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https://www.readbyqxmd.com/read/27925745/equivalent-resistance-from-the-quantum-to-the-classical-transport-limit
#1
Saheli Sarkar, Damaris Kröber, Dirk K Morr
We generalize the concept of equivalent resistance to the entire range from coherent quantum to diffusive classical transport by introducing the notion of transport equivalent networks. We show that this novel concept presents us with a platform to simplify the structure of quantum networks while preserving their global and local transport properties, even in the presence of electron-phonon or electron-electron interactions. This allows us to describe the evolution of equivalent quantum networks to equivalent classical resistor networks with increasing interaction strength...
November 25, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27925010/the-effects-of-a-simple-method-for-cryopreservation-and-thawing-procedures-on-cord-blood-derived-dc-based-esophageal-carcinoma-vaccine
#2
J Yu, L Xie, S Chen, J Zhang, G Guo, B Chen
BACKGROUND: Producing sufficient numbers of DCs at one time point and subsequently cryopreserving the generated DCs in ready-for-use aliquots for clinical application is useful in cancer treatment. OBJECTIVE: To study the effects of a simplified cryopreservation method and thawing procedures acting on the biological characteristics and specific cytotoxic activity of cord blood derived DC-based esophageal carcinoma vaccine. MATERIALS AND METHODS: CD34+ hematopoietic stem cells were isolated from cord blood using CD34+ Progenitor Cell Isolation Kit by magnetic cell sorting system (MACS)...
July 2016: Cryo Letters
https://www.readbyqxmd.com/read/27924493/citric-acid-capped-iron-oxide-nanoparticles-as-an-effective-maldi-matrix-for-polymers
#3
Qiaoli Liang, Jennifer Sherwood, Thomas Macher, Joseph M Wilson, Yuping Bao, Carolyn J Cassady
A new matrix-assisted laser desorption ionization (MALDI) mass spectrometry matrix is proposed for molecular mass determination of polymers. This matrix contains an iron oxide nanoparticle (NP) core with citric acid (CA) molecules covalently bound to the surface. With the assistance of additives, the particulate nature of NPs allows the matrix to mix uniformly with polar or nonpolar polymer layers and promotes ionization, which may simplify matrix selection and sample preparation procedures. Several distinctively different polymer classes (polyethyleneglycol (PEG), polywax/polyethylene, perfluoropolyether, and polydimethylsiloxane) are effectively detected by the water or methanol dispersed NPCA matrix with NaCl, NaOH, LiOH, or AgNO3 as additives...
December 6, 2016: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/27924473/non-nucleotide-modification-of-anti-mirna-oligonucleotides
#4
Kim A Lennox, Christopher A Vakulskas, Mark A Behlke
MicroRNAs (miRNAs) are important modulators of gene expression. Synthetic anti-microRNA oligonucleotides (AMOs, or anti-miRs) are a form of steric-blocking antisense oligonucleotides (ASOs) that inhibit miRNA function through high-affinity binding and subsequent inactivation and/or degradation of the targeted miRNA. AMOs are a primary tool used to empirically determine the biological targets of a miRNA and can also be used therapeutically when overexpression of a miRNA contributes to a disease state. Chemical modification of synthetic AMOs enhance potency by protecting the oligonucleotide from nuclease degradation and by increasing binding affinity to the target miRNA...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27924114/total-synthesis-of-%C3%A2-naphthacemycin-a9-possessing-both-antibacterial-activity-against-methicillin-resistant-staphylococcus-aureus-and-circumventing-effect-of-%C3%AE-lactam-resistance
#5
Tomoyasu Hirose, Yasuhiro Kojima, Hidehito Matsui, Hideaki Hanaki, Masato Iwatsuki, Kazuro Shiomi, Satoshi Ōmura, Toshiaki Sunazuka
The total synthesis of KB-3346-5A9, named naphthacemycin A9, has been accomplished by combining the Dötz reaction and Suzuki-Miyaura cross coupling as well as employing Friedel-Crafts reaction with dienone-phenol rearrangement as key steps. We also describe the preparation of the simplified tetarimycin A and naphthacemycin A analogs as a model study, which coincidentally reveal unique properties of naturally occurring naphthacene-5,6,11(12H)-trione framework. The synthesized compounds were evaluated for antibacterial activity against methicillin-resistant Staphylococcus aureus and vancomycin-resistant Enterococcus (VRE) to elucidate their structure-activity relationships (SARs), the results of which agreed with a previously reported preliminary SAR study of tetarimycin A...
December 7, 2016: Journal of Antibiotics
https://www.readbyqxmd.com/read/27924070/modified-methods-for-isolation-of-pancreatic-stellate-cells-from-human-and-rodent-pancreas
#6
Liangtao Zhao, Baobao Cai, Zipeng Lu, Lei Tian, Song Guo, Pengfei Wu, Dong Qian, Qingcheng Xu, Kuirong Jiang, Yi Miao
Primary cultures of pancreatic stellate cells (PSCs) remain an important basis for in vitro study. However, effective methods for isolating abundant PSCs are currently lacking. We report on a novel approach to isolating PSCs from normal rat pancreases and human pancreatic ductal adenocarcinoma (PDAC) tissue. After anaesthesia and laparotomy of the rat, a blunt cannula was inserted into the pancreatic duct through the anti-mesentery side of the duodenum, and the pancreas was slowly infused with an enzyme solution until all lobules were fully dispersed...
November 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/27923571/a-simple-dried-blood-spot-method-for-in-vivo-measurement-of-ureagenesis-by-gas-chromatography-mass-spectrometry-using-stable-isotopes
#7
Gabriella Allegri, Sereina Deplazes, Hiu Man Viecelli, Déborah Mathis, Ralph Fingerhut, Johannes Häberle, Beat Thöny
BACKGROUND: Clinical management of inherited or acquired hyperammonemia depends mainly on the plasma ammonia level which is not a reliable indicator of urea cycle function as its concentrations largely fluctuate. The gold standard to assess ureagenesis in vivo is the use of stable isotopes. METHODS: Here we developed and validated a simplified in vivo method with [(15)N]ammonium chloride ([(15)N]H4Cl) as a tracer. Non-labeled and [(15)N]urea were quantified by GC-MS after extraction and silylation...
December 3, 2016: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/27922828/a-new-method-of-estimation-of-dose-conversion-coefficients-for-aquatic-biota
#8
Yang Li, Jiangguo Li, Huijuan Wang, Aijun Wang
In order to develop the basis of an approach, through which we can comprehend the relationships of radiation exposures and dose, and dose and radiological effects, large numbers of dosimetric data are required. It is complex to estimate the dosimetry involved due to enormous variability of organism shapes, masses, and their natural habitats. This paper aims to develop an empirical equation, which correlates dose conversion coefficients (DCCs) with organism volume V, density ρ, source energy E and curve fitting coefficients...
December 6, 2016: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/27922787/hydro-responsive-wound-dressings-simplify-t-i-m-e-wound-management-framework
#9
Karen Ousey, Alan A Rogers, Mark G Rippon
The development of wound management protocols and guidelines such as the T.I.M.E. acronym are useful tools to aid wound care practitioners deliver effective wound care. The tissue, infection/inflammation, moisture balance and edge of wound (T.I.M.E.) framework provides a systematic approach for the assessment and management of the majority of acute and chronic wounds. The debridement of devitalised tissue from the wound bed, the reduction in wound bioburden and effective management of wound exudate - i.e., wound bed preparation - are barriers to wound healing progression that are targeted by T...
December 2016: British Journal of Community Nursing
https://www.readbyqxmd.com/read/27922502/the-limb-girdle-muscular-dystrophies-and-the-dystrophinopathies
#10
Stanley Jones P Iyadurai, John T Kissel
PURPOSE OF REVIEW: The classic approach to identifying and accurately diagnosing limb-girdle muscular dystrophies (LGMDs) relied heavily on phenotypic characterization and ancillary studies including muscle biopsy. Because of rapid advances in genetic sequencing methodologies, several additional LGMDs have been molecularly characterized, and the diagnostic approach to these disorders has been simplified. This article summarizes the epidemiology, clinical features, and genetic defects underlying the LGMDs...
December 2016: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/27922233/diagnosis-of-cystic-fibrosis-with-chloride-meter-sherwood-m926s-chloride-analyzer%C3%A2-and-sweat-test-analysis-system-cf%C3%AE-collection-system%C3%A2-compared-to-the-gibson-cooke-method
#11
Nagehan Emiralioğlu, Uğur Özçelik, Ebru Yalçın, Deniz Doğru, Nural Kiper
Sweat test with Gibson Cooke (GC) method is the diagnostic gold standard for cystic fibrosis (CF). Recently, alternative methods have been introduced to simplify both the collection and analysis of sweat samples. Our aim was to compare sweat chloride values obtained by GC method with other sweat test methods in patients diagnosed with CF and whose CF diagnosis had been ruled out. We wanted to determine if the other sweat test methods could reliably identify patients with CF and differentiate them from healthy subjects...
2016: Turkish Journal of Pediatrics
https://www.readbyqxmd.com/read/27921144/the-genetic-architecture-of-the-mhc-class-ii-region-in-british-texel-sheep
#12
Alsagher O A Ali, Abigail Stear, Karen Fairlie-Clarke, Gholamreza Nikbakht Brujeni, N Mahiza Md Isa, M Shahrom Bin Salisi, Katarzyna Donskow-Łysoniewska, David Groth, Johannes Buitkamp, Michael J Stear
Understanding the structure of the major histocompatibility complex, especially the number and frequency of alleles, loci and haplotypes, is crucial for efficient investigation of the way in which the MHC influences susceptibility to disease. Nematode infection is one of the most important diseases suffered by sheep, and the class II region has been repeatedly associated with differences in susceptibility and resistance to infection. Texel sheep are widely used in many different countries and are relatively resistant to infection...
December 5, 2016: Immunogenetics
https://www.readbyqxmd.com/read/27920937/conversion-technique-from-neuroendoscopy-to-microsurgery-in-ventricular-tumors-technical-note
#13
Pedro Henrique da C F Pinto, Flavio Nigri, Gabriel N Gobbi, Egas M Caparelli-Daquer
BACKGROUND: Ventricular tumors represent a major neurosurgical challenge, making endoscopic approach an invaluable tool as it gained importance due to technological advances. Nevertheless, the method is not exempt of risk and limitations, sometimes requiring an open surgery. Thus, initial measurements must be adopted in order to simplify an eventual need for conversion to open craniotomy. METHODS: Here, we describe a series of 6 patients with ventricular tumors approached by neuroendoscopy where the conversion to microsurgery turned out to be necessary...
2016: Surgical Neurology International
https://www.readbyqxmd.com/read/27920613/core-and-complementary-chiropractic-lowering-barriers-to-patient-utilization-of-services
#14
John J Triano, Marion McGregor
OBJECTIVE: The use of chiropractic services has stalled while interest in accessing manipulation services is rising. The purpose of this paper is to consider this dilemma in the context of the dynamics of professional socialization, surveys of public attitudes, and a potential strategic action. DISCUSSION: This is a reflection work grounded in the literature on professional socialization and the attitudes held regarding chiropractic in modern society, to include its members, and in original data on training programs...
December 2016: Journal of Chiropractic Humanities
https://www.readbyqxmd.com/read/27920503/adverse-events-and-patients-perceived-health-related-quality-of-life-at-the-end-of-multidrug-resistant-tuberculosis-treatment-in-namibia
#15
Evans L Sagwa, Nunurai Ruswa, Farai Mavhunga, Timothy Rennie, Hubert Gm Leufkens, Aukje K Mantel-Teeuwisse
PURPOSE: The health-related quality of life (HRQoL) of patients completing multidrug-resistant tuberculosis (MDR-TB) treatment in Namibia and whether the occurrence of adverse events influenced patients' rating of their HRQoL was evaluated. PATIENTS AND METHODS: A cross-sectional analytic survey of patients completing or who recently completed MDR-TB treatment was conducted. The patients rated their HRQoL using the simplified Short Form-™ (SF-8) questionnaire consisting of eight Likert-type questions...
2016: Patient Preference and Adherence
https://www.readbyqxmd.com/read/27920461/long-term-safety-and-efficacy-of-supraventricular-tachycardia-ablation-with-a-simplified-approach
#16
P L Pellegrino, M Grimaldi, L Di Martino, M Caivano, F Santoro, L Di Biase, M Di Biase, N D Brunetti
No abstract text is available yet for this article.
2016: Acta Cardiologica
https://www.readbyqxmd.com/read/27919205/achieving-simplified-disease-activity-index-remission-in-patients-with-active-rheumatoid-arthritis-is-associated-with-subsequent-good-functional-and-structural-outcomes-in-a-real-world-clinical-setting-under-a-treat-to-target-strategy
#17
Fumio Hirano, Waka Yokoyama, Hayato Yamazaki, Koichi Amano, Atsushi Kawakami, Taichi Hayashi, Naoto Tamura, Shinsuke Yasuda, Hiroaki Dobashi, Takao Fujii, Satoshi Ito, Yuko Kaneko, Toshihiro Matsui, Yasuaki Okuda, Kazuyoshi Saito, Fumihito Suzuki, Ryusuke Yoshimi, Ryoko Sakai, Ryuji Koike, Hitoshi Kohsaka, Nobuyuki Miyasaka, Masayoshi Harigai
OBJECTIVE: To verify predictive validity of simplified disease activity index (SDAI) remission for subsequent functional and structural outcomes in real-world clinical settings under a treat-to-target strategy (T2T). METHODS: In this multicentre, prospective cohort study, T2T was implemented in rheumatoid arthritis patients with moderate-to-high disease activity. SDAI or clinical disease activity index was assessed every 12 weeks, and treatment was adjusted to achieve clinical remission or low disease activity...
December 6, 2016: Modern Rheumatology
https://www.readbyqxmd.com/read/27918594/real-time-reliability-verification-for-uav-flight-control-system-supporting-airworthiness-certification
#18
Haiyang Xu, Ping Wang
In order to verify the real-time reliability of unmanned aerial vehicle (UAV) flight control system and comply with the airworthiness certification standard, we proposed a model-based integration framework for modeling and verification of time property. Combining with the advantages of MARTE, this framework uses class diagram to create the static model of software system, and utilizes state chart to create the dynamic model. In term of the defined transformation rules, the MARTE model could be transformed to formal integrated model, and the different part of the model could also be verified by using existing formal tools...
2016: PloS One
https://www.readbyqxmd.com/read/27918548/multiplex-gene-editing-by-crispr-cpf1-using-a-single-crrna-array
#19
Bernd Zetsche, Matthias Heidenreich, Prarthana Mohanraju, Iana Fedorova, Jeroen Kneppers, Ellen M DeGennaro, Nerges Winblad, Sourav R Choudhury, Omar O Abudayyeh, Jonathan S Gootenberg, Wen Y Wu, David A Scott, Konstantin Severinov, John van der Oost, Feng Zhang
Targeting of multiple genomic loci with Cas9 is limited by the need for multiple or large expression constructs. Here we show that the ability of Cpf1 to process its own CRISPR RNA (crRNA) can be used to simplify multiplexed genome editing. Using a single customized CRISPR array, we edit up to four genes in mammalian cells and three in the mouse brain, simultaneously.
December 5, 2016: Nature Biotechnology
https://www.readbyqxmd.com/read/27918223/prevalence-of-trachoma-in-niger-state-north-central-nigeria-results-of-25-population-based-prevalence-surveys-carried-out-with-the-global-trachoma-mapping-project
#20
Mohammed Dantani Adamu, Caleb Mpyet, Nasiru Muhammad, Murtala Muhammad Umar, Habila Muazu, Francisca Olamiju, Sunday Isiyaku, Uwazoeke Onyebuchi, Usman Abubakar Bosso, Adamani William, Benjamin C Nwobi, Rebecca Willis, Rebecca Mann Flueckiger, Alexandre Pavluck, Brian K Chu, Nicholas Olobio, Anthony W Solomon
PURPOSE: To determine the prevalence of trachoma in each of the 25 local government areas (LGAs) of Niger State, Nigeria. METHODS: A population-based cross-sectional survey was conducted in each Niger State LGA between March and April 2014, as part of the Global Trachoma Mapping Project (GTMP). GTMP protocols were used in planning and conduct of the surveys. Using probability proportional to size, 25 clusters were selected; in each of these clusters, 25 households were enrolled for the survey...
December 5, 2016: Ophthalmic Epidemiology
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