immunocompromised population could be a reservoir for newly emerging strains. Methods: Faecal samples (n=65) from immunocompromised patients (n=16) were retrospectively selected. Isolated viral RNA was enriched by hybridization with a custom norovirus whole-genome RNA bait set and deep sequenced on the Illumina MiSeq platform...
September 27, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29027690/ultrasound-guided-posterior-femoral-cutaneous-nerve-block-a-cadaveric-study
#7
Christopher S Johnson, Rebecca L Johnson, Adam D Niesen, David E Stoike, Wojciech Pawlina
OBJECTIVES: To identify any anatomic barriers to local anesthetic spread between the sciatic nerve (SN) and the posterior femoral cutaneous nerve (PFCN) at the level of the infragluteal crease and to describe a potential technique for an ultrasound (US)-guided subgluteal PFCN block in a cadaveric model. METHODS: Bilateral US-guided subgluteal injections of a colored latex solution were performed around the SN (15 mL) and PFCN (10 mL) in 4 unembalmed cadavers, for a total of 8 cadaver thighs...
October 13, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29021948/the-association-between-distance-to-public-amenities-and-cardiovascular-risk-factors-among-lower-income-singaporeans
#8
K K Lim, Y H Kwan, C S Tan, L L Low, A P Chua, W Y Lee, L Pang, H Y Tay, S Y Chan, T Ostbye
Existing evidence on the association between built environment and cardiovascular disease (CVD) risk factors focused on the general population, which may not generalize to higher risk subgroups such as those with lower socio-economic status (SES). We examined the associations between distance to 5 public amenities from residential housing (public polyclinic, subsidized private clinic, healthier eatery, public park and train station) and 12 CVD risk factors (physical inactivity, medical histories and unhealthy dietary habits) among a study sample of low income Singaporeans aged ≥ 40 years (N = 1972)...
December 2017: Preventive Medicine Reports
https://www.readbyqxmd.com/read/28990015/efficacy-of-the-twin-block-a-peripheral-nerve-block-for-the-management-of-chronic-masticatory-myofascial-pain-a-case-series
#9
Veena Kanti, Sowmya Ananthan, Gayathri Subramanian, Samuel Y P Quek
Masticatory myofascial pain is the one of the most common etiologies for nonodontogenic pain, often characterized by the presence of trigger points. Conventional management includes approaches such as jaw exercises, physical therapy, intraoral appliances, medications, and trigger point injections. Peripheral/regional nerve blocks have shown to be effective in managing myogenous pain conditions. The twin block is a nerve block that blocks both the masseteric and the anterior deep temporal nerves. The objective of this case series is to illustrate expeditious and sustained efficacy of the twin block in the management of chronic masticatory myofascial pain...
October 6, 2017: Quintessence International
https://www.readbyqxmd.com/read/28988904/subcallosal-cingulate-deep-brain-stimulation-for-treatment-resistant-depression-a-multisite-randomised-sham-controlled-trial
#10
Paul E Holtzheimer, Mustafa M Husain, Sarah H Lisanby, Stephan F Taylor, Louis A Whitworth, Shawn McClintock, Konstantin V Slavin, Joshua Berman, Guy M McKhann, Parag G Patil, Barry R Rittberg, Aviva Abosch, Ananda K Pandurangi, Kathryn L Holloway, Raymond W Lam, Christopher R Honey, Joseph S Neimat, Jaimie M Henderson, Charles DeBattista, Anthony J Rothschild, Julie G Pilitsis, Randall T Espinoza, Georgios Petrides, Alon Y Mogilner, Keith Matthews, DeLea Peichel, Robert E Gross, Clement Hamani, Andres M Lozano, Helen S Mayberg
BACKGROUND: Deep brain stimulation (DBS) of the subcallosal cingulate white matter has shown promise as an intervention for patients with chronic, unremitting depression. To test the safety and efficacy of DBS for treatment-resistant depression, a prospective, randomised, sham-controlled trial was conducted. METHODS: Participants with treatment-resistant depression were implanted with a DBS system targeting bilateral subcallosal cingulate white matter and randomised to 6 months of active or sham DBS, followed by 6 months of open-label subcallosal cingulate DBS...
October 4, 2017: Lancet Psychiatry
https://www.readbyqxmd.com/read/28987732/switch-loop-flexibility-affects-substrate-transport-of-the-acrb-efflux-pump
#11
Reinke T Müller, Timothy Travers, Hi-Jea Cha, Joshua L Phillips, S Gnanakaran, Klaas M Pos
The functionally important switch-loop of the trimeric multidrug transporter AcrB separates the access and deep drug binding pockets in every protomer. This loop, comprising 11 amino acid residues, has been shown to be crucial for substrate transport, as drugs have to travel past the loop to reach the deep binding pocket and from there are transported outside the cell via the connected AcrA and TolC channels. It contains four symmetrically arranged glycine residues suggesting that flexibility is a key feature for pump activity...
October 5, 2017: Journal of Molecular Biology
https://www.readbyqxmd.com/read/28983872/pearls-and-pitfalls-of-optical-coherence-tomography-angiography-in-the-multimodal-evaluation-of-uveitis
#12
REVIEW
Francesco Pichi, David Sarraf, Mariachiara Morara, Shahana Mazumdar, Piergiorgio Neri, Vishali Gupta
BACKGROUND: Optical coherence tomography angiography (OCTA) employs a novel imaging algorithm that detects the amplitude or phase decorrelation of blood cell movement. It thus provides a flow map with depth-resolved visualization of the various vascular layers in the posterior pole of the eye including the retina capillary plexus and the choroid. In the past 3 years, the number of research papers on the subject of OCTA in retinal diseases has grown exponentially including important applications in the field of uveitis...
October 5, 2017: Journal of Ophthalmic Inflammation and Infection
https://www.readbyqxmd.com/read/28983323/in-chip-microstructures-and-photonic-devices-fabricated-by-nonlinear-laser-lithography-deep-inside-silicon
#13
Onur Tokel, Ahmet Turnali, Ghaith Makey, Parviz Elahi, Tahir Çolakoğlu, Emre Ergeçen, Özgün Yavuz, René Hübner, Mona Zolfaghari Borra, Ihor Pavlov, Alpan Bek, Raşit Turan, Denizhan Koray Kesim, Serhat Tozburun, Serim Ilday, F Ömer Ilday
Silicon is an excellent material for microelectronics and integrated photonics1-3 with untapped potential for mid-IR optics4. Despite broad recognition of the importance of the third dimension5,6, current lithography methods do not allow fabrication of photonic devices and functional microelements directly inside silicon chips. Even relatively simple curved geometries cannot be realised with techniques like reactive ion etching. Embedded optical elements, like in glass7, electronic devices, and better electronic-photonic integration are lacking8...
October 2017: Nature Photonics
https://www.readbyqxmd.com/read/28982067/intramolecular-deactivation-processes-of-electronically-excited-lanthanide-iii-complexes-with-organic-acids-of-low-molecular-weight
#14
Katja Burek, Sascha Eidner, Stefanie Kuke, Michael U Kumke
The luminescence of Lanthanide(III) complexes with different model ligands was studied under direct as well as sensitized excitation conditions. The research was performed in the context of studies dealing with deep-underground storages for high-level nuclear waste. Here, Lanthanide(III) ions served as natural analogues for Actinide(III) ions and the low-molecular weight organic ligands are present in clay minerals and furthermore, they were employed as proxies for building blocks of humic substances, which are important complexing molecules in the natural environment, e...
September 18, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28979262/cd28-blockade-ex-vivo-induces-alloantigen-specific-immune-tolerance-but-preserves-t-cell-pathogen-reactivity
#15
Barbara Dillinger, Sarah Ahmadi-Erber, Klara Soukup, Angela Halfmann, Silke Schrom, Bernard Vanhove, Peter Steinberger, Rene Geyeregger, Stephan Ladisch, Alexander Michael Dohnal
Donor T-cells contribute to reconstitution of protective immunity after allogeneic hematopoietic stem cell transplantation (HSCT) but must acquire specific tolerance against recipient alloantigens to avoid life-threatening graft-versus-host disease (GvHD). Systemic immunosuppressive drugs may abrogate severe GvHD, but this also impedes memory responses to invading pathogens. Here, we tested whether ex vivo blockade of CD28 co-stimulation can enable selective T-cell tolerization to alloantigens by facilitating CD80/86-cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) signaling...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28972742/ultra-small-paramagnetic-iron-oxide-nanoprobe-targeting-egfr-for-in-vivo-mr-imaging-of-hepatocellular-carcinoma
#16
Yan Chen, Quan Zhou, Xue Li, Fa Wang, Kevin Heist, Rork D Kuick, Scott Owens, Thomas Wang
Hepatocellular carcinoma (HCC) is a common worldwide cancer that is rising rapidly in incidence. MRI is a powerful non-invasive imaging modality for HCC detection but lack of specific contrast agents limits visualization of small tumors. EGFR is frequently overexpressed in HCC and is a promising target. Peptides have fast binding kinetics, short circulatory half-life, low imaging background, high vascular permeability, and enhanced tissue diffusion for deep tumor penetration. We demonstrate a peptide specific for EGFR labeled with an ultra-small paramagnetic iron oxide (UPIO) nanoparticle with 3...
October 3, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28970935/optically-transparent-dense-colloidal-gels
#17
M Zupkauskas, Y Lan, D Joshi, Z Ruff, E Eiser
Traditionally it has been difficult to study the porous structure of dense colloidal gels and (macro) molecular transport through them simply because of the difference in refractive index between the colloid material and the continuous fluid phase surrounding it, rendering the samples opaque even at low colloidal volume fractions. Here, we demonstrate a novel colloidal gel that can be refractive index-matched in aqueous solutions owing to the low refractive index of fluorinated latex (FL)-particles (n = 1.37)...
August 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/28969421/polylactide-based-block-co-polymeric-micelles-loaded-with-chlorin-e6-for-photodynamic-therapy-in-vitro-evaluation-in-monolayer-and-3d-spheroid-models
#18
Preeti Kumari, Shreya Jain, Balaram Ghosh, Vladimir Petrovich Zorin, Swati Biswas
Recently, photodynamic therapy (PDT) has found wide application as a non-invasive treatment modality for several cancers. However, the suboptimal delivery of photosensitizers (PSs) to the tumor site is a drawback, which inhibits the effectiveness of PDT. Hydrophobicity, strong oxygen and light dependence, and limited tissue penetrability of photosensitizers represent the major barriers to the clinical application of PDT. In order to improve biopharmaceutical properties of a clinically approved photosensitizer Chlorin e6 (Ce6), we developed a nano-formulation encapsulating Ce6 in methoxy-poly(ethylene glycol)-poly(D,L-lactide) (mPEG-PLA) co-polymeric micelles...
October 2, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28969327/influence-of-deep-neuromuscular-block-on-the-surgeon%C3%A5-assessment-of-surgical-conditions-during-laparotomy-a-randomized-controlled-double-blinded-trial-with-rocuronium-and-sugammadex
#19
M V Madsen, S Scheppan, E Mørk, P Kissmeyer, J Rosenberg, M R Gätke
Background: During laparotomy, surgeons may experience difficult surgical conditions if the patient's abdominal wall or diaphragm is tense. Deep neuromuscular block (NMB), defined as a post-tetanic-count (PTC) between 0-1, paralyses the abdominal wall muscles and the diaphragm. We hypothesized that deep NMB (PTC 0-1) would improve subjective ratings of surgical conditions during upper laparotomy as compared with standard NMB. Methods: This was a double blinded, randomized study...
September 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28960350/antimicrobial-effectiveness-of-oxidant-and-chelating-agents-combination-in-infected-dentine-an-ex-vivo-confocal-laser-scanning-microscopy-study
#20
L Giardino, M Del Fabbro, F Cesario, F S Fernandes, F B Andrade
AIM: To evaluate the intratubular antimicrobial activity of several oxidant and chelating agents associated or not with surfactants in experimentally infected root canals, using confocal laser scanning microscopy. METHODOLOGY: Twenty-four dentine blocks from bovine incisors were contaminated for five days with Enterococcus faecalis (ATCC- 29212). Ten contaminated dentine specimens were irrigated for 5 min with 5.25% NaOCl followed by 17% EDTA for 2 min, and the other 10 with Hypoclean for 5 min followed by Tetraclean NA for 2 min...
September 27, 2017: International Endodontic Journal
keyword
keyword
88947
1
2
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"